Four-in-one zoning synchronous elimination system and method for toxic gas of flue gas flow

Abstract

The invention discloses a flue gas flow toxic gas four-in-one zoning synchronous elimination system and method. According to the system, a multi-stage reverse airflow dust removal device comprises an airflow dust removal cabin; the first gas concentration monitoring module, the flow equalizing plate, the first-stage dehumidification and dust filtration unit, the second-stage dust filtration unit, the third-stage dust filtration unit and the reverse airflow blowing mechanism are sequentially mounted in the airflow dust removal cabin at intervals from left to right; the toxic gas eliminating device comprises a gas eliminating cabin; the gas eliminating cabin is divided into a carbon monoxide eliminating chamber, a nitrogen oxide eliminating chamber and a sulfide eliminating chamber by the four partition plates, and an adjusting valve is mounted on each partition plate; the negative pressure suction device comprises a negative pressure cabin; an auxiliary suction mechanism, a second gas concentration monitoring module and a negative pressure fan are sequentially mounted in the negative pressure chamber. According to the method, the flue gas flow toxic gas four-in-one zoning synchronous eliminating system is used for conducting zoning synchronous eliminating operation on the flue gas flow toxic gas. The system and the method can realize comprehensive purification and safe elimination of flue gas flow.

Description

Technical Field

[0001] The invention belongs to the technical field of poisonous gas purification, and in particular is a system and method for synchronously eliminating poisonous gases in smoke and wind flow in a four-in-one partition. Background Art

[0002] In some production processes, a large amount of toxic fumes are usually generated. These fumes mainly contain carbon monoxide (CO), nitrogen oxides (NO X ), sulfur dioxide (SO X ) and harmful substances such as dust particles. These toxic gases not only pose a serious threat to the life safety of workers, but also restrict the safe production of enterprises. The common means of smoke control is mechanical ventilation, which reduces the concentration of harmful gases by diluting or forcibly discharging harmful gases. However, toxic gases are easy to accumulate in complex terrain or poorly ventilated areas, especially in the working conditions where high-concentration smoke is produced instantly, which further weakens the efficiency of the ventilation system. In addition, ventilation equipment in some disaster sites such as fires, especially key components such as air ducts, are prone to damage during disasters, resulting in a sudden drop in ventilation capacity, further affecting the dilution and emission of smoke. On the other hand, although mechanical ventilation equipment can reduce the concentration of toxic gases to a certain extent, its high investment and huge energy consumption, as well as efficiency bottlenecks in deep tunnels or complex geological conditions, limit its widespread application. Although individual toxic gas protection equipment can provide short-term protection for workers, its wearing time and operating burden make it difficult to provide continuous and effective protection in long-term work. Therefore, there is an urgent need for a device that can actively inhale toxic smoke and simultaneously process CO, NO X 、SO X A new system for removing dust particles can achieve comprehensive purification and safe elimination of flue gas flow, fundamentally ensuring the safety of the working environment and the health of construction workers. Summary of the invention

[0003] In view of the problems existing in the above-mentioned prior art, the present invention provides a system and method for the four-in-one zoned synchronous elimination of toxic gases in smoke and air flow. The system has a compact structure and a high degree of integration. It can perform four-in-one treatment of nitrogen oxides, sulfides, carbon monoxide and dust in the smoke flow, and can realize comprehensive purification and safe elimination of smoke flow, which can fundamentally guarantee the safety of the working environment and the health of construction workers; the method can realize the efficient synchronous elimination of toxic gases and dust particles, can achieve the effect of four-in-one synchronous disposal, can effectively improve the working environment, and can greatly improve the environmental protection benefits.

[0004] In order to achieve the above-mentioned object, the present invention provides a four-in-one zone synchronous elimination system for smoke and wind flow toxic gases, including a multi-stage reverse airflow dust removal device, a toxic gas elimination device and a negative pressure suction device;

[0005] The multi-stage reverse airflow dust removal device, the poisonous gas elimination device and the negative pressure suction device are sequentially connected in the transverse direction;

[0006] The multi-stage reverse airflow dust removal device comprises an airflow dust removal cabin, a first gas concentration monitoring module, a flow equalizing plate, a primary dehumidification dust filter unit, a secondary dust filter unit, a tertiary dust filter unit, and a reverse airflow blowing mechanism; the airflow dust removal cabin is a cylindrical structure with openings at both ends, and a transverse airflow dust removal channel is formed inside the cabin; the first gas concentration monitoring module, the flow equalizing plate, the primary dehumidification dust filter unit, the secondary dust filter unit, the tertiary dust filter unit, and the reverse airflow blowing mechanism are sequentially installed in the airflow dust removal cabin from left to right; the first gas concentration monitoring module is located in the airflow dust removal cabin; At the center of the dust passage, it includes a first CO detection module, a first nitrogen oxide detection module, a first sulfide detection module and a first gas sensor, which are respectively used to detect the first CO, the first nitrogen oxide, the first sulfide and the first gas concentration signal; the first-level dehumidification and dust filtering unit is used to perform dehumidification and dust filtering on the passing airflow; the second-level dust filtering unit and the third-level dust filtering unit are both used to perform dust filtering on the passing airflow; the reverse airflow blowing mechanism is used to provide reverse cleaning airflow, and the number of the reverse airflow blowing mechanism is two, and they are respectively installed at the top and bottom of the airflow dust removal cabin;

[0007] The poisonous gas elimination device comprises a gas elimination cabin, an end left baffle, a middle left baffle, a middle right baffle, an end right baffle, a first regulating valve, a second regulating valve, a third regulating valve, a fourth regulating valve, a first dehumidification layer, a second dehumidification layer, a third dehumidification layer, a first elimination layer, a second elimination layer, a third elimination layer, an overall denitrification module, and an overall desulfurization module; the gas elimination cabin is a cylindrical structure with openings at both ends, and a transverse gas elimination channel is formed inside the structure; the left end of the gas elimination cabin is fixedly connected to the right end of the airflow dust removal cabin by a first connecting flange; the end left baffle, the middle left baffle, the middle right baffle, The right baffle of the middle section and the right baffle of the end section are fixedly installed in the interior of the gas elimination cabin at intervals from left to right, and the left baffle of the end section and the right baffle of the end section are respectively located at the left and right ends of the gas elimination cabin. At the same time, the four baffles separate the gas elimination channel from left to right into a carbon monoxide elimination chamber, a nitrogen oxide elimination chamber and a sulfide elimination chamber; the first regulating valve is installed in the reserved installation hole at the lower part of the left baffle of the end section; the second regulating valve is installed in the reserved installation hole at the upper part of the left baffle of the middle section; the third regulating valve is installed in the reserved installation hole at the lower part of the right baffle of the middle section; the fourth regulating valve is installed in The first dehumidification layer, the second dehumidification layer, the third dehumidification layer, the first elimination layer, the second elimination layer and the third elimination layer are all composed of a main frame and a filler filled in the main frame; the first dehumidification layer, the second dehumidification layer, the third dehumidification layer, the first elimination layer, the second elimination layer and the third elimination layer have pores or channels for airflow to pass through, and are installed in the carbon monoxide elimination chamber in sequence from bottom to top; the fillers in the first dehumidification layer, the second dehumidification layer and the third dehumidification layer are all desiccants for dehumidifying the airflow; the first elimination layer The fillers in the removal layer, the second elimination layer and the third elimination layer are all CO catalysts, which are used to eliminate CO in the airflow; the interior of the integral denitrification module has pores or flow channels for airflow to pass through, and its surface is coated with a denitrification catalyst coating. The integral denitrification module is installed in the middle of the nitrogen oxide elimination chamber to eliminate nitrogen oxides in the airflow; the interior of the integral desulfurization module has pores or flow channels for airflow to pass through, and its surface is coated with a desulfurization catalyst coating. The integral desulfurization module is installed in the middle of the sulfide elimination chamber to eliminate sulfur dioxide in the airflow;

[0008] The negative pressure suction device comprises a negative pressure cabin, a negative pressure fan, an auxiliary suction mechanism, an induced air duct, an exhaust duct, a power air supply duct, and a second gas concentration monitoring module; the negative pressure cabin is an open structure at the left end and a closed structure at the right end, and a negative pressure chamber is formed inside the negative pressure cabin; the left end of the negative pressure cabin is fixedly connected to the right end of the gas elimination cabin by a second connecting flange; the negative pressure fan is installed at the lower part of the right part of the negative pressure chamber, its air inlet is located at the left end, and its air outlet passes through to the outside of the right end of the negative pressure cabin; the auxiliary suction mechanism is installed at the upper part of the left part of the negative pressure chamber, and the auxiliary suction mechanism is an induced air device driven by wind, which is vertically arranged, with the air inlet end located at the upper end and the air outlet end located at the lower side; the induced air duct is a 90-degree elbow, its air outlet end is connected to the air inlet end of the auxiliary suction mechanism, and its air inlet end extends to near the second The position of the four regulating valves; the exhaust duct is a 90-degree elbow, the air inlet end of which is connected to the air outlet end of the auxiliary suction mechanism, and the air outlet end extends to a position close to the air inlet of the negative pressure fan; a solenoid valve is connected in series to the power air supply duct, the air outlet end of which is connected to the power air supply port of the auxiliary suction mechanism, and the air inlet end passes through the outside of the negative pressure chamber and is connected to an external high-pressure air source; the second gas concentration monitoring module is installed in the negative pressure chamber and is located between the auxiliary suction mechanism and the negative pressure fan; the second gas concentration monitoring module is located at the center of the airflow dust removal channel, and includes a second CO detection module, a second nitrogen oxide detection module, a second sulfide detection module and a second gas sensor, which are used to detect the second CO, second nitrogen oxide, second sulfide and second gas concentration signals, respectively.

[0009] Furthermore, in order to facilitate the change of working height to adapt to different working conditions, it also includes a lifting support device, which is arranged below the gas elimination cabin, and the lifting support device includes an upper support platform, a lower support platform, a lifting hydraulic cylinder, a buffer connecting piece and an electromagnetic reversing valve group; the upper support platform is horizontally arranged below the gas elimination cabin; the lower support platform is horizontally arranged below the upper support platform; four lifting hydraulic cylinders are distributed in a rectangular shape on the upper support platform and the lower support platform, and their piston rod ends are fixedly connected to the lower end surface of the upper support platform, and their cylinder bottom ends are fixedly connected to the upper end surface of the lower support platform; four buffer connecting pieces are distributed in a rectangular shape between the gas elimination cabin and the upper support platform, and their upper ends are fixedly connected to the lower end of the gas elimination cabin, and their lower ends are fixedly connected to the upper end of the lower support platform; the electromagnetic reversing valve group is installed on the lower support platform, and its working oil ports are respectively connected to the four lifting hydraulic cylinders, and its oil inlet is connected to the hydraulic oil source.

[0010] As a preferred embodiment, the first-stage dehumidification and dust filtering unit includes a metal grille frame, a wire mesh gas-liquid separator and a wire mesh dust collector; the interior of the metal grille frame has a plurality of transversely connected installation channels; a plurality of wire mesh gas-liquid separators are correspondingly installed on the left side of a plurality of installation channels; a plurality of wire mesh dust collectors are correspondingly installed on the right side of a plurality of installation channels; the second-stage dust filtering unit is a coarse-effect plate filter; the third-stage dust filtering unit is a flame-retardant ultrafine filter material high-efficiency filter.

[0011] As a preferred embodiment, the reverse airflow blowing mechanism includes an air pump, an air duct and a nozzle; the air pump is installed on the outer wall of the gas elimination cabin; the inlet end of the air duct is connected to the outlet end of the air pump, and its inlet end penetrates into the interior of the gas elimination cabin; the nozzle is fixedly supported inside the gas elimination cabin, its nozzle is facing the direction of the three-stage dust filter unit, and its inlet end is connected to the outlet end of the air duct.

[0012] As a preferred embodiment, the thickness of the first dehumidification layer, the second dehumidification layer and the third dehumidification layer are all 3-5 cm; the desiccant contained in the first dehumidification layer, the second dehumidification layer and the third dehumidification layer is one of silicon dioxide, aluminum silicate and calcium chloride, and the particle size of the desiccant in the first dehumidification layer is 5-8 mm, the particle size of the desiccant in the second dehumidification layer is 3-5 mm, and the particle size of the desiccant in the third dehumidification layer is 1-3 mm; the thickness of the first elimination layer, the second elimination layer and the third elimination layer are all 3-5 cm, and the interval between two adjacent layers is 1-2 cm; the CO catalyst contained in the first elimination layer, the second elimination layer and the third elimination layer is prepared by a hydrothermal method or a coprecipitation method, and the particle size of the CO catalyst in the first elimination layer and the second elimination layer is 4-6 mm, and the particle size of the CO catalyst in the third elimination layer is 2-4 mm.

[0013] As a preferred embodiment, the overall denitrification module is composed of a tree-branch unit, a flow plate unit and a straight unit from top to bottom;

[0014] The dendrite-shaped unit comprises a plurality of uniformly distributed dendrite-shaped monomers and a plurality of transverse connectors 1, wherein the plurality of dendrite-shaped monomers are staggered and connected to each other through a plurality of transverse connectors 1; the surfaces of the dendrite-shaped monomers and the transverse connectors 1 are coated with a denitrification catalyst coating, and a staggered flow channel is formed in the dendrite-shaped unit;

[0015] The flow plate unit includes a plurality of transverse baffles and a plurality of vertical connectors, the plurality of transverse baffles are vertically spaced apart, and two adjacent transverse baffles are fixedly connected by a plurality of vertical connectors; a plurality of vent holes are provided on the surface of each transverse baffle, and the surfaces of the transverse baffles and the vertical connectors are coated with a denitrification catalyst coating;

[0016] The flat unit includes a plurality of vertical plates and a plurality of transverse connectors. The plurality of vertical plates are distributed in a transverse manner and are connected to each other by a plurality of transverse connectors. Each vertical plate is provided with a plurality of air holes all over its surface, and the surfaces of the vertical plates and the transverse connectors are coated with a denitrification catalyst coating.

[0017] Preferably, the integrated desulfurization module comprises a plurality of vertical baffles which are spaced apart from each other in sequence, each vertical baffle is provided with a plurality of convection holes distributed all over its surface, and its surface is coated with a desulfurization catalyst coating.

[0018] As a preference, the main frame is a flat box structure, which includes a square frame and a hard mesh, and two hard meshes are encapsulated at two open ends of the square frame.

[0019] In order to facilitate the realization of fully automated control, it also includes a third gas concentration monitoring module, an alarm and a controller; the third gas concentration monitoring module is arranged in front of the airflow dust removal cabin, and the third gas concentration monitoring module includes a third CO detection module, a third nitrogen oxide detection module, a third sulfide detection module and a first gas sensor, which are respectively used to detect the third CO, third nitrogen oxide, third sulfide and third gas concentration signals; the alarm is installed on the outside of the negative pressure cabin for performing warning actions; the controller is installed in the monitoring center, and is respectively connected to the solenoid valve, the first gas concentration monitoring module, the second gas concentration monitoring module, the reverse airflow blowing mechanism, the first regulating valve, the second regulating valve, the third regulating valve, the fourth regulating valve, the negative pressure fan and the auxiliary suction mechanism.

[0020] In the present invention, a first gas concentration monitoring module is arranged on the air inlet side of the airflow dust removal chamber, so that the CO, nitrogen oxides, sulfides and gas concentration data on the air inlet side can be obtained in real time, and the elimination operation process can be adjusted according to the concentration of different gases. By setting the equalizing plate, it is convenient to carry out equal flow treatment on the gas; a first-level dehumidification dust filter unit, a second-level dust filter unit and a third-level dust filter unit are arranged in sequence on the downstream side of the equalizing plate, and a first-level dehumidification and a third-level dust filter treatment can be carried out. Through the dehumidification treatment, the probability of particle adhesion can be effectively reduced. Through the multi-stage dust filter treatment, particles can be prevented from entering the gas elimination chamber, and the situation that particles block the dehumidification layer, the elimination layer, the overall denitrification module and the overall desulfurization module will not occur, which is conducive to ensuring the subsequent elimination effect and efficiency of the toxic gas. By setting a reverse airflow blowing mechanism on the rear side of the third-level dust filter unit, the particles attached to the first-level dehumidification dust filter unit, the second-level dust filter unit and the third-level dust filter unit can be blown off by reflecting the clean airflow, so that the reuse process of each level of units can be realized. The gas elimination channel is separated into a carbon monoxide elimination chamber, a nitrogen oxide elimination chamber and a sulfide elimination chamber by using an end left partition, a middle left partition, a middle right partition and an end right partition, and a first regulating valve is installed at the lower part of the end left partition, a second regulating valve is installed at the upper part of the middle left partition, a third regulating valve is installed at the lower part of the middle right partition, and a fourth regulating valve is installed at the upper part of the end right partition. The airflow passing through the carbon monoxide elimination chamber can be made to flow from bottom to top, the airflow passing through the nitrogen oxide elimination chamber can be made to flow from top to bottom, and the airflow passing through the sulfide elimination chamber can be made to flow from bottom to top, thereby effectively extending the passage time of the airflow in each chamber, and in combination with the elimination layer, denitrification module and desulfurization module in each chamber, it is possible to achieve the removal of carbon monoxide (CO) and nitrogen oxides (NO X ), sulfur dioxide (SO X ) for elimination, and with the multi-stage dust filter unit in the airflow dust removal cabin, dust particles, carbon monoxide (CO), nitrogen oxides (NO X ), sulfur dioxide (SO X ) Partitioned synchronous elimination operation. On the basis of setting a negative pressure fan in the negative pressure chamber, an auxiliary suction mechanism is set up, which can facilitate the use of the auxiliary suction mechanism in conjunction with the negative pressure fan to provide a greater negative pressure, thereby improving the suction force and meeting a variety of elimination conditions. The auxiliary suction mechanism is wind-driven to induce air, and the power air supply pipeline is passed through the outside of the negative chamber, which can facilitate the external connection of the high-pressure wind source in the workplace, and then the high-pressure wind source can be used to drive the action of the auxiliary suction mechanism.

[0021] The system has a compact structure and high integration. It can perform four-in-one treatment of nitrogen oxides, sulfides, carbon monoxide and dust in the flue gas flow, realize comprehensive purification and safe elimination of the flue gas flow, and fundamentally guarantee the safety of the working environment and the health of construction workers.

[0022] The present invention also provides a method for synchronously eliminating poisonous gases in smoke and wind flow in four-in-one partitions, which adopts a synchronously eliminating system for poisonous gases in smoke and wind flow in four-in-one partitions, and comprises the following steps:

[0023] Step 1: Installation and debugging of the elimination system;

[0024] S11: Assemble a multi-stage reverse airflow dust removal device, a toxic gas elimination device, a negative pressure suction device and a lifting support device to form a four-in-one zoned synchronous elimination system for smoke, wind and toxic gases;

[0025] S12: Perform airflow tightness test on the smoke, wind and toxic gas four-in-one partition synchronous elimination system to test whether the overall airtightness meets the required standard. After the required standard is met, execute S13. If the required standard is not met, perform airtight treatment until the required standard is met;

[0026] S13: placing the smoke, wind, and toxic gas four-in-one zone synchronous elimination system at a predetermined elimination position, and determining the horizontal height of the elimination section according to the cross-sectional dimensions in the working space, and then adjusting the multi-stage reverse airflow dust removal device, the toxic gas elimination device, and the negative pressure suction device to move synchronously to the height of the elimination section through the lifting support device;

[0027] Step 2: Synchronous elimination of toxic gases in smoke and wind flow by different zones;

[0028] S21: the controller controls the first regulating valve, the second regulating valve, the third regulating valve and the fourth regulating valve to be opened;

[0029] S22: During the movement of smoke and wind flow, the third gas concentration monitoring module is used to collect the third CO, third nitrogen oxide, third sulfide and third gas concentration signals in the upstream airflow in real time, and send them to the controller. The controller obtains the third CO, third nitrogen oxide, third sulfide and third gas concentration data according to the third CO, third nitrogen oxide, third sulfide and third gas concentration signals, and compares each concentration data with the corresponding start-up purification concentration threshold. When the third gas concentration data exceeds the limit, the alarm is controlled to sound and light alarm to remind the management personnel to take effective countermeasures in time. At the same time, when any one of the third CO, third nitrogen oxide and third sulfide concentration data exceeds the limit, the controller controls the negative pressure fan to start working to provide negative pressure for the elimination operation;

[0030] S23: using the first gas concentration monitoring module to collect the first CO, first nitrogen oxide, first sulfide and first gas concentration signals on the air inlet side of the airflow dust removal cabin in real time, and send them to the controller; the controller obtains the first CO, first nitrogen oxide, first sulfide and first gas concentration data according to the first CO, first nitrogen oxide, first sulfide and first gas concentration signals, and compares the first CO, first nitrogen oxide, first sulfide and first gas concentration data with the third CO, third nitrogen oxide, third sulfide and third gas concentration data respectively; when any one of the concentration data increases, the controller controls the solenoid valve to open, uses the external high-pressure wind source to drive the auxiliary suction mechanism to start working, and uses the auxiliary suction mechanism and the negative pressure fan to jointly provide a greater negative pressure for the elimination operation;

[0031] Under the action of negative pressure, the airflow passes through the airflow dust removal chamber, the gas elimination chamber and the negative pressure chamber in sequence to complete the elimination of toxic and harmful substances, and is discharged through the negative pressure fan;

[0032] In the airflow dust removal chamber, the flow equalizer is first used to change the velocity distribution and direction of the airflow, so that the gas flows more evenly to the first-stage dehumidification and dust filtering unit, and then the first-stage dehumidification and dust filtering unit is used to dehumidify and filter the airflow. Then, the second-stage and third-stage dust filtering units are used in sequence to continuously filter the airflow.

[0033] In the gas elimination chamber, the gas flow is sequentially subjected to CO, NO and sulphide elimination in three partitions: carbon monoxide elimination chamber, nitrogen oxide elimination chamber and sulphide elimination chamber. X 、SO XElimination treatment; first, in the carbon monoxide elimination chamber, the first regulating valve and the second regulating valve are used to cooperate to make the air flow flow from bottom to top through the first dehumidification layer, the second dehumidification layer, the third dehumidification layer, the first elimination layer, the second elimination layer and the third elimination layer in sequence, and the first dehumidification layer, the second dehumidification layer and the third dehumidification layer are used to successively dry the air flow, and the first elimination layer, the second elimination layer and the third elimination layer are used to successively perform CO elimination treatment on the air flow; secondly, in the nitrogen oxide elimination chamber, the second regulating valve and the third regulating valve are used to cooperate to make the air flow flow from top to bottom through the overall denitrification module. In this process, the staggered flow channels in the tree branch unit are used to make the air flow fully contact with a plurality of tree branch-shaped monomers and a plurality of transverse connectors, and a plurality of vents on the transverse baffle are used to reduce the air flow passing through the flow plate unit. The speed of the element is adjusted to promote the airflow to fully contact the surface of each horizontal baffle plate, and the plurality of air holes on the vertical plate are used to promote the airflow to generate convection between the plurality of vertical plates, so as to fully contact the surface of each vertical plate, and then the denitrification catalyst coating in the branch unit, the denitrification catalyst coating of the flow plate unit and the denitrification catalyst coating of the straight unit are used in sequence to continuously and efficiently denitrify the passing airflow; then, in the sulfide elimination chamber, the third regulating valve and the fourth regulating valve are used to cooperate to make the airflow flow from bottom to top through the overall desulfurization module. In this process, the plurality of convection holes on the vertical baffle plate are used to promote the airflow to convect between the plurality of vertical baffle plates, and fully contact the surface of each vertical baffle plate, and the desulfurization catalyst coating in the plurality of vertical baffle plates is used to continuously and efficiently desulfurize the passing airflow;

[0034] In the negative pressure chamber, the second gas concentration monitoring module is used to collect the third CO, second nitrogen oxide, second sulfide and second gas concentration signals in the negative pressure chamber in real time, and send them to the controller. The controller obtains the second CO, second nitrogen oxide, second sulfide and second gas concentration data according to the second CO, second nitrogen oxide, second sulfide and second gas concentration signals, and compares each concentration data with the corresponding purification standard concentration threshold. When the second gas concentration data exceeds the limit, the alarm is controlled to sound and light alarm to remind the management personnel to take effective countermeasures in time. At the same time, when any concentration data of the second CO, second nitrogen oxide and second sulfide concentration data exceeds the limit, the controller controls the first regulating valve, the second regulating valve, the third regulating valve and the fourth regulating valve to reduce the valve opening, controls the solenoid valve to close, and stops the auxiliary suction mechanism from working, so as to reduce the speed of the airflow passing through the carbon monoxide elimination chamber, the nitrogen oxide elimination chamber and the sulfide elimination chamber, so that CO, NO X 、SO X The elimination process is more complete, and the treated airflow is discharged to the outside of the elimination system through the outlet of the negative pressure fan;

[0035] After the above process continues for a set time, the smoke and wind flow toxic gas zone synchronous elimination operation is completed;

[0036] Step 3: Backflush cleaning and maintenance operations;

[0037] S31: Control the negative pressure fan to stop, control the solenoid valve to close, control the first regulating valve to close, control the second regulating valve to close, control the third regulating valve to close, and control the fourth regulating valve to close;

[0038] S32: Control the air pump to start working, use the air pump to introduce external airflow and spray it at high speed toward the third-stage dust filter unit through the nozzle, use the high-speed sprayed airflow to blow the particles attached to the third-stage dust filter unit, the second-stage dust filter unit and the first-stage dehumidification dust filter unit in the opposite direction, so that the attached particles are separated from the third-stage dust filter unit, the second-stage dust filter unit and the first-stage dehumidification dust filter unit, and then open the maintenance door 1 to remove the particles blown off in the airflow dust removal cabin;

[0039] At the same time, open the inspection door 2 to check the use of various components in the gas elimination cabin. When the desiccant in the first dehumidification layer, the second dehumidification layer and the third dehumidification layer reaches the saturated state, replace the corresponding desiccant. When the CO catalyst in the first elimination layer, the second elimination layer and the third elimination layer reaches the deactivated state, activate and regenerate the CO catalyst. When the denitrification catalyst coating in the overall denitrification module reaches the deactivated state, activate and regenerate the denitrification catalyst, or replace the overall denitrification module. When the desulfurization catalyst in the overall desulfurization module reaches the deactivated state, activate and regenerate the desulfurization catalyst, or replace the overall desulfurization module. Open the inspection door 3 to check the status of the negative pressure fan and the auxiliary suction mechanism in the negative pressure cabin. When there is an abnormal situation, perform maintenance.

[0040] After the above process continues for the set time two, the backflush cleaning and maintenance work is finished;

[0041] Step 4: Repeat steps 2 and 3 several times until the elimination of toxic gases in the smoke and wind flow is completed.

[0042] The present invention proposes a four-in-one zone synchronous elimination method for poisonous gases in smoke and wind flow, which can achieve the elimination of poisonous gases (CO, NO X 、SO X The efficient and simultaneous elimination of waste gas and dust particles has achieved the effect of four-in-one simultaneous disposal, effectively improved the working environment, ensured the life, health and safety of construction workers, and greatly improved the environmental protection benefits.

[0043] Specifically, compared with the prior art, the present invention has the following advantages:

[0044] 1. The present invention proposes a method for removing dust particles, CO and NO. X -except SO X The idea of ​​zoning and gradually treating the pollutants rationally removes various toxic gases in the mixed toxic smoke flow step by step, achieving the effect of four-in-one zoning treatment.

[0045] 2. The present invention adopts a combination of catalyst particles and catalyst coatings to design a main frame filled with CO catalyst, an integral denitrification module coated with a denitrification catalyst coating, and an integral desulfurization module coated with a desulfurization catalyst coating. At the same time, based on a multi-stage dust filter unit and a reverse airflow blowing mechanism, multi-stage high-efficiency dust removal, simultaneous poisoning treatment, and dust cleaning operations are jointly realized.

[0046] 3. The present invention uses a controller to connect the first, second and third gas concentration monitoring modules to achieve the elimination of CO and NO in the tunnel system. X 、SO X Multi-level monitoring of concentration and multiple gas parameters; then using the controller to connect the first regulating valve, the second regulating valve, the third regulating valve, the fourth regulating valve, the reverse airflow blowing mechanism, the auxiliary suction mechanism, and the negative pressure fan, it automatically realizes the coordinated operation of multi-level reverse airflow dust removal, toxic gas elimination, and negative pressure suction, ensuring the elimination effect and safety of the elimination system while realizing automated control of the elimination process. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the structure of the elimination system part in the present invention;

[0048] Figure 2 It is a schematic diagram of the structure of the poisonous gas elimination device in the present invention;

[0049] Figure 3 It is a structural schematic diagram of the primary dehumidification and dust filtering unit in the present invention;

[0050] Figure 4 It is a structural schematic diagram of the secondary dust filter unit in the present invention;

[0051] Figure 5 It is a schematic diagram of the structure of the three-stage dust filtering unit in the present invention;

[0052] Figure 6 It is a structural schematic diagram of the reverse airflow blowing mechanism in the present invention;

[0053] Figure 7 It is a structural schematic diagram of the main frame of the present invention;

[0054] Figure 8 is a front view of the overall denitrification module of the present invention;

[0055] Fig. 9 is a side view of the overall denitrification module of the present invention;

[0056] Fig.10 It is a structural schematic diagram of the vertical baffle in the present invention;

[0057] Fig.11 It is a structural schematic diagram of the flow plate unit of the present invention;

[0058] Fig.12 It is a structural schematic diagram of the flat unit in the present invention;

[0059] Fig.13 It is a schematic diagram of the structure of the transverse positioning plate one, two or three in the present invention;

[0060] Fig.14 It is a schematic diagram of the cross-sectional structure of the negative pressure cabin in the present invention;

[0061] Fig.15 It is a schematic diagram of the on-site installation operation of the four-in-one zone synchronous elimination system for poisonous gases in smoke and wind flow of the present invention;

[0062] Fig.16 It is a flow chart of the elimination method part in the present invention.

[0063] In the figure: 1. Multi-stage reverse airflow dust removal device, 2. Toxic gas elimination device, 3. Negative pressure suction device, 4. Lifting support device, 5. Airflow dust removal cabin, 6. First gas concentration monitoring module, 7. Flow equalizing plate, 8. First stage dehumidification dust filter unit, 9. Second stage dust filter unit, 10. Third stage dust filter unit, 11. Reverse airflow blowing mechanism, 12. Gas elimination cabin, 13. End left partition, 14. Middle left partition, 15. Middle right partition, 16. End right partition , 17. Carbon monoxide elimination chamber, 18. Nitrogen oxide elimination chamber, 19. Sulfide elimination chamber, 20. First regulating valve, 21. Second regulating valve, 22. Third regulating valve, 23. Fourth regulating valve, 24. First dehumidification layer, 25. Second dehumidification layer, 26. Third dehumidification layer, 27. First elimination layer, 28. Second elimination layer, 29. Third elimination layer, 30. Overall denitrification module, 31. Overall desulfurization module, 32. Negative pressure cabin, 33 , negative pressure fan, 34, auxiliary suction mechanism, 35, induced air pipeline, 36, exhaust pipeline, 37, power air supply pipeline, 38, second gas concentration monitoring module, 39, upper support platform, 40, lower support platform, 41, lifting hydraulic cylinder, 42, buffer connector, 43, electromagnetic reversing valve group, 44, metal grid frame, 45, wire mesh gas-liquid separator, 46, wire mesh dust collector, 47, air pump, 48, air duct, 49, nozzle, 50, tree-branched monomer , 51. Horizontal baffle, 52. Vertical flat plate, 53. Horizontal connector 1, 54. Vertical connector, 55. Horizontal connector 2, 56. Main frame, 57. Square frame, 58. Hard mesh, 59. Vertical baffle, 60. Vertical positioning plate 1, 61. Horizontal positioning plate 1, 62. Horizontal positioning plate 2, 63. Horizontal positioning plate 3, 64. Mounting bracket, 65. Connecting bracket, 66. Strip positioning block, 67. Third gas concentration monitoring module. DETAILED DESCRIPTION

[0064] The present invention will be further described below in conjunction with the accompanying drawings.

[0065] like Figures 1 to 15 As shown, the present invention provides a four-in-one zone synchronous elimination system for smoke and wind flow poisonous gases, including a multi-stage reverse airflow dust removal device 1, a poisonous gas elimination device 2 and a negative pressure suction device 3;

[0066] The multi-stage reverse airflow dust removal device 1, the poisonous gas elimination device 2 and the negative pressure suction device 3 are sequentially connected in the transverse direction;

[0067] The multi-stage reverse airflow dust removal device 1 includes an airflow dust removal cabin 5, a first gas concentration monitoring module 6, a flow equalizing plate 7, a first-level dehumidification dust filter unit 8, a second-level dust filter unit 9, a third-level dust filter unit 10, and a reverse airflow blowing mechanism 11; the airflow dust removal cabin 5 is a cylindrical structure with openings at both ends, and a transverse airflow dust removal channel is formed inside it; as a further preferred embodiment, the airflow dust removal cabin 5 is a square cylinder, wherein the inlet and outlet ends of the airflow dust removal channel are both circular; the exterior of the airflow dust removal cabin 5 is made of corrosion-resistant and impact-resistant metal material, and its thickness is preferably 2 to 4 mm; the first gas concentration monitoring module 6, the flow equalizing plate 7, the first-level dehumidification dust filter unit 8, the second-level dust filter unit 9, the third-level dust filter unit 10, and the reverse airflow blowing mechanism 11 are installed in the interior of the airflow dust removal cabin 5 in sequence from left to right.

[0068] As a preferred embodiment, the outer contour of the flow equalizer plate 7 is rectangular, and its thickness is preferably 3 to 5 cm, and there is an air flow channel inside it; the flow equalizer plate 7 is made of flame-retardant material;

[0069] As a preferred embodiment, a plurality of pairs of vertical positioning plates 60 are installed inside the airflow dust removal cabin 5 on the left and right sides of the corresponding first-level dehumidification and dust filter unit 8, the left and right sides of the second-level dust filter unit 9, and the left and right sides of the third-level dust filter unit 10, and the plurality of pairs of vertical positioning plates 60 are fixedly connected to the inner wall of the airflow dust removal cabin 5; the first-level dehumidification and dust filter unit 8, the second-level dust filter unit 9 and the third-level dust filter unit 10 are positioned respectively through the cooperation of the plurality of pairs of vertical positioning plates 60, and at the same time, the insertion installation operation of the first-level dehumidification and dust filter unit 8, the second-level dust filter unit 9 and the third-level dust filter unit 10 is facilitated.

[0070] Preferably, the thickness of the primary dehumidification dust filter unit 8 is 15 to 30 cm, the thickness of the secondary dust filter unit 9 is 5 to 10 cm, the thickness of the tertiary dust filter unit 10 is 10 to 20 cm, and the distance between two adjacent units is 4 to 6 cm.

[0071] The first gas concentration monitoring module 6 is located at the center of the airflow dust removal channel, and includes a first CO detection module, a first nitrogen oxide detection module, a first sulfide detection module and a first gas sensor, which are respectively used to detect the first CO, the first nitrogen oxide, the first sulfide and the first gas concentration signals; the first-level dehumidification and dust filtering unit 8 is used to perform dehumidification and dust filtering on the passing airflow; the second-level dust filtering unit 9 and the third-level dust filtering unit 10 are both used to perform dust filtering on the passing airflow; the reverse airflow blowing mechanism 11 is used to provide reverse cleaning airflow, and the number of the reverse airflow blowing mechanism 11 is two, and they are respectively installed on the top and bottom of the airflow dust removal cabin 5;

[0072] The poisonous gas elimination device 2 includes a gas elimination cabin 12, an end left baffle 13, a middle left baffle 14, a middle right baffle 15, an end right baffle 16, a first regulating valve 20, a second regulating valve 21, a third regulating valve 22, a fourth regulating valve 23, a first dehumidification layer 24, a second dehumidification layer 25, a third dehumidification layer 26, a first elimination layer 27, a second elimination layer 28, a third elimination layer 29, an overall denitrification module 30, and an overall desulfurization module 31; the gas elimination cabin 12 is a cylindrical structure with openings at both ends, and a transverse gas elimination channel is formed inside; the left end of the gas elimination cabin 12 is fixedly connected to the right end of the airflow dust removal cabin 5 by a first connecting flange, and preferably, a Flame retardant sealing gasket; the end left partition 13, the middle left partition 14, the middle right partition 15 and the end right partition 16 are fixedly installed in the gas elimination cabin 12 in sequence from left to right, and the end left partition 13 and the end right partition 16 are respectively located at the left and right ends of the gas elimination cabin 12. At the same time, the four partitions separate the gas elimination channel from left to right into a carbon monoxide elimination chamber 17, a nitrogen oxide elimination chamber 18 and a sulfide elimination chamber 19; the first regulating valve 20 is installed in the reserved installation hole at the bottom of the end left partition 13; the second regulating valve 21 is installed in the reserved installation hole at the top of the middle left partition 14; the third regulating valve 22 is installed in the reserved installation hole at the bottom of the middle right partition 15 The fourth regulating valve 23 is installed in the reserved installation hole on the upper part of the right partition 16 at the end; the first dehumidification layer 24, the second dehumidification layer 25, the third dehumidification layer 26, the first elimination layer 27, the second elimination layer 28 and the third elimination layer 29 are all composed of a main frame 56 and a filler filled in the main frame 56; the first dehumidification layer 24, the second dehumidification layer 25, the third dehumidification layer 26, the first elimination layer 27, the second elimination layer 28 and the third elimination layer 29 have pores or flow channels for air flow to pass through, and are installed in the carbon monoxide elimination chamber 17 from bottom to top in sequence; the fillers in the first dehumidification layer 24, the second dehumidification layer 25 and the third dehumidification layer 26 are all dry Desiccant, used for dehumidifying the airflow; the fillers in the first elimination layer 27, the second elimination layer 28 and the third elimination layer 29 are all CO catalysts, used for eliminating CO in the airflow; the interior of the integral denitrification module 30 has pores or flow channels for airflow to pass through, and its surface is coated with a denitrification catalyst coating. The integral denitrification module 30 is installed in the middle of the nitrogen oxide elimination chamber 18, and is used for eliminating nitrogen oxides in the airflow; the interior of the integral desulfurization module 31 has pores or flow channels for airflow to pass through, and its surface is coated with a desulfurization catalyst coating. The integral desulfurization module 31 is installed in the middle of the sulfide elimination chamber 19, and is used for eliminating sulfur dioxide in the airflow;

[0073] Among them, the first regulating valve 20 is used to open or close the connecting passage between the carbon monoxide elimination chamber 17 and the outlet end of the airflow dust removal passage in the airflow dust removal chamber; the second regulating valve 21 is used to open or close the connecting passage between the carbon monoxide elimination chamber 17 and the nitrogen oxide elimination chamber 18; the third regulating valve 22 is used to open or close the connecting passage between the nitrogen oxide elimination chamber 18 and the sulfide elimination chamber 19; the fourth regulating valve 23 is used to open or close the connecting passage between the sulfide elimination chamber 19 and the negative pressure chamber of the negative pressure chamber 32; through the coordinated setting of the first regulating valve 20 and the second regulating valve 21, the inlet end of the airflow in the carbon monoxide elimination chamber 17 can be located at the lower left part, the outlet end of the airflow can be located at the upper right part, and the direction of the airflow is from bottom to top. Through the coordinated setting of the second regulating valve 21 and the third regulating valve 22, the inlet end of the airflow in the nitrogen oxide elimination chamber 18 can be located at the upper left part, the outlet end of the airflow can be located at the lower right part, and the direction of the airflow can be from top to bottom. By cooperating with the third regulating valve 22 and the fourth regulating valve 23, the inlet end of the airflow in the sulfide elimination chamber 19 can be located at the lower left part, the outlet end of the airflow is located at the upper right part, and the direction of the airflow is from bottom to top.

[0074] As a preferred embodiment, two pairs of lateral positioning plates 61 are installed inside the carbon monoxide elimination chamber 17 corresponding to the upper and lower sides of the first dehumidification layer 24, the upper and lower sides of the second dehumidification layer 25, the upper and lower sides of the third dehumidification layer 26, the upper and lower sides of the first elimination layer 27, the upper and lower sides of the second elimination layer 28 and the upper and lower sides of the third elimination layer 29. The two pairs of lateral positioning plates 61 are fixedly connected to the end left partition 13 and the middle left partition 14 relative to each other; the first dehumidification layer 24, the second dehumidification layer 25, the third dehumidification layer 26, the first elimination layer 27, the second elimination layer 28 and the third elimination layer 29 are positioned respectively through the cooperation of the two pairs of lateral positioning plates 61, and at the same time, the parallel insertion installation operation of the first dehumidification layer 24, the second dehumidification layer 25, the third dehumidification layer 26, the first elimination layer 27, the second elimination layer 28 and the third elimination layer 29 is facilitated.

[0075] As a preferred embodiment, the interior of the nitrogen oxide elimination chamber 18 is provided with a plurality of pairs of transverse positioning plates 62 for positioning the overall denitrification module 30, and the plurality of pairs of transverse positioning plates 62 are fixedly mounted on the middle section left partition plate 14 and the middle section right partition plate 15 opposite to each other;

[0076] As a preferred embodiment, the interior of the sulfide elimination chamber 19 is provided with a plurality of pairs of transverse positioning plates 63 for positioning the overall desulfurization module 31, and the plurality of pairs of transverse positioning plates 63 are fixedly mounted on the middle right partition 15 and the end right partition 16 opposite to each other;

[0077] As a preferred embodiment, a plurality of through holes are formed on the transverse positioning plate 1 61, the transverse positioning plate 2 62 and the transverse positioning plate 3 63.

[0078] The negative pressure suction device 3 includes a negative pressure cabin 32, a negative pressure fan 33, an auxiliary suction mechanism 34, an air induced air pipeline 35, an exhaust air pipeline 36, a power air supply pipeline 37, and a second gas concentration monitoring module 38; the negative pressure cabin 32 is an open structure at the left end and a closed structure at the right end, and a negative pressure chamber is formed inside; the left end of the negative pressure cabin 32 is fixedly connected to the right end of the gas elimination cabin 12 through a second connecting flange, and preferably, a flame retardant sealing pad is provided at the connection; the negative pressure fan 33 is installed At the bottom of the right part of the negative pressure chamber, its air inlet is located at the left end, and its air outlet passes through the outside of the right end of the negative pressure chamber 32; as a preferred embodiment, the negative pressure fan 33 is installed at the bottom of the negative pressure chamber through a mounting bracket 64; the auxiliary suction mechanism 34 is installed above the left part of the negative pressure chamber, and the auxiliary suction mechanism 34 is a wind-driven air-inducing device, which is vertically arranged, with the air inlet end located at the upper end and the air outlet end located at the lower side; as a preferred embodiment, the auxiliary suction mechanism 34 is fixed to the right partition plate 16 at the end through a mounting bracket 65 The air induced pipe 35 is a 90-degree elbow, and its air outlet end is connected to the air inlet end of the auxiliary suction mechanism 34, and its air inlet end extends to a position close to the fourth regulating valve 23; the exhaust pipe 36 is a 90-degree elbow, and its air inlet end is connected to the air outlet end of the auxiliary suction mechanism 34, and its air outlet end extends to a position close to the air inlet of the negative pressure fan 33; the power air supply pipe 37 is connected in series with a solenoid valve, and its air outlet end is connected to the power air supply port of the auxiliary suction mechanism 34, and its air inlet end passes through the outside of the negative pressure chamber 32 and is connected to an external high-pressure wind source; the second gas concentration monitoring module 38 is installed in the negative pressure chamber and is located between the auxiliary suction mechanism 34 and the negative pressure fan 33; the second gas concentration monitoring module 38 is located at the center of the airflow dust removal channel, and includes a second CO detection module, a second nitrogen oxide detection module, a second sulfide detection module and a second gas sensor, which are used to detect the second CO, the second nitrogen oxide, the second sulfide and the second gas concentration signals respectively.

[0079] In order to facilitate the change of the working height to adapt to different working conditions, it also includes a lifting support device 4, which is arranged below the gas elimination cabin 12. The lifting support device 4 includes an upper support platform 39, a lower support platform 40, a lifting hydraulic cylinder 41, a buffer connection 42 and an electromagnetic reversing valve group 43; the upper support platform 39 is horizontally arranged below the gas elimination cabin 12; the lower support platform 40 is horizontally arranged below the upper support platform 39 and is located on the ground of the workplace; four lifting hydraulic cylinders 41 are distributed in a rectangular manner on the upper support platform 39. The upper supporting platform 39 and the lower supporting platform 40 have their piston rod ends fixedly connected to the lower end surface of the upper supporting platform 39, and their cylinder bottom ends fixedly connected to the upper end surface of the lower supporting platform 40; four buffer connectors 42 are distributed in a rectangular shape between the gas elimination cabin 12 and the upper supporting platform 39, and their upper ends are fixedly connected to the lower end of the gas elimination cabin 12, and their lower ends are fixedly connected to the upper end of the lower supporting platform 40; the electromagnetic reversing valve group 43 is installed on the lower supporting platform 40, and its working oil ports are respectively connected to the four lifting hydraulic cylinders 41, and its oil inlet is connected to the hydraulic oil source.

[0080] As a preference, the rear side of the airflow dust removal cabin 5 is provided with an inspection door 1, the rear side of the gas elimination cabin 12 is provided with an inspection door 2, and the rear side of the negative pressure cabin 32 is provided with an inspection door 3, so that each cabin can be easily opened from the rear side to facilitate maintenance and replacement of corresponding components.

[0081] The first-stage dehumidification and dust filtering unit 8 includes a metal grid frame 44, a wire mesh gas-liquid separator 45 and a wire mesh dust collector 46; the interior of the metal grid frame 44 has a plurality of installation channels that are connected laterally; a plurality of wire mesh gas-liquid separators 45 are correspondingly installed on the left side of a plurality of installation channels, preferably by welding; a plurality of wire mesh dust collectors 46 are correspondingly installed on the right side of a plurality of installation channels, preferably by welding; as a further preference, the wire meshes in the wire mesh gas-liquid separator 45 and the wire mesh dust collector 46 are both made of stainless steel, and the diameter of the wire mesh is 0.1 to 0.3 mm. At the same time, the thickness of the wire mesh gas-liquid separator 4 is preferably 5 to 10 cm, and the thickness of the wire mesh dust collector 46 is preferably 10 to 20 cm. The specific thickness is selected to match the thickness of the first-stage dehumidification and dust filtering unit 8;

[0082] The secondary dust filter unit 9 is a coarse plate filter. Preferably, the outer frame of the coarse plate filter is a stainless steel frame, and the internal filter material is a coarse filter material, preferably a coarse filter material selected from polyester fiber, polyamide fiber, and activated carbon fiber; the metal parts in the coarse plate filter are treated by spraying or galvanizing;

[0083] The three-stage dust filter unit 10 is a flame-retardant ultrafine filter material high efficiency filter, wherein the ultrafine filter material is mainly ultrafine glass fiber, and the fiber filter material is bent and shaped therein.

[0084] In order to facilitate efficient purging operations, the reverse airflow blowing mechanism 11 includes an air pump 47, an air duct 48 and a nozzle 49; the air pump 47 is installed on the outer wall of the gas elimination cabin 12, and a filtering device is installed at its inlet end to ensure that the airflow entering the gas elimination cabin 12 is an airflow without particles; the inlet end of the air duct 48 is connected to the outlet end of the air pump 47, and its inlet end penetrates into the interior of the gas elimination cabin 12; the nozzle 49 is fixedly supported inside the gas elimination cabin 12, and its nozzle is oriented toward the direction of the three-stage dust filter unit 10, and its inlet end is connected to the outlet end of the air duct 48. As a further preferred embodiment, the angle between the axis of the nozzle 49 and the horizontal plane is 30 to 60 degrees, so that the reverse airflow blowing mechanism 11 can be used to achieve the backblowing of the airflow, thereby achieving efficient cleaning of the dust in the dust filter unit.

[0085] As a preferred embodiment, the thickness of the first dehumidification layer 24, the second dehumidification layer 25 and the third dehumidification layer 26 are all 3 to 5 cm; the desiccant contained in the first dehumidification layer 24, the second dehumidification layer 25 and the third dehumidification layer 26 are all one of silicon dioxide, aluminum silicate and calcium chloride, and the particle size of the desiccant in the first dehumidification layer 24 is 5 to 8 mm, the particle size of the desiccant in the second dehumidification layer 25 is 3 to 5 mm, and the particle size of the desiccant in the third dehumidification layer 26 is 1 to 3 mm; the thickness of the first elimination layer 27, the second elimination layer 28 and the third elimination layer 29 are all 3 to 5 cm, and the interval between two adjacent layers is 1 to 2 cm; the CO catalyst contained in the first elimination layer 27, the second elimination layer 28 and the third elimination layer 29 is prepared by a hydrothermal method or a coprecipitation method. As a preferred embodiment, the CO catalyst is prepared by a transition metal oxide or a plurality of composite metal oxides such as copper, manganese, cobalt, etc. by a hydrothermal method or a coprecipitation method. The particle size of the CO catalyst in the first elimination layer 27 and the second elimination layer 28 is 4 to 6 mm, and the particle size of the CO catalyst in the third elimination layer 29 is 2 to 4 mm. The thickness of the first elimination layer 27, the second elimination layer 28 and the third elimination layer 29 is 3 to 5 cm, and the interval between two adjacent layers is 1 to 2 cm.

[0086] As a preferred embodiment, the overall denitrification module 30 is composed of a tree-branch unit, a flow plate unit and a straight unit from top to bottom;

[0087] The dendrite-shaped unit comprises a plurality of uniformly distributed dendrite-shaped monomers 50 and a plurality of transverse connectors 53, wherein the plurality of dendrite-shaped monomers 50 are staggered and connected to each other through a plurality of transverse connectors 53; the surfaces of the dendrite-shaped monomers 50 and the transverse connectors 53 are coated with a denitrification catalyst coating, and a staggered flow channel is formed in the dendrite-shaped unit;

[0088] The flow plate unit includes a plurality of transverse baffles 51 and a plurality of vertical connectors 54. The plurality of transverse baffles 51 are vertically spaced apart, and two adjacent transverse baffles 51 are fixedly connected by a plurality of vertical connectors 54. A plurality of vents are provided on the surface of each transverse baffle 51, and the surfaces of the transverse baffles 51 and the vertical connectors 54 are coated with a denitrification catalyst coating. Preferably, the number of the transverse baffles 51 is 2 to 4.

[0089] The flat unit includes a plurality of vertical plates 52 and a plurality of transverse connectors 55. The plurality of vertical plates 52 are arranged in a transversely spaced manner, and two adjacent vertical plates 52 are connected by a plurality of transverse connectors 55. Each vertical plate 52 is provided with a plurality of air holes all over the surface, and the surfaces of the vertical plates 52 and the transverse connectors 55 are coated with a denitrification catalyst coating. The provision of the air holes can increase the corresponding effect of the airflow, which is conducive to improving the denitrification effect and efficiency.

[0090] As a further preferred embodiment, a plurality of strip-shaped positioning blocks 66 are fixedly connected to the outer sides of the left end and the right end of the integral denitrification module 30, and the plurality of strip-shaped positioning blocks 66 are positioned and matched with a plurality of pairs of transverse positioning plates 62;

[0091] As a further preference, the denitrification catalyst is composed of titanium dioxide and one or more metal oxides of vanadium, calcium, copper, manganese, etc., and a denitrification catalyst coating is formed by one of the methods of impregnation and spraying, thereby achieving the effect of efficient denitrification.

[0092] As a preferred embodiment, the integrated desulfurization module 31 includes a plurality of vertical baffles 59 distributed in sequence and at intervals, each of which has a plurality of convection holes formed all over its surface, and its surface is coated with a desulfurization catalyst coating. During installation, the plurality of vertical baffles 59 are positioned and matched by a plurality of pairs of transverse positioning plates 63. Preferably, the distance between adjacent vertical baffles 59 is 8 to 15 mm;

[0093] As a preferred embodiment, the desulfurization catalyst is composed of titanium dioxide and one or more metal oxides of copper, zinc, iron, etc. or precious metals such as platinum, palladium, rhodium, etc., and then a desulfurization catalyst coating is formed by an impregnation method or a spraying method to achieve the desulfurization effect;

[0094] As a preference, the main frame 56 is a flat box structure, which includes a square frame 57 and a hard mesh 58 , and two hard meshes 58 are encapsulated at two open ends of the square frame 57 .

[0095] In order to facilitate the realization of fully automated control, it also includes a third gas concentration monitoring module 67, an alarm and a controller; the third gas concentration monitoring module 67 is arranged in front of the airflow dust removal cabin 5, and the third gas concentration monitoring module 67 includes a third CO detection module, a third nitrogen oxide detection module, a third sulfide detection module and a first gas sensor, which are respectively used to detect the third CO, third nitrogen oxide, third sulfide and third gas concentration signals; the alarm is installed on the outside of the negative pressure cabin 32 for performing warning actions; the controller is installed in the monitoring center, and is respectively connected to the solenoid valve, the first gas concentration monitoring module 6, the second gas concentration monitoring module 38, the reverse airflow blowing mechanism 11, the first regulating valve 20, the second regulating valve 21, the third regulating valve 22, the fourth regulating valve 23, the negative pressure fan 33 and the auxiliary suction mechanism 34.

[0096] In the present invention, a first gas concentration monitoring module is arranged on the air inlet side of the airflow dust removal chamber, so that the CO, nitrogen oxides, sulfides and gas concentration data on the air inlet side can be obtained in real time, and the elimination operation process can be adjusted according to the concentration of different gases. By setting the equalizing plate, it is convenient to carry out equal flow treatment on the gas; a first-level dehumidification dust filter unit, a second-level dust filter unit and a third-level dust filter unit are arranged in sequence on the downstream side of the equalizing plate, and a first-level dehumidification and a third-level dust filter treatment can be carried out. Through the dehumidification treatment, the probability of particle adhesion can be effectively reduced. Through the multi-stage dust filter treatment, particles can be prevented from entering the gas elimination chamber, and the situation that particles block the dehumidification layer, the elimination layer, the overall denitrification module and the overall desulfurization module will not occur, which is conducive to ensuring the subsequent elimination effect and efficiency of the toxic gas. By setting a reverse airflow blowing mechanism on the rear side of the third-level dust filter unit, the particles attached to the first-level dehumidification dust filter unit, the second-level dust filter unit and the third-level dust filter unit can be blown off by reflecting the clean airflow, so that the reuse process of each level of units can be realized. The gas elimination channel is separated into a carbon monoxide elimination chamber, a nitrogen oxide elimination chamber and a sulfide elimination chamber by using an end left partition, a middle left partition, a middle right partition and an end right partition, and a first regulating valve is installed at the lower part of the end left partition, a second regulating valve is installed at the upper part of the middle left partition, a third regulating valve is installed at the lower part of the middle right partition, and a fourth regulating valve is installed at the upper part of the end right partition. The airflow passing through the carbon monoxide elimination chamber can be made to flow from bottom to top, the airflow passing through the nitrogen oxide elimination chamber can be made to flow from top to bottom, and the airflow passing through the sulfide elimination chamber can be made to flow from bottom to top, thereby effectively extending the passage time of the airflow in each chamber, and in combination with the elimination layer, denitrification module and desulfurization module in each chamber, it is possible to achieve the removal of carbon monoxide (CO) and nitrogen oxides (NO X ), sulfur dioxide (SO X ) for elimination, and with the multi-stage dust filter unit in the airflow dust removal cabin, dust particles, carbon monoxide (CO), nitrogen oxides (NO X ), sulfur dioxide (SO X ) Partitioned synchronous elimination operation. On the basis of setting a negative pressure fan in the negative pressure chamber, an auxiliary suction mechanism is set up, which can facilitate the use of the auxiliary suction mechanism in conjunction with the negative pressure fan to provide a greater negative pressure, thereby improving the suction force and meeting a variety of elimination conditions. The auxiliary suction mechanism is wind-driven to induce air, and the power air supply pipeline is passed through the outside of the negative chamber, which can facilitate the external connection of the high-pressure wind source in the workplace, and then the high-pressure wind source can be used to drive the action of the auxiliary suction mechanism.

[0097] The system has a compact structure and high integration. It can perform four-in-one treatment of nitrogen oxides, sulfides, carbon monoxide and dust in the flue gas flow, realize comprehensive purification and safe elimination of the flue gas flow, and fundamentally guarantee the safety of the working environment and the health of construction workers.

[0098] like Fig.16 As shown, the present invention also provides a method for synchronously eliminating poisonous gases in smoke and wind flow in four-in-one partitions, which adopts a synchronously eliminating system for poisonous gases in smoke and wind flow in four-in-one partitions, including the following steps:

[0099] Step 1: Installation and debugging of the elimination system;

[0100] S11: Assemble the multi-stage reverse airflow dust removal device 1, the poisonous gas elimination device 2, the negative pressure suction device 3 and the lifting support device 4 to form a four-in-one zoned synchronous elimination system for smoke and air flow poisonous gases;

[0101] S12: Perform airflow tightness test on the smoke, wind and toxic gas four-in-one partition synchronous elimination system to test whether the overall airtightness meets the required standard. After the required standard is met, execute S13. If the required standard is not met, perform airtight treatment until the required standard is met;

[0102] S13: placing the smoke, wind, and toxic gas four-in-one zone synchronous elimination system at a predetermined elimination position, and determining the horizontal height of the elimination section according to the cross-sectional dimensions in the working space, and then adjusting the multi-stage reverse airflow dust removal device 1, the toxic gas elimination device 2, and the negative pressure suction device 3 to move synchronously to the height of the elimination section through the lifting support device 4;

[0103] Step 2: Synchronous elimination of toxic gases in smoke and wind flow by different zones;

[0104] S21: the controller controls the first regulating valve 20, the second regulating valve 21, the third regulating valve 22 and the fourth regulating valve 23 to be opened;

[0105] S22: During the movement of smoke and wind flow, the third gas concentration monitoring module 67 is used to collect the third CO, third nitrogen oxide, third sulfide and third gas concentration signals in the upstream airflow in real time, and send them to the controller. The controller obtains the third CO, third nitrogen oxide, third sulfide and third gas concentration data according to the third CO, third nitrogen oxide, third sulfide and third gas concentration signals, and compares each concentration data with the corresponding start-up purification concentration threshold. When the third gas concentration data exceeds the limit, the alarm is controlled to sound and light alarm to remind the management personnel to take effective countermeasures in time. At the same time, when any one of the third CO, third nitrogen oxide and third sulfide concentration data exceeds the limit, the controller controls the negative pressure fan 33 to start working to provide negative pressure for the elimination operation;

[0106] S23: using the first gas concentration monitoring module 6 to collect the first CO, first nitrogen oxide, first sulfide and first gas concentration signals on the air inlet side of the airflow dust removal chamber 5 in real time, and send them to the controller. The controller obtains the first CO, first nitrogen oxide, first sulfide and first gas concentration data according to the first CO, first nitrogen oxide, first sulfide and first gas concentration signals, and compares the first CO, first nitrogen oxide, first sulfide and first gas concentration data with the third CO, third nitrogen oxide, third sulfide and third gas concentration data respectively. When any one of the concentration data increases, it means that the airflow velocity is too slow, and a large amount of airflow accumulates on the air inlet side of the gas dust removal chamber 5. The controller controls the solenoid valve to open, uses the external high-pressure wind source to drive the auxiliary suction mechanism 34 to start working, and uses the auxiliary suction mechanism 34 and the negative pressure fan 33 to jointly provide a greater negative pressure for the elimination operation;

[0107] Under the action of negative pressure, the airflow passes through the airflow dust removal chamber 5, the gas elimination chamber 12 and the negative pressure chamber 32 in sequence, completes the elimination of toxic and harmful substances, and is discharged through the negative pressure fan 33;

[0108] In the airflow dust removal chamber 5, the velocity distribution and direction of the airflow are first changed by using the flow equalizer 7, so that the gas flows more evenly to the primary dehumidification and dust filtering unit 8, and then the primary dehumidification and dust filtering unit 8 is used to dehumidify and filter the airflow, and then the secondary dust filtering unit 9 and the tertiary dust filtering unit 10 are used in sequence to continuously filter the airflow;

[0109] In the gas elimination chamber 12, the gas flow is sequentially subjected to CO, NO and sulphide elimination in three partitions: the carbon monoxide elimination chamber 17, the nitrogen oxide elimination chamber 18 and the sulphide elimination chamber 19. X 、SO XElimination treatment: First, in the carbon monoxide elimination chamber 17, the first regulating valve 20 and the second regulating valve 21 cooperate to make the air flow flow from bottom to top through the first dehumidification layer 24, the second dehumidification layer 25, the third dehumidification layer 26, the first elimination layer 27, the second elimination layer 28 and the third elimination layer 29 in turn, and the first dehumidification layer 24, the second dehumidification layer 25, and the third dehumidification layer 26 are used to successively dry the air flow, and the first elimination layer 27, the second elimination layer 28 and the third elimination layer 29 are used to successively perform CO elimination treatment on the air flow; Secondly, in the nitrogen oxide elimination chamber 18, the second regulating valve 21 and the third regulating valve 22 cooperate to make the air flow flow from top to bottom through the overall denitrification module 30. In this process, the staggered flow channels in the tree branch unit are used to make the air flow fully contact with a plurality of tree branch-shaped monomers 50 and a plurality of transverse connectors 53, and the plurality of ventilations on the transverse baffles 51 are used. The holes reduce the speed of the airflow through the flow plate unit, so that the airflow is fully in contact with the surface of each horizontal baffle plate 51, and the plurality of air holes on the vertical plate 52 are used to promote the airflow to generate convection between the plurality of vertical plates 52, so as to fully contact the surface of each vertical plate 52, and then the denitrification catalyst coating in the branch unit, the denitrification catalyst coating of the flow plate unit and the denitrification catalyst coating of the straight unit are used in sequence to continuously and efficiently denitrify the passing airflow; then, in the sulfide elimination chamber 19, the third regulating valve 22 and the fourth regulating valve 23 are used to cooperate to make the airflow flow from bottom to top through the overall desulfurization module 31. In this process, the plurality of convection holes on the vertical baffle plate 59 are used to promote the airflow to convect between the plurality of vertical baffle plates 59, and fully contact the surface of each vertical baffle plate 59, and the desulfurization catalyst coating in the plurality of vertical baffle plates 59 is used to continuously and efficiently desulfurize the passing airflow;

[0110] In the negative pressure chamber 32, the second gas concentration monitoring module 38 is used to collect the third CO, second nitrogen oxide, second sulfide and second gas concentration signals in the negative pressure chamber in real time, and send them to the controller. The controller obtains the second CO, second nitrogen oxide, second sulfide and second gas concentration data according to the second CO, second nitrogen oxide, second sulfide and second gas concentration signals, and compares each concentration data with the corresponding purification standard concentration threshold. When the second gas concentration data exceeds the limit, the alarm is controlled to sound and light alarm to remind the management personnel to take effective countermeasures in time. At the same time, when any concentration data of the second CO, second nitrogen oxide and second sulfide concentration data exceeds the limit, the controller controls the first regulating valve 20, the second regulating valve 21, the third regulating valve 22 and the fourth regulating valve 23 to reduce the valve opening, controls the solenoid valve to close, and stops the auxiliary suction mechanism 34 from working, so as to reduce the speed of the airflow passing through the carbon monoxide elimination chamber 17, the nitrogen oxide elimination chamber 18 and the sulfide elimination chamber 19, so that CO, NOX 、SO X The elimination process is more complete, and the airflow after elimination is discharged to the outside of the elimination system through the air outlet of the negative pressure fan 33;

[0111] After the above process continues for a set time, the smoke and wind flow toxic gas zone synchronous elimination operation is completed;

[0112] Step 3: Backflush cleaning and maintenance operations;

[0113] S31: Control the negative pressure fan 33 to stop, control the solenoid valve to close, control the first regulating valve 20 to close, control the second regulating valve 21 to close, control the third regulating valve 22 to close, and control the fourth regulating valve 23 to close;

[0114] S32: Control the air pump 47 to start working, use the air pump 47 to introduce external airflow and spray it at high speed toward the third-stage dust filter unit 10 through the nozzle 49, use the high-speed airflow to blow the particles attached to the third-stage dust filter unit 10, the second-stage dust filter unit 9 and the first-stage dehumidification dust filter unit 8 in the opposite direction, so that the attached particles are separated from the third-stage dust filter unit 10, the second-stage dust filter unit 9 and the first-stage dehumidification dust filter unit 8, and then open the maintenance door 1 to remove the particles blown off in the airflow dust removal cabin 5;

[0115] At the same time, open the inspection door 2 to check the use of various components in the gas elimination cabin 12. When the desiccant in the first dehumidification layer 24, the second dehumidification layer 25 and the third dehumidification layer 26 reaches the saturated state, replace the corresponding desiccant. When the CO catalyst in the first elimination layer 27, the second elimination layer 28 and the third elimination layer 29 reaches the deactivated state, activate and regenerate the CO catalyst. When the denitrification catalyst coating in the overall denitrification module 30 reaches the deactivated state, activate and regenerate the denitrification catalyst, or replace the overall denitrification module 30. When the desulfurization catalyst in the overall desulfurization module 31 reaches the deactivated state, activate and regenerate the desulfurization catalyst, or replace the overall desulfurization module 31. Open the inspection door 3 to detect the status of the negative pressure fan 33 and the auxiliary suction mechanism 34 in the negative pressure cabin 32. When there is an abnormal situation, perform maintenance.

[0116] After the above process continues for the set time two, the backflush cleaning and maintenance work is finished;

[0117] Step 4: Repeat steps 2 and 3 several times until the elimination of toxic gases in the smoke and wind flow is completed.

[0118] The present invention proposes a four-in-one zone synchronous elimination method for poisonous gases in smoke and wind flow, which can achieve the elimination of poisonous gases (CO, NO X 、SO XThe efficient and simultaneous elimination of waste gas and dust particles has achieved the effect of four-in-one simultaneous disposal, effectively improved the working environment, ensured the life, health and safety of construction workers, and greatly improved the environmental protection benefits.

Claims

1. A four-in-one zone synchronous elimination system for smoke and wind flow poisonous gases, comprising a multi-stage reverse airflow dust removal device (1), a poisonous gas elimination device (2) and a negative pressure suction device (3), characterized in that ； The multi-stage reverse airflow dust removal device (1), the poisonous gas elimination device (2) and the negative pressure suction device (3) are sequentially connected in a transverse direction; The multi-stage reverse airflow dust removal device (1) comprises an airflow dust removal chamber (5), a first gas concentration monitoring module (6), a flow equalizing plate (7), a first-stage dehumidification dust filter unit (8), a second-stage dust filter unit (9), a third-stage dust filter unit (10), and a reverse airflow blowing mechanism (11); the airflow dust removal chamber (5) is a cylindrical structure with openings at both ends, and a transverse airflow dust removal channel is formed inside the chamber; the first gas concentration monitoring module (6), the flow equalizing plate (7), the first-stage dehumidification dust filter unit (8), the second-stage dust filter unit (9), the third-stage dust filter unit (10), and the reverse airflow blowing mechanism (11) are sequentially installed from left to right in the interior of the airflow dust removal chamber (5) at intervals; The first gas concentration monitoring module (6) is located at the center of the airflow dust removal channel, and comprises a first CO detection module, a first nitrogen oxide detection module, a first sulfide detection module and a first gas sensor, which are respectively used to detect the first CO, first nitrogen oxide, first sulfide and first gas concentration signals; the first-level dehumidification and dust filtering unit (8) is used to perform dehumidification and dust filtering on the passing airflow; the second-level dust filtering unit (9) and the third-level dust filtering unit (10) are both used to perform dust filtering on the passing airflow; the reverse airflow blowing mechanism (11) is used to provide reverse cleaning airflow, and the number of the reverse airflow blowing mechanism (11) is two and they are respectively installed at the top and bottom of the airflow dust removal cabin (5); The poisonous gas elimination device (2) comprises a gas elimination cabin (12), an end left baffle (13), a middle left baffle (14), a middle right baffle (15), an end right baffle (16), a first regulating valve (20), a second regulating valve (21), a third regulating valve (22), a fourth regulating valve (23), a first dehumidification layer (24), a second dehumidification layer (25), a third dehumidification layer (26), a first elimination layer (27), a second elimination layer (28), a third elimination layer (29), an overall denitrification module (30), and an overall desulfurization module (31); the gas elimination cabin (12) is a cylindrical structure with openings at both ends, and a transverse gas elimination channel is formed inside the gas elimination cabin; the left end of the gas elimination cabin (12) is connected to the gas flow elimination module (31). The right ends of the dust chamber (5) are fixedly connected by a first connecting flange; the end left partition (13), the middle left partition (14), the middle right partition (15) and the end right partition (16) are fixedly installed in the interior of the gas elimination chamber (12) in sequence from left to right, and the end left partition (13) and the end right partition (16) are respectively located at the left end and the right end of the gas elimination chamber (12), and at the same time, the four partitions separate the gas elimination channel from left to right into a carbon monoxide elimination chamber (17), a nitrogen oxide elimination chamber (18) and a sulfide elimination chamber (19); the first regulating valve (20) is installed in a reserved installation hole at the bottom of the end left partition (13); the second regulating valve (21) is installed in the middle The first dehumidification layer (24), the second dehumidification layer (25), the third dehumidification layer (26), the first elimination layer (27), the second elimination layer (28) and the third elimination layer (29) are all composed of a main frame (56) and a filler filled in the main frame (56); the first dehumidification layer (24), the second dehumidification layer (25), the third dehumidification layer (26), the first elimination layer (27), the second elimination layer (28) and the third elimination layer (29) are all provided with a filling agent. The first dehumidification layer (24), the second dehumidification layer (25) and the third dehumidification layer (26) are filled with desiccants for dehumidifying the airflow; the first dehumidification layer (27), the second dehumidification layer (28) and the third dehumidification layer (29) are filled with CO catalysts for removing CO from the airflow; the interior of the integral denitrification module (30) is provided with pores or flow channels for airflow to pass through, and the surface of the integral denitrification module (30) is coated with a denitrification catalyst coating; the integral denitrification module (30) is installed in the middle of the nitrogen oxide elimination chamber (18) for removing nitrogen oxides from the airflow;The interior of the integral desulfurization module (31) has pores or flow channels for airflow to pass through, and the surface thereof is coated with a desulfurization catalyst coating. The integral desulfurization module (31) is installed in the middle of the sulfide elimination chamber (19) to eliminate sulfur dioxide in the airflow; The negative pressure suction device (3) comprises a negative pressure cabin (32), a negative pressure fan (33), an auxiliary suction mechanism (34), an air induction pipeline (35), an exhaust pipeline (36), a power air supply pipeline (37), and a second gas concentration monitoring module (38); the negative pressure cabin (32) is an open structure at the left end and a closed structure at the right end, and a negative pressure chamber is formed inside the negative pressure cabin (32); the left end of the negative pressure cabin (32) is fixedly connected to the right end of the gas elimination cabin (12) via a second connecting flange; The negative pressure fan (33) is installed at the lower right part of the negative pressure chamber, with its air inlet located at the left end and its air outlet passing through the outside of the right end of the negative pressure chamber (32); the auxiliary suction mechanism (34) is installed at the upper left part of the negative pressure chamber, the auxiliary suction mechanism (34) is a wind-driven air-inducing device, which is arranged vertically, with the air inlet end located at the upper end and the air outlet end located at the lower side; the air-inducing pipeline (35) is a 90-degree elbow, with its air outlet end connected to the air inlet end of the auxiliary suction mechanism (34). The exhaust pipe (36) is a 90-degree elbow, the air inlet end of which is connected to the air outlet end of the auxiliary suction mechanism (34), and the air outlet end of which extends to a position close to the air inlet of the negative pressure fan (33); the power air supply pipe (37) is connected in series with a solenoid valve, the air outlet end of which is connected to the power air supply port of the auxiliary suction mechanism (34), and the air inlet end of which passes through the outside of the negative pressure chamber (32) and is connected to an external high-pressure air source; the second gas concentration monitoring module (38) is installed in the negative pressure chamber and is located between the auxiliary suction mechanism (34) and the negative pressure fan (33); the second gas concentration monitoring module (38) is located at the center of the airflow dust removal channel, and includes a second CO detection module, a second nitrogen oxide detection module, a second sulfide detection module and a second gas sensor, which are respectively used to detect the second CO, second nitrogen oxide, second sulfide and second gas concentration signals.

2. A four-in-one zone synchronous elimination system for poisonous gases in smoke and wind flow according to claim 1, characterized in that: The invention also comprises a lifting support device (4), wherein the lifting support device (4) is arranged below the gas elimination cabin (12), and the lifting support device (4) comprises an upper support platform (39), a lower support platform (40), a lifting hydraulic cylinder (41), a buffer connection piece (42) and an electromagnetic reversing valve group (43); the upper support platform (39) is arranged horizontally below the gas elimination cabin (12); the lower support platform (40) is arranged horizontally below the upper support platform (39); four lifting hydraulic cylinders (41) are distributed in a rectangular shape between the upper support platform (39) and the lower support platform ( 40), and its piston rod end is fixedly connected to the lower end surface of the upper support platform (39), and its cylinder bottom end is fixedly connected to the upper end surface of the lower support platform (40); four buffer connectors (42) are distributed in a rectangular shape between the gas elimination cabin (12) and the upper support platform (39), and its upper end is fixedly connected to the lower end of the gas elimination cabin (12), and its lower end is fixedly connected to the upper end of the lower support platform (40); the electromagnetic reversing valve group (43) is installed on the lower support platform (40), and its working oil port is respectively connected to the four lifting hydraulic cylinders (41), and its oil inlet is connected to the hydraulic oil source.

3. A four-in-one zone synchronous elimination system for poisonous gases in smoke and wind flow according to claim 2, characterized in that: The first-stage dehumidification and dust filtering unit (8) comprises a metal grid frame (44), a wire mesh gas-liquid separator (45) and a wire mesh dust collector (46); the interior of the metal grid frame (44) has a plurality of installation channels that are connected transversely; the plurality of wire mesh gas-liquid separators (45) are correspondingly installed on the left side of the plurality of installation channels; the plurality of wire mesh dust collectors (46) are correspondingly installed on the right side of the plurality of installation channels; the second-stage dust filtering unit (9) is a coarse-effect plate filter; and the third-stage dust filtering unit (10) is a flame-retardant ultrafine filter material high-efficiency filter.

4. A four-in-one zone synchronous elimination system for poisonous gases in smoke and wind flow according to claim 3, characterized in that: The reverse airflow blowing mechanism (11) comprises an air pump (47), an air duct (48) and a nozzle (49); the air pump (47) is installed on the outer wall of the gas elimination cabin (12); the inlet end of the air duct (48) is connected to the outlet end of the air pump (47), and its inlet end penetrates into the interior of the gas elimination cabin (12); the nozzle (49) is fixedly supported inside the gas elimination cabin (12), its nozzle is oriented in the direction of the three-stage dust filter unit (10), and its inlet end is connected to the outlet end of the air duct (48).

5. A four-in-one zone synchronous elimination system for poisonous gases in smoke and wind flow according to claim 4, characterized in that: The thickness of the first dehumidification layer (24), the second dehumidification layer (25) and the third dehumidification layer (26) are all 3 to 5 cm; The desiccant contained in the first dehumidification layer (24), the second dehumidification layer (25) and the third dehumidification layer (26) is one of silicon dioxide, aluminum silicate and calcium chloride, and the particle size of the desiccant in the first dehumidification layer (24) is 5-8 mm, the particle size of the desiccant in the second dehumidification layer (25) is 3-5 mm, and the particle size of the desiccant in the third dehumidification layer (26) is 1-3 mm; the thickness of the first elimination layer (27), the second elimination layer (28) and the third elimination layer (29) is 3-5 cm, and the interval between two adjacent layers is 1-2 cm; the CO catalyst contained in the first elimination layer (27), the second elimination layer (28) and the third elimination layer (29) is prepared by a hydrothermal method or a coprecipitation method, the particle size of the CO catalyst in the first elimination layer (27) and the second elimination layer (28) is 4-6 mm, and the particle size of the CO catalyst in the third elimination layer (29) is 2-4 mm.

6. A four-in-one zone synchronous elimination system for poisonous gases in smoke and wind flow according to claim 5, characterized in that: The overall denitrification module (30) is composed of a tree-branch unit, a flow plate unit and a straight unit from top to bottom; The dendrite-shaped unit comprises a plurality of uniformly distributed dendrite-shaped monomers (50) and a plurality of transverse connectors (53); the plurality of dendrite-shaped monomers (50) are arranged in a staggered manner and are connected to each other through a plurality of transverse connectors (53); the surfaces of the dendrite-shaped monomers (50) and the transverse connectors (53) are coated with a denitrification catalyst coating, and a staggered flow channel is formed in the dendrite-shaped unit; The flow plate unit comprises a plurality of transverse baffles (51) and a plurality of vertical connectors (54); the plurality of transverse baffles (51) are vertically spaced and arranged, and two adjacent transverse baffles (51) are fixedly connected via the plurality of vertical connectors (54); a plurality of vent holes are provided on the surface of each transverse baffle (51), and the surfaces of the transverse baffles (51) and the vertical connectors (54) are coated with a denitrification catalyst coating; The flat unit comprises a plurality of vertical plates (52) and a plurality of transverse connectors (55); the plurality of vertical plates (52) are arranged in a transversely spaced manner, and two adjacent vertical plates (52) are connected via a plurality of transverse connectors (55); a plurality of air holes are provided on the surface of each vertical plate (52), and the surfaces of the vertical plates (52) and the transverse connectors (55) are coated with a denitrification catalyst coating.

7. A four-in-one zone synchronous elimination system for poisonous gases in smoke and wind flow according to claim 6, characterized in that: The integrated desulfurization module (31) comprises a plurality of vertical baffles (59) which are sequentially spaced and arranged, each vertical baffle (59) having a plurality of convection holes formed all over its surface, and a desulfurization catalyst coating is coated on its surface.

8. The four-in-one zone synchronous elimination system for poisonous gases in smoke and wind flow according to claim 7 is characterized in that: The main frame (56) is a flat box structure, which includes a square frame (57) and a hard mesh (58), and two hard meshes (58) are encapsulated at two open ends of the square frame (57).

9. A four-in-one zone synchronous elimination system for poisonous gases in smoke and wind flow according to claim 8, characterized in that: The invention also comprises a third gas concentration monitoring module (67), an alarm and a controller; the third gas concentration monitoring module (67) is arranged in front of the airflow dust removal cabin (5); the third gas concentration monitoring module (67) comprises a third CO detection module, a third nitrogen oxide detection module, a third sulfide detection module and a first gas sensor, which are respectively used to detect third CO, third nitrogen oxide, third sulfide and third gas concentration signals; the alarm is installed outside the negative pressure cabin (32) and is used to perform an alarm action; the controller is installed in the monitoring center and is respectively connected to the solenoid valve, the first gas concentration monitoring module (6), the second gas concentration monitoring module (38), the reverse airflow blowing mechanism (11), the first regulating valve (20), the second regulating valve (21), the third regulating valve (22), the fourth regulating valve (23), the negative pressure fan (33) and the auxiliary suction mechanism (34).

10. A method for synchronously eliminating poisonous gases in smoke and wind flow in four-in-one partitions, using a synchronously eliminating poisonous gases in smoke and wind flow in four-in-one partitions system as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: Installation and debugging of the elimination system; S11: Assembling a multi-stage reverse airflow dust removal device (1), a toxic gas elimination device (2), a negative pressure suction device (3) and a lifting support device (4) to form a four-in-one zoned synchronous elimination system for smoke and air flow toxic gases; S12: Perform airflow tightness test on the smoke, wind and toxic gas four-in-one partition synchronous elimination system to test whether the overall airtightness meets the required standard. After the required standard is met, execute S13. If the required standard is not met, perform airtight treatment until the required standard is met; S13: placing the smoke, wind, and toxic gas four-in-one zoned synchronous elimination system at a predetermined elimination position, and determining the horizontal height of the elimination section according to the cross-sectional dimensions in the working space, and then adjusting the multi-stage reverse airflow dust removal device (1), the toxic gas elimination device (2), and the negative pressure suction device (3) to move synchronously to the height of the elimination section through the lifting support device (4); Step 2: Synchronous elimination of toxic gases in smoke and wind flow by different zones; S21: the controller controls the first regulating valve (20), the second regulating valve (21), the third regulating valve (22) and the fourth regulating valve (23) to all be opened; S22: During the movement of smoke and wind flow, the third gas concentration monitoring module (67) is used to collect the third CO, third nitrogen oxide, third sulfide and third gas concentration signals in the upstream airflow in real time, and send them to the controller. The controller obtains the third CO, third nitrogen oxide, third sulfide and third gas concentration data according to the third CO, third nitrogen oxide, third sulfide and third gas concentration signals, and compares each concentration data with the corresponding start-up purification concentration threshold. When the third gas concentration data exceeds the limit, the alarm is controlled to sound and light alarm to remind the management personnel to take effective countermeasures in time. At the same time, when any one of the third CO, third nitrogen oxide and third sulfide concentration data exceeds the limit, the controller controls the negative pressure fan (33) to start working to provide negative pressure for the elimination operation; S23: using the first gas concentration monitoring module (6) to collect the first CO, first nitrogen oxide, first sulfide and first gas concentration signals on the air inlet side of the airflow dust removal chamber (5) in real time, and sending them to the controller; the controller obtains the first CO, first nitrogen oxide, first sulfide and first gas concentration data according to the first CO, first nitrogen oxide, first sulfide and first gas concentration signals, and compares the first CO, first nitrogen oxide, first sulfide and first gas concentration data with the third CO, third nitrogen oxide, third sulfide and third gas concentration data respectively; when any one of the concentration data increases, the controller controls the solenoid valve to open, uses the external high-pressure wind source to drive the auxiliary suction mechanism (34) to start working, and uses the auxiliary suction mechanism (34) and the negative pressure fan (33) to jointly provide a greater negative pressure for the elimination operation; Under the action of negative pressure, the airflow passes through the airflow dust removal chamber (5), the gas elimination chamber (12) and the negative pressure chamber (32) in sequence, completes the elimination of toxic and harmful substances, and is discharged through the negative pressure fan (33); In the airflow dust removal chamber (5), a flow equalizing plate (7) is first used to change the velocity distribution and direction of the airflow so that the gas flows more evenly to the primary dehumidification and dust filtering unit (8), and then the primary dehumidification and dust filtering unit (8) is used to perform dehumidification and dust filtering on the airflow, and then the secondary dust filtering unit (9) and the tertiary dust filtering unit (10) are used in sequence to perform continuous dust filtering on the airflow; In the gas elimination chamber (12), the gas flow is sequentially subjected to CO, NO and CO removal through three partitions: a carbon monoxide removal chamber (17), a nitrogen oxide removal chamber (18) and a sulfide removal chamber (19). X 、SO X Elimination treatment: first, in the carbon monoxide elimination chamber (17), the first regulating valve (20) and the second regulating valve (21) are used to cooperate to make the air flow flow from bottom to top through the first dehumidification layer (24), the second dehumidification layer (25), the third dehumidification layer (26), the first elimination layer (27), the second elimination layer (28) and the third elimination layer (29), and the first dehumidification layer (24), the second dehumidification layer (25) and the third dehumidification layer (26) are used to sequentially dry the air flow, and the first dehumidification layer (24), the second dehumidification layer (25) and the third dehumidification layer (26) are used to sequentially dry the air flow. The first elimination layer (27), the second elimination layer (28) and the third elimination layer (29) sequentially perform CO elimination treatment on the airflow; secondly, in the nitrogen oxide elimination chamber (18), the second regulating valve (21) and the third regulating valve (22) cooperate to make the airflow flow from top to bottom through the overall denitrification module (30). In this process, the staggered flow channels in the tree-branch unit are used to make the airflow fully contact with a plurality of tree-branch-shaped monomers (50) and a plurality of transverse connectors (53). The transverse baffles ( A plurality of vent holes on the vertical plate (51) reduce the speed of the airflow passing through the flow plate unit, so that the airflow is fully in contact with the surface of each horizontal baffle (51), and a plurality of air holes on the vertical plate (52) are used to cause the airflow to generate convection between the plurality of vertical plates (52) so that the airflow is fully in contact with the surface of each vertical plate (52), and then the denitrification catalyst coating in the branch unit, the denitrification catalyst coating of the flow plate unit and the denitrification catalyst coating of the straight unit are sequentially used to continuously and efficiently denitrify the passing airflow; Then, in the sulfide elimination chamber (19), the third regulating valve (22) and the fourth regulating valve (23) cooperate to make the air flow flow from bottom to top through the integral desulfurization module (31). In this process, a plurality of convection holes on the vertical baffles (59) are used to promote the air flow to convect between the plurality of vertical baffles (59) and fully contact the surface of each vertical baffle (59). The desulfurization catalyst coating in the plurality of vertical baffles (59) is used to continuously and efficiently desulfurize the passing air flow. In the negative pressure chamber (32), a second gas concentration monitoring module (38) is used to collect the third CO, second nitrogen oxide, second sulfide and second gas concentration signals in the negative pressure chamber in real time and send them to a controller. The controller obtains the second CO, second nitrogen oxide, second sulfide and second gas concentration data according to the second CO, second nitrogen oxide, second sulfide and second gas concentration signals, and compares each concentration data with the corresponding purification standard concentration threshold. When the second gas concentration data exceeds the limit, the alarm is controlled to sound and light alarm to remind the management personnel to take effective countermeasures in time. At the same time, when any one of the second CO, second nitrogen oxide and second sulfide concentration data exceeds the limit, the controller controls the first regulating valve (20), the second regulating valve (21), the third regulating valve (22) and the fourth regulating valve (23) to reduce the valve opening, controls the solenoid valve to close, and stops the auxiliary suction mechanism (34) from working, so as to reduce the speed of the airflow passing through the carbon monoxide elimination chamber (17), the nitrogen oxide elimination chamber (18) and the sulfide elimination chamber (19), so as to reduce the CO, NO X 、SO X The elimination process is more complete, and the airflow after the elimination treatment is discharged to the outside of the elimination system through the air outlet of the negative pressure fan (33); After the above process continues for a set time, the smoke and wind flow toxic gas zone synchronous elimination operation is completed; Step 3: Backflush cleaning and maintenance operations; S31: Controlling the negative pressure fan (33) to stop, controlling the solenoid valve to close, controlling the first regulating valve (20) to close, controlling the second regulating valve (21) to close, controlling the third regulating valve (22) to close, and controlling the fourth regulating valve (23) to close; S32: Control the air pump (47) to start working, use the air pump (47) to introduce external airflow and spray it at high speed in the direction of the third-level dust filter unit (10) through the nozzle (49), and use the high-speed sprayed airflow to blow the particles attached to the third-level dust filter unit (10), the second-level dust filter unit (9) and the first-level dehumidification dust filter unit (8) in the opposite direction, so that the attached particles are separated from the third-level dust filter unit (10), the second-level dust filter unit (9) and the first-level dehumidification dust filter unit (8), and then open the inspection door 1 to remove the particles blown off in the airflow dust removal cabin (5); At the same time, the inspection door 2 is opened to check the use of various components in the gas elimination cabin (12). When the desiccant in the first dehumidification layer (24), the second dehumidification layer (25) and the third dehumidification layer (26) reaches a saturated state, the corresponding desiccant is replaced. When the CO catalyst in the first dehumidification layer (27), the second dehumidification layer (28) and the third dehumidification layer (29) reaches a deactivated state, the CO catalyst is activated and regenerated. When the denitrification catalyst coating in the overall denitrification module (30) reaches a deactivated state, the denitrification catalyst is activated and regenerated, or the overall denitrification module (30) is replaced. When the desulfurization catalyst in the overall desulfurization module (31) reaches a deactivated state, the desulfurization catalyst is activated and regenerated, or the overall desulfurization module (31) is replaced. The inspection door 3 is opened to check the conditions of the negative pressure fan (33) and the auxiliary suction mechanism (34) in the negative pressure cabin (32). When there is an abnormality, inspection and treatment are performed. After the above process continues for the set time two, the backflush cleaning and maintenance work is finished; Step 4: Repeat steps 2 and 3 several times until the elimination of toxic gases in the smoke and wind flow is completed.

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