Novel industrial V0CS waste gas purification treatment tool

Abstract

The utility model discloses a novel purification treatment tool for industrial V0CS waste gas, and relates to the technical field of waste gas purification, one side of a spray tower is fixedly connected with a flue, a support frame is arranged above the flue, a hole is formed in the support frame, an adsorption box is arranged in the hole, an exhaust pipeline is arranged above the adsorption box and is fixedly connected with the adsorption box, and the exhaust pipeline is fixedly connected with the adsorption box. An exhaust device is installed at the tail end of the exhaust pipeline in a matched mode and comprises a centrifugal fan, and a servo motor is arranged on one side of the centrifugal fan. The discharge tower is arranged on the other side of the centrifugal fan and is connected with the discharge tower through a pipeline; the spraying tower, the adsorption box and the like are combined for treatment, various pollutants in the industrial VOCS waste gas can be effectively removed, and meanwhile, the heating device is used for desorption after a zeolite adsorbent is saturated, so that treatment interruption caused by frequent replacement of the adsorbent due to the saturation of the adsorbent is avoided, and the service life of the VOCS waste gas is prolonged. And the economic loss caused by replacement of the adsorbent due to shutdown of equipment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of waste gas purification, in particular to a novel purification treatment frock for industrial VOCs waste gas. BACKGROUND

[0002] In the modern industrial production process, such as chemical industry, coating, printing, pharmaceutical and many other industries, the emission of volatile organic compounds VOCs waste gas has become a very serious environmental problem, with the continuous expansion of industrialization scale and the increasingly stringent environmental protection requirements, the effective management of industrial VOCs waste gas is more and more critical and urgent.

[0003] Traditional VOCs waste gas treatment technology has its limitations, although adsorption technology can remove VOCs in waste gas to some extent, the regeneration process of common adsorbent after adsorption saturation is complex and costly, and the regeneration effect is difficult to maintain long-term stability, and the frequent replacement of adsorbent increases the operation cost and management difficulty.

[0004] From the perspective of the overall frock system, the industrial waste gas treatment system generally has the defect of low integration of each component, which causes the waste gas to flow not smoothly in the whole treatment process, in addition, the traditional frock lacks enough flexibility and adaptability in dealing with different working conditions and waste gas composition diversity; when the industrial production process is adjusted or the raw material is changed, the existing frock is difficult to make effective adjustment quickly, and cannot guarantee stable and efficient purification effect; furthermore, in the maintenance and repair of equipment, the existing frock does not fully consider the convenience and safety of the operator, lacks necessary protection facilities and convenient repair channels, which not only increases the difficulty and cost of equipment maintenance, but also easily causes safety accidents, threatening the life safety of the operator. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a novel purification treatment frock for industrial VOCs waste gas, by setting heating device, on the one hand, the regeneration treatment of adsorption saturated zeolite can be carried out, the waste heat is recovered to improve energy utilization rate and reduce operation cost; on the other hand, the clean air after treatment can be heated to meet the requirement of air temperature of some specific industrial process, with the help of centrifugal fan and exhaust device, the smooth transmission of waste gas in the whole treatment system is ensured, the emission flow and pressure of waste gas are controlled, and it is stably discharged into the discharge tower; to solve the technical problems in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] The utility model provides an industry V0CS exhaust gas novel purification treatment frock, including spray tower, one side of spray tower is fixedly connected with flue, is equipped with support frame above flue, is equipped with hole on support frame, and is equipped with adsorption box in the hole, the top of adsorption box is equipped with exhaust duct and is fixedly connected with adsorption box, the tail end cooperation of exhaust duct is equipped with exhaust device, exhaust device includes centrifugal fan, one side of centrifugal fan is equipped with servo motor, the other side of centrifugal fan is equipped with discharge tower and is connected with discharge tower pipeline.

[0008] As a further technical scheme of the utility model, the heating device bottom side is equipped with waste heat recovery pipeline, the tail end of waste heat recovery pipeline is fixedly connected with the discharge tower and penetrates the tower wall of the discharge tower.

[0009] As a further technical scheme of the utility model, the control valve is installed between the adsorption box, the flue and the exhaust duct.

[0010] As a further technical scheme of the utility model, the servo motor and the centrifugal fan are installed with pulley on the same side and are connected by belt drive.

[0011] As a further technical scheme of the utility model, the support frame is equipped with guardrail, and the support frame side is equipped with maintenance stairs and is fixedly connected with the support frame.

[0012] As a further technical scheme of the utility model, the adsorption box body is made of stainless steel or carbon steel, and the adsorption box is filled with zeolite adsorbent in layers, and airflow distribution plates are arranged between each layer.

[0013] As a further technical scheme of the utility model, the spray tower top is equipped with air inlet pipe, and the air inlet pipe is made of material with good corrosion resistance and high strength.

[0014] As a further technical scheme of the utility model, the control valve is an electric valve and is electrically connected with the controller, and the control valve is made of corrosion-resistant material.

[0015] As a further technical scheme of the utility model, the heating device includes a heating cavity and a heating element arranged in the heating cavity, and the heating element is an electric heating wire or a gas heating pipe.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. The utility model discloses, through spray tower, adsorption box etc. Combination processing can carry out effective removal to various pollutants in industrial VOCS waste gas, and spray tower can preliminarily treat water-soluble pollutant, dust etc., and adsorption box utilizes the adsorption characteristic of zeolite and carries out selective adsorption to different types of VOCS, greatly improves the overall purification efficiency, can make the waste gas after treatment reach more stringent environmental protection emission standard,

[0018] 2. The utility model discloses, heating device can provide enough heat for the zeolite adsorbent in adsorption box, promotes the VOCS molecule adsorbed in zeolite micropore and obtains enough energy and desorption, through heating device to adsorbent desorption can guarantee that adsorption box works continuously and effectively in longer time, when adsorbent adsorption saturation, utilize heating device and promptly desorption treatment, and zeolite packing can be reused, like this avoided the treatment interruption caused by adsorbent saturation and frequent replacement adsorbent, maintained the continuous operation of entire industrial VOCS waste gas purification treatment frock, thereby improved production efficiency, reduced the economic loss brought by equipment downtime replacement adsorbent,

[0019] 3. The utility model discloses, the waste heat recovery pipeline of heating device is connected with the discharge tower, can recover and pass in the gas or other medium that needs preheating in the discharge tower to the waste heat produced in the heating process, improved energy utilization, reduced energy consumption, conforms to the environmental protection concept of energy saving and emission reduction. ACCURACY

[0020] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0021] Figure 2 It is the front view of the utility model Figure 1 .

[0022] Figure 3 It is the plan view of the utility model Figure 1 .

[0023] Figure 4 It is the bottom perspective structure schematic diagram of the utility model Figure 1 .

[0024] Figure 5 It is another perspective structure schematic diagram of the utility model Figure 1 .

[0025] Figure 6 It is the local structure enlarged diagram of the utility model Figure 5 .

[0026] In the drawing: 1 - spray tower, 2 - flue, 3 - adsorption box, 4 - exhaust duct, 5 - heating device, 6 - exhaust device, 7 - discharge tower, 8 - support frame,

[0027] 11 - intake pipe, 31 - control valve; 51 - delivery conduit, 52 - heat recovery conduit, 61 - servo motor, 62 - centrifugal fan, 81 - maintenance staircase. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Please refer to Figures 1-6 In the embodiments of the present application, the spray tower 1 is fixedly connected with a flue 2 on one side, a support frame 8 is arranged above the flue 2, a hole is formed in the support frame 8, and an adsorption box 3 is arranged in the hole, an exhaust conduit 4 is arranged above the adsorption box 3 and fixedly connected with the adsorption box 3, an exhaust device 6 is installed at the tail end of the exhaust conduit 4 in cooperation, the exhaust device 6 comprises a centrifugal fan 62, and a servo motor 61 is arranged on one side of the centrifugal fan 62; the other side of the centrifugal fan 62 is provided with a discharge tower 7 and connected with the discharge tower 7 through a pipeline.

[0030] By adopting the above technical scheme, the spray tower 1 as the first process of waste gas treatment can preliminarily treat the industrial waste gas entering the spray tower 1 by using the spraying liquid in the spray tower 1, for example, remove part of dust particles and some water-soluble pollutants contained in the waste gas, so that the impurity content of the waste gas entering the adsorption box 3 is reduced, and more favorable conditions are created for the adsorption process; the flue 2 reasonably guides the waste gas treated by the spray tower 1 to the adsorption box 3, fills the adsorption box 3 with suitable zeolite adsorbent, and the VOCS in the waste gas can be effectively adsorbed on the surface of the adsorbent, so as to realize deep removal of organic pollutants in the waste gas, greatly reduce the content of VOCS discharged into the atmosphere, and stably connect the exhaust conduit 4 above the adsorption box 3 to provide a smooth discharge channel for the clean gas after adsorption treatment, so that it can flow to the exhaust device 6 in an orderly manner. The centrifugal fan 62 in the exhaust device 6 stably operates under the drive of the servo motor 61, can accurately control the flow rate and pressure of the gas, and ensures that the adsorbed gas is transmitted to the discharge tower 7 and discharged into the atmospheric environment through the discharge tower 7.

[0031] In the embodiment, the support frame 8 is provided with a heating device 5 on one side, and a waste heat recovery pipeline 52 is arranged on the bottom side of the heating device 5. The tail end of the waste heat recovery pipeline 52 is fixedly connected with the discharge tower 7 and penetrates the tower wall of the discharge tower 7. The other side of the bottom of the heating device 5 is provided with a conveying pipeline 51, which extends to the bottom of the support frame 8 and is connected with the pipeline at the bottom of the adsorption box 3.

[0032] By adopting the above technical scheme, when the adsorbent in the adsorption box 3 reaches a saturated state after a long time of adsorption, the heating device 5 can be started according to the set temperature parameters, air medium is conveyed to the adsorption box 3 through the conveying pipeline 51 to heat the zeolite adsorbent, so as to make the VOC molecules adsorbed on the surface of the adsorbent obtain enough energy to desorb, so that the adsorbent restores the adsorption capacity and realizes cyclic use. This greatly prolongs the service life of the adsorbent, reduces the cost investment caused by frequent replacement of the adsorbent and the system downtime caused by replacement operation, and ensures that the entire waste gas treatment process can be stably and efficiently operated for a long time. The waste heat recovery pipeline 52 recovers and utilizes heat, reduces the additional energy consumption of the entire system, and conforms to the environmental protection concept of energy saving and emission reduction.

[0033] In the embodiment, the control valve 31 is arranged between the adsorption box 3, the flue 2 and the exhaust pipeline 4.

[0034] By adopting the above technical scheme, the control valve 31 is arranged between the adsorption box 3, the flue 2 and the exhaust pipeline 4, so that the flow path and flow of waste gas can be accurately controlled. During the process that the waste gas enters the adsorption box 3 from the flue 2, the opening degree of the control valve 31 can be adjusted according to the actual working condition requirement, so as to reasonably control the flow of waste gas entering the adsorption box 3. At the same time, when the zeolite adsorbent in the adsorption box 3 is desorbed, the valves 31 at the upper end and the lower end are closed, so as to effectively cut off the channel of the waste gas entering the adsorption box 3 and completely prevent the waste gas from continuing to flow into the adsorption box 3 which has reached the adsorption saturation state. At the same time, other adsorption boxes in the system continue to maintain the normal adsorption working state, so as to ensure that the entire waste gas treatment process will not be interrupted due to the desorption operation of the individual adsorption box.

[0035] In the embodiment, the servo motor 61 and the centrifugal fan 62 are both provided with a pulley on the same side and are connected through a belt drive.

[0036] By adopting the above technical scheme, the servo motor 61 and the centrifugal fan 62 are driven by the belt pulley and the belt, so that the rotation speed of the centrifugal fan 62 can be conveniently adjusted, and then the flow rate and the pressure of the exhaust gas can be accurately controlled; according to the actual working condition requirement of the exhaust gas treatment, the rotation speed of the centrifugal fan 62 can be flexibly changed, so that it can be adapted to different working scenes, and the exhaust gas can be stably and efficiently conveyed from the adsorption tank to the exhaust tower through the exhaust pipeline according to the predetermined parameters for final discharge, thereby improving the ability of the entire exhaust gas treatment system to cope with complex and variable working conditions, and ensuring the continuity and effectiveness of the exhaust gas purification treatment process.

[0037] In the embodiment, the support frame 8 is provided with a protective fence, one side of the support frame 8 is provided with a maintenance staircase 81, and the maintenance staircase 81 is fixedly connected with the support frame 8.

[0038] By adopting the above technical scheme, the protective fence arranged on the support frame 8 is like a solid barrier, which effectively prevents the risk of falling of the operator due to approaching or working on the support frame during the operation of the equipment. Whether it is daily inspection of equipment components such as the exhaust pipeline 4 of the adsorption tank 3, or handling some small faults or performing equipment debugging, the protective fence can provide reliable lateral protection for the operator. The existence of the maintenance staircase 81 provides a convenient access for the maintenance and repair work of the equipment. When it is necessary to replace the adsorbent, clean the inside, or inspect and repair the exhaust pipeline 4 and related connecting components of the adsorption tank 3 located at a high position on the support frame 8, the maintenance staircase 81 enables the operator to easily reach the working position.

[0039] In the embodiment, the main body of the adsorption tank 3 is made of stainless steel or carbon steel, and the adsorption tank 3 is filled with zeolite adsorbent in layers, and a gas flow distribution plate is arranged between each layer.

[0040] By adopting the above technical scheme, the main body of the adsorption tank 3 is made of stainless steel or carbon steel, which gives the adsorption tank 3 good corrosion resistance. The design of filling the adsorption tank 3 with zeolite adsorbent in layers and cooperating with the gas flow distribution plate greatly improves the adsorption efficiency and uniformity. The zeolite adsorbent in each layer is separated by the gas flow distribution plate. When the exhaust gas enters the adsorption tank 3, the numerous small air holes uniformly distributed on the gas flow distribution plate can effectively disperse and guide the airflow, so that the exhaust gas uniformly passes through each layer of zeolite adsorbent. In this way, the problem of premature saturation of some adsorbents due to local concentration of airflow is avoided, and the problem of insufficient utilization of adsorbents in other areas is also avoided. This ensures that the adsorbent and the VOCs molecules in the exhaust gas can fully contact and adsorb, thereby improving the overall utilization rate of the adsorbent and enhancing the adsorption and purification effect of VOCs. The treated exhaust gas can meet the strict environmental protection emission standards.

[0041] In the embodiment, the spray tower 1 is provided with an air inlet pipe 11 made of a material with good corrosion resistance and high strength.

[0042] By adopting the above technical scheme, since the industrial waste gas is complex and often contains various corrosive substances such as acid, alkali or oxidizing substances, the specific material with good corrosion resistance used in the air inlet pipe 11 can effectively resist the corrosion of these corrosive components. During the long-time waste gas transmission process, the pipe wall will not be corroded, thinned or even perforated due to contact with corrosive gas, thereby ensuring the structural integrity of the air inlet pipe 11, maintaining a stable gas conveying channel, avoiding waste gas leakage caused by pipeline damage and a series of safety hazards and environmental pollution risks caused thereby, and ensuring the safe and reliable operation of the entire waste gas treatment system.

[0043] In the embodiment, the control valve 31 is an electric valve and is electrically connected with a controller, and the control valve 31 is made of a corrosion-resistant material.

[0044] By adopting the above technical scheme, the electric connection of the control valve 31 and the controller realizes precise and automatic adjustment of the opening degree of the valve. The controller can quickly and accurately calculate and instruct the electric valve to adjust its opening degree according to the preset program logic and the real-time collected system operation parameters, such as the pressure, temperature, waste gas flow and other key data in the adsorption tank.

[0045] In the embodiment, the heating device 5 includes a heating cavity and a heating element arranged in the heating cavity, and the heating element is an electric heating wire or a gas heating pipe.

[0046] By adopting the above technical scheme, for the regeneration of the adsorbent, the combination of the heating cavity and the electric heating wire or the gas heating pipe can generate stable and controllable heat. When the zeolite adsorbent in the adsorption tank 3 reaches the adsorption saturation state, the heating device 5 is started, the heating element is rapidly heated and uniformly transmits heat to the heating cavity, thereby providing a suitable desorption temperature environment for the adsorbent. This precise temperature control ensures that the adsorbent can be desorbed under optimal conditions, efficiently removes the VOCs molecules adsorbed on its surface, regenerates the adsorbent and restores its adsorption capacity, thereby realizing cyclic use, greatly prolonging the service life of the adsorbent and reducing the replacement frequency and cost of the adsorbent.

[0047] The working principle of the utility model is: the spray tower 1 as the first process of waste gas treatment can use the inside spray liquid to preliminarily treat the entered industrial waste gas, for example, removes part of dust particles and some water-soluble pollutants contained in the waste gas, so that the waste gas impurity content entering the adsorption box 3 is reduced, and more favorable conditions are created for the adsorption process; the flue 2 reasonably guides the waste gas treated by the spray tower 1 to the adsorption box 3, by filling the appropriate zeolite adsorbent in the adsorption box 3, the VOCs in the waste gas can be effectively adsorbed on the adsorbent surface, thereby realizing the deep removal of organic pollutants in the waste gas, greatly reducing the VOCs content discharged into the atmosphere, and the exhaust pipeline 4 is stably connected above the adsorption box 3, providing a smooth discharge channel for the clean gas after adsorption treatment, so that it can orderly flow to the exhaust device 6, the centrifugal fan 62 in the exhaust device 6 stably operates under the driving of the servo motor 61, can accurately control the flow rate and pressure of the gas, and ensure that the adsorbed gas is transmitted to the discharge tower 7 and discharged into the atmospheric environment through the discharge tower 7.

[0048] After the adsorbent in the adsorption box 3 reaches the saturation state after a long time of adsorption, the heating device 5 can be started according to the set temperature parameter, the air medium is transmitted to the adsorption box 3 through the conveying pipeline 51, the zeolite adsorbent is heated, the VOCS molecules adsorbed on the surface of the adsorbent are desorbed by obtaining enough energy, so that the adsorbent restores the adsorption capacity and realizes the cyclic use, which greatly prolongs the service life of the adsorbent, reduces the cost investment caused by frequent replacement of the adsorbent and the system downtime caused by replacement operation, and ensures that the whole waste gas treatment process can be stably and efficiently operated for a long time; the waste heat recovery pipeline 52 recovers and utilizes the heat, reduces the additional energy consumption of the whole system, and fits the energy-saving and emission-reducing environmental protection concept.

[0049] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

[0050] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an equivalent scope appropriate to each element. Such combinations are only expressly excluded where it is clear that the combination with the explicitly recited combination would not work, or where the disclosure explicitly teaches away from the combination.

Claims

1. A novel purification and treatment tooling for industrial VOCs waste gas, characterized in that: The utility model provides a kind of exhaust gas treatment device, including spray tower (1), one side of the spray tower (1) is fixedly connected with flue (2), support frame (8) is equipped above flue (2), hole is opened in support frame (8), and adsorption box (3) is equipped in hole, the adsorption box (3) is equipped with exhaust duct (4) above, and is fixedly connected with adsorption box (3), the exhaust duct (4) tail end is cooperatively installed with exhaust device (6), the exhaust device (6) includes centrifugal fan (62), one side of centrifugal fan (62) is equipped with servo motor (61);The other side of centrifugal fan (62) is equipped with discharge tower (7), and is connected with discharge tower (7) pipeline.

2. The industrial VOCs exhaust gas novel purification treatment tooling according to claim 1, characterized in that: One side of the support frame (8) is provided with a heating device (5), and one side of the bottom of the heating device (5) is provided with a waste heat recovery pipeline (52). The tail end of the waste heat recovery pipeline (52) is fixedly connected with the discharge tower (7) and penetrates the tower wall of the discharge tower (7). The other side of the bottom of the heating device (5) is provided with a conveying pipeline (51) which extends to the bottom of the support frame (8) and is connected with the pipeline at the bottom of the adsorption box (3).

3. The industrial VOCs exhaust gas novel purification treatment tooling according to claim 1, characterized in that: The control valve (31) is cooperatively installed between the adsorption box (3) and the flue (2) and the exhaust duct (4).

4. The industrial VOCs exhaust gas novel purification treatment tooling according to claim 1, characterized in that: The servo motor (61) and the centrifugal fan (62) are cooperatively installed with pulleys on the same side and are connected by a belt drive.

5. The industrial VOCs exhaust gas novel purification treatment tooling according to claim 1, characterized in that: The support frame (8) is provided with a guardrail, and one side of the support frame (8) is provided with a maintenance staircase (81) which is fixedly connected with the support frame (8).

6. The industrial VOCs exhaust gas novel purification treatment tooling according to claim 1, characterized in that: The main body of the adsorption box (3) is made of stainless steel or carbon steel, and the adsorption box (3) is filled with zeolite adsorbent in layers, and airflow distribution plates are arranged between each layer. The airflow distribution plates are uniformly provided with a plurality of small air holes.

7. The industrial VOCs exhaust gas novel purification treatment tooling according to claim 1, characterized in that: The spray tower (1) is provided with an air inlet pipe (11) made of a material with good corrosion resistance and high strength.

8. The industrial VOCs exhaust gas novel purification treatment tooling according to claim 3, characterized in that: The control valve (31) is an electric valve and is electrically connected with a controller, and the control valve (31) is made of a corrosion-resistant material.

9. The industrial VOCs exhaust gas novel purification treatment tooling according to claim 2, characterized in that: The heating device (5) includes a heating cavity and a heating element arranged in the heating cavity. The heating element is an electric heating wire or a gas heating pipe.

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