An apparatus and method for harmless treatment of waste gas from an incinerator

Abstract

The present invention discloses an apparatus and method for harmless treatment of waste gas from an incinerator, belonging to the field of flue gas treatment of incinerators. For the apparatus and method for harmless treatment of waste gas from an incinerator of the present invention, a smoke suction hood is installed above the incinerator main body, a heat dissipation pipe is located at the upper end of the smoke suction hood, an adsorption pipe is located below one end of the heat dissipation pipe, an electrostatic adsorption plate is installed inside the adsorption pipe, a partition plate is installed inside the spray box, air flow guide plates are installed on the outer part of the partition plate and the inner wall of the spray box, and spray nozzles are installed on the inner wall of the spray box. The present invention solves the problems of general waste gas treatment effect and low efficiency in the prior art. First, the adsorption pipe adsorbs metal powder, then the spray box flushes the flue gas, and finally the high-efficiency filter box performs high-efficiency filtering work, which fully improves the purification effect of the flue gas, does not affect the flow of the flue gas, maintains harmlessness, and has a high purification efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of incinerator flue gas treatment, and specifically to a device and method for harmless treatment of waste gas from an incinerator. Background Art

[0002] The tail gas of an incinerator contains carbon dioxide, carbon disulfide, hydrogen sulfide, fluorides, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, sulfuric acid (mist), lead, mercury, beryllium compounds, soot and industrial dust. Discharged into the atmosphere, it will pollute the air. These substances enter the human body through the respiratory tract in different ways. Some directly cause harm, and some have an accumulation effect, which will more seriously harm human health. Different substances will have different effects, and it is necessary to effectively treat these tail gases.

[0003] In the prior art, such as the patent number CN201821118418.2, a flue gas whitening and particulate treatment system and a flue gas treatment system, the acoustic agglomeration device can promote the agglomeration of fine particulate matter in the flue gas to form larger particulate matter, so that the larger particulate matter can fall off under the action of gravity and separate from the flue gas, and the flue gas temperature change treatment device can cool and dehumidify the flue gas and / or raise the temperature to treat the flue gas into unsaturated flue gas. Furthermore, it can reduce the particulate matter content in the flue gas.

[0004] However, in the process of incinerator flue gas treatment, the following defects often exist:

[0005] 1. The effect of waste gas treatment is average, the treatment quality is low, and the efficiency is low.

[0006] 2. The waste materials after waste gas treatment are not convenient for centralized collection and treatment, which affects the subsequent work.

[0007] In view of these defects, it is very necessary to design a device and method for harmless treatment of waste gas from an incinerator. Summary of the Invention

[0008] The purpose of the present invention is to provide a device and method for harmless treatment of waste gas from an incinerator, which has the advantages of good waste gas treatment effect, high efficiency, and convenient centralized collection of waste materials, and can solve the problems in the prior art.

[0009] To achieve the above object, the present invention provides the following technical solutions: An apparatus for harmless treatment of waste gas from an incinerator, comprising an incinerator main body, a heat dissipation pipe, an adsorption pipe, a spray box, a high-efficiency filter box, and a chimney. A smoke suction hood is installed above the incinerator main body. The heat dissipation pipe is located at the upper end of the smoke suction hood. The adsorption pipe is located below one end of the heat dissipation pipe. An electrostatic adsorption plate is installed inside the adsorption pipe. The spray box is located on one side of the lower end of the adsorption pipe. A partition is installed inside the spray box. Airflow guide plates are installed on the outer part of the partition and the inner wall of the spray box. And a shower nozzle is installed on the inner wall of the spray box. A first induced draft fan is arranged between the high-efficiency filter box and the spray box. A vibration motor is installed at the upper end of the high-efficiency filter box. And a high-efficiency filter cushion layer is arranged in the middle of the high-efficiency filter box. A connecting arm is installed at the upper end of the high-efficiency filter cushion layer. A vibration plate is installed between the connecting arm and the vibration motor. The chimney is located on one side of the high-efficiency filter box.

[0010] Preferably, a feed pipe is installed on one side of the outer part of the incinerator main body. A conveying smoke pipe is installed between the smoke suction hood and the heat dissipation pipe. And a smoke suction port is arranged at the lower end of the smoke suction hood. The smoke suction port is communicated with the incinerator main body. And a preliminary filter screen is installed in the middle of the smoke suction port. A cooling ring is installed at the lower end of the conveying smoke pipe.

[0011] Preferably, a first transmission pipe is installed between the heat dissipation pipe and the adsorption pipe. And heat dissipation fins are installed on the outer surface of the heat dissipation pipe. A plurality of heat dissipation fins are provided. A heat conduction pipe is installed inside the heat dissipation pipe. The outer surface of the heat conduction pipe is in contact with a plurality of heat dissipation fins. The heat dissipation pipe is communicated with the smoke suction hood through the conveying smoke pipe. A flue gas passage is arranged in the middle of the heat conduction pipe. The flue gas passage is respectively communicated with the first transmission pipe and the conveying smoke pipe. And connecting plates are installed at both ends of the heat dissipation pipe. A second transmission pipe is installed at the lower end of the adsorption pipe. The adsorption pipe is connected to the spray box through the second transmission pipe. The two ends of the first induced draft fan are respectively communicated with the spray box and the high-efficiency filter box.

[0012] Preferably, a fixed clamping sleeve is installed on the outer surface of the adsorption pipe. An opening is arranged in the middle of the fixed clamping sleeve. And the fixed clamping sleeve is clamped to the outside of the adsorption pipe through a clamping groove and is engaged with the adsorption pipe. And an electrostatic generator is installed inside the fixed clamping sleeve.

[0013] Preferably, a storage water tank is installed at the upper end of the spray box. A booster pump is installed at the upper end of the storage water tank. And a water pipe is arranged at one end of the booster pump. A flow dividing valve is installed at the lower end of the storage water tank. Guide water pipes are installed on both sides below the flow dividing valve. One side of the guide water pipe is fixedly connected to the inner wall of the spray box. An air flow through hole is arranged at the lower end of the spray box. The air flow through hole is respectively communicated with the second transmission pipe and the high-efficiency filter box.

[0014] Preferably, a motor is installed on the outer surface of the spray box, and a guide fan is installed inside the spray box. The motor is connected to the guide fan through a coupling. A sealing cover is installed on the outer surface of the spray box, and a drain pipe is installed at the lower end of the spray box.

[0015] Preferably, a material collection base is installed at the lower end of the high-efficiency filter box. A material collection tray is installed inside the material collection base, and a rotating paddle is installed inside the high-efficiency filter box. The rotating paddle is rotatably connected to the high-efficiency filter box through a connecting shaft.

[0016] Preferably, an installation box is installed outside the upper end of the high-efficiency filter box. The installation box is connected to the high-efficiency filter box and the vibration motor through fixing screws respectively. A third transfer pipe is installed on one side of the upper end of the high-efficiency filter box. A second induced draft fan is installed at the lower end of the third transfer pipe. Both ends of the second induced draft fan are communicated with the third transfer pipe and the chimney respectively.

[0017] Preferably, the high-efficiency filter pad includes a hydrophobic polyvinylidene fluoride microporous filter membrane, an inner and outer support layer of polypropylene non-woven fabric, heat-resistant polypropylene and a silica gel sealing layer. Limiting rollers are installed on both sides of the high-efficiency filter pad. The limiting rollers are connected to the high-efficiency filter pad through telescopic springs. A vibration spring is installed in the middle of the connecting arm. The lower end of the connecting arm is connected to the high-efficiency filter pad through a fixing screw.

[0018] A method for harmless treatment of waste gas of an incinerator, characterized by comprising the following steps:

[0019] Step 1: Introduce the combustible through the feed pipe into the incinerator main body for combustion. The smoke hood collects the smoke generated by the combustion of the incinerator main body through the smoke inlet, and initially blocks the waste inside the incinerator main body through the preliminary filter screen.

[0020] Step 2: After introducing the smoke into the heat dissipation pipe through the first induced draft fan, it flows inside the smoke passage. The heat of the heat conduction pipe is exported from the outer surface of the heat conduction pipe through a plurality of heat dissipation fins inside the heat dissipation pipe to reduce the temperature of the smoke.

[0021] Step 3: After the smoke is cooled, it enters the adsorption pipe. Static electricity is generated through the static electricity generator and conducts electricity through a plurality of static adsorption plates, so as to adsorb metal powder.

[0022] Step 4: After the flue gas enters the inside of the spray box, the flow direction of the flue gas is changed by the partition plate. In cooperation with multiple inclined air flow guide plates, the flue gas can be guided. The flue gas is sprayed by the spray nozzles. After the particles in the flue gas are mixed with water, they will be affected by the gravity factor and slide to the lowest end of the air flow guide plate. The waste materials are collected centrally through the air flow guide plate. The cleaning water is guided to the lower part of the spray box through the drain holes and discharged through the drain pipe at the lower end of the spray box. The waste materials stored in the air flow guide plate can be cleaned by removing the sealing cover and opening the inside of the spray box;

[0023] Step 5: After the flue gas is sucked into the high-efficiency filter box by the first induced draft fan, it passes through the high-efficiency filter cushion layer and undergoes final filtration through the high-efficiency filter cushion layer. After filtration, the vibration plate can be vibrated by the vibration motor, so that the connecting arm drives the high-efficiency filter cushion layer to vibrate, so that the powder particles adsorbed inside the high-efficiency filter cushion layer can be shaken off and collected centrally through the material receiving base;

[0024] Step 6: The flue gas filtered by the high-efficiency filter box is introduced into the chimney for harmless emission.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. For the waste gas harmless treatment device and method of this incinerator, in the waste gas treatment in the prior art, generally, the flue gas particles are adsorbed by multiple adsorption and filtration layers or washed by spraying. The effect of waste gas treatment is average, the treatment quality is low, and the efficiency is low. In the present invention, the metal powder is first adsorbed by the adsorption tube, then the flue gas is washed by the spray box, and finally the high-efficiency filtration work is carried out by the high-efficiency filter box, which fully improves the purification effect of the flue gas, does not affect the flow of the flue gas, and has a high purification efficiency while maintaining harmlessness.

[0027] 2. For the waste gas harmless treatment device and method of this incinerator, the flue gas adsorption process in the prior art does not have the effect of quickly diverting the flue gas, so the adsorption efficiency is average. In the present invention, the metal powder contained in the flue gas can be adsorbed by multiple electrostatic adsorption plates inside the adsorption tube, which is convenient for subsequent flue gas treatment work. Moreover, the longitudinal frame-shaped electrostatic adsorption plates improve the adsorption effect, do not affect the flow of the flue gas, have a simple structure and strong functionality.

[0028] 3. The waste gas harmless treatment device and method of this incinerator. In the prior art, the flue gas spray washing work is affected by water flow, reducing the flow velocity of the flue gas, and the range of flue gas cleaning is uneven, resulting in low flue gas treatment quality. In the present invention, the cleaning water is introduced into the storage water tank through a booster pump. The storage water tank supplies the water flow into the two groups of water guide pipes through a flow dividing valve. The water flow is supplied to the shower nozzles through the water guide pipes. The cleaning water is evenly sprayed through the shower nozzles, so that the flowing flue gas is washed for cleaning work. After the flue gas enters the spray box, the flow direction of the flue gas is changed through the partition plate. With the cooperation of multiple inclined air flow guide plates, the flue gas can be guided. Through the inclined air flow guide plates, the efficiency of the air flow being showered can be improved, and the particles in the flue gas will slide to the lowest end of the air flow guide plate under the influence of gravity after being mixed with water. The materials are concentrated and stored through the air flow guide plates, facilitating the cleaning work.

[0029] 4. The waste gas harmless treatment device and method of this incinerator. In the prior art, the filter layer used for flue gas filtration has too much residual waste inside during long-term operation, affecting the subsequent flue gas purification treatment work. In the present invention, after the flue gas is inhaled into the high-efficiency filter box through the first induced draft fan, it passes through the high-efficiency filter cushion layer, and final filtration is carried out through the high-efficiency filter cushion layer. After filtration, the vibration motor can drive the vibration plate to vibrate, so that the connecting arm drives the high-efficiency filter cushion layer to vibrate, thereby shaking off the powder particles adsorbed inside the high-efficiency filter cushion layer, facilitating the subsequent work of the high-efficiency filter cushion layer, improving the working effect, enabling the high-efficiency filter cushion layer to have the ability to work for a long time, and the waste materials can be conveniently taken out through the material receiving tray for cleaning work, improving work efficiency. By rotating the rotating paddle, the flue gas can be moved, so that the flue gas inhaled into the high-efficiency filter box fully contacts the high-efficiency filter cushion layer, improving the filtration efficiency. Brief Description of the Drawings

[0030] Figure 1 It is the overall front view of the present invention;

[0031] Figure 2 It is the internal structure diagram of the smoke suction hood of the present invention;

[0032] Figure 3 It is the internal structure diagram of the heat dissipation pipe of the present invention;

[0033] Figure 4 It is the internal structure diagram of the adsorption pipe of the present invention;

[0034] Figure 5 It is the top view of the adsorption pipe of the present invention;

[0035] Figure 6 It is the internal structure diagram of the spray box of the present invention;

[0036] Figure 7 It is the internal structure diagram of the high-efficiency filter box of the present invention.

[0037] In the figure: 1. Incinerator main body; 101. Smoking hood; 1011. Smoke conveying pipe; 1012. Preliminary filter screen; 1013. Cooling ring; 1014. Smoking port; 102. Feed pipe; 2. Heat dissipation pipe; 201. Connection plate; 202. Heat dissipation fins; 203. First transmission pipe; 204. Heat conduction pipe; 205. Flue gas channel; 3. Adsorption pipe; 301. Fixed collar; 302. Second transmission pipe; 303. Electrostatic generator; 304. Electrostatic adsorption plate; 305. Opening; 4. Spraying box; 401. Storage water tank; 4011. Diverting valve; 4012. Water guide pipe; 4013. Spraying nozzle; 402. Motor; 4021. Diversion fan; 403. Sealing cover; 404. Drain pipe; 405. Partition board; 406. Air flow vent; 407. Air flow guide plate; 5. First induced draft fan; 6. High-efficiency filter box; 601. Vibration motor; 602. Installation box; 603. Material receiving base; 604. Material receiving tray; 605. Third transmission pipe; 606. High-efficiency filter cushion; 607. Connecting arm; 608. Vibration spring; 609. Limit roller; 610. Rotating paddle; 611. Vibration plate; 7. Chimney; 8. Second induced draft fan. Specific embodiments

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figure 1-7, An exhaust gas harmless treatment device for an incinerator, comprising an incinerator main body 1, a heat dissipation pipe 2, an adsorption pipe 3, a spray box 4, a high-efficiency filter box 6 and a chimney 7. A smoke suction hood 101 is installed above the incinerator main body 1. The heat dissipation pipe 2 is located at the upper end of the smoke suction hood 101. The adsorption pipe 3 is located below one end of the heat dissipation pipe 2. An electrostatic adsorption plate 304 is installed inside the adsorption pipe 3. After the flue gas is cooled by the heat dissipation pipe 2, it enters the inside of the adsorption pipe 3. The metal powder contained in the flue gas can be adsorbed by multiple electrostatic adsorption plates 304, which facilitates the subsequent flue gas treatment work. Moreover, the longitudinal frame-shaped electrostatic adsorption plate 304 improves the adsorption effect and does not affect the flow of the flue gas. The structure is simple and the functionality is strong. The spray box 4 is located on one side of the lower end of the adsorption pipe 3. A partition plate 405 is installed inside the spray box 4. Airflow guide plates 407 are installed on the outside of the partition plate 405 and the inner wall of the spray box 4. And a shower nozzle 4013 is installed on the inner wall of the spray box 4. After the flue gas enters the inside of the spray box 4, the flow direction of the flue gas is changed by the partition plate 405. Cooperating with multiple inclined airflow guide plates 407, the flue gas can be guided. The flue gas is showered by the shower nozzle 4013 for flushing work. The inclined airflow guide plates 407 can improve the efficiency of the airflow being showered. And after the particles in the flue gas are mixed with water, they will be affected by the gravity factor and slide to the lowermost end of the airflow guide plate 407. The materials are concentrated and stored through the airflow guide plate 407, which facilitates the cleaning work. A first induced draft fan 5 is arranged between the high-efficiency filter box 6 and the spray box 4. A vibration motor 601 is installed at the upper end of the high-efficiency filter box 6. And a high-efficiency filter cushion 606 is arranged in the middle of the inside of the high-efficiency filter box 6. A connecting arm 607 is installed at the upper end of the high-efficiency filter cushion 606. A vibrating disc 611 is installed between the connecting arm 607 and the vibration motor 601. After the flue gas is sucked into the high-efficiency filter box 6 through the first induced draft fan 5, it passes through the high-efficiency filter cushion 606, and the final filtration is carried out through the high-efficiency filter cushion 606. After filtration, the vibration motor 601 can drive the vibrating disc 611 to vibrate, so that the connecting arm 607 drives the high-efficiency filter cushion 606 to vibrate, thereby shaking off the powder particles adsorbed inside the high-efficiency filter cushion 606, so as to facilitate the subsequent work of the high-efficiency filter cushion 606, improve the working effect, and enable the high-efficiency filter cushion 606 to have the ability to work for a long time. The chimney 7 is located on one side of the high-efficiency filter box 6.

[0040] Further, a feed pipe 102 is installed on one outer side of the incinerator main body 1. A conveying smoke pipe 1011 is installed between the smoke suction hood 101 and the heat dissipation pipe 2. A smoke suction port 1014 is provided at the lower end of the smoke suction hood 101. The smoke suction port 1014 is communicated with the incinerator main body 1. A preliminary filter screen 1012 is installed in the middle of the interior of the smoke suction port 1014. A cooling ring 1013 is installed at the lower end of the conveying smoke pipe 1011. The smoke suction hood 101 collects the smoke generated by the combustion of the incinerator main body 1 through the smoke suction port 1014. The waste inside the incinerator main body 1 is preliminarily blocked by the preliminary filter screen 1012. The temperature inside the conveying smoke pipe 1011 can be reduced through the cooling ring 1013, and the loss of the conveying smoke pipe 1011 can be reduced.

[0041] Further, a first transmission pipe 203 is installed between the heat dissipation pipe 2 and the adsorption pipe 3. Heat dissipation fins 202 are installed on the outer surface of the heat dissipation pipe 2. A plurality of heat dissipation fins 202 are provided. A heat conduction pipe 204 is installed inside the heat dissipation pipe 2. The outer surface of the heat conduction pipe 2 is in contact with a plurality of heat dissipation fins 202. The heat dissipation pipe 2 is communicated with the smoke suction hood 101 through the conveying smoke pipe 1011. A smoke passage 205 is provided in the middle of the interior of the heat conduction pipe 2. The smoke passage 205 is communicated with the first transmission pipe 203 and the conveying smoke pipe 1011 respectively. Connection plates 201 are installed at both ends of the heat dissipation pipe 2. A second transmission pipe 302 is installed at the lower end of the adsorption pipe 3. The adsorption pipe 3 is connected to the spray box 4 through the second transmission pipe 302. Both ends of the first induced draft fan 5 are communicated with the spray box 4 and the high-efficiency filter box 6 respectively. After the smoke is introduced into the interior of the heat dissipation pipe 2 by the first induced draft fan 5, it flows inside the smoke passage 205. The heat of the heat conduction pipe 2 is exported from the interior of the heat dissipation pipe 2 through a plurality of heat dissipation fins 202 on the outer surface of the heat conduction pipe 2, reducing the temperature of the smoke, facilitating subsequent treatment work, not affecting the conveyance of the smoke, and then the smoke is sucked into the interior of the spray box 4 by the first induced draft fan 5.

[0042] Further, a fixed clamping sleeve 301 is installed on the outer surface of the adsorption pipe 3. An opening 305 is provided in the middle of the fixed clamping sleeve 301. The fixed clamping sleeve 301 is clamped to the outside of the adsorption pipe 3 through a clamping groove and is engaged with the adsorption pipe 3. An electrostatic generator 303 is installed inside the fixed clamping sleeve 301. After the smoke is cooled and enters the interior of the adsorption pipe 3, static electricity is generated by the electrostatic generator 303 and conducts electricity through a plurality of electrostatic adsorption plates 304, thereby adsorbing metal powder. The cleaning work is facilitated by disassembling and installing the fixed clamping sleeve 301. The operation is simple and is conducive to improving the purification efficiency.

[0043] Further, a storage water tank 401 is installed at the upper end of the spray box 4. A booster pump is installed at the upper end of the storage water tank 401. One end of the booster pump is provided with a water pipe. A flow dividing valve 4011 is installed at the lower end of the storage water tank 401. Guide water pipes 4012 are installed on both sides below the flow dividing valve 4011. One side of the guide water pipe 4012 is fixedly connected to the inner wall of the spray box 4. An air flow port 406 is provided at the lower end of the spray box 4. The air flow port 406 is respectively communicated with the second transfer pipe 302 and the high-efficiency filter box 6. The cleaning water is introduced into the storage water tank 401 by the booster pump. The storage water tank 401 introduces the water flow into the two guide water pipes 4012 through the flow dividing valve 4011. The water flow is supplied to the shower nozzles 4013 through the guide water pipes 4012. The cleaning water is evenly sprayed through the shower nozzles 4013, so that the flowing flue gas is washed and the cleaning work is carried out.

[0044] Further, a motor 402 is installed on the outer surface of the spray box 4. A guide fan 4021 is installed inside the spray box 4. The motor 402 and the guide fan 4021 are connected by a coupling for transmission. The motor 402 drives the guide fan 4021 to rotate. The guide fan 4021 rotates above the interior of the spray box 4. During the rotation process, the flue gas can be guided from bottom to top, which is convenient for full flushing work. A sealing cover 403 is installed on the outer surface of the spray box 4. A drain pipe 404 is installed at the lower end of the spray box 4. The cleaning water sprayed by the shower nozzles 4013 is collected through the inclined air flow guide plate 407. A drain hole is provided at the lower end of the air flow guide plate 407. The cleaning water is guided to the lower part of the spray box 4 through the drain hole and discharged through the drain pipe 404 at the lower end of the spray box 4. The waste materials remaining in the air flow guide plate 407 can be cleaned by removing the sealing cover 403 and opening the interior of the spray box 4, and subsequent work can be carried out.

[0045] Further, a material receiving base 603 is installed at the lower end of the high-efficiency filter box 6. A material receiving tray 604 is installed inside the material receiving base 603. The flue gas entering the high-efficiency filter box 6 is filtered and adsorbed by the high-efficiency filter cushion 606, and then the waste materials are shaken off by the vibrating plate 611 and centrally collected through the material receiving base 603. The waste materials can be conveniently taken out through the material receiving tray 604 for cleaning work, improving work efficiency. A rotating paddle 610 is installed inside the high-efficiency filter box 6. The rotating paddle 610 is rotationally connected to the high-efficiency filter box 6 through a connecting shaft. By rotating the rotating paddle 610, the flue gas can be moved, so that the flue gas inhaled into the high-efficiency filter box 6 can fully contact with the high-efficiency filter cushion 606, improving the filtering efficiency.

[0046] Furthermore, an installation box 602 is installed outside the upper end of the high-efficiency filter box 6. The installation box 602 is connected to the high-efficiency filter box 6 and the vibration motor 601 respectively through fixing screws. A third transmission pipe 605 is installed on one side of the upper end of the high-efficiency filter box 6. A second induced draft fan 8 is installed at the lower end of the third transmission pipe 605. Both ends of the second induced draft fan 8 are communicated with the third transmission pipe 605 and the chimney 7. The flue gas filtered by the high-efficiency filter box 6 is introduced into the chimney 7 through the second induced draft fan 8 for harmless emission, improving the environmental protection effect.

[0047] Furthermore, the high-efficiency filter cushion 606 includes a hydrophobic polyvinylidene fluoride microporous filter membrane, an inner and outer support layer of polypropylene non-woven fabric, heat-resistant polypropylene and a silica gel sealing layer. Limiting rollers 609 are installed on both sides of the high-efficiency filter cushion 606. The limiting rollers 609 are connected to the high-efficiency filter cushion 606 through a telescopic spring. A vibration spring 608 is installed in the middle of the connecting arm 607. The lower end of the connecting arm 607 is connected to the high-efficiency filter cushion 606 through a fixing screw. The vibrating disk 611 drives the connecting arm 607 to vibrate. Cooperating with the vibration spring 608, the whole high-efficiency filter cushion 606 can be fully activated, so that the position of the high-efficiency filter cushion 606 continuously moves through the limiting rollers 609, so that the high-efficiency filter cushion 606 can maintain sufficient stability during the movement, reduce wear and extend the service life.

[0048] A method for harmless treatment of waste gas of an incinerator, characterized by comprising the following steps:

[0049] Step 1: The combustible is introduced into the incinerator main body 1 through the feed pipe 102 for combustion. The smoke hood 101 collects the flue gas generated by the combustion of the incinerator main body 1 through the smoke inlet 1014, and the waste materials inside the incinerator main body 1 are initially blocked by the preliminary filter screen 1012;

[0050] Step 2: After the flue gas is introduced into the heat dissipation pipe 2 through the first induced draft fan 5, it flows inside the flue gas passage 205. The heat of the heat conduction pipe 204 is exported to the inside of the heat dissipation pipe 2 through a plurality of heat dissipation fins 202 on the outer surface of the heat conduction pipe 204 to reduce the temperature of the flue gas;

[0051] Step 3: After the flue gas is cooled, it enters the adsorption pipe 3. Static electricity is generated through the static electricity generator 303 and conducted through a plurality of static adsorption plates 304 to adsorb metal powder;

[0052] Step 4: After the flue gas enters the inside of the spray box 4, the flow direction of the flue gas is changed by the partition plate 405. In cooperation with multiple inclined air flow guide plates 407, the flue gas can be guided. The flue gas is sprayed by the spray nozzles 4013. After the particles in the flue gas are mixed with water, they will be affected by the gravity factor and slide to the lowest end of the air flow guide plate 407. The waste materials are centrally stored through the air flow guide plate 407. The cleaning water is guided through the water discharge holes to the lower part of the spray box 4 and discharged through the water pipe 404 at the lower end of the spray box 4. The waste materials stored in the air flow guide plate 407 can be cleaned by removing the sealing cover 403 and opening the inside of the spray box 4. The motor 402 drives the guide fan 4021 to rotate. The guide fan 4021 rotates above the inside of the spray box 4. During the rotation process, the flue gas can be guided from bottom to top, which is convenient for thorough flushing work;

[0053] Step 5: After the flue gas is inhaled into the inside of the high-efficiency filter box 6 by the first induced draft fan 5, it passes through the high-efficiency filter cushion layer 606 and is finally filtered through the high-efficiency filter cushion layer 606. After filtration, the vibration motor 601 drives the vibration plate 611 to vibrate, so that the connecting arm 607 drives the high-efficiency filter cushion layer 606 to vibrate, thereby shaking off the powder particles adsorbed inside the high-efficiency filter cushion layer 606, which are centrally collected through the material receiving base 603. By rotating the rotating paddle 610, the flue gas can be moved, so that the flue gas inhaled into the inside of the high-efficiency filter box 6 can fully contact with the high-efficiency filter cushion layer 606, improving the filtration efficiency;

[0054] Step 6: The flue gas filtered by the high-efficiency filter box 6 is introduced into the chimney 7 for harmless discharge.

[0055] In summary, for the waste gas harmless treatment device and method of this incinerator, the combustibles are introduced into the incinerator main body 1 through the feed pipe 102 for combustion. The smoke suction hood 101 collects the flue gas generated by the combustion of the incinerator main body 1 through the smoke suction port 1014. The waste materials inside the incinerator main body 1 are initially blocked by the preliminary filter screen 1012. After the flue gas is introduced into the heat dissipation pipe 2 by the first induced draft fan 5, it flows inside the flue gas channel 205. The heat of the heat conduction pipe 204 is exported to the inside of the heat dissipation pipe 2 through a number of heat dissipation fins 202 on the outer surface of the heat conduction pipe 204 to reduce the temperature of the flue gas. After the flue gas is cooled, it enters the adsorption pipe 3. Static electricity is generated by the static electricity generator 303 and conducted through multiple static adsorption plates 304 to adsorb metal powder. After the flue gas enters the spray box 4, the flow direction of the flue gas is changed by the partition plate 405, and the flue gas can be guided by cooperating with multiple obliquely arranged air flow guide plates 407. The flue gas is sprayed by the spray nozzles 4013. After the particles in the flue gas are mixed with water, they will slide to the lowest end of the air flow guide plate 407 under the influence of gravity, and the waste materials are concentrated and stored through the air flow guide plate 407. The cleaning water is guided to the lower part of the spray box 4 through the water discharge holes and discharged through the water discharge pipe 404 at the lower end of the spray box 4. The waste materials stored in the air flow guide plate 407 can be cleaned by removing the sealing cover 403 and opening the inside of the spray box 4. The motor 402 drives the diversion fan 4021 to rotate. The diversion fan 4021 rotates above the inside of the spray box 4. During the rotation process, the flue gas can be guided from bottom to top, which is convenient for full flushing. After the flue gas is sucked into the high-efficiency filter box 6 by the first induced draft fan 5, it passes through the high-efficiency filter cushion 606, and the final filtration is carried out through the high-efficiency filter cushion 606. After filtration, the vibration motor 601 can drive the vibration disk 611 to vibrate, so that the connecting arm 607 drives the high-efficiency filter cushion 606 to vibrate, so that the powder particles adsorbed inside the high-efficiency filter cushion 606 can be shaken off and centrally collected through the material receiving base 603. By rotating the rotating paddle 610, the flue gas can be moved, so that the flue gas sucked into the high-efficiency filter box 6 can fully contact with the high-efficiency filter cushion 606, improving the filtration efficiency. The flue gas filtered by the high-efficiency filter box 6 is introduced into the chimney 7 by the second induced draft fan 8 for harmless emission, improving the environmental protection effect.

[0056] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas harmless treatment device for an incinerator, comprising an incinerator main body (1), a heat dissipation pipe (2), an adsorption pipe (3), a spray box (4), a high-efficiency filter box (6) and a chimney (7), characterized in that: Above the main body (1) of the incinerator, a smoke suction hood (101) is installed. The heat dissipation pipe (2) is located at the upper end of the smoke suction hood (101). The adsorption pipe (3) is located below one end of the heat dissipation pipe (2). An electrostatic adsorption plate (304) is installed inside the adsorption pipe (3). The spray box (4) is located on one side of the lower end of the adsorption pipe (3). A partition plate (405) is installed inside the spray box (4). Airflow guide plates (407) are installed on the outer part of the partition plate (405) and the inner wall of the spray box (4). And a flushing spray head (4013) is installed on the inner wall of the spray box (4). A first induced draft fan (5) is arranged between the high-efficiency filter box (6) and the spray box (4). A vibration motor (601) is installed at the upper end of the high-efficiency filter box (6). And a high-efficiency filter cushion layer (606) is arranged in the middle of the high-efficiency filter box (6). A connecting arm (607) is installed at the upper end of the high-efficiency filter cushion layer (606). A vibration disc (611) is installed between the connecting arm (607) and the vibration motor (601). The chimney (7) is located on one side of the high-efficiency filter box (6); A storage water tank (401) is installed at the upper end of the spray box (4). A booster pump is installed at the upper end of the storage water tank (401). And a water pipe is arranged at one end of the booster pump. A flow dividing valve (4011) is installed at the lower end of the storage water tank (401). Guide water pipes (4012) are installed on both sides below the flow dividing valve (4011). One side of the guide water pipe (4012) is fixedly connected to the inner wall of the spray box (4). An air circulation port (406) is arranged at the lower end of the spray box (4). The air circulation port (406) is communicated with the second transmission pipe (302) and the high-efficiency filter box (6) respectively. A motor (402) is installed on the outer surface of the spray box (4). And a guide fan (4021) is installed inside the spray box (4). The motor (402) and the guide fan (4021) are connected by a coupling for transmission. A sealing cover (403) is installed on the outer surface of the spray box (4). And a drain pipe (404) is installed at the lower end of the spray box (4); The cleaning water is introduced into the storage water tank (401) through a booster pump. The storage water tank (401) introduces the water flow into the two groups of water guide pipes (4012) through a flow dividing valve (4011). The water flow is supplied to the shower nozzles (4013) through the water guide pipes (4012). The cleaning water is evenly sprayed through the shower nozzles (4013), so that the flowing flue gas is washed and the cleaning work is carried out. The motor (402) drives the guide fan (4021) to rotate. The guide fan (4021) rotates above the inside of the spray box (4). During the rotation process, the flue gas is guided from bottom to top. The cleaning water sprayed by the shower nozzles (4013) is collected through the inclined air flow guide plate (407). The lower end of the air flow guide plate (407) is provided with a water discharge hole. The cleaning water is guided to the lower part of the spray box (4) through the water discharge hole and discharged through the water pipe (404) at the lower end of the spray box (4). By removing the sealing cover (403), the inside of the spray box (4) is opened, and the waste materials remaining in the air flow guide plate (407) are cleaned up.

2. The waste gas harmless treatment device of an incinerator according to claim 1, characterized in that: A feed pipe (102) is installed on one side of the outside of the incinerator main body (1). A conveying smoke pipe (1011) is installed between the smoke suction hood (101) and the heat dissipation pipe (2). The lower end of the smoke suction hood (101) is provided with a smoke suction port (1014). The smoke suction port (1014) is communicated with the incinerator main body (1). A preliminary filter screen (1012) is installed in the middle of the inside of the smoke suction port (1014). A cooling ring (1013) is installed at the lower end of the conveying smoke pipe (1011).

3. The waste gas harmless treatment device of an incinerator according to claim 2, characterized in that: A first transmission pipe (203) is installed between the heat dissipation pipe (2) and the adsorption pipe (3). Heat dissipation fins (202) are installed on the outer surface of the heat dissipation pipe (2). A plurality of heat dissipation fins (202) are provided. A heat conduction pipe (204) is installed inside the heat dissipation pipe (2). The outer surface of the heat conduction pipe (2) is in contact with a plurality of heat dissipation fins (202). The heat dissipation pipe (2) is communicated with the smoke suction hood (101) through the conveying smoke pipe (1011). A flue gas channel (205) is arranged in the middle of the inside of the heat conduction pipe (2). The flue gas channel (205) is respectively communicated with the first transmission pipe (203) and the conveying smoke pipe (1011). Connection plates (201) are installed at both ends of the heat dissipation pipe (2). A second transmission pipe (302) is installed at the lower end of the adsorption pipe (3). The adsorption pipe (3) is connected to the spray box (4) through the second transmission pipe (302). The two ends of the first induced draft fan (5) are respectively communicated with the spray box (4) and the high-efficiency filter box (6).

4. The waste gas harmless treatment device of an incinerator according to claim 3, characterized in that: A fixed clamping sleeve (301) is installed on the outer surface of the adsorption pipe (3). An opening (305) is arranged in the middle of the fixed clamping sleeve (301). The fixed clamping sleeve (301) is clamped to the outside of the adsorption pipe (3) through a clamping groove and is engaged with the adsorption pipe (3). An electrostatic generator (303) is installed inside the fixed clamping sleeve (301).

5. The waste gas harmless treatment device of an incinerator according to claim 4, characterized in that: A material receiving base (603) is installed at the lower end of the high-efficiency filter box (6), a material receiving tray (604) is installed inside the material receiving base (603), and a rotating paddle (610) is installed inside the high-efficiency filter box (6), and the rotating paddle (610) is rotatably connected to the high-efficiency filter box (6) via a connecting shaft.

6. The waste gas harmless treatment device of an incinerator according to claim 5, characterized in that: An installation box (602) is installed outside the upper end of the high-efficiency filter box (6), and the installation box (602) is connected to the high-efficiency filter box (6) and the vibration motor (601) respectively through fixing screws. A third transmission pipe (605) is installed on one side of the upper end of the high-efficiency filter box (6), and a second induced draft fan (8) is installed at the lower end of the third transmission pipe (605), and two ends of the second induced draft fan (8) are respectively connected to the third transmission pipe (605) and the chimney (7).

7. The waste gas harmless treatment device of an incinerator according to claim 6, characterized in that: The high-efficiency filter pad (606) includes a hydrophobic polyvinylidene fluoride microporous filter membrane, inner and outer supporting layers of polypropylene non-woven fabric, heat-resistant polypropylene and a silicone sealing layer, and limiting rollers (609) are installed on both sides of the high-efficiency filter pad (606), and the limiting rollers (609) are connected to the high-efficiency filter pad (606) through a telescopic spring transmission. A vibration spring (608) is installed in the middle of the connecting arm (607), and the lower end of the connecting arm (607) is connected to the high-efficiency filter pad (606) through a fixing screw.

8. A method for harmless treatment of waste gas of an incinerator exhaust gas treatment device according to claim 7, characterized in that, The steps include: Step 1: The combustion material is introduced into the incinerator body (1) through the feed pipe (102) for combustion, the smoke from the combustion of the incinerator body (1) is collected by the smoke hood (101) through the smoke port (1014), and the waste material inside the incinerator body (1) is initially blocked by the preliminary filter (1012); Step 2: After the smoke is introduced into the heat dissipation pipe (2) by the first induced draft fan (5), the smoke flows in the smoke passage (205), and the heat of the heat conduction pipe (204) is conducted out of the heat dissipation pipe (22) through a plurality of heat dissipation fins (202) on the outer surface of the heat conduction pipe (204), thereby reducing the temperature of the smoke; Step 3: After the flue gas is cooled and enters the adsorption tube (3), static electricity is generated by the static electricity generator (303), and conducts electricity through multiple static electricity adsorption plates (304), thereby adsorbing metal powder; Step 4: After the smoke enters the spray box (4), the direction of the smoke is changed by the partition (405), and the smoke can be guided by a plurality of oblique air flow guide plates (407). The smoke is flushed by the flushing nozzle (4013). After the particles in the smoke are mixed with water, they are affected by gravity and slide into the lower end of the air flow guide plate (407). The materials are concentrated and stored through the air flow guide plate (407). The cleaning water is guided to the bottom of the spray box (4) through the drain hole and discharged through the drain pipe (404) at the lower end of the spray box (4). The sealing cover (403) can be removed to open the inside of the spray box (4) and clean the waste materials retained in the air flow guide plate (407); Step Five: After the flue gas is inhaled into the high-efficiency filter box (6) by the first induced draft fan (5), it passes through the high-efficiency filter cushion layer (606) and undergoes final filtration through the high-efficiency filter cushion layer (606). After filtration, the vibration motor (601) can drive the vibration disc (611) to vibrate, causing the connecting arm (607) to drive the high-efficiency filter cushion layer (606) to vibrate, so that the powder particles adsorbed inside the high-efficiency filter cushion layer (606) can be shaken off and centrally collected through the material receiving base (603); Step Six: The flue gas filtered by the high-efficiency filter box (6) is introduced into the chimney (7) for harmless emission.

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