CN106746463B

CN106746463B - Sludge drying treatment system and sludge hazardous gas treatment device

Info

Publication number: CN106746463B
Application number: CN201710011620.9A
Authority: CN
Inventors: 杨建�
Original assignee: Tianjin Wuzhoutongchuang Air-Conditioning And Refrigeration Pty Ltd
Current assignee: Tianjin Wuzhoutongchuang Air-Conditioning And Refrigeration Pty Ltd
Priority date: 2017-01-07
Filing date: 2017-01-07
Publication date: 2020-06-09
Anticipated expiration: 2037-01-07
Also published as: CN106746463A

Abstract

The invention discloses a sludge hazardous gas treatment device, which comprises a box body, wherein a transmission belt for transmitting sludge is arranged in the box body, a feed inlet and a discharge outlet are respectively arranged at the upper end and the lower end of the box body, the box body is arranged in a sealing manner, a diversion fan for driving air to form heat flow is arranged at one end of the transmission belt, which is opposite to the feed inlet, a heating element and an evaporator for recovering waste water in hot and humid air are arranged at the lower end of the transmission belt, a partition plate is arranged at one side, back to the fan, of the inner wall of the box body, a drainage fan is arranged between the evaporator and the heating element, an exhaust pipe for exhausting air and a fresh air pipe. The heat as much as possible is used for drying the sludge instead of being directly discharged into the air to cause heat loss, and the energy utilization rate is improved. When the sludge is not required to be treated again, the exhaust gas is introduced into the exhaust gas treatment box through the exhaust pipe for treatment, so that harmful gas is removed, and environmental pollution caused by the emission of the harmful gas is prevented.

Description

Sludge drying treatment system and sludge hazardous gas treatment device

Technical Field

The invention relates to a sludge treatment device, in particular to a sludge drying treatment system and a sludge hazardous gas treatment device.

Background

At present, after the sludge is subjected to primary centrifugal treatment, the water content of the sludge is about 80%, the sludge has high water content and cannot be directly incinerated, and the sludge needs to be dehydrated and dried to reduce the water content and then can be recycled. The sludge drying process is generally completed by high-temperature heating or natural drying.

If the publication number is CN101148309, the patent discloses a belt sludge dryer, which comprises a box body, wherein an upper conveying belt, a middle conveying belt and a lower conveying belt are arranged inside the box body, the upper, middle and lower conveying belts respectively comprise shaft wheels and conveying belts arranged at two ends, the conveying belts are mounted on the shaft wheels, and the shaft wheels are driven by a speed regulating motor to drive the conveying belts to run; the mud feeding device is characterized in that a mud feeding hopper is arranged at the upper end of the box body, a mud outlet is formed in one side of the lower end of the box body, and a plurality of air draft devices are arranged above the upper conveying belt.

The air draft device consists of a fan, a ventilating pipeline, an air outlet, an air inlet and a butterfly valve for controlling the air outlet. The side of the carriage body is provided with a heat energy air inlet which leads to the inside of the carriage body, and the heat energy air inlet is communicated with a hot air channel arranged at the side of the carriage body. The hot air channel is connected with a coke reverberatory furnace arranged outside, and the hot air at the upper part of the coke reverberatory furnace is conveyed to the interior of the compartment body through the hot air channel by a heat energy air inlet.

When the sludge is conveyed on the conveying belt, the fan of the air draft device works, natural wind and hot air are respectively fed through the air inlet and the heat energy inlet, and the fan draws out the air and discharges the air through the ventilating duct and the air outlet arranged at the top end. The air temperature in the compartment body is generally about 50-65 ℃. When air flows through the sludge laid on the conveyor belt, moisture in the sludge is also taken away along with the air flow.

The disadvantages of this patent are: in the process of drying the sludge, a large amount of hot humid air can be discharged, and because some harmful substances in the sludge can be vaporized and discharged along with the hot humid air, harmful gases can be discharged and diffused to the surrounding environment, so that the environment pollution is caused.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a sludge hazardous gas treatment device which does not discharge harmful gas.

In order to achieve the purpose, the invention provides the following technical scheme:

a sludge hazardous gas treatment device comprises a box body, wherein a conveying belt for conveying sludge is arranged in the box body, a feed inlet and a discharge outlet are respectively arranged at the upper end and the lower end of the box body, the box body is arranged in a sealing manner, a diversion fan for driving air to form heat flow is arranged at one end, opposite to the feed inlet, of the conveying belt, a heating element for heating the air is arranged at one end, close to the diversion fan, of the lower end of the conveying belt, an evaporator for recovering waste water in hot and humid air is arranged at one end, far away from the diversion fan, of the lower end of the conveying belt, a partition plate for guiding the heat flow to the evaporator is arranged on one side, opposite to the diversion fan, of the inner wall of the box body, a drain pipe is connected to a liquid outlet of the evaporator, a diversion fan for guiding the heat flow from the evaporator, fresh air pipe and exhaust pipe all are equipped with the start-stop valve, exhaust pipe one end is connected with exhaust-gas treatment case.

Through adopting above-mentioned technical scheme, wet mud gets into the internal back of railway carriage or compartment, along with the reciprocal transportation of transmission band in the railway carriage or compartment. At the moment, the diversion fan drives the air to form heat flow along the length direction of the conveying belt, the sludge is heated to expand, so that the moisture in the sludge is diffused into the air and then taken away by the heat flow, and drying is realized. The heat flow is guided by the partition plate after flowing through the transmission belt, so that the heat flow with moisture flows to the evaporator, the temperature of the heat flow is reduced, the moisture in the heat flow is condensed, and the condensed moisture is led out through the drain pipe, so that the total moisture in the compartment is reduced, and the sludge is dried. The cooled air flow passes through the heating element under the action of the drainage fan, so that the temperature of the air flow rises, the air flow is changed into heat flow again and rises to the front of the diversion fan, the air flow flows along the length direction of the conveying belt under the action of the diversion fan, and the sludge is completely dried by circulating the way. In the process, the compartment body is closed, and the airflow forms a closed thermal cycle in the compartment body, so that heat as much as possible is used for drying sludge instead of being directly discharged into the air to cause heat loss, and the energy utilization rate is improved. When the sludge is not required to be treated again, the exhaust gas is introduced into the exhaust gas treatment box through the exhaust pipe for treatment, so that harmful gas is removed, and environmental pollution caused by the emission of the harmful gas is prevented.

The invention is further provided with: the waste gas treatment incasement is equipped with condenser, draught fan, PM2.5 filter, low temperature plasma and photocatalysis exhaust-gas treatment ware in proper order, photocatalysis exhaust-gas treatment ware's air outlet is equipped with wears to establish the play tuber pipe of waste gas treatment case.

Through adopting above-mentioned technical scheme, waste gas once through the condenser condensation, then through the draught fan drainage to PM2.5 filter in, after the large granule dust in the detached waste gas, make the harmful substance in the waste gas decompose the oxidation through low temperature plasma, eliminate the peculiar smell that various pollution sources discharged, make poisonous and harmful gas reach low poisoning, innoxious. Then the malodorous gas such as sulfide, benzene alkene and the like in the waste gas is treated by a photocatalysis waste gas processor, and the malodorous gas is decomposed and converted into low molecular compounds such as carbon dioxide and the like under the irradiation of ultraviolet light beams, so that the waste gas reaches the emission standard.

The invention is further provided with: the air outlet of draught fan is towards PM2.5 filter, the exhaust-gas treatment incasement is equipped with the baffle and separates into the first chamber and the second chamber of placing condenser and draught fan with the exhaust-gas treatment case, the baffle is worn to establish by the air outlet of draught fan.

Through adopting above-mentioned technical scheme, make first chamber form the negative pressure under the effect of draught fan, waste gas is suppressed in the second chamber, prevents that waste gas refluxes in first intracavity when waste gas blows on the PM2.5 filter, ensures that waste gas enters into and filters in the PM2.5 filter.

The invention is further provided with: the carriage body is internally provided with an air curtain plate used for guiding heat flow passing through the heating element to the flow guide fan, and the discharge port is positioned on one side of the air curtain plate back to the heating element.

Through adopting above-mentioned technical scheme, make the direct flow direction water conservancy diversion fan of thermal current, and can not pass through the discharge gate. Thereby make discharge gate negative pressure form sealed, reduced the heat of overflowing the carriage body from the discharge gate, make more heat be used for sludge drying.

The invention is further provided with: the conveyer belt is provided with a plurality of along vertical direction is crisscross, and the lower extreme the discharge end of conveyer belt is equipped with the stock guide, the stock guide is slope setting downwards towards discharge gate one end, relative discharge gate one side of stock guide and air curtain board are located the coplanar back to discharge gate one side.

Through adopting above-mentioned technical scheme to the discharge gate ejection of compact that makes the mud that the drying finishes can be accurate has reduced dry sludge and has received the hot current influence and drop the probability in the railway carriage or compartment internal.

The invention is further provided with: and one end of the discharge port, which is opposite to the reinforcer, is fixedly provided with a material collecting hopper, and the discharge port is positioned in the material collecting hopper and at the lower end of the material collecting hopper.

Through adopting above-mentioned technical scheme, utilize piling up of feeding to form sealedly at the feed inlet, reduced the heat of overflowing the carriage body from the feed inlet, made more heat be used for sludge drying.

The invention is further provided with: the improved heating box comprises a box body, a heating element, a drainage pipe, an exhaust pipe and a fresh air pipe, wherein a heat insulation box is arranged outside the box body, the box body is positioned in the heat insulation box, the heating element comprises a heat pump and an energy converter, the energy converter is positioned in the box body, the heat pump is positioned outside the box body and in the heat insulation box, and the drainage pipe, the exhaust pipe and the fresh air pipe penetrate through the heat insulation box.

By adopting the technical scheme, the air in the heat insulation box is heated through the heat pump, and then the energy converter heats the hot air in the compartment body by utilizing the hot air in the heat insulation box. In the process, a power supply is not required to be connected into the compartment body, so that the compartment body has better sealing performance, and the heat loss in the compartment body is reduced. And the working environment of the heat pump is in a dry state, so that the damage of the heat pump caused by the water inflow of the heat pump is reduced.

The invention is further provided with: the transmission band one end is equipped with and is used for driving transmission band pivoted drive assembly, be equipped with the division board in the heat insulation box and separate the heat pump chamber that is used for placing the heat pump and the drive chamber that is used for placing drive assembly with the heat insulation box, heat pump chamber and drive intracavity all are equipped with the heat exchanger that is used for exchanging heat with the external world, the division board is the heat insulating board.

Through adopting above-mentioned technical scheme, make the heat between heat pump chamber and the drive chamber isolated, reduced the temperature in drive chamber to drive assembly's life has been prolonged. When the temperature of the driving assembly is too high, the heat exchanger can be started to reduce the temperature in the driving cavity, and the temperature in the heat pump cavity cannot be influenced, namely the temperature in the compartment body cannot be influenced, so that the sludge drying quality is ensured.

The invention is further provided with: the compartment body, the partition plate and the heat insulation box are all made of hard foamed color steel plates.

Through adopting above-mentioned technical scheme, the various steel sheet of rigid polyurethane foaming has better thermal-insulated and moisture-proof nature to guaranteed the drying in the heat-proof box, reduced drive assembly and heat pump because the probability that the intaking damaged. Meanwhile, the probability of heat in the compartment body overflowing into the air is reduced, and as much heat as possible is used for drying the sludge.

It is another object of the present invention to provide a sludge drying air source heat pump system that allows the sludge to be substantially dried.

The technical purpose of the invention is realized by the following technical scheme:

the utility model provides a sludge drying treatment system, includes above-mentioned sludge danger gas processing apparatus, still includes the mixer that is used for mixing dry sludge and wet mud, is used for the granulation from the semi-dry mud of mixer ejection of compact granulator and is used for sieving the branch screen (ing) machine of mud granule, be equipped with the first discharge gate that is used for the ejection of compact little mud granule and the second discharge gate that is used for the ejection of compact big mud granule on the branch screen (ing) machine, first discharge gate links to each other with the railway carriage or compartment body, the second discharge gate links to each other with the feed inlet of granulator.

By adopting the technical scheme, the larger the sludge particles are, the larger the water content is. The wet sludge enters the stirrer to be stirred with the dry sludge, so that the water content in the wet sludge is reduced. And then granulating the wet sludge into sludge particles to disperse the wet sludge so that the wet sludge is easier to dry. The sludge particles with larger particles are sent back to the granulator again for granulation through the screening machine, so that the sludge particles entering the sludge dryer cannot be overlarge, and the sludge particles dried by the sludge dryer are all dried to meet the standard requirement.

The invention has the following advantages: the heat energy is utilized for drying the sludge as much as possible, so that the heat consumption is reduced, and the energy waste is reduced; no harmful gas is discharged, and the pollution to the environment is reduced; the dried sludge particles are similar in size and are dried to the standard requirement.

Drawings

FIG. 1 is a top cross-sectional view of a first embodiment;

FIG. 2 is a front sectional view of the first embodiment;

FIG. 3 is a side cross-sectional view of the first embodiment;

FIG. 4 is a sectional view of an exhaust treatment tank according to one embodiment;

fig. 5 is a schematic structural diagram of the second embodiment.

Reference numerals: 1. a heat insulation box; 2. a compartment body; 3. a partition plate; 4. a heat pump chamber; 5. a drive chamber; 6. a heat exchanger; 7. a conveyor belt; 8. a drive assembly; 9. a reduction motor; 10. a feed inlet; 11. a strip-shaped narrow-mouth feed hopper; 12. a material guide plate; 13. a discharge port; 14. a collection hopper; 15. a flow guiding fan; 16. a heating member; 17. a drainage fan; 18. an evaporator; 19. a heat pump; 20. a transducer; 21. a drain pipe; 22. a wastewater tank; 23. an air curtain plate; 24. a partition plate; 25. an exhaust duct; 26. a fresh air duct; 27. opening and closing the valve; 28. a waste gas treatment tank; 29. a baffle plate; 30. a first chamber; 31. a second chamber; 32. a condenser; 33. an induced draft fan; 34. a PM2.5 filter; 35. low temperature plasma; 36. a photocatalytic exhaust gas processor; 37. a blender; 38. a granulator; 39. a screening machine; 40. a first discharge port; 41. a second discharge port; 42. a third discharge port; 43. and (4) a hoisting machine.

Detailed Description

The invention is further described with reference to the accompanying drawings.

The first embodiment is as follows: as shown in FIG. 1, the sludge hazardous gas treatment device comprises a heat insulation box 1, wherein the heat insulation box 1 is arranged in a sealed manner. The heat insulation box 1 is internally and fixedly provided with a closed box body 2. The carriage body 2 is abutted to one side of the heat insulation box 1, the length and the height of the carriage body 2 and the height of the heat insulation box 1 are equal, and the width of the carriage body 2 is smaller than that of the heat insulation box 1. The division plate 3 is arranged in the heat insulation box 1 along the width direction, one end of the division plate 3 is fixedly connected to the compartment body 2, and the other end of the division plate is fixedly connected to the compartment body 2. The compartment body 2, the partition plate 3 and the heat exchange and heat insulation box 1 are all made of hard foamed color steel plates.

As shown in fig. 1, the heat insulating box 1 is partitioned by a partition plate 3 into two heat pump chambers 4 and a driving chamber 5 which are not communicated with each other. The side wall of the heat insulation box 1 is provided with two mounting holes which respectively correspond to the heat pump cavity 4 and the driving cavity 5. The heat exchanger 6 is fixedly arranged in the mounting hole. The joint of the mounting hole and the heat exchanger 6 is coated with a sealant.

As shown in fig. 2, a horizontally arranged conveyor belt 7 is installed in the carriage body 2. The conveying belts 7 are arranged in a staggered mode in the vertical direction. The embodiment has five layers, and the number of the transmission belts 7 can be increased or reduced according to the design requirement. As shown in fig. 3, the conveyor belt 7 is provided at one end with a driving assembly 8 for driving all the conveyor belts 7 to move. The driving assembly 8 comprises a plurality of speed reducing motors 9, the number of the speed reducing motors 9 is equal to that of the conveying belts 7, and each speed reducing motor 9 drives one conveying belt 7 to move.

As shown in fig. 2, the adjacent conveyor belts 7 are transported in opposite directions, and the feeding position of the uppermost conveyor belt 7 is located on the same side as the discharging position of the lowermost conveyor belt 7. The upper end of the carriage body 2 is provided with a feeding port 10 corresponding to the feeding end of the uppermost transmission belt 7. A strip-shaped narrow-mouth feed hopper 11 is fixedly arranged on the feed inlet 10. The heat insulation box 1 is penetrated through by a strip-shaped narrow-mouth feed hopper 11.

As shown in fig. 2, a material guiding plate 12 is disposed at the discharging end of the lowest conveyor belt 7, and the material guiding plate 12 is fixedly connected to the inner wall of the carriage 2. The material guide plate 12 is arranged obliquely downwards back to one end of the conveyor belt 7. The lower end of the box body 2 is provided with a discharge port 13 corresponding to the material guide plate 12, and the discharge port 13 is communicated with the outside of the heat insulation box 1. The inner wall of the compartment body 2 is provided with a collecting hopper 14, and the discharge hole 13 is positioned in the collecting hopper 14.

As shown in fig. 2, a diversion fan 15 is fixedly installed on one side of the inner wall of the compartment 2 opposite to the discharge port 13, and the diversion fan 15 is located on one side of the conveyor belt 7. As shown in fig. 1 and 2, a heating element 16, a draught fan 17 and an evaporator 18 are sequentially installed on the inner bottom surface of the compartment body 2. The heating element 16 comprises a heat pump 19 and a transducer 20, the transducer 20 being located inside the cabinet 2, and the transducer 20 being located at the end of the cabinet 2 opposite the outfeed 13. The heat pump 19 is located outside the car 2 and inside the heat pump chamber 4. As shown in fig. 3, a water discharge pipe 21 is connected to a liquid outlet of the evaporator 18, and the water discharge pipe 21 is inserted through the heat insulating box 1. A waste water tank 22 is arranged at one end of the water discharge pipe 21, which is opposite to the evaporator 18.

As shown in fig. 2, an air curtain plate 23 is fixedly arranged on the inner wall of the compartment 2 near the discharge port 13, and the air curtain plate 23 is obliquely arranged downwards towards one end of the conveyor belt 7. The side of the air curtain plate 23 back to the discharge port 13 and the side of the material guide plate 12 opposite to the discharge port 13 are positioned on the same plane. The end of the compartment body 2 far away from the discharge port 13 is provided with a partition plate 24, and the partition plate 24 is positioned at one end of the transmission belt 7 back to the discharge port 13. The partition plate 24 is arranged in an L shape, two ends of the partition plate 24 are respectively and fixedly connected to the side walls of two sides of the compartment body 2, and the partition plate 24 guides the airflow to the evaporator 18.

As shown in fig. 2, an exhaust duct 25 for exhausting air and a fresh air duct 26 for sucking air are arranged on the compartment body 2, the exhaust duct is located at the bottom end of the compartment body 2 back to the discharge port 13, and the fresh air duct 26 is located at the upper end of the compartment body 2 back to the discharge port 13. The fresh air pipe 26 and the exhaust pipe 25 are both provided with an on-off valve 27. As shown in fig. 4, an exhaust gas treatment tank 28 is connected to one end of the exhaust duct 25.

As shown in fig. 4, a baffle 29 is provided in the exhaust gas treatment tank 28, the baffle 29 divides the exhaust gas treatment tank 28 into a first chamber 30 and a second chamber 31, and the first chamber 30 is communicated with the exhaust duct 25. A condenser 32 and an induced draft fan 33 are sequentially arranged in the first cavity 30, and the condenser 32 is positioned on one side close to the exhaust pipe 25. A PM2.5 filter 34, a low-temperature plasma 35 and a photocatalytic exhaust gas processor 36 are sequentially arranged in the second cavity 31, and an air outlet of the photocatalytic exhaust gas processor 36 is communicated with an air outlet of the exhaust gas processing box 28. The air outlet of the induced draft fan 33 penetrates through the baffle 29, and the air outlet of the induced draft fan 33 faces the PM2.5 filter 34.

Before wet sludge enters the compartment body 2, the opening and closing valve 27 is closed to seal the compartment body 2. The heat pump 19 is activated to heat the air in the heat pump chamber 4. Then the heat in the hot air in the heat pump chamber 4 is transferred into the carriage body 2 through the transducer 20, so that the air in the carriage body 2 reaches 80-85 ℃.

Wet sludge enters the compartment body 2 from the strip-shaped narrow-mouth feed hopper 11 and is transported to and fro in the compartment body 2 along with the conveyor belt 7. At the moment, the diversion fan 15 drives the air to form heat flow along the length direction of the conveying belt 7, the sludge is heated and expanded, and the moisture in the sludge is diffused into the air and then is taken away by the heat flow.

The heat flow is guided by the partition plate 24 after flowing through the transmission belt 7, so that the heat flow with moisture flows to the evaporator 18, the temperature of the heat flow is reduced, the moisture in the heat flow is condensed, and the moisture is led out through the drain pipe 21, so that the total moisture in the compartment body 2 is reduced, and the sludge is dried.

The cooled air flow passes through the energy converter 20 under the action of the draught fan 17, so that the temperature of the air flow is increased, the air flow is changed into heat flow again and is increased to the front of the diversion fan 15, the heat flow flows along the length direction of the conveying belt 7 under the action of the diversion fan 15, and the circulation is performed, so that the sludge is completely dried.

The dried sludge is discharged into a collecting hopper 14 under the guiding action of a material guide plate 12 and then discharged from a discharge hole 13. If the temperature in the driving chamber 5 or the heat pump chamber 4 is too high, the corresponding heat exchanger 6 can be started to reduce the temperature.

When the sludge is not required to be treated again, the heat pump 19 and the driving assembly 8 are closed, and the opening and closing valve 27 is opened. The induced draft fan 33 works to pump the waste gas in the compartment body 2 into the waste gas treatment box 28, and then the fresh air enters the compartment body 2 from the fresh air pipe 26, so that no waste gas exists in the compartment body 2. The exhaust gas pumped into the exhaust gas treatment box 28 is cooled by a condenser 32, large particle impurities are filtered by a PM2.5 filter 34, low-temperature plasma 35 and a photocatalytic exhaust gas processor 36 are used for cracking and oxidizing toxic gas, so that the exhaust gas is non-toxic and harmless, and the treated exhaust gas is discharged.

Example two:

as shown in fig. 5, a sludge drying air source heat pump system includes the first embodiment, further includes a stirrer 37 for mixing dry sludge and wet sludge, a granulator 38 for granulating semi-dry sludge discharged from the stirrer 37, and a classifier 39 for classifying sludge particles. The discharge of the blender 37 and the inlet of the pelletizer 38 are connected by a hoist 43. The discharge opening of the granulator 38 and the feed opening of the classifier 39 are also connected by a hoist 43.

The screening machine 39 is a three-stage classifying screen, and can screen out sludge particles according to size. The screening machine 39 is provided with a first discharge port 40 for discharging small sludge particles, a second discharge port 41 for discharging large sludge particles and a third discharge port 42 for discharging sludge powder, the first discharge port 40 is connected with the feed port of the chamber body 2, the second discharge port 41 is connected with the feed port of the granulator 38, and the third discharge port 42 is connected with the feed port of the stirrer 37.

The larger the sludge particles, the greater its water content. The wet sludge is passed through the agitator 37 and agitated with the dry sludge, reducing the proportion of water contained in the wet sludge. And then granulating the wet sludge into sludge particles to disperse the wet sludge so that the wet sludge is easier to dry. The sludge granules with larger granules are sent back to the granulator 38 for granulation through the screening machine 39, so that the sludge granules entering the sludge dryer are not too large, and the sludge granules dried by the sludge dryer are all dried to the standard requirement. The sludge fines may be passed into the blender 37 to reduce the moisture content of the wet sludge.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides a sludge danger gas processing apparatus, includes the railway carriage or compartment body (2), be equipped with transmission band (7) that are used for transmitting mud in the railway carriage or compartment body (2), railway carriage or compartment body (2) upper end and lower extreme are equipped with feed inlet (10) and discharge gate (13) respectively, characterized by: the railway carriage or compartment body (2) are sealed setting, the relative feed inlet (10) one end of transmission band (7) is equipped with and is used for driving the air and form the water conservancy diversion fan (15) of thermal current, transmission band (7) lower extreme is close to water conservancy diversion fan (15) one end and is equipped with heating member (16) that are used for heating the air, heating member (16) are including heat pump (19) and transducer (20), transducer (20) are located railway carriage or compartment body (2), heat pump (19) are located outside railway carriage or compartment body (2), water conservancy diversion fan (15) one end is kept away from to transmission band (7) lower extreme is equipped with evaporimeter (18) that are arranged in retrieving waste water in the hot humid air, railway carriage or compartment body (2) inner wall is equipped with baffle (24) that are used for guiding the thermal current to evaporimeter (18) to water conservancy diversion fan (15) one side dorsad, be connected with drain pipe (21) on the liquid outlet of evaporimeter (18), be equipped with between evaporimeter ( (16) The box body (2) is provided with an exhaust pipe (25) for exhausting air and a fresh air pipe (26) for sucking air, the fresh air pipe (26) and the exhaust pipe (25) are both provided with an opening and closing valve (27), and one end of the exhaust pipe (25) is connected with a waste gas treatment box (28); the discharge port (13) is fixedly provided with a collecting hopper (14) at one end opposite to the heating element (16), and the discharge port (13) is positioned in the collecting hopper (14) and at the lower end of the collecting hopper (14); a condenser (32), an induced draft fan (33), a PM2.5 filter (34), a low-temperature plasma (35) and a photocatalytic waste gas processor (36) are sequentially arranged in the waste gas treatment box (28), and an air outlet of the photocatalytic waste gas processor (36) is provided with an air outlet pipe penetrating through the waste gas treatment box (28); an air outlet of the induced draft fan (33) faces the PM2.5 filter (34), a baffle (29) is arranged in the waste gas treatment box (28) to divide the waste gas treatment box (28) into a first cavity (30) and a second cavity (31), the first cavity (30) is used for placing a condenser (32) and the induced draft fan (33), and the air outlet of the induced draft fan (33) penetrates through the baffle (29); an air curtain plate (23) used for guiding heat flow passing through the heating element (16) to flow to the diversion fan (15) is arranged in the box body (2), and the discharge hole (13) is positioned on one side, back to the heating element (16), of the air curtain plate (23); conveying belt (7) are provided with a plurality of along vertical direction is crisscross, the lower extreme the discharge end of conveying belt (7) is equipped with stock guide (12), stock guide (12) are slope setting downwards towards discharge gate (13) one end, stock guide (12) relative discharge gate (13) one side and air curtain board (23) are located the coplanar to discharge gate (13) one side back to.

2. The device for treating sludge hazardous gas according to claim 1, wherein: the utility model discloses a heat pump air conditioning system, including railway carriage or compartment body (2), railway carriage or compartment body (2) are equipped with heat-insulating box (1) outward, the railway carriage or compartment body (2) are located heat-insulating box (1), heat pump (19) are located the railway carriage or compartment body (2) outward and are located heat-insulating box (1), heat-insulating box (1) is all worn to establish by drain pipe (21), exhaust pipe (25) and fresh air pipe (26).

3. The device for treating sludge hazardous gas according to claim 2, wherein: transmission band (7) one end is equipped with and is used for driving transmission band (7) pivoted drive assembly (8), be equipped with division board (3) in heat insulation box (1) and separate heat pump chamber (4) that are used for placing heat pump (19) and drive chamber (5) that are used for placing drive assembly (8) with heat insulation box (1), all be equipped with in heat pump chamber (4) and drive chamber (5) and be used for exchanging heat exchanger (6) with the external world, division board (3) are the heat insulating board.

4. The device for treating sludge hazardous gas according to claim 3, wherein: the compartment body (2), the partition plate (3) and the heat insulation box (1) are all made of hard polyurethane foaming color steel plates.

5. A sludge drying treatment system is characterized in that: the sludge-hazardous gas treatment device comprises a stirrer (37) for mixing dry sludge and wet sludge, a granulator (38) for granulating semi-dry sludge discharged from the stirrer (37), and a screening machine (39) for screening sludge particles, wherein a first discharge hole (40) for discharging small sludge particles and a second discharge hole (41) for discharging large sludge particles are formed in the screening machine (39), the first discharge hole (40) is connected with the compartment body (2), and the second discharge hole (41) is connected with a feed hole of the granulator (38).