CN216295660U - Oil smoke clean system - Google Patents

Abstract

The utility model relates to an oil fume purification system. The problem of current tobacco tar clarification plant mechanism unreasonable, cause the purification back flue gas not up to standard, lack recovery plant, cause the wasting of resources to and lack fire prevention and explosion protection facility, have the incident risk is solved. The system comprises a spraying, filtering and dehydrating device, a water vapor exchange device, a superconducting heat pipe white mist removing device, a high-voltage electrostatic tower and an oil-water separation device, wherein the superconducting heat pipe white mist removing device comprises a heat absorption part and a white removing part, the oil fume generating equipment is connected with the spraying, filtering and dehydrating device in a centralized manner through an air pipe, the spraying, filtering and dehydrating device, the heat absorption part, the water vapor exchange device, the high-voltage electrostatic tower and the white removing part are sequentially connected, the white removing part is connected with a smoke outlet, and the spraying, filtering and dehydrating device and the high-voltage electrostatic tower drain outlet are respectively connected to the oil-water separation device. The system has reasonable structure and powerful function, performs seven-stage treatment on the oil fume and the waste gas, and plays a good role in purification, so that the discharged gas reaches the concentration which is lower than the environmental protection regulation and allowed to be discharged.

Description

Oil smoke clean system

Technical Field

The utility model relates to the technical field of environment-friendly equipment, in particular to an oil fume purification system.

Background

A plurality of textile auxiliary agents and solvents are required to be added in the dyeing process of the cloth, and a large amount of organic compounds such as moisture, grease, solvents and the like carried by the cloth after dyeing and rinsing are heated and volatilized in a setting machine and are discharged with hot air to form waste gas. The waste gas contains fiber impurities of cloth, various gaseous or liquid organic matters, dyes, dye auxiliaries, lubricating oil and other substances, the impurities in the waste gas have great harm to human health and environment, and the waste gas needs to be purified before being discharged. At present, the structure of a general industrial oil fume purification system is not reasonable, so that the purification function is not complete, and finally discharged smoke can not reach the standard. And oil stains obtained by a plurality of industrial oil fume purification systems in the treatment process are not recycled, so that resource waste is caused. In addition, the oil fume purification system has explosion risks, and the common industrial oil fume purification system is lack of fireproof and explosion-proof facilities and has the risks of equipment burnout and safety accidents.

Disclosure of Invention

The utility model mainly solves the problems that the purified smoke does not reach the standard due to unreasonable mechanisms of the existing smoke purifying equipment, resources are wasted due to the lack of recovery equipment, and safety accident risks exist due to the lack of fireproof and explosion-proof facilities, and provides an oil fume purifying system.

The technical scheme adopted by the utility model for solving the technical problems is as follows: an oil fume purification system comprises a spray filter dehydration device, a water vapor exchange device, a superconducting heat pipe white mist removal device, a high-voltage static tower and an oil-water separation device, wherein the superconducting heat pipe white mist removal device comprises a heat absorption part and a white removal part;

the spray filtering and dewatering device comprises a tower body, wherein a perforated plate cylinder is arranged in the tower body, a spray pipe is arranged on the upper part of the perforated plate cylinder, and a dewatering mechanism is arranged on the upper part of the spray pipe.

The spray filtering and dehydrating device integrates the functions of filtering, spraying and dehydrating, integrates three originally dispersed devices, saves materials and space, and improves the purification efficiency of subsequent engineering. The independent pore plate cylinder is adopted for filtering, and the fiber impurities in the flue gas are subjected to water film filtration, so that the air pipe is in a clean state, absorbs grease and is cooled, the possibility of equipment ignition is greatly reduced, the ignition is avoided, and other equipment of the purification system is prevented from being affected, and the fireproof and explosion-proof effects are achieved. The heat absorption part is used for absorbing the heat of the smoke part. The water vapor exchange device is used for further cooling the smoke, so that the oil smoke molecules are condensed into larger particle groups. The high-voltage electrostatic tower captures oil smoke, the oil smoke is adsorbed by the anode tube under the continuous bombardment of cathode electrons, and meanwhile, water vapor particles evaporated on the grey cloth play a role in impacting oil smoke molecules, so that the purification efficiency is improved. The water vapor oil smoke particles flow downwards along the anode tube under the action of gravity, and play a positive role in self-cleaning of the anode tube, so that the service cycle is greatly prolonged, and the defects that the static tower is frequently cleaned and is very easy to ignite and burn are overcome. The white-removing part heats the passing flue gas, so that the flue gas rises to destroy the critical point of water vapor condensation, and finally the flue gas is discharged into the atmosphere. And oil and water generated by the spray filter dehydration device and the high-voltage electrostatic tower are discharged into an oil-water separation device for oil-water separation, waste oil is recovered, and sewage is discharged into a treatment plant. The system performs seven-level treatment of spraying, filtering, dehydrating, heat absorption and primary cooling, water vapor exchange, high-voltage electrostatic field spreading and white removal on the oil fume waste gas, plays a good role in purification, and enables the discharged gas to reach the concentration lower than the allowable discharge concentration of environmental protection regulations.

As a preferred scheme of the scheme, the perforated plate cylinder is a conical cylinder, a plurality of filter holes are uniformly formed in the wall of the perforated plate cylinder, and the opening edge of the perforated plate cylinder is fixed with the inner wall of the tower body. The pore plate cylinder in the spray filtration dehydration device is used for filtering the flue gas, and the flue gas filters impurities such as part of fluff when passing through the filter pores. The design of a pore plate cylinder is conical, the contact area is increased, the flue gas is convenient to gather into the pore plate cylinder, and the conical cylinder enables the sprayed water energy to scour the inner wall and clean the pore plate cylinder.

As an optimal scheme of above-mentioned scheme, the shower is the ring pipeline, has seted up a plurality of holes that spray on the shower, and the shower is located orifice plate section of thick bamboo opening upper portion, and shower one side is provided with the mount, and the mount is fixed with tower body (1) inner wall, and the shower passes through the drinking-water pipe and is connected to the storage water tank. Spray pipe is the annular in this scheme, sprays the hole and sets up in spray pipe inboard or bottom, sprays the hole orientation and forms the water curtain on a hole plate section of thick bamboo towards a hole plate section of thick bamboo inner wall, the water that sprays, absorbs pollutant in the flue gas. The spray pipe is fixed with the inner wall of the tower body through a fixing frame. The water storage tank stores spraying water, a water pump is adopted to pump water into the water pumping pipe, and the water pumping pipe conveys the water into the spraying pipe for spraying.

As an optimal scheme of above-mentioned scheme, dewatering mechanism includes along the solid fixed ring that the tower body inner wall set up, and even interval is provided with a plurality of boards that get rid of water on solid fixed ring, gets rid of the board and inclines towards the tower body inner wall along clockwise or anticlockwise, is provided with the fender lid on getting rid of the board, it has the clearance to keep off between lid edge and the tower body inner wall. The dehydration mechanism is used for dehydrating the flue gas, and the flue gas gets into from getting into in the space between the board of getting rid of, reaches the afterbody of getting rid of the board of getting rid of through the clearance, by keeping off the clearance between lid and the tower body and upwards discharging, and the flue gas has collided the board of getting rid of at this ascending in-process to through physical action such as condensation, convection current, backward flow, make the vapor condensation in the flue gas, drip, reach the effect of dehydration. Wherein the water throwing plate is inclined towards the inner wall of the tower body, and the water throwing plate is inclined along the same clockwise or anticlockwise direction. The water throwing plate is located on a radial line from one end of the water throwing plate close to the inner wall of the tower body to the center of the tower body, and an included angle is formed between the water throwing plate and the radial direction. Set up the board angle of throwing water for the flue gas that passes through can rotate, has a centripetal force, and the droplet mass ratio of vapor is bigger, can get rid of when rotatory on the board of throwing water, gathers then flows down on the board of throwing water, rather than taking out along with the flue gas together, reaches the purpose of dehydration.

As a preferable scheme of the above scheme, the superconducting heat pipe white mist removing device includes a box body, a partition plate is arranged in the box body to divide the box body into the heat absorbing portion and the white mist removing portion, a plurality of superconducting heat pipes are inserted on the partition plate, two ends of each superconducting heat pipe respectively extend into the heat absorbing portion and the white mist removing portion, heat conducting liquid is arranged in each superconducting heat pipe, and fins are arranged on the outer surfaces of the superconducting heat pipes. The heat absorption is just cold and take off white two processing structure designs on a device in this scheme, separates into with the box and takes off white portion and two parts about the heat absorption portion, and the superconductive heat pipe both ends are located two parts respectively, and the heat conduction that superconductive heat pipe absorbed in the heat absorption portion heats the flue gas to taking off in white portion, and reuse the heat has practiced thrift energy resource consumption. The superconducting heat pipes can be connected together, the lower ends of the superconducting heat pipes are respectively connected with the input end of the heat conducting liquid pipe, and the upper ends of the superconducting heat pipes are connected with the output end of the heat conducting liquid pipe, so that the heat conducting liquid circularly flows from small to upper in the superconducting heat pipes, and heat is conducted to the whitening part through the heat absorbing part. The fins are arranged on the surface of the superconducting heat pipe, so that the contact area is increased, and heat absorption and heat release can be better performed.

As an optimal scheme of above-mentioned scheme, oil water separator includes the collecting box, set up the baffle in the collecting box, separate into waste oil collection portion and precipitation portion two parts with the collecting box, be provided with the rotatory disc of motor drive above precipitation portion, the latter half of disc stretches into the precipitation portion within range, it is provided with the frizing to hug closely the disc in the both sides of disc, the frizing is fixed on the baffle, the frizing is set up to waste oil collection portion one side downward sloping by precipitation portion, the frizing downside is outwards turned over and is rolled over, the edge of turning over a portion is provided with the baffle, form between frizing and baffle and connect the oil groove, the oil groove extends to a waste oil collection portion top. This scheme oil water separator separates the profit of collection, enters into the precipitate portion after the profit is collected, deposits in the precipitate portion, and the upper strata is the greasy dirt lower floor and is sewage after the sediment. The disc is located the precipitate, and disc the latter half stretches into the precipitate within range, disc the latter half submergence is in the profit promptly, through rotating the disc, can adhere the greasy dirt on the side of disc, the scraper position department is changeed to at the disc, the greasy dirt on the disc side is scraped down to the scraper, the greasy dirt is flowing down along the scraper and is entering into and connect the oil groove, connect oil groove and scraper to be integrative, also to waste oil collection portion slope, the greasy dirt is along connecing the oil groove to waste oil collection portion side stream, enter into the oil collecting tank in, the oil collecting tank extends to waste oil collection portion top, oil collecting tank front end opening, the greasy dirt drips to waste oil collection portion along the opening in, so accomplished water oil water separating. And discharging sewage below the interior of the settling part to a sewage treatment plant for treatment, and recycling the collected oil stain.

As an optimal scheme of the scheme, a flame ion monitor and a temperature monitor are arranged in an air pipe connected with the oil smoke generating equipment, a fireproof door is arranged at the front end of the connection between the air pipe and the spraying, filtering and dehydrating device, an exhaust door is arranged on the air pipe on one side, close to the oil smoke generating equipment, of the fireproof door, the system comprises a controller, the flame ion monitor and the temperature monitor are respectively connected with the controller, and the controller is in control connection with the fireproof door and the exhaust door. This scheme has set up dual monitoring to the system, sets up flame ion monitor and temperature monitor in the tuber pipe of oil smoke production facility department, detects catching fire and temperature, when detecting flame and temperature higher, control is closed and is prevented fire door and in time open the air exit door, puts out a fire simultaneously, has protected the safety of hou mian steam exchange device, high-voltage static tower like this, avoids causing the incident of endangering lives and property such as burning out, bursting.

As an optimal scheme of the scheme, the smoke outlet is provided with a VOCs monitoring device, and the VOCs monitoring device is connected with the remote monitoring end through a network. Set up VOCs monitoring devices on the outlet flue and monitor exhaust flue gas to send data to remote monitoring end through the network, receive by relevant personnel and environmental protection department and monitor.

As a preferable scheme of the above scheme, a condenser is arranged in the water vapor exchange device, and the condenser is connected to the cooling tower through a pipeline. In the scheme, the condenser is internally provided with the coolant, and the coolant takes away heat in the water-steam exchange device when passing through the condenser, so that the smoke is cooled, and oil smoke molecules are condensed into larger particle groups. The coolant enters the cooling tower through the pipeline for cooling, and then enters the condenser after cooling, and the circulation is performed to cool the flue gas.

The utility model has the advantages that:

1. the system has reasonable structure and powerful functions, and performs seven-level treatment of spraying, filtering, dewatering, heat absorption and primary cooling, water vapor exchange, high-voltage electrostatic field spreading and white removal on the oil fume waste gas, so that a good purification effect is achieved, and the discharged gas reaches the concentration which is lower than the environmental protection regulation and allowed to be discharged.

2. The spray filtering and dehydrating device integrates the functions of filtering, spraying and dehydrating, integrates three originally dispersed devices, saves materials and space, and improves the purification efficiency of subsequent engineering. The independent pore plate cylinder is adopted for filtering, and the fiber impurities in the flue gas are subjected to water film filtration, so that the air pipe is in a clean state, absorbs grease and is cooled, the possibility of equipment ignition is greatly reduced, the ignition is avoided, and other equipment of the purification system is prevented from being affected, and the fireproof and explosion-proof effects are achieved.

3. The oil-water separation device can separate oil from water, and waste oil is recycled, so that the energy utilization efficiency is improved.

4. The system is provided with double monitoring, the ignition and temperature are detected, when flame and temperature are detected to be high, the fire door is controlled to be closed and the exhaust door is timely opened, and meanwhile, fire is extinguished, so that the safety of a water vapor exchange device and a high-voltage static tower behind the fire door is protected, and accidents such as burning, bursting and the like which endanger lives and properties are avoided.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a superconducting heat pipe white mist removing device according to the present invention;

FIG. 3 is a schematic view of an oil-water separator according to the present invention;

FIG. 4 is a schematic view of a spray filtration dehydration unit according to the present invention;

FIG. 5 is a schematic view of a water slinger of the present invention;

fig. 6 is a schematic view of a shower according to the present invention.

1-spraying, filtering and dehydrating device 2-water vapor exchange device 3-superconducting heat pipe white mist removing device 4-high-voltage static tower 5-oil-water separating device 6-heat absorbing part 7-white removing part 8-tower body 9-perforated plate cylinder 10-spraying pipe 11-spraying hole 12-fixed frame 13-fixed ring 14-water throwing plate 15-baffle cover 16-gap 17-box 18-superconducting heat pipe 19-collecting box 20-waste oil collecting part 21-precipitation part 22-disc 23-oil scraping plate 24-oil receiving groove 25-oil collecting groove 26-flame ion monitor 27-temperature detector 28-fire door 29-exhaust door 30-cooling tower.

Detailed Description

The technical solution of the present invention is further described below by way of examples with reference to the accompanying drawings.

Example (b):

the oil fume purification system of the present embodiment, as shown in fig. 1, includes a spray filtration dehydration device 1, a water vapor exchange device 2, a superconducting heat pipe white mist removal device 3, a high-voltage electrostatic tower 4, and an oil-water separation device 5. The superconducting heat pipe white mist removing device comprises a heat absorption part 6 and a white removing part 7, the oil fume generating equipment is connected with a spraying and filtering dehydration device in a centralized mode through an air pipe, the spraying and filtering dehydration device, the heat absorption part, a water vapor exchange device, a high-voltage static tower and the white removing part are connected in sequence, the white removing part is connected with a smoke outlet, and the spraying and filtering dehydration device and the high-voltage static tower drain outlet are connected to an oil-water separation device respectively. The spray filtering and dehydrating device filters, sprays and dehydrates the oil smoke. The heat absorption part is used for absorbing the heat of the smoke part. The water vapor exchange device is used for further cooling the smoke, so that the oil smoke molecules are condensed into larger particle groups. The high-voltage electrostatic tower captures oil smoke, the oil smoke is adsorbed by the anode tube under the continuous bombardment of cathode electrons, and meanwhile, water vapor particles evaporated on the grey cloth play a role in impacting oil smoke molecules, so that the purification efficiency is improved. The water vapor oil smoke particles flow downwards along the anode tube under the action of gravity, and play a positive role in self-cleaning of the anode tube, so that the service cycle is greatly prolonged, and the defects that the static tower is frequently cleaned and is very easy to ignite and burn are overcome. The white-removing part heats the passing flue gas, so that the flue gas rises to destroy the critical point of water vapor condensation, and finally the flue gas is discharged into the atmosphere. The system performs seven-level treatment of spraying, filtering, dewatering, heat absorption primary cooling, water vapor exchange, high-voltage electrostatic field spreading and white removal on the oil fume waste gas, plays a good role in purification, and enables the discharged gas to reach the concentration lower than the allowable discharge concentration of environmental protection regulations.

As shown in fig. 3, the spray filtration dehydration device comprises a tower body 8, a perforated plate cylinder 9 is arranged in the tower body, a spray pipe 10 is arranged at the upper part of the perforated plate cylinder, and a dehydration mechanism is arranged at the upper part of the spray pipe. The perforated plate cylinder is a conical cylinder, a plurality of filter holes are uniformly formed in the wall of the perforated plate cylinder, and the opening edge of the perforated plate cylinder is fixed with the inner wall of the tower body 8. The independent pore plate cylinder is adopted for filtering, and the fiber impurities in the flue gas are subjected to water film filtration, so that the air pipe is in a clean state, absorbs grease and is cooled, the possibility of equipment ignition is greatly reduced, the ignition is avoided, and other equipment of the purification system is prevented from being affected, and the fireproof and explosion-proof effects are achieved. As shown in fig. 6, the spray pipe 10 is an annular pipeline, a plurality of spray holes are formed in the spray pipe, the spray pipe is located at the upper part of the opening of the perforated plate cylinder 9, a fixing frame 12 is arranged on one side of the spray pipe, the fixing frame is fixed with the inner wall of the tower body 8, and the spray pipe is connected to the water storage tank through a water pumping pipe. As shown in fig. 4 and 5, the dewatering mechanism comprises a fixing ring 13 arranged along the inner wall of the tower body, a plurality of water throwing plates 14 are arranged on the fixing ring at even intervals, the water throwing plates incline towards the inner wall of the tower body along the clockwise direction or the anticlockwise direction, a blocking cover 15 is arranged on the water throwing plates, the blocking cover is umbrella-shaped, and a gap 16 is arranged between the edge of the blocking cover and the inner wall of the tower body. The flue gas gets into from getting into in the space between the board of getting rid of water, reaches the afterbody of getting rid of the water board through the clearance, upwards discharges by the clearance between fender cover and the tower body, and the flue gas has collided the board of getting rid of water at this ascending in-process to through physical action such as condensation, convection current, backward flow, make the steam condensation in the flue gas, drip, reach the effect of dehydration. Wherein the water throwing plate is inclined towards the inner wall of the tower body, and the water throwing plate is inclined along the same clockwise or anticlockwise direction. The water throwing plate is located on a radial line from one end of the water throwing plate close to the inner wall of the tower body to the center of the tower body, and an included angle is formed between the water throwing plate and the radial direction. Set up the board angle of throwing water for the flue gas that passes through can rotate, has a centripetal force, and the droplet mass ratio of vapor is bigger, can get rid of when rotatory on the board of throwing water, gathers then flows down on the board of throwing water, rather than taking out along with the flue gas together, reaches the purpose of dehydration.

As shown in fig. 2, the superconducting heat pipe white mist removing device 3 comprises a box body 17, a partition plate is arranged in the box body to divide the box body into a heat absorption part 6 and a white removing part 7, a plurality of superconducting heat pipes 18 are inserted on the partition plate, two ends of each superconducting heat pipe respectively extend into the heat absorption part and the white removing part, heat conducting liquid is arranged in each superconducting heat pipe, and fins are arranged on the outer surfaces of the superconducting heat pipes.

A condenser is arranged in the water vapor exchange device and is connected to the cooling tower 30 through a pipeline. The condenser is internally provided with a coolant which takes away heat in the water-steam exchange device when passing through, so that the smoke is cooled, and the oil smoke molecules are condensed into larger particle groups. The coolant enters the cooling tower through the pipeline for cooling, and then enters the condenser after cooling, and the circulation is performed to cool the flue gas.

As shown in fig. 3, the oil-water separation device includes a collection box 19, a partition board is arranged in the collection box, the collection box is divided into two parts, namely a waste oil collection part 20 and a precipitation part 21, a rotary disc 22 driven by a motor is arranged above the precipitation part, the lower half part of the disc extends into the precipitation part range, the disc is tightly attached to two sides of the disc to be provided with an oil scraping plate 23, the oil scraping plate is fixed on the partition board, the oil scraping plate is downwards inclined towards one side of the waste oil collection part from the precipitation part, the lower side of the oil scraping plate is outwards turned over, a baffle is arranged at the edge of the turned part, an oil receiving groove 24 is formed between the oil scraping plate and the baffle, the front end of the oil receiving groove is connected with an oil collecting groove 25, and the oil collecting groove extends to the upper part of the waste oil collection part. The oil water enters a precipitation part after being collected, precipitation is carried out in the precipitation part, and the upper layer is oil stain and the lower layer is sewage after precipitation. The disc is located the precipitation, and disc the latter half submergence of disc in the profit, through rotating the disc, can adhere to the greasy dirt on the side of disc, the frizing position department is changeed to the disc, the greasy dirt on the disc side is scraped down to the frizing, the greasy dirt is along entering into and connect the oil groove under the frizing, connect oil groove and frizing integrative, also to waste oil collection portion slope, the greasy dirt is along connecing the oil groove to waste oil collection portion one side stream, enter into the oil collecting tank in, the oil collecting tank extends to waste oil collection portion top, oil collecting tank front end opening, the greasy dirt drips to waste oil collection portion in along the opening, so accomplished water oil water separating. And discharging sewage below the interior of the settling part to a sewage treatment plant for treatment, and recycling the collected oil stain.

As shown in figure 1, a flame ion monitor 26 and a temperature monitor 27 are arranged in an air pipe connected with the oil smoke generating equipment, a fireproof door 28 is arranged at the front end of the connection between the air pipe and the spraying, filtering and dehydrating device, an exhaust door 29 is arranged on the air pipe at one side of the fireproof door close to the oil smoke generating equipment, the system comprises a controller, the flame ion monitor and the temperature monitor are respectively connected with the controller, and the controller is in control connection with the fireproof door and the exhaust door. The system is provided with dual monitoring, a flame ion monitor and a temperature monitor are arranged in an air pipe at the oil smoke generating equipment, ignition and temperature are detected, when flame and temperature are detected to be higher, a fireproof door is controlled to be closed and an exhaust door is opened in time, and meanwhile, fire is extinguished, so that the safety of a water vapor exchange device and a high-voltage static tower at the back is protected, and safety accidents such as burning, bursting and the like which endanger lives and properties are avoided.

In addition, be provided with VOCs monitoring devices on the outlet flue, VOCs monitoring devices passes through the network and is connected with the remote monitoring end. VOCs monitoring devices monitors the exhaust flue gas to send data to remote monitoring end through the network, receive by relevant personnel and environmental protection department and monitor.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although the terms of spray filtration dehydration means, water vapor exchange means, superconducting heat pipe de-whiting means, high voltage electrostatic towers, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (9)

1. An oil smoke clean system which characterized in that: the device comprises a spray filter dehydration device (1), a water vapor exchange device (2), a superconducting heat pipe white mist removal device (3), a high-voltage electrostatic tower (4) and an oil-water separation device (5), wherein the superconducting heat pipe white mist removal device comprises a heat absorption part (6) and a white removal part (7), oil fume generation equipment is intensively connected with the spray filter dehydration device through an air pipe, the spray filter dehydration device, the heat absorption part, the water vapor exchange device, the high-voltage electrostatic tower and the white removal part are sequentially connected, the white removal part is connected with a fume outlet, and the spray filter dehydration device and the high-voltage electrostatic tower drain outlet are respectively connected to the oil-water separation device;

the spray filtration dehydration device comprises a tower body (8), a perforated plate cylinder (9) is arranged in the tower body, a spray pipe (10) is arranged on the upper part of the perforated plate cylinder, and a dehydration mechanism is arranged on the upper part of the spray pipe.

2. The lampblack purification system as claimed in claim 1, wherein the perforated plate cylinder (9) is a conical cylinder, a plurality of filtering holes are uniformly formed in the wall of the perforated plate cylinder, and the opening edge of the perforated plate cylinder is fixed with the inner wall of the tower body (8).

3. The lampblack purification system as claimed in claim 1, wherein the spray pipe (10) is a circular pipeline, a plurality of spray holes are formed in the spray pipe, the spray pipe is located at the upper part of the opening of the perforated plate cylinder (9), a fixing frame (12) is arranged on one side of the spray pipe and fixed with the inner wall of the tower body (8), and the spray pipe is connected to the water storage tank through a water pumping pipe.

4. An oil smoke purification system according to claim 1, characterized in that the dehydration mechanism comprises a fixed ring (13) arranged along the inner wall of the tower body, a plurality of water-throwing plates (14) are arranged on the fixed ring at regular intervals, the water-throwing plates are inclined towards the inner wall of the tower body along the clockwise or counterclockwise direction, a baffle cover (15) is arranged on the water-throwing plates, and a gap (16) is arranged between the edge of the baffle cover and the inner wall of the tower body.

5. A system for purifying cooking fumes according to any one of claims 1 to 4, characterized in that the superconducting heat pipe white mist removing device (3) comprises a box body (17), a partition is arranged in the box body to divide the box body into the heat absorbing part (6) and the white mist removing part (7), a plurality of superconducting heat pipes (18) are inserted on the partition, two ends of each superconducting heat pipe respectively extend into the heat absorbing part and the white mist removing part, heat conducting liquid is arranged in each superconducting heat pipe, and fins are arranged on the outer surfaces of the superconducting heat pipes.

6. An oil-fume purification system according to any one of claims 1 to 4, characterized in that the oil-water separation device comprises a collection box (19), a partition is arranged in the collection box to separate the collection box into two parts of a waste oil collection part (20) and a precipitation part (21), a disc (22) driven by a motor to rotate is arranged above the precipitation part, the lower half part of the disc extends into the precipitation part, oil scraping plates (23) are arranged on two sides of the disc in a manner of being tightly attached to the disc, the oil scraping plates are fixed on the partition, the oil scraping plates are arranged in a manner of inclining downwards from the precipitation part to one side of the waste oil collection part, the lower sides of the oil scraping plates are turned outwards, baffle plates are arranged on the edges of the turning parts, an oil receiving groove (24) is formed between the oil scraping plates and the baffle plates, an oil collecting groove (25) is connected to the front ends of the two oil receiving grooves, and the oil collecting groove extends to the upper part of the waste oil collection part.

7. The lampblack purification system as claimed in any one of claims 1 to 4, characterized in that a flame ion monitor (26) and a temperature monitor (27) are arranged in a wind pipe connected with the lampblack generation device, a fire door (28) is arranged at the front end of the wind pipe connected with the spray filter dehydration device (1), an exhaust door (29) is arranged on the wind pipe at the side of the fire door close to the lampblack generation device, the system comprises a controller, the flame ion monitor and the temperature monitor are respectively connected with the controller, and the controller is in control connection with the fire door and the exhaust door.

8. The lampblack purification system as claimed in any one of claims 1 to 4, wherein VOCs monitoring devices are arranged on the smoke outlet and connected with a remote monitoring end through a network.

9. A system according to any of claims 1 to 4, characterized in that a condenser is arranged in the water vapour exchange device, which condenser is connected to the cooling tower (30) by means of a pipe.

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