CN108525410B - Device and method for collecting dust mist - Google Patents
Device and method for collecting dust mist Download PDFInfo
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- CN108525410B CN108525410B CN201810597164.5A CN201810597164A CN108525410B CN 108525410 B CN108525410 B CN 108525410B CN 201810597164 A CN201810597164 A CN 201810597164A CN 108525410 B CN108525410 B CN 108525410B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/444—Auxiliary equipment or operation thereof controlling filtration by flow measuring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/72—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with backwash arms, shoes or nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/74—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element
- B01D46/78—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element involving centrifugal forces
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of gas purification, in particular to a device and a method for collecting dust and mist, wherein the device comprises a collecting tank body and a collecting tank, the collecting tank is arranged in the collecting tank body, and an air inlet pipe sequentially penetrates through the collecting tank body and the bottom of the collecting tank to enter the collecting tank; an air inlet hole is formed in an air inlet shaft tube in the collecting tank; cylindrical filter screens are arranged in the collecting tank at intervals by taking the air inlet shaft tube as the center; an exhaust hole is arranged at the top of the collecting tank and corresponds to the position of the peripheral cylindrical filter screen; an exhaust pipe is arranged at the top of the collecting tank body; the top of the collecting tank body is connected with the collecting tank through a rotating shaft connected with a motor; drain holes are formed in the periphery of the collecting tank, and a drain pipe is arranged at the bottom of the collecting tank body. The invention purifies dust mist and waste gas by utilizing the silk screen and the activated carbon fiber arranged in the collecting tank and collects corresponding water and tiny dust, thereby solving the technical problem of separating the water and the tiny dust from the gas.
Description
Technical Field
The invention relates to the technical field of gas purification, in particular to a device and a method for collecting dust mist.
Background
The water vapor and the white fog generated during the operation of the desulfurization and denitrification, wet dust removal, wet electrostatic demister (dust) and the like in power plants, steel plants, chemical industry, building materials and the like cause the waste of water resources and cause great pollution to the air environment. At present, the existing demisting technologies are also imperfect, and blockage and short-circuit discharge phenomena occur frequently in use, so that the discharge effect is unstable and the efficiency is low; the operation and maintenance cost is high, and the service life is short, so that economic loss is brought to enterprises.
Disclosure of Invention
The invention aims to provide a device and a method for collecting dust mist, which can purify dust mist and waste gas by utilizing a silk screen and activated carbon fibers arranged in a collecting tank and collect corresponding dust mist, and solve the technical problem of separation of water, tiny dust and gas.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
the device for collecting dust and mist is characterized by comprising a collecting tank body and a collecting tank, wherein the collecting tank is arranged in the collecting tank body, and an air inlet pipe sequentially penetrates through the collecting tank body and the bottom of the collecting tank to enter the collecting tank; the air inlet pipe comprises an air inlet guide pipe arranged outside the collecting tank body and an air inlet shaft pipe arranged inside the collecting tank body; an air inlet hole is formed in an air inlet shaft tube in the collecting tank; cylindrical filter screens are arranged in the collecting tank at intervals by taking the air inlet shaft tube as the center; an exhaust hole is arranged at the top of the collecting tank and corresponds to the position of the peripheral cylindrical filter screen; an exhaust pipe is arranged at the top of the collecting tank body; the top of the collecting tank body is connected with the collecting tank through a rotating shaft connected with a motor; drain holes are formed in the periphery of the collecting tank, and a drain pipe is arranged at the bottom of the collecting tank body.
Further, the cylindrical filter screen is formed by sequentially attaching a screen and activated carbon fibers from inside to outside.
Further, the cylindrical filter screen comprises a cylindrical screen arranged inside the collecting tank and activated carbon fibers arranged at an upper part layer of the cylindrical screen.
Further, a water blocking plate is arranged on the inner wall of the collecting tank body.
Further, the water-blocking plate is a curve water-blocking plate.
Further, back flushing spray heads are arranged on the top and the surrounding inner walls of the collecting tank body, and the back flushing spray heads are connected with a back flushing pump.
Further, the device also comprises an intelligent control system, wherein the intelligent control system comprises an upper computer, a drainage control system and a back flushing control system, wherein the drainage control system and the back flushing control system are respectively connected with the upper computer.
Further, the drainage control system is respectively connected with the motor and the gravity sensor, and the gravity sensor is arranged on a spring on the air inlet shaft tube between the collecting tank body and the collecting tank.
Further, the back flushing control system is respectively connected with a gas flow detector arranged on the exhaust pipe, a back flushing pump, an exhaust electromagnetic valve arranged on the exhaust pipe, an air inlet electromagnetic valve arranged on the air inlet pipe and a dust collection electromagnetic valve arranged on the dust collection pipe.
Further, two collection tanks which work alternately are arranged in the collection tank body, the two collection tanks are respectively connected with two air inlet branch pipes, and air inlet valves are respectively arranged on the two air inlet branch pipes.
A method of collecting dust mist comprising the steps of:
waste gas enters the collecting tank through an air inlet hole on the air inlet shaft tube;
a cylindrical filter screen is arranged around an air inlet shaft tube in the collecting tank, and the air is filtered by each layer of cylindrical filter screen and then sequentially discharged out of the collecting tank body through an air outlet hole arranged on the collecting tank and an exhaust pipe arranged on the collecting tank body, wherein the air outlet hole is corresponding to the outermost layer of cylindrical filter screen;
when the weight of the collecting tank is detected to reach a starting value, the motor is controlled to drive the collecting tank to rotate, collected moisture can be discharged out of the collecting tank through drain holes around the collecting tank under the action of centrifugal force, and the collected moisture is collected through a drain pipe arranged at the bottom of the collecting tank body;
when the weight of the collection tank is detected to reach a stop value, the motor is controlled to stop driving the collection tank to rotate.
Further, the method for collecting dust mist further comprises the following steps:
when the flow in the exhaust pipe is detected to be reduced to an abnormal flow value, controlling the backwash pump to supply water to the backwash nozzle to flush the collection tank;
when the weight of the collection tank is detected to reach a starting value, controlling a motor to drive the collection tank to rotate and collect water;
when the weight of the collection tank is detected to reach a stop value, controlling the motor to stop driving the collection tank to rotate;
and (5) suspending to collect the weight data of the collection tank, closing the air inlet pipeline and the air outlet pipeline, and collecting the dust particles in the tank.
The invention has the following beneficial effects:
1. the invention provides a dust and mist collecting device, which takes an air inlet shaft tube of waste gas as a center, and the air inlet shaft tube is arranged at intervals in a layered manner, the air inlet shaft tube is surrounded by the air inlet shaft tube layer by utilizing the air inlet tube, the air entering through the air inlet hole of the air inlet shaft tube is filtered for multiple times through the air inlet tube, and the filtered air is discharged through an exhaust hole at the top of a collecting tank body after passing through the air inlet tube layer by layer of the air inlet tube, so that the waste gas can be filtered more thoroughly.
2. The invention can drive the collecting tank to rotate through the motor, and drain the moisture in the collecting tank under the action of centrifugal force, thereby effectively filtering and collecting the moisture carried in the gas and preventing the blockage.
3. According to the invention, after the flow of the exhaust pipe is reduced to an abnormal flow value, the backwash pump is used for supplying water to the backwash spray head to flush the collection tank, so that dust carried in gas adsorbed in the collection tank can be cleaned and discharged out of the collection tank, and the dust carried in the gas can be effectively collected and prevented from being blocked.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of a modified structure of the cylindrical filter screen of the present invention;
FIG. 3 is a schematic diagram of the connection of the host computer to the drainage control system and the backwash control system of the present invention.
In the figure: 1-collecting tank body, 2-air inlet conduit, 3-inlet port, 4-water-blocking plate, 5-back flush shower nozzle, 6-water inlet, 7-drain valve, 8-motor, 9-collecting tank, 10-activated carbon fiber, 11-silk screen, 12-air inlet shaft tube, 13-spring, 14-gravity sensor, 15-drainage control system, 16-outlet duct, 17-flow detector, 18-back flush pump, 19-dust absorption solenoid valve, 20-air inlet solenoid valve, 21-air outlet solenoid valve, 22-back flush control system, 23-dust collection tank, 24-water collection tank, 25-host computer, 26-drain pipe, 27-dust collection tube.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and accompanying drawings, and it should be noted that embodiments of the present invention and features of the embodiments may be combined without conflict, and the scope of the present invention is not limited thereto.
As shown in fig. 1 and 2, the device for collecting dust and mist comprises a collecting tank body 1 and a collecting tank 9, wherein the collecting tank 9 is arranged inside the collecting tank body 1, and an air inlet pipe sequentially penetrates through the bottoms of the collecting tank body 1 and the collecting tank 9 to enter the collecting tank 9; the air inlet pipe comprises an air inlet conduit 2 arranged outside the collecting tank body 1 and an air inlet shaft pipe 12 arranged between the collecting tank body 1 and the collecting tank 9; an air inlet hole 3 is arranged on an air inlet shaft tube 12 in the collecting tank 9; cylindrical filter screens are arranged in the collecting tank 9 at intervals by taking the air inlet shaft tube 12 as the center; an exhaust hole is arranged at the top of the collecting tank 9 and corresponds to the position of the peripheral cylindrical filter screen; an exhaust pipe 16 is arranged at the top of the collecting tank body 1; the top of the collecting tank body 1 is connected with the collecting tank 9 through a rotating shaft connected with a motor 8; drain holes are formed around the collecting tank 9, and a drain pipe 26 is formed at the bottom of the collecting tank body 1.
The dust fog and the waste gas sequentially enter the collecting tank 9 through the air inlet pipe 2 and the air inlet shaft pipe 12 and are treated by the cylindrical filter screen, and the treated gas sequentially passes through the air outlet hole of the collecting tank 9 and the air outlet pipe 16 of the collecting tank body 1 to be discharged.
Can start motor 8 drive collection jar 9 rotation as required, discharge the moisture in the collection jar 9 under the effect of centrifugal force, can effectually collect the moisture that carries in the gas and prevent the emergence of jam.
Preferably, as shown in fig. 1, the cylindrical filter screen is formed by sequentially attaching the screen 11 and the activated carbon fiber 10 from inside to outside, and because the exhaust hole is arranged at the top position of the collecting tank 9 corresponding to the outer cylindrical filter screen, the design of the structure can effectively filter moisture and dust once when the gas passes through one layer of the cylindrical filter screen, the moisture and dust in the gas can be filtered more thoroughly, the resource recycling is achieved, and the exhausted gas is prevented from polluting the air.
Preferably, as shown in fig. 2, the cylindrical filter net is a net 11 disposed inside the collection tank 9 and an activated carbon fiber 10 is disposed at an upper portion layer of the net 11. The design of this structure can make gaseous moisture that carries in filtering waste gas through layer upon layer silk screen, needs to pass through layer upon layer activated carbon fiber when gaseous upward movement's in-process, can carry out effective filtration to the dust that carries in the gas, reaches the resource and recycles to prevent exhaust gas polluted air.
Preferably, a water blocking plate 4 is arranged on the inner wall of the collecting tank body 1. The water blocking plate 4 is a curve water blocking plate. The design of the curve water-blocking plate can well collect the water thrown out of the collecting tank 9.
Preferably, a spring 13 is provided on the intake shaft tube 12 between the collecting tank body 1 and the collecting tank 9, a gravity sensor 14 is provided on the spring 13, the gravity sensor 14, the motor 8 and the drain valve 7 are respectively connected with a drain control system 15, the drain control system 15 is connected with an upper computer 25, as shown in fig. 3, that is, the drain control system 15 is equivalent to a lower computer here, and is used for collecting signals of engineering equipment and controlling the running state of the equipment. The drain control system 15 may select a PLC. The spring adopts a compression spring, and can play a self-resetting role when the weight of the collecting tank 9 is reduced by weight.
The gravity sensor 14 transmits the acquired data to the drainage control system 15, and the compression spring 13 is compressed when the weight of the moisture and dust absorbed by the wire mesh 11 and the activated carbon fiber 10 in the collection tank 9 reaches a start value. After the drainage control system 15 collects the weight signal of the gravity sensor 14, the drainage control system 15 drives the collection tank 9 to rotate by utilizing the motor 8, and adsorbed fine dust and water drops are thrown onto the water blocking plate 4 by centrifugal force and naturally sink to the bottom of the collection tank body 1 under the action of the centrifugal force, so that the drainage valve 7 on the drainage pipe 26 is controlled to be opened to drain the collected water into the water collection tank 24; the treated gas is sequentially discharged from the exhaust hole and the exhaust pipe 16. Preferably, the drain valve 7 is an automatic drain valve or a drain solenoid valve, and the drain control system 15 can control the on-off of the drain solenoid valve to realize the function of timing drainage. When the weight of the moisture and dust absorbed by the silk screen 11 and the activated carbon fiber 10 in the collection tank 9 is reduced to a stop value, the gravity sensor 14 transmits the collected signal to the water supply and drainage control system 15, the water drainage control system 15 stops running by using the motor 8, the collection tank 9 stops rotating, and the spring 13 is reset.
Since the dust mist and the exhaust gas are introduced from the intake shaft pipe 12 in accordance with the centrifugal force generated when the collection tank 9 rotates, the moisture, the dust, and the like are naturally adsorbed by the wire mesh 11 and the activated carbon fiber 10.
Preferably, the start value and the stop value may be set as required, or the stop value may be set to 1.2 times the weight of the collection tank 9, and the start value may be set to 2.4 times the weight of the collection tank 9. For example, when the weight of the collection tank is 100kg, the start value is 240kg, and the stop value is 120kg.
Preferably, the top and the surrounding inner wall of the collecting tank body 1 are provided with back flushing spray heads 5, and the back flushing spray heads 5 are connected with a back flushing pump 18. When the gas in the collection tank 9 is discharged, the back flush pump 18 is started to supply water to the back flush nozzle 5, the back flush nozzle 5 sprays water to clean the collection tank 9, and the cleaned water can be discharged out of the collection tank body 1 through the drain pipe 26.
Preferably, the exhaust pipe 16 is respectively provided with a gas flow detector 17 and an exhaust electromagnetic valve 21, the gas flow detector 17, a backwash pump 18, the exhaust electromagnetic valve 21, an air inlet electromagnetic valve 20 on the air inlet pipe 2 and a dust collection electromagnetic valve 19 on the dust collection pipe 27 are respectively connected with a backwash control system 22, and the backwash control system 22 is connected with an upper computer 25, as shown in fig. 3. The backwash control system corresponds here to a lower computer for detecting signals from the engineering plant and for controlling the operating state of the plant.
The gas flow detector 17 communicates the detected gas flow to the backwash control system 22, when the gas flow detector 17 detects a decrease in the gas flow in the stack 16 to an abnormal flow value, for example when the abnormal flow value is less than 3000m 3 When the abnormal flow value is detected by the back flush control system 22, the back flush control system 22 controls the back flush pump 18 to start to work, the back flush pump 18 supplies water to the back flush spray head 5, and the back flush spray head sprays water with pressure to the collecting tank 9 to clean the silk screen 11 and the activated carbon fibers 10. When the weight of the collection tank 9 reaches a start value, the compression spring 13 is compressed, the drainage control system 15 drives the collection tank 9 to rotate by using the motor 8, and drains the collected moisture into the water collection tank 24; when the weight of the collection tank 9 is reduced to a stop value, the drain control system 15 stops running by the motor 8, and the collection tank 9 stops rotating, and the spring 13 is reset. At this time, the drainage control system 15 pauses to collect the data of the gravity sensor 14, the back flushing control system 22 controls the air inlet electromagnetic valve 20 and the air outlet electromagnetic valve 21 to be closed, the dust collection electromagnetic valve 19 is opened, and the fine dust in the collection tank 9 is sucked into the vacuum dust collection tank. After the process is finished, the air inlet electromagnetic valve 20 and the air outlet electromagnetic valve 21 are opened, and the dust collection electromagnetic valve 19 is closed to complete one cycle.
Preferably, two collection tanks which work alternately are arranged in the collection tank body, the two collection tanks are respectively connected with two air inlet branch pipes, and air inlet valves are respectively arranged on the two air inlet branch pipes. When one of the collection tanks performs back flushing operation, the other collection tank performs dust mist collection operation. That is, the dust mist and the exhaust gas need to be divided into two branches and respectively led to the two collecting tanks, when one of the two collecting tanks performs back flushing operation, the corresponding air inlet valve needs to be closed, and the air inlet valve corresponding to the other collecting tank is opened.
A method of collecting dust mist comprising the steps of:
waste gas enters the collecting tank through an air inlet hole on the air inlet shaft tube;
a cylindrical filter screen is arranged around an air inlet shaft tube in the collecting tank, and the air is filtered by each layer of cylindrical filter screen and then sequentially discharged out of the collecting tank body through an air outlet hole arranged on the collecting tank and an exhaust pipe arranged on the collecting tank body, wherein the air outlet hole is corresponding to the outermost layer of cylindrical filter screen;
utilize motor control collection jar rotatory, can pass through the drainage hole discharge collection jar all around with the moisture that gathers under the effect of centrifugal force to collect through the drain pipe that collection jar body bottom set up.
Preferably, the motor is used to control the rotation of the collection tank, and the method further comprises the following steps:
when the weight of the collection tank is detected to be started, controlling a motor to drive the collection tank to rotate;
when the weight of the collection tank is detected to reach a stop value, the motor is controlled to stop driving the collection tank to rotate.
Preferably, the method for collecting dust mist further comprises the following steps:
when the flow in the exhaust pipe is detected to be reduced to an abnormal flow value, controlling the backwash pump to supply water to the backwash nozzle to flush the collection tank;
when the weight of the collection tank is detected to reach a starting value, controlling a motor to drive the collection tank to rotate and collect water;
when the weight of the collection tank is detected to reach a stop value, controlling the motor to stop driving the collection tank to rotate;
and (5) suspending to collect the weight data of the collection tank, closing the air inlet pipeline and the air outlet pipeline, and collecting the dust particles in the tank.
Preferably, the start value, the stop value and the abnormal flow value can be set according to the needs.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The device for collecting dust and mist is characterized by comprising a collecting tank body and a collecting tank, wherein the collecting tank is arranged in the collecting tank body, and an air inlet pipe sequentially penetrates through the bottom of the collecting tank body and the bottom of the collecting tank to enter the collecting tank; the air inlet pipe comprises an air inlet guide pipe arranged outside the collecting tank body and an air inlet shaft pipe arranged inside the collecting tank body; an air inlet hole is formed in an air inlet shaft tube in the collecting tank; cylindrical filter screens are arranged in the collecting tank at intervals by taking the air inlet shaft tube as the center; an exhaust hole is arranged at the top of the collecting tank and corresponds to the position of the peripheral cylindrical filter screen; an exhaust pipe is arranged at the top of the collecting tank body; the top of the collecting tank body is connected with the collecting tank through a rotating shaft connected with a motor; drain holes are arranged around the collecting tank, a drain pipe is arranged at the bottom of the collecting tank body,
back flushing spray heads are arranged on the top and the surrounding inner walls of the collecting tank body, the back flushing spray heads are connected with a back flushing pump,
the device also comprises an intelligent control system, the intelligent control system comprises an upper computer, a drainage control system and a back flushing control system, the drainage control system and the back flushing control system are respectively connected with the upper computer,
the drainage control system is respectively connected with the motor, the gravity sensor and the drainage valve, the gravity sensor is arranged on a spring on an air inlet shaft tube between the collecting tank body and the collecting tank, and
the back flushing control system is respectively connected with a gas flow detector arranged on the exhaust pipe, a back flushing pump, an exhaust electromagnetic valve arranged on the exhaust pipe, an air inlet electromagnetic valve arranged on the air inlet shaft pipe and a dust collection electromagnetic valve arranged on the dust collection pipe.
2. The device for collecting dust and mist according to claim 1, wherein the cylindrical filter screen is formed by sequentially attaching a screen and activated carbon fibers from inside to outside.
3. A dust mist collecting device according to claim 1, characterized in that the cylindrical filter screen comprises a cylindrical screen provided inside the collecting tank and activated carbon fibers provided in an upper part layer of the cylindrical screen.
4. The device for collecting dust and mist according to claim 1, characterized in that two collection tanks which work alternately are provided in the collection tank body, the two collection tanks are respectively connected with two air inlet branch pipes, and air inlet valves are respectively provided on the two air inlet branch pipes.
5. A method of collecting dust mist using the dust mist collecting device of any one of claims 1 to 4, comprising the steps of:
waste gas enters the collecting tank through an air inlet hole on the air inlet shaft tube;
a cylindrical filter screen is arranged around an air inlet shaft tube in the collecting tank, and the waste gas is filtered by each layer of cylindrical filter screen and then sequentially discharged out of the collecting tank body through an air outlet hole arranged on the collecting tank and an exhaust pipe arranged on the collecting tank body, wherein the air outlet hole is corresponding to the outermost layer of cylindrical filter screen;
when the weight of the collecting tank is detected to reach a starting value, the motor is controlled to drive the collecting tank to rotate, collected moisture can be discharged out of the collecting tank through drain holes around the collecting tank under the action of centrifugal force, and the collected moisture is collected through a drain pipe arranged at the bottom of the collecting tank body;
when the weight of the collection tank is detected to reach a stop value, the motor is controlled to stop driving the collection tank to rotate.
6. The method of collecting dust mist according to claim 5, characterized in that the method of collecting dust mist further comprises the steps of:
when the flow in the exhaust pipe is detected to be reduced to an abnormal flow value, controlling the backwash pump to supply water to the backwash nozzle to flush the collection tank;
when the weight of the collection tank is detected to reach a starting value, controlling a motor to drive the collection tank to rotate and collect water;
when the weight of the collection tank is detected to reach a stop value, controlling the motor to stop driving the collection tank to rotate;
and (5) suspending to collect the weight data of the collection tank, closing the air inlet pipeline and the air outlet pipeline, and collecting the dust particles in the tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810597164.5A CN108525410B (en) | 2018-06-11 | 2018-06-11 | Device and method for collecting dust mist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810597164.5A CN108525410B (en) | 2018-06-11 | 2018-06-11 | Device and method for collecting dust mist |
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| Publication Number | Publication Date |
|---|---|
| CN108525410A CN108525410A (en) | 2018-09-14 |
| CN108525410B true CN108525410B (en) | 2023-10-20 |
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| CN201810597164.5A Active CN108525410B (en) | 2018-06-11 | 2018-06-11 | Device and method for collecting dust mist |
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| CN112657303B (en) * | 2020-12-02 | 2022-09-27 | 辽宁普雷特环保科技有限公司 | Cyclone based on environmental pollution administers |
| CN112604426B (en) * | 2020-12-21 | 2023-04-07 | 福建铭麟科技有限公司 | Energy-concerving and environment-protective exhaust treatment device |
| CN113041725A (en) * | 2021-03-17 | 2021-06-29 | 王文强 | Harmful gas filtration equipment for chemical industry pharmacy |
| CN113694652B (en) * | 2021-08-31 | 2022-08-23 | 安徽舒州生态农业科技股份有限公司 | Intelligent dust removal device of grain dryer and working method thereof |
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