CN112316647A - Waste gas dust collector of thermal power plant - Google Patents
Waste gas dust collector of thermal power plant Download PDFInfo
- Publication number
- CN112316647A CN112316647A CN202011334505.3A CN202011334505A CN112316647A CN 112316647 A CN112316647 A CN 112316647A CN 202011334505 A CN202011334505 A CN 202011334505A CN 112316647 A CN112316647 A CN 112316647A
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- China
- Prior art keywords
- water
- filter screen
- spray
- waste gas
- power plant
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000428 dust Substances 0.000 title claims abstract description 58
- 239000002912 waste gas Substances 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- 239000007921 spray Substances 0.000 claims abstract description 42
- 238000005507 spraying Methods 0.000 claims abstract description 42
- 239000007789 gas Substances 0.000 claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims description 19
- 239000010908 plant waste Substances 0.000 claims description 6
- 238000010408 sweeping Methods 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000011045 prefiltration Methods 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 5
- 230000001502 supplementing effect Effects 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The invention relates to the technical field of waste gas treatment equipment, in particular to a waste gas dust removal device for a thermal power plant. Including spraying jar, inlet air duct, outlet duct, water supply assembly and filter screen, spray jar one side with inlet air duct through connection, the outlet duct is located spray tank deck portion, water supply assembly with spray the jar and connect, the filter screen is located in the inlet air duct, be equipped with the clearance subassembly on the filter screen. The waste gas of thermal power plant passes through the filter screen of inlet air channel department, dust carries out prefilter in to waste gas, filter screen department sets up the clearance subassembly, can carry out automatic clearance to the filter screen, prevent that the dust from blockking up the influence filter effect, spray assembly carries out the secondary to dust in to waste gas and sprays the dust removal, water supply assembly can filter and cyclic utilization to the water after spraying, and the dust content in the discharge waste gas that can significantly reduce, it piles up to reduce the dust in the follow-up exhaust-gas treatment equipment, prolong exhaust-gas treatment equipment's life.
Description
Technical Field
The invention relates to the technical field of waste gas treatment equipment, in particular to a waste gas dust removal device for a thermal power plant.
Background
The exhaust gas from coal fired boilers in power plants is the most significant source of pollution in the electrical industry. The waste gas of the coal-fired power plant mainly comes from flue gas generated by boiler combustion, exhaust gas of a middle ash bin of a pneumatic ash conveying system, dust-containing waste gas generated by a coal yard, and coal dust generated in the processes of raw coal crushing and coal conveying. Wherein, the amount of flue gas generated by boiler combustion and the discharge amount of pollutants contained in the flue gas are far greater than those of other waste gases, which is the key point of pollution treatment.
Contain a large amount of dusts in coal fired boiler's the waste gas, when handling waste gas, if not get rid of the dust in time, the dust can be piled up in subsequent exhaust-gas treatment equipment, causes harm to exhaust-gas treatment equipment normal operating, reduces the life of equipment, increases the manufacturing cost of power plant, consequently needs a device that removes dust to waste gas.
Disclosure of Invention
The invention is specially provided for solving the problems, and provides a thermal power plant waste gas dust removal device which can remove dust contained in waste gas during waste gas treatment.
The utility model provides a waste gas dust collector of thermal power plant, is including spraying jar, inlet channel, outlet duct, water supply assembly and filter screen, spray jar one side with inlet channel through connection, the outlet duct is located spray tank deck portion, water supply assembly with spray tank connects, the filter screen is located in the inlet channel, be equipped with the clearance subassembly on the filter screen.
The spraying tank is characterized in that a spraying assembly is arranged on the upper portion of the inner cavity of the spraying tank, a water collecting cavity is arranged at the bottom of the inner cavity of the spraying tank, and the spraying assembly and the water collecting cavity are respectively connected with the water supply assembly.
The spraying assembly comprises a spraying pipe and a spray head positioned below the spraying pipe, and the spraying pipe is connected with the water supply assembly.
The inlet air duct is higher than spray tank bottoms portion chamber that catchments, inlet air duct keeps away from it is equipped with the air exhauster to spray tank one side, inlet air duct is close to spray tank one side and install the filter screen, the inlet air duct bottom is equipped with out the dirt mouth, it is located to go out the dirt mouth the filter screen is close to air exhauster one side.
The cleaning assembly comprises a toothed ring, a cleaning rod and a driving assembly; the toothed ring is fixed on the edge of one side of the filter screen close to the exhaust fan, and the center of the toothed ring is superposed with the center of the filter screen; cleaning rod one end is fixed on the filter screen center, cleaning rod can wind the filter screen center rotates, the cleaning rod other end is connected the ring gear.
The driving assembly comprises a driving wheel and a driving motor, the driving wheel is meshed with the gear ring and is connected with the gear ring, the driving motor is located outside the air inlet channel, and the driving motor is connected with the driving wheel.
Preferably, a motor protection cover is arranged outside the driving motor.
The outer wall of the air inlet channel is provided with a dust collecting box which is communicated with the dust outlet.
Preferably, the dust box is detachable.
The water supply assembly comprises a water outlet pipe, a water tank, a water pump and a water inlet pipe which are connected in sequence; the outlet pipe with the chamber intercommunication catchments, be equipped with the filter layer in the water tank, the end of intaking of water pump pass through the leading water pipe with the water tank is connected, the play water end of water pump passes through the inlet tube with the shower is connected, outlet pipe lateral wall intercommunication has the drain pipe, inlet tube lateral wall intercommunication has the moisturizing pipe.
Preferably, a baffle plate is arranged above the joint of the air inlet channel and the spraying tank, and the baffle plate is fixed on the inner wall of the spraying tank.
Preferably, the top of the spraying tank is fixedly connected with a conical cover, and the top of the conical cover is connected with the air outlet pipe.
The waste gas treatment device has the advantages that waste gas of a thermal power plant passes through the filter screen at the air inlet channel, the filter screen can primarily filter dust in the waste gas, the cleaning assembly is arranged at the filter screen and can automatically clean the filter screen to prevent dust from blocking and affecting the filtering effect, after the waste gas enters the spraying tank, the spraying assembly secondarily sprays and removes dust in the waste gas, and meanwhile, the water supply assembly can filter and recycle sprayed water, so that the high-water utilization rate can be provided, the dust content in the discharged waste gas can be greatly reduced, dust accumulation in subsequent waste gas treatment equipment is reduced, and the service life of the waste gas treatment equipment is prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is a top view of the cleaning assembly.
In the figure: 11-a spray tank, 12-a conical cover, 13-an air outlet pipe, 14-a water collecting cavity, 15-an water outlet pipe, 16-a water outlet pipe, 17-a water tank, 18-a filter layer, 19-a water guide pipe, 20-a water pump, 21-a water replenishing pipe, 22-a water inlet pipe, 23-a spray pipe, 24-a spray head, 25-an air inlet channel, 26-a filter screen, 27-a driving wheel, 28-a driving motor, 29-a toothed ring, 30-a cleaning rod, 31-a dust outlet, 32-a dust collecting box, 33-a motor protective cover, 34-an exhaust fan and 35-a baffle.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, which are incorporated in and constitute a part of this specification. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the heat-engine plant waste gas dust removal device comprises a spraying tank 11, an air inlet channel 25, an air outlet pipe 13, a water supply assembly and a filter screen 26, wherein one side of the spraying tank 11 is communicated with the air inlet channel 25, the air outlet pipe 13 is positioned at the top of the spraying tank 11, the water supply assembly is connected with the spraying tank 11, the filter screen 26 is positioned in the air inlet channel 25, and the filter screen 26 is provided with a cleaning assembly. The air inlet channel 25 is used for introducing waste gas into the spraying tank 11, and the air outlet pipe 13 is used for discharging the waste gas.
Spraying assembly is arranged on the upper portion of the inner cavity of the spraying tank 11, a water collecting cavity 14 is arranged at the bottom of the inner cavity of the spraying tank 11, the spraying assembly and the water collecting cavity 14 are respectively connected with the water supply assembly, the spraying assembly comprises a spraying pipe 23 and a spray head 24 positioned below the spraying pipe 23, and the spraying pipe 23 is connected with the water supply assembly. The spraying assembly is used for spraying and dedusting the waste gas in the spraying tank 11, and the water collecting cavity 14 is used for collecting water in the spraying tank 11.
The air inlet channel 25 is higher than the water collecting cavity 14 at the bottom of the spraying tank 11, an exhaust fan 34 is arranged on one side, away from the spraying tank 11, of the air inlet channel 25, a filter screen 26 is arranged on one side, close to the spraying tank 11, of the air inlet channel 25, a dust outlet 31 is arranged at the bottom of the air inlet channel 25, and the dust outlet 31 is located on one side, close to the exhaust fan 34, of the filter screen 26.
As shown in fig. 3, the cleaning assembly includes a toothed ring 29, a sweep bar 30, and a drive assembly; a toothed ring 29 is fixed on the edge of the side, close to the exhaust fan 34, of the filter screen 26, and the center of the toothed ring 29 is overlapped with the center of the filter screen 26; one end of the cleaning rod 30 is fixed on the center of the filter screen 26, the cleaning rod 30 can rotate around the center of the filter screen 26, and the other end of the cleaning rod 30 is connected with the toothed ring 29. The cleaning assembly may automatically clean the filter screen 26 of dust.
The driving assembly comprises a driving wheel 27 and a driving motor 28, the driving wheel 27 is meshed with the toothed ring 29, the driving motor 28 is located outside the air inlet channel 25, and the driving motor 28 is connected with the driving wheel 27.
In this embodiment, a motor protective cover 33 is provided outside the driving motor 28.
The driving motor 28 is operated to rotate the driving wheel 27, thereby rotating the toothed ring 29, and the toothed ring 29 rotates the associated sweeping rod 30 around the center of the filter net 26, thereby removing dust from the filter net 26.
The outer wall of the air inlet channel 25 is provided with a dust collecting box 32, and the dust collecting box 32 is communicated with the dust outlet 31. In this embodiment, the dust box 32 is detachable. The dust removed by the sweeping rod 30 falls from the dust outlet 31 into the dust box 32.
The water supply assembly comprises a water outlet pipe 15, a water tank 17, a water pump 20 and a water inlet pipe 22 which are connected in sequence; the water outlet pipe 15 is communicated with the water collecting cavity 14, a filter layer 18 is arranged in the water tank 17, the water inlet end of the water pump 20 is connected with the water tank 17 through a water conduit 19, and the water outlet end of the water pump 20 is connected with a spray pipe 23 through a water inlet pipe 22. The side wall of the water outlet pipe 15 is communicated with a water outlet pipe 16, and the side wall of the water inlet pipe 22 is communicated with a water supplementing pipe 21.
The water outlet pipe 15 is used for discharging water in the water collecting cavity 14 into the water tank 17, the water inlet pipe 22 is used for supplementing water into the spraying pipe 23, the water supplementing pipe 21 is used for supplementing water into the water tank 17, the water outlet pipe 16 is used for discharging water, the water pump 20 is used for driving circulation of water in the water supply assembly, water enters the spraying pipe 23 from the water tank 17 through the water inlet pipe 22, water sprayed by the spray head 24 is collected in the water collecting cavity 14 and is discharged into the water tank 17 through the water outlet pipe 15, and the discharged water is filtered by the filter layer 18 and then is pumped into the water inlet pipe 22 through the water pump 20, so that water circulation is formed.
In this embodiment, a baffle 35 is disposed above the connection between the air intake channel 25 and the spray tank 11, and the baffle 35 is fixed on the inner wall of the spray tank 11. The baffle 35 prevents water sprayed in the spray tank 11 from entering the air intake passage 25.
In this embodiment, the top of the spray tank 11 is fixedly connected with a conical cover 12, and the top of the conical cover 12 is connected with an air outlet pipe 13.
When using this exhaust gas dust collector of thermal power plant, waste gas gets into inlet air channel 25, filter screen 26 carries out the prefilter to dust in the waste gas, driving motor 28 work drives drive wheel 27 and rotates, it rotates to drive ring gear 29, thereby it rotates around filter screen 26 center to drive cleaning rod 30, clean filter screen 26, stop to filter the dust that gets off and block up filter screen 26 and influence the filter effect, waste gas after the filtration gets into in spraying jar 11, spray assembly shower water, dust removal is sprayed to dust in the waste gas for the secondary, reduce dust in the exhaust gas, conveniently handle the purification in going into next exhaust gas treatment equipment from outlet duct 13, water supply assembly can filter the back cyclic utilization to the water after spraying, water after cyclic utilization a period passes through drain pipe 16 and discharges.
Claims (10)
1. The utility model provides a waste gas dust collector of thermal power plant, is including spraying jar, inlet channel, outlet duct, water supply assembly and filter screen, spray jar one side with inlet channel through connection, the outlet duct is located spray tank deck portion, water supply assembly with spray tank connects, the filter screen is located in the inlet channel, its characterized in that, be equipped with the clearance subassembly on the filter screen.
2. The thermal power plant waste gas dust removal device according to claim 1, wherein a spray assembly is arranged at the upper part of the inner cavity of the spray tank, a water collection cavity is arranged at the bottom of the inner cavity of the spray tank, and the spray assembly and the water collection cavity are respectively connected with the water supply assembly.
3. The thermal power plant exhaust gas dust removal device of claim 2, wherein the spray assembly comprises a spray pipe and a spray head located below the spray pipe, and the spray pipe is connected with the water supply assembly.
4. The thermal power plant waste gas dust removal device of claim 3, wherein the inlet air channel is higher than the spray tank bottom water collection cavity, the inlet air channel is far away from spray tank one side and is equipped with the air exhauster, the inlet air channel is close to spray tank one side and install the filter screen, the inlet air channel bottom is equipped with out the dirt mouth, it is located to go out the dirt mouth the filter screen is close to one side of air exhauster.
5. The thermal power plant exhaust gas dust removal device of claim 4, wherein the cleaning assembly comprises a toothed ring, a sweeping rod and a driving assembly; the toothed ring is fixed on the edge of one side of the filter screen close to the exhaust fan, and the center of the toothed ring is superposed with the center of the filter screen; cleaning rod one end is fixed on the filter screen center, cleaning rod can wind the filter screen center rotates, the cleaning rod other end is connected the ring gear.
6. The thermal power plant exhaust gas dust removal device of claim 5, wherein the driving assembly comprises a driving wheel and a driving motor, the driving wheel is meshed with the toothed ring, the driving motor is located outside the air inlet channel, and the driving motor is connected with the driving wheel.
7. The thermal power plant exhaust gas dust removal device of claim 6, wherein a dust collection box is arranged on an outer wall of the air inlet channel, and the dust collection box is communicated with the dust outlet.
8. The thermal power plant exhaust gas dust removal device according to claim 6, wherein the water supply assembly comprises a water outlet pipe, a water tank, a water pump and a water inlet pipe which are connected in sequence; the water outlet pipe with the chamber intercommunication catchments, be equipped with the filter layer in the water tank, the end of intaking of water pump pass through the leading water pipe with the water tank is connected, the play water end of water pump pass through the inlet tube with the shower is connected.
9. The thermal power plant waste gas dust removal device according to claim 8, wherein a baffle is arranged above a joint of the air inlet channel and the spray tank, and the baffle is fixed on the inner wall of the spray tank.
10. The thermal power plant waste gas dust removal device of claim 8, wherein a conical cover is fixedly connected to the top of the spray tank, and the top of the conical cover is connected to the gas outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011334505.3A CN112316647A (en) | 2020-11-25 | 2020-11-25 | Waste gas dust collector of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011334505.3A CN112316647A (en) | 2020-11-25 | 2020-11-25 | Waste gas dust collector of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112316647A true CN112316647A (en) | 2021-02-05 |
Family
ID=74309456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011334505.3A Pending CN112316647A (en) | 2020-11-25 | 2020-11-25 | Waste gas dust collector of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112316647A (en) |
-
2020
- 2020-11-25 CN CN202011334505.3A patent/CN112316647A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210205 |