CN115055019A - Wet dust collector - Google Patents

Wet dust collector Download PDF

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Publication number
CN115055019A
CN115055019A CN202210732868.5A CN202210732868A CN115055019A CN 115055019 A CN115055019 A CN 115055019A CN 202210732868 A CN202210732868 A CN 202210732868A CN 115055019 A CN115055019 A CN 115055019A
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China
Prior art keywords
atomizing
impeller
water
pipe
barrel
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Granted
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CN202210732868.5A
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Chinese (zh)
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CN115055019B (en
Inventor
黄星凯
冯骁
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South China Agricultural University
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South China Agricultural University
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Publication of CN115055019A publication Critical patent/CN115055019A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06Spray cleaning

Abstract

The invention relates to a wet dust collector, which comprises a rack, a liquid storage barrel arranged on the rack, an installation barrel and a dust collector arranged in the installation barrel, wherein the installation barrel is positioned above the liquid storage barrel and is communicated with the liquid storage barrel; the top of the mounting cylinder is provided with an air outlet, and the side wall of the mounting cylinder is provided with an air inlet and a water inlet, wherein the air inlet is connected with an air inlet pipe, and the water inlet is communicated with a water injection pipe; the dust removal device comprises an impeller arranged in the mounting cylinder and a rotating motor for driving the impeller to rotate, wherein a main shaft of the rotating motor is connected with the impeller; the lower extreme of impeller is provided with the pipe, be provided with atomizing subassembly in the pipe. Through the improvement, the wet dust collector can more fully mix the water mist and the dust, thereby improving the dust removal effect.

Description

Wet dust collector
Technical Field
The invention relates to a dust remover, in particular to a wet dust remover.
Background
The wet dust collector is commonly called as a demister, and is a device which makes dust-containing gas and liquid (generally water) closely contact, utilizes the inertia collision of water drops and particles or utilizes the full mixing action and other actions of water and dust to capture the particles or enlarge or retain the particles in a fixed container to achieve the effect of separating the water from the dust.
The produced wet dust collector combines two forms of water bath and spraying into a whole. Firstly, the dust-containing gas is pressed into a water tank filled with water with a certain height by utilizing the suction force of a high-pressure centrifugal fan, and a part of dust is adsorbed in the water by the water bath. After the uniform distribution and the flow division, the gas flows from bottom to top, and the high-pressure spray head sprays water mist to collect the rest dust particles. The filtering efficiency can reach more than 85%.
Wet scrubbers are effective at removing liquid or solid particles from gas streams having diameters of 0.1 to 20 microns, while also removing a portion of the gaseous contaminants. Therefore, the device has the advantages of simple structure, small occupied area, convenient operation and maintenance, high purification efficiency and the like, can treat high-temperature and high-humidity airflow, and minimizes the possibility of ignition and explosion. The method is suitable for the fields of cleaning and purifying harmful gases such as various industrial dusts, organic peculiar smells, acid and alkali waste gas absorption and purification, smoke such as boiler smoke desulfurization, die casting machines, central smelters and incinerators, chemical pharmacy, food processing, metallurgy, casting, carbon materials, machining, building materials, tablet presses, granulators, mixers, batching, mixing, sieving, vibrating sieves and the like.
The existing wet dust collector which generates negative pressure through the rotation of an impeller adsorbs water through the negative pressure to generate water mist or fine water drops to fill the water mist or the fine water drops in a guide pipe, so that the water mist or the fine water drops and dust particles are fully mixed to remove dust. However, in practical application, the water mist adsorbed by the impeller in the conduit has a poor effect, most of the water flow column goes along the inner wall of the conduit, and the water flow column cannot reach a saturated water mist state and is filled in the conduit, so that the dust removal effect is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a wet dust collector which can more fully mix water mist and dust so as to improve the dust collection effect.
The technical scheme of the invention for solving the problems in the prior art is as follows:
a wet dust collector comprises a frame, a liquid storage barrel arranged on the frame, an installation barrel and a dust collector arranged in the installation barrel, wherein the installation barrel is positioned above the liquid storage barrel and is communicated with the liquid storage barrel; the top of the mounting cylinder is provided with an air outlet, and the side wall of the mounting cylinder is provided with an air inlet and a water inlet, wherein the air inlet is connected with an air inlet pipe, and the water inlet is communicated with a water injection pipe; the dust removal device comprises an impeller arranged in the mounting cylinder and a rotating motor used for driving the impeller to rotate, wherein a main shaft of the rotating motor is connected with the impeller; the lower extreme of impeller is provided with the pipe, be provided with atomizing subassembly in the pipe.
Preferably, a conical air guide sleeve is arranged at the top of the guide pipe, wherein one end with a smaller inner diameter in the air guide sleeve is communicated with the guide pipe; the end with larger inner diameter is positioned below the impeller; and a backflow channel is arranged between the air guide sleeve and the inner side wall of the mounting cylinder.
Preferably, the axial direction of the air inlet pipe is tangent to the side wall of the mounting cylinder.
Preferably, the liquid storage barrel is communicated with a drain pipe; the water injection pipe and the water discharge pipe are both provided with valves.
Preferably, the atomization assembly comprises a plurality of infusion tubes which are arranged at intervals along the circumferential direction of the guide tube, wherein the inner diameter of the guide tube is gradually increased from the middle to the upper side and the lower side; the infusion tube is communicated with the minimum inner diameter position of the catheter.
Preferably, the atomization assembly comprises an atomization cylinder arranged inside the conduit, wherein the atomization cylinder is conical, one end of the atomization cylinder with a smaller inner diameter is close to the impeller, and the top of the atomization cylinder is provided with an atomization hole.
Preferably, a liquid inlet channel is arranged between the outer side wall of the bottom of the atomizing cylinder and the inner side wall of the guide pipe.
Preferably, a conical liquid blocking cover is arranged at the top of the flow guide cover, wherein one end, with a smaller outer diameter, of the liquid blocking cover is close to and opposite to the spraying hole of the atomizing cylinder; and a flow guide channel is arranged between the liquid blocking cover and the flow guide cover.
Preferably, the atomization assembly comprises a plurality of groups of atomization baffles arranged on the inner side wall of the guide pipe, and the plurality of groups of atomization baffles are arranged at equal intervals along the axial direction of the guide pipe.
Preferably, the atomization baffle comprises a plurality of groups of first atomization plates and second atomization plates which are arranged oppositely, wherein the first atomization plates are arranged horizontally, and the second atomization plates are arranged obliquely; one end of the second atomization plate, which is far away from the conduit, is positioned below the first atomization plate.
Compared with the prior art, the invention has the following beneficial effects:
the wet dust collector drives the impeller to rotate through the rotating motor, so that large-particle dust particles are centrifugally thrown into the liquid storage barrel below and sink to the bottom of water; simultaneously, water in the liquid storage barrel is upwards pumped into the guide pipe by negative pressure generated by rotation of the impeller, so that the water and part of small-particle dust enter the guide pipe under the action of the negative pressure, the water is atomized by an atomizing assembly in the guide pipe, the water mist and the dust particles are fully mixed, the mixed water and dust flow continuously flows to the position of the impeller along the guide pipe and is hit by the rotating impeller, the water and dust flow is beaten into the water mist again or the water mist is broken again, the water mist and the dust particles are thrown onto the inner side wall of the mounting barrel under the centrifugal action of the impeller, and the formed water carries the dust particles to flow downwards; the dedusted gas is discharged from an air outlet at the top of the mounting cylinder; through the dust removal mode, water and dust particles can be fully mixed, so that the dust removal effect is greatly improved.
Drawings
Fig. 1 is a schematic perspective view of a wet scrubber according to a first embodiment of the present invention.
Fig. 2 is a partial sectional view of the wet scrubber.
Fig. 3 is an enlarged view of a point a in fig. 2.
Fig. 4 is a schematic structural view of the rotary electric machine and the impeller.
Fig. 5 is a transverse cross-sectional view of the position of the air inlet duct.
Fig. 6 is a schematic diagram of the structure of the conduit and atomizing assembly.
FIG. 7 is a cross-sectional view of a conduit and atomizing assembly.
Fig. 8 is a schematic view of the structure of the conduit and the atomizing assembly in the second embodiment of the wet scrubber of the present invention.
Fig. 9 is a cross-sectional view of the conduit and atomizing assembly of fig. 8.
Fig. 10 is an enlarged view at B in fig. 9.
Fig. 11 is an enlarged view at C in fig. 9.
Fig. 12 is a schematic diagram of the structure of the conduit and the atomizing assembly in the third embodiment of the wet scrubber of the present invention.
Fig. 13 is a cross-sectional view of the conduit and atomizing assembly of fig. 12.
In the figure: 1-a liquid storage barrel; 2, mounting a cylinder; 3, air outlet; 4-a catheter; 5-a rotating electrical machine; 6-impeller; 7-an air inlet pipe; 8-a flow guide cover; 9-a return channel; 10-a water injection pipe; 11-a drain pipe; 12-a valve; 13-a transfusion tube; 14-an atomizing cylinder; 15-spray holes; 16-a liquid inlet channel; 17-liquid blocking cover; 18-a flow guide channel; 19-a fixation rod; 20-a first atomization plate; 21-second atomization plate.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Example 1
Referring to fig. 1-7, the wet dust collector of the present invention comprises a liquid storage barrel 1 and a mounting barrel 2 arranged on the top of the liquid storage barrel 1, wherein the top of the mounting barrel 2 is provided with an air outlet 3, and the side wall is communicated with an air inlet pipe 7; the inside of this installation section of thick bamboo 2 is equipped with pipe 4 and rotating electrical machines 5, wherein, be equipped with impeller 6 on the main shaft of rotating electrical machines 5, pipe 4 is located impeller 6 below, is equipped with atomizing subassembly in this pipe 4.
The working principle of the wet dust collector of the invention is as follows:
in practical use, liquid, such as water, can be injected into the liquid storage barrel 1, because the lowest end of the duct 4 is located above the water surface, a dust flow carrying dust particles is conveyed into the installation barrel 2 from the air inlet pipe 7, the dust flow is screwed in along the outer wall of the duct 4, and meanwhile, the rotating motor 5 drives the impeller 6 to rotate, so that the large-particle dust particles are centrifugally thrown into the liquid storage barrel 1 below and sink to the water bottom. In the process, the impeller 6 rotates to generate negative pressure to pump water in the liquid storage barrel 1 upwards, the water and part of small particle dust enter the guide pipe 4 under the action of the negative pressure, at the moment, the atomizing assembly of the guide pipe 4 atomizes the water so as to be convenient for fully mixing the water mist and the dust particles, the mixed water and dust flow continuously flows to the position of the impeller 6 along the guide pipe 4 and is beaten and crushed by the rotating impeller 6, and thus the water is further beaten and dispersed into the water mist, so that the water mist and the dust particles are thrown to the inner side wall of the mounting barrel 2 under the centrifugal action of the impeller 6 and then flow downwards; and the dedusted gas is discharged from an air outlet 3 at the top of the mounting cylinder 2.
As shown in fig. 1-7, a conical air guide sleeve 8 is arranged at the top of the conduit 4, and one end of the air guide sleeve 8 with a smaller inner diameter is communicated with the conduit 4; the air guide sleeve 8 is positioned below the impeller 6, and a return channel 9 is arranged between the air guide sleeve 8 and the inner side wall of the mounting cylinder 2. Through setting up kuppe 8 for upwards flowing water and dust flow can be followed in pipe 4 kuppe 8 is towards dispersion all around, is convenient for it and impeller 6 contact all around, thereby improves dust removal effect. In addition, after water smoke and dust particles are thrown to the inside wall of the mounting cylinder 2 under the centrifugal action of the impeller 6, water drops carrying the dust particles can flow downwards through the backflow channel 9 and flow into the liquid storage barrel 1, so that water carrying the dust particles is collected.
As shown in fig. 1-7, the axial direction of the air inlet pipe 7 is tangential to the side wall of the installation cylinder 2; through the arrangement, as the axial direction of the air inlet pipe 7 is tangent to the side wall of the mounting cylinder 2, the dust flow can rotate on the inner side wall of the mounting cylinder 2 after flowing into the mounting cylinder 2 through the air inlet pipe 7, so that large-particle dust particles in the dust flow are thrown to the inner side wall of the mounting cylinder 2 through rotation and centrifugation and then fall into the liquid storage barrel 1.
As shown in fig. 1-7, a water injection pipe 10 and a water discharge pipe 11 are communicated with the installation cylinder 2, wherein both the water injection pipe 10 and the water discharge pipe 11 are provided with valves 12; with the above arrangement, water can be added into the liquid storage tub 1 through the water injection pipe 10, and the dedusted water is discharged through the water discharge pipe 11.
As shown in fig. 1 to 7, the atomizing assembly includes a plurality of liquid feed tubes 13 arranged at equal intervals in the circumferential direction of the guide tube 4, wherein the inner diameter of the guide tube 4 is gradually increased from the middle toward the upper and lower sides, and the liquid feed tubes 13 communicate with the minimum inner diameter portion of the guide tube 4. During the use, the aquatic in the stock solution bucket 1 is inserted to the bottom of each transfer line 13, and the bottom of pipe 4 then is located on the surface of water, rotates under the negative pressure effect that produces at impeller 6, and water can get into from each transfer line 13 in the pipe 4, because the internal diameter of pipe 4 is from the middle upwards and the below grow gradually, consequently pipe 4 is similar to venturi, utilizes the venturi principle, and under the negative pressure effect, the water that gets into pipe 4's minimum internal diameter department is fast at the minimum internal diameter department velocity of flow of pipe 4, is convenient for this moment to make water spray from pipe 4's minimum internal diameter department upwards to make water become water smoke and mix with the dust stream, and then be convenient for remove dust.
Example 2
Referring to fig. 8 to fig. 11, the present embodiment is different from embodiment 1 in that:
the atomizing assembly of the present embodiment includes an atomizing cylinder 14 disposed inside the conduit 4, wherein the atomizing cylinder 14 is conical, one end of the atomizing cylinder 14 with a smaller inner diameter is close to the impeller 6, and a spray hole 15 is formed at the top of the atomizing cylinder 14; in addition, a liquid inlet channel 16 is arranged between the outer side wall of the bottom of the atomizing cylinder 14 and the inner side wall of the guide pipe 4; the top of the air guide sleeve 8 is provided with a conical liquid baffle sleeve 17, and the end with the smaller outer diameter of the liquid baffle sleeve 17 is close to the spraying hole 15 and is opposite to the spraying hole 15; a flow guide channel 18 is arranged between the liquid blocking cover 17 and the flow guide cover 8.
Through the arrangement, a part of water flow and dust flow enter the atomizing cylinder 14 from the bottom of the atomizing cylinder 14 and are sprayed out from the spraying holes 15 at the top of the atomizing cylinder 14 and spread, and the sprayed water mist is sprayed with dust particles on one end with a smaller outer diameter in the liquid blocking cover 17, so that the water mist is formed or the water mist is formed into finer water mist; meanwhile, a part of water flow and dust flow enter the guide pipe 4 from the liquid inlet channel 16 and move upwards, so that the water flow and the dust flow inside and outside the atomizing cylinder 14 are mixed at the top of the guide pipe 4 and are discharged from the flow guide channel 18, and the water mist discharged from the flow guide channel 18 is contacted with the impeller 6, further crushed by the beating of the impeller 6, thrown to the inner side wall of the mounting cylinder 2 under the centrifugal action of the impeller 6 and then flows downwards; and the dedusted gas is discharged from an air outlet 3 at the top of the mounting cylinder 2.
As an alternative, the liquid shield 17 and the air guide 8 may be fixedly connected by a plurality of fixing rods 19.
Example 3
Referring to fig. 12 to 13, the present embodiment is different from embodiment 1 in that the atomizing assembly of the present embodiment includes a plurality of sets of atomizing baffles disposed on the inner side wall of the conduit 4, wherein the plurality of sets of atomizing baffles are disposed at equal intervals along the axial direction of the conduit 4, and wherein the atomizing baffles include a plurality of sets of first atomizing plates 20 and second atomizing plates 21 disposed opposite to each other; wherein, first atomizing plate 20 sets up horizontally, second atomizing plate 21 sets up in the slope, the one end that second atomizing plate 21 kept away from pipe 4 is located first atomizing plate 20 below. Through the arrangement, the water flow pumped by the negative pressure generated by the impeller 6 is beaten on the first atomization plate 20 and the second atomization plate 21 and is beaten step by step through the first atomization plate 20 and the second atomization plate 21, so that the water flow is changed into water mist and is fully mixed with the dust flow, and dust removal is facilitated.
The above description is a preferred embodiment of the present invention, but the present invention is not limited to the above description, and any other changes, modifications, substitutions, blocks and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and they are included in the scope of the present invention.

Claims (10)

1. A wet dust collector is characterized by comprising a rack, a liquid storage barrel arranged on the rack, an installation barrel and a dust collector arranged in the installation barrel, wherein the installation barrel is positioned above the liquid storage barrel and is communicated with the liquid storage barrel; the top of the mounting cylinder is provided with an air outlet, and the side wall of the mounting cylinder is provided with an air inlet and a water inlet, wherein the air inlet is connected with an air inlet pipe, and the water inlet is communicated with a water injection pipe; the dust removal device comprises an impeller arranged in the mounting cylinder and a rotating motor used for driving the impeller to rotate, wherein a main shaft of the rotating motor is connected with the impeller; the lower extreme of impeller is provided with the pipe, be provided with atomizing subassembly in the pipe.
2. A wet scrubber according to claim 1, wherein the top of the conduit is provided with a conical air guide sleeve, wherein the end of the air guide sleeve with the smaller inner diameter is communicated with the conduit; the end with larger inner diameter is positioned below the impeller; and a backflow channel is arranged between the air guide sleeve and the inner side wall of the mounting cylinder.
3. A wet scrubber according to claim 2, wherein the axial direction of the air inlet duct is tangential to the side wall of the mounting drum.
4. A wet scrubber according to claim 2, wherein the reservoir is in communication with a drain; the water injection pipe and the water discharge pipe are both provided with valves.
5. A wet scrubber according to claim 2, wherein the atomizing assembly includes a plurality of fluid lines spaced apart along a circumferential direction of the duct, wherein an inner diameter of the duct is gradually increased from a middle portion to upper and lower sides, respectively; the infusion tube is communicated with the minimum inner diameter position of the catheter.
6. A wet scrubber according to claim 2, wherein the atomizing assembly comprises an atomizing barrel disposed inside the conduit, wherein the atomizing barrel is tapered, and wherein the end of the atomizing barrel having a smaller inner diameter is adjacent to the impeller and has a spray hole at the top.
7. A wet dust collector as claimed in claim 6, wherein a liquid inlet passage is provided between the outer side wall of the bottom of the atomizing cylinder and the inner side wall of the conduit.
8. The wet dust collector as claimed in claim 7, wherein a tapered liquid-blocking cover is provided on the top of the air guide cover, wherein the end of the liquid-blocking cover with smaller outer diameter is close to and opposite to the spray hole of the atomizing cylinder; and a flow guide channel is arranged between the liquid blocking cover and the flow guide cover.
9. A wet scrubber according to claim 2, wherein the atomizing assembly comprises a plurality of groups of atomizing baffles disposed on the inner sidewall of the conduit, the plurality of groups of atomizing baffles being disposed at equal intervals along the axial direction of the conduit.
10. A wet scrubber according to claim 8, wherein the atomization baffle comprises a plurality of sets of first and second atomization plates disposed in opposition, wherein the first atomization plate is disposed horizontally and the second atomization plate is disposed obliquely; one end of the second atomization plate, which is far away from the conduit, is positioned below the first atomization plate.
CN202210732868.5A 2022-06-27 2022-06-27 Wet dust collector Active CN115055019B (en)

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Application Number Priority Date Filing Date Title
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CN115055019B CN115055019B (en) 2023-11-24

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2013007A1 (en) * 1970-03-19 1971-09-30 Garant Entstaubungsanlagen und Apparatebau GmbH, 7632 Friesenheim Wet dust removal from gas
CN101111296A (en) * 2005-02-03 2008-01-23 尹璋植 Centrifugal wet type air cleaner utilizing a spin vaporizer and a spiral on the basis of a labyrinth effect
CN201049275Y (en) * 2007-04-20 2008-04-23 周晓 Multi-level water film whirlwind negative pressure dust removing device
CN106076040A (en) * 2016-08-10 2016-11-09 安徽理工大学 A kind of jet atomization formula mining eddy flow inertial dust separator and use technique thereof
CN106178829A (en) * 2016-07-26 2016-12-07 淮南市知产创新技术研究有限公司 A kind of air cleaner and air purification method
CN206121418U (en) * 2016-09-26 2017-04-26 吉林润垚环境生物科技有限公司 Compound wet dust collector of whirl water film multitube
CN107174905A (en) * 2017-07-14 2017-09-19 山东义科节能科技股份有限公司 Water-fog type centrifugal dust collection device
CN210845737U (en) * 2019-09-19 2020-06-26 常州市清泉环保成套设备有限公司 Multifunctional efficient wet dust collector
CN112452087A (en) * 2020-11-20 2021-03-09 中山市保美环境科技开发有限公司 Cyclone wet dust collector
CN215539397U (en) * 2021-07-21 2022-01-18 广州普华环境科技有限公司 Self-excitation type wet dust removal device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2013007A1 (en) * 1970-03-19 1971-09-30 Garant Entstaubungsanlagen und Apparatebau GmbH, 7632 Friesenheim Wet dust removal from gas
CN101111296A (en) * 2005-02-03 2008-01-23 尹璋植 Centrifugal wet type air cleaner utilizing a spin vaporizer and a spiral on the basis of a labyrinth effect
CN201049275Y (en) * 2007-04-20 2008-04-23 周晓 Multi-level water film whirlwind negative pressure dust removing device
CN106178829A (en) * 2016-07-26 2016-12-07 淮南市知产创新技术研究有限公司 A kind of air cleaner and air purification method
CN106076040A (en) * 2016-08-10 2016-11-09 安徽理工大学 A kind of jet atomization formula mining eddy flow inertial dust separator and use technique thereof
CN206121418U (en) * 2016-09-26 2017-04-26 吉林润垚环境生物科技有限公司 Compound wet dust collector of whirl water film multitube
CN107174905A (en) * 2017-07-14 2017-09-19 山东义科节能科技股份有限公司 Water-fog type centrifugal dust collection device
CN210845737U (en) * 2019-09-19 2020-06-26 常州市清泉环保成套设备有限公司 Multifunctional efficient wet dust collector
CN112452087A (en) * 2020-11-20 2021-03-09 中山市保美环境科技开发有限公司 Cyclone wet dust collector
CN215539397U (en) * 2021-07-21 2022-01-18 广州普华环境科技有限公司 Self-excitation type wet dust removal device

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