CN111249850A - Surfactant bubble dust removal device and method - Google Patents

Surfactant bubble dust removal device and method Download PDF

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Publication number
CN111249850A
CN111249850A CN202010248262.5A CN202010248262A CN111249850A CN 111249850 A CN111249850 A CN 111249850A CN 202010248262 A CN202010248262 A CN 202010248262A CN 111249850 A CN111249850 A CN 111249850A
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China
Prior art keywords
bubble
water
filter plate
surfactant
dust
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CN202010248262.5A
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Chinese (zh)
Inventor
王鹏飞
高润泽
刘荣华
邬高高
李浩轩
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Hunan University of Science and Technology
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Hunan University of Science and Technology
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Priority to CN202010248262.5A priority Critical patent/CN111249850A/en
Publication of CN111249850A publication Critical patent/CN111249850A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/60Combinations of devices covered by groups B01D46/00 and B01D47/00

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Particles Using Liquids (AREA)

Abstract

The invention discloses a surfactant bubble dust removal device and a dust removal method, wherein the device comprises a shell, a bubble generation assembly, a filter plate, a water baffle, a liquid storage tank, a blower, a water pump and a fan; the shell is of a cylindrical structure with openings at two ends; the bubble generating assembly, the filter plate, the water baffle and the fan are arranged in the shell; the bubble generation assembly comprises a plurality of bubble nozzles, an air inlet pipe and a water inlet pipe; the air inlet of the bubble nozzle is arranged on the air inlet pipe, the water inlet of the bubble nozzle is arranged on the water inlet pipe, and the air inlet pipe is connected with the air outlet of the blower fan; the water inlet pipe is connected with the outlet of the water pump, and the inlet of the water pump is communicated with the liquid storage tank; the filter plate is arranged between the bubble nozzle and the water baffle. The invention has the advantages of small water consumption, convenient movement, simple structure, high dust removal efficiency and the like.

Description

Surfactant bubble dust removal device and method
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to a surfactant bubble dust removal device and a dust removal method.
Background
The dust removal technology is a separation operation technology of a multiphase mixture of gas and dust particles, wherein the dust refers to tiny solid particles with negligible sedimentation rate, and the particle size of the tiny solid particles is generally between 0.01 and 100 microns. Dust-containing gas is an important factor causing problems in human health, quality defects of precision products, and abnormalities in production conditions, and thus dust removal techniques and devices are increasingly and intensively studied and paid attention. Wet dust removal is the most commonly used method in industrial dust removal, but the traditional spray wet dust removal method still has some problems, such as large water consumption, insufficient dust removal efficiency and the like.
Disclosure of Invention
In order to solve the technical problems, the invention provides the surfactant bubble dust removal device and the surfactant bubble dust removal method, which have the advantages of simple structure, low water consumption and high water utilization rate and dust removal efficiency.
The technical scheme adopted by the invention is as follows: a surfactant bubble dust removal device comprises a shell, a bubble generation assembly, a filter plate, a water baffle, a liquid storage tank, a pressure fan, a water pump and a fan; the shell is of a cylindrical structure with openings at two ends; the bubble generating assembly, the filter plate, the water baffle and the fan are arranged in the shell; the bubble generation assembly comprises a plurality of bubble nozzles, an air inlet pipe and a water inlet pipe; the air inlet of the bubble nozzle is arranged on the air inlet pipe, the water inlet of the bubble nozzle is arranged on the water inlet pipe, and the air inlet pipe is connected with the air outlet of the blower fan; the water inlet pipe is connected with the outlet of the water pump, and the inlet of the water pump is communicated with the liquid storage tank; the filter plate is arranged between the bubble nozzle and the water baffle.
In the surfactant bubble dust removal device, the cross section of the shell is rectangular, and the bottom of the shell is provided with universal wheels.
In the surfactant bubble dust removal device, the fan is an axial flow fan.
In the surfactant bubble dedusting device, the bubble nozzle comprises a nozzle body, one end of the nozzle body is provided with a water inlet and an air inlet, and the other end of the nozzle body is provided with a bubble outlet; a liquid channel and a gas channel are arranged in the spray head body, the two ends of the liquid channel are connected with the water inlet and the bubble outlet, and the two ends of the gas channel are respectively connected with the air inlet and the bubble outlet.
In the surfactant bubble dust removal device, the filter plate comprises a string grid plate frame and a string grid plate, wherein the string grid plate frame comprises an outer frame, a plurality of cross beams and a plurality of longitudinal beams; the outer frame is divided into a plurality of small frames by the cross beams and the longitudinal beams, and a string grid plate is arranged in each small frame.
In the surfactant bubble dust removal device, the water baffle comprises a water baffle frame and a baffle, the water baffle frame comprises an outer frame, a plurality of cross beams and a plurality of longitudinal beams, the outer frame is divided into a plurality of small frames by the cross beams and the longitudinal beams, and the baffle is arranged in each small frame.
A dust removal method using the surfactant bubble dust removal device comprises the following steps:
1) adding a surfactant and a foam fixing agent into water in a liquid storage tank, then starting a water pump and a pressure fan, sending the solution to a bubble nozzle through the water pump and a water inlet pipe, and sending airflow to the bubble nozzle through the pressure fan and an air inlet pipe; generating surfactant bubbles through a bubble nozzle;
2) starting a fan to enable the dust-containing airflow to pass through the shell, and adsorbing and capturing part of dust by high-concentration surfactant bubbles in the space of the device to form primary purification of the dust-containing airflow; when the bubbles which are not broken move to the filter plate, the bubbles are intercepted by the filter plate and form a water film on the filter plate; when the dust-containing airflow passes through, secondary interception is formed on dust in the air;
3) most of the water films on the filter plate are broken due to the penetration of wind flow and dust, so that a fine descending water flow is formed to clean the filter plate adsorbed with the dust, and the filter plate is ensured to have a continuous filtering function;
4) the air flow passing through the filter plate is subjected to secondary purification, then is dehydrated through a water baffle plate, and finally is discharged.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the method for removing dust by adopting the surfactant bubble adsorption has the advantages that the suspension time of bubbles in air is longer, the surface area is larger, the contact with dust is more sufficient, and the dust removal efficiency is higher.
Secondly, dust is reduced by adopting a method of absorbing dust by water mist in the traditional spray dust removal method, and when the atomization effect of a spray head is poor, the dust with small particle size is not strong in adsorption capacity. The invention adopts the surfactant bubbles for dust removal, has better adsorption effect on dust with all particle sizes in the space occupied by a single bubble, and improves the inhibition efficiency on fine dust; and the surface tension of the surfactant bubble liquid film is smaller, so that the surfactant bubble liquid film is more easily combined with dust.
And thirdly, the surfactant bubbles generated by the method have low water consumption and high water utilization rate, and the dust control cost of enterprises is effectively reduced.
Fourthly, the invention can realize three-stage purification of dusty air flow, and the dust removal efficiency is higher than that of the traditional wet dust removal.
Drawings
FIG. 1 is a schematic structural diagram of a surfactant bubble dedusting device of the present invention.
Fig. 2 is a structural view of the bubble generating module of the present invention.
FIG. 3 is a schematic structural view of a bubble jet head according to the present invention.
Fig. 4 is a schematic view of the structure of the filter plate of the present invention.
FIG. 5 is a schematic view of the water guard plate of the present invention.
In the figure: 1-a bubble generating assembly; 2-water inlet pipe; 3-a filter plate; 4-a water baffle; 5-a blower fan; 6, a water pump; 7-a liquid storage tank; 8-a fan; 9-a sewage draining outlet; 10-universal wheels; 201-a water inlet main pipe; 202-water inlet branch pipe; 203-bubble jet; 301-a water inlet; 302-an air inlet; 303-bubble outlet; 401-string grid; 402-string grid framework; 501-baffle plate; 502-water deflector frame.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in figure 1, the invention comprises a shell, a bubble generation assembly 1, a filter plate 3, a water baffle 4, a liquid storage tank 4, a blower 5, a water pump 6, a liquid storage tank 7 and a blower 8. The casing is the tubular structure of both ends open-ended, and the cross-section of casing is square, and the casing bottom is equipped with universal wheel 10. The bubble generation assembly 1, the filter plate 3, the water baffle 4 and the fan 8 are arranged in the shell, and the fan 8 adopts an axial flow fan.
As shown in fig. 2, the bubble generating assembly 1 comprises a plurality of bubble nozzles, an air inlet pipe and a water inlet pipe; the water inlet pipe comprises a water inlet main pipe 201 and a plurality of water inlet branch pipes 202 connected to the water inlet main pipe 201 in parallel; the intake pipe includes an intake manifold and a plurality of intake branch pipes connected in parallel to the intake manifold. As shown in fig. 3, the bubble jet includes a cylindrical nozzle body, one end of the nozzle body is provided with a water inlet 301 and an air inlet 302, and the other end is provided with a bubble outlet 303. A liquid channel and an air channel are arranged in the nozzle body, the two ends of the liquid channel are connected with the water inlet 301 and the air bubble outlet 303, and the two ends of the air channel are respectively connected with the air inlet 302 and the air bubble outlet 303. The water inlet 301 and the air inlet 302 of the bubble jet are respectively connected to the water inlet branch pipe 202 and the air inlet branch pipe. The water inlet header pipe 201 of the bubble generation assembly is connected with the outlet of the water pump, and the inlet of the water pump is communicated with the liquid storage tank; the air inlet main pipe of the bubble generation assembly is connected with the air outlet of the pressure fan. After entering from the water inlet 301, the foaming water drops to the foam outlet 303 along the internal pipeline, and the air sent by the blower 5 enters from the air inlet 302 and blows the liquid drops attached to the outlet to form bubbles to be blown out. The filter plate 3 is arranged between the bubble jet 203 and the water baffle 4. The working mode of the fan 8 is a draw-out type and is arranged close to the outlet of the shell.
As shown in fig. 4, the filter plate 3 includes a string grid 401 and a string grid frame 402, and the string grid frame 402 includes an outer frame, cross members, and longitudinal beams; the frame is square, and on the frame was installed at the both ends of crossbeam, the both ends of longeron were installed on the frame. The cross beams and the longitudinal beams are vertically arranged to divide the outer frame into four square small frames, and a string grid plate 401 is respectively arranged in each small frame. The string grid plate is formed by winding alloy steel wires with the diameter of 0.3 mm-0.5 mm on a small frame, and two ends of the small frame are respectively provided with a layer of string grid surface. Certain gaps are left among the steel wires, and the gaps are uniform.
As shown in fig. 5, the water baffle 4 includes a water baffle frame 502 and a baffle 501, the water baffle frame 502 includes an outer frame, a cross beam and a longitudinal beam, the cross beam and the longitudinal beam are vertically arranged to divide the outer frame into four small frames, and each small frame is provided with a baffle 501.
The dust removal method comprises the following steps:
1) adding a surfactant and a foam stabilizer into water in a liquid storage tank 7, then starting a water pump 6 and a pressure fan 5, sending the solution to a bubble nozzle through the water pump 6 and a water inlet pipe 2, and sending airflow to the bubble nozzle 203 through the pressure fan 5 and an air inlet pipe; generating surfactant bubbles by a bubble jet 203;
2) starting the fan 8 to enable the dust-containing air flow to pass through the shell, and enabling part of dust to be adsorbed and captured by high-concentration surfactant bubbles in the space of the device to form primary purification of the dust-containing air flow; when the bubbles which are not broken move to the filter plate 3, the bubbles are intercepted by the filter plate 3 and form a water film on the chord grid plate 401; because the water contains the surfactant, the surface tension of the water film is lower, the wetting performance is better, and the dust-containing airflow passes through the water film to form secondary interception to dust in the air;
3) most of the water films on the string grid plates 401 are broken due to the penetration of wind current and dust, so that fine descending water current is formed to clean the string grid plates 401 adsorbed with dust, and the string grid plates 401 are ensured to have continuous filtering function;
4) the air flow passing through the filter plate 401 is subjected to secondary purification, then is dehydrated through a water baffle plate, and finally is discharged.

Claims (7)

1. A surfactant bubble dust removal device is characterized in that: comprises a shell, a bubble generating assembly, a filter plate, a water baffle, a liquid storage tank, a blower, a water pump and a fan; the shell is of a cylindrical structure with openings at two ends; the bubble generating assembly, the filter plate, the water baffle and the fan are arranged in the shell; the bubble generation assembly comprises a plurality of bubble nozzles, an air inlet pipe and a water inlet pipe; the air inlet of the bubble nozzle is arranged on the air inlet pipe, the water inlet of the bubble nozzle is arranged on the water inlet pipe, and the air inlet pipe is connected with the air outlet of the blower fan; the water inlet pipe is connected with the outlet of the water pump, and the inlet of the water pump is communicated with the liquid storage tank; the filter plate is arranged between the bubble nozzle and the water baffle.
2. The surfactant bubble dedusting apparatus as set forth in claim 1, characterized in that: the cross section of the shell is rectangular, and universal wheels are arranged at the bottom of the shell.
3. The surfactant bubble dedusting apparatus as set forth in claim 1, characterized in that: the fan adopts an axial flow fan.
4. The surfactant bubble dedusting apparatus as set forth in claim 1, characterized in that: the bubble nozzle comprises a nozzle body, one end of the nozzle body is provided with a water inlet and an air inlet, and the other end of the nozzle body is provided with a bubble outlet; a liquid channel and a gas channel are arranged in the spray head body, the two ends of the liquid channel are connected with the water inlet and the bubble outlet, and the two ends of the gas channel are respectively connected with the air inlet and the bubble outlet.
5. The surfactant bubble dedusting apparatus as set forth in claim 1, characterized in that: the filter plate comprises a string grid plate frame and a string grid plate, wherein the string grid plate frame comprises an outer frame, a plurality of cross beams and a plurality of longitudinal beams; the outer frame is divided into a plurality of small frames by the cross beams and the longitudinal beams, and a string grid plate is arranged in each small frame.
6. The surfactant bubble dedusting apparatus as set forth in claim 1, characterized in that: the water baffle comprises a water baffle frame and baffles, the water baffle frame comprises an outer frame, a plurality of cross beams and a plurality of longitudinal beams, the outer frame is divided into a plurality of small frames by the cross beams and the longitudinal beams, and each small frame is internally provided with one baffle.
7. A dust removing method using the surfactant bubble dust removing device of any one of claims 1 to 6, comprising the steps of:
1) adding a surfactant and a foam fixing agent into water in a liquid storage tank, then starting a water pump and a pressure fan, sending the solution to a bubble nozzle through the water pump and a water inlet pipe, and sending airflow to the bubble nozzle through the pressure fan and an air inlet pipe; generating surfactant bubbles through a bubble nozzle;
2) starting a fan to enable the dust-containing airflow to pass through the shell, and adsorbing and capturing part of dust by high-concentration surfactant bubbles in the space of the device to form primary purification of the dust-containing airflow; when the bubbles which are not broken move to the filter plate, the bubbles are intercepted by the filter plate and form a water film on the filter plate; when the dust-containing airflow passes through, secondary interception is formed on dust in the air;
3) most of the water films on the filter plate are broken due to the penetration of wind flow and dust, so that a fine descending water flow is formed to clean the filter plate adsorbed with the dust, and the filter plate is ensured to have a continuous filtering function;
4) the air flow passing through the filter plate is subjected to secondary purification, then is dehydrated through a water baffle plate, and finally is discharged.
CN202010248262.5A 2020-04-01 2020-04-01 Surfactant bubble dust removal device and method Pending CN111249850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010248262.5A CN111249850A (en) 2020-04-01 2020-04-01 Surfactant bubble dust removal device and method

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Application Number Priority Date Filing Date Title
CN202010248262.5A CN111249850A (en) 2020-04-01 2020-04-01 Surfactant bubble dust removal device and method

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111672235A (en) * 2020-06-19 2020-09-18 安徽天顺环保设备股份有限公司 Bubble vibration dust removal device and implementation method thereof
CN113266901A (en) * 2021-05-26 2021-08-17 北京盈成汇达新能源有限公司 Coil pipe type energy-saving ice cold storage system based on energy storage
CN114100268A (en) * 2021-11-27 2022-03-01 柳州市海达新型材料科技股份有限公司 Method for treating ammonia-containing waste gas in sectional manner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205461535U (en) * 2016-02-03 2016-08-17 金易通科技(北京)股份有限公司 Foam type cloud and mist dust suppression device
CN208564619U (en) * 2018-06-20 2019-03-01 中钢集团马鞍山矿山研究院有限公司 A kind of wet scrubber for mine down-hole working face and tunnel treating flour dust

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205461535U (en) * 2016-02-03 2016-08-17 金易通科技(北京)股份有限公司 Foam type cloud and mist dust suppression device
CN208564619U (en) * 2018-06-20 2019-03-01 中钢集团马鞍山矿山研究院有限公司 A kind of wet scrubber for mine down-hole working face and tunnel treating flour dust

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111672235A (en) * 2020-06-19 2020-09-18 安徽天顺环保设备股份有限公司 Bubble vibration dust removal device and implementation method thereof
CN113266901A (en) * 2021-05-26 2021-08-17 北京盈成汇达新能源有限公司 Coil pipe type energy-saving ice cold storage system based on energy storage
CN113266901B (en) * 2021-05-26 2022-07-22 北京英沣特能源技术有限公司 Coil pipe type energy-saving ice cold storage system based on energy storage
CN114100268A (en) * 2021-11-27 2022-03-01 柳州市海达新型材料科技股份有限公司 Method for treating ammonia-containing waste gas in sectional manner

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Application publication date: 20200609

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