CN210171077U - Water film dust remover - Google Patents

Water film dust remover Download PDF

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Publication number
CN210171077U
CN210171077U CN201920716044.2U CN201920716044U CN210171077U CN 210171077 U CN210171077 U CN 210171077U CN 201920716044 U CN201920716044 U CN 201920716044U CN 210171077 U CN210171077 U CN 210171077U
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China
Prior art keywords
dust
absorption liquid
air
water
tower body
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CN201920716044.2U
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Inventor
Qiyun Li
李启云
Chaolian Liu
刘超莲
Jiehao Wu
吴杰豪
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Hunan Yun Ping Environmental Protection Technology Co Ltd
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Hunan Yun Ping Environmental Protection Technology Co Ltd
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Abstract

The utility model discloses a water film dust remover. The water dust scrubber includes at least one-level dust removal unit, the dust removal unit includes that the bottom is used for the tower body of splendid attire absorption liquid, locates the air-supply line and the exhaust pipe of tower body, by the air-supply line gets into the internal air current of tower is the malleation, the air-supply line sets up with absorption liquid level interval, and its part that is close to the absorption liquid is perpendicular with absorption liquid level. The water film dust remover provided by the utility model has the advantages of low energy consumption, small air pipe resistance and simple structure.

Description

Water film dust remover
[ technical field ] A method for producing a semiconductor device
The utility model relates to an atmosphere pollution administers technical field, concretely relates to water film deduster.
[ background of the invention ]
The dust removing equipment is equipment for separating dust from flue gas, and is also called a dust remover or dust removing equipment. In the prior art, the types of dust removing equipment are more, such as cloth bag dust removal, gravity dust removal, electrostatic dust removal, water film dust remover and the like.
The bag-type dust collector is a dry high-efficiency dust collector, and is a dust collector for collecting solid particles in dust-containing gas by utilizing a bag-type filter element made of fiber braided fabric. The cloth bag dust removal effect is good, but the cloth bag needs to be cleaned frequently, otherwise, the pressure is increased sharply due to the blockage of meshes of the cloth bag, and the dust removal effect and the operation of equipment are influenced.
Gravity dust removal is the simplest method for separating dust from gas flow, and is usually carried out in a box-type dust removal chamber, the dust removal efficiency of the gravity dust removal is related to factors such as gas flow velocity, size of a settling chamber, density and particle size of solid particles, density of gas and the like, and the gravity dust removal is only suitable for separating solid particles with larger particle size from the gas. The effect of gravity dust removal is limited.
Electrostatic dust collection is a method for collecting dust from gas, in which dust-containing gas is electrically separated when passing through a high-voltage electrostatic field, and dust particles are charged negatively in combination with negative ions and then discharged and deposited on the surface of an anode.
The water film dust remover makes use of the contact of water and the particles in the waste gas to wet the particles and increase the gravity thereof, so that the particles are settled and collected. Compared with the dust removal equipment, the water film dust remover has the advantages of simple equipment structure, low investment and unique advantages in the field of atmospheric pollution treatment. However, the existing water film dust collector mainly adopts a spray water curtain form or a micro-pore plate film forming form to contact particulate matters in gas with a water medium, and has the following defects: 1) the structure of the dust remover is complex, and a spraying system is required to be arranged; 2) the arranged spraying system or the micro-pore plate film forming system can increase the pressure loss of the air pipeline; 3) the water film dust remover has higher energy consumption and is mainly embodied in the arrangement of a spray pump; the pressure loss of the air pipeline needs to increase the pressure head of the fan.
Therefore, it is necessary to provide a water film dust collector with low energy consumption, small air duct resistance and simple structure to solve the above technical problems.
[ Utility model ] content
The utility model aims at overcoming the technical problem and providing a water film dust remover with low energy consumption, small air pipe resistance and simple structure.
The technical scheme of the utility model is that:
the utility model provides a water dust scrubber, includes at least one-level dust removal unit, the dust removal unit includes that the bottom is used for the tower body of splendid attire absorption liquid, locates the air-supply line and the exhaust pipe of tower body, by the air-supply line gets into air current in the tower body is the malleation, the air-supply line sets up with absorption liquid level interval, and its part that is close to the absorption liquid is perpendicular with the absorption liquid level.
Furthermore, the distance between the air inlet pipe and the liquid level of the absorption liquid is 5-10 cm.
Furthermore, the air flow velocity of the air inlet pipe is 5-10 m/s.
Further, the depth of the absorption liquid is 30-50 cm.
Further, each stage of the dust removal unit also comprises a compensation device for automatically supplementing absorption liquid.
Furthermore, the number of the dust removal units is two or more than two, and the exhaust pipe of the previous dust removal unit is connected with the air inlet pipe of the next dust removal unit.
Further, the resistance of the single-stage dust removal unit is less than or equal to 20 Pa.
Furthermore, each stage of the dust removal unit also comprises a slag discharge device connected with the bottom of the tower body.
Compared with the prior art, the utility model provides a water film deduster, beneficial effect lies in:
one, the utility model provides a water film deduster, through with the absorption liquid splendid attire in the tower body bottom, waste gas passes through the intake pipe and enters into in the tower body, and the air current flow direction is perpendicular with the absorption liquid level. Because the waste gas is conveyed by the fan and is in positive pressure in the flowing process, the waste gas enters the tower body through the air inlet pipe, and the positive pressure airflow impacts the water surface, so that dust particles in the waste gas are in contact with water and directly enter the water body, and the dust removal effect is achieved. According to the characteristics of particle size, hygroscopicity and the like, the dust removal efficiency of the single-stage dust remover is 40-70%; after multistage series connection, the utility model provides a water film deduster's dust collection efficiency can reach more than 98%.
Compared with the water film dust collector in the prior art, the water film dust collector provided by the utility model has no spraying system and zero energy consumption in the system operation process; the utility model provides a water film deduster, system resistance is little, and the whole set of system descends more than 50% than traditional water film deduster resistance.
Two, the utility model provides a water film deduster, simple structure, through modular design, equipment investment cost is low, need not the plant maintenance.
Thirdly, the utility model provides a water film deduster, owing to do not have spray system, no water smoke produces at the dust removal in-process, consequently need not to design defogging device in the system, has further reduced the resistance of system.
Fourthly, the utility model provides a water film deduster, during the dust directly got into the absorption liquid, the phenomenon of no secondary raise dust.
[ description of the drawings ]
Fig. 1 is a schematic structural view of a water film dust collector provided by the present invention;
FIG. 2 is a schematic structural diagram of a single-stage dust removal unit in the water film dust remover shown in FIG. 1.
[ detailed description ] embodiments
The present invention will be further explained by the following embodiments.
Please refer to fig. 1, which is a schematic structural diagram of a water dust scrubber according to the present invention. The water dust scrubber 100 of this embodiment includes a plurality of stages of dust-collecting units 11 connected in series, and two adjacent stages of dust-collecting units are connected in series, so that the unpurified dust in the previous stage of dust-collecting unit enters the next stage of dust-collecting unit for treatment. The direction of the arrows in the drawings indicates the direction of the air flow.
The utility model discloses in, dust removal unit 11 adopts the modularized design, selects the progression of dust removal unit according to the characteristic of waste gas in using to make dust collection efficiency reach the optimum. For convenience of description, the structure of the single-stage dust removing unit 11 will be described in detail first.
Please refer to fig. 2, which is a schematic structural diagram of a single-stage dust removing unit in the water dust scrubber shown in fig. 1. The dust removing unit 11 includes a tower body 111, an air inlet duct 112 and an air outlet duct 113 provided in the tower body 111. It should be noted that the air inlet pipe 112 of the first stage dust removing unit 11 is connected to a fan (not shown), and the fan transmits the exhaust gas into the tower body 111, and the fan is a positive pressure fan, so that the air flow entering the tower body is in positive pressure.
The bottom of the tower body 111 is used for containing absorption liquid, wherein the main component of the absorption liquid is water, and other medicaments can be added into the water according to the characteristics of the waste gas. For example, depending on the characteristics of the exhaust gas, for example, when the exhaust gas contains an acidic gas or a basic gas, an agent corresponding to the exhaust gas, for example, a corresponding basic substance or an acidic substance, may be added to the water.
The utility model discloses in, the degree of depth of absorption liquid is 30-50cm, can supply the absorption liquid according to the actual liquid level degree of depth in the application to guarantee the liquid level requirement. Correspondingly, each stage of dust removal unit further comprises a supplementing device (not shown) for automatically supplementing the absorption liquid, specifically, the supplementing device comprises a sensor arranged on the tower body 111 and used for detecting the liquid level of the absorption liquid, a water supplementing pipe communicated with an external water source and extending into the tower body 111, and an automatic valve arranged on the water supplementing pipe, when the sensor detects that the liquid level of the absorption liquid is lower than a set value, the automatic valve is opened to supplement water into the tower body; when the water level is detected to reach the set value, the automatic valve is closed, and the supplement is stopped.
Based on the utility model provides a water dust scrubber 100's design principle requires the air current that gets into tower body 111 to strike absorption liquid, consequently, the utility model discloses in, it is perpendicular with absorption liquid level to get into the air current in tower body 111 by air-supply line 112, makes the air current carry out the front impact to absorption liquid. In the design structure, the portion of the air inlet pipe 112 close to the absorption liquid is designed to be perpendicular to the liquid level of the absorption liquid, and the air inlet pipe 112 is spaced from the liquid level of the absorption liquid, so that the air inlet pipe 112 is not inserted into the absorption liquid. By designing the air inlet duct 112 to be spaced from the liquid surface of the absorption liquid, the air resistance of the air inlet duct can be reduced, thereby reducing the resistance of the entire dust removal system. Preferably, the airflow velocity of the air inlet pipe 112 is controlled to be 5-10m/s, and the distance between the air inlet pipe 112 and the liquid level of the absorption liquid is designed to be 5-10cm, so that the impact force between the airflow and the absorption liquid is improved, and the efficiency of the absorption liquid for capturing dust particles is improved. The utility model discloses in, the wind speed of air-supply line 112 is adjusted through fan frequency conversion control and is realized.
In the present invention, the portion of the air inlet pipe 112 located in the tower body 111 can be designed into a straight pipe shape, and can also be designed into a bent pipe shape. In order to ensure that the air flow is perpendicular to the liquid level of the absorption liquid, correspondingly, when the air inlet pipe 112 is in a bent pipe shape, one end of the outlet thereof is arranged perpendicular to the liquid level of the absorption liquid.
The exhaust pipe 113 is disposed at a position higher than the liquid level, and the exhaust gas after dust removal treatment is discharged from the exhaust pipe 113. When the dust removing unit 11 is multi-stage, the exhaust duct 113 of the previous stage is connected to the intake duct of the next stage. And the exhaust pipe 113 of the last stage dust removing unit is directly exhausted to the atmosphere or the next waste gas treatment process.
The water film dust remover provided by the utility model adopts positive pressure air inlet, and the system has no spraying system, and the resistance of a single dust removing unit is not higher than 20 Pa; and after the multistage dust removal units are connected in series, the resistance of the whole set of water film dust remover is reduced by more than 50% compared with the resistance of the water film dust remover in the prior art.
The utility model provides a water dust scrubber, the dust granule in the waste gas directly gets into the water with water contact, can be in bottom deposit slag charge after using for a long time, for the liquid level that influences the absorption liquid that avoids the formation of material sediment, reduces the absorption liquid to the capture efficiency of dust, consequently, preferred, every level of dust removal unit 11 still includes the slag charge discharging equipment (not shown) of being connected bottom the tower body. Specifically, the slag discharging device comprises a drain pipe (not shown) connected with the bottom of the tower body and a drain pump (not shown) connected with the drain pipe, and the drain pump is started to discharge the slag at the bottom of the tower body.
Based on the above description of the water dust scrubber and the single-stage dust removal unit, in practical applications, the number of stages of the dust removal unit in the water dust scrubber can be determined according to the characteristics of the exhaust gas, such as the content of dust particles, the size of the dust particles, the type of the dust particles (the moisture absorption characteristics of the dust particles), and other factors. Of course, in order to improve the dust removal efficiency, it is preferable that the number of stages of the dust removal unit in the water film dust collector is two or more. The water film dust collector provided by the utility model has the dust collection efficiency of 40-70% according to the characteristics of particle size, hygroscopicity and the like; after multistage series connection, the utility model provides a water film deduster's dust collection efficiency can reach more than 98%, and dust collection efficiency is excellent.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims (8)

1. The utility model provides a water dust scrubber, its characterized in that, includes at least one-level dust removal unit, dust removal unit includes the bottom and is used for the tower body of splendid attire absorption liquid, locates the air-supply line and the exhaust pipe of tower body, by the air-supply line gets into air current in the tower body is the malleation, the air-supply line sets up with absorption liquid level interval, and its part that is close to the absorption liquid is perpendicular with absorption liquid level.
2. The water dust scrubber according to claim 1, wherein the distance between the air inlet pipe and the liquid level of the absorption liquid is 5-10 cm.
3. The water dust scrubber as recited in claim 1, wherein the air flow velocity of the air inlet pipe is 5-10 m/s.
4. The water dust scrubber according to claim 1, wherein the depth of the absorption liquid is 30-50 cm.
5. The water dust scrubber according to claim 4, wherein each stage of the dust-removing unit further comprises a compensation device for automatically supplementing the absorption liquid.
6. The water dust scrubber according to any one of claims 1-5, wherein the number of the dust-removing units is two or more than two, and the exhaust duct of the previous dust-removing unit is connected with the intake duct of the next dust-removing unit.
7. A water dust scrubber according to any one of claims 1-5, characterized in that the resistance of the dust-collecting unit of a single stage is less than or equal to 20 Pa.
8. The water dust scrubber according to any one of claims 1-5, wherein each stage of the dust removal unit further comprises a slag discharge device connected to the bottom of the tower body.
CN201920716044.2U 2019-05-16 2019-05-16 Water film dust remover Active CN210171077U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920716044.2U CN210171077U (en) 2019-05-16 2019-05-16 Water film dust remover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920716044.2U CN210171077U (en) 2019-05-16 2019-05-16 Water film dust remover

Publications (1)

Publication Number Publication Date
CN210171077U true CN210171077U (en) 2020-03-24

Family

ID=69833652

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920716044.2U Active CN210171077U (en) 2019-05-16 2019-05-16 Water film dust remover

Country Status (1)

Country Link
CN (1) CN210171077U (en)

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