Water circulation waste gas treatment device

Abstract

The utility model discloses a water circulation waste gas treatment device which comprises a treatment tank, a waste gas pipe is installed on the lower side in the treatment tank, a spraying pipe is installed at the top of the waste gas pipe, meanwhile, an atomizing nozzle is fixedly installed at the bottom of the spraying pipe, and a waste gas opening is formed in the bottom of the waste gas pipe. The end of the spraying pipe penetrates through the side wall of the treatment tank to be fixedly connected with a liquid inlet pipe, the end of the waste gas pipe penetrates through the side wall of the treatment tank to be fixedly connected with a flue gas pretreatment cylinder, a filter cylinder is arranged in the flue gas pretreatment cylinder, and a filter screen is fixedly installed at the bottom of the filter cylinder. And meanwhile, the surface of the flue gas pretreatment barrel is screwed and fixed with the flue gas header pipe. According to the water circulation waste gas treatment device, spraying liquid can be in uniform contact work with dust-containing waste gas, and the contact area between gas and liquid can reach the maximum degree; under the condition of uniform contact, pollutant molecules in the waste gas are more easily diffused into the spraying liquid; the waste gas treatment effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment equipment field, concretely is a water circulation waste gas treatment device. BACKGROUND

[0002] Through the water circulation mode to the waste gas is handled, usually adopts the wet type waste gas treatment technology, its principle is to let waste gas and water contact fully, utilizes water's adsorption, dissolution and chemical reaction etc.

[0003] Spray method: water is sprayed into mist through nozzle, and the pollutants in waste gas are absorbed by water or react with water; the spray water can be recycled, and is replaced or treated regularly;

[0004] Packed tower method: a certain height of packing is filled in the packed tower, waste gas enters from the bottom, and water sprayed from the top is contacted in countercurrent; packing can increase the gas-liquid contact area and improve the treatment effect; water is recycled in the packed tower and continuously absorbs the pollutants in waste gas;

[0005] Water film dust collector: use the adsorption and filtration of water film to remove particulate matter and part of gaseous pollutants in waste gas; the water film dust collector is usually composed of a venturi tube and a cyclone dust collector, water is sprayed in the venturi tube to form a water film, and when waste gas passes through the water film, particulate matter is captured by the water film, and gaseous pollutants are absorbed by water;

[0006] Wet type electrostatic precipitator: the particulate matter in waste gas is charged by high-voltage electric field, and then captured by water film under the action of electric field; the wet type electrostatic precipitator can efficiently remove particulate matter in waste gas, and also remove part of gaseous pollutants;

[0007] Take the spray method as an example: if waste gas and spray liquid cannot be uniformly contacted, the gas-liquid contact area will be reduced; uneven contact will greatly reduce the absorption efficiency; from the mass transfer point of view, according to the double membrane theory, the mass transfer resistance between gas and liquid will increase due to the reduction of contact area, so that the transfer of pollutants from gas phase to liquid phase is hindered. UTILITY MODEL CONTENTS

[0008] The utility model aims at providing a water circulation waste gas treatment device to solve the defects mentioned in the above background technology.

[0009] In order to achieve the above object, a water circulation waste gas treatment device is provided, comprising a treatment tank, a waste gas pipe is installed on the inside lower side of the treatment tank, and a spray pipe is installed on the top of the waste gas pipe, while an atomizing nozzle is fixedly installed on the bottom of the spray pipe, and a waste gas port is opened on the bottom of the waste gas pipe, the end of the spray pipe is fixedly connected with a liquid inlet pipe through the side wall of the treatment tank, and the end of the waste gas pipe is fixedly connected with a flue gas pretreatment cylinder through the side wall of the treatment tank, a filter cylinder is arranged in the flue gas pretreatment cylinder, and a filter screen is fixedly installed on the bottom of the filter cylinder, while the surface of the flue gas pretreatment cylinder is screw-fixed with a flue main pipe.

[0010] Preferably, the waste gas pipe and the spray pipe are oppositely arranged, and a plurality of groups of waste gas ports are uniformly opened on the bottom of the waste gas pipe, and the waste gas ports are arranged in a strip shape, and the distance between adjacent two groups of waste gas ports is consistent.

[0011] Preferably, a plurality of groups of atomizing nozzles are screw-fixed on the bottom of the spray pipe, and the distance between adjacent two groups of atomizing nozzles is consistent, and a circulation pipe is installed on the right side of the bottom of the treatment tank.

[0012] Preferably, three groups of butt joints are uniformly opened on the circumferential inner wall surface of the flue gas pretreatment cylinder, and three groups of butt seats are fixedly arranged on the circumferential outer wall of the filter cylinder, the size of the butt seat is matched with that of the butt joint, and the butt seat is inserted into the inside of the butt joint.

[0013] Preferably, the section of the butt seat and the butt joint is arranged in a rectangular shape, a positioning piece is fixedly arranged on the outside of the filter cylinder, and the positioning piece covers the end surface of the flue gas pretreatment cylinder and is fixed by a plurality of bolts.

[0014] Preferably, a locking piece is welded and fixed on the end of the flue main pipe, the locking piece is screw-fixed with the positioning piece, the locking piece and the positioning piece are arranged in a circular shape, and six groups of through holes are uniformly opened on the locking piece and the positioning piece, and six groups of screw holes are uniformly opened on the section of the flue gas pretreatment cylinder.

[0015] Preferably, a sealing gasket is arranged between the locking piece and the positioning piece, and the locking piece and the positioning piece are sealed by the sealing gasket, and the diameter of the positioning piece, the sealing gasket and the flue gas pretreatment cylinder is consistent.

[0016] Compared with the prior art, the water circulation waste gas treatment device has the following beneficial effects:

[0017] 1. The dust-containing flue gas is filtered from the flue main pipe, the flue gas pretreatment cylinder and the filter screen in the flue gas pretreatment cylinder, so that the large particle materials in the flue gas are intercepted, and the pressure of subsequent spray flue gas impurity removal is reduced.

[0018] 2. The utility model discloses a waste gas enters to the inside of waste gas pipe, and from the even respectively of waste gas pipe bottom multiple sets of waste gas port carries out and sprays, and the spray liquid from the liquid inlet pipe enters to the inside of the spray pipe, and from a large amount of atomizing nozzle carries out in the form of atomization, makes the spray liquid can with dust-containing waste gas even contact work, the contact area between gas and liquid can reach the maximum degree, under the condition of even contact, the pollutant molecule in waste gas is easier to diffuse into the spray liquid, improves the treatment effect to waste gas. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front view schematic diagram of the utility model structure;

[0020] Figure 2 It is the bottom view of Figure 1 ;

[0021] Figure 3 It is the bottom view of waste gas pipe, spray pipe installation structure;

[0022] Figure 4 It is the schematic diagram of flue gas pretreatment cylinder;

[0023] Figure 5 It is the sectional view of Figure 4 ;

[0024] Marked number in drawing: 1, processing jar;2, circulating pipe;3, waste gas pipe;31, waste gas port;4, spray pipe;41, atomizing nozzle;5, liquid inlet pipe;6, flue gas pretreatment cylinder;61, butt joint groove;62, butt joint seat;63, filter cylinder;64, filter screen;65, positioning piece;66, sealing gasket;67, locking piece;68, smoke main pipe. DETAILED DESCRIPTION

[0025] Please refer to Figures 1-5 , the utility model provides a kind of water circulation waste gas treatment device, including processing jar 1, the inside lower side of processing jar 1 is equipped with waste gas pipe 3, and the top of waste gas pipe 3 is equipped with spray pipe 4, while the bottom of spray pipe 4 is fixedly installed with atomizing nozzle 41, and the bottom of waste gas pipe 3 is equipped with waste gas port 31, spray pipe 4 end is fixedly connected with liquid inlet pipe 5 by passing through the lateral wall of processing jar 1, and waste gas pipe 3 end is fixedly connected with flue gas pretreatment cylinder 6 by passing through the lateral wall of processing jar 1, the inside of flue gas pretreatment cylinder 6 is provided with filter cylinder 63, and the bottom of filter cylinder 63 is fixedly installed with filter screen 64, while the surface of flue gas pretreatment cylinder 6 is fixed with smoke main pipe 68 by screwing.

[0026] Working principle: when in use, the dust-containing flue gas is filtered by the filter screen 64 in the flue gas pretreatment cylinder 6, so that large particles in the flue gas are intercepted, reducing the pressure of subsequent flue gas spraying and impurity removal. At the same time, the waste gas enters the inside of the waste gas pipe 3 and is sprayed from the evenly distributed multiple groups of waste gas outlets 31 at the bottom of the waste gas pipe 3. At the same time, the spraying liquid enters the inside of the spraying pipe 4 from the liquid inlet pipe 5 and is sprayed in the form of atomization from a large number of atomizing nozzles 41, so that the spraying liquid can uniformly contact the dust-containing waste gas. When the waste gas and the spraying liquid are uniformly contacted, the contact area between the gas and the liquid can reach the maximum degree; under the condition of uniform contact, the pollutant molecules in the waste gas are more easily diffused into the spraying liquid; the treatment effect of the waste gas is improved. The treated waste gas can be discharged from the exhaust pipe at the top of the treatment tank 1 and enter the next processing procedure. The waste water can be discharged from the circulating pipe 2 and then recycled into the inside of the liquid inlet pipe 5 by the booster pump, realizing the waste gas treatment by water circulation. After a period of use, water needs to be replaced.

[0027] As a preferred embodiment, the waste gas pipe 3 and the spraying pipe 4 are arranged opposite to each other, and the bottom of the waste gas pipe 3 is evenly provided with multiple groups of waste gas outlets 31. The waste gas outlets 31 are arranged in a strip shape, and the distance between adjacent two groups of waste gas outlets 31 is consistent.

[0028] A plurality of groups of atomizing nozzles 41 are evenly screwed and installed at the bottom of the spraying pipe 4, and the distance between adjacent two groups of atomizing nozzles 41 is consistent. A circulating pipe 2 is installed at the bottom right side of the treatment tank 1.

[0029] As a preferred embodiment, three groups of butt joints 61 are evenly provided on the circumferential inner wall surface of the flue gas pretreatment cylinder 6, and three groups of butt seats 62 are fixed on the circumferential outer wall of the filter cylinder 63. The size of the butt seat 62 is matched with the size of the butt joint 61, and the butt seat 62 is inserted into the inside of the butt joint 61.

[0030] The butt seat 62 and the butt joint 61 are both arranged in a rectangular shape, and a positioning piece 65 is fixedly arranged on the outside of the filter cylinder 63. The positioning piece 65 covers the end face of the flue gas pretreatment cylinder 6 and is fixed by a plurality of bolts.

[0031] As a preferred embodiment, a locking piece 67 is welded and fixed at the end of the flue gas main pipe 68, and the locking piece 67 is screwed and fixed with the positioning piece 65. The locking piece 67 and the positioning piece 65 are both arranged in a circular shape, and six groups of through holes are evenly provided on the locking piece 67 and the positioning piece 65. Six groups of screw holes are evenly provided on the cross section of the flue gas pretreatment cylinder 6.

[0032] A sealing gasket 66 is arranged between the locking piece 67 and the positioning piece 65, and the locking piece 67 and the positioning piece 65 are sealed by the sealing gasket 66. The positioning piece 65, the sealing gasket 66 and the flue gas pretreatment cylinder 6 have the same diameter.

Claims

1. A water-circulation exhaust gas treatment device comprising a treatment tank (1), characterized in that: The inside lower side of the treatment tank (1) is provided with a waste gas pipe (3), and the top of the waste gas pipe (3) is provided with a spray pipe (4), and the bottom of the spray pipe (4) is fixedly provided with an atomizing nozzle (41), and the bottom of the waste gas pipe (3) is provided with a waste gas port (31), and the end of the spray pipe (4) penetrates through the side wall of the treatment tank (1) and is fixedly connected with the liquid inlet pipe (5), and the end of the waste gas pipe (3) penetrates through the side wall of the treatment tank (1) and is fixedly connected with the flue gas pretreatment cylinder (6), and the inside of the flue gas pretreatment cylinder (6) is provided with a filter cylinder (63), and the bottom of the filter cylinder (63) is fixedly provided with a filter screen (64), and the surface of the flue gas pretreatment cylinder (6) is screw-fixed with the flue gas main pipe (68).

2. A water recycling exhaust treatment device according to claim 1, characterised in that: The waste gas pipe (3) and the spray pipe (4) are oppositely arranged, and a plurality of waste gas ports (31) are uniformly arranged on the bottom of the waste gas pipe (3), and the waste gas ports (31) are arranged in a strip shape, and the distance between the adjacent two groups of waste gas ports (31) is consistent.

3. A water recycling exhaust treatment device according to claim 1, characterised in that: The bottom of the spray pipe (4) is screw-fixed with a plurality of atomizing nozzles (41), and the distance between the adjacent two groups of atomizing nozzles (41) is consistent, and the bottom right side of the treatment tank (1) is provided with a circulating pipe (2).

4. A water recycling exhaust treatment device according to claim 1, characterised in that: The circumferential inner wall surface of the flue gas pretreatment cylinder (6) is uniformly provided with three groups of butt joints (61), and the circumferential outer wall of the filter cylinder (63) is uniformly fixed with three groups of butt seats (62), the size of the butt seat (62) is matched with the butt joint (61), and the butt seat (62) is inserted into the inside of the butt joint (61).

5. A water recycling exhaust treatment device according to claim 4, characterised in that: The section of the butt seat (62) and the butt joint (61) is rectangular, and the outer side of the filter cylinder (63) is fixedly provided with a positioning piece (65), and the positioning piece (65) covers the end face of the flue gas pretreatment cylinder (6) and is fixed by a plurality of bolts.

6. A water recycling exhaust treatment device according to claim 1, characterised in that: The end of the flue gas main pipe (68) is welded with a locking piece (67), and the locking piece (67) is screw-fixed with the positioning piece (65), and the locking piece (67) and the positioning piece (65) are circular, and six groups of through holes are uniformly arranged on the locking piece (67) and the positioning piece (65), and six groups of screw holes are uniformly arranged on the cross section of the flue gas pretreatment cylinder (6).

7. A water recycling exhaust treatment device according to claim 6, characterised in that: The locking piece (67) and the positioning piece (65) are provided with a sealing gasket (66), and the locking piece (67) and the positioning piece (65) are sealed by the sealing gasket (66), and the diameter of the positioning piece (65), the sealing gasket (66) and the flue gas pretreatment cylinder (6) is consistent.

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