Multi-channel gas washing device

Abstract

The utility model provides a multi-channel gas washing device, and relates to the technical field of gas washing. The multi-channel gas washing device comprises a deposition disc, a reaction cylinder is fixedly connected to the upper surface of the deposition disc, a gas gathering cover is fixedly connected to the end, away from the deposition disc, of the reaction cylinder, a gas outlet pipe is connected to the inner surface of the gas gathering cover in a penetrating mode, and a communicating pipe is fixedly connected to the inner wall of the reaction cylinder. According to the multi-channel gas washing device, the alkali liquor conveying pipeline is connected with the liquid adding pipe until the liquid level of alkali liquor is flush with the bottom of the overflow pipe, so that the corrosion-resistant sleeve is completely immersed in the alkali liquor, then acid gas passes through the inner through pipe and is sprayed out of the alkali liquor from the interior of the corrosion-resistant sleeve through the liquid inlet pipe along the flow turning block; the acid mist directly enters the alkali liquor and forms an alkaline water leaching effect on the upper part of the tower under the action of air pressure, so that the aim of directly washing the acid gas is achieved, and the problems that the leaching effect is reduced and the maintenance cost is increased due to the fact that the spraying circulating pump is possibly blocked when the spraying circulating pump is used for purifying the acid gas are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of acid gas absorption treatment device for the production process of printing industry's heat-sensitive CTP plate material, specifically to a kind of neutralization and leaching device for hydrochloric acid gas and sulfuric acid gas in electrolytic roughening and anodic oxidation process for manufacturing aluminum-based support, specifically to a kind of multi-pass gas washing device, belong to gas washing technical field. BACKGROUND

[0002] The original acid mist treatment device uses the acidic gas collected from the production line to enter the tower from the bottom of the leaching device (tower type), the tower is filled with baffle and spherical filler to reduce the gas flow rate, and the alkaline neutralizing liquid is supplied to the spray pipe at the top of the tower by the liquid pump. The alkaline spray liquid reacts with the other rising acid and base in the descending process to realize the leaching and absorption of the acid gas.

[0003] However, in the use process of the traditional acid mist treatment device, the spray pipe is easily blocked due to the use of sodium hydroxide solution as the neutralizing liquid, which leads to poor spraying and unsatisfactory treatment effect, and even cannot work normally. Moreover, since the treatment device is located on the roof and outdoor, the liquid supply circulating pump often leaks, the motor is damaged, and the pipeline is blocked, which results in equipment maintenance and operation cost. The filler and baffle are also prone to scaling and aging, which not only affects the effect but also needs to be replaced regularly, increasing the cost. Therefore, we provide a kind of multi-pass gas washing device to solve the above problems. CONTENT OF THE INVENTION

[0004] To solve the above problems, the utility model provides a kind of multi-pass gas washing device, and the specific technical scheme is as follows:

[0005] A kind of multi-pass gas washing device, including deposition disc, the upper surface of deposition disc is fixedly connected with reaction cylinder, the end of reaction cylinder away from deposition disc is fixedly connected with gas gathering cap, the inner surface of gas gathering cap is connected with gas outlet pipe, the inner wall of reaction cylinder is fixedly connected with intercommunication pipe, the outer surface of intercommunication pipe is fixedly connected with liquid supplementing groove, the outer surface of liquid supplementing groove is slidably connected with airtight cover, the outer surface of liquid supplementing groove side away from reaction cylinder is connected with liquid adding pipe, the inner surface of liquid supplementing groove is fixedly connected with height measuring window, the outer surface of liquid supplementing groove is fixedly connected with reaction cylinder, the inner surface of reaction cylinder is fixedly connected with overflow pipe, the inner surface of reaction cylinder is fixedly connected with inner tube, one end of inner tube is fixedly connected with flow reversing block, the outer surface of flow reversing block is fixedly connected with the inner wall of reaction cylinder, the upper surface of flow reversing block is fixedly connected with flow guide frame, the outer surface of flow guide frame is fixedly connected with the inner wall of reaction cylinder, the lower surface of flow reversing block is connected with liquid inlet pipe, the inner wall of liquid inlet pipe is fixedly connected with anti-return valve, the end of liquid inlet pipe away from flow reversing block is fixedly connected with corrosion-resistant sleeve.

[0006] Preferably, the deposition disc is a circular disc, and a circular groove is arranged on the upper surface of the deposition disc, the center of the circular groove overlaps with the center of the deposition disc, and the diameter of the circular groove is equal to the inner diameter of the reaction cylinder.

[0007] Preferably, the reaction cylinder is a circular cylinder, and two circular holes of equal diameter are arranged on the outer circumferential surface of the reaction cylinder, and a through hole penetrating the inner wall of the reaction cylinder is arranged at a position below the two circular holes and two-thirds of the height of the liquid inlet pipe.

[0008] Preferably, the liquid supplement tank is a rectangular box, and two circular holes are arranged on the outer surface of the liquid supplement tank away from the reaction cylinder, and a round rectangular groove is arranged between the two circular holes, the height of the top end of the round rectangular groove is equal to the height of the overflow pipe, and a rectangular groove is arranged at the bottom end of the outer surface of the liquid supplement tank close to the reaction cylinder, and rectangular grooves are arranged on the opposite outer surfaces of the liquid supplement tank.

[0009] Preferably, the sealing cover is an inverted concave block, rectangular columns are arranged on the inner walls of both sides of the sealing cover, and a sealing strip is arranged on the inner wall of the top of the sealing cover.

[0010] Preferably, the height measuring window is a round rectangular plate made of transparent corrosion-resistant material, and the length of the round rectangular plate is equal to the height of the overflow pipe to the deposition disc.

[0011] Preferably, the flow diversion block is a square block, an L-shaped passage is arranged on the inner wall of the flow diversion block, a bent pipe with an included angle of 45 degrees is fixedly connected to the inner wall of the L-shaped passage, and the two ends of the bent pipe are in penetrating connection with the inner pipe and the liquid inlet pipe, respectively.

[0012] Preferably, the anti-reverse valve is an annular disc, and a one-way valve is fixedly connected to the inner surface of the anti-reverse valve, and the one-way valve is connected to the inner wall of the reaction cylinder through the inner pipe.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The multi-channel gas washing device connects the alkali liquid conveying pipeline with the liquid adding pipe, and the liquid surface of the alkali liquid is leveled with the bottom of the overflow pipe, so that the alkali liquid completely immerses the corrosion-resistant sleeve in the alkali liquid, then the acid gas passes through the inner pipe and the liquid inlet pipe in the corrosion-resistant sleeve in the alkali liquid through the flow diversion block, so that the acid mist directly enters the alkali liquid and forms an alkali water rinsing effect in the upper part of the tower under the action of gas pressure, thereby achieving the purpose of directly washing the acid gas, and solving the problem that the acid gas may be blocked in the spraying circulating pump during purification by the spraying circulating pump, thereby increasing the maintenance cost.

[0015] 2. The acid gas washed by the multi-channel gas washing device is discharged from the device through the gas outlet pipe at the upper end of the device, and because the length of the gas outlet pipe exceeds 15 meters, the alkali water attached to the gas will be attached to the inner wall of the gas outlet pipe in large quantities during the discharge process, thereby achieving the purpose of effectively collecting the alkali water and making it return, and solving the problems of high cost and inconvenient maintenance of the alkali water recovery method by filling a large amount of filler. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1The utility model discloses a whole structure schematic diagram.

[0017] Figure 2 The utility model discloses a cross section structure schematic diagram.

[0018] Figure 3 The utility model discloses an internal structure schematic diagram.

[0019] Figure 4 The utility model discloses an internal cross section structure schematic diagram.

[0020] The drawing illustrates: sedimentation tray 1, reaction cylinder 2, gas gathering cover 3, gas outlet pipe 4, intercommunication pipe 5, liquid supplementing groove 6, airtight cover 7, liquid supplementing pipe 8, height measuring window 9, overflow pipe 10, inner pipe 11, flow reversing block 12, flow guide frame 13, liquid inlet pipe 14, anti-reverse valve 15, corrosion-resistant sleeve 16. Specific implementation

[0021] The utility model will be further explained in connection with the drawings.

[0022] Please refer to Figure 1 And Figure 2 , sedimentation tray 1 is circular disc, and the upper surface of sedimentation tray 1 is provided with a circular groove, the center of the circular groove overlaps with the center of sedimentation tray 1, the diameter of the circular groove is equal to the inner diameter of reaction cylinder 2, and sedimentation tray 1 is used for closing the bottom of the device and simultaneously gathering sediments in the groove, so that the sediments are prevented from blocking intercommunication pipe 5, and reaction cylinder 2 is fixedly connected to the upper surface of sedimentation tray 1, reaction cylinder 2 is a circular cylinder, two circular holes with equal diameters are arranged on the outer circumferential surface of reaction cylinder 2, a through hole penetrating to the inner wall of reaction cylinder 2 is arranged at a position below the two circular holes and two-thirds of the height of liquid inlet pipe 14, and reaction cylinder 2 is used for storing liquid required for reaction and fixing the positions of part of the device.

[0023] The end, away from sedimentation tray 1, of reaction cylinder 2 is fixedly connected with gas gathering cover 3, and the inner surface of gas gathering cover 3 is connected with gas outlet pipe 4 in a penetrating mode, the height of gas outlet pipe 4 exceeds 15 meters, the inner wall of reaction cylinder 2 is fixedly connected with intercommunication pipe 5, the outer surface of intercommunication pipe 5 is fixedly connected with liquid supplementing groove 6, liquid supplementing groove 6 is a rectangular box, two circular holes are arranged on the outer surface of the side, away from reaction cylinder 2, of liquid supplementing groove 6, a round rectangular groove is arranged between the two circular holes, the height of the top end of the round rectangular groove is equal to the height of overflow pipe 10, a rectangular groove is arranged at the bottom of the outer surface of the side, close to reaction cylinder 2, of liquid supplementing groove 6, rectangular grooves are arranged on the opposite outer surfaces of liquid supplementing groove 6, and liquid supplementing groove 6 is used for supplementing alkali liquid in reaction cylinder 2 and providing necessary working environment for part of the device.

[0024] The outer surface of liquid supplementing groove 6 is slidably connected with airtight cover 7, airtight cover 7 is an inverted concave block, rectangular columns are arranged on the inner walls of the two sides of airtight cover 7, a sealing strip is arranged on the inner wall of the top of airtight cover 7, and airtight cover 7 is used for closing the reserved access hole of the device.

[0025] The liquid supplementing tank 6 is connected with the liquid supplementing pipe 8 through the outer surface of the liquid supplementing tank 6 far from the reaction cylinder 2, the inner surface of the liquid supplementing tank 6 is fixedly connected with a measuring window 9, the measuring window 9 is a round corner rectangular plate made of transparent corrosion-resistant material, the length of the round corner rectangular plate is equal to the height of the overflow pipe 10 to the deposition disc 1, and the measuring window 9 is externally provided with a scale line, the measuring window 9 is used for observing the liquid level in the reaction cylinder 2 from the liquid supplementing side through the principle of communicating vessels, the outer surface of the liquid supplementing tank 6 is fixedly connected with the reaction cylinder 2, and the inner surface of the reaction cylinder 2 is fixedly connected with the overflow pipe 10.

[0026] Please refer to Figure 3 and Figure 4 The inner surface of the reaction cylinder 2 is fixedly connected with the through inner pipe 11, one end of the through inner pipe 11 is fixedly connected with a flow diversion block 12, the flow diversion block 12 is a square block, the inner wall of the flow diversion block 12 is provided with an L-shaped passage, the inner wall of the L-shaped passage is fixedly connected with an elbow pipe with an included angle of 90 degrees, the two ends of the elbow pipe are respectively connected with the through inner pipe 11 and a liquid inlet pipe 14, and the flow diversion block 12 is used for protecting the elbow pipe in the flow diversion block 12, so that the elbow pipe is prevented from being damaged at the corner position under the double impacts of the inner and outer gases.

[0027] The outer surface of the flow diversion block 12 is fixedly connected with the inner wall of the reaction cylinder 2, the upper surface of the flow diversion block 12 is fixedly connected with a flow guide frame 13, the outer surface of the flow guide frame 13 is fixedly connected with the inner wall of the reaction cylinder 2, the lower surface of the flow diversion block 12 is connected with the liquid inlet pipe 14, the inner wall of the liquid inlet pipe 14 is fixedly connected with an anti-backflow valve 15, the anti-backflow valve 15 is an annular disc, the inner surface of the anti-backflow valve 15 is fixedly connected with a one-way valve, the one-way valve is communicated with the inner wall of the reaction cylinder 2 through the through inner pipe 11, and the anti-backflow valve 15 is used for preventing the through inner pipe 11 from sucking out the lye due to operation errors or gas pressure and the like, one end of the liquid inlet pipe 14 far from the flow diversion block 12 is fixedly connected with a corrosion-resistant sleeve 16, the height of the corrosion-resistant sleeve 16 is about 20-30 cm, and the corrosion-resistant sleeve 16 is made of a corrosion-resistant material.

[0028] In use, the lye (10-15% sodium hydroxide) conveying pipeline is connected with the liquid supplementing pipe 8 until the liquid level of the lye is leveled with the bottom of the overflow pipe 10, so that the lye completely immerses the corrosion-resistant sleeve 16 in the lye, then the acid gas is sprayed into the lye from the corrosion-resistant sleeve 16 through the through inner pipe 11, the flow diversion block 12 and the liquid inlet pipe 14, so that the acid mist directly enters the lye and forms an alkaline water rinsing effect in the upper part of the tower under the action of the gas pressure, and is discharged through the gas outlet pipe 4 at the upper end of the tower, and because the length of the gas outlet pipe 4 exceeds 15 meters, the alkaline water attached to the gas will be attached to the inner wall of the gas outlet pipe 4 in large quantities in the discharging process, so that the alkaline water is prevented from existing in the pipeline, and under the action of the communicating pipe 5, once the lye in the reaction cylinder 2 is consumed, the lye is added to the liquid supplementing tank 6, so that the liquid level is restored to the normal level.

[0029] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative efforts, and these embodiments will all fall within the protection scope of the claims of the present application.

Claims

1. A multi-pass gas washing device comprising a deposition disc (1), characterised in that: The upper surface of the deposition disc (1) is fixedly connected with a reaction cylinder (2), the far end of the reaction cylinder (2) from the deposition disc (1) is fixedly connected with a gas collecting cover (3), the inner surface of the gas collecting cover (3) is throughly connected with a gas outlet pipe (4), the inner wall of the reaction cylinder (2) is fixedly connected with a communication pipe (5), the outer surface of the communication pipe (5) is fixedly connected with a liquid supplementing tank (6), the outer surface of the liquid supplementing tank (6) is slidably connected with a sealing cover (7), the outer surface of the far side of the liquid supplementing tank (6) from the reaction cylinder (2) is throughly connected with a liquid supplementing pipe (8), the inner surface of the liquid supplementing tank (6) is fixedly connected with a height measuring window (9), the outer surface of the liquid supplementing tank (6) is fixedly connected with the reaction cylinder (2), the inner surface of the reaction cylinder (2) is fixedly connected with an overflow pipe (10), the inner surface of the reaction cylinder (2) is fixedly connected with an inner pipe (11), one end of the inner pipe (11) is fixedly connected with a flow reversing block (12), the outer surface of the flow reversing block (12) is fixedly connected with the inner wall of the reaction cylinder (2), the upper surface of the flow reversing block (12) is fixedly connected with a flow guide frame (13), the outer surface of the flow guide frame (13) is fixedly connected with the inner wall of the reaction cylinder (2), the lower surface of the flow reversing block (12) is throughly connected with a liquid inlet pipe (14), the inner wall of the liquid inlet pipe (14) is fixedly connected with an anti-reverse valve (15), the far end of the liquid inlet pipe (14) from the flow reversing block (12) is fixedly connected with a corrosion resistant sleeve (16).

2. A multi-pass gas scrubbing device according to claim 1, wherein: The deposition disc (1) is a circular disc, the upper surface of the deposition disc (1) is provided with a circular groove, the center of the circular groove is overlapped with the center of the deposition disc (1), and the diameter of the circular groove is equal to the inner diameter of the reaction cylinder (2).

3. A multi-pass gas scrubbing device according to claim 1, wherein: The reaction cylinder (2) is a circular cylinder, the outer circumferential surface of the reaction cylinder (2) is provided with two circular holes with equal diameters, and the lower sides of the two circular holes are provided with through holes penetrating to the inner wall of the reaction cylinder (2) at a position with a distance of one-half of the height of the liquid inlet pipe (14).

4. A multi-pass gas scrubbing device according to claim 1, wherein: The liquid supplementing tank (6) is a rectangular box, the outer surface of the far side of the liquid supplementing tank (6) from the reaction cylinder (2) is provided with two circular holes, a round rectangular groove is arranged between the two circular holes, the top end height of the round rectangular groove is level with the height of the overflow pipe (10), the bottom end of the outer surface of the side of the liquid supplementing tank (6) close to the reaction cylinder (2) is provided with a rectangular groove, and the outer surfaces of the two sides of the liquid supplementing tank (6) are provided with rectangular grooves.

5. A multi-pass gas scrubbing device according to claim 1, wherein: The sealing cover (7) is an inverted concave block, the inner walls of the two sides of the sealing cover (7) are provided with rectangular columns, and the inner wall of the top of the sealing cover (7) is provided with a sealing strip.

6. A multi-pass gas scrubbing device according to claim 1, wherein: The height measuring window (9) is a round rectangular plate made of transparent corrosion-resistant material, and the length of the round rectangular plate is equal to the height of the overflow pipe (10) to the deposition disc (1).

7. A multi-pass gas scrubbing device according to claim 1, wherein: The flow reversing block (12) is a square block, the inner wall of the flow reversing block (12) is provided with an L-shaped passage, the inner wall of the L-shaped passage is fixedly connected with an elbow pipe with an included angle of 90 degrees, and the two ends of the elbow pipe are throughly connected with the inner pipe (11) and the liquid inlet pipe (14) respectively.

8. A multi-pass gas scrubbing device according to claim 1, wherein: The anti-reverse valve (15) is an annular disc, the inner surface of the anti-reverse valve (15) is fixedly connected with a one-way valve, and the one-way valve is communicated with the inner wall of the reaction cylinder (2) through the inner pipe (11).

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