CN215939530U

CN215939530U - Electrolytic aluminum flue gas desulfurization device

Info

Publication number: CN215939530U
Application number: CN202121808209.2U
Authority: CN
Inventors: 何文; 严昌令; 李建军; 胡毅
Original assignee: Meishan Aostar Aluminum Co ltd
Current assignee: Meishan Aostar Aluminum Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-03-04
Anticipated expiration: 2031-08-04

Abstract

The utility model discloses an electrolytic aluminum flue gas desulfurization device which comprises a smoke collecting hood and a desulfurization tower, wherein the smoke collecting hood and the desulfurization tower are connected through a flue, a fan is arranged on the flue, the smoke collecting hood is wrapped and arranged above an electrolytic bath, a flow dividing pipe is arranged at the bottom of the desulfurization tower, alkaline desulfurization liquid is arranged above the flow dividing pipe, the flow dividing pipe comprises an inlet pipe connected with the flue, a one-way valve is arranged at the inlet pipe, the inlet pipe is connected with two branches, one branch is a first transverse pipe, the other branch is a second transverse pipe, a plurality of vertical pipes are communicated and arranged between the first transverse pipe and the second transverse pipe, and a plurality of flow dividing holes with upward openings are formed in the first transverse pipe, the second transverse pipe and the vertical pipes. The whole smoke hood of the utility model collects the smoke and prevents leakage, and the shunt pipe is provided with a plurality of shunt holes, so that the smoke and the alkaline desulfurization liquid can fully react, the desulfurization rate is greatly improved, and the smoke purification effect is improved.

Description

Electrolytic aluminum flue gas desulfurization device

Technical Field

The utility model relates to the field of electrolytic aluminum, in particular to an electrolytic aluminum flue gas desulfurization device.

Background

In the electrolytic aluminum industry, aluminum oxide melt is used as electrolyte in the aluminum electrolysis process, a carbon material is used as an electrode for electrolysis, liquid metal aluminum is separated out on a cathode, and anode gas mainly comprising CO2 is generated on an anode. Meanwhile, the carbon block contains S element, SO2 is also contained in the electrolysis flue gas besides hydrogen fluoride, fluoride and dust.

The existing flue gas desulfurization device has insufficient flue gas absorption, and a part of generated flue gas leaks outside, so that the environment and the health of workers are seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the electrolytic aluminum flue gas desulfurization device which has the advantages of full flue gas recovery, full reaction of flue gas and desulfurization solution, high desulfurization rate and higher quality of discharged gas.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides an electrolytic aluminum flue gas desulphurization device, includes collection petticoat pipe and desulfurizing tower, and collection petticoat pipe and desulfurizing tower pass through the flue and connect, are equipped with the fan on the flue, collection petticoat pipe parcel sets up in the electrolysis trough top, and the desulfurizing tower bottom is equipped with the shunt tubes, and the shunt tubes top is alkaline doctor solution, the shunt tubes includes the inlet tube of being connected with the flue, and inlet tube department is equipped with the check valve, two branches of inlet tube connection, and a branch is violently managed for one number, and another branch is violently managed for two numbers, violently manages for one number and communicates between violently managing with two numbers and is equipped with a plurality of standpipes, violently manage for one number one, violently manage for two numbers, all be equipped with the ascending reposition of redundant personnel hole of redundant personnel of a plurality of openings on the standpipe.

Preferably, a plurality of vertical smoke absorbing pipes with downward openings are uniformly arranged in the smoke collecting hood, and the smoke absorbing pipes are connected with the flue.

Preferably, the opening of the smoking pipe is a bell mouth.

Preferably, the desulfurizing tower is internally provided with a spray pipe, the spray pipe is positioned above the alkaline desulfurization solution and is connected with the alkaline desulfurization solution through a connecting pipe, the connecting pipe is provided with a water pump, and the spray pipe is uniformly provided with a plurality of spray heads.

Preferably, an activated carbon adsorption layer is arranged above the spray pipe.

Preferably, an exhaust port is arranged above the desulfurizing tower, and a flue gas filtering layer is arranged at the exhaust port.

Preferably, an air quality sensor is arranged in the desulfurizing tower.

The utility model has the beneficial effects that:

(1) whole petticoat pipe is with the flue gas gathering, prevent the leakage, the flue gas is discharged to the desulfurizing tower, the check valve prevents that alkaline doctor solution from flowing back to the flue, set up a plurality of diffluence holes on the shunt tubes, the flue gas is along a plurality of diffluence holes during the alkaline doctor solution of advancing, make flue gas and alkaline doctor solution can fully react, the desulfurization rate has been improved greatly, the flue gas purification effect is improved, setting up of violently managing No. one and No. two violently managing of two branches makes the flue gas can evenly get into the shunt tubes in two directions, it is less to prevent to keep away from the diffluence hole exhaust of inlet tube, it is inhomogeneous to prevent the diffluence hole exhaust.

(2) Alkaline desulfurization liquid, secondary spray, active carbon adsorption layer, flue gas filter layer multichannel desulfurization process improve the desulfurization effect greatly, guarantee the exhaust gas quality.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a shunt tube configuration;

in the figure, 1-smoke collecting hood, 2-flue, 3-smoke absorbing pipe, 4-fan, 5-spray header, 6-desulfurizing tower, 7-smoke filtering layer, 8-exhaust port, 9-active carbon adsorption layer, 10-spray pipe, 11-connecting pipe, 12-water pump, 13-alkaline desulfurizing liquid, 14-shunt pipe 3, 15-one-way valve, 16-inlet pipe, 17-first transverse pipe, 18-vertical pipe, 19-shunt hole, 20-second transverse pipe and 21-air quality sensor.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides an electrolytic aluminum flue gas desulphurization device, includes collection petticoat pipe 1 and desulfurizing tower 6, and collection petticoat pipe 1 and desulfurizing tower 6 pass through flue 2 and connect, are equipped with fan 4 on flue 2, collection petticoat pipe 1 parcel sets up in the electrolysis trough top, and 6 bottoms of desulfurizing tower are equipped with shunt tubes 14, and shunt tubes 14 top is alkaline desulfurization liquid 13, shunt tubes 14 includes the inlet tube 16 of being connected with flue 2, and inlet tube 16 department is equipped with check valve 15, and two branches are connected to inlet tube 16, and a branch is violently managed 17 for one number, and another branch is violently managed 20 for two numbers, violently manages 17 for one number and violently manage the intercommunication between 20 with two numbers and be equipped with a plurality of standpipe 18, violently manage for one number, violently manage 20, standpipe 18 on all be equipped with the ascending reposition of redundant personnel hole 19 of a plurality of openings. Whole petticoat pipe 1 is with the flue gas gathering, prevent leaking, the flue gas is discharged to desulfurizing tower 6, check valve 15 prevents that alkaline doctor solution 13 from flowing back to in flue 2, set up a plurality of diffluence holes 19 on the shunt tubes 14, the flue gas is along a plurality of diffluence holes 19 arrange into alkaline doctor solution 13, make flue gas and alkaline doctor solution 13 can fully react, the desulfurization rate has been improved greatly, improve the flue gas purification effect, setting up of violently managing No. two branches and violently managing 20 makes the flue gas can evenly get into shunt tubes 14 in two directions, it is less to prevent that the diffluence hole 19 of keeping away from inlet tube 16 from exhausting, it is inhomogeneous to prevent that diffluence hole 19 from exhausting.

Furthermore, a plurality of vertical smoke absorbing pipes 3 with downward openings are uniformly arranged in the smoke collecting cover 1, and the smoke absorbing pipes 3 are connected with the flue 2. The position that the electrolysis trough produced the flue gas is in a plurality of flame holes department, sets up a plurality of smoking pipes 3 and makes the gas collection more abundant, accurate gas collection. Wherein, the opening part of the smoke absorbing pipe 3 is a bell mouth, so that the air input and the air collection effect are improved.

Further, a spray pipe 10 is arranged in the desulfurizing tower 6, the spray pipe 10 is positioned above the alkaline desulfurizing liquid 13, the spray pipe 10 is connected with the alkaline desulfurizing liquid 13 through a connecting pipe 11, a water pump 12 is arranged on the connecting pipe 11, and a plurality of spray heads 5 are uniformly arranged on the spray pipe 10. The gas treated by the alkaline desulfurization liquid 13 is sprayed by the spray header 5 again to carry out secondary desulfurization, thereby improving the desulfurization effect.

Further, the upper part of the spray pipe 10 is provided with an active carbon adsorption layer 9 for adsorbing impurities, thereby further improving the flue gas purification effect.

Further, 6 tops of desulfurizing tower be equipped with

gas vent

8, 8 departments of gas vent are equipped with flue gas filter layer 7, further improve flue gas purification effect, guarantee the exhaust gas quality.

The desulfurizing tower 6 in be equipped with air quality sensor 21, be convenient for monitor the gas quality in the desulfurizing tower 6, monitor the desulfurization effect.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the utility model is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. An electrolytic aluminum flue gas desulfurization device is characterized in that: including collection petticoat pipe (1) and desulfurizing tower (6), collection petticoat pipe (1) and desulfurizing tower (6) are connected through flue (2), are equipped with fan (4) on flue (2), collection petticoat pipe (1) parcel sets up in the electrolysis trough top, and desulfurizing tower (6) bottom is equipped with shunt tubes (14), and shunt tubes (14) top is alkaline desulfurization liquid (13), shunt tubes (14) include inlet tube (16) of being connected with flue (2), and inlet tube (16) department is equipped with check valve (15), and two branches are connected in inlet tube (16), and a branch is violently managed (17) for one number, and another branch is violently managed (20) for two numbers, and the intercommunication is equipped with a plurality of standpipe (18) between violently managing (20) for one number and violently managing (17) for two numbers, violently manage (20) for one number, all be equipped with the ascending reposition of branch hole (19) of a plurality of openings on standpipe (18).

2. The electrolytic aluminum flue gas desulfurization device according to claim 1, characterized in that: the exhaust fume collecting hood (1) is internally and uniformly provided with a plurality of vertical smoke absorbing pipes (3) with downward openings, and the smoke absorbing pipes (3) are connected with the flue (2).

3. The electrolytic aluminum flue gas desulfurization device according to claim 2, characterized in that: the opening of the smoke absorbing pipe (3) is a bell mouth.

4. The electrolytic aluminum flue gas desulfurization device according to claim 1, characterized in that: the desulfurization tower (6) in be equipped with shower (10), shower (10) are located alkaline desulfurization liquid (13) top, shower (10) are connected through connecting pipe (11) with alkaline desulfurization liquid (13), are equipped with water pump (12) on connecting pipe (11), evenly are equipped with a plurality of shower heads (5) on shower (10).

5. The electrolytic aluminum flue gas desulfurization device according to claim 4, characterized in that: an active carbon adsorption layer (9) is arranged above the spray pipe (10).

6. The electrolytic aluminum flue gas desulfurization device according to claim 1, characterized in that: and an exhaust port (8) is arranged above the desulfurizing tower (6), and a flue gas filtering layer (7) is arranged at the exhaust port (8).

7. The electrolytic aluminum flue gas desulfurization device according to claim 1, characterized in that: an air quality sensor (21) is arranged in the desulfurizing tower (6).