CN215842277U

CN215842277U - Waste gas purification device for smelting secondary aluminum

Info

Publication number: CN215842277U
Application number: CN202122245445.4U
Authority: CN
Inventors: 仇军华; 仇潇; 霍贝贝
Original assignee: Miluo Huaxiao Aluminum Co ltd
Current assignee: Miluo Huaxiao Aluminum Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-02-18
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses a waste gas purification device for secondary aluminum smelting, which comprises a spray tank, a gas inlet pipe, a gas outlet pipe and a gas outlet pipe, wherein the spray tank is arranged into a vertically long tank body shape; the device comprises a pumping tank, a piston is arranged in the pumping tank in a sliding mode in a sealing tank body structure, a driving assembly for driving the piston is arranged in the pumping tank, the upper end of the pumping tank is fixedly connected and communicated with a liquid inlet pipe and a liquid outlet pipe, and the lower end of the pumping tank is fixedly connected and communicated with a gas inlet pipe and a gas outlet pipe. The utility model is provided with the agitation tank structure, realizes the circulating action of air blowing and spraying liquid by utilizing the action of a reciprocating piston according to the characteristic that the reclaimed aluminum is discontinuously produced into waste gas, has good purification effect on the waste gas and has self-circulation purification effect on the spraying liquid.

Description

Waste gas purification device for smelting secondary aluminum

Technical Field

The utility model relates to the technical field of secondary aluminum smelting, in particular to a waste gas purification device for secondary aluminum smelting.

Background

The waste aluminum in China is recycled mainly by adopting pyrogenic process smelting, and waste gas which affects the environment is generated in the smelting process. The waste gas and the smoke dust contain various metal oxides and non-metal oxides, and may contain harmful substances, which can pollute the environment; at present, the waste gas generated by smelting the secondary aluminum needs a relatively complex purification degree, and in the waste gas purification process, the larger particle pollutants contained in the waste gas are purified through a filtering step, so that the use mode is more, for example: cloth bag dust removal, dust collection chamber, spray dust removal, foam tower and cyclone dust removal; however, the generation of waste gas in the secondary aluminum smelting is not continuous, the generation of the waste gas is discontinuous in the actual secondary aluminum smelting process, the existing device conducts the waste gas in a mode of blowing or generating negative pressure and the like, and the waste is caused because the shutdown operation cannot be frequently carried out; and the existing dust removal structure needs regular maintenance and is troublesome.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides an exhaust gas purification device for secondary aluminum smelting.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a waste gas purification device for secondary aluminum smelting comprises a spray tank, wherein the spray tank is arranged into a vertically long tank body shape, the whole spray tank is arranged into a sealing structure, and the upper end of the spray tank is fixedly connected and communicated with an exhaust pipe;

the tank that surges, it sets up to sealed tank structure, the sealed slip in the tank that surges is provided with the piston, be provided with the drive assembly of drive piston in the tank that surges, the tank upper end fixed connection and the intercommunication of bubbling have feed liquor pipe and drain pipe, the tank lower extreme fixed connection and the intercommunication of bubbling have intake pipe and outlet duct, the one end and the spray tank lower extreme fixed connection and the intercommunication of bubbling are kept away from to the feed liquor pipe, the one end and the spray tank upper portion fixed connection and the intercommunication of bubbling are kept away from to the drain pipe, the one end and the lower part fixed connection and the intercommunication of spray tank of bubbling are kept away from to the outlet duct, equal fixedly connected with check valve on feed liquor pipe, drain pipe, intake pipe and the outlet duct.

Preferably, the driving assembly comprises a hydraulic telescopic rod vertically arranged on the lower side of the agitating tank, and the telescopic end of the hydraulic telescopic rod penetrates through the agitating tank, extends into the agitating tank and is coaxially and fixedly connected with the piston.

Preferably, drain pipe one end stretches into in the jar that sprays and bends downwards, it has a plurality of first toroidal tubes to spray jar interior vertical arrangement, and is a plurality of the diameter of first toroidal tube is from last down dwindling gradually, and is a plurality of first toroidal tube all with drain pipe fixed connection and intercommunication, and a plurality of first toroidal tube terminal surface all fixed a plurality of shower nozzles that are provided with down.

Preferably, one end of the air outlet pipe extends into the spraying tank and is bent downwards, a second annular pipe is arranged at the bottom of the spraying tank, the air outlet pipe is fixedly connected and communicated with the second annular pipe, and a plurality of aeration nozzles are uniformly and fixedly arranged on the upper side of the second annular pipe.

Preferably, fixed cover is equipped with the protective tank body on the drain pipe, evenly be provided with a plurality of oblique nozzle stub in the protective tank body, it is a plurality of all with drain pipe fixed connection and intercommunication oblique nozzle stub, nozzle stub one end is sealed to one side, the matching is provided with the tube-shape filter screen in the oblique nozzle stub, nozzle stub other end screw thread sealing connection has the turning block to one side, tube-shape filter screen and turning block fixed connection.

Preferably, the pore diameters of the plurality of cylindrical filter screens are gradually increased from top to bottom.

Compared with the prior art, the utility model has the beneficial effects that: this device is to the dust removal structure of fountain, the leading-in mode of waste gas of the jar of having additionally set up and replacing current negative pressure or blast air of drumming, the mode that utilizes piston reciprocating motion carries out the conduction of waste gas, adapt to the characteristic that the secondary aluminium is smelted and is interrupted production waste gas, the in-process of the inside piston reciprocating motion of drumming jar not only conducts waste gas, still played a circulating action to spraying liquid, guarantee the action that sprays, let spraying liquid pass through purification filtration structure when the circulation simultaneously, prolong whole device's maintenance around, conveniently use, the device's purifying effect is better simultaneously.

Drawings

Fig. 1 is a right side perspective view of the present invention.

Fig. 2 is a schematic view of the internal three-dimensional structure of the spray tank of the present invention.

Fig. 3 is a schematic view showing an internal perspective structure of the agitation tank of the present invention.

Fig. 4 is a schematic view of the internal structure of the protective can body of the present invention.

In the figure: 1 spraying tank, 2 exhaust pipes, 3 agitating tanks, 4 pistons, 5 liquid inlet pipes, 6 liquid outlet pipes, 7 gas inlet pipes, 8 gas outlet pipes, 9 hydraulic telescopic rods, 10 first annular pipes, 11 second annular pipes, 12 aeration nozzles, 13 protective tank bodies, 14 inclined short pipes, 15 cylindrical filter screens, 16 rotating blocks and 17 one-way valves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 4, an apparatus for purifying an exhaust gas from secondary aluminum smelting includes: the spraying tank 1 is arranged in a vertical long tank body shape, the whole spraying tank 1 is arranged in a sealing structure, the upper end of the spraying tank 1 is fixedly connected and communicated with an exhaust pipe 2, the spraying tank 1 adopts a structure the same as that of the existing spraying tower, gas is introduced to the bottom of the spraying tank, the gas is purified by spraying water into the inside of the spraying tank to form water mist, the water mist wraps particles down to complete the purification action, the purified gas is discharged through the exhaust pipe 2, the purification mode is mature and widely applied in the prior art, and specific statement is not made herein.

The blast pot 3 is arranged in a sealed pot body structure, a piston 4 is arranged in the blast pot 3 in a sealed sliding mode, a driving assembly for driving the piston 4 is arranged in the blast pot 3, the vertical reciprocating motion of the piston 4 is realized through the work of the driving assembly, cavities formed on the upper side and the lower side of the piston 4 are respectively extruded or expanded, negative pressure is formed discontinuously for suction or extrusion and bulging, a liquid inlet pipe 5 and a liquid outlet pipe 6 are fixedly connected and communicated with the upper end of the blast pot 3, so that when the piston 4 moves, the cavity on the upper side forms the action of sucking spray liquid and extruding the spray liquid, an air inlet pipe 7 and an air outlet pipe 8 are fixedly connected and communicated with the lower end of the blast pot 3, so that when the piston 4 moves, the cavity on the lower side forms the action of sucking waste gas and extruding the waste gas, and one end, far away from the blast pot 3, of the liquid inlet pipe 5 is fixedly connected and communicated with the lower end of the spray pot 1, one end that the jar 3 was moved in the blast was kept away from to drain

pipe

6 and 1 upper portion fixed connection and the intercommunication of jar spray, the one end that jar 3 was moved in the blast was kept away from to outlet duct 8 and the lower part fixed connection and the intercommunication of jar 1 spray, feed liquor pipe 5, drain pipe 6, equal fixedly connected with check valve 17 on intake pipe 7 and the outlet duct 8, setting up of check valve 17 makes feed liquor pipe 5, drain pipe 6, intake pipe 7 and outlet duct 8 be the check pipe, thereby the effect of negative pressure suction and extrusion blowing has been guaranteed.

Wherein, drive assembly includes a vertical setting and moves jar 3 downside hydraulic telescoping rod 9 at the drum, and the flexible end of hydraulic telescoping rod 9 runs through drum 3 and extends to its inside and with the coaxial fixed connection of piston 4, can drive piston 4 through the flexible action of hydraulic telescoping rod 9 and carry out reciprocating motion, and in practical application, here hydraulic telescoping rod 9 can be replaced by pneumatic or electric telescopic link.

Wherein, 6 one end of drain pipe stretches into in the jar 1 and bends downwards, it has a plurality of first toroidal tubes 10 to spray vertical range in jar 1, the diameter of a plurality of first toroidal tubes 10 is followed from last down dwindling gradually, a plurality of first toroidal tubes 10 all with 6 fixed connection of drain pipe and intercommunication, and a plurality of first toroidal tubes 10 down the terminal surface all fixed be provided with a plurality of shower nozzles, a plurality of shower nozzle blowout of passing through a plurality of first toroidal tubes 10 downside from 6 leading-in liquid of drain pipe, and the diameter that a plurality of first toroidal tubes 10 dwindle gradually, guarantee the stable formation of water curtain, increase and spray the scope, enlarge and spray effect.

Wherein, 8 one ends of outlet duct stretch into in the jar 1 and bend downwards, and the bottom is provided with second toroidal tube 11 in jar 1 sprays, and

outlet duct

8 and 11 fixed connection of second toroidal tube and intercommunication, the 11 upside of second toroidal tube evenly fixed a plurality of aeration shower nozzles 12 that are provided with, and aeration shower nozzle 12 that the annular was arranged can let gaseous even diffusion in spraying liquid to increase the area of contact of gas and spraying liquid, thereby increase purifying effect.

A protective tank body 13 is fixedly sleeved on the liquid outlet pipe 6, a plurality of inclined short pipes 14 are uniformly arranged in the protective tank body 13, the inclined short pipes 14 are fixedly connected and communicated with the liquid outlet pipe 6, one ends of the inclined short pipes 14 are sealed, and cylindrical filter screens 15 are arranged in the inclined short pipes 14 in a matching manner, so that when spraying liquid passes through the liquid outlet pipe 6, the spraying liquid can be filtered by the cylindrical filter screens 15, thereby playing a purifying effect, and meanwhile, the spraying liquid is circulated all the time, and the purifying effect of the spraying liquid can be ensured; the other end of the oblique short pipe 14 is in threaded sealing connection with a rotating block 16, the cylindrical filter screen 15 is fixedly connected with the rotating block 16, and the cylindrical filter screen 15 can be conveniently detached by rotating the rotating block 16, so that the maintenance is convenient; the aperture of the plurality of cylindrical filter screens 15 is gradually increased from top to bottom, so that the multi-stage filtering effect is formed, and the purifying effect is ensured.

The working steps of the waste gas purification device for smelting the secondary aluminum are as follows: the piston 4 can be driven to vertically reciprocate by the telescopic action of the hydraulic telescopic rod 9, when the piston 4 moves upwards, the cavity at the lower side is expanded, waste gas is sucked in through the air inlet pipe 7, the cavity at the upper side is reduced in the process, the spraying liquid is extruded and sprayed out through the liquid outlet pipe 6, then the piston 4 moves downwards to extrude the waste gas into the spraying tank 1 through the air outlet pipe 8, the waste gas is guided into the second annular pipe 11 through the air outlet pipe 8 and is sprayed into the spraying liquid through a plurality of aeration spray nozzles 12, then the waste gas ascends upwards, the actions are repeated, and the speed is controlled, so that when the gas ascends, spray liquid and just spout, accomplish and spray the purification operation, spray liquid and can pass through drain pipe 6 in carrying out the circulation process, utilize the cylindrical filter screen 15 in a plurality of oblique nozzle stub 14 on the drain pipe 6 to filter, guarantee to spray the purifying effect of liquid.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A waste gas purification device for secondary aluminum smelting is characterized by comprising:

the spraying tank (1) is arranged in a vertically long tank shape, the whole spraying tank (1) is arranged in a sealing structure, and the upper end of the spraying tank (1) is fixedly connected and communicated with an exhaust pipe (2);

a blast pot (3) which is arranged in a sealed pot body structure, a piston (4) is arranged in the blast pot (3) in a sealing and sliding way, a driving assembly for driving the piston (4) is arranged in the agitating tank (3), the upper end of the agitating tank (3) is fixedly connected and communicated with a liquid inlet pipe (5) and a liquid outlet pipe (6), the lower end of the agitation tank (3) is fixedly connected and communicated with an air inlet pipe (7) and an air outlet pipe (8), one end of the liquid inlet pipe (5) far away from the blast tank (3) is fixedly connected and communicated with the lower end of the spray tank (1), one end of the liquid outlet pipe (6) far away from the agitating tank (3) is fixedly connected and communicated with the upper part of the spraying tank (1), one end of the air outlet pipe (8) far away from the blast tank (3) is fixedly connected and communicated with the lower part of the spray tank (1), the liquid inlet pipe (5), the liquid outlet pipe (6), the air inlet pipe (7) and the air outlet pipe (8) are fixedly connected with one-way valves (17).

2. A recycled aluminum smelting exhaust gas purification apparatus as claimed in claim 1, wherein said drive assembly comprises a hydraulic telescopic rod (9) vertically disposed on the lower side of the blast pot (3), the telescopic end of said hydraulic telescopic rod (9) extending through the blast pot (3) to the inside thereof and being coaxially and fixedly connected with the piston (4).

3. The secondary aluminum smelting exhaust gas purification device as claimed in claim 1, wherein one end of the liquid outlet pipe (6) extends into the spray tank (1) and is bent downwards, a plurality of first annular pipes (10) are vertically arranged in the spray tank (1), the diameter of the first annular pipes (10) is gradually reduced from top to bottom, the first annular pipes (10) are fixedly connected and communicated with the liquid outlet pipe (6), and a plurality of spray heads are fixedly arranged on the lower end faces of the first annular pipes (10).

4. A waste gas purification device for secondary aluminum smelting according to claim 1, characterized in that one end of the air outlet pipe (8) extends into the spray tank (1) and is bent downwards, a second annular pipe (11) is arranged at the bottom in the spray tank (1), the air outlet pipe (8) is fixedly connected and communicated with the second annular pipe (11), and a plurality of aeration nozzles (12) are uniformly and fixedly arranged at the upper side of the second annular pipe (11).

5. The waste gas purification device for secondary aluminum smelting as claimed in claim 1, wherein a protective tank body (13) is fixedly sleeved on the liquid outlet pipe (6), a plurality of inclined short pipes (14) are uniformly arranged in the protective tank body (13), the inclined short pipes (14) are fixedly connected and communicated with the liquid outlet pipe (6), one end of each inclined short pipe (14) is sealed, a cylindrical filter screen (15) is arranged in each inclined short pipe (14) in a matching manner, the other end of each inclined short pipe (14) is connected with a rotary block (16) in a threaded sealing manner, and the cylindrical filter screen (15) is fixedly connected with the rotary block (16).

6. A secondary aluminium smelting exhaust gas purification apparatus according to claim 5, wherein the apertures of said plurality of tubular screens (15) are progressively larger from top to bottom.