Deep purification device for electrolytic aluminum flue gas

Abstract

The utility model particularly relates to the technical field of flue gas purification, and discloses an electrolytic aluminum flue gas deep purification device which is characterized by comprising a tank body, a spraying box is fixedly arranged in the middle of the top end of the tank body, a medicine tank is inserted into the top end of the spraying box, a groove is formed in the medicine tank, and medicine particles are filled at the inner bottom of the groove. An electromagnetic valve is installed at the bottom end of the medicine tank, a communicating pipe is inserted into the bottom end of the spraying box, a plurality of nozzles penetrate through the tank body to be inserted into the bottom end of the communicating pipe, a water pump is fixedly arranged on the side wall of the tank body, and the two ends of the water pump are sequentially communicated with the tank body and the spraying box through pipelines. By arranging the spraying box, the medicine tank, the electromagnetic valve, the groove and the medicine particles, the spraying box can be communicated with the interior of the groove by starting the electromagnetic valve, so that the medicine particles and a solution are conveniently mixed and injected into the tank body through the communicating pipe and the nozzle, the medicine concentration is improved, and the reaction speed and the reaction quality of gas treatment are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of flue gas purification, especially relates to an electrolytic aluminium flue gas deep purification device. BACKGROUND

[0002] Aluminum industry is an important basic raw material industry of national economic development, and China is the world's largest aluminum producer and aluminum consumer. SO2 emission pollution is increasingly prominent in the process of electrolytic aluminum production, and fluorides are contained in the exhaust gas, so it is necessary to treat and recover SO2 and fluorides in the flue gas of aluminum plants and realize resource utilization to reduce air pollution. Under the new situation of global economic growth mode transformation and low-carbon economy development, in accordance with the policy requirement of vigorously promoting energy saving and emission reduction and realizing industrial upgrading in China, it is of great practical significance to treat and recover SO2 and fluorides in the flue gas of aluminum plants and realize resource utilization to promote energy saving and emission reduction and industrial upgrading of China's aluminum industry and create good economic, social and environmental benefits.

[0003] The prior art scheme such as announcement number: CN213995391U the utility model belongs to the technical field of flue gas purification equipment, especially a flue gas purification device for electrolytic aluminum industry, including the purification box, the lower end surface of purification box is installed motor, the output end of motor penetrates the bottom of purification box and extends to the inside of purification box, the outer wall of rotating shaft is fixedly connected with a plurality of uniform distribution stirring rod, a plurality of stirring rods are fixedly connected with stirring blades away from the one end of rotating shaft, the upper end surface of purification box is fixedly connected with spray tank, the motor drives rotating shaft to rotate, the rotating shaft drives a plurality of stirring rods and stirring blades to rotate, the sodium carbonate solution in the inside of purification box is stirred, so that the fluorides in the flue gas are fully mixed with the sodium carbonate solution, the reaction efficiency and effect are greatly improved, and the problems of poor purification effect of fluorides in the flue gas of the existing flue gas purification device for electrolytic aluminum industry, insufficient reaction of purification liquid and fluorides and incomplete purification are solved.

[0004] The above technical scheme has the following technical problems: the sodium carbonate solution will be reduced in concentration due to gas treatment during use of the electrolytic aluminum flue gas deep purification device, thereby affecting the gas treatment reaction speed and reaction quality. UTILITY MODEL CONTENTS

[0005] The utility model provides an electrolytic aluminum flue gas deep purification device, which aims to solve the problem that the sodium carbonate solution will be reduced in concentration due to gas treatment during use of the electrolytic aluminum flue gas deep purification device, thereby affecting the gas treatment reaction speed and reaction quality.

[0006] The utility model discloses a kind of electrolytic aluminium flue gas deep purification devices, it is characterized in that, including tank body, the middle of tank body top is fixed with spray tank, the top of spray tank is inserted with medicine jar, recess is opened in the inside of medicine jar, the inner bottom of recess is filled with medicine particles, the bottom of medicine jar is equipped with solenoid valve, the bottom of spray tank is inserted with communicating pipe, the bottom of communicating pipe is inserted with several spray nozzles in tank body, water pump is fixed on the lateral wall of tank body, the both ends of water pump are sequentially communicated with tank body and spray tank by pipeline.

[0007] Preferably, the tank body is inserted with an air inlet pipe at the top of the spray tank, the bottom end of the air inlet pipe is inserted into the inner bottom of the tank body, and the other end of the air inlet pipe is sequentially communicated with the filter box and the fan, facilitating the reaction of flue gas with the internal solution of the tank body.

[0008] Preferably, the lateral wall of the tank body away from the water pump is inserted with a liquid injection pipe, one end of the liquid injection pipe is communicated with the tank body, and the other end of the liquid injection pipe is equipped with a valve and flush with the top end of the tank body, facilitating the addition of solution to the inside of the tank body.

[0009] Preferably, the lateral wall of the tank body away from the liquid injection pipe is inserted with an exhaust pipe, the lateral wall of the tank body is inserted with a liquid discharge pipe, one end of the liquid discharge pipe is communicated with the inner bottom of the tank body, and the other end of the liquid discharge pipe is equipped with a valve, facilitating the discharge of reaction solution.

[0010] Preferably, a motor one is fixed at the middle position of the bottom end of the tank body, the output end of the motor one is fixed with a rotating shaft one penetrating through the tank body, and the outer surface of the rotating shaft one is sleeved with two groups of stirring rods, improving the efficiency of contact reaction of solution and flue gas.

[0011] Preferably, a motor two is fixed on the lateral wall of the spray tank, the output end of the motor two is fixed with a rotating shaft two penetrating through the spray tank, and the end of the rotating shaft two is sleeved with a paddle, improving the efficiency of drug particle melting.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] Firstly, by providing the spray tank, the medicine jar, the solenoid valve, the recess and the medicine particles, the inside of the spray tank and the recess can be communicated by starting the solenoid valve, so as to facilitate the mixing of the medicine particles and the solution, and the medicine particles are injected into the inside of the tank body through the communicating pipe and the spray nozzle, thereby improving the drug concentration and ensuring the reaction speed and quality of gas treatment; secondly, by providing the motor two, the rotating shaft two and the paddle, the rotating shaft two and the paddle can be accelerated when the motor two is started, and the efficiency of dissolving the medicine particles in the inside of the spray tank is improved, thereby avoiding the blockage of the spray nozzle by the medicine particles. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1The utility model discloses a front view three-dimensional structure schematic diagram.

[0015] Fig. 2 The utility model discloses a front view cross section installation structure schematic diagram.

[0016] Fig. 3 The utility model discloses a spray tank side view cross section structure schematic diagram.

[0017] The sign is: 1, tank body, 2, spray tank, 3, medicine jar, 4, electromagnetic valve, 5, inlet pipe, 6, liquid injection pipe, 7, liquid discharge pipe, 8, motor one, 9, water pump, 10, exhaust pipe, 11, motor two, 12, communication pipe, 13, nozzle, 14, rotating shaft one, 15, stirring rod, 16, recess, 17, medicine particle, 18, rotating shaft two, 19, paddle. DETAILED DESCRIPTION

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the description and the drawings are to be regarded as illustrative in nature and are not intended to limit the application; the terminology used in the description and the claims of the application and the above description of the drawings includes the terms specifically mentioned above as well as their derivatives.

[0019] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a single alternative embodiment.

[0020] Please refer to Figs. 1-3The utility model provides an embodiment: a kind of electrolytic aluminium flue gas deep purification device, it is characterized in that, including tank body 1, tank body 1 is used to load sodium carbonate aqueous solution, the middle of the top end of tank body 1 is fixed with spray tank 2, the top end of tank body 1 close to spray tank 2 is inserted with air inlet pipe 5, the bottom end of air inlet pipe 5 is inserted in the inner bottom of tank body 1, another end of air inlet pipe 5 is connected with filter box and fan in turn, it is convenient for smoke and the internal solution of tank body 1 to react, the top end of spray tank 2 is inserted with medicine jar 3, recess 16 is set in the inside of medicine jar 3, the inner bottom of recess 16 is filled with medicine particle 17, 17 is sodium carbonate powder particle, the bottom end of medicine jar 3 is equipped with solenoid valve 4, the bottom end of spray tank 2 is inserted with communication pipe 12, the bottom end of communication pipe 12 is inserted with a plurality of spray nozzles 13 in tank body 1, water pump 9 is fixed on the sidewall of tank body 1, the sidewall of tank body 1 away from water pump 9 is inserted with liquid injection pipe 6, one end of liquid injection pipe 6 is connected with tank body 1, another end of liquid injection pipe 6 is equipped with valve and is flush with the top end of tank body 1, open the valve at the end of liquid injection pipe 6 to facilitate adding solution to the inside of tank body 1, the two ends of water pump 9 are connected with tank body 1 and spray tank 2 in turn by pipeline, the solution in the inside of tank body 1 can be pumped to the inside of spray tank 2 by starting water pump 9, then from solution and spray nozzle 13 even atomization is sprayed, so that gas leaving liquid surface and atomized solution fully react, so as to realize flue gas desulfurization depth processing, solenoid valve 4 can be started to connect the inside of spray tank 2 and recess 16, so as to facilitate mixing medicine particle 17 with solution, inject into the inside of tank body 1 by communication pipe 12 and spray nozzle 13, so as to improve the concentration of medicine, so as to ensure the reaction speed and reaction quality of gas treatment.

[0021] The sidewall of tank body 1 away from liquid injection pipe 6 is inserted with exhaust pipe 10, the sidewall of tank body 1 is inserted with liquid discharge pipe 7, one end of liquid discharge pipe 7 is connected with the inner bottom of tank body 1, another end of liquid discharge pipe 7 is equipped with valve, open the valve at the end of liquid discharge pipe 7 to facilitate the solution of tank body 1 inside reaction to be completed to be discharged.

[0022] The middle position of tank body 1 bottom end is fixed with motor one 8, the output end of motor one 8 is fixed with rotating shaft one 14 penetrating tank body 1, the outer surface of rotating shaft one 14 is equipped with two groups of stirring rods 15, improve the efficiency of solution and smoke contact reaction.

[0023] The sidewall of spray tank 2 is fixed with motor two 11, the output end of motor two 11 is fixed with rotating shaft two 18 penetrating spray tank 2, the end of rotating shaft two 18 is equipped with paddle 19, improve the efficiency of medicine particle 17 melting.

[0024] Working principle: the electrolytic aluminum flue gas deep purification device in use, the operator first external power, the gas inlet pipe 5 is L-shaped plug-in in the inner bottom of the tank body 1 in sodium carbonate solution, the flue gas in the gas inlet pipe 5 is discharged into the inside of the tank body 1, the flue gas is contacted with the solution to realize desulfurization treatment, start the water pump 9 can be pumped to the inside of the tank body 1 solution to the inside of the spray tank 2, then from the solution and nozzle 13 uniform spraying atomization, so that the gas leaving the liquid surface and atomized solution fully react, so as to realize the flue gas desulfurization deep treatment, when the concentration of the solution in the tank body 1 decreases with the reaction, the operator can start the electromagnetic valve 4 to communicate the groove 16 and the spray tank 2, the groove 16 funnel, so as to facilitate the groove 16 inside the medicine particles 17 into the inside of the spray tank 2 and the solution in the spray tank 2 inside contact dissolution, so as to improve the content of the solvent in the solution, high concentration solution via the communication pipe 12 and nozzle 13 spray again into the inside of the tank body 1, from the inside of the tank body 1, so as to ensure that the flue gas and solution contact, fully react, so as to improve the quality and efficiency of the flue gas treatment.

[0025] Secondly, the motor two 11 driven shaft two 18 and paddle 19 rotation can accelerate, medicine particles 17 in the spray tank 2 inside the dissolution efficiency, so as to avoid the medicine particles 17 block nozzle 13.

[0026] It should be noted that for the foregoing embodiments, in order to simply describe, it is expressed as a series of action combination, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps can adopt other order or simultaneously perform.Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the utility model.

[0027] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented by other ways. For example, the device embodiments described above are only illustrative, and for example, the division of the above units can have another division manner in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interfaces, or electrical or other forms.

[0028] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed on a plurality of network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the embodiment scheme.

[0029] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the protection scope of the present application. Obviously, the described examples are only some of the embodiments of the present application, but not all the embodiments. Based on these examples, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Although the present application has been described in detail with reference to the above examples, those skilled in the art can still combine, add or delete the features in the embodiments of the present application according to the circumstances without creative work, so as to obtain different technical solutions which do not deviate from the concept of the present application in essence. These technical solutions also fall within the scope of the present application.

Claims

1. A device for deep purification of aluminum electrolysis fume, characterized in that, The utility model provides a medicine spraying device, including tank (1), the middle of the top of tank (1) is fixed with spray tank (2), the top of spray tank (2) is inserted with medicine tank (3), the inside of medicine tank (3) is provided with recess (16), the inner bottom of recess (16) is filled with medicine particle (17), the bottom of medicine tank (3) is installed with electromagnetic valve (4), the bottom of spray tank (2) is inserted with communication pipe (12), the bottom of communication pipe (12) is inserted with a plurality of nozzles (13) through tank (1), the lateral wall of tank (1) is fixed with water pump (9), and the both ends of water pump (9) are sequentially communicated with tank (1) and spray tank (2) through pipeline.

2. The device for deep purification of aluminum smelting flue gas according to claim 1, characterized in that: The top of tank (1) is inserted with air inlet pipe (5) close to spray tank (2), the bottom of air inlet pipe (5) is inserted in the inner bottom of tank (1), and the other end of air inlet pipe (5) is sequentially communicated with filter box and fan.

3. The device for deep purification of flue gas of electrolytic aluminum according to claim 2, characterized in that: The lateral wall of tank (1) is inserted with liquid injection pipe (6) away from water pump (9), one end of liquid injection pipe (6) is communicated with tank (1), and the other end of liquid injection pipe (6) is installed with valve and flush with the top of tank (1).

4. The device for deep purification of flue gas of electrolytic aluminum according to claim 3, characterized in that: The lateral wall of tank (1) is inserted with exhaust pipe (10) away from liquid injection pipe (6), the lateral wall of tank (1) is inserted with liquid discharge pipe (7), one end of liquid discharge pipe (7) is communicated with the inner bottom of tank (1), and the other end of liquid discharge pipe (7) is installed with valve.

5. The device for deep purification of flue gases of electrolytic aluminum according to claim 4, characterized by the fact that: The middle position of the bottom of tank (1) is fixed with motor one (8), the output end of motor one (8) is fixed with rotating shaft one (14) through tank (1), and the outer surface of rotating shaft one (14) is sleeved with two groups of stirring rods (15).

6. The device for deep purification of flue gas of electrolytic aluminum according to claim 1, characterized in that: The lateral wall of spray tank (2) is fixed with motor two (11), the output end of motor two (11) is fixed with rotating shaft two (18) through spray tank (2), and the end of rotating shaft two (18) is sleeved with paddle (19).

Images