Flue gas treatment box for high-purity magnesia production

Abstract

The utility model discloses a flue gas treatment box for high purity magnesia production, which comprises a box body, the bottom of the box body is communicated with a flue gas inlet pipe, the top of one end of the flue gas inlet pipe positioned in the inner cavity of the box body is fixedly connected with a one-way exhaust valve, the bottom of the left side of the box body is fixedly connected with a neutralizing liquid box, and the top of the neutralizing liquid box is communicated with a suction pump. And the top of the suction pump is connected with a three-way valve through a pipeline. According to the utility model, flue gas is discharged into the inner cavity of the box body through the flue gas inlet pipe, meanwhile, neutralization liquid in the inner cavity of the neutralization liquid box is conveyed to the inner cavity of the spray pipe through the three-way valve by the suction pump and is sprayed out through the spray head to be neutralized and filtered with the flue gas, and waste liquid generated by neutralization is discharged by regularly opening the discharge pipe; a good filtering and purifying effect can be achieved through a chemical reagent, purified and filtered smoke is further purified and filtered through a filtering material, the purifying effect can be guaranteed, and the smoke is exhausted through a smoke exhaust fan in an inner cavity of the smoke exhaust pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of high-purity magnesite production, in particular to a flue gas treatment box for high-purity magnesite production. Background Technique

[0002] Magnesite, also known as sintered magnesite, is made by calcining magnesite, brucite, or magnesium hydroxide obtained by reacting seawater with lime milk at high temperature. It has strong hydration ability and is mainly used to make basic refractory materials, such as magnesite bricks and magnesite-aluminum bricks. Those with more impurities are used to pave the bottom of steelmaking furnaces. Flue gas is generated during the processing of high-purity magnesite. If the flue gas is directly discharged, it will cause harm to the human body and damage the environment for a long time.

[0003] For example, the Chinese patent discloses "a flue gas treatment device for high-purity magnesite processing". The patent includes a treatment box. A blower is arranged on the left side of the treatment box. The input end of the blower is communicated with a first air duct, and the output end of the blower is communicated with a second air duct. The utility model uses the blower to introduce the flue gas generated during magnesite processing into the interior of the cooling box through the first air duct and the second air duct. Under the action of the coolant in the cooling box, the flue gas is cooled to reduce the temperature of the flue gas. At the same time, under the action of the first one-way valve, the flue gas can only enter the cooling box and cannot flow back. After the flue gas is cooled, it is introduced into the interior of the filtration box through a connecting pipe. Under the action of the filter screen and the activated carbon filter plate, the impurities and harmful substances in the flue gas are filtered, and at the same time, it solves the problem that flue gas is generated during high-purity magnesite processing. If the flue gas is directly discharged, it will cause harm to the human body and damage the environment for a long time.

[0004] This patent only conducts simple filtration through the filter screen and the activated carbon filter plate, and the filtration effect is poor. Therefore, it is necessary to design a flue gas treatment box with efficient purification and filtration. Content of the Utility Model

[0005] The purpose of the utility model is to provide a flue gas treatment box for high-purity magnesite production, which has the advantage of good purification effect and solves the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A flue gas treatment box for high-purity magnesite production includes a box body. A smoke inlet pipe is communicated with the bottom of the box body. A one-way exhaust valve is fixedly connected to the top of one end of the smoke inlet pipe located in the inner cavity of the box body. A neutralizing liquid box is fixedly connected to the bottom of the left side of the box body. A suction pump is communicated with the top of the neutralizing liquid box. The top of the suction pump is connected with a three-way valve through a pipeline. The other end of the three-way valve penetrates into the inner cavity of the box body and is fixedly connected with a spray pipe. Nozzles are fixedly connected to the inner wall of the spray pipe. A partition net is fixedly connected to the top of the inner cavity of the box body. Filter materials are filled between the upper and lower partition nets.

[0007] A first motor is fixedly connected to the top of the left side of the box body. The output shaft of the first motor penetrates into the inner cavity of the box body and is fixedly connected to a first threaded rod. The other end of the first threaded rod is fixedly connected to the inner wall of the box body through a bearing. A moving block is threadedly connected to the surface of the first threaded rod. The bottom of the moving block is fixedly connected to an installation box. A second motor is fixedly connected to the back of the inner cavity of the installation box. The output shaft of the second motor is fixedly connected to a second threaded rod. The other end of the second threaded rod is fixedly connected to the inner wall of the installation box through a bearing. A threaded block is threadedly connected to the surface of the second threaded rod. The bottom of the threaded block is fixedly connected to an installation block. The bottom of the installation block penetrates to the bottom of the installation box and is fixedly connected to a hydraulic telescopic rod. The bottom of the hydraulic telescopic rod penetrates to the bottom of the top isolation net and is fixedly connected to a vibration motor. A solenoid valve is communicated with the bottom center of the bottom isolation net. A screw feeder is fixedly connected to the right side of the box body. The discharge pipe of the screw feeder penetrates into the inner cavity of the box body. A placing plate is fixedly connected to the bottom of the right side of the box body. A material receiving box is fixedly connected to the top of the placing plate. The bottom of the screw feeder extends into the inner cavity of the material receiving box.

[0008] Preferably, legs are fixedly connected to the four corners of the bottom of the box body, and anti-slip patterns are provided at the bottoms of the legs.

[0009] Preferably, the number of the isolation nets is two. A long groove for moving through the hydraulic telescopic rod is opened at the top of the top isolation net, and a diversion cone is fixedly connected to the top of the bottom isolation net.

[0010] Preferably, a material guiding plate is fixedly connected to the bottom of the inner cavity of the box body, and a discharge pipe is communicated with the bottom of the right side of the box body.

[0011] Preferably, a limiting rod is slidably connected to the top of the inner cavity of the moving block, and both ends of the limiting rod are fixedly connected to the inner wall of the box body.

[0012] Preferably, a moving groove is opened at the bottom of the installation box, and the installation block is slidably connected to the inner wall of the moving groove.

[0013] Preferably, an exhaust pipe is communicated with the top of the box body, and an exhaust fan is fixedly connected to the inner cavity of the exhaust pipe.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The utility model discharges the flue gas into the inner cavity of the box through the smoke inlet pipe. At the same time, the neutralizing liquid in the inner cavity of the neutralizing liquid tank is conveyed to the inner cavity of the spray pipe through the three-way valve by the suction pump and sprayed out through the spray head to carry out neutralizing filtration treatment with the flue gas. The waste liquid generated by neutralization is discharged by regularly opening the discharge pipe. By using chemical reagents, a good filtration and purification effect can be achieved. Moreover, the purified and filtered flue gas is further purified and filtered by the filter material, which can ensure the purification effect and is discharged by the exhaust fan in the inner cavity of the exhaust pipe.

[0016] 2. When the filter material needs to be replaced, stop the smoke inlet work, drain the waste liquid at the bottom of the inner cavity of the box completely, and then by opening the solenoid valve, the filter material can fall to the bottom of the inner cavity of the box, and then after being guided by the guide plate, it is discharged through the discharge pipe. After the filter material is discharged completely, close the solenoid valve, then pour clean filter material into the inner cavity of the material storage box and feed it to the space between the upper and lower isolation nets through the screw feeder. Then, drive the vibration motor to vibrate the filter bag through the hydraulic telescopic rod to ensure the flatness of the filter material. Then, drive the first threaded rod to rotate by the first motor, and the first threaded rod drives the moving block to move left and right. The moving block drives the hydraulic telescopic rod and the vibration motor to move left and right through the installation box. Drive the second threaded rod to rotate by the second motor, and the second threaded rod drives the hydraulic telescopic rod and the vibration motor to move back and forth through the threaded block and the installation block, so as to ensure that the filter material is vibrated flat, thus ensuring a good filtration effect.

[0017] 3. The utility model is provided with a long groove to facilitate the left and right movement of the hydraulic telescopic rod, provided with a diversion cone to facilitate the discharge work of the filter material, provided with a guide plate to facilitate the conduct of the diversion work, provided with a limiting rod to limit the moving block to move stably left and right, and provided with a moving groove to facilitate the back and forth movement of the installation block. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the utility model;

[0019] Figure 2 is a right view schematic structural diagram of the utility model;

[0020] Figure 3 is a sectional schematic structural diagram of the utility model;

[0021] Figure 4 is a sectional schematic structural diagram of the installation box of the utility model.

[0022] In the figure: 1. Box body; 2. Smoke inlet pipe; 3. Neutralizing liquid tank; 4. Suction pump; 5. Three-way valve; 6. Spray pipe; 7. Isolation net; 8. First motor; 9. First threaded rod; 10. Moving block; 11. Installation box; 12. Second motor; 13. Second threaded rod; 14. Threaded block; 15. Installation block; 16. Hydraulic telescopic rod; 17. Vibration motor; 18. Solenoid valve; 19. Screw feeder; 20. Placing plate; 21. Material storage box; 22. Long groove; 23. Guide plate; 24. Discharge pipe; 25. Limit rod; 26. Moving groove; 27. Smoke exhaust pipe. Detailed implementation mode

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] The components of the present invention are all common standard components or components known to those skilled in the art, and their structures and principles can all be known by those skilled in the art through technical manuals or through conventional experimental methods. Embodiment 1:

[0025] Please refer to Figures 1 - 4, in order to achieve a good purification effect in this embodiment, the following technical solutions are provided, and specifically disclosed: A flue gas treatment box for the production of high-purity magnesite sand, including a box body 1, a smoke inlet pipe 2 is connected to the bottom of the box body 1, a one-way exhaust valve is fixedly connected to the top of one end of the smoke inlet pipe 2 located in the inner cavity of the box body 1, a neutralizing liquid tank 3 is fixedly connected to the bottom of the left side of the box body 1, a suction pump 4 is connected to the top of the neutralizing liquid tank 3, the top of the suction pump 4 is connected to a three-way valve 5 through a pipeline, the other end of the three-way valve 5 penetrates into the inner cavity of the box body 1 and is fixedly connected to a spray pipe 6, a spray head is fixedly connected to the inner wall of the spray pipe 6, a separation net 7 is fixedly connected to the top of the inner cavity of the box body 1, filter media is filled between the upper and lower separation nets 7, legs are fixedly connected to the four corners of the bottom of the box body 1, anti-slip patterns are provided at the bottoms of the legs, the number of separation nets 7 is two, a long groove 22 through which a hydraulic telescopic rod 16 moves is provided at the top of the upper separation net 7, a flow guide cone is fixedly connected to the top of the lower separation net 7, a material guide plate 23 is fixedly connected to the bottom of the inner cavity of the box body 1, a discharge pipe 24 is connected to the bottom of the right side of the box body 1, a smoke exhaust pipe 27 is connected to the top of the box body 1, a smoke exhaust fan is fixedly connected to the inner cavity of the smoke exhaust pipe 27. By providing the long groove 22, it is convenient for the left and right movement of the hydraulic telescopic rod 16. By providing the flow guide cone, it is convenient for the discharge of the filter media. By providing the material guide plate 23, it is convenient for the conduction of the guiding work. By using chemical reagents, a good filtration and purification effect can be achieved, and the flue gas to be purified and filtered can be further purified and filtered through the filter media, which can ensure the purification effect and is discharged through the smoke exhaust fan in the inner cavity of the smoke exhaust pipe 27. Embodiment 2:

[0026] Please refer to Figures 1 - 4, in order to achieve the purpose of facilitating the replacement of the filter element, the following technical solutions are provided in this embodiment, and specifically disclosed: A first motor 8 is fixedly connected to the top of the left side of the box body 1. The output shaft of the first motor 8 penetrates into the inner cavity of the box body 1 and is fixedly connected to a first threaded rod 9. The other end of the first threaded rod 9 is fixedly connected to the inner wall of the box body 1 through a bearing. A moving block 10 is threadedly connected to the surface of the first threaded rod 9. The bottom of the moving block 10 is fixedly connected to an installation box 11. A second motor 12 is fixedly connected to the back of the inner cavity of the installation box 11. The output shaft of the second motor 12 is fixedly connected to a second threaded rod 13. The other end of the second threaded rod 13 is fixedly connected to the inner wall of the installation box 11 through a bearing. A threaded block 14 is threadedly connected to the surface of the second threaded rod 13. The bottom of the threaded block 14 is fixedly connected to an installation block 15. The bottom of the installation block 15 penetrates to the bottom of the installation box 11 and is fixedly connected to a hydraulic telescopic rod 16. The bottom of the hydraulic telescopic rod 16 penetrates to the bottom of the top isolation net 7 and is fixedly connected to a vibration motor 17. A solenoid valve 18 is communicated with the center of the bottom of the bottom isolation net 7. A screw feeder 19 is fixedly connected to the right side of the box body 1. The discharge pipe of the screw feeder 19 penetrates into the inner cavity of the box body 1. A placement plate 20 is fixedly connected to the bottom of the right side of the box body 1. A material receiving box 21 is fixedly connected to the top of the placement plate 20. The bottom of the screw feeder 19 extends into the inner cavity of the material receiving box 21. A limiting rod 25 is slidably connected to the top of the inner cavity of the moving block 10. Both ends of the limiting rod 25 are fixedly connected to the inner wall of the box body 1. A moving groove 26 is opened at the bottom of the installation box 11. The installation block 15 is slidably connected to the inner wall of the moving groove 26. By providing the limiting rod 25, the moving block 10 can be limited to move left and right stably. By providing the moving groove 26, the front and back movement of the installation block 15 can be facilitated. By adopting the above structure, the automatic loading and unloading of the filter material can be realized, which brings great convenience to the daily maintenance work.

[0027] The control mode of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming of those skilled in the art, which belongs to the common knowledge in the art. And the present utility model is mainly used to protect mechanical devices, so the control mode and circuit connection of the present utility model will not be explained in detail.

[0028] During use, the flue gas is discharged into the inner cavity of the box body 1 through the smoke inlet pipe 2. At the same time, the neutralizing liquid in the inner cavity of the neutralizing liquid tank 3 is conveyed to the inner cavity of the spray pipe 6 through the three-way valve 5 by the suction pump 4 and sprayed out through the nozzle to carry out neutralization filtration treatment with the flue gas. The waste liquid generated by neutralization is discharged by regularly opening the discharge pipe 24. When the filter material needs to be replaced, the smoke inlet operation is stopped, and the waste liquid at the bottom of the inner cavity of the box body 1 is drained completely. Then, by opening the solenoid valve 18, the filter material can fall to the bottom of the inner cavity of the box body 1, and then is discharged through the discharge pipe 24 after being guided by the guide plate 23. After the filter material is completely discharged, the solenoid valve 18 is closed. Then, clean filter material is poured into the inner cavity of the material storage box 21 and fed through the spiral feeder 19 to the space between the upper and lower isolation nets 7. Then, the vibration motor 17 is driven to vibrate the filter bag by the hydraulic telescopic rod 16 to ensure the flatness of the filter material. Then, the first motor 8 drives the first threaded rod 9 to rotate, and the first threaded rod 9 drives the moving block 10 to move left and right. The moving block 10 drives the hydraulic telescopic rod 16 and the vibration motor 17 to move left and right through the mounting box 11. The second motor 12 drives the second threaded rod 13 to rotate, and the second threaded rod 13 drives the hydraulic telescopic rod 16 and the vibration motor 17 to move back and forth through the threaded block 14 and the mounting block 15, so as to ensure that the filter material is vibrated flat and thus ensure a good filtration effect.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flue gas treatment box for the production of high-purity magnesite, comprising a box body (1), characterized in that: The bottom of the box body (1) is communicated with a smoke inlet pipe (2). A one-way exhaust valve is fixedly connected to the top of one end of the smoke inlet pipe (2) located in the inner cavity of the box body (1). A neutralizing liquid tank (3) is fixedly connected to the bottom of the left side of the box body (1). A suction pump (4) is communicated with the top of the neutralizing liquid tank (3). The top of the suction pump (4) is connected to a three-way valve (5) through a pipeline. The other end of the three-way valve (5) penetrates into the inner cavity of the box body (1) and is fixedly connected to a spray pipe (6). Nozzles are fixedly connected to the inner wall of the spray pipe (6). A separation net (7) is fixedly connected to the top of the inner cavity of the box body (1). Filter materials are filled between the upper and lower separation nets (7). A first motor (8) is fixedly connected to the top of the left side of the box body (1). The output shaft of the first motor (8) penetrates into the inner cavity of the box body (1) and is fixedly connected to a first threaded rod (9). The other end of the first threaded rod (9) is fixedly connected to the inner wall of the box body (1) through a bearing. A moving block (10) is threadedly connected to the surface of the first threaded rod (9). An installation box (11) is fixedly connected to the bottom of the moving block (10). A second motor (12) is fixedly connected to the back of the inner cavity of the installation box (11). The output shaft of the second motor (12) is fixedly connected to a second threaded rod (13). The other end of the second threaded rod (13) is fixedly connected to the inner wall of the installation box (11) through a bearing. A threaded block (14) is threadedly connected to the surface of the second threaded rod (13). An installation block (15) is fixedly connected to the bottom of the threaded block (14). The bottom of the installation block (15) penetrates to the bottom of the installation box (11) and is fixedly connected to a hydraulic telescopic rod (16). The bottom of the hydraulic telescopic rod (16) penetrates to the bottom of the top separation net (7) and is fixedly connected to a vibration motor (17). A solenoid valve (18) is communicated with the bottom center of the bottom separation net (7). A screw feeder (19) is fixedly connected to the right side of the box body (1). The discharge pipe of the screw feeder (19) penetrates into the inner cavity of the box body (1). A placement plate (20) is fixedly connected to the bottom of the right side of the box body (1). A material receiving box (21) is fixedly connected to the top of the placement plate (20). The bottom of the screw feeder (19) extends into the inner cavity of the material receiving box (21).

2. The flue gas treatment box for the production of high-purity magnesia according to claim 1, characterized in that: Legs are fixedly connected to the four corners of the bottom of the box body (1). Anti-slip patterns are provided at the bottoms of the legs.

3. The flue gas treatment box for high-purity magnesite production according to claim 1, characterized in that: The number of the separation nets (7) is two. A long groove (22) for moving through the hydraulic telescopic rod (16) is provided at the top of the top separation net (7). A diversion cone is fixedly connected to the top of the bottom separation net (7).

4. The flue gas treatment box for the production of high-purity magnesite according to claim 1, characterized in that: A material guiding plate (23) is fixedly connected to the bottom of the inner cavity of the box body (1). A discharge pipe (24) is communicated with the bottom of the right side of the box body (1).

5. The flue gas treatment box for high-purity magnesia production according to claim 1, characterized in that: A limiting rod (25) is slidably connected to the top of the inner cavity of the moving block (10). Both ends of the limiting rod (25) are fixedly connected to the inner wall of the box body (1).

6. The flue gas treatment box for the production of high-purity magnesite sand according to claim 1, characterized in that: A moving groove (26) is formed in the bottom of the installation box (11), and the installation block (15) is slidably connected to the inner wall of the moving groove (26).

7. The flue gas treatment box for the production of high-purity magnesite according to claim 1, characterized in that: A smoke exhaust pipe (27) communicates with the top of the box body (1), and a smoke exhaust fan is fixedly connected to the inner cavity of the smoke exhaust pipe (27).

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