Electrostatic dust collector for barium carbonate production

Abstract

The utility model discloses an electrostatic dust collector for barium carbonate production, which comprises an absorption tank and an electrostatic dust collector, the absorption tank is communicated with the electrostatic dust collector, and a waste gas inlet pipe and a waste liquid discharge pipe are arranged on the absorption tank. And a rotatable stirring shaft is arranged in the absorption tank and is driven by an external motor. And the top of the absorption tank is communicated with the side wall of the electrostatic dust collector through a waste gas secondary inlet pipe. The utility model relates to the technical field of electrostatic dust collectors, in particular to an electrostatic dust collector for barium carbonate production, an existing structure is improved, an original sewage tank and an original sedimentation tank are combined into a whole and are collectively called as an absorption tank, and the absorption tank not only can absorb harmful substances in flue gas, but also can receive discharged waste, that is to say, the absorption tank can be used for absorbing harmful substances in the flue gas. Compared with the prior art, two pools are needed to complete the work, now, only one pool is needed to complete the work, and therefore the occupied area of the combined absorption pool is greatly reduced compared with the sum of the areas of a sewage pool and a sedimentation pool before improvement.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic precipitators, in particular to an electrostatic precipitator for barium carbonate production. Background Technique

[0002] In the production process of barium carbonate, there are problems related to the emission of some waste flue gases. In order to meet environmental protection requirements, an electrostatic precipitator is needed to treat the waste flue gases.

[0003] For example, a high-voltage electrostatic precipitator with a pre-set washing sedimentation tank disclosed in the Chinese authorized patent CN214021379 U. By setting a washing sedimentation device at the lower end of the high-voltage electrostatic precipitator, the flue gas can pass through the washing tank to wash and sediment the coarse particles before entering the high-voltage electrostatic precipitator, thereby reducing the load of the high-voltage electrostatic precipitator. And the spray water in the high-voltage electrostatic precipitator can enter the washing tank, so that the washing tank can play a role of water seal.

[0004] The problem with the above device is that it occupies too much ground area. Its washing sedimentation tank is divided into a sewage tank and a sedimentation tank, and they operate independently without mixing. Therefore, we propose an electrostatic precipitator with an absorption tank. This absorption tank has the dual functions of absorbing waste gas and discharging sewage. Therefore, only one tank needs to be set up as a whole, greatly reducing the floor area. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides an electrostatic precipitator for barium carbonate production, which solves the problem of large floor area of the existing electrostatic precipitator.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the utility model provides the following technical solutions: An electrostatic precipitator for barium carbonate production includes an absorption tank and an electrostatic precipitator. The absorption tank is communicated with the electrostatic precipitator. An exhaust gas inlet pipe and a waste liquid discharge pipe are arranged on the absorption tank.

[0009] A rotatable stirring shaft is installed inside the absorption tank, and the stirring shaft is driven by an external motor.

[0010] The top of the absorption tank is communicated with the side wall of the electrostatic precipitator through a secondary exhaust gas inlet pipe.

[0011] A heating resistor, a dust collection filter bag and a spray pipe are respectively arranged on the inner wall of the electrostatic precipitator from bottom to top. A pump is arranged on the top of the absorption tank, and the output port of the pump is communicated with the spray pipe.

[0012] A waste discharge mechanism is arranged inside the electrostatic precipitator.

[0013] As a further preference, the waste discharging mechanism includes a filter screen disposed inside the electrostatic precipitator. A first cylinder and a first sealing door are respectively disposed on the left and right sides of the filter screen. A sealing plate is disposed at the free end of the first cylinder, and a storage box is disposed below the first sealing door.

[0014] As a further preference, the waste discharging mechanism includes support frames on the left and right inner walls of the electrostatic precipitator. A filter screen plate is rotatably installed between the support frames. A second cylinder is disposed below the filter screen plate. A storage box is disposed at the free end of the second cylinder, and a second sealing door is detachably installed on the upper shell of the storage box.

[0015] As a further preference, a vibration motor is disposed on the back surface of the filter screen plate.

[0016] As a further preference, the inlet of the waste gas secondary inlet pipe is in a horn shape, and its outlet is located inside the electrostatic precipitator and is downwardly disposed.

[0017] (III) Beneficial effects

[0018] The present utility model provides an electrostatic precipitator for barium carbonate production, having the following beneficial effects:

[0019] For the electrostatic precipitator for barium carbonate production, by improving the existing structure, the original sewage tank and sedimentation tank are combined into one, collectively referred to as an absorption tank. This absorption tank can not only absorb harmful substances in the flue gas, but also receive waste discharge. That is to say, what used to require two tanks can now be completed with just one tank. Therefore, the floor area of the combined absorption tank is greatly reduced compared to the sum of the areas of the original sewage tank and sedimentation tank before improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the first embodiment of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the second embodiment of the present utility model.

[0022] In the figure: 1, absorption tank; 2, electrostatic precipitator; 3, waste gas inlet pipe; 4, stirring shaft; 5, motor; 6, waste liquid discharge pipe; 7, waste gas secondary inlet pipe; 8, heating resistor; 9, dust collection filter bag; 10, spray pipe; 11, pump; 12, filter screen; 13, first cylinder; 14, sealing plate; 15, first sealing door; 16, storage box; 17, support frame; 18, filter screen plate; 19, second cylinder; 20, storage box; 21, second sealing door; 22, vibration motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

[0024] As Figure 1-2 shown, the present utility model provides a technical solution: an electrostatic precipitator for barium carbonate production, including an absorption tank 1 and an electrostatic precipitator 2. The absorption tank 1 is communicated with the electrostatic precipitator 2. An exhaust gas inlet pipe 3 and a waste liquid discharge pipe 6 are arranged on the absorption tank 1.

[0025] A rotatable stirring shaft 4 is installed inside the absorption tank 1, and the stirring shaft 4 is driven by an external motor 5.

[0026] The top of the absorption tank 1 is communicated with the side wall of the electrostatic precipitator 2 through an exhaust gas secondary inlet pipe 7. The inlet of the exhaust gas secondary inlet pipe 7 is in a horn shape (facilitating the rapid entry of exhaust gas into the electrostatic precipitator 2), and its outlet is located inside the electrostatic precipitator 2 and is arranged downward, which can prevent the waste liquid falling from the dust collection filter bag 9 from pouring into the exhaust gas secondary inlet pipe 7.

[0027] The inner wall of the electrostatic precipitator 2 is provided with a heating resistor 8, a dust collection filter bag 9 and a spray pipe 10 from bottom to top. A pump 11 is arranged on the top of the absorption tank 1, and the output port of the pump 11 is communicated with the spray pipe 10.

[0028] A waste discharge mechanism is arranged inside the electrostatic precipitator 2.

[0029] First Embodiment

[0030] The waste discharge mechanism includes a filter screen 12 arranged inside the electrostatic precipitator 2. A first cylinder 13 and a first sealing door 15 are respectively arranged on the left and right sides of the filter screen 12. A sealing plate 14 is arranged at the free end of the first cylinder 13. A first storage box 16 is arranged below the first sealing door 15. The waste impurities in the waste liquid are received through the filter screen 12, and the liquid filters down through the filter screen 12. The first cylinder 13 is opened to drive the sealing plate 14 to move, and the waste on the filter screen 12 is cleaned by the sealing plate 14. The first sealing door 15 is opened, and the waste falls into the first storage box 16. In this way, the smoothness of the filter screen 12 can be ensured. During dust removal, the sealing plate 14 and the first sealing door 15 are respectively blocked to prevent the escape of exhaust gas. The second sealing door 21 can be opened to clean the waste in the second storage box 20.

[0031] Second Embodiment

[0032] The waste discharging mechanism includes support frames 17 on the left and right inner walls of the electrostatic precipitator 2. A filter screen plate 18 is rotatably installed between the support frames 17. A vibration motor 22 is arranged on the back of the filter screen plate 18. A second air cylinder 19 is arranged below the filter screen plate 18. The free end of the second air cylinder 19 is provided with a second storage box 20. The upper shell of the second storage box 20 is detachably installed with a second sealing door 21. During dust removal, the filter screen plate 18 is in the Figure 2 state shown in the figure, and the entire dust removal channel is unobstructed. When the spray pipe 10 works, the filter screen plate 18 is driven by an external motor to rotate to a horizontal position to receive waste impurities. Then, the second air cylinder 19 is started to drive the second storage box 20 into the electrostatic precipitator 2. Then, the filter screen plate 18 is rotated to pour the waste on it into the second storage box 20 below. In order to thoroughly clean the waste, the vibration motor 22 is turned on to shake the waste into the second storage box 20.

[0033] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0034] During use, waste flue gas is received through the waste gas inlet pipe 3. The waste flue gas contacts the absorption liquid in the absorption pool 1. The motor 5 is started to drive the stirring shaft 4 to rotate, so that the waste flue gas and the absorption liquid are fully contacted to absorb impurities such as sulfur-containing components therein.

[0035] The waste flue gas after stirring enters the electrostatic precipitator 2 through the waste gas secondary inlet pipe 7. The heating resistor 8 is turned on to raise the temperature inside the electrostatic precipitator 2, so as to drive the waste flue gas to rise. Then, the dust impurities are absorbed through the dust collection filter bag 9. Finally, the waste gas is discharged through the top outlet of the electrostatic precipitator 2.

[0036] By starting the pump 11, the absorption liquid in the absorption pool 1 is sprayed out through the spray pipe 10 to clean the dust collection filter bag 9. The waste after cleaning is intercepted by the waste discharging mechanism, and the liquid flows back to the absorption pool 1 through the bottom outlet of the electrostatic precipitator 2. Because the waste is intercepted and will not flow into the absorption pool 1, the components in the absorption pool 1 are relatively stable. Therefore, there is no need to specially set up a sedimentation tank for sedimenting waste, thus reducing the floor area.

[0037] In summary, for the electrostatic precipitator used in barium carbonate production, by improving the existing structure, the original sewage tank and sedimentation tank are combined into one, collectively referred to as the absorption pool. This absorption pool can not only absorb harmful substances in the flue gas, but also receive waste discharge. That is to say, what used to require two pools can now be done with only one pool. Therefore, the floor area of the combined absorption pool is greatly reduced compared to the sum of the areas of the original sewage tank and sedimentation tank before improvement.

[0038] It should be noted that all the electrical components mentioned in this article are electrically connected to the external main controller and the 220V or 380V mains power supply. The main controller can be a conventional known device such as a computer for control. Its control principle, internal structure, control switch mode, etc. are all conventional means of the existing technology and are directly cited here without further elaboration. In this article, relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art 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. An electrostatic precipitator for barium carbonate production, characterized in that: The invention comprises an absorption tank (1) and an electrostatic precipitator (2), wherein the absorption tank (1) is connected to the electrostatic precipitator (2), and an exhaust gas inlet pipe (3) and a exhaust liquid discharge pipe (6) are arranged on the absorption tank (1); A rotatable stirring shaft (4) is installed inside the absorption tank (1), and the stirring shaft (4) is driven by an external motor (5); The top of the absorption tank (1) is connected to the side wall of the electrostatic precipitator (2) via a secondary exhaust gas inlet pipe (7); The inner wall of the electrostatic precipitator (2) is provided with a heating resistor (8), a dust collection filter bag (9) and a spray pipe (10) from bottom to top, and a pump (11) is provided on the top of the absorption tank (1), and the output port of the pump (11) is connected to the spray pipe (10); A waste discharge mechanism is arranged inside the electrostatic precipitator (2).

2. An electrostatic precipitator for barium carbonate production according to claim 1, characterized in that: The waste discharge mechanism comprises a filter screen (12) arranged inside the electrostatic precipitator (2), a first cylinder (13) and a first sealing door (15) are respectively arranged on the left and right sides of the filter screen (12), a sealing plate (14) is arranged at the free end of the first cylinder (13), and a storage box (16) is arranged below the first sealing door (15).

3. An electrostatic precipitator for barium carbonate production according to claim 1, characterized in that: The waste discharge mechanism comprises a support frame (17) located on the left and right inner walls of the electrostatic precipitator (2), a filter plate (18) is rotatably mounted between the support frames (17), a second cylinder (19) is arranged below the filter plate (18), a second storage box (20) is arranged at the free end of the second cylinder (19), and a second sealing door (21) is detachably mounted on the upper shell of the second storage box (20).

4. An electrostatic precipitator for barium carbonate production according to claim 3, characterized in that: A vibration motor (22) is arranged on the back side of the filter plate (18).

5. The electrostatic precipitator for barium carbonate production according to claim 1, characterized in that: The inlet of the secondary exhaust gas inlet pipe (7) is trumpet-shaped, and the outlet thereof is located inside the electrostatic precipitator (2) and is arranged downward.

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