An environmentally friendly wet electrostatic precipitator

Abstract

This utility model discloses an environmentally friendly wet electrostatic precipitator, relating to the field of dust removal technology. The environmentally friendly wet electrostatic precipitator includes a support column, on which a housing is fixedly connected. A fan for introducing dust-laden gas is fixedly connected to one side of the housing. A frame is fixedly connected to the top of the housing's inner side, and discharge electrodes and dust collection electrodes are fixedly connected to the frame. A water tank is fixedly connected to the housing. A strip tube is fixedly connected to the top of the housing's inner side, and a nozzle is fixedly connected to the bottom of the strip tube. The nozzle is installed at the top of the electric field and above the dust collection electrodes. A dust hopper is fixedly connected to the housing, and a dust discharge port is fixedly connected to the bottom of the dust hopper. A water circulation system consisting of a circulating pump and circulating pipes recovers and filters the wastewater generated from rinsing the dust collection electrodes for reuse, greatly reducing the consumption of fresh water and wastewater discharge, which aligns with environmental protection principles and reduces environmental pollution and water resource consumption.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology, and in particular to an environmentally friendly wet electrostatic precipitator. Background Technology

[0002] In industrial production processes, such as thermal power generation, steel smelting, and chemical manufacturing, a large amount of waste gas containing pollutants such as dust, fine particulate matter, and acid mist is generated. If this waste gas is discharged directly into the atmosphere without effective treatment, it will cause serious pollution to the environment, harm human health, and cause respiratory and cardiovascular diseases. It will also damage ecosystems and buildings.

[0003] While traditional dry electrostatic precipitators can separate and collect dust to a certain extent, they are not very effective at removing fine particulate matter. Moreover, when dealing with high resistivity dust, dry electrostatic precipitators are prone to back corona discharge, which leads to a decrease in dust removal efficiency. In addition, dry electrostatic precipitators can generate secondary dust re-entrainment during the cleaning process, causing secondary pollution.

[0004] Compared to dry electrostatic precipitators, wet electrostatic precipitators have significant advantages in handling fine particulate matter and acid mist, achieving higher dust removal efficiency and effectively preventing secondary dust re-entrainment. However, existing wet electrostatic precipitators still have some shortcomings, such as high water consumption, large wastewater discharge, suboptimal equipment structure, and high operating costs.

[0005] Therefore, developing a high-efficiency, water-saving, structurally sound, and low-cost environmentally friendly wet electrostatic precipitator is of great significance for improving the purification level of industrial waste gas and achieving sustainable development. Utility Model Content

[0006] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an environmentally friendly wet electrostatic precipitator that can solve the above-mentioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly wet electrostatic precipitator, comprising a support column, a housing fixedly connected to the support column, and a fan for introducing dust-laden gas fixedly connected to one side of the housing;

[0008] A frame is fixedly connected to the top of the inner side of the box, and a discharge electrode and a dust collection electrode are fixedly connected to the frame.

[0009] A water tank is fixedly connected to the box body, a strip tube is fixedly connected to the top of the inner side of the box body, and a nozzle is fixedly connected to the bottom of the strip tube. The nozzle is installed at the top of the electric field and above the dust collection electrode.

[0010] A dust hopper is fixedly connected inside the box, and a dust discharge port is fixedly connected to the bottom of the dust hopper. The dust discharge port is fixedly connected to the bottom of the box, and a filter hole is provided on the dust hopper.

[0011] The bottom of the box is fixedly connected to an ash storage bin, and a drawer is slidably connected to the ash storage bin.

[0012] Preferably, the strip tubes are arranged linearly.

[0013] Preferably, the ash hopper is inverted conical in shape.

[0014] Preferably, the discharge electrode is made of a novel type of barbed wire evenly installed on the frame, and the dust collection electrode is a flat plate structure and arranged vertically.

[0015] Preferably, a circulation pump is fixedly connected to one side of the tank, and a circulation pipe is fixedly connected to the circulation pump. One end of the circulation pipe is fixedly connected to the water tank, and the other end is fixedly connected to the inside of the tank.

[0016] Preferably, the nozzle is a spiral solid cone nozzle.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) This environmentally friendly wet electrostatic precipitator features a new type of barbed wire discharge electrode with low corona voltage and high corona current, which enables the dust to be fully charged. Combined with the reasonable layout of the flat dust collection electrode, it significantly improves the dust collection efficiency, effectively removes fine particulate matter, achieves high-efficiency dust removal, and meets strict environmental emission standards. The inverted conical design of the ash hopper and the setting of the filter holes achieve effective separation of dust and wastewater, improving the efficiency of dust collection and treatment. The drawer design of the ash storage bin makes it convenient for staff to clean the collected dust regularly without complicated operating procedures, reducing the intensity of manual labor and improving the convenience of equipment maintenance.

[0019] (2) This environmentally friendly wet electrostatic precipitator uses a water circulation system consisting of a circulating pump and a circulating pipeline to recover and filter the wastewater generated from rinsing the dust collection electrode and reuse it. This greatly reduces the amount of fresh water used and the wastewater discharge, which is in line with the concept of environmental protection and reduces pollution to the environment and the consumption of water resources. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of an environmentally friendly wet electrostatic precipitator according to the present invention;

[0022] Figure 2 This is a schematic diagram of an environmentally friendly wet electrostatic precipitator according to the present invention;

[0023] Figure 3 This is a cross-sectional schematic diagram of an environmentally friendly wet electrostatic precipitator according to this utility model;

[0024] Figure 4 This is a cross-sectional schematic diagram of an environmentally friendly wet electrostatic precipitator according to this utility model.

[0025] Attached reference numerals: 1. Support column; 2. Box body; 3. Fan; 4. Frame; 5. Discharge electrode; 6. Dust collection electrode; 7. Water tank; 8. Strip tube; 9. Nozzle; 10. Ash hopper; 11. Filter hole; 12. Dust discharge port; 13. Ash storage bin; 14. Drawer; 15. Circulation pump; 16. Circulation pipeline. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please see Figure 1-4This utility model provides a technical solution: an environmentally friendly wet electrostatic precipitator, including a support column 1, a housing 2 fixedly connected to the support column 1, a fan 3 fixedly connected to one side of the housing 2, a frame 4 fixedly connected to the top of the inner side of the housing 2, a discharge electrode 5 fixedly connected to the frame 4, the discharge electrode 5 adopts a new type of barbed wire, is evenly installed on the frame 4, and is distributed in a linear shape, and a dust collection electrode 6 is fixedly connected to the frame 4, the dust collection electrode 6 is a flat plate structure, vertically arranged, and staggered with the discharge electrode 5, together forming the core area of ​​the electric field system;

[0031] A water tank 7 is fixedly connected to the housing 2. A strip tube 8 is fixedly connected to the top of the inner side of the housing 2. The strip tubes 8 are arranged linearly. The water tank 7 is connected to the strip tubes 8 through pipes. A nozzle 9 is fixedly connected to the bottom of the strip tube 8. The nozzle 9 is installed at a preset position above the electric field and above the dust collection electrode 6 through the strip tube 8 to ensure that the spray can cover the entire surface of the dust collection electrode 6.

[0032] A dust hopper 10 is fixedly connected inside the housing 2. The dust hopper 10 is inverted cone shape and is used to receive dust and sewage washed down from the dust collection electrode 6. A dust discharge port 12 is fixedly connected to the bottom of the dust hopper 10. The dust discharge port 12 is fixedly connected to the bottom of the housing 2. A filter hole 11 is opened on the dust hopper 10. Sewage falls to the bottom of the housing 2 through the filter hole 11, and dust is intercepted by the filter hole 11 and flows along the dust hopper 10 to the dust discharge port 12.

[0033] A ash storage bin 13 is fixedly connected to the bottom of the box 2, and a drawer 14 is slidably connected to the ash storage bin 13.

[0034] A circulation pump 15 is fixedly connected to one side of the tank 2. A circulation pipe 16 is fixedly connected to the circulation pump 15. One end of the circulation pipe 16 is fixedly connected to the water tank 7, and the other end of the circulation pipe 16 is fixedly connected to the inside of the tank 2.

[0035] The discharge electrode 5, the dust collection electrode 6, and the circulation pump 15J are all known technical means. For those skilled in the art, these technical means can be easily implemented without the need for creative experiments, so they will not be described in detail here.

[0036] Working principle: Dust-laden gas is introduced into the housing 2 by the fan 3 and enters the electric field region composed of the discharge electrode 5 and the dust collection electrode 6. The discharge electrode 5 ionizes the surrounding gas under the action of high voltage, generating a large number of electrons and ions. These charged particles collide with the dust particles in the dust-laden gas, making the dust particles charged. The charged dust particles move towards the dust collection electrode 6 under the action of the electric field force and are adsorbed on its surface.

[0037] When the dust on the surface of the dust collecting electrode 6 accumulates to a certain extent, the water in the water tank 7 is transported to the strip tube 8 through the pipe, and then evenly sprayed on the top of the electric field and above the dust collecting electrode 6 through the nozzle 9, forming water mist and forming a water film on the surface of the dust collecting electrode 6. The water film washes away the dust adsorbed on the dust collecting electrode 6, forming dust-laden wastewater.

[0038] Dust-laden wastewater flows downwards and enters the inverted cone-shaped ash hopper 10. The filter holes 11 on the ash hopper 10 filter the wastewater, allowing it to fall to the bottom of the box 2 through the filter holes 11. The dust is intercepted and slides along the inner wall of the ash hopper 10 to the dust discharge port 12 under the action of gravity, and finally falls into the drawer 14 of the ash storage bin 13 for easy centralized cleaning.

[0039] The sewage at the bottom of the tank 2 is pumped back to the water tank 7 by the circulation pump 15 through the circulation pipe 16, realizing the recycling of water resources, reducing water waste and sewage discharge. Throughout the process, the fan 3 continuously provides power to ensure that dust-laden gas continuously enters the equipment for purification treatment, achieving efficient dust removal of industrial waste gas.

[0040] The new type of barbed wire discharge electrode 5 has a low corona voltage and a large corona current, which can fully charge the dust. Combined with the reasonable layout of the flat plate dust collection electrode 6, it significantly improves the dust collection efficiency, effectively removes fine particulate matter, achieves high-efficiency dust removal, and meets strict environmental emission standards.

[0041] The water circulation system, consisting of the circulation pump 15 and the circulation pipe 16, recovers and filters the wastewater generated from flushing the dust collection electrode 6 and reuses it, which greatly reduces the amount of fresh water used and reduces wastewater discharge. This is in line with the concept of environmental protection and reduces pollution to the environment and consumption of water resources.

[0042] The inverted conical design of the ash hopper 10 and the setting of the filter holes 11 achieve effective separation of dust and wastewater, improving the efficiency of dust collection and treatment. The drawer 14 design of the ash storage bin 13 makes it convenient for staff to clean the collected dust regularly without complicated operating procedures, reducing the intensity of manual labor and improving the convenience of equipment maintenance.

[0043] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An environmentally friendly special-purpose wet-type electric dust collector comprising a support column (1), characterized in that: A box (2) is fixedly connected to the support column (1), and a fan (3) for introducing dust-laden gas is fixedly connected to one side of the box (2); A frame (4) is fixedly connected to the top of the inner side of the box (2), and a discharge electrode (5) and a dust collection electrode (6) are fixedly connected to the frame (4); A water tank (7) is fixedly connected to the box body (2), a strip tube (8) is fixedly connected to the top of the inner side of the box body (2), and a nozzle (9) is fixedly connected to the bottom of the strip tube (8). The nozzle (9) is installed on the top of the electric field and above the dust collection electrode (6). A dust hopper (10) is fixedly connected inside the box (2). A dust discharge port (12) is fixedly connected to the bottom of the dust hopper (10). The dust discharge port (12) is fixedly connected to the bottom of the box (2). A filter hole (11) is opened on the dust hopper (10). The bottom of the box (2) is fixedly connected to a ash storage bin (13), and a drawer (14) is slidably connected to the ash storage bin (13).

2. The environmentally friendly special-purpose wet-type electric dust collector according to claim 1, characterized by: The strip tubes (8) are arranged linearly.

3. The special environmentally friendly wet-type electric dust collector according to claim 2, characterized in that: The ash hopper (10) is an inverted cone shape.

4. The special environmentally friendly wet-type electric dust collector according to claim 3, characterized in that: The discharge electrode (5) is uniformly installed on the frame (4) using a new type of barbed wire, and the dust collection electrode (6) is a flat plate structure and is arranged vertically.

5. The environmentally friendly special-purpose wet-type electric dust collector according to claim 4, characterized by: A circulation pump (15) is fixedly connected to one side of the box (2), and a circulation pipe (16) is fixedly connected to the circulation pump (15). One end of the circulation pipe (16) is fixedly connected to the water tank (7), and the other end is fixedly connected to the inside of the box (2).

6. The environmentally friendly wet electrostatic precipitator according to claim 5, characterized in that: The nozzle (9) is a spiral solid cone nozzle.

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