Wet type electrostatic dust collector

Abstract

The utility model relates to the technical field of electrostatic dust collectors, in particular to a wet-type electrostatic dust collector which comprises a dust collector shell, an electrostatic dust collection assembly and a spraying assembly arranged above the electrostatic dust collection assembly are arranged in the dust collector shell, and the electrostatic dust collection assembly comprises a plurality of anode tubes arranged in a honeycomb shape. A cathode wire is hung in each anode tube, a wastewater treatment assembly for filtering spraying wastewater is arranged at the bottom of the dust remover shell, the wastewater treatment assembly comprises a tank body, filtering assemblies are oppositely arranged in the tank body, the filtering assemblies are arranged in the tank body in a drawable manner, flushing pieces are oppositely arranged in the tank body between the filtering assemblies, and the flushing pieces are arranged in the tank body between the filtering assemblies. The washing part is used for backwashing the filtering assembly. Through the arrangement of the wastewater treatment assembly, wastewater sprayed by the spraying assembly can enter the tank body, and the wastewater is filtered by the filtering assembly, so that the filtered wastewater is recycled subsequently, and the utilization rate of a water source is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrostatic precipitator technical field, specifically, relate to a wet electrostatic precipitator. BACKGROUND

[0002] It is known that the working principle of the wet electrostatic precipitator is that when the exhaust gas passes through the electric field region arranged with cathode wires, the cathode wires apply high voltage to generate corona discharge, so that the dust particles in the exhaust gas are charged, and the charged dust particles move to the anode tube with opposite polarity under the action of electric field force and deposit on the inner wall, and then the acid mist attached to the inner wall of the anode tube is washed down through the spraying system, and the honeycomb type wet electrostatic precipitator is provided with the anode tube in a honeycomb shape to increase the surface area and improve the dust removal efficiency.

[0003] For example, the high-efficiency energy-saving honeycomb type wet electrostatic precipitator disclosed in the patent with the announcement number CN118649781B can control the cooling mechanism to perform cooling treatment on the flue gas temperature when the flue gas temperature detected by the temperature detection component reaches the preset temperature value T1, thereby reducing the harm caused by high temperature; however, in actual use, the spraying system sprays a lot of water source, and the water source after spraying and dust removal is not recycled, resulting in waste of water source, which needs to be improved. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a wet electrostatic precipitator to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A wet electrostatic precipitator, comprising a dust collector shell, an electrostatic precipitation assembly and a spraying assembly arranged above the electrostatic precipitation assembly are arranged in the dust collector shell, the electrostatic precipitation assembly comprises a plurality of anode tubes arranged in a honeycomb shape, a cathode wire is suspended in each anode tube, a wastewater treatment assembly for filtering and treating the sprayed wastewater is arranged at the bottom of the dust collector shell, the wastewater treatment assembly comprises a tank body, a filter assembly is arranged opposite in the tank body, the filter assembly is pullably arranged in the tank body, a flushing element is arranged opposite in the tank body between the filter assemblies, and the flushing element is used for backwashing the filter assembly.

[0007] Further, mounting tables are arranged opposite in the tank body, the filter assembly is slidingly lapped on the corresponding mounting table, and the mounting table is used for dividing the tank body into a water collecting cavity located at the middle part and water inlet cavities located at both sides.

[0008] Further, a pull-out slot is formed on the side wall of the groove body, and the filter assembly is slidably connected to the mounting table through the pull-out slot.

[0009] Further, a slide groove is formed on the upper and lower side walls of the filter frame along the length direction, and a slide block is arranged on the upper side wall of the mounting table and the top wall of the groove body and located in the corresponding slide groove.

[0010] Further, the outer side wall of the filter frame near the pull-out slot extends outward to form a mounting portion, and the mounting portion is fixed to the outer side wall of the groove body through a bolt, so as to realize the sliding connection of the filter frame on the mounting table.

[0011] Further, the side walls of the filter frame abutting each other are respectively provided with a protrusion and a groove, and the protrusion is clamped into the opposite groove to realize the connection between the adjacent filter frames.

[0012] Further, the flushing member comprises a flushing frame, and the flushing frame is uniformly provided with flushing pipes, and the flushing pipes are provided with nozzles for flushing the filter screen, and the bottom of the water collecting cavity is further provided with a first circulating pump for pumping the water in the water collecting cavity into the flushing pipes.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The wastewater treatment assembly is arranged, so that the wastewater sprayed by the spraying assembly can enter the groove body, the wastewater is filtered by the filter assembly, and the filtered wastewater is recycled for subsequent use, thereby improving the utilization rate of water sources.

[0015] 2. The flushing member is arranged, so that in actual use, the filtered wastewater is injected into the flushing member through the first circulating pump, the flushing member can backwash the filter screen to avoid the blockage of the filter screen, and the backwashed wastewater is collected in the water collecting cavity after being filtered by the filter screen again, so that the wastewater is recycled to improve the utilization rate of water sources. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of a wet-type electrostatic precipitator in the utility model.

[0017] Figure 2 It is a structure schematic view of a wet-type electrostatic precipitator in the utility model.

[0018] Figure 3 It is a structure schematic view of a wastewater treatment assembly in the utility model.

[0019] Figure 4 It is a sectional view of the wastewater treatment assembly in the utility model.

[0020] Figure 5 It is a structure schematic view of the filter assembly in the utility model.

[0021] Figure 6 It is a structure schematic view of the flushing part in the utility model.

[0022] The meanings of the various reference numerals in the figures are as follows: 10, electrostatic dust removal assembly; 20, spraying assembly; 30, mounting bracket; 110, mounting frame; 120, upper cover body; 121, gas outlet; 130, lower cover body; 131, gas inlet; 140, groove body; 150, conduit; 210, anode pipe; 310, on-off valve; 320, cover plate; 401, water collecting cavity; 402, water inlet cavity; 4021, upper cavity; 4022, lower cavity; 410, mounting table; 420, partition plate; 421, residue discharge pipe; 510, filter frame; 511, chute; 512, mounting portion; 513, protruding block; 520, filter screen; 610, flushing frame; 620, flushing pipe; 621, spray head. DETAILED DESCRIPTION

[0023] In order to further understand the content of the utility model, the utility model is described in detail in combination with the drawings and examples. It should be understood that the examples are merely used to explain the utility model and not to limit it.

[0024] The following describes the utility model in combination with the drawings and examples. Figures 1-6 The example is described in further detail.

[0025] Please refer to Figures 1-2 A wet electrostatic precipitator in the example comprises a precipitator shell, the precipitator shell is provided with an electrostatic dust removal assembly 10 and a spraying assembly 20 arranged above the electrostatic dust removal assembly 10, the electrostatic dust removal assembly 10 comprises a plurality of anode pipes 210 arranged in a honeycomb shape, and a cathode wire is hung in each anode pipe 210, wherein the precipitator shell comprises a mounting frame 110, the electrostatic dust removal assembly 10 is provided with a plurality of groups and is installed side by side in the mounting frame 110, specifically, an upper end portion of the mounting frame 110 is provided with an upper cover body 120 covering upper ends of the anode pipes 210, a lower end portion of the mounting frame 110 is provided with a lower cover body 130 covering lower ends of the anode pipes 210, an upper end of the upper cover body 120 is provided with a gas outlet 121, and a sidewall of the lower cover body 130 is provided with a gas inlet 131.

[0026] Specifically, the spraying assembly 20 comprises a spraying frame fixedly installed in the upper cover body 120, spraying pipes are arranged on the spraying frame, and spray heads are distributed on the spraying pipes.

[0027] In the embodiment, a wastewater treatment assembly for filtering and treating the sprayed wastewater is arranged at the bottom of the dust remover shell, and the wastewater treatment assembly comprises a tank body 140. Opposite the tank body 140, a filtering assembly is arranged. The filtering assembly is slidably arranged in the tank body 140. Opposite the filtering assembly in the tank body 140, a flushing member is arranged. The flushing member is used for back-flushing the filtering assembly.

[0028] In actual use, the tank body 140 is arranged at the bottom of the mounting frame 110. A blowdown pipe is arranged at the lower end of the lower cover body 130. The blowdown pipe guides the sprayed wastewater from both sides of the tank body 140 into the tank body 140 through a conduit 150, so that the filtering assembly can be filtered and treated, and the filtered wastewater can be recycled.

[0029] In actual use, when the filtering assembly is blocked after long-time use, the flushing member is used to back-flush the filtering assembly, so as to avoid the blocking of the filtering assembly and ensure the filtering effect of the filtering assembly on the wastewater.

[0030] In combination with Figure 3 and Figure 4 In the embodiment, opposite the tank body 140, a mounting table 410 is arranged. The filtering assembly is slidably connected to the corresponding mounting table 410. The mounting table 410 is used to divide the tank body 140 into a water collecting cavity 401 located at the middle part and water inlet cavities 402 located at both sides. A partition plate 420 is arranged in the water inlet cavity 402. The partition plate 420 is used to divide the water inlet cavity 402 into an upper cavity 4021 and a lower cavity 4022. The partition plate 420 is provided with a residue discharge pipe 421 extending into the lower cavity 4022. The residue discharge pipe 421 is provided with an electromagnetic valve. The conduit 150 communicates with the upper cavity 4021. Thus, when the electromagnetic valve is closed, the wastewater entering the upper cavity 4021 is filtered by the filtering assembly and then collected in the water collecting cavity 401. The wastewater is collected in the water collecting cavity 401 below the filtering assembly. Specifically, the conduit 150 is provided with an on-off valve 310. When it is necessary to discharge the residue in the upper cavity 4021, the on-off valve 310 is closed. At this time, the electromagnetic valve is opened, so that the residue in the upper cavity 4021 can be discharged into the lower cavity 4022. In actual operation, a residue discharge port is arranged in the sidewall of the tank body 140 corresponding to the lower cavity 4022, so as to discharge the residue in the lower cavity 4022.

[0031] In actual use, the bottom of the water collecting cavity 401 is further provided with a second circulating pump. The second circulating pump can be used to pump the wastewater in the water collecting cavity 401 into the spraying assembly 20 again for recycling, so as to improve the utilization rate of the water source.

[0032] In combination with Figure 5As shown, in the embodiment, a pull-out slot is formed on the sidewall of the groove body 140, and the filter assembly is slidably connected to the mounting table 410 through the pull-out slot; the filter assembly comprises filter pieces that are spliced together, and each filter piece comprises a filter frame 510 and a filter screen 520 arranged in the filter frame 510.

[0033] In the embodiment, the pull-out slot is provided to preferably realize the pull-out installation of the filter assembly in the groove body 140, so that when the filter assembly needs to be cleaned after long-term use, the filter assembly in the groove body 140 can be disassembled for cleaning.

[0034] Specifically, in order to ensure the sealing of the splicing and installation of the filter frame 510 in the groove body 140, a sealing strip is arranged on the outer sidewall of the filter frame 510, so that the sealing strip is pressed against the corresponding sidewall of the groove body 140 and the corresponding filter frame 510 to ensure the sealing of the installation of the filter assembly.

[0035] In actual use, the filter assembly has a large size, which makes it inconvenient to disassemble and assemble the filter assembly at the pull-out slot. In the embodiment, the filter pieces are sequentially slidably installed on the mounting table 410, so that they are sequentially abutted and spliced into the filter assembly, and the filter assembly is more convenient to disassemble and assemble.

[0036] In the embodiment, the upper and lower sidewalls of the filter frame 510 are provided with sliding grooves 511 along the length direction thereof, and the upper sidewall of the mounting table 410 and the top wall of the groove body 140 are provided with sliding blocks that are slidably arranged in the corresponding sliding grooves 511.

[0037] Specifically, the groove body 140 has an open upper end structure, and a cover plate 320 is detachably installed on the upper end of the groove body 140 by means of bolts, i.e., the sliding blocks on the top wall of the groove body 140 are arranged on the lower side of the cover plate 320. The sliding blocks and the sliding grooves 511 are cooperatively arranged to enable the filter frame 510 to be slid into or out of the pull-out slot more stably, thereby facilitating the pull-out of the filter assembly.

[0038] In the embodiment, in order to enable the spliced filter frames 510 to be sequentially and abuttedly installed on the mounting table 410, the outer sidewall of the filter frame 510 near the pull-out slot is extended outward to form an installation portion 512, and the installation portion 512 is fixed to the outer sidewall of the groove body 140 by means of bolts.

[0039] Specifically, in order to make the whole filter frame 510 spliced by the pull-out slot, in the embodiment, the side wall of the filter frame 510 is provided with a protrusion 513 and a groove, respectively, so that when the filter frame 510 is installed on the mounting table 410, the protrusion 513 on the filter frame 510 can be clamped into the groove of the adjacent filter frame 510, and the connection between the filter frames 510 can be achieved by the interference fit therebetween, so that when the filter assembly is disassembled, pulling the outermost filter frame 510 can make the whole filter assembly be pulled out of the pull-out slot, facilitating the disassembly and assembly operation.

[0040] In combination Figure 6 As shown in the figure, in the embodiment, the flushing member includes a flushing frame 610, the flushing frame 610 is uniformly provided with a flushing pipe 620, the flushing pipe 620 is provided with a spray head 621 for flushing the filter screen 520, and a first circulating pump is further arranged in the water collecting cavity 401, and the first circulating pump is used for pumping the water in the water collecting cavity 401 into the flushing pipe 620.

[0041] In the embodiment, the flushing frame 610 is fixedly installed on the cover plate 320 to achieve the suspended installation of the flushing frame 610 in the water collecting cavity 401, and through the arrangement of the first circulating pump, the flushing pipe 620 and the spray head 621, in actual use, the first circulating pump can pump the filtered waste water in the water collecting cavity 401 into the flushing pipe 620, so that the waste water in the flushing pipe 620 is sprayed by the spray head 621 to the corresponding filter screen 520, so that the filter screen 520 is backwashed, and in the process of working of the flushing member, the electromagnetic valve on the residue discharge pipe 421 is closed, at this time, the waste water backwashed into the upper cavity 4021 is filtered by the filter screen 520 and then enters the water collecting cavity 401 again, so that the waste water in the water collecting cavity 401 is recycled, thereby improving the utilization rate of water source.

[0042] In actual use, in the embodiment, the waste gas enters the lower cover body 130 through the gas inlet 131, flows through the anode pipe 210 to the upper cover body 120, and is discharged through the gas outlet 121, and when the waste gas passes through the anode pipe 210, the cathode wire applies high voltage to generate corona discharge, so that the dust particles in the waste gas are charged, and the charged dust particles move to the anode pipe 210 under the action of electric field force and deposit on the inner wall, thereby achieving the dust removal purpose, and the dust deposited on the inner wall of the anode pipe 210 is cleaned by the spraying assembly 20, so that the dust falls off and is collected together with the spraying water, and the spraying waste water enters the waste water treatment assembly through the sewage pipe, so that the spraying waste water is filtered by the filter assembly for recycling, thereby improving the utilization rate of water source.

[0043] In summary, the above only describes the preferred embodiment of the present application, and any changes and modifications made within the scope of the present application should be included in the scope of the present application.

Claims

1. A wet electrostatic precipitator comprising a precipitator housing, an electrostatic precipitation assembly (10) disposed within the precipitator housing, and a spray assembly (20) disposed above the electrostatic precipitation assembly (10), the electrostatic precipitation assembly (10) comprising a plurality of anode tubes (210) arranged in a honeycomb pattern, each anode tube (210) having a cathode wire suspended therein, characterized in that: The bottom of the dust remover shell is provided with a wastewater treatment assembly for filtering and treating the sprayed wastewater, which comprises a tank body (140), and a filtering assembly is oppositely arranged in the tank body (140). The filtering assembly is pullably arranged in the tank body (140), and a flushing member is oppositely arranged in the tank body (140) between the filtering assemblies, and the flushing member is used for back-flushing the filtering assemblies.

2. A wet electrostatic precipitator according to claim 1, wherein: Opposite installation tables (410) are arranged in the tank body (140), and the filtering assemblies are slidingly lapped on the corresponding installation tables (410). The installation tables (410) are used for dividing the tank body (140) into a water collecting cavity (401) located at the middle part and water inlet cavities (402) located at both sides. The water inlet cavities (402) are provided with partitions (420) for dividing the water inlet cavities (402) into upper cavities (4021) and lower cavities (4022).

3. A wet electrostatic precipitator according to claim 2, wherein: A pulling groove is formed in the side wall of the tank body (140), and the filtering assemblies are slidingly lapped on the installation tables (410) through the pulling groove. The filtering assemblies comprise filtering members which are spliced together, and the filtering members comprise filtering frames (510) and filter screens (520) arranged in the filtering frames (510).

4. A wet electrostatic precipitator according to claim 3, wherein: Sliding grooves (511) are formed in the upper and lower side walls of the filtering frames (510) along the length direction thereof, and the upper side wall of the installation table (410) and the top wall of the tank body (140) are provided with sliding blocks which are slidingly arranged in the corresponding sliding grooves (511).

5. A wet electrostatic precipitator according to claim 3, wherein: The outer side wall of the filtering frame (510) near the pulling groove extends outward to form an installation portion (512), and the installation portion (512) is fixed on the outer side wall of the tank body (140) by bolts, so as to realize the sliding splicing of the filtering members on the installation tables (410).

6. A wet electrostatic precipitator according to claim 3, wherein: The abutting side walls of the filtering frames (510) are respectively provided with protrusions (513) and recesses, and the protrusions (513) are clamped into the opposite recesses to realize the connection between the adjacent filtering frames (510).

7. A wet electrostatic precipitator according to claim 1, wherein: The flushing member comprises a flushing frame (610), and the flushing frame (610) is uniformly provided with flushing pipes (620). The flushing pipes (620) are provided with nozzles (621) for flushing the filter screens (520). The bottom of the water collecting cavity (401) is further provided with a first circulating pump for pumping the water in the water collecting cavity (401) into the flushing pipes (620).

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