Kiln tail electric bag dust collection equipment with double filtering structures

Abstract

The utility model provides kiln tail electric bag dust collection equipment with a double filtering structure, which relates to the technical field of cement production equipment, and comprises a dust collection box, four corners and two sides of the dust collection box are fixedly connected with supporting legs, an air inlet is fixedly embedded in one side of the dust collection box, an air outlet is fixedly embedded in the top of the other side of the dust collection box, and the air outlet is communicated with the dust collection box. And the interiors of the supporting legs and the exhaust outlet are communicated with the interior of the dust collection box. According to the kiln tail electric bag dust collection equipment, when the kiln tail electric bag dust collection equipment runs, the filter bags are driven by airflow to collide with one another, the filter bags are possibly damaged, the bottom ends of the filter bags can be fixed in an auxiliary mode through the design of the filter bag fixing assemblies, and the situation that the filter bags are collided and damaged due to the fact that the airflow drives the filter bags to swing is avoided; the second electric control valve is controlled to be opened through an external controller, water is sprayed out from the first nozzle and the second nozzle, the water sprayed through the dust falling assembly can conduct humidification and dust falling on drifting dust, dust drifting is reduced, and environmental pollution is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cement production equipment technology, and in particular to a kiln tail electrostatic precipitator with a dual filtration structure. Background Technology

[0002] In the cement production process, clinker comes from the kiln head and is fed from the kiln tail. The raw materials, after being preheated by the preheater, enter the rotary kiln from the kiln tail. After calcination, they come out from the kiln head and enter the grate cooler for cooling. The hot air after the clinker is cooled enters the calcination system through the tertiary air duct and the kiln body. The heat required for calcination of the kiln body is injected into the rotary kiln from the kiln head by the calcination coal injection pipe. Therefore, a large amount of dust and debris will be generated at the kiln tail. The kiln tail electrostatic precipitator is a device that separates dust from the flue gas.

[0003] However, in the existing technology, when the dust collected in the electric bag filter at the kiln tail is discharged, it is found that some electric bag filter at the kiln tail does not have dust suppression measures during dust discharge, and because the dust is relatively light, the dust will spread everywhere and pollute the environment. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a kiln tail electrostatic precipitator with a dual filtration structure, comprising: a dust collection box, wherein support legs are fixedly connected to the four corners and both sides of the bottom of the dust collection box, an air inlet is fixedly embedded on one side of the dust collection box, and an air outlet is fixedly embedded on the top of the other side of the dust collection box, the interiors of the air inlet and the air outlet are in communication with the interior of the dust collection box, and conical dust discharge ports are fixedly connected to both sides of the bottom of the dust collection box, the interiors of the two conical dust discharge ports are in communication with the interior of the dust collection box, a filter bag fixing assembly is provided inside the dust collection box, and dust suppression components are provided on the surface of the two conical dust discharge ports.

[0006] Furthermore, an electrically controlled valve is embedded at the bottom of each of the two conical dust discharge ports, a partition plate is fixedly connected to the middle of the top of the dust collection box, an electrostatic precipitator is installed on one side of the dust collection box, and multiple threaded holes are opened at the bottom of one side of the partition plate.

[0007] Furthermore, a support plate is fixedly embedded on the other side of the dust collection box cavity, and multiple mounting tubes are fixedly embedded inside the support plate. Filter bags are connected to the bottom surfaces of the multiple mounting tubes. A pulse jet cleaner is fixedly connected to one side of the dust collection box, and multiple jet pipes are connected to the output end of the pulse jet cleaner. Multiple nozzles are fixedly installed at the bottom of the multiple jet pipes, and the bottom of the multiple nozzles is located at the top of the multiple mounting tubes. Multiple threaded holes are opened on one side of the dust collection box cavity, and the surface of one end of the multiple jet pipes is fixedly embedded inside the side of the dust collection box.

[0008] Furthermore, the filter bag fixing assembly includes multiple fixing rings, and connecting plates are fixedly connected between the surfaces of the multiple fixing rings on opposite sides. Each of the multiple fixing rings at both ends is fixedly connected to one side of an L-shaped fixing plate, and bolts are movably embedded inside the multiple L-shaped fixing plates.

[0009] Furthermore, the dust suppression component includes a water inlet pipe, one end of which is fitted with an electrically controlled valve 2, and the other end of the water inlet pipe is fixedly connected to an annular pipe 1. Each of the four inner corners of the annular pipe 1 is fixedly connected to a fixing rod 1, and the bottom of the annular pipe 1 is fixedly connected to multiple nozzles 1. A diversion pipe is fixedly connected to the surface of the water inlet pipe, and the top of the diversion pipe is fixedly connected to an annular pipe 2. Each of the four inner corners of the annular pipe 2 is fixedly connected to a fixing rod 2, and the bottom of the annular pipe 2 is fixedly connected to multiple nozzles 2.

[0010] Furthermore, the surface threads of multiple bolts are embedded inside multiple threaded holes one, and the surface threads of multiple bolts are embedded inside multiple threaded holes two, and the internal moving parts of multiple fixing rings are movably sleeved on the surface of the bottom end of multiple filter bags.

[0011] Furthermore, the eight fixing rods are arranged in groups of four, with the other ends of the two groups of fixing rods fixedly connected to the four corners of the two conical dust discharge ports. The eight fixing rods are also arranged in groups of four, with the other ends of the two groups of fixing rods fixedly connected to the four corners of the two conical dust discharge ports.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, when the electric bag filter is running, the filter bags collide with each other under the influence of airflow, which may cause the filter bags to break. The design of the filter bag fixing component can help fix the bottom of the filter bag, so as to prevent the airflow from causing the filter bag to swing and collide and break.

[0014] 2. In this utility model, the electric control valve 2 is opened by an external controller, and water is sprayed out from nozzle 1 and nozzle 2. The design of the dust suppression component is to spray water that can humidify and suppress the floating dust, reduce dust dispersion, and reduce environmental pollution. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of the kiln tail electrostatic precipitator with a dual filtration structure provided by this utility model.

[0016] Figure 2 A schematic diagram of the other side of the kiln tail electrostatic precipitator with a dual filtration structure provided by this utility model;

[0017] Figure 3 A cross-sectional view of the kiln tail electrostatic precipitator with a dual filtration structure provided by this utility model.

[0018] Figure 4 A schematic diagram of the filter bag fixing assembly of the kiln tail electrostatic precipitator with a dual filtration structure provided by this utility model.

[0019] Figure 5 A schematic diagram of the dust collection component of the kiln tail electrostatic precipitator with a dual filtration structure provided by this utility model.

[0020] Figure 6 A schematic diagram of point A of the kiln tail electrostatic precipitator with a dual filtration structure provided by this utility model.

[0021] Figure 7 A schematic diagram of section B of the kiln tail electrostatic precipitator with a dual filtration structure provided by this utility model.

[0022] Legend:

[0023] 1. Dust collection box; 101. Support leg; 102. Air inlet; 103. Air outlet; 104. Conical dust discharge outlet; 105. Electrically controlled valve one; 106. Divider plate; 107. Electrostatic precipitator; 108. Support plate; 109. Mounting pipe; 110. Filter bag; 111. Pulse jet cleaner; 112. Jet pipe; 113. Nozzle; 114. Threaded hole one; 115. Threaded hole two; 2. Filter bag fixing assembly; 201. Fixing ring; 202. Connecting plate; 203. L-shaped fixing plate; 204. Bolt; 3. Dust suppression assembly; 301. Water inlet pipe; 302. Electrically controlled valve two; 303. Ring pipe one; 304. Fixing rod one; 305. Nozzle one; 306. Diverter pipe; 307. Ring pipe two; 308. Fixing rod two; 309. Nozzle two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not 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 effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-7 This utility model provides a technical solution: a kiln tail electrostatic precipitator with a dual filtration structure, comprising: a dust collection box 1, with support legs 101 fixedly connected to the four corners and both sides of the bottom of the dust collection box 1, an air inlet 102 fixedly embedded on one side of the dust collection box 1, and an air outlet 103 fixedly embedded on the top of the other side of the dust collection box 1, the interiors of the air inlet 102 and the air outlet 103 communicating with the interior of the dust collection box 1, and two conical dust discharge ports 104 fixedly connected to the bottom of the dust collection box 1, the interiors of the two conical dust discharge ports 104 communicating with the interior of the dust collection box 1, a filter bag fixing assembly 2 being provided inside the dust collection box 1, and dust suppression components 3 being provided on the surface of the two conical dust discharge ports 104.

[0026] Specifically: When the electrostatic precipitator at the kiln tail is running, the filter bags 110 collide with each other under the influence of airflow, which may cause the filter bags 110 to break. The filter bag fixing component 2 is designed to help fix the bottom of the filter bags 110, preventing the airflow from causing the filter bags 110 to swing and collide and break. The external controller controls the opening of the second electrical control valve 302, and water is sprayed from the first nozzle 305 and the second nozzle 309. The design of the dust suppression component 3 is to spray water to humidify and suppress the floating dust, reduce dust dispersion, and reduce environmental pollution.

[0027] In one embodiment, an electrically controlled valve 105 is embedded at the bottom of each of the two conical dust discharge ports 104, a partition plate 106 is fixedly connected to the middle position of the top of the dust collection box 1, an electrostatic precipitator 107 is installed on one side of the dust collection box 1, and multiple threaded holes 115 are opened at the bottom of one side of the partition plate 106.

[0028] Specifically, such as Figure 3 As shown: The electrostatic precipitator 107 is a common device that uses a high-voltage electric field to ionize the gas and generate charged particles. These particles move towards the electrodes under the action of the electric field force and are eventually captured, thereby achieving dust removal. The electrostatic precipitator 107 is equipped with a dust removal mode, that is, the electrostatic precipitator 107 is equipped with a rapping hammer, which strikes the electrodes to cause the adsorbed dust to fall off. The specific structure is not described in detail here.

[0029] In one embodiment, a support plate 108 is fixedly embedded on the other side of the inner cavity of the dust collection box 1. Multiple mounting tubes 109 are fixedly embedded inside the support plate 108. Filter bags 110 are connected to the bottom surfaces of the multiple mounting tubes 109. A pulse jet cleaner 111 is fixedly connected to one side of the dust collection box 1. Multiple jet pipes 112 are connected to the output end of the pulse jet cleaner 111. Multiple nozzles 113 are fixedly installed at the bottom of the multiple jet pipes 112. The bottom of the multiple nozzles 113 is located at the top of the multiple mounting tubes 109. Multiple threaded holes 114 are opened on one side of the inner cavity of the dust collection box 1. The surface of one end of the multiple jet pipes 112 is fixedly embedded inside the side of the dust collection box 1.

[0030] Specifically, such as Figure 3 As shown: The pulse jet cleaner 111 is a common device that uses compressed air to instantly blow the filter bag, causing the dust to fall off. The specific structure will not be described here.

[0031] In one embodiment, the filter bag fixing assembly 2 includes a plurality of fixing rings 201, and connecting plates 202 are fixedly connected between the surfaces of the plurality of fixing rings 201 on opposite sides. An L-shaped fixing plate 203 is fixedly connected to one side of the plurality of fixing rings 201 at both ends, and bolts 204 are movably embedded inside the plurality of L-shaped fixing plates 203.

[0032] Specifically, such as Figure 4 As shown: When the electrostatic precipitator at the kiln tail is running, the filter bags 110 collide with each other under the influence of the airflow, which may cause the filter bags 110 to break. The filter bag fixing component 2 is designed to fix the bottom of the filter bags 110 to prevent the airflow from causing the filter bags 110 to swing and collide and break.

[0033] In one embodiment, the dust suppression component 3 includes a water inlet pipe 301. One end of the water inlet pipe 301 is fitted with an electrically controlled valve 302. The other end of the water inlet pipe 301 is fixedly connected to an annular pipe 303. The four corners of the inner side of the annular pipe 303 are fixedly connected with fixing rods 304. The bottom of the annular pipe 303 is fixedly connected with a plurality of nozzles 305. The surface of the water inlet pipe 301 is fixedly connected with a diversion pipe 306. The top of the diversion pipe 306 is fixedly connected with an annular pipe 307. The four corners of the inner side of the annular pipe 307 are fixedly connected with fixing rods 308. The bottom of the annular pipe 307 is fixedly connected with a plurality of nozzles 309.

[0034] Specifically, such as Figure 5 As shown: The electric control valve 302 is opened by the external controller, and water is sprayed out from nozzle 305 and nozzle 309. The dust suppression component 3 is designed to spray water to humidify and suppress the floating dust, reduce dust dispersion, and reduce environmental pollution.

[0035] In one embodiment, the surface threads of a plurality of bolts 204 are embedded inside a plurality of threaded holes 114, and the surface threads of another plurality of bolts 204 are embedded inside a plurality of threaded holes 115, and the internal threads of a plurality of retaining rings 201 are movably fitted onto the surface of the bottom end of a plurality of filter bags 110.

[0036] Specifically, such as Figure 6-7 As shown: The filter bag fixing assembly 2 is installed inside the dust collection box 1 on one side and on one side of the partition plate 106 by bolts 204.

[0037] In one embodiment, the eight fixing rods 304 are grouped into four groups, and the other ends of the two groups of fixing rods 304 are fixedly connected to the four corners of the surface of the two conical dust discharge ports 104. The eight fixing rods 308 are grouped into four groups, and the other ends of the two groups of fixing rods 308 are fixedly connected to the four corners of the surface of the two conical dust discharge ports 104.

[0038] Specifically, such as Figure 2 As shown: The dust suppression component 3 is fixed to the surface of the conical dust discharge port 104 by fixing rod 1 304 and fixing rod 2 308, which provides support for the dust suppression component 3.

[0039] Working principle: Connect the air inlet 102 of this kiln tail electrostatic precipitator to the kiln tail exhaust pipe, and connect the exhaust outlet 103 to the dust removal system. Connect one end of the water inlet pipe 301 to the water supply pipe and connect this kiln tail electrostatic precipitator to the external power supply equipment. The external power supply equipment is electrically connected to the dust removal system, electrically controlled valve 105, electrostatic precipitator 107, pulse jet cleaner 111, and electrically controlled valve 202 and provides power. The external controller is electrically connected to and correlated with the dust removal system, electrically controlled valve 105, electrostatic precipitator 107, pulse jet cleaner 111, and electrically controlled valve 202 for control.

[0040] During dust collection, the dust removal system and electrostatic precipitator 107 are started by an external controller. The external main fan of the dust removal system starts to provide airflow power. The dust discharged from the kiln tail is drawn into this kiln tail electrostatic bag dust collection device through the air inlet 102. After being adsorbed and filtered by the electrostatic precipitator 107 and filter bag 110, the dust is discharged from the air outlet 103. This design gives the kiln tail electrostatic bag dust collection device a dual filtration structure, which makes the filtration of dust discharged from the kiln tail more thorough.

[0041] When the electrostatic precipitator at the kiln tail is running, the filter bags 110 are relatively long and arranged in close proximity to improve the filtration effect. As a result, the filter bags 110 may collide with each other under the influence of airflow, which may cause the filter bags 110 to break. The filter bag fixing component 2 is designed to help fix the bottom of the filter bags 110, so as to prevent the airflow from causing the filter bags 110 to swing and collide and break.

[0042] During dust removal, the external controller controls the opening of the second electrical control valve 302, and water enters through the water inlet pipe 301 and is sprayed downwards from multiple nozzles 305 and 309. Then, the external controller controls the opening of the first electrical control valve 105 and starts the dust removal mode of the pulse jet cleaner 111 and the electrostatic precipitator 107. The collected dust falls out from the bottom of the conical dust discharge port 104. Since the dust is light, it will spread everywhere and pollute the environment. The dust suppression component 3 is designed to spray water to humidify and suppress the scattered dust, reduce dust dispersion, and reduce environmental pollution.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A kiln tail electrostatic precipitator with a dual filtration structure, characterized in that, include: A dust collection box (1) is provided with support legs (101) fixedly connected to the four corners and both sides of the bottom of the dust collection box (1). An air inlet (102) is fixedly embedded on one side of the dust collection box (1), and an air outlet (103) is fixedly embedded on the top of the other side of the dust collection box (1). The interior of the air inlet (102) and the air outlet (103) are connected to the interior of the dust collection box (1). Conical dust discharge ports (104) are fixedly connected to both sides of the bottom of the dust collection box (1). The interior of the two conical dust discharge ports (104) is connected to the interior of the dust collection box (1). A filter bag fixing assembly (2) is provided inside the dust collection box (1), and a dust suppression assembly (3) is provided on the surface of the two conical dust discharge ports (104).

2. The kiln tail electrostatic precipitator with a dual filtration structure according to claim 1, characterized in that: An electrically controlled valve (105) is embedded at the bottom of each of the two conical dust discharge ports (104). A partition plate (106) is fixedly connected to the middle of the top of the dust collection box (1). An electrostatic precipitator (107) is installed on one side of the dust collection box (1). Multiple threaded holes (115) are opened at the bottom of one side of the partition plate (106).

3. The kiln tail electrostatic precipitator with a dual filtration structure according to claim 1, characterized in that: A support plate (108) is fixedly embedded on the other side of the inner cavity of the dust collection box (1). Multiple mounting tubes (109) are fixedly embedded inside the support plate (108). Filter bags (110) are connected to the bottom surfaces of the multiple mounting tubes (109). A pulse jet cleaner (111) is fixedly connected to one side of the dust collection box (1). Multiple jet pipes (112) are connected to the output end of the pulse jet cleaner (111). Multiple nozzles (113) are fixedly installed at the bottom of the multiple jet pipes (112). The bottom of the multiple nozzles (113) is located at the top of the multiple mounting tubes (109). Multiple threaded holes (114) are opened on one side of the inner cavity of the dust collection box (1). The surface of one end of the multiple jet pipes (112) is fixedly embedded inside one side of the dust collection box (1).

4. The kiln tail electrostatic precipitator with a dual filtration structure according to claim 1, characterized in that: The filter bag fixing assembly (2) includes multiple fixing rings (201), and connecting plates (202) are fixedly connected between the surfaces of the multiple fixing rings (201) on opposite sides. An L-shaped fixing plate (203) is fixedly connected to one side of the multiple fixing rings (201) at both ends, and bolts (204) are movably embedded inside the multiple L-shaped fixing plates (203).

5. The kiln tail electrostatic precipitator with a dual filtration structure according to claim 1, characterized in that: The dust suppression component (3) includes a water inlet pipe (301), one end of which is fitted with an electrically controlled valve (302), and the other end of which is fixedly connected to an annular pipe (303). The four corners of the inner side of the annular pipe (303) are fixedly connected to a fixing rod (304). The bottom of the annular pipe (303) is fixedly connected to a plurality of nozzles (305). The surface of the water inlet pipe (301) is fixedly connected to a diversion pipe (306). The top of the diversion pipe (306) is fixedly connected to an annular pipe (307). The four corners of the inner side of the annular pipe (307) are fixedly connected to a fixing rod (308). The bottom of the annular pipe (307) is fixedly connected to a plurality of nozzles (309).

6. The kiln tail electrostatic precipitator with a dual filtration structure according to claim 4, characterized in that: The surface threads of multiple bolts (204) are embedded in multiple threaded holes (114), and the surface threads of multiple bolts (204) are embedded in multiple threaded holes (115). The internal threads of multiple fixing rings (201) are movably sleeved on the surface of the bottom end of multiple filter bags (110).

7. The kiln tail electrostatic precipitator with a dual filtration structure according to claim 5, characterized in that: The eight fixing rods (304) are arranged in groups of four, and the other ends of the two groups of fixing rods (304) are fixedly connected to the four corners of the surface of the two conical dust discharge ports (104). The eight fixing rods (308) are arranged in groups of four, and the other ends of the two groups of fixing rods (308) are fixedly connected to the four corners of the surface of the two conical dust discharge ports (104).

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