Coal dust treatment and recovery device for thermal power plant

Abstract

The invention relates to the technical field of filtering devices, and particularly discloses a thermal power plant coal dust treatment and recovery device which comprises a filtering shell, the interior of the filtering shell is hollow, a partition plate is arranged in the filtering shell and divides an inner cavity of the filtering shell into a left part and a right part, the left part is a cleaning part, the right part is a dust filtering part, and a deformable filtering element body is arranged in the dust filtering part; the deformable filter element body receives air in the dust filtering part and carries out coal dust filtering treatment, a cleaning assembly is arranged in the cleaning part and used for cleaning the deformable filter element body, the deformable filter element body deforms after the deformable filter element body moves to the cleaning part, the deformable filter element body comprises a plurality of filter plate sheets which are obliquely arranged side by side, and the filter plate sheets are arranged in the cleaning part. After the deformable filter element body deforms, the gap between the adjacent filter plate sheets is enlarged, so that the cleaning part of the cleaning assembly can conveniently extend into the deformable filter element body for cleaning treatment, and a better cleaning effect is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of filtering devices, and in particular to a coal dust processing and recovery device for a thermal power plant. Background Art

[0002] When coal blocks or coal powder are transported in thermal power plants, the coal conveyor belt layer is the main place for material transportation and one of the main dust sources in coal-fired power plants. Coal dust pollution mainly occurs at the belt receiving port, discharge port, transfer point, and when the coal on the belt is unloaded into the coal bunker's discharge port using a plow-type discharger or a scraper-type discharger. Due to the large drop, a large amount of dust will be generated when the belt conveyor and coal are separated. At the coal bunker's discharge port, as the coal level in the bunker rises, dust-containing gas is discharged and diffused from the coal discharge port, causing large-scale pollution.

[0003] Some thermal power plants install filtering devices to remove coal dust when dust-laden gases are discharged, thereby reducing pollution.

[0004] However, after filtering and adsorbing too much coal dust, the filtering capacity of the filtering device itself decreases. When cleaning the filtering device, it is difficult for the cleaning components to penetrate deeply into the filtering device, resulting in poor cleaning effect. Summary of the invention

[0005] The present application provides a coal dust processing and recovery device for a thermal power plant, thereby solving the technical problem in the prior art that after the filter device has filtered out and adsorbed excessive coal dust, its own filtering capacity is reduced, and when the filter device is cleaned, it is difficult for the cleaning component to penetrate deeply into the interior of the filter device, resulting in poor cleaning effect. The application achieves the technical effect of allowing the cleaning component to directly penetrate into the filter gap for cleaning, thereby facilitating cleaning.

[0006] The present application provides a coal dust treatment and recovery device for a thermal power plant, comprising a filter housing, the interior of the filter housing is hollow, and the left and right parts of the inner cavity of the filter housing are respectively a cleaning part and a dust filtering part;

[0007] A deformable filter core is arranged in the dust filter section, and the deformable filter core receives air in the dust filter section and performs coal dust filtering treatment. A cleaning component is arranged in the cleaning section, and the cleaning component is used to clean the deformable filter core. After the deformable filter core moves to the cleaning section, the deformable filter core is deformed so that the cleaning component of the cleaning component can extend into the deformable filter core for cleaning treatment, thereby achieving a better cleaning effect.

[0008] Further, the deformable filter core body comprises two fixing plates, the two fixing plates are respectively arranged on two transverse inner walls of the filter housing, the fixing plates are arranged vertically and a first slide groove is arranged on the plate surface thereof, the first slide groove is arranged horizontally, a first slide seat is slidably arranged in the first slide groove, and the surface of the first slide seat is flush with the surface of the fixing plate;

[0009] The left end of the first slide groove is connected to the second slide groove, the second slide groove is connected to the first slide groove, the left section of the second slide groove extends upward to the top of the fixed plate to form a first notch, the length of the first slide groove is greater than the length of the first slide seat, and the length of the first notch is greater than the length of the first slide seat.

[0010] Furthermore, a third slide groove is also arranged on the plate surface of the fixed plate, and the third slide groove is horizontally arranged below the first slide groove, and a third slide seat is slidably arranged in the third slide groove.

[0011] Furthermore, a plurality of filter plates are arranged in parallel between the two fixed plates, the filter plates are arranged longitudinally, and filter gaps are formed between adjacent filter plates. The upper ends of the longitudinal sides of the filter plates are connected to the first slide seat through a rotating shaft, and the lower ends of the longitudinal sides of the filter plates are connected to the third slide seat through a rotating shaft.

[0012] Further, a first driving cylinder and a second driving cylinder are arranged on the right longitudinal inner wall of the filter housing, the first driving cylinder and the second driving cylinder are arranged horizontally, the cylinder body of the first driving cylinder is hinged to the inner wall of the filter housing, and the output end of the first driving cylinder is hinged to the upper right side surface of the rightmost filter plate;

[0013] The cylinder body of the second driving cylinder is fixedly connected to the inner wall of the filter housing, and the output end of the second driving cylinder is hinged to the lower part of the right side surface of the filter plate.

[0014] Furthermore, before the deformable filter core performs dust filtering, the output ends of the first driving cylinder and the second driving cylinder are contracted to move the deformable filter core into the dust filtering portion, and to tilt the filter plate, so that the distance of the filter gap becomes smaller, thereby having a dust filtering function;

[0015] When transferring the deformable filter element, the output ends of the first driving cylinder and the second driving cylinder are extended synchronously to drive the deformable filter element to move into the cleaning section. Thereafter, the output end of the first driving cylinder is extended independently to change the filter plate from inclined to vertical, so as to increase the distance of the filter gap for easier cleaning.

[0016] Furthermore, the upper and lower ends of the deformable filter core are respectively a core inlet and a core outlet, and a connecting end is provided in the dust filter portion. When the deformable filter core is located in the dust filter portion, the connecting end is opposite to the core inlet;

[0017] A docking cylinder is connected to the inner wall of the filter housing via a bracket, the output end of the docking cylinder is vertically downward, the connecting end is connected to the output end of the docking cylinder, and the connecting end is connected to the air intake pipe.

[0018] Furthermore, the upper part of the left side surface of the leftmost filter plate is connected to the left receiving plate, and the upper part of the right side surface of the rightmost filter plate is provided with a right receiving plate, the angle between the left receiving plate and the filter plate is an acute angle, the angle between the right receiving plate and the filter plate is an obtuse angle, and the left receiving plate and the right receiving plate are in the same plane.

[0019] Furthermore, when the output ends of the first driving cylinder and the second driving cylinder contract, the filter plate is in a tilted state, at which time the left receiving plate and the right receiving plate are both in a horizontal state, and the upper surfaces of the left receiving plate, the right receiving plate and the fixed plate are flush.

[0020] Furthermore, the upper surfaces of the left receiving plate, the right receiving plate and the fixed plate are provided with docking grooves, and the lower end surface of the connecting end is provided with a compression pad corresponding to the docking groove.

[0021] The technical solution provided by this application has at least the following technical effects or advantages:

[0022] The present invention filters coal dust by setting a deformable filter core, which is mainly composed of a plurality of filter plates arranged side by side, and a filter gap is formed between adjacent filter plates. After the coal dust-containing gas enters the deformable filter core, the coal dust cannot pass through the filter gap, thereby achieving filtering treatment. The angle of the filter plate can be changed. When it is in its working state, the filter plate is in an inclined state. At this time, the distance between each filter plate is small, that is, the filter gap is small, so the deformable filter core has filtering ability, and when the filter plate is in a vertical state, the distance between each filter plate is large, that is, the filter gap is large, so the cleaning component can directly penetrate into the large filter gap for cleaning treatment, so the deformable filter core is easy to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a coal dust treatment and recovery device for a thermal power plant according to an embodiment of the present application;

[0024] Figure 2It is a cross-sectional schematic diagram of a coal dust treatment and recovery device for a thermal power plant in an embodiment of the present application;

[0025] Figure 3 This is a schematic diagram of the internal structure of the filter housing in an embodiment of the present application;

[0026] Figure 4 This is a schematic diagram of the structure of the cleaning component in the embodiment of the present application;

[0027] Figure 5 This is a schematic diagram of the structure of the connecting terminal in the embodiment of the present application;

[0028] Figure 6 This is a schematic diagram of the structure of a deformable filter element in an embodiment of the present application;

[0029] Figure 7 Schematic diagram of the structure of the fixed plate in the embodiment of the present application.

[0030] In the figure: 1. filter housing; 2. deformable filter element; 3. cleaning component;

[0031] 101. Cleaning unit; 102. Dust filtering unit;

[0032] 201, fixed plate; 202, first slide; 203, first slide seat; 204, second slide; 205, first notch; 206, third slide; 207, third slide seat; 208, filter plate; 209, filter gap; 210, first drive cylinder; 211, second drive cylinder; 212, core inlet; 213, core outlet; 214, connecting end; 215, docking cylinder; 216, left receiving plate; 217, right receiving plate; 218, docking groove; 219, pressing pad;

[0033] 301. Cleaning bracket; 302. Horizontal slide; 303. Horizontal slide seat; 304. Lifting cylinder; 305. Transverse horizontal plate; 306. Rotating shaft; 307. Synchronous belt; 308. Rotating motor; 309. Cleaning rod. DETAILED DESCRIPTION

[0034] The embodiment of the present application discloses a coal dust treatment and recovery device for a thermal power plant, which filters coal dust by setting a deformable filter core 2. The deformable filter core 2 is mainly composed of a plurality of filter plates 208 arranged side by side, and there is a filter gap between adjacent filter plates 208. After the coal dust-containing gas enters the deformable filter core 2, the coal dust cannot pass through the filter gap, thereby achieving filtering treatment. The angle of the filter plate 208 can be changed. When it is in its working state, the filter plate 208 is in an inclined state. At this time, the distance between each filter plate 208 is small, that is, the filter gap is small, so the deformable filter core 2 has filtering ability, and when the filter plate 208 is in a vertical state, the distance between each filter plate 208 is large, that is, the filter gap is large, so the cleaning component can directly penetrate into the large filter gap for cleaning treatment, so the deformable filter core 2 is easy to clean.

[0035] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] Reference Figures 1 to 7 The present invention provides a coal dust processing and recovery device for a thermal power plant, comprising a filter shell 1. The filter shell 1 is hollow inside. The left and right parts of the inner cavity of the filter shell 1 are respectively a cleaning part 101 and a dust filter part 102. A deformable filter core 2 is arranged in the dust filter part 102. The deformable filter core 2 receives air in the dust filter part 102 and performs coal dust filtering treatment. After the deformable filter core 2 moves to the cleaning part 101, the deformable filter core 2 is deformed to facilitate the cleaning component to extend into the deformable filter core 2 for cleaning treatment, thereby achieving a better cleaning effect.

[0037] Specifically, the deformable filter element 2 includes two fixed plates 201, which are respectively arranged on the two lateral inner walls of the filter housing 1, the fixed plate 201 is vertically arranged and a first slide groove 202 is arranged on its plate surface, the first slide groove 202 is horizontally arranged, a first slide seat 203 is slidably arranged in the first slide groove 202, the surface of the first slide seat 203 is flush with the surface of the fixed plate 201, the left end of the first slide groove 202 is connected to the second slide groove 204, the second slide groove 204 is docked with the first slide groove 202, the left section of the second slide groove 204 extends upward to the top of the fixed plate 201 to form a first notch 205, the length of the first slide groove 202 is greater than the length of the first slide seat 203, the length of the first notch 205 is greater than the length of the first slide seat 203, and a third slide groove 206 is also arranged on the plate surface of the fixed plate 201, the third slide groove 206 is horizontally arranged below the first slide groove 202, and a third slide seat 207 is slidably arranged in the third slide groove 206.

[0038] Furthermore, a plurality of filter plates 208 are arranged in parallel between the two fixed plates 201. The filter plates 208 are arranged longitudinally, and filter gaps 209 are formed between adjacent filter plates 208. The upper ends of the longitudinal sides of the filter plates 208 are connected to the first slide 203 through a rotating shaft, and the lower ends of the longitudinal sides of the filter plates 208 are connected to the third slide 207 through a rotating shaft. A first driving cylinder 210 and a second driving cylinder 211 are arranged on the right longitudinal inner wall of the filter housing 1. The first driving cylinder 210 and the second driving cylinder 211 are arranged horizontally, and the cylinder body of the first driving cylinder 210 is hinged to the inner wall of the filter housing 1, and the output end of the first driving cylinder 210 is hinged to the upper right side surface of the rightmost filter plate 208, and the cylinder body of the second driving cylinder 211 is fixedly connected to the inner wall of the filter housing 1, and the output end of the second driving cylinder 211 is hinged to the lower right side surface of the filter plate 208.

[0039] Before the deformable filter element 2 performs dust filtering, the output ends of the first drive cylinder 210 and the second drive cylinder 211 contract to move the deformable filter element 2 into the dust filtering section 102, and to tilt the filter plate 208 so that the distance of the filter gap 209 becomes smaller, thereby achieving a dust filtering function.

[0040] When transferring the deformable filter element 2, the output ends of the first driving cylinder 210 and the second driving cylinder 211 are extended synchronously to drive the deformable filter element 2 to move into the cleaning section 101. Then, the output end of the first driving cylinder 210 is extended independently to change the filter plate 208 from inclined to vertical, so that the distance of the filter gap 209 becomes larger, which is convenient for cleaning.

[0041] The upper and lower ends of the deformable filter core 2 are the core inlet 212 and the core outlet 213 respectively. A connecting end 214 is arranged in the dust filter part 102. When the deformable filter core 2 is located in the dust filter part 102, the connecting end 214 is opposite to the core inlet 212. A docking cylinder 215 is connected to the inner wall of the filter housing 1 through a bracket. The output end of the docking cylinder 215 is vertically downward, and the connecting end 214 is connected to the output end of the docking cylinder 215. The connecting end 214 is connected to the air intake pipe. The upper left side surface of the leftmost filter plate 208 is connected to the left receiving plate 216, and the upper right side surface of the rightmost filter plate 208 is provided with a right receiving plate 217. The angle between the left receiving plate and the filter plate 208 is an acute angle, and the angle between the right receiving plate 217 and the filter plate 208 is an obtuse angle, and the left receiving plate 216 and the right receiving plate 217 are in the same plane.

[0042] When the output ends of the first driving cylinder 210 and the second driving cylinder 211 are contracted, the filter plate 208 is in a tilted state. At this time, the left receiving plate 216 and the right receiving plate 217 are both in a horizontal state, and the upper surfaces of the left receiving plate 216, the right receiving plate 217 and the fixed plate 201 are flush, thereby facilitating docking.

[0043] Furthermore, the upper surfaces of the left receiving plate 216, the right receiving plate 217 and the fixed plate 201 are provided with docking grooves 218, and the lower end surface of the connecting end 214 is provided with a compression pad 219 corresponding to the docking groove 218 to facilitate sealed docking.

[0044] Furthermore, in this embodiment, a cleaning component 3 is provided in the cleaning part 101, and the cleaning component 3 is used to clean the deformable filter core 2. After the deformable filter core 2 moves to the cleaning part 101, the deformable filter core 2 is deformed to facilitate the cleaning component of the cleaning component 3 to extend into the deformable filter core 2 for cleaning, thereby achieving a better cleaning effect.

[0045] Specifically, the cleaning component 3 includes a cleaning bracket 301, which is connected to the inner wall of the filter shell 1. The cleaning bracket 301 is longitudinally and horizontally arranged above the deformable filter element 2. A horizontal slide groove 302 is arranged on the lower surface of the cleaning bracket 301. A horizontal slide 303 and a linear motor for driving the horizontal slide 303 to move are arranged in the horizontal slide groove 302. The horizontal slide 303 is connected to a lifting cylinder 304. The output end of the lifting cylinder 304 is vertically downward and connected to a horizontal plate 305. A plurality of rotating shafts 306 are vertically penetrated on the horizontal plate 305. A synchronous belt 307 is wound around the rotating shafts 306. One of the rotating shafts 306 is connected to a rotating motor 308. The lower end of the rotating shaft 306 is connected to a cleaning rod 309. A cleaning brush is arranged on the rod body of the cleaning rod 309.

[0046] After the deformable filter core 2 moves to the cleaning part 101 and deforms, the filter plate 208 is in a vertical state, and the filter gaps 209 correspond to the cleaning rods 309 one by one. At this time, the output end of the lifting cylinder 304 extends downward, driving the cleaning rods 309 to move downward and insert into the filter gaps 209, and the cleaning brushes contact the filter plates 208 on both sides, and then the rotating motor 308 and the linear motor are activated, the rotating motor 308 drives the cleaning rods 309 to rotate, and the linear motor drives the cleaning rods 309 to move longitudinally, thereby cleaning the filter gaps 209.

[0047] The present invention filters coal dust by setting a deformable filter core 2. The deformable filter core 2 is mainly composed of a plurality of filter plates 208 arranged side by side. There is a filter gap between adjacent filter plates 208. After the coal dust-containing gas enters the deformable filter core 2, the coal dust cannot pass through the filter gap, thereby achieving filtering treatment. The angle of the filter plate 208 can be changed. When it is in its working state, the filter plate 208 is in an inclined state. At this time, the distance between each filter plate 208 is small, that is, the filter gap is small, so the deformable filter core 2 has filtering ability, and when the filter plate 208 is in a vertical state, the distance between each filter plate 208 is large, that is, the filter gap is large, so the cleaning component can directly penetrate into the large filter gap for cleaning treatment, so the deformable filter core 2 is easy to clean.

[0048] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0049] What has been described above is only a preferred specific implementation manner of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A coal dust treatment and recovery device for a thermal power plant, characterized in that: It comprises a filter housing (1), the interior of the filter housing (1) is hollow, and the left and right parts of the inner cavity of the filter housing (1) are respectively a cleaning part (101) and a dust filtering part (102); A deformable filter core (2) is arranged in the dust filter section (102), and the deformable filter core (2) receives air in the dust filter section (102) and performs coal dust filtering processing. A cleaning component (3) is arranged in the cleaning section (101), and the cleaning component (3) is used to clean the deformable filter core (2). After the deformable filter core (2) moves to the cleaning section (101), the deformable filter core (2) is deformed, so that the cleaning component of the cleaning component (3) can extend into the deformable filter core (2) to perform cleaning processing, thereby achieving a better cleaning effect.

2. A coal dust treatment and recovery device for a thermal power plant as claimed in claim 1, characterized in that: The deformable filter core (2) comprises two fixing plates (201), the two fixing plates (201) being respectively arranged on two transverse inner walls of the filter housing (1), the fixing plates (201) being arranged vertically and having a first slide groove (202) arranged on the plate surface thereof, the first slide groove (202) being arranged horizontally, a first slide seat (203) being slidably arranged in the first slide groove (202), and the surface of the first slide seat (203) being flush with the surface of the fixing plates (201); The left end of the first slide groove (202) is connected to the second slide groove (204), the second slide groove (204) is connected to the first slide groove (202), the left section of the second slide groove (204) extends upward to the top of the fixed plate (201) to form a first notch (205), the length of the first slide groove (202) is greater than the length of the first slide seat (203), and the length of the first notch (205) is greater than the length of the first slide seat (203).

3. A coal dust treatment and recovery device for a thermal power plant as claimed in claim 2, characterized in that: A third slide groove (206) is also provided on the plate surface of the fixed plate (201), and the third slide groove (206) is horizontally arranged below the first slide groove (202), and a third slide seat (207) is slidably arranged in the third slide groove (206).

4. A coal dust treatment and recovery device for a thermal power plant as claimed in claim 3, characterized in that: A plurality of filter plates (208) are arranged in parallel between the two fixed plates (201); the filter plates (208) are arranged longitudinally, and filter gaps (209) are provided between adjacent filter plates (208); the upper ends of the longitudinal sides of the filter plates (208) are connected to the first slide seat (203) via a rotating shaft, and the lower ends of the longitudinal sides of the filter plates (208) are connected to the third slide seat (207) via a rotating shaft.

5. A coal dust treatment and recovery device for a thermal power plant as claimed in claim 4, characterized in that: A first driving cylinder (210) and a second driving cylinder (211) are arranged on the right longitudinal inner wall of the filter housing (1); the first driving cylinder (210) and the second driving cylinder (211) are arranged horizontally; the cylinder body of the first driving cylinder (210) is hinged to the inner wall of the filter housing (1); and the output end of the first driving cylinder (210) is hinged to the upper right side surface of the rightmost filter plate (208); The cylinder body of the second driving cylinder (211) is fixedly connected to the inner wall of the filter housing (1), and the output end of the second driving cylinder (211) is hinged to the lower right side surface of the filter plate (208).

6. A coal dust treatment and recovery device for a thermal power plant as claimed in claim 5, characterized in that: Before the deformable filter core (2) performs dust filtering, the output ends of the first driving cylinder (210) and the second driving cylinder (211) are contracted, so that the deformable filter core (2) moves into the dust filtering portion (102), and the filter plate (208) is tilted, and the distance of the filter gap (209) becomes smaller, thereby achieving a dust filtering function; When transferring the deformable filter core (2), the output ends of the first driving cylinder (210) and the second driving cylinder (211) are extended synchronously to drive the deformable filter core (2) to move into the cleaning section (101), and then the output end of the first driving cylinder (210) is extended independently to change the filter plate (208) from inclined to vertical, so that the distance of the filter gap (209) becomes larger, which is convenient for cleaning.

7. A coal dust treatment and recovery device for a thermal power plant as claimed in claim 6, characterized in that: The upper and lower ends of the deformable filter core (2) are respectively a core inlet (212) and a core outlet (213); a connecting end (214) is provided in the dust filter portion (102); when the deformable filter core (2) is located in the dust filter portion (102), the connecting end (214) is opposite to the core inlet (212); A docking cylinder (215) is connected to the inner wall of the filter housing (1) via a bracket, the output end of the docking cylinder (215) is vertically downward, the connecting end (214) is connected to the output end of the docking cylinder (215), and the connecting end (214) is connected to an air intake pipe.

8. A coal dust treatment and recovery device for a thermal power plant as claimed in claim 7, characterized in that: The upper portion of the left side surface of the leftmost filter plate (208) is connected to the left receiving plate (216), and the upper portion of the right side surface of the rightmost filter plate (208) is provided with a right receiving plate (217). The angle between the left receiving plate and the filter plate (208) is an acute angle, and the angle between the right receiving plate (217) and the filter plate (208) is an obtuse angle, and the left receiving plate (216) and the right receiving plate (217) are in the same plane.

9. A coal dust treatment and recovery device for a thermal power plant as claimed in claim 8, characterized in that: When the output ends of the first driving cylinder (210) and the second driving cylinder (211) are contracted, the filter plate (208) is in a tilted state, at which time the left receiving plate (216) and the right receiving plate (217) are both in a horizontal state, and the upper surfaces of the left receiving plate (216), the right receiving plate (217) and the fixing plate (201) are flush.

10. A coal dust treatment and recovery device for a thermal power plant as claimed in claim 8, characterized in that: The upper surfaces of the left receiving plate (216), the right receiving plate (217) and the fixing plate (201) are provided with docking grooves (218), and the lower end surface of the connecting end (214) is provided with a pressing pad (219) corresponding to the docking groove (218).

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