Coal dust treatment and recovery device for thermal power plant

Abstract

The application relates to the technical field of filtering devices, and particularly discloses a coal dust treatment and recovery device for thermal power plants, which comprises a filtering shell, the inside of the filtering shell is hollow, a partition plate is arranged in the filtering shell to divide the inner cavity of the filtering shell into two parts, a left part is a cleaning part, and a right part is a dust filtering part, a deformable filter core is arranged in the dust filtering part, the deformable filter core receives air and removes coal dust in the dust filtering part, a cleaning assembly is arranged in the cleaning part, the cleaning assembly is used for cleaning the deformable filter core, after the deformable filter core moves to the cleaning part, the deformable filter core is deformed, the deformable filter core comprises a plurality of filtering plates which are arranged side by side and obliquely, after the deformable filter core is deformed, the gaps between the adjacent filtering plates become larger, the cleaning parts of the cleaning assembly can be conveniently inserted into the deformable filter core to perform cleaning treatment, and thus a better cleaning effect is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of filtering devices, in particular to a coal dust treatment and recovery device for thermal power plants. BACKGROUND

[0002] When coal blocks or coal powder are transported, the coal conveying belt layer is the main place for material conveying and is one of the main dust source points of the coal-fired power plant. Coal dust pollution mainly occurs at the belt receiving port, the belt discharging port, the transfer point and the falling port of the coal bin when the coal on the belt is unloaded into the coal bin by the plow-type unloading device or the scraper-type unloading device. A large amount of dust is generated when the belt conveyor separates from the coal due to the large drop. As the coal level in the coal bin rises, the dust-containing gas is discharged and diffused from the coal falling port, causing large-area pollution.

[0003] A part of the thermal power plants filter out the coal dust by setting a filtering device when the dust-containing gas is discharged, so as to reduce pollution.

[0004] However, after the filtering device filters and adsorbs too much coal dust, the filtering capacity of the filtering device itself decreases. When the filtering device is cleaned, the cleaning component cannot easily enter the interior of the filtering device, resulting in poor cleaning effect. SUMMARY

[0005] The application provides a coal dust treatment and recovery device for a thermal power plant, which solves the technical problem that the filtering capacity of the filtering device itself decreases after the filtering device filters and adsorbs too much coal dust, and the cleaning component cannot easily enter the interior of the filtering device when the filtering device is cleaned, resulting in poor cleaning effect. The cleaning component directly enters the large gap for cleaning, so that the technical effect of convenient cleaning is achieved.

[0006] The application provides a coal dust treatment and recovery device for a thermal power plant, which includes a filtering shell, the inside of the filtering shell is hollow, and the left and right two parts of the inner cavity of the filtering shell are a cleaning part and a dust filtering part respectively.

[0007] A deformable filter core is arranged in the dust filtering part, the deformable filter core receives air and filters coal dust in the dust filtering part, a cleaning assembly is arranged in the cleaning part, the cleaning assembly is used for cleaning the deformable filter core, after the deformable filter core moves to the cleaning part, the deformable filter core deforms, so that the cleaning component of the cleaning assembly extends into the deformable filter core for cleaning, thereby achieving better cleaning effect.

[0008] Further, the deformable filter core comprises two fixed plates, the two fixed plates are respectively arranged on the two lateral inner walls of the filter shell, the fixed plates are vertically arranged and a first sliding groove is arranged on the surface of the fixed plates, the first sliding groove is horizontally arranged, a first sliding seat is slidingly arranged in the first sliding groove, and the surface of the first sliding seat is flush with the surface of the fixed plate.

[0009] The left end of the first sliding groove is connected with a second sliding groove, the second sliding groove is butt-jointed with the first sliding groove, the left segment of the second sliding groove extends upward to the top of the fixed plate to form a first notch, the length of the first sliding groove is greater than the length of the first sliding seat, and the length of the first notch is greater than the length of the first sliding seat.

[0010] Further, a third sliding groove is further arranged on the surface of the fixed plate, the third sliding groove is horizontally arranged below the first sliding groove, and a third sliding seat is slidingly arranged in the third sliding groove.

[0011] Further, a plurality of filter plates are parallelly arranged between the two fixed plates, the filter plates are longitudinally arranged, filter gaps are arranged between adjacent filter plates, the upper end of the longitudinal side surface of the filter plate is connected with the first sliding seat through a rotating shaft, and the lower end of the longitudinal side surface of the filter plate is connected with the third sliding seat through a rotating shaft.

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

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

[0014] Further, before the deformable filter core performs the dust filtering work, the output ends of the first driving air cylinder and the second driving air cylinder are retracted, so that the deformable filter core moves into the dust filtering part, and the filter plates are inclined, and the distance of the filter gaps is reduced, thereby having the dust filtering function.

[0015] When the deformable filter core is transferred, the output ends of the first driving air cylinder and the second driving air cylinder are synchronously extended to drive the deformable filter core to move into the cleaning part, and then the output end of the first driving air cylinder is independently extended, so that the filter plates change from being inclined to being vertical, and the distance of the filter gaps is increased, thereby facilitating the cleaning treatment.

[0016] Further, the upper and lower ends of the deformable filter core are a core inlet and a core outlet respectively, and a connecting end head is arranged in the dust filtering part, and the connecting end head is opposite to the core inlet when the deformable filter core is located in the dust filtering part;

[0017] The inner wall of the filter shell is connected with a docking air cylinder through a support, the output end of the docking air cylinder is vertically downward, the connecting end head is connected with the output end of the docking air cylinder, and the connecting end head is connected with the air inlet pipeline.

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

[0019] Further, when the output ends of the first driving air cylinder and the second driving air cylinder are retracted, the filter sheet is in an inclined state, at this time, the left side receiving plate and the right side receiving plate are both in a horizontal state, and the upper surfaces of the left side receiving plate, the right side receiving plate and the fixed plate are flush.

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

[0021] The technical scheme provided in the application has at least the following technical effects or advantages:

[0022] The deformable filter core is arranged to filter coal dust, and the deformable filter core is mainly composed of a plurality of filter sheets arranged side by side, and filter gaps are formed between adjacent filter sheets. After the coal dust-containing gas enters the deformable filter core, the coal dust cannot pass through the filter gaps, so that the filtering treatment is realized. The angle of the filter sheet can be changed. In the working state, the filter sheet is in an inclined state, at this time, the distance between each filter sheet is small, that is, the filter gap is small, so the deformable filter core has filtering capacity. When the filter sheet is in a vertical state, the distance between each filter sheet is large, that is, the filter gap is large, so the cleaning part can directly enter the large filter gap for cleaning treatment, and the deformable filter core is convenient to clean. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic view of the coal dust treatment and recovery device of the power plant of the embodiment of the application;

[0024] Figure 2It is a sectional view of the coal dust treatment and recovery device for thermal power plant in the embodiment of the present application.

[0025] Figure 3 It is a schematic diagram of the internal structure of the filter housing in the embodiment of the present application.

[0026] Figure 4 It is a structural schematic diagram of the cleaning assembly in the embodiment of the present application.

[0027] Figure 5 It is a structural schematic diagram of the connecting end in the embodiment of the present application.

[0028] Figure 6 It is a structural schematic diagram of the deformable filter core in the embodiment of the present application.

[0029] Figure 7 It is a structural schematic diagram of the fixed plate in the embodiment of the present application.

[0030] In the figure: 1, filter housing; 2, deformable filter core; 3, cleaning assembly.

[0031] 101, cleaning part; 102, dust filtering part.

[0032] 201, fixed plate; 202, first sliding groove; 203, first sliding seat; 204, second sliding groove; 205, first notch; 206, third sliding groove; 207, third sliding seat; 208, filter plate; 209, filter gap; 210, first driving air cylinder; 211, second driving air cylinder; 212, core inlet; 213, core outlet; 214, connecting end; 215, butt joint air cylinder; 216, left side receiving plate; 217, right side receiving plate; 218, butt joint groove; 219, compression pad.

[0033] 301, cleaning support; 302, horizontal sliding groove; 303, horizontal sliding seat; 304, lifting air cylinder; 305, transverse horizontal plate; 306, rotating shaft; 307, synchronous belt; 308, rotating motor; 309, cleaning rod. DETAILED DESCRIPTION

[0034] The embodiment of the application discloses a coal dust treatment and recovery device for thermal power plants, which filters coal dust through a deformable filter core 2. The deformable filter core 2 is mainly composed of a plurality of filter plates 208 arranged side by side. Adjacent filter plates 208 are connected by filter gaps. After the coal dust-containing gas enters the deformable filter core 2, the coal dust cannot pass through the filter gaps, thereby achieving filtration treatment. The angle of the filter plates 208 can be changed. In the working state, the filter plates 208 are in an inclined state, and the distance between each filter plate 208 is small, that is, the filter gap is small, so the deformable filter core 2 has filtering capacity. When the filter plates 208 are 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 enter the large filter gap for cleaning treatment, and the deformable filter core 2 is convenient to clean.

[0035] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and specific embodiments.

[0036] Reference Figures 1 to 7 The coal dust treatment and recovery device for thermal power plants provided by the application comprises a filter shell 1, the inside of the filter shell 1 is hollow, the left and right two parts of the inner cavity of the filter shell 1 are respectively a cleaning part 101 and a dust filtering part 102, the deformable filter core 2 is arranged in the dust filtering part 102, the deformable filter core 2 receives air and removes coal dust in the dust filtering part 102, after the deformable filter core 2 moves to the cleaning part 101, the deformable filter core 2 deforms, so that the cleaning component can extend into the deformable filter core 2 for cleaning treatment, thereby achieving better cleaning effect.

[0037] Specifically, the deformable filter core 2 comprises two fixed plates 201, the two fixed plates 201 are arranged on the two transverse inner walls of the filter shell 1, the fixed plate 201 is vertically arranged and a first sliding groove 202 is arranged on the surface of the fixed plate 201, the first sliding groove 202 is horizontally arranged, a first sliding seat 203 is slidingly arranged in the first sliding groove 202, the surface of the first sliding seat 203 is flush with the surface of the fixed plate 201, the left end of the first sliding groove 202 is connected with a second sliding groove 204, the second sliding groove 204 is butt-jointed with the first sliding groove 202, the left segment of the second sliding groove 204 extends upward to the top of the fixed plate 201 to form a first gap 205, the length of the first sliding groove 202 is greater than the length of the first sliding seat 203, the length of the first gap 205 is greater than the length of the first sliding seat 203, and a third sliding groove 206 is further arranged on the surface of the fixed plate 201, the third sliding groove 206 is horizontally arranged below the first sliding groove 202, and a third sliding seat 207 is slidingly arranged in the third sliding groove 206.

[0038] Further, 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 arranged between adjacent filter plates 208, the upper ends of the longitudinal sides of the filter plates 208 are connected to the first sliding seat 203 through rotating shafts, the lower ends of the longitudinal sides of the filter plates 208 are connected to the third sliding seat 207 through rotating shafts, the right longitudinal inner wall of the filter housing 1 is provided with a first driving cylinder 210 and a second driving cylinder 211, 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, the output end of the first driving cylinder 210 is hinged to the upper part of the right side 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 part of the right side of the filter plate 208.

[0039] Before the deformable filter core 2 performs the dust filtering work, the output ends of the first driving cylinder 210 and the second driving cylinder 211 are retracted, so that the deformable filter core 2 moves into the dust filtering part 102, and the filter plates 208 are inclined, and the distance between the filter gaps 209 is reduced, thereby having the dust filtering function.

[0040] When the deformable filter core 2 is transferred, the output ends of the first driving cylinder 210 and the second driving cylinder 211 are synchronously extended, so as to drive the deformable filter core 2 to move into the cleaning part 101, and then the output end of the first driving cylinder 210 is independently extended, so that the filter plates 208 change from being inclined to being vertical, so that the distance between the filter gaps 209 is increased, thereby facilitating the cleaning process.

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

[0042] When the output ends of the first driving cylinder 210 and the second driving cylinder 211 are retracted, the filter plate 208 is in an inclined 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 the butt joint.

[0043] Further, the upper surfaces of the left receiving plate 216, the right receiving plate 217 and the fixed plate 201 are provided with butt joints 218, and the lower end surface of the connecting end head 214 is provided with a compression pad 219 corresponding to the butt joint 218, so as to seal the butt joint.

[0044] Further, the cleaning assembly 3 is arranged in the cleaning part 101, and the cleaning assembly 3 is used for cleaning the deformable filter core 2. After the deformable filter core 2 moves to the cleaning part 101, the deformable filter core 2 is deformed, so that the cleaning components of the cleaning assembly 3 extend into the deformable filter core 2 to perform cleaning treatment, thereby achieving a better cleaning effect.

[0045] Specifically, the cleaning assembly 3 includes a cleaning support 301 connected with the inner wall of the filter shell 1, and the cleaning support 301 is longitudinally and horizontally arranged above the deformable filter core 2. The lower surface of the cleaning support 301 is provided with a horizontal sliding groove 302, and the horizontal sliding groove 302 is provided with a horizontal sliding seat 303 and a linear motor for driving the horizontal sliding seat 303 to move. The horizontal sliding seat 303 is connected with a lifting cylinder 304, the output end of the lifting cylinder 304 is vertically downward and is connected with a transverse horizontal plate 305, a plurality of rotating shafts 306 are vertically arranged on the transverse horizontal plate 305, a synchronous belt 307 is arranged around the rotating shafts 306, one of the rotating shafts 306 is connected with a rotating motor 308, and the lower end of the rotating shaft 306 is connected with a cleaning rod 309, and the rod body of the cleaning rod 309 is provided with a cleaning brush.

[0046] After the deformable filter core 2 moves to the cleaning part 101 and is deformed, the filter plate 208 is in a vertical state, and the filter gap 209 corresponds to the cleaning rod 309 one by one. At this time, the output end of the lifting cylinder 304 is extended downward, the cleaning rod 309 is inserted into the filter gap 209, the cleaning brush contacts the filter plate 208 on both sides, and then the rotating motor 308 and the linear motor act, the rotating motor 308 drives the cleaning rod 309 to rotate, and the linear motor drives the cleaning rod 309 to move longitudinally, thereby cleaning the filter gap 209.

[0047] The application filters coal dust by setting the deformable filter core 2, which is mainly composed of a plurality of filter plates 208 arranged side by side, and the 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 realizing the filtering treatment. The angle of the filter plate 208 can be changed. In its working state, the filter plate 208 is in an inclined state, at which 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 capacity. 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 enter the large filter gap for cleaning treatment, so the deformable filter core 2 is convenient to clean.

[0048] Obviously, various modifications and changes can be made to the present application by those skilled in the art without departing from the spirit and scope of the present application. Thus, it is intended that the present application cover the modifications and changes as falling within the scope of the claims and their equivalents.

[0049] The above is only a preferred specific implementation of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacements or changes to the technical range disclosed in the present application according to the technical scheme and concept of the present application, which should be covered within 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 provided in the dust filter portion (102), and a cleaning component (3) is provided in the cleaning portion (101); The deformable filter core (2) comprises two fixed plates (201), a plurality of filter plates (208) are arranged in parallel between the two fixed plates (201), 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 part of the right side of the filter plate (208).

2. A coal dust treatment and recovery device for a thermal power plant according to claim 1, characterized in that: The two fixing plates (201) are respectively arranged on two transverse inner walls of the filter housing (1); the fixing plates (201) are arranged vertically and a first slide groove (202) is arranged on the plate surface; the first slide groove (202) is arranged horizontally; a first slide seat (203) is slidably arranged in the first slide groove (202); and the surface of the first slide seat (203) is flush with the surface of the fixing 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), 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 according to claim 2, characterized in that: A third slide groove (206) is further provided on the plate surface of the fixed plate (201), and the third slide groove (206) is horizontally provided below the first slide groove (202), and a third slide seat (207) is slidably provided 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: The filter plates (208) are arranged longitudinally, and filter gaps (209) are formed between adjacent filter plates (208). The upper ends of the longitudinal side surfaces of the filter plates (208) are connected to the first slide (203) via a rotating shaft, and the lower ends of the longitudinal side surfaces of the filter plates (208) are connected to the third slide (207) via a rotating shaft.

5. The coal dust processing and recovery device for a thermal power plant according to claim 4, 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 the air intake pipe.

6. The coal dust processing and recovery device for a thermal power plant according to claim 5, 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.

7. The coal dust processing and recovery device for a thermal power plant according to claim 6, 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.

8. A coal dust processing and recovery device for a thermal power plant according to any one of claims 6 and 7, characterized in that: 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 pressing pad (219) corresponding to the docking grooves (218).

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