Boiler slag removal equipment

Abstract

The utility model relates to boiler slag removal equipment. The equipment comprises a main body; the spiral cutter is rotationally arranged in the main body; the one or more bottom openings are formed in the bottom of the main body; the filter screen plate structure is arranged in the main body and located below the spiral cutter, the middle of the filter screen plate structure protrudes upwards, and the filter screen plate structure comprises an outer frame, an inner frame and a filter screen, the mesh enclosure is arranged in the outer frame and used for filtering, and the middle of the mesh enclosure protrudes upwards; the fixing piece is used for fixing the outer frame; and the reinforcing assembly is used for supporting and reinforcing the mesh enclosure.

Description

Technical Field

[0001] The utility model belongs to the technical field of boiler slag removal, and particularly relates to a boiler slag removal device, especially a boiler slag removal device for thermal power plants. Background Art

[0002] The statements in this part are only to provide background information related to the technical solution of the present application for the purpose of helping understanding, and they do not necessarily constitute the prior art for the technical solution of the present application.

[0003] A large amount of coal slag is discharged from the boilers of thermal power plants. It is difficult to transport the coal slag without pulverization, and it is also inconvenient to clean it. Therefore, it is usually necessary to first pulverize the coal slag into powder, which is convenient for cleaning. A filter screen plate can be arranged at the lower part of the coal slag pulverizing device to block and filter the inadequately pulverized coal slag, and the coal slag can be taken out for secondary pulverization after that.

[0004] However, when the filter screen plate blocks the inadequately pulverized coal slag, these coal slags will be distributed on the filter screen plate for a long time, thus affecting the filtering effect of the filter screen plate. Therefore, it is necessary to regularly clean the coal slag on the filter screen plate through an electric push rod to restore the filtering ability of the filter screen plate. However, during the interval between cleaning the filter screen plate, the coal slag will still be distributed on the filter screen plate, blocking the filter screen plate, resulting in the ash powder not being easy to fall down and affecting the filtering effect.

[0005] Therefore, it is necessary to design a new slag removal device to solve this problem. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a boiler slag removal device to solve the problem that the coal slag is easy to block the filter screen plate when the device pulverizes the coal slag, resulting in the ash not being easy to fall down and affecting the filtering effect.

[0007] One aspect of the utility model relates to a boiler slag removal device, including: a main body; a spiral cutter rotatably arranged inside the main body; one or more bottom openings arranged at the bottom of the main body; a filter screen plate structure arranged inside the main body and below the spiral cutter, the middle part of the filter screen plate structure bulges upward, and the filter screen plate structure includes: an outer frame; a mesh cover arranged inside the outer frame for filtering, the middle part of the mesh cover bulges upward; a fixing member for fixing the outer frame; and a reinforcement component for supporting and strengthening the mesh cover.

[0008] In one embodiment, the outer frame is a rectangular frame structure with the middle part bulging upward; the fixing member is arranged at the bottom ends of the outer frame; and the reinforcement component is arranged inside the outer frame.

[0009] In one embodiment, the reinforcement component includes a reinforcing rib and a support rib. The middle part of the reinforcing rib bulges upward, and the support rib is fixedly connected to both sides of the bottom of the reinforcing rib. The reinforcing rib and the support rib form an "A"-shaped structure.

[0010] In one embodiment, the boiler slag removal device further includes: one or more flushing nozzles located above the filter plate structure.

[0011] In one embodiment, the boiler slag removal device further includes: one or more side ports located near the bottom of the filter plate structure.

[0012] In one embodiment, the boiler slag removal device further includes: a buffer support component arranged between the fixing member and the main body.

[0013] In one embodiment, the buffer support component includes a support side block, an installation groove, a guiding and limiting rod, a spring and a rubber pad. The support side blocks are symmetrically fixed on both sides of the main body. The installation groove is opened inside the support side block, and the fixing member extends into the inside of the installation groove.

[0014] In one embodiment, the guiding and limiting rod is fixedly connected between the upper and lower inner walls of the installation groove and is slidably connected through a guiding hole opened on the fixing member.

[0015] In one embodiment, the spring is sleeved outside the guiding and limiting rod and is abutted between the bottom surface of the fixing member and the lower inner wall of the installation groove.

[0016] In one embodiment, the rubber pad is fixed on the upper and lower inner walls of the installation groove, and the upper surface of the fixing member is in contact with the upper rubber pad.

[0017] The beneficial effects that can be obtained by one or more embodiments of the present application include: Through the designed filter plate structure, it is possible to filter the incompletely pulverized coal slag. And because the middle part of the filter plate structure bulges upward, when the coal slag falls on the filter plate structure, it will automatically roll to both sides and gather at the bottom of the filter plate structure. The completely pulverized coal ash will smoothly pass through the filter plate structure and will not be blocked by the coal slag. This design can ensure the smooth falling of the coal ash throughout the process, which is beneficial to the normal operation of the slag removal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the embodiments of the present invention with reference to the accompanying drawings, where:

[0019] Figure 1 shows a schematic structural diagram of a boiler slag removal device according to one embodiment;

[0020] Figure 2Shows a perspective view of a filter plate structure according to an embodiment;

[0021] Figure 3 Shows a schematic structural view of a reinforcement component according to an embodiment;

[0022] Figure 4 Shows a partially enlarged view of a buffer support component according to an embodiment;

[0023] In the figure: 100 - main body; 200 - spiral knife; 300 - filter plate structure; 301 - outer frame; 302 - mesh cover; 303 - fixing member; 304 - reinforcement component; 3041 - reinforcing rib; 3042 - support rib; 400 - buffer support component; 401 - support side block; 402 - mounting groove; 403 - guiding and limiting rod; 404 - guiding hole; 405 - spring; 406 - rubber pad; 500 - side opening; 600 - movable door; 700 - bottom opening; 800 - flushing nozzle. Detailed implementation manners

[0024] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below through specific embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] Figure 1 Shows a schematic structural view of a boiler slag removal device according to an embodiment. The boiler slag removal device includes a main body 100 and a spiral knife 200, and the spiral knife 200 is rotatably arranged inside the main body 100. The spiral knife 200 can be driven by a motor, for example, and can crush coal slag when rotating. A filter plate structure 300 is arranged below the spiral knife 200 inside the main body 100, and the filter plate structure 300 is used to block the coal slag that has not been completely crushed. The middle part of the filter plate structure 300 bulges upward. After the coal slag falls onto the filter plate structure 300, it will automatically roll towards the edge, avoiding being distributed on the filter plate structure 300 and causing blockage, which affects the filtering effect. One or more bottom openings 700 can be arranged at the bottom of the main body 100. The completely crushed coal ash will fall to the bottom of the main body 100 through the filter plate structure 300, and the coal ash can be taken out from the bottom openings 700.

[0026] In one embodiment, the Figure 1 shown boiler slag removal device can be used as a boiler slag removal device in a thermal power plant.

[0027] In one embodiment, the filter plate structure 300 includes an outer frame, a mesh cover, a fixing member, and a reinforcement assembly. Among them, the mesh cover is disposed inside the outer frame for filtering, and the middle part of the mesh cover bulges upward; the fixing member is used to fix the outer frame, for example, to fix the outer frame to the main body 100; the reinforcement assembly is used to support and reinforce the mesh cover.

[0028] In one embodiment, the boiler slag removal device further includes one or more flushing nozzles 800 located above the filter plate structure 300. The inner end of the flushing nozzle 800 faces the filter plate structure 300, and the outer end can be externally connected to a water pipe for flushing the filter plate structure 300.

[0029] In one embodiment, one or more side openings 500 can be opened near the bottom of the filter plate structure 300. The fallen coal slag will accumulate near the side openings 500, and personnel can regularly take out the coal slag through the side openings 500 for secondary crushing. In one embodiment, the side openings 500 can be symmetrically opened at both ends of the filter plate structure 300 at the bottom on both sides of the main body 100. In one embodiment, a movable door 600 can be rotatably disposed outside the side opening 500.

[0030] Figure 2 The perspective view of the filter plate structure according to one embodiment is shown. The filter plate structure 300 includes an outer frame 301, a mesh cover 302, a fixing member 303, and a reinforcement assembly 304. The outer frame 301 is a rectangular frame structure with a middle part bulging upward, serving as the basic skeleton of the filter plate structure 300. The mesh cover 302 is disposed inside the outer frame 301 for filtering the coal slag. The fixing member 303 can be a fixing plate and can be disposed at the bottom of both ends of the outer frame 301. The reinforcement assembly 304 is disposed inside the outer frame 301 for supporting and reinforcing the mesh cover 302.

[0031] In one embodiment, according to actual needs, the filter plate structure or its outer frame can be other shapes besides rectangular, such as circular, oval, or other irregular shapes.

[0032] Figure 3 The structural schematic diagram of the reinforcement assembly according to one embodiment is shown. The reinforcement assembly 304 includes a reinforcing rib 3041 and a support rib 3042. The middle part of the reinforcing rib 3041 bulges upward, and its shape is adapted to the outer frame 301. The support rib 3042 is fixedly connected to both sides of the bottom of the reinforcing rib 3041. The reinforcing rib 3041 and the support rib 3042 can form an "A" - shaped structure to play a good role in supporting and reinforcing, and prevent the filter plate structure 300 from collapsing due to the impact of coal slag.

[0033] In one embodiment, the reinforcement components 304 are supported and arranged below the wire mesh cover 302, and the number thereof can be set to two or more, for propping up the wire mesh cover 302 to prevent the wire mesh cover 302 from collapsing or breaking.

[0034] In one embodiment, the reinforcement components of the filter screen plate structure 300 can also adopt other feasible forms or structures, as long as they can support and reinforce the wire mesh cover.

[0035] In one embodiment, a buffer support component 400 is additionally arranged between the fixing member 303 and the main body 100. The buffer support component can support the filter screen plate structure 300 and can achieve a buffer protection effect. When the cinder impacts on the filter screen plate structure 300, the buffer support component 400 can buffer and weaken the impact force, thereby preventing the wire mesh cover 302 of the filter screen plate structure 300 from breaking.

[0036] Figure 4 A partial enlarged view of the buffer support component according to one embodiment is shown. In this embodiment, the buffer support component 400 includes support side blocks 401, mounting grooves 402, guide and limit rods 403, springs 405, and rubber pads 406. The support side blocks 401 are symmetrically fixed on both sides of the main body 100 and are adapted to the position of the fixing member 303. The mounting grooves 402 are opened inside the support side blocks 401. The fixing member 303 extends into the inside of the mounting grooves 402 and can prop up the filter screen plate structure 300.

[0037] In one embodiment, the guide and limit rods 403 are fixedly connected between the upper and lower inner walls of the mounting grooves 402 and are slidably connected through the guide holes 404 opened on the fixing member 303. There is a gap between the fixing member 303 and the mounting grooves 402, allowing the fixing member 303 to move up and down inside the mounting grooves 402. The design of the guide and limit rods 403 and the guide holes 404 can enable the fixing member 303 to move stably without tilting or falling off.

[0038] In one embodiment, the springs 405 are sleeved on the outer sides of the guide and limit rods 403 and are abutted between the bottom surface of the fixing member 303 and the lower inner wall of the mounting grooves 402. When the cinder impacts on the filter screen plate structure 300, the filter screen plate structure 300 will move downward to a certain extent, and the fixing member 303 will descend inside the mounting grooves 402. At this time, the springs 405 are compressed and can buffer the impact force of the impact, further protecting the filter screen plate structure 300 and preventing the wire mesh cover 302 from breaking.

[0039] In one embodiment, the rubber pads 406 can be fixed to the upper and lower inner walls of the mounting groove 402. The upper surface of the fixing member 303 is in contact with the upper rubber pad 406, and the lower end of the spring 405 is in contact with the lower rubber pad 406, which is used to protect the fixing member 303, the mounting groove 402, and the spring 405 to prevent them from being damaged due to mutual impact.

[0040] References herein to "each embodiment", "some embodiments", "one embodiment", or "an embodiment", etc. refer to specific features, structures, or properties described in connection with the at least one embodiment being included in at least one embodiment. Thus, the appearances of the phrases "in each embodiment", "in some embodiments", "in one embodiment", or "in an embodiment", etc. throughout this document are not necessarily referring to the same embodiment. Additionally, the specific features, structures, or properties may be combined in any suitable manner in one or more embodiments. Therefore, the specific features, structures, or properties shown or described in connection with one embodiment may be combined with the features, structures, or properties of one or more other embodiments, either wholly or partially, without limitation, as long as the combination is not illogical or non - working. Expressions such as "in accordance with A", "based on A", "by A", or "using A" that appear herein are meant to be non - exclusive. That is, "in accordance with A" can cover "only in accordance with A", and can also cover "in accordance with A and B", unless specifically stated to mean "only in accordance with A". For clarity in this application, some illustrative operation steps are described in a certain order, but those skilled in the art can understand that each of these operation steps is not essential. Some of these steps can be omitted or replaced by other steps. These operation steps do not necessarily have to be executed in the order shown. Instead, some of these operation steps can be executed in a different order according to actual needs, or in parallel, as long as the new execution method is not illogical or non - working.

[0041] Thus, several aspects of at least one embodiment of the present utility model have been described. It can be understood that various changes, modifications, and improvements can be easily made by those skilled in the art. Such changes, modifications, and improvements are intended to be within the spirit and scope of the present utility model. Although the present utility model has been described through some embodiments, the present utility model is not limited to the embodiments described herein, and also includes various changes and variations made without departing from the scope of the present utility model.

Claims

1. A boiler slag removal device, characterized in that: include: Subject(100); A spiral cutter (200) rotatably disposed inside the main body (100); One or more bottom openings (700) are arranged at the bottom of the main body (100); A filter plate structure (300) is arranged inside the main body (100) and below the spiral blade (200), wherein the middle portion of the filter plate structure (300) protrudes upward, and the filter plate structure (300) comprises: Frame (301); A mesh cover (302) disposed inside the outer frame (301) and used for filtering, wherein the middle portion of the mesh cover (302) protrudes upward; a fixing member (303) for fixing the outer frame (301); and A reinforcement component (304) is used to support and reinforce the mesh cover (302).

2. The boiler slag removal equipment according to claim 1, wherein: The outer frame (301) is a rectangular frame structure with a central portion convex upwards; The fixing members (303) are arranged at the bottoms of both ends of the outer frame (301); and The reinforcement component (304) is arranged inside the outer frame (301).

3. The boiler slag removal equipment according to claim 2, wherein: The reinforcement component (304) comprises a reinforcing rib (3041) and a supporting rib (3042); the middle portion of the reinforcing rib (3041) protrudes upward; the supporting rib (3042) is fixedly connected to two sides of the bottom of the reinforcing rib (3041); the reinforcing rib (3041) and the supporting rib (3042) form an "A"-shaped structure.

4. The boiler slag removal equipment according to claim 1, characterized in that: Also includes: One or more flushing nozzles (800) are located above the filter plate structure (300).

5. The boiler slag removal equipment according to claim 1, characterized in that: Also includes: One or more side ports (500) are located near the bottom of the filter plate structure (300).

6. The boiler slag removal equipment according to claim 1, characterized in that: Also includes: A buffer support assembly (400) is arranged between the fixing member (303) and the main body (100).

7. The boiler slag removal equipment according to claim 6, wherein: The buffer support assembly (400) comprises a support side block (401), a mounting groove (402), a guide limit rod (403), a spring (405) and a rubber pad (406); the support side block (401) is symmetrically fixed on both sides of the main body (100); the mounting groove (402) is provided inside the support side block (401); and the fixing member (303) extends into the inside of the mounting groove (402).

8. The boiler slag removal equipment according to claim 7, wherein: The guide limit rod (403) is fixedly connected between the upper and lower inner walls of the installation groove (402), and is slidably connected to the guide hole (404) provided on the fixing member (303).

9. The boiler slag removal equipment according to claim 7, wherein: The spring (405) is sleeved on the outside of the guide limiting rod (403) and is disposed in contact between the bottom surface of the fixing member (303) and the lower inner wall of the installation groove (402).

10. The boiler slag removal equipment according to claim 7, wherein: The rubber pad (406) is fixed to the upper and lower inner walls of the mounting groove (402), and the upper surface of the fixing member (303) is in contact with the upper rubber pad (406).

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