A self-cleaning screen structure for a furnace coal and sawdust separator

Abstract

The utility model relates to high spray coal technology field discloses a kind of stove coal sawdust separator self-cleaning screen mesh structure, including stove coal sawdust separator.The utility model is rotated by handle fixed link by personnel, fixed link drives rotating column to rotate in fixed column inner wall and is opened in rotating column bottom Entrainment, connecting rod sliding is driven by Entrainment, connecting rod slides in fixed column and connecting plate inside, connecting rod drives limit piece to spring compression, connecting rod is fixed with clamping rod, make clamping rod slide in connecting plate inside while separate from clamping groove can be disassembled to whole, screen mesh is fixed on the outer wall of connecting plate, screen mesh is larger than previous dense eye hole simultaneously using stainless steel material, reduce the probability of coal dust accumulation when stove coal sawdust separator is running, reduce the loss of component, reduce the workload and difficulty of equipment maintenance, ensure the normal pulverizing of coal injection, simultaneously without disassembling a large number of bolts, the quick installation of screen mesh is realized by mechanical clamping structure, greatly shorten installation time.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure coal injection technology, and in particular to a self-cleaning screen structure for a coal-wood chip separator. Background Technology

[0002] The pulverized coal and wood chip separator is a key piece of equipment in the pulverized coal injection system for purifying pulverized coal. Its main function is to separate and remove impurities such as wood chips, fibers, and debris mixed in with the pulverized coal before it enters the blast furnace injection process. In the blast furnace ironmaking process, pulverized coal needs to be processed through crushing, grinding, and other processes. During this process, impurities may be introduced due to raw material carryover or equipment wear. If these impurities enter the blast furnace, they may cause blockage of the pulverized coal injection pipes, wear of the injection lance, or even affect the stability of the reaction inside the furnace.

[0003] Existing coal-fired wood chip separators suffer from excessive coal powder discharge, leading to coal powder accumulation. Under prolonged high-load operation, the bearing components of the separator experience accelerated wear, significantly shortening their service life and causing frequent malfunctions. This not only severely disrupts the continuity of the coal pulverization process and affects normal production progress, but also increases the workload and difficulty of equipment maintenance due to frequent downtime for bearing replacement, causing numerous inconveniences to production and operation. This indirectly affects the overall operating efficiency and stability of the coal injection system. Furthermore, replacing the screen requires disassembling a large number of bolts; frequent bolt disassembly and installation not only prolong equipment downtime for maintenance but also disrupts the continuity of coal pulverization. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a self-cleaning screen structure for a coal-fired wood chip separator.

[0005] This utility model is achieved by the following technical solution: a self-cleaning screen structure for a coal-fired wood chip separator, including a coal-fired wood chip separator, a quick-change component detachably connected to the coal-fired wood chip separator, a positioning component at the bottom of the coal-fired wood chip separator, and a slag-cleaning component on the coal-fired wood chip separator. The quick-change assembly includes a slot, a locking rod slidably connected to the outer wall of the slot, a connecting plate slidably connected to the outer wall of the locking rod, a fixing post fixedly connected to the end of the connecting plate away from the slot, a rotating post rotatably connected to the inner wall of the fixing post, a fixing rod fixedly connected to the inner wall of the rotating post, a handle fixedly connected to the end of the fixing rod away from the rotating post, a guide groove provided on the rotating post, a connecting rod slidably connected to the outer wall of the guide groove, a limit piece fixedly connected to the outer wall of the end of the connecting rod away from the rotating post, a spring sleeved on the outer wall of the connecting rod, and a screen fixedly connected to the outer wall of the connecting plate.

[0006] As a further improvement to the above solution, the slot is formed on the inner wall of the coal-fired wood chip separator, the fixing rod is rotatably connected to the inside of the fixing column, the connecting rod is fixedly connected to the outer end of the clamping rod, and the connecting rod is slidably connected to the inner wall of the connecting plate.

[0007] The above technical solution involves fixing a screen to the outer wall of the connecting plate. The screen has a larger mesh size than the previous one and is made of stainless steel. This reduces the probability of coal dust accumulation during operation of the coal-fired wood chip separator, reduces component wear, and lowers the workload and difficulty of equipment maintenance. It ensures normal coal pulverization and eliminates the need to disassemble a large number of bolts. The mechanical snap-fit ​​structure enables rapid installation of the screen, significantly shortening the installation time.

[0008] As a further improvement to the above solution, the positioning component includes a positioning groove, which is opened at the bottom of the coal-fired wood chip separator. A positioning block is slidably connected to the outer wall of the positioning groove, and the positioning block is fixedly connected to the outer wall of the connecting plate.

[0009] The above technical solution ensures installation accuracy and reduces installation time by having the positioning block slide on the outer wall of the positioning groove.

[0010] As a further improvement to the above solution, the slag removal assembly includes a support plate, which is fixedly connected to the top of the coal-fired wood chip separator, and a motor is fixedly connected to the bottom of the support plate.

[0011] As a further improvement to the above solution, a rotating rod is fixedly connected to the output end of the motor, and the rotating rod is rotatably connected inside the coal-fired wood chip separator.

[0012] As a further improvement to the above solution, a scraper is fixedly connected to the outer wall of the rotating rod, a support rod is fixedly connected to the inner wall of the coal-fired wood chip separator, and a fixing block is rotatably connected to the outer wall of the support rod.

[0013] As a further improvement to the above solution, a cover plate is fixedly connected to the outer wall of the fixed block, a first handle is fixedly connected to the top of the cover plate, and a cleaning hole is opened on the top of the furnace coal-fired wood chip separator.

[0014] Through the above technical solution, the motor drives the rotating rod to rotate inside the separator, and the scraper on the outer wall of the rotating rod rotates synchronously with it to continuously scrape off the coal powder and impurities accumulated on the screen surface, preventing the equipment load from being too high due to coal powder accumulation. By flipping the cover plate upward with the first handle, the cleaning hole is fully exposed, which makes it easy for the operator to directly perform deep cleaning inside the separator and ensure the continuous and stable operation of the equipment.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention allows a person to rotate a fixed rod via a handle. The fixed rod then rotates a rotating column. A guide groove is cut into the bottom of the rotating column on the inner wall of the fixed column. The guide groove causes a connecting rod to slide. The connecting rod slides inside the fixed column and the connecting plate. The connecting rod causes a limiting plate to compress a spring, and the connecting rod is fixed to a locking rod. As the locking rod slides inside the connecting plate, it disengages from the locking groove, allowing for disassembly of the entire unit. A screen is fixed to the outer wall of the connecting plate. The screen has larger mesh than previous models and is made of stainless steel. This reduces the probability of coal dust accumulation during operation of the coal-fired wood chip separator, reduces component wear, and lowers the workload and difficulty of equipment maintenance. It ensures normal coal pulverization and eliminates the need to disassemble numerous bolts. The mechanical locking structure enables rapid installation of the screen, significantly shortening the installation time.

[0016] This utility model uses a motor to be stably fixed to the top of the coal-fired wood chip separator via a support plate. Its output end drives the rotating rod to rotate inside the separator. The scraper on the outer wall of the rotating rod rotates synchronously with it, continuously scraping away the coal powder and impurities accumulated on the screen surface, preventing excessive equipment load caused by coal powder accumulation. By flipping the cover plate upwards with the first handle, the cover plate drives the fixed block to move. The fixed block rotates on the outer wall of the support rod, making the cleaning hole fully exposed, which allows the operator to directly perform deep cleaning inside the separator, ensuring the continuous and stable operation of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the quick-change component structure of this utility model; Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle; Figure 4 This is a schematic diagram of the positioning component structure of this utility model; Figure 5 This is a schematic diagram of the slag removal component of this utility model; Figure 6 This utility model Figure 5 Enlarged structural diagram of section B.

[0018] Explanation of key symbols: 1. Coal-fired wood chip separator; 2. Quick-change assembly; 201. Slot; 202. Rod; 203. Connecting plate; 204. Fixed column; 205. Rotating column; 206. Fixed rod; 207. Handle; 208. Guide groove; 209. Connecting rod; 210. Limiting plate; 211. Spring; 212. Screen; 3. Positioning assembly; 301. Positioning groove; 302. Positioning block; 4. Slag cleaning assembly; 401. Support plate; 402. Motor; 403. Rotating rod; 404. Scraper; 405. Support rod; 406. Fixed block; 407. Cover plate; 408. First handle; 409. Cleaning hole. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0020] Please combine Figure 1-6 This embodiment discloses a self-cleaning screen structure for a coal-fired wood chip separator, including a coal-fired wood chip separator 1, a quick-change component 2 detachably connected to the coal-fired wood chip separator 1, a positioning component 3 at the bottom of the coal-fired wood chip separator 1, and a slag-cleaning component 4 on the coal-fired wood chip separator 1.

[0021] The quick-change assembly 2 includes a slot 201, a locking rod 202 slidably connected to the outer wall of the slot 201, a connecting plate 203 slidably connected to the outer wall of the locking rod 202, a fixing post 204 fixedly connected to the end of the connecting plate 203 away from the slot 201, a rotating post 205 rotatably connected to the inner wall of the fixing post 204, a fixing rod 206 fixedly connected to the inner wall of the rotating post 205, a handle 207 fixedly connected to the end of the fixing rod 206 away from the rotating post 205, a guide groove 208 opened on the rotating post 205, a connecting rod 209 slidably connected to the outer wall of the guide groove 208, a limit piece 210 fixedly connected to the outer wall of the end of the connecting rod 209 away from the rotating post 205, a spring 211 sleeved on the outer wall of the connecting rod 209, and a screen 212 fixedly connected to the outer wall of the connecting plate 203. The connecting plate 203 is provided with a sliding groove for sliding the locking rod 202, the connecting rod 209, and the limiting piece 210. One end of the spring 211 abuts against the inner wall of the sliding groove, and the other end abuts against the limiting piece 210.

[0022] The slot 201 is opened on the inner wall of the coal injection wood chip separator 1, the fixing rod 206 is rotatably connected to the inside of the fixing column 204, the limiting piece 210 is fixedly connected to the locking rod 202, and the connecting rod 209 is slidably connected to the inner wall of the connecting plate 203.

[0023] The positioning component 3 includes a positioning groove 301, which is located at the bottom of the coal-fired wood chip separator 1. A positioning block 302 is slidably connected to the outer wall of the positioning groove 301, and the positioning block 302 is fixedly connected to the outer wall of the connecting plate 203.

[0024] The slag removal assembly 4 includes a support plate 401, which is fixedly connected to the top of the coal injection wood chip separator 1, and a motor 402 is fixedly connected to the bottom of the support plate 401.

[0025] A rotating rod 403 is fixedly connected to the output end of the motor 402, and the rotating rod 403 is rotatably connected inside the coal-fired wood chip separator 1.

[0026] A scraper 404 is fixedly connected to the outer wall of the rotating rod 403, and a support rod 405 is fixedly connected to the inner wall of the coal-fired wood chip separator 1. A fixing block 406 is rotatably connected to the outer wall of the support rod 405.

[0027] A cover plate 407 is fixedly connected to the outer wall of the fixed block 406, and a first handle 408 is fixedly connected to the top of the cover plate 407. A cleaning hole 409 is opened on the top of the coal spraying wood chip separator 1.

[0028] The implementation principle of the self-cleaning screen structure of the coal-fired wood chip separator in this application embodiment is as follows: A person rotates the fixed rod 206 via the handle 207. The fixed rod 206 drives the rotating column 205 to rotate within the fixed column 204. Simultaneously, a guide groove 208 is opened at the bottom of the rotating column 205, which drives the connecting rod 209 to slide. The connecting rod 209 slides within the fixed column 204 and the connecting plate 203. The connecting rod 209 drives the limiting plate 210 to compress the spring 211. Simultaneously, the connecting rod 209 is fixed to the locking rod 202, causing the locking rod 202 to slide within the connecting plate 203 and disengage from the locking groove 201. At this point, the entire assembly can be disassembled. A screen 212 is fixed to the outer wall of the connecting plate 203. The screen 212 has larger mesh sizes than previous models and is made of stainless steel. This reduces the probability of coal dust accumulation during operation of the coal-fired wood chip separator 1, reduces component wear, and thus reduces the workload and difficulty of equipment maintenance, ensuring the correct coal injection. The system operates without disassembling numerous bolts, and the screen is quickly installed via a mechanical snap-fit ​​structure, significantly reducing installation time and manual labor intensity. During the installation of the quick-change component 2, the positioning block 302 slides on the outer wall of the positioning groove 301, ensuring installation accuracy and minimizing installation time. The motor 402 is stably fixed to the top of the coal-wood chip separator 1 via the support plate 401. Its output end drives the rotating rod 403 to rotate inside the separator. The scraper 404 on the outer wall of the rotating rod 403 rotates synchronously, continuously scraping away coal powder and impurities accumulated on the screen surface, preventing excessive equipment load due to coal powder accumulation. When manual cleaning of residual impurities is required, the cover plate 407 is flipped upwards using the first handle 408. The cover plate 407 moves the fixing block 406, which rotates on the outer wall of the support rod 405, fully exposing the cleaning hole 409. This allows operators to directly perform deep cleaning of the separator's interior, ensuring continuous and stable equipment operation.

[0029] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A self-cleaning screen structure for a coal-fired wood chip separator, characterized in that, The furnace includes a coal-fired wood chip separator (1), a quick-change assembly (2) is detachably connected to the coal-fired wood chip separator (1), a positioning assembly (3) is provided at the bottom of the coal-fired wood chip separator (1), and a slag cleaning assembly (4) is also provided on the coal-fired wood chip separator (1). The quick-change assembly (2) includes a slot (201), a locking rod (202) is slidably connected to the outer wall of the slot (201), a connecting plate (203) is slidably connected to the outer wall of the locking rod (202), a fixing post (204) is fixedly connected to one end of the connecting plate (203) away from the slot (201), a rotating post (205) is rotatably connected to the inner wall of the fixing post (204), and a fixing rod (206) is fixedly connected to the inner wall of the rotating post (205). 06) A handle (207) is fixedly connected to one end away from the rotating column (205). A guide groove (208) is provided on the rotating column (205). A connecting rod (209) is slidably connected to the outer wall of the guide groove (208). A limit piece (210) is fixedly connected to the outer wall of the end of the connecting rod (209) away from the rotating column (205). A spring (211) is sleeved on the outer wall of the connecting rod (209). A screen (212) is fixedly connected to the outer wall of the connecting plate (203).

2. The self-cleaning screen structure of the coal-fired wood chip separator as described in claim 1, characterized in that: The slot (201) is opened on the inner wall of the coal injection wood chip separator (1), the fixing rod (206) is rotatably connected to the inside of the fixing column (204), the connecting rod (209) is fixedly connected to the outer end of the clamping rod (202), and the connecting rod (209) is slidably connected to the inner wall of the connecting plate (203).

3. The self-cleaning screen structure of the coal-fired wood chip separator as described in claim 1, characterized in that: The positioning component (3) includes a positioning groove (301), which is located at the bottom of the coal-fired wood chip separator (1). A positioning block (302) is slidably connected to the outer wall of the positioning groove (301), and the positioning block (302) is fixedly connected to the outer wall of the connecting plate (203).

4. The self-cleaning screen structure of the coal-fired wood chip separator as described in claim 1, characterized in that: The slag removal assembly (4) includes a support plate (401), which is fixedly connected to the top of the coal injection wood chip separator (1), and a motor (402) is fixedly connected to the bottom of the support plate (401).

5. The self-cleaning screen structure of the coal-fired wood chip separator as described in claim 4, characterized in that: The output end of the motor (402) is fixedly connected to a rotating rod (403), which is rotatably connected inside the coal-fired wood chip separator (1).

6. The self-cleaning screen structure of the coal injection wood chip separator as described in claim 5, characterized in that: A scraper (404) is fixedly connected to the outer wall of the rotating rod (403), and a support rod (405) is fixedly connected to the inner wall of the coal spraying wood chip separator (1). A fixing block (406) is rotatably connected to the outer wall of the support rod (405).

7. The self-cleaning screen structure of the coal-fired wood chip separator as described in claim 6, characterized in that: The outer wall of the fixed block (406) is fixedly connected to a cover plate (407), and the top of the cover plate (407) is fixedly connected to a first handle (408). The top of the furnace coal spray wood chip separator (1) is provided with a cleaning hole (409).

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