Waste incineration power generation anti-blocking boiler flue ash conveying mechanism
By designing boiler guide ash conveyor assembly, flue adjustment assembly and anti-blocking ash conveyor assembly, the problems of screw conveyor failure and high maintenance difficulties are solved, and the safe operation of the boiler and power saving are achieved.
Patent Information
- Application Number
- CN202421487601.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The screw conveyor of the waste heat boiler in Xixian project has a high frequency of failure due to high temperature and corrosion, which affects the safety and economical operation of the boiler, and is difficult to maintain and consumes high power.
A boiler flue ash conveying mechanism including boiler guide ash conveying assembly, flue adjustment assembly and anti-blocking ash conveying assembly was designed, through the cutting trough, support stabilization frame, stainless steel manual valve and electric double-layer flip valve, etc. Components to avoid jamming and blocking of dust, adjust the speed of dust falling, and extend the service life of the equipment.
It completely eliminates the jamming and dust blocking of the screw conveyor, improves the continuous safe operation time of the unit, reduces the difficulty of maintenance and power consumption, and saves labor and spare parts costs.
Smart Images
Figure CN222210358U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of boiler flue ash conveying mechanisms, in particular to an anti-clogging boiler flue ash conveying mechanism for garbage incineration power generation. Background Art
[0002] The Xixian project's waste heat boiler (HRSG) features a horizontal, suspended structure, with three vertical radiating channels arranged above the grate. Ash hoppers are located at the bottom of the secondary and tertiary flues, and the accumulated fly ash in these hoppers is conveyed to the side walls of the grate's combustion section via two screw conveyors. Due to the high flue temperatures in the secondary and tertiary flues, the accumulated ash also reaches extremely high temperatures, causing the ash hoppers and ash drop pipes to overheat severely, becoming the primary heat source in the boiler building. Due to the combined effects of high temperatures and corrosion, the screw conveyors frequently malfunction, increasing equipment maintenance costs and impacting boiler operation safety and economic efficiency. Furthermore, replacing the screw conveyors or addressing ash blockages requires ongoing, ongoing operations, posing significant risks. Utility Model Content
[0003] In order to overcome the problems of the original screw conveyor getting stuck and blocked during use, the problems of the original screw conveyor blades being easily worn, difficult to repair, and long repair period were solved; the problem of the original screw conveyor body dissipating a large amount of heat to the environment was solved.
[0004] The technical solution of the utility model is: a waste incineration power generation anti-clogging boiler flue ash conveying mechanism, including a boiler flue ash conveying mechanism body, and also including a boiler guide ash conveying component, a flue adjustment component, and an anti-clogging ash conveying component; the boiler flue ash conveying mechanism body is divided into a boiler guide ash conveying component for guided ash conveying; the lower end of the boiler guide ash conveying component is fixedly installed with a flue adjustment component; the lower end of the flue adjustment component is fixedly installed with an anti-clogging ash conveying component for anti-clogging.
[0005] Preferably, the jamming and clogging failures of the original screw conveyor can be completely eliminated, and the continuous safe operation time of the unit can be increased; the problems of easy wear of the screw conveyor blades, difficulty in maintenance, and long maintenance period can be solved, saving labor and spare parts costs; the power consumption of the equipment is slightly reduced after the transformation, saving factory electricity.
[0006] Preferably, the boiler guide ash conveying assembly includes a boiler body, an anti-corrosion protective layer, a discharge chute, a supporting and stabilizing frame and an ash hopper guard plate; the anti-corrosion protective layer is fixedly connected to the inside of the boiler body, and the ash is discharged from the discharge chute opened at the bottom end of the boiler body. The anti-corrosion protective layer inside the boiler body has an anti-corrosion protection effect, which extends the service life of the device.
[0007] Preferably, a material discharge groove is provided at the bottom end of the boiler body; a supporting and stabilizing frame is fixedly installed at the bottom end of the interior of the boiler body; an ash hopper guard plate is fixedly connected to the outside of the supporting and stabilizing frame, and the ash hopper guard plate inside the boiler body has a protective and guiding function. The supporting and stabilizing frame at the lower end of the ash hopper guard plate can increase the stability of the ash hopper guard plate to avoid damage caused by excessive pressure.
[0008] Preferably, the flue adjustment assembly includes a flue pipe, an adjustment slot, a U-shaped support frame, an adjustment plug plate, a stainless steel manual valve and a connecting slot plate; the flue pipe is fixedly installed at the lower end of the boiler body; an adjustment slot is opened at the side end of the flue pipe, and the stainless steel manual valve at the side end of the U-shaped support frame is rotated so that the stainless steel manual valve drives the adjustment plug plate to slide in the adjustment slot opened in the flue pipe for a limited position.
[0009] Preferably, a U-shaped support frame is fixedly installed at the side end of the flue pipe; an adjusting plug plate is provided inside the flue pipe; a stainless steel manual valve is fixedly connected to the side end of the adjusting plug plate; a connecting groove plate is fixedly installed at the lower end of the flue pipe, so as to achieve the purpose of adjusting the ash falling speed, and the ash enters the anti-blocking smoke pipe from the flue pipe.
[0010] Preferably, the anti-blocking ash conveying component includes an anti-blocking smoke pipe, a fixed support frame, a stainless steel electric double-layer flap valve, a stainless steel metal expansion joint and a stainless steel ash drop pipe; the anti-blocking smoke pipe is fixedly installed at the lower end of the connecting trough plate; the side end of the anti-blocking smoke pipe is fixedly installed with a fixed support frame. Starting the stainless steel electric double-layer flap valve in the fixed support frame at the side end of the anti-blocking smoke pipe can completely eliminate the original screw conveyor jamming and ash blockage failure, and improve the continuous and safe operation time of the unit. The stainless steel metal expansion joint at the lower end of the stainless steel electric double-layer flap valve can solve the problems of easy wear of the screw conveyor blades, difficulty in maintenance, long maintenance period, etc., saving labor and spare parts costs.
[0011] Preferably, a stainless steel electric double-layer flap valve is provided at the side end of the fixed support frame; a stainless steel metal expansion joint is fixedly connected to the lower end of the anti-blocking smoke pipe; a stainless steel ash dropping pipe is fixedly connected to the lower end of the stainless steel metal expansion joint. After the transformation, the power consumption of the equipment is slightly reduced, saving factory electricity. Finally, the ash falls from the stainless steel ash dropping pipe, of which the outer two ash dropping pipes are merged into the original screw conveyor ash dropping pipes and transported to the side wall of the combustion section grate, and the middle two ash dropping pipes are merged into the scraper conveying pipe at the bottom of the horizontal channel and transported to the upper chute of the slag discharger.
[0012] Beneficial effects of the utility model:
[0013] 1. During use, the original screw conveyor jamming and ash blocking faults can be completely eliminated, and the continuous safe operation time of the unit can be increased. The problems of easy wear of the screw conveyor blades, difficulty in maintenance, and long maintenance period can be solved, saving labor and spare parts costs. After the transformation, the power consumption of the equipment has been slightly reduced, saving factory electricity.
[0014] 2. Ash is discharged from the discharge channel opened at the bottom of the boiler body. The anti-corrosion protective layer inside the boiler body has an anti-corrosion protection effect, extending the service life of the device. The ash hopper guard plate inside the boiler body has a protective and guiding function. The support and stabilizing frame at the bottom of the ash hopper guard plate can increase the stability of the ash hopper guard plate to avoid damage caused by excessive pressure;
[0015] 3. Turn the stainless steel manual valve on the side of the U-shaped support frame to drive the regulating plate to slide within the regulating slot in the flue pipe, thereby adjusting the ash falling speed. The ash flows from the flue pipe into the anti-blocking flue pipe.
[0016] 4. Starting the stainless steel electric double-layer flap valve in the fixed support frame at the side end of the anti-blocking smoke pipe can completely eliminate the original screw conveyor jamming and ash blocking failure, and improve the continuous safe operation time of the unit. The stainless steel metal expansion joint at the lower end of the stainless steel electric double-layer flap valve can solve the problems of easy wear of the screw conveyor blades, difficult maintenance, and long maintenance period, saving labor and spare parts costs; after the transformation, the power consumption of the equipment decreased slightly, saving factory electricity. Finally, the ash falls from the stainless steel ash falling pipe, of which the outer two ash falling pipes are merged into the original screw conveyor ash falling pipe and transported to the side wall of the combustion section grate, and the middle two ash falling pipes are merged into the scraper conveying pipe at the bottom of the horizontal channel and transported to the upper chute of the slag discharger. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Shown is a three-dimensional structural diagram of the boiler flue ash conveying mechanism of the present utility model;
[0018] Figure 2 Shown is a schematic diagram of the boiler guide ash conveying component structure of the boiler flue ash conveying mechanism of the present utility model;
[0019] Figure 3 Shown is a schematic diagram of the flue regulating assembly of the boiler flue ash conveying mechanism of the present utility model;
[0020] Figure 4 Shown is a schematic diagram of the anti-blocking ash conveying component of the boiler flue ash conveying mechanism of the present invention.
[0021] Explanation of the accompanying symbols: 1. Boiler flue ash conveying mechanism body; 2. Boiler guide ash conveying assembly; 3. Flue adjustment assembly; 4. Anti-blocking ash conveying assembly; 201. Boiler body; 202. Anti-corrosion protective layer; 203. Feeding chute; 204. Support and stabilization frame; 205. Ash hopper guard plate; 301. Flue pipe; 302. Adjustment chute; 303. U-shaped support frame; 304. Adjustment plug plate; 305. Stainless steel manual valve; 306. Connecting groove plate; 401. Anti-blocking flue pipe; 402. Fixed support frame; 403. Stainless steel electric double-layer flap valve; 404. Stainless steel metal expansion joint; 405. Stainless steel ash drop pipe. DETAILED DESCRIPTION
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] See also Figure 1 The utility model provides an embodiment: a waste incineration power generation boiler flue ash conveying mechanism with anti-blocking, comprising a boiler flue ash conveying mechanism body 1, and also comprising a boiler guide ash conveying component 2, a flue regulating component 3, and an anti-blocking ash conveying component 4; the boiler flue ash conveying mechanism body 1 is divided into a boiler guide ash conveying component 2 for guiding ash conveying; the lower end of the boiler guide ash conveying component 2 is fixedly installed with a flue regulating component 3; the lower end of the flue regulating component 3 is fixedly installed with an anti-blocking ash conveying component 4 for anti-blocking, which can completely eliminate the jamming and ash blockage failures of the original screw conveyor and improve the continuous and safe operation time of the unit; solve the problems of easy wear of the screw conveyor blades, high maintenance difficulty, and long maintenance period, saving labor and spare parts costs; after the transformation, the power consumption of the equipment is slightly reduced, saving factory electricity.
[0024] See also Figure 2 In this embodiment, the boiler ash guide conveying assembly 2 includes a boiler body 201, an anti-corrosion protective layer 202, a material discharge groove 203, a support and stabilizing frame 204 and an ash hopper guard plate 205; the boiler body 201 is fixedly connected with the anti-corrosion protective layer 202, and the bottom end of the boiler body 201 is provided with a material discharge groove 203; the bottom end of the boiler body 201 is fixedly installed with a support and stabilizing frame 204; the outside of the support and stabilizing frame 204 is fixedly connected with the ash hopper guard plate 205, and the ash is discharged from the material discharge groove 203 opened at the bottom end of the boiler body 201. The anti-corrosion protective layer 202 inside the boiler body 201 has an anti-corrosion protection function and extends the service life of the device. The ash hopper guard plate 205 inside the boiler body 201 has a protective and guiding function. The support and stabilizing frame 204 at the lower end of the ash hopper guard plate 205 can increase the stability of the ash hopper guard plate 205 and avoid damage caused by excessive pressure.
[0025] See also Figure 3-4In this embodiment, the flue adjustment assembly 3 includes a flue pipe 301, an adjustment slot 302, a U-shaped support frame 303, an adjustment plug 304, a stainless steel manual valve 305 and a connecting slot plate 306; the flue pipe 301 is fixedly installed at the lower end of the boiler body 201; the side end of the flue pipe 301 is provided with an adjustment slot 302, and the side end of the flue pipe 301 is fixedly installed with a U-shaped support frame 303; the inside of the flue pipe 301 is provided with an adjustment plug 304; the side end of the adjustment plug 304 is fixedly connected to the stainless steel manual valve 305; the flue pipe 301 01 is fixedly installed with a connecting groove plate 306 at the lower end, and the stainless steel manual valve 305 at the side end of the U-shaped support frame 303 is rotated to make the stainless steel manual valve 305 drive the regulating plug plate 304 to slide within the regulating groove 302 opened in the flue pipe 301, thereby achieving the purpose of adjusting the ash falling speed, and the ash enters the anti-blocking smoke pipe 401 from the flue pipe 301. The anti-blocking ash conveying component 4 includes the anti-blocking smoke pipe 401, the fixed support frame 402, the stainless steel electric double-layer flap valve 403, the stainless steel metal expansion joint 404 and the stainless steel ash falling pipe 405; The lower end of the connecting trough plate 306 is fixedly installed with an anti-blocking smoke pipe 401; the side end of the anti-blocking smoke pipe 401 is fixedly installed with a fixed support frame 402, and the side end of the fixed support frame 402 is provided with a stainless steel electric double-layer flap valve 403; the lower end of the anti-blocking smoke pipe 401 is fixedly connected with a stainless steel metal expansion joint 404; the lower end of the stainless steel metal expansion joint 404 is fixedly connected with a stainless steel ash falling pipe 405. Starting the stainless steel electric double-layer flap valve 403 in the fixed support frame 402 at the side end of the anti-blocking smoke pipe 401 can completely put an end to the original screw conveyor jamming and ash blocking fault. The ash is removed from the stainless steel ash pipe 405, of which the two outer ash pipes are merged into the original screw conveyor ash pipes and transported to the side wall of the combustion section grate, and the two middle ash pipes are merged into the scraper ash pipe at the bottom of the horizontal channel and transported to the upper chute of the slag discharger.
[0026] During use, ash is first discharged from the discharge channel 203 opened at the bottom of the boiler body 201. The anti-corrosion protection layer 202 inside the boiler body 201 has an anti-corrosion protection function, extending the service life of the device. The ash hopper guard plate 205 inside the boiler body 201 has a protective and guiding function. The support and stabilizing frame 204 at the lower end of the ash hopper guard plate 205 can increase the stability of the ash hopper guard plate 205 and prevent damage caused by excessive pressure.
[0027] Then, the stainless steel manual valve 305 at the side end of the U-shaped support frame 303 is rotated, so that the stainless steel manual valve 305 drives the regulating plug plate 304 to slide within the regulating slot 302 opened in the flue pipe 301, thereby achieving the purpose of adjusting the ash falling speed, and the ash enters the anti-blocking smoke pipe 401 from the flue pipe 301. Finally, the stainless steel electric double-layer flap valve 403 in the fixed support frame 402 at the side end of the anti-blocking smoke pipe 401 is activated, which can completely eliminate the original screw conveyor jamming and ash blocking fault, and improve the continuous and safe operation of the unit. Time, the stainless steel metal expansion joint 404 at the lower end of the stainless steel electric double-layer flap valve 403 can solve the problems of easy wear of the screw conveyor blades, difficult maintenance, long maintenance period, etc., saving labor and spare parts costs; after the transformation, the power consumption of the equipment is slightly reduced, saving factory electricity. Finally, the ash falls from the stainless steel ash falling pipe 405, of which the outer two ash falling pipes are merged into the original screw conveyor ash falling pipes and transported to the side wall of the combustion section grate, and the middle two ash falling pipes are merged into the scraper ash conveying pipe at the bottom of the horizontal channel and transported to the upper chute of the slag discharger.
[0028] Through the above steps, the original screw conveyor jamming and ash blockage faults can be completely eliminated, and the continuous safe operation time of the unit can be improved; the problems of easy wear of the screw conveyor blades, difficulty in maintenance, and long maintenance period can be solved, saving labor and spare parts costs; after the transformation, the power consumption of the equipment is slightly reduced, saving factory electricity.
[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.
Claims
1. A boiler flue ash conveying mechanism for preventing clogging of a waste incineration power generation system, comprising a boiler flue ash conveying mechanism body (1); characterized in that: It also includes a boiler ash conveying guide component (2), a flue regulating component (3), and an anti-blocking ash conveying component (4); the boiler flue ash conveying mechanism body (1) is divided into a boiler ash conveying guide component (2) for guiding ash conveying; the flue regulating component (3) is fixedly mounted on the lower end of the boiler ash conveying guide component (2); and the anti-blocking ash conveying component (4) for preventing blockage is fixedly mounted on the lower end of the flue regulating component (3).
2. The ash conveying mechanism for preventing boiler flue from being blocked during waste incineration power generation according to claim 1 is characterized by: The boiler ash guide conveying assembly (2) comprises a boiler body (201), an anti-corrosion protective layer (202), a material discharge chute (203), a supporting and stabilizing frame (204), and an ash hopper guard plate (205); the anti-corrosion protective layer (202) is fixedly connected to the inside of the boiler body (201).
3. The ash conveying mechanism for preventing boiler flue from being blocked during waste incineration power generation according to claim 2 is characterized by: A material discharge slot (203) is provided at the bottom end of the boiler body (201); a support and stabilizing frame (204) is fixedly installed at the bottom end inside the boiler body (201); and an ash hopper guard plate (205) is fixedly connected to the outside of the support and stabilizing frame (204).
4. The ash conveying mechanism for preventing boiler flue from being blocked during waste incineration power generation according to claim 1 is characterized by: The flue adjustment component (3) comprises a flue pipe (301), an adjustment slot (302), a U-shaped support frame (303), an adjustment plug plate (304), a stainless steel manual valve (305) and a connecting slot plate (306); the flue pipe (301) is fixedly mounted on the lower end of the boiler body (201); and the adjustment slot (302) is provided on the side end of the flue pipe (301).
5. The ash conveying mechanism for preventing boiler flue from being blocked during waste incineration power generation according to claim 4 is characterized by: A U-shaped support frame (303) is fixedly installed at the side end of the flue pipe (301); an adjusting plug plate (304) is arranged inside the flue pipe (301); a stainless steel manual valve (305) is fixedly connected to the side end of the adjusting plug plate (304); and a connecting groove plate (306) is fixedly installed at the lower end of the flue pipe (301).
6. The ash conveying mechanism for preventing clogging of boiler flue in waste incineration power generation according to claim 2 is characterized by: The anti-blocking ash conveying component (4) comprises an anti-blocking smoke pipe (401), a fixed support frame (402), a stainless steel electric double-layer flap valve (403), a stainless steel metal expansion joint (404) and a stainless steel ash falling pipe (405); the anti-blocking smoke pipe (401) is fixedly installed at the lower end of the connecting groove plate (306); and the fixed support frame (402) is fixedly installed at the side end of the anti-blocking smoke pipe (401).
7. The ash conveying mechanism for preventing boiler flue from being blocked during waste incineration power generation according to claim 6 is characterized by: A stainless steel electric double-layer flap valve (403) is provided at the side end of the fixed support frame (402); a stainless steel metal expansion joint (404) is fixedly connected to the lower end of the anti-blocking smoke pipe (401); and a stainless steel ash falling pipe (405) is fixedly connected to the lower end of the stainless steel metal expansion joint (404).