Coal bunker feeding device for thermal power plant
By combining anti-blocking mechanisms, unblocking mechanisms, and coal scraping components, the problem of blockage and waste caused by coal adhesion during the coal bunker feeding process in thermal power plants is solved, and the safe and efficient operation of the equipment is achieved.
Patent Information
- Application Number
- CN202423257473.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-27
AI Technical Summary
In the existing technology, during the coal feeding process in thermal power plants, coal tends to stick to the inner wall of the feed hopper or the conveyor belt, leading to blockages and resource waste.
It adopts a combined design of anti-blocking mechanism, unblocking mechanism and coal scraping component. The anti-blocking mechanism prevents blockage through cam and elastic diaphragm, the unblocking mechanism uses hydraulic telescopic cylinder to drive unblocking rod to unblock, and the coal scraping component removes adhering coal blocks through scraper.
It effectively prevents clogging of the feed hopper, ensures smooth coal flow, reduces resource waste, and guarantees safe and efficient operation of the equipment.
Smart Images
Figure CN223560583U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to coal bunker feeding equipment technical field especially relates to a thermal power plant coal bunker feeding device. BACKGROUND
[0002] One of the main equipment of thermal power plant is boiler, and the main fuel of boiler is a large amount of coal. According to the requirements of relevant specifications, coal bunker is generally built in front of the boiler, i.e. in the main plant building of thermal power plant, to store coal. When coal is transported into the coal bunker, coal bunker feeding device is needed.
[0003] At present, the patent for utility model with publication number CN215438288U discloses a thermal power plant coal bunker feeding device, which comprises a meandering mounting seat, mounting grooves with open top and bottom are formed on both sides of the meandering mounting seat, conveying rollers are rotatably mounted between the front side inner wall and the rear side inner wall of the mounting groove, the same conveying belt is drivingly connected to the two conveying rollers, a driving motor is fixedly connected to the front side of the meandering mounting frame, the output shaft rear end of the driving motor is fixedly connected to the front end of the conveying roller located on the left side among the two conveying rollers, and a plurality of supporting rollers are rotatably mounted between the front side inner wall and the rear side inner wall of the meandering mounting frame. The utility model is convenient for quickly adjusting the tension of the conveying belt, does not need to disassemble the conveying roller, improves the adjustment efficiency, and is convenient for automatically cleaning the coal particles adhered to the outer side of the conveying belt during the transmission of the conveying belt, without the need for personnel to clean separately, thereby meeting the use requirements.
[0004] However, although the patent solves the problem of adjusting the tension of the conveying belt of the coal bunker feeding device, during the feeding process of the coal bunker of the thermal power plant, since the coal may contain a certain humidity, a large amount of coal may be adhered to the feeding hopper, thereby causing coal blocking or causing resource waste due to the adhesion of coal to the conveying belt. SUMMARY
[0005] Therefore, in view of the above problems, the utility model provides a thermal power plant coal bunker feeding device to solve the problem that coal is easily adhered to the inner wall of the feeding hopper or the conveying belt during the feeding process of the coal bunker of the thermal power plant.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:
[0007] A thermal power plant coal bunker feeding device, comprising a feeding mechanism, a conveying mechanism, and a discharging mechanism.
[0008] The conveying mechanism comprises a conveying belt, a pulley, a first motor, and a support; the pulley is arranged in parallel on the support, the conveying belt is wound around the periphery of the pulley, the first motor is fixedly installed on the support, and the output shaft of the first motor is fixedly connected to any pulley through the support.
[0009] The feeding mechanism comprises a feeding hopper arranged directly above the starting end of the conveying belt; mounting holes are formed in the left and right sides of the feeding hopper, and a convex shell is arranged on the mounting holes; a blocking prevention mechanism is arranged in the convex shell; the blocking prevention mechanism comprises rotating rods, cams, a second motor and elastic membranes; the rotating rods are arranged in rotation in the convex shell; at least one cam is fixedly arranged on the rotating rod; the second motor is fixedly arranged on the outer side wall of the convex shell; one end of the rotating rod is fixedly connected with the output shaft of the second motor through the convex shell; the elastic membranes are arranged on the mounting holes, and the edges of the elastic membranes are fixedly connected with the inner side wall of the feeding hopper; and the side of the cam away from the convex shell is in abutment with the elastic membrane.
[0010] A dredging mechanism is arranged on the rear side wall of the feeding hopper.
[0011] Further, the cams on the rotating rods are arranged in the direction of the long radius in a staggered manner.
[0012] Further, the dredging mechanism comprises a hydraulic telescopic cylinder, a dredging rod and a protective shell; the hydraulic telescopic cylinder is fixedly arranged on the top of the inner side wall of the feeding hopper; the output end of the hydraulic telescopic cylinder is fixedly connected with the upper end of the dredging rod; the protective shell is fixedly arranged on the inner side wall of the feeding hopper; the dredging rod penetrates through the upper and lower ends of the protective shell and is movably arranged in the protective shell.
[0013] Further, the lower end of the dredging rod is in a conical structure.
[0014] Further, the discharging mechanism comprises a collecting box and a coal scraping assembly; the collecting box is arranged directly below the end of the conveying belt.
[0015] Further, the coal scraping assembly comprises two mounting plates arranged directly above the collecting box and a plurality of scraping plates arranged between the two mounting plates; the mounting plates are fixedly arranged on the rack.
[0016] Further, the scraping plate comprises a scraping piece part and a connecting part fixedly arranged at the lower end of the scraping piece part; the upper end of the scraping piece part is in abutment with the conveying belt; the two ends of the connecting part are rotatably connected with the two mounting plates respectively; one side of each scraping plate close to the end of the conveying belt is provided with a mounting seat; the mounting seat is fixedly arranged on the mounting plate; the upper end of the mounting seat is fixedly provided with a connecting spring; and the upper end of the connecting spring is fixedly connected with the scraping piece part of the corresponding scraping plate.
[0017] By adopting the foregoing technical scheme, the present application has the following beneficial effects:
[0018] 1. The utility model discloses a prevent blocking mechanism, utilize motor to drive cam rotation, make cam hit the coal material in feed hopper constantly, prevent the phenomenon of blocking from happening, ensure that the coal material can drop in time, the rotation of cam makes the elastic film change constantly, and the stress environment of coal material changes constantly, so that the coal material on the elastic film is loose and drops, effectively avoid the problem of feed hopper internal blockage, ensure the safe operation of equipment, improve work efficiency.
[0019] 2. Through setting dredging mechanism, utilize hydraulic telescopic cylinder to drive dredging rod to do reciprocating motion, make dredging rod impact and dredge the blocked coal at the bottom of feed hopper, further improve the effect of preventing coal blocking, effectively solve the problem of feed hopper blockage in coal bunker feeding process in the prior art, and the coal is not smooth to drop, through setting protection shell, the protection shell is protected to dredging rod, prevents too much coal material from accumulating on the dredging rod, and the dredging rod cannot move.
[0020] 3. Through setting coal scraping assembly, utilize the scraper to scrape the coal block adhered on the conveyer belt, avoid the coal block not falling in time at the end of conveyer belt, and falling in the way along with the reciprocating movement of conveyer belt, reduce the waste of resources, through setting connecting spring, the elastic force of connecting spring makes the upper end of scraper and the bottom of conveyer belt adhere, to guarantee the coal scraping effect, when the coal block is too close and adheres on the surface of conveyer belt, the force exerted by coal block on the scraper can make the scraper rotate around the connecting part, so as to skip the coal block, and the next scraper continues to scrape, avoid the situation that the conveyer belt is stuck due to the scraper cannot scrape, ensure the smooth operation of equipment. ACCURACY
[0021] Figure 1 It is the structure schematic view of the utility model;
[0022] Figure 2 It is the sectional view of the utility model;
[0023] Figure 3 It is Figure 2 The enlarged view of A in
[0024] Figure 4 It is Figure 2 The enlarged view of B in
[0025] In the drawing: 11, conveyer belt; 12, pulley; 13, first motor; 14, support; 21, feed hopper; 22, mounting hole; 23, outer convex shell; 31, rotating rod; 32, cam; 33, second motor; 34, elastic film; 41, hydraulic telescopic cylinder; 42, dredging rod; 43, protection shell; 5, collection box; 61, mounting plate; 62, scraper; 621, scraper part; 622, connecting part; 63, mounting seat; 64, connecting spring. CONCRETE IMPLEMENTATION
[0026] The utility model is further illustrated in connection with the drawings and specific embodiments.
[0027] Reference Figures 1 to 4 The embodiment provides a thermal power plant coal bunker feeding device, which comprises a feeding mechanism, a conveying mechanism and a discharging mechanism.
[0028] The conveying mechanism comprises a conveying belt 11, a pulley 12, a first motor 13 and a support 14; the pulley 12 is arranged in parallel on the support 14, the conveying belt 11 is arranged around the periphery of the pulley 12, the first motor 13 is fixedly installed on the support 14, and the output shaft of the first motor 13 penetrates the support 14 and is fixedly connected with any pulley 12. The conveying mechanism can drive the coal to move, the pulley 12 is driven to rotate by the first motor 13, so that the conveying belt 11 is driven to transport the coal blocks.
[0029] The feeding mechanism comprises a feeding hopper 21, the feeding hopper 21 is arranged directly above the starting end of the conveying belt 11; mounting holes 22 are formed in the left and right sides of the feeding hopper 21, an outer convex shell 23 is arranged on the mounting hole 22, and an anti-blocking mechanism is arranged in the outer convex shell 23; the anti-blocking mechanism comprises a rotating rod 31, a cam 32, a second motor 33 and an elastic film 34, the rotating rod 31 is rotatably arranged in the outer convex shell 23, at least one cam 32 is fixedly arranged on the rotating rod 31, the second motor 33 is fixedly arranged on the outer side wall of the outer convex shell 23, one end of the rotating rod 31 penetrates the outer convex shell 23 and is fixedly connected with the output shaft of the second motor 33, the elastic film 34 is wrapped on the mounting hole 22, and the edge of the elastic film 34 is fixedly connected with the inner side wall of the feeding hopper 21, and the side, away from the outer convex shell 23, of the cam 32 abuts against the elastic film 34. The elastic film 34 is preferably made of rubber. The anti-blocking mechanism drives the cam 32 to rotate by using the motor, so that the cam 32 continuously hits the coal in the feeding hopper 21, the coal is loosened, and the blocking phenomenon is prevented; at the same time, the rotation of the cam 32 continuously deforms the elastic film 34, the stress environment of the coal continuously changes, the coal accumulated on the elastic film 34 is loosened and falls, the safe operation of the equipment is ensured, and the work efficiency is improved.
[0030] In the specific embodiment, the cams 32 on the rotating rods 31 are arranged in the direction of the long radius in a staggered manner, which is beneficial to the knocking vibration effect of the anti-blocking mechanism on the coal.
[0031] In the embodiment, a dredging mechanism is arranged on the rear side wall of the feeding hopper 21, and the dredging mechanism comprises a hydraulic telescopic cylinder 41, a dredging rod 42 and a protective shell 43.
[0032] In the embodiment, the lower end of the dredging rod 42 is in a conical structure, so as to ensure the dredging effect of the dredging rod 42.
[0033] The discharging mechanism comprises a collecting box 5 and a coal scraping assembly, and the collecting box 5 is arranged directly below the end of the conveying belt 11.
[0034] In the embodiment, the scraping plate 62 comprises a scraping piece part 621 and a connecting part 622 fixedly arranged at the lower end of the scraping piece part 621, the upper end of the scraping piece part 621 abuts against the conveying belt 11, and the two ends of the connecting part 622 are rotatably connected to the two mounting plates 61 respectively.
[0035] The working principle of the utility model is as follows:
[0036] Firstly, the coal to be transported is added into the feeding hopper 21; then, the second motor 33 drives the rotating rod 31 to rotate, so that the cam 32 on the rotating rod 31 continuously knocks the coal, so as to prevent the coal from being blocked in the feeding hopper 21; at the same time, the hydraulic telescopic cylinder 41 drives the dredging rod 42 to reciprocate, so that the dredging rod 42 impacts and dredges the discharging port of the feeding hopper 21, to ensure that the coal can smoothly fall onto the surface of the transmission belt under the action of gravity; the coal continues to move forward under the driving of the transmission belt 11, and then falls into the collecting box 5 from the end of the transmission belt 11; when the coal adsorbed on the transmission belt 11 fails to fall in time, the coal will pass through the coal scraping assembly and fall into the collecting box 5 under the scraping action of the scraping piece.
[0037] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, it should be understood by those skilled in the art that various changes can be made to the utility model in form and details without departing from the spirit and scope of the utility model defined in the appended claims, and all the changes are within the protection scope of the utility model.
Claims
1. A thermal power plant coal bunker feeding device, characterized by, Including feeding mechanism, conveying mechanism and discharging mechanism; The conveying mechanism comprises a conveying belt, a belt wheel, a first motor and a support; the belt wheel is arranged in parallel on the support, the conveying belt is arranged around the periphery of the belt wheel, and the first motor is fixedly installed on the support; the output shaft of the first motor penetrates the support and is fixedly connected with any belt wheel; The feeding mechanism comprises a feeding hopper, the feeding hopper is arranged directly above the starting end of the conveying belt; the left and right sides of the feeding hopper are both provided with mounting holes, the mounting holes are provided with convex shells, and the convex shells are provided with anti-blocking mechanisms; the anti-blocking mechanism comprises a rotating rod, a cam, a second motor and an elastic film, the rotating rod is rotatably arranged in the convex shell, at least one cam is fixedly arranged on the rotating rod, the second motor is fixedly arranged on the outer side wall of the convex shell, one end of the rotating rod penetrates the convex shell and is fixedly connected with the output shaft of the second motor, the elastic film is wrapped on the mounting hole, and the edge of the elastic film is fixedly connected with the inner side wall of the feeding hopper; the cam away from the convex shell is in abutment with the elastic film; The rear side wall of the feeding hopper is provided with a dredging mechanism.
2. A thermal power plant coal bunker feeding device according to claim 1, characterized in that, The cams on the rotating rods are arranged in different directions of the long radius.
3. A thermal power plant coal bunker feeding device according to claim 1, characterized in that, The dredging mechanism comprises a hydraulic telescopic cylinder, a dredging rod and a protective shell; the hydraulic telescopic cylinder is fixedly arranged on the top of the inner side wall of the feeding hopper, the output end of the hydraulic telescopic cylinder is fixedly connected with the upper end of the dredging rod, the protective shell is fixedly arranged on the inner side wall of the feeding hopper, and the dredging rod penetrates the upper and lower ends of the protective shell and is movably arranged in the protective shell.
4. A thermal power plant coal bunker feeding device according to claim 3, characterized in that, The lower end of the dredging rod is in a conical structure.
5. A thermal power plant coal bunker feeding device according to claim 1, characterized in that, The discharging mechanism comprises a collecting box and a coal scraping assembly, and the collecting box is arranged directly below the end of the conveying belt.
6. A thermal power plant coal bunker feeding device according to claim 5, characterized in that, The coal scraping assembly comprises two mounting plates arranged directly above the collecting box and a plurality of scraping plates arranged between the two mounting plates, and the mounting plates are fixedly arranged on the rack.
7. A thermal power plant coal bunker feeding device according to claim 6, characterized in that, The scraping plate comprises a scraping piece part and a connecting part fixedly arranged at the lower end of the scraping piece part, the upper end of the scraping piece part is in abutment with the conveying belt, and the two ends of the connecting part are rotatably connected with the two mounting plates; one side of each scraping plate close to the end of the conveying belt is provided with a mounting seat, the mounting seat is fixedly arranged on the mounting plate, the upper end of the mounting seat is fixedly provided with a connecting spring, and the upper end of the connecting spring is fixedly connected with the scraping piece part of the corresponding scraping plate.