CN214086416U

CN214086416U - Coal feeder for power plant

Info

Publication number: CN214086416U
Application number: CN202022890231.8U
Authority: CN
Inventors: 李强; 向有丽
Original assignee: Huaneng Qinmei Ruijin Power Generation Co Ltd
Current assignee: Huaneng Qinmei Ruijin Power Generation Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-08-31
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses a feeder for power plant, including quick-witted case main part, first motor, external gas circuit and reposition of redundant personnel fumarole, machine case main part top surface has been seted up the feed inlet, and has seted up the discharge gate below quick-witted case main part, first motor axle head is connected with changes the roller, and changes the roller other end and be fixed with fixed frame, it is fixed with conveyer on the roller to change, second motor axle head is fixed with the eccentric shaft, and is provided with the balancing weight on the eccentric shaft, the spout has been seted up to the mobile device bottom surface, and the block has the slider in the spout, external gas circuit top is connected with the reposition of redundant personnel fumarole. This feeder for power plant is provided with mobile device and reposition of redundant personnel fumarole, and accessible mobile device will reposition of redundant personnel fumarole and remove under the conveyer belt to connect external gas circuit on the reposition of redundant personnel fumarole, can sweep the dust of vibrator on the conveyer belt into discharge gate, prevent that the long-term powder that falls from leading to blockking up, make the more stable and practical of device.

Description

Coal feeder for power plant

Technical Field

The utility model relates to a coal feeder technical field specifically is a coal feeder for power plant.

Background

The coal feeder is an important device of a coal pulverizing system in a coal-fired power plant, and particularly in a direct-fired coal pulverizing system, the coal feeder is used for feeding raw coal stored in a raw coal bin into a coal mill at a certain speed according to the real-time material level of the coal mill through a coal dropping pipe.

However, the coal feeder in the prior art can drop coal dust to the bottom surface of the chamber when a conveying belt is cleaned, and due to the fact that the requirement for power plant coal is large, blockage and accumulation can occur for a long time, and normal operation of the coal feeder is seriously affected. We have therefore proposed a coal feeder for power plants in order to solve the problems set out above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coal feeder for power plant to the coal feeder among the prior art that the solution above-mentioned background art provided can drop the buggy to the bin bottom surface when carrying out the conveyer belt clearance, because the demand of power plant coal is big, can produce for a long time and block up piling up, the problem of the normal operating of serious influence machine.

In order to achieve the above object, the utility model provides a following technical scheme: a coal feeder for a power plant comprises a case body, a first motor, an external gas circuit and a shunting gas orifice, wherein a feed inlet is formed in the top surface of the case body, a discharge outlet is formed in the lower portion of the case body, a twister is formed in the bottom surface of the feed inlet, a baffle is connected to the twister, an electronic weight measuring device is installed in the middle of the baffle, a rotary roller is connected to the shaft end of the first motor, a fixing frame is fixed to the other end of the rotary roller, a conveying belt is fixed to the rotary roller, a first fixing plate is fixed to the inside of the case body, a spring is connected to the lower portion of the first fixing plate, hooks are formed at two ends of the spring, a second fixing plate is fixed to the lower portion of the spring, an opening is formed in the second fixing plate, the hooks are clamped on the opening, a vibrator is fixed to the tail end of the second fixing plate, a second motor is installed in the vibrator, and an eccentric shaft is fixed to the shaft end of the second fixing plate, and the eccentric shaft is provided with a balancing weight, the top surface of the vibrator is pasted with a rubber pad, the bottom surface of the case main body is provided with a moving device, the top surface inside the moving device is fixed with a third motor, the shaft end of the third motor is provided with a gear, the tooth surface of the gear is meshed with a rack, the bottom surface of the moving device is provided with a chute, a sliding block is clamped in the chute, a slot is formed in the rear of the moving device, an external gas circuit penetrates through the slot, and the top end of the external gas circuit is connected with a shunt gas orifice.

Preferably, the baffle passes through the twister and constitutes the torsion structure under the feed inlet, and twister and baffle use the axis of feed inlet as the benchmark bilateral symmetry and set up two sets ofly.

Preferably, the conveying belt passes through a first motor and a rotating roller to form a rotating mechanism on the fixed frame, and the rotating roller is movably connected with the fixed frame.

Preferably, the bottom surface of the conveying belt and the bottom surface of the case main body are in parallel, and the top end of the conveying belt is positioned right above the discharge port.

Preferably, the vibrator forms a vibration mechanism below the conveyor belt through a second motor, an eccentric shaft and a counterweight, and the vibrator is fixed to the first fixing plate through a second fixing plate and a spring.

Preferably, the moving device makes the sliding block form a sliding mechanism on the sliding chute through a third motor, a gear and a rack, and the maximum moving distance of the moving device is the length dimension of the rack.

Compared with the prior art, the beneficial effects of the utility model are that: this feeder for power plant:

(1) the moving device and the shunting fumaroles are arranged, the shunting fumaroles can move under the conveying belt through the moving device, and the shunting fumaroles are connected with an external gas circuit, so that the vibrator can sweep dust on the conveying belt into and out of the material inlet, the blockage caused by long-term powder falling is prevented, and the device is more stable and practical;

(2) be provided with electron weight scale and twister, the function of quantitative material loading is realized to the accessible electron weight scale to the baffle makes the more practical stable of device through the automatic playback of twister after the material falls.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic side sectional view of the present invention;

FIG. 3 is a schematic view of the structure of the split-flow air injection hole of the present invention;

fig. 4 is a schematic structural view of the mobile device of the present invention;

FIG. 5 is a schematic view of the structure of the feed inlet of the present invention;

fig. 6 is a schematic structural diagram of the vibrator of the present invention.

In the figure: 1. a chassis main body; 2. a feed inlet; 3. a discharge port; 4. a twister; 5. a baffle plate; 6. an electronic weight scale; 7. a first motor; 8. rotating the roller; 9. a fixed frame; 10. a conveyor belt; 11. a first fixing plate; 12. a spring; 13. hooking; 14. a second fixing plate; 15. opening a hole; 16. a vibrator; 17. A second motor; 18. an eccentric shaft; 19. a balancing weight; 20. a rubber pad; 21. a mobile device; 22. a third motor; 23. a gear; 24. a rack; 25. a chute; 26. a slider; 27. grooving; 28. connecting an air path externally; 29. and (4) shunting the gas injection holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a coal feeder for a power plant comprises a case body 1, a feeding port 2, a discharging port 3, a twister 4, a baffle plate 5, an electronic weight measuring device 6, a first motor 7, a rotary roller 8, a fixed frame 9, a conveying belt 10, a first fixed plate 11, a spring 12, a hook 13, a second fixed plate 14, an opening 15, a vibrator 16, a second motor 17, an eccentric shaft 18, a balancing weight 19, a rubber pad 20, a moving device 21, a third motor 22, a gear 23, a rack 24, a sliding chute 25, a sliding block 26, a slot 27, an external gas circuit 28 and a shunting gas orifice 29, wherein the top surface of the case body 1 is provided with the feeding port 2, the discharging port 3 is arranged below the case body 1, the bottom surface of the feeding port 2 is provided with the twister 4, the twister 4 is connected with the baffle plate 5, the electronic weight measuring device 6 is arranged in the middle of the baffle plate 5, the shaft end of the first motor 7 is, a transmission belt 10 is fixed on the rotating roller 8, a first fixing plate 11 is fixed inside the case body 1, a spring 12 is connected below the first fixing plate 11, hooks 13 are arranged at two ends of the spring 12, a second fixing plate 14 is fixed below the spring 12, an opening 15 is arranged on the second fixing plate 14, the hook 13 is clamped on the opening 15, a vibrator 16 is fixed at the tail end of the second fixing plate 14, a second motor 17 is arranged inside the vibrator 16, an eccentric shaft 18 is fixed at the shaft end of the second motor 17, a balancing weight 19 is arranged on the eccentric shaft 18, a rubber pad 20 is adhered on the top surface of the vibrator 16, a moving device 21 is arranged on the bottom surface of the case body 1, a third motor 22 is fixed on the top surface inside the moving device 21, a gear 23 is arranged at the shaft end of the third motor 22, a rack 24 is meshed with the tooth surface of the gear 23, a sliding chute 25 is arranged on the bottom surface of the moving device 21, and a sliding block 26 is clamped in the sliding chute 25, a slot 27 is formed in the rear of the moving device 21, an external air passage 28 penetrates through the slot 27, and a shunt air hole 29 is connected to the top end of the external air passage 28.

Baffle 5 constitutes torsion structure through twister 4 under feed inlet 2, and twister 4 and baffle 5 use the axis of feed inlet 2 as the benchmark bilateral symmetry to set up two sets ofly, realize the automatic function of returning to the throne, make the device more practical.

The conveying belt 10 forms a rotating mechanism on the fixed frame 9 through the first motor 7 and the rotating roller 8, and the rotating roller 8 is movably connected with the fixed frame 9, so that the device is more stable.

The bottom surface of the conveying belt 10 and the bottom surface of the case body 1 are in parallel relation, and the top end of the conveying belt 10 is positioned right above the discharge port 3, so that the materials are prevented from scattering on the bottom surfaces.

The vibrator 16 constitutes a vibration mechanism below the conveyor belt 10 by a second motor 17, an eccentric shaft 18, and a weight 19, and the vibrator 16 is fixed to the first fixing plate 11 by a second fixing plate 14 and a spring 12, so that the residue attached to the conveyor belt 10 can be removed.

The moving device 21 makes the slider 26 constitute a sliding mechanism on the slide groove 25 by the third motor 22, the gear 23 and the rack 24, and the maximum moving distance of the moving device 21 is the length of the rack 24, so that the cleaning can be performed more completely.

The working principle is as follows: when using this feeder for power plant, at first, when carrying out the coal feeding, in the material gets into feed inlet 2 through storing up the coal bunker and dropping, later through the electronic weighing device 6 measurement weight on the baffle 5, start baffle 5 and overturn downwards after reaching certain weight and fall into conveyer belt 10 with the material on, baffle 5 twists reverse the playback through twister 4 after that, then fall on conveyer belt 10 the material through first motor 7 rotatory roller 8 with conveyer belt 10 rotate make the material fall into discharge gate 3 in, accomplish whole coal feeding step.

Then, the second motor 17 is started to rotate the eccentric shaft 18, so that the vibrator 16 sends vibration to hit the conveying belt 10 to remove residues on the conveying belt 10 to the bottom surface of the case body 1, a rubber pad 20 is arranged on the vibrator 16, the conveying belt 10 is prevented from being damaged by hammering, the service life of the conveying belt 10 is shortened, finally, the third motor 22 is started to rotate the gear 23 to engage with the rack 24, so that the moving device 21 is pushed forwards, and the flow dividing air injection hole 29 is further arranged on the moving device 21 to remove the residues on the bottom surface of the case body 1 to the discharging hole 3, namely the whole working flow. And those not described in detail in this specification are well within the skill of those in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a feeder for power plant, includes quick-witted case main part (1), first motor (7), external gas circuit (28) and reposition of redundant personnel fumarole (29), its characterized in that: the top surface of the case body (1) is provided with a feeding hole (2), a discharging hole (3) is formed below the case body (1), the bottom surface of the feeding hole (2) is provided with a twister (4), the twister (4) is connected with a baffle (5), an electronic weight measuring device (6) is installed in the middle of the baffle (5), the shaft end of a first motor (7) is connected with a rotating roller (8), the other end of the rotating roller (8) is fixed with a fixed frame (9), the rotating roller (8) is fixed with a conveying belt (10), a first fixed plate (11) is fixed inside the case body (1), a spring (12) is connected below the first fixed plate (11), two ends of the spring (12) are provided with hooks (13), a second fixed plate (14) is fixed below the spring (12), and a hole (15) is formed in the second fixed plate (14), a hook (13) is clamped on the open hole (15), a vibrator (16) is fixed at the tail end of the second fixing plate (14), a second motor (17) is installed inside the vibrator (16), an eccentric shaft (18) is fixed at the shaft end of the second motor (17), a balancing weight (19) is arranged on the eccentric shaft (18), a rubber pad (20) is pasted on the top surface of the vibrator (16), a moving device (21) is installed on the bottom surface of the case main body (1), a third motor (22) is fixed at the top surface inside the moving device (21), a gear (23) is installed at the shaft end of the third motor (22), a rack (24) is meshed with the tooth surface of the gear (23), a sliding groove (25) is formed in the bottom surface of the moving device (21), a sliding block (26) is clamped in the sliding groove (25), a slot (27) is formed in the rear portion of the moving device (21), and an external air passage (28) penetrates through the slot (27), the top end of the external air path (28) is connected with a shunt air hole (29).

2. The coal feeder for power plants of claim 1, wherein: baffle (5) constitute through twister (4) under feed inlet (2) and twist reverse the structure, and twister (4) and baffle (5) use the axis of feed inlet (2) as the benchmark bilateral symmetry to set up two sets ofly.

3. The coal feeder for power plants of claim 1, wherein: the conveying belt (10) forms a rotating mechanism on the fixed frame (9) through the first motor (7) and the rotating roller (8), and the rotating roller (8) is movably connected with the fixed frame (9).

4. The coal feeder for power plants of claim 1, wherein: the bottom surface of the conveying belt (10) is parallel to the bottom surface of the case main body (1), and the top end of the conveying belt (10) is positioned right above the discharge port (3).

5. The coal feeder for power plants of claim 1, wherein: the vibrator (16) forms a vibration mechanism below the conveying belt (10) through a second motor (17), an eccentric shaft (18) and a balancing weight (19), and the vibrator (16) is fixed with the first fixing plate (11) through a second fixing plate (14) and a spring (12).

6. The coal feeder for power plants of claim 1, wherein: the moving device (21) enables the sliding block (26) to form a sliding mechanism on the sliding groove (25) through the third motor (22), the gear (23) and the rack (24), and the maximum moving distance of the moving device (21) is the length size of the rack (24).