An automatic fuel feeding device for coal-fired power generation

Abstract

The present invention discloses an automatic fuel feeding device for coal power generation, which comprises a box body. A feeding mechanism is arranged at the top of the box body, and a feeding port is arranged on the top surface of the box body. The connection part between the feeding port and the interior of the box body is communicated. The present invention relates to the technical field of coal power generation. For this automatic fuel feeding device for coal power generation, through the rotation of the rotating rod, the distance between the two expanding plates is enlarged, and the sliding rod moves. Since the tooth tracks on the surface of the sliding rod are engaged with the tooth tracks on the outer side of the sleeve, the sleeve moves. Because the threads on the surface of the threaded rods at both ends of the sleeve are arranged in opposite directions, the distance between the threaded rods at both ends of each sleeve is enlarged, which promotes the enlargement of the distance between the two moving plates, thereby enlarging the distance between the two moving plates and the expanding plates. At the same time, the operation of the moving plates and the expanding plates can reduce the blockage of materials on the box body, realizing automatic operation and automatic feeding work.

Description

Technical Field

[0001] The present invention relates to the technical field of coal power, and specifically relates to an automatic fuel feeding device for coal power. Background Technique

[0002] Many thermal power plants generate electricity using coal as the main raw material. Its feeding device is an important part of the thermal power generation system, mainly responsible for feeding the coal used as fuel into the incinerator. In the prior art, when the material moves downward through the feeding port, due to the different volumes of coal blocks, if there are coal blocks with larger volumes, they may block the feeding pipe, affecting the transportation of coal blocks. In rainy seasons and winters, the coal sludge has extremely strong viscosity and is particularly likely to block on the feeding pipe. Moreover, the diameter of the feeding pipe is fixed and cannot be changed, making it easy for coal blocks to block inside the feeding pipe and unable to achieve automatic feeding.

[0003] For example, the patent application number is CN202021615605.9, specifically an automatic fuel feeding device for coal power. The present invention can dredge the materials accumulated at the bottom of the feeding funnel to avoid blockage and affect production. The structure of the present invention is simple and easy to operate, improving production efficiency. The device is convenient and ingenious to use and is suitable for wide promotion. However, when in use, it is easy for coal blocks to block inside the feeding pipe and unable to achieve automatic feeding, thus there is a problem of affecting the transportation of coal blocks.

[0004] For example, the patent application number is CN201110072163.7, specifically a combustion furnace with fully automatic top-down fuel combustion and a furnace fuel feeding device. The present invention adopts the method of mobile replenishment and push-type feeding. Through cyclic replenishment and continuous pushing, continuous and uninterrupted fuel addition can be achieved, which can meet the continuous long-term fire demand. However, it is easy for coal blocks to block inside the feeding pipe and unable to achieve automatic feeding, thus there is a problem of affecting the transportation of coal blocks. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an automatic fuel feeding device for coal power, which solves the problem that it is easy for coal blocks to block inside the feeding pipe and unable to achieve automatic feeding, thus affecting the transportation of coal blocks.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: An automatic fuel feeding device for coal power, including a box body, a feeding mechanism is arranged at the top of the box body, a feeding port is arranged on the top surface of the box body, and the connection between the feeding port and the inside of the box body is communicated.

[0007] The feeding mechanism includes a moving plate. The number of the moving plates is two. An expanding plate is arranged between the two moving plates. The number of the expanding plates is equal to that of the moving plates. Both the expanding plate and the moving plates are located at the top of the feeding port. Sleeves are arranged on both sides of the top of the box body. Threaded rods are arranged inside both ends of each sleeve. One end of the threaded rod away from the sleeve is connected to the moving plate. A motor is arranged on the outer side of the front of the box body. A rotating rod is arranged at the end of the output shaft of the motor. The rotating rod is in transmission connection with the end of the output shaft of the motor. Push rods are arranged on both sides of the rotating rod. The push rods are movably connected to the surface of the box body.

[0008] Preferably, support rods are arranged at both ends of each sleeve. The top end of the support rod is movably connected to the sleeve. The support rod is located at the top of the box body.

[0009] Preferably, a sliding rod is arranged at the top of the sleeve. The sliding rod is fixedly connected to the expanding plate. Tooth tracks are arranged on the bottom surface of the sliding rod and the outer side of the sleeve.

[0010] Preferably, the tooth track on the surface of the sliding rod meshes with the tooth track on the outer side of the sleeve. A cross bar is arranged on the side of the push rod away from the motor.

[0011] Preferably, guide rods are arranged on one side of the bottom ends of the moving plate and the expanding plate. The number of the guide rods is multiple. All the guide rods are movably connected to the box body. The cross bar is located at the bottom of the guide rods.

[0012] Preferably, a connecting spring is arranged on one side of the push rod. A convex block is arranged on one side of the bottom end of the expanding plate.

[0013] Preferably, a connecting rod is arranged at the top of the end of the cross bar away from the motor. The connecting rod is fixedly connected to one of the guide rods.

[0014] Advantageous effects

[0015] The present invention provides an automatic fuel feeding device for coal power. Compared with the prior art, the following advantageous effects are achieved:

[0016] 1. For this automatic fuel feeding device for coal power, the rotation of the rotating rod enlarges the distance between the two expanding plates and makes the sliding rod move. Since the tooth track on the surface of the sliding rod meshes with the tooth track on the outer side of the sleeve, the sleeve moves. Because the threads on the threaded rods at both ends of the sleeve are arranged in opposite directions, the distance between the threaded rods at both ends of each sleeve is enlarged, which promotes the enlargement of the distance between the two moving plates, thereby enlarging the distance between the two moving plates and the expanding plates. At the same time, the moving plates and the expanding plates are operated, improving the working efficiency. It can reduce the blockage of materials on the box body and realize automatic operation and automatic feeding work.

[0017] 2. The automatic fuel feeding device for coal power generation is movably connected to the box body through a plurality of guiding rods, which allows the moving plate and the expanding plate to move along the guiding rods, preventing the positions of the moving plate and the expanding plate from shifting during subsequent movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a top view of the moving plate and the sleeve of the present invention;

[0020] Figure 3 is a top view of the guiding rod and the expanding plate of the present invention;

[0021] Figure 4 is a schematic diagram of the feeding mechanism of the present invention.

[0022] In the figure: 1. Box body; 2. Feeding mechanism; 201. Moving plate; 202. Expanding plate; 203. Sleeve; 204. Threaded rod; 205. Motor; 206. Rotating rod; 207. Pushing rod; 208. Support rod; 209. Sliding rod; 210. Cross bar; 211. Guiding rod; 212. Convex block; 213. Connecting rod; 3. Feeding port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-4 , the present invention provides a technical solution: an automatic fuel feeding device for coal power generation, including a box body 1, a feeding mechanism 2 is arranged on the top of the box body 1, a feeding port 3 is arranged on the top surface of the box body 1, and the connection part between the feeding port 3 and the inside of the box body 1 is communicated.

[0025] The feeding mechanism 2 includes a moving plate 201. The number of moving plates 201 is two. An expanding plate 202 is arranged between the two moving plates 201. The number of the expanding plates 202 is equal to that of the moving plates 201. Both the expanding plate 202 and the moving plate 201 are located at the top of the feeding port 3. Sleeves 203 are arranged on both sides of the top of the box body 1. Threaded rods 204 are arranged inside both ends of the sleeve 203. One end of the threaded rod 204 away from the sleeve 203 is connected to the moving plate 201. A motor 205 is arranged on the outer side of the front of the box body 1. The end of the output shaft of the motor 205 is provided with a rotating rod 206. The rotating rod 206 is in transmission connection with the end of the output shaft of the motor 205. Push rods 207 are arranged on both sides of the rotating rod 206. The push rods 207 are movably connected to the surface of the box body 1. Support rods 208 are arranged at both ends of the sleeve 203. The top end of the support rod 208 is movably connected to the sleeve 203. And the support rod 208 is located at the top of the box body 1. A sliding rod 209 is arranged at the top of the sleeve 203. The sliding rod 209 is fixedly connected to the expanding plate 202. Tooth tracks are arranged on the bottom surface of the sliding rod 209 and the outer side of the sleeve 203. The tooth track on the surface of the sliding rod 209 meshes with the tooth track on the outer side of the sleeve 203. A cross bar 210 is arranged on the side of the push rod 207 away from the motor 205. A connecting spring is arranged on one side of the push rod 207. A convex block 212 is arranged on one side of the bottom end of the expanding plate 202.

[0026] Please refer to Figure 1 and 3 , guide rods 211 are arranged on one side of the bottom ends of the moving plate 201 and the expanding plate 202. The number of the guide rods 211 is multiple. The multiple guide rods 211 are all movably connected to the box body 1. The cross bar 210 is located at the bottom of the guide rods 211. A connecting rod 213 is arranged at the top of one end of the cross bar 210 away from the motor 205. The connecting rod 213 is fixedly connected to one of the guide rods 211.

[0027] During operation, place the material between the two moving plates 201 and the two expanding plates 202. Let the material move downward through the distance between the two moving plates 201 and the expanding plates 202, and move downward through the feed inlet 3 into the interior of the box body 1. During the feeding process, the motor 205 can be used. Since the end of the output shaft of the motor 205 is drivingly connected to the rotating rod 206, the motor 205 drives the rotating rod 206 to rotate, causing the rotating rod 206 to rotate between the two push rods 207. When the rotating rod 206 turns to a horizontal state, it contacts the push plate and pushes the push rod 207 to move. Since the push rod 207 is movably connected to the outer surface of the box body 1, the movement of the push rod 207 is ensured, and the connecting spring on one side of the push rod 207 is squeezed, causing the connecting spring to deform. When the push rod 207 moves, the cross bar 210 can move simultaneously with the push rod 207, and the connecting rod 213 can move simultaneously. Since the connecting rod 213 is fixedly connected to the expanding plate 202 through a guiding rod 211, the expanding plate 202 moves, increasing the distance between the two expanding plates 202, and causing the sliding rod 209 at the top of the expanding plate 202 to move simultaneously. The tooth track at the bottom of the sliding rod 209 meshes with the tooth track on the outer side of the sleeve 203. Since the tooth track on the surface of the sliding rod 209 meshes with the tooth track on the outer side of the sleeve 203, the sleeve 203 rotates. The rotation of the sleeve 203 can cause the threaded rod 204 to move. The threads on the surface of the threaded rods 204 at both ends of the sleeve 203 are arranged in opposite directions, increasing the distance between the threaded rods 204 at both ends of each sleeve 203, pushing the distance between the two moving plates 201 to increase, thereby increasing the distance between the two moving plates 201 and the expanding plates 202, reducing the blockage of the material on the box body 1, and realizing automated operation and automated feeding work. When the sleeve 203 rotates, since the top of the support rod 208 is movably connected to the sleeve 203, the support of the sleeve 203 is realized, and the normal rotation of the sleeve 203 is ensured. When the moving plate 201 and the expanding plate 202 move, the guiding rod 211 can move to prevent the subsequent movement of the moving plate 201 and the expanding plate 202 from shifting in position.

[0028] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

Claims

1. An automatic fuel feeding device for coal power generation, comprising a box body (1), characterized in that: A feeding mechanism (2) is provided at the top of the box body (1). A feeding port (3) is provided on the top surface of the box body (1), and the connection part between the feeding port (3) and the interior of the box body (1) is in communication; The feeding mechanism (2) includes moving plates (201). The number of the moving plates (201) is two. An expanding plate (202) is arranged between the two moving plates (201). The number of the expanding plates (202) is equal to that of the moving plates (201), and both the expanding plate (202) and the moving plates (201) are located above the feeding port (3). Sleeves (203) are provided on both sides of the top of the box body (1). Threaded rods (204) are arranged inside both ends of the sleeves (203). One end of the threaded rod (204) away from the sleeve (203) is connected to the moving plate (201). A motor (205) is provided on the outer side of the front surface of the box body (1). A rotating rod (206) is arranged at the end of the output shaft of the motor (205). The rotating rod (206) is in transmission connection with the end of the output shaft of the motor (205). Push rods (207) are arranged on both sides of the rotating rod (206). The push rods (207) are movably connected to the surface of the box body (1); A sliding rod (209) is provided at the top of the sleeve (203). The sliding rod (209) is fixedly connected to the expanding plate (202). Tooth tracks are arranged on the bottom surface of the sliding rod (209) and on the outer side of the sleeve (203); The tooth track on the surface of the sliding rod (209) meshes with the tooth track on the outer side of the sleeve (203). A cross bar (210) is arranged on the side of the push rod (207) away from the motor (205).

2. The automatic fuel feeding device for coal power generation according to claim 1, characterized in that: Support rods (208) are arranged at both ends of the sleeve (203). The top end of the support rod (208) is movably connected to the sleeve (203), and the support rod (208) is located on the top of the box body (1).

3. An automatic fuel feeding device for coal power generation according to claim 1, characterized in that: Guide rods (211) are arranged at one side of the bottom ends of the moving plate (201) and the expanding plate (202). The number of the guide rods (211) is multiple. All the guide rods (211) are movably connected to the box body (1). The cross bar (210) is located below the guide rods (211).

4. A coal-electricity fuel automatic feeding device according to claim 1, characterized in that: A connecting spring is arranged on one side of the push rod (207). A convex block (212) is arranged at one side of the bottom end of the expanding plate (202).

5. The automatic fuel feeding device for coal power generation according to claim 3, characterized in that: A connecting rod (213) is arranged at the top of the end of the cross bar (210) away from the motor (205). The connecting rod (213) is fixedly connected to one of the guide rods (211).

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