A coal conveying system
By designing crushing and screening mechanisms to handle large pieces of coal, the problem of incomplete coal combustion in the coal conveying system was solved, achieving uniform coal conveying and efficient feeding, and reducing waste and blockage risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN FUNENG LONGAN THERMAL POWER CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-26
AI Technical Summary
Existing coal conveying systems are unable to effectively handle large lumps of coal during transport, resulting in incomplete combustion and reduced conveying efficiency.
A coal conveying system including a crushing mechanism, a screening mechanism, and a feeding mechanism was designed. Large coal pieces are crushed by the cooperation of movable and fixed plates, and the coal pieces are screened by a screw conveyor and a screen plate to ensure that the coal pieces are of uniform size. The coal feed rate is precisely controlled to avoid blockage and energy waste.
It achieves uniform coal block size, ensures complete combustion of coal, reduces waste, improves coal conveying efficiency, and prevents blockage through open feeding, thus having environmental benefits.
Smart Images

Figure CN224279038U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coal conveying equipment, specifically a coal conveying system. Background Technology
[0002] During storage in coal bunkers, coal becomes increasingly sticky and clumps due to factors such as absorbing moisture from the air, oxidation from contact with air, and increased temperature. Some coal clumps are very large in diameter, making them difficult to burn and resulting in incomplete combustion.
[0003] Existing coal conveying systems typically screen coal during transport, but they do not handle large lumps of coal, requiring manual removal with the aid of equipment, which affects conveying efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a coal conveying system that can automatically process lumpy coal, making the coal lumps uniform in size and ensuring coal conveying efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A coal conveying system includes a base plate, a crushing mechanism disposed on one side of the top of the base plate, the crushing mechanism including a protective shell, one end of the protective shell being fixedly connected to the top of the base plate, a fixing plate being fixedly connected to the inner wall of one side of the protective shell, a first feed hopper being fixedly connected to the top of the protective shell, a screw conveyor disposed on one side of the crushing mechanism, a screening mechanism disposed at one end of the screw conveyor, the screening mechanism including a support block, a feeding mechanism disposed on one side of the screening mechanism, the feeding mechanism including a support frame, one end of the support frame being fixedly connected to the top of the base plate.
[0007] Furthermore, in the coal conveying system, a movable plate is provided on one side of the fixed plate, a connecting plate is fixedly connected to one side of the movable plate, a fixed shaft is fixedly and rotatably connected to one end of the connecting plate, a rotating disk is fixedly connected to one end of the fixed shaft, and a first motor is installed at one end of the rotating disk.
[0008] Furthermore, in the coal conveying system, one end of the connecting plate is fixedly connected to a connecting shaft, one end of the connecting shaft is rotatably connected to a connecting rod, one end of the connecting rod is rotatably connected to a fixing rod, and one end of the fixing rod is fixedly connected to the inner wall of one side of the protective shell.
[0009] Furthermore, in the coal conveying system, a second feed hopper is fixedly connected to the top of the support block, and a through hole is opened on one side of the second feed hopper, with a movable partition slidably connected inside the through hole.
[0010] Furthermore, in the coal conveying system, a through hole is provided on one side of the second feed hopper, and a screen plate is fixedly connected inside the through hole; a through hole is provided on the other side of the second feed hopper, and a first discharge plate is fixedly connected inside the through hole.
[0011] Furthermore, in the coal conveying system, a groove is provided on one side of the support frame, and a first sliding block is slidably connected in the groove. A through hole is provided on the top of the support frame, and a first screw is rotatably connected in the through hole. The surface of the first screw is rotatably connected to the first sliding block, and a second motor is fixedly connected to one end of the first screw.
[0012] Furthermore, in the coal conveying system, a conveyor belt is rotatably connected to one side of the first sliding block, baffles are fixedly connected to both sides of the conveyor belt, equidistant inclined baffles are fixedly connected to the top of the conveyor belt, a second discharge plate is provided on one side of the inclined baffles, and a second sliding block is rotatably connected to the other end of the conveyor belt.
[0013] Furthermore, in the coal conveying system, a fixed frame is slidably connected to one side of the second sliding block. The fixed frame has a sliding groove, and the second sliding block slides on the inner wall of the groove. A through hole is opened on one side of the fixed frame, and a second screw is rotatably connected in the through hole. One end of the second screw is rotatably connected to one side of the second sliding block, and the other end is fixedly connected to a rocker plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This coal conveying system, through the setup of a crushing mechanism, a screening mechanism, and a feeding mechanism, utilizes the cooperation between the movable plate, fixed plate, and the first motor in the crushing mechanism to crush large pieces of coal between the movable and fixed plates, ensuring uniform coal size, complete combustion, and reduced coal waste. The conveyor belt and inclined baffles in the feeding mechanism are in an open state during the feeding process, effectively preventing blockages and improving feeding efficiency. This device has a relatively simple structure, strong practicality, and is suitable for widespread application.
[0016] At the same time, by precisely controlling the amount of coal fed in, energy waste caused by excessive feeding can be avoided, which is beneficial to environmental protection. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the crushing device structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the screening device of this utility model;
[0021] Figure 5 This is a schematic diagram of the feeding device of this utility model.
[0022] Figure label:
[0023] 1. Base plate; 2. Crushing mechanism; 3. First feed hopper; 4. Screw conveyor; 5. Screening mechanism; 6. Feeding mechanism;
[0024] 201. Protective shell; 202. Fixing plate; 203. Movable plate; 204. Connecting plate; 205. Fixing shaft; 206. Rotating disk; 207. First motor; 208. Connecting shaft; 209. Connecting rod; 210. Fixing rod;
[0025] 501. Support block; 502. Second feed hopper; 503. Movable partition; 504. Screen plate; 505. First discharge plate;
[0026] 601. Support frame; 602. First sliding block; 603. First screw; 604. Second motor; 605. Conveyor belt; 606. Baffle; 607. Inclined partition; 608. Fixed frame; 609. Second sliding block; 610. Second screw; 611. Shaking plate; 612. Second feeding plate. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] like Figures 1-5 As shown, this utility model provides a coal conveying system, including a base plate 1, a crushing mechanism 2 is provided on one side of the top of the base plate 1, the crushing mechanism 2 includes a protective shell 201, one end of the protective shell 201 is fixedly connected to the top of the base plate 1, a fixing plate 202 is fixedly connected to the inner wall of one side of the protective shell 201, a first feeding hopper 3 is fixedly connected to the top of the protective shell 201, a screw conveyor 4 is provided on one side of the crushing mechanism 2, a screening mechanism 5 is provided at one end of the screw conveyor 4, the screening mechanism 5 includes a support block 501, a feeding mechanism 6 is provided on one side of the screening mechanism 5, the feeding mechanism 6 includes a support frame 601, one end of the support frame 601 is fixedly connected to the top of the base plate 1.
[0029] It should be noted that during the automatic coal conveying process, coal is first received through the first feed hopper 3, and then enters the crushing mechanism 2 for preliminary crushing. The crushed coal is then sent to the screening mechanism 5 for screening via the screw conveyor 4. The screened coal is then fed through the feeding mechanism 6. The crushing mechanism 2 crushes large pieces of coal to make the coal pieces uniform in size, ensuring that the coal is fully burned and reducing coal waste. The feeding mechanism 6 is kept in an open state during the feeding process to effectively prevent blockage and improve feeding efficiency.
[0030] like Figure 3 As shown, a movable plate 203 is provided on one side of the fixed plate 202, and a connecting plate 204 is fixedly connected to one side of the movable plate 203. A fixed shaft 205 is fixedly and rotatably connected to one end of the connecting plate 204. A rotating disk 206 is fixedly connected to one end of the fixed shaft 205. A first motor 207 is installed on one end of the rotating disk 206. A connecting shaft 208 is fixedly connected to one end of the connecting plate 204. A connecting rod 209 is rotatably connected to one end of the connecting shaft 208. A fixed rod 210 is rotatably connected to one end of the connecting rod 209. One end of the fixed rod 210 is fixedly connected to the inner wall of one side of the protective shell 201.
[0031] It should be noted that during the automatic coal conveying process, coal is first received through the first feed hopper 3. The movable plate 203 and the fixed plate 202 cooperate with each other. Then, the first motor 207 drives the rotating disk 206 to rotate at high speed. The fixed shaft 205 and the connecting plate 204 drive the movable plate 203 to rotate, so that the coal is crushed between the movable plate 203 and the fixed plate 202. The connecting shaft 208, the connecting rod 209 and the fixed rod 210 ensure the stability of the movable plate 203. The movable plate 203, the fixed plate 202 and the first motor 207 of the crushing mechanism 2 cooperate to crush large pieces of coal between the movable plate 203 and the fixed plate 202, so that the coal pieces are of uniform size, ensuring the quality of coal and reducing coal waste.
[0032] like Figure 4 As shown, a second feeding funnel 502 is fixedly connected to the top of the support block 501. A through hole is opened on one side of the second feeding funnel 502, and a movable partition 503 is slidably connected in the through hole. A sieve plate 504 is fixedly connected in the through hole on one side of the second feeding funnel 502. A first discharge plate 505 is fixedly connected in the through hole on the other side of the second feeding funnel 502.
[0033] It should be noted that during the automatic coal conveying process, coal is first received through the first feed hopper 3 and then enters the crushing mechanism 2 for crushing. The crushed coal is then fed into the second feed hopper 502 of the screening mechanism 5 via the screw conveyor 4. The moving baffle 503 can control the feeding speed. During the feeding process, larger coal pieces are discharged through the screen plate 504 for re-crushing, while smaller coal pieces enter the feeding mechanism 6 through the first feeding plate 505. By precisely controlling the amount of coal fed, energy waste caused by overfeeding is avoided, which is beneficial to environmental protection.
[0034] like Figure 5 As shown, a sliding groove is provided on one side of the support frame 601, and a first sliding block 602 is slidably connected in the groove. A through hole is provided on the top of the support frame 601, and a first screw 603 is rotatably connected in the through hole. The surface of the first screw 603 and the first sliding block 602 are rotatably connected. A second motor 604 is fixedly connected to one end of the first screw 603. A conveyor belt 605 is rotatably connected to one side of the first sliding block 602. Baffles 606 are fixedly connected to both sides of the conveyor belt 605. Equivalently spaced... A sloping partition 607 is provided on one side, and a second feeding plate 612 is provided on one side. A second sliding block 609 is rotatably connected to the other end of the conveyor belt 605. A fixed frame 608 is slidably connected to one side of the second sliding block 609. The fixed frame 608 has a sliding groove. The second sliding block 609 slides on the inner wall of the groove. A through hole is provided on one side of the fixed frame 608. A second screw 610 is rotatably connected to the through hole. One end of the second screw 610 is rotatably connected to one side of the second sliding block 609. The other end is fixedly connected to a rocker plate 611.
[0035] It is important to note that during the automatic coal conveying process, when coal enters the conveyor belt 605 of the feeding mechanism 6 from the first discharge plate 505, the second motor 604 at the top of the support frame 601 starts, driving the first screw 603 and the first sliding block 602. After the position is determined, the rocker 611 rotates, driving the second screw 610 to rotate, thereby adjusting the position of the second sliding block 609. After the height of the conveyor belt 605 is determined, the conveyor belt 605 starts, driving the inclined baffle 607 to rotate. Under the action of gravity, the coal accumulates at the lower end of the inclined baffle 607. It is blocked by the baffle 606 on one side to prevent it from falling while conveying it. Finally, it enters the next process through the second discharge plate 612. The conveyor belt 605 and the inclined baffle 607 of the feeding mechanism 6 are in an open state during the feeding process, which effectively prevents blockage and improves the feeding efficiency.
[0036] During the automatic coal conveying process, coal first enters the equipment through the first feed hopper 3 and falls into the crushing mechanism 2. Then, the first motor 207 drives the rotating disk 206 and the connecting plate 204 to rotate at high speed, causing the coal to be crushed between the movable plate 203 and the fixed plate 202. The crushed coal is then fed into the second feed hopper 502 of the screening mechanism 5 by the screw conveyor 4. The moving partition 503, in conjunction with the screen plate 504, performs secondary fine screening of the coal. When the coal enters the conveyor belt 605 of the feeding mechanism 6 from the first discharge plate 505, the conveyor belt... The inclined baffle 607 on the conveyor belt 605 can arrange the coal at equal intervals, ensuring that the coal passes evenly through the second feed plate 612 into the next process. The crushing mechanism 2 crushes large pieces of coal to make the coal pieces uniform in size, ensuring that the coal is fully burned and reducing coal waste. The screening mechanism 5 precisely controls the amount of coal fed in, avoiding energy waste caused by overfeeding, which is beneficial to environmental protection. The conveyor belt 605 and inclined baffle 607 in the feeding mechanism 6 are in an open state during the feeding process, effectively preventing blockage and improving feeding efficiency.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.
Claims
1. A coal conveying system, comprising a bottom plate (1), characterized in that: A crushing mechanism (2) is provided on one side of the top of the base plate (1). The crushing mechanism (2) includes a protective shell (201). One end of the protective shell (201) is fixedly connected to the top of the base plate (1). A fixing plate (202) is fixedly connected to the inner wall of one side of the protective shell (201). A first feeding hopper (3) is fixedly connected to the top of the protective shell (201). A screw conveyor (4) is provided on one side of the crushing mechanism (2). A screening mechanism (5) is provided at one end of the screw conveyor (4). The screening mechanism (5) includes a support block (501). A feeding mechanism (6) is provided on one side of the screening mechanism (5). The feeding mechanism (6) includes a support frame (601). One end of the support frame (601) is fixedly connected to the top of the base plate (1).
2. The coal conveying system according to claim 1, characterized in that: A movable plate (203) is provided on one side of the fixed plate (202), and a connecting plate (204) is fixedly connected to one side of the movable plate (203). A fixed shaft (205) is fixedly and rotatably connected to one end of the connecting plate (204), and a rotating disk (206) is fixedly connected to one end of the fixed shaft (205). A first motor (207) is installed on one end of the rotating disk (206).
3. A coal conveying system according to claim 2, characterized in that: One end of the connecting plate (204) is fixedly connected to a connecting shaft (208), one end of the connecting shaft (208) is rotatably connected to a connecting rod (209), one end of the connecting rod (209) is rotatably connected to a fixing rod (210), and one end of the fixing rod (210) is fixedly connected to the inner wall of one side of the protective shell (201).
4. A coal conveying system according to claim 1, characterized in that: The support block (501) is fixedly connected to the top of a second feeding funnel (502), and a through hole is provided on one side of the second feeding funnel (502), and a movable partition (503) is slidably connected in the through hole.
5. A coal conveying system according to claim 4, characterized in that: The second feeding hopper (502) has a through hole on one side, and a sieve plate (504) is fixedly connected inside the through hole. The second feeding hopper (502) has a through hole on the other side, and a first feeding plate (505) is fixedly connected inside the through hole.
6. A coal conveying system according to claim 1, characterized in that: The support frame (601) has a sliding groove on one side, and a first sliding block (602) is slidably connected in the groove. The support frame (601) has a through hole on the top, and a first screw (603) is rotatably connected in the through hole. The surface of the first screw (603) and the first sliding block (602) are rotatably connected. A second motor (604) is fixedly connected to one end of the first screw (603).
7. A coal conveying system according to claim 6, characterized in that: The first sliding block (602) is rotatably connected to a conveyor belt (605) on one side. Baffles (606) are fixedly connected to both sides of the conveyor belt (605). Equivalent inclined partitions (607) are fixedly connected to the top of the conveyor belt (605). A second feeding plate (612) is provided on one side of the inclined partition (607). The other end of the conveyor belt (605) is rotatably connected to a second sliding block (609).
8. A coal conveying system according to claim 7, characterized in that: A fixed frame (608) is slidably connected to one side of the second sliding block (609). The fixed frame (608) has a groove. The second sliding block (609) slides on the inner wall of the groove. A through hole is opened on one side of the fixed frame (608). A second screw (610) is rotatably connected in the through hole. One end of the second screw (610) is rotatably connected to one side of the second sliding block (609), and the other end is fixedly connected to a rocker plate (611).