Coke oven coal feeding system with function of detecting operation position of coal dragging bottom plate
By setting up a pulley set and weight in the coal -furnace coal delivery system, the coordination of the wire rope and the close switch is used to achieve the reliable detection and control of the position of the coal bottom plate, which solves the problem of failure to fail the existing system.
Patent Information
- Application Number
- CN202421040484.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-14
AI Technical Summary
In the existing coke oven coal delivery system, the front and rear limit switches of the coal support base plate are prone to fail induction due to vehicle vibration or large chain shaking, resulting in inaccurate detection of the operating position of the coal support base plate.
A coking furnace coal delivery system is designed. By setting a wire rope between the pulley and the weight of the dumplings, it uses the vertical movement of the heavyweight to trigger the close switch to achieve the position detection and control of the coal bottom plate.
By stablely running the wire rope and weight, the system ensures the reliable trigger of the switch, improves the accuracy and reliability of the position detection of the coal bottom plate, and avoids the problem of failure of the limitation sensing.
Smart Images
Figure CN222411428U_ABST
Abstract
Description
[Technical field]
[0001] The utility model belongs to the technical field of coke oven coal delivery, and in particular relates to a coke oven coal delivery system with the function of detecting the running position of a coal dragging bottom plate. [Background technology]
[0002] The coal loading truck loads coal into the carbonization chamber through the coal supporting bottom plate. When the coal supporting bottom plate moves forward and backward, the front and rear limit switches installed behind the coal dragging plate are activated by induction of the large chain. However, during the transmission process of the large chain, due to the vibration of the vehicle or the shaking of the large chain, it is very easy to collide with the limit, and the limit sensing fails and does not operate; if the encoder fails, the coal dragging bottom plate is prone to overshoot and cause damage to the large chain. [Contents of the utility model]
[0003] The utility model aims to provide a coke oven coal delivery system with the function of detecting the running position of a coal-carrying bottom plate, so as to solve the problem that the front and rear limit switches of the existing coal-carrying bottom plate are prone to induction failure.
[0004] The utility model adopts the following technical scheme: a coke oven coal delivery system with the function of detecting the running position of a coal-carrying bottom plate, comprising a coal-carrying bottom plate, with coke ovens and pulley blocks respectively arranged on both sides of the coal-carrying bottom plate; the pulley block comprises a plurality of pulleys and a steel wire rope arranged between the pulleys; one end of the steel wire rope is connected to the coal-carrying bottom plate, and the other end is fixed; the middle section of the steel wire rope is connected to a counterweight, and a steel beam is vertically arranged beside the counterweight;
[0005] A first proximity switch and a second proximity switch are arranged in parallel up and down at the top of the steel beam, a third proximity switch and a fourth proximity switch are arranged in parallel up and down at the middle of the steel beam, and a fifth proximity switch and a sixth proximity switch are arranged in parallel up and down at the bottom of the steel beam;
[0006] Among them, the coal-hauling bottom plate is used for horizontal reciprocating movement to enter or leave the coke oven; it is also used to pull the wire rope to move and drive the counterweight to rise and fall;
[0007] The second proximity switch and the first proximity switch are used to be triggered before the counterweight reaches the first position and when the counterweight reaches the first position, respectively;
[0008] A third proximity switch and a fourth proximity switch, respectively configured to be triggered before the counterweight reaches the second position and when the counterweight reaches the second position;
[0009] The fifth proximity switch and the sixth proximity switch are respectively used to be triggered before the counterweight reaches the third position and when the counterweight reaches the third position.
[0010] Further, the pulley block includes a deflection fixed pulley, a first fixed pulley, a first movable pulley, a second fixed pulley and a second movable pulley arranged in sequence; one end of the steel wire rope passing through the second movable pulley is connected to the fixed end;
[0011] Among them, the first fixed pulley and the second fixed pulley are fixedly arranged and are located above the horizontal position of the first proximity switch; the first movable pulley and the second movable pulley are not fixedly arranged; the steering fixed pulley is fixedly arranged, and is used to guide the steel wire rope passing through the first fixed pulley to a horizontal state and then connect it to the coal-hauling bottom plate.
[0012] Furthermore, the first movable pulley and the second movable pulley are both fixedly connected to the counterweight, and the first movable pulley and the second movable pulley are used to rise and fall along with the movement of the wire rope, thereby pulling the counterweight to rise and fall.
[0013] Furthermore, the coal-hauling bottom plate is an L-shaped plate structure having a horizontal bottom plate and a vertical baffle; the vertical baffle is located on the side close to the pulley block, and a pair of steel wire ropes are connected to the vertical baffle; the horizontal bottom plate is used to extend into the coke oven to transport coal.
[0014] The beneficial effects of the utility model are:
[0015] 1. The utility model can convert the horizontal movement of the coal-carrying bottom plate into the vertical movement of the counterweight through the setting of the pulley group. Through the three sets of proximity switches provided in conjunction, the coal-carrying bottom plate can be triggered when it moves to the first position, the second position and the third position. The three sets of proximity switches are used to send trigger signals, and the trigger signals can be used to control the coal-carrying bottom plate to stop at the first position, the second position or the third position. After the vertical movement, the wire rope and the counterweight run very smoothly, so that the proximity switches of the coal-carrying bottom plate at the first position, the second position and the third position can be reliably triggered, and the induction is more accurate and not prone to failure.
[0016] 2. Each group of proximity switches of the utility model includes two proximity switches, one for being triggered when the coal-dragging bottom plate runs to the first position, the second position and the third position, and the other for being triggered before the coal-dragging bottom plate runs to the first position, the second position and the third position. The signal triggered before the coal-dragging bottom plate runs to the first position, the second position and the third position can be used to control the deceleration of the coal-dragging bottom plate in the first position, the second position or the third position, that is, the running speed is reduced from high speed to low speed. The advantage of this is that after deceleration, when the coal-dragging bottom plate runs to the first position, the second position and the third position, it can stop at the specified position more accurately. The first position, the second position and the third position can be specifically set according to actual needs, for example, according to the different extreme positions of the coal-dragging bottom plate, the scope of use is wider.
Brief Description of the Drawings
[0017] Figure 1 It is a structural schematic diagram of a counterweight near a first position in a coke oven coal delivery system having a function of detecting the running position of a coal-carrying bottom plate according to the utility model;
[0018] Figure 2It is a structural schematic diagram of a counterweight near the second position in a coke oven coal delivery system having the function of detecting the running position of a coal-carrying bottom plate according to the utility model;
[0019] Figure 3 It is a structural schematic diagram of a counterweight near a third position in a coke oven coal delivery system with a function of detecting the running position of a coal-carrying bottom plate according to the utility model.
[0020] Among them, 1. coke oven, 2. coal-hauling bottom plate, 3. steel wire rope, 4. steering fixed pulley, 51. first fixed pulley, 52. second fixed pulley, 61. first movable pulley, 62. second movable pulley, 7. counterweight, 8. steel beam, 9. first proximity switch, 10. second proximity switch, 11. third proximity switch, 12. fourth proximity switch, 13. fifth proximity switch, 14. sixth proximity switch, 15. fixed end. [Specific implementation method]
[0021] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.
[0022] The utility model provides a coke oven coal delivery system with the function of detecting the running position of the coal-carrying bottom plate, such as Figure 1 As shown, it comprises a coal-carrying bottom plate 2, and a coke oven 1 and a pulley block are respectively arranged on both sides of the coal-carrying bottom plate 2; the pulley block comprises a plurality of pulleys and a steel wire rope arranged between the pulleys; one end of the steel wire rope 3 is connected to the coal-carrying bottom plate 2, and the other end is fixed; the middle section of the steel wire rope 3 is connected to a counterweight 7, and a steel beam 8 is vertically arranged beside the counterweight 7;
[0023] A first proximity switch 9 and a second proximity switch 10 are arranged in parallel at the top of the steel beam 8, a third proximity switch 11 and a fourth proximity switch 12 are arranged in parallel at the middle of the steel beam 8, and a fifth proximity switch 13 and a sixth proximity switch 14 are arranged in parallel at the bottom of the steel beam 8;
[0024] The coal-hauling bottom plate 2 is used for horizontal reciprocating movement to enter or leave the coke oven 1; it is also used for pulling the steel wire rope 3 to move and drive the counterweight 7 to rise and fall;
[0025] The second proximity switch 10 and the first proximity switch 9 are used to be triggered before and when the counterweight 7 reaches the first position, respectively. The first position of the counterweight 7 corresponds to the limit position of the coal-carrying bottom plate 2 reaching the coke oven 1. Figure 1 As shown, the signal of the second proximity switch 10 can be used to prompt that the coal-dragging bottom plate 2 is about to reach the extreme position in the furnace. In practice, the coal-dragging bottom plate 2 can be slowed down first at this time; the signal of the first proximity switch 9 can be used to prompt that the coal-dragging bottom plate 2 has reached the extreme position in the furnace. In practice, the coal-dragging bottom plate 2 can stop moving at this time.
[0026] The third proximity switch 11 and the fourth proximity switch 12 are used to be triggered before and when the counterweight 7 reaches the second position, respectively. The second position of the counterweight 7 corresponds to the position where one end of the coal-carrying bottom plate 2 close to the pulley block reaches the opening of the coke oven 1. Figure 2 As shown, the signal of the third proximity switch 11 can be used to prompt that the coal-drawing bottom plate 2 is about to reach the opening of the coke oven 1. In practice, the coal-drawing bottom plate 2 can be slowed down first at this time; the signal of the fourth proximity switch 12 can be used to prompt that the coal-drawing bottom plate 2 has reached the opening of the coke oven 1. In practice, the coal-drawing bottom plate 2 can stop moving at this time.
[0027] The fifth proximity switch 13 and the sixth proximity switch 14 are used to be triggered before and when the counterweight 7 reaches the third position, respectively. The third position of the counterweight 7 corresponds to the extreme position where the coal-carrying bottom plate 2 reaches away from the coke oven 1. Figure 3 As shown, the signal of the fifth proximity switch 13 can be used to prompt that the coal-dragging bottom plate 2 is about to reach the extreme position away from the coke oven 1. In practice, the coal-dragging bottom plate 2 can be slowed down first at this time; the signal of the sixth proximity switch 14 can be used to prompt that the coal-dragging bottom plate 2 has reached the extreme position away from the coke oven 1. In practice, the coal-dragging bottom plate 2 can stop moving at this time.
[0028] In some embodiments, the pulley block includes a deflection fixed pulley 4, a first fixed pulley 51, a first movable pulley 61, a second fixed pulley 52 and a second movable pulley 62 arranged in sequence; one end of the wire rope 3 passing through the second movable pulley 62 is connected to the fixed end 15;
[0029] Among them, the first fixed pulley 51 and the second fixed pulley 52 are fixedly arranged and are located above the horizontal position of the first proximity switch 9; the first movable pulley 61 and the second movable pulley 62 are not fixedly arranged; the steering fixed pulley 4 is fixedly arranged, and is used to guide the wire rope 3 passing through the first fixed pulley 51 to a horizontal state and then connect it to the coal-hauling bottom plate 2.
[0030] In some embodiments, the first movable pulley 61 and the second movable pulley 62 are both fixedly connected to the counterweight 7, and the first movable pulley 61 and the second movable pulley 62 are used to rise and fall with the movement of the wire rope 3, thereby pulling the counterweight 7 to rise and fall.
[0031] In some embodiments, the coal-hauling bottom plate 2 is an L-shaped plate structure having a horizontal bottom plate and a vertical baffle; the vertical baffle is located on the side close to the pulley block, and the vertical baffle is connected to a pair of steel wire ropes 3; the horizontal bottom plate is used to extend into the coke oven 1 to transport coal.
[0032] The utility model discloses a method for using a coke oven coal conveying system with the function of detecting the running position of a coal-drawing bottom plate: a steel wire rope 3 is connected to a coal-drawing bottom plate 2; the coal-drawing bottom plate 2 is used for conveying coal into a coke oven 1 and also for withdrawing coal after conveying.
[0033] like Figure 1 As shown, when the coal-dragging bottom plate 2 moves into the coke oven 1, the traction wire rope drives the counterweight to rise. When the counterweight is rising and triggers the second proximity switch 10, it indicates that the counterweight is about to approach the first position. The first position corresponds to the extreme position where the coal-dragging bottom plate 2 reaches the coke oven 1. For example, the coal-dragging bottom plate 2 can be controlled to slow down at this time; when the counterweight continues to rise and triggers the first proximity switch 9, it indicates that the counterweight has reached the first position. For example, the coal-dragging bottom plate 2 can be controlled to stop moving at this time.
[0034] like Figure 2 As shown, when the coal-drawing bottom plate 2 moves outside the coke oven 1, the traction wire rope drives the counterweight to descend. When the counterweight is descending, the third proximity switch 11 is triggered, indicating that the counterweight is about to approach the second position, and the second position corresponds to the position where one end of the coal-drawing bottom plate 2 close to the pulley block reaches the opening of the coke oven 1. For example, the coal-drawing bottom plate 2 can be controlled to slow down at this time. When the counterweight continues to descend and the fourth proximity switch 12 is triggered, it indicates that the counterweight has reached the second position. For example, the coal-drawing bottom plate 2 can be controlled to stop moving at this time.
[0035] like Figure 3 As shown, the coal-carrying bottom plate 2 continues to move to a position away from the coke oven 1, and the traction wire rope drives the counterweight to continue to descend. When the counterweight is descending, the fifth proximity switch 13 is triggered, indicating that the counterweight is about to approach the third position, and the third position corresponds to the coal-carrying bottom plate 2 reaching the extreme position away from the coke oven 1. For example, the coal-carrying bottom plate 2 can be controlled to slow down at this time. When the counterweight continues to descend and the sixth proximity switch 14 is triggered, it means that the counterweight has reached the third position, for example, the coal-carrying bottom plate 2 can be controlled to stop moving at this time.
[0036] Whenever the coal-drawing bottom plate 2 stops moving and needs to be restarted, the motor for pulling the coal-drawing bottom plate can be started manually.
[0037] The utility model can convert the horizontal movement of the coal-carrying bottom plate into the vertical movement of the counterweight by setting the pulley group. The three sets of proximity switches can be triggered when the coal-carrying bottom plate moves to the first position, the second position and the third position. The three sets of proximity switches are used to send trigger signals, and the trigger signals can be used to control the coal-carrying bottom plate to stop at the first position, the second position or the third position. After the vertical movement, the wire rope and the counterweight run very smoothly, so that the proximity switches of the coal-carrying bottom plate at the first position, the second position and the third position can be reliably triggered, and the induction is more accurate and not prone to failure.
[0038] Each group of proximity switches of the utility model includes two proximity switches, one for being triggered when the coal-hauling bottom plate runs to the first position, the second position and the third position, and the other for being triggered before the coal-hauling bottom plate runs to the first position, the second position and the third position. The signal triggered before the coal-hauling bottom plate runs to the first position, the second position and the third position can be used to control the deceleration of the coal-hauling bottom plate in the first position, the second position or the third position, that is, the running speed is reduced from high speed to low speed. The advantage of this is that after deceleration, when the coal-hauling bottom plate runs to the first position, the second position and the third position, it can stop at the specified position more accurately. The first position, the second position and the third position can be specifically set according to actual needs, for example, according to the different extreme positions of the coal-hauling bottom plate, the corresponding settings have a wider range of uses.
[0039] In summary, the utility model installs a pulley block and a counterweight behind the coal-dragging bottom plate, changes the travel direction of the coal-supporting bottom plate, and installs the limit switch on both sides of the counterweight. The counterweight runs very stably, which solves the problem of the limit switch being damaged or not sensed due to vehicle vibration and large chain shaking.
Claims
1. A coke oven coal delivery system with the function of detecting the running position of the coal-carrying bottom plate, characterized in that: The invention comprises a coal-carrying bottom plate (2), wherein a coke oven (1) and a pulley block are respectively arranged on both sides of the coal-carrying bottom plate (2); the pulley block comprises a plurality of pulleys and a steel wire rope arranged between each of the pulleys; one end of the steel wire rope (3) is connected to the coal-carrying bottom plate (2), and the other end is fixed; the middle section of the steel wire rope (3) is connected to a counterweight (7), and a steel beam (8) is vertically arranged next to the counterweight (7); A first proximity switch (9) and a second proximity switch (10) are arranged in parallel up and down at the top of the steel beam (8), a third proximity switch (11) and a fourth proximity switch (12) are arranged in parallel up and down at the middle of the steel beam (8), and a fifth proximity switch (13) and a sixth proximity switch (14) are arranged in parallel up and down at the bottom of the steel beam (8); The coal-hauling bottom plate (2) is used for horizontal reciprocating movement to enter or leave the coke oven (1); it is also used for pulling the steel wire rope (3) to move and drive the counterweight (7) to rise and fall; The second proximity switch (10) and the first proximity switch (9) are respectively used to be triggered before the counterweight (7) reaches the first position and when it reaches the first position; a third proximity switch (11) and a fourth proximity switch (12), respectively used to be triggered before the counterweight (7) reaches the second position and when it reaches the second position; The fifth proximity switch (13) and the sixth proximity switch (14) are respectively used to be triggered before the counterweight (7) reaches the third position and when it reaches the third position.
2. A coke oven coal delivery system with the function of detecting the running position of the coal-carrying bottom plate according to claim 1, characterized in that: The pulley block comprises a deflection fixed pulley (4), a first fixed pulley (51), a first movable pulley (61), a second fixed pulley (52) and a second movable pulley (62) which are arranged in sequence; one end of the steel wire rope (3) passing through the second movable pulley (62) is connected to a fixed end (15); The first fixed pulley (51) and the second fixed pulley (52) are fixedly arranged and are located above the horizontal position of the first proximity switch (9); the first movable pulley (61) and the second movable pulley (62) are not fixedly arranged; the steering fixed pulley (4) is fixedly arranged and is used to guide the steel wire rope (3) passing through the first fixed pulley (51) to a horizontal state and then connect it to the coal-hauling bottom plate (2).
3. A coke oven coal delivery system with the function of detecting the running position of the coal-carrying bottom plate as claimed in claim 2, characterized in that: The first movable pulley (61) and the second movable pulley (62) are both fixedly connected to the counterweight (7). The first movable pulley (61) and the second movable pulley (62) are used to rise and fall along with the movement of the steel wire rope (3), thereby pulling the counterweight (7) to rise and fall.
4. A coke oven coal delivery system with the function of detecting the running position of the coal-carrying bottom plate according to claim 1 or 2, characterized in that: The coal-hauling bottom plate (2) is an L-shaped plate structure having a horizontal bottom plate and a vertical baffle; the vertical baffle is located on a side close to the pulley block, and the steel wire rope (3) is connected to the vertical baffle; the horizontal bottom plate is used to extend into the coke oven (1) to transport coal.