Coke oven residual coal cleaning and conveying device

Abstract

The utility model belongs to the technical field of residual coal cleaning, and particularly discloses a coke oven residual coal cleaning and conveying device which comprises a coal conveying layer, a bucket elevator and a coal discharging layer, a lower coal bucket is connected to the lower end of the bucket elevator and located on the coal conveying layer, a spiral conveying machine is arranged at the bottom end of the lower coal bucket, an upper coal bucket is arranged at the upper end of the bucket elevator and located on the coal discharging layer, and the coal discharging layer is arranged on the coal discharging layer. A connecting rod is arranged on the upper coal bucket, a working platform fixedly penetrates through the top end of the bucket elevator, a chute is arranged at the joint of the bucket elevator and the upper coal bucket, a coal sealing plate is arranged on the upper coal bucket, a switch is arranged on the coal discharging layer, the coal sealing plate is electrically connected with the switch, a high-low level gauge is arranged on the upper coal bucket, and an audible and visual alarm is arranged on the connecting rod. The bucket elevator, the spiral conveyor, the high level gage, the low level gage and the audible and visual alarm are all electrically connected with the PLC control end; in the transportation process, the residual coal is conveyed in a closed mode, the field environment can be improved, automatic conveying of a PLC control system is achieved, the field working intensity is lowered, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of surplus coal cleaning, in particular to a cleaning and conveying device for surplus coal in a coke oven. Background Art

[0002] In coking production, a certain amount of surplus coal will be carried out during the coal leveling process of the coke pusher. These surplus coals are pre-collected in the surplus coal hopper of the coke pusher. When the surplus coal hopper is full, the coke pusher discharges the surplus coal into the hopper of the surplus coal elevator arranged on the coke oven floor, and the surplus coal elevator sends it into the coal tower for recycling. The current surplus coal lifting device consists of a hopper, a feeder and a belt. A discharge port is arranged under the hopper, and a screw feeder and a lifting belt are connected to it. During the process, coal ash is very easy to adhere to the hopper wall. After accumulating too thick for a long time, it directly affects the discharging, resulting in the overflow of surplus coal, polluting the environment and wasting resources. At this time, it is necessary to shut down the surplus coal lifting device and carry out manual shoveling, which destroys the continuity of production; at the same time, the surplus coal slides down under the action of gravity, often causing the surplus coal in the lifting belt to overflow; the lifting belt needs to be replaced regularly, which affects the discharging of surplus coal by the coke pusher, thus affecting the stability and continuity of coke oven production.

[0003] The Chinese utility model patent with the publication number of CN209291572U and the application number of 201822029109.4 discloses a single-hopper surplus coal elevator, which includes a lifting device, an upper coal hopper, a track guide frame, a lower coal hopper, a single-hopper trolley, a tipping chute and a return pipe. The return pipe sends the collected surplus coal to the lower hopper, and then sends it to the single-hopper trolley through the tipping chute; when the surplus coal in the single-hopper trolley is collected enough, the lifting device is automatically started, and the single-hopper trolley is pulled along the track guide frame to the top, and the single-hopper trolley automatically turns over to pour all the surplus coal in it into the upper coal hopper; when the single-hopper trolley is emptied of surplus coal, it automatically returns to the bottom along the track guide frame and is automatically docked with the lower coal hopper through the tipping chute to continue to receive surplus coal.

[0004] This patent solves the problems of difficult recovery of surplus coal, overflow of surplus coal, environmental pollution and resource waste, but in the actual operation process, there is still a problem that the coal quantity in the coal hopper cannot be monitored in real time. When the coal quantity reaches the maximum value and surplus coal is still input into it, there will be an excess of coal quantity, resulting in the overflow of coal materials. Content of the Utility Model

[0005] The purpose of the utility model is to provide a cleaning and conveying device for surplus coal in a coke oven to solve the problem that the coal quantity in the coal hopper cannot be monitored in real time. When the coal quantity reaches the maximum value and surplus coal is still input into it, an excess of coal quantity occurs, resulting in the overflow of coal materials.

[0006] To achieve the above object, the basic solution provided by the present utility model is: a coke oven surplus coal cleaning and conveying device, including a coal conveying layer, a bucket elevator and a coal discharging layer. A lower coal hopper is connected to the lower end of the bucket elevator, and the lower coal hopper is located on the coal conveying layer. An upper coal hopper is provided at the upper end of the bucket elevator, and the upper coal hopper is located on the coal discharging layer. A connecting rod is provided on the upper coal hopper. The top of the bucket elevator is fixedly penetrated with a working platform. A chute is provided at the connection between the bucket elevator and the upper coal hopper. A coal sealing plate is provided on the upper coal hopper. A high-level gauge and a low-level gauge are provided on the upper coal hopper. An audible and visual alarm is provided on the connecting rod. Both the high-level gauge and the low-level gauge are electrically connected to the audible and visual alarm.

[0007] The working principle of the present utility model is as follows: The coal transport trolley transports the collected surplus coal to the lower coal hopper and pours it into the lower coal hopper. The surplus coal is input into the bucket elevator through the bottom channel and transported upward by the bucket elevator to the head of the bucket elevator, and then slides into the upper coal hopper from the chute, and the coal is successively piled up in the upper coal hopper. When the coal quantity reaches the high-level gauge, the high-level gauge transmits a signal to the audible and visual alarm, and the alarm sounds. The staff closes the bucket elevator and stops transporting coal into the upper coal hopper. After the coal transport trolley stops stably at the mouth of the upper coal hopper, the staff opens the coal sealing plate, and the coal falls into the coal transport trolley. After the coal quantity is unloaded to the low-level gauge, the low-level gauge transmits a signal to the audible and visual alarm, and the alarm stops. The staff closes the coal sealing plate and opens the bucket elevator to continue a new round of coal transport work.

[0008] The beneficial effects of the present utility model are as follows: By using the high and low level gauges to real-time monitor the coal quantity height in the upper coal hopper, automatic monitoring is realized, reducing the labor intensity of the staff, preventing the situation of coal accumulation and overflow caused by excessive coal quantity, realizing the controllability of the coal transport volume, and the audible and visual alarm provides coal transport information for the staff, avoiding the situation of incorrect information transmission and improving the coal transport efficiency.

[0009] Solution two, this is the optimization of the basic solution. A screw conveyor is provided at the bottom end of the lower coal hopper. The screw conveyor can play the role of breaking large particle coal materials and screening and blocking large foreign objects during the coal transportation process of the lower coal hopper.

[0010] Solution three, this is the optimization of solution two. A switch is provided on the coal discharging layer, and the coal sealing plate is electrically connected to the switch. Using the switch to control the opening and closing of the coal sealing plate reduces the labor intensity of the staff and is convenient and fast during the coal unloading process.

[0011] Solution 4, which is the optimization of Solution 2. The bucket elevator, screw conveyor, high-level meter, low-level meter, and audible and visual alarm are all electrically connected to the PLC control terminal. The on-site machinery operation is remotely controlled through the PLC control terminal. When the high-level meter detects the coal material signal, the PLC control system transmits signals to the bucket elevator and the screw conveyor to make them stop automatically. When the coal material drops to the low-level meter, the PLC control system transmits signals to the bucket elevator and the screw conveyor, and they continue to work. This process improves the on-site work efficiency and reduces the labor intensity.

[0012] Solution 5, which is the optimization of the basic solution. A protective fence is hinged at the opening of the coal discharge hopper. The protective fence is opened when the surplus coal is input into the coal discharge hopper and closed after the input is completed to prevent people or other objects from falling into the coal discharge hopper.

[0013] Solution 6, which is the optimization of the basic solution. A ladder is provided on the coal conveying layer, and the free end of the ladder is fixedly connected to the working platform. The ladder is set up to facilitate the staff to reach the working platform for equipment maintenance. Brief Description of the Drawings

[0014] Figure 1 is the three-dimensional view of a coke oven surplus coal cleaning and conveying device of the present utility model after installation;

[0015] Figure 2 is the three-dimensional view of another angle of a coke oven surplus coal cleaning and conveying device of the present utility model after installation;

[0016] Figure 3 is the front view of a coke oven surplus coal cleaning and conveying device of the present utility model;

[0017] Figure 4 is the side view of a coke oven surplus coal cleaning and conveying device of the present utility model;

[0018] Figure 5 is Figure 4 the partial enlarged view at A in Detailed Description of the Preferred Embodiment

[0019] The present utility model will be further described in detail through the following specific embodiments:

[0020] The reference numerals in the accompanying drawings of the specification include: 1. coal conveying layer, 2. bucket elevator, 3. coal discharging layer, 4. coal discharge hopper, 5. coal feeding hopper, 6. connecting rod, 7. working platform, 8. chute, 9. coal sealing plate, 10. high-level meter, 11. low-level meter, 12. audible and visual alarm, 13. screw conveyor, 14. switch, 15. protective fence, 16. ladder.

[0021] Embodiment

[0022] The embodiment is basically as shown in the attached Figure 1 to the attached Figure 5Shown: A clean conveying device for surplus coal in a coke oven, including a coal conveying layer 1, a bucket elevator 2 and a coal discharging layer 3. The lower end of the bucket elevator 2 is connected with a coal hopper 4. The coal hopper 4 is located on the coal conveying layer 1. A screw conveyor 13 is provided at the bottom end of the coal hopper 4. A guardrail 15 is hinged at the opening of the coal hopper 4. The upper end of the bucket elevator 2 is provided with a coal loading hopper 5. The coal loading hopper 5 is located on the coal discharging layer 3. A connecting rod 6 is provided on the coal loading hopper 5. The top of the bucket elevator 2 is fixedly penetrated with a working platform 7. A ladder 16 is provided on the coal conveying layer 1. The free end of the ladder 16 is fixedly connected with the working platform 7. A chute 8 is provided at the connection between the bucket elevator 2 and the coal loading hopper 5. A coal sealing plate 9 is provided on the coal loading hopper 5. A switch 14 is provided on the coal discharging layer 3. The coal sealing plate 9 is electrically connected with the switch 14. A high-level gauge 10 and a low-level gauge 11 are provided on the coal loading hopper 5. An audible and visual alarm 12 is provided on the connecting rod 6. Both the high-level gauge 10 and the low-level gauge 11 are electrically connected with the audible and visual alarm 12. The bucket elevator 2, the screw conveyor 13, the high-level gauge 10, the low-level gauge 11 and the audible and visual alarm 12 are all electrically connected with the PLC control terminal.

[0023] The implementation mode of this embodiment is as follows:

[0024] During the surplus coal conveying process, first, the coal transport trolley transports the surplus coal to the coal hopper 4. The staff opens the guardrail 15 and inputs the surplus coal into the coal hopper 4, and then closes the guardrail 15. The coal material is transported downward through the screw conveyor 13 into the bucket elevator 2, transported upward through the bucket elevator 2 to the end of the bucket elevator 2, and then slides into the coal loading hopper 5 through the chute 8. Through continuous coal conveying work, the surplus coal accumulates in the coal loading hopper 5. When it accumulates to the height of the high-level gauge 10, the high-level gauge 10 transmits a signal to the audible and visual alarm 12, and the audible and visual alarm 12 gives an alarm to remind the staff to go to unload the coal. At the same time, the high-level gauge 10 transmits a signal to the PLC control terminal. After receiving the signal, the PLC control terminal transmits a stop signal to the screw conveyor 13 and the bucket elevator 2. After receiving the signal, the screw conveyor 13 stops. After receiving the signal, the bucket elevator 2 delays for a few seconds and stops after finishing inputting the surplus coal in the system. Then the staff parks the coal pulling trolley directly below the coal loading hopper 5. The staff presses the switch 14 to open the coal sealing plate 9 and starts the coal unloading work. When the coal quantity in the coal loading hopper 5 drops to the low-level gauge 11, the low-level gauge 11 transmits a signal to the audible and visual alarm 12, and the audible and visual alarm 12 stops the alarm. The staff presses the switch 14 to close the coal sealing plate 9. At the same time, the low-level gauge 11 transmits a signal to the PLC control terminal. After receiving the signal, the PLC control terminal transmits a start signal to the screw conveyor 13 and the bucket elevator 2. After receiving the signal, the screw conveyor 13 and the bucket elevator 2 start to work, and a new round of surplus coal conveying work can be carried out; when the equipment needs to be repaired and maintained, the staff can go up to the working platform 7 through the ladder 16 to repair the equipment.

[0025] The above are only the embodiments of the present utility model, and common general knowledge such as specific structures and characteristics known in the solutions is not described in detail herein. It should be noted that for those skilled in the art, without departing from the structure of the present utility model, several modifications and improvements can be made, and these should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicality of the patent. The protection scope required by this application shall be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A clean conveying device for surplus coal in a coke oven, characterized in that, It includes a coal conveying layer (1), a bucket elevator (2) and a coal discharging layer (3). The lower end of the bucket elevator (2) is connected with a coal hopper (4), the coal hopper (4) is located on the coal conveying layer (1), the upper end of the bucket elevator (2) is provided with a coal loading hopper (5), the coal loading hopper (5) is located on the coal discharging layer (3), a connecting rod (6) is arranged on the coal loading hopper (5), the top of the bucket elevator (2) is fixedly penetrated by a working platform (7), a chute (8) is arranged at the connection between the bucket elevator (2) and the coal loading hopper (5), a coal sealing plate (9) is arranged on the coal loading hopper (5), a high-level gauge (10) and a low-level gauge (11) are arranged on the coal loading hopper (5), an audible and visual alarm (12) is arranged on the connecting rod (6), and the high-level gauge (10) and the low-level gauge (11) are both electrically connected with the audible and visual alarm (12).

2. The clean coal conveying device for the surplus coal of the coke oven according to claim 1, characterized in that A screw conveyor (13) is arranged at the bottom end of the coal hopper (4).

3. The coke oven surplus coal cleaning and conveying device according to claim 2, characterized in that, A switch (14) is arranged on the coal discharging layer (3), and the coal sealing plate (9) is electrically connected with the switch (14).

4. The clean coal conveying device for coke oven surplus coal according to claim 2, wherein, The bucket elevator (2), the screw conveyor (13), the high-level gauge (10), the low-level gauge (11) and the audible and visual alarm (12) are all electrically connected with the PLC control terminal.

5. The clean coal conveying device for coke oven surplus coal according to claim 1, wherein, A protective fence (15) is hinged at the opening of the coal hopper (4).

6. The clean coal conveying device for the surplus coal of the coke oven according to claim 1, wherein, A ladder (16) is arranged on the coal conveying layer (1), and the free end of the ladder (16) is fixedly connected with the working platform (7).

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