Coke discharging chute with anti-blocking limiting plate
By installing anti-blocking limit plates and a PLC control system in the coke discharge chute, the problem of coke discharge chute blockage is solved, ensuring the safe operation of the equipment and the continuity of production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广西钢铁集团有限公司
- Filing Date
- 2025-05-12
- Publication Date
- 2026-06-05
AI Technical Summary
Existing coke discharge chutes are prone to conveyor belt wear and equipment damage due to coke blockage. Manual inspection is inefficient and cannot detect and deal with blockages in a timely manner.
An anti-blocking limit plate is installed in the coke discharge chute, equipped with a limit switch and a PLC controller to automatically detect material blockage and control the conveyor belt and vibrating feeder to stop running, preventing the blockage from worsening.
It enables timely automatic detection and shutdown of material blockage in the coke discharge chute, avoiding damage to the conveyor belt and equipment, and ensuring production order.
Smart Images
Figure CN224324611U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coke transportation equipment, and in particular to a coke discharge chute with an anti-blocking limiting plate. Background Technology
[0002] A coke discharge chute is a device used to guide and transport coke, commonly used in coking plants and related industrial fields. A coke discharge chute is generally a trough-shaped structure welded from steel plates. One end connects to the coke oven's discharge port, and the other end aligns with the conveyor belt. The coke oven's vibrating feeder discharges coke from the discharge port, and after passing through the chute, it falls onto the conveyor belt and is transported away. However, coke is prone to clogging when passing through the chute for several reasons: 1. When the coke is too large or irregularly shaped, it can easily get stuck together or become jammed against the chute wall, causing blockage; 2. When powdery coke accumulates to a certain extent, it can easily pile up in the chute, affecting the overall flowability of the coke; 3. Abnormal moisture content in the coke. When the moisture content is too high, the coke becomes more sticky and easily sticks together, preventing normal flow in the chute. When the moisture content is too low, the coke becomes brittle and easily produces powder during transportation, also increasing the risk of clogging.
[0003] When a blockage occurs in the coke discharge chute, the conveyor belt transport must be stopped immediately to prevent uneven coke accumulation on the belt, which could cause wear and tear on the conveyor belt and rollers, or even breakage of the belt, damage to the motor, reducer, and other equipment. Currently, blockages are detected through manual inspection. When an abnormal distribution of coke falling from the coke discharge chute onto the conveyor belt is observed, it indicates a blockage, and immediate clearing is required. However, manual inspection is inefficient, and blockages may not be detected in time. Once a delay occurs, the blockage will worsen, and a significant amount of manpower and resources will be needed to clear the blocked area on the conveyor belt, seriously affecting production. Utility Model Content
[0004] The purpose of this invention is to provide a coke discharge chute with an anti-clogging limiting plate, which can solve the problem that manual inspection cannot detect material blockage in the coke discharge chute in time, resulting in uneven coke accumulation on the conveyor belt, which in turn leads to wear of the conveyor belt and rollers.
[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: This coke discharge chute with an anti-blocking limiting plate includes a coke discharge chute body, which includes a feeding channel connected to the coke oven discharge port and a discharge channel connected to the bottom of the feeding channel. The outlet of the discharge channel is located above the conveyor belt. The discharge channel has an installation port on its side wall. The installation port is provided with an anti-blocking limiting plate that can be opened to the outside of the discharge channel. The anti-blocking limiting plate protrudes into the discharge channel in an arc shape. A limit switch is provided on the outside of the anti-blocking limiting plate. The signal output terminal of the limit switch is connected to the input terminal of a PLC controller. The control output terminal of the PLC controller is connected to the control motor of the conveyor belt and the control motor of the vibrating feeder.
[0006] A more specific technical solution than the above-mentioned technical solution is that the top of the anti-blocking limiting plate is hinged to the discharge channel through a first hinge member.
[0007] Furthermore, there is one feeding channel and two discharging channels.
[0008] Furthermore, a flap is provided between the inlets of the two discharge channels for adjusting the coke running path.
[0009] Furthermore, the flap is hinged to the wall of the coke discharge chute body via a second hinge.
[0010] Furthermore, the flap is controlled to rotate by a hydraulic electric valve.
[0011] Furthermore, the first hinge is a hinge, and the second hinge is a hinge shaft.
[0012] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:
[0013] In use, coke is discharged from the coke oven outlet and enters the coke discharge chute. After passing through the feed channel and discharge channel, it falls onto the conveyor belt and is transported away. If a blockage occurs in the coke discharge chute, the coke will push the anti-blockage limit plate outward. The anti-blockage limit plate contacts the limit switch, which triggers a blockage signal and transmits it to the PLC controller. After receiving the signal, the PLC controller controls the conveyor belt and vibrating feeder to stop running. Operation can resume after the blockage is manually cleared. The anti-blockage limit plate protrudes into the discharge channel in an arc shape, increasing the contact area between the coke and the anti-blockage limit plate. This prevents the coke from forming a relatively stable structure with the chute wall when blocked, thus preventing the blockage signal from being triggered. This invention can promptly report the blockage situation in the coke discharge chute and automatically stop the machine, preventing the blockage from worsening. This prevents uneven coke accumulation on the conveyor belt from causing wear on the conveyor belt and rollers, or even breaking the belt, damaging the motor, reducer, and other equipment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation
[0015] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model; however, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0016] like Figure 1 The coke discharge chute shown includes a coke discharge chute body, which includes a feed channel 1 and two discharge channels 2. The feed channel 1 is connected to the coke oven discharge port, and the discharge channels 2 are connected to the bottom of the feed channel. The outlets of the two discharge channels 2 are respectively located above the corresponding conveyor belts 3. The discharge channels 2 have an installation port on their side wall, and the installation port is equipped with an anti-blocking limit plate 4 that can be opened to the outside of the discharge channel 2. The top of the anti-blocking limit plate 4 is hinged to the discharge channel 2 through a first hinge. The anti-blocking limit plate 4 protrudes into the discharge channel 2 in an arc shape. A limit switch 5 is provided on the outside of the anti-blocking limit plate 4. The signal output terminal of the limit switch 5 is connected to the input terminal of the PLC controller. The control output terminal of the PLC controller is connected to the control motor of the conveyor belt 3 and the control motor of the vibrating feeder.
[0017] A flap 6 for adjusting the coke running path is provided between the inlets of the two discharge channels 2. The flap 6 is hinged to the wall of the coke discharge chute body through a second hinge. The flap 6 is controlled to rotate by a hydraulic electric valve.
[0018] In this embodiment, the first hinge is a hinge, and the second hinge is a hinge shaft. The first and second hinges can also be other components with the same function in the prior art.
[0019] In use, coke is discharged from the coke oven outlet and enters the coke discharge chute body. After passing through the feed channel 1 and the discharge channel 2, it falls onto the conveyor belt 3 and is transported away. If a blockage occurs in the coke discharge chute, the coke will push the anti-blockage limit plate 4 outward. The anti-blockage limit plate 4 contacts the limit switch 5, which triggers a blockage signal and transmits it to the PLC controller. After receiving the signal, the PLC controller controls the conveyor belt 3 and the vibrating feeder to stop running. Operation can be resumed after the blockage is manually cleared. The anti-blockage limit plate 4 protrudes into the discharge channel 2 in an arc shape, increasing the contact area between the coke and the anti-blockage limit plate 4. This prevents the coke from forming a relatively stable structure with the chute wall plane when there is a blockage, thus preventing the blockage signal from being triggered. This invention can promptly report the blockage situation in the coke discharge chute and automatically stop the machine to avoid aggravating the blockage. This prevents uneven coke accumulation on the conveyor belt from causing wear on the conveyor belt and rollers, or even breaking the belt, damaging the motor, reducer, and other equipment.
[0020] When conveyor belt 3 needs maintenance, the flip plate 6 can be used to adjust the running path of the coke, so that the coke falls onto one of the conveyor belts, thereby allowing the other conveyor belt to be maintained. Maintenance can be carried out without stopping the coke discharge, ensuring normal production order.
[0021] The anti-blocking limit plate 4 can be set in specific positions and quantities according to the size and shape of the coke discharge chute body or other actual conditions.
Claims
1. A coke discharge chute with an anti-clogging limiting plate, characterized in that: The system includes a coke discharge chute body, which includes a feed channel connected to the coke oven discharge port and a discharge channel connected to the bottom of the feed channel. The outlet of the discharge channel is located above the conveyor belt. The discharge channel has an installation port on its side wall, and the installation port is equipped with an anti-blocking limit plate that can be opened to the outside of the discharge channel. The anti-blocking limit plate protrudes into the discharge channel in an arc shape. A limit switch is provided on the outside of the anti-blocking limit plate. The signal output terminal of the limit switch is connected to the input terminal of a PLC controller. The control output terminal of the PLC controller is connected to the control motor of the conveyor belt and the control motor of the vibrating feeder.
2. The coke discharge chute with anti-blocking limiting plate according to claim 1, characterized in that: The top of the anti-blocking limiting plate is hinged to the discharge channel via a first hinge member.
3. The coke discharge chute with anti-blocking limiting plate according to claim 2, characterized in that: There is one feeding channel and two discharging channels.
4. The coke discharge chute with anti-blocking limiting plate according to claim 3, characterized in that: A flap is provided between the inlets of the two discharge channels for adjusting the coke running path.
5. The coke discharge chute with anti-blocking limiting plate according to claim 4, characterized in that: The flap is hinged to the wall of the coke discharge chute body via a second hinge.
6. The coke discharge chute with anti-blocking limiting plate according to claim 5, characterized in that: The flap is controlled to rotate by a hydraulic electric valve.
7. The coke discharge chute with anti-blocking limiting plate according to claim 6, characterized in that: The first hinge is a hinge, and the second hinge is a hinge shaft.