Dry quenching coke tank bottom gate limit switch structure
By introducing the combined structure of the trigger rod and sensor in place in the dry quenching coking tank, the problem of limit switch failure in high temperature environment is solved, flexible installation and stable control of the sensor is realized, the service life is extended, and the normal operation of the bottom gate is ensured.
Patent Information
- Application Number
- CN202422116092.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In the existing dry coke hoist system, the limit switch is prone to failure due to being in a high temperature environment for a long time, resulting in the bottom gate being unable to open normally, affecting coke discharge.
A dry-extinguishing coke tank bottom gate limit switch structure is designed, including a coke tank in-place trigger rod and sensor. The control rod and touch wheel trigger the sensor. The sensor is installed at a position away from the heat source, and automatic reset is achieved through a spring reset assembly to ensure stable opening and closing of the bottom gate.
It extends the service life of the sensor, ensures the stable operation of the bottom gate, avoids faults caused by high temperatures, and improves operation reliability.
Smart Images
Figure CN223189147U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a limit switch structure of a bottom gate of a dry coke quenching tank, belonging to the technical field of dry coke quenching tanks. Background Art
[0002] Currently, in the CDQ elevator system, the coke drum is an extremely important carrier for transporting red coke. It is mainly composed of the drum body, a moving device, and a bottom gate with two doors. The main function of the coke drum is to transport the red coke from the coke oven to the top of the CDQ furnace via the elevator moving device. When the drum reaches the designated position, it opens the bottom gate of the double door at the bottom of the drum to feed the coke into the CDQ furnace. The main control to determine whether the drum has reached the designated position is a limit switch. The limit switch needs to be fixed to the frame of the elevator moving device and is relatively close to the coke in the drum. As a result, the limit switch often malfunctions due to long-term exposure to high temperatures, making it impossible to open the bottom gate. Utility Model Content
[0003] In order to solve the technical problems existing in the prior art, the utility model provides a CDQ coke tank bottom gate limit switch structure with simple structure, reasonable design, sensor being able to be kept away from heat sources, long service life and stable operation.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is a limit switch structure for the bottom gate of a dry coke quenching coke tank, comprising a coke tank and a coke tank in-position trigger rod installed on a lifting beam, and a sensor installed on the lifting beam. A movable hole is provided on the inner wall of the coke tank, and two connecting plates are also provided on the inner wall of the coke tank. The two connecting plates are respectively located on both sides of the movable hole. A control rod is installed in the movable hole, and the control rod is rotatably installed between the two connecting plates through a pin shaft. A touch wheel is installed at one end of the control rod, and a spring reset assembly is installed at the other end.
[0005] Preferably, the spring return assembly includes a counterweight block mounted on the control rod and a connecting seat mounted on the outer wall of the coke tank, and a return spring is installed between the connecting seat and the counterweight block.
[0006] Preferably, the touch wheel is a steel wheel.
[0007] Compared with the prior art, the present invention has the following technical effects: the present invention has a simple structure and a reasonable design, and uses a swingable control lever to trigger the bottom gate switch. As the coke tank moves to the specified position, one end of the control lever touches the trigger lever to rotate, and the other end triggers the sensor to trigger the opening of the bottom gate. After the coke unloading is completed, the coke tank moves downward, and the control lever automatically resets under the action of the counterweight block and the reset spring, and the operation is simple; at the same time, the sensor is controlled by the control lever, and the installation position is more flexible, which can be kept away from heat sources, thereby extending the service life and ensuring stable opening and closing operation of the bottom gate. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural diagram of the present utility model. DETAILED DESCRIPTION
[0009] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0010] like Figure 1 As shown, a limit switch structure for the bottom gate of a dry coke quenching coke tank includes a coke tank 1, a coke tank in-position trigger rod 2 mounted on a lifting beam, and a sensor 3 mounted on the lifting beam. A movable hole is provided on the inner wall of the coke tank 1. Two connecting plates 4 are also provided on the inner wall of the coke tank 1. The two connecting plates 4 are respectively located on both sides of the movable hole. A control rod 5 is installed in the movable hole. The control rod 5 is rotatably installed between the two connecting plates 4 via a pin shaft. A touch wheel 6 is installed at one end of the control rod 5, and a spring return assembly is installed at the other end.
[0011] The utility model installs a control rod 5 on the coke tank 1. When the coke tank 1 rises, the touch wheel 6 on the end plate of the control rod 5 contacts the coke tank in-place trigger rod 2, causing the control rod 5 to rotate and the other end to rise and touch the sensor 3. At this time, the sensor 3 sends a bottom gate opening signal, and the coke tank bottom gate opens. When the coke tank 1 moves downward, the control rod 5 can automatically reset under the action of the spring reset assembly, and the control rod 5 is separated from the sensor 3, and the coke tank bottom gate is automatically closed. With this structure, the position of the sensor 3 can be flexibly installed and installed in a position away from the coke tank to avoid the stable operation of the sensor being affected by high temperature. The touch wheel 6 is made of steel, which is resistant to high temperatures and has a long service life.
[0012] The spring return assembly includes a counterweight 7 mounted on the control rod and a connecting seat 8 mounted on the outer wall of the coke tank, with a return spring 9 installed between the connecting seat 8 and the counterweight 7. The combination of the counterweight 7 and the return spring 9 ensures that the control rod 5 can be reset more flexibly and conveniently.
[0013] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims
1. A CDQ coke tank bottom gate limit switch structure, comprising a coke tank, a coke tank position trigger rod mounted on a lifting beam, and a sensor mounted on the lifting beam, characterized in that: A movable hole is provided on the inner wall of the coke can, and two connecting plates are also provided on the inner wall of the coke can. The two connecting plates are respectively located on both sides of the movable hole. A control rod is installed in the movable hole, and the control rod is rotatably installed between the two connecting plates through a pin shaft. A touch wheel is installed at one end of the control rod, and a spring reset assembly is installed at the other end.
2. The CDQ coke tank bottom gate limit switch structure according to claim 1, characterized in that: The spring return assembly includes a counterweight block installed on the control rod and a connecting seat installed on the outer wall of the coke tank, and a return spring is installed between the connecting seat and the counterweight block.
3. The CDQ coke tank bottom gate limit switch structure according to claim 1, characterized in that: The touch wheel is a steel wheel.