Early warning device for inclination of coke tank
By designing a coke tank tilt warning device, PLC collects proximity switch signals to determine whether the bottom gate is tightly closed, solving the equipment damage caused by the coke tank tilt, realizing automatic detection and alarm, and improving safety and operation convenience.
Patent Information
- Application Number
- CN202421018580.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-05-11
AI Technical Summary
In dry coke quenching production, the tilt of the coke tank causes the red coke to fall to the ground, causing equipment damage. There is no technical means to detect whether the bottom gate of the coke tank is completely closed, relying on artificial visual judgment, which poses safety hazards.
Design a tilt warning device for coke tanks, including a carrier, coke tank, rotating pallet, bottom gate, proximity switch, baffle, control circuit and alarm. The proximity switch signal is collected by PLC to determine whether the bottom gate is closed tightly, and the alarm is alarmed , avoid artificial visual judgment.
It realizes automatic detection of whether the bottom gate of the coke tank is closed tightly, preventing the tilt of the coke tank and collision with the equipment, improving safety and operation convenience, and reducing the risk of equipment damage.
Smart Images
Figure CN222166114U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coke quenching devices, in particular to a coke tank tilting early warning device. Background Art
[0002] During dry quenching coke production, the tilt of the coke tank is likely to cause major production equipment accidents such as the falling of red coke. Under normal circumstances, the bottom gate is in a closed state when the coke tank falls on the carrier. Due to changes in the coal ratio and coking time, the maturity of the coke is not good. When the coke tank completes the coking action, part of the coke adheres to the bottom gate, causing the bottom gate to not be completely closed. When the coke tank falls on the carrier, the tank body tilts, and one side of the coke tank fails to fall completely into place. When the drop is large, the outer edge of the top of the coke tank is higher than the lower edge of the elevator plate hook. When the coke tank carrier starts to move away from the elevator derrick, the coke tank will collide with the elevator plate hook, damaging the coke tank, the elevator plate hook and other equipment. At present, there is no technical means to detect whether the bottom gate of the coke tank is tightly closed, and the on-duty personnel can only judge by visual inspection. Summary of the invention
[0003] The utility model aims to provide a coke tank tilting early warning device, in which a tank tilting alarm alarm sounds without the need for post personnel to make visual judgments.
[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions:
[0005] A coke tank tilt warning device comprises a carrier, a coke tank, a rotating tray, a bottom gate, a bracket, a proximity switch, a baffle, a control circuit, an alarm and a control unit. The carrier is provided with a rotating tray, a bottom gate is provided under the coke tank, the coke tank sits on the rotating tray, a baffle is fixedly installed on one side of the bottom gate, the bracket is fixedly installed on the carrier, the proximity switch is arranged at the top end of the bracket, the proximity switch and the baffle are located on the same vertical line, and the proximity switch and the alarm are respectively connected to the control unit.
[0006] The bottom gate is divided into two halves, left and right.
[0007] The bracket is L-shaped.
[0008] It also includes a control loop, and the control unit includes a power module, a CPU, a digital input module, a digital output module, and a communication module. The power module, the CPU, the digital input module, the digital output module, and the communication module are connected through a port. The input end of the power module is connected to an AC power supply. The power module is used to provide a working power supply. The digital input module is connected to a normally open contact of relay one through a port. The digital output module is linked to a coil of relay two through a port. The communication module is used to connect to an engineer station, and the control loop is connected to the control unit.
[0009] The control circuit includes branch one and branch two connected in parallel, branch one is connected to an AC power supply, branch one includes a normally open contact of a proximity switch connected in series and a coil of relay one, and branch two includes an alarm connected in series and a normally open contact of relay two.
[0010] The control unit is PLC.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. A stop iron is fixedly installed on one side of the bottom gate, and the proximity switch is set at the top of the bracket. The proximity switch and the baffle are located on the same vertical line. The proximity switch is connected to the control unit. The PLC collects the proximity switch signal and the alarm sounds. The structure is simple and easy to install.
[0013] 2. The normally open contact of the proximity switch is connected to the coil of relay KA1, and then connected to the digital input module through the normally open contact of relay KA1 for signal isolation to prevent the proximity switch signal failure from burning the digital input module;
[0014] 3. The communication module is used to connect with the engineer station, so that the operator can check the operation record of the proximity switch at any time on the engineer station. If the proximity switch signal is abnormal, the bottom gate valve gap is large and the alarm prompts, which is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is the front view of the coke tank tilt warning device.
[0016] Figure 2 It is a side view of the coke tank tilt warning device.
[0017] Figure 3 This is a schematic diagram of the electrical principle of the coke tank tilt warning device.
[0018] In the figure: 1-coke tank 2-bottom gate 3-carrier 4-rotating tray 5-bracket 6-proximity switch 7-stop iron. DETAILED DESCRIPTION
[0019] The present invention is described in detail below in conjunction with the accompanying drawings of the specification, but it should be noted that the implementation of the present invention is not limited to the following embodiments.
[0020] The following examples are implemented based on the technical solution of the utility model, and provide detailed implementation methods and specific operation processes, but the protection scope of the utility model is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.
[0021] [Example 1]
[0022] See Figure 1 , Figure 2 A coke tank 1 tilt warning device includes a carrier 3, a coke tank 1, a rotating tray 4, a bottom gate 2, a bracket 5, a proximity switch 6, a baffle, a control circuit, an alarm HL, a PLC, and a control circuit. The carrier 3 is used to carry the coke tank 1. The carrier 3 is provided with a rotating tray 4. A bottom gate 2 is provided below the coke tank 1. The bottom gate 2 is divided into two halves. The coke tank 1 sits on the rotating tray 4. A stop iron 7 is fixedly installed on one side of the bottom gate 2. The bracket 5 is fixedly installed on the carrier 3. The bracket 5 is L-shaped. The proximity switch 6 is arranged at the top of the bracket 5. The proximity switch 6 and the baffle are located on the same vertical line. Figure 3 The PLC includes a power module, a CPU, a digital input module, a digital output module, and a communication module. The power module, the CPU, the digital input module, the digital output module, and the communication module are connected through a port. The input end of the power module is connected to the AC power supply AC220V, and the output end of the power module is used to provide a working power supply DC24V. The digital input module is connected to the normally open contact of the relay KA1 through the port, and the digital output module is linked to the coil of the relay KA2 through the port. The communication module is used to connect to the engineer station. The control loop includes branch one and branch two connected in parallel. Branch one is connected to the AC power supply AC220V. Branch one includes the normally open contact of the proximity switch 6 connected in series and the coil of the relay KA1. Branch two includes the normally open contact of the alarm HL and the relay KA2 connected in series.
[0023] Working process:
[0024] See Figure 1 When the bottom gate is not closed tightly, the coke tank will tilt. There is a drop between the bottom gate point a and the bottom gate point b. The drop between the bottom gate a and the bottom gate b can be detected to determine whether the coke tank is tilted. However, the temperature at these two positions is relatively high and detection components cannot be installed. After actual investigation, it was found that when the bottom gate is not closed tightly and falls onto the trolley, there must be a gap between one side of the bottom gate and the rotating tray, and the position farthest from the bottom gate opening line on this side has the largest gap with the rotating tray. Figure 2 That is, the gap between point c and point d of the bottom gate is the largest, and the temperature at point c and point d of the bottom gate is relatively low, which is suitable for installing proximity switches and iron blocks. The distance between the proximity switch and the iron block is adjusted. When the bottom gate is closed tightly, the distance between the iron block and the proximity switch is close, and the proximity switch can send a signal. When the bottom gate is not closed tightly, the distance between the iron block and the proximity switch is far, and the proximity switch cannot send a signal. Therefore, whether the bottom gate is closed tightly can be judged by whether the PLC collects the signal of the proximity switch.
[0025] The utility model has a baffle iron fixedly installed on one side of the bottom gate, a proximity switch is arranged on the top of the bracket, the proximity switch and the baffle are located on the same vertical line, the proximity switch is connected to the control unit, the PLC collects the proximity switch signal, and the alarm sounds, the structure is simple, and the installation is convenient; the normally open contact of the proximity switch is connected to the coil of the relay KA1, and is connected to the digital input module through the normally open contact of the relay KA1, which is used for signal isolation to prevent the digital input module from being burned due to a proximity switch signal failure; the communication module is used to connect to the engineer station, so that the operating personnel can check the operation record of the proximity switch on the engineer station at any time. If the proximity switch signal is abnormal, an alarm prompts that the gap of the bottom gate valve is large, and the operation is convenient.
Claims
1. A coke tank tilt warning device, characterized in that: It includes a carrier vehicle, a coke tank, a rotating tray, a bottom gate, a bracket, a proximity switch, a baffle, a control circuit, an alarm, and a control unit. A rotating tray is provided on the carrier vehicle, a bottom gate is provided under the coke tank, the coke tank sits on the rotating tray, a baffle is fixedly installed on one side of the bottom gate, the bracket is fixedly installed on the carrier vehicle, the proximity switch is provided at the top of the bracket, the proximity switch and the baffle are located on the same vertical line, and the proximity switch and the alarm are respectively connected to the control unit.
2. The coke tank tilt warning device according to claim 1, characterized in that: The bottom gate is divided into two halves, the left and the right.
3. The coke tank tilt warning device according to claim 1, characterized in that: The bracket is L-shaped.
4. The coke tank tilt warning device according to claim 1, characterized in that: It also includes a control loop, wherein the control unit includes a power module, a CPU, a digital input module, a digital output module, and a communication module. The power module, the CPU, the digital input module, the digital output module, and the communication module are connected through a port. The input end of the power module is connected to an AC power supply. The power module is used to provide a working power supply. The digital input module is connected to a normally open contact of a relay one through a port. The digital output module is linked to a coil of a relay two through a port. The communication module is used to connect to an engineer station. The control loop is connected to the control unit.
5. The coke tank tilt warning device according to claim 2, characterized in that: The control circuit includes branch one and branch two connected in parallel, branch one is connected to an AC power supply, branch one includes a normally open contact of a proximity switch and a coil of relay one connected in series, and branch two includes an alarm and a normally open contact of relay two connected in series.
6. The coke tank tilt warning device according to claim 2, characterized in that: The control unit is a PLC.