Grate plate tilting detection device of chain grate machine

Abstract

The utility model relates to the technical field of chain grate machines, in particular to a chain grate machine grate plate tilting detection device which comprises a through shaft, proximity switches and detection plates, the through shaft is arranged above the tail portion of a chain grate machine, linkage inner sleeves are arranged on the through shaft, and a plurality of detection plates are fixedly connected with the corresponding linkage inner sleeves respectively. The detection plates are in one-to-one correspondence with chain links of a running chain, the proximity switches are fixedly connected with the supports, the supports are arranged at the two ends of a grate plate of a tail wheel of the chain grate, and the proximity switches are connected with the control unit. The detection device has the advantages that in the normal operation process of the chain grate machine, the detection device can timely find that the grate plate of the chain grate machine is warped, the efficient operation of the chain grate machine is ensured, and the operation rate of the chain grate machine is improved; the linkage inner sleeve is arranged on the through shaft and is an accessory of the running chain, so that additional processing is not needed; the camera is connected with the display screen through the hard disk video recorder, an operator can monitor the tilting state of a grate plate and the tilting and breaking state of a chain link at any time through the display screen, and manual on-site inspection is not needed.

Description

Technical Field

[0001] This utility model relates to the field of chain grate machine technology, and in particular to a chain grate machine grate plate warping detection device. Background Technology

[0002] The chain grate machine is a crucial piece of equipment in the pellet production process, responsible for the drying and preheating steps. Its working principle involves evenly distributing green pellets onto the grate bed at the tail end of the chain grate, which then sequentially passes through a forced-draft drying section and a preheating section. Gases of varying temperatures vertically pass through the material layer to heat the green pellets, completing the dehydration, preheating, and oxidation processes. However, in actual operation, the chain grate plates may warp, causing the chain grate machine to stop and production to cease, severely impacting pellet output and quality. Furthermore, the malfunction can spread and damage surrounding components, significantly increasing maintenance costs and time.

[0003] Currently, many manufacturing plants rely primarily on manual inspections for monitoring. However, manual inspections have drawbacks: inspectors cannot monitor the operation of the chain grate machine's tail section around the clock, causing the grate plates to warp before being detected even when the damage is severe. This necessitates urgent improvement. Utility Model Content

[0004] The purpose of this invention is to provide a grate tilting detection device for chain grate machines, which eliminates the need for manual inspection and can detect the operating status of the tail grate of the chain grate machine in real time, thereby improving detection accuracy and preventing the escalation of accidents.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A grate tilting detection device for a chain grate machine includes a through shaft, a proximity switch, and detection plates. The through shaft is located above the tail end of the chain grate machine and has connecting sleeves. Several detection plates are fixedly connected to corresponding connecting sleeves, and each detection plate corresponds one-to-one with a link of the running chain. The proximity switch is fixedly connected to a bracket, which is located at both ends of the grate of the tail wheel of the chain grate machine. The proximity switch is connected to a control unit.

[0007] The feeding plate is located above the tail of the chain grate machine and is used to feed the chain grate machine body. A through shaft bracket is fixedly connected to the feeding plate, and multiple hooks are fixedly connected to the through shaft bracket. The through shaft hooks are hung on the through shaft bracket.

[0008] The inner sleeve of the connector is attached to the through shaft.

[0009] The detection device also includes a camera, which is fixedly connected to the bracket, connected to the hard disk recorder via a port, and connected to the display screen via a port. The camera is used to display the operating status of the chain grate.

[0010] The proximity switch corresponds to the tilted detection plate.

[0011] It also includes an alarm, which is connected to the control unit.

[0012] The control unit includes a digital input module and a digital output module. The digital input module is connected to the proximity switch via a port, and the digital output module is connected to the alarm via a port.

[0013] The control unit also includes a CPU, which is connected to the digital input module and the digital output module via ports.

[0014] The control unit is a PLC.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. During the normal operation of the chain grate machine, the detection device can promptly detect the lifting of the chain grate plate, ensuring the efficient operation of the chain grate machine and improving its operating rate.

[0017] 2. The through shaft is equipped with a connecting inner sleeve, which is an accessory of the running chain and does not require additional processing, thus saving production costs;

[0018] 3. The camera is connected to the display screen via a hard disk recorder. Operators can view the condition of the grate plate at the tail of the chain grate machine being raised and the chain links being broken on the display screen. No manual on-site inspection is required, which reduces labor and maintenance costs.

[0019] 4. The CPU is connected to the touch screen, allowing maintenance personnel to check the status of the proximity switches at any time via the touch screen, saving time and effort; the alarm is connected to the PLC, promptly alerting maintenance personnel when the grate is tilted up, facilitating timely response and preventing the accident from escalating. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a chain grate machine grate tilting detection device. Figure 1 .

[0021] Figure 2 This is a schematic diagram of a chain grate machine grate tilting detection device. Figure 2 .

[0022] Figure 3 This is a schematic diagram of the structure of the grate tilting detection device for a chain grate machine.

[0023] Figure 4 This is a schematic diagram of the control unit.

[0024] In the diagram: 1. Proximity switch; 2. Detection device; 3. Through shaft; 4. Detection plate; 5. Camera; 6. Running chain; 7. Alarm; 8. Display screen; 9. Feed plate; 10. Chain grate tail wheel; 11. Through shaft bracket. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings. However, it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0026] The following embodiments are implemented based on the technical solution of this utility model, providing detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments. Unless otherwise specified, the methods used in the following embodiments are conventional methods.

[0027] Example 1

[0028] See Figure 1-3 A grate tilting detection device for a chain grate machine is disclosed. The detection device 2 includes a through shaft 3, proximity switches 1, detection plates 4, a camera 5, a display screen, and an alarm 7. A feed plate 9 is set above the tail of the chain grate machine for feeding the chain grate machine. A through shaft bracket 11 is fixedly connected to the feed plate 9. The through shaft bracket 11 has multiple hooks along the running direction of the running chain 6. The through shaft 3 is hooked onto the through shaft bracket 11. A connecting inner sleeve is provided outside the through shaft 3 and is snapped onto the through shaft 3. Six detection plates 4 are fixedly connected to the connecting inner sleeves respectively. The connecting inner sleeve adopts the "An Improved Chain Link and Pellet Chain Grate Machine Running Chain" disclosed in CN208520209U, but other models can also be used. Each detection plate 4 corresponds one-to-one with a chain link of the running chain 6. Brackets are welded to both ends of the grate of the tail wheel 10 of the chain grate machine. There are two proximity switches 1, which are respectively set on the corresponding brackets. The proximity switches 1 correspond to the tilted detection plates 4.

[0029] Camera 5 is connected to the hard disk recorder via a port, and the hard disk recorder is connected to the display screen via a port. Camera 5 is used to display the operating status of the grate of the chain grate machine. Operators can monitor the grate at the tail of the chain grate machine and the condition of the chain links warping or breaking at any time through the display screen, without the need for manual on-site inspection. There are two cameras 5, which are respectively installed on the brackets at both ends of the grate of the tail wheel 10 of the chain grate machine. Alarm 7 is installed on the outer wall of the control room.

[0030] See Figure 4 The control unit includes a digital input module, a digital output module, a CPU, and a touch screen. The CPU is connected to the digital input module and the digital output module via ports, the CPU is connected to the touch screen via a port, the digital input module is connected to proximity switch 1 via a port, and the digital output module is connected to alarm 7 via a port. The control unit is a PLC.

[0031] Work process:

[0032] When the grate of the chain grate machine tilts up, the tilted grate scrapes against the detection plate, causing the detection plate to tilt along with the through shaft. Since the through shaft and the six detection plates move together, the detection plates at both ends of the through shaft touch the proximity switch. The proximity switch transmits the fault information of the tilted grate of the chain grate machine to the PLC, and the PLC issues a command to make the alarm sound.

[0033] During normal operation of the chain grate machine, the detection device can promptly detect grate tilting, ensuring efficient operation and improving the machine's utilization rate. A connecting inner sleeve is installed on the through shaft; this sleeve is an accessory for the running chain and requires no additional processing, saving production costs. A camera is connected to a display screen via a hard disk recorder, allowing operators to monitor grate tilting and chain link breakage at the tail of the machine in real time, eliminating the need for manual on-site inspections, reducing labor and maintenance costs. The CPU is connected to a touch screen, allowing maintenance personnel to view the status of proximity switches at any time, saving time and effort. An alarm connected to the PLC promptly alerts maintenance personnel to grate tilting, facilitating timely intervention and preventing escalation of the accident.

Claims

1. A device for detecting the warping of a chain grate machine's grate plate, characterized in that, It includes a through shaft, a proximity switch, and detection plates. The through shaft is located above the tail of the chain grate machine. The through shaft is equipped with a connecting inner sleeve. Several detection plates are fixedly connected to the corresponding connecting inner sleeves. Each detection plate corresponds one-to-one with a link of the running chain. The proximity switch is fixedly connected to a bracket. The bracket is located at both ends of the grate plate of the tail wheel of the chain grate machine. The proximity switch is connected to the control unit.

2. The chain grate machine grate warping detection device according to claim 1, characterized in that, The feeding plate is located above the tail of the chain grate machine and is used to feed materials to the chain grate machine. A through shaft bracket is fixedly connected to the feeding plate, and multiple hooks are fixedly connected to the through shaft bracket. The through shaft hooks are hung on the through shaft bracket.

3. The chain grate machine grate warping detection device according to claim 1, characterized in that, The inner sleeve of the link is snapped onto the through shaft.

4. The chain grate machine grate warping detection device according to claim 1, characterized in that, The detection device also includes a camera, which is fixedly connected to a bracket, connected to a hard disk recorder via a port, and connected to a display screen via a port. The camera is used to display the operating status of the chain grate.

5. The chain grate machine grate warping detection device according to claim 1, characterized in that, The proximity switch corresponds to the tilted detection plate.

6. The chain grate machine grate warping detection device according to claim 1, characterized in that, It also includes an alarm, which is connected to the control unit.

7. The chain grate machine grate warping detection device according to claim 6, characterized in that, The control unit includes a digital input module and a digital output module. The digital input module is connected to the proximity switch via a port, and the digital output module is connected to the alarm via a port.

8. The chain grate machine grate warping detection device according to claim 7, characterized in that, The control unit also includes a CPU, which is connected to the digital input module and the digital output module via ports.

9. The chain grate machine grate warping detection device according to claim 1, characterized in that, The control unit is a PLC.

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