Temperature measuring and alarming device for coal conveying gallery
By installing temperature measuring components at the contact points of the belt and idler rollers, the problem of detection lag in the existing technology is solved, enabling real-time temperature monitoring of the friction points, improving detection accuracy and speed, and preventing fires.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-31
AI Technical Summary
The existing temperature measuring devices in the coal conveyor corridor can only detect when there is a significant change in the surface temperature of the conveyor belt, which cannot detect hot spots in time and has a detection lag, potentially leading to a fire.
Temperature measuring components, including a temperature measuring frame and a temperature measuring device, are installed at the contact point between the belt and the idler roller. Heat is conducted to the temperature measuring device through a stop heat-conducting component, enabling real-time temperature monitoring of the friction point. Combined with a speed sensor and an audible and visual alarm device, timely alarms are triggered.
It improves detection accuracy and speed, enabling timely detection of high temperatures at friction points and preventing fires.
Smart Images
Figure CN224066216U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coal conveying corridor detection devices, and in particular to a coal conveying corridor temperature measurement and alarm device. Background Technology
[0002] Coal conveyor corridors are generally equipped with conveyor belts for transporting coal from mines. Since the conveyor belts are relatively long, belt idlers are required to support them. During the coal transport process, coal may fall onto the shaft of the belt idler, causing the idler to jam or the roller to slip. This kind of mechanical friction may cause local high temperatures, which may lead to belt burn or fire if not detected in time.
[0003] Currently, temperature measuring devices in coal conveyor corridors are generally installed above the conveyor belt, using infrared thermal imagers to detect the temperature of the belt surface. This measurement method can only detect significant changes in the belt surface temperature and cannot monitor hot spots, thus exhibiting a time lag. Utility Model Content
[0004] The main purpose of this invention is to propose a temperature alarm device for coal conveying corridors, which aims to improve detection accuracy and speed, and avoid fires caused by detection delays.
[0005] To achieve the above objectives, the coal conveying corridor temperature measurement and alarm device proposed in this utility model is applied to a coal conveying belt. The coal conveying belt includes a belt and multiple idlers. The coal conveying corridor temperature measurement and alarm device includes multiple temperature measuring components. The temperature measuring components are located below the belt and close to the idlers. The temperature measuring components are used to test the temperature on one side of the contact point between the belt and the idlers.
[0006] In one embodiment, the temperature measuring component includes:
[0007] The temperature measuring frame includes a heat-conducting stop component, which is spaced apart from the belt and the idler roller.
[0008] A temperature measuring device is located on the side of the stop heat-conducting component away from the temperature measuring frame, and on the side of the contact point between the belt and the idler roller. The temperature measuring device is used to measure the temperature on the side of the contact point between the belt and the idler roller.
[0009] In one embodiment, the temperature measuring device is a temperature measuring optical fiber, which is bent from one side of the belt and extends to the side of the idler roller, and then bent and extends to the other side of the belt, and so on.
[0010] In one embodiment, the temperature measuring device is a temperature sensor, which is attached to the heat-conducting stop component.
[0011] In one embodiment, the temperature measuring frame is located on the side of the idler roller facing the belt conveyor direction.
[0012] In one embodiment, the heat-conducting stop is made of copper.
[0013] In one embodiment, the stop heat-conducting component includes a top plate and a side plate. The top plate is located below the belt and spaced apart from the belt. The side plate is an arc-shaped plate and is disposed adjacent to the idler roller.
[0014] In one embodiment, the temperature measuring frame further includes a support, which is disposed on the side of the stop heat-conducting component away from the idler roller. The support and the stop heat-conducting component enclose a cavity, and the temperature measuring device is disposed in the cavity.
[0015] In one embodiment, a speed sensor is provided on one side of the idler roller.
[0016] In one embodiment, the coal conveying corridor temperature measurement alarm device further includes an audible and visual alarm device, which is used to issue an alarm when the temperature measurement component detects an abnormal temperature.
[0017] In the technical solution provided by this utility model, a temperature monitoring and alarm device for a coal conveyor corridor is applied to a coal conveyor belt. The coal conveyor belt includes a belt and multiple idlers. The temperature monitoring and alarm device includes multiple temperature measuring components, which are located below the belt and close to the idlers. The temperature measuring components are used to test the temperature on one side of the contact point between the belt and the idlers. This solution detects the temperature at the contact point by setting temperature measuring components on that side. When the idler gets stuck, causing friction between the belt and the idler, the heat generated by the belt and idler around the friction point can be detected immediately. By monitoring the friction point, the detection accuracy and speed are improved, preventing fires caused by detection delays. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0019] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the temperature measurement and alarm device for coal conveying corridors provided by this utility model;
[0020] Figure 2 This is a schematic diagram of the structure of one embodiment of the temperature measuring component;
[0021] Figure 3 This is an exploded view of an embodiment of a temperature sensing component;
[0022] Figure 4 This is an exploded view of another embodiment of the temperature sensing component.
[0023] Explanation of icon numbers:
[0024] 1000. Temperature measurement and alarm device for coal conveying corridor; 1. Belt conveyor; 2. Idler roller; 3. Temperature measurement component; 31. Temperature measurement frame; 311. Stop heat conduction component; 3111. Top plate; 3112. Side plate; 312. Support; 32. Temperature measurement device; 321. Temperature measurement fiber optic cable; 322. Temperature sensor; 4. Speed sensor; 5. Audible and visual alarm device.
[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0029] Existing temperature measuring devices in coal conveyor corridors are generally installed above the conveyor belt, using infrared thermal imagers to detect the temperature of the belt surface. This measurement method can only detect significant changes in the belt surface temperature and cannot monitor hot spots, thus exhibiting a time lag.
[0030] To address this technical problem, this utility model provides a coal conveyor corridor temperature monitoring and alarm device 1000 applied to a coal conveyor belt 1. The coal conveyor belt 1 includes a belt 1 and multiple idlers 2. The coal conveyor corridor temperature monitoring and alarm device 1000 includes multiple temperature measuring components 3, which are located below the belt 1 and close to the idlers 2. The temperature measuring components 3 are used to test the temperature on one side of the contact point between the belt 1 and the idlers 2. This solution detects the temperature at the contact point by setting the temperature measuring components 3 on one side of the contact point between the belt 1 and the idlers 2. When the idlers 2 become stuck, causing friction between the belt 1 and the idlers 2, the heat generated by the belt 1 and the idlers 2 around the friction point can be detected immediately. By monitoring the friction point, the detection accuracy and speed are improved, preventing fires caused by detection delays.
[0031] Please see Figures 1 to 4 In one embodiment of this utility model, the temperature measuring component 3 includes:
[0032] Temperature measuring frame 31 includes a stop heat conducting component 311, which is spaced apart from belt 1 and idler roller 2.
[0033] Temperature measuring device 32 is located on the side of the stop heat-conducting component 311 away from the temperature measuring frame 31. Temperature measuring device 32 is located on the side of the contact point between belt 1 and idler roller 2. Temperature measuring device 32 is used to measure the temperature on the side of the contact point between belt 1 and idler roller 2.
[0034] In this embodiment, a stop heat-conducting component 311 is provided between the contact point of the temperature measuring device 32 and the belt 1 and the idler roller 2. Firstly, it can prevent the vibration of the belt 1 and the idler roller 2 during the transportation of the belt 1 from damaging the temperature measuring device 32. Secondly, when the idler roller 2 is jammed, the heat from the heating point can be transferred to the temperature measuring device 32 through the stop heat-conducting component 311 with good thermal conductivity, so as to meet the temperature measurement and detection requirements.
[0035] Please see Figure 2 and Figure 3 In one embodiment of this utility model, the temperature measuring device 32 is a temperature measuring optical fiber 321. The temperature measuring optical fiber 321 is bent and extended from one side of the belt 1 to the side of the idler roller 2, and then bent and extended to the other side of the belt 1, and so on. By using the temperature measuring optical fiber 321, the distance and location of the high temperature can be clearly detected.
[0036] Please see Figure 4In another embodiment, the temperature measuring device 32 is a temperature sensor 322, which is attached to the heat-conducting stop 311. Multiple temperature sensors 322 are connected by wiring, and the temperature sensors 322 can accurately measure temperature data.
[0037] Please see Figure 2 The temperature measuring bracket 31 is located on the side of the idler roller 2 facing the conveying direction of the belt 1. When the idler roller 2 and the belt 1 rub against each other, the belt 1 on the side of the idler roller 2 facing the conveying direction of the belt 1 generates heat through friction, while the other side does not rub against each other and therefore does not generate heat. Therefore, by placing the temperature measuring bracket 312 in this position, the heat generated by the belt 1 and the heat generated by the idler roller 2 can be measured simultaneously, resulting in higher measurement accuracy.
[0038] In one embodiment, the heat-conducting stop element 311 is made of copper. Copper has a high thermal conductivity of 398 W / m·K, a high melting point, and a moderate corrosion rate, which can effectively reduce energy loss during heat transfer. Therefore, the heat-conducting stop element 311 made of copper can ensure heat conduction efficiency while preventing melting due to high temperatures generated by friction.
[0039] Please see Figure 2 In one embodiment of this utility model, the stop heat-conducting component 311 includes a top plate 3111 and a side plate 3112. The top plate 3111 is located below the belt 1 and spaced apart from the belt 1. The side plate 3112 is an arc-shaped plate and is disposed adjacent to the idler roller 2. By keeping the contour of the stop heat-conducting component 311 consistent with the contour of the belt 1 and the idler roller 2, a small gap can be maintained between the stop heat-conducting component 311 and the belt 1 and the idler roller 2, thereby ensuring efficient heat conduction.
[0040] Please see Figure 3 and Figure 4 In one embodiment of this utility model, the temperature measuring frame 31 further includes a support 312. The support 312 is disposed on the side of the stop heat-conducting component 311 away from the idler roller 2. The support 312 and the stop heat-conducting component 311 enclose a cavity, and the temperature measuring device 32 is disposed in the cavity. By setting the support 312, which encloses the cavity with the stop heat-conducting component 311, heat can be directly conducted into the cavity. The cavity has a certain heat preservation effect, preventing the heat from being dissipated quickly, and ensuring that the temperature measuring device 32 located in the cavity can detect large temperature fluctuations.
[0041] Please see Figure 2In one embodiment of this utility model, a speed sensor 4 is provided on one side of the idler roller 2. The speed sensor 4 detects the speed of the idler roller 2. When the speed of the idler roller 2 decreases or stops rotating, it is determined whether the idler roller 2 is stuck. In case of failure, the damaged or stuck idler roller 2 can be quickly located among the multiple idler rollers 2 in the entire coal conveying corridor, which is convenient for maintenance personnel to adjust and replace.
[0042] Please see Figure 1 In one embodiment of this utility model, the coal conveying corridor temperature measurement alarm device 1000 further includes an audible and visual alarm device 5, which is used to issue an alarm when the temperature measuring component 3 detects an abnormal temperature. The audible and visual alarm device 5 facilitates timely detection of damage and its location by staff during corridor patrols, allowing for prompt maintenance and significantly reducing the risk of fire.
[0043] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A temperature measuring alarm device for a coal conveying gallery, characterized in that, The coal conveying gallery temperature measuring and alarming device is applied to a coal conveying belt, the coal conveying belt comprises a belt and a plurality of rollers, the coal conveying gallery temperature measuring and alarming device comprises a plurality of temperature measuring assemblies, the temperature measuring assemblies are located below the belt and are arranged close to the rollers, and the temperature measuring assemblies are used for testing the temperature on one side of a contact point between the belt and the rollers.
2. The temperature measuring and alarming device for coal conveying gallery according to claim 1, characterized in that, The temperature measuring assembly comprises: a temperature measuring frame, the temperature measuring frame comprises a stop heat conduction member, the stop heat conduction member is arranged in a spaced manner between the belt and the roller; a temperature measuring device, the temperature measuring device is located on one side of the stop heat conduction member away from the temperature measuring frame, the temperature measuring device is located on one side of the contact point between the belt and the roller, and the temperature measuring device is used for measuring the temperature on one side of the contact point between the belt and the roller.
3. The temperature measuring and alarming device for coal conveying gallery according to claim 2, characterized in that, The temperature measuring device is a temperature measuring optical fiber, the temperature measuring optical fiber is bent and extended from one side of the belt to the side of the roller, and then bent and extended to the other side of the belt, and the temperature measuring optical fiber is arranged in this way.
4. The temperature measuring and alarming device for coal conveying gallery according to claim 2, characterized in that, The temperature measuring device is a temperature sensor, and the temperature sensor is arranged in close contact with the stop heat conduction member.
5. The temperature measuring alarm device for coal conveying gallery according to claim 2, characterized in that, The temperature measuring frame is located on one side of the roller in the conveying direction of the belt.
6. The temperature measuring alarm device for coal conveying gallery according to claim 2, characterized in that, The material of the stop heat conduction member is copper.
7. The temperature measuring and alarming device for coal conveying gallery according to claim 6, characterized in that, The stop heat conduction member comprises a top plate and a side plate, the top plate is located below the belt and is arranged in a spaced manner with the belt, and the side plate is an arc-shaped plate, and the side plate is arranged close to the roller.
8. The temperature measuring and alarming device for coal conveying gallery according to claim 7, characterized in that, The temperature measuring frame further comprises a support, the support is arranged on one side of the stop heat conduction member away from the roller, the support and the stop heat conduction member form a cavity, and the temperature measuring device is arranged in the cavity.
9. The temperature measuring and alarming device for coal conveying gallery according to claim 8, characterized in that, The roller is provided with a rotating speed sensor on one side.
10. The temperature measuring and alarming device for coal conveying gallery according to any one of claims 1 to 9, characterized in that, The coal conveying gallery temperature measuring and alarming device further comprises an audible and visual alarming device, and the audible and visual alarming device is used for issuing an alarm when the temperature measuring assembly detects an abnormal temperature.