Device for measuring temperature of materials of belt conveyor in real time

Abstract

The utility model belongs to the technical field of cement production, and particularly relates to a belt conveyor material real-time temperature measuring device which comprises a belt conveyor used for conveying cooled clinker, a feeding hopper installed above the belt conveyor and used for guiding the cooled clinker to the belt conveyor, and an infrared thermometer erected above the belt conveyor. A material control assembly is arranged at the bottom of the feeding hopper and comprises a fence installed between the feeding hopper and the belt conveyor and a material control plate movably connected to the side, close to the infrared thermometer, of the fence, and by arranging the material control assembly, the size of an outlet of the feeding hopper is adjusted by adjusting the included angle between the material control plate and the fence. Therefore, the clinker guided out of the feeding hopper is uniformly distributed on the belt conveyor, the accuracy of monitoring the temperature of the clinker by the infrared thermodetector is facilitated, and when the infrared thermodetector monitors that the temperature of the clinker is relatively high, the thickness of the clinker distributed on the belt conveyor is reduced by reducing the included angle between the material control plate and the fence, so that the heat dissipation of the clinker can be facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of cement production technology, specifically relating to a real-time temperature measurement device for materials on belt conveyors. Background Technology

[0002] Cooling the calcined cement clinker and measuring its temperature are crucial steps in the cement production process. After cooling, the clinker is conveyed to the next manufacturing stage via a belt conveyor. During this conveying process, the cement temperature needs to be measured to prevent excessively high temperatures from affecting its quality, thus ensuring the smooth progress of the production process and the quality of the final product.

[0003] Existing technologies for measuring clinker temperature typically involve installing an infrared thermometer at a fixed position above the conveyor belt. As the conveyor belt runs, the temperature of the clinker is monitored in real time. However, due to the distance affecting the infrared thermometer, the unevenness of the clinker falling onto the conveyor belt may cause some infrared radiation to be reflected or scattered, thus affecting the accuracy of the temperature measurement. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a real-time temperature measurement device for materials conveyed on a belt conveyor, thereby solving the problem mentioned in the background art where the unevenness of the clinker conveyed on the belt conveyor leads to inaccurate temperature measurements by the infrared thermometer.

[0005] This utility model provides a real-time temperature measurement device for materials on a belt conveyor, including a belt conveyor for conveying cooled clinker, a feed hopper installed above the belt conveyor for guiding the cooled clinker onto the belt conveyor, and an infrared thermometer installed above the belt conveyor for real-time monitoring of the clinker temperature. The bottom of the feed hopper is equipped with a material control component for evenly distributing the clinker discharged from the feed hopper onto the belt conveyor. The material control component includes a barrier installed between the feed hopper and the belt conveyor, and a material control plate movably connected to the side of the barrier near the infrared thermometer for controlling the opening and closing state of the feed hopper. In use, the thickness of the material distributed on the belt conveyor is adjusted by adjusting the angle between the material control plate and the barrier.

[0006] Preferably, the material control plate and the enclosure are hinged by a pin, one end of which is connected to the output shaft of a motor fixed to one side of the enclosure, and the motor is used to drive the material control plate to rotate around the pin.

[0007] Preferably, a screw conveyor is installed on the side of the feed hopper away from the infrared thermometer, and a discharge cylinder for conveying the cooled clinker from the cooling equipment into the screw conveyor is installed at the feed inlet of the screw conveyor.

[0008] Preferably, the device also includes a level sensor installed on the top of the feed hopper and a controller connected to the level sensor, the motor, and the screw conveyor. When the level sensor detects that the clinker height in the feed hopper has increased to a preset maximum threshold, the controller controls the motor to work, causing the control plate to flip away from the enclosure, thereby opening the feed hopper. At the same time, the controller controls the screw conveyor to slow down accordingly. When the level sensor detects that the clinker height in the feed hopper has decreased to a preset minimum threshold, the controller controls the screw conveyor to speed up accordingly.

[0009] Preferably, it also includes a temperature display connected to the infrared thermometer, which is used to display the temperature measured by the infrared thermometer.

[0010] Preferably, the system also includes an alarm system connected to the controller. When the temperature of the clinker measured by the infrared thermometer exceeds a preset safety threshold, the controller triggers the alarm system to issue an audible and / or visual alarm signal.

[0011] The beneficial effects of this utility model are as follows: By setting up a material control component, the size of the feed hopper outlet can be adjusted by adjusting the angle between the material control plate and the enclosure during use. This achieves precise control and uniform distribution of the clinker discharged from the feed hopper on the belt conveyor. When the clinker with uniform thickness is conveyed along the belt conveyor, it helps the infrared thermometer to monitor the temperature of the clinker accurately. Furthermore, when the infrared thermometer detects that the temperature of the clinker is high, reducing the angle between the material control plate and the enclosure to reduce the thickness of the clinker distributed on the belt conveyor can help dissipate heat from the clinker. Attached Figure Description

[0012] Figure 1 This is a first-view structural diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0014] Figure 3 This is a first cross-sectional view of the present invention.

[0015] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0016] Figure 5 This is a second cross-sectional view of the present invention.

[0017] In the diagram: 1. Belt conveyor; 2. Feed hopper; 3. Infrared thermometer; 4. Enclosure; 5. Material control plate; 6. Pin shaft; 7. Motor; 8. Screw conveyor; 9. Feed cylinder; 10. Material level sensor; 11. Controller. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0019] This utility model discloses a real-time temperature measurement device for materials on a belt conveyor. It mainly includes a belt conveyor 1 for conveying cooled clinker, a feed hopper 2 installed above the belt conveyor 1 for guiding the cooled clinker onto the belt conveyor 1, and an infrared thermometer 3 installed above the belt conveyor 1 for real-time temperature monitoring of the clinker. In use, the cooled cement clinker is transferred via the belt conveyor 1 to the next operating point for storage or transportation. While the cement clinker is transported along the belt conveyor 1, the infrared thermometer 3 detects the temperature of the clinker and transmits the measured temperature data to an outdoor display screen to remind personnel to pay attention to and adjust the clinker temperature. This is an introduction to a conventional real-time temperature measurement device for materials on a belt conveyor.

[0020] As can be seen from the above, the existing real-time temperature measurement device for materials on belt conveyors has the following defects in use. Because the infrared thermometer 3 is affected by distance, the infrared thermometer 3 usually has a specific instantaneous field of view, which determines the size of the target area that the thermometer can observe. When the measurement distance increases, the field of view area of ​​the instantaneous field of view also increases. If the target size is reduced relative to the multiple of the instantaneous field of view area, that is, the target cannot fill the instantaneous field of view, the output signal will decrease, resulting in temperature measurement error. At the same time, as the distance increases, infrared radiation will be absorbed and scattered by substances such as water vapor, carbon dioxide, and dust in the atmosphere during transmission, resulting in a decrease in atmospheric transmittance. This will weaken the intensity of the received infrared radiation, thus affecting the temperature measurement accuracy. The unevenness of the clinker falling on the belt conveyor 1 may cause some infrared radiation to be reflected or scattered, thus affecting the accuracy of temperature measurement. Based on the above problems, this utility model adopts the following improvement method to solve them.

[0021] like Figure 1-5As shown, a real-time temperature measurement device for materials on a belt conveyor includes a belt conveyor 1 for conveying cooled clinker, a feed hopper 2 installed above the belt conveyor 1 for guiding the cooled clinker onto the belt conveyor 1, and an infrared thermometer 3 installed above the belt conveyor 1 for real-time monitoring of the clinker temperature. A material control assembly is installed at the bottom of the feed hopper 2 to evenly distribute the clinker discharged from the feed hopper 2 onto the belt conveyor 1. The material control assembly includes a baffle 4 installed between the feed hopper 2 and the belt conveyor 1, and a control plate 5 movably connected to the baffle 4 near the infrared thermometer 3 for controlling the opening and closing state of the feed hopper 2. The material control component is installed so that the size of the outlet of the feed hopper 2 can be adjusted by adjusting the angle between the material control plate 5 and the enclosure 4. This allows for precise control and uniform distribution of the clinker discharged from the feed hopper 2 on the belt conveyor 1. The uniform thickness of the clinker as it is conveyed along the belt conveyor 1 helps the infrared thermometer 3 to monitor the clinker temperature accurately. When the infrared thermometer 3 detects that the clinker temperature is too high, the thickness of the clinker distributed on the belt conveyor 1 can be reduced by decreasing the angle between the material control plate 5 and the enclosure 4. This helps to dissipate heat from the clinker, effectively reducing the risk of belt conveyor damage caused by excessively high clinker temperature and ensuring the safe operation of the equipment.

[0022] Furthermore, such as Figure 3-4 As shown, the control plate 5 and the enclosure 4 are hinged by a pin 6. One end of the pin 6 is connected to the output shaft of a motor 7 fixed to one side of the enclosure 4. The motor 7 drives the control plate 5 to rotate around the pin 6. When the motor 7 is running, it drives the control plate 5 to flip away from the enclosure 4, thus opening the feed hopper 2. The distance between the bottom of the control plate 5 and the belt conveyor 1 is the thickness of the clinker distributed on the belt conveyor 1. When needed, the thickness of the clinker distributed on the belt conveyor 1 can be adjusted by adjusting the angle between the control plate 5 and the enclosure 4. When the angle increases, the clinker flow rate decreases, and the thickness of the clinker distributed on the belt conveyor 1 becomes thinner; when the angle decreases, the clinker flow rate increases, and the thickness of the clinker becomes thicker. Figure 3 As shown, the enclosure 4 is U-shaped, and the bottom of the enclosure 4 and the control plate 5 are in contact with the surface of the belt conveyor 1. While ensuring the normal operation of the belt conveyor 1, it can prevent the clinker from being discharged from the feed hopper 2 when the control plate 5 and the enclosure 4 are in a parallel state.

[0023] Furthermore, such as Figure 1-3 As shown, a screw conveyor 8 is installed on the side of the feed hopper 2 away from the infrared thermometer 3. A discharge cylinder 9 is installed at the feed inlet of the screw conveyor 8 to transport the cooled clinker from the cooling equipment into the screw conveyor 8. By setting up the screw conveyor 8 and the discharge cylinder 9, the cement clinker in the cooling equipment can be continuously and evenly transported into the feed hopper 2.

[0024] Furthermore, such as Figure 5As shown, it also includes a level sensor 10 installed on the top of the feed hopper 2 and a controller 11 connected to the level sensor 10, the motor 7 and the screw conveyor 8. When the level sensor 10 detects that the clinker height in the feed hopper 2 has increased to the preset maximum threshold, the controller 11 controls the motor 7 to work, driving the control plate 5 to flip away from the enclosure 4, thereby opening the feed hopper 2. At the same time, the controller 11 controls the screw conveyor 8 to slow down accordingly, avoiding the accumulation and overflow of clinker. When the level sensor 10 detects that the clinker height in the feed hopper 2 has decreased to the preset minimum threshold, the controller 11 controls the screw conveyor 8 to speed up accordingly, avoiding uneven distribution of clinker thickness on the belt conveyor 1 due to insufficient clinker in the feed hopper 2.

[0025] Furthermore, it also includes a temperature display (not shown in the figure) connected to the infrared thermometer 3. This temperature display is used to display the temperature measured by the infrared thermometer 3. The installation position of the infrared thermometer 3 should ensure that its distance from the belt conveyor 1 does not exceed 30cm. It adopts a two-wire 4-20mA output signal sensor and a two-wire analog output temperature display. The introduction of the temperature display allows the operator to obtain the clinker temperature information in real time, which is convenient for timely adjustments. When the clinker temperature is higher than the preset threshold and has not been cooled to the preset temperature, or when it heats up due to friction during conveying on the belt conveyor 1, the operator can adjust the high and low temperature zones of the clinker in time (cool the clinker or adjust the thickness of the clinker distribution on the belt conveyor 1), effectively reducing the risk of belt conveyor damage caused by excessive clinker temperature and ensuring safe operation of the equipment.

[0026] Furthermore, it also includes an alarm system connected to the controller 11. When the clinker temperature measured by the infrared thermometer 3 exceeds the preset safety threshold, the controller 11 triggers the alarm system to issue an audible and / or visual alarm signal to remind the operator to take timely measures to prevent equipment damage or safety accidents caused by excessive temperature.

Claims

1. A real-time temperature measurement device for materials on a belt conveyor, comprising a belt conveyor (1) for conveying cooled clinker, a feed hopper (2) installed above the belt conveyor (1) for guiding the cooled clinker onto the belt conveyor (1), and an infrared thermometer (3) mounted above the belt conveyor (1) for real-time monitoring of the temperature of the clinker, characterized in that: The bottom of the feed hopper (2) is equipped with a material control component for evenly distributing the clinker discharged from the feed hopper (2) onto the belt conveyor (1). The material control component includes a barrier (4) installed between the feed hopper (2) and the belt conveyor (1) and a material control plate (5) movably connected to the side of the barrier (4) near the infrared thermometer (3) for controlling the opening and closing state of the feed hopper (2). In use, the thickness distributed on the belt conveyor (1) is adjusted by adjusting the angle between the material control plate (5) and the barrier (4).

2. The real-time temperature measurement device for materials on a belt conveyor according to claim 1, characterized in that: The material control plate (5) and the enclosure (4) are hinged by a pin (6). One end of the pin (6) is connected to the output shaft of a motor (7) fixed on one side of the enclosure (4). The motor (7) is used to drive the material control plate (5) to rotate around the pin (6).

3. The real-time temperature measurement device for materials on a belt conveyor according to claim 1, characterized in that: A screw conveyor (8) is installed on the side of the feed hopper (2) away from the infrared thermometer (3). A discharge cylinder (9) for conveying the cooled clinker from the cooling equipment into the screw conveyor (8) is installed at the feed inlet of the screw conveyor (8).

4. The real-time temperature measurement device for materials on a belt conveyor according to claim 3, characterized in that: It also includes a level sensor (10) installed on the top of the feed hopper (2) and a controller (11) connected to the level sensor (10), the motor (7) and the screw conveyor (8). When the level sensor (10) detects that the clinker height in the feed hopper (2) has increased to the preset maximum threshold, the controller (11) controls the motor (7) to work, driving the control plate (5) to flip to the side away from the enclosure (4) to open the feed hopper (2). At the same time, the controller (11) controls the conveying speed of the screw conveyor (8) to slow down accordingly. When the level sensor (10) detects that the clinker height in the feed hopper (2) has decreased to the preset minimum threshold, the controller (11) controls the conveying speed of the screw conveyor (8) to speed up accordingly.

5. A real-time temperature measuring device for materials on a belt conveyor according to any one of claims 1-4, characterized in that: It also includes a temperature display connected to the infrared thermometer (3), which is used to display the temperature measured by the infrared thermometer (3).

6. A real-time temperature measuring device for materials on a belt conveyor according to any one of claims 1-5, characterized in that: It also includes an alarm system connected to the controller (11). When the temperature of the clinker measured by the infrared thermometer (3) exceeds the preset safety threshold, the controller (11) triggers the alarm system to issue an audible and / or visual alarm signal.

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