Automatic cooling and fire extinguishing spraying device for slag conveying belt

Abstract

The utility model relates to a cooling and fire extinguishing device for a slag conveying belt, and is an automatic cooling and fire extinguishing spraying device for a slag conveying belt, which comprises a slag cooler and a slag conveying belt, wherein the discharge end of the slag cooler is located directly above the input end of the slag conveying belt, at least one temperature measuring device is fixedly installed on the slag conveying belt above the discharge end of the slag cooler through a support, and a spraying device is fixedly installed on the slag conveying belt above the discharge end of the slag cooler through a support. The utility model has the advantages of reasonable and compact structure, convenient use, real-time temperature measurement, timely spraying and cooling when the temperature of the slag conveying belt is too high or the slag conveying belt catches fire, safety and reliability, facilitated operation, greatly improved detection efficiency, and reduced production cost and fire hazard.

Description

Technical Field

[0001] This utility model relates to the technical field of cooling and fire extinguishing devices for slag conveyor belts, and is an automatic cooling and fire extinguishing spray device for slag conveyor belts. Background Technology

[0002] Stable operation of a circulating fluidized bed boiler requires continuous slag feeding via a slag cooler and conveyor belt. Slag from the slag cooler falls onto the conveyor belt for transport. If an abnormality occurs during slag feeding, high-temperature slag falling onto the conveyor belt may ignite it, causing the belt to break and forcing the boiler to shut down, leading to reduced production in downstream workshops. The conventional practice is to manually inspect the conveyor belt, but abnormal slag temperatures can cause fires that cannot be detected promptly, resulting in low detection efficiency and high production costs. Summary of the Invention

[0003] This utility model provides an automatic cooling and fire extinguishing spray device for slag conveying belts, which overcomes the shortcomings of the prior art. It can effectively solve the problem that the slag conveying belt may ignite during the process of conveying slag, causing the belt to break and the boiler to be forced to shut down. Existing detection methods have the problems of low detection efficiency and high production cost.

[0004] The technical solution of this utility model is achieved through the following measures: an automatic cooling and fire extinguishing spray device for a slag conveying belt, including a slag cooler and a slag conveying belt. The discharge end of the slag cooler is located directly above the input end of the slag conveying belt. At least one temperature measuring device is fixedly installed above the slag conveying belt near the discharge end of the slag cooler by a support. A spraying device is fixedly installed above the slag conveying belt by a support.

[0005] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution:

[0006] The temperature measuring device is an infrared temperature detector; the spraying device is a spray pipe with both ends closed, with liquid discharge holes evenly distributed along the axial direction at the bottom of the spray pipe, and a spray head fixedly installed on the liquid discharge holes of the spray pipe.

[0007] The controller is fixedly installed on the outside of the slag cooler via a support. A liquid inlet pipe is fixedly connected to the spray pipe. A control valve is fixedly installed on the liquid inlet pipe. The signal output terminal of the infrared temperature detector is electrically connected to the signal input terminal of the controller via a wire. The signal output terminal of the controller is electrically connected to the signal input terminal of the control valve via a wire.

[0008] The controller described above is an automatic overheating sprinkler controller; the control valve is a solenoid valve.

[0009] The above also includes a first support, on which the slag cooler is fixedly installed.

[0010] The above also includes a second support, on which the slag conveyor belt is fixedly installed.

[0011] This utility model has a reasonable and compact structure and is easy to use. Through the combined use of a slag cooler, a slag conveyor belt, a temperature measuring device, and a spraying device, it can achieve real-time temperature measurement and timely cooling by spraying when the slag conveyor belt temperature is too high or catches fire. It has the characteristics of safety and reliability, facilitates operation, greatly improves detection efficiency, and reduces production costs and fire hazards. Attached Figure Description

[0012] Appendix Figure 1 This is a front view structural diagram of the preferred embodiment of the present utility model.

[0013] The codes in the attached diagram are as follows: 1 is the slag cooler, 2 is the slag conveyor belt, 3 is the temperature measuring device, 4 is the spray pipe, 5 is the controller, 6 is the liquid inlet pipe, 7 is the control valve, 8 is the first support, and 9 is the second support. Detailed Implementation

[0014] This utility model is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this utility model and the actual situation.

[0015] In this utility model, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as the positional relationships of front, back, top, bottom, left, and right, which are based on the instructions attached. Figure 1 The orientation of the layout is determined by the direction of the map.

[0016] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0017] As attached Figure 1 As shown, the automatic cooling and fire extinguishing spray device for the slag conveyor belt includes a slag cooler 1 and a slag conveyor belt 2. The discharge end of the slag cooler 1 is located directly above the input end of the slag conveyor belt 2. At least one temperature measuring device 3 is fixedly installed above the slag conveyor belt 2 near the discharge end of the slag cooler 1 via a support. A spray device is also fixedly installed above the slag conveyor belt 2 via a support. The slag cooler 1, slag conveyor belt 2, temperature measuring device 3, and spray device are all existing and publicly known components. Thus, through the coordinated use of the slag cooler 1, slag conveyor belt 2, temperature measuring device 3, and spray device, real-time temperature measurement is achieved. When the temperature of the slag conveyor belt 2 becomes too high or catches fire, timely cooling and spraying are provided. This device is safe and reliable, facilitates operation, greatly improves detection efficiency, and reduces production costs and fire hazards.

[0018] The above-mentioned automatic cooling and fire extinguishing sprinkler system for slag conveyor belts can be further optimized and / or improved according to actual needs:

[0019] As required, the temperature measuring device 3 is an infrared temperature detector; the spraying device is a spray pipe 4 with both ends blinded, with liquid discharge holes evenly distributed along the axial direction at the bottom of the spray pipe 4, and nozzles fixedly installed on the liquid discharge holes of the spray pipe 4. The infrared temperature detector is a known and commonly used one; in this way, the infrared temperature detector can easily monitor the discharge temperature of the slag cooler 1 in real time and deal with abnormalities in a timely manner; the nozzles on the spray pipe 4 can easily spray water evenly, which is convenient for cooling the slag conveyor belt 2.

[0020] As attached Figure 1 As shown, a controller 5 is fixedly installed on the outside of the slag cooler 1 via a support. A liquid inlet pipe 6 is fixedly connected to the spray pipe 4, and a control valve 7 is fixedly installed on the liquid inlet pipe 6. The signal output terminal of the infrared temperature detector is electrically connected to the signal input terminal of the controller 5 via a wire, and the signal output terminal of the controller 5 is electrically connected to the signal input terminal of the control valve 7 via a wire. In this way, when the temperature measuring device 3 detects the presence of high-temperature slag, the over-temperature signal will be immediately transmitted to the on-site controller 5. The controller 5 will automatically activate and open the control valve 7 on the liquid inlet pipe 6. The liquid inlet pipe 4 will be evenly sprayed onto the slag conveyor belt 2 through the nozzles, achieving the purpose of timely spray cooling.

[0021] As needed, controller 5 is an automatic over-temperature sprinkler controller; control valve 7 is a solenoid valve. The solenoid valve can be a currently known and commonly used pneumatic solenoid valve. Since the automatic over-temperature sprinkler controller is currently known and commonly used, controller 5 can also be a currently known and commonly used automatic temperature controller. In the field, controller 5 can be fixedly installed in a stainless steel instrument control box, the dimensions of which can be 650×500×300mm. Controller 5 can also be a GY-200 infrared thermometer or an SWP-C803-02-23-HL-PT digital display meter; control valve 7 can also be a DN50PN16 pneumatic butterfly valve; and sprinkler pipe 4 can be a DN50 stainless steel sprinkler pipe.

[0022] As attached Figure 1 As shown, it also includes a first bracket 8, on which the slag cooler 1 is fixedly installed.

[0023] As attached Figure 1 As shown, it also includes a second support 9, and the slag conveying belt 2 is fixedly installed on the second support 9.

[0024] Advantages of this utility model:

[0025] (1) Easy to install and simple to operate.

[0026] (2) It can continuously monitor slag and its operation is reliable.

[0027] (3) It takes up little space.

[0028] (4) High safety and reliability, low cost.

[0029] (5) The controller 5 can be equipped with an external port, which can be connected to the DCS for control, alarm and display.

[0030] (6) This utility model uses the principle of infrared temperature measurement to continuously monitor the temperature of slag. When the slag is detected to be overheated, the slag conveyor belt 2 is immediately cooled down. The spray device eliminates potential hazards in the bud.

[0031] The working process of this utility model is as follows: When the infrared temperature detector detects the presence of high-temperature slag, the over-temperature signal will be immediately transmitted to the on-site over-temperature automatic spray controller. The over-temperature automatic spray controller will automatically link and open the control valve 7 on the liquid inlet pipe 6. The liquid in the spray pipe 4 will be evenly sprayed onto the slag conveyor belt 2 through the nozzle, so as to achieve the purpose of timely spraying and cooling. It can promptly detect and deal with the belt fire accident caused by slag over-temperature, eliminate potential hazards in the bud, reduce the risk of unplanned boiler shutdown, and ensure the safe and stable operation of the production unit.

[0032] The above technical features constitute the preferred embodiment of this utility model, which has strong adaptability and the best implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. An automatic cooling and fire extinguishing sprinkler system for slag conveyor belts, characterized in that... It includes a slag cooler and a slag conveyor belt. The discharge end of the slag cooler is located directly above the input end of the slag conveyor belt. At least one temperature measuring device is fixedly installed above the slag conveyor belt near the discharge end of the slag cooler via a support. A spraying device is fixedly installed above the slag conveyor belt via a support.

2. The automatic cooling and fire extinguishing sprinkler system for slag conveyor belts according to claim 1, characterized in that... The temperature measuring device is an infrared temperature detector; the spraying device is a spray pipe with both ends closed, with liquid discharge holes evenly distributed along the axial direction at the bottom of the spray pipe, and spray heads fixedly installed on the liquid discharge holes of the spray pipe.

3. The automatic cooling and fire extinguishing sprinkler system for slag conveyor belts according to claim 2, characterized in that... A controller is fixedly installed on the outside of the slag cooler via a support. A liquid inlet pipe is fixedly connected to the spray pipe, and a control valve is fixedly installed on the liquid inlet pipe. The signal output terminal of the infrared temperature detector is electrically connected to the signal input terminal of the controller via a wire, and the signal output terminal of the controller is electrically connected to the signal input terminal of the control valve via a wire.

4. The automatic cooling and fire extinguishing sprinkler system for slag conveyor belts according to claim 3, characterized in that... The controller is an automatic overheating sprinkler controller; the control valve is a solenoid valve.

5. The automatic cooling and fire extinguishing sprinkler system for slag conveyor belts according to claim 1, 2, 3, or 4, characterized in that... It also includes a first support, on which the slag cooler is fixedly installed.

6. The automatic cooling and fire extinguishing sprinkler system for slag conveyor belts according to claim 1, 2, 3, or 4, characterized in that... It also includes a second support, on which the slag conveyor belt is fixedly installed.

7. The automatic cooling and fire extinguishing sprinkler system for slag conveyor belts according to claim 5, characterized in that... It also includes a second support, on which the slag conveyor belt is fixedly installed.

Images