Method for preventing high-temperature fallen material from scalding conveyor belt

Abstract

The invention discloses a method for preventing a high-temperature fallen material from scalding a conveyor belt. A temperature detection device (11) is installed between a discharging port of a high-temperature material (1) in the last process and a material receiving hopper (2) of a material receiving conveyor belt machine (4) in the following process; a cooling water nozzle set (13) and a cooling water nozzle set (15) are installed respectively at a material receiving hopper rear portion (12) and a material receiving hopper front portion (14) and above the conveyor belt (9); each cooling water nozzle set is connected with a cooling water branch pipe (16) independently; an electromagnetic valve (18) and a stop valve (19) are installed on each cooling water branch pipe. When heat dissipated from an upper process fallen material is sensed by the temperature detection device, a detected temperature signal is sent to a signal input circuit (21) of a controller by the temperature detection device, after comparison operation is conducted by a microprocessor (22), a water spraying control signal is output to a signal output circuit (24), and therefore the electromagnetic valve of the nozzle set on each branch pipe is controlled to be opened and closed.

Description

technical field [0001] The invention relates to a belt conveying system in which high-temperature materials fall on the transport belt in the fields of metallurgical sintering and coking, etc., especially at the outlet of the sintering ring cooler and the coke port of the CDQ grate. The invention relates to an occasion where the transportation tape is scalded and damaged, and belongs to the technical field of production and transportation of metallurgical bulk materials. Background technique [0002] In order to prevent the transported materials from being scalded and damaging the transport tape, under normal production conditions, the high-temperature materials in the upstream process are fully cooled before being unloaded on the downstream transport tape. At the same time, the downstream receiving transport tape will use high-temperature resistant tape. For example: in the metallurgical sintering system, the high-temperature sinter will be cooled by the ring cooler, and th...

AI Technical Summary

Problems solved by technology

The disadvantages of this technology are: 1. Manually judge whether there is high-temperature material discharge in the upstream system, and the accuracy and timeliness of the judgment are poor; When the materials are processed, water spraying treatment is carried out at the scene. This method often prevents the discharged high-temperature materials from being cooled in time, which has caused scald and damage to the transport tape; 3. The existing technology uses water spraying on the surface of the transport materials In the way of showering and cooling, when the shower water contacts the surface of the material, it is vaporized by the high-temperature material and then evaporates. It is difficult to reach the part where the high-temperature material contacts the transport tape at the bottom of the material layer, and cannot effectively prevent the transport tape from being scalded and damaged; 4. The existing technology adopts The method of spraying water to cool down the surface of the transported materials makes the water content of the finished materials too much, resulting in a decline in the quality of the finished materials; , causing a large amount of water vapor to evaporate and sewage to flow, polluting the environment; 6. The existing technology adopts manual monitoring and flushing operation, the mental pressure of the staff is high, and a large amount of water vapor is generated when flushing high-temperature materials, the working environment is poor, and the labor intensity is high.

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