Inorganic lightweight aggregate spray cooling system and inorganic lightweight aggregate spray cooling method

Abstract

The invention discloses an inorganic lightweight aggregate spray cooling system, belongs to the technical field of inorganic lightweight aggregate production and processing and aims to solve the problem that in the prior art, an ironed phenomenon is easily caused as an inorganic lightweight aggregate is not cooled thoroughly in production. The system is characterized by comprising gas-solid separating equipment, a spraying device for spraying water mist to an inner cavity of the gas-solid separating equipment and a water tank for storing clean water; a pipeline is connected between the water tank and the spraying device, and a water pump and a valve for controlling the pipeline to open and close are mounted on the pipeline. Water mist is sprayed through the spraying device while gas-solidseparation is carried out in the gas-solid separating equipment, so that purposes of cooling the inorganic lightweight aggregate thoroughly and reducing the ironed phenomenon are achieved. The invention further discloses a method of cooling the inorganic lightweight aggregate by employing the cooling system correspondingly. The cooling method has the advantages of cooling thoroughly and being capable of improving the stability of the inorganic lightweight aggregate production process and the product quality of the inorganic lightweight aggregate.

Description

technical field [0001] The invention belongs to the technical field of expanded inorganic lightweight aggregate processing, and more specifically relates to an inorganic lightweight aggregate spray cooling system and a direct spray cooling method. Background technique [0002] In the production process of inorganic lightweight aggregate using natural gas vertical extruder furnace, due to the high temperature process of the production process and the physical characteristics of high heat insulation and strong abrasiveness of the aggregate itself, there are some very serious problems in the existing production process. Practical problems that are difficult to deal with properly. These problems have caused great troubles to product quality control and exhaust emissions. [0003] figure 1 Shown is the commonly used lightweight aggregate production flow chart. In the production of lightweight aggregate, especially in the production process of expanded perlite, the initial temp...

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Problems solved by technology

Although this method is economical and convenient, it brings the following problems: 1. When the conveying air pressure is too high, a good cooling effect can be obtained, but it will cause the skin of the product particles to fall off and the particles to be directly broken, which will affect the product quality; 2. When the air conveying pressure is reduced, the occurrence of particle breakage and peeling can be reduced to some extent. However, since the material particle is a kind of heat insulating material with high self-insulation performance, the length of the air conveying pipeline remains unchanged. Under the circumstances, although the temperature of the air transported into the warehouse does not change much from the air temperature of the high-pressure pneumatic transport, in fact, the interior of these lightweight aggregate particles has not been fully cooled, and there is still a lot of heat stored. Once the material is transported After entering the finished product warehouse, after a certain period of time, the heat stored in the particles will be released. After such finished materials are put into the packaging bag, the phenomenon of scalding the packaging bag will still occur.

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