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Explain the construction process of hot-selling refractory materials
Date:2020-02-26 14:52 From:Zhengzhou Sunrise Refractory Author:admin
Insulation and refractory materials are used in the lining of heating furnaces, heat treatment furnaces, quenching furnaces and other refractory linings in metallurgical, petrochemical, mechanical and electronic industries, as well as the outer layers of refractory layers and various types of high-temperature pipelines. Sealing material. It can also be used exclusively for the thermal insulation layer and thermal insulation layer of thermal equipment. Good quality thermal insulation refractory materials can replace general dense refractory masonry, which can save energy consumption and reduce construction costs.
The task of thermal insulation and refractory construction is to combine the main layer thermal insulation material, reinforcement material and surface layer material into a thermal insulation structure in accordance with design regulations. At present, there are several commonly used construction techniques for thermal insulation structures:
1. Prefabricated insulation. The material of the main insulation layer and the outer protective layer are made of fixed plastic. On-site construction only needs to be in place and fixed according to the specifications. The insulation of general special equipment mostly adopts the assembly type insulation structure.
2. Banding method for heat preservation. The binding method for heat insulation is to directly wrap the insulation board, tube shell, tube or arc block made of porous insulation material or mineral fiber insulation material on the equipment and pipes, and use 1.2 ~ 2mm galvanized iron wire to fix the outside. Lashing insulation is a widely used form of insulation structure.
3. Insulation by filling method. Filling method is to directly fill loose mineral fiber material or porous granular material around the equipment and pipes to achieve a certain degree of compactness. In general, the sealing and heat insulation of boiler through-wall pipes, the detachable heat insulation structure of valve flanges and expansion joints are all filled with insulation.
4. Insulation by application method. An amorphous insulation material (such as expanded perlite) is used to add a binder and a coagulant. According to a certain proportion, add cement and stir evenly to become a plastic mud ball and apply it to the insulation pipe equipment. Smearing insulation is a traditional insulation structure and technology, which is convenient for branch construction, filling holes, equipment and pipelines that need to be repaired, and insulation of all irregular insulation bodies.
5, spray structure insulation. Spraying structure insulation uses special equipment to spray the organic foam insulation material to the insulation surface to form a spraying insulation structure.
6, paste method insulation. Adhesive insulation is the use of an adhesive to attach a thermal insulation felt to a metal or ceramic surface to form a thermal insulation structure. This method is more suitable for the construction of refractory fiber felt.
7, metal reflective insulation. Metal reflective insulation is made of stainless steel heat-resistant steel foil with multiple layers of heat shield. The air gap of each layer of heat shield is about 1.5mm. It is mainly used to reduce radiation and convective heat transfer. .
In the end, Sunrise Refractories wants to tell you that industrial furnaces built with general refractory materials generally have low energy utilization rates, and thermal conductivity is an important important data for the design of high temperature thermal equipment. Building a kiln can reduce wall heat loss, improve thermal efficiency, increase the output of thermal equipment, reduce energy consumption, and work more cost-effectively.
The task of thermal insulation and refractory construction is to combine the main layer thermal insulation material, reinforcement material and surface layer material into a thermal insulation structure in accordance with design regulations. At present, there are several commonly used construction techniques for thermal insulation structures:
1. Prefabricated insulation. The material of the main insulation layer and the outer protective layer are made of fixed plastic. On-site construction only needs to be in place and fixed according to the specifications. The insulation of general special equipment mostly adopts the assembly type insulation structure.
2. Banding method for heat preservation. The binding method for heat insulation is to directly wrap the insulation board, tube shell, tube or arc block made of porous insulation material or mineral fiber insulation material on the equipment and pipes, and use 1.2 ~ 2mm galvanized iron wire to fix the outside. Lashing insulation is a widely used form of insulation structure.
3. Insulation by filling method. Filling method is to directly fill loose mineral fiber material or porous granular material around the equipment and pipes to achieve a certain degree of compactness. In general, the sealing and heat insulation of boiler through-wall pipes, the detachable heat insulation structure of valve flanges and expansion joints are all filled with insulation.
4. Insulation by application method. An amorphous insulation material (such as expanded perlite) is used to add a binder and a coagulant. According to a certain proportion, add cement and stir evenly to become a plastic mud ball and apply it to the insulation pipe equipment. Smearing insulation is a traditional insulation structure and technology, which is convenient for branch construction, filling holes, equipment and pipelines that need to be repaired, and insulation of all irregular insulation bodies.
6, paste method insulation. Adhesive insulation is the use of an adhesive to attach a thermal insulation felt to a metal or ceramic surface to form a thermal insulation structure. This method is more suitable for the construction of refractory fiber felt.
7, metal reflective insulation. Metal reflective insulation is made of stainless steel heat-resistant steel foil with multiple layers of heat shield. The air gap of each layer of heat shield is about 1.5mm. It is mainly used to reduce radiation and convective heat transfer. .
In the end, Sunrise Refractories wants to tell you that industrial furnaces built with general refractory materials generally have low energy utilization rates, and thermal conductivity is an important important data for the design of high temperature thermal equipment. Building a kiln can reduce wall heat loss, improve thermal efficiency, increase the output of thermal equipment, reduce energy consumption, and work more cost-effectively.
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