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Heat insulation material

A technology of thermal insulation and raw materials, applied in the field of materials, can solve the problems of poor sealing performance of thermal insulation materials, easy powder drop during assembly and replacement, etc.

Active Publication Date: 2018-08-24
LUYANG ENERGY SAVING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The seal between the crystallizer and the dummy head of the continuous casting machine requires the use of thermal insulation materials, but the thermal insulation materials currently used have poor sealing performance and are prone to powder loss during assembly and replacement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Weigh 50 parts by weight of ceramic fiber, 10 parts by weight of polypropylene fiber, 15 parts by weight of newspaper and 15 parts by weight of kaolin, add the weighed materials and 10,000 parts by weight of water into a volt beater, fully beat and mix, and the beating speed is 300r / min, add 5 parts by weight of starch and 5 parts by weight of acrylic acid emulsion after beating for 20 minutes, and continue beating for 5 minutes; 60r / min, weigh 2 parts by weight of aluminum sulfate solution and 3 parts by weight of anionic polyacrylamide solution into the slurry, stir until the supernatant appears around the slurry; input the adjusted flocculated slurry into the forming tank, It is formed by a vacuum suction filtration process, and then dried at a temperature of 80°C. After drying, a slab is obtained. The slab is calcined at 170°C for 0.5h in a calciner to obtain a thermal insulation material.

Embodiment 2

[0056] Weigh 60 parts by weight of basalt fiber, 10 parts by weight of polyethylene fiber, 10 parts by weight of newspaper and 10 parts by weight of attapulgite, add the weighed materials and 10,000 parts by weight of water into the volt beater and fully beat and mix evenly. 500r / min, add 3 parts by weight of starch and 7 parts by weight of acrylic acid emulsion after beating for 18 minutes, and continue beating for 8 minutes; 80r / min, weigh 3 parts by weight of polyaluminum chloride solution and 2 parts by weight of anionic polyacrylamide solution into the slurry, stir until the supernatant appears around the slurry; input the flocculated slurry into In the forming pool, the vacuum suction filtration process is used to form, and then dried at a temperature of 90°C. After drying, the slab is obtained, and the slab is calcined at 130°C for 1.5 hours in a calciner to obtain thermal insulation materials.

Embodiment 3

[0058] Weigh 70 parts by weight of quartz fiber, 5 parts by weight of polyethylene fiber, 10 parts by weight of newspaper and 10 parts by weight of coal gangue fine powder, add the weighed materials and 10,000 parts by weight of water into a volt beater, fully beat and mix, and beat The speed is 800r / min, add 2 parts by weight of starch and 3 parts by weight of flexible acrylic emulsion after beating for 15 minutes, and continue beating for 10 minutes; Stirring speed is 100r / min, weigh 4 parts by weight of polyaluminum chloride solution and 4 parts by weight of anionic polyacrylamide solution into the slurry, stir until the supernatant appears around the slurry; put the adjusted flocculated slurry The material is input into the forming tank, formed by vacuum suction filtration process, and then dried at a temperature of 105°C. After drying, the slab is obtained, and the slab is calcined at 150°C for 1 hour in a calciner to obtain thermal insulation materials.

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PUM

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Abstract

The invention belongs to the field of materials and particularly relates to a heat insulation material. The heat insulation material is prepared by: a), mixing raw materials and water, and beating toobtain pulp, wherein the raw materials include inorganic fibers, organic fibers, newspaper, an organic binder and an inorganic binder, the inorganic fibers include one or more of ceramic fiber, basaltfiber and quartz fiber, and the organic fibers include polyethylene fiber and / or polypropylene fiber; b), mixing the pulp with a flocculating agent to obtain flocculated pulp; c), dewatering the flocculated pulp, and calcining to obtain the heat insulation material. The components in the heat insulation material are tightly combined together, showing excellent sealing performance and mechanical strength, with no picking occurred during use.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a thermal insulation material. Background technique [0002] In the metallurgical industry, continuous casting machines are relatively commonly used equipment; generally speaking, the production process of continuously casting high-temperature molten steel into billets with a certain cross-sectional shape and a certain size is called continuous casting steel, and completing this process The required equipment is called continuous casting equipment. Among them, the electromechanical and hydraulic integration of steel pouring equipment, continuous casting machine body equipment, cutting area equipment, dummy bar collection and conveying equipment constitutes the core part of continuous casting steel equipment, which is customarily called continuous casting machine. [0003] The continuous casting machine includes a crystallizer. As a very important part of the continuous casting machine, ...

Claims

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Application Information

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IPC IPC(8): C04B28/00
CPCC04B28/00C04B2201/32C04B2201/50C04B14/46C04B16/0633C04B18/241C04B24/38C04B24/2641C04B22/148C04B24/2652C04B14/4643C04B16/0625C04B22/12C04B14/4631
Inventor 张成贺任大贵刘超岳耀辉葛振鹏张成
Owner LUYANG ENERGY SAVING MATERIALS CO LTD
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