A new type of continuous porous foam ceramic and its preparation method

A foamed ceramic and porous technology, which is applied in the field of continuous porous foamed new ceramics and its preparation, can solve the problems of complex manufacturing process, heavy load, no air permeability, etc., and achieve short service life, great contribution, and easy corrosion Effect

Inactive Publication Date: 2020-02-14
大连宝昇国际贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned technologies all have the disadvantages of high cost, heavy weight and easy cracks.
The previous technology has the following defects: 1. The ceramic porous body using urethane resin is made of inorganic materials and organic materials, the manufacturing process is complicated, and the price of organic raw materials is high, and the manufacturing cost is about 30,000 to 70,000 yuan per square meter.
Cannot be used on a large scale in production
2. For the production of sound-absorbing materials and permeable ceramics, the sintered blocks of raw materials are mostly stone-like, with a particularly high specific gravity, mostly around 1.5 to 2. Such porous ceramics are heavy-loaded and brittle, which is not easy to use. convenient
3. Foam glass products, because they are independent bubbles, have no air permeability, and because they are low-quality glass, they have weak impact on heat and are prone to cracks.

Method used

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  • A new type of continuous porous foam ceramic and its preparation method
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Examples

Experimental program
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Effect test

Embodiment 1

[0016] A new type of continuous porous foamed ceramics, prepared from the following raw materials in the following proportions by weight: 60 parts of waste slag, 40 parts of clay, the particle size of the waste slag is 1mm.

[0017] The preparation method is to mix 60 parts by weight of waste slag, 40 parts of clay, and 20 parts of water into a solid state, knead it into a predetermined shape with a vacuum kneader, and dry it until the water content is below 1%. When the temperature reaches 700°C, the temperature is gradually raised in units of 20°C, and when the temperature reaches 850°C, the temperature is gradually raised in units of 10°C to make each particle explode explosively, and then use 1150°C Sintered into ceramic porous body.

Embodiment 2

[0019] A new type of continuous porous foamed ceramics, prepared from the following raw materials in proportion by weight: 70 parts of waste slag, 20 parts of clay, and 10 parts of bentonite. The particle size of the waste slag is 0.8mm.

[0020] The preparation method is to mix 70 parts by weight of waste slag, 20 parts of clay, 10 parts of bentonite and 25 parts of water into a solid state, knead it into a predetermined shape with a vacuum kneader, dry it until the water content is below 1%, and place it in the Sintering in the temperature range of 700°C-1000°C, when the temperature reaches 700°C, the temperature is gradually increased by 30°C as a unit, and when the temperature reaches 850°C, the temperature is gradually increased by 10°C as a unit, so that each particle is explosively bubbling, Later, it is sintered at 1000°C to form a ceramic porous body.

Embodiment 3

[0022] A new type of continuous porous foamed ceramics, prepared from the following raw materials in proportion by weight: 74 parts of waste slag, 18 parts of clay, and 8 parts of bentonite. The particle size of the waste slag is 1mm.

[0023] The preparation method is to mix 74 parts by weight of waste slag, 18 parts of clay, 8 parts of bentonite and 18 parts of water into a solid state, knead it into a predetermined shape with a vacuum kneader, dry it until the water content is below 1%, and place it in the Sintering in the temperature range of 700°C-1000°C, when the temperature reaches 700°C, the temperature is gradually raised in units of 35°C, and when the temperature reaches 850°C, the temperature is gradually increased in units of 10°C, so that each particle explodes. Later, it is sintered at 1100°C to form a ceramic porous body.

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Abstract

The invention provides novel continuous porous foamed ceramic and a preparation method thereof, and belongs to the technical field of ceramic material preparation. The novel continuous porous foamed ceramic is prepared from, by weight, 50-100 parts of dump slag, 18-50 parts of clay and 0-10 parts of bentonite; by means of the bubbling effect of sulfides of Mn and Fe in the dump slag, the volume is enlarged uniformly, and the ceramic bubbles continuously; the novel continuous porous foamed ceramic which is light in weight, capable of absorbing water, high in strength, capable of insulating heat, free of crack and high in quality is prepared at low price; the prepared novel continuous porous foamed ceramic can serve as sound-insulating and sound-absorbing plates arranged on the two sides of an expressway; the service life of the ceramic plates is 10 times or above that of metal materials, and the contribution to the society is huge; by utilizing 30% dump slag discharged in manufacture of ball-milled cast iron products in the wide range of manufacturing automobile engines, cast iron tap-water pipes and the like as the raw material, the waste is turned into wealth, so that the novel continuous porous foamed ceramic is low in cost.

Description

technical field [0001] The invention discloses a continuous porous foaming novel ceramic and a preparation method thereof, belonging to the technical field of preparation of ceramic materials. Background technique [0002] In the past, the production of porous ceramics with light weight and rigid body with continuous air holes generally used urethane resin to fill the pores with ceramic composition, and then burned the resin part to create pores. To make sound-absorbing materials and permeable ceramics, waste glass balls, coal sintered blocks, urban waste, tailings are dry pressed, and products with gaps between particles are used. During the high-temperature drying process, the molded material contains pyrolysis volatile components, which make it generate pores. The representative one is foam glass. However, most of them are independent single-hole bubbles, and the material of the product is not high-quality glass. [0003] However, the above-mentioned technologies all ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/138C04B33/13C04B38/02
CPCC04B33/13C04B33/138C04B38/02C04B2235/96C04B2235/9607C04B38/0074Y02P40/60
Inventor 板泽大辅于娜
Owner 大连宝昇国际贸易有限公司
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