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Material formula for preparing gasification furnace slag ceramisite and production method of ceramisite

A production method, coal gasification slag technology, applied in the production of ceramic materials, clay products, ceramic products, etc., can solve the problems of waste, pollution of environmental resources, etc., and achieve the effects of reducing usage, lowering calcination temperature, high hardness and strength

Inactive Publication Date: 2012-03-14
RES INST OF SHAANXI YANCHANG PETROLEUM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rise of my country's coal chemical industry, there are many coal chemical projects that have been built, rebuilt or will be built, and the gasification slag is a by-product of the gasification process. If it is not properly utilized and discarded for landfill treatment, Undoubtedly, it will seriously pollute the environment and cause a lot of waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In this embodiment, the raw material weight ratio is:

[0023] 85% of coal gasifier slag;

[0024] Clay 10%;

[0025] CaO 5%.

[0026] The production method of ceramsite in this embodiment is as follows:

[0027] 1) Mix the coal gasifier slag, clay and CaO evenly and put them into the ball mill for 40 minutes;

[0028] 2) Sieving through a vibrating screen with a sieve opening of 0.125mm;

[0029] 3) Add the under-sieve to water with a mass ratio of 15% and stir;

[0030] 4) The uniformly stirred materials are granulated and formed in the forming machine, the diameter of the raw material particles is about 10mm, and the raw materials are naturally air-dried.

[0031] 5) The raw material ceramsite ball embryo is sent to the sintering cellar for roasting, the sintering temperature is 1050℃, and the roasting time is 1.1 hours. After the end, it is cooled to below 600℃ in the furnace, and finally discharged from the kiln and cooled naturally to make coal gasification furnace slag ceramsi...

Embodiment 2

[0033] In this embodiment, the raw material weight ratio is:

[0034] 80% of coal gasifier slag;

[0035] Clay 12%;

[0036] Glass powder 8%.

[0037] The production method of ceramsite in this embodiment is as follows:

[0038] 1) Mix the coal gasifier slag, clay and glass powder evenly and put them into the ball mill for 40 minutes;

[0039] 2) Sieving through a vibrating screen with a sieve opening of 0.125mm;

[0040] 3) In terms of mass ratio, add 20% water to stir under the sieve;

[0041] 4) The uniformly stirred materials are granulated and formed in the forming machine, the diameter of the raw material particles is about 10mm, and the raw materials are naturally air-dried.

[0042] 5) The raw material ceramsite ball embryo is sent to the sintering kiln for roasting, the sintering temperature is 1100℃, and the roasting time is 1.2 hours. After the completion, it is cooled to below 600℃ in the furnace, and finally discharged from the kiln and naturally cooled to make coal gasificatio...

Embodiment 3

[0044] In this embodiment, the raw material weight ratio is:

[0045] 90% of coal gasifier slag;

[0046] Clay 5%;

[0047] CaO 5%.

[0048] The production method of ceramsite in this embodiment is as follows:

[0049] 1) Mix the coal gasifier slag, clay and CaO evenly and put them into the ball mill for 30 minutes;

[0050] 2) Sieving through a vibrating screen with a sieve opening of 0.125mm;

[0051] 3) In terms of mass ratio, add 10% water and stir under the sieve;

[0052] 4) The uniformly stirred materials are granulated and formed in the forming machine, the diameter of the raw material particles is about 10mm, and the raw materials are naturally air-dried.

[0053] 5) The raw material ceramsite ball embryo is sent to the sintering kiln for roasting, the sintering temperature is 1000℃, and the roasting time is 1.2 hours. After the completion, it is cooled to below 600℃ in the furnace, and finally discharged from the kiln and cooled naturally to make coal gasification furnace slag cer...

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Abstract

The invention discloses a material formula for preparing a gasification furnace slag ceramisite and a production method of the ceramisite. The formula comprises the following components by weight percent: 80-95% of coal gasification furnace slag, 0-15% of clay and 5-15% of fluxing agent, wherein the fluxing agent is CaO, MgO, NaO, CaSO4 or glass powder. The coal gasification furnace slag is used as the raw material so that the prepared ceramisite product has more excellent adsorption property and wider application range.

Description

Technical field [0001] The invention belongs to the solid waste utilization technology in the field of environmental protection and comprehensive utilization of resources, and relates to a method for utilizing coal gasification to produce solid waste, in particular to a material formula for manufacturing gasification slag ceramsite and a method for producing ceramsite. The ceramsite prepared by the method is mainly used as a biofilm mount in a sewage plant, a filler for a trickling filter for odor treatment, a filler for a light-weight and high-strength building material, and a heat preservation and sound insulation material. Background technique [0002] With the ever-decreasing petroleum resources, the use of coal as a raw material to produce energy and chemical products has increasingly demonstrated its use value and economic advantages, and coal gasification, as the most important process in the coal chemical industry chain, provides syngas raw materials for subsequent product...

Claims

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Application Information

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IPC IPC(8): C04B38/00C04B33/00C04B33/135
CPCY02P40/60
Inventor 张积耀闫鹏王香增王书宝张书琴张华
Owner RES INST OF SHAANXI YANCHANG PETROLEUM GRP
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