CN1061427A

CN1061427A - Water-proof briquette coal

Info

Publication number: CN1061427A
Application number: CN 91111665
Authority: CN
Inventors: 刘一林; 刘志友; 侯文杰; 张培华; 张志城; 刘国庆; 张继恒; 张继辉; 宋志彬
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-12-21
Filing date: 1991-12-21
Publication date: 1992-05-27

Abstract

The present invention is a kind of water-proof briquette coal, and water-proof briquette coal is made by bunker coal and cement mixing, and wherein bunker coal accounts for 85～99%, and cement accounts for 1～15%, bunker coal can be: 1, coal is as bituminous coal, hard coal; 2, low value fuel is as flyash, flue dust, coal gangue etc.; 3, the mixture of coal and low value fuel.Water-proof briquette coal has excellent waterproof, moisture resistance performance.Once making, just can be not broken because of water, loose thereby solved the waterproof difficult problem that moulded coal is stored in manufacturer and user, help promoting the use of of briquette prod.

Description

Water-proof briquette coal

The invention belongs to a kind of coal product, particularly a kind of water-proof briquette coal.

The moulded coal of manually making is the developing direction of world today's industry and civil, it not only can make full use of coal dust, improve burning, save energy, can also reduce flue dust greatly, reduce environmental pollution, a lot of patents about moulded coal are arranged in this respect, yet they mainly are the processes of utilizing artificial system coal, the purpose that realizes saving fat coal, the disclosed a kind of artificial coal of CN87102009A for example, promptly be with a spot of coal (or without coal) and a large amount of low value fuel flyash or coal gangue etc., add earth and ignition dope and other compositions, make moulded coal.The variable inferior fuel of this type of moulded coal is a high-grade fuel, and cost is low, remarkable in economical benefits.But there is a common defective again in they, promptly store inconvenience, when the moulded coal of making is met water, can be pulverized after making moist, thus for the producer and user, all must build storehouse and deposit, thereby make the cost rising, influenced promoting the use of of moulded coal.

The purpose of this invention is to provide a kind of with coal or low value fuel as main raw material, add waterproof binding agent again: cement is made the technical scheme of water-proof briquette coal, to overcome weak point of the prior art.

The object of the present invention is achieved like this.

The major ingredient of water-proof briquette coal is the powder bunker coal, and has added waterproof binding agent: cement, and its weight percent is:

Bunker coal 85～99%

Cement 1～15.

Bunker coal in the water-proof briquette coal can be: (1), coal are as bituminous coal, hard coal; (2) low value fuel is as flyash, flue dust, coal gangue etc. (contain coal amount about 40%); (3), the mixture of coal and low value fuel.Cement can be the finished cement from 400～800 each label.

Make water-proof briquette coal, bunker coal will be pulverized earlier, its granularity is below 0.3 millimeter, adds cement again and water stirs, and makes different shape after the homogenizing, for example: coal cinder, coal briquette, honeycomb briquette or the like.

When water-proof briquette coal was made up of coal and cement, its weight percent was:

Coal 85～98;

Cement 2～15.

When water-proof briquette coal was made up of low value fuel and cement, its weight percent was:

Low value fuel 87～99;

Cement 1～13.

When water-proof briquette coal was made up of coal, low value fuel and cement, its weight percent was:

Coal 30～80

Low value fuel 10～65;

Cement 3～15.

The present invention makes the cement that water-proof briquette coal adds, and in manufacturing processed, through mixing with water physical change takes place, make moulded coal have good formability and hardness, and, just can not pulverize because of moist, water logging again once making, and element such as the calcium that contains in the cement, silicon, aluminium, iron, also have combustion-supporting effect simultaneously, improved the calorific value of moulded coal, in addition, after the moulded coal burning that the present invention makes, no coking phenomenon, lime-ash is powdery, is convenient to the deashing deslagging.

The major ingredient bunker coal of water-proof briquette coal can be selected according to the use occasion of moulded coal, when industrial sector uses and require calorific value higher, can adopt whole fat coals; Take second place, can adopt the mixture of coal and low value fuel; General family's civil time, can adopt a small amount of coal or not have coal, make based on the raw material of low value fuel.If desired, also can add an amount of coke fines or other combustion-supporting compositions in the raw material of above-mentioned various moulded coals, improving its performance, and water resistance is constant.

Below enumerate nine of embodiment, with explanation the present invention.

Embodiment 1:

Coal 90%;

Cement 10%.

Embodiment 2:

Coal 85%;

Cement 15%.

Embodiment 3:

Flyash 93%;

Cement 7%.

Embodiment 4:

Flyash 99%;

Cement 1%.

Embodiment 5:

Flue dust 27%;

Coal 70%;

Cement 3%.

Embodiment 6:

Flyash 60%;

Coal 30%;

Cement 10%.

Embodiment 7:

Coal 80%;

Coke powder 15%;

Cement 5%.

Embodiment 8:

Flyash 60%;

Coke powder 32%;

Cement 8%.

Embodiment 9:

Coal gangue 75%;

Coke powder 10%;

Cement 15%.

Claims

1, a kind of water-proof briquette coal comprises the powder bunker coal, it is characterized in that also having added waterproof binding agent: cement; Its weight percent is:

Bunker coal 85～99;

Cement 1～15.

2, according to the described water-proof briquette coal of claim 1, it is characterized in that bunker coal is: (1) coal is as bituminous coal, hard coal; (2) low value fuel is as flyash, flue dust, coal gangue; (3) mixture of coal and low value fuel.

3, according to claim 1 or 2 described moulded coals, it is characterized in that moulded coal is made up of coal and cement, its weight percent is:

Coal 85～98;

Cement 2～15.

4, according to claim 1 or 2 described moulded coals, it is characterized in that moulded coal is made up of low value fuel and cement, its weight percent is:

Low value fuel 87～99;

Cement 1～13.

5, according to claim 1 or 2 described moulded coals, it is characterized in that moulded coal is made up of coal, low value fuel and cement, its weight percent is:

Coal 30～80;

Low value fuel 10～65;

Cement 3～15.

6, according to claim 1 or 3 described moulded coals, it is characterized in that the moulded coal formed by coal and cement, its preferably weight percent be:

Coal 90～95;

Cement 5～10.

7, according to claim 1 or 4 described moulded coals, it is characterized in that the moulded coal formed by low value fuel and cement, its preferably weight percent be:

Low value fuel 92～97;

Cement 3～8.

8, according to claim 1 or 5 described moulded coals, it is characterized in that the moulded coal formed by coal, low value fuel and cement, its preferably weight percent be:

Coal 40～60;

Low value fuel 30～50;

Cement 7～11.