CN104130817A

CN104130817A - Purified coal

Info

Publication number: CN104130817A
Application number: CN201310178668.0A
Authority: CN
Inventors: 崔少周
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-02
Filing date: 2013-05-02
Publication date: 2014-11-05

Abstract

The invention relates to purified coal. The objective of the invention is to overcome the problems that the amount of flue dust and sulfur dioxide discharged after combustion of coal is great and the environment is severely polluted in the prior art. In the purified coal, common coal accounts for 70 to 75% of the total weight, an accessory material accounts for 20 to 25% of the total weight, and a catalytic sulfur fixing agent accounts for 5% of the total weight. The accessory material may be one selected from the group consisting of inferior coal, fly ash and gangue or a mixture of more than one selected from the group, wherein a mixing ratio is not limited. The catalytic sulfur fixing agent comprises, on the basis of the gross weight of the catalytic sulfur fixing agent, 50% of magnesium oxide, 20% of silica, 10% of aluminum oxide, 10% of ferric oxide and 10% of boron trioxide, and the above-mentioned components are crushed and uniformly mixed so as to prepare the catalytic sulfur fixing agent. The purified coal has the advantage that discharge of flue dust and sulfur dioxide is reduced.

Description

A kind of coal that purifies

Technical field:

The present invention relates to a kind of coal that purifies.

Background technology:

Flue dust and the amount of sulfur dioxide of when coal combustion, discharging are large, serious environment pollution; In addition, at present very low to the utilization ratio of low grade coal, flyash, coal gangue etc., majority has all been thrown away in vain, causes the waste of resource.

Summary of the invention:

Flue dust and sulphur dioxide emission when technical problem to be solved by this invention is to provide one and can reduces coal combustion, and the purification coal that can make full use of low grade coal, flyash, coal gangue etc.

Above-mentioned purpose is achieved in that formula comprises that (described common coal refers to the coal of calorific value more than 3500 kilocalories to common coal, auxiliary material and catalytically fixed sulphur agent down together),, wherein common coal accounts for the 70-75% of gross weight, auxiliary material accounts for the 20-25% of gross weight, and catalytically fixed sulphur agent accounts for 5% of gross weight.

Described auxiliary material comprises low grade coal, flyash, coal gangue, can be both their one wherein, can be also any several mixture, and blending ratio is not limit.

Described catalytically fixed sulphur agent comprises magnesium oxide, silicon-dioxide, aluminium sesquioxide, ferric oxide, boron trioxide, wherein magnesium oxide accounts for 50% of catalytically fixed sulphur agent gross weight, silicon-dioxide accounts for 20% of catalytically fixed sulphur agent gross weight, aluminium sesquioxide accounts for 10% of catalytically fixed sulphur agent gross weight, ferric oxide accounts for 10% of catalytically fixed sulphur agent gross weight, and boron trioxide accounts for 10% of catalytically fixed sulphur agent gross weight; They are pulverized and mixed evenly.

Purify the making method of coal: the purification coal preparing is according to the above ratio put into the broken machine click of click broken, more just mix and can use with stirrer; In the time that needs are made purification coal moulded coal and are used, by the purification coal pulverizer preparing according to the above ratio, then stir with stirrer, then make moulded coal with molding coal machine.

Advantage of the present invention is: because catalytically fixed sulphur agent has the effect that reduces flue dust and sulfur dioxide emissions, in addition the auxiliary material sulphur content in formula is low, so with common coal facies ratio, soot emissions can reduce 40-50%, sulfur dioxide emissions can reduce 30-40%, again owing to containing the low grade coal, flyash, the coal gangue that account for formula gross weight 20-25% in formula, realize the making full use of of low grade coal, flyash, coal gangue, economize on resources.

Embodiment:

Formula comprises that (described common coal refers to the coal of calorific value more than 3500 kilocalories to common coal, auxiliary material and catalytically fixed sulphur agent down together),, wherein common coal accounts for 70% or 72% or 75% of gross weight, auxiliary material accounts for 20% or 22% or 25% of gross weight, and catalytically fixed sulphur agent accounts for 5% of gross weight.

Claims

1. purify a coal, it is characterized in that: formula comprises common coal, auxiliary material and catalytically fixed sulphur agent, and wherein common coal accounts for the 70-75% of gross weight, and auxiliary material accounts for the 20-25% of gross weight, and catalytically fixed sulphur agent accounts for 5% of gross weight.

2. according to purification coal claimed in claim 1, it is characterized in that: described auxiliary material comprises low grade coal, flyash, coal gangue, can be both their one wherein, can be also any several mixture, and blending ratio is not limit.

3. according to purification coal claimed in claim 1, it is characterized in that: described catalytically fixed sulphur agent comprises magnesium oxide, silicon-dioxide, aluminium sesquioxide, ferric oxide, boron trioxide, wherein magnesium oxide accounts for 50% of catalytically fixed sulphur agent gross weight, silicon-dioxide accounts for 20% of catalytically fixed sulphur agent gross weight, aluminium sesquioxide accounts for 10% of catalytically fixed sulphur agent gross weight, ferric oxide accounts for 10% of catalytically fixed sulphur agent gross weight, and boron trioxide accounts for 10% of catalytically fixed sulphur agent gross weight; They are pulverized and mixed evenly.