CN103242927A

CN103242927A - Production technology and method for preparing lump coal by use of coal dust and river mud

Info

Publication number: CN103242927A
Application number: CN2012100284042A
Authority: CN
Inventors: 吴舒克
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-01
Filing date: 2012-02-01
Publication date: 2013-08-14

Abstract

The invention brings forward a production technology and a method for preparing lump coal by the use of coal dust and river mud. The scheme comprises the following steps: firstly screening raw coal with less than 6% of water content so as to obtain coal dust with granularity of being less than 3mm, naturally drying, stoving, crushing and sieving river mud dug out from a river to obtain a dry river mud powder with granularity of less than 3mm, putting the coal dust and the dry river mud powder into a drum-type mixer and stirring while adding 12% of water, pouring into a roller with a hopper after uniformly stirring so as to prepare wet lump coal, putting the prepared wet lump coal into a chain-belt drying baker and drying to obtain dry lump coal which can be directly used in a boiler as fire coal for combustion, wherein the addition amount of the dry river mud powder is controlled within 30%. The invention has the following beneficial effects: raw material resources for the production are rich, easily available and inexhaustible; production cost is low; the production technology is simple; and the product produced in the invention can be used for normal combustion in a boiler.

Description

A kind of production technique and method with coal dust and river silt clamp dog coal

Technical field

The present invention relates to a kind of complete processing of fire coal, at present energy scarcity, reduce the waste of the energy, turn waste into wealth, improve environment, a kind of production technique and method of utilizing coal dust and river silt clamp dog coal of proposition.

Background technology

Raw coal is being held product, can produced the coal dust of a large amount of different fineness in transit, coal dust can only the chamber of being used in combustion or the large-sized boiler of suspension burning on use, just undesirable at the middle-size and small-size grate firing boiler that generally uses, and pollute to surrounding environment to a great extent.The river silt aboundresources, contain combustible organic substance in the river silt, a large amount of river silt that annual defeated logical river course produces need go burning to the power station, now invent and a kind ofly be mixed and made into lumped coal with fine coal and river silt, can be used for using on the medium small boiler, turn waste into wealth, make it become not only the new forms of energy of economy but also environmental protection.

Summary of the invention

The present invention proposes a kind of production technique and method with coal dust and river silt clamp dog coal, scheme thes contents are as follows: earlier the raw coal of water content less than 6% scope sieved, filter out the coal dust of granularity size below 3mm, with the river silt that goes out from channel excavation through seasoning, oven dry, pulverize, the dry river mud powder of granularity size below 3mm that obtain of sieving put into drum mixer together and stirred, the add-on control of dry river mud powder is in 30% scope, the water yield of interpolation 12% in whipping process, pour into again after stirring in the nip drum machine of band hopper, make wet lump coal, the wet lump coal that will make again is put into the chain-belt type drying baker and dries, and the dried lump coal that obtains after the oven dry just can be directly used in boiler and use as fired coal combustion.

Beneficial effect of the present invention is that the raw material resources of manufacturing are rich and easy to get, inexhaustible, and production cost is low, and production technique is fairly simple, and the product of manufacturing can satisfy the trouble-free burning of boiler.

Description of drawings

It is a kind of technological process of production with coal dust and river silt clamp dog coal in the accompanying drawing 1.

Embodiment

A kind of production technique and method with coal dust and river silt clamp dog coal: earlier the raw coal of water content less than 6% scope sieved, filter out the coal dust of granularity size below 3mm, with the river silt that goes out from channel excavation through seasoning, oven dry, pulverize, the dry river mud powder of granularity size below 3mm that obtain of sieving put into drum mixer together and stirred, the add-on control of dry river mud powder is in 30% scope, the water yield of interpolation 12% in whipping process, pour into again after stirring in the nip drum machine of band hopper, make wet lump coal, the wet lump coal that will make again is put into the chain-belt type drying baker and dries, and the dried lump coal that obtains after the oven dry just can be directly used in boiler and use as fired coal combustion.

Claims

1. production technique and method with coal dust and a river silt clamp dog coal, it is characterized in that: earlier the raw coal of water content less than 6% scope sieved, filter out the coal dust of granularity size below 3mm, with the river silt that goes out from channel excavation through seasoning, oven dry, pulverize, the dry river mud powder of granularity size below 3mm that obtain of sieving put into drum mixer together and stirred, the add-on control of dry river mud powder is in 30% scope, the water yield of interpolation 12% in whipping process, pour into again after stirring in the nip drum machine of band hopper, make wet lump coal, the wet lump coal that will make again is put into the chain-belt type drying baker and dries, and the dried lump coal that obtains after the oven dry just can be directly used in boiler and use as fired coal combustion.