CN1285391A

CN1285391A - Briquet and production technology

Info

Publication number: CN1285391A
Application number: CN 00123028
Authority: CN
Inventors: 东旭昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-27
Filing date: 2000-09-27
Publication date: 2001-02-28

Abstract

The present invention discloses a briquette and its production process. It is characterized by that raw coal and coal slime are used as main raw material, biochemical sludge is used as ingredient and the carbide slay and clay are used as adhesive and sulfur-fixing agent, and its compositions include (wt%) 20-30% of biochemical sludge, 40-50% of raw coal, 15-20% of coal slime, 1-4% of carbide slay, 1-5% of clay, 1-4% of combustion adjuvent and 0.5-1% of deodoriser. Said invented production method is simple, production cost is low, it can save coal by 10-25%, reduce discharge of sulfur dioxide by 60-75%, can greatly reduce smock dust and nitrogen oxide concentration, and can raise furnace cavity tomp. by 100-150 deg.C, and has no secondary pollution.

Description

Moulded coal and production technique

The present invention relates to a kind of moulded coal, also relate to the production technique of this kind moulded coal.

Present industrial shaping coal helps environmental protection in order to save raw coal, adds binding agent and sulphur-fixing agent in making the moulded coal process, is a kind of solid sulphur formed coal of 97106764 as the patent No., and its composition is: coal dust 90-98%, binding agent 1-3%, sulphur-fixing agent 1-7%.The patent No. is a kind of solid sulfur clean shaping coal for industry of 98118798, and its composition is: bituminous coal coal slime 60-70%, anthracite culm 20-30%, sulphur-fixing agent CA08-10%.These two kinds of moulded coals, it is few to save raw coal, and after the burning, flue dust, oxynitride and sulfur dioxide concentration are higher.

The object of the present invention is to provide a kind of heat output height, save raw coal, reduce sulphur dioxide emission, reduce flue dust and nitrous oxides concentration, help environmental protection and energy-conservation moulded coal.

Another object of the present invention is to provide the production technique of moulded coal.

The object of the present invention is achieved like this: it is made up of biochemical sludge, raw coal, coal slime, carbide slag, white clay, ignition dope, the agent that eliminates the unusual smell, with raw coal, coal slime is main raw material, be used biochemical sludge, with carbide slag, white clay is binding agent and sulphur-fixing agent, and its proportioning components is: (weight ratio) biochemical sludge 20-30%; Raw coal 40-50%; Coal slime 15-20%; Carbide slag 1-4%; White clay 1-5%; Ignition dope 1-4%; The agent 0.5-1% that eliminates the unusual smell of 20-25% concentration.

Wherein the proportioning components of ignition dope is: (weight ratio) SODIUMNITRATE 30%; Potassium permanganate 3-10%; Sodium-chlor 1-4%; Surplus is a water.

The proportioning components of agent of wherein eliminating the unusual smell is: (weight ratio) xitix 1%; Ferrous sulfate 25%; Water 74%.

Production technique of the present invention is: (1), get biochemical sludge and carbide slag, and after the weathering dehydration, making its water ratio is 15%; (2), in proportion with in proportion raw coal, coal slime, white clay mix, and add mixer, mix, and form the original seed coal; (3), the ignition dope for preparing is added suitable quantity of water, be added in proportion in the original seed coal again, stir; (4), the agent that eliminates the unusual smell that will prepare adds suitable quantity of water, makes its concentration reach 20-25%, is added in proportion in the original seed coal again, stir; (5), with mixture extrusion molding in mould, form moulded coal.

The present invention compares with existing moulded coal, has the following advantages:

1, be main raw material with raw coal, coal slime, be used biochemical sludge, the biochemical sludge treatment capacity is big, and burning-point is low, and is on fire fast, the calorific value height, and non-secondary pollution is saved raw coal.

2, utilize waste carbide slag and white clay to be binding agent and sulphur-fixing agent, the carbide slag burning-point is low, and is on fire fast, the calorific value height, and non-secondary pollution, sulfur-fixing rate reaches about 50%.

3, production method of the present invention is simple, cost is low, 10-25% economizes on coal, reduce sulphur dioxide emission 60-75%, reduce flue dust and nitrous oxides concentration greatly, improve 100-150 ℃ of fire box temperature, non-secondary pollution, help the processing and the utilization of biochemical sludge, carbide slag and white clay waste, help energy-conservation and environmental protection.

Specify embodiments of the invention below.

Embodiment 1: proportioning components of the present invention is: (weight ratio) biochemical sludge 25%; Raw coal 45%; Coal slime 20%; Carbide slag 3.5%; White clay 4.5%; Ignition dope 1.5%; The agent 0.5% that eliminates the unusual smell of 20-25% concentration.

Produce 1000 kilograms of moulded coals: (1), get biochemical sludge and carbide slag, after the weathering dehydration, making its water ratio is 15%, making biochemical sludge is that 250 kilograms and carbide slag are 35 kilograms; (2), with the biochemical sludge and the carbide slag of above-mentioned weight, mix for 45 kilograms with 450 kilograms in raw coal, 200 kilograms of coal slimes, white clay, add mixer, mix, form the original seed coal; (3), the ignition dope for preparing all is dissolved in an amount of water for 15 kilograms, be added to again in the original seed coal, stir; (4), again add 5 kilograms of the agent that eliminate the unusual smell of the 20-25% concentration for preparing, stir; (5), with mixture extrusion molding in mould, promptly form 1000 kilograms of moulded coals.

Claims

1, a kind of moulded coal and production technique are made up of biochemical sludge, raw coal, coal slime, carbide slag, white clay, ignition dope, the agent that eliminates the unusual smell, and it is characterized in that: its proportioning components is: (weight ratio) biochemical sludge 20-30%; Raw coal 40-50%; Coal slime 15-20%; Carbide slag 1-4%; White clay 1-5%; Ignition dope 1-4%; The agent 0.5-1% that eliminates the unusual smell of 20-25% concentration.

2, a kind of moulded coal and production technique is characterized in that: its production technique is: (1), get biochemical sludge and carbide slag, and after the weathering dehydration, making its water ratio is 15%; (2), mix with pro rata raw coal, coal slime, white clay in proportion, add mixer, mix, form the original seed coal; (3), the ignition dope for preparing is added suitable quantity of water, be added in proportion in the original seed coal again, stir; (4), the agent that eliminates the unusual smell that will prepare adds suitable quantity of water, makes its concentration reach 20-25%, is added in proportion in the original seed coal again, stir; (5), with mixture extrusion molding in mould, form moulded coal.

3, a kind of moulded coal according to claim 1 and production technique, it is characterized in that: the proportioning components of ignition dope is: (weight ratio) SODIUMNITRATE 30%; Potassium permanganate 3-10%; Sodium-chlor 1-4%; Surplus is a water.

4, a kind of moulded coal according to claim 1 and production technique, it is characterized in that: the proportioning components of the agent that eliminates the unusual smell is: (weight ratio) xitix 1%; Ferrous sulfate 25%: water 74%.