CN1238374A - Synthetic briquette and its production technology - Google Patents

Abstract

A synthetic granular briquette is made up of industrial waste dregs (xylose dregs, saw dust, or stalk) as main raw material, addition of fly ash, cinder, coal gangue, coal-saving additive, coal and peat. Its advantages are high generated heat, low igniting temp. and low cost.

Description

Synthetic briquette and production technique

The present invention relates to a kind of prescription and technology of synthetic particle series moulded coal, particularly industrial shaping coal.

Coal is a kind of important Mineral resources, along with industrial development, the trend that reduces has year by year appearred in the increase of export volume, coal Mineral resources, in order to alleviate this contradiction, country advocates development compact curing type fuel energetically, to conversion in 2010, substitute utilization and require to reach 1,700 ten thousand tons of standard coals, this also is the progressively development compact curing shaped fuel that China promises to undertake in world's environmental protection conference, save energy is eliminated the air-polluting purpose.Present also tested recipe and technology without comparison of China's synthetic briquette, addressing this problem becomes the direction that people make great efforts.

Task of the present invention is: overcome the deficiencies in the prior art, propose a kind of industrial residue that utilizes and be main raw material, make synthetic briquette and production technique.

Task of the present invention realizes as follows: the proportioning of each batching of synthesis type particle series moulded coal is by weight: grey slag charge (wood sugar bits, wood chip or straw) 23-38 part, flyash, slag or coal gangue 5-20 part, coal slime 28-35 part, HS-JM3 type coal-saving additive 0.25-0.3 part, coal 23-33 part, water.

Its production technique is:

A, waste residue material (wood sugar bits, wood chip or straw) is crushed to about 10 orders, flyash, slag or colliery powder are broken to more than 20 orders;

B, coal slime, wood sugar bits slag is dry under 200-500 ℃ of temperature makes it moisture content and reaches below 10%;

C, batching;

D, stirring;

E, stone roller mix;

F, moulding;

G, oven dry;

H, check warehouse-in.

The synthetic briquette profile that adopts technology of the present invention and prescription to suppress is a garden post strip, length 15-50mm, diameter 10-16mm.

The present invention is owing to be main raw material with the industrial residue, not only eliminated environmental pollution, eliminated public hazards, also realized turning waste into wealth, the fuel new variety have also been increased simultaneously, solved the fuel source problem of shortage, simultaneously, the present invention is owing to be to be main raw material with industrial residue (wood sugar bits, wood chip or straw), produce Xylitol etc. in the corn producing region and will produce a large amount of waste residues, therefore, raw material sources can guarantee that cost is extremely low.

Fig. 1 is a process flow sheet of the present invention.

A most preferred embodiment of the present invention, synthetic particle series moulded coal, its main several production formulas are as follows:

One, civilian No. 1, each batching is by weight:

Wood sugar bits slag: 38 parts, 5 parts of coal gangues, 32 parts of coal slimes, 23 parts in raw coal, 0.25 part of compound, 1.75 parts in water;

Two, civilian No. 2, each batching is by weight:

32 parts of slags of wood sugar bits, 7 parts of coal gangues, 30 parts of coal slimes, 28 parts in raw coal, 0.25 part of compound, 2.75 parts in water;

Three, No. 1, industry, and each batching is by weight:

23 parts of slags of wood sugar bits, 22 parts of coal gangues, 28 parts of coal slimes, 25 parts in raw coal, 0.3 part of compound, 1.7 parts in water.

Four, No. 2, industry, and each batching is by weight:

25 parts of slags of wood sugar bits, 5 parts of coal gangues, 35 parts of coal slimes, 33 parts in raw coal, 0.3 part of compound, 1.7 parts in water.

As scheming: waste residue material (wood sugar bits, wood chip or straw) is crushed to about 10 orders, advance chapelet through hand-stuff and material is mentioned whizzer through chapelet, carry out drying through 200-500 ℃, moisture content reaches below 10%, reentering lift mentions on the feed bin, send into each feed bin by rotary conveyor, flyash, slag, colliery powder are broken to more than 20 orders, deliver to chapelet by rotary conveyor, mention on the feed bin through chapelet again, send each feed bin inlet respectively to by rotary conveyor.The various materials that feed bin gets off are prepared burden through disc feeder, add additive, water-resisting agent, finished product simultaneously and be garden strip (long 15-50mm, diameter 10-16mm), by vibratory screening apparatus broken end is sifted out, send the feed bin shaping finished product back to through rotary conveyor, chapelet, normal temperature is preserved down in rotary conveyor is delivered to stockyard.

Claims (3)

1, a kind of synthetic particle series moulded coal, it is characterized in that: the weight proportion of each batching is: grey slag charge (wood sugar bits, wood chip or straw) 23-38 part, flyash, slag or coal gangue 5-20 part, coal slime 28-35 part, HS-JM3 type coal-saving additive 0.25-0.3 part, coal 23-33 part, water 1.75-2.75 part.

2, a kind of production technique of synthetic particle series moulded coal is characterized in that:

A, waste residue material (wood sugar bits, wood chip or straw) is crushed to about 10 orders, flyash, slag or colliery powder are broken to more than 20 orders;

B, coal slime, wood sugar bits slag is dry under 200-500 ℃ of temperature makes it moisture content and reaches below 10%;

C, batching;

D, stirring;

E, stone roller mix;

F, moulding;

G, oven dry;

H, check warehouse-in.

3, a kind of formed product of synthetic particle series moulded coal is characterized in that: garden post strip, long 15-50mm, diameter 10-16mm.

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