CN1060647A - Application of city life garbage is baked bricks, brickmaking technology - Google Patents

Abstract

A kind of application of city life garbage be used to make, the technology of chainotte brick, mainly be with rubbish through slaking, drying, sort, sieve after base and sintering.Combustiblematerials of sorting out and the coarse fodder that sifts out are mixed for agglomerating fuel after drying.The lime-ash that category of glass of sorting out and sintering generate is mixed in the base mud with the fines of above-mentioned sieve after crushed, and the incorporation of every brick can reach 150 labels or 200 labels less than 300 grams.There is not residue after the refuse treatment.Dust concentration, dark brown grade compliance with environmental protection requirements in the processing.

Description

Application of city life garbage is baked bricks, brickmaking technology

The present invention relates to the treatment process of domestic refuse, relate to burning, the system technology of clay brick simultaneously.

Through the manual information retrieval of domestic patent gazette, retrieving immediate patented technology has two.The first " making the method for granular building material with rubbish " (application number 88101398.6, publication number CN1035813A).After this method was mixed with rubbish, calcium oxide, lime carbonate, high pressure formed cylindrical particle, removes stone, lime carbonate and water in vain with cement, powdery again, the high pressure granulation.It two is " closed container with handle the domestic refuse technology " (application number 90103442.8, publication number CN1047844A).This method has disclosed the domestic refuse after the letter sorting, by in vexed jar fully anaerobically fermenting handle, and make the technological process of organic fertilizer, biogas.These two kinds of technology are compared with the present invention, and purpose has similarity, but solution difference is very big.

Task of the present invention is to provide a kind of new way for the processing of domestic refuse.Promptly domestic refuse is divided into two classes substantially, wherein a class is as the raw material of making clay brick, another kind of fuel as sintered clay brick.

Task is achieved in that domestic refuse that collection is obtained stacks slaking, then through super-dry, sort, sieve, base, sintering and finished bricks.Following division:

The stacking slaking is a common link in the life refuse processing method.The present invention only tests a little to the time of piling height, heap.

Rubbish after the slaking, water content is higher, for ease of next procedure, therefore must make it water ratio between 11-15% through super-dry.

Letter sorting is refuse classification.Be divided into pick-out thing and choose thing.Be divided into flammable class (footwear, cloth, plastics etc.) in the pick-out thing again, category of glass, metal species and building fragment.Choose to such an extent that thing is a large amount of, enter the operation of sieving.And above-mentioned combustiblematerials after drying, is mixed for the fuel of baking bricks.After pulverizing, category of glass is mixed for the raw material of base.Metal species reclaims.The building fragment is as filling out the road.

Produce outsifting in the operation of sieving and sieve thing.Outsifting is a coarse fodder, after super-dry, is mixed for the fuel of baking bricks.Sieve to such an extent that thing is a fines, mix in the base raw material.

The clay brick base is based on clay, mix in the base mud and sieve to such an extent that thing and category of glass are pulverized material, and the lime-ash behind the sintering pulverizes three's total amount of material, and every being good below 300 grams.

Sintering technology and prior art are basic identical.The combustiblematerials that the letter sorting operation is sorted out dries the positive negative pressure intersection in the combustion zone of brickkiln afterwards, drops into burning, additional heat from the pinkeye hole; Outsifting in the operation of sieving dries the back and drops into burning from the pinkeye hole of the good kiln of firm sign indicating number.

Brick finished product warehouse-in behind the sintering; Lime-ash mixes base mud through pulverizing.

Such scheme provides a new way for the processing of application of city life garbage, and after handling like this, the residual content of rubbish is near zero.Simultaneously, prepared clay brick, the label grade is more than No. 150 or No. 200, and frost resistance is all qualified, and lime blowing and water-intake rate reach the imperial index, and have saved clay and fuel.Dust concentration in the production process, dark brown grade compliance with environmental protection requirements.

Accompanying drawing is a technological process block-diagram of the present invention.

Below in conjunction with accompanying drawing, set forth most preferred embodiment:

Select spacious place, fresh domestic refuse concentrated the stacking slaking, pile usually high 3 to 4 meters, curing time, about 30-50 days summer and autumn, the about 50-70 of winter-spring season days.Rubbish also can pass through the aerobic fermentation tank slaking.

Rubbish after the slaking enters drying process, and the dry cost that shines with sunlight is minimum, also more convenient.The threshing ground is cement preferably, establishes ditch around it, is convenient to rainwater and discharges.The threshing ground is gradient slightly, and lowest part is established filtering basin, the mark lattice.The area of filtering basin accounts for the 1-2% on threshing ground.Described drying is that rubbish is spread out, and thickness is advisable with 2-3 centimetre, per hour turns over secondary.When water ratio during at 11-15% (fine more than 20 ℃, about 2-3 hour), sort.

Produce pick-out thing in the letter sorting and choose thing.Divide combustiblematerials (for example footwear, cloth, plastics) in the pick-out thing again, category of glass, metal species, building fragment.Combustiblematerials will be mixed for the fuel of baking bricks.After pulverizing, category of glass mixes the base mud of brickmaking.Metal species is sold recycle bin.The building fragment is used to fill out the road.Choose to such an extent that thing is a large amount of broken rubbish mud, then send into the operation of sieving.

Sieving requires to sieve to such an extent that thing is a powder, requires particle diameter not above 3 millimeters at least.Can divide two roads, i.e. scalping, dusting cover.The screen frame of scalping is made with 4 * 4 centimetres of angle bar, and is long 1.5 meters, wide 0.8 meter.Middle with 10 millimeters round steel of φ, 3 centimetres at interval, two ends are welded in respectively in the last bottom of sieve.Sieve is supportted into about 60 ° of inclination angles.Operator choose to such an extent that material shovels to the highest point of sieve with above-mentioned, give free rein to and drop down sieve.Outsifting is mixed for the fuel of baking bricks after drying.Sieve to such an extent that thing enters dusting cover.Require particle diameter to be not more than 3 millimeters behind the dusting cover.Can adopt electronic trommel screen.The compass screen surface of trommel screen diamond-shaped meshes steel thin plate is rolled into round shape, and the diagonal lines of mesh is respectively 25 millimeters, 13 millimeters.Trommel screen is by motor drives, and rotating speed is advisable with 25-28 rev/min.Be mixed for the fuel of baking bricks after the outsifting drying; Sieve to such an extent that thing mixes in the base mud.

Blank-making technology and prior art are basic identical, just will sieve to such an extent that thing, category of glass are pulverized material, and the back is pulverized the material three with the lime-ash of mentioning and mixed together in the base mud.With 240 * 115 * 53mm ³Fragment of brick is an example, and every is mixed 100 grams, 150 grams, 200 grams, 250 grams, 300 grams respectively.Finished bricks after testing, the label grade removes that to mix 300 gram persons be 150 ^#Outward, all the other are 200 ^#; Frost resistance is all qualified; Two evaluation of indexes of lime blowing and water-intake rate are imperial.From outside watch, mix 300 the gram, 250 the gram the brick faces slightly coarse.

The technology of baking bricks and prior art are basic identical, and the flammable class pick-out thing during just garbage sorting hangs on the kiln face after drying, and the positive negative pressure intersection in the combustion zone drops into from the pinkeye hole and to burn, and the quality of item at kiln top is had positive effect; The scalping of the operation of sieving hangs on the kiln face after drying, in the pinkeye hole input burning of the good kiln of sign indicating number just, and evidence, be advisable with the input amount of 5-10KG in each pinkeye hole.Lime-ash behind the sintering mixes in the above-mentioned base mud after crushed.The finished bricks warehouse-in.

Test obtains mixing 45.29 tons of the raw materials of base mud with 124.5 tons of garbage curings (being converted into 249 tons of new refuses), has saved brickmaking with mud and dumping land used, saves the fuel of baking bricks simultaneously, amounts to and marks 5.63 tons in coal.By 35 tons of calculating of 50,000 population samll cities and towns daily output rubbish, 288.8 tons in mark coal is saved in annual 7.16 mu in the soil of saving.

Such scheme, the attention in portion, the province Room.

Claims (7)

1, a kind of the technology of application of city life garbage in order to system, chainotte brick, main flow process be said rubbish at least through overcuring, it is characterized in that again the rubbish drying after the slaking, sort, sieve, base, sintering and finished bricks; Burnt thing that sorts out and the outsifting that sieves are mixed for agglomerating fuel after drying; The lime-ash that category of glass that sorts out and sintering generate mixes among the base mud after crushed.

2, as the said technology of claim 1, it is characterized in that slaking, high 3-4 rice is piled in slaking, and the curing time is 30-50 days in summer and autumn, is 50-70 days in winter-spring season.

3, as the said technology of claim 1, it is characterized in that drying, dried msw water content is 11-15%.

4, as the said technology of claim 1, it is characterized in that letter sorting, pick-out thing is flammable class, category of glass, metal species, building fragment; Choose to such an extent that thing enters the Xia Dao operation of sieving.

5, as the said technology of claim 1, it is characterized in that sieving, sieve the particle diameter of thing less than 3 millimeters; Outsifting is placed separately.

6, as claim 1,4,5 said technologies, it is characterized in that base, sieve to such an extent that thing, category of glass are pulverized the cindery pulverizing material of material and sintering generation that three's sum is mixed among the base mud, every brick of incorporation mostly is 300 grams most.

7, as claim 1,4,5 said technologies, it is characterized in that sintering, the combustiblematerials that sorts out hangs on the kiln face after drying, and burning is dropped in the pinkeye hole of positive negative pressure intersection from the combustion zone; Outsifting is then thrown from the pinkeye hole of the good kiln of firm sign indicating number after drying and is burnt, and the throwing burning amount in each pinkeye hole is 5-10kg.

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