CN1078223A

CN1078223A - Utilize making brick with daily garbage

Info

Publication number: CN1078223A
Application number: CN 92103331
Authority: CN
Inventors: 刘承志
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-04-29
Filing date: 1992-04-29
Publication date: 1993-11-10

Abstract

The present invention utilizes domestic refuse to make a large amount of bricks that use of construction industry, its production method is that the material that is difficult to pulverize is removed in the rubbish screening, be crushed to 7～10 orders then, be that 4: 1～1: 1 ratio is prepared burden and added water and stirs in the volume ratio of rubbish and clay again, go out finished bricks through base, drying and baked for producing again.Use producing bricks from refuse, can handle domestic refuse in a large number, alleviate the pollution of rubbish atmosphere, water body and soil, reduce heap garbage and press useless field soil, reduce raw clay consumption, the combustiblesubstance during roasting in the rubbish greatly reduces energy consumption, and every brick production cost was less than 5 fens.

Description

Utilize making brick with daily garbage

The present invention relates to the processing of solid waste disposal technical field, particularly application of city life garbage.

Environment protection is a fundamental state policy of China, and control environmental pollution and ecological damage are the basic tasks of environment protection, and its final purpose is that the protection people ' s health is promoted economic development for the people cause cleaning suitable life and work situation.But, along with expanding economy, the quantum of output of application of city life garbage day by day increases, according to pertinent data, the city resident discharges life rubbish rubbish more than 2 kilograms for each person every day, a hundreds of thousands of people's small and medium-sized cities, every day, the domestic refuse of discharging just reached tens tons, and the quantity discharged of this class solid waste is quite surprising.At present, for the treatment process of application of city life garbage, generally be by the sanitation worker with refuse sweeping in trash chute, move rubbish to refuse tip with cleaning cart then and stack.China's municipal wastes quantity discharged reached more than 600 ten thousand tons in 1989, took up an area of hundreds of mu, and annual with 10% speed increment, and refuse treatment quantity not sufficient total amount 10%, at many peri-urbans, piled with many garbage mountains, severe contamination The Surroundings in Cities.The weak point of existing life refuse processing method is, (1) severe contamination atmosphere, and particulate in the refuse and harmful poisonous gas are blown up, and cause atmospheric pollution; (2) polluted-water increases water body souring, alkalescence, suspended substance; (3) contaminated soil destroys the life condition of microorganism in the soil, influences growth and development of plants and animals; (4) assemble and propagate a large amount of pathogeny bodies, wide-scale distribution disease.In addition; according to " Chinese environmental newspaper " on April 2nd, 1992; in order to reduce garbage discharge amount; alleviate pollution to environment; environmental protection of Germany association prepares traditional refuse collection method is made major reform, measures the number that each household family pours out rubbish with the metering trash chute of adorning electronic scales in a kind of and collects the charges respectively.Reduce the quantity discharged of rubbish with this equipment, be difficult to carry out in China, and and the above-mentioned pollution problem that domestic refuse produced of unresolved stacking.This shows,, all fail to search out method preferably both at home and abroad the processing of domestic refuse.

The purpose of this invention is to provide the treatment process of utilizing making brick with daily garbage, solve the problem of application of city life garbage difficult treatment, and make this raw material that misplaces the place of solid life refuse, can be as the main raw material of brickmaking and in addition fully development and use, not only can reduce the exploitation of clay resource, but also can reduce the brickmaking energy consumption.

The objective of the invention is to be achieved through the following technical solutions.

The making brick with daily garbage that utilizes of the present invention, its production method is that the material that is difficult to pulverize is removed in the rubbish screening, be crushed to 7～10 orders then, prepare burden with clay (kaolin or shale) and lime again, and add water and stir, after this production process is similar to common brick, promptly passes through the finished product of base, drying and baked for producing brick output.

The making brick with daily garbage that utilizes of the present invention, better technical scheme is, rubbish after the screening is stacked fermentation earlier, be crushed to 7～8 orders again, rubbish after fermentation more helps pulverizing, and the volume ratio of rubbish after the pulverizing and clay (kaolin or shale) is 4: 1～1: 1, and then adds lime according to the ratio that adds 0.03～0.05kg lime in every common brick, and add an amount of water and stir, obtain finished bricks through base, drying and roasting again.

The making brick with daily garbage that utilizes of the present invention, best techniques scheme are that the volume ratio of rubbish after the pulverizing and clay (kaolin or shale) is that 11: 9～1: 1, the addition of lime was every brick of 0.03～0.04kg/.

Theoretical foundation of the present invention is, is rich in combustiblesubstance in the domestic refuse, can replace the interior fuel of brick, thereby reduces consumption of coal, and materials such as a large amount of dust, silt, cinder are arranged in the domestic refuse, and they contain Al ₂O ₃SiO ₂, consumption that can instead of clay; The major ingredient of clay (kaolin or shale) is Al ₂O ₃SiO ₂2H ₂O, it can improve the plasticity-of base substrate also as plastic material; Lime can be used as flux, reduces the sintering temperature of brick.Simultaneously, lime also with rubbish and clay in multiple material the series of physical chemical transformation takes place in roasting process, for example generate the Calucium Silicate powder xln with silicon dioxde reaction, at high temperature form vitreous state liquid phase thing, to not melt particle bond, and recrystallization forms stable mask pattern, and the silicate material that generates other many complexity, and they can both increase resistance to compression, the folding strength of brick.

Utilize producing bricks from refuse to have great social benefit and economic worth, its advantage is: (1) can handle application of city life garbage in a large number, alleviates the pollution to atmosphere, water body and soil, and the germ in the rubbish is utterly destroyed under hot conditions; (2) the raw clay consumption can reduce more than 30%, adds and reduces the useless field soil of rubbish pressure, has very big realistic meaning to saving the agricultural land; (3) the comparable shale brick of every brick of brickmaking fuel consumption consumes 0.15 kilogram in coal less, and a medium-sized brick field can be economized on coal 2400 tons in 1 year, greatly reduced production cost, and the production cost of every brick was less than 5 fens; (4) brick made of rubbish is through detecting, and its ultimate compression strength has surpassed shale brick, and folding strength surpasses national clay brick highest standard, acid and alkali-resistance, and erosion resistance is strong.

Below in conjunction with embodiment, the present invention is described in further details.

The volume percent of the rubbish of different embodiment and clay (also available kaolin or shale, below all be example with the clay) sees also following table, in addition again according to the ratio interpolation lime that adds 0.03～0.05kg lime in every common brick.

	Example 1	Example 2	Example 3	Example 4	Example 5	Example 6	Example 7	Example 8
									Rubbish	50	53	55	56	58	60	70	80
Clay	50	47	45	44	42	40	30	20

Production method with making brick with daily garbage is, at first the bulk matter that is difficult to pulverize is removed in the rubbish screening in refuse tip, as various metal productss, plastics and rubber item etc., rubbish after the screening is preferably stacked fermentation earlier, rubbish after the fermentation is more convenient for pulverizing, rubbish after will screening with pulverizer then is crushed to 7～10 orders, preferably be controlled at 7～8 orders, and rubbish and clay (also available kaolin or shale) after will pulverizing according to the listed ratio of last table are prepared burden, because the main purpose with producing bricks from refuse is that rubbish is turned waste into wealth, make full use of garbage raw material, therefore the volume ratio maximum of rubbish and clay can reach 4: 1, also can be 1: 1, best ratio of components is 11: 9, the base substrate that helps making like this has plasticity-preferably, the ratio interpolation lime that in the compound of rubbish and clay, adds 0.03～0.05kg lime again according to the volume of every common brick, lime should be crushed to finely powdered, it is even with various raw material stirring to add an amount of water again, after this production process is similar to the production process of common brick, promptly passes through base, dry and baked for producing goes out finished bricks.In high-temperature calcination process, the combustiblesubstance in the rubbish is fully burned, and not only can reduce consumption of coal greatly, and is that the disinfecting of rubbish is handled.After the brick made from waste that embodiment 3 is fired send Anyue County, Sichuan Province material of construction product inspection center to detect, think that with reference to " clay brick intensity index " this brick belongs to the 75# brick, its ultimate compression strength differs from 100# brick on 0.8, folding strength surpasses the standard of 200# brick, this shows that the intensity of the brick made from domestic refuse meets building requirements.

Claims

1, utilizes making brick with daily garbage, its production method is that the material that is difficult to pulverize is removed in the rubbish screening, it is characterized in that the rubbish after the screening is crushed to 7～10 orders, prepare burden with clay (kaolin or shale) and lime again, and add water and stir, pass through the finished product of base, drying and baked for producing brick output then.

2, according to the described making brick with daily garbage that utilizes of claim 1, it is characterized in that the rubbish after the screening is stacked fermentation earlier, and then be crushed to 7～8 orders, the volume ratio of rubbish after the pulverizing and clay (kaolin or shale) is, 4: 1～1: 1, add lime according to the ratio that adds 0.03～0.05kg lime in every common brick again, and add an amount of water and stir, obtain finished bricks through base, drying and roasting again.

3, the making brick with daily garbage that utilizes according to claim 1 and 2, the volume ratio of rubbish after it is characterized in that pulverizing and clay (kaolin or shale) are that 11: 9～1: 1, the addition of lime was every brick of 0.03～0.04kg/.