CN103467068A - Production method of gangue shale sintered brick - Google Patents

Production method of gangue shale sintered brick Download PDF

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Publication number
CN103467068A
CN103467068A CN2013103830461A CN201310383046A CN103467068A CN 103467068 A CN103467068 A CN 103467068A CN 2013103830461 A CN2013103830461 A CN 2013103830461A CN 201310383046 A CN201310383046 A CN 201310383046A CN 103467068 A CN103467068 A CN 103467068A
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China
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brick
ageing
raw
gangue
adobe
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CN2013103830461A
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Chinese (zh)
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陈自卫
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郑州鹏泰高新建材制品有限公司
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Priority to CN2013103830461A priority Critical patent/CN103467068A/en
Publication of CN103467068A publication Critical patent/CN103467068A/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/60Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

Abstract

The invention relates to a brick making technology, in particular to a production method of a gangue shale sintered brick. The production method comprises the following steps: A, a mixed raw material comprising 20-60wt% of gangue and 40-80wt% of shale is crushed and screened to form a qualified raw material, wherein coarse particles greater than 2mm account for below 5%, medium particles with particle sizes of 0.9-2mm account for below 17%, and the balance is fine particles with particle sizes less than 0.9mm; B, homogenizing and ageing are performed: an appropriate amount of water is added to the screened qualified raw material, wherein a weight ratio of the added water to the qualified raw material is (12-13.5%):1; the screened qualified raw material and the water are stirred and then loaded into an ageing bin by a belt conveyor and a reversible bin belt conveyor; after each bin is subjected to circulation and ageing for over 72h, the material is taken from the side surface by a multi-bucket excavator, and then loaded into a brick making system; C, brick making and blank stacking are performed; D, a brick blank is dried; and E, the brick blank is sintered. The production method is energy-saving, land-saving, and significant in emission reduction effect; waste is fully used; environmental pollution is reduced; and the thermal insulation property of a novel building wall material is improved.

Description

The gangue shale clinker bricks production method
Technical field
The present invention relates to a kind of brickmaking technology, particularly relate to a kind of gangue shale clinker bricks production method.
Background technology
Since nineteen ninety-two, China strengthens the materials for wall innovation and promotes energy saving building, and materials for wall innovation work has obtained impressive progress, and novel wall material constantly rises at the proportion of whole wallings, and range of application constantly enlarges, and state of the art significantly improves.According to incompletely statistics, the ratio that whole nation new wall material output accounts for the materials for wall total amount by 1992 5% brought up to current 35%, 2.3 hundred million square metres of the built energy-saving residences in the whole nation, 7,200 ten thousand tons of mark coals of accumulative total save energy, save 1,100,000 mu, soil, fully utilize 3.6 hundred million tons of various industrial residues.But with regard to the whole nation, materials for wall innovation job development imbalance, novel wall material is compared with building construction materials such as cement, glass, plastic-steel, aluminium alloy extrusions, there is larger gap in the aspects such as scale of the class of its product, technology content, performance and enterprise, it shows as: 1, unreasonable products structure, and traditional product main body general layout does not obtain radical change yet; 2, the novel wall material product is single, and the supporting degree is not high; 3, scope of the enterprise is little, and production technology falls behind, and intensive degree is not high.
Coal gangue is the waste residue produced in the coal production process, is one of industrial solid castoff of current China quantity discharged maximum.Since the 1950's, due to the development of Mechanion and running down of seam mining condition, the spoil that discharge in colliery rolls up.Be equivalent to 10% measuring and calculating of coal production then by the every annual emissions of coal gangue, totally store up at present more than 40 hundred million tons, take up an area approximately 1.2 ten thousand hectares.The accumulation of coal gangue not only takies a large amount of soils, and in coal gangue, contained sulfide is understood atmosphere pollution and water source after distributing, and causes serious consequence.Contained pyrite (FeS in coal gangue 2) oxidation by air, liberated heat can impel contained coal weathering in coal gangue so that spontaneous combustion.The coal gangue burning time gives off an unpleasant smell and harmful smog, and near making, resident's chronic tracheitis and asthma patient increase, tree deciduous leaf on every side, the crops underproduction.Coal gangue hill is subject to rain drop erosion, near the riverbed sludge in river often making, and river is polluted.
Summary of the invention
The technical problem to be solved in the present invention overcomes above-mentioned the deficiencies in the prior art exactly, and a kind of energy-conservation, saving soil is provided, emission reduction effect is remarkable, and refuse is taken full advantage of, environmental pollution reduces, and improves the production technique of the gangue shale clinker bricks of building heat insulation performance simultaneously.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of gangue shale clinker bricks production method comprises the following steps:
A, fragmentation and screening:
By coal gangue 20%-60%(weight percent) and shale 40%-80%(weight percent) mixing raw material that forms enters jaw crusher and carry out fragmentation, through Belt Conveying, serve apron feeder, enter hammer mill through rotary conveyor again and carry out secondary breaking, after secondary breaking, raw material transport is passed to the high-frequency vibration mesh screen, its mesh size is 2mm * 2mm, selected materials, defective material returns to feed bin through belt, again pulverize and sieve, finally obtain acceptable material, the coarse particles that in acceptable material, particle diameter is greater than 2mm accounts for below 5%, the middle particle of particle diameter 0.9mm-2mm accounts for below 17%, all the other are less than the fine particle of 0.9mm for particle diameter,
B, homogenizing and ageing:
After screening, acceptable material adds the suitable quantity of water stirring to send into the ageing warehouse by rotary conveyor and reversible Distribution Warehouse conveyor, and each feed bin with after the cocycle ageing, by multibucket excavator side feeding, was sent into brick making system through 72 hours; The weight proportion that wherein adds the water yield and acceptable material is water: acceptable material=12%-13.5%:1;
C, brickmaking and code base:
The ageing material that excavator is sent is sent into box-type feeder through rotary conveyor, send into Double Shaft Mixing Extruder through rotary conveyor again, the one-level extruding raw material be stirred is sent into two-stage vacuum extruder for blocks through rotary conveyor, become the mud bar through secondary extrusion, slitting shear machine is cut rear mud bar and is cut into adobe through blank cutter, and setting machine Automatic Code base is loaded onto kiln car; Wherein the water ratio of moulding adobe is 18%-21%, and brick machine vacuum tightness-0.06MPa is to-0.092MPa, extrusion pressure 1.2 MPa-2.2MPa;
D, brick bat drying:
After making entrucking by the kiln car movement system, adobe enters tunnel chamber for drying, by automatic temp, humidity, wind speed control system, completes the brick bat drying operation; Wherein advance 120 ℃-150 ℃ of the temperature of kiln drying medium, 35 ℃-45 ℃ of combustion gas temperature, the relative humidity 90%-95% of combustion gas, the flow velocity 1.5m/s-4.5m/s of kiln inner drying medium, be 24-32h drying cycle, and the water ratio of dry rear adobe is less than or equal to 14%.
E, adobe sintering:
The winch that kiln car by running is, trailer, ferry bus are transported in tunnel kiln, and kiln car pusher heads into tunnel furnace by kiln car, at tunnel furnace, by humidity discharging, preheating, sintering, cooling four-stage, finally make the coal gangue baked brick finished product; Wherein sintering range is 1000-1100 ℃, firing cycle 20-24h.
In described steps A, mixing raw material is by coal gangue 20%-50%(weight percent) and shale 50%-80%(weight percent) form.
In described step B, the ageing homogenizing storehouse is taked the mode of the enterprising between-line spacing in ground in workshop, three is partition wall, recording quantity, the size of each compartment generally designs by the raw material consumption of one day or half a day, the quantity case raw material of compartment needs the time of ageing to determine, its cloth is conical windrow, adopt the rubber conveyer scraper or adopt a reversible adhesive conveyor fixed-point unloading, stockpile point is on the stockpile longitudinal cenlerline, at first the windrow of fixing a point becomes a conical stockpile, then scraper equipment reach or the reversible adhesive conveyor segment distance that moves forward, the heap second layer stops, the shape of the second layered material is a curved surface that is covered in circular cone one side, move forward again afterwards, stop, windrow, until windrow completes.
In described step B, digestion time is 4 days.
In described step C, brick machine vacuum tightness is-0.092MPa, and extrusion pressure is 2.2 MPa.
After dry in described step D, the water ratio of adobe is 3%-6%.
In described step e at pre-heating temperature elevation, sintering and cooling stages, slow ascending, descending temperature between 573 ℃ ± 50 ℃, Slow cooling between 230 ℃ ± 50 ℃, the intensification when hot stage is more than 900 ℃ and 1050 ℃ of rear coolings of maintenance will slowly be carried out.
The beneficial effect of technical solution of the present invention is:
1, gangue shale clinker bricks mainly utilizes shale and coal gangue to carry out high-temperature firing for raw material, have that intensity is high, insulation, the characteristics such as heat insulation, the best substitute products of conventional clay solid brick, the relevant policies that meet China's building energy conservation and materials for wall reform, except energy-conservation, save soil, emission reduction effect is also very remarkable.Make industrial solid castoff take full advantage of, environmental pollution reduces, and has also improved the heat preservation and insulation of buildings simultaneously.At heating districts, the gangue shale clinker bricks building can save energy more than 30% in the winter time, because it possesses good heat preservation and insulation, makes thickness of wall body reduce, and can increase buildings usable floor area 1.13%.
2, because gangue shale clinker bricks is that to take shale and coal gangue be raw material, the many indexs such as its frost resistance, erosion resistance, ultimate compression strength can be better than the artificial stone material of solid clay brick, its specification also can be consistent with common solid clay brick, thereby directly replace solid clay brick.Simultaneously, gangue shale clinker bricks and the common brick need of production water yield relatively, can be economized on water and reach more than 20%.
3, coal gangue is discarded, accumulation is very large to environmental hazard, and occupies a large amount of soils, has a strong impact on ecology, and welding, pollute low water source and rivers, harms the crops and culture fishery; In coal gangue, there are iron sulphide and carbonaceous material to exist, also can produce spontaneous combustion, discharge volume of smoke, contaminate environment; Indivedual coal gangue hills are blasted and the hidden danger of avalanche accident in addition, and mining area safety is caused to serious threat.In addition, coal gangue is again a kind of useful Nonrenewable resources.The present invention is conceived to science, the long-range and principle of saving, and has improved resource utilization, has saved Coal Gangue Resource, meets the growth requirement of country to energy-conserving and environment-protective.
4, the novel wall material that the gangue shale clinker bricks of manufacture of the present invention is promoted as country, the superior performances such as it is heat insulation, insulation, sound insulation, thermal and insulating performance is good, can reduce the Energy in use of buildings, body of wall is energy-conservation to be reached more than 65%, need not compound other any lagging material, just can meet the energy-conservation requirement of national body of wall two steps, therefore, use architectural and there is unique superiority.In addition, with common brick, compare, have a monolithic volume large, conveniently build by laying bricks or stones, save mortar, itself and common brick are 0.7:1.7 with the volume weight ratio, have reduced workman's labour intensity, have shortened construction period, have improved construction speed; Product unit weight is little simultaneously, from heavy and light, thereby has reduced basic supporting capacity, reduces foundation works cost and structural cost, reduces traffic capacity, for multilayer structure provides good material of construction.
5, to sum up, coal gangue is the industrial residue that contains heat, by the present invention, can take full advantage of, when being sparing in the use of coal, having saved to stack and taken up an area, when to enterprise, bringing economic benefit, bring huge environmental benefit and social benefit, therefore, extremely contributed to promotion and implementation.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, wherein:
The schema that Fig. 1 is gangue shale clinker bricks production method of the present invention;
embodiment
Referring to Fig. 1, gangue shale clinker bricks production method of the present invention comprises the following steps:
A, fragmentation and screening:
By coal gangue 20%-60%(weight percent) and shale 40%-80%(weight percent) mixing raw material that forms enters jaw crusher and carry out fragmentation, through Belt Conveying, serve apron feeder, enter hammer mill through rotary conveyor again and carry out secondary breaking, after secondary breaking, raw material transport is passed to the high-frequency vibration mesh screen, its mesh size is 2mm * 2mm, selected materials, defective material returns to feed bin through belt, again pulverize and sieve, finally obtain acceptable material, the coarse particles that in acceptable material, particle diameter is greater than 2mm accounts for below 5%, the middle particle of particle diameter 0.9mm-2mm accounts for below 17%, all the other are less than the fine particle of 0.9mm for particle diameter, mix guaranteeing, the moulding index of material, favourable turn vacuum tightness, extrusion pressure are all under prerequisite up to standard, and the limit mixed ratio example of coal gangue is the 60%(weight percent),
B, homogenizing and ageing:
After screening, acceptable material adds suitable quantity of water to stir and send into the ageing warehouse by rotary conveyor and reversible Distribution Warehouse conveyor through machine,massing, and each feed bin is through 72 hours with after the cocycle ageing, and the plasticity index of compound reaches more than 9; By multibucket excavator side feeding, send into brick making system; The weight proportion that wherein adds the water yield and acceptable material is water: acceptable material=12%-13.5%:1.The levigate raw material that adds amount of water is placed in the aging bunker of sealing, make feed particles moistening, discongest, increase its stability, and improve processability, drying property and the roasting performance of raw material, reach the purpose of improving the quality of products;
C, brickmaking and code base:
The ageing material that excavator is sent is sent into box-type feeder through rotary conveyor, send into Double Shaft Mixing Extruder through rotary conveyor again, the one-level extruding raw material be stirred is sent into two-stage vacuum extruder for blocks through rotary conveyor, become the mud bar through secondary extrusion, slitting shear machine is cut rear mud bar and is cut into adobe through blank cutter, and setting machine Automatic Code base is loaded onto kiln car; Wherein the water ratio of moulding adobe is 18%-21%, and brick machine vacuum tightness-0.06MPa is to-0.092MPa, extrusion pressure 1.2 MPa-2.2MPa.The plasticity of raw material is poorer, and extrusion pressure and the vacuum tightness of requirement are higher; The plasticity of raw material is higher, and the extrusion pressure of requirement and vacuum tightness can be hanged down a little.So, the water ratio of reduction shaping raw material, the extrusion pressure of raising forcing machine, adjust carse, medium and small particle proportion in raw material, makes it reach suitable grating relation, increases the vacuum tightness of forcing machine, and extrusion is completed under higher vacuum tightness;
D, brick bat drying:
After making entrucking by the kiln car movement system, adobe enters tunnel chamber for drying, by automatic temp, humidity, wind speed control system, completes the brick bat drying operation; Wherein advance 120 ℃-150 ℃ of the temperature of kiln drying medium, 35 ℃-45 ℃ of combustion gas temperature, the relative humidity 90%-95% of combustion gas, the flow velocity 1.5m/s-4.5m/s of kiln inner drying medium, be 24-32h drying cycle, after dry, the water ratio of adobe is less than or equal to 14%, mainly for preventing kiln collapse, shortening firing period; By selecting rational drying medium temperature, humidity and flow velocity, the drying sensitivity coefficient of adobe is controlled in the 0.9-1.1 scope, make the dry qualification rate of adobe reach 95%-98%;
E, adobe sintering:
The winch that kiln car by running is, trailer, ferry bus are transported in tunnel kiln, and kiln car pusher heads into tunnel furnace by kiln car, at tunnel furnace, by humidity discharging, preheating, sintering, cooling four-stage, finally make the coal gangue baked brick finished product; Wherein sintering range is 1000-1100 ℃, firing cycle 20-24h.Select the large section energy-saving type tunnel kiln sintering of section 6.9m, long 143m, adopt internal combustion mode sintering, main thermal source is from the internal combustion of adobe, and foundation " roasting fast " system, adopt " superthermal roasting " technology, realize that the goods firing cycle is by within 36-46 hour, being reduced to 20-24 hour.Due to Al in compound 2o 3increase and improve with coal gangue content, answer the proper extension roasting to bring to 15-20m; Internal combustion can add to 80%-100%; Insulation belt is also answered proper extension, makes the ultimate compression strength of product and freezing and thawing performance meet the GB requirement;
In described steps A, mixing raw material is by coal gangue 20%-50%(weight percent) and shale 50%-80%(weight percent).Blindly pursue high volume, increase investment, increase installed capacity, increase production cost, more uncertain also bring to production process.The incorporation of coal gangue is advisable with 20%-50%, and product orientation, at perforated brick or solid brick, has so consumed coal gangue, has reduced again production difficulty.
In described step B, the ageing homogenizing storehouse is taked the mode of the enterprising between-line spacing in ground in workshop, three is partition wall, recording quantity, the size of each compartment generally designs by the raw material consumption of one day or half a day, the quantity case raw material of compartment needs the time of ageing to determine, its cloth is conical windrow, adopt the rubber conveyer scraper or adopt a reversible adhesive conveyor fixed-point unloading, stockpile point is on the stockpile longitudinal cenlerline, at first the windrow of fixing a point becomes a conical stockpile, then scraper equipment reach or the reversible adhesive conveyor segment distance that moves forward, the heap second layer stops, the shape of the second layered material is a curved surface that is covered in circular cone one side, move forward again afterwards, stop, windrow, until windrow completes.
In described step B, digestion time is 4 days.Proof, use the ageing raw material brickmaking of 4 days after tested, and the dry scrap rate of product can reduce 12%, and the roasting scrap rate can reduce 6%, and the plasticity index of raw material can improve 1.2 times.
In described step C, brick machine vacuum tightness is-0.092MPa, and extrusion pressure is 2.2 MPa.
After dry in described step D, the water ratio of adobe is 3%-6%.
In described step e at pre-heating temperature elevation, sintering and cooling stages, slow ascending, descending temperature between 573 ℃ ± 50 ℃, Slow cooling between 230 ℃ ± 50 ℃, the main mutual conversion of considering alpha-quartz and β-quartz, produce volumetric shrinkage, expansion, and goods are cracked, affect yield rate.Intensification when hot stage is more than 900 ℃ and 1050 ℃ of rear coolings of maintenance will slowly be carried out, and avoid brick to cut laminate plastic deformation and clinkering off.
Embodiment mono-:
A kind of gangue shale clinker bricks production method comprises the following steps:
A, fragmentation and screening:
By coal gangue 20%(weight percent) and shale 80%(weight percent) mixing raw material that forms enters jaw crusher and carry out fragmentation, through Belt Conveying, serve apron feeder, enter hammer mill through rotary conveyor again and carry out secondary breaking, after secondary breaking, raw material transport is passed to the high-frequency vibration mesh screen, its mesh size is 2mm * 2mm, selected materials, defective material returns to feed bin through belt, again pulverize and sieve, finally obtain acceptable material, in acceptable material, the coarse particles of particle diameter 3mm accounts for 5%, the middle particle of particle diameter 2mm accounts for 17%, all the other fine particles that are 0.8mm,
B, homogenizing and ageing:
After screening, acceptable material adds the suitable quantity of water stirring to send into the ageing warehouse by rotary conveyor and reversible Distribution Warehouse conveyor, and each feed bin, after circulation ageing in 72 hours, by multibucket excavator side feeding, is sent into brick making system; The weight proportion that wherein adds the water yield and acceptable material is water: acceptable material=12%:1;
C, brickmaking and code base:
The ageing material that excavator is sent is sent into box-type feeder through rotary conveyor, send into Double Shaft Mixing Extruder through rotary conveyor again, the one-level extruding raw material be stirred is sent into two-stage vacuum extruder for blocks through rotary conveyor, become the mud bar through secondary extrusion, slitting shear machine is cut rear mud bar and is cut into adobe through blank cutter, and setting machine Automatic Code base is loaded onto kiln car; Wherein the water ratio of moulding adobe is 18%, and brick machine vacuum tightness is-0.092MPa that extrusion pressure is 2.0 MPa;
D, brick bat drying:
After making entrucking by the kiln car movement system, adobe enters tunnel chamber for drying, by automatic temp, humidity, wind speed control system, completes the brick bat drying operation; Wherein advance 120 ℃ of the temperature of kiln drying medium, 35 ℃ of combustion gas temperature, the relative humidity 90% of combustion gas, the flow velocity 1.5m/s of kiln inner drying medium, be 24h drying cycle, dry after the water ratio 14% of adobe;
E, adobe sintering:
The winch that kiln car by running is, trailer, ferry bus are transported in tunnel kiln, and kiln car pusher heads into tunnel furnace by kiln car, at tunnel furnace, by humidity discharging, preheating, sintering, cooling four-stage, finally make the coal gangue baked brick finished product; Wherein sintering range is 1000 ℃, firing cycle 20h.
In described step B, the ageing homogenizing storehouse is taked the mode of the enterprising between-line spacing in ground in workshop, three is partition wall, recording quantity, the size of each compartment generally designs by the raw material consumption of one day or half a day, the quantity case raw material of compartment needs the time of ageing to determine, its cloth is conical windrow, adopt the rubber conveyer scraper or adopt a reversible adhesive conveyor fixed-point unloading, stockpile point is on the stockpile longitudinal cenlerline, at first the windrow of fixing a point becomes a conical stockpile, then scraper equipment reach or the reversible adhesive conveyor segment distance that moves forward, the heap second layer stops, the shape of the second layered material is a curved surface that is covered in circular cone one side, move forward again afterwards, stop, windrow, until windrow completes.
In described step e at pre-heating temperature elevation, sintering and cooling stages, slow ascending, descending temperature between 573 ℃ ± 50 ℃, Slow cooling between 230 ℃ ± 50 ℃, the intensification when hot stage is more than 900 ℃ and 1050 ℃ of rear coolings of maintenance will slowly be carried out.
Embodiment bis-:
A kind of gangue shale clinker bricks production method comprises the following steps:
A, fragmentation and screening:
By coal gangue 60%(weight percent) and shale 40%(weight percent) mixing raw material that forms enters jaw crusher and carry out fragmentation, through Belt Conveying, serve apron feeder, enter hammer mill through rotary conveyor again and carry out secondary breaking, after secondary breaking, raw material transport is passed to the high-frequency vibration mesh screen, its mesh size is 2mm * 2mm, selected materials, defective material returns to feed bin through belt, again pulverize and sieve, finally obtain acceptable material, in acceptable material, the coarse particles of particle diameter 4mm accounts for 5%, the middle particle of particle diameter 0.9mm accounts for 17%, all the other fine particles that are 0.5mm,
B, homogenizing and ageing:
After screening, acceptable material adds the suitable quantity of water stirring to send into the ageing warehouse by rotary conveyor and reversible Distribution Warehouse conveyor, and each feed bin, after circulation ageing in 4 days, by multibucket excavator side feeding, is sent into brick making system; The weight proportion that wherein adds the water yield and acceptable material is water: acceptable material=13.5%:1;
C, brickmaking and code base:
The ageing material that excavator is sent is sent into box-type feeder through rotary conveyor, send into Double Shaft Mixing Extruder through rotary conveyor again, the one-level extruding raw material be stirred is sent into two-stage vacuum extruder for blocks through rotary conveyor, become the mud bar through secondary extrusion, slitting shear machine is cut rear mud bar and is cut into adobe through blank cutter, and setting machine Automatic Code base is loaded onto kiln car; Wherein the water ratio of moulding adobe is 21%, reach-0.06MPa of brick machine vacuum tightness, extrusion pressure 1.2 MPa;
D, brick bat drying:
After making entrucking by the kiln car movement system, adobe enters tunnel chamber for drying, by automatic temp, humidity, wind speed control system, completes the brick bat drying operation; Wherein advance 150 ℃ of the temperature of kiln drying medium, the combustion gas temperature 45 C, the relative humidity 95% of combustion gas, the flow velocity 4.5m/s of kiln inner drying medium, be 32h drying cycle, dry after the water ratio 6% of adobe.
E, adobe sintering:
The winch that kiln car by running is, trailer, ferry bus are transported in tunnel kiln, and kiln car pusher heads into tunnel furnace by kiln car, at tunnel furnace, by humidity discharging, preheating, sintering, cooling four-stage, finally make the coal gangue baked brick finished product; Wherein sintering range is 1100 ℃, firing cycle 24h.
In described step B, the ageing homogenizing storehouse is taked the mode of the enterprising between-line spacing in ground in workshop, three is partition wall, recording quantity, the size of each compartment generally designs by the raw material consumption of one day or half a day, the quantity case raw material of compartment needs the time of ageing to determine, its cloth is conical windrow, adopt the rubber conveyer scraper or adopt a reversible adhesive conveyor fixed-point unloading, stockpile point is on the stockpile longitudinal cenlerline, at first the windrow of fixing a point becomes a conical stockpile, then scraper equipment reach or the reversible adhesive conveyor segment distance that moves forward, the heap second layer stops, the shape of the second layered material is a curved surface that is covered in circular cone one side, move forward again afterwards, stop, windrow, until windrow completes.The composition fluctuation that this distributing mode is suitable for material is not too large, and homogenizing is required to not too high situation.
In described step e at pre-heating temperature elevation, sintering and cooling stages, slow ascending, descending temperature between 573 ℃ ± 50 ℃, Slow cooling between 230 ℃ ± 50 ℃, the intensification when hot stage is more than 900 ℃ and 1050 ℃ of rear coolings of maintenance will slowly be carried out.
Embodiment tri-:
A kind of gangue shale clinker bricks production method comprises the following steps:
A, fragmentation and screening:
By coal gangue 50%(weight percent) and shale 50%(weight percent) mixing raw material that forms enters jaw crusher and carry out fragmentation, through Belt Conveying, serve apron feeder, enter hammer mill through rotary conveyor again and carry out secondary breaking, after secondary breaking, raw material transport is passed to the high-frequency vibration mesh screen, its mesh size is 2mm * 2mm, selected materials, defective material returns to feed bin through belt, again pulverize and sieve, finally obtain acceptable material, in acceptable material, the coarse particles of particle diameter 3mm accounts for 3%, the middle particle of particle diameter 1mm accounts for 10%, all the other fine particles that are 0.8mm,
B, homogenizing and ageing:
After screening, acceptable material adds the suitable quantity of water stirring to send into the ageing warehouse by rotary conveyor and reversible Distribution Warehouse conveyor, and each feed bin, after circulation ageing in 4 days, by multibucket excavator side feeding, is sent into brick making system; The weight proportion that wherein adds the water yield and acceptable material is water: acceptable material=13%:1;
C, brickmaking and code base:
The ageing material that excavator is sent is sent into box-type feeder through rotary conveyor, send into Double Shaft Mixing Extruder through rotary conveyor again, the one-level extruding raw material be stirred is sent into two-stage vacuum extruder for blocks through rotary conveyor, become the mud bar through secondary extrusion, slitting shear machine is cut rear mud bar and is cut into adobe through blank cutter, and setting machine Automatic Code base is loaded onto kiln car; Wherein the water ratio of moulding adobe is 20%, reach-0.08MPa of brick machine vacuum tightness, extrusion pressure 2.0 MPa;
D, brick bat drying:
After making entrucking by the kiln car movement system, adobe enters tunnel chamber for drying, by automatic temp, humidity, wind speed control system, completes the brick bat drying operation; Wherein advance 130 ℃ of the temperature of kiln drying medium, 40 ℃ of combustion gas temperature, the relative humidity 92% of combustion gas, the flow velocity 3m/s of kiln inner drying medium, be 30h drying cycle, dry after the water ratio 3% of adobe.
E, adobe sintering:
The winch that kiln car by running is, trailer, ferry bus are transported in tunnel kiln, and kiln car pusher heads into tunnel furnace by kiln car, at tunnel furnace, by humidity discharging, preheating, sintering, cooling four-stage, finally make the coal gangue baked brick finished product; Wherein sintering range is 1050 ℃, firing cycle 22h.
In described step B, the ageing homogenizing storehouse is taked the mode of the enterprising between-line spacing in ground in workshop, three is partition wall, recording quantity, the size of each compartment generally designs by the raw material consumption of one day or half a day, the quantity case raw material of compartment needs the time of ageing to determine, its cloth is conical windrow, adopt the rubber conveyer scraper or adopt a reversible adhesive conveyor fixed-point unloading, stockpile point is on the stockpile longitudinal cenlerline, at first the windrow of fixing a point becomes a conical stockpile, then scraper equipment reach or the reversible adhesive conveyor segment distance that moves forward, the heap second layer stops, the shape of the second layered material is a curved surface that is covered in circular cone one side, move forward again afterwards, stop, windrow, until windrow completes.
In described step e at pre-heating temperature elevation, sintering and cooling stages, slow ascending, descending temperature between 573 ℃ ± 50 ℃, Slow cooling between 230 ℃ ± 50 ℃, the intensification when hot stage is more than 900 ℃ and 1050 ℃ of rear coolings of maintenance will slowly be carried out.
Embodiment tetra-:
A kind of gangue shale clinker bricks production method comprises the following steps:
A, fragmentation and screening:
By coal gangue 40%(weight percent) and shale 60%(weight percent) mixing raw material that forms enters jaw crusher and carry out fragmentation, through Belt Conveying, serve apron feeder, enter hammer mill through rotary conveyor again and carry out secondary breaking, after secondary breaking, raw material transport is passed to the high-frequency vibration mesh screen, its mesh size is 2mm * 2mm, selected materials, defective material returns to feed bin through belt, again pulverize and sieve, finally obtain acceptable material, the coarse particles that in acceptable material, particle diameter is greater than 4mm accounts for 3%, the middle particle of particle diameter 1mm accounts for 10%, all the other fine particles that are 0.5mm,
B, homogenizing and ageing:
After screening, acceptable material adds the suitable quantity of water stirring to send into the ageing warehouse by rotary conveyor and reversible Distribution Warehouse conveyor, and each feed bin, after circulation ageing in 4 days, by multibucket excavator side feeding, is sent into brick making system; The weight proportion that wherein adds the water yield and acceptable material is water: acceptable material=12.5%:1;
C, brickmaking and code base:
The ageing material that excavator is sent is sent into box-type feeder through rotary conveyor, send into Double Shaft Mixing Extruder through rotary conveyor again, the one-level extruding raw material be stirred is sent into two-stage vacuum extruder for blocks through rotary conveyor, become the mud bar through secondary extrusion, slitting shear machine is cut rear mud bar and is cut into adobe through blank cutter, and setting machine Automatic Code base is loaded onto kiln car; Wherein the water ratio of moulding adobe is 20%, reach-0.092MPa of brick machine vacuum tightness, extrusion pressure 2.0MPa;
D, brick bat drying:
After making entrucking by the kiln car movement system, adobe enters tunnel chamber for drying, by automatic temp, humidity, wind speed control system, completes the brick bat drying operation; Wherein advance 130 ℃ of the temperature of kiln drying medium, 40 ℃ of combustion gas temperature, the relative humidity 92% of combustion gas, the flow velocity 3m/s of kiln inner drying medium, be 30h drying cycle, dry after the water ratio 3% of adobe.
E, adobe sintering:
The winch that kiln car by running is, trailer, ferry bus are transported in tunnel kiln, and kiln car pusher heads into tunnel furnace by kiln car, at tunnel furnace, by humidity discharging, preheating, sintering, cooling four-stage, finally make the coal gangue baked brick finished product; Wherein sintering range is 1050 ℃, firing cycle 22h.
In described step B, the ageing homogenizing storehouse is taked the mode of the enterprising between-line spacing in ground in workshop, three is partition wall, recording quantity, the size of each compartment generally designs by the raw material consumption of one day or half a day, the quantity case raw material of compartment needs the time of ageing to determine, its cloth is conical windrow, adopt the rubber conveyer scraper or adopt a reversible adhesive conveyor fixed-point unloading, stockpile point is on the stockpile longitudinal cenlerline, at first the windrow of fixing a point becomes a conical stockpile, then scraper equipment reach or the reversible adhesive conveyor segment distance that moves forward, the heap second layer stops, the shape of the second layered material is a curved surface that is covered in circular cone one side, move forward again afterwards, stop, windrow, until windrow completes.
In described step e at pre-heating temperature elevation, sintering and cooling stages, slow ascending, descending temperature between 573 ℃ ± 50 ℃, Slow cooling between 230 ℃ ± 50 ℃, the intensification when hot stage is more than 900 ℃ and 1050 ℃ of rear coolings of maintenance will slowly be carried out.
The present invention takes full advantage of coal gangue and shale sintered brick, turns waste into wealth, and has realized the recycling of coal gangue and shale, has reduced environmental pollution, has saved to stack to take up an area, and has saved water resources, meets the demand for development of country to energy-conserving and environment-protective.And technique of the present invention is reasonable, economically feasible, the superior performances such as the product of producing is heat insulation, insulation, sound insulation, the monolithic volume is large, conveniently build by laying bricks or stones, save mortar, unit weight is light, reduce the foundation works cost, reduce traffic capacity, all the be up to state standards specified requirement of GB/T5101-1998 " fired common brick " of the sintered perforated brick of simultaneously producing and the intensity of solid brick, can substitute solid clay brick fully, but also there is the high-performance that solid clay brick does not have, and there is significant economic benefit and social benefit, extremely be conducive to promotion and implementation.

Claims (7)

1. a gangue shale clinker bricks production method comprises the following steps:
A, fragmentation and screening:
Will be by coal gangue 20%-60%(weight percent) and shale 40%-80%(weight percent) mixing raw material that forms enters jaw crusher and carry out fragmentation, through Belt Conveying, serve apron feeder, enter hammer mill through rotary conveyor again and carry out secondary breaking, after secondary breaking, raw material transport is passed to the high-frequency vibration mesh screen, its mesh size is 2mm * 2mm, selected materials, defective material returns to feed bin through belt, again pulverize and sieve, finally obtain acceptable material, the coarse particles that in acceptable material, particle diameter is greater than 2mm accounts for below 5%, the middle particle of particle diameter 0.9mm-2mm accounts for below 17%, all the other are less than the fine particle of 0.9mm for particle diameter,
B, homogenizing and ageing:
After screening, acceptable material adds the suitable quantity of water stirring to send into the ageing warehouse by rotary conveyor and reversible Distribution Warehouse conveyor, and each feed bin with after the cocycle ageing, by multibucket excavator side feeding, was sent into brick making system through 72 hours; The weight proportion that wherein adds the water yield and acceptable material is water: acceptable material=12%-13.5%:1;
C, brickmaking and code base:
The ageing material that excavator is sent is sent into box-type feeder through rotary conveyor, send into Double Shaft Mixing Extruder through rotary conveyor again, the one-level extruding raw material be stirred is sent into two-stage vacuum extruder for blocks through rotary conveyor, become the mud bar through secondary extrusion, slitting shear machine is cut rear mud bar and is cut into adobe through blank cutter, and setting machine Automatic Code base is loaded onto kiln car; Wherein the water ratio of moulding adobe is 18%-21%, and brick machine vacuum tightness-0.06MPa is to-0.092MPa, extrusion pressure 1.2 MPa-2.2MPa;
D, brick bat drying:
After making entrucking by the kiln car movement system, adobe enters tunnel chamber for drying, by automatic temp, humidity, wind speed control system, completes the brick bat drying operation; Wherein advance 120 ℃-150 ℃ of the temperature of kiln drying medium, the flow velocity 1.5m/s-4.5m/s of kiln inner drying medium, be 24-32h drying cycle, dry after the water ratio of adobe be less than or equal to 14%;
E, adobe sintering:
The winch that kiln car by running is, trailer, ferry bus are transported in tunnel kiln, and kiln car pusher heads into tunnel furnace by kiln car, at tunnel furnace, by humidity discharging, preheating, sintering, cooling four-stage, finally make the coal gangue baked brick finished product; Wherein sintering range is 1000 ℃-1100 ℃, firing cycle 20-24h.
2. gangue shale clinker bricks production method according to claim 1, it is characterized in that: in described steps A, mixing raw material is by coal gangue 20%-50%(weight percent) and shale 50%-80%(weight percent) form.
3. gangue shale clinker bricks production method according to claim 1, it is characterized in that: in described step B, the ageing homogenizing storehouse is taked the mode of the enterprising between-line spacing in ground in workshop, three is partition wall, recording quantity, the size of each compartment generally designs by the raw material consumption of one day or half a day, the quantity case raw material of compartment needs the time of ageing to determine, its cloth is conical windrow, adopt the rubber conveyer scraper or adopt a reversible adhesive conveyor fixed-point unloading, stockpile point is on the stockpile longitudinal cenlerline, at first the windrow of fixing a point becomes a conical stockpile, then scraper equipment reach or the reversible adhesive conveyor segment distance that moves forward, the heap second layer stops, the shape of the second layered material is a curved surface that is covered in circular cone one side, move forward again afterwards, stop, windrow, until windrow completes.
4. gangue shale clinker bricks production method according to claim 1, it is characterized in that: in described step B, digestion time is 4 days.
5. gangue shale clinker bricks production method according to claim 1 is characterized in that: in described step C, brick machine vacuum tightness is-0.092MPa, and extrusion pressure is 2.2 MPa.
6. gangue shale clinker bricks production method according to claim 1 is characterized in that: after dry in described step D, the water ratio of adobe is 3%-6%.
7. gangue shale clinker bricks production method according to claim 1, it is characterized in that: in described step e at pre-heating temperature elevation, sintering and cooling stages, slow ascending, descending temperature between 573 ℃ ± 50 ℃, Slow cooling between 230 ℃ ± 50 ℃, the intensification when hot stage is more than 900 ℃ and 1050 ℃ of rear coolings of maintenance will slowly be carried out.
CN2013103830461A 2013-08-29 2013-08-29 Production method of gangue shale sintered brick CN103467068A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104387014A (en) * 2014-07-23 2015-03-04 平定县昌达耐火材料有限公司 Shale-material coal-gangue brick and preparation method thereof
CN104387025A (en) * 2014-10-24 2015-03-04 重庆福希建材有限公司 Full-internal combustion one-time palletizing burning production technology for energy-saving type sintered shale hollow blocks
CN104588168A (en) * 2014-11-26 2015-05-06 广德县中远新型建材有限公司 Coal gangue crushing and stirring device
CN104761237A (en) * 2015-03-10 2015-07-08 柳州市郊区古灵第三砖厂 A shale light solid brick
CN105036705A (en) * 2015-06-29 2015-11-11 新乡新亚纸业集团股份有限公司 Sintered brick prepared by utilizing paper mill sludge and preparation method thereof
CN105384458A (en) * 2015-11-11 2016-03-09 阎五一 Fired perforated brick
CN105645988A (en) * 2016-03-02 2016-06-08 泸州鑫垒建材有限公司 Production method of lightweight insulating brick
CN105712696A (en) * 2015-09-18 2016-06-29 安庆惠嘉新型建材有限公司 High-hardness wall tile production process
CN106082971A (en) * 2016-07-29 2016-11-09 四川乔丰新材料科技有限公司 Gangue shale clinker bricks production system
CN106111661A (en) * 2016-06-24 2016-11-16 福鼎市利民城市建筑垃圾处理有限公司 A kind of refuse classification processing method
CN108275954A (en) * 2018-01-26 2018-07-13 山东农业大学 A kind of removal moisture drying method of poplar and maize straw brick
CN109053144A (en) * 2018-10-12 2018-12-21 江苏华能墙材有限公司 A kind of sintering brick process process
CN109333792A (en) * 2018-09-21 2019-02-15 江苏腾业新型材料有限公司 A kind of sintering process for producing bricks and dedicated ageing library

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CN101747077A (en) * 2009-12-30 2010-06-23 南京鑫翔新型建筑材料有限责任公司 Sintered product of rejects and shale modular cellular bricks and preparing method thereof

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CN1291600A (en) * 2000-11-28 2001-04-18 王祥 Process and dedicated apparatus for calcining bricks
CN101747077A (en) * 2009-12-30 2010-06-23 南京鑫翔新型建筑材料有限责任公司 Sintered product of rejects and shale modular cellular bricks and preparing method thereof

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104387014A (en) * 2014-07-23 2015-03-04 平定县昌达耐火材料有限公司 Shale-material coal-gangue brick and preparation method thereof
CN104387025B (en) * 2014-10-24 2016-03-02 重庆福希建材有限公司 Energy-saving sintering shale holllow building block full internal combustion semi-stiff extrusion process production technique
CN104387025A (en) * 2014-10-24 2015-03-04 重庆福希建材有限公司 Full-internal combustion one-time palletizing burning production technology for energy-saving type sintered shale hollow blocks
CN104588168A (en) * 2014-11-26 2015-05-06 广德县中远新型建材有限公司 Coal gangue crushing and stirring device
CN104761237A (en) * 2015-03-10 2015-07-08 柳州市郊区古灵第三砖厂 A shale light solid brick
CN105036705A (en) * 2015-06-29 2015-11-11 新乡新亚纸业集团股份有限公司 Sintered brick prepared by utilizing paper mill sludge and preparation method thereof
CN105712696A (en) * 2015-09-18 2016-06-29 安庆惠嘉新型建材有限公司 High-hardness wall tile production process
CN105384458A (en) * 2015-11-11 2016-03-09 阎五一 Fired perforated brick
CN105645988A (en) * 2016-03-02 2016-06-08 泸州鑫垒建材有限公司 Production method of lightweight insulating brick
CN106111661A (en) * 2016-06-24 2016-11-16 福鼎市利民城市建筑垃圾处理有限公司 A kind of refuse classification processing method
CN106082971A (en) * 2016-07-29 2016-11-09 四川乔丰新材料科技有限公司 Gangue shale clinker bricks production system
CN108275954A (en) * 2018-01-26 2018-07-13 山东农业大学 A kind of removal moisture drying method of poplar and maize straw brick
CN109333792A (en) * 2018-09-21 2019-02-15 江苏腾业新型材料有限公司 A kind of sintering process for producing bricks and dedicated ageing library
CN109053144A (en) * 2018-10-12 2018-12-21 江苏华能墙材有限公司 A kind of sintering brick process process

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Application publication date: 20131225