32results about How to "Reduce the cost of brick making" patented technology

The invention belongs to the technical field of environmental engineering, and particularly relates to a process for preparing a sludge autoclaved aerated concrete building block. The process mainly comprises the following steps of: (1) quickly stirring and mixing spare dried sludge, water and lime, coal ash, cement, gypsum and aluminum powder with physical and chemical properties meeting the brick making requirements in a certain ratio and in turn; (2) feeding the mixture obtained in the step (1) into a die, and putting the die into a thermostatic curing box of 40 DEG C or 60 DEG C to perform foaming and curing for 4 hours; (3) putting the blank foamed and cured in the step (2) into an autoclave, and curing the blank for over 8 hours by adopting a stepwise buck-boost curing mode; and (4) piling the product discharged from the autoclave outdoors for over 2 days. The process can reach hazard-free and recycling treatment of urban sludge, save clay resources and save the brick making cost, and has remarkable economic, social and environmental benefits.

The invention belongs to the field of refractory matters for ferrous metallurgy and in particular relates to an Al2O3-SiC-C refractory brick for a torpedo ladle produced by utilizing a waste Al2O3-C material and a preparation method of the Al2O3-SiC-C refractory brick. The Al2O3-SiC-C refractory brick comprises the following raw materials in percentage by weight: 10-40% of special grade bauxite clinker particles with the particle size of 3-5mm, 10-30% of special grade bauxite clinker particles with the particle size of 1-3mm, 5-20% of alundum particles with the particle size of 0.088-1mm, 5-20% of corundum fine powder with the particle size of less than 0.088mm, 2-8% of silicon carbon particulates with the particle size of 0.088-1mm, 2-8% of silicon carbon fine powder with the particle size of less than 0.088mm, 10-25% of waste Al2O3-C material fine powder with the particle size of less than 0.088mm, 5-15% of alumina micro powder with the particle size of less than 0.088mm, 3-10% of binding clay fine powder with the particle size of less than 0.088mm, 1-10% of crystalline flake graphite powder with the particle size of less than 0.088mm, 0.5-5% of asphalt powder with the particle size of less than 0.088mm, and 4-8% of additional phenolic resin.

The invention relates to a recycling method for zinc-containing waste residue and urban domestic sludge. The recycling method comprises the following steps of: a, crushing and sieving the indigenous zinc-smelting waste residues; b, uniformly mixing 40%-80% (in percentage by weight) of the indigenous zinc-smelting waste residues with 20%-60% of urban domestic sludges, and ageing the mixture under the normal temperature; c, pressing and forming the aged mixture, an drying the pressed and formed mixture to obtain a dry body; d, reducing and volatilizing the dry body in a high-temperature sealed furnace, and collecting the volatile component to obtain the zinc-enriched smoke dust, wherein the reducing temperature is 1000 DEG C to 1200 DEG C and the reducing time is 6 hours to 10 hours; and f, ventilating air to the high-temperature sealed furnace for oxidizing and roasting, wherein the oxidizing and roasting temperature is 900 DEG C to 1100 DEG C and the oxidizing time is 2 hours to 8 hour, and cooling with the furnace to obtaine a sintered brick.

The invention provides a biogas slurry sintered brick and a preparation method thereof. The biogas slurry sintered brick is prepared from the following components in percentage by weight: 75-85% of clay, 14-24% of coal gangue and 0.5-2% of biogas slurry. The preparation method of the biogas slurry sintered brick comprises the following steps: carrying out three-stage crushing on clay and coal gangue by adopting a jaw type crusher, a hammer crusher and a fine crushing double roll crushing machine, then adding biogas slurry, stirring by adopting a double-shaft mixer, then aging uniformly mixed materials in an ageing warehouse so that raw materials are fully homogenized, then conveying the homogenized raw material to a forming shop, carrying out extrusion molding by virtue of an extruder to obtain a green body, and finally drying the green body in a tunnel drying room, thus obtaining the biogas slurry sintered brick finished product. The preparation method of the biogas slurry sintered brick has the advantages that the biogas slurry obtained by carrying out anaerobic fermentation on organic ingredients in household garbage in a garbage treatment process and carrying out solid-liquid separation on residual waste is taken as a raw material of the sintered brick, recycling of urban and rural waste is realized, harmless, reduction and recycling treatment of garbage is guaranteed, and brick making cost is greatly reduced, and strength of the sintered brick is improved.

The invention discloses a residue soil baking-free brick and a preparation method thereof, and relates to the technical field of baking-free bricks. The baking-free brick is formed by pressing 40-60%of muck, 10-20% of fly ash, 10-20% of cement, 10-20% of brick-concrete construction waste and 0.5-2% of lime as raw materials, a soil curing agent does not need to be doped any more, the specific gravity of solid waste in the raw material components reaches 78% or above, particularly, the 7-day strength of the baking-free brick is larger than 15 MPa, and the softening coefficient is larger than 0.8. The problems of high production cost, poor water stability and small specific gravity of solid wastes of the muck baking-free brick in the prior art are solved, the doping amount of the solid wastes such as muck, fly ash and construction wastes is increased on the premise of ensuring the compressive strength of the baking-free brick, the production cost is reduced, and the method is more economical and environment-friendly.

The invention provides a steel wire automatically replacing device for a raw brick cutting machine. The steel wire automatically replacing device comprises a rack, one side of the rack is provided with a raw brick cutting table, a first steel wire rope winding shaft is arranged over the raw brick cutting table and a second steel wire rope winding shaft is arranged under the raw brick cutting table, and the upper and lower sides of the raw brick cutting table are provided with a first steel wire rope holding device and a second steel wire rope holding device respectively; a steel wire rope is wound on the second steel wire rope winding shaft from the first steel wire rope winding shaft through first steel wire rope holding device, the second steel wire rope holding device in sequence, the raw brick cutting table and the second steel wire rope holding device. During working, the first steel wire rope holding device and the second steel wire rope holding device each tightens the steel wire rope; when the steel wire rope is replaced, the first steel wire rope holding device and the second steel wire rope holding device are made to release the steel wire rope, the second steel wire rope winding shaft rotates by a certain angle to let the steel wire wind, a steel wire rope which reaches fatigue strength leaves away from the raw brick cutting location, and a new steel wire rope arrives at the raw brick cutting location, and tensile failure of the steel wire rope caused by fatigue can be avoided. By means of the steel wire automatically replacing device, the raw brick cutting machine can work without stop around the clock, the efficiency of making bricks is greatly improved, and the cost of making the bricks is saved.

The invention relates to the technical field of comprehensive using of mine tailings, in particular to a method for comprehensively treating the mine tailings. The invention solves the problems of high cost, unstable quality and having potential safety hazard in the process of preparing bricks by the mine tailings and nonideal comprehensive treatment effect existing in the prior art; the technical scheme provided by the invention is a comprehensive treat method for the mine tailings, comprising the following steps sequentially: 1. pulp processing; 2. slag pretreatment; 3. steaming nourishing and making bricks. Compared with the prior art, the method for comprehensively treating the mine tailings has the following advantages: 1. solving a plurality of problems existing in the mine tailings radically; 2. saving large funds; 3. saving vast resources; 4. simple technological method; 5. safe, reliable and environmental protection products; 6. low cost; 7. good comprehensive treatment effect, which has significant practical meaning.

The invention relates to a hydraulic brick making machine and a brick making method. An upper fixing beam of the brick making machine is fixedly installed on a guide upright post, a connecting deviceis positioned between the upper fixing beam and a base, a distributing mechanism is installed on the connecting device, and a mould frame fixing piece for fixing a mould frame is detachably arranged on the connecting device; an upper die assembly is mounted on the upper fixing beam; a lower die assembly is mounted on the base; and a die frame assembly is detachably mounted on the lower die assembly. During use, a lower die and a die frame synchronously move upwards to a first position, and the die frame is continuously moved upwards to form a first filling cavity; and primary material distribution is performed, the lower die moves downwards, and secondary material distribution is performed. According to the hydraulic brick making machine and the brick making method, secondary distributioncan be realized, and the manufacture of brick bodies with different structures can be met; adjustment is carried out according to different types of brick making requirements, different configurationscan be selected according to required functions, different brick type requirements are met, the brick making cost is reduced, and the service life of the brick making machine is effectively prolonged.

The invention discloses an aerated concrete block and a preparation method thereof. The aerated concrete block is prepared from raw materials in parts by mass as follows: 20-30 parts of slag, 30-35 parts of tailings, 20-30 parts of phosphogypsum, 10-20 parts of fly ash, 1-2 parts of graphite, 1-3 parts of concentrated high foamer, 0.5-1 part of vermiculite and 7-10 parts of sodium silicate. The aerated concrete block can be produced in a factory in a large batch manner with the traditional aerated concrete block production process, the strength of the aerated concrete block also meets certainstandard, by means of industrial waste residues discharged by a chemical enterprise, industrial refuse produced by the chemical enterprise is used to the greatest extent, use rate of lime and cement is reduced, brick manufacture cost is reduced greatly, and foaming capacity can be controlled effectively by changing various parameters of the production process.

The invention relates to a preparation method of a novel self-insulation perforated brick. The method comprises the steps of evenly mixing illite shale, coal gangue, glass beads and additives according to the mass ratio of (3-4) to (1-2) to (0.1-0.3) to (0.01-0.1), aging the materials for 3-7 days after water is added to the materials according to technological requirements, extruding the materials to form an air brick by a two-stage vacuum extruder, drying the air brick for 3-5 days at 40+/-5 DEG C, slowly heating a dried air brick in an annular kiln to 1000+/-10 DEG C, and sintering the dried air brick for 5 hours at over 900 DEG C, thus obtaining the novel self-insulation perforated brick, wherein the sintering period is 50 hours.

The invention relates to the technical field of brick and tile production devices. The invention discloses a smart device for steel wire exchanging and cutting. The device comprises a vertical fixed frame, a cutting rack, a pre-stored track, a plurality sets of upper wire wheels, a limit mechanism, a wire, a sensing device, a clamping mechanism and a lower wire wheel. The pre-stored track is fixedly connected with the upper of the cutting rack. The upper wire wheels are arranged on the pre-stored track. The limit mechanism is arranged at the leftmost of the pre-stored track, and limits a leftmost upper wire wheel. The lower wire wheel is clamped at the front end of the clamping mechanism. The sensing device is fixed to the vertical fixed frame and arranged at the upper end of the clampingmechanism. The sensing device is used to detect whether the wire between the upper wire wheels and the lower wire wheel is broken. The smart device for steel wire exchanging and cutting without manualoperation can realize the intelligent exchanging of steel wires, and can realize the 24-hour uninterrupted work of the cutting device. Therefore, the brick production efficiency is greatly improved and the brick production cost is saved.