1263results about "Construction waste recovery" patented technology

The invention described herein generally pertains to utilization of high power density microwave energy to reduce organic compounds to carbon and their constituents, primarily in a gaseous state. The process includes, but is not limited to, scrap tires, plastics, asphalt roofing shingles, computer waste, medical waste, municipal solid waste, construction waste, shale oil, and PCB/PAH/HCB-laden materials. The process includes the steps of feeding organic material into a microwave applicator and exposing the material to microwave energy fed from at least two linear polarized sources in non-parallel alignment to each other, and collecting the material. The at least two sources of microwave energy are from a bifurcated waveguide assembly, whose outputs are perpendicular to each other and fed through waveguide of proper impedance, such that the microwave sources are physically and electrically 90° out of phase to each other. The microwave frequency is between 894 and 1000 MHz, preferably approximately 915 MHz.

The embodiment of the invention discloses a building refuse treatment regeneration system, including a classification stacking, sorting processing system, a classification processing system and a plurality of storage bins, wherein, the classification processing system includes at least two parallel crushing screening process production lines and water circulating systems, each crushing screening process production line includes a feeder, crusher, as well as a screening machine connected in series in sequence, and a plurality of outlets of the screening machine are respectively connected to the plurality of storage bins through conveyor belts. By adoption of the building refuse treatment regeneration system of the embodiment of the invention, bricks, tiles, dust and sand and concrete blocks and the like in the building refuse can be divided into at least two production lines for parallel processing, which greatly enhancing the production efficiency and the purity of recycled aggregates, so that the recycled aggregates can be applied to a variety of uses, reproduced into a variety of high-quality recycled products, reducing the waste of resources and minimizing pollution that will be probably caused to the environment.

The invention discloses a construction waste treatment device, which comprises a crushing chamber, an atomizing nozzle is arranged on the upper side of the crushing chamber, a water suction pipe is arranged on the upper side of the atomizing nozzle, a water storage chamber is arranged inside the upper end of the suction pipe, and a water storage chamber is arranged on the left upper side of the crushing chamber. There is a feeding pipe, the lower end of the right side of the feeding pipe is provided with a drainage plate, the lower side of the drainage plate is provided with a crushing plate, the lower left end of the crushing chamber is provided with a connecting pipe, the right side of the connecting pipe is provided with a rebar storage chamber, and the upper end of the rebar storage chamber is provided with a There is an electromagnet, there is a discharge port on the lower side of the crushing chamber, a crushing chamber is provided on the lower side of the discharge port, a screen is provided at the lower end of the crushing chamber, a discharge pipe is provided in the middle of the lower side of the crushing chamber, and a discharge pipe is provided on the lower side of the discharge pipe. There is a grinding chamber, the four corners of the lower side of the crushing chamber are provided with support columns, the lower side of the grinding chamber is provided with a discharge pipe, the lower side of the support column is provided with a base, the inside of the base is provided with a vibration-damping pad, and the upper middle of the base is provided with a pulley. The construction waste is crushed, separated, crushed, screened, ground and transported, which can effectively protect the environment and save resources.

A method for reclaiming the city life garbage by cement kiln includes such steps as separating the building garbage from city life garbage, dewatering, breaking, regulating lime saturation coefficient, adding modified combustion promoter and adhesive, shaping, and clacining in cement kiln to obtain cement clinker.

The invention relates to the technical field of shield construction muck treatment, in particular to a shield construction muck treatment system and method. The muck generated by shield construction is crushed and stirred by a crushing and stirring device and then enters a primary-stage double-layer vibrating screen, oversize products are discharged out of the system, undersize products enter a sieve cone tank, the sieve cone tank is connected with a swirler through a pump, an intermediate tank is connected to an overflow port of the swirler, a discharge port of the intermediate tank is connected to an overflow tank through a pipeline, the slurry in the overflow tank is pumped to a flocculation tower through a pump, the flocculation tower is connected with an automatic dosing device, a flocculation medicament is pumped into the flocculation tower, the slurry in the flocculation tower is pumped to a filter press through a pump, drying mud cake treatment is carried out through the filterpress, the treated clear water flows into a clear water tank for reutilization, the dried mud cake is discharged out of the system, so that classified solid-liquid separation of different particle size components and water in the shield muck is realized, reutilization of inorganic raw materials and water resources of the shield muck is formed, and huge economic benefits are generated while the social resources are saved.

The invention discloses a high-strength light foam ceramic plate and a manufacturing method thereof, and belongs to the field of building material manufacturing. The ceramic plate comprises the following materials in percentage by weight: 10-30 percent of sludge/bottom mud, 20-30 percent of building waste, 15-25 percent of waste ceramic, 10-25 percent of waste glass, 5-15 percent of bentonite, 5-15 percent of kaolin, 0.5-5 percent of aluminum powder, 5-10 percent of sodium bicarbonate, 0.5-1.5 percent of animal albumen foaming agent and 9-16 percent (percentage of total amount of the solid matters) of water. The manufacturing method comprises the following steps of: mixing and crushing the main raw material; adding the animal albumen foaming agent and water; granulating; filling a granular material into a refractory combined mould; leveling; filling in a kiln; firing; and performing cold processing to produce a ceramic plate finished product. The high-strength light foam ceramic plate has the advantages of high product strength, small volume weight, fire proofing, excellent freeze proofing, long-term water proofing, readily available main raw material which basically comes from environmental solid waste, has a wide source and is low in cost and adoption of the animal albumen foaming agent of small using amount and wide source; the manufacturing process has the advantages of simplicity, high efficiency, energy conservation, environmental friendliness, no secondary pollution; and the high-strength light foam ceramic plate can be used as thermal insulation decorative materials, fire barriers and the like of exterior walls of buildings.

A comprehensive treating method for the building garbage includes such steps as proper breaking, separating metals, bamboo, wood and plastics out, adding the rest into a washing pool with three-class layered sieve, washing with water while stirring to separate silt sludge, sand and stone particles and big blocks from each other, multi-stage mechanical separation of silt sludge to obtain sludge and sand-stone particles, depositing sludge to become water and clay, drying clay, and cyclic use of water.

The invention provides a building garbage treatment system. The building garbage treatment system comprises crushing equipment, sieving equipment and material lifting equipment, wherein the sieving equipment is arranged above the crushing equipment and is provided with a downwardly arranged material slideway; the material lifting equipment is used for lifting the discharged material of the crushing equipment to the sieving equipment. According to the building garbage treatment system provided by the invention, the sieving equipment is arranged above the crushing equipment, so that the occupied area of the whole treatment system is effectively reduced. In addition, height fall exists between the sieving equipment and other equipment, so that the return material of the sieving equipment automatically slides downwards through the material slideway under the action of gravity, conveying equipment is reduced and efficiency is improved.

This invention relates to a progressive method of separating and extracting raw materials from residential roofing products for re-use as ingredients for asphalt and fiberglass related products, including roofing materials. The method includes reduction, separation and then extraction of raw materials. The resulting products are alternative roofing granules, asphalt coated limestone, limestone, recycled asphalt and recycled fiberglass strand powders.

The invention provides a method for recycling waste clay, which comprises the following steps of: removing impurities from construction waste materials through treatment processes such as crushing, impurity removal, iron removal, sieving and the like, and preparing the materials into a recycled aggregate meeting the requirement of grinding equipment on particle size; burning up combustibles in the recycled aggregate through a calcining process to reduce ignition loss and water content; separating a concrete component from a clay brick component in the recycled aggregate; and grinding the clay brick component to obtain regenerated powder. By the method, waste clay brick resources can be fully utilized by a simple process; moreover, the regenerated clay powder obtained in the production has good performance, wide application range and high added value.

The invention discloses a fine treatment process for building solid waste, mainly comprising the following steps: pretreatment in a storage yard of building solid waste, including airing and manual sorting; stripping of mud powder and mud blocks, three-stage crushing, three-stage screening, manual sorting, air separation, magnetic separation, color separation, screening of different-hardness solid waste by different sorting techniques and combined grinding and dry type sand washing techniques, thereby preparing 2 kinds of novel green mineral aggregate, namely common recycled aggregate with particle sizes of 0-5mm, 5-20mm and 20-31.5mm, and high-strength high-quality recycled aggregate with particle sizes of 0-5mm, 5-20mm and 20-31.5mm, 5 types of high-quality, high-added value recycled products such as mortar and concrete curing aggregate, inertia micropowder and other sorted products. The fine treatment process for building solid waste realizes fine, high-added value treatment of building solid waste, achieves 100% resource utilization, and makes a great breakthrough in fine treatment in the resource utilization industry of building solid waste.

The invention discloses a resourceful cyclic utilization technology for household and building rubbish. The technology comprises the steps that firstly, the rubbish is fermented, percolate treatment is conducted, the rubbish is conveyed into a pyrolysis gasifier, and methane is used for supporting combustion; secondly, the rubbish is combusted, and coke residues are stored and left for use; thirdly, high-temperature smoke is subjected to heat absorbing and recycled to be guided into a tunnel kiln for air drying of sintered green bricks; fourthly, the coke residues and fly ash are conveyed to the tunnel kiln for brick sintering; fifthly, recycled water and process cooling water are used for green brick manufacturing and stirring, and high-temperature steam is used for power generation; sixthly, the building rubbish is roughly broken, impurity removing is conducted, secondary fine breaking is conducted, impurity removing is conducted, and recycled aggregate is screened and used; seventhly, the recycled aggregate with the particle size being 3 mm-10 mm is used for manufacturing hollow blocks; and eighthly, recycled fine powder with the particle size being smaller than 3 mm is used for brick sintering. The resourceful cyclic utilization technology has the beneficial effects that the household rubbish, the building rubbish and the brick sintering technology are organically combined, waste water reaching the standard, the coke residues, the fly ash, the high-temperature smoke, steam and generated electricity are utilized in rubbish treatment and brick sintering, the rubbish is thoroughly utilized, secondary pollution is eliminated, the household rubbish and the building rubbish are cyclically utilized, and waste is turned into wealth.

Carbon production by domestic refuse is carried out by: 1.transporting the domestic refuse to pre- treating pool, conveying it by conveyer belt and first sizing, and reutilizing the sized metal materials, glass and building refuse; 2 roughly breaking the sized domestic refuse with 3-5cm grain, magnetic separating and removing fine iron; 3.drying, shining and extruding the magnetic separated refuse to make, the water content <3-20%, and fine breaking with 1-2cm grain; 4. press shaping the fine refuse; 5. transporting the compressed refuse to carbonized apparatus, high-temperature treating at 300-1200deg.C for 0.5-1.5hrs to obtain semi-coke.

The invention discloses a construction waste sorting device, which comprises a sorter body, wherein a lifting device is arranged to the left side of the sorter body; a first sorting chamber is arranged on the upper side in the sorter body; a second sorting chamber having an opening downward is disposed on the lower side; a partitioning plate is fixedly disposed between the first sorting chamber and the second sorting chamber; the right side of the partitioning plate is provided with a drop port running through the upper and lower sides; a first sorting device is disposed in the first sorting chamber; a second sorting device is disposed in the second sorting chamber. The construction waste sorting device can be used for sorting construction wastes quickly and accurately, automatically liftsthe dumped garbage into a sorting component, separates and piles recyclables materials in the dumped garbage, crushes gravel and the like for paving roadbeds, reduces the blowing of the generated dust by spraying water to the utmost extent to ensure the air quality in the area nearby.

The invention discloses a method for using construction waste to produce renewable aggregate. Through the steps of primary selection, material feeding, crushing, conveying, selection, secondary selection, and the like, the construction waste is crushed into a construction aggregate mixture from which the renewable aggregate with a regulated particle size is selected, so that the discarded construction waste can be recycled. Except a small amount of earth, all construction waste can be fully used, so that the secondary pollution is prevented, the environment is protected and the land is conserved. The method realizes actual comprehensive utilization rate of the construction waste close to 100 percent and achieves the utilization of the city construction waste as a resource.

The invention discloses a solid construction waste processing and treating system which comprises a compound crusher, a double-cone crusher, a high-frequency vibrating screen, a water separator and a stone surface treatment machine, wherein solid construction waste with the rated size is crushed into the size less than that of preset particles by the compound crusher and enters the double-cone crusher to be further crushed into particles with the size less than that of another preset particles; the crushed particles are fed into the high-frequency vibrating screen and are separated to be in grades which are smaller than or equal to a large grade, a middle grade and a small grade, the particles of different grades are fed into the water separator to separate out stones, red bricks, pure concrete particles, as well as remove floating matters; and finally, the stones with different particle sizes are fed into the stone surface treatment machine, and the concrete layers on the surfaces of the stones are removed. The system is simple in structure, the stones and other building materials which accord with the building standard can be treated, waste materials can be changed into valuable materials, and the system is environment-friendly.

The invention discloses a fine crushing device for construction waste. The fine crushing device for construction waste comprises a box body. A grinding drum is arranged in the box body, uniformly formed sieve pores are formed in a cone-shaped surface of the grinding drum, and a grinding head is embedded into the grinding drum. By arranging a grinding head capable of rotating up and down and the grinding drum provided with the sieve pores, preliminarily crushed construction waste is ground rotatably and screened. By arranging a grinding plate at the bottom of the grinding head, the constructionwaste accumulated at the bottom of the grinding drum is ground and crushed and pulled and screened outward. By arranging a supporting shaft, the grinding drum rotates to screen the construction waste, so that the screening efficiency is improved and the sieve pores are prevented from being blocked.