31results about How to "Reduce outbound volume" patented technology

A harmless treatment technology for town household garbage comprises the following specific steps that 1, the town household garbage is collected; 2, the collected town household garbage is subjected to coarse breaking; 3, the materials subjected to coarse breaking are subjected to primary screening, oversize products obtained after primary screening are subjected to gravity separation, and undersize products obtained after screening are subjected to primary aerobic fermentation; 4, the materials obtained after primary aerobic fermentation are subjected to fine breaking; and 5, the materials subjected to fine breaking are subjected to secondary screening, oversize products obtained after secondary screening are subjected to gravity separation, undersize products obtained after secondary screening are subjected to secondary aerobic fermentation and decomposition, namely, a curing procedure, the water content of the cured materials is reduced to 30% or below, and nutrient soil is produced. The technology is advanced, scientific and environment-friendly, the town household garbage is turned into wealth, the nutrient soil with high market value is produced, reducing, recycling and harmless treatment of the town household garbage is achieved, and town pollution is reduced.

The invention relates to the technical field of drilling equipment, and discloses a construction method for a prestressed pipe pile, wherein the method is used for pile forming in a reclamation area. The method comprises the following steps that firstly, a main drill hole is formed through a down hole hammer, and a total pile casing is utilized for following drilling of the down hole hammer until the down hole hammer and the total pile casing pass through a rock filling layer; secondly, the down hole hammer is lifted and pulled, the total pile casing is filled with sandy soil until the filled sandy soil reaches the upper surface of the reclamation area, the total pile casing is lifted and pulled, and a sand filling hole is formed through the main drilling hole; thirdly, external force is exerted on the upper end of the prestressed pipe pile, the prestressed pipe pile passes through the sand filling hole, and the lower end of the prestressed pipe pile is embedded in a bed rock below the rock filling layer. According to the construction method for the prestressed pipe pile, the position where a pile needs to be formed in the reclamation area is drilled through the cooperation of the down hole hammer and the total pipe casing pipe following, the main drilling hole passes through the rock filling layer, the rock filling layer is converted into the sandy soil, a hammer pile machine and the like are utilized for continuing to drive the pipe pile, the pipe pile easily passes through the rock filling layer, and the construction method has the advantages that the hole forming speed and construction efficiency are high, construction cost is low, the construction period is short, and the construction field is clean.

A capsule-type solid-liquid separation device comprises a rough filtration device, a slurry storage tank, a transfer pump, a filter press and associated pipelines and valves, which are intensively arranged on a box using as a storage tank for slurry and filter cake. A preliminary filtrate passage of the rough filtration device is connected with a sewage pipe network, and a slurry discharge passage is connected with the slurry storage tank; a slurry feed pipeline of the transfer pump is connected with the slurry storage tank, and a slurry discharge pipeline is connected with the filter press; the filter press is a capsule-type one, a filter cylinder is provided inside with the pressing capsules, and a blanking passage is provided inside with filling capsules; the pressing capsules expand under the effect of the introduced high pressure fluid, and extrude the filter material in the filter cylinder for operation; the filling capsules expand under the effect of the introduced pressure fluid and fill the blanking passage, to cut off a lower opening of the filter cylinder with the blanking passage; and the blanking passage is communicated with the filter cake storage tank. The device has the advantages of compact structure, little land occupation, no noise and easiness for movement, and is especially suitable for solid-liquid separation of kitchen garbage crushing fluid in high buildings and in the field.

The present invention ptovides saponified sewage treating method, and the method is one mechanical speeded clarification plus horizontal screw centrifugal machine separation plus neutralization method. The method has the functions of smooth running, high economic property, high controllability and high separation effect.

The invention discloses a SCAP-type soil pressure balance shield mud for opening a cabin, which comprises the following components according to the mass parts: 50-80 parts of silt, 400-600 parts of clear water, 100-150 parts of calcium-based bentonite, and a modifier 2~6 parts and 0~2 parts of tackifier. It also discloses the preparation method of mud for SCAP-type earth pressure balance shield opening: the waste silt produced when the shield tunnels into the silt or silty clay layer is dried, passed through a mesh screen, and stored near the muck pit. When the shield machine needs to be opened under pressure, add stored silt, clear water, calcium-based bentonite, modifier and viscosifier to the mud truck, and stir continuously to prepare a product that meets the mud density and viscosity requirements. Utilizing the discarded dregs during the excavation process can save bentonite resources and opening costs, and reduce the environmental pollution caused by the amount of muck transported abroad, and prepare mud for opening that meets the requirements of density, viscosity, physical and chemical stability, etc. .

The invention discloses a sewage treatment method for a sapphire crystal polishing liquid waste. The method comprises the following steps: adjusting the pH value of the sapphire crystal polishing liquid waste by using a rinse wastewater for rinsing a machine tool and ground, and forming an electric flocculation body by using a flocculant and suspended solids in the sapphire crystal polishing liquid waste; accelerating clarification by using a machine, and finely filtering the wastewater as rinse water to reuse through a continuous sand filter; separating sludge and liquid in mud sewage by using a folded screw sludge dewater, returning filtration liquid to the machine to accelerate clarification; outwardly transporting a dry mud cake to process, so as to efficiently, economically and safely process the sapphire crystal polishing liquid waste.

A cement soil preparation system suitable for different fluidities and soil bodies includes a soil material sieve separator, a soil material measuring bin, a slurry stirring station, a cement bin, a cement measuring bin, a cement slurry stirring station and a slurry storage tank; the soil material sieve separator is used for sieving a soil material, and the sieved soil material is transported to the soil material measuring bin through a conveying belt 19; the soil material measuring bin is used for weighing a certain amount of soil material according to the set weight, and the weighed soil material is transported to the slurry stirring station through a conveying belt conveyor 3; the slurry stirring station is used for stirring the soil material and water according to the set fluidity, theslurry after stirring is transported into the slurry storage tank; the cement bin is used for storing cement, and a discharge port of the cement bin is connected to an inlet of the cement measuring bin by an air compressor; the cement measuring bin is used for weighing a certain amount of cement according to the set weight, the weighed cement is transported to the cement slurry stirring station through a delivery pipe 22; the cement slurry stirring station is used for stirring the cement and other material flows according to the set fluidity, and the slurry after stirring is transported intothe slurry storage tank; a discharge port of the slurry storage tank is connected with a grouting pipe.