511results about How to "Low energy consumption" patented technology

The invention relates to a long-distance dense-phase conveying system provided with an assistant blowing device and a method thereof. The conveying system comprises an air control apparatus formed by an air compressor, an air storage tank and a system control apparatus; a material storage bin and an on-line sub-bin which are formed by a material tank, a bin controller and a solid-air separator; a sending tank; a fluidization conveyor formed by a streamline casing, a guiding clapboard and an air inlet; a tube liner provided with air inlets arranged by an outer conveying pipe according to subsections and a dense-phase conveying pipeline formed by the assistant blowing device . The tube liner is fixedly connected with the inner upper wall of the outer conveying pipe; the assistant blowing device is fixedly connected and communicated with the outer pipe and tube liner. The dense-phase conveying method comprising the following steps: materials enters the sending tank from the material storage bin and then enters the dense-phase conveying pipeline through the fluidization conveyor and under the effect of compressed air to form a series of material plugs flowing in the conveying pipeline and finally the material reaches the sub-bin for processing and manufacturing. The invention has the advantages that the energy cost is low; the damage to material during the conveying process is less; the wearing to pipeline can be reduced; and the service life is long.

The invention discloses a clutch facing piece for an automobile and a production method thereof. The production method comprises the following steps: stirring 10-20% of water soluble phenolic resin, 0.5-1.5% of alumina, 4-8% of crystalline flake graphite, 0.6-1.2% of antimony trisulfide, 6-10% of ground calcium carbonate, 8-12% of chalcopyrite powder, 6-10% of magnetite powder, 3-8% of vermiculitepowder, 12-18% of barium sulfate, 6-15% of powder nitrile-butadiene rubber and water according to parts by weight of each component, preparing suspension, then dipping 15-25% of basalt fibre and obtaining a product by drying, winding, pressing, heat treatment and mechanical processing. By using the invention, the temperature resistance and the wear resistance of the clutch facing piece for the automobile are enhanced, a phenomenon of dust raising in the production and use process is reduced, and the product is more affinitive to the environment.

The invention provides a system device for directly and effectively spray-drying high-solid-content sludge, which comprises a hopper, wherein the hopper is connected with a feed pump and used for feed agitation, the feed pump is connected with one end of a nozzle in a spray drying tower through a pipeline, and the other end of the nozzle is connected with an air compressor; an air inlet at the lower part of the spray drying tower is connected with a hot blast furnace through the pipeline, the top of the spray drying tower is connected with a dust remover through the pipeline, the dust remover is connected with a smoke gas wet recovery tower through the pipeline provided with an exhaust fan, and the recovery tower is communicated with a pool arranged at the bottom of the recovery tower and a nozzle at the top through the pipeline provided with a water pump. The invention also provides a method adopting the system device for directly and effectively spray-drying the high-solid-content sludge. The invention has the effects that the energy consumption is low by using the method, and the atomized sludge has small grains, uniform diameter, good drying effect, high loosening degree and high porosity and is markedly superior to other drying forms. The produced drying sludge is adaptable to the paths of combustion heating, cement manufacture, greening, landfill and the like.

An electric power tool includes a percussion mechanism (15) located in an external housing (12) of the power tool (11) and driven by a driving motor (13) connected with the percussion mechanism (15) by a gear unit (14). An arrangement for cooling the power tool (11) includes a fan element (19) located in the external housing for generating a cooling air flow (26), a cooling air channel (18) extending along a longitudinal extent of the percussion mechanism (15) and a cross-section of which has a constriction (21; 51), a fresh air channel (31; 61) having an intake opening (32; 62) for communicating with atmosphere and formed in the external housing (12; 42) and a connection opening (33; 63) for communicating with the cooling air channel (18; 48) and arranged in an area of the constriction (21: 51) of the cooling air channel (18; 48).

The invention discloses a preparation method of flake-shaped aragonite calcium carbonate. The preparation method comprises the following steps: (1) performing dry method coarse grinding to a shell raw material, soaking the shell raw material in lotion for 4-48h at normal temperature, utilizing roller watering to remove a cuticle layer and a prismatic layer, and obtaining nacreous layer calcium carbonate by washing; (2) adding water to the nacreous layer calcium carbonate, performing high-speed agitation to prepare slurry with the concentration to be 30-80wt%, adding a grinding aid with the weight being 0.5-5% that of the nacreous layer calcium carbonate, and using a stripping machine to perform wet grinding for 60-180min with zirconia ball, alumina balls or ceramic balls serving as grinding mediums; and (3) performing filter pressing and drying grinding to obtain the flake-shaped aragonite calcium carbonate. The preparation method of the flake-shaped aragonite calcium carbonate is simple in process and does not use a poisonous harmful reagent, the operation conditions are mild, the surface activity of the prepared flake-shaped aragonite calcium carbonate is good, and the flake-shaped aragonite calcium carbonate can be widely applied to industries such as plastics, papermaking, rubber, ink, coating, building materials, medicines and food.

The invention belongs to the technical field of semi-permeable membrane separation processes, and relates to a composite thin membrane with a multilayer composite structure and a preparation method thereof. The composite thin membrane is formed by coating nano-cellulose and a transition layer which is formed from a polyelectrolyte by a layer-by-layer assembling method on a porous supporting layer substrate in sequence, and then coating a polyamide selective membrane layer which is formed through a common interface polymerization reaction method. A composite thin membrane structure can be applied to preparation of a nano-filtration membrane, a reverse osmosis membrane and a forward osmosis membrane. The application of the composite thin membrane with the multilayer composite structure comprises tap water purification, municipal water supply, sewage purification, brackish water desalination, seawater desalination, drink juice concentration process, dairy industry, blood dialysis medicine industry and semiconductor industry.