102results about How to "Not affected by season" patented technology

Disclosed is a rice field eel fodder which is prepared from fish meal, flour, soya bean waste, brewer's yeast grease, cereal meal, calamari marrow powder, fish oil, anti-fungus agent, oxyneurine, rice field eel multivitamin, rice field eel minerals through the steps of weighing raw material, first mixing with blenders, ultramicro disintegrating, cleaning and roguing, second mixing with blenders, low-temperature bulking with swelling machines, drying with drying-machines, spraying fish oil through a grease outside spraying system, drying with a refrigerator, sifting with grading sieves and sacking.

The invention discloses a water culture nutrient solution of spinach beet. The water culture nutrient solution comprises macroelements, microelements and water as well as calcium nitrate tetrahydrate, potassium nitrate, ammonium dihydrogen phosphate, magnesium sulfate heptahydrate, ammonium nitrate, boric acid, copper sulfate, sodium silicate, magnesium sulfate, cobalt chloride, nickel chloride, potassium sulfate, potassium chloride, ethylene diamine tetraacetic acid, ferrous sulfate septihydrate, manganese sulfate tetrahydrate, copper sulfate pentahydrate, ammonium nitrate, calcium carbonate, potassium iodide, sodium chloride, ferric sulfate, lead acetate and sodium citrate. According to the water culture nutrient solution of the spinach beet, the absorption utilization rate is high and the waste caused by nutrition excess or deficiency resulted by no pertinence of a water culture nutrient solution of the spinach beet in the past is avoided.

The invention relates to an additive of fuel, in particular to an additive of high-proportion methanol gasoline, such as M50 methanol gasoline. The additive is characterized in that the additive in the total volume ranging from 2% to 5% is added into the methanol gasoline and consists of 60% to 70% of mutual solvent formed by compounding alcohols, alcohol ethers, esters and acetones according to optional proportion, 24.4% to 30% of ignition agent formed by compounding fatty hydrocarbons, aromatic hydrocarbons and methyl tertiary butyl ether according to optional proportion, 4% to 6% of combustion improver formed by compounding nitryls and nitrate esters according to optional proportion, 1% to 3% of corrosion inhibitor formed by compounding phenols and grease according to optional proportion, and catalyst and anti-oxidant stabilizer in proper quantity. By the aid of the additive, the service life of a gasoline tank can be prolonged evidently, methyl alcohol system of the gasoline can be effectively guaranteed against being deteriorated and layered easily, and the problems of poor startability and power performance and the like can be solved effectively. The additive is rich in raw material sources, simple in production process and procedures and convenient in use and popularization.

The invention relates to an aerial suspension airing device for materials. The device aims at solving the technical problems during material airing at present. The device comprises a column fixed on the ground and is characterized in that a lifting unit capable of moving vertically is arranged on the column, and a material suspension unit is arranged on the lifting unit. The airing device is reasonable in structure, convenient to operate and small in material airing occupied area; airing is not affected by seasons, and good appearance is provided for products made by dried materials; labor costs can be saved greatly, the land pollution is reduced, and airing device can be widely applied to material airing.

The invention relates to a ventilating, noise-reducing and cooling method and device for an unpowered electric transmission and transformation device and belongs to the field of electric power protection. According to the ventilating, noise-reducing and cooling method for the unpowered electric transmission and transformation device, air inside a cable tunnel is led into a substation chamber through an air inflow pipe, the used device comprises a cable conduit and the substation chamber, a rotating air exhaust fan is installed at the position of an overhaul well of the cable tunnel, joints of the cable tunnel and the substation chamber are communicated through the air inflow pipe, and an exhaust fan is arranged at the position inside the substation chamber corresponding to the position of an outlet of the air inflow pipe. According to the ventilating, noise-reducing and cooling method and device, the problem that room temperature of a transformer room is too high when a substation in a city is faced with a summer peak load period can be solved, disputes of disturbance to residents caused by noises generated by fans are also avoided, smooth stable running of indoor devices is guaranteed, energy is saved, consumption is reduced, and reliability of power supply of a power grid is improved.

The invention discloses a method for producing edible salt from sea water through an industrial process and a processing device of the edible salt. The method for producing edible salt from sea water through the industrial process comprises the following steps: extracting seawater, preprocessing, concentrating, preheating, concentrating and crystallizing. The processing device of the edible salt comprises a preprocessing unit, a reverse osmosis unit, a pre-heater, a mechanical steam recompression evaporation device and a post-processing unit. Compared with the salt pan method, the method has the advantages that the large quantity of soil is saved; meanwhile, the influence of season is avoided, the investment is low and the labor is saved. By taking annual output of 50000 tons of edible salt as an example, an area of nearly 2500 acres is occupied in the salt pan method, but an area of only 50 acres is occupied in the method; the number of the required persons in the method is only 1 / 10 that of the required persons in the salt pan method; the basic investment for producing every ton of salt through the method is only 1 / 5 that of the salt pan method; the purity and the concentration of brine of the method are higher than those of the salt pan method; important chemical raw materials such as calcium sulfate, magnesium sulfate, potassium chloride, calcium chloride and bromine water can be extracted from the crystallized bittern; the energy needed for operation of the device is clean energy which is electric energy; the device is high in degree of automation, capable of continuously producing the salt in 24 hours, free of steam and really emission-free and pollution-free.

Provided is a water treatment system based on an ecological core wetland. The water treatment system includes an upper undercurrent wetland layer and a lower biological filter layer; the upper undercurrent wetland layer includes a support net frame, planting grooves (15-2), a filler (2), plants (3), a water inlet pipe and a water outlet pipe; the lower biological filter layer includes filter bodies, a water inlet pipe, a water outlet pipe, biomedia (6), aerating devices (7), a sludge discharging pipe (8), a water outlet (10) and a flow adjusting device (11); the water treatment system furtherincludes a dosing system (microorganisms and carbon sources) and a remote control system. An undercurrent wetland filler layer includes a phosphorus adsorption material at least, the plants are planted on the filler layer, and through the interception, sedimentation and adsorption effects of the filler layer, the microbial action of the filler layer and the absorption effect of plant root systems,pollutants in water are removed together; biological filters are a plurality of treating pools, wherein part of the treating pools are filled with the biomedia; flow is guided among the treating pools through guide pipelines; water flow channels are arranged between the upper undercurrent wetland layer and the lower biological filter layer.

The invention relates to the technical field of biogas fermentation devices, and is a thermal insulation biogas fermentation tank; it includes an inner tank, an outer tank, a feeding device, an exhaust device, an overflow device, a discharge device, an insulating layer and a stirring device; the inner tank It is fixed together with the outer tank, and a heat insulation cavity is formed between the inner tank and the outer tank, and an insulation layer is installed in the heat insulation cavity, and the upper part of the outer tank and the inner tank is fixedly installed with a feeding material communicating with the inner cavity of the inner tank. fittings, exhaust fittings and overflow fittings. The invention has a reasonable and compact structure and is easy to use. By installing a thermal insulation layer in the thermal insulation chamber, the thermal insulation effect is good, and the heat generated in the fermentation process can be fully utilized to achieve the temperature required for subsequent fermentation. Through the adjustment of the temperature control device, the The temperature inside the fermenter is always at the optimal fermentation temperature, so as to ensure that the adiabatic and heat-retaining biogas fermenter is not affected by the seasons, so it not only improves the biogas production rate, but also reduces energy consumption and saves costs.

The present invention relates to an anchoring structure, in particular to an anchoring structure for reinforcing T-beam FRP, which comprises a reinforcing material FRP sheet at the bottom of the T-beam rib, and a pressing plate at the lower end of the FRP sheet; The pressing plate is supported by at least two U-shaped screw rods with threaded upper ends, and the upper ends of the U-shaped screw rods pass through the T-beam wing plate and the upper edge top plate respectively, and are fastened by gaskets and nuts. The invention utilizes frictional resistance and cohesive force to achieve a good anchoring effect, which not only avoids secondary damage to the reinforced structure, but also does not cause brittle instant damage to the anchoring structure itself, and is simple and convenient in construction, and is not affected by seasons Features, high degree of industrialization, easy to popularize and use.

The invention discloses a method for constructing recycled mixed concrete beams and slabs. The method includes mounting conventional reinforcing steel bars of the beams and slabs in two processes, to be more specific, mounting the bottom reinforcing steel bars at first, then placing waste concrete blocks, mounting the upper reinforcing steel bars and ultimately pouring new concrete. An upper L-shaped stirrup and a lower L-shaped stirrup are secondarily mounted for manufacturing a stirrup of each beam, mounting joints are arranged at upper positions separated from the bottoms of the stirrups by 2 / 3 L, and slab surface bars are integrally lifted by the aid of cold-rolled reinforcing steel bar meshes. Integral lifting techniques are implemented for the slab surface bars by the aid of the cold-rolled reinforcing steel bar meshes, to be more specific, slab bottom bars are mounted at first, then waste concrete blocks are placed after the slab bottom bars are completely mounted, and cold-rolled reinforcing steel bar mesh surface layers are lifted. The new concrete is integrally poured after working procedures are completed. The method for constructing the recycled mixed concrete beams and slabs has the advantages of safety, flexibility and convenience in use, high construction efficiency and suitability for constructing the recycled mixed concrete beams and slabs.

The invention provides a satellite remote sensing image physical color uniformity method. The method comprises the steps that 1) a cross calibration method is used, and a Dunhuang radiation correction field is used as a transmission platform and a MODIS image is used as a reference standard to acquire the absolute radiation calibration factor of a certain camera of a GF-1 satellite WFV sensor; 2) a statistical analysis method is used to establish the correlation model of the adjacent camera image DN value; 3) a simulation method is used to establish the correlation model of the adjacent camera image apparent radiance; 4) a self-radiation calibration calibration model is established to realize absolute radiation calibration of another camera; and 5) each camera calibration coefficient is used to convert the image DN value to the apparent radiance to realize image physical color uniformity. Compared with the traditional color uniformity method, physical color uniformity between cameras is realized without destroying the original image radiation information.

Vanillin bacteria from microbial conversion isobutyl aromatic phenol and its production are disclosed. The process is carried out by fermentation culturing under optimizing condition, converting isobutyl aromatic phenol for 24í½96hrs from fermentation liquor or free cell or fixed cell with conversion liquor containing vanillic acid 2í½4g / L, conversion reacting for 72hrs in water-organic solvent double-phase system with vanillin concentration 32.5g / L in organic phase, adsorbing vanillin in conversion liquor from resin, extracting from ethyl acetate and obtaining light yellow crystalline vanillin powder. Extraction rate reaches 87%, purity of product reaches 98.1% and recovery rate reaches 93.4%.

The invention provides a shoot-tip tissue culture medium for Sasa argenteastriatus, which comprises the following components: 2.0 to 3.5 mg / L of MS culture medium supplemented with 6-BA and 0.001 to 0.003 mg / L of TDZ. The shoot-tip tissue culture medium can induce the growth of buds and roots and realize the rapid propagation and multiplication of regenerated seedlings. The method of tissue culture and rapid propagation using the shoot-tip tissue culture medium comprises the following four steps: explant collection and selection, bud induction and propagation, root induction and acclimatization and transplantation. With the method of tissue culture and rapid propagation using the shoot-tip tissue culture medium, the multiplication coefficient reaches 5.2, the rate of root regeneration in the test tube is as high as 100%, and the survival rate of transplanting test-tube plantlets reaches 95%. The culture medium overcomes the difficulty in tissue culture and plant regeneration of mature bamboo explants, realizes the induction of clustered buds and roots and the cultivation of regenerated plants, reduces the land, maternal plant, time and cost, solves the season limitation on propagation, and lays the foundation for bulk potted landscaping and large-area afforestation of bamboo and rapid and sufficient supply of bamboo seedlings.

The invention relates to a method for producing betanine with suaeda salsa seed, which comprises: sowing the suaeda salsa seeds in a cultivation container containing sand bed, placing the container for cultivation for 2 to 5 days under dark environment, clipping red seed leaf of the germ of the suaeda salsa, adding methanol solution after completely grinding, shaking uniformly and centrifuging, taking supernatant, and performing vacuum concentration through a vacuum rotary evaporator to obtain betanine powder. The raw material of the invention is easy to take and store, and can not be affected by seasons, the production method is simple, the period is short and the purity of the betanine is high.

The invention discloses a 2,4-D dimethylamine salt soluble granule which comprises the following components in percentage by weight: 10-98 percent of 2,4-D dimethylamine, 0.1-15 percent of an adhesive, 0.1-5 percent of a synergist and the balance being filler. A preparation method for the 2,4-D dimethylamine salt soluble granule comprises the following steps of mixing 10-98 percent of the 2,4-D dimethylamine, 0.1-15 percent of the adhesive, 0.1-5 percent of the synergist and the residual filler for granulation, and drying granulated granules. The preparation method is reliable; the obtained 2,4-D dimethylamine salt soluble granule is high in particle strength and high in dissolve dispersion performance; compared with a 2,4-D dimethylamine salt water agent, the 2,4-D dimethylamine salt soluble granule has the advantages of convenience in use and transportation and safety and stability in storage.

The invention discloses a method for constructing artificial seeds with pleione protocorm as a material. The method comprises the steps: induction and multiplication of the pleione protocorm and production and sowing of the artificial seeds. The method is characterized in that a plant tissue culture technology is combined with an artificial seed technology, and protocorm-like bodies generated by inducing base parts of pleione seedlings are utilized and multiplied to serve as propagules of the artificial seeds, so that large-scale production can be realized. The method has the advantages of noinfluence from the season, short breeding cycle, low cost and convenience in storage; the problem of increasing depletion of pleione resources is effectively solved and a technical support is providedfor industrial development of pleione.

The invention discloses a method for conversing microbe to prepare ethyl (S)-3-hydroxy-3-(2-thienyl)-propanoate. The method includes the following steps that: 3-carbonyl-3-(2-thienyl)-propionic acid ethyl ester is regarded as substrate; immobilized cell particles prepared by fermentation liquor which is obtained from fermenting a wine yeast strain CGMCC No. 2266 are used as a biocatalyst; a biological transformation system is formed by a dibutyl phthalate solvent; a conversion reaction is performed for 8-72 hours at a temperature of from 20 DEG C to 40 DEG C; a conversion fluid is isolated and purified to obtain the ethyl (S)-3-hydroxy-3-(2-thienyl)-propanoate. In the invention, with mild reaction condition and friendly environment, the products possess high optical purity and conversion rate of the substrate is high. Processes of isolation and purification are simple. The catalyst is reusable. Therefore, industrial production can be achieved by using the method.

The invention discloses a separation method of a highway RAP (Reclaimed Asphalt Pavement) material, and belongs to the technical field of separation of the highway RAP material. The method comprises:firstly, after grinding and drying the highway RAP material, inputting the ground and dried highway RAP material into an extractor; after carrying out extraction processing by a composite solvent, separating out asphalt oil and a sand and gravel material; after evaporating mixed oil formed by the asphalt oil and the composite solvent by a distillation still, pumping the obtained asphalt oil into an asphalt oil tank; condensing evaporated composite solvent gas into liquid for recycling; heating residual materials in the extractor to a temperature of 90 to 130 DEG C, controlling a vacuum degreeto be within a range of 1.5 to 3KPa, and after converting the residual composite solvent in the sand and gravel material into gas for output, outputting the sand and gravel material. In the separationprocess, the highway RAP material is processed by the specific composite solvent and process parameters, an extraction rate of the asphalt oil is 94% or more, and less asphalt is left in the separated sand and gravel material.

The invention discloses a method for constructing a soil percolation bed body for sewage treatment in cold areas. The method comprises the following steps: (1) digging a percolation bed body, compacting the percolation bed body around by using concrete, and paving a layer of high-density polyethylene film; (2) paving a water collection tube at the bottom of the percolation bed body, and paving gravel around the water collection tube; (3) paving an artificial soil layer above the gravel; (4) paving an anaerobic tank above the artificial soil layer, and filling the anaerobic tank with a mixture of gravel and expanded perlite bulk cargos; (5) paving a water dispersion tube right above the anaerobic tank; (6) paving cultivated soil above the artificial soil layer; and (7) paving straw on the surface of the cultivated soil, and paving non-woven cloth above the straw, thereby completing the soil percolation bed body for sewage treatment. The soil percolation bed body for sewage treatment in cold areas, which is constructed by using the method, is not affected by seasons, is wide in application range and is particularly applicable to cold areas, and the water quality of the effluent obtained after treatment can meet landscape surface water environment quality standards.

The invention discloses zebrina pendula hydroponic nutrient solution. The zebrina pendula hydroponic nutrient solution is composed of lots of elements, trace elements and water, wherein the nutrient solution comprises calcium nitrate terahydrate, potassium nitrate, ammonium dihydrogen phosphate, magnesium sulfate heptahydrate, ammonium nitrate, boric acid, copper sulphate, sodium silicate, magnesium sulphate, cobalt chloride, nickel chloride, potassium sulphate, potassium chloride, sodium ethylenediaminetetraacetic acid, ferrous sulfate septihydrate, manganese sulphate tetrahydrate, copper sulfate pentahydrate, ammonium nitrate, calcium carbonate, potassium iodide, sodium chloride, sodium molybdate, ammonium molybdate, ferric sulphate, lead acetate and sodium citrate. The zebrina pendula hydroponic nutrient solution is high in absorbtion and utilization rate, and can be used for solving the waste caused by excessive or insufficient nutrition due to no pertinence of the previous zebrina pendula hydroponic nutrient solution.

The invention discloses a comprehensive breeding method for superior winter jujube seedlings. The method is characterized in that tissues of a winter jujube plant are removed from a plant body under an aseptic condition, and the tissues are placed in a glass container in which light, temperature, moisture and nutrients are controlled manually for culturing, so that the tissues live or develop continually and are developed into a complete winter jujube plant finally; breeding is performed under an indoor manually-controlled environmental condition, asexual propagation is performed, and rapid propagation and production can be realized; manual control is adopted, and is not influenced by seasons; land is saved; the screening performance is high, and virus-free seedlings can be bred; greater convenience is brought to purification and selection of varieties. Zhanhua brumal jujube nursery stocks produced with the method can keep superior properties of a parent body, are free viruses, and have high disease resistance and stress resistance; the nursery stocks are robust, are short in internodes, and are developed in root systems; a full productive age is entered in advance, and the fruiting quality is high.

The invention provides a preparation method of active abietic acid derivatives through the biological conversion of rosin, which comprises the following steps of: performing routine culture on trichoderma virens B7 strains in a PDA (Potato Dextrose Agar) culture medium to obtain activated strains, inoculating the strains to a PDB (Potato Dextrose Broth) culture medium for fermentation to obtain mycelium pellets; adding the mycelium pellets and substrates into a fixed culture medium to culture for 5-7 days; immersing and extracting a solid culture through 95% ethanol; filtering and concentrating the extract to obtain the extractum of the crude extract of converted products; extracting the extractum of the crude extract of the converted products through petroleum ether and ethyl acetate; and finally separating and purifying the extract through thin layer chromatography, silica column chromatography LH-20 gel chromatography and efficient liquid chromatography to obtain a compound S-1 (7alpha,13beta-dyhydroxy abietic-8(14)-olefin acid. The preparation method has the advantages of high efficiency, high selectivity and moderate reaction conditions; the cost is saved; and the obtained compound (7alpha,13beta-dyhydroxy abietic-8(14)-olefin acid) plays an inhibition role on escherichia coli, bacillus subtilis, bacillus cereus, bacillus megaterium and staphylococcus aureus respectively.

The invention relates to the field of agriculture, and discloses a root hair tissue culture rapid seedling-raising method for broussonetia papyrifera. The method comprises the following steps: 1) cutting root hair: excavating the female parent broussonetia papyrifera, washing the root hair, cutting the root hair with a diameter of 1-5 mm to obtain root hair with a length of 3-4 cm, and soaking theobtained root hair in a growth promoting agent; 2) preparing a soilless nutrient substrate; 3) performing tissue culture; 4) exercising seedlings; and 5) performing field transplantation: 28-32 daysafter seedling exercising is performed, transplanting the root hair to a field. The method provided by the invention adopts the root hair of the broussonetia papyrifera for the tissue culture, the seedling raising period is short (seedlings only needs about 45 days to grow to 30 cm or more, and the seedlings can be transplanted to the field), the costs are low, the survival rate is high, and a variety in the later period is not easy to degrade.

The invention relates to a construction method of a protein microcrystal embedded CyHV-2 (cyprinid herpesvirus II)-type-GCRV (grass carp reovirus) subunit vaccine based on a yeast expression vector. An AOX1 promoter is used for controlling a silkworm cypovirus protein gene; a TEF1 promoter is used for controlling VP6 and VP7 from GCRV and CyHV-2 ORF72, ORF66, ORF81, ORF82 and an antigenic epitopefusion sequence VP6-VP7-ORF72-ORF66-ORF81-ORF82-VP3 obtained after codon optimization of cypovirus VP3. The vector transforms yeast, inducible expression is performed through methanol, expressed poly-antigen epitope fusion protein is embedded in recombinant cypovirus protein under the guide of cypovirus VP3, a protein microcrystal of embedded CyHV-2-GCRV is formed, the protein microcrystal is split by a sodium carbonate-sodium bicarbonate solution, the pH is regulated to 7.12 with a hydrochloric acid solution, and a supernatant obtained after centrifugation is CyHV-2-GCRV joint subunit vaccineantigen.

The invention discloses a process for constructing an impervious concrete wall by using an open excavation and inverted construction method. The process comprises the steps of constructing guide grooves and a construction platform, segmentally constructing lining walls from top to bottom and pouring an impervious wall from bottom to top. The process is adapted to the perpendicular open excavation of an ultra-long, ultra-deep and large-section impervious wall structure; compared with those of an impervious concrete wall constructed by a conventional method, groove holes constructed by an open excavation and inverted construction grooving process have the advantage that high-flow regime concrete has better compaction effects on the lining walls and soil bodies on the two sides, so that the stress relaxation conditions of the soil bodies on the two sides are changed, and changes in the permeation boundary conditions of the impervious concrete wall are small; the impervious concrete wall constructed by the open excavation and inverted construction method has tangible construction quality, and procedure and process control is ensured, so that the problems of high hole collapse rate and low grooving efficiency of the groove holes during the construction of a loose sandy gravel layer impervious concrete wall are solved, and the joint quality of the impervious concrete wall is ensured.

The invention discloses a green pesticide and a preparation method thereof. The green pesticide is prepared from 6 parts of bitter melons, 3 parts of onions, 4 parts of radix sophorae flavescentis, 3 parts of sessile stemona roots, 2 parts of incised corydalis herb, 5 parts of bouquet larkspur herb or roots, 3 parts of common threewingnut roots, 6 parts of pyrethrum, 7 parts of leaves of azadirachta indica A.Juss, 4 parts of tomato leaves, 4 parts of kanazawa spider mites, 3 parts of cutworms, 5 parts of Chinese weeping cypress leaves and 6 parts of plant ash. The green pesticide and the preparation method thereof have the advantages that by means of the novel green pesticide and the preparation method thereof, the defects that in the prior art, the cost for preparing the green pesticide is high, the efficiency is low, and a large number of chemical agents need to be input are overcome; the green pesticide is prepared by mixing roots and leaves of some herbaceous plants and some catalysts and organic solutions, the whole production process is high in efficiency, sewage is not produced basically, and the cost for sewage treatment is greatly reduced; meanwhile, the raw materials are low in price and are not affected by seasons, the fund for production of an enterprise is reduced, and certain contribution is made to the environment.

The invention relates to a dealcoholized condensed dual-component room-temperature vulcanized silicone rubber building sealant and a preparation method thereof. The sealant comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 100:(10-8), the component A includes a basic polymer, a plasticizer and a filling material, and the component B includes dimethicone oil, a cross-linking agent, a coupling agent and a catalyst. The sealant is improved in hot-water-resistant bonding performance on aluminium products and glass, is not affected by seasons, and high in construction operation stability.

The invention discloses a method for producing an ultra high molecular weight polyethylene wear-resistant pipe, and the method belongs to the technical field of production of tubes and pipes. The method comprises the following steps of: 1) evenly mixing polyethylene powder above 1.5 million molecular weight and polyethylene sodium which accounts for 4-6 percent of the total weight; 2) extruding the obtained material in the step 1) in an extruder, wherein a mold head adopts a pipe making mold head, and the extrusion temperature is 160-230 DEG C; 3) carrying out the cooling and shaping on the extruded pipe material by adopting high-temperature-resistant and anti-wear oil, the temperature for cooling and shaping is 115-118 DEG C; 4) carrying out the traction on the shaped pipe material and cutting the shaped pipe material into the appropriate length; 5) increasing the temperature of the pipe material to 90-110 DEG C and carrying out the edge-turning on pipe ends at two ends. As the polyethylene sodium is added in raw materials in the method as a lubricant, when in extrusion in the extruder, the surface is smooth and the extrusion is easy; when cooling, the method adopts the high-temperature-resistant and anti-wear oil, the oil temperature is constant and not affected by seasons, the shaping of the pipe material is good and the product quality is stable.

The invention discloses an oil sand separation method, and belongs to the technical field of oil sand separation. The oil sand separation method comprises following steps: an oil sand raw material issubjected to crushing and drying, and is introduced into an extractor; the oil sand raw material is subjected to extraction using a composite solvent in the extractor so as to obtain an asphalt and composite solvent mixed oil through separation; the asphalt and composite solvent mixed oil is pumped into a filter, impurities are removed, and the asphalt and composite solvent mixed oil is pumped into a distillation still for evaporation so as to obtain asphalt oil, and the asphalt oil is pumped into an asphalt tank; the composite solvent gas is converted into liquid through condensation for recycling; a mixed material obtained in the extractor is heated to 90 to 130 DEG C, the vacuum degree is controlled to be 2 to 3KPa, stirring is carried out, the composite solvent in tailings is convertedinto gas state for discharging, the composite solvent gas is subjected to condensation so as to obtain a liquid for recycling, and tailings output is carried out. According to the oil sand separationprocess, the specific composite solvent and technological parameters are adopted for processing of oil sand, the asphalt extraction rate in oil sand is 97% or higher, and asphalt left in the tailingsis low.