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51results about How to "No dehydration" patented technology

Construction method of continuous three layer pavement of bottom base layer, lower base layer and upper base layer of cement stabilized macadam

The invention discloses a construction method of the continuous three layer pavement of a bottom base layer, a lower base layer and an upper base layer of cement stabilized macadam. The method comprises the steps of construction lofting; mixed material mixing and transportation; pavement and rolling; and joint connection treatment, wherein in the pavement and rolling step, two pavement machines take place in parallel, a lower supporting layer is wetted by sprinkling water and waterlogging is avoided, and the pavement of the bottom base layer of the cement stabilized macadam is carried out; when the first pavement machine carrying out the pavement by a distance of 5-10 meters, the second pavement machine begins carrying out the pavement, and always keeps the distance of 5-10 meters with the first pavement machine in a pavement process, and the rolling is instantly carried out after pavement and finishing; when a construction section of 200 meters is finished after the pavement and the rolling of the bottom base layer, the pavement of the lower base layer is carried out, and the rolling is instantly carried out after the pavement and finishing; after a construction section of 190 meters is finished after the pavement of the lower base layer, the pavement of the upper base layer is carried out, the lower base layer is constructed under the control of the pavement and rolling, and a construction section of 180 meters is carried out after the pavement of the upper base layer. According to the construction method, the working period is greatly shortened, and the caking property of the integrated structure is high; meanwhile, the maintenance cost of the two layers is saved, and the maintenance is relatively simple.
Owner:CHINA FIRST HIGHWAY ENG +1

Hydraulic control flexible automatic debristling machine for pig slaughtering

The invention relates to a hydraulic control flexible automatic debristling machine for pig slaughtering, in particular to hydraulic control flexible automatic debristling equipment in the pig slaughtering processing process. The hydraulic control flexible automatic debristling machine is characterized in that a sleeve roller chain is sheathed on a chain wheel and a back flexible debristling roller, a plurality of U-shaped fence sheets are arranged around U-shaped fences, the bottom layer of the U-shaped fences is provided with a stainless steel hole plate, a plurality of U-shaped fences are welded and connected with connecting rod shafts of a hydraulic oil cylinder into a whole, a scooping rake is in an L shape and is connected with the connecting rod shafts of the hydraulic oil cylinder, the flexible automatic debristling device consists of a rubber plate and a steel debristling plate, the steel debristling plate is riveted at the front end of the rubber plate, a water spraying device is arranged at the upper end of a machine frame, and a controller arranged on an electric control box is used for respectively regulating the debristling time and the pig inlet and outlet time. The hydraulic control flexible automatic debristling machine has the effects that the structure is simple, the operation is convenient, the debristling space is large, the production efficiency is high, the debristling time is short, the pig body volume is large, the injury on the pig body is small, the dewatering phenomenon cannot occur, and the hydraulic control flexible automatic debristling machine is widely used for automatic debristling processing equipment for pig slaughtering.
Owner:福瑞珂食品设备(济宁)有限公司

Gel plugging agent for deep profile control of higher temperature oil reservoir and preparation method of gel plugging agent

The invention relates to a gel plugging agent for deep profile control of a higher temperature oil reservoir, and a preparation method of the gel plugging agent. The gel plugging agent comprises 0.3-0.8 percent of nonionic polyacrylamide, 0.6-1.3 percent of a cross-linking agent A, 0.45-1.44 percent of a cross-linking agent B, 0.02-0.04 percent of a temperature stabilizer and 0.01-0.08 percent of a pH value regulator, wherein the cross-linking agent A is methenamine; the cross-ling agent B is hydroquinone or resorcinol; the temperature stabilizer is sodium thiosulfate, sodium bisulfite or sodium sulfite; and the pH regulator is sodium hydroxide, potassium hydroxide, sodium carbonate or sodium bicarbonate. The gel plugging agent disclosed by the invention has strong temperature resisting performance and can be used for the profile control operation of the high temperature oil reservoir with 100-160DEG C; the gel plugging agent has the characteristics of high strength after being gelatinized, stronger plugging capability for the stratum and favorable thermal stability; and in addition, after the gel plugging agent is stood at the temperature of 130 DEG C for 90 days, the strength change is little and gel breaking and hydration are avoided.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Egg hatching tray

The invention relates to an egg hatching tray, which belongs to the technical field of the livestock raising. The hatching tray of the invention is provided with a plurality of egg position holes. The egg position holes are arrayed in an interlacing mode. Vent holes are arranged between every two adjacent rows of the egg position holes. Lugs are uniformly arranged in the egg position holes along the peripheries of the egg position holes. As the egg position holes of the egg hatching tray are arrayed in an interlacing mode and the vent holes are formed between every two adjacent rows of the egg position holes, the ventilation is good and the temperature and the humidity are more uniform. The insides of the egg position holes are provided with bulges and each egg position hole and the corresponding egg are in point contact, thus, when the hatching eggs are arranged firmly, the gaps among the gaps are enlarged, the ventilation rate among the hatching eggs is increased, the heat in the hatching house can be sufficiently diffused, the temperature and the humidity among the hatching eggs are more uniform, the temperature difference is not over 0.1 percent, the egg hatching time is concentrated, the phenomenons of dehydration and bad absorption do not occur to the chicks, the hatching rate and the health chick rate are obviously improved and the survival rate is improved from about 90 percent originally to about 98 percent.
Owner:于文天

Crop cooling and moisturizing device of agricultural planting greenhouse

The invention discloses a crop cooling and moisturizing device for an agricultural planting greenhouse. The device comprises multiple frameworks fixedly connected to the ground, the multiple frameworks are arranged at equal intervals, and a transparent film is fixedly connected to the side walls, far away from the ground, of the multiple frameworks together. Multiple light processing devices arranged at equal intervals are arranged on the side walls, close to the ground, of the multiple frameworks together, each of the multiple light processing devices comprises two working columns fixedly connected to the multiple frameworks, the two working columns of each light processing device are symmetrically arranged, working cavities are formed in the two working columns of each light processing device, and a rotating rod is rotationally connected between the two opposite inner walls of the two working cavities of each light processing device. In the device, the situation that crops are hurt by excessive illumination can be effectively avoided by users, water can be supplemented to crops when the illumination is too strong, the water loss condition of crops is avoided, and it is greatly guaranteed that agricultural production work is smoothly carried out.
Owner:北京麦麦趣耕科技有限公司

Novel water-soluble phenolic resin and preparation method thereof

The invention provides novel water-soluble phenolic resin, which is prepared through using 100 weight parts of phenol and 105 to 115 weight parts of formaldehyde as raw materials to carry out condensation reaction under the effect of 0.1 to 0.2 weight part of basic catalysts. The content of solid materials obtained after drying the water-soluble phenolic resin accounts for 50 to 55 percent of the weight of the original phenolic resin. The invention also provides a production method of the novel water-soluble phenolic resin. The invention uses common phenol and formaldehyde as raw materials to carry out the condensation reaction under certain production process conditions for preparing the water-soluble phenolic resin. The resin has good soaking performance, can be mixed with water, has the watery features, and also has good adhesive performance, and in addition, the production cost is low. The water-soluble phenolic resin has high stability, and can not generate the dehydration phenomenon after being stored for 500 hours at the normal temperature. The production process in the invention is simple, producers can conveniently realize the large-scale production, and the invention has good production prospects and market application prospects.
Owner:浙江科马摩擦材料股份有限公司
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