106results about How to "Good suspension effect" patented technology

The invention provides medium-temperature and high-temperature clean fracturing fluid used under high formation temperature and a preparation method thereof. The clean fracturing fluid contains Gemini cation surfactant, amphoteric surfactant, electrolyte salt, counter-ion salt, cosolvent and water. The clean fracturing fluid of the invention is used for oil and gas field fracturing and mainly comprises 2-5 percent of surfactant, 1-4 percent of amphoteric surfactant, 1-4 percent of electrolyte, 0.05-0.15 percent of counter ion and 0.1-1.5 percent of cosolvent by weight percent. Viscoelastic fluid is formed under agitation. The invention has the advantages that the viscoelasticity of the system is high, the friction resistance is low and good sand suspending performance is kept within 90-130 DEG C.

The invention relates to a preparation having the functions of promoting blood circulation, enlivening spleen and tonifying kidney, the process for preparation and quality control method, wherein the preparation is produced mainly from astragalus root, Chinese ephedra, Chinese angelica root, herba ecliptae, atractylodes rhizome, safflower, radix paeoniae rubrathe, peach kernels, achyranthes and cyathula root, Ligusticum wallichii, bitter orange and root of balloonflower. The preparation can be made into injections and various oral administration preparations including dripping pills, mini-pills and dispersible tablets. The invention also provides the method for determining and identifying contents of the preparation.

The invention relates to the technical field of animal medicine, and particularly discloses veterinary long-acting cefquinome sulfate injection and a preparation method thereof. 100 mL of the injection comprises 2.5-7.5 g of cefquinome sulfate, 0.2-0.4 g of suspending agents, 0.4 g of bacteriostatic agents, 0.3 g of emulsion dispersants, and the balance of solvents. The preparation method comprises the following steps: firstly adding cefquinome sulfate into the solvent, stirring for well mixing; adding the suspending agent into the solvent with a temperature of 90-100 DEG C for dissolution; cooling the dissolved solution in the second step to room temperature, adding the suspension under stirring in the first step, uniformly stirring; adding the bacteriostatic agent and the emulsion dispersant in to the suspension in the third step, fully stirring; finally adding residual amount of the solvent, uniformly stirring, orderly adding the mixture into a high-speed shearing dispenser and a colloid mill, performing radiation sterilization to prepare the product. When the product is used in pigs by intramuscular injection, the elimination half life is long; the effective action time of themedicine in the body is prolonged; and the drug administration time is reduced.

The invention discloses a novel polymeric visco-elastic surfactant, and a preparation method and an application thereof. The method comprises the following steps: 1, preparing an amide product intermediate A from fatty acid and dimethylaminopropylamine; 2, placing dichloroethane, diethanolamine, NaOH and ethanol in a reaction container, carrying out a reflux reaction for 20-24 h, cooling the obtained reaction product to room temperature, and removing ethanol to obtain an intermediate B; and 3, adding the amide product intermediate A and the intermediate B into the reaction container, adding ethanol, mixing the intermediates and ethanol, and carrying out a reflux reaction for 10-12 h to obtain the novel polymeric visco-elastic surfactant. The novel polymeric visco-elastic surfactant prepared through the method can be used for preparing a low-cost high temperature-resistant clean fracturing fluid to improve the high temperature resistance, the shear resistance and the suspended sand performance of the fracturing fluid.

The invention discloses an underground coal mine hydraulic sand fracturing system and method. The underground coal mine hydraulic sand fracturing system comprises a water supply system, a fluid distribution system, a sand mixing system, a fracturing system and a high-pressure manifold system; the fracturing system is formed by two fracturing pump groups in parallel; the high-pressure manifold system comprises a Y-shaped tee, and two inlet channels of the Y-shaped tee separately communicate with outlets of the two fracturing pump groups; and the fluid distribution system comprises two fluid distribution pools. The fracturing method is implemented based on the fracturing system and comprises the steps that fracturing liquid is prepared by densifiers, crosslinking agents, anti-swelling agents, gel breakers and water according to proportion; the particle size of a supporting agent is 40-70 meshes, and the volume density of ceramsite sand is 1.25g/cm<3>; and fracturing is carried out according to the sequence of first hydraulic fracturing seam generating and later fracturing liquid sand-carrying fracturing support. The underground coal mine hydraulic sand fracturing system has the beneficial effects that the fracturing system is simple in structure and reasonable in layout, and is suitable for sand-carrying fracturing use of underground narrow and small or long and narrow space; andthe fracturing liquid prepared by the fracturing method has suspended sand characteristic, can be suitable for upward drilling sand-carrying fracturing, and has the environmental protection characteristic of being capable of directly discharged.

The invention relates to an automatic forming machine with dual-slurry suction, cold-extrusion and two-segment hot pressing and for a molding product and a manufacturing method for the molding product. A slurry suction upper die and a slurry suction lower die suck slurry at the same time, so upper and lower blank layers can be finished; cold die extrusion can be accomplished by a cold press upperdie and a cold press lower die of a cold press die mechanism; the slurry suction upper die and the slurry suction lower die are combined, so the upper and lower blank layers can be overlapped and a thick blank product with doubled thickness can be formed; and then segment-hot pressure sizing work is conducted. By the use of the manufacturing method and the automatic forming machine, assembling space can be reduced and manufacturing speed can be accelerated; molding product thickness can be increased and damping space can be added, so buffering and damping effect can be enhanced; and the surface of the molding product is smooth.

The invention relates to a turnover double pulp sucking automatic molding machine for a molded product and a production method of the molded product. According to the method provided by the invention,upper and lower pulp sucking molds respectively enter a pulp box to suck a pulp at the same time to form an upper blank material layer and a lower blank material layer, cold mold extrusion is quicklycompleted through driving of a turnover mechanism, the upper and lower pulp sucking molds are closed to make the upper and lower blank material layers combined to form a thick blank product with a double thickness, and hot pressure molding is performed through hot press upper and lower molds; the machine provided by the invention has the practical effects of simplifying assembly space, accelerating the production speed, increasing the thickness and shock absorbing space of the molded product, gaining the buffering shock-absorbing effects, and making the surfaces smooth.

The invention provides clean high-temperature water-base fracturing fluid. The clean high-temperature water-base fracturing fluid comprises components including, by weight, 0.5%-6% of clay stabilizers, 2%-6% of accelerators, 0.01%-0.1% of bactericides, 0.6%-3.0% of alcohol with a low molecular weight, 0.4%-2% of zwitterionic surfactants, 0%-0.5% of polysaccharide compounds and the balance water. The components are mixed with one another to obtain the clean high-temperature water-base fracturing fluid. The clean high-temperature water-base fracturing fluid has the advantages that as proved by indoor evaluation, the temperature resistance of the clean high-temperature water-base fracturing fluid can reach 150 DEG C at least, and accordingly the clean high-temperature water-base fracturing fluid is superior to general clean fracturing fluid systems; the dosage of betaine is 0.4%-2% (a weight ratio) and is far lower than the dosage (2%-5%) of amphoteric surfactants in formulas for conventional fracturing fluid; the clean high-temperature water-base fracturing fluid is convenient to use and operate, excellent in sand suspension ability and superior to common cross-link guar gum and quaternary ammonium salt systems, and cross-link can be omitted.

The invention discloses a nano-composite initiator which comprises at least one of composite compounds as shown in a formula I in the specification. The invention further discloses a thickening agent for the fracturing fluid, and application of the thickening agent in preparation of the fracturing fluid, wherein the raw materials of the thickening agent comprise the nano-composite initiator. The thickening agent for the fracturing fluid provided by the invention has the characteristics of rapid dissolution, high temperature resistance and good sand-carrying property, can form a high-temperature fracturing fluid system which is efficient in performance and convenient to use on site, and can meet the application requirements of a large-scale hydraulic fracturing construction process.

The invention discloses a silicon steel magnesium oxide wastewater treatment method, which comprises the following steps: homogenization treatment and primary filtration are sequentially carried out on magnesium oxide wastewater generated in a silicon steel scrubbing section, wherein the primary filtration is membrane filtration, and the pore diameter of the membrane is 1-10 microns; the magnesiumoxide wastewater subjected to primary filtration, alkali liquor and a flocculant solution are mixed, and a coagulant aid solution is added to obtain a mixed solution; the mixed solution is precipitated, supernatant is taken, and secondary filtration is carried out; and the mixed solution subjected to secondary filtration is mixed with a scale inhibitor to obtain reuse water. When the method is used for treating the silicon steel magnesium oxide wastewater, suspended solids in the magnesium oxide wastewater can be removed, reuse water is sent back to the silicon steel scrubbing section to be reused, and the problems that the surface of strip steel cannot be brushed cleanly and the quality of the strip steel is influenced due to the fact that the suspended solids in the reused water block aspray pipe are solved. And meanwhile, rinsing water and rinsing water heating steam consumption of the silicon steel CT unit are greatly saved, and wastewater discharge is reduced.

The present invention relates to the field of medical tracer diagnosis reagent. The nano carbon is an ideal trancer. Said invention relates to a nano carbon suspension injection, and is characterized by that in said injection the carbon whose grain size is 80 nm is adopted, and the polyvinyl pyrrolidone (PVP-K30) suspension adjuvant is added, then the above-mentioned materials are undergone the processes of magnetic stirring, reflux and ultrasonic treatment so as to obtain the invented nano carbon suspension injection.

The invention discloses a cross-linked oil-in-water emulsified fracturing fluid, which belongs to a fracturing fluid technology and mainly solves the problem that the conventional fracturing fluid cannot meet the environmental requirements easily. The cross-linked oil-in-water emulsified fracturing fluid comprises the following components in percentage by mass: 2 percent of KCl, 0.45 percent of super guar gum, 0.6 percent of compound emulsifying agent, 0.15 percent of cleanup additive, 0.5 percent of emulsion splitter, 1 percent of clay stabilizer, 0.1 percent of modifier, 5 percent of diesel oil and the balance of water. The using effect of the fracturing fluid can be enhanced to a great extent, complete gel breaking is achieved by the fracturing fluid, and bonding capability is enhanced.

The invention discloses a suspension device for a small-sized multifunctional chassis. The suspension device is characterized in that a vertical supporting seat is vertically fixed with a frame of the small-sized multifunctional chassis; the front end of the vertical supporting seat is provided with a lifting lug and an oil cylinder; the rear end of the vertical supporting seat is provided with a reinforcing rib which is fixed with the frame; the top end of the vertical supporting seat is connected with an upper seat; the oil cylinder is provided with an oil inlet and outlet opening which is connected with an oil pipe; the upper end of the upper seat is provided with a steel wire rope in a rotating pipe supporting rope mechanism and can move with the steel wire rope; and the steel wire rope is connected with an elevating mechanism and drives the elevating mechanism to rotate around a rotating shaft. The suspension device provided by the invention is specially designed for small-sized agricultural power machines and tools, occupies small space, consumes less energy, has light weight, well solves the problem of suspension plowing of small-sized agricultural machines and tools, especially solves the problem of difficult adjustment of a penetrating angle of a suspension plowshare, and effectively realizes real-time adjustment of the penetrating angle of a plowshare, so the depth of plowing is limited; the quality of plowing is improved; the labor intensity is lightened; and the efficiency of plowing is improved.