97results about How to "Cohesion effect is good" patented technology

The invention discloses a method for transforming fatty acid ethyl ester into glyceride, which comprises the following steps of: mixing the fatty acid ethyl ester and glycerol in a material tank; making the material pass through a glycerol separator by using a pump to separate free glycerin; then putting the material in a reactor in which immobilized lipase is filled; and making the material passthrough a packed tower to remove ethanol; making the material finally flow back to the material tank for performing 6 to 300h circular reaction; then carrying out molecular distillation on the reaction product to remove the unconverted reactant so as to obtain glyceride products. The method can improve the stability and bioavailability of the products, and has high application value for transforming functional fatty acids such as ethyl ester fish oil, algae oil, conjugated linoleic acid, arachidonic acid and the like into glyceride products.

The invention discloses a soil curing agent, which belongs to the technical field of building materials. The soil curing agent comprises the following raw materials: common silicate cement, solid sulphur ash, an excitant, an early strength agent, silica fume, quick lime, polyacrylamide, water, polyvinyl butyral, calcium lignosulphonate, 3-amino propyl trialkoxysilane and polyvinylpyrrolidone. Theabove soil curing agent is prepared through the steps of carrying out material modification, mixing, vacuum preparation and the like. The soil curing agent has a simple preparation technology. When the soil curing agent is adopted, the solidification time of a roadbed can be obviously shortened, the compressive strength of the roadbed is improved, time limit for construction are shortened, and thesoil curing agent can be applied to the soil solidification of different soil textures.

The invention provides a coal washing water treatment agent. The coal washing water treatment agent comprises the following main components in part by mass: 1 to 5 parts of polyacrylamide, 5 to 15 parts of magnesium chloride, 1 to 10 parts of calcium chloride and 1 to 5 parts of sodium sulfate. The coal washing water treatment agent can be efficiently used for treating coal washing water.

The invention discloses a preparation method for an environmentally-friendly alkali-free liquid accelerator. The preparation method is characterized in that acrylamide and unsaturated acid are subjected to copolymerization to prepare suspension stabilizer, then, the suspension stabilizer is used for preparing the synthesis of the alkali-free liquid accelerator, macromolecule copolymer is introduced to optimize the accelerator, the coherence of the liquid accelerator is improved, sediments can be effectively inhibited, mother liquor storage stability is greatly improved, and stability performance can be improved by one year or more. The environmentally-friendly alkali-free liquid accelerator prepared with the preparation method does not corrode the skin of a construction worker, the production environment is not polluted, and the environmentally-friendly alkali-free liquid accelerator belongs to an environmentally-friendly pollution-free product.

The invention discloses a highly-durable alkali-free liquid quick-setting agent preparation method. According to the preparation method, a suspension stabilizer is prepared by copolymerizing acrylamide and an unsaturated acid, an alkali-free liquid quick-setting agent is synthesized by using the suspension stabilizer, and a polymer copolymer is introduced to optimize the quick-setting agent so asto improve the agglomeration property of the liquid setting agent, effectively inhibit the generation of the precipitate, substantially improve the mother liquor storage stability, and achieve the stability of more than one year; and the prepared highly-durable alkali-free liquid quick-setting agent does not contain sulfates, chlorine ions and alkalis so as to improve the durability of concrete.

The invention relates to the technical field of sewage advanced treatment, and provides an air floating device having an oil-water separation function. The device comprises an inner cylinder body and an outer cylinder body which are arranged coaxially, and the inner cylinder body and the outer cylinder body constitute an air floating reaction zone; and the device further comprises an ozone oxidation zone, raw water and ozone are introduced into the ozone oxidation zone, the upper end opening of the ozone oxidation zone is provided with an oil collecting groove, and the oil collecting groove communicates with an oil discharging pipe; and dissolved ozone water is introduced into the lower end opening of the inner cylinder body, and the ozone oxidation zone communicates with the lower end opening of the inner cylinder body. According to the device provided by the invention, the ozone oxidation zone is arranged, ozone is utilized for oil-water separation, and ozone can also be utilized to improve cohesive properties of organic matter, so that wastewater after oil-water separation is conveniently subjected to a coagulation sedimentation reaction before being introduced into the inner cylinder body, and the sewage treatment effect is enhanced.

The invention discloses a preparation method of a durability-enhanced alkali-free liquid accelerator. According to the preparation method, maleic anhydride and urea are acylated to prepare an acylatedproduct, then the acylated product is subjected to copolymerization with acrylamide and acrylic acid to prepare a suspension stabilizer, and the suspension stabilizer is used for the preparation of the alkali-free liquid accelerator. By introducing the suspension stabilizer with an amide structure, which is prepared through the acylation of the maleic anhydride and the urea, the cohesiveness of the liquid accelerator is improved, the generation of precipitation is effectively inhibited, the stability of mother liquor storage is greatly improved, and the stability can reach 15 months or more than 15 months; and the amide structure and the urea can promote the development of early strength, so that the early strength of concrete can be improved.

The invention discloses a large-sized methane solid fermentation apparatus, comprising a fermentation area and a UASB (upflow anaerobic sludge blanket) reactor arranged on one side of the fermentation area. The UASB reactor comprises a reactor body, the top of the reactor body is provided with a reactor exhaust port and a reactor liquid outlet respectively, the bottom is provided with a reactor liquid inlet, and the inside is provided with a three-phase separator; the fermentation area includes multiple fermentation tank sets built underground, each fermentation tank set includes a plurality of fermentation tanks each covered with a light-pervious shed, the fermentation tanks are cylindrical, the center of each fermentation tank is provided with a tubular column, the upper end of this column extends out of the upper portion of the corresponding fermentation tank, the lower end of this column extends to the bottom of the corresponding fermentation tank and is also sleeved with a filter enclosure, and a beam platform formed by laying a plurality of steps between the columns and supports. Compared with the prior art, the apparatus of the invention is simple in structure and reasonable in design, is space-efficient and is higher in utilization rate of methane slurry material since the UASB reactor is provided to secondarily ferment methane slurry.

The invention belongs to the technical field of medicine, and particularly relates to a starch/poloxamer composite styptic powder and a preparation method thereof. Crosslinking, alkalification and etherification are carried out on the raw material pure natural plant starch to prepare carboxymethyl modified starch, and the carboxymethyl modified starch is compounded with poloxamer to obtain the starch/poloxamer composite styptic powder. The preparation method comprises the following steps: (1) carrying out crosslinking reaction on natural plant starch and a crosslinking agent in a sodium hydroxide solution with the pH value of 9-14; (2) sequentially carrying out reaction on the starch treated by the step (1) with sodium hydroxide and sodium monochloroacetate; and (3) stirring the starch treated by the step (2) and poloxamer in an ethanol water solution, and drying. The styptic powder can keep better cohesiveness after absorbing blood so as to enhance the styptic effect, and can be degraded and absorbed by the human body or directly cleaned with normal saline or pure water without leaving residues or injuring the wound surface. Besides, the technique has high operability and favorable market prospects.

The invention provides a high-efficiency treatment process for removing marine spill oil. The process comprises the steps that 1, sediment taken from a muddy beach at the mouth of the Yellow River is air-dried and screened to obtain particles with the particle sizes not more than 38 microns, and an appropriate number of particles and seawater are mixed to prepare a particle solution of 1.0-3.0 g/L, and the particle solution is canned and stored; 2, a waste cleaning boat is used for spraying oil dispersant and the particle solution with the appropriate concentration to the surface layer of the spill oil, and a stirring device is used for enabling a spill oil region to maintain a turbulent fluctuation state until the spill oil is cleared away; the mass ratio of the particles to the oil dispersant ranges from 7.5:1 to 12.0:1, and the use amount of the oil dispersant accounts for 15-20 percent of the amount of the spill oil. According to the process, the particles and the oil dispersant are combined to remove the marine spill oil, the oil dispersant is used for promoting dispersion of the spill oil, power is supplied through the hydrodynamic condition of the ocean, a propeller of the waste cleaning boat and the shipborne stirring device, particle materials play a role of dispersing agents and oil gelling agents, and the clearance efficiency of the spill oil is greatly improved on the basis of reducing the use amount of the oil dispersant.

The invention relates to a condenser pipe bundle. The condenser pipe bundle comprises a pine-tree-shaped main congealing area formed by arranging cooling water pipes in a crossed manner and right trapezoid air cooling areas. A vertical main channel used for gathering non-congealing gas is arranged inside the main congealing area, and the two air cooling areas are located below the main congealing area, distributed on the two sides of the vertical main channel and communicated with an extending section of the vertical main channel; and the air cooling areas and the main congealing area are separated through vapor blocking plates. Compared with the prior art, the main congealing area is distributed around the simple-shape vertical main channel used for gathering the non-congealing gas, the flow of the vertical main channel used for gathering the non-congealing gas is short, the non-congealing gas can flow into the air cooling areas after being gathered to the lower portion, and vapor locking of the main congealing area is reduced. In addition, the right trapezoid shape facilitates condensation of vapor in the air cooling areas; and the air cooling areas are symmetrically arranged on the two sides of the lower face of the main congealing area, the air cooling areas and the main congealing area are natural, the layout is compact, and the volume fraction of the pipe bundle is large.

The invention relates to the technical field of building materials, in particular to an alkali-free liquid accelerator. The accelerator comprises the following raw materials in parts: 30-50 parts of sulfate, 5-10 parts of alcohol amine, 1-5 parts of a suspending agent, 1-10 parts of a thickening agent, 1-5 parts of a pH regulator, 1-5 parts of a defoaming agent, 2-8 parts of fluosilicate, 10-20 parts of polymeric ferric sulfate salt, and 10-30 parts of alkaline silica sol. The invention aims to provide the alkali-free liquid accelerator, and the accelerator is good in compatibility with various types of concrete, wide in adaptability, capable of effectively inhibiting precipitation, good in storage stability and free of influence on the uniformity of sprayed concrete; and the accelerator has no corrosion and special smell, and has no adverse effect on constructors.

Disclosed is an ozone pre-oxidation water treatment method. The water inlet quantity of a first water inlet (6) and the amount of ozone outputted by an ozone diffuser (9) are controlled by an electric control unit (10), so that water within a range with ozone concentration of 0.8-0.9 milligram per liter and the ozone within the range are oxidized for 5 minutes, the electric control unit (10) controls stirring of a first adjustable stirrer (19) and the vibration strength of an ultrasonic vibration array (20) to perform one-minute continuous stirring and vibration according to the water inlet quantity of a second water inlet (16), a second adjustable stirrer (22), a third adjustable stirrer (23) and a fourth adjustable stirrer (24) perform stirring for 15 minutes, reactants are conveyed to a precipitating portion (4) and precipitated for 35 minutes, and the water entering a filtering portion (5) passes a filtering layer (34) and then is drained from a fifth water outlet (33).

The invention discloses a coagulant for treating spinning wastewater. The coagulant comprises aluminum sulfate, sodium aluminate, activated silicic acid and bentonite. The coagulant is used for treating the spinning printing and dyeing wastewater through the steps of firstly filtering the spinning printing and dyeing wastewater by grid, then entering a settling pond, and adding the coagulant into the spinning printing and dyeing wastewater in the settling pond for treating, so that the generated coagulated products are strong and unlikely to damage. The coagulant disclosed by the invention is good in settling performance, good in discoloring and oil-removing effects, large in applied pH value range, high in thermal stability and stable in effect.

The invention discloses a water-volume-adjustable fire monitor head device which comprises a fire monitor cylinder, a flow guiding sleeve and a telescopic knurling regulator, wherein the fire monitor cylinder comprises a fire monitor cylinder body, an 8-blade water segregator and a connecting pipe; the 8-blade water segregator is fixed at the inner middle of the fire monitor cylinder body; the connecting pipe is fixed at the inner lower part of the fire monitor cylinder body; the flow guiding sleeve is arranged on the fire monitor cylinder body in a sleeving manner; the lower part of the telescopic knurling regulator is fixedly connected onto the 8-blade water segregator; and the upper part of the telescopic knurling regulator extends or retracts up and down so as to be far away from or close to the fire monitor cylinder body. According to the water-volume-adjustable fire monitor head device, the telescopic knurling regulator is arranged, the lower part of the telescopic knurling regulator is fixedly connected onto the 8-blade water segregator, and the upper part of the telescopic knurling regulator extends or retracts up and down so as to be far away from or close to the fire monitor cylinder body, so that the water volume of a water outlet can be regulated.

The invention discloses a coagulant which is used for purifying printing and dyeing wastewater and treating the printing and dyeing wastewater and belongs to the technical field of environmental science protection. The coagulant comprises 10-40% of blast furnace slag by weight, 50-70% of carbide slag by weight and 10-20% of fly ash. According to the coagulant for purifying the printing and dyeing wastewater, the source is convenient, waste is treated with waste, the waste is changed into wealth, and the coagulant has a good coagulation effect, is quick in precipitation adsorption and has very high removal rate for various wastewater and pollution components.

The invention discloses a preparation technology of a painting mist coagulant. The technology comprises the following steps of (1) preparation of an adhesive elimination agent, and preparation includes the hydroxymethylation stage and the condensation stage, wherein at the hydroxymethylation stage, deionized water is added to a 500-mL beaker, then melamine and formaldehyde are added in sequence, the pH value is adjusted to 8-9 with triethylamine, and a stirring reaction is conducted for 30-60 min at 60-80 DEG C; at the condensation stage, the pH value of the solution is adjusted to 3-5 with 50% sulfuric acid, a stirring reaction is conducted for 1-3 h at 60-80 DEG C, and transparent liquid, namely the adhesive elimination agent is prepared; (2) preparation of the painting mist coagulant, wherein 300 mL of water is added to the 500-mL beaker, cationic polyacrylamide is added under high-speed stirring, after stirring and dissolution are conducted for certain time, a modification agent and the adhesive elimination agent are added, stirring continues for 0.5 h, and a sticky transparent solution, namely the painting mist coagulant is obtained. According to the preparation technology ofthe painting mist coagulant, through the cooperation effect of all the components, the flocculation performance and paint residue separation effect of the painting mist coagulant are obviously improved, and the aim of removing over-sprayed oil paint in oil paint wastewater is achieved.