48results about How to "Eliminate churn" patented technology

The invention provides a comprehensive utilization method for planting edible fungi and producing artificial grass peat by using waste cabo generated in a tobacco threshing redrying plant as main raw materials. Raw materials forming culture materials are as follows: 60-100 parts of cabo and 1-5 parts of lime or/and plaster; and 1-40 parts of accessories also can be added. A bag cultivation methodis perfectly selected for a planting process, comprising the steps of dosing, bagging, sterilizing, inoculating, culturing and the like. After the harvest, waste residue of the culture materials containing the cabo is directly crushed to be in a puffy fiber, scrap, or powder state , or is crushed after being fermented and decomposed, and then is dried to obtain the artificial grass peat product. The artificial grass peat is mixed with packing materials such as perlite, roseite and the like to obtain plant culture substrate. The invention has centralized and stable raw materials so as to be beneficial to the massive production; the production cost is 1/3 lower than the common method; the planted edible fungi is large and thick, green and safe; and the artificial grass peat is prepared by the waste residue so as to realize high-efficiency comprehensive utilization of the waste cabo.

The invention provides a tobacco matrix composite biopesticide and a preparation method thereof. The composite biopesticide which comprises at least a tobacco botanical insecticidal component and at least a microbial insecticidal component is prepared through fermenting insecticidal microbes with selecting a tobacco waste as a raw material. The preparation method comprises the following operationsteps: preparation of a medium, amplification culturing of spawns, fermentation of the biopesticide, and extraction. A fermentation technology can adopt liquid state fermentation or solid state fermentation. The tobacco matrix composite biopesticide of the invention which not only contains the insecticidal microbes and metabolites thereof, but also contains tobacco insecticidal components (nicotine and the like for example) has dual insecticidal effects. The method of the invention which allows resources of the tobacco waste which is not reasonably utilized at present to be fully utilized allows grain resources to be saved, and good economic benefits, ecological benefits and social benefits to be generated.

The invention discloses a shallow pool type nuclear energy low-temperature heating reactor device and a running method thereof, relates to the technical field of nuclear energy low-temperature heatingreactors and aims to solve the technical problem that the safety and the economy of a conventional swimming pool type low-temperature heating reactor are not ideal and required to be improved. The shallow pool type nuclear energy low-temperature heating reactor device comprises an in-pool main circulating water pump and an in-pool main heat exchanger arranged in a shallow pool; the in-pool main circulating water pump is arranged at the head end of a primary circuit, an inlet of the in-pool main circulating water pump is communicated with the shallow pool, and an outlet is connected with an inlet of a reactor core; an outlet of the reactor core is connected with a primary circuit water inlet in the lower end of the in-pool main heat exchanger. The shallow pool type nuclear energy low-temperature heating reactor device and the running method thereof disclosed by the invention have the benefits that as the full immersion type in-pool main circulating water pump and the in-pool main heatexchanger are adopted, the possibility of large loss of a heat carrying agent in the reactor can be naturally eliminated; as the in-pool main circulating water pump is arranged at the head end of theprimary circuit of the reactor, the pressure in each of the reactor core and the primary circuit, the reactor core outlet temperature, the thermal safety margin of the shallow pool low-temperature heating reactor and the heat transfer capacity of each of the reactor core and the main heat exchanger can be improved under the action of pressurization of the in-pool main circulating water pump.

The present invention relates to a papermaking method. The papermaking method comprises the following steps: (a) a cation starch complex agent is added into starch-containing pulping white water or astarch aqueous solution to react, and a modified starch solution is obtained; (b) fibers or paper pulp is added into the modified starch solution and stirred, an adsorption reaction is conducted, andpulp subjected to reaction is obtained; and (c) the pulp subjected to reaction is prepared to form a paper product, wherein the chemical structure of the cation starch complex agent is composed of thefollowing parts: (i) one or more hydrophobic groups and (ii) one or more hydrophilic groups, the one or more hydrophobic groups can react with starch to produce an inclusion complex, and the hydrophilic groups and the hydrophilic groups are located at the two ends of the same molecular structure correspondingly and connected through chemical bonds to form the asymmetrical and polar structure. According to the papermaking method, the adsorption rate of the starch on the surfaces of the fibers or in the paper pulp can be increased, thus the retention rate of the starch in paper is increased, and COD emission is lowered.

The invention relates to a preparation method for a fuel cell compound proton exchange membrane enhanced by using an SiO2 three-dimensional ultra-thin membrane, comprising the following steps: polymerizing and splitting phase of the epoxy resin and the amine in the polyethylene glycol medium by a certain weight ratio at a certain temperature and obtaining the epoxy resin micro filtering membrane;performing the in situ hydrolysis to the tetraethoxysilane in the template pore channel of the epoxy resin micro filtering membrane, and forming the compound membrane of the three-dimensional SiO2 continuous phase coating epoxy resin; and removing the epoxy resin by high temperature calcination and forming the three-dimensional SiO2 ultra-thin micro pore membrane; and then casting the perfluorinated sulfonic resin solution with a certain amount on the three-dimensional SiO2 ultra-thin micro pore membrane, and heating and volatilizing the solvent; heating under the vacuum atmosphere, and obtaining the compound proton exchange membrane enhanced by using an SiO2 ultra-thin micro pore membrane after washing with de-ionized water. The compound membrane has the structure that the SiO2 and the perfluorinated sulfonic resin are in two-phase continuous interpenetrating polymer network; the SiO2 content is high; the side stability and mechanical performance in wet and dry states are good; and the invention has the characteristics of high moisture holding capability, high-temperature resistance and cell work efficiency at high temperature.

The invention relates to a method of recycling butanol through tetracycline hydrochloride crystallization mother liquor, and belongs to the technical field of pharmacy. The method comprises the following steps of: adding sulfuric acid in the tetracycline hydrochloride crystallization mother liquor at room temperature, and then, distilling the mother liquor to obtain a mixture of butanol and water, dewatering the mixture through an organic pervaporation membrane device or inorganic pervaporation membrane device to respectively obtain butanol and dialysate, utilizing the obtained butanol in the extraction process of tetracycline hydrochloride, mixing the obtained dialysate with the residual distillate of the distilling process, distilling to obtain an azeotropic mixture of butanol and water, mixing the obtained zeotropic mixture of butanol and water with the next batch of tetracycline hydrochloride crystallization mother liquor with sulfuric acid, continuing the treatment process, and treating the obtained secondary residual distillate in an environmental protection device. The method provided by the invention has the advantages of simple technique, convenience for operation, energy conservation, emission reduction, high yield and low cost.

The preparation process of Ti-Si molecular sieve catalyst includes the following steps: reacting titanium source in alcohol solution and silicon source template agent solution for 3-15 hr and adding water in 3-8 times the silicon source into the reaction product to obtain colloid solution; reacting the colloid solution through heating in non-steady state program control condition to crystallize; filtering, washing, drying and roasting to obtain white solid catalyst powder. The non-steady state program control condition increases the size of the molecular sieve, and this reduces the filtering resistance greatly, eliminates the loss of catalyst, lowers the production cost and reduces the crushing of catalyst during use.

The invention discloses a dewatering construction method for a near-lake superfine sand soil foundation pit, and belongs to the field of foundation pit dewatering. The dewatering construction method comprises the following steps that: step 1, through calculation, a hole is drilled outside a basement foundation pit superfine sand soil foundation pit slope, the diameter is equal to the diameter of a non-fine concrete pervious pipe plus 600 mm, and the depth determined through calculation must be reached; step 2, non-fine concrete pervious pipes are wrapped with single layer of corrosion-resistant dense-mesh filter cloth; step 3, the non-fine concrete pervious pipes wrapped with the single-layer corrosion-resistant dense-mesh filter cloth are sequentially installed, and the part between every two sections of non-fine concrete pervious pipes is wrapped with double-layer corrosion-resistant dense-mesh filter cloth; step 4, after installation is completed, the periphery of the non-fine concrete pervious pipes wrapped with the single-layer corrosion-resistant dense-mesh filter cloth are filled with a filter material; and step 5, a water pump is installed in each non-fine concrete pervious pipe, and the non-fine concrete pervious pipes are each connected with a drainage pipe. Loss of superfine sand soil in a dewatering process can be eliminated at a time, the dewatering effect is guaranteed, the superfine sand soil at the foundation pit slope can be dried for a long time, and then the stability of the foundation pit slope is guaranteed.

The invention relates to a method for improving the dust removing effect of a water-film dust remover. The method is characterized in that a steam vertical-spraying device is additionally arranged at an inlet pipe of the water-film dust remover. The method has the advantages that fine dust in unsaturated gas is gathered by increase of the steam pressure in dust-containing gas, and the dust is absorbed by action of washing water, so that the dust removing effect of the water-film dust remover is improved, the environment pollution is reduced and the loss of noble-metal dust is reduced.

The invention relates to a kind of parallel body-connected series centrifugal pump. It belongs to a water pump. It includes pump shell, pump supporting frame, pump shaft cover-mounted on the pump supporting frame and connected with power device and bearing cover-mounted on the pump shaft and matched with pump supporting frame. Besides, it also includes the components of water inlet, water intake section, water intake cavity, water outlet, water discharge section, water discharge cavity and blade wheel, etc. Said invention also provides the concrete structure of the above-mentioned every component and their connection method.

The invention relates to system design technology of the cyclotron, particularly to a circulating water system of a cyclotron and a water saving method of the circulating water system. A first water circulating and a secondary water circulating of the circulating water system are all in enclosed structures, and water evaporation and loss in water circulation channels is avoided. Optimization is performed on the system process including water supply and water quality improvement, and concentrated water is fully recycled (about 7tons/per day); about 1.5 tons of water is consumed in a backwashing of a pre-treatment system, a backwashing period is changed in a scientific and reasonable manner, with the conventional powered timing replaced by work timing, and unnecessary backwashing is greatly reduced. By the water saving method, 8tons water is saved per day, at the premise of high-quality quality of the circulating water, waste water drainage is reduced, and long-term, constant and low-cost running of the cyclotron is guaranteed.