40results about How to "Increase effective production time" patented technology

The invention provides a constant-temperature inducing maize-borer oophagous trichogrammae diapause storage method. The collected maize-borer oophagous trichogrammaes which have developed to the ovum telophase from the middle larva stage adopt constant-temperature inducing maize-borer oophagous trichogrammae diapause, and are stored under a specific temperature and humidity, and the development of the maize-borer oophagous trichogrammae is restored by changing the prior temperature to use. The method is applicable to oophagous trichogrammae breeding by using small gelechiid ovum; the technology matches large-scale oophagous trichogrammae production; the method is applicable to long-term production and storage of maize-borer oophagous trichogrammaes; thereby, sufficient maize-borer oophagous trichogrammaes are prepared for pest control, and the method can also be used to store breeding maize-borer oophagous trichogrammaes.

The invention discloses a release agent used for pouring lead-acid storage battery grid. The releasing agent consists of the following substances by weight ratio: 100+ / -2 parts of water, 4.2+ / -0.1 parts of cork powder, 2.4+ / -0.05 parts of sodium silicate, 0.5+ / -0.03 parts of phosphoric acid, 0.45+ / -0.02 parts of ripe rubber powder, and 0.08+ / 0.02 parts of fumed silica. The preparation method of the releasing agent used for pouring the lead-acid storage battery grid comprises the following steps of: (1) adding deionized water with a formula amount, the sodium silicate and the ripe rubber powder into an aluminum drum for heating to the temperature of 80+ / -2 DEG C; (2) slowly adding the cork powder with a formula amount and the fumed silica into the obtained solution and stirring continuously until the cork powder and the fumed silica disperse uniformly in the water; (3) continuing to heat with low flame to keep boiling for thirty minutes; (4) stopping heating, and afterwards adding the phosphoric acid with a formula amount and stirring sufficiently for two to three minutes. The releasing agent is mainly used for demolding of the lead-acid storage battery grid in the casting process, and belongs to the technical field of storage batteries.

The invention relates to a method for preparing a vulcanization type gasoline hydrogenation upgrading catalyst. Gasoline hydrogenation catalysts are treated by vulcanizing agents with multiple sulfur ions and organic nitride which is used as a passivator at the low temperatures, active components in the gasoline hydrogenation catalysts comprise a type or a plurality of types of Mo and W of VI B groups and Co and Ni of VIII B groups, and stabilizers comprise a type or a plurality of types of Zn and Cd of II B groups, Na and K of I A groups and rare earth metal La and Ce. The method has the advantages that cascade full vulcanization can be carried out on metal oxide or precursors of the metal oxide, and strong acidic sites in ZSM-5 molecular sieve composite carriers can be selectively passivated; the vulcanization type gasoline hydrogenation upgrading catalyst prepared by the aid of the method is short in on-stream time, high in hydrogenation and olefin reduction upgrading activity, selectivity, carbon deposition resistance and liquid yield and low in octane number loss, and accordingly the method and the vulcanization type gasoline hydrogenation upgrading catalyst are particularly applicable to producing clean gasoline components from inferiorly catalytically cracked gasoline by means of hydrogenation and olefin reduction upgrading at a low cost.

The invention relates to a method for preparing a water purifying agent for wastewater treatment, which is characterized in that the water purifying agent for wastewater treatment is prepared by combining two parts: the preparation of type A water purifying agent and the preparation of type B water purifying agent; wherein the type A water purifying agent The preparation method of the water agent is as follows: oxidize the ferrous aluminum salt with a strong oxidant, hydrolyze and polymerize it to generate polyferric iron with a certain degree of alkalization, add phosphate on this basis, and react to form a liquid polymer. Concentrate and dry to obtain off-white solid product. The preparation method of Type B water purifier is as follows: firstly, the polyamine compound and the cyclic ether undergo hydrogen displacement polymerization to generate an intermediate product substituted amine; this product is used as a prepolymer to further react with a chain extender of a multifunctional group, and the molecular weight With the increase of the reaction time, it gradually increases, the medium viscosity increases rapidly, and finally the product is obtained. In the application process, add type A first, then add type B, and then separate. The use of the above-mentioned water purifying agent can realize full recycling and realize zero discharge.

The invention discloses a method for industrialized production of sulfur-coated controlled-release fertilizer and a device thereof. The method comprises the following steps: after being elevated to a sieving machine to be sieved through a bucket elevator and conveyed into a raw material bin through a raw material belt conveyor, granular fertilizer is metered through a dosing scale and enters a rotary drum; liquid sulfur in a liquid sulfur storage tank enters an underground liquid sulfur tank, and enters the rotary drum after being pressurized through a liquid sulfur pump and metered through a liquid sulfur flow meter; sealant is added into a sealant dissolving tank to be heated and dissolved, is discharged into a sealant storage tank, and then enters the rotary drum after being metered through a sealant metering pump; in the rotary drum, the granular fertilizer is preheated in a preheating area, then the coating is gradually formed on the surface of the liquid sulfur atomized fertilizer granules in a sulfur coating area, and finally the sealant is coated in a sealant coating area; the sulfur-coated controlled-release fertilizer going out of the rotary drum is conveyed into an end product bin via an end product belt conveyor, and then packaged and warehoused. The invention has the advantages that the investment on technological equipment is low, continuous operation is realized in the whole technological production process, the operation is simpler and more convenient, and the sulfur can be coated more uniformly.

The invention provides a granulator comprising double tubular reactors. A main beam is arranged on the upper part of the granulator. A No.1 tubular reactor and a No.2 tubular reactor are respectively arranged on the two opposite sides of the granulator. According to the No.1 tubular reactor, an ammonia distributor is inserted into a granulator feed layer through a plow-type steel part welded on the main beam. A liquid ammonia delivery pipe is arranged on the end of the No.1 tubular reactor positioned on the outer side of the granulator. According to the No.2 tubular reactor, an ammonia distributor is inserted into a granulator feed layer through a plow-type steel part welded on the main beam. A liquid ammonia delivery pipe is arranged on the end of the No.2 tubular reactor positioned on the outer side of the granulator. A washing liquid circulation tank is respectively connected to the upper parts of the No.1 tubular reactor and the No.2 tubular reactor through tubular reactor feeding pumps. The working pressure of the equipment is lower than that of single tubular reactors. A blocking frequency is substantially reduced. Single tubular reactor purging frequency is reduced to once per shift. A cylinder scale phenomenon close to a spray point is inhibited.

The present invention provides a kind of open type calcium type brine preheating system process, comprising a primary preheating device, a secondary preheating device and a settler, the primary preheating device and the secondary preheating device both include a heat exchanger ( Tube-and-tube heat exchanger) and a material storage room, the bottom of the heat exchanger is connected to the lower section of the upper draft tube through the flange, and one end of the lower section of the upper draft tube is connected to the horizontal section of the lower draft tube. One end of the horizontal section of the lower draft pipe is connected with a bottom material propeller through flange connection (the bottom material propeller is suspended from the ground, as a free end that expands with heat and contracts with cold), and the other end of the horizontal section of the lower draft tube is fixed A lower guide pipe is connected, one side of the bottom of the lower guide pipe is provided with a feed nozzle and a return nozzle, the top of the lower guide pipe is fixedly connected with the storage room, and the storage room The top is fixedly connected with the horizontal section of the upper diversion pipe. The open calcium-type brine preheating system has a reasonable process design, can work continuously, and can effectively improve the effective production time.