39results about How to "Reasonable source" patented technology

The invention relates to a preparation method of a nanoscale carbon-loaded metallic copper catalyst. The nanoscale carbon-loaded metallic copper catalyst is prepared by the steps of: based on potato starch and copper nitrate as raw materials, preparing solution by a sol-gel process, carrying out ultrasonic dispersion and microwave heating decomposition, grinding and screening. The obtained catalyst can be used for synthesizing methyl-carbonate by oxidation and carbonylation of methanol. In the catalyst, metallic copper is uniformly dispersed and mixed with raw material gas to realize rapid reaction; and the catalyst has good stability and anti-caking property. The preparation method is short in process flow, easy to operate, rich in material sources, reasonable in matching, and full and accurate in data, and is a fully ideal preparation method of the catalyst for synthesizing methyl-carbonate by oxidation and carbonylation of methanol.

The invention discloses a complete compound pig feed, and a preparation method and application thereof. The complete compound pig feed comprises a main material and an auxiliary material. The main material is characterized by comprising the following components in parts by weight: 580-600 parts of corn, 45-55 parts of wheat middling, 8-12 parts of fish meal, 280-300 parts of bean pulp, 18-22 parts of wheat DDGS, 12-15 parts of calcium hydrogen phosphate, 8-10 parts of calcium carbonate, 2.5-3.5 parts of table salt, 1.2-1.6 parts of zinc oxide and 2.2-2.8 parts of lysine. The auxiliary material comprises the following components in parts by weight: 0.45-0.55 part of sodium bicarbonate, 0.8-1.2 parts of acidifier, 0.18-0.22 part of aspartame, 0.6-1.0 part of milk essence, 0.45-0.55 part of mold preventive, 0.18-0.22 part of antioxidant, 0.04-0.06 part of lemon yellow, 1.0-1.5 parts of 50% choline chloride, 0.22-0.28 part of multivitamin for pigs and 4.5-5.5 parts of premix reagent for anthony pigs. The pig feed can effectively enhance the daily gain of growing-finishing pigs, enables the pigs to grow faster and advances the slaughtering time; and the pig feed has the advantages of low feed consumption and low feeding coefficient, and can greatly enhance the culture benefit of the hoggery.

The invention discloses a concentrated pig feed, a preparation method and an application. The concentrated pig feed comprises a main material and an auxiliary material, and is characterized by comprising the following ingredients in parts by weight: the main material: 45-55 parts of fish meal, 420-480 parts of soya bean meal, 160-200 parts of cottonseed meal, 150-180 parts of peanut meal, 15-20 parts of fish oil, 40-45 parts of calcium hydrophosphate, 40-45 parts of calcium carbonate, 15-20 parts of table salt, 3-5 parts of anhydrous sodium sulphate and 8-12 parts of lysine, as well as the auxiliary material: 0.45-0.55 parts of sweetener, 0.55-0.65 parts of antioxidant, 0.8-1.2 parts of 10% bacitracin zinc, 0.8-1.2 parts of pig multi-vitamin, and 18-22 parts of premix drug, wherein crude protein values (CP%) of the fish meal, the soya bean meal, the cottonseed meal and the peanut meal in the main material are required to be 60-65, 42-46, 40-42 and 50-55; and mineral substance requirements are as follows: the Ca content and P content of calcium hydrophosphate to be 21% and 16%, and the Ca content of calcium carbonate to be 38%. The feed can effectively increase the daily gain of a growing-finishing pig, allows the pig to grow faster and pass in and out of a fence in advance, is low in consumption and feeding coefficient, and can greatly improve the culture benefit of a pig farm.

The invention discloses a full-price compound pig feed and its preparation method and application. It includes main ingredients and auxiliary materials, and is characterized in that it consists of the following components in parts by weight: main ingredients: 350-450 parts of corn, 100-120 parts of secondary powder parts, bran 140-160 parts, cotton meal 55-65 parts, wheat DDGS? 35-45 parts, 20-25 parts of zeolite powder, 10-12 parts of calcium carbonate, 20-25 parts of zeolite powder, 3.8-4.5 parts of table salt, 0.8-1.2 parts of lysine, 180-220 parts of rice bran meal; of which: the main The crude protein value (CP%) requirements in the material are as follows: corn 7-10, secondary flour 12-15, bran 4.5-5.5, cotton meal 40-42, wheat DDGS? 36-40; another calcium carbonate Ca content 38%; excipients: 1.8-2.2 parts of premixed medicine. It can effectively increase the daily gain of growing and finishing pigs, allowing the pigs to grow faster and enter and exit the slaughterhouse in advance; the feed consumption is low, and the feeding coefficient is low, which can greatly improve the breeding efficiency of pig farms.

The invention discloses a multi-protein full-price pig formula feed, as well as a preparation method and an application thereof. The multi-protein full-price pig formula feed comprises raw materials and auxiliary materials and is characterized by comprising the following components by weight: 560-590 parts of corn, 55-65 parts of wheat middling, 100-120 parts of bean pulp, 55-65 parts of cottonseed meal, 35-45 parts of wheat DDGS (distillers dried grains with soluble), 6-10 parts of calcium hydrophosphate, 12-15 parts of calcium carbonate, 15-20 parts of zeolite powder, 2.8-3.5 parts of salt, 1.0-1.2 parts of lysine, and 95-110 parts of rice bran meal, wherein the crude protein percentages (CP%) of the raw materials are 7-10 of corn, 12-15 of wheat middling, 42-46 of bean pulp, 40-42 of cottonseed meal, 36-40 of wheat DDGS, and 16-20 of rice bran meal according to the requirements; the auxiliary materials are 1.8-2.2 parts of baking soda, 0.1-0.3 part of monosodium glutamate, 0.45-0.55 part of milk essence, 0.45-0.55 part of mildew preventive, 0.18-0.22 part of an antioxidant, 0.5-1.0 part of 10% bacitracin zinc, 0.4-0.6 part of 50% choline chloride, and 0.15-0.25 part of pig multi-vitamin. The daily gain of a growing-finishing pig is effectively increased, the pig grows faster and is slaughtered in advance, the feed consumption is low, the feeding coefficient is low, and the culture benefit of a pig farm is greatly increased.

The invention discloses an organic high molecular composite flocculant which is mainly used for municipally or industrially dewatering sludge and a preparation method thereof, which solve the problems of complex treatment process, agent waste, secondary pollution and the like existing in the prior art. The flocculant comprises polyacrylamide, polydimethyldiallylammonium chloride and modified starch serving as raw materials and the dry weight ratio of polyacrylamide to polydimethyldiallylammonium chloride to modified starch is 4-9:0.5-5:0.5-5, wherein tap water or de-ionized water is used as adispersing agent; and the liquid organic high molecular composite flocculant, of which the molecular weight is 4,000,000 to 12,000,000, the ionization degree is 40 to 80 percent and the effective content of the raw material is 1 to 5 percent based on dry weight, is prepared by dispersing the materials in a reactor at the temperature of between 10 and 50 DEG C with stirring and compounding for 0.5to 3 hours. The flocculant has the advantages of sufficient raw material sources, low cost, simple process flow, stable performance and high suspension separation speed, is reasonably prepared and quickly dissolved and is safe to operate, and convenient to use, saves the amount, obviously improves the dehydration efficiency, expands the application range, prevents fluctuation of treatment effect and reduces secondary pollution.

The invention discloses a continuous rigid frame bridge based on a steel truss-concrete slab composite beam. The continuous rigid frame bridge comprises a bridge substructure and the steel truss-concrete slab composite beam supported by the bridge substructure. The steel truss-concrete slab composite beam comprises a steel truss and a concrete bridge deck which is laid over the steel truss. The steel truss comprises one or more steel truss units; each steel truss unit is an inverted-triangle truss girder, wherein the inverted-triangle truss girder is composed of two upper chords, a lower chord, a left line of diagonal web members and a right line of diagonal web members, each upper chord comprises a first horizontal steel plate and a plurality of first vertical perforated steel plates evenly laid on the first horizontal steel plate, an upper chord transverse connecting system connected between the two upper chords comprises a plurality of upper chord transverse connecting pieces, and each upper chord transverse connecting piece comprises a second horizontal steel plate and a plurality of second vertical perforated steel plates evenly laid on the second horizontal steel plate. The continuous rigid frame bridge is simple in structure, reasonable in design, convenient to construct, good in stress performance, good in using effect and capable of effectively solving various problems existing in an existing continuous rigid frame bridge.