59results about How to "Feeding is simple" patented technology

The invention discloses preparation methods of Atazanavir and a sulfate of the Atazanavir. The preparation method of the Atazanavir comprises the following steps: 1) adding (a) and (b) into an alcohol solvent and reacting so as to obtain an intermediate shown in a formula (I); 2) dissolving the intermediate shown in the formula (I) in an fatty alcohol solvent, cooling, dropwise adding an alcoholic solution of hydrogen chloride and reacting so as to obtain an intermediate shown in a formula (II); 3) dissolving (c) in dichloromethane, cooling, reacting by adding a dehydrating agent, adding an organic alkali and the intermediate shown in the formula (II) and reacting so as to obtain an Atazanavir monomer shown in a formula (III). The Atazanavir monomer can be prepared into an Atazanavir sulfate shown in a formula (IV) according to a conventional method. The Atazanavir monomer has the advantages of high yield, less relevant impurity content, low preparation cost and the like, and can be used for preparing the Atazanavir sulfate with high purity and high yield. The structures of the Atazanavir monomer and the Atazanavir sulfate are as shown in the specification.

The invention discloses a compound feed for megalobrama amblycephala. The compound feed comprises the following raw materials by weight percent: 18-20% of flour, 9-26% of soybean meal, 6-15% of cottonseed meal, 10-28% of rapeseed meal, 2 -4% of corn gluten meal, 2-8% of fish meal, 2-6% of shrimp meal, 2-7% of prickly ash seed, 5-15% of rice bran, 2-3% of soybean oil, 1-3% of bentonite, 1.5-2% of calcium dihydrogenphosphate, 0.05-0.2% of mildew preventive, 0.05-0.3% of lysine, 0.05-0.3% of choline, 0.05-0.3% of honeysuckle powder, 0.2-0.5% of vitamin premix and 0.5-1.0% of mineral premix. The above raw materials are mixed, are subjected to the concoction, extrusion expansion granulation, drying and other steps, and then are cooled to the room temperature so as to obtain the compound feed. According to the compound feed, a plurality of protein raw materials and amino acids are selected to realize the nutritional coordination, the expansion process is used for increasing the curing degree of the feed, eliminating anti-nutritional factors, and greatly improving the feed utilization efficiency and water resistance; the honeysuckle powder is added to improve the immunity of megalobrama amblycephala and effectively reduce the mortality.

The invention discloses a preparation method of lithium hexafluorophosphate. The preparation method comprises the following steps: (1) introducing phosphorus pentafluoride gas into a reaction kettle filled with lithium fluoride and hydrogen fluoride liquid and carrying out reaction for 1 to 2 hours to obtain a lithium hexafluorophosphate solution; (2) realizing partial crystallisation under a stirring condition; (3) carrying out drying. The preparation method of lithium hexafluorophosphate disclosed by the invention has the advantages that the operation is convenient, the lithium hexafluorophosphate which is obtained by carrying out partial crystallisation is directly formed into uniform particles, so that the steps of multiple drying and pulverization are eliminated, and the partial crystallisation time is shortened.

The invention provides a solvent-free tackifying chain extender as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing an aromatic vinylmonomer, an acrylate monomer, an initiator and water; heating for polymerization, and granulating through double-screw secondary reaction to prepare the solvent-free tackifying chain extender. According to the invention, the epoxy functionalized chain extender disclosed by the invention can be applied to recycled polyester structure materials, and can be applied to repair and growth of bio-based and biodegradable plastic molecular chains with polyester structures. The invention has the advantages of no need of solvents in the process route, low investment, accessible equipment, low process route discharge, simple process control, stable composition and simple product use, and can be widely used in the fields of medical treatment, packaging, household appliances, automobiles, aviation and the like. Wide application prospects and industrial values are realized.

The invention relates to a preparation method of a block copolymer thermoplastic elastomer resin containing a hard section composed of polyamide 6 and a soft section composed of polyether by a hydrolysis ring-opening one-step process, and a polyamide 6 thermoplastic elastomer resin prepared by the method. The method has the advantages of simple technique, easy feeding, controllable reaction, low raw material cost and high production efficiency. The obtained polyamide 6 elastomer resin has the advantages of higher molecular weight, favorable elasticity, high transparency, adjustable Shore hardness, high wear resistance, favorable silencing effect and small damping decrement.

The invention relates to a full-intelligent executing manipulator for an integrated fish pond feeding machine. The full-intelligent executing manipulator comprises a three-freedom-degree parallel mechanism and a feeding device, wherein the three-freedom-degree parallel mechanism is located under the feeding device, and the upper end of the three-freedom-degree parallel mechanism is connected withthe feeding device. The full-intelligent executing manipulator for the integrated fish pond feeding machine has the advantages that the full-intelligent executing manipulator has functions of azimuthangle adjusting and loading and feeding, the function of automatic feeding of fishery aquaculture can be achieved, the integration degree is high, the adjustment of the azimuth angle is convenient andflexible, the feeding speed is quick, the feeding distance is distant, and the problems that existing artificial by-ship feeding is large in workload, large in dangerousness and low in efficiency aresolved.

The invention belongs to the technical field of fuel consumption measurement of a spent fuel element in nuclear fuel circulation and discloses an automatic radiochemical separation system used for measuring fuel consumption of a spent fuel element. The system is composed of a dissolving unit, a material blending unit, a separation unit and a control system, wherein the dissolving unit, the material blending unit and the separation unit are connected with one another by a material liquid conveying pipe; the dissolving unit comprises a dissolving device; the dissolving device is of a double-layered three-neck round bottle structure; the separation unit mainly comprises a Mo separation column, a Nd separation column, a Pu separation column, a U separation column and Cs detection units; and the material blending unit comprises a concentration diluting device for diluting concentration, an isotope diluting device for diluting isotopes, a Pu material blending tank, a U material blending tank, a Nd material blending tank, a solenoid valve and a peristaltic pump for supplying power to material liquid. The system has the characteristics that monitoring body nuclides can be separated simultaneously, the separation time is short, the separation system is simple and the automatic separation can be realized.

A tea kneading machine, comprising: a frame, a kneading plate, a kneading bucket, a kneading bucket cover and a pressurizing part; For the moving kneading plate drive part, the kneading barrel is set statically and always above the kneading plate; the pressurizing part is set on the frame, and the kneading barrel cover is set at the lower end of the pressing part; the pressurizing part is used for motion output and controls the kneading barrel cover on the It moves vertically, and the movement track of the kneading bucket cover stretches into the kneading bucket. In the present invention, the separation of horizontal movement and vertical movement is achieved through the rotation of the kneading plate, so that the kneading bucket is set statically, avoiding the movement positioning of the kneading bucket, and avoiding various electronic components such as sensors and controls caused by the kneading bucket movement. Risk of bad wiring of the device. At the same time, it also makes the feeding of the kneading barrel simpler and more efficient, which is conducive to improving the tea rolling efficiency.

The invention discloses a preparation method for carfilzomib. The method utilizes HATU as a condensing agent to perform condensation and comprises a plurality of steps. The method has the characteristics of short reaction time, simple feeding, no need for nitrogen protection, appropriate control the feeding temperature, no need for strict temperature control, and easier washing and removal of the by-product of HATU, greatly shortens the preparation time, and improves the work efficiency, thus being suitable for industrial production.

The invention relates to a feeding device, in particular to a feeding device for a spray type refractory material spray coating machine. The feeding device comprises an air supply mechanism used for providing high-pressure air, and the air supply mechanism is connected with a material supply mechanism used for supplying materials. The air supply mechanism comprises an air blower used for generating high-pressure air, and the air blower is connected with a blast pipe used for conveying out the high-pressure air. The material supply mechanism comprises a hopper used for containing materials, the bottom of the hopper is connected with a material supply shell used for providing a spraying environment, one end of the material supply shell is connected with an air inlet pipe used for introducing the high-pressure air, and the other end of the material supply shell is connected with a material supply connecting pipe used for outputting materials. The feeding device for the spray type refractory material spray coating machine mainly solves the problem that due to the fact that the size difference of refractory materials sprayed by an existing spray coating machine is too large, the spray coating speed and the spray coating effect of the spray coating machine are affected.

The invention relates to a lake sewage purification treatment intelligent robot which comprises a land traveling device, water surface traveling devices, a lifting device, a hybrid mechanism and a feeding device. The water surface traveling devices are located on the left side and the right side of the land traveling device correspondingly. The water surface traveling devices are connected with the land traveling device. The lifting device is located over the land traveling device. The lower end of the lifting device is connected with the upper end of the land traveling device. The hybrid mechanism is located between the lifting device and the feeding device, and the lower end of the hybrid mechanism is connected with the lifting device. The upper end of the hybrid mechanism is connected with the feeding device. The lake sewage purification treatment intelligent robot has the land traveling function, the water surface traveling function, the azimuth angle adjusting function and the charging and discharging function. In the sewage purification treatment process, the sewage purification function and the automatic feeding function can be achieved, the intelligence degree is high, the azimuth angle adjusting is convenient and flexible, the feeding speed is high, the feeding distance is large, the problems that in the current manual feeding process by ships, the workload is large, the risk is high, and the efficiency is low are solved, and water resources are effectively protected.

The invention discloses a fishery water surface floating feeding device which comprises a floating cylinder, wherein the upper end of the floating cylinder is sleeved by a driving motor; the driving motor is connected with a vertically arranged rotating shaft; the upper end of the rotating shaft is sleeved by a feeding hopper; the feeding hopper is of a columnar hollow structure; the feeding hopper is provided with a plurality of feeding tubes; a discharge tube is arranged above the feeding hopper; the upper end of the discharge tube is sleeved by a containing cylinder; a plurality of reinforcing support rods are arranged between the containing cylinder and a floating cylinder. Due to adoption of the floating cylinder which can float on a water surface, the device is capable of achieving moveable feeding, is large and uniform in feeding area, high in feed utilization rate, in addition simple in structure, low in manufacturing cost and easy to achieve, the anoxic phenomenon caused by partial dense feeding can be avoided, feed inside the containing cylinder can be thrown smoothly from the feeding hopper under the action of centrifugal force generated when the motor is rotated, waterpollution caused by crushed feed can be avoided, and the economic benefits of aquaculture can be increased.

The invention discloses a preparation method of a resorcinol formaldehyde resin for an alkylphenol modified rubber adhesive, which comprises the following steps: a) adding alkylphenol and polyformaldehyde into an organic solvent, and stirring uniformly at 40-70 DEG C; b) dropwisely adding an alkali solution, and keeping the temperature for 1-4 hours; c) heating the product obtained in the step b) to 80-100 DEG C, keeping the temperature for 2-4 hours, and cooling to 90 DEG C below; d) adding oxalic acid into the product obtained in the step c), stirring, adding resorcinol, heating to 100-150 DEG C, and reacting under reflux for 2-5 hours; and e) removing the organic solvent from the product obtained in the step b), and starting granulation when the softening point of the product is 99-109 DEG C to obtain the granular resorcinol formaldehyde resin. The method uses polyformaldehyde instead of the formalin, and has the advantages of simple material feeding and lower risk.