56results about How to "Save mixing time" patented technology

The formula of active positive-electrode material consists of: lead sulfate 68-75 wt%, sulfuric acid 10-15 wt5, deionized water 6-12 wt%, short fiber 0.04-0.8 wt%, inorganic conducting additive 2-4 wt% and organic additive 1-2.5 wt%. The preparation process of the active positive-electrode material includes reaction sulfuric acid and lead powder to obtain lead sulfate powder, mixing lead sulfate powder with other material to obtain mixture paste. Utilizing lead sulfate, rather than lead powder, as positive electrode material results in high porosity, high active matter utilization, plate homogeneity, no environmental pollution, simple production process and low production cost.

The invention discloses a pellet batching device and a pellet batching method. The pellet batching device comprises: a plurality of bunkers; a plurality of fixed quantity feeders which are respectively and correspondingly disposed under the bunkers so as to receive and supply a plurality of raw materials from the bunkers; a first conveyer belt which is disposed under and connected with the fixed quantity feeders so as to receive and convey a plurality of raw materials supplied by the fixed quantity feeders, wherein the fixed quantity feeders are distributed along the length direction of the first conveyer belt; and a mixer which is connected with the first conveyer belt so as to receive a plurality of raw materials conveyed by the first conveyer belt and uniformly mix the raw materials with auxiliary materials. The pellet batching device provided by the invention can be used to greatly shorten the mixing and stirring time and raise the batching efficiency.

The invention relates to a composite light building block and a preparation method thereof. The standard is 60*15*25cm, and the weight of the building block is 18kg. The building block is prepared by the following materials by weight percent and the slurry comprises brine: 50wt% of industrial magnesium chloride hexahydrate, gas generation agent: 0.01wt% of hydrogen peroxide and calcium hypochlorite; light burnt powder: 25wt% of light burnt magnesium oxide 85 powder, foam stabilizer: 0.001wt% of sodium dodecyl benzene sulfonate, filler: 20wt% of expandable pearlite sand, an adjusting agent: the balance of sodium hydroxide or citric acid. The invention can improve the processing property, increases the slurry flowability, is easy to cast in forming, has short production period and low manufacturing cost, increases the activity, enhances the impermeability and post strength, reduces dry shrinkage, and prevents cracking. The composite light building block has the advantages of light weight, high strength, small volume density, low heat conduction coefficient, heat insulation, sound insulation, fire prevention, heat isolation, freezing and melting resistance, little dry shrinkage, and the like. By using the gas-added building block to replace the traditional bearing building block as the building wall filling material, the self weight of the building structure is decreased, the foundation burden is reduced, and the energy and material are saved.

The invention discloses a cone and cone hole machining method. The method comprises the steps that a taper rod and a taper sleeve which are same in taper are made, wherein the cone matching contact area reaches 95% or above; a first marking line is drawn on the portion, with the diameter equal to a standard diameter value of the big end of a preset propeller cone hole, of the taper rod, and a second marking line is drawn on the portion, with the diameter equal to the above-mentioned standard diameter, of the taper sleeve; a propeller cone hole and a screw shaft cone are made, wherein the length of the propeller cone hole is correspondingly smaller than the cone length of the taper rod, and the length of the screw shaft cone is correspondingly smaller than the cone hole length of the taper sleeve; and when the propeller cone hole and the screw shaft cone are machined, the taper rod and the taper sleeve are adopted for replacing the corresponding screw shaft cone and propeller cone hole to check the contact area of the taper rod and the propeller cone hole and the contact area of the taper sleeve and the screw shaft cone and the cone size. The invention provides an efficient propeller cone hole machining method. The method is high in machining precision, good in cone matching contact surface, easy to operate, good in interchangeability, capable of saving labor and low in manufacturing cost.

The sealed kneading machine of the present invention is provided with a kneading chamber to which a material to be kneaded is supplied, and a rotor disposed in the kneading chamber so as to be able to rotate about a rotor shaft. The rotor is provided with a plurality of kneading blades for kneading the material to be kneaded, and the length of all the kneading blades in the rotor shaft direction of each thereof is 45% or less of the total length of the rotor in the rotor shaft direction.

The present invention relates to the technical field of biopharmaceuticals, in particular to a stirring device for biopharmaceuticals, comprising a mixing drum, a pushing plate is arranged horizontally inside the mixing drum, and a sealing ring is fixedly sleeved on the outside of the pushing plate , the sealing ring is in sliding close contact with the inner wall of the mixing drum, and the middle position of the pushing plate is vertically fixed with a drive sleeve, and the inside of the drive sleeve is inserted with a reciprocating screw rod matched with it, and the reciprocating wire The rod is vertically rotated and installed between the two ends of the mixing drum, and the top end extends to the outside of the mixing drum to connect with the output shaft of the drive motor. Position sliding rods, and the sliding sleeve of the pushing plate is arranged on the outside of a plurality of limiting sliding rods. The invention has double circulation mixing and stirring effects, effectively reduces the mixing and stirring time of various pharmaceutical liquid raw materials, and improves the mixing and stirring uniformity of various pharmaceutical liquid raw materials.