31results about How to "Quality up to standard" patented technology

The invention discloses a processing method of raw astragalus decoction pieces and raw astragalus decoction pieces. The processing method comprises the following steps: (1) heat-treating the cleaned astragalus to obtain heat-treated astragalus; (2) sequentially moistening, slicing and drying the heat-treated astragalus to obtain raw astragalus decoction pieces. The processing method can increase the content of calycosin glucoside in the raw astragalus decoction pieces, and can maintain a relatively high content of astragaloside IV.

The invention discloses a steam-water separator. The steam-water separator comprises a porous plate and a steam-water separation cavity, wherein the steam-water separation cavity is used for receiving wet steam which penetrates through the porous plate; a corrugated plate assembly is arranged in the steam-water separation cavity; the steam-water separation cavity is inclined; the corrugated plate assembly comprises a plurality of corrugated main plates and spacing plates; the corrugated main plates are arranged in the steam-water separation cavity; the spacing plates are arranged at both ends of two adjacent corrugated main plates and are used for spacing the two adjacent corrugated main plates; a steam through groove is formed by the two adjacent corrugated main plates; a water collecting tank and a water draining tank below the water collecting tank are formed in the bottom of the steam-water separation cavity. According to the steam-water separator, the wet steam is subjected to steam-water separation through the corrugated main plates in the corrugated plate assembly; by inclining the steam-water separation cavity, more corrugated main plates can be arranged in the height-limited steam-water separation cavity, so that the channel stroke of the wet steam in the corrugated plate assembly is increased, the steam-water separation is thorough, the steam-water separation efficiency is optimized, the steam quality reaches the standard, and potential safety hazards are reduced. The steam-water separator is applied to the field of steam-water separation devices.

The invention relates to a waste lead storage battery acid type wet method process which comprises the following steps of: (1) delivering a waste lead storage battery into a crusher for separating sulfuric acid, a plastic shell and a partition plate; (2) transferring a crushed waste lead storage battery residue into a mechanical separator for processing and separating to obtain a grid and activated sludge; (3) processing the activated sludge by using a reducing agent with the concentration of 11-17 percent, transferring the activated sludge into a first autoclave for dissolving with an ammoniac solution, transferring the activated sludge into a second autoclave for converting with ammonium carbonate, settling, pressing and filtering; (4) dissolving and purifying a sediment obtained in thestep (3) by using soluble acid or alkali with the concentration of 25-35 percent in the temperature environment of 45-50 DEG C and settling and crystallizing by using a sulfuric acid solution to obtain anode paste and cathode paste; and (5) respectively coating the anode paste and the cathode paste on plates and switching on the coating plates in an H2SO4 solution with specific gravity of 1-2 to obtain an anode plate and a cathode plate of a novel lead storage battery. The invention has the advantages of simple processing flow, lower production cost and great market value.

The invention discloses a technique for preparing butyronitrile-polyvinyl chloride blended rubber by a mechanical blending method, which comprises the technological processes of formulation and preparation. The technique adopts a technical proposal which adopts the mechanical blending method and corresponding formulation and preparation process to prepare butyronitrile-polyvinyl chloride blended rubber. The technique overcomes the disadvantages of butyronitrile-polyvinyl chloride blended rubber product prepared by an emulsion blending coacervation method in the prior art including poor quality and high cost; moreover, the technique realizes the preparation of butyronitrile-polyvinyl chloride blended rubber by the mechanical method instead of the coacervation method and reaches the aims offeasible technique, up-to-standard quality, energy saving and consumption reduction and production cost reduction.

The invention provides a composite material board, a manufacturing method and a finished product thereof, belonging to the technical field of composite materials. It solves the problems of large amount of industrial waste corner plastics, mixed materials, and low recycling rate. The composite material plate is characterized in that: it is a substrate prepared from the following substances by weight percentage: industrial waste PVC, PE, PU material (60.0-69.0)%; plasticizer (3.4-7.0)%; heat stabilizer (1.0‑2.0)%; inorganic filler (26.0‑29.0)%; lubricant (0.5‑1.0)%; antioxidant (0.1‑1.0)%. The invention has the advantages of low raw material cost of waste industrial plastics, low plate production cost, large market sales, reduced environmental pollution of waste industrial plastics, and avoids secondary pollution of environment by burning waste industrial plastics.

The invention discloses a method for manufacturing a medical vacuum bag, which comprises the following steps: 1) providing TPU or nylon fabrics with the thickness of between 0.4 and 0.5 millimeter; 2)preparing a 3 to 9 percent PVA solution; 3) using the PVA solution prepared in the second step to coat the TPU or nylon fabrics provided in the first step, wherein the coating thickness is between 0.10 and 0.18 millimeter; 4) drying the TPU or nylon fabrics obtained in the third step, wherein the drying temperature is between 60 and 90 DEG C; and 5) adopting a high-frequency welding method to weld side lines of the TPU or nylon fabrics obtained in the fourth step, welding three sides, filling foamed particles into the obtained product, placing a filter sheet into the obtained product, adopting the high-frequency welding method to weld the final side of the fabrics, adopting the high-frequency welding method to weld a gas nipple on the fabrics, and inserting a quick coupling on the gas nipple. The invention has the advantages of simple process, low cost, good airtightness and quality reaching the standard.

The invention provides a method for assembling and welding a tank body. The tank body includes an upper half tank body frame and a lower half tank body. Both the upper half tank body frame frame and the lower half tank body are assembled and welded by profiles and plates, including The following steps: build a model and make drawings, the drawings include profiles, sheet blanking drawings and drawings required in the assembly process; blank the profiles and panels according to the blanking drawings; make the upper half of the tank body frame: the profile Position and weld according to the drawings to form a single-sided framework including columns and beams, fit the panels to the single-sided framework, and then carry out welding connections between profiles and panels and between panels to obtain multiple upper frames. The half-tank frame, the welding between the profile and the plate is spot-welded according to the preset order, and the welding between the plate and the plate is welded from the middle to both sides; the lower half of the tank is made; the upper half of the tank and the lower half The assembly of the tank body; leak test and repair welding; the quality of the tank produced by the invention has good consistency and high quality.

The invention relates to a calcium bromide preparation method, in particular to a method for preparing the oil field additive calcium bromide product by adopting the by-product, namely hydrobromic acid. The method mainly comprises the steps of: lime emulsifying, neutralisation, impurity disposal, settlement, filtering, vaporizing, condensing and discharging. The method has the beneficial effects that the preparation process is simple; the material is cheap and easy for obtaining, the manufacturing cost is reduced; the clarity of the prepared calcium bromide is high, the homogeneity of the solution is good, and the quality is up to the standard, thus having very good economic benefit.

The invention discloses a method for producing magnesium sulfate monohydrate by using desulfurization waste liquid, which comprises the following steps: (1) pulping step, (2) desulfurization step, (3) pulping step, (4) filtering step, ( 5) Concentration step, (6) Crystallization step, by using the method of the present invention, it is possible to realize synchronous production of high-value by-products in the flue gas desulfurization process using the magnesium oxide method. In addition, through the method of the invention, its operation is stable, and the quality of magnesium sulfate monohydrate generated after desulfurization reaches the standard.

The invention discloses a vacuum die casting method of aluminum alloy cylinders without cylinder sleeves. The method comprises process steps of smelting, heat preservation, die pretreatment, feeding, press shooting, vacuumizing and die opening. The aluminum alloy cylinders are produced in batches through the vacuum die casting method, the gas containing content of a casting can be reduced, the casting quality and performance can reach the standard, and the yield of the casting can be improved; the production efficiency is improved, and the production and manufacturing cost can be reduced.