33results about How to "Meet the needs of the domestic market" patented technology

The disclosed preparation method with hydrothermal and Barrer non-equilibrium synthesis techniques is for improved 13X molecular sieve. Wherein, the said sieve is metastable phase; when using sodium silicate and sodium aluminate as silicon source and aluminium source separately, the silicate radical has different polymerization states, the aluminate radical and aluminosilicate radical have different structures and states; in alkaline condition, the silicate and aluminate polymerize and form crystallized glue and obtain the said sieve; wherein, the mole ratio of indredients is: Na2O / Al2O3: 3.0-4.0, SiO2 / Al2O3: 2.5-3.2, H2O / Al2O3: 30-40.

The invention relates to a method for producing an ultramarine, in particular to a method for producing an ultramarine by calcining gangue. The method comprises the steps as follows: materials are selected and mixed, the materials comprise gangue powder, quartz powder, soda, sulfur, anhydrous sodium sulphate, charcoal, bentonite, and are ground, filled into a boiler and a furnace, calcined, takenout from the furnace, selected, preliminarily washed, ground, filtered pressing, dried, and crushed, the product obtained is measured, packed and warehoused. The method for producing the ultramarine has the beneficial effect of 1 making full use of waste gangue and protecting environment, 2 meeting the domestic market demand and participating in the international market competition, and earning foreign exchange by export, 3 facilitating industrial restructuring and upgrading and updating of products, 4 relieving local employment pressure and promoting the development of local economy.

The invention discloses an in-line common rail fuel feed pump capable of controlling low-pressure fuel inlet amount. The in-line common rail fuel feed pump capable of controlling low-pressure fuel inlet amount comprises a pump body connected with a fuel delivery pump and a plurality of common rail unit pumps which are abreast arranged on the pump body, wherein a driving cam for driving the common rail unit pumps to work is arranged in the pump body, the axis of the driving cam is perpendicular to the axis of the plurality of common rail unit pumps, a cam position sensor for monitoring the phase of the driving cam is arranged at the side part of the pump body, the cam position sensor is connected with an ECU (Electronic Control Unit) in a signaling manner, and a lubricating oil joint, a fuel pipe joint and a fuel inlet joint are arranged on the side wall of the pump body. The in-line common rail fuel feed pump capable of controlling low-pressure fuel inlet amount has the advantages that an electronic proportional valve is not needed to control low-pressure fuel inlet amount, the low-pressure fuel inlet amount is controlled through electromagnet parts of the plurality of common rail unit pumps, the structure of the electromagnet parts is simple, the reliability and durability are high, the cost is relatively lower, the in-line common rail fuel feed pump can be produced at home and does not need to depend on import, and the domestic market demands can be satisfied.

The present invention relates to a production method of aluminium hydrogen sulfate. Said method includes the following steps: according to the molecular composition of aluminium hydrogen sulfate calculating theoretical use level of required reactant sulfuric acid and aluminium sulfate or aluminium hydroxide, using excessive sulfuric acid and aluminium sulfate or aluminium hydroxide to make synthesis reaction, then making the final reaction liquor successively undergo the processes of filtering, washing, cooling, crystallization, crystal separation and drying after-treatment so as to obtain the aluminium hydrogen sulfate product.

The invention discloses a stone slab surface profile size measurement device and a measurement method thereof, and relates to a measurement device for building stone and a measurement method thereof. The measurement device comprises hardware parts and software parts in which an image pickup system, a camera control system and a mechanical movement and supporting mechanism are arranged; and the hardware part comprises a stone slab workbench, a camera supporting post, a camera transverse movement and vertical movement guide rail and a camera transverse movement and vertical movement driving servo motor. The method comprises the following steps of: putting the stone slab on the workbench, adjusting the height and the central position of the camera, shooting the stone slab, transmitting the image into a computer and performing image processing on the image through a Visual Studio (VC) ++ software to obtain the appearance and the edge profile of the stone slab so as to compute the size of the slab. The invention realizes the online measurement of the stone slab, can facilitate the scientific management of the slab for a factory, simplify the production step, save the time, improve the utilization rate of raw materials, improve the quality, and reduce the cost.

The invention discloses a drilling process for ultra-long fine-hole steel pipes, which comprises the following steps: drilling preparation: lengthening the existing lathe bed or making the length of the bed larger than the length of the super-long fine-hole ultra-high pressure alloy steel pipe product itself More than 2 times the drilling equipment; clamp the forging blank after turning on the drilling equipment, except that the first and last ends are fixed by the drilling equipment chuck and the drilling tool holder, and then use the center along the length direction of the blank Fix the frame so that it is in a horizontal state; Formal drilling: Before the formal drilling, use the leading hole cutter head to guide the hole at one end of the blank, and use the drilling tool for trial drilling after the drilling is completed; judge the drilling tool while turning the hole direction, etc.; through this process, it is possible to open up ultra-long fine-pore steel materials with a length of more than 15,000mm, and the wall thickness is relatively uniform; the implementation of this process can completely get rid of the dependence on imports and save a lot of foreign exchange; at the same time, it can fill the domestic gap technology.

The invention discloses a device for extraction and refinement of N2O from petrochemical industrial tail gas. The device includes a chemical purification apparatus, a compression cooling apparatus, a physical purification apparatus, a gas separation apparatus and a product collection apparatus that are sequentially connected through a pipeline. The compression cooling apparatus comprises a compressor and a water cooler, the physical purification apparatus is a molecular sieve purifier, the gas separation apparatus comprises a heat exchanger, a throttle valve, a fractionating tower and an expansion machine, and the gas collection apparatus is a gas reservoir. In addition, the invention provides a method for extraction and refinement of N2O by the device. The raw material gas is subjected to chemical purification, dedusting and dewatering, compression cooling, physical purification and low temperature rectification so as to obtain the N2O product. The method and device provided by the invention have the advantages of energy saving and emission reduction, lower cost than traditional N2O preparation technology, high productivity, and greatly enhanced safety factor, unique process, and strong operability. Also, the prepared N2O product has high purity, and can meet the market demand and be exported abroad.

The sand casting method for the medium-pressure 22nd stage stationary blade of H-stage combined cycle steam turbine of the present invention comprises the following steps: (1) process design, including mold design; pouring position and pouring and riser design; cold iron system design; sprue cup design; Exhaust groove design; (2) selection and control of raw and auxiliary materials, including sand selection, coating selection and charge pretreatment; (3) pouring, including hot-type hot pouring and control of molten steel temperature and pouring temperature; (4) heat treatment, including normalizing and tempering Fire treatment; ⑸ chemical composition testing; ⑹ mechanical performance testing; ⑺ product acceptance. The invention adopts the sand casting method with low cost, short cycle and wide adaptability to replace the investment casting process, which simplifies the manufacturing process, shortens the production cycle, reduces the manufacturing cost, and reduces the pollution to the environment. The medium pressure No. 22 The quality of the stage stator vane has reached the same quality requirement as that of the investment casting process; the international competitiveness of the product has been improved.

A full-synthetic metal cutting liquid comprises the following components in percentage by weight: 18-20% of an extreme-pressure lubricant, 6-7% of an antirusting agent, 0.1-0.5% of a defoaming agent, 0.5-1% of a bactericide and the balance of deionized water, wherein the extreme-pressure lubricant comprises 5.1-5.7% of boric acid, 8.6-9.2% of diethanol amine and 4.3-5.1% of thiourea, and the antirusting agent comprises 2.1-2.3% of triethanolamine, 1.9-2% of sodium tetraborate and 1.7-1.9% of sodium gluconate. A method for preparing the metal cutting liquid comprises the following steps: (1) synthetizing organic boric acid ester; (2) synthetizing the extreme-pressure lubricant; (3) preparing the antirusting agent; (4) preparing the full-synthetic metal cutting liquid. Proven by the results, the prepared metal cutting liquid is transparent and stable, is high in extrusion resistance, wear resistance and rust resistance, can be used for processing various materials such as aluminium alloy, cast iron, carbon steel and copper, is equal to foreign similar high-grade products in performance indexes, and achieves the effects of environmental protection, energy conservation and consumption reduction.

The invention relates to a minocycline hydrochloride sustained release tablet and a preparation method thereof. In the technical scheme, the minocycline hydrochloride sustained release tablet is composed of a tablet core and a film coat, the tablet core is composed of minocycline hydrochloride, a sustained release material, a bonding agent, a filling agent and a lubricating agent, the film coat is composed of a film forming material, in the preparation method, the granule is manufactured by means of the high shear wet method and obtained through the drying of a boiling bed, the temperature ofthe material dried by a fluidized bed is controlled to be 25-35 DEG C, and the moisture content of the granule is controlled to be 2.0-4.0 percent. The invention belongs to the technical field of pharmaceutical preparation, which aims to provide an available preparation process for the minocycline hydrochloride sustained release tablet and greatly reduce the relevant materials introduced druing the preparation by controlling the key parameters in the preparation process. The preparation method of the minocycline hydrochloride sustained release tablet and the method for controlling of the relevant materials aim to develop a sustained release formulation of minocycline hydrochloride, and various specifications can be issued based on the body weight of a patient, thereby reducing the peak valley fluctuation of the blood concentration, effectively controlling the adverse drug reaction, and improving the drug bioavailability.

The invention discloses a multifunctional waveguide aerator, which comprises an air path system and an electric circuit board that are arranged in an external shell. The air path system comprises an air compressing and filtering device, an air drying device, an air conveying device and an electromagnetic valve; an electronic steering switch, a signal generator, a pressure sensor, a signal amplifier, a dual-limit comparer and a controller are arranged on the electronic circuit board, wherein the pressure sensor is used for detecting the pressure of air conveyed by the air conveying device; and the air path system also comprises an environment condition detection unit, an alarm unit and an intelligent analysis unit, wherein the intelligent analysis unit is used for carrying out comprehensive analysis on signals detected by the environment condition detection unit and the pressure sensor and adjusting pressure upper-limit and lower-limit control parameters of the controller according to the analysis result. The multifunctional waveguide aerator has the advantages of reasonable structure and design, stable working performance, safety, reliability, high intelligence degree, simpleness and convenience for operation and automatic pressure limiting function and can be used for effectively overcoming multiple defects of the traditional waveguide aerator.

The present invention relates to a method of manufacturing a circular titanium clad copper bar whose diameter is less than 20mm. The method includes eight major steps: blank preparation, pipe lining, coating, heating treatment, drawing, finishing, test and packing and delivery of finished product. A small titanium clad copper bar manufactured by the method has solid titanium clad copper layer andeven titanium clad copper section. Localization of the small titanium clad copper bar can be realized soon by making use of existing equipment, thereby supplementing first category product for Chinese standards, which not only meets the need of domestic market but also creates significant economic benefits.

The present invention relates to a production process of protease, which comprises the following steps: 1) Seed cultivation: insert Bacillus licheniformis into slant culture medium and cultivate at 30-37°C for 24-30h under aerobic conditions, and then culture Put the good slant strains into the seed culture medium, and cultivate them on a constant temperature shaker at 30-37°C for 32-37h; then put the cultured strains into the primary seed culture and cultivate them at 31-38°C for 9.5-13h; 2) Fermentation: Insert the cultured primary seeds into fermentation culture based on 32-38°C for 31-35h; 3) Extract protease: transfer the cultured fermentation broth into a recovery tank and add diatomaceous earth and perlite to it, stir Uniform, obtained after solid-liquid separation, ultrafiltration membrane ultrafiltration treatment and spray drying. The yield of the process is high, and the quality of the obtained protease is good.