279results about How to "Normal production" patented technology

The present invention relates to a process capable of simultaneously preparing acid and producing cement by combining phosphogypsum with sulfur. It is characterized by utilizing waste slag phosphogypsum obtained by wet process phosphoric acid production to prepare acid and produce cement. In the concrete, the invented process includes the following steps: utilizing low-concentration SO2 gas discharged out from rotary kiln of phosphogypsum acid-making system and making said kiln gas undergo the processes of washing, cleaning and drying, then be mixed with high-concentration SO2 gas discharged from sulfur acid-making system to obtain the SO2 gas whose concentration is 8-9%; and adopting an advanced two-stage two-absorption acid-making process to prepare sulfuric acid; at the same time firing the phosphogypsum in the rotary kiln to obtain cement clinker, grinding and blending so as to obtain cement.

The invention relates to a method for culturing microalgae by utilizing aquaculture wastewater. The method comprises the following steps: 1) domesticating microalgae: inoculating microalgae into a culture medium for culturing, adding unsterilized aquaculture wastewater in a culture process and gradually increasing the adding rate of the aquaculture wastewater according to the growing number of themicroalgae; 2) activating the microalgae: adding the unsterilized aquaculture wastewater into the culture medium and then inoculating the domesticated microalgae into culture medium for performing amplification culture; and 3) culturing the microalgae: inoculating the activated microalgae into an unsterilized aquaculture wastewater solution and culturing under an outdoor condition, thereby realizing aquaculture wastewater purification and microalgae grease production. According to the method for culturing the microalgae by utilizing the aquaculture wastewater provided by the invention, the unsterilized aquaculture wastewater is adopted for culturing the microalgae under the outdoor condition, the aquaculture wastewater purification and the microalgae grease production can be realized at the same time and the method has the advantages of low cost and suitability for large-scale production.

The invention discloses a large-scale open compound methane tank, including a fermenting tank (1), a gas collection and storage device (2), and an air feeder (3) connected with the fermenting tank, wherein, the fermenting tank includes a plurality of independent fermenting tanks which can be communicated or disconnected mutually. The methane tank also includes the gas collection and storage device, the air feeder, a solar warming device, a charging/discharging device and an anti-encrustation device of the methane tank. When in use, as the structure of the invention is provided with a plurality of independent fermenting tanks, the air can be fed continuously in the raw material renewal process; the charging/discharging device accelerates the material charging and discharging; the gas collection and storage device of the methane tank has low construction cost, a software cover can be opened or retracted according to gas production, a gas collection and storage chamber can be changed according to the methane quantity, the pressure in the gas collection and storage chamber can not be too high, and the solar warming device increases the temperature in the methane tank so as to lead the straw material to produce the methane under the suitable temperature in winter; and a circulating pump is used for spraying the methane fluid onto the straw material through a nozzle so as to avoid encrustation.

The invention discloses phosphatizing liquid. The phosphatizing liquid comprises the following components in percentage by weight: 7 percent of starter liquid, 0.38 to 0.4 percent of neutralizer, 0.2 to 0.6 percent of accelerator and the balance of water, wherein the starter liquid comprises the following components in percentage by weight: 30 to 36 percent of 85 percent phosphoric acid, 16 to 20 percent of 68 percent nitric acid, 15.6 to 18.4 percent of 99.7 percent zinc oxide, 0.4 to 0.6 percent of citric acid, 0.4 percent of sodium fluoride, 0.6 to 1 percent of nickel nitrate, 0.16 to 0.24 percent of ferric nitrate, 0.004 to 0.01 percent of copper nitrate and the balance of water.

The invention provides a production scheduling method and system for a mixing plant. According to the production scheduling method, production requests of construction sites are received, production orders are generated, and the production orders are updated in a scheduling list of the mixing plant according to planned opening time of the construction sites; a single production order is selected and analyzed, the production proportional parameters of the order are analyzed and set in a laboratory, the production proportional parameters, produced concrete type and produced concrete cubic meters are sent to a mixing plant industrial control management system, and a mixing plant production line for executing the production task is selected. In the production scheduling process in the whole mixing plant, the production orders can be received automatically without too many operators for control, coordination work with mixing plant industrial control management can be realized, the production line meeting the production task requirements is selected in the mixing plant for concrete production, good production scheduling of the mixing plant is realized, and normal and efficient production of the mixing plant is guaranteed.

An offset correcting method for thin driving belt has two approaches. One approach is used of magnetic attraction, that is, the permanent-magnet material is installed on the driving roller or the electromagnetic coil is installed in the driving roller and magnetic thin driving belt is used. Another approach is to arrange two pressing friction rollers at both ends of driving roller above the driving belt and regulating their pressure and tension can correct the offset of thin driving belt.

The invention discloses a method for producing short-day strawberry flowering seedlings in the central region of Yunnan province. The method comprises the steps of variety selecting, stock plant field planting curing, seedling breeding and short-day flowering processing. The short-day strawberry variety with the properties that the number of flowers in simple inflorescence is more than 20, the flowering time of a single flower in the same inflorescence is scattered, and the flowering time of the simple inflorescence lasts for one or more months is selected; the stock plant field planting curing, the seedling breeding and short-day flowering processing are carried out in the central region of Yunnan province with the altitude ranging from 1,600 meters to 1,900 meters; a nutrient solution including 100-150 milligrams per liter of N, 20-25 milligrams per liter of P and 80-100 milligrams per liter of K is used for watering the seedlings during the stock plant curing period, the seedlings are processed for 10 hours in the short day and processed for 30-35 days under the natural temperature condition, and flower bud differentiation is achieved in more than 90 percent of seedlings. The flowering cost is low, the flowering seedling supply time is early, 30-40 seedlings can be harvested in each stock plant in the middle ten days of June, the fresh autumn short-day strawberries can be produced, and normal winter and spring fresh strawberry production can be guaranteed.

The invention provides a flexibility and hardness combined circuit board. The flexibility and hardness combined circuit board comprises a flexible board and a hard board, wherein the flexible board which is made of pure copper comprises an upper surface and a lower surface, the upper surface of the flexible board is attached with an upper protective film, and the lower surface of the flexible board is attached with a lower protective film, and the flexible board and the hard board are bonded through hot-pressing glue. The invention further provides a method for manufacturing the flexibility and hardness combined circuit board. The pure copper of the flexible board is used for replacing a double-faced board, production procedure is reduced, device investment is saved, production cost is reduced, production efficiency and product yield are improved, the hard board is precut, and the purpose of conducting normal circuit manufacturing of the flexibility and hardness combining circuit board can be realized by the utilization of a common film drying machine.

The invention discloses a starch-based degradable garbage bag material and a preparation process thereof. The garbage bag material is characterized by comprising the following components in parts by weight: 84-93 parts of heavy calcium carbonate, 18-23 parts of corn starch, 1-1.8 parts of surface treating agent, 4-9 parts of POE (Polyolefin Elastomer), 54-63 parts of HDPE (High-Density Polyethylene) and 1-3 parts of polyisobutene. The garbage bag material has the advantages of high dispersity, original longitudinal and transverse tensile force and good popularization value.

The invention belongs to the technical field of preparation of metal powder which belongs to a metal material, in particular to a method for preparing nano-tungsten powder by using a sulfuric acid precipitation-H2 breathable reduction process, which is suitable for large-scale industrial production of nano-tungsten powder. The method is characterized by comprising: performing a precipitation reaction under the common action of a separant and a dispersing agent by using diluted solution of ammonium tungstate and diluted aqueous solution of sulfuric acid to obtain nano particular tungstic acid precipitate, performing centrifugal separation at high speed, washing repeatedly, drying under vacuum, reducing in a continuous breathable H2 reduction furnace, and finally obtaining nano tungsten powder with an average particle size of less than or equal to 35 nano meters. The method has the advantages that: the cost is low; the production efficiency is high; the equipment is simple; the process is short; the investment is small; and continuous and automatic large-scale production can be realized easily.

The invention discloses blast furnace stemming. The blast furnace stemming is characterized by comprising, by weight, 10-20 parts of gahnite, 5-15 parts of raw bauxite powder, 10-20 parts of gangue raw ores, 10-25 parts of gangue calcined clinker ores, 10-20 parts of composite clay, 10-33 parts of renewable graphite electrode powder, 8-18 parts of vanadium pentoxide, 3-8 parts of asphalt powder, 1.0-1.7 parts of Glydoln 2002, and 12-14.5 parts of extra binding agent. The novel blast furnace stemming is low in cost, capable of effectively maintaining chambering of tap holes, and is constant in using performance and operability after long-term storage.

The invention provides an automatic detection system and an automatic detection method for a volatile organic compound. The automatic detection system for the volatile organic compound comprises an automatic material handling system, a detection unit (1), a server (2) and a feedback unit (3), wherein the concentration of the volatile organic compound in the automatic material handling system can be automatically detected. The automatic detection method for the volatile organic compound comprises the following steps: setting a detection path of a detection unit (1) by virtue of a server (2), transporting the detection unit (1) through the automatic material handling system to detect the concentration of the volatile organic compound in the automatic material handling system, and simultaneously transmitting real-time detection data to the server (2); and automatically analyzing the detection data, judging an abnormal alarm value, and controlling the feedback unit (3) to send out an alarm to remind related personnel to process the abnormal condition. The manual measurement is replaced; the warehousing downtime is reduced; guarantee of normal production is facilitated; the measurement efficiency is improved; and the human cost is effectively reduced.

The invention discloses a coal mining and filling integrated method for a coal mine. The method comprises the following steps: (1) digging out an air returning and filling pipeline lane, a boundary air lane and a transportation and air intaking lane of a mining region on a working surface of the mining region; (2) mining coal with a narrow strip channel in the working surface of the mining region, in which a ventilating system is formed, after coal mining in each narrow strip channel is finished, communicating the transportation and air intaking lane of the mining region with the air returning and filling pipeline lane of the mining region through narrow strip channels; (3) transporting coal mine cementing filling material slurry into a narrow strip channel excavating region formed after the coal mining in the narrow strip channels is finished for filling; and (4) mining the coal in the narrow strip channels while filling the narrow strip channel excavating region. The mechanical cementing, filling and milling method for the coal mining, disclosed by the invention, is beneficial to sufficiently developing underground coal resources, protecting the ecological environment and ground vegetation, releasing a large number of dull coal and prolonging the service life of a mine, and has remarkable economic benefits and social benefits.

The invention relates to a weathered collophanite graded processing technique, belonging to the technical field of chemical industry mineral processing. The weathered collophanite graded processing technique is one of techniques for implementing normal production and processing of weathered collophanite and enhancing phosphorus resource utilization ratio. The technique comprises steps as follows: weathered collophanite is crushed and subjected to primary grinding, the primary grinding product is firstly graded, the product with fine particle size is activated slime, the product with crude particle size is ore slurry and is subjected to secondary grinding, the secondary grinding product is subjected to comprehensive grading processing, the processed product which is easy for floatation is ore slurry with crush particle size and enters a floatation processing system to produce high-grade phosphorus concentrate, and the processed product which is hard for floatation is ore slurry with fine particle size and is directly used as low-grade phosphorus concentrate. The firstly graded activated slime can be directly sold as a low-efficiency fertilizer, the high-grade phosphorus concentrate and the low-grade phosphorus concentrate are mixed to form the final satisfactory mixed phosphorus concentrate product, and the floatation tailings of floatation processing directly enter a tailing house to be stored. The technique is especially suitable for processing weathered collophanite around the Dian Lake in Yunnan Province, implements normal and stable production of processing enterprises of weathered collophanite resources, enhances the utilization ratio of phosphorus resources of China, and has wide industrial popularization value.

The invention discloses a process for producing polyester electric conduction filter strips. The method comprises the following steps of: purchasing raw materials, checking wires, warping, delivering heads, weaving nets, checking the nets, shaping at one time, cutting the nets, manufacturing ports, checking finished products, packaging and putting in storage. According to the process, warp and weft wires are all Germany high-quality polyester single wires, and the innovative selection and application of black imported polyester electric conduction single wires guarantee the stability and the service life of products. By adjusting the process for producing the polyester electric conduction filter strips, normal production of all processes can be realized, and fabric products are stable in texture, flat in net surface, high in intensity, long in service life and excellent in performance.

The invention discloses a surface grinding device for an efficient energy-saving pump. The surface grinding device for the efficient energy-saving pump comprises a housing; an opening is formed in the front side of the housing; a sundry outlet is formed in the bottom of the housing; a first motor is fixedly connected to the inner wall of the housing; a rotary shaft of the first motor is fixedly connected with a first connection rod through a coupler; one end, far away from the first motor, of the first connection rod is fixedly connected with a driving device; the top of the driving device is in sliding connection with the inner wall of the housing; a sliding rod is connected to the bottom of the driving device in a sleeved mode; the two ends of the sliding rod are fixedly connected with fixing rods correspondingly; and one end, far away from the sliding rod, of each fixing rod is fixedly connected with the inner wall of the housing. The surface grinding device for the efficient energy-saving pump has a single structure, is easy to operate and better facilitates usage of a user; the grinding effect is improved; later stage normal production and manufacturing of the efficient energy-saving pump are guaranteed; the working time is shortened; the economic cost expenditure is reduced; injuries to the user are prevented; and the safety problem is greatly solved.

The invention provides a bactericide for chemical flooding as well as a preparation method and application of the bactericide. The bactericide is prepared from the following components in percentage by mass: 20-25 percent of tetrakis hydroxymethyl phosphonium sulfate, 0.3-0.5 percent of dithiocyano-methane, 3-5 percent of glutaraldehyde, 0.3-0.5 percent of xanthan gum, 0.3-0.5 percent of tween 80 and the balance of water. The preparation method of the bactericide comprises the following steps: adding water to mix tetrakis hydroxymethyl phosphonium sulfate and glutaraldehyde to obtain an insecticide A; adding water to mix dithiocyano-methane, xanthan gum and tween 80 to prepare an insecticide B; adding water to mix the insecticides A and B to prepare the bactericide. The invention further provides application of the bactericide in chemical flooding oilfield sewage treatment. The bactericide has good bacterium killing effect, can be used for completely killing sulfate reducing bacteria, iron bacteria and saprophytic bacteria without reducing viscosity of polymers or influencing the ultralow interfacial tension of the chemical blooding, and is a novel efficient bactericide for chemical flooding.

The invention discloses an online loose body density measurement method and device and relates to the field of VAD (vapor axial deposition) of optical fiber preform rods. The device comprises a weight measurement module, a volume measurement module and a density calculation module, wherein the weight measurement module is fixedly arranged onto the lifting platform of VAD equipment for measuring the weight of a preform rod loose body; the volume measurement module is fixedly arranged outside a deposition cavity for scanning and calculating the volume of a preform rod loose body. The online loose body density measurement device implements measurement in a state that deposition of the preform rod loose body is completed. Therefore, the online loose body density measurement device can ensure safety of production of the preform rod loose body, timely and accurately feed density data of the preform rod loose body back, avoid rejection of a furnace tube due to the fact that low-density optical fiber preform rod loose bodies fall into the furnace tube, save offline testing operation, significantly reduce the workload and the working time of operators and effectively improve the production efficiency.

An automatic control method for the cool-constant-temperature ore discharging of a sinter ore furnace comprises the steps of crushing sinter ore discharged from a sintering machine through a crushing device, screening the crushed sinter ore through a screening device, transporting the sinter ore into a cooling furnace through a sinter ore transportation device for cooling, and discharging the sinter ore outside the cooling furnace through a discharging device. When the sinter ore is cooled and discharged, a temperature detection device detects ore discharging temperature, and by adjusting the air quantity of an induced draft fan and a blowing fan, the ore discharging temperature is adjusted and stabilized at 90-200 DEG C. According to the automatic control method for the cool-constant-temperature ore discharging of the sinter ore furnace, the ventilation quantities and the air temperature of the fans can be adjusted according to the feedforward of the air temperature and the ore temperature of an air outlet, so that the ore discharging temperature, the waste heat air temperature and the waste heat air quantity can be controlled within certain ranges, the waste heat utilization system can be guaranteed to operate normally, and the normal ore discharging can be guaranteed; and overhigh or overlow ore discharging temperature can be prevented, the stable operation can be achieved, and the sinter ore quality can be enhanced.

The invention discloses a method for using vitiligo autologous epidermal melanin transplantation cells to divide and activate water, comprising the following steps: using a skin puncher to take a small amount of scalp containing hair follicles from the patient's head, separating and culturing the melanocytes in the hair follicles in vitro; The cultivation, cryopreservation and recovery of melanocytes; the cultivation and expansion of melanocytes; the biological identification of the morphology and function of melanocytes and the stability of genetic traits. In the present invention, a large number of autologous melanocytes are obtained by obtaining melanocytes in autologous scalp hair follicles, cultured and expanded in vitro, and these melanocytes have normal skin melanocyte functions and can normally produce skin melanin. The lack of melanocytes in the skin lesions, so as to achieve the purpose of treating vitiligo. This treatment method is different from the traditional treatment method, autologous cells will not appear rejection, and it does not need to be treated with drugs, and there is no potential risk.

The invention discloses a blast-furnace iron tap channel side wall thickness detection device and a method thereof; the device comprises a base, a measuring rod, a sleeve, a push rod, a track plate and a bolt provided with a slate pencil, wherein the sleeve is connected with the base by a pin shaft; the measuring rod is inserted into the sleeve and can slide relatively to the sleeve; the push rod is connected with the measuring rod by the bolt provided with the slate pencil; the push rod is provided with a guide groove; the track plate is fixed on the base and is provided with a guide pin; and the guide pin is arranged in the guide groove. The blast-furnace iron tap channel side wall thickness detection device and the method thereof can be used for conveniently and accurately detecting the thickness of the side wall of a blast-furnace iron tap channel.