65results about How to "Precisely control the amount added" patented technology

The invention relates to the field of numerical control machine tool cutting fluid cyclic utilization control, in particular to a numerical control machine tool cutting fluid cyclic utilization control system which comprises a machine tool equipment authentication module, a pumping module, a filtering module, a cooling module, a concentration adjusting module and a machine tool equipment scrapping module. The concentration adjusting module detects the concentration of the received standard cutting fluid, when the concentration is lower than a normal value, processing is conducted through all the devices, the pumping module monitors the cutting state of all machine tool equipment in real time and adjusts the pumping flow, and the filtering module removes impurities in the working cutting fluid according to all the devices. And the cooling module monitors and analyzes the temperature of each treatment cutting fluid according to a temperature sensor, so that the problems caused by a traditional cutting fluid use mode are solved, cyclic utilization of the cutting fluid is realized, and contribution is made to sustainable development of the manufacturing industry.

The invention relates to the technical field of liquid filtering, in particular to a filtering device and method based on automobile lamp injection mold cooling liquid recycling treatment, and the filtering device comprises a filtering tank and a filtering cylinder which is arranged in the filtering tank and used for filtering cooling liquid, and further comprises a spiral liquid inlet pipe which is vertically arranged in the filtering tank and used for conveying the cooling liquid; a plurality of blades for blowing air to the spiral liquid inlet pipe are arranged in the filtering tank, the bottom of the filtering tank is communicated with an air inlet pipe for air to enter, and a driving assembly for driving the plurality of blades to rotate is arranged in the filtering tank. The transmission roller is matched with the rotating roller, so that the blades rotate at a high speed, air is extracted from the air inlet pipe and discharged through the air guide pipe, airflow accurately penetrates through the center of the spiral liquid inlet pipe, and the heat dissipation efficiency is greatly improved.

The invention discloses a self-adaptive drilling fluid intelligent blending device and a use method thereof. Belongs to the technical field of shale gas exploitation auxiliary devices. The system comprises an original drilling fluid circulating system; the system further comprises a sensor group, a controller, a blending execution group and a drilling fluid circulation system. The sensor group comprises a density sensor, a viscosity sensor, a pH value sensor and a temperature sensor; the controller comprises a digital-to-analog / analog-to-digital conversion module; an algorithm module and a communication module; the blending execution group comprises a metering pump, a stirring device, a feeding pipeline and a valve; according to the invention, various problems existing in the process of blending the drilling fluid are effectively solved.

The invention relates to the field of chemical production, and discloses a preparation device and method of bis (triphenylphosphine) palladium dichloride, the preparation device comprises a base, the top of the base is fixedly connected with a preparation cylinder, the front end of the preparation cylinder is fixedly connected with a window, and the top of the preparation cylinder is fixedly connected with a motor; the device comprises a preparation cylinder, the top of the preparation cylinder is fixedly connected with an arc-shaped supporting plate, the inner wall of the preparation cylinder is rotatably connected with a stirring rod, the outer side of the arc-shaped supporting plate is fixedly connected with a quantifying mechanism, the quantifying mechanism comprises a quantifying cylinder, and the outer wall of the quantifying cylinder is fixedly connected with the outer wall of the arc-shaped supporting plate. And the inner wall of the quantifying cylinder is in sliding connection with a partition plate. By arranging the quantifying mechanism, the adding amount of chemical agents can be accurately controlled, and the inner wall space of the three groups of quantifying cylinders is adjusted according to the total manufacturing amount, so that the quantifying effect is achieved, the proportion of the chemical agents is accurately controlled, and the problem that the adding amount is difficult to accurately control in a traditional mode is solved.

The utility model relates to a washing tower, in particular to a chemical waste gas spray washing tower. The chemical waste gas spray washing tower comprises a tower body, a sealing cover, a dosing cylinder, a dosing pipe, a main pipe, a branch pipe, a water pump and the like, a plurality of waste gas inlets are formed in the front end of the tower body and used for being externally connected with waste gas inlet pipes, a sealing cover is arranged in each waste gas inlet, a circulating water tank is arranged on the right side of the tower body, a dosing cylinder and a water pump are arranged on the top of the circulating water tank, a dosing pipe is arranged at the bottom of the dosing cylinder, a water suction pipe is connected to the water suction end of the water pump, and the dosing pipe and the water suction pipe both penetrate through the circulating water tank. The drainage end of the water pump is connected with a trunk pipe. The PH sensor, the processor and the electric control valve are matched, the PH sensor can detect the PH value of a detergent in the circulating water tank in real time, and the processor controls the electric control valve to supplement chemicals according to signals fed back by the PH sensor, so that the adding amount of the chemicals is accurately controlled, and some problems caused by excessive or insufficient chemicals are avoided.

The utility model discloses a solid-waste-based chromium remover adding device, which relates to the technical field of cement and comprises a centrifugal drum screen, a rotating shaft and a rotating shaft, the first storage steel bin is arranged below the centrifugal drum screen; the first material level indicator is arranged at the top position of the first storage steel bin; the bottom of the spiral reamer is provided with a first conveying channel; a second storage steel bin; the bottom of the first rotor scale is provided with a second conveying channel; a third material inlet and a third material outlet are formed in the third storage steel bin; the bottom of the second rotor scale is provided with a third conveying channel; the mixer is respectively connected with the tail ends of the first conveying channel, the second conveying channel and the third conveying channel, and the mixer is provided with a fourth conveying channel; and the elevator is connected with the mixer, so that the technical effects of accurately controlling the addition amount of the solid waste-based chromium removal agent and ensuring uniform mixing of materials are achieved.

The present invention relates to the technical field of cooking wine fermentation, and specifically to a production process of zero-additive fermented cooking wine, which is produced using a fermentation device; wherein the fermentation device comprises: a fermentation barrel, the bottom of which is fixedly connected to a fermentation funnel; a yeast discharge mechanism, the yeast discharge mechanism comprises a plurality of discharge rings fixedly connected to the inner wall of the fermentation barrel, each discharge ring being away from the outer peripheral surface of the fermentation barrel and having a plurality of groups of row holes in an annular array; a stirring and mixing mechanism, the stirring and mixing mechanism comprising a diversion barrel rotatably connected to the inside of the fermentation barrel. Yeast can be evenly discharged into various positions in the fermentation barrel through the discharge ring and the row holes in the yeast discharge mechanism. Since the discharge ring is in a circular ring shape, this design can ensure that the yeast is evenly distributed in the annular pipe, and since the row holes are located at both ends of the discharge ring, the yeast can be more evenly distributed to different positions in the malt koji, thereby achieving a more comprehensive distribution of the yeast in the malt koji.

The application discloses a zinc powder automatic control method, device and system for antimony salt purification process, which comprises the following steps: constructing a copper and cobalt removal fitting model, calculating the optimal potential setting value by using a particle swarm algorithm and setting the potential setting value; updating the potential setting value by using a fuzzy algorithm and a case reasoning method; constructing a three-dimensional fuzzy rule according to the difference between the current potential measurement value and the potential setting value, generating a zinc powder adjustment amount, adding the current zinc powder addition amount to obtain a new zinc powder amount setting value, writing the new zinc powder amount setting value into a DCS system on line, and controlling the automatic feeding device to add zinc powder. The above steps are repeated to achieve stable potential control and realize the minimum zinc powder consumption. The zinc powder automatic control method for the antimony salt purification process, which automatically adjusts the zinc powder addition amount according to the potential fluctuation, realizes accurate control of the zinc powder addition amount, effectively reduces the zinc powder consumption in zinc hydrometallurgy, and reduces the production cost in the antimony salt purification process.

The invention discloses a method for enhancing the mechanical property of GCr15 bearing steel by adding vanadium nitride through laser additive manufacturing, and belongs to the field of high-end equipment manufacturing and new materials.The method comprises the following steps that S1, an alloy powder raw material is prefabricated through a high-energy ball mill, and dried GCr15 powder and VN powder are mixed and then put into the high-energy ball mill to be fully and evenly mixed; s2, the gas environment of the laser additive manufacturing equipment construction cavity is set to be nitrogen, original air of the construction cavity is exhausted into a waste gas cabin through the nitrogen, and the oxygen concentration in the cavity is reduced to 200 ppm or below; and S3, nitrogen is used as circulating gas, and the whole process of preparation, production and cooling of laser additive manufacturing is carried out. According to the method, the microstructure of the alloy is regulated and controlled by increasing the N element content and the V element content in the alloy. Nitrogen atoms enable a strengthening phase to be more easily and uniformly distributed in a solid solution, vanadium can enable fine grain strengthening and precipitation strengthening to be generated in the steel, and the mechanical property of the GCr15 bearing steel alloy is greatly improved through the two reasons.

The application discloses a kind of copper sulfate electroplating solution preparation device and method for chip packaging, it is related to chip packaging technical field, and its technical solution points are as follows: including copper sulfate pentahydrate storage tank, negative pressure feeder, feed volume bin, electronic scale, copper sulfate solution preparation tank, preparation pump one, micropore filter one, resin barrel, electroplating solution preparation tank, spiral spray head, preparation pump two, heat exchanger, micropore filter two;Copper sulfate pentahydrate storage tank is connected by negative pressure feeder, feed volume bin, electronic scale and copper sulfate solution preparation tank;Copper sulfate solution preparation tank is communicated with electroplating solution preparation tank by micropore filter one and resin barrel, and copper sulfate solution is added into electroplating solution preparation tank by preparation pump one after preparation in copper sulfate solution preparation tank;Electroplating solution preparation tank and preparation pump two, heat exchanger form circulating system, and micropore filter two is used to fill electroplating solution.The whole preparation device of the application adopts automatic instrument and logic control, and full-process can realize automatic and intelligent operation.

The present application provides an ink concentration adjusting device and a pad printing machine, wherein the ink concentration adjusting device comprises a solvent tank, a stirrer, a conveying pipeline and a flow control valve. The solvent tank is configured to store a solvent for diluting the concentration of ink; the stirrer is arranged in an ink tank of the pad printing machine and is configured to stir the solvent and the ink in the ink tank uniformly; the conveying pipeline is connected to the solvent tank and the ink tank; and the flow control valve is arranged in the conveying pipeline and is configured to control the volume of the solvent entering the ink tank.

The invention provides a preparation method of a copper-titanium alloy, which comprises the following steps: S1, mixing copper particles and TiH2 powder according to the composition proportion of the copper-titanium alloy, and forming the TiH2 powder on the surfaces of the copper particles to obtain composite copper particles; s2, the composite copper particles are placed in a crucible, and a directional solidification furnace is vacuumized and then filled with carbon-containing reducing gas; and S3, the crucible in the step S2 is heated so that the composite copper particles can reach the melting temperature, then the crucible is immersed into a cooling medium to be subjected to directional solidification cooling, and the copper-titanium alloy is obtained. The invention further provides the copper-titanium alloy prepared through the preparation method. According to the preparation method provided by the invention, TiH2 micro powder is uniformly adhered to the surfaces of copper particles in a mixing manner, and then directional solidification and cooling of the composite copper particles are carried out under micro-negative-pressure reducing gas; the copper-titanium alloy obtained by the process weakens the negative influence of titanium on the conductivity of copper, so that the copper-titanium alloy has the advantages of strength and conductivity.

The invention discloses a method for recovering silver from silver-containing waste catalysts. The method comprises the following steps: loading the silver-containing waste catalysts into a multi-stage series leaching column, adding a nitric acid solution to the top of the first-stage leaching column for leaching, and flowing out from the bottom of the last-stage leaching column, collecting the flowing silver nitrate leaching solution in sections, returning the silver nitrate leaching solution with a lower concentration to the first-stage leaching column for cyclic leaching, and obtaining metallic silver through precipitation and reduction of the silver nitrate leaching solution with a higher concentration; when the leaching of the silver-containing waste catalyst in the first-stage leaching column is completed, removing the first-stage leaching column and loading a new silver-containing waste catalyst, connecting the first-stage leaching column to the bottom of the last-stage leaching column as a new last-stage leaching column, and the second-stage leaching column as a new first-stage leaching column, and so on. The method has a short silver recovery process for silver-containing waste catalysts, low cost, and a silver recovery rate greater than 99.8%, and a silver ingot purity of ≥99.95%.

The utility model discloses a cleaning device for magnetic core processing, which belongs to the technical field of magnetic core cleaning and comprises a support frame, a water tank is arranged in the support frame, a shell is arranged at the top of the support frame, and a filter component for filtering cleaning fluid is arranged in the water tank. A conveying assembly for adding a cleaning agent into the water tank is further arranged on the supporting frame, through the arranged filtering assembly, the effect of filtering the cleaning liquid flowing into the water tank from a conveying net belt is achieved, impurities in the cleaning liquid can be effectively removed, the cleaning effect of the cleaning liquid is prevented from being reduced, and the service life of the cleaning liquid is prolonged; through the arranged conveying assembly, the effect of adding the cleaning agent into the water tank is achieved, the adding amount of the cleaning agent can be accurately controlled, the optimal concentration of the cleaning agent is maintained, the cleaning effect is guaranteed, excessive use of the cleaning agent can be avoided, waste is reduced, and cost is reduced.

The utility model provides a cellulose, diatomite and silica gel automatic unpacking addition conveying system, including conveying assembly, belt conveyor, wind and spray ultraviolet sterilization machine, automatic unpacking machine, pipeline and processing apparatus, conveying assembly is located between a plurality of groups of material package with belt conveyor, the side of belt conveyor away from conveying assembly is equipped with automatic unpacking machine, the outside of belt conveyor is equipped with wind and spray ultraviolet sterilization machine. The utility model has the advantages of the following, the utility model provides a kind of control system for reducing manual feeding, the system uses mechanical hand, identification camera, mechanical hand operation guide rail, belt conveyor, wind and spray ultraviolet sterilization machine, automatic unpacking machine vacuum negative pressure conveying system and automatic instrument and valve, accurately control material addition amount, both can satisfy production demand, can also reduce the labor intensity of staff, reduce the contact of person and material, reduce production cost.

The present application relates to the technical field of laser plastic welding, and specifically discloses a modified polycarbonate light-absorbing transparent plastic for laser welding and a preparation method thereof. The modified polycarbonate light-absorbing transparent plastic for laser welding comprises the following raw materials: polycarbonate, polyamide, thermoplastic polyester elastomer, light-absorbing slurry, lubricant, and antioxidant; the preparation method comprises pre-drying the polycarbonate, adding the polyamide, thermoplastic polyester elastomer, light-absorbing slurry, lubricant, and antioxidant into a mixer, stirring and mixing, and then extruding and granulating to obtain the obtained plastic; the present application uses polycarbonate, polyamide, and thermoplastic polyester elastomer together to produce laser welding plastics, and all of the three are thermoplastic materials with good processability, and their common use can achieve complementary characteristics, significantly improve the overall strength, toughness, thermal stability, and impact resistance of the plastic for welding, and optimize the optical properties of the plastic for welding, thereby improving the laser welding efficiency and welding quality.

The utility model relates to the technical field of sewage treatment, in particular to an efficient precipitation type sewage treatment device which comprises a precipitation tank, the device further comprises a first motor and a filtering assembly. One side of the settling tank is provided with a water inlet pipe, a blow-off pipe, a partition plate, a drain pipe and a filter component; the lower end of the settling tank is fixedly connected with a first motor; the output end of the first motor is provided with a first rotating rod; the outer side of the first rotating rod is provided with stirring blades; according to the device, a self-locking motor is started, the self-locking motor drives a cam to rotate, the cam drives a shifting block to move, the shifting block drives a senna tile disc to rotate, the senna tile disc drives a second rotating rod to rotate, the second rotating rod drives a quantitative plate to rotate, the quantitative plate drives flocculates to move to a discharging pipe, and the flocculates are discharged into a settling tank through the discharging pipe, so that quantitative feeding is realized; the working efficiency is improved, and the addition amount is accurately controlled.

The invention discloses a method for preparing a composite intermediate layer suitable for TLP connection of a nickel-based alloy, which belongs to the field of diffusion welding and includes an atomization powder making process, a ball milling process and a cold isostatic pressing process; AuSi powder is prepared by an atomization powder making process, and then the AuSi powder is mixed with NiTi powder by a ball milling process, and finally a composite intermediate layer blank is obtained by cold isostatic pressing. The invention prepares the AuSi composite intermediate layer by a powder metallurgy process, improves the uniformity of the distribution of NiTi particles in the AuSi matrix, and solves the problems of residual AuSi eutectic structure in the weld caused by the uneven distribution of NiTi particles and solidification hot cracks in the weld. The mass ratio that enables the complete reaction of AuSi powder and NiTi powder is accurately calculated by a chemical reaction formula, and the addition amount of NiTi particles is accurately controlled by a mechanical ball milling process, which solves the problem that the excessive Ti element is easy to react with the Au element to form a brittle Au4Ti compound during the welding process.

The invention discloses nucleated cell enriching and dyeing integrated equipment and method, and the integrated equipment comprises an enriching and dyeing unit which comprises a microfluidic device and is used for receiving a blood sample to be detected and enriching a target substance from the blood sample; the blood sample adding unit is used for adding a blood sample to be detected into the microfluidic device; the reagent taking and placing unit is used for sucking a reagent and adding the reagent into the microfluidic device; the microfluidic device comprises: a sample introduction tube comprising a tube main body, the lower end of which is provided with a buckling part protruding from the side wall of the tube main body; the liquid accumulation lining table is arranged below the sample injection pipe; the buckling cover is arranged on the pipe main body in a sleeving manner, the buckling cover spirally descends to be in threaded connection with the liquid accumulation lining table, the buckling part is pressed downwards to be close to the liquid accumulation lining table, and the filtering assembly arranged between the buckling part and the liquid accumulation lining table is pressed tightly. The nucleated cell enriching and dyeing integrated equipment can complete the whole process from blood sample conveying to target substance enriching and dyeing, and is beneficial to improving the detection efficiency.

This invention discloses a platinum channel oxygen bubble suppression and elimination device and glass production equipment. The platinum channel oxygen bubble suppression and elimination device includes a porous cast-in-place base, a high-temperature resistant pipe, a water supply pipe, and a peristaltic pump. The porous cast-in-place base is used to embed the platinum channel. The high-temperature resistant pipe is at least partially embedded in the porous cast-in-place base. One end of the water supply pipe is connected to a water source, and the other end of the water supply pipe is connected to one end of the high-temperature resistant pipe. The peristaltic pump is installed on the water supply pipe. The above-mentioned platinum channel oxygen bubble suppression and elimination device can save construction and operating costs, can precisely control the amount of distilled water dripped into each section according to process requirements, is not affected by the structure and thickness of the external insulation material of the platinum tube, reduces the impact on other equipment in the platinum channel (such as electric heating system, agitator), and achieves the elimination of air around the platinum channel, reducing the oxidation of platinum by oxygen.

The utility model discloses a low-energy-consumption high-quality rice bran steaming system. An outlet of a rice bran articulated chute is connected with an inlet of a rice bran steaming machine through an iron remover, a rice bran cleaning sieve, a scraper conveyor and an elevator; the upper three layers of the rice bran steaming machine are steam steaming layers, the lower parts are a hot air drying layer and an air cooling layer, and the tops of a steam interlayer, a hot air interlayer and a cold air interlayer below each layer are respectively provided with a punching sieve plate; a drainage port of the steam interlayer is connected with a medium-temperature condensate water tank through a water seal, an outlet of the medium-temperature condensate water tank is connected with a hot side inlet of an air-water heat exchanger through a medium-temperature condensate water pump, and a hot side outlet of the air-water heat exchanger is connected with a low-temperature condensate water tank. An outlet of the low-temperature condensate water tank is connected with a top water spraying opening of the rice bran steaming machine through a low-temperature condensate water pump; a cold side inlet of the air-water heat exchanger is communicated with atmosphere, and a cold side outlet of the air-water heat exchanger is connected with an air inlet of the hot air interlayer; an inlet of the cold air interlayer communicates with the atmosphere. The system is low in steam consumption, capable of achieving continuous production and environmentally friendly.

The application belongs to the field of water-based paint processing and relates to a pigment adding tool for water-based paint processing, which comprises a storage tank, a feeding mechanism, a dispersion mechanism and a dust collecting mechanism; the storage tank is used for storing pigments, is provided with an inlet at the top and an outlet at the bottom; the feeding mechanism is connected to the outlet of the storage tank and is used for quantitatively conveying the pigments in the storage tank to the dispersion mechanism; the dispersion mechanism is located on the outlet side of the feeding mechanism and is used for mixing the paint and the added pigments; the dust collecting mechanism is arranged above the dispersion mechanism and is used for sucking and collecting the dispersed dust to keep the production environment clean. The technical scheme provided by the application can accurately control the added amount of pigments, guarantee the consistency of the color and the quality stability of the water-based paint, effectively solve the dust pollution problem in the pigment adding process, improve the production environment and protect the health of the operators.

This invention provides a waste paper pulp decolorization and color adjustment device, relating to the field of waste paper pulp recycling technology. It includes: a processing tank; a top support frame fixedly installed on the top of the processing tank; a vertical rotating shaft connected inside the processing tank and connected to the top support frame; a drive motor fixedly installed outside the processing tank; a synchronous belt connected to the top of the drive motor and connected to the top of the vertical rotating shaft; and a planetary rotating frame connected to the outside of the vertical rotating shaft, located inside the top of the processing tank. The drive motor, through the transmission action of the synchronous belt, drives the vertical rotating shaft to rotate, causing the large impeller on the vertical rotating shaft to rotate accordingly. This efficiently mixes and stirs the waste paper pulp inside the processing tank, effectively accelerating the flow rate of the waste paper pulp within the tank. This solves the problem in the bleaching and decolorization process of waste paper pulp where it is difficult to achieve sufficient and uniform mixing of the bleaching agent and the waste paper pulp, easily leading to inconsistent decolorization results.

The utility model relates to the technical field of chlorinated paraffin production equipment, in particular to a blending device for chlorinated paraffin raw materials, which comprises a support, and a PLC (programmable logic controller), a plurality of raw material tanks, a dynamic mixing tank, a detection tank and a collection tank are mounted on the support. Each raw material tank is connected with the dynamic mixing tank through a pipeline; an outlet of the dynamic mixing tank is connected with one end of the detection tank through a pipeline; and a detection mechanism is mounted on the detection tank and is electrically connected with the PLC. According to the device, the mass flow meter and the electric control valve are matched with the PLC, the adding amount of various raw materials can be accurately controlled, the stability of the product quality is improved, the stirring mechanism of the device is driven by the variable frequency motor, a first stirring plate and a second stirring plate rotate reversely, the raw materials are mixed more uniformly, and the production efficiency is improved. And various parameters of the blended raw materials can be detected in real time by arranging the detection mechanism, so that the production efficiency is improved, and meanwhile, the resource waste is reduced.

The utility model relates to mulberry leaf crushing technical field especially relates to a kind of automatic mulberry leaf crushing device. Including pulverization box, the outer wall of pulverization box is fixedly connected with fixed box, the outer wall of fixed box is fixedly connected with first motor, the output of first motor is fixedly provided with rotating rod, the outer wall of rotating rod is fixedly connected with cam, the inner wall of cam is slidably connected with sliding block, the outer wall of sliding block is fixedly connected with connecting plate, the inside of connecting plate is fixedly connected with shaft, the outer wall of shaft is rotatably connected with connecting frame, the outer wall of connecting frame is fixedly connected with push plate, the inside of push plate is slidably connected with support rod, the bottom of push plate is fixedly connected with brush, the inside of pulverization box is fixedly connected with guide rail. The utility model provides a kind of automatic mulberry leaf crushing device, mulberry leaf is added into pulverization box through discharge gate and is crushed by crushing assembly, first motor is started to drive rotating rod rotation, mulberry leaf is reciprocatingly pushed by push plate and brush, prevent mulberry leaf accumulation or jam in one place, keep the smooth of crushing process.

The invention provides scanning equipment, a control method and image forming equipment. The scanning equipment comprises a sliding rod, a support and a lubricant adding device. The lubricant adding device is mounted on the bracket; the output end of the lubricant adding device is communicated with the matching area; according to the scanning equipment, the lubricant adding device is fixedly connected with the support and can reciprocate along with the support, the support slides along the sliding rod in the lubricant adding process, the lubricant can be smeared more evenly and comprehensively, the whole sliding rod can be smeared with the lubricant, and the working efficiency is improved. The lubricant adding device can timely and accurately add the lubricant to the matching area according to the resistance condition between the support and the sliding rod, and the problem that the service life is affected due to excessive abrasion of scanning equipment is solved.

The invention discloses a toughening modified PP material for an automobile and a preparation method of the toughening modified PP material. The invention discloses a toughened and modified PP (polypropylene) material for an automobile. The toughened and modified PP material is prepared from the following raw material components in parts by mass: 100 parts of PP resin, 12 to 20 parts of isocyanate grafted POE (Polyolefin Elastomer), 8 to 16 parts of hydroxylated carbon nanotubes, 6 to 12 parts of nano organic montmorillonite, 6 to 12 parts of compatilizer, 0.3 to 0.4 part of composite beta nucleating agent and 0.3 to 0.5 part of Tinuvin 144 light stabilizer. On the other hand, the invention provides a preparation method of the toughening modified PP material for the automobile. The material disclosed by the invention is excellent in toughness, relatively excellent in aging resistance and relatively good in strength, and can completely meet the performance requirements of the automobile bumper material.

The invention discloses a preparation method of medicinal formaldehyde casein, comprising the steps of (1) adding casein and 0.5M carbonate aqueous solution into a reaction vessel, stirring and dissolving; adding paraformaldehyde; reacting to obtain a reaction solution containing formaldehyde casein; (2) adding ammonia water into the reaction solution containing formaldehyde casein, reacting; filtering, washing the filter cake with water, and obtaining a crude formaldehyde casein product; (3) dissolving the crude formaldehyde casein product in an organic solvent, stirring and beating to obtain a beating mixed solution; (4) filtering the beating mixed solution, washing with an organic solvent, obtaining a filter cake; drying under reduced pressure to obtain a dry material; (5) transferring the dry material into a rotary vibrating screen, sieving with a 35-mesh screen; collecting the material passing through the screen, namely, the medicinal formaldehyde casein. The invention is simple to operate, has readily available raw materials, low free formaldehyde content, high casein content, excellent product quality, high operational safety, environmental friendliness, and is suitable for industrial production.

This utility model discloses a secondary air nozzle device for an oxygen-enriched side-blown recycled lead smelting furnace, relating to the field of smelting technology. It includes a valve body, an adjusting shaft, and an adjusting device. The adjusting device is fixedly installed on the upper end face of the valve body. The valve body has a mixing chamber and a transition chamber arranged sequentially vertically along the same central axis. An upward-through groove is opened at the center of the upper end face of the mixing chamber, and a downward-through air jet is opened at the center of the lower end face of the transition chamber. The adjusting shaft is slidably and sealed within the groove. A mixing fan blade device is rotatably connected to the adjusting shaft. A flow control valve core is fixedly connected to the lower end of the adjusting shaft. The adjusting shaft and the adjusting device are fixedly connected. The mixing fan blade device is located within the mixing chamber, and the flow control valve core is located within the transition chamber. This device can adjust the position of the flow control valve core via an electric telescopic rod device to precisely control the amount of gas added. The mixing fan blade device simultaneously mixes the gas uniformly, ensuring complete combustion inside the smelting furnace and improving production efficiency.

The utility model discloses formaldehyde disinfectant adding equipment for shrimp seed breeding, which comprises a culture pond, and the right side of the culture pond is fixedly connected with a box body. A conveying pump is matched with a suction plate, water on the left side in a culture pond is conveyed into a mixing bin, a metering pump is started, formaldehyde disinfectant in a storage bin is conveyed into the mixing bin through the metering pump, the metering pump stops working after conveying the formaldehyde disinfectant with the preset amount, a motor is started, the motor drives a stirring rod to rotate, and the stirring rod is driven by the motor to rotate. The stirring rod fully mixes water in the mixing bin with the formaldehyde disinfectant, the control valve is started, the control valve conveys the water mixed with the formaldehyde disinfectant to the right side of the interior of the culture pond, the process is repeated, the formaldehyde disinfectant can be evenly distributed in the culture pond, the advantage that quantitative and even adding can be achieved is achieved, the adding amount can be accurately controlled, and meanwhile the adding efficiency is improved. The shrimp seeds can be quickly and uniformly diffused into the whole water body, so that the shrimp seed generation efficiency is improved.