272results about How to "Suitable for general promotion" patented technology

The invention discloses an industrial robot workpiece positioning grabbing method based on visual guidance. The method includes the following steps that 1, a system parametric model is established, and calibration of a camera is conducted; 2, a workpiece feature template is determined; 3, workpiece template living examples are sought for, and the positions of workpieces are determined according to coordinate information of the living examples; 4, the speed of a target workpiece is calculated; 5, the pose, in a robot basic coordinate system, of the workpiece is predicted when the workpiece is located at a station to be grabbed; 6, a robot moves according to a planned path to approach and grab the workpiece and place the workpiece at the position of a target point. The invention further discloses a system for implementing the industrial robot workpiece positioning grabbing method based on visual guidance in the patent claim 1. The system comprises a conveying belt, an optoelectronic switch, a camera, an industrial control computer, the robot and the target workpiece. The system has the advantages of being high in positioning accuracy, high in working efficiency, high in automation degree and the like.

The invention discloses an apple peeling and core removing all-in-one machine, which comprises a machine frame, wherein a pulley rail is arranged under the machine frame; an L-shaped pushing rod is arranged under the pulley rail; the tail end of the pushing rod is provided with a peeling cutter blade; two groups of motors are arranged under the machine frame; rotatable telescopic rods are arranged under the motors; a steel needle used for being inserted into an apple so as to conveniently rotate for peeling is arranged under one group of telescopic rods; a core removing device is arranged under the other group of telescopic rods; a conveying belt is arranged in the machine frame; a circular ring-shaped tray is arranged on the conveying belt; a recovery box used for discharging out apple cores is arranged under the conveying belt; in addition, the recovery box is arranged right under the core removing device; the right end of the conveying belt is provided with a collecting box; a switch is also arranged on the machine frame. The apple peeling and core removing all-in-one machine has the advantages that the structural design is reasonable; the occupied area is small; the peeling and the core removing are integrated; the work efficiency is high; the apple peeling and core removing all-in-one machine is suitable for being generally popularized and used.

The invention discloses an apparatus for automatically inspecting defects of PCB (printed circuit board), comprising a frame, wherein a horizontally-arranged board feeding roller group, a board feeding compacting roller group, a position detecting switch, a light source detecting mechanism, a camera device, a board exit compacting roller group, a horizontally-arranged board exit roller group and a power device are arranged on the frame; the horizontally-arranged board feeding roller group is connected with a computer with a detecting and controlling program and is operated under the control of the computer; the position detecting switch is used for detecting the PCB; in use, the board feeding compacting roller group and the board exit compacting roller group act sequentially to send the PCB to be photographed gradually by the camera device, then the photographed images are spliced into an image by the computer, and the computer conducts comparison and operational analysis on the spliced image and a standard image prepared in advance so as to find the defect; furthermore, the outside of the defects are surrounded by lines of different colors and the serial number of the board is marked so that the board can be searched and repaired. The apparatus has a simple structure, smart concept, high automation, high inspection efficiency, high detection veracity, convenience in operationand low manufacturing cost, and is suitable for general popularization and application.

The invention discloses a Bayer-process red mud foamed concrete blocking block and a preparation method thereof, belonging to the technical field of preparation of foamed concrete blocking blocks, and mainly relates to a Bayer-process red mud foamed concrete blocking block and a preparation method thereof. The Bayer-process red mud foamed concrete blocking block disclosed by the invention comprises the following components in percent by mass: 45%-55% of Bayer-process red mud, 15%-25% of blast furnace water-quenching slag, 15%-20% of cement and 5%-15% of magnesium oxychloride binding material. According to the preparation method, oil sludge sand is used as the main material and is subjected to the process steps of batching, mixing, foaming, strewing, de-molding and maintaining, so as to obtain the foamed concrete blocking block which is high in strength, light in weight and good in thermal insulation effect. Moreover, Bayer-process red mud is sufficiently utilized, so that the waste material is changed into things of value.

This invention discloses a polyester resin for indoor powder paint synthesized from crude trimellitic anhydride (with purity of 90-95%) and waste polyester material alcoholysate and a preparation method thereof. The method comprises the steps of: taking waste polyester as the raw material, adopting 1, 3-diethylimidazole fluoroborate as the catalyst, selecting the catalyst content and the process temperature to regulate the molecular weight and distribution of the obtained diol compound, and when the molecular weight and distribution are within an appropriate range, replenishing terephthalic acid, isophthalic acid and the catalyst according to the formula to complete stepwise polymerization reaction, and performing vacuum pumping to carrying out condensation polymerization reaction, and using crude trimellitic anhydride (with purity of 90-95%) to block the end, thus finally obtaining the polyester resin for indoor powder paint. The resin has low melt viscosity, high glass transition temperature, and narrow molecular weight distribution, and the powder paint prepared from the resin has leveling performance and luster superior to the prior art.

The invention discloses high-temperature-resistant polyester for a powder coating and a preparation method of the high-temperature-resistant polyester. The preparation method comprises the following steps that 1, a polyester intermediate solution is prepared; 2, a silicon intermediate solution is prepared; 3, the polyester intermediate solution and the silicon intermediate solution react to obtain high-temperature-resistant polyester for the powder coating. High-temperature-resistant polyester for the powder coating can meet the high-temperature-resistant requirement of 300 DEG C or above, and the adhesive force and glossiness obtained after 1 h and 3 h of baking at the temperature are not obviously changed, and are superior to those in the prior art under the same condition.

The invention provides a production process of waste utilization for preparing reclaimed rubber through sewage oil sludge. The technical scheme is as follow: mixing sewage oil sludge after being cleaned up with waste tire powder, hose powder, galoshes powder in different proportions of 1:2-1:9 and adding into a crumb activation tank, stirring and heating up to 180-260 DEG C, insulating for 2-10 hours, exhausting the gas at the interval of 1-3 hours, then discharging, to form activated rubber powder different qualities which is refined into recycled rubber film with different thicknesses. The production process provided by the invention solves the problem of sewage oil sludge contaminating soil and the environmental problem. Changing waste into renewable resource saves valuable energy and a lot of money, has an enormous social and economic benefit, and is suitable for popularization and application.

The invention relates to a detection method for trace forbidden or restricted iodate and bromate in a cosmetic, and aims to provide the method which has the characteristics of high specificity, high anti-interference capacity and high accuracy. According to the technical scheme, the ion chromatography method for detecting iodate and bromate in the cosmetic comprises the following steps of: (1) preparing a sample: weighing a certain amount of cosmetic and placing in a centrifuge tube, and adding ultra-pure water to keep constant volume for later use; or adding the ultra-pure water and then ultrasonically oscillating, then loading on a centrifuge for centrifugal separation, taking supernatant and keeping constant volume for later use by using the ultra-pure water; or adding a certain amount of methylene dichloride, uniformly mixing through vortex, adding the ultra-pure water, ultrasonically oscillating, then loading on a centrifuge for centrifugal separation, taking the supernatant and keeping constant volume for later use by using the ultra-pure water; (2) enriching and purifying: taking the supernatant and collecting eluent through a water-phase filter membrane and an RP (Reversed Phase) column; and (3) loading on a machine for detection: taking the eluent and inputting into an ion chromatograph equipped with a post-column derivation device and an ultraviolet detector for detection.

The invention provides a biomass pellet fuel heating appliance, comprising a combustion furnace, a heat exchanger, a central supply system for supplying biomass pellet fuel to the combustion furnace, and a barn; the heat exchanger is used for being connected to one end of a horizontal nozzle of the combustion furnace, the barn includes a heating chamber, the heat exchanger is disposed in the heating chamber, and the combustion furnace and the central supply system are disposed outside the barn; the central supply system is used for providing biomass pellet fuel centrally for more than two combustion furnaces and comprises a suction unit with a vacuum pump, a storage barrel, more than two suction pipes, more than two feed pipes, a screw feeding mechanism, a feeding distribution connector, more than two electromagnetic valves, more than two vacuum buckets and more than two gravity valves. The heating appliance provided herein is reasonable and practical in design, safe and green, and efficient and labor-saving, reduces cost, saves resources, improves work efficiency and enterprise economic benefit, and is suitable for popularization and use.

The invention provides a technique for preparing peanut oil and peanut albumen powder at low temperature. The technical scheme is as follows: the technique comprises the following steps: cleaning redcoat-removed peanut kernels, baking at low temperature, regulating, pressing at low temperature, filtering, leaching at low temperature, desolventizing at low temperature, refining and carrying out superfine grinding to obtain the cold-pressed peanut oil and peanut albumen powder product. The technical process comprises the following steps: (1) regulating; (2) low-temperature pressing; (3) filtering; (4) low-temperature leaching; (5) low-temperature desolventizing; (6) refining; and (7) superfine grinding. The technique can satisfy the demands of high-end consumers for nutritive value and subtle fragrance of the peanut oil, can produce the cold-pressed peanut oil and low-denaturalization peanut albumen powder without damaging the nutritional ingredients in the peanut oil, enhances the production efficiency and economic benefit, and is suitable for universal popularization.

The invention provides a method for manufacturing a downhole fracturing proppant by oil sludge sand, belonging to the utilization of waste materials. The technical scheme is as follows: the method comprises the steps of carrying out separation of oil, water, sludge and sand altogether on the oil-containing sludge sand, processing the separated sand in a high-temperature furnace at 800 DEG C to 1100 DEG C, screening, removing impurities, milling into 150-400meshes of powders by a Raymond mill, adding 1-3 times of amount of high-aluminum ore powder and 10-30% of iron ore, stirring uniformly to form 20-90meshes of particles; heating and drying the particles, transporting the particles into a rotary kiln, carrying out constant-speed rotation firing at 200 DEG C to 1500 DEG C so as to obtain the oil field downhole fracturing proppant. According to the method, the problem that the oil-containing sludge-sand pollutes soil and environment is solved effectively, valuable energy resource and a large amount of cost are saved, great social benefits and economic benefits can be generated, and the method is suitable for popularization and application.

The invention discloses high-water-permeability concrete water-permeable ground tiles. The high-water-permeability concrete water-permeable ground tiles are prepared from the following raw materials in parts by weight: 120-150 parts of a main material, 2-10 parts of glutinous rice flour, 1-6 parts of gypsum, 1-2 parts of magnesium carbonate, 20-40 parts of regenerated rubber powder, 60-100 parts of blast furnace slag, 1-2 parts of aluminum powder, 6-10 parts of fly ash, 3-8 parts of sepiolite powder, 1-6 parts of mica powder, 4-10 parts of basalt fiber, 2-9 parts of heavy calcium carbonate, 1-4 parts of microcrystalline cellulose, 1-2 parts of polydimethylsiloxane, 1-2 parts of tartaric acid, 1-2 parts of a water-reducing agent, and 100-200 parts of water. A carbon nanotube composite is prepared by adopting a technology comprising the following steps of uniformly mixing urea, formaldehyde and water, adjusting the pH value of the system to 8.6-8.9, and carrying out heating with stirring; adding lecithin, carbon nanotubes and N,N-dimethyl-formamide, and carrying out uniform stirring; and then, adding polypropylene, and carrying out stirring so as to obtain the carbon nanotube composite.

The invention discloses a preparation method of high-temperature resistant conveying belt covering glue. The high-temperature resistant conveying belt covering glue comprises the following components in parts by weight: 30-50 parts of ethylene propylene diene monomer rubber, 40-70 parts of butadiene styrene rubber, 40-80 parts of reinforcing fillers, 2.5-8 parts of a vulcanizing agent, 0.2-8 parts of a vulcanizing accelerator, 2-20 parts of a vulcanizing activator, 5-10 parts of a coupling agent, 5-35 parts of a plasticizer and 1-5 parts of anti-aging agent. The preparation method comprises the following steps: (1) primarily mixing; and (2) secondarily mixing. The preparation method has the beneficial effects that a high-temperature severe environment in an sintered ore workshop can be adapted, the cost of the high-temperature resistant conveying belt is lowered, the service life of the high-temperature resistant conveying belt is prolonged, and the economic efficiency and the experience benefit of an enterprise are increased; the preparation method is suitable for being generally popularized and used.

The invention discloses a ceramic glaze for generating natural weathering and erosion on the surface of a ceramic product, comprising the following raw materials in percentage by weight: 65%-70% of glass powder, 15%-25% of quartz, 5%-15% of feldspar, 1%-7% of zinc oxide and 5%-15% of kaolin. The ceramic glaze can have natural patterns generated through natural weathering and erosion, stripping, collapse and desquamation on the surface of the ceramic product after being baked by adopting the appropriate proportions of the glass powder, the quartz, the feldspar, the zinc oxide and the kaolin, and the natural patterns just like archaic archaistic decorations of the ceramic product, which can be achieved on an ancient ceramic deeply buried under the ground through the influence action of millennial weather, organisms, other factors, and the like, and have the decorative effect of returning to original nature; and in addition, the invention has the advantages of ingenious conception, wide application scope and suitability for general popularization and usage.

The invention discloses an air purifier. The air purifier comprises a purifier casing, an air inlet fan, a filter net, a water mist generator, an electrostatic device and a sewage storage box, wherein the air inlet fan is mounted on the inner side of an air inlet or an air outlet of the purifier casing; the filter net comprises a front filter net body and a back filter net body which are mounted on inner sides of the air outlet and the air inlet of the purifier casing respectively, and the front filter net body, the back filter net body and the purifier casing form an airtight cavity; the water mist generator is mounted at the bottom of the airtight cavity, is used for generating small water mist particles with high concentration and enables the cavity to be full of the particles; the electrostatic device is mounted in the purifier and matched with the water mist generator to enable the water mist particles to be charged; the sewage storage box is mounted at the bottom of the purifier. The air purifier has the benefits as follows: the filtering effect is good; charged water mist is collected into the sewage storage box after adsorbing dust, and the air purifier is easy to clean and convenient to use; no consumable is used, core filter components are not required to be replaced frequently, and the using cost is reduced.

A combined cyclone-wet fibre grate cleaner with a reverse U-shaped structure is composed of a cyclone cleaner and a wet fibre grate cleaner, which are serially connected via an elbow pipe and diameter varied pipe. A water cleaner is installed to the side surface of said wet fibre grate cleaner. Its advantages are high dust removing efficiency and simple structure.

The invention discloses a piece of intelligent agricultural irrigation equipment which comprises a water storage tank, a first water suction pump, a second water suction pump, a humidity sensor and a water spraying faucet, wherein the first water suction pump is communicated with the water storage tank through a water pipe, a water level sensor is arranged at the bottom part of the water storage tank, a filter screen is installed at the top end of the water storage tank, a control box is arranged at the top part of the water storage tank, a warning device is installed at the top of the control box, a display screen is fixedly installed on the outer surface of the control box, the water storage tank is communicated with the second water suction pump through a water pipe, an electromagnetic main valve, a filter, a vent electromagnetic valve, a pressure sensor, a booster pump, a flowmeter and a water velocity regulation electromagnetic valve are sequentially arranged on a water pipe on the right side of the second water suction pump, the water velocity regulation electromagnetic valve is arranged on an irrigation water pipe, and the humidity sensor is arranged in soil below the irrigation water pipe. The intelligent agricultural irrigation equipment is reasonable in design and high in degree of automation, and is suitable for generalization and application.

The invention discloses a high-temperature far infrared radiation energy-saving composite coating and a preparation method thereof, aiming at providing a composite coating with the advantages of stable structure, low production cost and little environment pollution. The high-temperature far infrared radiation energy-saving composite coating is technically characterized by comprising the followingcomponents in percent by weight: 25-30 percent of Baihou asbolite, 10-15 percent of Yinjiang kaolin, 5-7 percent of manganese oxide, 6-8 percent of ferric oxide, 4-6 percent of chromic oxide, 15-20 percent of Guodong mortar, 10-12 percent of aluminum oxide, 6-8 percent of zircon sand, 3-5 percent of titanium oxide and 1-3 percent of lanthanum oxide.. The preparation method comprises the steps of:1, crushing the Baihou asbolite and the Yinjiang kaolin, and screening; 2, respectively screening the aluminum oxide, the manganese oxide, the zircon sand, the ferric oxide, the titanium oxide and the chromic oxide; 3, respectively loading all screened components in a sagger and then entering a kiln for calcining; and 4, smashing and blending calcined block materials, grinding through a wet process ball grinder, and screening to obtain the composite coating. The invention belongs to the technical field of coating preparation.

The invention provides a making method of a sourdough fermented steamed bun. According to a technical scheme, the method comprises the steps of: (1) taking 25000g of medium-gluten wheat flour, 10500g of water, 5000g of sourdough and 35g of edible alkali, mixing the substances evenly and conducting kneading to obtain a fermented dough; (2) putting the fermented dough into an automatic flour pressing machine to conduct pressing 9 times; (3) then making the product enter an automatic forming machine, and performing rolling forming to obtain a 125g round dough; (4) then bringing the dough into a fermenting box with a temperature parameter set at 38DEG C and humidity of 65%, and conducting fermentation for 30min; and (5) then carrying out steaming for 30min under a steam pressure controlled at 0.4pa. The method provided by the invention combines the traditional sourdough fermentation technology with the modern rolling technology, does not involve any additive, and cause no harm to the body. The sourdough fermented steamed bun has strong flour fragrance and rich nutrition, the dough leavening process of steamed buns is fully excavated, and no nutritional ingredient is lost.

The invention provides backflow water washing equipment which is low in cost and has a good using effect. According to the technical scheme, the equipment comprises a water spraying system, an air sucking system, a serial tank body and a circulating system, wherein the water spraying system mainly comprises water spraying plates (1) and lifting pumps (3), and each water spraying plate (1) is provided with a water spraying nozzle (2) of which the water spraying angle can be adjusted; the air sucking system mainly comprises air sucking plates (4) and air channels (5), and each air sucking plate (4) is provided with an air sucking hole; the serial tank body mainly comprises a plurality of washing tanks (6) formed by a plurality of clapboards (7), and water flowing openings (11) at different heights are formed in the clapboards (7); the circulating system mainly comprises a circulating pipe (8), a liquid sucking pump (10) and a plating tank (9); and the air sucking system and the water spraying system are fixed on the edges of the washing tanks (6) respectively. The equipment has a simple structure and is safe and reliable, and the force and the cleanliness of water washing are enhanced; and simultaneously, a serial circulating washing process is realized to achieve the effect of zero emission of washing fluid, so that the environment is greatly protected, and raw and auxiliary materials are greatly saved.

The invention provides a tire tread prescription of an ultra-wearproof graphene material for a full steel tire. The tire tread prescription adopts the technical scheme that the tire tread prescription comprises 1.5 to 2.5 parts of graphene, 80 parts of natural rubber, 10 parts of polybutadiene rubber, 10 parts of butadiene-styrene rubber, and 45 to 55 parts of carbon black. The tire tread prescription is used for preparing a tire crown (1). The tire tread prescription is specifically characterized in that the tire crown (1) is arranged on a steel wire part of a bundle layer, a tire side (2) is connected with a rubber core (3), and the rubber core (3) is connected with a steel wire ring (4). The tire tread prescription has the beneficial effects that the design is reasonable and practical; the wearproof property of the traditional tire crown prescription is improved; the ultra-wearproof property is excellent; the total service life of the tire is greatly prolonged; the tire tread prescription is suitable for being popularized and applied.

The invention discloses an Eu < 2 + >-doped blue-light fluorescent material, a preparation method thereof and a white-light LED light-emitting device, and belongs to the technical field of light-emitting materials. The chemical composition formula of the red phosphor is RbBaBP2O8: xEu < 2 + >, wherein x is more than or equal to 0.01 and less than or equal to 0.10. In addition, the invention also discloses a preparation method of the blue-light fluorescent powder. The novel blue-light fluorescent powder disclosed by the invention is single in phase, excellent in thermal stability, high in luminance, good in temperature quenching characteristic and relatively wide in excitation and emission range, and the fluorescence can be kept at 80.6% of the original intensity at 200 DEG C. The preparation method of the fluorescent powder is simple, easy to operate, pollution-free and cheap in raw materials. A warm white light LED manufactured by combining the blue light fluorescent powder and the existing commercial red light and green light fluorescent powder is high in luminance, good in chemical stability and wide in excitation and emission range. In addition, the blue light fluorescent powder is good in color rendering performance, high in energy conversion rate and good in color temperature uniformity, and can meet the requirements of the lighting field.

The invention discloses a production process for preparing regenerated rubber from oil sludge. The production process comprises the following steps of: (1) treating the oil sludge by taking a sodium p-styrenesulfonate water solution as a cleaning agent and adopting a thermochemical cleaning method, sufficiently depositing, and taking upper crude oil and secondary supernatant as mixed liquor for later use; (2) crushing waste rubber to form rubber powder; (3) reacting the rubber powder and the mixed liquor obtained from the step (1) in the presence of an initiating agent in an activating tank; (4) desulfurizing at high temperature and high pressure; (5) refining desulfurized regenerated rubber to prepare a rubber product. The production process disclosed by the invention can be used for more effectively solving the problem that the oil sludge pollutes soil and environment, changing the wastes into renewable resources and saving the precious energy and a large quantity of funds. The prepared rubber product can reach or be superior to the relative national standard on various mechanical properties, is outstandingly increased in addition value of the oil sludge, can generate huge social and economic benefits, and is suitable for general popularization and use.

The invention discloses an electric oven realizing safety protection. The electric oven comprises an electric oven body, wherein a thermal insulation board is arranged on the outer surface of the electric oven body, the front end of the electric oven body is open, an oven door is mounted in the opening, a cooling tube is arranged on the inner of the oven door, a cooling water tank is arranged on the surface of the top of the electric oven body, the cooling tube is connected with the cooling water tank, a heat dissipation window is arranged on the rear all of the electric oven body, a drive device is mounted on the right side of the heat dissipation window, a control device is arranged on the electric oven body, a temperature sensor is arranged on the left wall of the interior of the electric oven body, the temperature sensor is electrically connected with the control device through a lead, and the drive device is electrically connected with the control device through a lead. The electric oven realizing safety protection is reasonable in design, the problem that the surface of the oven has high temperature and easily scalds people is fully improved, therefore, the safety is high, and the electric oven is suitable for wide popularization for use.

The invention provides a marine operating personnel searching, rescuing and positioning indication beacon, which has good reliability and stability. The invention adopts the technical scheme that: the indication beacon is mainly composed of an antenna, a waterproof outer shell, and a microprocessor, a solid-state memory, a GPS and Beidou integrated positioning unit, a radio communication device, a lamp light indicator, a state display, an oscillator, a power switch, an environment detection switch, a rechargeable battery and a power management power supply module which are installed in the outer shell, wherein the microprocessor is respectively connected with the positioning unit, the radio communication unit, the power switch, the state display and the solid-state memory; and the environment detection switch comprises a plurality of switches which are arranged on the rear surface of the outer shell at the interval about 5cm and a conductive electrode which is electrically connected with the microprocessor. The indication beacon has the advantages of being capable of positioning a person in the whole course, confirming conditions before and after the person falls into water, understanding personal information in detail, bringing convenience for the rescue department to make rescue plans, improving the rescue efficiency, and being good in stability and reliability.

The invention discloses Chinese olive blood-sugar reducing tea, which comprises the following raw materials in part by weight: 1,800 parts of Chinese olive, 250 parts of tea leaves, 30 parts of fragrant solomonseal rhizome, 25 parts of poria, 30 parts of yam, 25 parts of kudzuvine root, 30 parts of hawthorn, 50 parts of astragalus, 30 parts of pilose asiabell root, 30 parts of coastal glehnia root, 30 parts of dwarf lilyturf tuber, 15 parts of oriental waterplantain rhizome, and 30 parts of stevia rebaudiana. In the tea, the Chinese olive matched with the tea leaves is adopted as main raw materials, and the fragrant solomonseal rhizome, the poria, the yam, the kudzuvine root, the hawthorn, the astragalus, the pilose asiabell root, the coastal glehnia root, the dwarf lilyturf tuber, the oriental waterplantain rhizome, the stevia rebaudiana and other Chinese medicinal raw materials are auxiliary materials. The composed auxiliary materials have the effects of inviting body fluid and pacifying thirst, nourishing lung and clearing away the heart-fire, dispersing damp-heat, promoting edema, dispelling blood fat, replenishing qi to invigorate the spleen and the like, and can effectively assist the Chinese olive and the tea leaves to reduce blood sugar and blood fat. The tea is prepared by a pure Chinese medicinal formula, can effectively nourish yin and clear heat, detoxify, promote metabolism, invite body fluid and pacify thirst and reduce blood sugar and blood fat, can effectively prevent complication caused by hyperglycemia and hyperlipidemia, and is suitable for popularization and application.

The invention provides a water quenching thermal treatment adjustable device of a steel cord brass electroplating operation line. The device has the advantages of simple structure, low cost, convenience and adjustability. The technical scheme provided by the invention is that the lower end in a water bath (1) is provided with a guide rail (2), wherein the bottom of a movable working tank (3) is provided with rollers (10); the rollers (10) are positioned on the guide rail (2); and a liquid lifting device (5), an end plate (9) and an adjusting tank (6) are arranged in the movable working tank (3) and a fixed working tank (4) respectively. According to the device, the defects of lead quenching are overcome, the problem of non-adjustable water quenching parameter is further solved, the structural design is rational and practical, the time is saved, the labor intensity is relieved, and the product quality is improved; and the device is more suitable for popularization.

The invention discloses a loosening-preventing and automatic-fastening device of connection bolts for combination and fixation of storage batteries. According to the loosening-preventing and automatic-fastening device, a ratchet sleeve is arranged on the front side of a fixed connection handle, a ratchet is arranged inside the ratchet sleeve, fixed inner teeth are arranged on the inner side of the ratchet, ratchet teeth are arranged on the outer circumference of the ratchet, receding stopping grooves are formed in the inner side of the ratchet sleeve, receding stopping springs are arranged in the receding stopping grooves, a receding stopping pin is arranged on the front side of each receding stopping spring, a fixed clamping base is arranged on the rear side of the fixed connection handle, and a tension spring is arranged on the upper side of the fixed clamping base. When copper connection bars of a storage battery pack are twisted slightly, and alternatively vibration is produced due to environmental factors, the ratchet teeth prevent the bolts from moving in the loosening direction under the action of the receding stopping pins, the bolts are pushed to rotate in the fastening direction, and the function of automatically fastening the bolts is achieved.

The present invention provides a rotifer high-density culture method including a technical scheme: seawater chlorella pyrenoidosa is used to feed rotifers with a seawater chlorella pyrenoidosa liquid concentration thrown into water body, namely a precipitation rate, of 20%-25%, a culture water body of 1500 L, a pH value controlled at 6.5-8, a dissolved oxygen concentration controlled at 3-25 mg / L, a water temperature controlled at 20-36 DEG C, and a salinity controlled at 19-30%. The control method of throwing the seawater chlorella pyrenoidosa into the water body is that intestine and stomach changes of the seawater chlorella pyrenoidosa are observed under a microscope in order to determine the application amount of the seawater chlorella pyrenoidosa. The PH value is adjusted with sodium bicarbonate or acetic acid, medium warming is performed in a circulating water way. Excretion of rotifers and residual baits are removed with hanging cloth. The culture method is reasonable and practical in design and time-saving and labor-saving. The cultured rotifer individuals are healthy and strong; and the culture method improves production efficiency and economic benefits of enterprises, and is suitable for general promotion and use.