414results about How to "Avoid Contaminated Situations" patented technology

The invention belongs to the field of soil conditioning methods, in particular to a prescription and preparation method of an acidified soil conditioner. The method comprises the following steps of: proportionally stirring and mixing vegetable oil waste, such as waste activated clay, soybean meal and the like, with a potassium hydroxide solution, and regulating the pH value of the materials to be 8-12; then, indirectly heating and stirring the obtained materials to obtain an organic and inorganic alkaline mixture; and finally, dewatering and drying the obtained mixture to obtain organic and inorganic mixed soil conditioner powder. By means of the acidified soil conditioner provided by the invention, the soil acidification problem and other types of acidification problems caused by using chemical fertilizers in old orchards and old vegetable gardens for years are effectively solved, and the situations of resource waste and environment pollution due to the landfill of the waste activated clay are avoided.

The invention discloses a preparation method of a catalyst for preparing propylene by virtue of propane dehydrogenation. The catalyst comprises an aluminum oxide carrier and active components with the following contents in percentage by mass calculated based on the carrier: 1-3% of calcium silicate salt, 1-3% of cerium oxide, 0.1-2.0% of a platinum group metal, 0.5-5.0% of potassium, 0.2-5.0% of cerium or samarium, 0.3-10% of halogen, 1-5% of a pore forming agent and the balance of impurities, wherein the molar ratio of cerium or samarium to the platinum group metal is 7:8; the platinum group metal is platinum; and halogen is chlorine. The preparation method comprises the following steps: soaking, drying and roasting the aluminum oxide carrier by using a soluble compound solution of cerium or samarium and a calcium silicate salt solution, then soaking, drying and roasting by using a solution containing compounds of the platinum group metal and hydrogen halide, and then soaking, drying and roasting by using a potassium salt solution; and then mixing cerium oxide and the pore forming agent with corresponding amounts, and roasting for 3 hours at 600 DEG C to obtain the catalyst for preparing propylene by virtue of propane dehydrogenation.

The invention relates to a fiber impregnation system. The fiber impregnation system comprises a fiber impregnation box (110) and a driving pump (120) connected with the fiber impregnation box (110) by one or more refluxing hoses (122), wherein the refluxing hoses (122-1, 122-2 and 122-3) are used for recycling resin from the fiber impregnation box and refilling the fiber impregnation box with the resin under the driving action of the driving pump; and preferentially, the driving pump (120) is a peristaltic pump or a diaphragm pump. Besides, the invention also relates to equipment for performing pultrusion on fibers (100) to obtain a section material (200) by use of the fiber impregnation box. According to the fiber impregnation system, the fiber impregnation box and the peristaltic pump provided with at least one pump head are combined, and the quantity of pumps, pump heads and pipelines is increased as required by production and processing, thus, the fiber impregnation box is not required to be closely connected with a corresponding molding and solidifying device, and a yarn guiding plate can be arranged in the fiber impregnation box; and the fiber impregnation box and the corresponding molding and solidifying device can be separable and vacuumizing operation is carried out, and thus, the fiber exhaust efficiency is improved.

The invention discloses a biological treatment method for waste mud in petroleum and natural gas exploration drilling work, which is characterized by comprising the following steps of: a, forming a microbial treatment layer, namely inoculating special microbial strains to the waste mud in a weight ratio of 3-5: 100, mixing the strains and the waste mud uniformly, stirring the mixture and natural soil with water content of 10 to 10 percent and grain diameter of less than 0.5 centimeter uniformly according to the density condition of the waste mud in a following mode to form the microbial treatment layer, adding the natural soil in an amount which is 2.5 to 3 times that of the waste mud into the waste mud with density of 1 to 1.5kg/L, adding the natural soil in an amount which is 2 to 2.5 times that of the waste mud into the waste mud with density of 1.5 to 2.5kg/L, and controlling the water content of the microbial treatment layer to be between 25 and 30 percent; b, treating the soil; and c, treating plants. The method can solve the technical problem that effusion enters underground water to pollute a water source because the natural soil with high water content and large grain diameter is easily scoured by hard rain under the condition that pollutants in a pretreatment mixture are not yet effectively degraded in the prior art.

The invention discloses an alkaline earth metal saponification and extraction method of an acidic extractant. In the method, a saponification reaction is performed on alkaline earth metal oxides, hydroxides or carbonates directly to obtain an alkaline earth metal saponification salt of the acidic extractant and water; saponification water only contains a very small amount of saponifying agent residue and a very small amount of spent acid; clarified saponification water is recycled; and after recovering a small amount of organic phase, redundant saponification water can be discharged after being neutralized and filtered. The method not only realizes the direct saponification of the acidic extractant by using the low-cost and easily-obtained alkaline earth metal oxides, hydroxides or carbonates, but also solves the problems of consuming chemical raw materials such as a chloride, an ammonium salt and the like and generating harmful waste water in the prior art and simultaneously solves the problem of environmental pollution caused by ammonia nitrogen or high cost for treating ammonia nitrogen pollutants. In the extraction method, saponated alkaline earth metal ions are eluted by adopting an extraction raffinate, so the situation that the extraction raffinate is polluted by alkaline earth metal elements is avoided.

The invention discloses a formaldehyde absorbing particles for an air purifier and a preparation method of the formaldehyde absorbing particles. The preparation method comprises the following steps: mixing high chlorinated polyethylene and ethidene diamine in a mass ratio of 1:5 and stirring to react; then, washing a reaction product by distilled water; then washing the reaction product by ethanol until the lotion is colorless and transparent; filtering, drying the filter residues and grinding into powder; uniformly mixing the powder and diatomite in a mass ratio of 1:(3-8); and granulating the powder until the particle diameter of particles is 2-3mm, so as to obtain the formaldehyde absorbing particles for the air purifier. The formaldehyde absorbing particles disclosed by the invention have relatively high porosity and specific surface area and formaldehyde in air passing through a filter screen is conveniently contacted with the surfaces of the particles, so that formaldehyde absorbing reaction is facilitated and an aminated polymer in the formaldehyde absorbing particles for the air purifier can form stable Mannich base by virtue of chemical action, so that the concentration of formaldehyde is effectively reduced, and the pollution caused by secondary release is avoided; and the cost is low.

The invention discloses an adjustable ampoule bottle opening device. The adjustable ampoule bottle opening device comprises a rotating cylinder and a cutting cylinder, wherein the rotating cylinder and the cutting cylinder are of hollow cylinder structures, a first adjusting block is arranged at the lower end of the rotating cylinder, a rubber pad is arranged at the upper end of the first adjusting block, a sliding groove is formed in the side wall of the rotating cylinder, a sliding block is arranged in the sliding groove, a first spring is arranged at the front end of the sliding block, a clamping block is arranged at the front end of the first spring, an adjusting bolt is further arranged on the side face of the rotating cylinder, a connecting rod is fixed to the front end of an adjusting bolt, a clamping joint is arranged at the front end of the connecting rod, a clamping sleeve is clamped on the clamping joint, a first push rod is arranged on the side face of the lower end of thecutting cylinder, a grinding wheel is arranged at one end of the first push rod, a first pressing cap is arranged at the other end of a second pressing cap, a second spring is arranged on the first pressing cap, a second adjusting block is arranged at the upper end of the cutting cylinder, a second push rod is arranged in the middle of the second adjusting block, a rubber chuck is arranged at thelower end of the second push rod, the second pressing cap is arranged at the upper end of the second push rod, and a third spring is fixed at the lower end of the second pressing cap. According to theadjustable ampoule bottle opening device, the bottle opening of the ampoule bottles with different sizes can be realized, and the situation of scratch accidents and liquid medicine pollution can be effectively avoided.

The invention discloses a grains airing koji-adding device. The device comprises a controller and a feeder rack, wherein a feeder hopper is arranged in the feeder rack, the position, corresponding to the feeder hopper, on the lower part of the feeder rack is provided with a feeder chain plate driven by a driving device, a vertical feeder partition plate is arranged between the feeder hopper and the feeder chain plate, one end of the feeder chain plate is connected with an airing machine chain plate on an air airing machine rack, a plurality of round holes are formed on the airing machine chain plate, two sides of the airing machine chain plate are provided with airing machine protective plates, and an air room is formed among the airing machine protective plates, the airing machine rack and the airing machine chain plate; the side of the air room is provided with a centrifugal fan communicated with the internal of the air room. Through the adoption of the grains airng koji-adding device, the mechanical automatic problem of the production equipment in the airing and koji-adding process of the white wine brewing process is solved.

The invention provides a control method and device of a composite braking system and an electric vehicle. The composite braking system comprises an electromechanical braking system and a regenerativebraking system, the electromechanical braking system is used for forming basic braking torque, the regenerative braking system is used for forming regenerative braking torque, and the control method comprises the steps that a braking signal is obtained, and the required braking torque is calculated according to the braking signal; judging whether an anti-lock braking system is triggered or not; ifyes, distributing a basic braking torque and a regenerative braking torque according to the required braking torque and the anti-lock braking working condition; and controlling the electromechanicalbraking system to form a basic braking torque, and controlling the regenerative braking system to form a regenerative braking torque. According to the method, the cooperative braking function of the regenerative braking system and the electromechanical braking system can be provided for the electric vehicle, the regenerative braking system is fully utilized to recover energy within the full working condition range of the electric vehicle, and the endurance mileage of the electric vehicle is increased.

The invention provides metal pipe outer wall rust removing and cleaning equipment. The metal pipe outer wall rust removing and cleaning equipment comprises a workbench, a first motor, moving screw rods, a connecting rod, a second motor, a driving shaft, a liquid storage box, a nozzle, a transverse screw rod, a liquid collecting box, a second-stage filter plate and a first-stage filter plate. The first motor is installed on the workbench. The two sets of moving screw rods are installed in two sets of groove bodies correspondingly and are connected through the connecting rod. The second motor is installed on a first base. The left end of the driving shaft is connected with the second motor. The right end of the driving shaft is connected with a first clamping device. A screw rod groove is formed in the upper end surface of the workbench. The transverse screw rod is installed in the screw rod groove. The liquid storage box is assembled on the transverse screw rod. The nozzle is assembled on the liquid storage box. The liquid collecting box is installed on the lower end surface of the workbench. The first-stage filter plate is assembled in the liquid collecting box. The metal pipe outer wall rust removing and cleaning equipment is simple in structure, convenient to operate, savable in energy, environmentally friendly, good in rust removing effect and high in reliability.

The invention discloses a micro-fluidic-technique-based living cell culture device which comprises a micro-fluidic culture chip set, a rotary joint, a rotary motor, a micromanipulation module and a fluidic pump, wherein the rotary joint is in butt joint with the bottom the micro-fluidic culture chip set, the rotary motor is arranged below the rotary joint, a rotary shaft is arranged on the rotary motor, the rotary shaft penetrates through and extends out of the rotary joint, the rotary motor is fixedly connected with the micro-fluidic culture chip set through the rotary shaft, the micromanipulation module is connected with the micro-fluidic culture chip set, and the fluidic pump is communicated with the micro-fluidic culture chip set by virtue of the rotary joint. The device disclosed by the invention can be used for simultaneously carrying out in vitro sequential culture of tens of cells/embryos and micro-intervening operation on the surrounding environment of a target and the living body.

The invention discloses a portable thermal-insulation cup, and belongs to the technical field of articles of daily use. The portable thermal-insulation cup comprises a cup body, an inner cup lid, an outer cup lid, a locking device, a detection device, a base, an infrared sensing switch and a controller; the cup body is internally provided with an inner cavity, the inner cup lid is arranged at the upper portion of the cup body, and the outer cup lid is hinged to the upper portion of the inner cup lid, and is provided with a first lug which is matched with the locking device to lock the outer cup lid; the locking device comprises a second lug, a pressing rod, an electromagnet, an elastic part and a second overturn shaft; the detection device is inset at the upper edge of the inner cup lid; the base is arranged at the bottom of the cup body, and is provided with an electric appliance mounting cavity; the infrared sensing switch is arranged at the outer circumference surface of the base; the controller is arranged in the electric appliance mounting cavity. According to the portable thermal-insulation cup, automatic opening and locking of the outer cup lid are achieved, and the problem that the cup opening is easily contaminated when a lid of a traditional thermal-insulation cup needs to be unscrewed with hands is solved.

The invention relates to a device and a method for purifying, deoxidizing and decarbonizing internal generator cooling water. The device provided by the invention comprises an internal generator cooling water purifying unit and a two-stage membrane deoxidizing and decarbonizing unit, wherein the internal cooling water purifying unit is composed of an RNa type cation exchange tower, an RH type cation exchange tower, a first ROH type anion exchange tower, a second ROH type anion exchange tower, a precise resin trap, a flow regulation and control system and a water quality monitoring system; the two-stage membrane deoxidizing and decarbonizing unit is composed of an intermediate water tank, a circulating water pump, a compressed inert gas system, a gas-liquid membrane two-stage separation system, a gas monitoring system and a booster water pump. The device and the method provided by the invention are used for directly or indirectly and comprehensively regulating and controlling such indexes of internal cooling water as pH value, conductivity, copper content, dissolved oxygen and the like so as to prevent the corrosion of a generator copper conductor and ensure the safe and stable operation of a generating set.

Disclosed is a toothed disc type bottle cap detection device. The device includes a tray. A bottle cap limit toothed disc is arranged on the tray. Bottle cap positioning notches are evenly arranged inthe outer side of the bottle cap limit toothed disc. The bottle cap limit toothed disc can axially rotate on the tray. A bottle cap input opening is arranged in one side of the tray. A control systemis arranged above the tray. Air blowing nozzles are connected to the control system. Discharging openings are arranged in the outer side of the tray. The air blowing nozzles are arranged in the directions of the discharging openings. The structure is adopted to detect bottle caps and remove the unqualified bottle caps. Meanwhile, compared with the prior art, the toothed disc type bottle cap detection device provides more hygienic detection environment, ensures the sanitation of the bottle cap detection on the premise that the detection operation can be completed. Moreover, the structure of the device is simplified, and the equipment manufacturing cost is greatly reduced.

The invention relates to a recovery device of an environment-friendly cable. The recovery device comprises a first cable inlet component, a second cable inlet component, a core skin separation part, acrushing cavity, a heating furnace, a flue gas treatment device and a magnetic separation device. All the devices are specifically arranged, so that the complete environment-friendly cable and the crushed environment-friendly cable and the mixture mixed with the common cable are aligned and integrated, then the outer skins and the core materials are separated, the core materials are collected, the skins are classified and separated, and then different treatment is carried out respectively, so that the complete comprehensive recovery treatment of the environment-friendly cables is realized, and the overall utilization rate of resources is greatly improved.

The invention discloses a multifunctional full-automatic pet feeder and a quantity control feeding method. The multifunctional full-automatic pet feeder comprises a rectangular body, a power supply, asingle chip microcomputer control system, a water feeding device, a feeding device, an infrared sensor and a control panel, the infrared sensor and the control panel are mounted on the front surfaceof the body and electrically connected with the single chip microcomputer control system, the power supply and the single chip microcomputer control system are mounted inside the body, and the water feeding device and the feeding device are arranged on the left side and the right side of the body. Grains are recycled and purified by the water feeding device and the feeding device, can be stored for a longer time and can be released and used next time. By the aid of the quantity control feeding method, the feeding quantity of the feeder can be automatically adjusted according to the appetite ofpets in different periods, the feeding quantity of the pets in each time is the most reasonable, and waste of the grains is prevented.

The invention discloses a high-temperature regeneration device of a particle trapping device. The high-temperature regeneration device of the particle trapping device comprises a furnace body with a heating cavity, a heating assembly located in the heating cavity, a gas supply assembly for supplying gas to the heating cavity and a control unit for controlling the gas supply of the gas supply assembly, wherein the heating cavity is provided with a gas inlet and a gas outlet; the gas supply assembly communicates with the gas inlet; a waste gas purification device is arranged at the gas outlet; the waste gas purification device comprises an oxygen supply assembly located outside the furnace body and a preheating pipeline; one end of the preheating pipeline communicates with the oxygen supply assembly; the other end of the preheating pipeline extends into the heating cavity and extends to the gas outlet; and the gas outlet is provided with an ignition device. By arranging the waste gas treatment device, oxygen is mixed with waste gas generated by the heating cavity, and then the mixture is ignited again through the ignition device, so that harmful gas, especially CO, in the waste gas is fully combusted, the waste gas is further purified, and the cleanliness of exhausted gas is improved.

The invention discloses a formaldehyde absorption device capable of automatically replacing a filter element. The formaldehyde absorption device comprises a box body; an air inlet channel with a forward opening is formed in the box body; a transfer cavity with a forward opening is formed in the rear end wall of the air inlet channel; a recovery cavity with an upward opening is formed in the lowerside of the transfer cavity; a right sealing cavity with a backward opening and a left sealing cavity with a forward opening are respectively formed in the front end wall and the rear end wall of therecovery cavity; the filter element can be automatically replaced, manual replacement is avoided, meanwhile, the use of the filter element can be maximized, resources are saved, the replaced filter element can be recycled, direct contact of a user is avoided, and the probability that the user is polluted is reduced.

The invention discloses an energy-saving environment-friendly circulation type waste gas treatment method applied to a paint spraying and paint baking process. The method comprises the steps of paintspraying stage waste gas treatment, levelling stage waste gas treatment and drying stage waste gas treatment; during the drying stage waste gas treatment, after the levelling is completed, the operation enters the drying stage; waste gas in a drying chamber is taken away by gas exchange equipment; the taken waste gas is filtered and dried; the treated waste gas flows back into the drying chamber to form circulation airflow; when the concentration of organic volatile gas is high, and is lower than the lower explosive limit by 25 percent, a small part of high-concentration waste gas is extractedfrom the circulation airflow; heating and low-temperature catalytic oxidation are performed to form high-temperature combustion waste gas; after the high-temperature combustion waste gas and most circulation airflow are subjected to heat exchange, freeze drying and adsorption are performed; the waste gas is exhausted into atmosphere after reaching the standard. After the method is used, the wastegas can be thoroughly treated as much as possible; the discharging total quantity is reduced to the greatest degree; the resource utilization rate is improved; the effects of energy saving and environment protection are really achieved.

The invention discloses a straight pipeline liquid taking-out device. The straight pipeline liquid taking-out device comprises a main body, a puncture liquid-discharging part, a needle cylinder part and a blood bag pipeline bearing part; the main body is internally hollow, the puncture liquid-discharging part is arranged at one end of the main body and can slide relative to the main body, the needle cylinder part is fixedly arranged at the other end of the main body, the blood bag pipeline bearing part is movably arranged in the main body, the puncture liquid-discharging part is provided witha first puncture needle, and the needle cylinder part is provided with a second puncture needle. A liquid taking-out method comprises the following steps that S1, a blood bag pipeline loaded with to-be-taken-out liquid is fixed; S2, the two ends of the blood bag pipeline are punctured; S3, air is blown into the blood bag pipeline from one end of the blood bag pipeline; and S4, the to-be-taken-outliquid flows out from the other end of the blood bag pipeline. The structure is simple, operation is also very convenient, excessive financial burden is avoided even if single use, and thus the situation of liquid pollution due to repeated use is avoided.

The invention provides a de-oxidant seal bottle. When a bottle cap is snapped at a bottle opening, a downward drawing force can be formed to extrude and attached the edge of a seal pad on the bottle cap to the bottle opening of a bottle body, and the upper end of a seal strut of the seal pad is promoted to be embedded in a vertical extension section of a second ventilation through hole in the capsule wall of the top of the seal pad to seal the second ventilation through hole. A snapping ring is withdrawn from a protrusion portion of the bottle body and is held to lift a stretching portion of the bottle cap upwards to enable the bottle cap to rotate upwards around the connection mounting portion, the upper end of the seal strut can be pulled out of the second ventilation through hole, and accordingly, the seal effect is lost, the acting force for 'absorbing' the bottle cap due to the atmospheric pressure difference in and out of the bottle disappears along with the losing of the sealing effect, and the bottle cap of the seal bottle can be opened easily. By means of the seal bottle, the problems that frosted-opening glass bottles, wood-cork glass bottles and the like are inconvenient to save and use when being used for storing de-oxidants in the prior art are well solved.

The gas burning wall hanged furnace as one improved small household gas-burning boiler features its control system, which has temperature detector, flame detector, water flow detector and alarm connected to the CPU to provide input signal, and circulating water pump, exhaust controller, igniter and solenoid valve connected to the CPU to receive output signal; the heat exchanger, which is connected to water pump, plate heat exchanger, water return pipe, T-valve, water outlet pipe and automatic air exhaust valve; and the plate heat exchanger with connected water inlet pipe and water outlet pipe for domestic water. The present invention has the advantages of microcomputer control, simple operation, and separation between domestic water and heating water.