5434results about "Mixers" patented technology

The invention discloses a device and a method for producing oxamide, and relates to the field of chemical production. The method for producing oxamide specifically comprises the following steps: mixing a methanol solution of liquid ammonia and a methanol solution of dimethyl oxalate, carrying out ammonolysis reaction, carrying out flash evaporation, filtration and drying on first slurry obtained after the reaction is finished to obtain solid oxamide, and refining a liquid phase obtained by solid-liquid separation of the first slurry to obtain a byproduct methanol, ammonia in the tail gas is washed and absorbed by dimethyl oxalate and then returns to a reaction system. In the oxamide production process, dimethyl oxalate reacts with ammonia gas in mixed gas generated in the reaction process, and the obtained product is continuously subjected to subsequent ammonolysis reaction, so that the utilization rate of reaction materials is increased; meanwhile, a condenser is not used for condensing ammonia gas and methanol and then separating alcohol and ammonia, so that condensing equipment and cooling water are saved, the production cost is reduced, and industrial production is facilitated.

The invention belongs to the technical field of waste gas desulfurization, and particularly relates to an efficient mass transfer desulfurization tower which comprises a desulfurization tower body, a gas inlet pipe and a gas exhaust pipe, the gas inlet pipe is communicated with the bottom of one side of the desulfurization tower body, the gas exhaust pipe is communicated with the top of the other side of the desulfurization tower body, and a slurry pond is arranged at the bottom of the desulfurization tower body. A gas flow transmission power mechanism, a dynamic mass transfer synergistic mechanism, an atomization spraying mechanism and a demister are respectively arranged in the desulfurization tower from bottom to top, and a compression gas injection forced oxidation mechanism is arranged on the desulfurization tower; the waste gas kinetic energy is converted into mechanical energy, compressed injection of air is achieved through linkage gear transmission, calcium sulfite is forcibly oxidized into calcium sulfate, resource utilization of desulfurization products is achieved, and in the limited space of the desulfurization tower, sulfur-containing waste gas rises in a rotational flow mode and collides with atomized slurry at a high speed, the slurry is cut up, and gas waves continuously collide with one another to conduct rotary cutting. Liquid particles are crushed to be finer and thinner, and gas and liquid are fully mixed, so that the desulfurization efficiency is improved.

The invention relates to the technical field of screening, and discloses an iron ore powder and antifreezing agent mixed screening device which comprises a rack, and the surface where the top of the rack is located is inclined; a first bearing seat is mounted on the rack, a roller with a rubber wheel surface is rotationally connected to the first bearing seat, a universal coupling is connected to the shaft end of the roller, a shaft rod is connected to the other end of the universal coupling, a speed reducer arranged on a second supporting seat is connected to the free end of the shaft rod, and the second supporting seat is connected with the rack; the speed reducer is driven by a first motor arranged on the rack, and the first motor and the speed reducer transmit power through belt transmission; a drum screen assembly used for improving the mixing uniformity of the iron ore powder and the anti-freezing agent is connected to the rolling wheel in a rolling mode, and mixed materials are discharged from screen holes of the drum screen assembly. Mixing, screening, conveying and cleaning are integrated, mixing uniformity is high, screening efficiency is excellent, operation and maintenance are convenient and fast, and the requirement for mixing and screening of iron ore powder and an anti-freezing agent is met.

The invention discloses a process and a device for producing oxamide, and relates to the field of chemical production. The invention provides a process for producing oxamide, which specifically comprises the following steps: mixing a methanol solution of liquid ammonia and a methanol solution of dimethyl oxalate, carrying out ammonolysis reaction, carrying out flash evaporation, filtration and drying on first slurry after the reaction is finished to obtain solid oxamide, and carrying out liquid phase refining to obtain a byproduct methanol, ammonia in the tail gas is washed and absorbed by dimethyl oxalate and then returns to a reaction system. The methanol solution of dimethyl oxalate is used for absorbing excessive ammonia in the reaction process, and the reaction product is continuously used for producing oxamide, so that methanol and ammonia can be thoroughly separated, the conversion rate of ammonia can be greatly improved, and the economical efficiency of the production process is improved; meanwhile, tail gas containing ammonia is not discharged, and the environmental protection property of the production process is improved.

The invention discloses a high-efficiency multiphase flow classification and separation integrated treatment method for argillaceous sandstone uranium ore. The crushed argillaceous sandstone uranium ore mixed material is sequentially subjected to hydraulic polishing and cluster breaking treatment, high-frequency linear vibration grading treatment, first-stage multiphase flow rotational flow grading treatment, deep low-frequency efficient ultrasonic scrubbing treatment, second-stage multiphase flow rotational flow grading treatment, jet flow uniform mixing treatment, micro-current activating treatment, hardening and tempering thickening and efficient squeezing solid-liquid separation treatment. According to the invention, mud and sand deep stripping and material fine grading separation of the crushed argillaceous sandstone uranium ore are realized, meanwhile, the fine-particle argillaceous material is subjected to efficient uniform mixing activation and deep efficient dehydration, and four core materials, namely a coarse sand material, a fine sand material, tailing dry slag and a high-concentration uranium ore leaching solution, are finally formed through continuous work; finally, efficient multi-phase flow fractional separation, concentration and purification treatment of the argillaceous sandstone uranium ore is achieved, residues of uranium elements in tailings are reduced, and the deep extraction rate of uranium ore resources is increased.

The invention relates to the technical field of waste gas treatment, and discloses a washing tower for waste gas treatment, which comprises an annular water tank, a tower body, a communicating pipe, a spiral cylinder, a water pump, a rotary dispersion device, two spiral mixing devices, a spraying purification device and the like, the upper end of the communicating pipe is communicated with the tower body, and the lower end of the communicating pipe is communicated with the annular water tank; the water pump is fixedly connected with the inner wall of the bottom of the annular water tank, the rotary dispersing device is connected with the tower body and the annular water tank, the two spiral mixing devices are connected with the two spiral cylinders respectively and connected with the rotary dispersing device, and the spraying purifying device is connected with the tower body and connected with the two spiral mixing devices respectively. By arranging the spiral cylinder, the spiral roller, the first rotating shaft, the air pump and other structures, the waste gas can be sucked into the spiral cylinder after being sprayed and purified, the waste gas and the washing liquid are mixed again through the spiral roller, the waste gas and the washing liquid react again, and the waste gas washing and purifying efficiency is improved.

The invention discloses an ultra-aeration air flotation system and an implementation method thereof, and belongs to the technical field of wet-process phosphoric acid production, and the ultra-aeration air flotation system comprises a reaction tank, an inclined guide plate arranged on the inner wall of the reaction tank, a dish-shaped tank which is arranged at the bottom of the reaction tank and is annularly arranged around the center of the reaction tank, and a central island which is formed by protruding the inner ring part of the dish-shaped tank at the bottom of the reaction tank, the aeration mechanism is arranged on the central island and is communicated with the outside through a pipeline; the transmission mechanism is arranged above the reaction tank; the central transmission rod is connected with the output end of the transmission mechanism and is arranged along the axis of the reaction tank; the dynamic settler is arranged at the upper part in the reaction tank and is connected with the central transmission rod; and the overflow port is matched with the dynamic settler. The inclined guide plate, the dish-shaped aeration structure and the dynamic settler are integrally arranged in the reaction tank, so that the super-aeration uniformity, the foam separation capacity, the phosphoric acid purification and the liquid vortex intensity in the wet-process phosphoric acid production process are remarkably enhanced, and the reaction efficiency and the product quality are improved.

The utility model discloses a kitchen garbage disposer, relates to garbage disposal technical field, including crushing device and waste gas treatment device, the waste gas treatment device includes purification box and filter, the purification box is used for cooling and / or purifying the waste gas, the filter is used for filtering the waste gas. According to the waste gas treatment device provided by the utility model, the purification box and the filter are combined with each other, so that waste gas generated by kitchen garbage can be cooled, purified and filtered, the treatment modes are abundant, the treatment effect is good, and the defects in the prior art can be effectively overcome.

The invention belongs to the technical field of micro-reaction, and particularly relates to a micro-mixer and a method for continuously preparing nano cooling liquid. Comprising a reaction cavity in which a plurality of reaction flow channels are arranged, all the reaction flow channels are used for preparing nano cooling liquid and are vertically arranged in the reaction cavity in a three-dimensional spiral shape, and each reaction flow channel is internally provided with a plurality of disturbance structures and a plurality of distributors which are arranged in the reaction cavity and located above all the reaction flow channels, each distributor is connected with the inlets of all the reaction flow channels, the collectors are arranged at the outlets of all the reaction flow channels, and pressure regulating structures are arranged in the collectors. According to the invention, the distributor is adopted to enable the reaction fluid to flow into the corresponding reaction flow channel, the three-dimensional spiral flow channel design in the reaction cavity is folded in space, so that the overall size of the microreactor is not too large, and a disturbance structure is arranged in each reaction flow channel, so that the mixing efficiency can be further improved; the production rate of the microreactor is improved, and blockage in a flow channel is avoided.

The detachable reactor comprises a water supply pipe, a communicating pipe and a plurality of barrel sets, each barrel set is formed by splicing a top cover, an upper barrel, an upper grating net, a main barrel, a lower grating net, a lower barrel and a bottom cover, and the bottom cover is connected with a water inlet pipe, a water drainage pipe and a series connection pipe through a first reversing valve; the top cover is provided with a water outlet pipe with a valve and flushing pipes, the water supply pipe is provided with a water supply pump and a box body, the box body is provided with a sewage pipe and a dosing mechanism, the communicating pipe is communicated with the series connection pipes and the flushing pipes and provided with a second reversing valve, inner cavities of the upper cylinder and the lower cylinder are filled with filter materials, and an inner cavity of the main cylinder is filled with catalytic filler. Sewage is filtered and catalytically decomposed by using the filter material and the catalytic filler in the cylinder group, the cylinder group is convenient to disassemble for cleaning and replacement, and series connection, parallel connection and backwashing work of the plurality of cylinder groups can be realized through cooperation of each pipeline and each valve, so that the sewage treatment effect is ensured, and the sewage treatment efficiency is improved.

The invention discloses a lithium hexafluorophosphate crystallization and separation device, and relates to the technical field of lithium hexafluorophosphate crystallization and separation, the lithium hexafluorophosphate crystallization and separation device comprises a fixed seat and support legs symmetrically fixed on the periphery of the bottom of the fixed seat, the interior of the fixed seat is fixedly connected with an outer box body, and the lithium hexafluorophosphate crystallization and separation device further comprises an air inlet, an air outlet and an air outlet, an air outlet is formed in the other side of the top of the outer box body; the liquid outlet is formed in the middle of the bottom of the outer box body; the outer barrel body is installed in the outer box body, an inner barrel body is connected to the interior of the outer barrel body in a clamped mode, and a cleaning brush is installed on the lower portion of the partition plate; the swing mechanism is arranged on one side of the outer barrel; and the cleaning mechanism is arranged below the partition plate, and the problems that a lithium hexafluorophosphate solution in the device is in direct contact with the barrel for a long time, so that the barrel is easily corroded and damaged, and large lithium hexafluorophosphate crystals are still possibly contained in the device during discharging, so that the subsequent smooth discharging of the lithium hexafluorophosphate crystals is inconvenient are solved.

The invention relates to the technical field of agricultural irrigation, and discloses an intelligent agricultural water-saving irrigation and fertilization device which comprises an irrigation box, sliding rails, an irrigation assembly, a self-walking stirring assembly, a scraping and blowing assembly and a cylindrical filter part, the irrigation box is arranged on the two sliding rails, the cylindrical filter part is arranged in the irrigation box, the irrigation assembly is installed on one side of the irrigation box, and the self-walking stirring assembly is installed on the other side of the irrigation box. The spraying device is used for spraying water and fertilizer to crops; the self-walking stirring assembly comprises a rolling wheel, a rod type stirring piece and a driving piece. Water-soluble fertilizer water beads on the surfaces of seedlings are scraped and blown through the scraping and blowing assembly, water-soluble fertilizer attached to the surfaces of leaves and stalks of the seedlings can be effectively removed and shaken off to the bottoms of the seedlings, and therefore waste of the water-soluble fertilizer is reduced, meanwhile, the water-soluble fertilizer can directly act on root systems of the seedlings and is fully absorbed by crops, and the water-soluble fertilizer can be applied to the roots of the seedlings. The utilization rate of the water-soluble fertilizer is increased, and the problem of volatilization of nutritional ingredients caused by strong quick-acting property and short lasting period of the water-soluble fertilizer is reduced.

The invention discloses an efficient multiphase flow fractional separation, concentration and purification treatment system for argillaceous sandstone uranium ore. Comprising a hydraulic polishing and breaking pretreatment device, a high-frequency linear vibration classification device, a first-stage multiphase flow cyclone classification device, an energy-gathered ultrasonic scrubbing device, a second-stage multiphase flow cyclone classification device, a high-frequency linear vibration dehydration device, an efficient uniform mixing activation system and a tempering squeezing dehydration system. According to the invention, mud and sand deep stripping and material fine grading separation of the crushed argillaceous sandstone uranium ore are realized, meanwhile, the fine-particle argillaceous material is subjected to efficient uniform mixing activation and deep efficient dehydration, and four core materials, namely a coarse sand material, a fine sand material, tailing dry slag and a high-concentration uranium ore leaching solution, are finally formed through continuous work; finally, efficient multi-phase flow fractional separation, concentration and purification treatment of the argillaceous sandstone uranium ore is achieved, residues of uranium elements in tailings are reduced, and the deep extraction rate of uranium ore resources is increased.

Disclosed in the present invention are a microfluidic chip and a microfluidic device comprising same. The microfluidic chip comprises a microfluidic substrate, wherein a micro-channel structure is provided on the surface of the microfluidic substrate, and the micro-channel structure sequentially comprises a liquid-intake flow channel, a mixing flow channel and a liquid-output flow channel, which are in communication with each other; a first-stage mixing flow channel and a second-stage mixing flow channel are sequentially provided on the mixing flow channel, and the second-stage mixing flow channel comprises a flow-dividing channel and a flow-converging channel; the flow-dividing channel comprises two flow-dividing portions, which are arranged at an angle, input ends of the two flow-dividing portions are in communication with each other, and an inlet of the second-stage mixing flow channel is formed at the position where the flow-dividing portions are in communication with each other; and the flow-converging channel is arc-shaped, two input ends of the flow-converging channel are respectively in communication with output ends of the two flow-dividing portions, and an outlet of the second-stage mixing flow channel is formed at the most downstream part of the flow-converging channel. By means of sequentially providing two stages of mixing flow channels on the mixing flow channel, a solution that involves dividing a medium and then mixing same by means of frontal counter-collision is provided, such that, by means of a medium collision mixing principle, the degree of mixing is effectively improved and the preparation efficiency is also improved.

The present application relates to a multiphase reactor. The multiphase reactor comprises: a reactor housing in which a reaction cavity is formed, wherein the reactor housing is provided with a second material inlet pipe and first material inlet pipes communicated with the reaction cavity, and the first material inlet pipes are used for conveying a first material to the reaction cavity; a gas distributor located in the reaction cavity, wherein the second material inlet pipe is communicated with the gas distributor, and a second material conveyed by the second material inlet pipe is conveyed to the reaction cavity by means of the gas distributor; and flow guide cylinders located in the reaction cavity, wherein a plurality of ventilation parts are arranged on each flow guide cylinder in the circumferential direction of the reactor housing, and the flow guide cylinders are used for axial drainage and radial cutting in the reaction cavity. The present application solves the technical problems that the reaction efficiency is affected and the material consumption is increased due to uneven distribution of a temperature field and a reaction field in multiphase reactors.

The invention discloses a dissolving and mixing device for adhesive production, the dissolving and mixing device comprises a mixing tank, a crushing assembly, a premixing cylinder, a first stirring assembly and a second stirring assembly, and the crushing assembly can perform preliminary crushing treatment on solid materials and liquid raw materials in the mixing tank before the solid materials and the liquid raw materials are mixed. Part of liquid raw materials can be premixed through the premixing barrel and are diffused out of the premixing barrel through the diffusion holes. The solution in the premixing barrel is stirred through the first stirring assembly in the premixing barrel, and the stirring effect on the solution in the premixing barrel can be enhanced. The first stirring rods on the stirring rods and the second stirring rods on the rotating shaft which are vertically arranged at intervals in a staggered manner can generate mutually superposed stirring forces in the stirring process, so that the stirring strength can be further enhanced, solid powder materials are subjected to stronger shearing and collision effects in the stirring process, and the formation of aggregates and cakes is avoided; the dissolving and mixing efficiency and quality of solid materials and liquid raw materials are improved.

The invention discloses a chicken liver powder conveying system based on a multidirectional pneumatic channel, relates to the technical field of pneumatic conveying, and aims to solve the problems that local accumulation is caused by traditional one-way airflow, and the composite effects of conveying, mixing and drying are difficult to consider. The device comprises a mixing tank and an air inlet pipe, the lower end of the mixing tank is sequentially provided with a lower discharging pipe and a material distributing tank, and the lower end of the material distributing tank is provided with a composite pneumatic channel assembly; on one hand, the conveying-mixing-drying composite effect of chicken liver powder and additive powder is achieved through the multi-direction conveying airflow impact effect, stable feeding in the powder pneumatic conveying process is achieved, and on the other hand, a longitudinal disturbance mechanism is combined to be matched with the intermittent spraying effect; the limitation that the mixed powder is prone to moisture absorption and caking is relieved, the phenomenon of local accumulation or pipeline abrasion is avoided, and continuous and stable conveying can be effectively achieved under the design that the two materials supplement each other.

The invention discloses mechanical fermentation and pile-turning integrated equipment for Pu'er tea. According to the invention, mechanization and cleaning of fermentation of the fermented Pu'er tea can be obviously improved, modern processing of the fermented Pu'er tea is realized, and the current situation of traditional and backward fermentation of the fermented Pu'er tea is changed. According to the scheme, the integrated equipment comprises a ground rail and a second transverse paver, the ground rail and the second transverse paver are arranged in parallel, and storage boxes are arranged in the ground rail and the second transverse paver. Tea leaves can be effectively scattered and mixed through rotation of a turning knife and a second deblocking knife; according to the tea leaf processing device, the tea leaf processing efficiency and quality are improved, the uniformity of the tea leaves is ensured, through control of the first servo motor, the second servo motor, the third servo motor, the fourth servo motor and the fifth servo motor, the automatic processes of scattering, conveying, scattering again, collecting and pile turning of the tea leaves are achieved, manual intervention is reduced, and the working efficiency is improved.

The invention belongs to the technical field of agricultural irrigation devices, particularly relates to an integrated intelligent water and fertilizer integrated device, and aims to solve the problems that an existing device is relatively low in granular fertilizer dissolving efficiency and cannot realize dynamic filtering adjustment of a water body. A water body filtering assembly, a fertilizer conveying all-in-one machine and a water and fertilizer mixing barrel are arranged in the integrated compartment, so that the device is compact in structure and convenient to move, field assembly during use is not needed, and the water and fertilizer mixing device is convenient to use. The maneuverability and the operation convenience of the device can be greatly improved, and during use, the pumped water body is filtered through the water body filtering assembly, and the required fertilizer is quantitatively conveyed through the fertilizer conveying all-in-one machine, so that accurate proportioning and mixing of the water and the fertilizer can be realized, and different use requirements are met.

The invention relates to a sterilization type oxygen absorbent drying, mixing and vacuum packaging integrated system, and relates to the technical field of oxygen absorption master batch production, the sterilization type oxygen absorbent drying, mixing and vacuum packaging integrated system comprises two groups of dryers, a mixing machine, a vacuum generation system, an oil bath circulation system and a nitrogen supply system, the two groups of dryers comprise a first dryer and a second dryer; the dryer comprises a barrel, a swing driving mechanism and two swing shafts, the barrel comprises an inner shell and an outer shell, a heating cavity is formed between the inner shell and the outer shell, each swing shaft is provided with an oil inlet channel and an oil return channel, the outer shell is provided with a guide part in the heating cavity, and a heating channel allowing medium oil to flow is formed among the guide part, the inner shell and the outer shell. The heating channel forms a baffling section at the bottom of the inner shell, and medium oil can flow into the oil return channel along the heating channel and the baffling section. The medium oil flows from bottom to top, so that the medium oil with low temperature and high density is effectively prevented from being accumulated at the bottom of the barrel, materials are dried more uniformly by the medium oil, and the production efficiency of the oxygen absorbent is improved.

The utility model discloses a polyester reverse esterification kettle on-line adding device which comprises a first esterification kettle and a second esterification kettle, a batching pipeline is arranged between the first esterification kettle and the second esterification kettle, and a three-monomer on-line injection system is arranged on one side of the batching pipeline. A second static mixer, a dynamic mixer and a pneumatic valve are sequentially arranged on the batching pipeline between the three-monomer on-line injection system and the second esterification kettle, and materials prepared by the three-monomer preparation system are injected into a connecting pipeline through the three-monomer on-line injection system; and then the mixture enters the second static mixer and the dynamic mixer to be mixed and then is injected into the second esterification kettle through the pneumatic valve. The transformation from production of extinction products to production of cationic products can be quickly realized in the five-kettle process, so that the productivity and the quality of the products are ensured, and benefits are created for enterprises to be maximized.

The invention discloses a lithium battery pole piece dry method manufacturing process and a manufacturing equipment assembly, and the lithium battery pole piece dry method manufacturing process comprises the following steps: a powder material preparation part: mixing raw materials, kneading and fiberizing to form a powder material; the film material preparation part is used for extruding the powder material from a discharging channel to a material receiving surface, a metering gap is formed between the discharging channel and the material receiving surface, and the material receiving surface can move relative to the discharging channel, so that the powder material is spread to the material receiving surface, the powder material on the material receiving surface is rolled, and the powder material is changed into a film material. According to the lithium battery pole piece dry method manufacturing process and the manufacturing equipment assembly, the thickness of a film material can be controlled, the thickness deviation of the film material is reduced, and the influence on the product quality is avoided.

The invention discloses a wastewater degradation and recovery device for white spirit production, and particularly relates to the technical field of wastewater degradation, the wastewater degradation and recovery device comprises a treatment tank and an impurity storage box arranged on one side of the surface of the treatment tank and used for collecting impurities after wastewater treatment, and the other side of the treatment tank is further provided with an input and output assembly; sealing plates for isolating wastewater are arranged on the upper side and the lower side of an inner cavity of the treatment tank respectively, a sealing column is arranged on the opposite surfaces of the two sealing plates, a liquid storage tank is arranged on one side of the sealing plate located on the upper portion, and an air injection stirring assembly is arranged at the bottom of the sealing column. According to the wastewater degradation and recovery device for white spirit production, the mode that large bubbles are directly injected and scattered by a rotary stirring rod to form small bubbles is achieved through the arranged air injection stirring assembly, and meanwhile the injection mechanism is matched for synchronous operation, so that a flocculating agent is rapidly dispersed by means of bubble kinetic energy and the stirring effect, and the flocculation reaction is accelerated; the pollutants can be more quickly coagulated into large-particle flocs, and the wastewater purification efficiency is improved.

The invention discloses mixing and compounding equipment and a compounding process for producing calculus bovis factitius, and relates to the field of mixing equipment. The premixing cavity is formed in the mixing tank, meanwhile, a solution in the mixing tank can be pumped and conveyed into the premixing cavity through the liquid inlet assembly, when solid raw materials are added into the premixing cavity, the rotary driving assembly drives the shearing and mixing assembly to rotate in the premixing cavity, and the solid raw materials are sheared into fine particles; the solid raw materials and the solution are fully mixed and dissolved in the solution, then the premixed solution is conveyed into the mixing tank through the liquid distribution mechanism, and the solid raw materials are sheared and premixed, so that the solid raw materials can be prevented from being bonded into blocks after being added into the mixing tank, and the dissolving and mixing efficiency of the solid raw materials is improved; the dissolved solid raw materials are uniformly distributed in the mixing tank through the liquid distribution holes, so that the mixing efficiency of the solid raw materials and a solution in the mixing tank can be improved, and the mixing and compounding effect and the mixing and compounding efficiency of the mixing and resetting equipment are improved.

The invention provides a special fertilizing device for bio-fertilizer, and belongs to the technical field of fertilizing equipment.The special fertilizing device for bio-fertilizer is provided with two parallel rotary tillage parts which can dig a fertilizing ditch along a set path, a fertilizer bin is used for pouring bacterial fertilizer into the dug fertilizing ditch, and a soil covering part backfills soil on the two sides of the fertilizing ditch to cover the bacterial fertilizer; the two rotary tillage components are coaxially arranged on a rotating shaft, the two rotary tillage components are respectively arranged in the two inclined slides, and the rotating shaft penetrates through the two slides along the width direction of the fertilization ditch; the soil covering part is located on the side, close to the edge of the fertilization ditch, of the second slide, the second slide can convey the soil turned and stirred by the second rotary tillage part to the side, the soil covering part comprises a scraping plate stretching across the fertilization ditch, and when the scraping plate moves forwards, the soil on the side, close to the edge of the fertilization ditch, of the second slide can be backfilled to the upper surface of the soil poured with bacterial manure. The biological fertilizer can be applied more reasonably, so that the fertilizer efficiency is greatly improved.

The invention relates to the field of equipment verification, in particular to a thermostatic bath and a thermostatic method. The constant temperature bath comprises at least one constant temperature bath unit, the magnetic stirrer is rotationally arranged at the inner bottom of the tank body, the cooling fan is arranged at the outer bottom of the tank body, the magnet is arranged on the cooling fan and rotates along with the cooling fan, the semiconductor chilling plate wraps the periphery of the tank body and the periphery of the cooling fan, and the cooling fin is attached to the semiconductor chilling plate. The size of the calorimeter temperature sensor calibrating device is reduced, the operation efficiency and the automation degree are improved, and the temperature can be uniformly controlled.

The invention discloses multifunctional patient oxygen inhalation equipment, and relates to the technical field of medical equipment, the multifunctional patient oxygen inhalation equipment comprises an inhalation bottle body, one side of the inhalation bottle body is connected with an oxygen inhalation tube, a noise reduction mechanism is arranged in the inhalation bottle body, the inhalation bottle body comprises an upper cover body and a lower cover body, the upper cover body and the lower cover body are detachably connected, a first sealing plate is arranged in the upper cover body, and a second sealing plate is arranged in the lower cover body. A second sealing plate is arranged in the lower cover body, air outlets are formed in the two sides of the upper cover body, an air inlet head is integrally formed on the side wall of the upper cover body, a positioning mechanism is arranged between the upper cover body and the lower cover body, an adjusting mechanism is arranged in the first sealing plate, the positioning mechanism is matched with the adjusting mechanism, and rapid positioning of the upper cover body and the lower cover body can be achieved through the positioning mechanism. When positioning is achieved, gas channels between the upper cover body and the lower cover body are rapidly communicated through cooperation of the linkage piece and the annular piece, meanwhile, the situation that when the device is used, using of a patient is affected due to the fact that the sealing plug protrudes outwards is avoided, and the comfort of the patient is improved.

The utility model discloses a swimming pool water treatment doser, which relates to the technical field of swimming pools, and comprises a machine main body and a shell, a dosing component is arranged in the shell, the dosing component comprises a bucket wheel, one side of the bucket wheel is connected with a baffle, and a second stirrer penetrates through the middle of the top of the machine main body. A first stirrer penetrates through the bottom of the second stirrer, and the first stirrer, the second stirrer and the bucket wheel are all sleeved with bevel gears. Through the arrangement of the dosing assembly, the bucket wheel is pushed by water flow to rotate, the bucket wheel drives the baffles to rotate after rotating, and when the baffles do not correspond to the bottom of the chemical storage cavity, chemicals in the chemical storage cavity fall into intervals of the bucket wheel, so that the chemicals are washed by swimming pool water flowing out of the water inlet to be mixed for the first time; when the baffle corresponds to the bottom of the medicine storage cavity, medicine adding is not carried out, and intermittent medicine adding operation is automatically completed; the three steps of water feeding, chemical adding and mixing can be achieved only through a single water pump, the structure is simple, and energy consumption is low.

A method may include receiving a paint formulation, maximum allowable ingredient deviations, and minimum threshold performance metrics. The method may further include determining a plurality of candidate paint formulations within that are modified within the maximum allowable deviations of the received paint formulation. The method may further include inputting the candidate paint formulations into a trained model, which outputs performance metrics of the candidate paint formulations. The model may further include selecting the candidate paint formulations meeting the minimum threshold performance metrics. The method may further include determining a sustainability metric of each selected candidate paint formulation. The method may further include selecting the candidate paint formulation having the highest sustainability metric.