33results about How to "Consistent concentration" patented technology

The invention relates to the technical field of electroplating baths with flow mixing mechanisms, and discloses an electroplating bath with a flow mixing mechanism, the electroplating bath comprises a base and a bath body, a stirring assembly is arranged in the bath body, a heating and cooling assembly is arranged at the middle position of the top of the base, and a cleaning assembly is arranged at the rear position of the top of the base; through the arranged stirring assembly, after a worker pours electroplating liquid into the tank body, a second motor is started to drive a rotating gear to do circular motion on an inner gear of an inner gear ring, stirring blades are driven to stir the electroplating liquid in the tank body, and meanwhile, the worker starts a first motor to drive a threaded rod to rotate; the movable block slides back and forth on the outer walls of the threaded rod and the sliding rod, the stirring piece is driven to mix and stir the electroplating liquid in different areas in the tank body, comprehensive mixing of the electroplating liquid in the whole space of the tank body is achieved, the mixing uniformity of the electroplating liquid is improved, and it is guaranteed that the components and the concentration of the electroplating liquid in the tank body are basically consistent.

The invention provides a high-safety waste lithium battery material recycling device, and belongs to the technical field of waste lithium battery treatment. Comprising a saline water tank, saline water used for discharging a lithium battery body is stored in the saline water tank, the discharging mechanism comprises a gear motor fixed to the side face of the saline water tank, the output end of the gear motor penetrates through the saline water tank and is fixedly provided with a driving disc, the driving disc is located in the saline water tank, and multiple sets of discharging boxes are arranged in the saline water tank; the multiple discharging boxes in the same group are arranged along the axis of the driving disc, and connecting frames are fixed to the sides, close to the gear motor, of the discharging boxes. Through the arrangement of the discharge box, the lithium battery body is placed in the discharge box, the lithium battery body is sealed by the discharge box, and the lithium battery body is prevented from being in contact with saline water, so that subsequent airing or drying treatment is not needed, the recovery treatment process of the lithium battery body is simplified, and the convenience of the recovery treatment work of the lithium battery body is improved.

The embodiment of the invention provides a secondary battery and electric equipment, the secondary battery provided by the embodiment of the invention comprises a roll core and an electrolyte, the roll core comprises a positive pole piece, a diaphragm and a negative pole piece which are stacked in sequence; the mass of the electrolyte which can be accommodated by 0.85-0.95 time of the sum of the pore volume of the diaphragm, the pore volume of the positive pole piece and the pore volume of the negative pole piece in the roll core is determined as the total electrolyte retention capacity of the secondary battery, so that the electrolyte supply requirements in the charge-discharge cycle process and the storage process of the secondary battery are met; the lithium precipitation risk at the two sides of the roll core is reduced, the capacity retention ratio of the secondary battery cycle is improved, and the cycle life and storage performance of the secondary battery are further improved.

The invention discloses an automatic dosing device and method for circulating water. The automatic dosing device comprises a box body, and an automatic quantitative dosing mechanism for quantitatively dosing into the box body is arranged at the top of the box body; and the automatic quantitative chemical adding mechanism comprises a round box fixed to the top of the box body, the top of the round box communicates with a hopper, a mounting cylinder is fixed to the top wall of the round box, a rotating cylinder is rotationally connected to the interior of the mounting cylinder, and a connecting column is fixed to the bottom of the rotating cylinder. According to the circulating water automatic dosing device and method, through the arrangement of the automatic quantitative dosing mechanism, automatic quantitative dosing of medicine powder is achieved, one-time quantitative medicine adding is completed by rotating a cam by a circle and pressing a sleeve once, medicine added every time is quantified, and therefore the concentration of medicine in water is well controlled; the phenomena of medicine waste and poor purification effect due to too little medicine are avoided.

This utility model relates to the field of medical diagnostic analysis technology, specifically an RFID-based reagent buffer device. It includes a test tube holder, an electronic tag fixed to one side of the test tube holder, multiple RFID readers mounted on the inner wall of a temporary storage rack, an anti-precipitation component mounted on a cooling module, and a control circuit board fixed to the inner bottom of the temporary storage rack. When the electronic tag on the reagent rack is facing the RFID reader, the RFID reader can decode the electronic tag signal. The anti-precipitation component drives the reagent tubes containing magnetic beads / microspheres to rotate. The cooling module, the extraction motor, the RFID reader, and the anti-precipitation component are all electrically connected to the control circuit board. This utility model can automatically identify the reagent rack, achieving a higher degree of automation, and can also drive the reagent tubes containing magnetic beads / microspheres to rotate, ensuring that the concentration at the bottom of the reagent tube is consistent with the concentration in the middle of the reagent tube, thus guaranteeing the accuracy of the detection results after extraction by the detector's extraction head.

The utility model discloses a kind of non-woven fabric antistatic treatment equipment, it is related to non-woven fabric relevant field, and it includes: non-woven fabric is placed in the end of storage rack, storage rack is fixedly connected in the back of first cloth guide roller frame, first cloth guide roller frame is fixedly connected in the rear end of mounting table, and mounting table front end is equipped with second cloth guide roller frame and cloth reel, and mounting table middle part is equipped with dip process mechanism, and dip process mechanism is fixedly installed in the middle part of mounting table, and the top of dip process mechanism is equipped with top cover, and the inside of dip process mechanism upper portion is equipped with top stirring mechanism, and the inside of dip process mechanism bottom is equipped with bottom stirring mechanism, by setting top stirring mechanism and bottom stirring mechanism in the inside of dip process mechanism top and inside bottom, reciprocating stirring is carried out to antistatic agent, antistatic agent stratification is forced to break, ensure that the concentration of antistatic agent in each position in dip process mechanism is consistent, avoid that non-woven fabric different section contacts different concentration antistatic agent.

The flameless combustion gas homogenizing module comprises a reactor and a gas homogenizing assembly, the gas homogenizing assembly is located in the reactor and comprises an upper top plate and a lower end plate, a plurality of gas inlet screens are fixed to the side edge of the upper surface of the lower end plate, and the gas inlet screens are located between the upper top plate and the lower end plate; an air outlet screen is fixedly connected to the middle of the lower surface of the upper top plate and located between the upper top plate and the lower end plate, and a plurality of middle partition plates are arranged between the upper top plate and the lower end plate. According to the invention, the upper top plate, the lower end plate, the air inlet screen, the air outlet screen and a plurality of middle partition plates are arranged, so that the gas homogenizing module can uniformly disperse mixed gas of methanol and air, and ensures that the concentration of the methanol in contact with a catalyst is consistent and the generated heat is consistent, thereby ensuring the overall temperature consistency, and further providing more accurate reaction conditions for chemical reaction; the heat supply range of methanol flameless combustion is expanded, and the efficiency and quality of chemical reaction are improved.

The invention relates to the technical field of additive storage devices, and particularly discloses a coal water slurry additive storage device and method.The coal water slurry additive storage device comprises a loading structure and an anti-sinking structure, the anti-sinking structure is fixedly arranged in the loading structure, and the anti-sinking structure comprises an anti-sinking unit and a mixing unit. Maintenance and cleaning can be carried out more easily, the cleaning difficulty is reduced, the cleaning time is shortened, and the sanitation of the storage device and the quality of additives can be kept; due to the design of the discharge spout, pouring or injection is facilitated, the operation convenience can be improved, and waste and pollution of the additive in the transfer process are reduced; the device is simple in structure, can scrape and stir sediments at the bottom of the box body, is favorable for preventing the additive from precipitating, keeping the uniformity of a solution and ensuring that the additive has consistent concentration and density during use, and is relatively low in overall cost and easy to operate.

The utility model relates to the technical field of drip irrigation, in particular to a greening maintenance drip irrigation device which comprises a water storage tank, a first filter screen, a second filter screen, a water outlet pipe, a drip irrigation head, a stirring device, a chemical adding device and a moving device. A first filter screen and a second filter screen are respectively mounted in an inner cavity of the water storage tank from top to bottom, a user can add required fertilizer, insecticide or plant nutrient solution into the water storage tank through a chemical adding device, and a stirring device is started, so that the chemical is fully and uniformly mixed with water, and uniform nutrient distribution in the irrigation process is ensured; the multiple drip irrigation heads slowly permeate into soil at the roots of plants, each drip irrigation head is provided with an independent control valve, closing and starting can be selected according to the specific positions of different plants, the chemical adding device and the stirring device are used in cooperation, fertilization operation can be synchronously completed in the irrigation process, the labor cost is saved, and the working efficiency is improved.

The invention discloses a rock stress corrosion test device and equipment thereof, and relates to the technical field of rock mechanical tests. The rock stress corrosion test device comprises a test tank; the test tank is also provided with a circular opening communicated with the test cavity; the annular piece is arranged at the circular opening of the test tank; a plurality of stirring rods; each stirring rod is arranged on the annular piece; during use, each stirring rod is positioned in the test cavity of the test tank; and the driving structure is used for driving the annular piece to rotate around the axis of the annular piece. Through the design of the structure of the annular piece and the stirring rods, the annular piece and all the stirring rods do not interfere with the test block or the pressure head, when the annular piece rotates, all the stirring rods can be driven to rotate, and the rotating stirring rods can make the concentrations of chemical solutions in all positions in the test tank tend to be consistent.

The utility model relates to a cup warming device and a coffee machine, and belongs to the field of coffee brewing. A cup heating device comprises a shell assembly, a cup heating assembly, a cup heating assembly and a cup heating assembly, the shell assembly is provided with a brewing cavity and a heating cavity, and the heating cavity is adjacent to the top wall of the shell assembly; the heating assembly is arranged on the shell assembly and located in the heating cavity; the brewing assembly is arranged on the shell assembly and located in the brewing cavity, and the brewing assembly is communicated with the heating assembly; and the liquid supply assembly is arranged on the shell assembly and communicates with the heating assembly. The warm coffee cup can reduce quick loss of heat after coffee is poured into the cup, so that the coffee can be kept at a proper drinking temperature for a long time. The cup can lock fragrance and rich taste of coffee after being warmed, the situation that the flavor is boring due to sudden temperature drop is avoided, and the coffee drinking experience is improved. When a user starts the coffee machine to brew coffee, the cup warming function is automatically started.

The utility model discloses a kind of automatic continuous filling's corpse antiseptic high-pressure perfusion device, including liquid storage tank, medicament box, automatic liquid preparation liquid filling device, medicament box is sequentially connected liquid storage tank by medicament branch pipe, first solenoid valve, first flowmeter, medicament main pipe, the upper portion of liquid storage tank is connected distilled water tank by water pipe, second flowmeter, second solenoid valve;Automatic liquid preparation liquid filling device includes liquid pump, controller and liquid level sensor, the import of liquid pump is connected liquid storage tank by liquid extraction pipe, the outlet of liquid pump is connected perfusion needle by gate valve, liquid guide pipe, hose;Liquid level sensor is arranged in liquid storage tank, and upper and lower limit switch of liquid level sensor is electrically connected with first solenoid valve, second solenoid valve, liquid pump switch and controller respectively.The utility model integrates automatic liquid preparation and high-pressure liquid filling function, can continuously, stably obtain sufficient perfusion fluid supply, realizes high pressure, automatic, continuous perfusion, improves perfusion efficiency and uniformity.

The utility model relates to the technical field of electroplating processing, and discloses a closed constant-temperature electroplating processing tank which comprises an electroplating tank body, a cover plate is arranged at the upper end of the electroplating tank body, a fixed groove is formed in the middle of the cover plate, a threaded rod is rotationally connected into the fixed groove, a movable plate is in threaded connection with the threaded rod, and a gear is rotationally connected to the middle of the lower end of the movable plate; the middle of the lower end of a gear is fixedly connected with a rotating rod, the lower end of the rotating rod is fixedly connected with a mounting frame, a mounting rod is clamped in the mounting frame, and the two sides of the lower end of the mounting rod are fixedly connected with workpiece hanging frames. According to the workpiece hanging rack, the workpiece hanging rack can be directly hung on the mounting rack without extending by means of a tool when being mounted on the mounting rack, so that the workpiece is more convenient to mount, and the workpiece hanging rack can be mounted on the mounting rack for electroplating processing by adopting a clamping manner.

The utility model belongs to the technical field of water-based paint production, and particularly relates to a water-based paint concentration adjusting device which comprises a loading assembly capable of enabling the device to stably operate and accelerating the speed of enabling finished paint to fully flow away from the device, and a stirring tank capable of containing paint to be stirred and mixed is arranged in the loading assembly. The stirring tank is provided with a stirring assembly which can make multi-point contact with the paint so as to stir the paint and prevent the paint from being continuously attached to the inner wall of the stirring tank. Through the arrangement of the scraping part capable of being in contact with the inner wall of the stirring tank, the scraping part rotating along with the stirring part can prevent a small amount of paint from being adhered to the inner wall of the stirring tank and not being mixed with other paint on the basis of stirring the paint, and meanwhile, the position of the scraping part in the stirring tank is variable by adjusting the rotating speed of the stirring part, so that the paint stirring efficiency is improved. Therefore, paint mixing is further accelerated, and the concentration of paint in all positions in the stirring tank is consistent.

The utility model discloses a filling and storing device for honey production, which belongs to the technical field of honey production and storage and comprises a storage tank, the outer wall of the storage tank is fixedly connected with opposite sides of two fixing blocks respectively, and the tops of the two fixing blocks are fixedly connected with supporting rods. The top ends of the two supporting rods are connected with the bottom of the same top plate, a moving groove is formed in the top plate, a moving rod is movably connected into the moving groove, the bottom end of the moving rod is connected with the top of a pressing plate, the outer wall of the pressing plate is movably connected with the inner wall of a storage tank, and the inner diameter of the storage tank is matched with the outer diameter of the pressing plate. According to the filling and storing device for honey production, the moving groove, the moving rod, the pressing plate, the first motor, the gear and the gear block are arranged, so that in the using process of the storing device, honey is extruded, the honey discharging speed can be increased, and the situation that in the natural flowing process of honey, due to high viscosity, discharging is slow is avoided.

This utility model discloses a dyeing device for ultra-high breathability and antibacterial knitted fabrics, including a base, a support rod fixedly installed on the top of the base, a dyeing tank fixedly installed on the top of the support rod, a filter plate fixedly installed inside the dyeing tank, a drive motor fixedly installed on the top of the base, a stirring plate rotatably installed inside the dyeing tank, a main shaft fixedly installed at the bottom of the stirring plate, a rotating disk sleeved on the output shaft of the drive motor, and an intermittent stirring assembly at the bottom of the dyeing tank. In this utility model, the rotating disk drives the intermittent rod to rotate, and the intermittent rod is squeezed by a limiting plate and rebounded by a return spring, cyclically engaging between the push rods of the intermittent disk and causing it to rotate, thereby driving the main shaft and the stirring disk to rotate. The four stirring blades and reinforcing blades on the stirring disk enhance the stirring effect, effectively preventing the dye from settling to the bottom due to gravity, ensuring that the dye concentration in the upper and lower layers of the dyeing tank is consistent, fundamentally solving the problem of color spots and color differences in ultra-high breathability and antibacterial knitted fabrics caused by concentration differences, and ensuring dyeing uniformity.

This invention discloses an organic food growth atmosphere control device, including a gas distributor and a gas concentration analyzer. The gas distributor provides growth conditioning gas to the gas-using equipment. The inlet of the gas distributor is connected to a growth conditioning gas source, and multiple outlets of the gas distributor are evenly distributed within the gas-using equipment. The gas concentration analyzer detects the concentration of the growth conditioning gas inside the gas-using equipment, and the gas distributor adjusts the concentration of the growth conditioning gas inside the gas-using equipment based on the data from the gas concentration analyzer. This invention can precisely control the gas concentration inside the gas-using equipment and simultaneously replenish gas to the equipment in real time based on the detection results of the gas concentration analyzer, effectively ensuring a stable internal atmosphere and consistent concentration within the gas-using equipment.

The utility model discloses an irrigation device for landscaping engineering relates to garden engineering technical field, including bottom plate, the rear side fixed mounting of bottom plate top has the handle, the rear side fixed mounting of bottom plate top has the water tank, the bottom fixed communication of water tank front side has the water pump, the input of water pump fixed communication has the water suction pipe, and water suction pipe is away from the bottom fixed communication of water tank of one end of water pump, the output of water pump fixed communication has the flexible hose. The utility model discloses through setting bottom plate, handle, water tank, water pump, water suction pipe, flexible hose, swing water spraying mechanism, drive mechanism and height adjusting mechanism, has realized the flexibility, automation and accuracy of landscaping irrigation, has solved the problem that traditional ground -buried shower nozzle many dead angles, artificial hand -held water pipe intensity is big and cannot satisfy the problem of automation and height adjusting demand of low efficiency.

The utility model discloses an ink supply device of a brake hose printer, and relates to the technical field of printing devices. The ink supply device of the brake hose ink writer comprises a supply device side plate and an ink supply device body, the ink supply device body comprises a fixing frame, a mounting plate, a heater, a heat conduction plate, a sponge frame, sponge and a handle, the fixing frame is fixedly connected to the surface of the supply device side plate, and the mounting plate is connected to the surface of the fixing frame through bolts. The heater is fixedly connected to the surface of the side plate of the supply device, the heat conducting plate is fixedly connected to the surface of the fixing frame and electrically connected with the heater, the sponge frame is slidably connected to the interior of the fixing frame and fixedly connected with the mounting plate, the sponge is fixedly connected to the interior of the sponge frame, and the heater and the heat conducting plate can heat the sponge. The printing ink is prevented from being sticky due to too low temperature, smooth printing is ensured, and the scraper can scrape redundant printing ink on the printing wheel, so that writing is clear and regular.

The invention relates to the technical field of flue gas denitration systems, and discloses an efficient urea direct injection pyrolysis system, which comprises a mixing unit, which comprises a urea solution supply pipeline, a demineralized water supply pipeline and a mixed liquid supply pipeline; the metering output unit is connected with the mixed liquid supply pipeline and comprises a plurality of metering output pipelines and backflow pipelines connected with the metering output pipelines, and the output end of each metering output pipeline is correspondingly connected with a spray gun in the spray gun system; the input end of the flushing water unit is connected with the demineralized water supply pipeline, and the output end is connected with the metering output pipeline; the compressed air unit comprises an atomizing air pipeline and a cooling air pipeline; in the pipeline system, the concentration of the urea solution is adjusted and monitored in a multi-stage mode through the mixing unit and the metering output unit, the concentration of the urea solution is kept consistent before the urea solution reaches the spray gun, and the pipeline of the flushing water unit is matched, so that the problem that the pipeline is blocked when the pipeline system is not used or paused is solved.

The present invention belongs to the technical field of plastic product processing, and specifically is a plastic product printing device, comprising: a conveyor belt; a fixing frame, fixedly connected to one end of the top of the conveyor belt; a printing head, arranged below the fixing frame; a bracket, fixedly connected to the top of the conveyor belt, and connected to a rotating plate by rotation of a rotating rod; a drying box, fixedly connected to the other end of the top of the conveyor belt, for air-drying ink; through the cooperation of a first spring, a filter cartridge and a lifting plate, the ink in a mixing barrel enters through a feed hopper, and when the ink passes through the filter cartridge, an ink filter layer is arranged on the filter cartridge to filter out larger ink particles, fibers, iron fines and other impurities, wherein under the action of the gravity of the ink and the elastic force of the first spring, the lifting plate vibrates back and forth up and down, and the impurities on the inner wall of the filter cartridge are scraped off by the lifting plate to prevent the impurities from blocking the filter cartridge, reducing the filtering effect, and achieving a rapid filtering effect; after a period of time, the filtered ink is stirred by a stirring paddle to increase fluidity and maintain a consistent ink concentration.

The present disclosure relates to the technical field of electrolytic cell, and one embodiment of the present disclosure provides a copper refining electrolytic cell, which comprises an electrolytic cell body and a pair of support tables arranged at the two ends of the bottom of the electrolytic cell body, an anode plate and a cathode plate are inserted and installed in the electrolytic cell body, an insulating plate installation assembly is arranged at the top of the electrolytic cell body, and a homogenization treatment assembly is arranged in the bottom of the electrolytic cell body, wherein the homogenization treatment assembly comprises a liquid supplementing pipe and a liquid outlet pipe, the liquid supplementing pipe and the liquid outlet pipe are arranged in the two sides of the electrolytic cell body respectively, an inner pipeline is connected between the liquid supplementing pipe and the liquid outlet pipe, and a plurality of dispersion holes are formed in the top of the inner pipeline. Through the above technical scheme, the technical problem that the existing copper refining electrolytic cell generally lacks a stirring and dispersing structure after the electrolyte is supplemented, resulting in uneven composition of the supplemented electrolyte and the original electrolyte in the tank is solved.

The invention provides elution wastewater treatment equipment and an arsenic-alkali residue resource recycling process, and relates to the technical field of wastewater treatment, the elution wastewater treatment equipment comprises a base, a top pipe, a rotating cylinder and a flocculation mechanism; a mounting frame is fixedly arranged at the top of the base, a settling tank is mounted in the mounting frame, a discharge pump is mounted on the upper surface of the base and located below the settling tank, and a discharge pipe is hermetically mounted at the outlet end of the discharge pump; the top end of the top pipe is rotationally connected with a rotating cylinder, the flocculation mechanism comprises a side plate fixedly arranged on the side wall of the top pipe, and a mounting plate is mounted on the outer wall of the side plate. According to the scheme, the flocculation plates are overturned and mixed from the middle of the rotating cylinder to the outer side in a reciprocating manner, so that a mixed flow field is attached to the radial space distribution characteristic of the rotating cylinder, the problem that a conventional stirring center is strong and the edge is weak is solved, and meanwhile, the requirements of chemical diffusion, floc growth and scale and deposition prevention of arsenic-alkali residue elution wastewater combined with calcium hydroxide flocculation are met; and calcium hydroxide is fully and uniformly diffused to the cylinder wall from the feeding core area along the radial direction at a constant speed.

The invention relates to the field of disinfection, and discloses clinical medical examination sterilization and disinfection equipment which comprises a disinfection cabinet and a disinfectant box, a spraying mechanism is arranged in the disinfection cabinet, and a stirring assembly is arranged in the disinfectant box; the stirring assembly comprises a motor, a stirring rod and a first bevel gear; the spraying mechanism comprises a liquid spraying assembly and a driving assembly; the liquid spraying assembly comprises a liquid spraying pipe, a connecting pipe, a spraying head and a first gear; the driving assembly comprises a vertical rod, a second bevel gear and a second gear. Through rotation of the spray head, the spraying range is enlarged when a disinfectant is sprayed, the disinfectant is more uniformly sprayed, and sterilization and disinfection are more effectively carried out.

The utility model relates to the technical field of gas detection, and discloses a flue gas circulation sampling and measuring device which comprises a sampling assembly, a heat preservation cavity and a measuring assembly. The sampling assembly comprises a sampling pipe, the sampling pipe is arranged on the cavity wall of the cavity to be detected, and smoke circulates in the cavity to be detected. The heat preservation cavity is located outside the to-be-detected cavity and comprises a first cavity and a second cavity which are communicated through a circulating fan, the sampling pipe comprises an air inlet pipe and an air return pipe, the air inlet pipe is communicated with the to-be-detected cavity and the first cavity, and the air return pipe is communicated with the second cavity and the to-be-detected cavity. The circulating fan is used for enabling flue gas in the to-be-measured cavity to sequentially flow through the gas inlet pipe, the first cavity and the second cavity and flow back to the to-be-measured cavity through the gas return pipe, the measuring assembly is partially arranged in the first cavity, and the measuring assembly can be used for measuring specified indexes of the flue gas flowing through the first cavity. The flue gas circular sampling and measuring device can perform circular sampling, does not discharge any gas and solid waste, avoids environmental pollution, and is accurate in measuring result.

The present invention discloses a PCB silver immersion production line, a silver immersion solution replenishment control system and a method thereof. The silver immersion solution replenishment control system of the present invention, the plate number acquisition module, the information acquisition module and the controller control the solution replenishment module to realize the automatic replenishment of the silver immersion solution; in addition, the PCB silver immersion production line uses the silver immersion solution replenishment control system, the silver immersion tank and the transportation device to realize the automatic replenishment and production of the silver immersion process, and effectively improve the silver immersion production efficiency. Finally, in the silver immersion solution replenishment control method, by obtaining the required amount of silver corresponding to the first plate number, and then making a replenishment judgment based on the required amount of silver corresponding to the first plate number and the preset amount of silver, when the required amount of silver corresponding to the first plate number is greater than the preset amount of silver, the control is to replenish, and the silver replenishment amount is the required amount of silver corresponding to the first plate number to maintain the total amount of silver in the silver immersion tank stable, ensure the silver immersion effect, and can realize automatic replenishment, improve production efficiency.

The application relates to the technical field of display, and discloses a developing device and a developing method. The developing liquid in a first liquid storage tank of a display device is supplied to a first developing tank, a second developing tank and a third developing tank, the developing liquid in a second liquid storage tank is supplied to a fourth developing tank, part of the developing liquid in the first developing tank is directly drained through a first direct drainage pipeline, and the other part is returned to the first liquid storage tank; the developing liquid in the second developing tank and the third developing tank is all returned to the first liquid storage tank; the same amount of developing liquid as that directly drained from the first developing tank is returned to the first liquid storage tank, and the other part is returned to the second liquid storage tank; the third liquid storage tank supplements the developing liquid to the second liquid storage tank; and the fourth liquid storage tank and a pure water supply pipeline supplement and adjust the high-concentration developing liquid stock solution or water according to the concentration, so that it is unnecessary to frequently switch the liquid storage tank, the utilization rate of the developing liquid is improved, the consistency of the developing liquid is ensured, and the uniformity of the same batch of products is improved.

The invention provides a fertilizing device for preventing a macroelement water-soluble fertilizer from generating calcium phosphate precipitate, and mainly relates to the technical field of fertilizing devices. A fertilizing device for preventing a macroelement water-soluble fertilizer from generating calcium phosphate precipitation comprises a base, a pretreatment barrel, a discharging hopper, a grinding and feeding assembly and a stirring assembly, a water inlet pipe is fixedly installed on the top face of the pretreatment barrel, a drainage pipe is fixedly installed on the bottom face of the pretreatment barrel, and the discharging hopper is fixedly installed on one side of the top face of the pretreatment barrel. A grinding and feeding assembly is arranged on the upper portion of the interior of the pretreatment barrel, a stirring assembly is arranged on the lower portion of the interior of the pretreatment barrel, and the grinding and feeding assembly drives the stirring assembly to rotate through a transmission assembly. The water-soluble fertilizer pretreatment device has the beneficial effects that when the device is used, a water-soluble fertilizer can be ground and crushed through mutual cooperation of a fixed grinding disc and a driving grinding disc, so that the dissolving efficiency of the water-soluble fertilizer is greatly improved, and the water-soluble fertilizer is prevented from forming precipitates in the pretreatment barrel.

The invention relates to the technical field of flue gas denitration and pipeline heat tracing, and discloses a urea direct injection pyrolysis system in a novel pipeline heat tracing mode, the urea direct injection pyrolysis system comprises a mixing unit, a metering output unit and a pipeline heat tracing unit, the mixing unit comprises a urea solution supply pipeline, a demineralized water supply pipeline and a mixed liquid supply pipeline; the metering output unit comprises a plurality of metering output pipelines and a return pipeline, and each metering output pipeline is correspondingly connected with a spray gun in the spray gun system; the pipeline heat tracing unit is connected with the urea solution supply pipeline and the metering output unit; in the invention, the concentration of the urea solution is adjusted and monitored in a multi-stage manner through the mixing unit and the metering output unit, so that the concentration is kept consistent before the urea solution reaches the spray gun, and a pipeline of the flushing water unit is matched, so that the problem of pipeline blockage when a pipeline system is not used or is suspended in use is avoided; and the recovered drainage waste heat is further utilized for pipeline heat tracing, so that the operation economy of the unit is reduced while the pipeline is prevented from being blocked.

This invention provides a rotational accuracy measuring device for bearing manufacturing, belonging to the technical field of bearing rotational accuracy measurement. It includes a device body, with a first driving device on the left side of the device body. The first driving device can drive a measuring stage to move. The measuring stage has a built-in power source for rotation. The bearing to be tested is placed on the measuring stage. A second driving device is located at the top of the device body. This invention, through measuring components one and two, can specifically measure the rotational accuracy of different bearing surfaces and the rotational accuracy under lateral pressure, covering the core testing requirements of bearing rotational accuracy and improving the comprehensiveness of the measurement. The fluorescent magnetic particle flaw detection structure can detect internal or surface defects in the bearing, supplementing the quality inspection dimension beyond accuracy measurement. The magnetic suspension recovery component realizes magnetic suspension concentration compensation and recycling, reducing resource waste, lowering testing costs, and conforming to the concept of green production.