33results about How to "Liquid level stability" patented technology

The utility model relates to a coating buffer tank which comprises a tank body and a feed liquid buffer structure, and the tank body is provided with a feed port and a feed liquid stirring cavity arranged in the tank body; the feed liquid temporary storage structure is arranged in the tank body, a feed liquid temporary storage space and at least one communicating hole used for keeping static pressure balance in the cavity are formed in the feed liquid temporary storage structure, the feed liquid temporary storage space is communicated with the feed inlet, and the at least one communicating hole is communicated with the feed liquid temporary storage space and the feed liquid stirring cavity; and the feed liquid which enters the feed liquid buffer space from the feed port is supplemented into the feed liquid stirring cavity. During feeding, feed liquid enters the feed liquid buffer space from the feed inlet, the feed liquid in the feed liquid buffer space is supplemented to the feed liquid stirring cavity through the communication hole at the time of stopping feeding, and the liquid level in the feed liquid buffer space is reduced slowly, so that the stability of the liquid level and the stability of static pressure in the feed liquid stirring cavity are ensured; meanwhile, the opening and closing frequency of the feeding electromagnetic valve and the feeding screw pump is reduced, and the stability of the feeding system is guaranteed.

The invention provides a circuit board electroplating device which comprises a conveying assembly, and the conveying assembly comprises a rack, an electroplating bath, a connecting column, a mounting cylinder, a synchronous electric cylinder, a connecting base, a mounting frame, a sliding block, a driving motor, a driving screw, a threaded hole, a mounting plate and a controller. According to the invention, the slot on the mounting plate is matched with the slidable adjusting rod, and the position of the adjusting rod can be accurately locked through the limiting screw hole and the limiting screw, so that the cathode clamp can be flexibly adjusted according to the size of the circuit board, and the cathode clamp clamping the circuit board is ensured to be completely immersed into an electroplating solution in an electroplating bath; meanwhile, the adjusting rod and the connecting block are quickly connected and separated through structures such as a pin rod and a spring, and a proper cathode clamp is conveniently replaced according to the specification of the circuit board, so that the adaptability is improved, the synchronous electric cylinder and the driving motor are uniformly regulated and controlled through the controller, accurate movement of the circuit board in the vertical direction and the horizontal direction is achieved, and the production efficiency is improved. All links from installation to electroplating are completed, manual intervention is reduced, and efficiency and accuracy are improved.

The utility model discloses a heat source water segmented cooling type two-stage two-class absorption heat pump, and belongs to the technical field of heat exchange equipment. Comprising a first-stage condenser, a second-stage condenser, a first-stage regenerator, a second-stage regenerator, a low-pressure evaporator, a low-pressure absorber, a high-pressure evaporator, a high-pressure absorber, a low-temperature heat exchanger, a high-temperature heat exchanger, a solution pump, a first-stage refrigerant feeding pump, a second-stage refrigerant feeding pump, a refrigerant circulating pump and a flash tank. The structure and process of heat source water segmented cooling and two-stage absorption and evaporation are adopted, refrigerant water circulation is conducted in a low-pressure absorber pipe, solution circulation is conducted outside the low-pressure absorber pipe, no heat transfer pipe is arranged in a high-pressure evaporator, the high-pressure evaporator conducts heat exchange in a refrigerant water flash evaporation mode, and refrigerant water flows through gravity and density difference; power devices such as a circulating pump do not need to be configured, the unit cost is reduced, heat source water cascade efficient utilization is achieved, the output grade and output of steam are improved, the heat exchange efficiency of the unit is improved, energy waste is avoided, and meanwhile stable operation of the unit can be guaranteed.

The invention discloses a method for adding rare earth into a low-alloy high-strength steel crystallizer, which belongs to the technical field of application of rare earth in steel, and is mainly characterized in that rare earth is added in a manner of symmetrically feeding rare earth wires on two sides of a slab casting machine single-flow crystallizer by adopting a double-pipe wire feeder at a position which is 1 / 2 of the thickness and is 100mm away from a water gap in the width direction; the rare earth wires are 65% Ce-35% La mixed rare earth wires with the diameter being 2.5 mm and wrapped with iron sheets. According to the method for adding the rare earth into the low-alloy high-strength steel crystallizer, the liquid level of the crystallizer is stable in the whole wire feeding process, the storage amount of the rare earth in the steel is increased, water gap flocculation is avoided, the rare earth is evenly distributed on the whole section of a casting blank, the internal quality of the casting blank is improved, and reference can be provided for development of rare earth steel with the high storage amount of the rare earth.

The utility model relates to the technical field of coal dressing, in particular to a magnetic separator tailing overflow self-circulation water replenishing device which comprises a magnetic separator, a feeding port of the magnetic separator is connected with a dilute medium barrel through a feeding pipe, a water pump is arranged on the feeding pipe, a water inlet of the dilute medium barrel is connected with a water replenishing pipeline, and an overflow pipe of the magnetic separator is located above an opening of the dilute medium barrel. An overflow pipe of the magnetic separator is connected with one end of a backflow pipeline, the other end of the backflow pipeline is located above the dilute medium barrel and close to an opening of the dilute medium barrel, and water overflowing from the overflow pipe of the magnetic separator flows into the dilute medium barrel through the backflow pipeline under the action of gravity. According to the utility model, water overflowing from the overflow pipeline of the magnetic separator can automatically flow to the dilute medium barrel to be used as replenished water, so that the circulation of water resources in the coal dressing system is realized, the use of external water is reduced, additional equipment is not needed, and unnecessary power consumption is effectively reduced, energy is saved and consumption is reduced while the production process is stabilized.

The utility model provides a slag rake cooling water temperature and liquid level self-adjusting device, which relates to the technical field of steelmaking converters and comprises a cold water inlet pipe leading to the inside of a cooling water tank and a hot water discharge pipe arranged below the side wall of the cooling water tank and communicated with the inside of the cooling water tank, a water inlet valve is arranged on the cold water inlet pipe, and a water discharge valve is arranged on the hot water discharge pipe. The first support is provided with a liquid level sensor, the second support is provided with a thermodetector, the outer wall of the cooling water pool is provided with a control box, and the water inlet valve, the water drainage valve, the liquid level sensor and the thermodetector are all electrically connected with the control box. The cold water inlet pipe is provided with the water inlet valve, the hot water discharge pipe is provided with the water discharge valve, the liquid level sensor is arranged to measure the liquid level, and the thermometer is arranged to measure the temperature of pool water, so that the water inlet valve and the water discharge valve can be automatically controlled by the control box to act, and automatic cold water filling and hot water discharge are realized; and the water level and the water temperature in the cooling water tank are kept stable.

This utility model discloses a liquid baffle with foam suppression function for electrolytic cells, including a liquid baffle body. Vertical plates are fixedly connected to the top four sides of the liquid baffle body. A drive motor is bolted to the outer side of each vertical plate. A threaded rod is fixedly connected to the output end of the drive motor, and a movable plate is threadedly connected to the surface of the threaded rod. This utility model utilizes the synergistic action of a stirring motor, a rotating disc, a crushing rod, a vibrating motor, a vibrating rod, crushing blocks, and spikes to treat foam from multiple aspects, including stirring, crushing, and vibrating. Compared to traditional liquid baffles, it improves foam suppression efficiency, effectively maintains stable liquid levels in the electrolytic cell, and reduces the adverse effects of foam overflow. The lifting structure composed of the drive motor, threaded rod, and movable plate can flexibly adjust the position of the crushing components according to the height and distribution of foam in the electrolytic cell, ensuring good foam suppression effects under different operating conditions.

This invention discloses a low-level protection device for a turbine lubricating oil tank, comprising a vent pipe, an oil suction pipe, and an oil outlet pipe. The vent pipe and the oil suction pipe are connected by an intermediate pipe. The upper opening of the vent pipe is higher than the maximum shutdown level, and the lower opening of the oil suction pipe is lower than the low-low level. The oil outlet pipe connects to the intermediate pipe and the oil suction pipe at the junction via a horizontal pipe with a perforated plate, forming a low-suction oil path. The oil outlet pipe extends horizontally out of the tank side plate. A horizontal pipe is connected at the junction of the vent pipe and the intermediate pipe, and the other end of the horizontal pipe connects to the oil outlet pipe via a downcomer, forming a high-suction oil path. The horizontal pipe is parallel to the horizontal pipe with a perforated plate. The highest point of the inner wall of the horizontal pipe is flush with the low level. The lowest point of the perforation in the horizontal pipe with a perforated plate is flush with the low-low level. This invention has a simple structure and effectively avoids rapid leakage of lubricating oil from the oil suction interface of the lubricating oil tank side plate, thus protecting the lubricating oil tank from low levels.

The utility model discloses a kind of slurry flow control system for shield machine and shield machine with it, comprising: the slurry cabin of being laid in the shield body of shield machine, and the transition cabin, grouting system and slurry discharge system of being laid outside shield machine, and air pressure control system. Transition cabin is equipped with liquid level detector for detecting the liquid level in it and first pressure detector for detecting the pressure in it, and transition cabin is connected with air pressure control system to adjust the air pressure in it, and transition cabin is also connected with slurry cabin, to control slurry cabin pressure by slurry pressure and air pressure in transition cabin, and then make slurry cabin pressure match face water and soil pressure. Transition cabin and slurry cabin are also connected with grouting system to inject slurry respectively, and slurry cabin is also connected with slurry discharge system to discharge slurry outward. The new system can ensure the stability of liquid level and air pressure in transition cabin, and then control the stability of slurry cabin pressure, so that slurry cabin pressure matches face water and soil pressure.

A composite on-site flow meter calibration method is disclosed. This method allows for measurement of individual instruments using standard instruments, and can switch between standard instruments and volumetric measuring devices for simultaneous measurement, as well as between standard instruments and gravimetric measuring devices for simultaneous measurement. Therefore, it enables free switching between various measuring devices for comparison of measurement values, solving the problem of large measurement errors caused by single measurement methods and greatly improving the accuracy of instrument calibration. Furthermore, the instrument clamping device in this calibration method can simultaneously clamp multiple instruments in series for measurement, resulting in high efficiency and allowing for easy adjustment of the clamping quantity as needed, demonstrating strong adaptability. The gravimetric measuring device in this calibration method can accommodate the efficient alternation of two weighing devices while ensuring a relatively stable liquid level in the oil tank, which is beneficial for flow stability during the weighing process.

The utility model discloses a centrifugal vacuum degasser liquid level automatic regulating device, including valve body shell, float ball, valve core, outer exhaust joint, inner suction joint and outer suction joint. The valve core is arranged in the valve body shell, is equipped with a plurality of communicating holes on it, wherein the hole that communicates with the outer exhaust joint is long hole to guarantee that the outer exhaust joint always keeps communicating, the hole distance design of the hole that communicates with the inner suction joint and the outer suction joint is when the inner suction joint is completely connected, the outer suction joint is completely closed, and vice versa. The lower end of valve core is connected with float ball through connecting rod, and float ball drives valve core to move up and down under the buoyancy effect of float ball, thereby realizes the alternate switching of inner suction joint and outer suction joint. Through the design, the utility model can automatically adjust the air extraction amount according to the liquid level change, avoids vacuum pump reverse suction or evacuation, realizes the automatic stable control of centrifugal vacuum degasser liquid level, and has the advantages of simple structure, reliable operation, high degassing efficiency and the like.

The invention provides an automatic liquid level control method and system for an after-condenser of a liquefied natural gas receiving station. The automatic liquid level control method for the after-condenser of the liquefied natural gas receiving station comprises the steps that S1, the bottom pressure of the after-condenser is kept stable, and the bottom pressure of the after-condenser is obtained; s2, according to the bottom pressure of the after-condenser, the set operation temperature of the after-condenser is calculated; s3, obtaining a plurality of parameter values and BOG mass flow which influence the liquid-gas ratio R value for controlling the recondenser to operate at the set operation temperature; s4, according to the set operation temperature of the recondenser and the multiple parameter values, the liquid-gas ratio R value required by the set operation temperature of the recondenser is calculated; s5, according to the liquid-gas ratio R value required by the re-condenser at the set operating temperature and the BOG mass flow, the LNG mass flow required by feeding of the re-condenser is calculated; and S6, feeding according to the LNG mass flow rate required by feeding of the re-condenser.

The utility model relates to the technical field of petrochemical engineering, in particular to a water supply surge tank water replenishing device which comprises a water surge tank and an automatic water replenishing device, the automatic water replenishing device comprises a water storage tank, a liquid level meter, a balance pipe and a water replenishing pipe, the liquid level meter is fixedly installed on the water storage tank, one end of the balance pipe is fixedly installed on the water storage tank, and the other end of the balance pipe is fixedly installed on the water replenishing pipe. The water supplementing pipe is fixedly installed on a bottom opening of the water storage tank. After the automatic water replenishing device is additionally arranged, the liquid level in the water pressure stabilizing tank is kept stable, the liquid level in the pressure stabilizing tank can be kept stable all the time, the pressure and the flow of sample gas are more stable after the sample gas is treated by the water pressure stabilizing unit, more accurate and stable analysis data are provided for production, and the manual maintenance amount is reduced.

The utility model discloses a primer box and a slurry circulation feeding system, the primer box comprises a material box body, the bottom of the material box body is provided with a feeding port, the feeding port is provided with a flow guide block, the bottom of the material box body is provided with a backflow step, the backflow step is provided with a material return port, and the material return port is provided with a material outlet. And the height of the material returning opening is higher than that of the feeding opening. The slurry circulating feeding system comprises the primer box, a slurry tank and a circulating assembly, and a feeding channel and a backflow channel are formed among the slurry tank, the circulating assembly and the primer box, so that the slurry is recycled. The device has the advantages that the precipitation degree of the slurry in the primer box is effectively reduced, the uniform solid content of the slurry is ensured, the liquid level height in the primer box is stably kept, the slurry is recycled, and the material and labor cost is effectively reduced.

The present invention relates to the field of separation reflux extraction devices, and in particular to reflux extraction devices and extraction tubes. The reflux extraction device comprises an extraction bottle, an extraction tube located above the extraction bottle and sealed with the extraction bottle, a condenser located above the extraction tube and sealed with the extraction tube, a partition layer inside the extraction tube body, a sand core built into the lower part of the extraction tube above the partition and capable of limiting flow, and a steam pipe and an extraction siphon on the side of the extraction tube. Compared with the existing reflux extraction device, the present invention solves the problem of low extraction efficiency and long extraction time caused by the fact that the solid sample is not always in a state of being immersed and extracted during extraction.

This utility model discloses an automatic coating machine for biodegradable adhesives used in environmentally friendly cardboard boxes, relating to the field of environmentally friendly cardboard box production technology. It includes an adhesive shell and a coating roller. The coating roller is disposed inside the upper side of the adhesive shell. A first rotating rod is fixedly sleeved on the middle of the coating roller, and both ends of the first rotating rod are rotatably connected to the inner wall of the corresponding adhesive shell. A first motor is fixedly disposed on one outer wall of the adhesive shell, and the output end of the first motor is fixedly connected to one end of the first rotating rod. A limiting roller is arranged parallel above the coating roller. Vertical plates are fixedly disposed on the upper surface of the adhesive shell on both sides of the limiting roller. An adjustment mechanism for moving the limiting roller is disposed inside the two vertical plates. A piston plate is slidably abutted inside the adhesive shell. This utility model can automatically lift the adhesive, maintaining a stable adhesive level and eliminating the need for frequent adhesive replenishment.

The invention discloses a feed liquid conveying device and a high-level discharge feed liquid treatment system, and relates to the technical field of nuclear industry. The feed liquid conveying device comprises a feed tank used for loading target feed liquid; the buffer tank is communicated with the feeding groove through a first lifting pipeline; the first air lifting device is arranged on the first lifting pipeline; the measurement supply tank is communicated with the buffer tank through a second lifting pipeline and is higher than the buffer tank; the second air lifting device is arranged on the second lifting pipeline; the on-line measuring device is used for measuring the target material liquid in the measuring supply tank, the first end of the on-line measuring device is communicated with the measuring supply tank, and the position of the first end is lower than the lowest point of the measuring supply tank, so that the height difference exists between the first end of the on-line measuring device and the outlet of the measuring supply tank. According to the embodiment of the invention, the device can improve or solve the problem of difficult inclined feeding of a feed liquid conveying device.

This invention proposes a liquid supply device and a substrate cleaning method. The liquid supply device includes a nozzle, the liquid inlet of which can adopt a tangential liquid inlet to promote gas-liquid separation using centrifugal force; a plate-shaped separation section or a cylindrical separation section can be provided above the liquid outlet of the nozzle to suppress the discharge of air bubbles from the liquid outlet; the nozzle can have an upper and lower chamber structure, with exhaust ports in both chambers to achieve secondary exhaust; both chambers can also be equipped with liquid inlets to allow the processing liquid to be mixed twice, which reduces the amount and rate of gas generation compared to single mixing; it also includes a control unit and a liquid level sensor. The control unit adjusts the opening of the regulating valve on the exhaust line of the nozzle based on the liquid level detection signal obtained by the liquid level sensor, so as to maintain a stable liquid level in the nozzle, which helps to reduce the flow fluctuation when the nozzle supplies liquid to the substrate and improves the uniformity and reliability of liquid treatment.

This invention relates to the technical field of water electrolysis hydrogen production equipment, providing a T-type coupled gas-liquid separation and condensation integrated device and its working process for water electrolysis hydrogen production. The device includes a housing comprising a horizontal separation section, a vertical condensation section, and a liquid collection section. The liquid collection section and the vertical condensation section are located on the same vertical plane, with the vertical condensation section positioned above the liquid collection section. The horizontal separation section, vertical condensation section, and liquid collection section are connected and together form a T-shaped structure. A gas deflection channel is formed at the intersection of the vertical condensation section and the horizontal separation section, causing the gas after initial liquid removal to change from horizontal flow to vertical upward flow. The deflection channel forms a flow guiding transition structure to prevent secondary entrainment caused by eddies in the gas flow. This invention employs a three-stage synergistic purification process, achieving excellent gas-liquid separation and demisting efficiency. It utilizes a three-stage synergistic treatment mechanism of gas-liquid cyclone initial separation + deep condensation dehydration + wire mesh demisting, combined with a strong swirling flow field to enhance droplet detachment and a flow equalization plate to optimize airflow distribution, effectively removing electrolyte droplets and water vapor entrained in the gas.

This invention relates to a method for constructing a multi-hole outflow nozzle model for wafer electroplating tanks based on computational fluid dynamics, belonging to the field of semiconductor device surface treatment technology. The method includes constructing an orifice outflow calculation model using a combination of the modified Darcy-Weisbach equation, the modified Bernoulli equation, and the Torricelli formula; obtaining the pressure difference between the cross-sections of adjacent nozzles using the Darcy-Weisbach equation, and establishing a pressure calculation formula for each nozzle; for laminar and low Reynolds number turbulent flows, combining the modified Bernoulli equation and the Torricelli formula to obtain the flow rate at the nozzle, and obtaining the relationship between the flow rate at the nozzle and the cross-sectional area of ​​the nozzle; and constructing the... i Geometric parameters of each injection hole i The solution formula is obtained; and the cross-sectional area and radius of the injection hole are obtained under the condition of neglecting the friction effect. r The calculation formula was used to construct a multi-orifice nozzle model. This ensured that the flow rate at all orifices was equal, guaranteeing stable liquid level and flow field within the tank.

This utility model relates to a braising device for processing braised eggs, including a fixing component and a storage component. The fixing component includes a brine tank and positioning columns. The outer peripheral wall of the brine tank is fixed by multiple columns. Two positioning columns are symmetrically arranged and fixed to both sides of the bottom inner wall of the brine tank. The storage component includes screws and support brackets. Two screws are symmetrically arranged and fixed to two positioning columns. Multiple support brackets are arranged vertically, with each end of the support bracket slidingly passing through two screws. Multiple storage slots are provided on the support brackets. Multiple limiting rings are provided below the support brackets of the bottom support bracket, and the limiting rings are concentrically arranged with the corresponding storage slots on the support brackets. The storage slots below the braised eggs and the limiting rings above them can limit the upper and lower ends of the braised eggs, ensuring that the position of the braised eggs remains unchanged during the braising process. Therefore, it prevents the boiling brine from forcing the braised eggs to collide and break during the braising process.

The utility model discloses a reduction desalted water recycling system which comprises a tank main body, a water outlet pipe and a first water inlet pipe, wherein the water outlet pipe and the first water inlet pipe are arranged at the upper end and the lower end of the tank main body; when the system is used, firstly, electrode power regulation cooling water is reasonably replaced, it is ensured that the water quality of the replaced cooling water meets the follow-up use requirement, in the replacement process, the cooling water is specially detected through the detection device, and the detection device monitors key indexes such as the conductivity and the impurity content of the cooling water in real time; then the replaced cooling water is conveyed into the tank main body through a second water inlet pipe, and then the flow speed of the cooling water is controlled through an electric valve, so that the supplementing amount of the cooling water is accurately controlled, and the liquid level, the pressure and the temperature in the tank main body are stabilized in the optimal state; through cooperative use of the detection device, the electric valve, the first water inlet pipe, the second water inlet pipe, the tank main body and the water outlet pipe, the demand on fresh desalted water is reduced, and the production cost is reduced.

The application discloses a kind of feed liquid conveying device and high feed liquid processing system, it is related to nuclear industry technical field.The feed liquid conveying device includes: feed tank, for loading target feed liquid;Buffer tank, with feed tank through first lifting pipeline communication;First air lifting device, set on first lifting pipeline;Measurement supply tank, with buffer tank through second lifting pipeline communication, its height is higher than the height of buffer tank;Second air lifting device, set on second lifting pipeline;Online measurement device, for measuring target feed liquid in measurement supply tank, its first end communicates measurement supply tank, the position of first end is lower than the lowest point of measurement supply tank, so that the first end of online measurement device and the outlet of measurement supply tank exist height difference.According to the embodiment of the application, the device can improve or solve the problem of difficult to tilt feeding of feed liquid conveying device.

The invention provides an anode carbon block cooling water constant temperature control device which comprises a plurality of thermometers, a liquid level transmitter, a cold water pipeline, a hot water pipeline and a controller, the thermometers are installed in a carbon block cooling water pool, the liquid level transmitter is installed in the carbon block cooling water pool, the cold water pipeline is communicated with the carbon block cooling water pool and a cold water pool, and the hot water pipeline is communicated with the controller. The hot water pipeline is communicated with the carbon block cooling water tank and the hot water tank, and the controller is used for controlling the operation process of the cold water pipeline and the hot water pipeline according to the temperature measured by the thermometer and the liquid level measured by the liquid level transmitter. The device can automatically adjust the operation process of the cold water pipeline and the hot water pipeline so as to keep the temperature and the liquid level of the carbon block cooling water tank stable, the adjustment process is accurate and timely, and the working efficiency is improved.

The utility model discloses a detergent storage tank for car washer, including storage tank main part, pump out liquid pipe, induction strip, float guide pipe and a plurality of groups of wave -resistant post. Pump out liquid pipe bottom end is through to the storage tank main part bottom, its surface inserts and installs hall induction strip, and float guide pipe is along pump out liquid pipe and is set, and the inside sliding installation has magnetic float core, is used for with liquid level lifting trigger induction strip, realizes liquid level signal detection. Wave -resistant post is installed in the storage tank main part bottom surface, including core pole, suppresses flow column and shunt column, three vertical directions are arranged, and the outer surface of suppresses flow column is equipped with flow control groove, and the cross section of shunt column is diamond and keeps the clearance with core pole, suppresses flow column, and adjacent shunt column forms equidistant liquid flow channel. The structure can reduce liquid fluctuation in the process of vehicle vibration, emergency stop or acceleration, guarantee pumping stability, and avoid liquid level detection to be interfered with liquid shaking and be distorted, thereby promote the liquid storage stability and liquid level monitoring accuracy of detergent storage tank.

The utility model relates to the technical field of waste gas treatment, concretely to high -efficient automatic acid -removing water washing system. System includes primary water washing tower, secondary water washing tower, spray pump and pipeline etc., and the top of primary water washing tower is connected with secondary water washing tower through the pipeline, and the primary water washing tower is connected with acid -containing tail gas inlet pipeline, and the bottom of primary water washing tower is connected with primary water washing tower spray pump through the pipeline, and primary water washing tower spray pump is connected with the top of primary water washing tower through the pipeline. The primary water washing tower is equipped with primary water washing tower liquid level detector and primary water washing tower concentration analysis instrument, and the primary water washing tower liquid level detector is connected with PLC control system, and the secondary water washing tower is equipped with secondary water washing tower liquid level detector and secondary water washing tower concentration analysis instrument, and the liquid level detector is connected with PLC control system. The system linkage through PLC control system and each liquid level detector, concentration analysis instrument, cut -off valve and pump body has realized the automatic control of hydrogen fluoride acid -containing tail gas treatment whole process.

A circulating type efficient drying silica gel cloth dipping machine comprises a machine box, a glass fiber cloth unwinding device and a silica gel cloth winding device are arranged on the two sides of the machine box respectively, a silica gel dipping area, a primary drying area, a secondary drying area and a cooling and flattening area are arranged in the machine box, the silica gel dipping area is provided with a glue material groove with a heating plate, and the heating plate is arranged in the glue material groove. The glue trough is divided into a mixing area and a gluing area through a middle partition plate, a communication opening is formed in the bottom of the middle partition plate, a mixing barrel is arranged in the mixing area, a stirring motor and a stirring assembly are integrally installed on the mixing barrel, a circulating feeding pipe is arranged above the side face of the mixing barrel, a plurality of discharging openings are formed in the bottom of the mixing barrel, and a plurality of gluing rollers are arranged in the gluing area. A circulating discharging pipe is arranged on the side part of the gluing area, a circulating conveying pump is arranged outside the gluing area, and the circulating conveying pump is connected with the circulating discharging pipe of the gluing area and the circulating feeding pipe of the mixing barrel through pipelines. The device is stable in process, good in applicability, high in product quality, safe and reliable.

The invention discloses a urea solution preparation system and method. The system comprises an ultrapure water preparation device used for preparing ultrapure water; the air energy heating device is used for heating the ultrapure water until the temperature reaches a set value; the feeding device is used for conveying urea particles to the stirring and dissolving tank; the stirring and dissolving tank is used for mixing and stirring the heated ultrapure water and urea particles into a urea solution; the urea solution filtering device comprises a precision filter and ultrafiltration equipment which are connected in sequence, and is used for filtering the urea solution; wherein the precision filter is used for intercepting fine particles and mechanical impurities and ensuring that the granularity of water entering the ultrafiltration equipment is less than 0.22 mu m, and the ultrafiltration equipment is used for further purifying suspended solids and impurities in a urea solution; the finished urea box is used for storing the filtered urea solution; and the automatic control system is used for controlling the operation of the whole system. According to the system, fine particles, impurities, suspended solids and the like are removed, and the crystallization risk is reduced.

The utility model discloses a kind of circulating filter devices for water pollution treatment, it is related to water pollution treatment technical field, including substrate, substrate upper surface middle part is fixedly connected with treatment pond, treatment pond is divided into first circulating pond and second circulating pond by partition, first self-priming pump is fixedly installed on the upper surface of substrate in the right end of treatment pond front side, the input end of first self-priming pump is connected with second circulating pond by first water inlet pipe, filter assembly is fixedly installed on the upper surface of substrate in the left end of treatment pond front side, the output end of first self-priming pump is connected with filter assembly by first water outlet pipe, second self-priming pump is fixedly connected with on the upper surface of substrate in the left side of treatment pond, the input end of second self-priming pump is connected with first circulating pond by second water inlet pipe.Advantage lies in: by separating treatment pond into first, second circulating pond, sewage is circulated between two ponds by first self-priming pump and second self-priming pump, this repeated filtering process.

A cyclone defoamer for a fermenter, characterized by comprising a disc baffle and a cyclone defoaming ring. The disc baffle is located at the center of the cyclone defoamer, and the cyclone defoaming ring is fixed to the outer periphery of the disc baffle. The disc baffle is coaxially fixed to the central stirring shaft of the fermenter. The cyclone defoaming ring has a multi-layered butterfly structure, with the interior of the butterfly shell divided into multiple cyclone channels by circumferentially distributed baffles. Each layer of the cyclone defoaming ring has a radial foam inlet on its inner periphery and a radial outlet on its outer periphery. Several foam inlet windows are axially opened on the upper surface, and baffles are provided at the foam inlet windows to facilitate foam entry. This invention features a reasonable structure, good defoaming effect, high efficiency and energy saving, meets GMP requirements, and is easy to clean and sterilize, does not accumulate material, and has no risk of contamination.