1507 results about "Liquid surfaces" patented technology

The invention relates to a thickener based on an intelligent control mixed feeding apparatus. The thickener comprises a thickening tank and a feeding assembly for adding a flocculant into the thickening tank. A rotating shaft is arranged in the thickening tank. The surface of the rotating shaft is provided with grease scrapers attached to the liquid surface of a slurry, and the grease scrapers can rotate along with the rotating shaft to scrape off grease on the liquid surface. In the present invention, stirring paddles are driven to rotate by means of the rotating shaft, so as to stir the slurry, so as to generate bubbles in the slurry, allowing grease particles to be attached to the bubbles and rise to the liquid surface. A sliding piece is driven to rotate by means of the rotating shaft, so that the scrapers are driven to rotate, and together with an inclined surface, the grease rising to the liquid surface is scraped off, so that the grease can enter a cavity along the inclined surface and a grease inlet to be collected, so that the function of removing grease is achieved, and the thickening effect is improved.

The invention discloses a pouring machine flow control system based on multi-parameter feedback and PID dynamic adjustment, and relates to the technical field of automatic control of mold pouring, the system comprises a tilting parameter module, a liquid level dynamic modeling module, a flow adaptive control module and an execution mechanism module; the tilting parameter module collects the angular velocity and angle data of a casting ladle in real time, the liquid level dynamic modeling module calculates the liquid level height according to the angular velocity, the angle data and the geometrical shape of the casting ladle, and the flow self-adaptive control module dynamically calculates the current flow value. And the preset flow target and the real-time flow difference value are input into a PID controller to generate a tilting adjustment signal to drive an execution mechanism module to adjust the flow of the casting machine. The liquid level height and the flow are calculated through mechanical motion parameters, the problem that the sensor is in direct contact with liquid in the high-temperature and high-pressure environment and fails is solved, and stable operation in the severe environment is guaranteed; and adaptive PID control and a multi-parameter fusion model are used for cooperative work, so that the steady-state error is reduced, and the response speed is increased.

A leakage-proof wearable breast pump includes a milk bottle, a front cover, and a negative pressure chamber, the front cover and the negative pressure chamber are both arranged above the milk bottle and a connecting chamber is provided therebetween; the connecting chamber is provided above the bottle mouth of the milk bottle, a buffer chamber is provided between the milk bottle and the connecting chamber, and the buffer chamber is communicated with the milk bottle and the connecting chamber respectively. The user wears the breast pump to move, the liquid surface in the milk bottle will shake, thereby overflowing the bottle mouth or the vent hole. The buffer chamber can collect the milk overflowing and reflow it, thereby preventing leakage.

Various examples, systems, and methods relate to section transport and slide management of a robotic microtomy system. A system can include a tissue block holder holding a tissue block, a blade having a blade edge submerged in liquid and configured to cut a section of the tissue block, a section handling assembly including a member, and an actuator configured to cause the member of the section handling assembly to (i) move through the liquid underneath the section floating on a surface of the liquid and (ii) separate the section from the blade edge.

The invention provides a crystal growth device and a crystal growth method for separating crystals from melts, and solves the defect that polycrystals are easy to generate during crystal growth at present. The growth device comprises a heat preservation furnace, a heater, a crystal growth crucible, a lining crucible, a lifting mechanism, a ceramic lifting seat, pressing graphite, a heat conduction graphite ring and a heat preservation ring, the crystal growth crucible is coaxially arranged in the heat preservation furnace; the heater is coaxially arranged between the crystal growth crucible and the holding furnace; the lining crucible is coaxially arranged in the crystal growth crucible and comprises a crucible bottom plate, a melt transmission channel and a crucible main body which are coaxial and communicated from bottom to top; in order to reduce the influence of the melt on the crystal in the growth process, the crystal and the melt are physically separated, the growth device with the two crucibles is designed, and in consideration of the importance of stable crystal growth thermal field environment, heat transfer of the two crucibles is isolated through the heat preservation ring; the heat-conducting graphite is used for uniformizing the temperature of the center and the edge of the melt, and concave liquid surfaces are avoided.

The invention provides equipment for extracting aluminum and calcium from solid waste and a method for recovering valuable components. The solid waste recovery device comprises a bottom plate, a pedestal, an extraction tank, a treatment tank and an extraction mechanism, the pedestal is installed on the upper surface of the bottom plate, the outer wall of the extraction tank is installed on the inner wall of the pedestal, a water tank is installed on the upper surface of the bottom plate and located on one side of the pedestal, and the treatment tank is fixedly arranged on the upper surface of the water tank; according to the scheme, through system integration of hydrothermal acid leaching, multi-stage solid-liquid separation and leachate refining technologies, deep extraction and efficient utilization of valuable elements such as fluorine, sodium and aluminum are achieved, the resource recovery rate is remarkably increased, the high-temperature energy consumption mode of traditional pyrogenic process treatment is broken through, the energy consumption is reduced, and the energy consumption is reduced. And the convex plate continuously rotates to control the guide wheel to enable the lifting rod to do reciprocating lifting motion in the extraction tank, so that the liquid level vortex phenomenon caused by traditional rotation can be eliminated, and the top liquid level of the extraction tank is more stable.

The invention relates to the technical field of self-sucking pumps, in particular to an efficient vacuum energy-saving self-sucking pump which comprises a base, a first pump cavity, a motor, a rain baffle, a first impeller, a compensation assembly and a drainage assembly, the first pump cavity, the motor and the rain baffle are sequentially installed at the upper end of the base, and the first impeller is installed at the axis position in the first pump cavity; the drainage assembly is installed at the lower end of the first impeller, and the two compensation assemblies are installed in the drainage assembly. After the drainage assembly is started, the drainage assembly is used for guiding the liquid level to overflow the first impeller and removing large-particle solids in fluid, and the compensation assembly drives the first impeller to move downwards to reduce the gap when detecting that the gap between the first impeller and the inner wall of the first pump cavity is enlarged. The tip end of the blade is easily and continuously washed by solid particles, so that the flow and lift of the core pump are reduced, and the efficiency is obviously reduced.

The invention relates to a film covering process of a butyl rubber plug, which belongs to the technical field of butyl rubber plug preparation and is characterized in that during processing, in the same way as the prior art, a bonding surface of a film belt used for being bonded with a mixed rubber sheet needs to be activated, and then the bonding surface of the film belt is bonded with one side surface of an unvulcanized mixed rubber sheet; the film belt covers and is fixed on the mixing rubber sheet in an adhesion manner, and the key point is that in the covering and fixing process, the film belt is conveyed forwards in a manner of floating on a flowing liquid surface, and is attached and fixed with the mixing rubber sheet above the film belt in the conveying process, so that the film belt is prevented from being pulled by a conventional belt similar to a belt in belt transmission; and the film belt is prevented from being torn and damaged. The film laminating process can prevent the film belt from being torn due to mechanical traction and pulling as much as possible, and the processing process is convenient and reliable.

The invention discloses a separated interface photo-thermal catalytic hydrogen production reactor which comprises a liquid storage container, a conveying conduit and a reactor. The liquid storage container is used for accommodating a reaction solution; one end of the conveying conduit is arranged below the liquid level of the reaction solution; the reactor comprises a shell and a porous material arranged in the shell, a thin-layer space is formed by the porous material and the inner wall of the shell, and the thin-layer space is filled with a reaction solution conveyed by the conveying guide pipe to form a thin liquid film; capillary force provided by the porous material is used for sucking the reaction solution in the thin-layer space to the surface of the porous material to carry out photo-thermal catalytic hydrogen production reaction, and the reaction solution in the liquid storage container is supplemented into the thin-layer space through the conveying guide pipe. The reactor separates and decouples a light source and a water source, and is better in space adaptability. The reaction solution is separated from the bulk phase solution, the reaction interface temperature is higher, and the controllability is better. And the photo-thermal catalytic reaction area is not limited by the free liquid surface area of the solution and can be freely expanded.

The invention discloses an agricultural plant protection unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles. The agricultural plant protection unmanned aerial vehicle comprises a vehicle body provided with supporting legs and further comprises wings, the multiple wings are circumferentially and evenly arranged on the vehicle body, the tail end of each wing is provided with a fan blade driven by a motor, and the side, away from the fan blade, of each wing is provided with a nozzle; the water tank is arranged on the lower side of the machine body, and a feeding assembly for supplying water to the nozzles is arranged on the water tank; the anti-shaking assembly is arranged in the water tank and used for restraining water in the water tank from shaking; the movable floating plate capable of moving up and down along with the liquid level is attached to the liquid level all the time, the elastic element is used for buffering, shaking of liquid in flight is effectively restrained, and flight stability is guaranteed.

The invention relates to an efficient separation and extraction device for extracting rock asphalt from oil sand. The efficient separation and extraction device comprises a flotation tank, and an inflation stirring mechanism is arranged at the bottom end in the flotation tank; a foam tank is arranged in the center of the upper end of the flotation tank; a lifting defoaming device is arranged at the upper end of the foam tank; after the lifting defoaming device descends, the upper end of the foam tank is closed, and foam in the foam tank is subjected to all-directional scouring defoaming; a grating plate is arranged at the upper end of the liquid level in the flotation tank; wave blowing devices are arranged in the middles of two sides of the flotation tank; scraping mechanisms are respectively arranged at the upper end of the flotation tank and above the two grating plates; the scraping mechanism comprises a scraping plate, a sliding rail, a sliding block and a reciprocating driving assembly, the sliding rail is transversely arranged on the inner wall of the flotation tank, the scraping plate is arranged on the sliding block, and the sliding block is matched with the sliding rail to be horizontally arranged on the inner walls of the two ends of the flotation tank in a sliding mode and is driven by the reciprocating driving assembly. The scraping efficiency is improved, and the foam material containing asphalt particles can be quickly and efficiently separated and recycled.

The invention discloses a phosphorus trichloride production reaction kettle with a defoaming structure, and relates to the technical field of reaction kettles. According to the phosphorus trichloride production reaction kettle with the defoaming structure, through cooperation of the obliquely-installed sawtooth plates and the protruding strip rings, during rotation, the sawtooth plates drive foam on the liquid level to move towards the periphery, in the movement process, the foam on the liquid level is separated from the protruding strip rings, and the foam on the liquid level is removed. The sawteeth at the top of the sawtooth plate are in contact with accumulated foam, so that part of the foam is broken, the unbroken foam outwards impacts the inner wall of the convex strip ring under the action of centrifugal force, so that the foam is in contact with the convex strips uniformly arranged on the inner wall of the inner convex ring, and compared with a smooth inner wall of a traditional reaction kettle, the contact area is reduced when the convex strips of the inner convex ring are in contact with the foam; and the pressure during impact is increased, so that the foam is broken under higher pressure, and the defoaming effect is improved.

The utility model relates to a wafer cleaning tank, and belongs to the technical field of wafer production equipment. The air injection tank is arranged in the overflow tank, impurities floating on the liquid surface can be blown to the other side by the air injected from the air injection tank, the impurities floating on the treatment liquid are prevented from floating on the liquid surface all the time, the impurities can flow into the overflow tank along with water flow, and the wafer cleaning effect is improved.

The invention relates to the technical field of bean product processing, and discloses a defoaming device for bean product production and processing, the device comprises a base, a base plate and a discharging barrel, one side of the top of the base plate is fixedly provided with a device main body, one side of the device main body is fixedly provided with a processing cylinder, and the defoaming device further comprises an eliminating assembly arranged in the processing cylinder, vertical plate parts are symmetrically and fixedly connected to the top of the base, a feeding assembly is arranged between the two vertical plate parts, the eliminating assembly comprises a longitudinal plate fixedly installed on the upper portion of the interior of the processing barrel, a driving motor is fixedly installed at the top of the longitudinal plate, and a rotating shaft is fixedly connected to the output end of the driving motor; and a central fan blade and a side gear are fixedly connected to the outer side of the rotating shaft, so that the problems that only a small amount of large bubbles are punctured by the tip of the device, and most of the bubbles are still likely to remain on the liquid level position, so that the bubble eliminating effect is reduced, and the subsequent bean product processing quality and taste are influenced are solved.

The invention belongs to an aviation fuel oil sampling method, and discloses an aviation fuel oil storage tank sampling method which is used for sampling an aviation fuel oil storage tank based on sampling equipment with air compression equipment. The method comprises the following steps: firstly, determining information of oil storage tanks subjected to sampling monitoring, and sampling at a plurality of different liquid levels below the liquid level in the oil storage tank at the top of each determined oil storage tank through a telescopic sampling device under negative pressure; then determining a sampling plan, regularly carrying out multi-layer mixed sampling on each oil storage tank according to the sampling plan, and mixing oil sampled each time in sampling equipment according to each liquid level in an equal proportion during mixed sampling; the collector is carried by an operator, so that the mixed and sampled oil is stored at each oil storage tank completing single sampling through the externally mounted collector; and after the collector is taken down and sampling is completed, nitrogen is introduced in the direction from the sampling equipment to the oil storage tank, and the oil detained in the sampling equipment is sent back to the oil storage tank. The method is simple, practical and low in cost.

The invention belongs to the technical field of high-precision liquid level detection, and particularly relates to a high-precision liquid level detection method which comprises an installation preparation module, an installation position determination module, a comprehensive consideration module and a special installation method module. And the liquid level detection precision can be obviously improved. The photoelectric sensor is sensitive to light change and suitable for directly detecting the liquid surface; the ultrasonic sensor determines the distance by measuring the propagation time of sound waves, and is relatively insensitive to the change of liquid properties. The combination of the two can complement deficiencies and reduce errors.

The present invention relates to the technical field of cutting fluid recovery and treatment, and discloses a workstation for multi-stage treatment of cutting fluid, the device comprising a secondary liquid tank, a separator, a chip collection vehicle, a primary liquid tank and a cleaning box fixedly installed in the middle of the top of the secondary liquid tank, a separation box fixedly installed on one side of the cleaning box, and further comprising: a tertiary liquid tank fixedly installed on the top of the cleaning box, a conveying assembly provided on one side of the separator, a cleaning assembly provided inside the separation box, and a filter press assembly provided on the top of the tertiary liquid tank; the conveying assembly comprises a mounting groove and a conveying chain plate fixedly installed inside the mounting groove, and a mounting plate is symmetrically fixedly connected to the top of the mounting groove, which solves the problem that after the cutting fluid brings chips into the water tank, cast iron and powdery chips are deposited in various corners of the water tank, and fine needle-shaped and flaky chips float on the liquid surface, affecting the normal operation of the water tank.

The invention provides a water-gas interface gas collecting device and a monitoring method, and the collecting device comprises a floating part which is constructed to be annular and floats on a liquid surface; the framework extends upwards from the floating part; the membrane structure is arranged on the framework and is suitable for enclosing a flux box with a top opening with the framework part and the floating part; the zero gas supply unit is suitable for supplying zero gas to a water-gas interface positioned in the flux box, so that to-be-detected gas from the water-gas interface moves upwards; and the collection unit is arranged at the upper part of the flux box and is suitable for collecting mixed gas containing zero gas and gas to be detected.

The utility model discloses a water level detection device, a water level indicating device and a water dispenser, and relates to the technical field of water level detection. The water level detection device comprises a water level to-be-detected mechanism, a water level detection mechanism and a water level detection mechanism, the water level to-be-detected mechanism is provided with a drainage mechanism used for draining water in the to-be-detected mechanism, and an ultrasonic ranging assembly used for detecting the water level value in the water level to-be-detected mechanism in the drainage process of the drainage mechanism is arranged on the upper side of the liquid level of the water in the water level to-be-detected mechanism. The water level to-be-detected mechanism comprises a container used for containing water and a container cover arranged on the container. The drainage mechanism is arranged on the container cover; the drainage mechanism is provided with a tubular structure, and one end of the drainage mechanism of the tubular structure penetrates through the container cover to be arranged at the bottom of the container. And water level detection can be realized.

The invention discloses an on-line prediction method for slab slag entrapment defects, which comprises the following steps: collecting process data in real time in a slab continuous casting production process, and obtaining submersed nozzle data and crystallizer data, thereby obtaining the maximum flow velocity of the liquid level in a crystallizer and the pulling heat per ton of steel at the corresponding moment; the slag entrapment critical threshold value is determined according to the occurrence frequency of the slab slag entrapment defect in historical production data, then the ratio of the maximum liquid level flow rate to the heat extraction amount per ton of steel is compared with the slag entrapment critical threshold value, and accordingly whether the slab has the slag entrapment defect or not is judged. According to the invention, real-time judgment and forecast of the slag entrapment fault of the crystallizer in field production can be realized, and smooth operation of a continuous casting process and guidance of treatment before rolling are facilitated.

The invention relates to the technical field of separation and purification devices, in particular to a separation and purification device for 8-hydroxyquinoline crystallization. The device comprises a crystallization kettle used for cooling an 8-hydroxyquinoline solution, a stirring assembly is arranged in the crystallization kettle, the stirring assembly is provided with a plurality of cleaning assemblies in the radial direction of the crystallization kettle, each cleaning assembly comprises a scraping part and a pneumatic part, the scraping parts are slidably connected to the side, close to the inner wall of the crystallization kettle, of the stirring assembly, and the pneumatic parts are arranged on the scraping parts. The pneumatic part is used for pushing the scraping part to be close to the inner wall of the crystallization kettle; the increased air pressure in the pressure-bearing cavity pushes the pressure-bearing plate to slide towards one side close to the contraction groove, the telescopic arm is pushed out of the contraction groove through the sliding rod, and due to the fact that large air pressure is accumulated in the pressure-bearing cavity before the telescopic arm stretches out of the contraction groove, the conical part is inserted into the crystal above the liquid level at the moment that the top of the contraction groove is completely out of shielding of the installation groove. The telescopic arm instantly releases large force, and it can be ensured that the conical part is inserted into crystals tightly combined with the inner wall of the crystallization kettle.

The invention relates to a buffer storage tank for chemical raw materials, which belongs to the technical field of chemical storage tanks and comprises a tank body and a tank cover module. A telescopic module is arranged in the tank body and connected with the tank cover module in a matched mode, and the tank cover module can drive the telescopic module to be folded and unfolded step by step. A partition plate module is arranged on the telescopic module; after the telescopic module drives the partition plate module to unfold, the partition plate module can divide the internal space of the tank body into a plurality of cavities; and a floating plate assembly is arranged on the tank cover module. The partition plate module can divide the tank body into a plurality of chambers according to the liquid storage amount, it is guaranteed that the chambers fully restrain the stored liquid, and the shaking amplitude of the stored liquid is remarkably reduced; meanwhile, the spoiler can prevent the liquid from flowing in the chamber, so that the shaking amplitude of the stored liquid is reduced; the partition plate module and the telescopic module can reduce energy generated by liquid shaking by utilizing elastic potential energy through a tension spring and a damping valve; the floating plate module can be dynamically attached to the liquid surface of the storage tank, wave impact caused by liquid fluctuation is blocked, and the inner wall of the tank body is prevented from being slapped by the liquid surface.

The utility model relates to a breast pump. The breast pump comprises a floating assembly and a detection assembly. When milk is loaded in the milk storage assembly, at least part of the floating assembly floats on the liquid level of the milk in the milk storage assembly; the detection assembly is used for detecting position information of the floating assembly floating on the milk liquid surface. In the milk sucking process of the breast pump, the height of the milk liquid level in the milk storage assembly is increased along with increase of the amount of milk in the milk storage assembly, the height of the floating assembly floating on the milk liquid level changes, then the floating assembly gets close to or away from the detection assembly under guiding of the guiding piece, detection data of the detection assembly is changed, and the detection accuracy of the breast pump is improved. Therefore, the milk level height and the milk amount in the milk storage assembly are calculated according to data detected by the detection assembly.

A device for culturing a photosynthetic organism of the present invention includes: a culture tank for accommodating a culture medium containing a photosynthetic organism; and a liquid dispersion portion provided inside the culture tank. Here, the liquid dispersion portion includes one rotary shaft disposed along a vertical direction and at least one liquid flow member attached to the rotary shaft, the liquid flow member includes an ejection portion positioned above a liquid surface of the culture medium, a suction portion positioned below the liquid surface of the culture medium, and a flow path extending between the ejection portion and the suction portion and allowing the culture medium to flow therethrough, and at least a part of the culture tank includes a light-transmitting portion that allows transmission of light from the outside into the inside of the culture tank.

This application relates to an isolated detection system and detection method for the liquid nitrogen liquid level height based on differential pressure calculation. By simulating and calculating the air pressure height difference between the liquid bottom and the liquid surface of the liquid nitrogen tank, a differential pressure signal between the return air pipe 3 and the gas measuring pipe is obtained, and the air pressure height difference between the liquid bottom and the liquid surface of the liquid nitrogen tank is calculated based on the pressure formula, so as to obtain the height position of the liquid nitrogen in the liquid nitrogen tank and perform liquid replenishment control. The differential pressure measurement system is completely isolated from the outside of the liquid nitrogen tank, eliminating the extremely harsh environment inside the tank and ensuring the long-term stable operation of the measurement equipment; the high-precision differential pressure measurement unit can accurately measure the liquid nitrogen height within the range of 1 millimeter, with high precision; only by inserting the gas measuring pipe to the lowest position of the liquid level, the detection of the corresponding range can be automatically matched without adding any circuit, and the measuring range is adjustable; it is suitable for the liquid level measurement of any sealed or unsealed tank or even a tankless situation, avoiding the short circuit of internal electronic equipment and being struck by lightning.

A container for pressurized liquid gas, such as LPG or LNG, having an opening leading from outside to inside of the container and having a microwave fluid level sensor mounted on the outside of the container over the opening and configured to emit a microwave beam towards the inside of the container and to receive a microwave beam reflected from the surface of the liquid inside the container. Between the microwave fluid level sensor and the inside of the container there is a lid closing the opening, wherein the lid is made of plastic material capable of transmitting at least a part of the microwave beams.

The invention provides an offshore floating type platform PEM hydrogen production gas-liquid separation device which comprises a separator, a first outlet pipe is arranged at the top of the separator, a second outlet pipe is arranged at the bottom of the separator, and an inlet pipe is arranged on one side of the separator; the first separation part is obliquely arranged in the separator, and a plurality of first mesh holes are formed in the first separation part; the second separation part is arranged in the radial direction of the separator and located above the first separation part, and second mesh holes are formed in the second separation part; the separator has a large length-diameter ratio, the first separation piece and the second separation piece are matched with the separator with the large length-diameter ratio, the fluctuation area of the liquid level during shaking is reduced, the stability of the separation efficiency is further guaranteed, it is guaranteed that oxygen can be safely discharged, and the problem that liquid enters an oxygen pipeline to damage an instrument is solved.

The invention provides a drilling fluid outlet flow anti-disturbance monitoring method and device, a medium and a program product, and the method comprises the steps: obtaining a liquid level echo signal through a millimeter-wave radar liquid level meter installed above a drilling fluid outlet buffer tank, and inhibiting an environment interference factor through time domain and frequency domain fusion adaptive filtering of dynamically adjusting a weight according to a signal-to-noise ratio; inputting the filtering signal into a BP neural network to obtain phase information influenced by the liquid level disturbance interference factor, and combining a physical information neural network to obtain a radar wave attenuation coefficient corresponding to the phase information; on the basis of a liquid level fluctuation and radar echo attenuation quantitative model, liquid level height variation is obtained by integrating phase information and radar wave attenuation coefficient inversion calculation, the current liquid level height is obtained by combining the liquid level height with radar ranging liquid level height, and the relative flow change of the drilling fluid in the buffer tank is judged. High-precision flow monitoring is achieved under the conditions of liquid level disturbance and environment disturbance, and well control safety and the intelligent level of drilling operation are improved.

The invention discloses a movable flood drainage robot and a flood drainage method, and relates to the field of fire fighting equipment application. The movable flood drainage robot comprises track driving systems, a mounting frame is arranged between the track driving systems, a water pump is mounted at the top of the mounting frame, a water inlet is formed in one side of the water pump, and a soft water conveying pipe is arranged at the water inlet and connected with a movable water inlet pipe; the movable water pipe can be adjusted in height and rotated. By arranging the movable water inlet pipe capable of movably ascending, descending and rotating, the water pumping efficiency can be ensured, the situation that sludge, leaves and other impurities enter the water pump can be reduced, the movable water inlet pipe is adjusted to the position about 15-20 cm below the accumulated water liquid level through the lifting assembly, and the height of the movable water inlet pipe is synchronously reduced along with reduction of the liquid level; impurities floating on the liquid level are located above the movable water inlet pipe all the time and not prone to entering the water pump, when the movable water inlet pipe descends to the lowest working height, the movable water inlet pipe can turn over by 90 degrees to be perpendicular to the ground, and the impurities floating on the liquid level can be reduced and enter the water pump due to the filtering effect of the filtering assembly.

According to the needleless electrostatic spinning solution box, a solution storage tank (03) is arranged in a solution box body, when an electrostatic spinning electrode (04) rotates along with a rotating shaft of the electrostatic spinning electrode (04), the head of the electrode can enter the lower portion of the liquid level from the upper portion of the liquid level of the solution storage tank (03) or rotate to the upper portion of the liquid level from the lower portion of the liquid level; the bottom of the liquid storage tank (03) is provided with a liquid homogenizing tank (01) which is in one-way communication with the liquid storage tank, and a spinning solution in the liquid homogenizing tank (01) comes from a liquid supply pipe (07) connected with the liquid homogenizing tank (01); a scraping plate (05) capable of scraping a residual solution on the electrode head of the rotating electrostatic spinning electrode (04) is arranged at the bottom or the wall of the liquid storage tank (03); residual solution scraped by the scraping plate (05) is collected in a liquid discharging groove (09), and the liquid discharging groove (09) is connected with a liquid pumping pipe (08) capable of discharging the collected solution.