38 results about "Feed pressure" patented technology

Described herein are novel construction material compositions, systems, and methods for manufacturing the same. Biocement technologies that monitor and adjust environmental and process controls during the manufacturing of biocement products are described. In some cases, during manufacturing of a construction material various manufacturing parameters including feed rate, feed pressure, feed molarity, feed rate profile, feed pH level, temperature, humidity, the percentage of fine limestone within an aggregate mix, the thickness of a pre-feed crust layer may be set and / or adjusted over time to reduce manufacturing time and to improve the structural integrity of a construction material.

The utility model discloses an inflating device for an O-shaped inflating bag with double inflating ports. The inflating device comprises a shell and two inflating components, the inflation assembly comprises an inflation pipe arranged at the upper end of the shell, two pairs of inflation pressing wheels and a pair of feeding pressing wheels, wherein the two pairs of inflation pressing wheels and the pair of feeding pressing wheels are sequentially arranged in the axial direction of the inflation pipe. A plurality of inflation holes are formed in the upper end of the inflation pipe and located between the two pairs of inflation pressing wheels. A cutting knife is arranged between the feeding pressing wheel and the inflation pressing wheel. A lateral air groove is formed in the side surface of the inflating pipe; one end of the cutting knife is located in the lateral air groove, and the other end of the cutting knife is arranged at the upper end of the shell. The two inflation assemblies inflate the O-shaped inflation bag with two independent inflation openings at the same time, the independent feeding pressing wheels are arranged in the follow-up direction of the two pairs of inflation pressing wheels and used for traction conveying, meanwhile, the cutting knife is arranged between the feeding pressing wheels and the inflation pressing wheels, and it is guaranteed that two packaging edges of the O-shaped inflation bag are evenly stressed and synchronously fed.

The utility model discloses a filter device, wherein the filter device, including: filter, heating device and diaphragm pump, filter inside is provided with filter space, and heating device is used for providing heat for filter space. The discharge port of diaphragm pump is communicated with the feed inlet of filter through pipeline, and diaphragm pump is used to provide the feed pressure required for filtering to filter. Through setting up diaphragm pump, use diaphragm pump to transport material, replace traditional compressed nitrogen as feed pressure source, and diaphragm pump can accurately adjust output pressure according to the actual filtering demand of filter, and the energy consumption of diaphragm pump itself is lower than nitrogen conveying system, reduces energy consumption, and reduces the cost of production preparation. At the same time, diaphragm pump forms closed loop pressure control with filter through pipeline, does not need manual monitoring pressure gauge, manual adjustment nitrogen supply, and the operation is more convenient, adapts to automatic production.

The utility model discloses a kind of terephthalic acid filtering devices, including shell, the shell is installed on external equipment, pressure regulating mechanism is provided on the shell, the pressure regulating mechanism includes water inlet pipe, spacer, filter bag and water outlet pipe, the water inlet pipe and water outlet pipe are respectively installed in the both sides of the shell, the spacer is installed in the shell, the water inlet pipe is connected in the upper layer of spacer, the water outlet pipe is connected in the lower layer of spacer, overflow pipe is equipped with on the water inlet pipe, this innovative terephthalic acid filtering device is through the intelligent pressure regulating system of careful design, effectively solve the technical problem that filter bag in traditional equipment is damaged due to pressure fluctuation, realizes the safe and stable operation of production process, and its core technical advantage lies in introducing an automatic pressure regulating mechanism, can respond to the fluctuation of feed pressure in real time, and automatically start pressure relief protection when pressure exceeds safety threshold.

The utility model discloses a special core rod for a disc-type high-efficiency filter, which comprises a core rod body, eight material grooves are arranged on the surface of the core rod body, the top ends and the bottom ends of the material grooves are twisted at an angle, a connecting port is arranged at the top end of the core rod body, and the top end of the core rod body is communicated with the connecting port through a connecting groove. According to the utility model, the micro-spiral material groove is arranged, when in use, a melt spirally advances along the material groove, and then enters the connecting port through the connecting groove, so that the feeding pressure is closer to the discharging pressure, the feeding of the die is more sufficient, and the defects of overlarge film thickness fluctuation, water marks and the like caused by insufficient die pressure during extrusion are avoided; and the film-forming yield and quality are improved.

The invention relates to vacuum-assisted constant-speed feeding pressure impregnation automatic equipment and a use method. The vacuum-assisted constant-speed feeding pressure impregnation automatic equipment comprises a material storage tank, an impregnation mold and an overflow material tank, a flow divider is arranged between the material storage tank and the dipping mold, a feeding port of the dipping mold is communicated with a discharging port of the flow divider through a feeding pipe, a feeding port of a material distributor is communicated with a discharging port of the material storage tank through a discharging pipe, and the discharging pipe is connected with the discharging port of the material storage tank through a discharging port valve; and one end of the anti-infiltration pipeline is communicated with the discharging pipe, and the other end of the anti-infiltration pipeline is communicated with the feeding pipe. By arranging the flow divider, constant-speed impregnation of a plurality of impregnation molds is ensured, and the consistency of impregnation parameters in the impregnation molds is improved; the resin flows back and forth in the dipping mold after pouring, so that the product blank in the dipping mold is more fully dipped, the dipping effect is improved, and the quality of the dipped product is improved.

This invention provides a bearing press-fitting device for an external rotor fan, belonging to the technical field of fan assembly equipment. It solves the technical problems of low automation and easy bearing damage in existing external rotor fan bearing press-fitting equipment. In this bearing press-fitting device, a feeding chute is provided along the length of the feeding seat. A discharge hole is provided on the bottom of the right side of the feeding chute. The discharge hole is coaxially arranged with the rotor positioning seat and the feeding pressure rod. The feeding pipe has an inner hole for storing the bearing. The feeding pipe is fixedly connected to the feeding seat, and the inner hole of the feeding pipe communicates with the feeding chute. The feeding pusher plate can push the bearing from below the feeding pipe to the right side of the feeding chute. The feeding baffle can cooperate with the feeding pusher plate to fix the bearing above the discharge hole. This invention achieves automatic bearing feeding through the cooperation of the feeding pipe, feeding pusher plate, and feeding baffle, and achieves bearing press-fitting through the feeding pressure rod, realizing automatic bearing feeding and automatic press-fitting with high production efficiency.

The invention relates to a pressure control system, a method and an apparatus for controlling pressure. The pressure control system comprises at least one line and valve and the pressure control system controls the valve for arranging a desired pressure for at least one predetermined device. The pressure control system may comprise at least one pressure source (9), at least one pressure gauge (5) for measuring pressure and at least one pressure valve (7) for feeding pressure A from the pressure source, and a control unit for adjusting pressure B, which is lower than the pressure A, to a desired value based on a measurement of the pressure gauge in a process line of the pressure control system, and at least one valve (3,15,16) for supplying the pressure B from the process line to the predetermined device (1).

The utility model relates to the technical field of boiler water supply, in particular to a boiler water supply pressure stabilizing device which comprises a fixing seat and a boiler water supply pump, a carbon steel pressure stabilizing tank is fixedly connected to the inner wall face of the fixing seat, and a water inlet pipe is fixedly installed on the upper portion of the outer surface of the boiler water supply pump in a penetrating mode. An input pipe is fixedly installed in the middle of the right end of the boiler water feeding pump in a penetrating mode, the right end of the input pipe is fixedly connected with the lower portion of the left end of the carbon steel surge tank in a penetrating mode, a check valve is movably installed on the right portion of the outer surface of the input pipe in a penetrating mode, and a water feeding pressure stabilizing set is fixedly connected to the middle of the inner wall face of the carbon steel surge tank. According to the boiler water supply pressure stabilizing device, the carbon steel pressure stabilizing tank and the water supply pressure stabilizing set inside the carbon steel pressure stabilizing tank are arranged, water flow entering the device is buffered and adjusted in a multiple mode, the water flow is decelerated and dispersed in sequence, the flow direction of the water flow is changed, the water flow is more stable in the carbon steel pressure stabilizing tank, impact and fluctuation of the water flow are effectively reduced, and the service life of the water supply pressure stabilizing device is prolonged. Therefore, the pressure output to the boiler water supply pipe network is stabilized.

This invention relates to the field of vanadium chemical metallurgy technology, and discloses a method for controlling the moisture content of ammonium polyvanadate in plate and frame filter presses. The method includes the following steps: starting the feed pump to deliver ammonium polyvanadate slurry into the plate and frame filter press; continuing to feed after the feed pressure reaches a set threshold to compact the filter cake; dewatering the filter cake by blowing air; after the blowing process is completed, first controlling the main hydraulic cylinder to slightly retract to loosen the filter plates, maintaining this slightly loose state for a preset time to drain any remaining water from the plates and frames, then completely loosening the plates and frames and unloading the material. This invention also provides an ammonium polyvanadate product. The method of this invention solves the problems of high filter cake moisture content, fluctuating dewatering effect, insufficient blowing efficiency, backflow during unloading, and blockage in subsequent conveying processes during existing plate and frame filter presses, achieving stable control of filter cake moisture content.

The utility model relates to a feeding pressure stabilizing device which comprises a buffer assembly, a plurality of plunger pumps and a plurality of filter presses, a containing cavity used for containing materials is defined in the buffer assembly, and the buffer assembly is provided with a discharging port and a feeding port which are communicated with the containing cavity. The discharge port and the feed port are respectively connected with a feed pipe and a discharge pipe; the discharging ends of the plunger pumps are connected in series and connected with the end, away from the buffer assembly, of the feeding pipe; and the feed ports of the plurality of filter presses are connected with one end, far away from the buffer assembly, of the discharge pipe. According to the technical scheme, the buffer assembly is ingeniously used for buffering and absorbing pressure fluctuation generated in the working process of the plunger pump, it is ensured that the pressure of the filter press is balanced, manual dredging is not needed, normal production is ensured, and the production efficiency is improved.

A spiral wound membrane module has a brackish water RO or NF membrane combined with a permeate carrier having a narrow spacing between membrane contacting elements. The membrane may have water permeability (A-Value) of at least 8*10−5 cm / s / bar at 25° C. The membrane may have salt diffusion rate (B-Value) of at least 0.5*10−5 cm / s at 25° C. The permeate carrier may have a density of 54 wales per inch or more of a gap between adjacent ribs of 215 um or less. The permeate carrier may have a channel cross-sectional area of 16*10−9 m2 or more. Water is fed to the module at a high feed pressure, for example a pressure of at least 50 bar, optionally up to 120 bar. Retentate may be discharged at a concentration of 100 g / L, 130 g / L, or 150 g / L or more.

The invention discloses an automatic control method of an improved diaphragm plate-and-frame filter press, which comprises the following steps: S1, after a machine head is pressed, opening a feed valve and a first control valve of a water replenishing pipe of a squeezing water tank, and adjusting a switch by a second control valve according to the liquid level of the water tank; the feeding pump is manually started, and when the feeding pressure reaches a set value, the feeding pump automatically stops, and the feeding valve and the first control valve are closed; s2, closing a squeezing water return valve, starting a squeezing water pump, opening a squeezing pump outlet one-way valve and a squeezing pump, after squeezing is finished, stopping the squeezing water pump, closing the squeezing pump outlet one-way valve, opening the squeezing water return valve, and measuring and controlling a water tank return valve and a discharge valve according to an online turbidity meter; the device has the beneficial effects that sludge is effectively prevented from blocking a compressed air pipeline, when it is detected that the water quality is abnormal, squeezed water containing sludge can be automatically drained to a pit, and the vicious circle that filter plate diaphragms are damaged due to recycling of the squeezed water is avoided.

The utility model relates to the technical field of conveying devices, and discloses feeding equipment for plastic particles, which comprises a support frame and a connecting seat, a feeding hopper is fixedly mounted at the upper part of the connecting seat, a conveying pipe is fixedly mounted in a manner of penetrating through the connecting seat, a driving motor is fixedly mounted on one side of the conveying pipe, and the driving motor is fixedly mounted on the other side of the conveying pipe. By controlling the special-shaped base and the dredging plate, plastic particles in the feeding hopper can be turned over during equipment operation, blockage caused by too fast material injection is avoided, the feeding pressure of the spiral plate can be relieved, the feeding efficiency of the plastic particles is improved, meanwhile, the dredging plate is adjusted on the supporting column and fixed through the fastening bolt, and the dredging plate is convenient to use. And the feeding rate of the plastic particles can be adjusted, feeding of the plastic particles is more uniform under the action of a dredging plate, and the practicability of the equipment is greatly improved.

The utility model discloses a feeding pressure regulating device which comprises a shell, an end cover is detachably installed on the top of the shell, a pressure regulating cavity communicated with an inner cavity of the shell is formed in the top of the shell, a throttling piece is arranged in the pressure regulating cavity, a piston cavity is formed in the bottom of the end cover, and a piston is arranged in the piston cavity. The pressure adjusting structure is arranged at the discharging end connected with equipment, the pressure adjusting device is used for adjusting pressure difference according to different working conditions and requirements, the pressure adjusting structure is arranged at the discharging end connected with the equipment, the pressure adjusting device is arranged at the discharging end of the equipment, the pressure adjusting device is arranged at the discharging end of the equipment, the pressure adjusting device is arranged at the discharging end of the equipment, and the pressure adjusting device is arranged at the discharging end of the equipment. According to the size of polyurethane raw material particles, the suction force of the feeding device is flexibly adjusted, the situation that materials are blocked in the feeding pipe is avoided, the feeding speed and efficiency of processing equipment are improved, and convenience is provided for work and use of a user.

The application discloses a kind of through-wall fire extinguishing device and its using method, belong to fire-fighting equipment field.The device includes supporting assembly and fire extinguishing assembly;Fire extinguishing assembly includes first shaft cylinder, coaxial sleeve is arranged on the outside of first shaft cylinder and can rotate and axially slide second shaft cylinder, perforator and rotating disc.Fire extinguishing assembly is configured with first flow path drive rotating disc rotation, second flow path guides fire extinguishing fluid to at least part by rotating disc defined feed pressure chamber to drive axial feed, and third flow path is open when feeding to predetermined position, so that fire extinguishing fluid is sprayed outward through perforator.The application is compact in structure, reliable to start under low water pressure, automatically feed and automatically spray water after drilling, suitable for limited space.

The present application relates to the technical field of slope stability, and particularly relates to a contraction joint cutting device for channel slope protection technology and a construction method thereof, which reflects concrete strength fluctuation according to a feed speed difference value and a cutting pressure, adjusts a cutting depth and an initial rotating speed according to the feed speed difference value; determines whether the channel slope protection has a concave-convex surface according to changes in the feed pressure and actual rotating speed; determines a concave-convex surface type according to a current feed pressure and a historical feed pressure, and adjusts the cutting depth according to the concave-convex surface type; determines whether a joint slot edge produces edge collapse according to an extracted curvature radius of the joint slot; determines whether the joint slot of the contraction joint is in channel slope protection convex surface edge collapse according to an initial detection period, determines whether the moving speed and the rotating speed of the cutting device are matched, and reduces the initial moving speed or the initial detection period of the cutting device. The present application enhances the anti-deformation ability and stability of the channel slope protection structure through accurate cutting of the contraction joint, and prevents slope landslide or frost heaving damage.

The application discloses a shrinkage-preventing valve body casting mold and relates to the technical field of valve body casting molds. The mold comprises an upper mold and a lower mold, and further comprises a shrinkage-preventing mechanism. An upper mold cavity is formed in the upper mold, a lower mold cavity is formed in the lower mold, an upper cooling runner is formed in the upper mold, and a lower cooling runner is formed in the lower mold. The shrinkage-preventing mechanism comprises a gentle curved surface formed in the inner wall of the lower cooling runner. In the application, directional cooling from bottom to top and local temperature control of hot spot positions are adopted to guide the sequential solidification of the casting from the positions far from the riser to the riser direction, ensure the smoothness of the feeding channel, and combine the double pressure feeding mechanism of spring pressurization and cooling liquid storage pressure to upgrade the traditional passive gravity feeding to active pressure feeding, greatly improve the feeding efficiency and feeding pressure, and force the metal liquid to penetrate into the interdendritic shrinkage area, so that the valve body casting with extremely compact internal structure is obtained.

The utility model discloses a raw material batching device capable of improving clinker strength, which relates to the technical field of raw material batching devices and comprises a batching box, feeding pipelines and a mixing mechanism, and the two sides of the top end of the batching box are in butt joint with the feeding pipelines. When the raw material batching device capable of improving the clinker strength is used, materials can be subjected to multidirectional stirring force in the batching box through the mixing mechanism, so that the materials are more uniformly dispersed in the device, the turbulence effect in the stirring process can be enhanced, the uniformity and efficiency of material mixing are improved, and the mixing period is shortened; and the interior of the feeding pipeline is divided into four small spaces, so that only materials in a single space enter the batching box in unit time, the feeding pressure is relieved, the feeding pipeline is prevented from being blocked due to too large feeding pressure, and therefore when the raw material batching device capable of improving the clinker strength is used, the clinker strength is improved. The effects of conveniently relieving the feeding pressure and improving the mixing efficiency are achieved.

The invention discloses a mud treatment device special for preventing water pollution, and relates to the technical field of mud treatment, the mud treatment device comprises a filter press body, a guide rail fixedly connected to the filter press body, a filter plate slidably connected to the guide rail, and a first assembly; a cross rail for moving the position regulator is arranged on the filter press body; an embedded block composed of a cylindrical bowl shell and a convex column is adopted; a column cavity groove is formed in the clamping piece; the design that the column cavity groove is matched with the convex column in the embedded block can effectively realize bidirectional limiting and fixing and avoid the misplacement risk of the filter plate, and on the basis that the clamping piece and the embedded block cannot be separated through the silica gel ball and the corrugated strip in the transverse direction, the longitudinal limiting effect is further achieved, and a bidirectional fixing structure capable of preventing separation in the transverse direction and preventing displacement in the longitudinal direction is formed; factors such as feeding pressure fluctuation and equipment operation vibration which cause filter plate dislocation can be effectively resisted, and the conditions of offset and staggering of the filter plate are effectively avoided.

A method (400) for controlling a regulating valve (206) of a packaging machine (100), wherein the packaging machine (100) is a roll-fed packaging machine configured to receive a roll of carton-based packaging material (102). The packaging machine (100) is connected via the regulating valve (206) to a processing line (202), which supplies a liquid food product (216) to the packaging machine (100) via the regulating valve (206). The method (400) includes measuring (S402) a product flow rate of the liquid food product in the packaging machine (100) using a flow meter (106) and measuring (S404) an inlet pressure measurement (306) of the liquid food product in the packaging machine (100) using a pressure sensor (204), using the inlet pressure measurement of the packaging machine (100) to adjust a control valve (206), the control valve being configured to receive an output signal of a flow feedforward module (308) in combination with an output signal of a flow proportional, integral, and derivative (PID) module (310), the flow feedforward module (308) having the inlet pressure measurement (306) and a flow setpoint as input signals, and the flow PID module (310) having the product flow rate and the flow setpoint as input signals.

The invention discloses a glass protective oil spraying coater, and belongs to the field of spraying, the glass protective oil spraying coater comprises supporting legs, the upper ends of the supporting legs are fixedly connected with two side baffles, and a feeding driving roller, a feeding driven roller, a detection roller, a discharging driven roller and a discharging driving roller are rotatably connected between the two side baffles from left to right; the side baffle is fixedly connected with a shell, the feeding driven roller, the detection roller and the discharging driven roller are arranged in the shell, and the upper end of the feeding driven roller is rotationally connected with a feeding pressing roller; compared with the prior art, the device has the advantages that whether materials exist below the spray head or not is automatically recognized through the detection roller, meanwhile, oil is supplied to the oil supply pipe on the upper side of the spray head through the inner oil pipe in the detection roller, full-automatic oil spraying is achieved, the labor cost is reduced, and the production efficiency is improved.

This invention discloses an adaptive decision-making method for drilling operation parameters based on feed damping and mechanical specific energy, comprising: S1: acquiring feed pressure, rotational speed, torque, and drilling speed as drilling parameters, and performing median filtering using a sliding window to obtain filtered drilling parameters; S2: calculating the feed damping coefficient, determining the range of variation of the feed damping coefficient, and converting the feed damping coefficient into an adaptive adjustment index; S3: calculating the mechanical specific energy, and combining it with the feed damping change rate to determine whether the direction of updating the operation parameters needs to be changed, and adjusting the parameter update flag; S4: deciding the final change value of the feed pressure based on the adaptive adjustment index and the parameter update flag. This invention designs an adaptive adjustment strategy for operation parameters based on the magnitude of the feed damping coefficient, and uses mechanical specific energy as a key indicator for evaluating the quality of operation parameters, achieving optimal drilling parameters under different geological conditions; experimental data shows that the proposed method can effectively reduce mechanical specific energy, achieving low-energy consumption and high-efficiency drilling.

The invention relates to the technical field of pipes, in particular to a preparation device and a preparation process of a steel wire silica gel pipe. The primary feeder is used for feeding the raw materials to the secondary feeder; the secondary feeding machine is connected with the primary feeding machine and used for receiving the raw materials fed by the primary feeding machine and enabling the feeding pressure to be larger and feeding to be more uniform; the machine head is connected with the secondary feeding machine and used for receiving the materials fed by the secondary feeding machine, and a steel wire shaping device is arranged in the machine head and used for shaping the steel wires and combining the steel wires with the materials; compared with a traditional technology, the preparation device and the preparation technology of the steel wire silica gel pipe have the advantages that operation links are saved, repeated processing and raw material waste are avoided, energy is saved, secondary pollution is prevented, and the preparation device and the preparation technology of the steel wire silica gel pipe have good application prospects.

The utility model discloses a column type hollow fiber microfiltration membrane component which comprises a membrane shell, a membrane filament packaging head is installed on the upper side of the membrane shell, an upper sealing head is installed at the upper end of the membrane filament packaging head, a lower sealing head is installed on the lower side of the membrane shell, the upper sealing head and the lower sealing head are connected through a hoop and are convenient to disassemble, a checking opening is formed in the lower end of the lower sealing head, and the checking opening is communicated with the membrane shell. The cleaning is convenient; the membrane column provided by the utility model is applied to interception of suspended solids after hardness is removed by a chemical method, and can also be applied to filtration and clarification of suspended solids of other water, feeding is carried out in a pressurizing manner, the defect of low feeding pressure is overcome, and the lower part of the membrane column is provided with a pollutant holding space, so that the membrane column has very high pollutant holding capacity.

The invention relates to the technical field of injection molds, in particular to a motorcycle dash panel injection mold, which is applied to the intelligent manufacturing equipment industry, and comprises a plurality of shunt pipes, injection branch nozzles, valve needles, a driving mechanism, a fixed mold and a movable mold, the injection branch nozzle is communicated with the fixed mold so as to convey a molten material to a cavity between the fixed mold and the movable mold, the valve needle is mounted in the injection branch nozzle, and the valve needle is driven by the driving mechanism to slide so as to adjust the pressure of the molten material entering the cavity between the fixed mold and the movable mold in three stages of initial, high-speed and cooling. The control unit is arranged on the arc-shaped conveying pipelines with the same length, and the control unit is used for controlling the feeding pressure of each stage, so that the purpose of uniformly filling the cavity between the movable mold and the fixed mold with the material is achieved.

This application belongs to the field of uranium isotope separation technology, and relates to an interstage magnetic levitation flow transport system and method for uranium isotope separation cascade systems. The device is connected as follows: the section feed line is connected to the magnetic levitation compressor, and the rear end of the magnetic levitation compressor is connected to the unit feed line; after the magnetic levitation compressor starts, the section feed pressure decreases, and the unit feed pressure increases, thereby realizing interstage pressurization and transmission in the uranium isotope separation cascade system. This application, by using a magnetic levitation compressor, eliminates the need for lubrication in traditional equipment, resulting in low energy consumption during operation and eliminating the need for cooling water, thus reducing operating and maintenance costs. Simultaneously, the application of the magnetic levitation compressor reduces noise from the pressurization equipment, improves the production environment, and further protects workers' occupational health.

The utility model provides an electric tool which comprises a main body mechanism, the main body mechanism comprises a shell, a driving mechanism is arranged in the shell, a first groove is formed in the first face of the shell, the first groove is used for containing a tool accessory, and the driving mechanism is used for driving the first tool accessory to move; the electric tool comprises an elastic piece and a guide rail, and the elastic piece is arranged in the guide rail. In the process that the first tool accessory machines a workpiece, elastic force generated by the elastic piece acts on the driving mechanism, and the driving mechanism and the first tool accessory move in the axial direction of the shell. And the guide rail limits the driving mechanism to swing left and right. The elastic piece provides feeding pressure for the first tool accessory, flexible transmission of the electric tool is achieved, the stroke difference between the driving mechanism and the first accessory can be effectively avoided, and the durability of the electric tool is effectively improved.

The application discloses a static spraying device for pallet fork production and relates to the technical field of pallet fork spraying. The static spraying device provides static spraying through a working assembly, and coating particles are directionally adsorbed on the surface of the pallet fork through an electrostatic field, so that the uniformity and availability of the coating are improved. The pallet fork is grounded as an anode, the rotary disc spray head is used as a cathode, an electrostatic generator forms a strong electric field between the rotary disc spray head and the pallet fork, the coating is electrified after being atomized by the rotary disc spray head, and the coating directionally flies to the surface of the pallet fork under the action of the electric field force, so that a uniform wet film is formed. The supply system composed of the diaphragm pump and the gear pump improves the anti-interference capability. The diaphragm pump provides stable feeding pressure for the gear pump, the gear pump accurately controls the feeding flow rate through stable rotating speed, and the gear pump provides uniform and continuous material supply for the rotary disc spray head. The pneumatic motor drives the rotary disc spray head to rotate at a high speed, liquid is dispersed into uniform and small droplets through centrifugal force, and the liquid is atomized.