42 results about "Bubble bursting" patented technology

A descaling device used to remove scales deposited on the inside of a shell and tube heat exchanger type steam generator, comprising a flexible lance which holds high-pressure water hose and is movable relative to tube plates, tube supporting plates, and heat-transfer pipes and a washing head installed at the tip of the flexible lance, wherein cavitation generating two nozzle holes communicating with the high-pressure water hoses are formed inside the washing head, whereby air bubbles are produced at the time of washing and an impact pressure produced when these bubbles burst is propagated so as to eliminate scales over a wide range.

The invention relates to a system and a method for treating gases containing VOC and in particular relates to a system and a method for treating gases containing VOC. According to the system and the method, any oxidant does not need to be added, and the treatment cost is low. According to the device, molecular bonds of organic compounds are broken by utilizing a local high-temperature high-pressure environment generated during nanoscale bubble bursting, and the aim of degrading the VOC in the gases is achieved. According to the system and the method, any oxidant does not need to be used in the VOC degradation process, and only water is needed to take participate in the total decomposition process; and moreover, the recycled water can participate in the treatment process of the gases containing the VOC again in a circulation water device through the steps such as filtering, and loss is avoided. Due to the absence of the other oxidants, the influence on the environment and a human body is avoided, and the treatment burden of a discharger is greatly alleviated.

The present disclosure is directed to a microfluidic die that includes a first larger heater and a second smaller heater is a single chamber. The first heater is configured to form a primary bubble that ejects fluid from a nozzle associated with the chamber. The second heater is configured to form a secondary bubble to prevent blow back caused when the primary bubble bursts and ejects fluid from the nozzle. The first and second heater may be coupled to a single input trace and a single ground trace.

A smoke-filling-bubble generator has a smoke generator, at least one blower and a nozzle assembly. The smoke generator may contain nebulizaing liquid and is able to generate smoke. The blower generates airflow to blow the smoke generated by the smoke generator. The nozzle assembly includes a swaying arm and a nozzle mounted on the swaying arm. The swaying arm controllably dips the nozzle into suds contained in a cup and inserts the nozzle into an outlet from which the smoke is blown. With the smoke gradually blown out of the outlet, bubbles containing smoke are individually formed in the nozzle and fly into the air. In such a manner, when the bubbles burst in the air, the smoke may emerge out and mix up the bubbles to present a novel effect that is dazzling and magical. Therefore, the smoke-filling-bubble generator provides a unique entertaining effect.

The invention discloses a method and a device for preventing and removing scales, removing oxygen, cleaning, sterilizing and removing algal by using ultrasonic waves. In a working medium circuit and a cooling medium circuit of a steam power plant, a filter is used for filtering dirt, and an ultrasonic processor is used for preventing and removing scales, removing oxygen, cleaning, sterilizing andremoving algal from water subjected to dirt filtration. The method and the device have the advantages that: thermal power generation process and equipment are supplemented, improved and developed by applying the acoustic technology, the steam power plant is operated on line by applying the acoustic technology, and under the action of ultrasonic cavitation effect, nanoscale cavitation closing state and negative high pressure bubble bursting characteristics, the nanoscale steam cleaning function, oxygen removal function and scale removal and cleaning function are realized. Water is taken as a carrier, and the scales are removed without dead angle when the current reaches positions with scales; substances are not added into the device, resistance is not increased, and the mechanical structure and function of the device are not changed; and the body of the conventional steam power plant is not changed, and the method and the device are suitable for promotion and application.

The invention discloses a noise reduction connecting piece for a capillary tube and an evaporator and a refrigerating device, and belongs to the field of refrigerating devices. The noise reduction connecting piece comprises a connecting tube, and the connecting tube is filled with porous materials. By filling the connecting tube with the porous materials, the impact force of refrigerants on the tube wall can be buffered, and structural vibration noise of a pipeline is reduced; bubbles can also be dispersed, the formation of large bubbles is prevented, and bubble bursting sound is reduced; andas sound absorption materials, the porous materials can absorb all kinds of generated noise. The noise reduction connecting piece in the embodiment carries out noise reduction treatment on refrigerantnoise from three aspects of pipeline vibration noise, bubble bursting sound and jet noise erupting noise and plays a good vibration and noise reduction effect. The invention further provides a refrigerating device including the noise reduction connecting piece, the refrigerant noise is effectively reduced, the sound quality is improved, and the user experience is improved.

The invention discloses a device and a method for recovering activity of zero-valent iron passivated in a Cr pollution removal process. The device comprises a reaction tank, wherein a water inlet is formed in the bottom of the reaction tank; a water outlet is formed in the top of the reaction tank; iron net electrodes and zero-valent iron fillers are placed in the reaction tank; and the iron net electrodes are connected with a power supply. The method comprises the following steps that: when the zero-valent iron fillers are passivated, the power supply powers the iron net electrodes; the positive electrode and negative electrode are reversed and powered for the same time; a certain electric field is applied; a large amount of hydrogen can be separated out of the surface of one side of a cathode; a great number of bubbles burst out from the surfaces of the zero-valent iron fillers, and have effects of peeling and clearing attachment layers, so that a passivation layer on the surface of the iron is peeled off; and a great number of iron ions on one side of each anode are dissolved out to peel off precipitates on the surfaces of the zero-valent iron fillers. With the adoption of the device and the method, the material is not required to be replaced, and thus the cost is saved; secondary pollution of the iron ions cannot be caused; the Cr removal efficiency of a reactor after de-passivation is high; and the service lives of the fillers are long after de-passivation.

The invention relates to a multifunctional filtering and backwashing experimental device. In the device, a gas-liquid atomization flash mixing jet device is adopted to put a coagulant; a multi-port water sample collector is used for collecting the water quality conditions of all layers of filter water; and a bubble bursting and mud film disturbing device without a filter head is adopted to improve the backwashing effect. The device can be used for carrying out the following experiments: constant speed filter experiments and variable speed filter experiments of flocculation box outlet water, constant speed contact and filter experiments and variable speed contact and filter experiments with drugs put to raw water, contact and filter optimal drug put quantity experiments with drugs putt to raw water, back washing experiments by using water, gas disturbing and water backwashing experiments of a small-resistance system without the filter head, gas disturbing and water backwashing experiments of a large-resistance system without the filter head, gas and water simultaneous backwashing experiments after gas disturbing of the small-resistance system without the filter head and gas and water simultaneous backwashing experiments after gas disturbing of the large-resistance system without the filter head. The invention is suitable for teaching, scientific researches and design and production units to determine the parameters of various types of filtering and backwashing by the experiments.

The invention belongs to the technical field of rust removing device, in particular to a cavitation rust removing device, which comprises a hydraulic system, an air pressure system and a cavitation generator, wherein both the hydraulic system and the air pressure system are communicated with the cavitation generator, and high-pressure liquid can be provided through the hydraulic system, by means of the air pressure system, high-pressure gas can be provided, the high-pressure liquid can be mixed with the high-pressure gas through the capitations generator, the cavity generator is communicated with a damping nozzle, and the mixture can be ejected through the damping nozzle.The cavitation generation is jointly controlled by a hydraulic system and a pneumatic system, a special cavitation generator is utilized, the convection field is analyzed to generate cavitation bubbles, the bombardment action of the shock wave formed by the bubble burst on the metal surface is generated, the purpose ofpeeling and cleaning the rust corrosion layer on the metal surface can be achieved.This method of removing rust by the principle of cavitationutilizes the inevitable cavitation phenomenon in the hydraulic system, so that the cavitation phenomenon can be changed into profit, and the purpose of cleaning is achieved.

According to typical inventive practice, the relative positioning of two press members is mechanically adjustable so that their respective flat surfaces remain parallel at selectively closer or further distances apart. During immersion or partial immersion of the two press members in a fluid of interest, a fluid sample is bounded by the two opposing flat surfaces. The present invention can thus achieve small thicknesses of its fluid samples, which represent “thin fluid films” suitable for measurement of one or more electrical characteristics (e.g., impedance, or impedance-related characteristics such as permittivity). Data acquisition can be performed by generating electrical pulses and receiving data signals from probes contiguous with the fluid sample. Measurements can be taken of fluid samples characterized by varying thicknesses and / or varying pressures. As distinguished from conventional methodologies, which are beset with “bubble-bursting” transience and fragility, the inventive methodology provides thin fluid films that are stable and robust.

The invention discloses a sampling method for rapid detection of volatile organic compounds in a liquid by direct mass spectrometry. A device used in the method is similar to a grinding-contact glassbottle. The main body of the grinding-contact glass bottle is a bottle cap and a bottle body which are in sealed connection. The bottle cap is connected with a sample channel and a carrier gas pipeline. The bottle body is filled with a liquid sample to be measured. The inlet of the carrier gas pipeline is connected with a carrier gas source, and the outlet of the carrier gas pipeline is located below the level of the liquid sample; the outlet of the carrier gas pipeline comprises 6 to 10 small holes with internal diameters of 0.5 to 1.5 mm. During sampling and analysis, a carrier gas brings out the volatile organic compounds from the interior of the liquid, and enters through the sample channel a mass spectrometer for analysis and detection. When the carrier gas carries the sample, many small bubbles are generated inside the liquid. During the rise of the bubbles, the bubbles burst under the combined action of bubble gravity and the flow rate of the carrier gas. When the bubbles burst,a large amount of volatile organic compounds inside the liquid are released, and enter the mass spectrometer for rapid analysis and detection.

The invention discloses white polyurethane paint capable of highly highlighting wood grains. The paint is prepared from a polyurethane colored paint host, a curing agent and a diluent in the weight ratio being 1:0.5:(0.5-0.8). According to the formula of the polyurethane colored paint host, self-made high-permeability alkyd resin, aids and powder are matched, and a paint film of the white polyurethane paint can realize quick and directional permeation leveling, cannot produce paint film sinking caused by bubble bursting, has no black spots and makes wood grains smooth and wood diameters flat under the dual effects of permeation sealing and permeation leveling. The wood grains can be displayed stereoscopically and obviously after following coating while wood coating is performed.

The invention discloses a cooking appliance and anti-overflow control method thereof. The cooking appliance comprises a pot body and a cover body. The cover body comprises an inner cover and a cover plate, wherein the inner cover is provided with at least one negative pressure hole, and the cover plate is disposed on the side of the inner cover facing a cooking chamber and a plurality of airflow through holes. The vacuum device is arranged corresponding to the inner cover, and is connected with at least one negative pressure hole, and the vacuum device vacuums the cooking chamber to form a negative pressure bubble burst area between the inner cover and the cover plate. When the cooking appliance enters the boiling stage, a control module is used for controlling the vacuum device to make the bubbles generated in the cooking chamber burst when contacting the negative pressure bubble burst area. According to the cooking appliance and anti-overflow control method thereof, when the cookingappliance enters the boiling stage, the control module controls the startup and shutdown of the vacuum device so that bubbles generated in the cooking chamber are burst when contacting a negative pressure bubble burst area, so that rapid, large-area bubble burst is realized, and the anti-overflow effect is greatly improved.

The invention discloses a glue brushing device for carton assembly using pressure gluing. The glue brushing device for the carton assembly using the pressure gluing structurally includes a carton placement table, a brushing machine main body, a speed regulating device, an equipment electronic control box and a switch handle; the glue brushing device is matched with a glue spreading roll shaft through a glue conveyor pipe, so that when the surfaces of cartons are brushed, bubbles of glue after the glue is heated can be effectively eliminated, the situation that the bubbles burst after the gluewith the bubbles is brushed onto the surfaces of the cartons to cause the lack of glue in the cartons is avoided; and meanwhile, the glue is conveyed through negative pressure, the situation that theglue in a fixed groove is transferred to the roll shaft, and in the process of applying the cartons, the glue converges on the roll shaft and drips, so that the non-uniformity of gluing on the surfaces of the cartons appears is avoided, and the effect of the gluing is effectively improved.

The invention belongs to the technical field of water purifiers, and particularly relates to an automatic cleaning controlling system and method of a water tank and a water purifier. According to theautomatic cleaning controlling method of the water tank, the liquid level in the water tank is maintained in a high liquid level state; an ultrasonic generator emits ultrasonic waves; a transducer starts to vibrate after receiving the ultrasonic waves, and the vibration is transmitted to water tank walls for vibration; during the transmission process of the water tank walls, liquid in the water tank is driven to vibrate at the same time to conduct cavitation and produce bubbles; when the bubbles burst, shock waves continuously impact the inner surfaces of the water tank walls, and therefore stains on the surfaces quickly disperse, emulsify and fall off, and automatic water tank cleaning is conducted. The self-cleaning of a built-in water tank is realized by the ultrasonic cavitation technology, and the problems such as the tedious of manual disassembling and cleaning, water tank damage caused by manual disassembling and cleaning and the secondary pollution to the water tank caused by long-term liquid immersion of dirt on the inner walls of the water tank are avoided. A convenient control method is provided for cleaning impurities in the water tank.

The invention discloses a down cleaning device, comprising a cleaning bucket body and a screening bucket, wherein a servo motor is arranged at the center position of the top surface of the cleaning bucket body, a rotating rod is welded through the bottom surface of the servo motor and a stirring paddle is welded on the surface of the rotating rod. In this invention, the ultrasonic clean mechanismis provided, An ultrasonic clean mechanism is provided with an ultrasonic high-frequency oscillator inside that ultrasonic clean mechanism, Applying ultrasonic principles, generate high frequency oscillatory waves, causing a large number of tiny bubbles between the water flow and the down, By utilizing the pneumatic shock wave generated when the bubble bursts, the dirt and the down are thoroughlyseparated, the washing work is automatically completed, the detergent is not needed, the environmental pollution is improved, a large amount of down can be washed quickly in the same time, the washingefficiency of the down is greatly improved, and the rinsing frequency of the down is reduced because the detergent is not needed, and the precious water resources are saved.

The invention discloses an adhesive structured pigtail type detector which comprises a rubber sheath, an optical fiber assembly, a metal shell and a detector chip, wherein the optical fiber assembly and the metal shell are connected; the optical fiber assembly and the detector chip are coupled; the detector chip and the metal shell are bonded by glue; and an outer circle of the optical fiber assembly is provided with a platform. The adhesive pigtailed detector has the advantages that a gap between the optical fiber assembly and the inner part of the metal shell is reserved by changing the structure of the optical fiber assembly, which is beneficial to the exhausting of gas generated in the curing of the glue so as to prevent the glue from bubble burst; the index of the detector is ensured to reach the standard all the time, be free from the influenced of the processing course; the production cost is reduced; and the product reliability is better.

The invention discloses ultrasonic-assisted rapid straw anaerobic fermentation equipment. The equipment structurally comprises a sight glass device, an anti-dross crusting device, an anaerobic fermentation tank and support legs, wherein the bottom of the anaerobic fermentation tank is connected with three support legs arranged at equal intervals, the sight glass device is mounted on one side of the top of the anaerobic fermentation tank, and the anti-dross crusting device is further arranged on the anaerobic fermentation tank. Compared with the prior art, the equipment has the beneficial effects as follows: a dross layer is stirred by an anti-dross crusting plate to prevent lignocelluloses from crusting, cellulose, hemicelluloses and lignin intertwined structures can be dissolved by a dispersion and dissolution promoting assembly, the crusting phenomenon can be effectively prevented, fermentation of straw is facilitated while manual clearing is not required, continuous pumping can be realized by boosting and bubble removal to boost to make bubbles burst so as to remove bubbles, a pumping ring is arranged to increase the pumping travel and increase the pumping volume, and the bubbleremoval efficiency is improved.

A descaling device used to remove scales deposited on the inside of a shell and tube heat exchanger type steam generator, comprising a flexible lance which holds high-pressure water hose and is movable relative to tube plates, tube supporting plates, and heat-transfer pipes and a washing head installed at the tip of the flexible lance, wherein cavitation generating two nozzle holes communicating with the high-pressure water hoses are formed inside the washing head, whereby air bubbles are produced at the time of washing and an impact pressure produced when these bubbles burst is propagated so as to eliminate scales over a wide range.

The invention provides a trichromatic fabric dyeing and finishing device. Hollow cavity bubble emitting tubes are arranged on a dye liquor tank, when fabric is dyed, a bubble generator conveys bubblegeneration airflow to the bottom of a hollow cavity bubble emitting tube through an air guide tube, bubbles are formed at the bottom end of the hollow cavity bubble emitting tube, rise to the an opening in the top end from the bottom end of the hollow cavity bubble emitting tube and burst, meanwhile, airflow generators supply air, airflow is blown out from top ends of airflow injection tubes, anddye liquor produced through bubble bursting is collected and injected to to-be-dyed fabric for dyeing the fabric. Due to the fact that bubble bursting has obvious random nature, the hollow cavity bubble emitting tube is divided into three parts through partition boards, trichromatic dye is put in the three parts respectively, dye with different colors can be mutually mixed to realize color complementation, the trichromatic dye is randomly splashed and distributed on the fabric surface, mutual color complementation is realized, color depth is not consistent, overlying color complementation in different ratios is realized, and accordingly, good random color distribution is achieved by the fabric after dyeing.

The invention discloses a method for mixing and defoaming plastic glue. The motor drives the connecting rod to rotate, and the drum rotates centrifugally in the barrel. During the rotation, the drum hits the protruding strips, and the drum deviates relative to the movable block and rotates to realize the mixing of the glue; While the body is moving, the glue will discharge the mixed glue through the dropper and drop onto the side wall of the funnel through the larger opening of the funnel body. The glue will flow downward on the side wall of the funnel body, and the The liquid layer becomes thinner during the flowing process, and the larger bubbles are exposed and burst; the heating device heats the side wall of the funnel body to increase the temperature of the glue, and accelerate the movement of the bubbles in the glue; the glue flows out from the smaller opening of the funnel body, dripping Falling onto the follicle ball, the glue spreads freely when flowing on the surface of the sphere, the thickness of the liquid becomes thinner, and the smaller air bubbles are also exposed and rupture; the glue flows into the glue collection tank along the follicle ball. The defoaming method of the invention can eliminate tiny air bubbles in the plastic glue, and improve the utilization rate of the glue.

The invention discloses a layered settlement artificial zoogloea and a preparation method thereof, and belongs to the technical field of wastewater treatment. The layered settlement zoogloea includesa first zoogloea attachment frame and a second zoogloea attachment frame, a longitudinal axis upright rod is arranged inside the first zoogloea attachment frame, the second zoogloea attachment frame is in sleeving connection with the lower end of the longitudinal axis upright rod, and the first zoogloea attachment frame and the second zoogloea attachment frame are both rotatably connected with thelongitudinal axis upright rod. By adopting the layered settlement artificial zoogloea, microbial zoogloeae can be distributed in sewage at different layers, it is convenient for the microbial zoogloeae to treat impurities in the sewage at different sewage layers, and thus the oxygen generation rate is increased; meanwhile, the structure of the layered settlement artificial zoogloea is adopted toreduce the influence of little foam generated by filamentous bacteria, therefore, large bubbles are formed after a large amount of foam agglomerates and fuses, the bubbles burst more easily, accumulation of the foam in the zoogloea is reduced, oxygen diffuses outwards after zoogloea reaction is improved, and the sewage treating efficiency of the layered settlement artificial zoogloea is improved.

The invention discloses bubble explosion type staggered intelligent mechanical arm assembly part cleaning equipment which comprises a main body, a folding staggered bubble explosion type stain falling mechanism, a weight compensation mechanism, a multi-dimensional self-service cleaning mechanism, a preset hidden drying mechanism and a multi-dimensional uniform mixing mechanism. The folding staggered type bubble explosion type stain shedding mechanism is arranged in the main body, the weight compensation mechanism is arranged at the lower end of the folding staggered type bubble explosion type stain shedding mechanism, and the multi-dimensional self-service cleaning mechanism is arranged on the folding staggered type bubble explosion type stain shedding mechanism; the preset hidden drying mechanism is arranged in the folding staggered bubble burst type stain shedding mechanism and the weight compensation mechanism, and the multi-dimensional mixing mechanism is arranged on the main body. The invention belongs to the technical field of bubble explosion type staggered intelligent mechanical arm assembly part cleaning, and particularly relates to bubble explosion type staggered intelligent mechanical arm assembly part cleaning equipment.

The invention provides an ultrasonic cleaning sterilization device. The ultrasonic cleaning sterilization device is mainly composed of a shell, an oscillation starting work cap, a rear cover, a printed-circuit board and an ultrasonic transducer. The ultrasonic cleaning sterilization device is put into water used for soaking clothes. After the device is powered up, all components of the printed-circuit board convert electric energy into a high-frequency electric pulse, then the ultrasonic transducer and the oscillation starting work cap are driven to convert the electric pulse into an ultrasonic wave through insulated cables, and supersonic wave vibrations form a mechanical shockwave in water. Due to the fact that the ultrasonic wave is a longitudinal wave, the effect of pushing media by the longitudinal wave can change the pressure in liquid and countless vacuum bubbles can be generated. When the bubbles are pressed to be burst, powerful impact energy can be generated, stains on the clothes can be dispersed with the help of the impact energy, and thus the cleaning effect is achieved; and meanwhile the chemical reaction caused by bubble bursting can achieve the effect of sterilization and disinfection.

The invention discloses a municipal pipeline rapid desilting device. The municipal pipeline rapid desilting device comprises a square dirt collecting tank and a dirt sucking pipe communicating with the dirt collecting tank, the dirt sucking pipe is connected with a horn-shaped cover opening, the upper wall of the dirt collecting tank is provided with a detonating cavity, one end of the detonatingcavity communicates with an air pipe, the end, away from the detonating cavity, of the air pipe is located at the center of the cover opening, the detonating cavity communicates with a thin pipe, a travelling screw is arranged on the upper wall of the dirt collecting tank in a penetrating mode, and the travelling screw and the thin pipe are jointly connected with a power device. The municipal pipeline rapid desilting device has the advantages that when the municipal pipeline rapid desilting device is used for clearing a pipeline, the cover opening is placed at silt, a large amount of air is instantaneously generated in the detonating cavity to enable the air pipe to generate bubble burst at the cover opening, thus the silt at the cover opening is scattered and suspended in water, meanwhile, the thin pipe blows blades to drive and a gear ring to rotate to enable a locking rod to be disengaged from contact with the travelling screw, and a transverse plate moves upwards under the effect of a dirt sucking spring to suck the suspended silt into the dirt collecting tank.

The invention relates to a multifunctional filtering and backwashing experimental device. In the device, a gas-liquid atomization flash mixing jet device is adopted to put a coagulant; a multi-port water sample collector is used for collecting the water quality conditions of all layers of filter water; and a bubble bursting and mud film disturbing device without a filter head is adopted to improve the backwashing effect. The device can be used for carrying out the following experiments: constant speed filter experiments and variable speed filter experiments of flocculation box outlet water, constant speed contact and filter experiments and variable speed contact and filter experiments with drugs put to raw water, contact and filter optimal drug put quantity experiments with drugs putt to raw water, back washing experiments by using water, gas disturbing and water backwashing experiments of a small-resistance system without the filter head, gas disturbing and water backwashing experiments of a large-resistance system without the filter head, gas and water simultaneous backwashing experiments after gas disturbing of the small-resistance system without the filter head and gas and water simultaneous backwashing experiments after gas disturbing of the large-resistance system without the filter head. The invention is suitable for teaching, scientific researches and design and production units to determine the parameters of various types of filtering and backwashing by the experiments.

High-efficiency and safe melting film equipment for flexible polyurethane foam coils and its processing method. One of the existing foam blasting melt film technologies is to cut the rectangular foam blocks into coils after melting the film, which wastes man-hours and materials, and the surface pore size and physical properties of the unfolded coils are not uniform; The membrane reticulation coil is put into the melting film equipment of the rectangular container to melt the membrane reticulation, resulting in a waste of melting film space, deformation or damage of the coil; the existing equipment is simple and unfavorable to safe operation, process design and uniform distribution of blasting force. The method of the present invention includes: a circular pressure-resistant container (1), the circular pressure-resistant container is connected to a circular quick-opening upper door (3) through a circular chuck (2), and the circular quick-opening upper door is connected to a lift A translation device (4); wherein, the bottom of the circular pressure-resistant container is connected to a group of gas injection ports (5), and the circular quick-opening upper door is connected to a gas extraction port (6). The invention is used for reticulated foam processing.

The invention provides a dyeing and finishing device for assorted-color fabric. A hollow bubble jet tube is arranged on a dye vat, a bubble generator conveys bubble generating airflow to the bottom ofthe hollow bubble jet tube through an air guide tube during fabric dyeing, bubbles are formed at the bottom of the hollow bubble jet tube, rise to the top end opening from the bottom end of the hollow bubble jet tube and burst, meanwhile, airflow generators supply air, the airflow is blown out of the top ends of airflow jet tubes, and dyes produced by bubble bursting are collected and jetted to to-be-dyed fabric for fabric dyeing. Bubble bursting has an obvious random property, the hollow bubble jet tube is divided into two parts by a partition board, dyes of different types in different colors are arranged in the two parts respectively, so that the dyes in different colors can be mixed to realize assorted color, the fabric has good random color distribution after being dyed and has unique artistic value.