89 results about "Plasma sterilizer" patented technology

The invention relates to a hydrogen peroxide plasma sterilizer which comprises a sterilizing cabin, a vacuum system, a liquid feed system, a plasma generator, an air inlet system and a control system, wherein the sterilizing cabin is used for accommodating a sterilizing object; the vacuum system is used for emptying gas in the sterilizing cabin; the liquid feed system is used for filling a hydrogen peroxide sterilizing agent containing water into the sterilizing cabin; the plasma generator is used for exciting a content of the sterilizing cabin to be in a plasma state within a period of a sterilizing circle; the air inlet system allows abacterial air to enter the sterilizing cabin to break the vacuum of the sterilizing cabin; and the control system is used for controlling components of the sterilizer, so that the sterilizer can carry out sterilizing works as a set program. The hydrogen peroxide plasma sterilizer is characterized by also comprising an evaporator used for purifying the hydrogen peroxide sterilizing agent containing water, vaporizing the purified hydrogen peroxide sterilizing agent and conveying the hydrogen peroxide sterilizing agent to the sterilizing cabin for sterilizing. The evaporator can purify the lower-concentration hydrogen peroxide sterilizing agent containing water which is convenient for storage and transport into a high-concentration hydrogen peroxide sterilizing agent, and water is basically removed from the system, thus the sterilizer can sterilize more quickly, sufficiently and effectively.

The invention provides a portable micro-plasma sterilizer, and relates to a non-equilibrium plasma type spray germicidal disinfectant generation device. The device comprises a mainframe 1 and a plasma sprayer 2. The mainframe comprises a housing 6, a high-tension transformer 7, a water pump 9, a flowmeter 10, and the like; the plasma sprayer comprises an insulator cover 18, a knife structure metal electrode 24, a water vapor atomizing nozzle 26 and the like. Disruptive discharge arcs are formed in the minimum distance position between electrodes by virtue of high-voltage potential difference between metal electrodes in the plasma sprayer; the disruptive discharge arcs quickly glide downstream along the surfaces of the electrodes under the driving of a water-vapor mixture generated by the atomizing nozzle and pulsed gliding arc non-equilibrium plasmas are formed on the surfaces of the electrodes, and therefore, a water-vapor mixture containing oxidizing particles such as hydrogen peroxide, ozone, hydroxyl radicals and oxygen radicals is generated; and the water-vapor mixture is jetted out from the insulator cover to form a water-vapor spray germicidal disinfectant.

The present invention relates to preservation technology, and is especially the method of keeping freshness of bamboo shoot with sheaths. Bamboo shoot is preserved through sterilizing with negative mist and ozone inside a container with plasma sterilizer, spraying bacteria-free water to maintain humidity, maintaining nutrients and color with natural freshness keeping agent and sugar solution, cold storage to lower breath strength and other measures. The cold storage temperature is 1-5 deg.c, preferably 1-2 deg.c, and it may be maintained for 2 months. The present invention makes it possible to raise the value of bamboo shoot greatly and regulate the marketing seasons of bamboo shoot.

A hydrogen peroxide filling system for the plasma sterilizer is composed of supporting frame, liquid storage tank, evaporator with nozzle, delivering pipeline between said liquid storage tank, and the high-precision metering pump with step motor, which is installed to said delivering pipeline.

An apparatus which determines activeness / inactiveness of bacteria in real time by measuring a specific light emission spectrum upon performing sterilization using plasma to highly efficiently sterilize is provided. As solving means, plasma is irradiated on a processing target from a plasma source connected to an alternate-current power supply and light emission of the processing target caused by the irradiation of plasma is detected by a light emission intensity detector unit. Particularly, by detecting wavelength intensity of hydrogen or hydroxyl group, activeness / inactiveness of bacteria can be determined at an early stage. Thus, an appropriate output of a power supply for sterilization can be controlled.

Disclosed is a dehumidifier-equipped plasma sterilization apparatus having a sterilization chamber ( 10 ) for receiving therein a sterilization object ( 11 ); a high frequency power source ( 40 ), connected to a cathode, for generating plasma in optimal condition under control of both an impedance matching controller ( 42 ) and an impedance matching circuit ( 44 ), the cathode being installed, along with an anode at determined distance, in the sterilization chamber, a vacuum pump ( 14 ), connected through an exhaust pipe ( 116 ) to the sterilization chamber, for exhausting air from the sterilization chamber ( 10 ) to form a vacuum state in the sterilization chamber ( 10 ); and a dehumidifier ( 50 ), mounted on the exhaust pipe ( 16 ) for freeze-condensing the water vapor of the gas flowing through the exhaust pipe. In the apparatus, water vapor remaining in the mixed gas used for sterilizing the sterilization object is frozen and removed so that it does not enter the vacuum pump.

The invention discloses a device used for detecting a sterilizing effect of a hydrogen peroxide plasma sterilizer. The device is characterized by comprising a control system, a detection device body, and a color sensor and a transmission system which are arranged on the detection device body, wherein the control system is used for controlling every parts of a detection device to work according a set program, and is electrically connected with the color sensor and the transmission system through data transmission interfaces. The device used for detecting the sterilizing effect of the hydrogen peroxide plasma sterilizer has the advantages that: the latest color sensor technology is adopted to quickly and automatically detect the sterilizing effect of the hydrogen peroxide plasma sterilizer,the detection effect is displayed, and a sterilizing effect record is stored or printed; and the device is convenient to use and has a high automation degree.

The invention relates to the field of electrode net machining, in particular to automatic machining equipment for an electrode net of a medical plasma sterilizer. The equipment comprises a feeding mechanism, a material pressing mechanism, a quantitative cutting mechanism, a bending mechanism and a supporting frame, wherein the quantitative cutting mechanism comprises a material cutting mechanism and a material transferring mechanism, the material transferring mechanism comprises a first mounting plate, a first electric sliding table, a limiting mechanism, a sucking mechanism and two first supporting plates, the first electric sliding table is fixedly arranged at the bottom of the first mounting plate, and an extending plate is fixedly arranged on a sliding seat of the first electric sliding table. According to the automatic machining equipment for the electrode net arranged in the medical plasma sterilizer, three procedures of cutting, punching and bending are realized through the equipment, the occupied area of the equipment is reduced, and compared with the prior art, conveying of workpieces in the machining process is reduced, the workload of workers is reduced, and the machining efficiency is improved.

The invention discloses a movable plasma sterilizer, and belongs to the technical field of disinfection and sterilization devices. The movable plasma sterilizer comprises a mounting shell, wherein a mounting base is fixedly connected to the bottom end of the mounting shell, universal wheels are fixedly mounted at the front end of the bottom face of the mounting base, driving wheels are fixedly mounted at the rear end of the bottom face of the mounting base, falling sensors are fixedly connected to the side wall and the front wall face of the mounting base, and the front wall surface of the mounting base is also fixedly connected with an ultrasonic sensor; a power interface is embedded in the rear wall surface of the mounting base, and the power interface is electrically connected with the battery pack. The problems that in an existing design, only air sterilization work can be carried out at a fixed point, and effective air purification and germ sterilization effects cannot be carried out on air in places with large people flow, dense people and large space are effectively solved.

The invention discloses a cabinet door for a hydrogen peroxide low-temperature plasma sterilizer. The cabinet door comprises a door body (1), an observation window (2) and a shell (3); a lookout hole (A) is formed in the position on the shell (3), corresponding to the observation window; a round groove (D) is formed in the back surface of the shell (3), and a lug boss (E) is arranged inside the groove; an anti-dazzling screen (4) provided with two openings is mounted inside the round groove (D); and a shifting hole (B) is further formed in the position on the shell (3), corresponding to the anti-dazzling screen. The anti-dazzling screen (4) is rotated by penetrating through the lifting hole outside the cabinet door, and a first opening in the anti-dazzling screen (4) is rotated to the position of the lookout hole in the shell, so that a user can view a working condition inside a sterilization chamber of the equipment through the observation window. When the user stops observing, the anti-dazzling screen (4) is reversely rotated, and an anti-dazzling part below a second opening in the anti-dazzling screen is rotated to the position of the lookout hole, so that the observation window is entirely shielded, and light and heat inside the sterilization chamber can be prevented from being radiated through the observation window.

The present invention is to provide a plasma sterilizer capable of sterilizing the entire space inside an ambulance or a wall. The present invention provides a sterilizer module comprising: a dielectric barrier discharge plasma source; a fan to apply a propulsion force to a plasma flow discharged from the plasma source; and a UV lamp and an activated carbon arranged in a flow path through which the plasma flows out. The plasma source provides the sterilizer module having a first substrate and a second substrate arranged in parallel to face one another, wherein the first substrate comprises: a fork-shaped first electrode; a dielectric material covering the first electrode; and an aluminum oxide formed on the top of the dielectric material to protect the dielectric material and prevent moisturization of the dielectric material. The second substrate comprises: a fork-shaped second electrode; a dielectric material covering the first electrode; and an aluminum oxide formed on the top of the dielectric material to protect the dielectric material and prevent moisturization of the dielectric material.

The invention belongs to the field of low-temperature sterilizing devices, in particular to a multi-zone separately controlled plasma sterilizer which comprises two or more internal chambers and a vacuum system. Each internal chamber is connected with the vacuum chamber through a pipeline, and a connecting pipe between each internal chamber and the vacuum system is provided with a control valve. The invention overcomes the defect that the plasma sterilizer in the prior art can not meet the requirement of larger scale application, and has the advantages of low cost, convenient and flexible use and wide application range.

The invention provides convenient type atmosphere plasma sterilization equipment which comprises an open type cuboid equipment body, wherein a plasma sterilizer is arranged on the equipment body; a storage table for storing to-be-sterilized articles and a mobile working platform for adjusting the relative positions of the storage platform and the plasma sterilizer are further arranged inside the equipment body; the mobile working platform consists of an X-direction mobile working platform, a Y-direction mobile working platform and a Z-direction mobile working platform; the storage platform is arranged on the Y-direction mobile working platform; and the plasma sterilizer consists of a plasma generation power supply, a plasma jetting nose and a mounting piece. The convenient type atmosphere plasma sterilization equipment can conduct sterilization and disinfection in an atmosphere state, does not need low-pressure environment and is not limited by shapes and sizes.

The invention discloses a biosafety asepsis room with a monitoring function. The biosafety asepsis room with the monitoring function comprises an aseptic processing room, an air supply pipe, an air returning pipe and a purifier, wherein the purifier is placed in the air sending pipe. An air inlet of the air supply pipe is communicated outdoor, an air outlet of the supply pipe is communicated to the aseptic processing room, and an air returning inlet of the aseptic processing room is communicated to the air inlet of the air supply pipe. The purifier comprises a low efficient filter, a cooling tower, a heater, a draught fan, a medium efficiency filter and a plasma sterilizer placed in the gas flowing direction in sequence, and a monitoring upper computer used for monitoring the plasma sterilizer, and the plasma sterilizer detects current, voltage, density and electron energy of the plasma, and monitors whether a purifying unit is in a working state or not in real time. According to the biosafety asepsis room with the monitoring function, firstly, large particles in the air are firstly filtered out, then sterilization is conducted through a plasma method, thus it is guaranteed that recirculating air in the asepsis room is sterile and nontoxic, and the demand of many bio-pharmaceutical enterprises for biosafety grade asepsis room is met.

Disclosed is a plasma sterilizer apparatus for a pipe and, more particularly, to a plasma sterilizer apparatus for a pipe, which can be easily mounted on a pipe and effectively sterilize harmful microorganisms contained in water or raw materials flowing through a pipe. A plasma sterilizer apparatus for a pipe comprises: a first connection member connected to one side of a pipe; a second connection member connected to the other side of the pipe; a first electrode mounting member disposed in contact with the first connection member; a second electrode mounting member disposed in contact with the second connecting member; a first electrode member provided on the first electrode mounting member; and a second electrode member provided on the second electrode mounting member.

The invention relates to a novel low-temperature plasma sterilizer which comprises a sterilizer body and a front cover, wherein the sterilizer body comprises a vacuum device, an injection diffusion device and a sterilization generation device, wherein the sterilization generation device comprises a direct-current sterilization device which is connected with a direct-current power supply and a radio frequency sterilization device which is connected with an alternative-current power supply; the direct-current sterilization device comprises a direct-current electrode and a first metallic net which is communicated with the direct-current electrode; the radio frequency sterilization device comprises radio frequency electrodes and second metallic nets communicated with the radio frequency electrodes. The direct-current sterilization device and the radio frequency sterilization device are creatively and simultaneously arranged in the novel low-temperature plasma sterilizer provided by the invention, the direct-current sterilization device is powered on to operate for a certain time before the radio frequency sterilization device is powered on, brush discharge is firstly implemented, the two radio frequency electrodes are liable to build up luminance at a state that a gas in the sterilizer body builds up luminance, then generation of uniform large-area plasma can be ensured, and the plasma sterilization efficiency can be improved.

The invention provides a Qigong health care light bath device. A variety of LED light-emitting tubes with special wavelengths is selected as a light source to irradiate and penetrate a skin to a deeptissue, which is equivalent to moxibustion, the blood circulation is promoted, the local special sunbathing is achieved, and the function of Qigong health care is achieved. The device is formed by a housing, a small power LED radiant panel assembly, a large LED radiant panel assembly, a cooling fan, a heater, a plasma sterilizer, a human body infrared detector and a panel and is powered by a low-voltage switching power supply.

The invention relates to a hydrogen peroxide injecting device of a rotating disc type low-temperature plasma sterilizer. A fixed elastic clip is adopted, and a hydrogen peroxide capsule is filled in the elastic clip. One stepping motor is utilized to drive the elastic clip to rotate for 360 degrees and move and position the capsule in the elastic clip, and another stepping motor is utilized to drive a syringe needle to cause the syringe needle to work in a mode of moving back and forth. The syringe needle is connected with an injection valve, and the injection valve is connected with a sterilizing chamber. The syringe needle moves forwards to pierce the hydrogen peroxide capsule in the elastic clip, and hydrogen peroxide is injected into the sterilizing chamber by control of the injection valve. The injecting device has the advantages of reliability and safety in injection, simplicity in structure and the like.

Disclosed is a dehumidifier-equipped plasma sterilization apparatus having a sterilization chamber (10) for receiving therein a sterilization object (11); a high frequency power source (40), connected to a cathode, for generating plasma in optimal condition under control of both an impedance matching controller (42) and an impedance matching circuit (44), the cathode being installed, along with an anode at determined distance, in the sterilization chamber, a vacuum pump (14), connected through an exhaust pipe (116) to the sterilization chamber, for exhausting air from the sterilization chamber (10) to form a vacuum state in the sterilization chamber (10); and a dehumidifier (50), mounted on the exhaust pipe (16) for freeze-condensing the water vapor of the gas flowing through the exhaust pipe. In the apparatus, water vapor remaining in the mixed gas used for sterilizing the sterilization object is frozen and removed so that it does not enter the vacuum pump.

The invention discloses a biological incubator with a clamping-breaking device for a hydrogen peroxide plasma sterilizer. The biological incubator comprises an incubator main body (2), a culture hole (4) formed in the incubator main body, a heating-insulating system, a control system, and a touch key switch (6). The incubator is capable of culturing a plurality of biological indicators (3) simultaneously; and moreover, the clamping-breaking device (5) is arranged at one side of the incubator, and the clamping-breaking device (5) is capable of directly breaking the inner tubes of the biological indicators (3) by clamping, so that a culture solution in the inner tubes flows in outer tubes. The touch key switch (6) and an illumination lamp (7) are installed in the culture hole (4) of the incubator, the illumination lamp is lightened up after the touch key switch is pressed, and an operator can much intuitively observe colour changes in a test tube by naked eyes under the irradiation of light, so as to judge a sterilization effect. The incubator is further provided with a transparent dustproof panel (8) for isolating the incubator from an external environment.

The invention discloses an exhaust gas decomposer of a hydrogen peroxide plasma sterilizer, which comprises a lubricating oil recovery system (10) and an exhaust gas cleaning system (20), wherein the lubricating oil recovery system (10) comprises a lower shell (11), an upper shell (12) and a filter element (13), a gas inlet (A) and a reflux inlet (B) are arranged in the end part of the lower shell (11); the exhaust gas cleaning system (20) comprises a cleaning barrel and a recovering box (25), activated carbon particles are arranged in the cleaning barrel, mixed oil gas exhausted from a vacuum pump gas vent (G) enters the exhaust gas decomposer through the gas inlet (A) of the lower shell (11) of the lubricating oil recovery system, lubricating oil returns to a vacuum pump (3) after being adsorbed through the filter element (13), the hydrogen peroxide exhaust gas is decomposed into oxygen and water through adsorption of the activated carbon particle, then the oil gas separation is completed, and the recycling of the lubricating oil and the cleaning of the hydrogen peroxide exhaust gas are realized.

The invention discloses a hydrogen peroxide low-temperature plasma sterilizer for forming waist-shaped holes in an electrode net. The sterilization equipment comprises a cavity, a control system, a pressure probe, a vacuum pump and an electrode net, wherein the electrode net is in insulation joint with the cavity, the cavity is positively charged, the electrode net is negatively charged, a plurality of waist-shaped holes are uniformly formed in the electrode net, and the hydrogen peroxide low-temperature plasma sterilizer disclosed by the invention can uniformly discharge in the sterilization process so as to effectively protect the sterilized machinery while sterilizing medical equipment.

The present invention relates to a quantitative liquid injection device for a plasma sterilizer, which is characterized in that the present invention comprises an electromagnetic valve, a liquid fetching pump and a liquid store bottle connected with the sterilization working room. The liquid fetching pump is connected with the liquid store bottle, which is characterized in that the liquid fetching pump comprises an air permeable measuring cup. The output end of the measuring cup is communicated with the electromagnetic valve and the input end is communicated with the liquid fetching pump. The horizontal position of the measuring cup is higher than the horizontal position of the liquid fetching pump. A liquid outlet hole is arranged in the rating capacity position of the measuring cup. A liquid sensor is arranged in the position higher than the rating capacity position. The present invention has properties of precise quantity, simple and practical structure, low cost and convenience in maintenance.

The invention discloses a low temperature hydrogen preoxide quantitative filling system of a plasma sterilizer, comprising a liquid storage tank, a filling pump, a double temperature vaporizer and electromagnetic valves. The low temperature hydrogen preoxide quantitative filling system of the plasma sterilizer is mainly technically characterized in that a liquid outlet is arranged at the lower end of the liquid storage tank and is communicated with the liquid inlet of the double temperature vaporizer through two electromagnetic valves, a tee joint is arranged between the two electromagnetic valves and is respectively communicated with the two electromagnetic valves and the filling pump, and a steam outlet of the double temperature vaporizer is connected with a sterilization cabin. The lowtemperature hydrogen preoxide quantitative filling system of the plasma sterilizer is internally provided with the double temperature vaporizer, can control the temperature of two vaporization chambers separately through a set of temperature control system and has the advantages of simple structure and low cost.

The invention provides a high-safety plasma sterile room. The high-safety plasma sterile room comprises a sterile operation room, an air supply pipe, an air return pipe and a purifier arranged in the air supply pipe. The purifier comprises a low-efficiency filter, a medium-efficiency filter, a plasma sterilizer and a monitoring upper computer, the low-efficiency filter, the medium-efficiency filter and the plasma sterilizer are sequentially arranged along the gas flowing direction, the monitoring upper computer is used for monitoring the plasma sterilizer, the plasma sterilizer comprises a shell and a plurality of electrode tubes arranged in the shell in a matrix manner, every electrode tube comprises an inner electrode, an insulator and an outer electrode tube which are arranged concentrically, and a specific gap is reserved between each insulator and the corresponding outer electrode tube. The high-safety plasma sterile room has the advantages that large particles in air are filtered out firstly, and sterilization is achieved through a plasma method, so that absolute sterility and non-toxicity of circulating air in the sterile room are guaranteed, the requirements of a great number of bio-pharmaceutical enterprises on bio-safety-level sterile rooms are met, and maintenance cost of the filters in the sterile room is also reduced greatly.

The invention discloses a hydrogen peroxide plasma sterilizer convenient for fixation of an object accommodating basket in a circular sterilization warehouse. The hydrogen peroxide plasma sterilizer comprises the object accommodating basket (1), the sterilization warehouse (2), an electrode net (3) and a connection seat (5), wherein a plurality of support seats (4) made of nonconducting materials are symmetrically arranged on the left side and the right side of the electrode net (3), platforms (B) and projections (C) are arranged on the support seats (4), connection bolts penetrate through via holes in the support seats and the electrode net to install and fix the support seats and the electrode net on the connection seats (5), grooves (A) matched with the projections (C) of the support seats are respectively formed in the left side and the right side of the bottom of the object accommodating basket (1), and the object accommodating basket is installed on the support seats by the grooves (A) in the bottom of the object accommodating basket. According to the hydrogen peroxide plasma body sterilizer, the relative fixation of the position of the object accommodating basket in the circular sterilization warehouse is realized, and the object accommodating basket is convenient to take and place; and the distances between the two sides of the object accommodating basket and the electrode net substantially increase, thereby guaranteeing the sterilization quality of medical apparatus and instruments placed on the inner left and right sides of the object accommodating basket.

The invention relates to a hydrogen peroxide double-temperature vaporizing device of a low-temperature plasma sterilizer, belonging to the technical field of medical disinfection and sterilization. The vaporizing device comprises a high-temperature vaporizing chamber main body and a low-temperature vaporizing chamber main body, wherein the low-temperature vaporizing chamber main body is located above the high-temperature vaporizing chamber main body, and a high-temperature vaporizing chamber and a low-temperature vaporizing chamber are respectively arranged in the high-temperature vaporizing chamber main body and the low-temperature vaporizing chamber main body; a hydrogen peroxide inlet is arranged on the high-temperature vaporizing chamber, a hydrogen peroxide outlet is arranged on the low-temperature vaporizing chamber, and a heating rod and a temperature probe are arranged on the high-temperature vaporizing chamber main body. The vaporizing device has the main structural characteristics that the high-temperature vaporizing chamber main body and the low-temperature vaporizing chamber main body are connected into a whole by arranging a heat isolating cushion and a heat conducting screw between the two main bodies, a gas heat isolating block is installed between the high-temperature vaporizing chamber and the low-temperature vaporizing chamber, a gas channel is arranged in the gas heat isolating block, and a heat dissipating sheet is arranged on the low-temperature vaporizing chamber main body. The invention has the advantages of simple structure, low cost and good application prospect, and is applicable to popularization and use in the filed of medical sterilizers.

The invention provides a bio-safety sterile room. The bio-safety sterile room comprises a sterile operation chamber, an air supply duct and a purifier arranged in the air supply duct. An air inlet opening of the air supply duct communicates with the outdoor environment. An air outlet of the air supply duct communicates with the sterile operation chamber. An air outlet of the sterile operation chamber communicates with the outdoor environment. The purifier comprises a low-efficiency filter, an intermediate-efficiency filter and a plasma sterilizer, wherein the low-efficiency filter, the intermediate-efficiency filter and the plasma sterilizer are sequentially arranged in the flow direction of air. By the adoption of the bio-safety sterile room, large particles in air are filtered out firstly, and then sterilization is conducted through a plasma method; and in this way, it is guaranteed that the air flow in the sterile room is absolutely sterile and free of toxicity, the demand of a great number of bio-pharmaceutical enterprises for bio-safety-level sterile room is met, and the maintenance expense of the filters of the sterile room is greatly lowered.

The invention provides an atmospheric plasma sterilizer used in a medical device sterilization apparatus. The atmospheric plasma sterilizer comprises a plasma generating power source, a plasma jet head and a mounting member. The mounting member has a C-shaped structure. The plasma jet head is connected to one end of the mounting member. The plasma jet head is connected to one pole of the plasma generating power source through a high voltage insulated cable and the other pole of the plasma generating power source is connected to a mounting table. The plasma jet head comprises a cylindrical casing formed from a nozzle, a head housing and a rear cylinder connected in an order, an inner plasma generating device and an insulating layer between the cylindrical casing and the plasma generating device. The rear cylinder is connected to the mounting member of the plasma sterilizer. The atmospheric plasma sterilizer used in a medical device sterilization apparatus can carry out sterilization and disinfection under atmospheric conditions, does not need a low air pressure environment, and can realize sterilization and disinfection through placement of the surface of a medical apparatus to be treated under injection of a plasma flow.

A powder material plasma sterilizer comprises a machine case, a feeding vibrating bed and a discharging vibrating bed are arranged in the machine case, a sterilizing cavity is formed between the feeding vibrating bed and the discharging vibrating bed, a plasma generating device is arranged in the sterilizing cavity, the plasma generating device comprises a positive electrode plate and a negative electrode plate which are symmetrically arranged in an up-down mode, a plurality of micro pipes are arranged in the sterilizing cavity between the positive electrode plate and the negative electrode plate, feeding ports of the micro pipes are connected with a discharging port of the feeding vibrating bed through a flow divider, discharging ports of the micro pipes are connected with the discharging vibrating bed, feeding electromagnetic clamping valves are arranged on the micro pipes close to the feeding ports, and discharging electromagnetic clamping valves are arranged on the micro pipes close to the discharging ports. By means of the plasma generating device, normal-temperature sterilization of powder materials is achieved. By means of the micro pipes, separated sterilization is achieved, and good sterilizing effects are guaranteed. Due to the feeding vibrating bed and the discharging vibrating bed, powder materials can flow and be conveyed. Due to the discharging electromagnetic clamping valves, the sealing performance is achieved.