CN111821619B - Biological aerosol pressure release device with uniform spraying concentration - Google Patents

Abstract

The application discloses biological aerosol release device to solve the problem that the agent concentration of spilling is inhomogeneous when biological aerosol material sprinkles, and easily takes place agent blocking phenomenon. The device comprises a material cabin, a high-pressure gas cylinder, a mixing barrel and a material rotating barrel arranged between the material cabin and the mixing barrel, wherein the material rotating barrel comprises at least one material rotating separation cavity which can rotate in the material rotating barrel and is provided with an opening, and when the material rotating separation cavity rotates to be at a first position, the opening is used as a feeding hole to fill a preset amount of biological agent materials from the material cabin; when the material transferring separation cavity rotates to be at the second position, the opening is used as a discharge hole to feed the preset amount of the biological agent into the mixing cylinder, and when the high-pressure gas enters the mixing cylinder, the material transferring separation cavity and the mixing cylinder form a sealed space.

Description

Biological aerosol pressure release device with uniform spraying concentration

Technical Field

The application relates to a biological material scattering technology, in particular to a pressure release device for spraying biological aerosol by utilizing gas pressure.

Background

Bioaerosols generally refer to aerosols having an aerodynamic diameter of up to 100 μm containing microorganisms or derived from biological materials. The bioaerosol particles include viruses, bacteria, fungi, pollen, allergens, rickettsia, chlamydia, animal and plant derived proteins, various mycotoxins and their fragments and secretions, and the like. Bioaerosols include not only hazardous substances but also environmentally friendly beneficial substances and can be used in a variety of applications, such as for extinguishing small fires in inaccessible areas, for forest protection, and for cloud and fog applications to prevent hailstones from falling or to stimulate precipitation.

Since bioaerosols generally have certain viscosity and are easily attached to objects, when bioaerosols are sprayed on a suction tube or a nozzle device made of materials such as common polyvinyl chloride (PVC), Ethylene Propylene Diene Monomer (EPDM), polypropylene (PP), etc., the bioaerosols are easily blocked.

In addition, the existing spraying equipment introduces high-pressure gas into a sealed tank to mix with the agent, but the gas is continuously supplied in the tank along with the spraying of the gas-material mixed substance, but the agent is less and less, so that the mass concentration of the gas-material mixed substance in the tank is lower and lower, and meanwhile, the gas and the agent are difficult to be fully mixed, so that the concentration of the sprayed agent is uneven.

Disclosure of Invention

The application aims to provide a bioaerosol release device to solve the problems that the concentration of a sprayed agent is not uniform when bioaerosol materials are sprayed, and the agent is easy to block.

To achieve the above object, the present application discloses a bioaerosol delivery device comprising: a bin for holding a predetermined amount of a biologic agent; a high-pressure gas cylinder filled with high-pressure gas; the mixing cylinder is connected with the high-pressure gas cylinder through a gas inlet pipe, and is used for uniformly mixing high-pressure gas entering through the gas inlet pipe with the biological agent material fed into the material cabin to form a high-pressure mixture and releasing the high-pressure mixture through a material suction pipe; wherein the mixing device further comprises a material rotating barrel arranged between the material cabin and the mixing barrel, the material rotating barrel comprises at least one material rotating separation chamber which can rotate in the material rotating barrel and is provided with an opening, and when the material rotating separation chamber rotates to be in a first position, the opening is used as a feeding hole to fill a preset amount of biological agent materials from the material cabin; when the material transferring separation cavity rotates to be at the second position, the opening is used as a discharge hole to feed the preset amount of the biological agent into the mixing cylinder, and when the high-pressure gas enters the mixing cylinder, the material transferring separation cavity and the mixing cylinder form a sealed space.

According to a further embodiment, the mixing drum has a circular cross-section cavity with a first opening communicating with the material compartment and a second opening communicating with the mixing drum; the rotary material transfer device is characterized in that a rotary shaft is axially arranged in the cavity along the circular cross section of the cavity, at least a first sealing baffle and a second sealing baffle are radially arranged on the rotary shaft, a space between the sealing baffles forms the material transfer separation cavity, and a moving sealing structure is formed between the sealing side edge of each sealing baffle and the inner wall of the cavity.

Wherein the moving seal structure comprises a seal material disposed on a seal side of the seal flap. Preferably, the inner wall surface of the cavity is provided with a polytetrafluoroethylene material coating, so that the sealing performance between the cavity and the sealing material is prevented from being influenced due to the fact that the biological agent is adhered to the inner wall surface of the cavity.

Furthermore, a first sealing baffle, a second sealing baffle, a third sealing baffle and a fourth sealing baffle are radially arranged on the rotating shaft, and the four sealing baffles are uniformly arranged along the circumferential direction of the rotating shaft.

Still further, when the material transfer compartment rotates to the first side edge of the second opening along the radial outer side edge of the sealing baffle behind the rotating direction, the material transfer compartment rotates to at least the second side edge of the second opening along the radial outer side edge of the sealing baffle in front of the rotating direction.

And the second opening is provided with a first side edge and a second side edge, and the first side edge and the second side edge of the second opening are provided with a protrusion part used for extruding the sealing material on the radial outer side edge of the sealing baffle. When the sealing baffle rotates to the edge of the second opening, the protrusion presses the sealing material on the radial outer side edge of the sealing baffle, so that the sealing effect between the sealing baffle and the inner wall surface of the cavity of the material rotating barrel is further increased, and the material rotating separation cavity and the material mixing barrel form a sealing space with higher sealing performance.

The protruding portion comprises a recessed portion arranged on the top surface, when the rotating motion of the rotating shaft is locked, the radial outer side edge of the sealing baffle stays in the recessed portion, and therefore the sealing baffle is prevented from rotating and displacing under the pressure of high-pressure gas when the high-pressure gas is introduced into the mixing cylinder.

Preferably, the bottom of the recess is higher than the inner wall surface of the rotary cylinder cavity around the recess, so that the radial outer side edge of the sealing baffle can be further pressed compared with the inner wall surface of the rotary cylinder cavity around the recess, and the sealing performance is prevented from being reduced.

According to another embodiment, the suction pipe is made of teflon or other material with an inner wall forming a teflon material layer, the outer end of the suction pipe is connected with the nozzle through the injection pipe, and the injection pipe and the inner wall of the flow passage of the nozzle are coated with teflon material.

Further, the material suction pipe is provided with a plurality of bending sections, and the included angle between every two adjacent bending sections is 130-140 degrees, more preferably 135 degrees.

Or optionally, the part of the material suction pipe, which is positioned outside the mixing barrel, forms a spiral structure.

According to a further embodiment, the air outlet of the air inlet tube is provided with turbulence-forming structures.

Wherein the turbulence forming structure comprises: the tail end of the air inlet pipe is closed, at least a first air outlet and a second air outlet are arranged on the side wall, opposite to the side wall, of the air inlet pipe near the tail end, in the direction tangent to the side wall, and the outlet directions of the air outlets are opposite.

Optionally, the outlet direction of the air outlet is arranged orthogonally to the extending direction of the air inlet pipe, and more preferably, the outlet direction of the air outlet is tangent to the inner wall surface of the mixing barrel.

Or alternatively, the outlet direction of the air outlet and the extending direction of the air inlet pipe form a preset angle which is about 30-45 degrees, and more preferably, the outlet direction of the air outlet is tangent to the inner wall surface of the mixing barrel.

Alternatively, the turbulence forming structure comprises: the tail end of the air inlet pipe is sealed by a bottom wall, at least a first air outlet hole and a second air outlet hole are arranged on the bottom wall, the center line of the air outlet holes inclines for a preset angle relative to the central axis of the tail end of the air inlet pipe, and the air outlet holes are arranged in a central symmetry mode relative to the central axis of the tail end of the air inlet pipe or a certain point on the central axis.

Further preferably, three or four air outlet holes are formed in the bottom wall, and the air outlet holes are uniformly arranged along the circumferential direction of the central axis of the tail end of the air inlet pipe.

According to a further embodiment, the high-pressure gas cylinder is arranged outside the mixing bowl, and the gas inlet pipe is provided with a pressure control unit. Optionally, the pressure control unit includes a throttle valve connected to the intake pipe and a pressure controller for controlling an opening degree of the throttle valve.

Based on the technical scheme that this application provided, compare with prior art, the device changes material mechanism through setting up, can realize that agent and high-pressure gas's ration mixes to the agent concentration of guaranteeing to spout is even.

In addition, by using or coating polytetrafluoroethylene materials in spraying channels such as the material suction pipe and the nozzle, the problem of blockage caused by adhesion of biological aerosol materials on the pipe wall is avoided.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of a bioaerosol pressure relief device according to an embodiment of the present application;

FIG. 2 is a schematic view of a sealing baffle in cooperation with a protrusion on the edge of an opening according to an embodiment of the present application;

FIG. 3 is a schematic structural view of a turbulence generating mechanism according to one embodiment of the present application;

fig. 4 is a schematic structural view of a turbulence-forming mechanism according to another embodiment of the present application.

1-a material cabin and 11-a material filling port;

2-rotating cylinder, 21-sealing baffle, 211-sealing material, 22-rotating shaft, 23-rotating material compartment, 24-protrusion, 241-recess;

3-mixing barrel;

4-a high-pressure gas cylinder;

5-an air inlet pipe, 50-a bottom wall, 51-a first air outlet, 52-a second air outlet, 53-a first air outlet and 54-a second air outlet;

6-a pressure control unit;

7-a material suction pipe, 71-a bending part;

8-a nozzle;

9-a release valve;

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Moreover, when a statement such as "at least one of" appears after a list of listed features, the entirety of the listed features is modified rather than modifying individual elements in the list. Furthermore, when describing embodiments of the present application, the use of "may" mean "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1, according to one embodiment of the present application, there is disclosed a biological agent release device comprising: a material cabin 1 for accommodating a predetermined amount of biological agent; a high-pressure gas cylinder 4 filled with high-pressure gas; and the mixing cylinder 3 is connected with the high-pressure gas cylinder 4 through a gas inlet pipe 5, and is used for uniformly mixing the high-pressure gas entering through the gas inlet pipe 5 with the biological agent fed into the material cabin 1 to form a high-pressure gas material mixture, such as biological aerosol, and releasing the high-pressure gas material mixture through the material suction pipe 3.

In this embodiment, as shown in fig. 1, the material compartment 1 is arranged above the mixing bowl 3, and below it, there is a discharge opening 11. The high-pressure gas cylinder 4 is arranged outside the mixing cylinder 3, and the outlet of the high-pressure gas cylinder is communicated with the interior of the mixing cylinder 3 through a gas inlet pipe 5. The discharge pipe 7 extends partly into the mixing bowl 3 and partly outside the mixing bowl 3, and has a nozzle 8 connected to its end.

According to an alternative embodiment, the part of the inlet pipe 5 located in the mixing bowl 3 and the part of the outlet pipe 7 located in the mixing bowl 3 extend substantially in the direction of the side wall of the mixing bowl 3. The end of the part of the inlet pipe 5 located in the mixing bowl 3 and the end of the part of the outlet pipe 7 located in the mixing bowl 3 are both located close to the mixing bowl bottom wall, preferably, the end of the part of the inlet pipe 5 located in the mixing bowl 3 is higher than the end of the part of the outlet pipe 7 located in the mixing bowl 3 by a predetermined distance relative to the mixing bowl bottom wall, so as to avoid that the high-pressure gas just output from the gas outlet is blocked by the mixing bowl bottom wall and the flow rate is reduced.

The device further comprises a rotor barrel 2 arranged between said bin 1 and said mixing drum 3, which rotor barrel 2 comprises at least one rotor compartment 23, which rotor compartment 23 is rotatable in said rotor barrel. As shown in fig. 1, the rotor barrel 2 has a cavity with a circular cross section, for example, the rotor barrel 2 has a spherical or cylindrical structure. The cavity is provided with a first opening (an upper opening in figure 1) communicated with the material cabin 1 and a second opening (a lower opening in figure 1) communicated with the mixing barrel 3; a rotating shaft 22 is axially arranged in the cavity along the circular section of the cavity, a plurality of sealing baffles 21 are radially arranged on the rotating shaft 22, and the space between the sealing baffles 21 forms the material transferring partition cavity 23.

According to an embodiment of this embodiment, at least three sealing baffles 21 are arranged on the rotating shaft 22, thereby forming at least three material transfer compartments 23. For example, in the embodiment shown in fig. 1, four sealing baffles 21 are arranged on the rotating shaft 22, the sealing baffles 21 are configured as fan-shaped plates or rectangular plates, one side edge of each sealing baffle 21 is used as a mounting side edge and is fixedly connected to the rotating shaft 22, and the other side edges are used as sealing side edges and respectively form a moving sealing structure with the inner wall surface of the rotating cylinder 2, namely the inner wall surface of the cavity. For example, sealing rubber strips are respectively arranged on the sealing side edges, and each sealing baffle 21 is in contact with the inner wall surface of the rotary cylinder 2 through the sealing rubber strips 211.

Preferably, the inner wall surface of the cavity is provided with a polytetrafluoroethylene material coating, so that the sealing performance between the cavity and the sealing material is prevented from being influenced due to the fact that the biological agent is adhered to the inner wall surface of the cavity.

According to another embodiment, the sealing baffles 21 are evenly distributed along the circumference of the rotating shaft 22, i.e. the volume of the formed material transfer compartment 23 is the same. Alternatively, the plurality of sealing baffles 21 are unevenly distributed along the circumference of the rotating shaft 22, that is, the volume of the formed material transfer compartment 23 is at least partially different, so that aerosol spraying with different concentrations can be realized according to the requirement.

An opening is formed between the radially outer sides of two adjacent sealing baffles 21 (the radially outer sides refer to the sides of the sealing sides which are located at the radially outer sides of the sealing baffles and are opposite to the mounting sides), and when the material transfer compartment 23 rotates to the first position, the opening is used as a feeding hole for filling a predetermined amount of the biological agent material from the material cabin 1; when the transfer compartment 23 is rotated into the second position, the opening acts as a discharge port for the predetermined amount of the bio-agent charge to be fed into the mixing drum 3.

When the biological agent is fed into the mixing cylinder 3 through the material transferring separation cavity 23, high-pressure gas in the high-pressure gas cylinder 4 enters the mixing cylinder 3 through the gas inlet pipe 5 and is fully mixed to form a high-pressure gas-material mixture.

When high-pressure gas enters the mixing drum, in order to further improve the sealing performance of the sealed space formed by the material transfer compartment 23 and the mixing drum 3, when the radially outer side edge of the sealing baffle 21 behind the material transfer compartment 23 in the rotation direction rotates to the first side edge of the second opening, the radially outer side edge of the sealing baffle 21 in front of the material transfer compartment in the rotation direction rotates to at least the second side edge of the second opening, and as shown in the state of fig. 1, the sealing baffle of one material transfer compartment adjacent to the material transfer compartment 23 shown in the figure is located.

Wherein, the second opening is provided with a protrusion 24 near the first side edge and the second side edge for further pressing the sealing material on the radial outer side edge of the sealing baffle plate. When the sealing baffle 21 is rotated to the second opening edge, the protrusion 24 presses the sealing material on the radial outer side edge of the sealing baffle, so as to further increase the sealing effect between the sealing baffle and the inner wall surface of the rotor barrel cavity, and the rotor separation chamber 23 and the mixing barrel 3 form a sealed space with higher sealing performance. Alternatively, the projection 24 may be formed in a strip shape corresponding to the contour line of the radially outer side of the seal retainer 21 on the inner wall surface of the rotor tube 2.

According to an alternative embodiment, said protrusion 24 of at least one of the first and second side edges of said second opening comprises a recess 241 provided in the top surface. The recess 241 forms a groove extending along the length of the protrusion 24, and when the predetermined amount of the bio-agent is completely introduced into the mixing drum 3, the rotation of the shaft 22 is locked, and the radially outer edge of the sealing baffle 21 is retained in the groove, so that the sealing baffle 21 is prevented from being undesirably displaced by the pressure of the high-pressure gas when the high-pressure gas is introduced into the mixing drum 3.

Preferably, the bottom of the groove is higher than the inner wall surface of the rotary cylinder cavity around the groove, so that the free end of the sealing baffle can be further pressed compared with the inner wall surface of the rotary cylinder cavity around the groove, and the sealing performance is not reduced.

It will be understood by those skilled in the art that the protrusion 24 may be separately manufactured and then mounted on the inner wall of the barrel 2, or may be integrally formed with the inner wall of the barrel 2. Further, the shape of the projection 24 in the rotating direction of the seal retainer 21 is a smooth surface smoothly connected to the inner wall surface of the barrel 2, for example, the smooth surface is constituted by a smoothly connected arc surface, thereby preventing the seal retainer 21 from generating a noticeable feeling of blocking in the rotating motion before reaching the projection and entering the recess and after leaving the recess.

According to another embodiment, the suction pipe 7 is made of polytetrafluoroethylene material, or other materials such as polyvinyl chloride (PVC) material, Ethylene Propylene Diene Monomer (EPDM) material, polypropylene (PP) material, etc. with the inner wall coated with polytetrafluoroethylene material. The outer end part of the material suction pipe 7 is connected with a nozzle through a spraying pipe, and the inner walls of the flow channels of the spraying pipe and the nozzle are coated with polytetrafluoroethylene materials.

As shown in fig. 1, the material suction pipe has a plurality of bending sections, and the included angle between adjacent bending sections is 130 ° to 140 °, and more preferably, the included angle is 135 °, so as to avoid the gas-material mixture entering the material suction pipe 7 from forming a blockage at the bending position.

According to a further embodiment, the air outlet of the air inlet tube 5 is provided with turbulence-forming structures.

Wherein the turbulence-forming structure is arranged such that: the end of the air outlet side of the air inlet pipe is sealed by a bottom wall 50, and at least a first air outlet 51 and a second air outlet 52 are arranged on the opposite side walls of the air inlet pipe 5 near the end along the direction tangential to the side walls respectively, and the outlet directions of the air outlets are opposite. Therefore, the high-pressure gas ejected from the gas outlets in opposite directions forms spiral airflow in the mixing cylinder 3, so that the gas and the material are mixed more quickly and uniformly.

Preferably, the outlet direction quadrature of gas outlet is in the setting of intake pipe extending direction, more preferably, the outlet direction of gas outlet with the internal wall face of compounding section of thick bamboo is tangent for high-pressure draught rotates along compounding section of thick bamboo inner wall at a high speed, thereby forms spiral air current in the whole cavity of compounding section of thick bamboo rapidly, has further improved gas-material mixing effect.

Or alternatively, the outlet direction of the air outlet and the extending direction of the air inlet pipe 5 form a preset angle which is about 30-45 degrees, and the outlet direction of the air outlet is tangent to the inner wall surface of the mixing cylinder, so that turbulent flow is formed in the height direction of the cavity of the mixing cylinder 3, and the gas-material mixing effect is improved.

As can be understood by those skilled in the art, the number of the air outlets can be multiple, for example, 3 to 6, or more, and the air outlets are uniformly arranged along the circumferential direction of the air inlet pipe 5.

Or the turbulence forming structure comprises: the end of the inlet pipe is closed by a bottom wall 50, at least a first outlet hole 53 and a second outlet hole 54 are arranged on the bottom wall, the central lines of the outlet holes 53 and 54 are inclined at a predetermined angle relative to the central axis of the end of the inlet pipe 5, and the outlet holes 53 and 54 are arranged in central symmetry relative to the central axis of the end of the inlet pipe 5 or a certain point on the central axis, so that the high-pressure gas flowing out of the outlet holes forms a spiral gas flow as shown by the arrow in fig. 4.

Preferably, three or four air outlet holes or more air outlet holes are formed in the bottom wall, and the air outlet holes are uniformly arranged along the circumferential direction of the central axis at the tail end of the air inlet pipe.

It will be appreciated by the person skilled in the art that different embodiments of the turbulence creating means described above may be combined, for example by providing the air outlet opening in the side wall of the air inlet duct and the outlet opening in the bottom wall at the same time, to provide a better mixing effect.

According to a further embodiment, the gas cylinder 4 is arranged outside the mixing bowl 3, and the gas inlet pipe 5 is provided with a pressure control unit 6. Alternatively, the pressure control unit 6 includes a throttle valve connected to the intake pipe and a pressure controller for controlling the opening degree of the throttle valve.

And a release valve 9 for controlling the release of the gas-material mixture is arranged on the discharge pipe 7.

The shaft 22 is driven by a motor (not shown), which is optionally controlled by a servo. It will be appreciated by those skilled in the art that the spindle may be driven by other mechanisms, or manually.

According to another embodiment, the material cabin 1 and the material rotating cylinder 2, and the material rotating cylinder 2 and the material mixing cylinder 3 are respectively detachably connected, so that different material cabins and/or material rotating cylinders and material mixing cylinders can be replaced, and spraying of biological aerosol materials with different concentrations and capacities is realized.

The high-pressure gas cylinder 4 and the air inlet pipe 5 are also detachably connected, so that quick air exchange can be realized by replacing the high-pressure gas cylinder.

The filling opening 11 of the material cabin 1 is a controllable filling opening, for example, a controllable baffle plate is used for realizing opening and closing control.

The operation of the bioaerosol pressure relief device according to the embodiments of the present application is described below.

The predetermined amount of the bio-agent in the material compartment 1 is filled into a material transfer compartment 23 through the injection opening 11, and after the rotating shaft 22 is driven to rotate for a predetermined angle, the bio-agent falls into the mixing drum 3 from the material transfer compartment 23, the radial outer side of the sealing baffle 21 of the material transfer compartment 23 enters the groove, and the rotating motion of the rotating shaft is locked, for example, the rotating shaft is locked through a servo control or some locking mechanism.

The pressure control unit 6 controls high-pressure gas to enter a sealed space formed by the mixing cylinder and the material transferring separation cavity through the gas inlet pipe 5, and the high-pressure gas forms turbulence in the sealed space and is fully mixed with the biological agent to form a gas-material mixture. In the application, a uniform gas-material mixture with a preset concentration can be formed by controlling the proportioning between the air inflow and the biological agent.

The control release valve 9 opens, spraying the gas-fuel mixture to the outside through the nozzle 8. In the present application, the nozzle 8 may be a spiral nozzle to further prevent clogging.

The above embodiments are only for illustrating the technical solutions of the present application and not for limiting the same, and although the present application is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications to the embodiments of the present application or equivalent replacements of some technical features may be made without departing from the spirit of the technical solution of the present application, which is to be covered by the technical solution of the present application.

Claims (7)

1. A biologic agent delivery device comprising: a bin for holding a predetermined amount of a biologic agent; a high-pressure gas cylinder filled with high-pressure gas; the mixing cylinder is connected with the high-pressure gas cylinder through a gas inlet pipe, and is used for uniformly mixing high-pressure gas entering through the gas inlet pipe with the biological agent material fed into the material cabin to form a high-pressure mixture and releasing the high-pressure mixture through a material suction pipe; characterized by further comprising a rotary barrel arranged between the material compartment and the mixing barrel, the rotary barrel comprising at least one rotary material compartment which is rotatable in the rotary barrel and has an opening which serves as a feed inlet for filling a predetermined amount of the biological agent from the material compartment when the rotary material compartment is rotated to a first position; when the material transferring separation cavity rotates to be at the second position, the opening is used as a discharge hole to feed the preset amount of the biological agent into the mixing cylinder, and when the high-pressure gas enters the mixing cylinder, the material transferring separation cavity and the mixing cylinder form a sealed space; the material cabin and the material rotating barrel are detachably connected, and the material rotating barrel and the material mixing barrel are detachably connected; a discharge port is arranged below the material cabin and is controlled to be opened and closed through a controllable baffle;

the material rotating barrel is provided with a cavity with a circular section, and the cavity is provided with a first opening communicated with the material cabin and a second opening communicated with the material mixing barrel; a rotating shaft is axially arranged in the cavity along the circular cross section of the cavity, at least a first sealing baffle and a second sealing baffle are radially arranged on the rotating shaft, a material transferring partition cavity is formed in the space between the sealing baffles, and a moving sealing structure is formed between the sealing side edge of each sealing baffle and the inner wall of the cavity;

the first side edge and the second side edge of the second opening are provided with a protruding part used for extruding the radial outer side edge of the sealing baffle plate, and when the sealing baffle plate rotates to the edge of the second opening, the protruding part extrudes the radial outer side edge of the sealing baffle plate;

the projection includes a recess provided in a top surface in which a radially outer side of the seal dam rests when rotational movement of the shaft is locked.

2. The biological agent release device of claim 1, wherein the shaft has a first sealing baffle, a second sealing baffle, a third sealing baffle and a fourth sealing baffle radially disposed thereon, and the four sealing baffles are circumferentially and uniformly disposed along the shaft.

3. The biological agent dosage release device of claim 2, wherein when the transfer compartment rotates from the radially outer edge of the sealing barrier rearward in the direction of rotation to the first side edge of the second opening, the transfer compartment rotates from the radially outer edge of the sealing barrier forward in the direction of rotation to at least the second side edge of the second opening.

4. The biological agent release device according to any one of claims 1 to 3, wherein the suction tube is made of polytetrafluoroethylene material or the inner wall of the suction tube is formed with a polytetrafluoroethylene material layer, the outer end part of the suction tube is provided with a nozzle connected through a spray tube, and the inner walls of the flow passage of the spray tube and the spray head are coated with polytetrafluoroethylene material.

5. The biological agent release device of claim 4, wherein the straw has a plurality of bending sections, and the included angle between adjacent bending sections is 130-140 °.

6. The biologic agent delivery apparatus of claim 1, wherein said air inlet tube has an air outlet with turbulence-forming structure.

7. The biological agent charge releasing device of claim 1, wherein the high pressure gas cylinder is arranged outside the mixing cylinder, and the gas inlet pipe is provided with a pressure control unit.

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