阅读说明：本技术 一种固体粉体升华工艺 (Solid powder sublimation process ) 是由 仲从萍 于 2021-09-27 设计创作，主要内容包括：本发明公开了一种固体粉体升华工艺,属于固体升华技术领域,本方案实现当固体粉体添加到透气网板上后,干燥管的分子筛干燥剂对其上的水分进行吸附,同时干燥灯加热,使热空气向上流动,流经固体粉体,进一步干燥,且膨胀气囊受热膨胀推动活塞挤压二氧化碳气体流动至导热管内,并通过二氧化碳气体的吸热作用,使热量聚集在导热管处,从而使热量停留在活动框处,增强干燥效果,而二氧化碳气体继续流动进入到伸缩气囊内,使其延伸,推动活动球在U形杆上向左运动,同时滑轮在滑槽上滑动对其进行辅助,并在活动球运动过程中带动其间歇上下运动,使透气网板间歇上下运动,增大固体粉末与热空气的接触面积,使干燥更加充分全面。(The invention discloses a solid powder sublimation process, which belongs to the technical field of solid sublimation, and the scheme realizes that after solid powder is added on a breathable screen plate, a molecular sieve drying agent of a drying tube adsorbs moisture on the solid powder, a drying lamp is heated at the same time, hot air flows upwards to flow through the solid powder and further dry the solid powder, an expansion air bag is heated and expanded to push a piston to extrude carbon dioxide gas to flow into a heat conduction tube, heat is gathered at the heat conduction tube through the heat absorption effect of the carbon dioxide gas, so that the heat stays at a movable frame, the drying effect is enhanced, the carbon dioxide gas continuously flows into a telescopic air bag to extend, a movable ball is pushed to move leftwards on a U-shaped rod, a pulley slides on a chute to assist the movable ball, and the movable ball is driven to move intermittently up and down in the moving process of the movable ball, so that the breathable screen plate moves intermittently up and down, the contact area of the solid powder and the hot air is increased, so that the drying is more complete.)

1. A solid powder sublimation process is characterized in that: the method comprises the following steps:

s1, firstly, taking the solid material to be sublimated, and putting the solid material into a grinding box for grinding treatment to enable the solid material to be ground into powder;

s2, placing the ground solid powder into a drying device, and fully drying the powder by the drying device;

s3, placing the solid powder into a suction filter, exhausting air through a vacuum pump, reducing pressure, properly heating to raise the temperature in the suction filter, driving the fixed powder to sublimate, stopping heating after sublimation is finished, and collecting the product after cooling.

2. The solid powder sublimation process of claim 1, wherein: drying device among S2 includes unable adjustment base (1), the fixed frame (2) of upper end fixedly connected with of unable adjustment base (1), be equipped with movable frame (4) in the fixed frame (2), the ventilative otter board (5) of fixedly connected with between the inner wall of movable frame (4), the embedded a plurality of drying tubes (6) that are equipped with of ventilative otter board (5), the inside packing of drying tube (6) has the molecular sieve drier, the through-hole that has a plurality of evenly distributed is opened and chiseled to the outer end of drying tube (6), the inner wall fixedly connected with plant fiber (7) of through-hole, fixedly connected with elastic membrane (3) between the outer end of movable frame (4) and the inner wall of fixed frame (2), dry lamp (8) are installed to the upper end of unable adjustment base (1), dry lamp (8) are located the downside of ventilative otter board (5), the upper end fixedly connected with drum inflator (10) of unable adjustment base (1), fixedly connected with heat conduction stick (9) between air drum cylinder (10) and drying lamp (8), the inside sliding connection of air drum cylinder (10) has piston (12), fixedly connected with inflation gasbag (11) between the lower extreme of piston (12) and the interior bottom end of air drum cylinder (10), it has carbon dioxide gas to fill between the upper end of piston (12) and the interior top end of air drum cylinder (10), activity frame (4) are equipped with heat pipe (14), the inner wall of activity frame (4) is all run through at the left and right sides both ends of heat pipe (14) to extend to its outside, the inner wall of fixed frame (2) is opened and is chiseled there are two bilateral symmetry's expansion gap, the activity gap is all passed at the left and right sides both ends of heat pipe (14) to extend to the outside of fixed frame (2), the right-hand member fixedly connected with gas guide cylinder (16) of fixed frame (2), the elasticity hose (13) is all fixedly connected with at the left and right sides both ends of heat pipe (14), the two elastic hoses are respectively and fixedly connected with the air drum cylinder (10) and the air guide cylinder (16), and the two elastic hoses (13) are respectively communicated with the interiors of the air drum cylinder (10) and the air guide cylinder (16).

3. The sublimation process of a solid powder according to claim 2, wherein: the right end of the air guide cylinder (16) is fixedly connected with an air guide tube (17), the left end of the air guide tube (17) is fixedly connected with a telescopic air bag (18), a through hole is drilled at the right end of the fixed frame (2), the left end of the telescopic air bag (18) passes through the through hole and extends into the fixed frame (2), the lower end of the fixing frame (2) is fixedly connected with a U-shaped rod (20), the outer end of the U-shaped rod (20) is sleeved with a movable ball (21), the lower end of the movable ball (21) is fixedly connected with a connecting rod (19), the right end of the connecting rod (19) is rotatably connected with the left end of the telescopic air bag (18), the outer end of the connecting rod (19) is fixedly connected with two pulleys (23) which are symmetrical front and back, the inner wall of the fixed frame (2) is provided with two sliding grooves (22) which are symmetrical front and back, and the pulley (23) is connected with the sliding grooves (22) in a sliding manner.

4. The sublimation process of a solid powder according to claim 2, wherein: and an extrusion valve (15) is fixedly connected between the inner walls of the elastic hoses (13) on the left side, and the initial state of the extrusion valve (15) is a furled state.

5. The sublimation process of a solid powder according to claim 2, wherein: the mesh aperture of the air-permeable mesh plate (5) is smaller than the particle size of the solid powder, and the surface of the air-permeable mesh plate (5) is coated with a corrosion-resistant coating.

6. The sublimation process of a solid powder according to claim 2, wherein: the outer end of the piston (12) is fixedly connected with a sealing ring, and the outer end of the sealing ring is in close contact with the inner wall of the air drum (10).

7. The solid powder sublimation process of claim 3, wherein: the outer end of the telescopic air bag (18) is arranged in a corrugated shape, and the surface of the telescopic air bag (18) is coated with an abrasion-resistant coating.

8. The solid powder sublimation process of claim 3, wherein: the inner wall of activity ball (21) is opened chisel and is had two longitudinal symmetry's spherical groove, two all rotate in the spherical groove and be connected with ball (24), two the outer end of ball (24) all contacts with the outer end of U-shaped pole (20).

9. The solid powder sublimation process of claim 3, wherein: the outer end of the sliding groove (22) is spirally arranged.

Technical Field

The invention relates to the technical field of solid sublimation, in particular to a solid powder sublimation process.

Background

Sublimation refers to a process of converting a solid substance into a gaseous or gaseous substance without passing through a liquid state under the condition that the pressure of the solid substance is equal to the external pressure, and converting the solid substance into a solid substance without passing through a liquid state under the condition that the pressure of the solid substance is equal to the external pressure, and is called normal pressure sublimation when the external pressure is 105Pa, and is called decompression sublimation or vacuum sublimation when the external pressure is lower than the value, and sublimation is one of methods for purifying a solid substance, and nonvolatile impurities can be removed by sublimation, or a solid mixture with different volatility can be separated.

In the solid object sublimation process, need carry out abundant drying to it, partial product can volatilize along with vapor when avoiding sublimating, influences the separation effect, but among the prior art, the solid object is abundant comprehensive inadequately when drying process, makes partial moisture be difficult for volatilizing, handles to cause the influence to subsequent sublimation, greatly reduced the sublimation effect.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a solid powder sublimation process, which can realize that after solid powder is added on a breathable net plate, a molecular sieve drying agent of a drying tube adsorbs moisture on the solid powder, a drying lamp heats the solid powder to enable hot air to flow upwards and flow through the solid powder for further drying, an expansion air bag is heated and expanded to push a piston to extrude carbon dioxide gas to flow into a heat conduction tube, the heat is gathered at the heat conduction tube through the heat absorption effect of the carbon dioxide gas, so that the heat stays at a movable frame to enhance the drying effect, the carbon dioxide gas continuously flows into a telescopic air bag to extend to push a movable ball to move leftwards on a U-shaped rod, a pulley slides on a chute to assist the movable ball and drives the movable ball to move intermittently up and down in the moving process of the movable ball, the breathable net plate intermittently moves up and down, the contact area of the solid powder and hot air is increased, the drying is more complete, and the drying effect is improved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A solid powder sublimation process comprises the following steps:

s1, firstly, taking the solid material to be sublimated, and putting the solid material into a grinding box for grinding treatment to enable the solid material to be ground into powder;

s2, placing the ground solid powder into a drying device, and fully drying the powder by the drying device;

s3, placing the solid powder into a suction filter, exhausting air through a vacuum pump, reducing pressure, properly heating to raise the temperature in the suction filter, driving the fixed powder to sublimate, stopping heating after sublimation is finished, and collecting the product after cooling.

Further, the drying device in the S2 includes a fixing base, a fixing frame is fixedly connected to the upper end of the fixing base, a movable frame is arranged in the fixing frame, a breathable net plate is fixedly connected between the inner walls of the movable frame, a plurality of drying tubes are embedded in the breathable net plate, molecular sieve drying agents are filled in the drying tubes, a plurality of uniformly distributed through holes are formed in the outer ends of the drying tubes, plant fibers are fixedly connected to the inner walls of the through holes, an elastic membrane is fixedly connected between the outer ends of the movable frame and the inner walls of the fixing frame, a drying lamp is installed at the upper end of the fixing base and located at the lower side of the breathable net plate, a gas drum is fixedly connected to the upper end of the fixing base, a heat conducting rod is fixedly connected between the gas drum and the drying lamp, a piston is slidably connected inside the gas drum, and an expansion airbag is fixedly connected between the lower end of the piston and the inner bottom end of the gas drum, the utility model discloses a solid powder drying device, including a piston, a gas blowing tube, a gas guide tube, two elastic hoses, and two elastic hoses are communicated with the inside of gas blowing tube and gas guide tube respectively, the upper end of piston and the interior top of gas blowing tube are filled with carbon dioxide gas, the movable frame is equipped with the heat pipe, the inner wall of movable frame is all run through at both ends about the heat pipe to extend to its outside, the inner wall of fixed frame is dug there are two bilateral symmetry's expansion mouth, the expansion mouth is all passed at both ends about the heat pipe, and extend to the outside of fixed frame, the right-hand member fixedly connected with the gas guide tube of fixed frame, the equal fixedly connected with elastic hose at both ends about the heat pipe, two elastic hoses are linked together with the inside of gas blowing tube and gas guide tube respectively, can realize that when solid powder is placed on the gas permeable screen board, the moisture in the drying device adsorbs the solid powder through its outstanding adsorptivity, makes moisture enter into in the drying tube through the through-hole under the dredging effect of plant fiber, the drying lamp is started simultaneously, the heat emitted by the drying lamp drives the surrounding temperature to rise, the surrounding air is heated to expand and flow upwards, the solid powder body flows through the breathable net plate, the moisture on the solid powder body is dried, the moisture on the solid powder body volatilizes faster, meanwhile, the heat conducting rod transmits partial heat on the drying lamp into the air drum, the expansion air bag in the drying lamp is thermally expanded, the pushing piston moves upwards to extrude the carbon dioxide gas on the upper side of the air drum, the carbon dioxide gas enters the heat conducting pipe through the elastic pipe and flows into the air drum, the carbon dioxide gas has a heat absorption effect, the heat can be absorbed and is gathered at the heat conducting pipe, the heat is stopped at the movable frame, the drying of the solid powder body is facilitated, and the drying is more complete.

Further, the right-hand member fixedly connected with air duct of air guide cylinder, the left end fixedly connected with flexible gasbag of air guide tube, the opening has been dug to the right-hand member of fixed frame, the left end of flexible gasbag passes the opening and extends to in the fixed frame, the lower extreme fixedly connected with U-shaped pole of fixed frame, the outer pot head of U-shaped pole is equipped with the movable ball, the lower extreme fixedly connected with connecting rod of movable ball, the right-hand member of connecting rod is connected with the left end rotation of flexible gasbag, the outer end fixedly connected with two symmetrical pulleys around of connecting rod, the inner wall of fixed frame is dug there are two symmetrical spouts around, pulley and spout sliding connection, along with the drum-in of carbon dioxide gas, carbon dioxide gas in the air guide cylinder enters into flexible gasbag through the air guide tube gradually and makes its inflation extend to promote the movable ball to move to the left side on the U-shaped pole through the connecting rod, when the movable ball moves to the left, the pulley assists the movable ball by sliding in the chute, and the sliding track of the pulley on the chute drives the movable ball to intermittently move up and down in the leftward movement process, so that the movable frame and the breathable net plate are driven to intermittently move up and down, solid powder is driven to move up and down in the drying process, the solid powder is fully and comprehensively contacted with hot air, and the drying efficiency of the solid powder is effectively improved.

Furthermore, an extrusion valve is fixedly connected between the inner walls of the elastic hoses on the left side, the initial state of the extrusion valve is a furled state, the extrusion valve is arranged, the initial state of the extrusion valve is set to be the furled state, carbon dioxide gas can be prevented from overflowing outwards, and after the extrusion valve is extruded, the extrusion valve is in an open state, and circulation of the carbon dioxide gas can be achieved.

Furthermore, the mesh aperture of the air-permeable mesh plate is smaller than the particle size of the solid powder, the surface of the air-permeable mesh plate is coated with the corrosion-resistant coating, the solid powder is not easy to leak downwards through the meshes of the air-permeable mesh plate by setting the mesh aperture of the air-permeable mesh plate to be smaller than the particle size of the solid powder, and the air-permeable mesh plate is not easy to corrode in the long-term use process by setting the corrosion-resistant coating, so that the service life of the air-permeable mesh plate is prolonged.

Further, the outer end fixedly connected with sealing washer of piston, the outer end of sealing washer and the inner wall in close contact with of air drum section of thick bamboo, through the setting of sealing washer, can reduce the possibility that carbon dioxide gas leaks downwards through the gap between piston and the air drum section of thick bamboo, the effectual leakproofness that has improved.

Further, the outer end of flexible gasbag is the corrugate setting, the surface coating of flexible gasbag has wear-resistant coating, establishes to the corrugate through the outer end with flexible gasbag, can realize going into the back at carbon dioxide gas, carries out the expansion fast and extends, and wear-resistant coating's setting reduces flexible gasbag and extends the friction influence between in-process and the opening inner wall, makes its difficult emergence wearing and tearing, prolongs its life.

Further, the inner wall of activity ball is excavated there are two longitudinal symmetry's spherical groove, two all rotate in the spherical groove and be connected with the ball, two the outer end of ball all contacts with the outer end of U-shaped pole, through being equipped with ball and spherical groove, makes more smoothly when the activity ball moves on the U-shaped pole, reduces the friction influence.

Further, the outer end of spout is the heliciform setting, establishes the heliciform through the outer end with the spout, makes the pulley can drive the activity ball at the slip in-process and carry out intermittent type nature up-and-down motion to drive activity frame and ventilative otter board and carry out intermittent type nature up-and-down motion, increase solid powder and hot-air's area of contact, improve drying effect.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

the scheme realizes that after solid powder is added on the breathable net plate, the molecular sieve drying agent of the drying tube adsorbs moisture on the drying tube, the drying lamp is heated to enable hot air to flow upwards and flow through the solid powder for further drying, the expansion air bag is heated to expand to push the piston to extrude carbon dioxide gas to flow into the heat conduction tube, and heat is gathered at the heat conduction tube through the heat absorption effect of the carbon dioxide gas, so that the heat is stopped at the movable frame to enhance the drying effect, the carbon dioxide gas continuously flows into the expansion air bag to extend to push the movable ball to move leftwards on the U-shaped rod, meanwhile, the pulley slides on the sliding groove to assist the movable ball and drives the movable ball to move upwards and downwards intermittently in the moving process of the movable ball, so that the breathable net plate intermittently moves upwards and downwards, the contact area of the solid powder and the hot air is increased, and the drying is more complete, the drying effect is improved.

Drawings

FIG. 1 is a flow chart of the solid powder sublimation process in the invention;

FIG. 2 is a schematic view of the overall structure of the drying apparatus according to the present invention;

FIG. 3 is a schematic top view of the gas-permeable net sheet according to the present invention;

FIG. 4 is a schematic side view of a drying duct according to the present invention;

FIG. 5 is a schematic sectional view of the telescopic airbag of the present invention;

fig. 6 is an enlarged schematic view of a portion a in fig. 5.

The reference numbers in the figures illustrate:

1. a fixed base; 2. a fixing frame; 3. an elastic film; 4. a movable frame; 5. a gas-permeable net plate; 6. a drying tube; 7. plant fibers; 8. a drying lamp; 9. a heat conducting rod; 10. an air drum; 11. inflating the balloon; 12. a piston; 13. an elastic hose; 14. a heat conducting pipe; 15. squeezing the valve; 16. an air guide cylinder; 17. an air duct; 18. a telescopic air bag; 19. a connecting rod; 20. a U-shaped rod; 21. a movable ball; 22. a chute; 23. a pulley; 24. and a ball.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1, a solid powder sublimation process includes the following steps:

s1, firstly, taking the solid material to be sublimated, and putting the solid material into a grinding box for grinding treatment to enable the solid material to be ground into powder;

s2, placing the ground solid powder into a drying device, and fully drying the powder by the drying device;

s3, placing the solid powder into a suction filter, exhausting air through a vacuum pump, reducing pressure, properly heating to raise the temperature in the suction filter, driving the fixed powder to sublimate, stopping heating after sublimation is finished, and collecting the product after cooling.

Referring to fig. 2-4, the drying device in S2 includes a fixed base 1, a fixed frame 2 is fixedly connected to the upper end of the fixed base 1, a movable frame 4 is disposed in the fixed frame 2, a breathable net plate 5 is fixedly connected between the inner walls of the movable frame 4, a plurality of drying tubes 6 are embedded in the breathable net plate 5, a molecular sieve drying agent is filled in the drying tubes 6, a plurality of uniformly distributed through holes are chiseled at the outer ends of the drying tubes 6, plant fibers 7 are fixedly connected to the inner walls of the through holes, an elastic membrane 3 is fixedly connected between the outer end of the movable frame 4 and the inner wall of the fixed frame 2, a drying lamp 8 is mounted at the upper end of the fixed base 1, the drying lamp 8 is located at the lower side of the breathable net plate 5, an air drum 10 is fixedly connected to the upper end of the fixed base 1, a heat conducting rod 9 is fixedly connected between the air drum 10 and the drying lamp 8, a piston 12 is slidably connected to the inside of the air drum 10, an expansion air bag 11 is fixedly connected between the lower end of the piston 12 and the inner bottom end of the air drum 10, carbon dioxide gas is filled between the upper end of the piston 12 and the inner top end of the air drum 10, the movable frame 4 is provided with a heat conduction pipe 14, the left and right ends of the heat conduction pipe 14 penetrate through the inner wall of the movable frame 4 and extend to the outer side of the movable frame, the inner wall of the fixed frame 2 is provided with two bilaterally symmetrical movable openings, the left and right ends of the heat conduction pipe 14 penetrate through the movable openings and extend to the outer side of the fixed frame 2, the right end of the fixed frame 2 is fixedly connected with an air guide cylinder 16, the left and right ends of the heat conduction pipe 14 are fixedly connected with elastic hoses 13, the two elastic hoses are respectively and fixedly connected with the air drum 10 and the air guide cylinder 16, the two elastic hoses 13 are respectively communicated with the interiors of the air drum 10 and the air guide cylinder 16, when solid powder is placed on the air-permeable mesh plate 5, the molecular sieve drying agent in the drying pipe 6 can absorb moisture on the solid powder through excellent adsorbability, moisture enters the drying tube 6 through the through hole under the dredging action of the plant fiber 7 and is adsorbed by the molecular sieve drying agent, the drying lamp 8 is started to emit heat to drive the surrounding temperature to rise, the surrounding air is heated to expand and flow upwards and flows through the breathable net plate 5 to dry solid powder, the moisture on the solid powder is volatilized faster, meanwhile, the heat conducting rod 9 transfers part of the heat on the drying lamp 8 into the air drum 10 to make the expansion air bag 11 inside the air drum expand by heating, the piston 12 is pushed to move upwards to extrude the carbon dioxide gas on the upper side of the air drum, the carbon dioxide gas enters the heat conducting tube 14 through the elastic tube 13 and then flows into the air drum 16, the carbon dioxide gas has the heat absorbing action and can absorb the heat and gather at the heat conducting tube 14, so that the heat stays at the movable frame 4 to facilitate the drying of the solid powder, so that the drying is more complete and comprehensive.

Referring to fig. 2-6, an air duct 17 is fixedly connected to the right end of an air guide tube 16, a telescopic air bag 18 is fixedly connected to the left end of the air duct 17, a through hole is cut in the right end of the fixed frame 2, the left end of the telescopic air bag 18 passes through the through hole and extends into the fixed frame 2, a U-shaped rod 20 is fixedly connected to the lower end of the fixed frame 2, a movable ball 21 is sleeved on the outer end of the U-shaped rod 20, a connecting rod 19 is fixedly connected to the lower end of the movable ball 21, the right end of the connecting rod 19 is rotatably connected to the left end of the telescopic air bag 18, two pulleys 23 which are symmetrical front and back are fixedly connected to the outer end of the connecting rod 19, two sliding grooves 22 which are symmetrical front and back are cut in the inner wall of the fixed frame 2, the pulleys 23 are slidably connected to the sliding grooves 22, and as the carbon dioxide gas is blown in, the carbon dioxide gas in the air guide tube 16 gradually enters the telescopic air bag 18 through the air duct 17 to expand and extend, and pushes the movable ball 21 to move to the left side on the U-shaped rod 20 through the connecting rod 19, when the movable ball 21 moves leftwards, the pulley 23 slides in the chute 22 to assist the movable ball 21, and the sliding track of the pulley 23 on the chute 22 drives the movable ball 21 to intermittently move upwards and downwards in the leftward movement process, so that the movable frame 4 and the breathable net plate 5 are driven to intermittently move upwards and downwards, the solid powder is driven to move upwards and downwards in the drying process, the solid powder is fully and comprehensively contacted with hot air, and the drying efficiency of the solid powder is effectively improved.

Referring to fig. 2-3, an extrusion valve 15 is fixedly connected between the inner walls of the elastic hoses 13 on the left side, the initial state of the extrusion valve 15 is a furled state, the extrusion valve 15 is arranged and the initial state is a furled state, so that the carbon dioxide gas can be prevented from overflowing outwards, and after being extruded, the extrusion valve is in an open state, so that the carbon dioxide gas can circulate, the mesh diameter of the air-permeable mesh plate 5 is smaller than the particle diameter of the solid powder, the surface of the air-permeable mesh plate 5 is coated with the corrosion-resistant coating, the solid powder can be prevented from leaking downwards through the meshes of the air-permeable mesh plate 5 by setting the mesh diameter of the air-permeable mesh plate 5 to be smaller than the particle diameter of the solid powder, and the corrosion-resistant coating can prevent the air-permeable mesh plate 5 from being corroded in the long-term use process, so as to prolong the service life of the air-permeable mesh plate 5, and the outer ends of the pistons 12 are fixedly connected with sealing rings, the outer end of the sealing ring is in close contact with the inner wall of the air drum 10, and the possibility that carbon dioxide gas leaks downwards through a gap between the piston 12 and the air drum 10 can be reduced through the arrangement of the sealing ring, so that the sealing performance is effectively improved.

Referring to fig. 2 and 5-6, the outer end of the telescopic airbag 18 is corrugated, the surface of the telescopic airbag 18 is coated with a wear-resistant coating, the outer end of the telescopic airbag 18 is corrugated, so that the telescopic airbag can expand and extend quickly after carbon dioxide gas is blown in, the wear-resistant coating is arranged to reduce the friction influence between the telescopic airbag 18 and the inner wall of the through opening during the extension process, so that the telescopic airbag is not easy to wear and the service life of the telescopic airbag is prolonged, the inner wall of the movable ball 21 is provided with two spherical grooves which are symmetrical up and down, the two spherical grooves are rotatably connected with the balls 24, the outer ends of the two balls 24 are in contact with the outer end of the U-shaped rod 20, the movable ball 21 moves on the U-shaped rod 20 more smoothly by arranging the balls 24 and the spherical grooves, the friction influence is reduced, the outer end of the chute 22 is spirally arranged, and the outer end of the chute 22 is spirally arranged, the pulley 23 can drive the movable ball 21 to intermittently move up and down in the sliding process, so that the movable frame 4 and the breathable net plate 5 are driven to intermittently move up and down, the contact area of the solid powder and hot air is increased, and the drying effect is improved.

In the invention, when a relevant technician uses the device, firstly, when the solid powder is placed on the ventilating net plate 5, the molecular sieve drying agent in the drying tube 6 absorbs the moisture on the solid powder through the excellent adsorbability, so that the moisture enters the drying tube 6 through the through holes under the dredging action of the plant fibers 7, the drying tube is absorbed by the molecular sieve drying agent, meanwhile, the drying lamp 8 is started to emit heat to drive the surrounding temperature to rise, the surrounding air is heated to expand and flow upwards, the air flows through the ventilating net plate 5 to dry the solid powder, the moisture on the solid powder is volatilized more quickly, meanwhile, the heat conducting rod 9 transfers part of heat on the drying lamp 8 into the air drum 10, the expansion air bag 11 in the drying lamp is heated to expand, the pushing piston 12 moves upwards to press the carbon dioxide gas on the upper side of the air bag, and the carbon dioxide gas enters the heat conducting tube 14 through the elastic tube 13, then flows into the air guide tube 16, and the carbon dioxide gas has heat absorption function and can absorb heat and gather at the heat conduction tube 14, so that the heat stays at the movable frame 4, thereby facilitating the drying of the solid powder, leading the drying to be more complete, along with the blowing of the carbon dioxide gas, the carbon dioxide gas in the air guide tube 16 gradually enters the telescopic air bag 18 through the air guide tube 17 to expand and extend, and pushes the movable ball 21 to move leftwards on the U-shaped rod 20 through the connecting rod 19, when the movable ball 21 moves leftwards, the pulley 23 assists the telescopic air bag 18 by sliding in the chute 22, and along with the sliding track of the pulley 23 on the chute 22, the movable ball 21 is driven to move upwards and downwards intermittently in the leftward movement process, thereby the movable frame 4 and the air-permeable mesh plate 5 are driven to move upwards and downwards intermittently in the drying process, so that the solid powder moves upwards and downwards, the contact between the drying agent and hot air is more complete, and the drying efficiency is effectively improved.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.