Drying device for honey solidification production

Abstract

The invention relates to the technical field of spray dryers, and provides a drying device for honey solidification production, which comprises a drying cylinder, a plurality of rotary clamping grooves, a wind direction adjusting mechanism, a sticking wall cleaning mechanism, a sealing cover body and an air supply mechanism, a collecting cone is communicated with an external cyclone separator, and the plurality of rotary clamping grooves are circumferentially formed in the side of the drying cylinder; the wind direction adjusting mechanisms correspond to the rotary clamping grooves one to one and are used for adjusting the wind direction of hot wind fed into the drying cylinder, the wall adhering cleaning mechanism is used for conveniently cleaning honey adhering to the wall, the sealing cover body is fixedly arranged above the drying cylinder, and the air supply mechanism is arranged on the side of the drying cylinder. The air supply mechanism is communicated with the multiple air direction adjusting mechanisms, the air supply mechanism is used for conveying hot air into the air direction adjusting mechanisms, and by means of the technical scheme, the problem that in the prior art, when a traditional centrifugal spray dryer is used for drying honey, the wall sticking phenomenon is difficult to relieve is solved.

Description

Technical Field

[0001] The invention relates to the technical field of spray dryers, and in particular to a drying device for honey solidification production. Background Art

[0002] In the process of food production, honey is often made into dry powder. The advantages are: honey itself contains a lot of water, which is easy to mutate if not stored properly, but easy to preserve after drying; it is easy to transport; the taste is more delicate; the nutrients in honey can be more stably retained, etc. Due to these advantages, honey is often dried and made into powder during industrial use. Spray drying or freeze drying is often used for drying. Spray drying uses a centrifugal spray dryer for drying. A cyclone separator and a fan are connected to the rear of the centrifugal spray dryer. The fan discharges the airflow in the dryer through the cyclone separator.

[0003] When using the spray drying method to make dry powder of honey, some additives are added to the honey, and then it is passed into a centrifugal spray dryer, where the honey is sprayed into a mist, and at the same time, it contacts with the high-temperature dry gas entering the dryer. The contact surface area between the mist honey and the hot air is greatly increased, so that the water in the honey evaporates rapidly, and the honey quickly turns into powder or fine particles. However, in this process, due to the large volume of the dryer, the low thermal conductivity, and the movement state of the hot air in the dryer, the mist honey before being completely dried will adhere to the inner wall of the dryer and continue to be heated and dried by the hot air flow. The honey that sticks to the wall will be burnt. The wall sticking phenomenon can be improved by changing the flow trajectory and flow rate of the gas inside the dryer, or by modifying the structure and materials of the drying tower. However, these methods are difficult to deal with honey whose viscosity or other properties have changed due to the adjustment of additives, and it is difficult to change the drying speed. Therefore, in order to minimize the wall sticking phenomenon when drying honey, for honey of different properties, we propose a drying device for honey solidification production. Summary of the invention

[0004] The invention provides a drying device for honey solidification production, which solves the problem in the related art that it is difficult to reduce the wall sticking phenomenon when the traditional centrifugal spray dryer is used to dry honey.

[0005] The technical solution of the present invention is as follows: A drying device for honey solidification production, comprising a drying cylinder, a rotating clamping groove, a wind direction adjustment mechanism, a wall-sticking cleaning mechanism, a sealing cover and an air supply mechanism, wherein a collecting cone is arranged below the drying cylinder, and the collecting cone is communicated with an external cyclone separator, a plurality of rotating clamping grooves are arranged, and a plurality of rotating clamping grooves are circumferentially arranged on the side of the drying cylinder, a plurality of wind direction adjustment mechanisms are arranged, and the wind direction adjustment mechanisms correspond to the rotating clamping grooves one by one, and the wind direction adjustment mechanisms are rotatably arranged in the rotating clamping grooves, and the wind direction adjustment mechanism is used to adjust the wind direction of hot air sent into the drying cylinder, a plurality of wall-sticking cleaning mechanisms are arranged, and the wall-sticking cleaning mechanisms are rotatably arranged on the wind direction adjustment mechanisms, and the wall-sticking cleaning mechanisms are arranged inside the drying cylinder, and the wall-sticking cleaning mechanisms are used to conveniently clean honey stuck to the wall, and the sealing cover is fixedly arranged above the drying cylinder, and the air supply mechanism is arranged on the side of the drying cylinder, and the air supply mechanism is communicated with a plurality of wind direction adjustment mechanisms, and the air supply mechanism is used to transport hot air to the wind direction adjustment mechanism.

[0006] The rotating clamping groove is composed of two arc-shaped plates arranged opposite to each other, and the wind direction adjustment mechanism passes through the rotating clamping groove. The wind direction adjustment mechanism includes an air supply frame, a rotating column and a driving cylinder. The air supply frame passes through the rotating clamping groove, and the rotating column is fixedly arranged at the center of the air supply frame. The rotating column is rotatably arranged in the rotating clamping groove, and the driving cylinder is rotatably arranged outside the drying cylinder. The output end of the driving cylinder is rotatably connected to the air supply frame, and a plurality of air supply holes are opened on one side of the air supply frame extending into the drying cylinder, and both sides of the air supply hole are rotatably connected to the wall cleaning mechanism.

[0007] The wall-sticking cleaning mechanism includes a rotating frame 1, a rotating frame 2, a cleaning plate 1 and a cleaning plate 2, the rotating frame 1 is rotatably connected to the air supply frame, the rotating frame 2 is rotatably connected to a side of the air supply frame away from the rotating frame 1, the cleaning plate 1 is detachably arranged on a side of the rotating frame 1 close to the collecting cone, the cleaning plate 2 is detachably arranged on a side of the rotating frame 2 close to the collecting cone, the rotating frame 1 rotatably connected to the air supply frame is rotatably connected to the rotating frame 2 on the adjacent air supply frame, the rotating frame 1 and the rotating frame 2 do not contact the side wall of the drying cylinder, and the rotating frame 1 and the rotating frame 2 are in contact with the sealing cover and the collecting cone on their upper and lower sides respectively.

[0008] The sealing cover body is provided with an injection pipe, a cleaning port and a sealing cover. The injection pipe is arranged through the center of the sealing cover body, and an atomizing nozzle is fixedly arranged at one end of the injection pipe extending into the drying cylinder. There are multiple cleaning ports, and the multiple cleaning ports are arranged in a ring shape on the sealing cover body. The cleaning ports correspond to the wall-stained cleaning mechanisms one by one, and the sealing cover is detachably arranged on the cleaning port.

[0009] The air supply mechanism includes an air supply duct, a heater, an air supply fan and an air guide duct. The air supply duct is arranged on the side of the drying cylinder. A plurality of heaters are arranged. The plurality of heaters are fixedly arranged on the air supply duct. The air outlet of the air supply fan is connected to the bottom of the air supply duct. The air guide duct is connected to the top of the air supply duct. A plurality of hoses are connected to the air guide duct. The hoses are connected to the middle part of the air supply frame.

[0010] The working principle and beneficial effects of the present invention are: 1. In the present invention, an air supply frame and a rotating clamping groove are provided, and the rotating column fits with two arc plates of the rotating clamping groove. The rotating column rotates in the rotating clamping groove and keeps a seal at the same time, so as to prevent the airflow in the drying cylinder from flowing to the outside through the rotating clamping groove. The air supply holes are arranged on the air supply frame. When the output end of the driving cylinder is extended, the air supply frame can be pushed to rotate in the rotating clamping groove, and the air supply frame rotates toward the center of the drying cylinder, so that the airflow blown out of the air supply hole is blown toward a position closer to the center of the drying cylinder, resulting in a smaller vortex diameter formed by the airflow. Then, the flow rate of the airflow rotation can be controlled by controlling the flow rate of the hot air supplied, so that the mist honey is more difficult to move toward the wall-sticking cleaning mechanism under the action of centrifugal force to cause the wall-sticking phenomenon. According to different viscosities of honey, the diameter and rotation speed of the mist honey rotating in the drying cylinder can be adjusted by controlling the angle of the hot air blowing and the speed of the hot air flow. 2. In the present invention, by providing a rotating frame 1 and a rotating frame 2, when the air supply frame rotates, the rotating frame 1 and the rotating frame 2 rotate along with the air supply frame, and shield the rotating clamping groove and the air supply frame, so that the honey adhering to the wall can contact the air supply frame and the rotating clamping groove as little as possible, thereby reducing the difficulty of subsequent cleaning. At the same time, since the upper and lower sides of the rotating frame 1 and the rotating frame 2 are respectively fitted with the sealing cover body and the collecting cone, the mist honey will not contact the inner wall of the drying cylinder, and it is ensured as much as possible that the honey will not contact the inner wall of the drying cylinder, thereby reducing the difficulty of subsequent cleaning. At the same time, after the sealing cover is removed, when the output end of the driving cylinder drives the air supply frame to rotate to a specified angle, the cleaning plate 1 and the cleaning plate 2 can be taken out through the cleaning port for easy cleaning. 3. In the present invention, a wind direction adjusting mechanism is provided so that the direction of airflow rotation in the drying cylinder can be adjusted, thereby controlling the diameter of the vortex formed by the airflow, thereby controlling the trajectory of the atomized honey moving along the airflow in the drying cylinder, and reducing the phenomenon of honey sticking to the wall. By providing a wall cleaning mechanism, honey can be prevented from sticking to a position that is inconvenient to clean. At the same time, the honey stuck to the wall can be easily cleaned by the conveniently detachable cleaning plate 1 and cleaning plate 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention from another perspective; Figure 3 It is a schematic diagram of the internal cross-sectional structure of the drying cylinder in the present invention; Figure 4 It is a partial cross-sectional structural schematic diagram of the rotating clamping groove in the present invention; Figure 5 It is a partial structural schematic diagram of the wind direction adjustment mechanism and the wall cleaning mechanism in the present invention; Figure 6 It is a partial structural schematic diagram of the cleaning port and the sealing cover in the present invention.

[0013] In the figure: 1. Drying cylinder; 2. Collecting cone; 3. Rotating clamping groove; 4. Sealing cover; 5. Air supply frame; 6. Rotating column; 7. Driving cylinder; 8. Air supply hole; 9. Rotating frame one; 10. Rotating frame two; 11. Cleaning plate one; 12. Cleaning plate two; 13. Injection pipe; 14. Cleaning port; 15. Sealing cover; 16. Air supply duct; 17. Heater; 18. Blower; 19. Air guide pipe; 20. Hose. DETAILED DESCRIPTION

[0014] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] like Figure 1 to Figure 6As shown, this embodiment proposes a drying device for honey solidification production, including a drying cylinder 1, a rotating clamping groove 3, a wind direction adjusting mechanism, a wall cleaning mechanism, a sealing cover 4 and an air supply mechanism. A collecting cone 2 is arranged at the bottom of the drying cylinder 1, and the collecting cone 2 is connected to the external cyclone separator. There are multiple rotating clamping grooves 3, and multiple rotating clamping grooves 3 are circumferentially arranged on the side of the drying cylinder 1. There are multiple wind direction adjusting mechanisms, which correspond to the rotating clamping grooves 3 one by one. The wind direction adjusting mechanism is rotatably arranged in the rotating clamping groove 3. The wind direction adjusting mechanism is used to adjust the wind direction of the hot air sent into the drying cylinder 1. There are multiple wall cleaning mechanisms, which are rotatably arranged on the wind direction adjusting mechanism. The wall cleaning mechanism is arranged inside the drying cylinder 1. The wall cleaning mechanism is used to conveniently clean the honey stuck to the wall. The sealing cover 4 is fixedly arranged above the drying cylinder 1. The air supply mechanism is arranged on the side of the drying cylinder 1. The air supply mechanism The structure is connected with multiple wind direction adjusting mechanisms, the air supply mechanism is used to transport hot air to the wind direction adjusting mechanism, the hot air is sent into the wind direction adjusting mechanism through the air supply mechanism, the wind direction adjusting mechanism sends the hot air into the drying cylinder 1, and the blowing direction of the hot air flow can be adjusted by the wind direction adjusting mechanism. Through the simultaneous rotation of the four wind direction adjusting mechanisms, the route of the hot air flow in the drying cylinder 1 can be adjusted, and at the same time, the diameter of the hot air flow rotation is affected, thereby affecting the distance of the honey moving with the air flow from the wall cleaning mechanism. Targeted adjustments can be made according to different honeys and different additive addition ratios, thereby reducing the occurrence of wall adhesion. At the same time, the wall cleaning mechanism can prevent honey from sticking to the rotating clamping groove 3 or the inner wall of the drying cylinder 1, which is inconvenient to clean. The wall cleaning mechanism is arranged between the multiple wind direction adjusting mechanisms to prevent honey from sticking to the wall on other objects, and it is convenient to clean the honey stuck to the wall on the wall cleaning mechanism.

[0016] like Figure 3~Figure 4As shown, the rotating clamping groove 3 is composed of two arc-shaped plates arranged opposite to each other, and the wind direction adjustment mechanism runs through the rotating clamping groove 3. The wind direction adjustment mechanism includes an air supply frame 5, a rotating column 6 and a driving cylinder 7. The air supply frame 5 runs through the rotating clamping groove 3, and the rotating column 6 is fixedly arranged at the center of the air supply frame 5. The rotating column 6 is rotatably arranged in the rotating clamping groove 3. The driving cylinder 7 is rotatably arranged outside the drying cylinder 1, and the output end of the driving cylinder 7 is rotatably connected to the air supply frame 5. A plurality of air supply holes 8 are provided on one side of the air supply frame 5 extending into the drying cylinder 1, and both sides of the air supply holes 8 are rotatably connected to the wall cleaning mechanism. The rotating column 6 fits with the two arc-shaped plates of the rotating clamping groove 3, and the rotating column 6 rotates in the rotating clamping groove 3 while maintaining a seal to prevent the airflow in the drying cylinder 1 from passing through the rotating clamping groove. The slot 3 flows with the outside, and the air supply holes 8 are arranged on the air supply frame 5. When the output end of the driving cylinder 7 is extended, the air supply frame 5 can be pushed to rotate in the rotating clamping slot 3, and the air supply frame 5 rotates toward the center of the drying cylinder 1, so that the airflow blown out of the air supply hole 8 blows toward a position closer to the center of the drying cylinder 1, resulting in a smaller vortex diameter formed by the airflow, and then the flow rate of the airflow rotation can be controlled by controlling the flow rate of the hot air supplied, so that the mist honey is more difficult to move toward the wall cleaning mechanism under the action of centrifugal force to cause the wall adhesion phenomenon. According to the different viscosities of the honey, the angle of the hot air blowing and the speed of the hot air flow can be controlled to adjust the diameter and speed of the mist honey rotating in the drying cylinder 1.

[0017] like Figure 3~Figure 5As shown, the wall stain cleaning mechanism includes a rotating frame 19, a rotating frame 210, a cleaning plate 11 and a cleaning plate 212, the rotating frame 19 is rotatably connected to the air supply frame 5, the rotating frame 210 is rotatably connected to a side of the air supply frame 5 away from the rotating frame 19, the cleaning plate 11 is detachably arranged on a side of the rotating frame 19 close to the collecting cone 2, the cleaning plate 212 is detachably arranged on a side of the rotating frame 210 close to the collecting cone 2, the rotating frame 19 rotatably connected to the air supply frame 5 is rotatably connected to the rotating frame 210 on the adjacent air supply frame 5, the rotating frame 19 and the rotating frame 210 do not contact the side wall of the drying cylinder 1, the upper and lower sides of the rotating frame 19 and the rotating frame 210 are respectively in contact with the sealing cover 4 and the collecting cone 2, the rotating frame 19 and the rotating frame 210 are both arranged in an arc shape, and the rotating frame 19 and the rotating frame 210 are rotatably connected to each other. The connected rotating frame 1 9 and rotating frame 2 10 are arranged between the two air supply frames 5. When the air supply frame 5 rotates, the rotating frame 1 9 and the rotating frame 2 10 rotate with the air supply frame 5 to shield the rotating clamping groove 3 and the air supply frame 5, so that the honey stuck to the wall can contact the air supply frame 5 and the rotating clamping groove 3 as little as possible, reducing the difficulty of subsequent cleaning. At the same time, since the upper and lower sides of the rotating frame 1 9 and the rotating frame 2 10 are respectively fitted with the sealing cover body 4 and the collecting cone 2, the mist honey will not contact the inner wall of the drying cylinder 1, and it is ensured as much as possible that the honey will not contact the inner wall of the drying cylinder 1, reducing the difficulty of subsequent cleaning. At the same time, after the sealing cover 15 is removed, when the output end of the driving cylinder 7 drives the air supply frame 5 to rotate to a specified angle, the cleaning plate 1 11 and the cleaning plate 2 12 can be taken out through the cleaning port 14 for easy cleaning.

[0018] like Figure 3 and Figure 6 As shown, the sealing cover body 4 is provided with an injection pipe 13, a cleaning port 14 and a sealed cover 15. The injection pipe 13 is arranged through the center of the sealing cover body 4, and an atomizing nozzle is fixedly arranged at one end of the injection pipe 13 extending into the drying cylinder 1. There are multiple cleaning ports 14, and the multiple cleaning ports 14 are opened in a ring shape on the sealing cover body 4. The cleaning ports 14 correspond to the wall stain cleaning mechanisms one by one, and the sealed cover 15 is detachably arranged on the cleaning ports 14.

[0019] like Figure 1~Figure 2As shown, the air supply mechanism includes an air supply duct 16, a heater 17, an air supply fan 18 and an air guide duct 19. The air supply duct 16 is arranged on the side of the drying cylinder 1. A plurality of heaters 17 are arranged, and the plurality of heaters 17 are fixedly arranged on the air supply duct 16. The air outlet of the air supply fan 18 is connected to the bottom of the air supply duct 16. The air guide duct 19 is connected to the top of the air supply duct 16. A plurality of hoses 20 are connected to the air guide duct 19. The hose 20 is connected to the middle part of the air supply frame 5. The air supply fan 18 passes the outside air into the air supply duct 16. After the air is heated by the heater 17 in the air supply duct 16, it is transported to the hose 20 through the air guide duct 19. The hose 20 passes the hot air into the air supply frame 5. When the output end of the driving cylinder 7 drives the air supply frame 5 to rotate, the hose 20 moves with the air supply frame 5.

[0020] In summary, the working principle of the drying device for honey solidification production is as follows: The blower 18 introduces external air into the air supply duct 16. After the air is heated by the heater 17 in the air supply duct 16, it is transported to the hose 20 through the air guide pipe 19. The hose 20 introduces the hot air into the air supply frame 5, and the hot air is blown into the drying cylinder 1 through the air supply port. The external feeding device adds honey to the drying cylinder 1 through the injection pipe 13, and the honey is sprayed into the drying cylinder 1 in the form of mist through the atomizing nozzle. When the output end of the driving cylinder 7 drives the air supply frame 5 to rotate, the hose 20 moves with the air supply frame 5. When multiple air supply frames 5 rotate, the air flow angles blown out of multiple air supply ports rotate in the drying cylinder 1, and the air flow forms a vortex. At the same time, the rotation speed and diameter of the vortex are affected by the air flow direction and flow velocity. The rotating frame 1 9 and the rotating frame 2 10 rotate with the air supply frame 5. The cleaning plate 1 11 and the cleaning plate 2 12 can be disassembled through the cleaning port 14 to clean the honey stuck on the wall.

[0021] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drying device for honey solidification production, characterized in that: include: A drying cylinder (1), wherein a collecting cone (2) is arranged below the drying cylinder (1), and the collecting cone (2) is connected to an external cyclone separator; A rotating clamping groove (3), wherein a plurality of the rotating clamping grooves (3) are provided, and the plurality of rotating clamping grooves (3) are circumferentially opened on the side of the drying cylinder (1); A wind direction adjustment mechanism, wherein a plurality of wind direction adjustment mechanisms are provided, each of the wind direction adjustment mechanisms corresponds to the rotating clamping groove (3) on a one-to-one basis, the wind direction adjustment mechanism is rotatably arranged in the rotating clamping groove (3), and the wind direction adjustment mechanism is used to adjust the wind direction of the hot air fed into the drying cylinder (1); A wall cleaning mechanism, wherein a plurality of wall cleaning mechanisms are provided, the wall cleaning mechanisms are rotatably arranged on the wind direction adjustment mechanism, the wall cleaning mechanisms are arranged inside the drying cylinder (1), and the wall cleaning mechanisms are used to conveniently clean honey adhered to the wall; A sealing cover body (4), the sealing cover body (4) being fixedly arranged above the drying cylinder (1); An air supply mechanism, the air supply mechanism is arranged on the side of the drying cylinder (1), the air supply mechanism is connected to the plurality of wind direction adjustment mechanisms, and the air supply mechanism is used to supply hot air to the wind direction adjustment mechanisms.

2. A drying device for honey solidification production according to claim 1, characterized in that: The rotating clamping groove (3) is composed of two arc-shaped plates arranged opposite to each other, and the wind direction adjustment mechanism passes through the rotating clamping groove (3).

3. A drying device for honey solidification production according to claim 2, characterized in that: The wind direction adjustment mechanism comprises: An air supply frame (5), the air supply frame (5) passing through the rotating clamping groove (3); A rotating column (6), the rotating column (6) being fixedly arranged at the center of the air supply frame (5), and the rotating column (6) being rotatably arranged in the rotating clamping groove (3); A driving cylinder (7), the driving cylinder (7) being rotatably arranged outside the drying cylinder (1), and the output end of the driving cylinder (7) being rotatably connected to the air supply frame (5).

4. A drying device for honey solidification production according to claim 3, characterized in that: A plurality of air supply holes (8) are provided on one side of the air supply frame (5) extending into the drying cylinder (1), and both sides of the air supply hole (8) are rotatably connected to the wall stain cleaning mechanism.

5. A drying device for honey solidification production according to claim 4, characterized in that: The wall cleaning mechanism comprises: A rotating frame (9), wherein the rotating frame (9) is rotatably connected to the air supply frame (5); A second rotating frame (10), the second rotating frame (10) being rotatably connected to a side of the air supply frame (5) away from the first rotating frame (9); a cleaning plate 1 (11), the cleaning plate 1 (11) being detachably arranged on a side of the rotating frame 1 (9) close to the collecting cone (2); A second cleaning plate (12), wherein the second cleaning plate (12) is detachably arranged on a side of the second rotating frame (10) close to the collecting cone (2).

6. A drying device for honey solidification production according to claim 5, characterized in that: The rotating frame 1 (9) rotatably connected to the air supply frame (5) is rotatably connected to the rotating frame 2 (10) on the adjacent air supply frame (5), and the rotating frame 1 (9) and the rotating frame 2 (10) do not contact the side wall of the drying cylinder (1).

7. A drying device for honey solidification production according to claim 6, characterized in that: The sealing cover (4) is provided with: An injection pipe (13), the injection pipe (13) being arranged through the center of the sealing cover body (4), and an atomizing nozzle being fixedly arranged on one end of the injection pipe (13) extending into the drying cylinder (1); A cleaning port (14), wherein a plurality of the cleaning ports (14) are provided, and the plurality of cleaning ports (14) are opened in a ring shape on the sealing cover body (4), and the cleaning ports (14) correspond one to one with the wall stain cleaning mechanisms; A sealed cover (15), wherein the sealed cover (15) is detachably arranged on the cleaning opening (14).

8. A drying device for honey solidification production according to claim 7, characterized in that: The air supply mechanism comprises: An air supply duct (16), the air supply duct (16) being arranged on the side of the drying cylinder (1); a heater (17), wherein a plurality of the heaters (17) are provided, and the plurality of the heaters (17) are fixedly arranged on the air supply duct (16); An air blower (18), the air outlet of the air blower (18) being in communication with the bottom of the air supply duct (16); An air guide pipe (19), wherein the air guide pipe (19) is connected to the top of the air supply pipe (16).

9. A drying device for honey solidification production according to claim 8, characterized in that: A plurality of hoses (20) are connected to the air guide pipe (19), and the hoses (20) are in communication with the middle portion of the air supply frame (5).

10. A drying device for honey solidification production according to claim 9, characterized in that: The upper and lower sides of the rotating frame 1 (9) and the rotating frame 2 (10) are in contact with the sealing cover body (4) and the collecting cone (2) respectively.

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