CN214746771U

CN214746771U - Fluidized drying device of ethyl maltol convenient to maintain

Info

Publication number: CN214746771U
Application number: CN202120187272.2U
Authority: CN
Inventors: 郭伟; 郭鹏
Original assignee: Shaanxi Silk Road Pengyuan Biotechnology Co ltd
Current assignee: Shaanxi Silk Road Pengyuan Biotechnology Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-11-16
Anticipated expiration: 2031-01-22

Abstract

The utility model provides a fluidized drying device of ethyl maltol convenient to maintain, which comprises a vulcanization drying shell, supporting legs, a discharge plate, a rectangular sleeve, a baffle plate, a movable bolt, a control panel, a vibration motor, a fluidized bed body, a U-shaped lining seat, a vibration spring, a dust guide net, an anti-blocking stirring type impurity filtering and collecting hopper structure, a hot air flow guide drying row structure and a dustproof collecting and cleaning box structure, wherein the four corners of the bottom of the vulcanization drying shell are all connected with the supporting legs through bolts; and an outlet at the middle lower part of the right side of the vulcanization drying shell is connected with a discharging plate through a bolt. The utility model has the advantages that the arrangement of the feed hopper, the anti-blocking motor, the auger, the impurity filtering net frame, the impurity guide pipe and the impurity collecting tank is favorable for anti-blocking impurity filtering and ensures the fluidized drying effect; the heat conduction pipe, the heat spraying exhaust, the hot air box, the drying hot plate, the air blower and the drying nozzle are arranged, so that drying is facilitated, and the fluidized drying efficiency is improved.

Description

Fluidized drying device of ethyl maltol convenient to maintain

Technical Field

The utility model belongs to the technical field of maltol production, especially, relate to an ethyl maltol's fluidized drying device convenient to maintain.

Background

The ethyl maltol is a commonly used flavoring agent, has sweet flavor, is widely applied to the chemical fields of daily chemicals, beverages, foods, medicines, cigarettes and the like, and needs to be sent to a drying section for drying and collection after the ethyl maltol is finished in the production process.

After the drying in the current technical means, the dry hot air still contains tiny ethyl maltol, the hot air is discharged, not only can cause waste but also can cause certain pollution to the air, and the ethyl maltol after the drying is finished is collected by people and needs to be screened according to the size of particles, the problems can cause the waste of the ethyl maltol, the air pollution can increase the labor load, the enterprise cost is improved, and the like, so the fluidized drying device is applied.

However, the existing fluidized drying device also has the problems that impurities in the ethyl maltol material cannot be filtered, the fluidized drying effect is poor, dust is easy to raise, and the environment is polluted.

Therefore, it is necessary to develop a conveniently maintained fluidized drying device for ethyl maltol.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an ethyl maltol's fluidized drying device convenient to maintain to there is the impurity in the unable filtration ethyl maltol material in solving current fluidized drying device, the fluidized drying effect is poor and the problem of easy raise dust polluted environment. A fluidized drying device of ethyl maltol convenient to maintain comprises a vulcanization drying shell, supporting legs, a discharging plate, a rectangular sleeve, a baffle plate, movable bolts, a control panel, a vibration motor, a fluidized bed body, a U-shaped lining seat, a vibration spring, a dust guide net, an anti-blocking stirring type impurity filtering and collecting hopper structure, a hot air flow guide drying row structure and a dustproof collecting and cleaning box structure, wherein the four corners of the bottom of the vulcanization drying shell are all connected with the supporting legs through bolts; the outlet of the middle lower part of the right side of the vulcanization drying shell is connected with a discharging plate through a bolt; the right upper end of the vulcanization drying shell is connected with a rectangular sleeve through a bolt; the material baffle is inserted in the rectangular sleeve and is fastened and connected through a movable bolt; the left lower side of the vulcanization drying shell is connected with a control panel through a bolt; the vibration motor is connected to the left side of the lower part of the fluidized bed body through a bolt; one end of the fluidized bed body is connected inside the U-shaped lining seat in a shaft mode, and the other end of the fluidized bed body is connected with the right end of the vibrating spring through a bolt; the U-shaped liner seat is connected to the middle part of the right wall of the inner side of the vulcanization drying shell through a bolt; the left end of the vibration spring is connected to the middle upper side of the inner side left wall of the vulcanization drying shell through a bolt; the dust guide net is connected with an outlet at the middle part inside the fluidized bed body through a bolt; the anti-blocking stirring type impurity filtering and collecting hopper structure and the hot air flow guide drying row structure are both connected with the vulcanization drying shell; the dust-proof collecting and cleaning box structure is connected with the vulcanization drying shell; the anti-blocking stirring type impurity filtering and collecting hopper structure comprises a feeding hopper, an anti-blocking motor, a packing auger, an impurity filtering net frame, an impurity guide pipe and an impurity collecting tank, wherein the anti-blocking motor is connected with the middle part of the upper part of the feeding hopper through a bolt; the output shaft of the anti-blocking motor penetrates through the middle part of the upper wall of the feed hopper and is connected with the upper end of the packing auger through a coupler; the outlet of the lower part of the feed hopper is connected with a sundry filtering net frame through a bolt; one end of the impurity guide pipe is in threaded connection with the upper end of the impurity collecting tank, and the other end of the impurity guide pipe is in threaded connection with the lower portion of the impurity filtering net frame.

Preferably, the hot air diversion drying row structure comprises a heat conduction pipe, a heat spraying row, a hot air box, a drying hot plate, an air blower and a drying nozzle, wherein one end of the heat conduction pipe is in threaded connection with an inlet at the upper part of the heat spraying row, and the other end of the heat conduction pipe is in threaded connection with an outlet at the right end of the hot air box; the interior of the hot air box is sequentially connected with drying hot plates at equal intervals from left to right through screws; the blower is connected to the inlet of the left end of the hot air box through a bolt; the drying nozzle is sequentially in threaded connection with an outlet at the lower part of the heat spraying row from left to right.

Preferably, the dustproof collection and cleaning box structure comprises a metal hose, a dust collecting pipe, a dust collecting box, a dust suction block, a cleaning bottom plate, a suction pump and an exhaust pipe, wherein one end of the metal hose is in threaded connection with the lower end of the dust collecting pipe, and the other end of the metal hose is in threaded connection with an inlet at the upper part of the dust collecting box; a dust absorption block is arranged in the dust collection box; a cleaning bottom plate is arranged at an outlet at the bottom of the dust collection box; the air suction pump is connected with an outlet at the middle part of the right side of the dust collection box through a bolt; the outlet of the air suction pump and the inlet of the exhaust pipe are in threaded connection.

Preferably, the outlet at the right end of the feed hopper is in bolted connection with the inlet at the left upper side of the vulcanizing drying shell.

Preferably, the hot air box is connected to the left side of the upper part of the vulcanization drying shell through bolts.

Preferably, the transverse bolt of the heat spraying row is connected to the middle part of the top of the inner side of the vulcanizing drying shell.

Preferably, the lower end of the heat conducting pipe penetrates through the top of the inner side of the vulcanization drying shell.

Preferably, the dust collecting pipe is in threaded connection with the middle part of the lower part of the fluidized bed body and is communicated with a dust guide net, and the dust guide net adopts a stainless steel filter screen.

Preferably, the dust collection box is connected to the middle part of the inner bottom of the vulcanizing and drying shell through a bolt.

Preferably, the cleaning bottom plate is connected with an outlet at the bottom of the vulcanizing drying shell through a bolt.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, the feeder hopper, prevent stifled motor, the auger, strain miscellaneous net frame, lead the setting of miscellaneous pipe and collection miscellaneous jar, be favorable to preventing stifled filtration impurity, guarantee the fluidized drying effect.

2. The utility model discloses in, the heat pipe, spout the heat row, hot-blast case, dry hot plate, the setting of air-blower and dry mouth is favorable to drying, improves fluidized drying efficiency.

3. In the utility model, the arrangement of the metal hose, the dust collecting pipe, the dust collecting box, the dust absorption block, the cleaning bottom plate, the air suction pump and the exhaust pipe is favorable for collecting dust and avoiding the dust flying,

the treatment effect is guaranteed, and the device is detachable and convenient to maintain.

4. The utility model discloses in, the setting of vulcanization drying casing and supporting leg, be favorable to guaranteeing support stability.

5. The utility model discloses in, the setting of play flitch, be favorable to the ejection of compact, the operation of being convenient for.

6. The utility model discloses in, rectangle sleeve pipe, striker plate and movable bolt's setting, be favorable to arranging the material, convenient operation to can dismantle, convenient maintenance.

7. The utility model discloses in, lead the setting of dirt net, be favorable to leading the dirt, avoid the dust to fly upward.

8. The utility model discloses in, control panel, vibrating motor, the fluidization bed body, U type liner seat and vibrating spring's setting are favorable to guaranteeing fluidization efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the structure schematic diagram of the anti-blocking stirring type impurity filtering and collecting bucket structure of the utility model.

Fig. 3 is a schematic structural diagram of the hot air flow guiding drying row structure of the present invention.

Fig. 4 is a schematic structural view of the structure of the dust-proof collecting and cleaning box of the present invention.

In the figure:

1. vulcanizing and drying the shell; 2. supporting legs; 3. a discharge plate; 4. a rectangular sleeve; 5. a striker plate; 6. a movable bolt; 7. a control panel; 8. a vibration motor; 9. a fluidized bed body; 10. a U-shaped lining seat; 11. a vibration spring; 12. a dust guiding net; 131. a feed hopper; 132. an anti-blocking motor; 133. a packing auger; 134. a trash filtering screen frame; 135. a trash guide pipe; 136. a trash can; 13. an anti-blocking stirring type impurity filtering and collecting hopper structure; 131. a feed hopper; 132. an anti-blocking motor; 133. a packing auger; 134. a trash filtering screen frame; 135. a trash guide pipe; 136. a trash can; 14. a hot air diversion drying row structure; 141. a heat conducting pipe; 142. spraying heat rows; 143. a hot air box; 144. drying the hot plate; 145. a blower; 146. a drying nozzle; 15. a dust-proof collecting and cleaning box structure; 151. a metal hose; 152. a dust collecting pipe; 153. a dust collection box; 154. a dust absorption block; 155. cleaning the bottom plate; 156. a getter pump; 157. and (4) exhausting the gas.

Detailed Description

The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, a fluidized drying device of ethyl maltol convenient for maintenance comprises a vulcanization drying shell 1, supporting legs 2, a discharging plate 3, a rectangular sleeve 4, a baffle plate 5, a movable bolt 6, a control panel 7, a vibrating motor 8, a fluidized bed body 9, a U-shaped liner 10, a vibrating spring 11, a dust guiding net 12, an anti-blocking stirring type impurity filtering and collecting hopper structure 13, a hot air flow guiding and drying row structure 14 and a dustproof collecting and cleaning box structure 15, wherein the supporting legs 2 are connected with the four corners of the bottom of the vulcanization drying shell 1 through bolts; the outlet of the middle lower part of the right side of the vulcanization drying shell 1 is connected with a discharging plate 3 through a bolt; the right upper end of the vulcanization drying shell 1 is connected with a rectangular sleeve 4 through a bolt; a striker plate 5 is inserted into the rectangular sleeve 4 and is fastened and connected through a movable bolt 6; the left lower side of the vulcanization drying shell 1 is connected with a control panel 7 through a bolt; the vibration motor 8 is connected to the left side of the lower part of the fluidized bed body 9 through a bolt; one end of the fluidized bed body 9 is connected with the inside of the U-shaped liner seat 10 in a shaft mode, and the other end of the fluidized bed body is connected with the right end of the vibration spring 11 through a bolt; the U-shaped lining seat 10 is connected with the middle part of the right wall of the inner side of the vulcanization drying shell 1 through a bolt; the left end of the vibration spring 11 is connected with the middle upper side of the inner left wall of the vulcanization drying shell 1 through a bolt; the dust guide net 12 is connected with an outlet at the middle part inside the fluidized bed body 9 through bolts; the anti-blocking stirring type impurity filtering and collecting hopper structure 13 and the hot air flow guiding and drying row structure 14 are both connected with the vulcanization drying shell 1; the dustproof collecting and cleaning box structure 15 is connected with the vulcanization drying shell 1; the anti-blocking stirring type impurity filtering and collecting hopper structure 13 comprises a hopper 131, an anti-blocking motor 132, an auger 133, an impurity filtering net frame 134, an impurity guide pipe 135 and an impurity collecting tank 136, wherein the anti-blocking motor 132 is connected to the middle part of the upper part of the hopper 131 through a bolt; an output shaft of the anti-blocking motor 132 penetrates through the middle part of the upper wall of the feed hopper 131 and is connected with the upper end of the packing auger 133 through a coupler; the lower outlet of the feed hopper 131 is connected with a impurity filtering net frame 134 by bolts; lead miscellaneous pipe 135 one end and the upper end threaded connection setting of collection miscellaneous jar 136, the other end and strain miscellaneous net frame 134 lower part threaded connection setting, pour ethyl maltol material into inside feeder hopper 131 to it is rotatory to drive auger 133 through anti-blocking motor 132, can stir ethyl maltol material and mix, filter the dust through straining miscellaneous net frame 134 simultaneously, accessible leads miscellaneous pipe 135 and pours the dust into collection miscellaneous jar 136 inside, in order to guarantee ethyl maltol material's cleanness, and then guarantee fluidized drying efficiency.

In this embodiment, referring to fig. 3, the hot air guiding drying row structure 14 includes a heat pipe 141, a heat spraying row 142, a hot air box 143, a drying hot plate 144, a blower 145 and a drying nozzle 146, wherein one end of the heat pipe 141 is connected to an inlet at the upper portion of the heat spraying row 142 by a screw thread, and the other end is connected to an outlet at the right end of the hot air box 143 by a screw thread; a drying hot plate 144 is connected to the interior of the hot air box 143 at equal intervals from left to right; the blower 145 is bolted at the inlet of the left end of the hot air box 143; the drying nozzle 146 is sequentially connected to the lower outlet of the heat spray row 142 in a threaded manner from left to right, the ethyl maltol material enters the upper part of the fluidized bed body 9 for fluidization operation, hot air heated by the drying hot plate 144 in the hot air box 143 is led out through the heat conduction pipe 141, the hot air can be blown out through the drying nozzle 146 through the heat spray row 142, drying operation can be performed, drying efficiency is guaranteed through the air blower 145, and air volume is increased.

In this embodiment, referring to fig. 4, the dust-proof collecting and cleaning box structure 15 includes a metal hose 151, a dust collecting pipe 152, a dust collecting box 153, a dust collecting block 154, a cleaning bottom plate 155, a suction pump 156 and an exhaust pipe 157, wherein one end of the metal hose 151 is screwed to the lower end of the dust collecting pipe 152, and the other end is screwed to the upper inlet of the dust collecting box 153; a dust suction block 154 is arranged in the dust collection box 153; a cleaning bottom plate 155 is arranged at the outlet at the bottom of the dust collection box 153; the air suction pump 156 is connected with the outlet of the middle part of the right side of the dust box 153 through bolts; the outlet of the suction pump 156 and the inlet of the exhaust pipe 157 are connected by screw threads, dust generated in fluidized drying can be collected by the dust collecting pipe 152, and is guided into the dust collecting box 153 through the metal hose 151, and is adsorbed and stored by the dust adsorbing block 154, and the exhaust efficiency is ensured by the suction pump 156 and the exhaust pipe 157, and then the dust adsorption capacity is ensured.

In this embodiment, specifically, the inlet of the left upper side of the vulcanizing drying shell 1 is connected with the outlet of the right end of the feed hopper 131 through a bolt.

In this embodiment, specifically, the hot air box 143 is bolted to the left side of the upper part of the vulcanization drying casing 1.

In this embodiment, specifically, the heat spray bar 142 is horizontally bolted to the middle of the top of the inside of the vulcanizing drying casing 1.

In this embodiment, specifically, the lower end of the heat pipe 141 penetrates through the top of the inside of the vulcanization drying casing 1.

In this embodiment, specifically, the dust collecting pipe 152 is screwed to the middle of the lower portion of the fluidized bed body 9 and is communicated with the dust guiding net 12, and the dust guiding net 12 is a stainless steel filter screen.

In this embodiment, the dust box 153 is bolted to the middle of the bottom inside the vulcanization drying casing 1.

In this embodiment, specifically, the cleaning bottom plate 155 is bolted to the outlet at the bottom of the vulcanizing drying casing 1.

In this embodiment, specifically, the exhaust pipe 157 penetrates the bottom of the vulcanization drying casing 1.

In this embodiment, the dust suction block 154 is a sponge block or an activated carbon block, and is screwed to the cleaning bottom plate 155.

In this embodiment, the trash filter frame 134 is a stainless steel frame.

In this embodiment, the trash can 136 is a transparent PVC plastic can.

In this embodiment, specifically, the drying nozzle 146 is a plurality of aluminum alloy columnar nozzles.

In this embodiment, specifically, the vibration motor 8, the anti-blocking motor 132, the drying hot plate 144, the blower 145 and the suction pump 156 are all connected to the control panel 7 by wires.

In this embodiment, specifically, the vibration motor 8 is an RK-370 type vibration motor.

In this embodiment, specifically, the anti-blocking motor 132 is a 775 type motor.

In this embodiment, specifically, the drying hot plate 144 is a PTC hollow heating plate.

In this embodiment, specifically, the blower 145 is a 24V small blower.

In this embodiment, the getter pump 156 is a 24V small-sized getter pump.

Principle of operation

In the utility model, the ethyl maltol is poured into the feed hopper 131, the auger 133 is driven to rotate by the anti-blocking motor 132, the ethyl maltol can be stirred and mixed, meanwhile, the dust is filtered by the filtering net frame 134, the dust can be poured into the impurity collecting tank 136 by the impurity guiding pipe 135, so as to ensure the cleanness of the ethyl maltol, further ensure the fluidized drying efficiency, the ethyl maltol enters the upper part of the fluidized bed body 9 to be fluidized, the hot air heated by the drying hot plate 144 in the hot air box 143 is led out by the heat conducting pipe 141, the hot air can be blown out by the drying nozzle 146 through the heat spraying exhaust 142, the drying operation can be carried out, the drying efficiency is ensured by the air blower 145, the air quantity is increased, the dust can be generated in the fluidized drying, the dust can be collected by the dust collecting pipe 152, and is guided into the dust collecting box 153 by the metal hose 151, the dust is adsorbed and stored by the dust absorbing block 154, the exhaust efficiency is ensured by the suction pump 156 and the exhaust pipe 157, and the dust adsorption amount is ensured.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims

1. The fluidized drying device of the ethyl maltol convenient to maintain is characterized by comprising a vulcanization drying shell (1), supporting legs (2), a discharge plate (3), a rectangular sleeve (4), a baffle plate (5), movable bolts (6), a control panel (7), a vibrating motor (8), a fluidized bed body (9), a U-shaped lining seat (10), a vibrating spring (11), a dust guide net (12), an anti-blocking stirring type impurity filtering and collecting hopper structure (13), a hot air flow guide drying row structure (14) and a dustproof collecting and cleaning box structure (15), wherein the four corners of the bottom of the vulcanization drying shell (1) are all connected with the supporting legs (2) through bolts; the outlet of the middle lower part of the right side of the vulcanization drying shell (1) is connected with a discharging plate (3) through a bolt; the right upper end of the vulcanization drying shell (1) is connected with a rectangular sleeve (4) through a bolt; a material baffle plate (5) is inserted into the rectangular sleeve (4) and is fixedly connected through a movable bolt (6); the left lower side of the vulcanization drying shell (1) is connected with a control panel (7) through a bolt; the vibration motor (8) is connected to the left side of the lower part of the fluidized bed body (9) through a bolt; one end of the fluidized bed body (9) is coupled inside the U-shaped lining seat (10) in a shaft mode, and the other end of the fluidized bed body is connected with the right end of the vibration spring (11) through a bolt; the U-shaped lining seat (10) is connected to the middle part of the right wall of the inner side of the vulcanizing drying shell (1) through bolts; the left end of the vibration spring (11) is connected to the middle upper side of the inner left wall of the vulcanization drying shell (1) through a bolt; the dust guide net (12) is connected with an outlet at the middle part inside the fluidized bed body (9) through bolts; the anti-blocking stirring type impurity filtering and collecting hopper structure (13) and the hot air flow guiding and drying row structure (14) are both connected with the vulcanization drying shell (1); the dustproof collecting and cleaning box structure (15) is connected with the vulcanization drying shell (1); the anti-blocking stirring type impurity filtering and collecting hopper structure (13) comprises a hopper (131), an anti-blocking motor (132), an auger (133), an impurity filtering net frame (134), an impurity guide pipe (135) and an impurity collecting tank (136), wherein the anti-blocking motor (132) is connected to the middle part of the upper part of the hopper (131) through a bolt; an output shaft of the anti-blocking motor (132) penetrates through the middle part of the upper wall of the feed hopper (131) and is connected with the upper end of the packing auger (133) through a coupler; an outlet at the lower part of the feed hopper (131) is connected with a sundry filtering net frame (134) through bolts; one end of the impurity guide pipe (135) is in threaded connection with the upper end of the impurity collecting tank (136), and the other end of the impurity guide pipe is in threaded connection with the lower part of the impurity filtering net frame (134).

2. The fluidized drying device for ethyl maltol convenient for maintenance according to claim 1, wherein the hot air guide drying row structure (14) comprises a heat pipe (141), a heat spraying row (142), a hot air box (143), a drying hot plate (144), a blower (145) and a drying nozzle (146), one end of the heat pipe (141) is in threaded connection with an inlet at the upper part of the heat spraying row (142), and the other end of the heat pipe is in threaded connection with an outlet at the right end of the hot air box (143); a drying hot plate (144) is connected to the interior of the hot air box (143) in sequence from left to right at equal intervals by screws; the blower (145) is connected to the inlet of the left end of the hot air box (143) through a bolt; the drying nozzle (146) is sequentially connected with the lower outlet of the heat spraying row (142) in a threaded manner from left to right.

3. The easy-to-maintain fluidized drying device for ethyl maltol as in claim 1, wherein the dust-proof collecting and cleaning box structure (15) comprises a metal hose (151), a dust collecting pipe (152), a dust collecting box (153), a dust suction block (154), a cleaning bottom plate (155), a suction pump (156) and an exhaust pipe (157), one end of the metal hose (151) is connected with the lower end of the dust collecting pipe (152) in a threaded manner, and the other end of the metal hose is connected with the upper inlet of the dust collecting box (153) in a threaded manner; a dust absorption block (154) is arranged in the dust collection box (153); a cleaning bottom plate (155) is arranged at an outlet at the bottom of the dust collection box (153); the air suction pump (156) is connected with the outlet of the middle part of the right side of the dust collection box (153) through a bolt; the outlet of the suction pump (156) is connected with the inlet of the exhaust pipe (157) by screw thread.

4. The fluidized drying device for ethyl maltol convenient for maintenance as claimed in claim 1, wherein the outlet at the right end of the feed hopper (131) is bolted to the inlet at the upper left side of the vulcanization drying casing (1).

5. The fluidized drying apparatus for ethyl maltol convenient for maintenance as set forth in claim 2, wherein the hot air box (143) is bolted to the left side of the upper portion of the vulcanization drying casing (1).

6. The fluidized drying device for ethyl maltol convenient for maintenance as set forth in claim 2, wherein the heat jet bank (142) is laterally bolted to the inside of the fluidized drying casing (1) at the top middle portion thereof.

7. The fluidized drying device for ethyl maltol convenient for maintenance as set forth in claim 2, wherein the lower end of the heat pipe (141) penetrates the inside top of the vulcanization drying casing (1).

8. The fluidized drying device for ethyl maltol convenient for maintenance as claimed in claim 3, wherein the dust collecting pipe (152) is screwed in the middle of the lower part of the fluidized bed body (9) and is communicated with the dust guiding net (12), and the dust guiding net (12) adopts a stainless steel filter screen.

9. The fluidized drying device for ethyl maltol convenient for maintenance as set forth in claim 3, wherein the dust box (153) is bolted to the middle portion of the bottom inside the vulcanizing drying casing (1).

10. The fluidized drying device for ethyl maltol convenient for maintenance according to claim 3, wherein the cleaning floor (155) is bolted to the outlet at the bottom of the vulcanization drying casing (1).