CN214469944U

CN214469944U - Multi-functional powder screening machine powder drying device

Info

Publication number: CN214469944U
Application number: CN202022909112.2U
Authority: CN
Inventors: 王其胜; 罗红利; 马彩霞
Original assignee: Henan Zhongjie Pharmaceutical Co ltd
Current assignee: Henan Zhongjie Pharmaceutical Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-10-22
Anticipated expiration: 2030-12-08

Abstract

The utility model provides a multifunctional powder drying device of a powder sieving machine, which comprises an installation frame, a bottom installation plate, a shock absorption frame structure, supporting legs, a discharge hopper, a powder screening frame structure, a discharge pipe, a vibration motor, a feeding and drying frame structure, a heat insulation seal box, an electric heating pipe, a connecting pipeline, a gas outlet pipeline, a fan, a connecting cover and a circulating pipeline, wherein the bottom installation plate is connected with the lower part of the installation frame through bolts; the shock absorption frame structures are respectively arranged at the four corners of the lower part of the bottom mounting plate; the supporting legs are arranged at the lower part of the shock absorption frame structure. The utility model has the advantages that: through the setting of shock attenuation pipe, shock-absorbing rod, damping spring and otic placode, be favorable to through the shock-absorbing structure of two sets of cross arrangement, improve the device's shock attenuation effect, both can play horizontal shock attenuation, can also play vertical shock attenuation, and then more stable when making the device use.

Description

Multi-functional powder screening machine powder drying device

Technical Field

The utility model belongs to the technical field of pharmaceutical equipment, especially, relate to a multi-functional powder shifter powder drying device.

Background

The medicine will need to screen powdered medicine usually when producing, will pass qualified material and unqualified material separately to guarantee the qualification rate of medicine when the preparation, in the screening, need dry powdered medicine, thereby guarantee the subsequent normal processing of medicine.

However, the powder drying device of the existing powder screening machine also has the problems that the vibration absorption enables the powder to play a vibration absorption role only in a single direction, and the powder can be caked after being stored for a long time to influence the screening and is inconvenient to clean the filter screen.

Therefore, the invention discloses a multifunctional powder drying device of a powder sieving machine, which is very necessary.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a multi-functional powder drying device of powder shifter to solve current powder drying device shock attenuation messenger and can only the folk prescription to play cushioning effect, powder and can appear caking after depositing for a long time and influence the screening and inconvenient problem of clearing up the filter screen.

A multifunctional powder drying device of a powder screening machine comprises a mounting frame, a bottom mounting plate, a damping frame structure, supporting legs, a discharge hopper, a powder screening frame structure, a discharge pipe, a vibration motor, a feeding and drying frame structure, a heat insulation sealing box, an electric heating pipe, a connecting pipeline, a gas outlet pipeline, a fan, a connecting cover and a circulating pipeline, wherein the bottom mounting plate is connected to the lower part of the mounting frame through bolts; the shock absorption frame structures are respectively arranged at the four corners of the lower part of the bottom mounting plate; the supporting legs are arranged at the lower part of the shock absorption frame structure; the discharge hopper is welded in the middle of the inner side of the bottom mounting plate; the powder screening frame structure is arranged on the inner side of the mounting frame; the discharge pipe is embedded at the lower part of the discharge hopper; the vibration motor is connected to the left side of the lower part of the discharge hopper through a bolt; the feeding drying frame structure is arranged on the left side of the upper part of the mounting frame; the heat insulation sealing box is connected to the right side of the upper part of the mounting frame through bolts; the electric heating pipe is connected to the inner side of the heat insulation sealing box through screws; the connecting pipeline is connected to the lower part of the left side of the heat insulation sealing box through a bolt; the air outlet pipeline is welded at the lower part of the heat insulation sealing box; the fan is connected to the right side of the heat insulation seal box through bolts; the connecting cover is connected to the right side of the fan through screws; one end of the circulating pipeline is connected with the right bolt of the mounting frame, and the other end of the circulating pipeline is connected with the right bolt of the connecting cover; the damping frame structure comprises a mounting sleeve, a bottom plate, a reinforcing plate, a damping pipe, a damping rod, a damping spring, a top plate and an ear plate, wherein the bottom plate is welded at the upper part of the mounting sleeve; the reinforcing plate is welded at the included angle of the mounting sleeve and the bottom plate; the shock absorption pipe is arranged at the upper part of the bottom plate; the damping rod is inserted at the upper part of the inner side of the damping pipe; the damping spring is sleeved on the upper part of the outer side of the damping rod; the top plate is arranged at the upper part of the shock absorption rod; the ear plates are respectively connected to the lower part of the shock absorption pipe and the upper part of the shock absorption rod in a shaft mode.

Preferably, the feeding drying frame structure comprises a feeding hopper, a dustproof cover, a separation grid, an air inlet pipeline, a conical hollow cover and an air outlet net, wherein the dustproof cover is connected to the upper part of the feeding hopper in a closed manner; the separation grating screw is connected to the upper part of the inner side of the feed hopper; the air inlet pipeline is embedded in the lower part of the inner side of the feed hopper; the conical hollow cover is in threaded connection with the left side of the upper part of the air inlet pipeline; the air outlet nets are respectively embedded at the front end and the rear end of the conical hollow cover.

Preferably, the powder screening frame structure comprises a side plate, a powder screening net, a support rod, a positioning pipe, a material guide plate and a bolt plate, wherein the powder screening net is welded at the lower part of the inner side of the side plate; the supporting rods are respectively welded at the left side and the right side of the side plate; the positioning pipe is sleeved at the lower part of the outer side of the supporting rod; the material guide plate is connected to the upper part of the support rod through bolts; and the bolt plate is welded on one side of the material guide plate, which is far away from the side plate.

Preferably, the damping tube, the damping rod and the damping spring are respectively provided with a plurality of damping springs, and the damping tube, the damping rod and the damping spring are respectively arranged between the bottom plate and the top plate in a crossed manner.

Preferably, the ear plates are welded to the left and right sides of the upper portion of the bottom plate and the left and right sides of the lower portion of the top plate, respectively, and the ear plate on the right side is disposed at the front end of the ear plate on the left side.

Preferably, the upper part of the top plate is in bolted connection with four corners of the lower part of the bottom mounting plate, the mounting sleeve is sleeved on the upper part of the outer side of the supporting leg, and bolts are arranged at the joint.

Preferably, the feed hopper is welded at the left side of the upper part of the mounting frame, the inner side of the feed hopper is communicated with the inner side of the mounting frame, and the separation grating is arranged at the upper part of the conical hollow cover.

Preferably, the right side of the separation grille is arranged in a downward inclined mode, and the lower portion of the right side of the air inlet pipeline is connected with a left side flange of the connecting pipeline.

Preferably, the positioning pipes are respectively arranged on the left side and the right side of the upper part of the discharge hopper, the lower part of the positioning pipes is welded with the bottom mounting plate, and the bolt plates are respectively connected to the left side and the right side of the inner part of the mounting frame through bolts.

Preferably, the middle position of the powder sieving net is arranged in a downward inclination mode, and the lower portion of the powder sieving net is arranged at the upper portion of the inner side of the discharging hopper.

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

1. the utility model discloses in, the setting of shock attenuation pipe, shock attenuation pole, damping spring and otic placode, be favorable to through the shock-absorbing structure of two sets of cross arrangement, improve the device's shock attenuation effect, both can play horizontal shock attenuation, can also play vertical shock attenuation, and then more stable when making the device use.

2. The utility model discloses in, the setting of installation sleeve pipe, bottom plate and roof be favorable to making things convenient for the staff to pull down the shock mount structure is whole from between bottom mounting panel and the supporting leg to the convenience is maintained and is changed the inboard part of shock mount structure, and then reduces the device's cost of maintenance.

3. The utility model discloses in, the setting of gusset plate, be favorable to consolidating the junction of installation sleeve pipe and bottom plate, prevent that the damage from appearing in the junction of long-time back installation sleeve pipe and bottom plate of using, and then prolong the holistic life of shock attenuation frame structure.

4. The utility model discloses in, the setting of shield and separation grid, be favorable to screening in advance the material of caking, the material that prevents the caking influences the device's screening effect, through the extrusion between shield and the separation grid, can be with the material crushing of caking, and then increase the device's service function simultaneously.

5. The utility model discloses in, the setting of admission line, the hollow cover of toper and air outlet net, be favorable to drying in advance to the material that falls, guarantee that the material is dried evenly to improve the device and to the stoving effect of material.

6. The utility model discloses in, the setting of bracing piece, registration arm and bolt board, be favorable to making things convenient for the staff to install and dismantle curb plate and sieve powder net, bracing piece and registration arm support curb plate and sieve powder net respectively simultaneously, prolong the life of curb plate and sieve powder net.

7. The utility model discloses in, the setting of stock guide, be favorable to leading the material, make the material directly fall the inboard intermediate position of sieve powder net after falling, prevent that the material from directly falling out the hopper from the installing frame to guarantee the sieve powder effect of the device to the material.

8. The utility model discloses in, fan, connecting cover and circulating line's setting, be favorable to recycling the inboard hot-air of installing frame, both can improve stoving temperature and speed fast, the effect of energy saving simultaneously plays energy-concerving and environment-protective.

Drawings

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

Fig. 2 is a schematic structural diagram of the shock-absorbing mount structure of the present invention.

Fig. 3 is a schematic structural diagram of the feeding drying rack structure of the present invention.

Fig. 4 is a schematic structural diagram of the powder screening frame structure of the present invention.

In the figure:

1. installing a frame; 2. a bottom mounting plate; 3. a shock-absorbing mount structure; 31. installing a sleeve; 32. a base plate; 33. a reinforcing plate; 34. a shock absorbing tube; 35. a shock-absorbing lever; 36. a damping spring; 37. a top plate; 38. an ear plate; 4. supporting legs; 5. a discharge hopper; 6. a powder screening frame structure; 61. a side plate; 62. screening a powder net; 63. a support bar; 64. a positioning tube; 65. a material guide plate; 66. a bolt plate; 7. a discharge pipe; 8. a vibration motor; 9. a feeding drying rack structure; 91. a feed hopper; 92. a dust cover; 93. separating the grating; 94. an air intake duct; 95. a conical hollow housing; 96. an air outlet net; 10. a heat-insulating seal box; 11. an electric heating tube; 12. connecting a pipeline; 13. an air outlet pipe; 14. a fan; 15. a connecting cover; 16. a circulation pipeline.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

example (b):

as shown in fig. 1 and fig. 2, a multifunctional powder drying device of a powder sieving machine comprises a mounting frame 1, a bottom mounting plate 2, a shock absorption frame structure 3, supporting legs 4, a discharge hopper 5, a powder screening frame structure 6, a discharge pipe 7, a vibration motor 8, a feeding and drying frame structure 9, a heat insulation sealing box 10, an electric heating pipe 11, a connecting pipeline 12, an air outlet pipeline 13, a fan 14, a connecting cover 15 and a circulating pipeline 16, wherein the bottom mounting plate 2 is connected to the lower part of the mounting frame 1 through bolts; the shock absorption frame structures 3 are respectively arranged at the four corners of the lower part of the bottom mounting plate 2; the supporting legs 4 are arranged at the lower part of the shock absorption frame structure 3; the discharge hopper 5 is welded in the middle of the inner side of the bottom mounting plate 2; the powder screening frame structure 6 is arranged on the inner side of the mounting frame 1; the discharge pipe 7 is embedded at the lower part of the discharge hopper 5; the vibrating motor 8 is connected to the left side of the lower part of the discharging hopper 5 through a bolt; the feeding drying frame structure 9 is arranged on the left side of the upper part of the mounting frame 1; the heat insulation sealing box 10 is connected to the right side of the upper part of the mounting frame 1 through bolts; the electric heating pipe 11 is connected with the inner side of the heat insulation sealing box 10 through screws; the connecting pipeline 12 is connected to the lower part of the left side of the heat insulation sealing box 10 through bolts; the air outlet pipeline 13 is welded at the lower part of the heat insulation sealing box 10; the fan 14 is connected to the right side of the heat insulation sealing box 10 through bolts; the connecting cover 15 is connected to the right side of the fan 14 through screws; one end of the circulating pipeline 16 is connected with the right bolt of the mounting frame 1, and the other end of the circulating pipeline is connected with the right bolt of the connecting cover 15; the shock absorption frame structure 3 comprises a mounting sleeve 31, a bottom plate 32, a reinforcing plate 33, a shock absorption pipe 34, a shock absorption rod 35, a shock absorption spring 36, a top plate 37 and an ear plate 38, wherein the bottom plate 32 is welded on the upper part of the mounting sleeve 31; the reinforcing plate 33 is welded at the corner between the mounting sleeve 31 and the bottom plate 32; the shock absorption pipe 34 is arranged at the upper part of the bottom plate 32; the damping rod 35 is inserted into the upper part of the inner side of the damping tube 34; the damping spring 36 is sleeved on the upper part of the outer side of the damping rod 35; the top plate 37 is arranged at the upper part of the shock absorption rod 35; the ear plates 38 are respectively coupled to the lower part of the shock absorbing pipe 34 and the upper part of the shock absorbing rod 35; the shock absorption tube 34, the shock absorption rod 35 and the shock absorption spring 36 are matched with each other to form a simple shock absorption structure, the two shock absorption structures are obliquely crossed in tandem, the shock absorption effect can be achieved in the left-right direction, the shock absorption effect can be achieved in the up-down direction, and therefore the shock absorption effect of the device is improved.

As shown in fig. 3, in the above embodiment, specifically, the feed drying rack structure 9 includes a feed hopper 91, a dust cover 92, a separation grid 93, an air inlet duct 94, a conical hollow cover 95 and an air outlet mesh 96, wherein the dust cover 92 is hinged to the upper portion of the feed hopper 91; the separation grid 93 is connected to the upper part of the inner side of the feed hopper 91 through screws; the air inlet pipeline 94 is embedded in the lower part of the inner side of the feed hopper 91; the conical hollow cover 95 is in threaded connection with the left side of the upper part of the air inlet pipeline 94; the air outlet nets 96 are respectively embedded at the front end and the rear end of the conical hollow cover 95; hot air is sent into the inner side of the conical hollow cover 95 from the inner side of the air inlet pipeline 94, is blown to the inner side of the feed hopper 91 through the air outlet net 96, the dustproof cover 92 is opened, materials are poured into the feed hopper 91, agglomerated materials are intercepted by the separation grid 93, powdery materials fall through the separation grid 93, hot air on the inner side of the air outlet net 96 dries the materials in advance, the dustproof cover 92 is closed, and the agglomerated materials on the upper portion of the separation grid 93 are crushed and fall down.

In the above embodiment, as shown in fig. 4, specifically, the powder screening frame structure 6 includes a side plate 61, a powder screening net 62, a support rod 63, a positioning pipe 64, a material guide plate 65 and a bolt plate 66, wherein the powder screening net 62 is welded on the lower portion of the inner side of the side plate 61; the supporting rods 63 are respectively welded at the left side and the right side of the side plate 61; the positioning pipe 64 is sleeved at the lower part of the outer side of the supporting rod 63; the material guide plate 65 is connected to the upper part of the support rod 63 through bolts; the bolt plate 66 is welded on one side of the guide plate 65 far away from the side plate 61; the bolt plate 66 is first detached from the bolt connected to the mounting frame 1, the mounting frame 1 is detached from the upper portion of the bottom mounting plate 2, and finally the side plate 61 and the powder screen 62 are moved upward to separate the support rod 63 from the inner side of the positioning pipe 64, thereby detaching the powder screen 62 and cleaning the powder screen 62.

In the above embodiment, specifically, a plurality of shock absorbing pipes 34, shock absorbing rods 35 and shock absorbing springs 36 are respectively arranged, and the shock absorbing pipes 34, the shock absorbing rods 35 and the shock absorbing springs 36 are respectively arranged between the bottom plate 32 and the top plate 37 in an intersecting manner.

In the above embodiment, specifically, the ear plates 38 are welded to the upper left and right sides of the bottom plate 32 and the lower left and right sides of the top plate 37, respectively, and the ear plate 38 on the right side is disposed at the front end of the ear plate 38 on the left side.

In the above embodiment, specifically, the upper portion of the top plate 37 is connected with the four lower corners of the bottom mounting plate 2 by bolts, the mounting sleeve 31 is sleeved on the upper portion of the outer side of the supporting leg 4, and the connecting position is provided with bolts.

In the above embodiment, specifically, the feeding hopper 91 is welded on the left side of the upper portion of the mounting frame 1, and the inner side of the feeding hopper is communicated with the inner side of the mounting frame 1, and the separation grille 93 is disposed on the upper portion of the tapered hollow cover 95.

In the above embodiment, specifically, the right side of the separation grill 93 is inclined downward, and the lower portion of the right side of the air inlet duct 94 is connected to the left flange of the connecting duct 12.

In the above embodiment, specifically, the positioning pipes 64 are respectively disposed on the left and right sides of the upper portion of the discharge hopper 5, the lower portion of the discharge hopper is welded to the bottom mounting plate 2, and the bolt plates 66 are respectively bolted to the left and right sides of the inside of the mounting frame 1.

In the above embodiment, specifically, the middle position of the powder sieving net 62 is arranged obliquely downwards, and the lower part is arranged at the upper part of the inner side of the discharging hopper 5.

Principle of operation

The utility model discloses a theory of operation: when the powder screening machine is used, the dustproof cover 92 is opened, materials are poured into the feeding hopper 91, the caked materials are intercepted by the separation grating 93, the powdery materials fall through the separation grating 93, the electric heating pipe 11 and the fan 14 are started simultaneously, part of hot air enters the inner side of the air inlet pipeline 94 through the connecting pipeline 12, the hot air in the inner side of the air outlet network 96 dries the materials in advance, the dustproof cover 92 is closed, the caked materials on the upper portion of the separation grating 93 are crushed and fall down, the materials fall on the upper portion of the powder screening network 62, the vibrating motor 8 drives the mounting frame 1 and the bottom mounting plate 2 to drive the powder screening frame structure 6 to vibrate integrally to screen the powder, hot air in the inner side of the heat insulation sealing box 10 is blown to the inner side of the mounting frame 1 through the air outlet pipeline 13 to dry the materials, the screened materials fall on the inner side of the discharging hopper 5 and pass through the discharging pipe 7, and when the materials vibrate, the shock absorption rod 35 moves on the inner side of the shock absorption tube 34, the shock absorption spring 36 absorbs shock, the supporting leg 4 is enabled to stand on the ground stably, and the two groups of shock absorption tubes 34, the shock absorption rod 35 and the shock absorption spring 36 are arranged in an intersecting mode, so that transverse shock absorption and longitudinal shock absorption can be achieved.

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 multifunctional powder drying device of the powder sieving machine is characterized by comprising a mounting frame (1), a bottom mounting plate (2), a shock absorption frame structure (3), supporting legs (4), a discharging hopper (5), a powder screening frame structure (6), a discharging pipe (7), a vibrating motor (8), a feeding and drying frame structure (9), a heat insulation sealing box (10), an electric heating pipe (11), a connecting pipeline (12), an air outlet pipeline (13), a fan (14), a connecting cover (15) and a circulating pipeline (16), wherein the bottom mounting plate (2) is in bolted connection with the lower part of the mounting frame (1); the shock absorption frame structures (3) are respectively arranged at the four corners of the lower part of the bottom mounting plate (2); the supporting legs (4) are arranged at the lower part of the shock absorption frame structure (3); the discharge hopper (5) is welded in the middle of the inner side of the bottom mounting plate (2); the powder screening frame structure (6) is arranged on the inner side of the mounting frame (1); the discharge pipe (7) is embedded at the lower part of the discharge hopper (5); the vibrating motor (8) is connected to the left side of the lower part of the discharging hopper (5) through a bolt; the feeding drying frame structure (9) is arranged on the left side of the upper part of the mounting frame (1); the heat insulation sealing box (10) is connected to the right side of the upper part of the mounting frame (1) through bolts; the electric heating pipe (11) is connected to the inner side of the heat insulation sealing box (10) through screws; the connecting pipeline (12) is connected to the lower part of the left side of the heat insulation sealing box (10) through bolts; the air outlet pipeline (13) is welded at the lower part of the heat insulation sealing box (10); the fan (14) is connected to the right side of the heat insulation seal box (10) through bolts; the connecting cover (15) is connected to the right side of the fan (14) through screws; one end of the circulating pipeline (16) is connected with the right side of the mounting frame (1) through a bolt, and the other end of the circulating pipeline is connected with the right side of the connecting cover (15) through a bolt; the shock absorption frame structure (3) comprises an installation sleeve (31), a bottom plate (32), a reinforcing plate (33), a shock absorption pipe (34), a shock absorption rod (35), a shock absorption spring (36), a top plate (37) and an ear plate (38), wherein the bottom plate (32) is welded on the upper part of the installation sleeve (31); the reinforcing plate (33) is welded at the corner of the mounting sleeve (31) and the bottom plate (32); the shock absorption pipe (34) is arranged at the upper part of the bottom plate (32); the damping rod (35) is inserted into the upper part of the inner side of the damping pipe (34); the damping spring (36) is sleeved on the upper part of the outer side of the damping rod (35); the top plate (37) is arranged on the upper part of the shock absorption rod (35); the ear plates (38) are respectively connected with the lower part of the shock absorption pipe (34) and the upper part of the shock absorption rod (35) in a shaft mode.

2. The multifunctional powder drying device of the powder screening machine as claimed in claim 1, wherein said feeding drying frame structure (9) comprises a feeding hopper (91), a dust cover (92), a separation grid (93), an air inlet pipeline (94), a conical hollow cover (95) and an air outlet net (96), said dust cover (92) is hinged on the upper part of the feeding hopper (91); the separation grating (93) is connected to the upper part of the inner side of the feed hopper (91) through screws; the air inlet pipeline (94) is embedded in the lower part of the inner side of the feed hopper (91); the conical hollow cover (95) is in threaded connection with the left side of the upper part of the air inlet pipeline (94); the air outlet net (96) is respectively embedded at the front end and the rear end of the conical hollow cover (95).

3. The multifunctional powder drying device of the powder screening machine as claimed in claim 1, wherein said powder screening frame structure (6) comprises a side plate (61), a powder screening net (62), a support rod (63), a positioning tube (64), a material guide plate (65) and a bolt plate (66), said powder screening net (62) is welded at the lower inner side of the side plate (61); the supporting rods (63) are respectively welded at the left side and the right side of the side plate (61); the positioning pipe (64) is sleeved at the lower part of the outer side of the supporting rod (63); the material guide plate (65) is connected to the upper part of the support rod (63) through bolts; the bolt plate (66) is welded on one side of the guide plate (65) far away from the side plate (61).

4. The powder drying device of the multifunctional powder sifter of claim 1, wherein a plurality of shock absorption tubes (34), shock absorption rods (35) and shock absorption springs (36) are respectively arranged, and the shock absorption tubes (34), the shock absorption rods (35) and the shock absorption springs (36) are respectively arranged between the bottom plate (32) and the top plate (37) in a crossed manner.

5. The powder drying device of the multifunctional powder sifter of claim 1, wherein the ear plates (38) are welded to the left and right sides of the upper portion of the bottom plate (32) and the left and right sides of the lower portion of the top plate (37), respectively, and the ear plate (38) on the right side is disposed at the front end of the ear plate (38) on the left side.

6. The multifunctional powder drying device of the powder sieving machine as claimed in claim 1, wherein the upper part of the top plate (37) is bolted with the four corners of the lower part of the bottom mounting plate (2), the mounting sleeve (31) is sleeved on the upper part of the outer side of the supporting leg (4), and the joint is provided with bolts.

7. The multifunctional powder drying device of powder sifter of claim 2, wherein the feed hopper (91) is welded on the left side of the upper part of the mounting frame (1) and the inner side is communicated with the inner side of the mounting frame (1), and the separation grille (93) is arranged on the upper part of the conical hollow cover (95).

8. The multifunctional powder drying device of powder sifter of claim 2, wherein the right side of the separating grid (93) is inclined downwards, and the lower right side of the air inlet pipe (94) is connected with the left flange of the connecting pipe (12).

9. The multifunctional powder drying device of powder screening machine as claimed in claim 3, characterized in that said positioning pipes (64) are respectively disposed at the left and right sides of the upper portion of the discharging hopper (5), and the lower portion is welded with the bottom mounting plate (2), and said bolt plates (66) are respectively bolted at the left and right sides of the inside of the mounting frame (1).

10. The multifunctional powder drying device of powder sifter of claim 3, wherein the middle position of the powder sifting net (62) is arranged obliquely downwards, and the lower part is arranged at the upper part of the inner side of the discharging hopper (5).