CN211210607U - Plant straw expansion softening pretreatment equipment - Google Patents

Abstract

The utility model provides a plant straw inflation softens former treatment facility, it includes the mounting bracket, popped softening installation, power device and feed arrangement, popped softening installation is on the mounting bracket, power device installs on the mounting bracket, and it is connected with popped softening installation transmission, feed arrangement includes the feeding case, spacing subassembly, drive assembly and stirring subassembly, the feeding case is including the feeding storehouse and the play feed bin that set up from top to bottom, the utility model discloses a reciprocating motion about crushing unit is in the feeding storehouse, the in-process rotation unit that removes at it removes along seting up the helicla flute route on feeding storehouse inner wall, the puddler carries out the omnidirectional and turns to long straw in the feeding storehouse, the blade cuts into short straw to long straw to crushing unit reciprocates the spacing subassembly of cooperation and lets in popped softening installation with short straw ration, has solved among the prior art that the influence that straw smashed and thoroughly not lead to popped equipment feed inlet jam does not have the processing process The technical problem is solved.

Description

Plant straw expansion softening pretreatment equipment

Technical Field

The utility model relates to a straw treatment facility specifically is a processing equipment before plant straw inflation softening.

Background

In order to improve the utilization ratio of waste materials such as plant straw, need to carry out pyrolysis carbonization treatment with kibbling straw after smashing the plant straw waste material again, and then obtain the carbon dust, crushing process makes long plant straw form short straw waste material, for further improvement waste material pyrolysis carbonization effect, need carry out popped softening treatment with the straw waste material, the event lets in the inflation softening equipment after needing the straw to smash and handles, but straw waste material after smashing easily produces at the equipment feed inlet that poppes and piles up, cause the jam, influence popped softening efficiency, and then influence pyrolysis carbonization process.

Chinese patent application number is CN 201720938773.3's utility model patent discloses a popped equipment of straw for the popped of straw, include: chassis, driving motor, crushing apparatus main part and popped equipment main part, be equipped with motor mount pad, crushing apparatus mount pad and popped equipment mount pad on the chassis, driving motor crushing apparatus main part with popped equipment main part sets up respectively the motor mount pad crushing apparatus mount pad with on the popped equipment mount pad, the crushing apparatus main part outside is equipped with feed hopper and discharging pipe, feed hopper with the discharging pipe is located respectively on the top and the side in the crushing apparatus main part outside, this device structural design is reasonable, combines the design with straw crushing apparatus and popped equipment through the adoption, compares traditional straw popped process and need smash earlier popped two steps process again, and this device has simplified manufacturing procedure, has improved machining efficiency.

However, the straw is crushed by the crushing cutter rotating in the crushing cavity in the using process, the method has rotating dead angles, so that the crushing is incomplete, and the long straw is easy to block at the feed inlet of the bulking machine, so that the production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a plant straw inflation softens former treatment facility, it is through rubbing crusher component reciprocating motion from top to bottom in the feeding storehouse, the in-process rotation unit that removes moves along seting up the helicla flute route on feeding storehouse inner wall, the puddler carries out the omnidirectional to long straw in the feeding storehouse and stirs, the blade cuts into short straw with long straw, and rubbing crusher component reciprocates the spacing subassembly of cooperation and will short quantitative inflation softening installation that lets in of straw, the technical problem that the influence that the straw smashed and thoroughly lead to bulking equipment feed inlet to block up among the prior art does not dare the processing procedure is solved.

In order to achieve the above object, the utility model provides a following technical scheme:

a plant straw expansion softening pretreatment device comprises:

a mounting frame;

an expansion softening device mounted on the mounting frame;

the power device is arranged on the mounting frame and is in transmission connection with the expansion softening equipment; and

the feeding device comprises a feeding box, a limiting component, a driving component and a crushing component, wherein the feeding box is fixed on the expansion softening equipment and comprises a feeding bin and a discharging bin which are arranged up and down; the limiting assembly is arranged in the discharging bin in a sliding mode and penetrates through the feeding bin to extend upwards; the driving assembly is mounted on the mounting frame and is in interference fit with the top of the limiting assembly; the crushing assembly is rotatably arranged on the limiting assembly and is positioned in the feeding bin;

in the working process, spacing subassembly is located the initial position, and the raw materials is followed the feeding storehouse gets into store in the play feed bin, later the drive assembly drive spacing subassembly moves down, raw materials in the play feed bin get into in the expansion softening equipment, just crushing unit is in the in-process that spacing subassembly moved down the ejection of compact moves down and stirs raw materials in the feeding storehouse the drive assembly moves up and reverses the stirring the raw materials in the feeding storehouse that moves up the in-process that resets.

As an improvement, the limiting assembly comprises a material blocking part, a sliding rod, a limiting block, a guide strip, a guide groove and a spring, wherein the material blocking part is of an I-shaped structure and is arranged in the discharging bin in a sliding manner; the sliding rod is fixed at the top of the material blocking piece and extends upwards to extend through the feeding bin; the limiting block is hemispherical and is fixedly arranged at the top end of the sliding rod; the guide strips are fixed on the sliding rod along the length direction of the sliding rod, and the pair of guide strips are symmetrically arranged on the two radial sides of the sliding rod; the guide grooves are formed in the top of the feeding bin and are matched with the guide strips in a one-to-one corresponding mode; the spring set up in the stopper reaches between the feeding storehouse, and its cover is established a pair of the gib block outside.

As the improvement, the material blocking piece comprises an upper baffle, a lower baffle and a connecting rod, wherein the connecting rod is connected with the upper baffle and the lower baffle, the upper baffle and the lower baffle are both arranged to be conical, and the tip faces upwards.

As an improvement, the driving assembly comprises a mounting table, a driving motor and a matching block, and the mounting table is fixed on the mounting frame; the driving motor is arranged on the mounting table; the matching block is fixedly connected with the hole inner output end of the driving motor and comprises a protruding portion and a matching portion, and the protruding portion and the matching portion are sequentially in interference fit with the limiting block.

As an improvement, the crushing assembly comprises a limiting ring, a rotating unit and a spiral groove, the limiting ring is arranged around the sliding rod and is positioned between the guide bar and the material blocking part, and the limiting rings are arrayed along the length direction of the sliding rod; the rotating units are rotatably arranged on the sliding rods and sleeved outside the limiting rings, and the rotating units are arranged in a staggered mode from top to bottom; the four spiral grooves are circumferentially arrayed on the inner wall of the feeding bin by taking the axis of the feeding bin as a center, and two ends of the rotating unit in the length direction are respectively clamped into the spiral grooves.

As an improvement, the rotating unit comprises a rotating ring, a rotating groove, a stirring rod and a blade, and the rotating ring is rotatably arranged on the sliding rod; the rotating groove is arranged on the inner wall of the rotating ring in a surrounding mode, and the limiting ring is rotatably arranged in the rotating groove; the pair of stirring rods are symmetrically fixed at the radial two ends of the rotating ring and extend outwards away from the rotating ring, and the free ends of the stirring rods are clamped in the spiral grooves; the blades are arranged along the length direction of the stirring rod, and the blades are circumferentially arrayed on the stirring rod by taking the axis of the stirring rod as a center.

As an improvement, a feeding pipe is arranged at the top end of the feeding bin and communicated with external feeding equipment.

The beneficial effects of the utility model reside in that:

(1) the utility model discloses in rotate the unit and remove along the helicla flute when keeping off material piece and reciprocating, the puddler overturns long straw and stirs, makes short straw wherein fall into out the feed bin in, when carrying out the stirring to long straw simultaneously, the blade is cut the pole in the field and is smashed, does not return in the feed bin and appears cutting kibbling dead angle, has improved crushing effect and crushing efficiency.

(2) The utility model discloses well fender material spare shifts up, and the lower baffle plugs up the export of going out the feed bin, and the overhead gage is opened the import of going out the feed bin, and short straw waste material gets into out the feed bin, and then the fender material spare shifts down, and the lower baffle is opened the export of going out the feed bin, and the straw waste material falls, and the overhead gage plugs up the import of going out the feed bin simultaneously, prevents that unnecessary straw waste material from getting into out the feed bin, has controlled the feed volume that the straw waste material got into the equipment that softens of inflation, guarantees that the import of the equipment that softens of inflation can not block up, improves bulking;

(3) the utility model discloses in spacing subassembly be in the cooperation state with the cooperation piece all the time at the in-process stopper that reciprocates, the phenomenon of knocking can not appear, can not produce noise and vibrations, has guaranteed the stability of equipment operation and operational environment's travelling comfort.

To sum up, the utility model has the advantages of simple structure, design benefit, smooth and easy and crushing effectual of inflation softening installation feeding, be particularly useful for plant straw's processing procedure.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of FIG. 2 at D;

FIG. 4 is a first diagram illustrating a movement state of the position limiting assembly;

FIG. 5 is a schematic view of a movement state of the position limiting assembly;

FIG. 6 is a schematic diagram of the shredder assembly mechanism;

FIG. 7 is an enlarged view at C of FIG. 5;

FIG. 8 is a schematic sectional view of the rotating unit;

fig. 9 is an enlarged view of fig. 3 at B.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example (b):

as shown in fig. 1 and 2, a plant straw expansion and softening pretreatment device comprises:

a mounting frame 1;

an expansion-softening device 2, the expansion-softening device 2 being mounted on the mounting frame 1;

the power device 3 is installed on the mounting frame 1, and is in transmission connection with the expansion softening equipment 2; and

the feeding device 4 comprises a feeding box 41, a limiting component 42, a driving component 43 and a crushing component 44, wherein the feeding box 41 is fixed on the expansion softening equipment 2 and comprises a feeding bin 411 and a discharging bin 412 which are arranged up and down; the limiting assembly 42 is slidably arranged in the discharging bin 412 and extends upwards through the feeding bin 411; the driving assembly 43 is mounted on the mounting frame 1 and is in interference fit with the top of the limiting assembly 42; the crushing assembly 44 is rotatably mounted on the limiting assembly 42 and is positioned in the feeding bin 411;

in the working process, the limiting assembly 42 is located at the initial position, the raw material enters the discharging bin 412 from the feeding bin 411 for storage, then the driving assembly 43 drives the limiting assembly 42 to move downwards, the raw material in the discharging bin 412 enters the expansion softening device 2, the crushing assembly 44 moves downwards and stirs the raw material in the feeding bin 411 in the process that the limiting assembly 42 moves downwards to discharge, and moves upwards and reversely stirs the raw material in the feeding bin 411 in the process that the driving assembly 43 moves upwards to reset.

Further, a feeding pipe 4111 is arranged at the top end of the feeding bin 411, and the feeding pipe 4111 is communicated with an external feeding device.

It should be noted that the straw waste enters the feeding bin 411 through the feeding pipe 4111.

It should be further noted that the expansion softening device 2 is the prior art, and the specific working principle and working process thereof are not described herein in detail.

It is important to note that the power device 3 is a belt pulley transmission system, the power source thereof is a motor, and the power device 3 drives the expansion softening equipment 2 to perform the expansion operation.

As shown in fig. 2 to 5, the limiting assembly 42 includes a material blocking member 421, a sliding rod 422, a limiting block 423, a guide bar 424, a guide groove 425 and a spring 426, wherein the material blocking member 421 is an i-shaped structure and is slidably disposed in the discharging bin 412; the sliding rod 422 is fixed on the top of the material blocking member 421, and extends upwards through the feeding bin 411; the limiting block 423 is hemispherical and is fixedly arranged at the top end of the sliding rod 422; the guide strips 424 are fixed on the sliding rod 422 along the length direction of the sliding rod 422, and a pair of the guide strips 424 are symmetrically arranged at two radial sides of the sliding rod 422; the guide grooves 425 are formed in the top of the feeding bin 411 and are matched with the guide strips 424 in a one-to-one correspondence manner; the spring 426 is disposed between the stop block 423 and the feeding bin 411, and is sleeved outside the pair of guide bars 424.

It should be noted that, as shown in fig. 3, the guide strips 424 and the guide grooves 425 cooperate to ensure that the retaining member 421 can only slide vertically in the discharging bin 412, thereby ensuring the stability of the movement thereof.

Further, the material blocking member 421 includes an upper baffle 4211, a lower baffle 4212 and a connecting rod 4213, the connecting rod 4213 is connected with the upper baffle 4211 and the lower baffle 4212, and the upper baffle 4211 and the lower baffle 4212 are both set to be conical and have upward tips.

It should be noted that, as shown in fig. 4 and fig. 5, the material blocking member 421 moves upward, the lower blocking plate 4212 blocks the outlet of the discharging bin 412, the upper blocking plate 4211 moves upward to open the inlet of the discharging bin 412, straw waste enters the discharging bin 412 from the feeding bin 411, and then the material blocking member 421 moves downward, the lower blocking plate 4212 opens the outlet of the feeding bin 411, straw waste enters the expansion and softening device 2, and the upper blocking plate 4211 blocks the inlet of the discharging bin 412, so that the rest straw waste is prevented from entering the discharging bin 412, and the feeding amount of the discharging bin 412 is controlled, thereby controlling the feeding amount of the expansion and softening device 2.

It should be further noted that the upper baffle 4211 and the lower baffle 4212 are both conical and have upward pointed ends, so that the straw waste is ensured to have certain fluidity when entering the discharging bin 412 and leaving the discharging bin 412, and the feeding efficiency of the straw waste is improved.

As shown in fig. 2, as a preferred embodiment, the driving assembly 43 includes a mounting platform 431, a driving motor 432 and a matching block 433, wherein the mounting platform 431 is fixed on the mounting frame 1; the driving motor 432 is disposed on the mount 431; the matching block 433 is fixedly connected with the power output end of the driving motor 432, and includes a protruding portion 4331 and a matching portion 4332, and the protruding portion 4331 and the matching portion 4332 are sequentially in interference fit with the limiting block 423.

It should be noted that, as shown in fig. 2 and fig. 4, the hemispherical stopper 423 is always in an abutting state with the protruding portion 4331 and the matching portion 4332, when the hemispherical stopper 423 is matched with the protruding portion 4331, the sliding rod 422 and the material blocking member 421 move downwards, and the spring 426 contracts; when the engaging portion 4332 is engaged, the sliding rod 422 and the material blocking member 421 move upward, and the spring 426 is extended.

As shown in fig. 6 to 9, as a preferred embodiment, the pulverizing assembly 44 includes a limiting ring 441, a rotating unit 442 and a spiral groove 443, the limiting ring 441 is disposed around the sliding rod 422, the limiting ring 441 is disposed between the guide bar 424 and the stopping member 421, and a plurality of limiting rings 441 are arranged along the length direction of the sliding rod 422; the rotating units 442 are rotatably mounted on the sliding rod 422 and sleeved outside the limiting ring 441, and the rotating units 442 are staggered from top to bottom; the four spiral grooves 443 are circumferentially arrayed on the inner wall of the feeding bin 411 with the axis of the feeding bin 411 as the center, and two ends of the rotating unit 442 in the length direction are respectively clamped in the spiral grooves 443.

Further, the rotating unit 442 includes a rotating ring 4421, a rotating groove 4422, a stirring rod 4423 and a blade 4424, wherein the rotating ring 4421 is rotatably mounted on the sliding rod 422; the rotating groove 4422 is circumferentially formed on the inner wall of the rotating ring 4421, and the limit ring 441 is rotatably arranged in the rotating groove 4422; the pair of stirring rods 4423 are symmetrically fixed at the radial two ends of the rotating ring 4421 and extend outwards away from the rotating ring 4421, and the free ends of the stirring rods 4423 are clamped in the spiral grooves 443; the blades 4424 are arranged along the length direction of the stirring rod 4423, and a plurality of the blades 4424 are circumferentially arrayed on the stirring rod 4423 with the axis of the stirring rod 4423 as the center.

It should be noted that, as shown in fig. 8 and 9, the limiting ring 441 and the rotating groove 4422 cooperate to ensure that the rotating unit 442 moves in the length direction of the sliding rod 422, i.e., when the sliding rod 422 moves up or down, the rotating unit 442 moves up or down.

It should be further noted that as shown in fig. 6 and 7, the free end of the stirring rod 4423 is clamped into the spiral groove 443, when the sliding rod 422 moves upwards, the stirring rod 4423 moves along the track of the spiral groove 443, that is, the rotating unit 442 rotates to stir and turn over the long straw waste in the feeding bin 411, so that the short straw waste can enter the discharging bin 412, and meanwhile, the stirring and turning over of the straw waste can make the short straw waste have a certain looseness, so that the materials entering the expansion and softening device 2 are prevented from being stacked and bonded, and the expansion effect is further improved; when the sliding rod 422 moves downwards, the stirring rod 4423 moves along the track of the spiral groove 443, that is, the rotating unit 442 rotates in the opposite direction to the above direction, and turns and cuts the long straw waste in the opposite direction, so as to ensure the crushing effect.

The working process is as follows:

in the using process of the utility model, straw waste materials are crushed by a crusher and then enter the feeding bin 411 through the feeding pipe 4111, the driving motor 432 rotates, the matching part 4332 on the matching block 433 and the limiting block 423 are in a contact state, the spring 426 extends, the sliding rod 422 and the material blocking piece 421 move upwards, the outlet of the discharging bin 412 is blocked by the lower baffle 4212, the inlet of the discharging bin 412 is opened by the upper baffle 4211, straw waste materials enter the discharging bin 412 from the feeding bin 411, in the process that the sliding rod 422 moves upwards, the rotating unit 442 moves upwards along the sliding rod 422, meanwhile, the stirring rod 4423 moves along the path of the spiral groove 443, namely, the stirring rod 4423 rotates upwards in the feeding bin 411, the blade 4424 moves along the stirring rod 4423, and the straw waste materials in the feeding bin 411 are stirred and turned, then, the protruding portion 4331 on the matching block 433 is in contact with the limiting block 423, the spring 426 is compressed, the sliding rod 422 and the material blocking member 421 move upwards, the lower baffle 4212 opens the outlet of the discharging bin 412, meanwhile, the upper baffle 4211 blocks the inlet of the discharging bin 412, straw waste enters the expansion and softening device 2 from the discharging bin 412 for expansion, during the downward movement of the sliding rod 422, the rotating unit 442 moves downwards along with the sliding rod 422, and meanwhile, the stirring rod 4423 moves along the path of the spiral groove 443, that is, the stirring rod 4423 rotates downwards in the feeding bin 411 to stir the straw waste in the feeding bin 411.

Claims (7)

1. A plant straw expansion softening pretreatment equipment is characterized by comprising:

a mounting frame (1);

an expansion softening device (2), the expansion softening device (2) being mounted on the mounting frame (1);

the power device (3) is mounted on the mounting frame (1) and is in transmission connection with the expansion softening equipment (2); and

the feeding device (4) comprises a feeding box (41), a limiting component (42), a driving component (43) and a crushing component (44), wherein the feeding box (41) is fixed on the expansion softening equipment (2) and comprises a feeding bin (411) and a discharging bin (412) which are arranged up and down; the limiting assembly (42) is arranged in the discharging bin (412) in a sliding mode and penetrates through the feeding bin (411) to extend upwards; the driving assembly (43) is arranged on the mounting frame (1) and is in interference fit with the top of the limiting assembly (42); the smashing assembly (44) is rotatably arranged on the limiting assembly (42) and is positioned in the feeding bin (411);

in the working process, the limiting assembly (42) is located at an initial position, straw waste materials enter the discharging bin (412) from the feeding bin (411) to be stored, then the driving assembly (43) drives the limiting assembly (42) to move downwards, the straw waste materials in the discharging bin (412) enter the expansion softening equipment (2), the smashing assembly (44) moves downwards and stirs the straw waste materials in the feeding bin (411) in the process that the limiting assembly (42) moves downwards to discharge, and moves upwards and reversely stirs the straw waste materials in the feeding bin (411) in the process that the driving assembly (43) moves upwards to reset.

2. The plant straw expansion and softening pretreatment equipment according to claim 1, wherein the limiting assembly (42) comprises a material blocking member (421), a sliding rod (422), a limiting block (423), a guide strip (424), a guide groove (425) and a spring (426), wherein the material blocking member (421) is of an I-shaped structure and is slidably arranged in the discharging bin (412); the sliding rod (422) is fixed at the top of the material blocking part (421) and extends upwards to extend through the feeding bin (411); the limiting block (423) is hemispherical and is fixedly arranged at the top end of the sliding rod (422); the guide strips (424) are fixed on the sliding rod (422) along the length direction of the sliding rod (422), and a pair of guide strips (424) are symmetrically arranged at two longitudinal sides of the sliding rod (422); the guide grooves (425) are formed in the top of the feeding bin (411) and are matched with the guide strips (424) in a one-to-one corresponding mode; the spring (426) is arranged between the limiting block (423) and the feeding bin (411) and sleeved outside the pair of guide strips (424).

3. The plant straw expansion and softening pretreatment equipment according to claim 2, wherein the material blocking piece (421) comprises an upper baffle plate (4211), a lower baffle plate (4212) and a connecting rod (4213), the connecting rod (4213) is connected with the upper baffle plate (4211) and the lower baffle plate (4212), and the upper baffle plate (4211) and the lower baffle plate (4212) are both arranged to be conical and the tips of the upper baffle plate and the lower baffle plate face upwards.

4. The plant straw expansion and softening pretreatment equipment according to claim 2, wherein the driving assembly (43) comprises a mounting table (431), a driving motor (432) and a matching block (433), and the mounting table (431) is fixed on the mounting frame (1); the driving motor (432) is arranged on the mounting table (431); the matching block (433) is fixedly connected with the hole inner output end of the driving motor (432) and comprises a protruding portion (4331) and a matching portion (4332), and the protruding portion (4331) and the matching portion (4332) are sequentially in interference fit with the limiting block (423).

5. The plant straw expansion and softening pretreatment equipment according to claim 2, wherein the smashing assembly (44) comprises a limiting ring (441), a rotating unit (442) and a spiral groove (443), the limiting ring (441) is arranged around the sliding rod (422), the limiting ring (441) is positioned between the guide bar (424) and the material blocking member (421), and a plurality of limiting rings (441) are arrayed along the length direction of the sliding rod (422); the rotating units (442) are rotatably mounted on the sliding rod (422) and sleeved outside the limiting ring (441), and the rotating units (442) are arranged in a staggered manner from top to bottom; the four spiral grooves (443) are circumferentially arrayed on the inner wall of the feeding bin (411) by taking the axis of the feeding bin (411) as a center, and two ends of the rotating unit (442) in the length direction are respectively clamped into the spiral grooves (443).

6. The plant straw expansion and softening pretreatment equipment according to claim 5, wherein the rotating unit (442) comprises a rotating ring (4421), a rotating groove (4422), a stirring rod (4423) and a blade (4424), and the rotating ring (4421) is rotatably mounted on the sliding rod (422); the rotating groove (4422) is formed on the inner wall of the rotating ring (4421) in a surrounding mode, and the limiting ring (441) is rotatably arranged in the rotating groove (4422); the pair of stirring rods (4423) are symmetrically fixed at the radial two ends of the rotating ring (4421) and extend outwards away from the rotating ring (4421), and the free ends of the stirring rods (4423) are clamped in the spiral grooves (443); the blades (4424) are arranged along the length direction of the stirring rod (4423), and the blades (4424) are circumferentially arrayed on the stirring rod (4423) by taking the axis of the stirring rod (4423) as the center.

7. The plant straw expansion and softening pretreatment equipment according to claim 1, wherein a feeding pipe (4111) is arranged at the top end of the feeding bin (411), and the feeding pipe (4111) is communicated with external powder feeding equipment.

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