CN115555112A

CN115555112A - Powder reducing mechanism with hierarchical function

Info

Publication number: CN115555112A
Application number: CN202211125412.9A
Authority: CN
Inventors: 蓝辉; 黄灿荣; 蓝选斌
Original assignee: Longyan Shanhe Machinery Manufacturing Co ltd
Current assignee: Longyan Shanhe Machinery Manufacturing Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-01-03
Anticipated expiration: 2042-09-16
Also published as: CN115555112B

Abstract

The present disclosure relates to powder pulverizing apparatuses, and particularly to a powder pulverizing apparatus with a classification function. The invention aims to provide a powder crushing device with a grading function, which can crush through multiple times of collision, has good crushing effect and more diversified crushing functions. The invention provides a powder crushing device with a grading function, which comprises an installation support, a driving motor, a hammer mill assembly, a rotating shaft, a grinding mechanism, a rotating shaft, a filter screen and a grinding mechanism, wherein the driving motor is installed on the right side of the top of the installation support, the rotating shaft is connected to an output shaft of the driving motor, the hammer mill assembly used for carrying out hammer milling on powder is arranged on the installation support, the grinding mechanism is arranged on the hammer mill assembly, and the filter screen is arranged on the hammer mill assembly which is provided with the grinding mechanism used for grinding the powder. When the gas crushing device is used for gas crushing, powder can collide with a plurality of cutting steel wires, so that the powder is strongly collided for a plurality of times, and the crushing effect is better.

Description

Powder reducing mechanism with hierarchical function

Technical Field

The present disclosure relates to powder pulverizing apparatuses, and particularly to a powder pulverizing apparatus with a classification function.

Background

When processing kaolin, heavy calcium and other powders, the powder is often crushed by external force into finer particles.

Through retrieval, the patent with granted patent publication number CN108472659B discloses that powder reducing mechanism includes: an airtight milling container; a powder introducing mechanism having an introducing port opened inward toward the pulverizing container and introducing powder to be pulverized to the introducing port; a powder pulverizing mechanism provided below the inlet in the pulverizing container, for causing high-pressure air to collide with the powder to pulverize the powder; and the classification device is arranged above the introducing port in the crushing container and used for screening the crushed powder and guiding the screened powder out of the crushing container, wherein the inner wall of the crushing container is covered with a porous lining material, and each hole of the lining material is communicated with the gas supply device through a gap between the inner wall and the lining material.

The above patents suffer from the following disadvantages:

1. the high-pressure airflow injected by the crushing nozzle only enables the powder particles to mutually collide to realize crushing, the powder can only be strongly collided once when the high-pressure airflow is sprayed out, and when the high-pressure airflow sprayed out by the crushing nozzle of the powder crushing mechanism accelerates the powder, the powder particles can only collide with the crushing container to crush the powder, so that the crushing effect is limited.

2. The crushing function that only makes the powder collision through high-pressure draught is single, can only smash less powder granule, can't realize the hierarchical crushing, need smash in advance through other crushing apparatus when smashing to the great powder of granule.

Disclosure of Invention

In order to overcome the defects of limited crushing effect and single crushing function of the patent, the invention aims to provide the powder crushing device with the grading function, which can crush by multiple times of collision, has good crushing effect and more diversified crushing function.

The technical implementation scheme of the invention is as follows: the utility model provides a powder reducing mechanism with hierarchical function, including the installing support, driving motor, pivot and hammer mill subassembly, driving motor is installed to installing support top one side, be connected with the pivot on driving motor's the output shaft, be equipped with on the installing support and be used for carrying out the hammer mill subassembly that the hammer mill was ground to the powder, still including the filter screen, grind mechanism and air current cutting mechanism, be equipped with the filter screen on the hammer mill subassembly, be equipped with on the hammer mill subassembly and be used for carrying out the grinding mechanism that grinds to the powder, be equipped with on the installing support and be used for carrying out the air current cutting mechanism that cuts to the powder.

Further, the hammer mill subassembly is including crushing shell, the feeding storehouse, tup and apron, the installing support top is connected with crushing shell, crushing shell top intercommunication has the feeding storehouse, be connected with the tup in the pivot, the tup is located crushing shell, the rotatory tup rotation that drives of pivot is rotatory, in order to carry out the hammer mill to the powder, crushing shell one side rotary type is connected with the apron, the pivot rotary type runs through grinding crushing shell and apron, the crushing shell bottom is uncovered setting, in order to supply the powder discharge that the hammer mill finished, the filter screen is connected in crushing shell's uncovered department, a powder after finishing for the hammer mill filters.

Further, grind the mechanism including the guide casing, grind the casing, servo motor and toper grinding block, the uncovered department intercommunication in crushing shell bottom has the guide casing, guide casing bottom intercommunication has the grinding casing, the grinding casing is the inclined setting that inclines down, and the position of downward sloping is the discharge end of grinding the casing, lean on the upper position to install servo motor in the grinding casing, be connected with the toper grinding block on servo motor's the output shaft, the toper grinding block is located the grinding casing and leans on lower position, the toper grinding block is rotatory to grind the powder after grinding the hammer.

Further, the airflow cutting mechanism comprises an installation sleeve, an installation cylinder, bevel gears, a spiral feeding disc, cutting steel wires, an air inlet pipeline and a discharge pipeline, the installation sleeve is connected to a position, close to the discharge end of the grinding shell, of the installation support, the installation cylinder is sleeved in the installation sleeve, the grinding shell penetrates through the installation sleeve and is communicated with the lower portion of the installation cylinder, the spiral feeding disc is connected with the spiral feeding disc in an internal rotation mode of the installation cylinder, the installation cylinder is penetrated through the top end of the spiral feeding disc, the bevel gears are connected to the top end of the spiral feeding disc and the rotating shaft, the two bevel gears are meshed with each other, so that the rotating shaft rotates to drive the spiral feeding disc to rotate, the spiral feeding disc rotates to convey ground powder, the lower portion of the installation cylinder is communicated with the air inlet pipeline and is used for conveying high-pressure airflow into the installation cylinder, the cutting steel wires are distributed on the spiral feeding disc at uniform intervals in a dense mode and are used for cutting powder in the conveying process, the upper portion of the installation cylinder is connected with the discharge pipeline and used for discharging powder after treatment.

Furthermore, the crushing shell and the material guide shell, the material guide shell and the installation cylinder and the material guide shell and the installation sleeve are detachably arranged so as to crush the powder in a grading way.

The device comprises a crushing shell, a belt speed reducing group, a second annular plate, a feeding frame, a friction wheel and a connecting plate, wherein one side of the crushing shell, which is far away from a cover plate, is rotatably connected with the first annular plate, one side of the outer part of the crushing shell, which is close to the first annular plate, is connected with the connecting plate, the connecting plate is rotatably connected with the friction wheel, the friction wheel penetrates into the crushing shell, the friction wheel is in contact with the first annular plate so as to drive the first annular plate to rotate, the belt speed reducing group is arranged between the friction wheel and a rotating shaft so as to drive the friction wheel to rotate, one side of the inward cover plate is rotatably connected with the second annular plate, the feeding frame is connected between the second annular plate and the first annular plate, and the feeding frame is rotated to shovel in non-crushed thorough powder and convey the powder to the upside of the hammer head so as to carry out the re-grinding on the non-crushed thorough powder.

Further, a feeding hole and a discharging hole are formed in the feeding frame respectively, the feeding hole is used for shoveling powder in the rotating process of the feeding frame, and the discharging hole is used for discharging the powder when the feeding frame rotates to the position above the hammer head.

The feeding frame is rotatably connected with two pressing rollers at positions close to the discharge hole, the two pressing rollers block the discharge hole so that powder discharged along the discharge hole can pass through the pressing rollers, the pressing rollers are connected with first gears, the two first gears are meshed with each other, one outward side of the cover plate is connected with the inner gear, the rotating shaft is connected with the second gear, the crushing shell is rotatably connected with the third gear, the second gear is in transmission connection with the inner gear through the third gear, one inward side of the cover plate is connected with the outer gear ring, the outer gear ring is meshed with one of the first gears so that the rotating shaft drives the two pressing rollers to rotate when rotating, and the powder passing through the pressing rollers can be rolled when the pressing rollers rotate.

Further, still including control unloading mechanism, control unloading mechanism is flitch under including control, swing block, elastic component and material blocking block, the position slidingtype that the feeding storehouse is close to crushing shell is connected with flitch under the control, flitch one side spaced apart has the blanking mouth under the control, flitch one side rotary type is connected with swing block under the control, the material feeding frame can promote swing block when rotatory in order to drive control unloading board removal, can make the blanking mouth aim at the feeding storehouse after the flitch removes under the control, so that the feeding storehouse carries out the unloading, swing block and crushing shell sliding fit, be connected with the elastic component between swing block and the feeding storehouse, in order to make swing block and control unloading reset through elasticity, be connected with the material blocking block on the crushing shell, be used for blocking control unloading flitch.

The invention has the following advantages: 1. when the gas crushing machine is used for gas crushing, powder can collide with a plurality of cutting steel wires, so that the powder is strongly collided for a plurality of times, and the crushing effect is better.

2. When the hammer mill component and the grinding mechanism are used for grinding powder, the powder can be ground through the hammer mill component, the grinding mechanism and the airflow cutting mechanism, the grinding function is more diversified, the powder with larger particles can be pre-ground through the hammer mill component and the grinding mechanism, pre-grinding through other crushing equipment is not needed, and the operation is more convenient.

3. In the using process, the combined application of the single hammer mill component, the hammer mill component and the grinding mechanism and the combined application of the hammer mill component, the grinding mechanism and the airflow cutting mechanism can be selectively applied according to the thickness of the required powder, so that the effect of grading treatment on powder crushing is realized.

4. The invention can send the incompletely crushed powder to the upper part of the hammer head again through the repeated rotation of the feeding frame, thereby carrying out the regrinding on the incompletely crushed powder.

5. The invention can grind the powder by the rotation of the compression roller when the powder is discharged from the feeding frame, thereby improving the crushing effect.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a partial perspective view of the present invention.

FIG. 3 is a schematic perspective view of the hammermill assembly and grinding mechanism of the present invention.

Fig. 4 is a schematic perspective view of the grinding mechanism and the air flow cutting mechanism according to the present invention.

Fig. 5 is a cross-sectional view of the grinding mechanism and the air flow cutting mechanism of the present invention.

FIG. 6 is a schematic view of the connection between the regrinding and feeding mechanism and other components.

Fig. 7 is a schematic partial three-dimensional structure diagram of the regrinding and feeding mechanism of the invention.

Fig. 8 is a schematic perspective view of the regrinding feeding mechanism and the blanking control mechanism of the present invention.

Fig. 9 is a schematic perspective view of the regrinding and feeding mechanism of the present invention.

Fig. 10 is a schematic perspective view of the feeding frame of the present invention.

Fig. 11 is a schematic partial perspective view of the blanking control mechanism of the present invention.

FIG. 12 is a schematic view showing the connection of the pressing roller, the first gear and the feeding frame according to the present invention.

Fig. 13 is a partial perspective view of the roll feeding mechanism of the present invention.

FIG. 14 is a schematic view of the connection relationship between the rolling feeding mechanism and the regrinding feeding mechanism and the cover plate according to the present invention.

Fig. 15 is a schematic view of the connection relationship between the rolling feeding mechanism and the cover plate according to the present invention.

The meaning of the reference symbols in the figures: 1: mounting bracket, 2: drive motor, 21: rotating shaft, 3: pulverization housing, 31: filter screen, 4: feeding bin, 5: cover plate, 6: hammer head, 9: grinding mechanism, 91: guide material housing, 92: grinding shell, 93: servo motor, 94: conical abrasive segment, 10: airflow cutting mechanism, 101: mounting sleeve, 102: mounting cylinder, 103: bevel gear, 104: screw feed tray, 105: cutting steel wire, 106: intake duct, 107: discharge pipeline, 7: regrinding feeding mechanism, 71: first annular plate, 72: belt speed reduction group, 73: second annular plate, 74: feed frame, 741: feed port, 742: discharge port, 75: friction wheel, 751: connecting plate, 8: roll-in feeding mechanism, 81: pressure roller, 82: first gear, 83: ring gear, 84: second gear, 85: third gear, 86: outer ring gear, 11: control unloading mechanism, 111: control blanking plate, 112: swing block, 113: elastic member, 114: a material blocking block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The utility model provides a powder reducing mechanism with hierarchical function, as shown in fig. 1-5, including installing support 1, driving motor 2, pivot 21, the hammer mill subassembly, filter screen 31, grind mechanism 9 and air current cutting mechanism 10, driving motor 2 is installed on 1 top right side of installing support, be connected with pivot 21 on driving motor 2's the output shaft, be equipped with the hammer mill subassembly that is used for carrying out the hammer mill to the powder on installing support 1, be equipped with filter screen 31 on the hammer mill subassembly, be equipped with on the hammer mill subassembly and be used for carrying out the grinding mechanism 9 that grinds to the powder, be equipped with the air current cutting mechanism 10 that is used for carrying out the cutting to the powder on installing support 1.

As shown in fig. 1-3, the hammer mill subassembly is including crushing shell 3, feeding storehouse 4, tup 6 and apron 5, installing support 1 top intermediate junction has crushing shell 3, crushing shell 3 top rear side intercommunication has feeding storehouse 4, be connected with tup 6 in the pivot 21, tup 6 is located crushing shell 3, pivot 21 is rotatory to drive tup 6 rotatory, in order to carry out the hammer mill to the powder, crushing shell 3 left side rotary type is connected with apron 5, pivot 21 rotary type runs through grinding crushing shell 3 and apron 5, crushing shell 3 bottom is uncovered setting, in order to supply the powder discharge that the hammer mill finished, filter screen 31 is connected in crushing shell 3's opening, be used for filtering the powder after finishing the hammer mill.

As shown in fig. 4 and 5, the grinding mechanism 9 includes a material guiding casing 91, a grinding casing 92, a servo motor 93 and a tapered grinding block 94, an opening at the bottom of the crushing casing 3 is communicated with the material guiding casing 91, the bottom of the material guiding casing 91 is communicated with the grinding casing 92, the grinding casing 92 is inclined up and down, the inclined position is the discharge end of the grinding casing 92, the servo motor 93 is installed at the right side in the grinding casing 92, the tapered grinding block 94 is connected to an output shaft of the servo motor 93, the tapered grinding block 94 is located at the left side in the grinding casing 92, and the tapered grinding block 94 rotates to grind the powder after hammer grinding.

As shown in fig. 4 and 5, the air flow cutting mechanism 10 includes an installation sleeve 101, an installation cylinder 102, a bevel gear 103, a spiral feeding tray 104, a cutting steel wire 105, an air inlet pipeline 106 and a discharge pipeline 107, the installation sleeve 101 is connected to the left side of the installation support 1, the installation cylinder 102 is installed in the installation sleeve 101 in a sleeved manner, the grinding shell 92 penetrates through the installation sleeve 101 to be communicated with the lower portion of the installation cylinder 102, the spiral feeding tray 104 is connected to the installation cylinder 102 in a rotating manner, the top end of the spiral feeding tray 104 penetrates through the installation cylinder 102, the top end of the spiral feeding tray 104 and the rotating shaft 21 are both connected with the bevel gear 103, the two bevel gears 103 are meshed with each other, so that the rotating shaft 21 rotates to drive the spiral feeding tray 104 to rotate, the spiral feeding tray 104 rotates to convey ground powder, the lower portion of the installation cylinder 102 is communicated with the air inlet pipeline 106 for conveying high-pressure air flow into the installation cylinder 102, the cutting steel wire 105 is uniformly spaced and densely distributed on the spiral feeding tray 104 to cut powder in the conveying process, the upper portion of the installation cylinder 102 is connected with the discharge pipeline 107 for discharging powder after processing, the powder is discharged, the powder, the installation shell 91, the installation sleeve 91, and the installation sleeve 101 and the installation sleeve are arranged in a detachable manner, and the guide shell 102, and the installation sleeve 102, and the detachable arrangement are convenient for classifying arrangement for the powder.

When the device is needed to be used, powder can be poured into the feeding bin 4, the powder in the feeding bin 4 can enter the crushing shell 3, the driving motor 2 can be started to drive the rotating shaft 21 to rotate so as to drive the hammer head 6 to rotate to hammer-grind and crush the powder, the crushed powder can enter the guide shell 91 through the filter screen 31, the filter screen 31 can filter the powder, so that the incompletely crushed powder can enter the guide shell 91, the powder in the guide shell 91 can enter the grinding shell 92, the servo motor 93 can be started to drive the conical grinding block 94 to rotate at the moment, so as to grind the powder, secondary crushing of the powder is realized, the ground powder enters the mounting cylinder 102, the external high-pressure air flow can be injected into the mounting cylinder 102 through the air inlet pipeline 106 at the moment, the rotating shaft 21 can drive the spiral feeding disc 104 to rotate through the bevel gear 103 before, the high-pressure air flow in the mounting cylinder 102 blows the powder to move along the spiral feeding disc 104 at a high speed, meanwhile, the spiral feeding disc 104 can drive the cutting steel wire to rotate and convey the powder, the steel wire 105 can be repeatedly collided with the cutting steel wire 105, thereby, the crushing steel wire can better collect the powder after the steel wire crushing effect is repeatedly sucked, and the steel wire collecting device can collect the crushed powder, and the crushed powder, the steel wire can be better.

In the actual use process, according to the thickness of the required powder, the combined application of the single hammer mill component, the hammer mill component and the grinding mechanism 9 and the combined application of the hammer mill component, the grinding mechanism 9 and the airflow cutting mechanism 10 can be selectively applied for use, so as to realize the effect of grading treatment on powder crushing, and meanwhile, according to the actual use condition, the powder collecting device is selectively communicated with the opening of the crushing shell 3, the discharge end of the grinding shell 92 and the discharge pipeline 107.

Example 2

Based on embodiment 1, as shown in fig. 1, 6, 7, 8, 9, 10 and 14, the apparatus further includes a regrinding feeding mechanism 7, the regrinding feeding mechanism 7 includes a first annular plate 71, a belt decelerating group 72, a second annular plate 73, a feeding frame 74, a friction wheel 75 and a connecting plate 751, the first annular plate 71 is rotatably connected to the right side inside the crushing shell 3, the connecting plate 751 is connected to the right side outside the crushing shell 3, the friction wheel 75 is rotatably connected to the connecting plate 751, the friction wheel 75 penetrates into the crushing shell 3, the friction wheel 75 contacts with the first annular plate 71 to allow the friction wheel 75 to rotate the first annular plate 71, the belt decelerating group 72 is disposed between the friction wheel 75 and the rotating shaft 21 to allow the friction wheel 75 to rotate, the second annular plate 73 is rotatably connected to the right side of the cover 5, a feeding frame 74 is connected between the second annular plate 73 and the first annular plate 71, the feeding frame 74 is rotatably scooped into the incompletely crushed powder and is fed to the upper side of the hammer head 6, so that the incompletely crushed powder is completely ground by the powder 6, the feeding frame 742, and the feeding frame 74 is disposed above the feeding port 741, and the feeding port 741 and the feeding frame 74 is disposed above the discharging port 741, and the discharging port is disposed above the discharging port 741 for discharging port of the rotary feeding frame 74, and the rotary feeding head.

The friction wheel 75 is driven to rotate by the belt speed reducing group 72 when the rotating shaft 21 rotates, the friction wheel 75 rotates to drive the feeding frame 74 to rotate through the first annular plate 71, the feeding frame 74 can shovel the incompletely crushed powder on the filter screen 31 through the feeding hole 741 in the rotating process, when the feeding frame 74 rotates to the upper portion in the crushing shell 3, the discharging hole 742 of the feeding frame 74 faces the hammer head 6, and at the moment, the feeding frame 74 can dump the incompletely crushed powder in the feeding frame to the hammer head 6 to perform hammer grinding again, and the steps are repeated, so that the incompletely crushed powder can be automatically fed into the regrinding.

As shown in fig. 1, 2, 12, 13, 14 and 15, the roll-in feeding mechanism 8 further includes a roll-in feeding mechanism 8, the roll-in feeding mechanism 8 includes a press roller 81, a first gear 82, an inner gear 83, a second gear 84, a third gear 85 and an outer gear 86, the top of the feeding frame 74 is rotatably connected with the two press rollers 81, the two press rollers 81 block the discharge hole 742, so that the powder discharged along the discharge hole 742 passes through the press roller 81, the press roller 81 is connected with the first gear 82, the two first gears 82 are engaged with each other, the left side of the cover plate 5 is connected with the inner gear 83, the rotating shaft 21 is connected with the second gear 84, the crushing shell 3 is rotatably connected with the third gear 85, the second gear 84 is in transmission connection with the inner gear 83 through the third gear 85, the right side of the cover plate 5 is connected with the outer gear 86, the outer gear 86 is engaged with one of the first gears 82, so that the rotating shaft 21 drives the two press rollers 81 to rotate when the press roller 81 rotates, and the press roller 81 can roll the powder passing through the press roller 81 when the press roller 81 rotates.

The rotating shaft 21 can drive the cover plate 5 to rotate through the first gear 82, the second gear 84 and the inner gear ring 83 when rotating, the cover plate 5 rotates to drive the pressing roller 81 to rotate through the outer gear ring 86 and the third gear 85, and therefore when the powder is poured in the material conveying frame 74, the pressing roller 81 rotates to roll the powder, the powder is milled in an auxiliary mode, and the crushing effect is improved.

As shown in fig. 1, fig. 2, fig. 8 and fig. 11, the pulverizer further includes a controlled blanking mechanism 11, the controlled blanking mechanism 11 includes a controlled blanking plate 111, a swinging block 112, an elastic member 113 and a material blocking block 114, the lower portion of the feeding bin 4 is slidably connected with the controlled blanking plate 111, blanking ports are spaced at the rear side of the controlled blanking plate 111, the front side of the controlled blanking plate 111 is rotatably connected with the swinging block 112, the feeding frame 74 can push the swinging block 112 to drive the controlled blanking plate 111 to move when rotating, the blanking ports can be aligned with the feeding bin 4 after the controlled blanking plate 111 moves, so that the feeding bin 4 carries out blanking, the swinging block 112 is slidably matched with the pulverizing casing 3, two elastic members 113 are connected between the swinging block 112 and the feeding bin 4 to reset the swinging block 112 and the controlled blanking plate 111 through elasticity, and the front side of the top of the pulverizing casing 3 is connected with the material blocking block 114 for blocking the controlled blanking plate 111.

Initially, the feeding plate 111 is controlled to block the lower part of the feeding bin 4, the feeding frame 74 can contact with the swinging block 112 and push the swinging block 112 to move along the crushing shell 3 when rotating, the swinging block 112 drives the feeding plate 111 to move together when moving, the elastic piece 113 is stretched, the position, provided with the blanking port, of the feeding frame 111 is located at the lower part of the feeding bin 4 after the feeding frame 74 moves, powder in the feeding bin 4 can enter the crushing shell 3 along the blanking port at the moment, so that blanking of the feeding bin 4 is performed, the feeding plate 111 is controlled not to move any more when the feeding frame 111 is controlled to move to be in contact with the material blocking block 114, the feeding frame 74 continues to move to extrude the swinging block 112 to swing, and when the feeding frame 74 moves to no longer extrude the swinging block 112, the swinging block 112 and the feeding frame 111 reset under the action of the elastic piece 113, so that blanking of the feeding bin 4 can be automatically controlled to prevent the situation that the blanking speed is too fast and the crushing of the powder is influenced.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a powder reducing mechanism with hierarchical function, is including installing support (1), driving motor (2), pivot (21) and hammer mill subassembly, and driving motor (2) are installed to installing support (1) top one side, are connected with pivot (21) on the output shaft of driving motor (2), are equipped with on installing support (1) to be used for carrying out the hammer mill subassembly that the hammer milled, characterized by to the powder: the powder grinding machine is characterized by further comprising a filter screen (31), a grinding mechanism (9) and an airflow cutting mechanism (10), wherein the filter screen (31) is arranged on the hammer grinding assembly, the grinding mechanism (9) used for grinding the powder is arranged on the hammer grinding assembly, and the airflow cutting mechanism (10) used for cutting the powder is arranged on the mounting bracket (1).

2. The powder pulverizing apparatus having a classifying function according to claim 1, wherein: hammer mill subassembly is including crushing shell (3), feeding storehouse (4), tup (6) and apron (5), installing support (1) top is connected with crushing shell (3), crushing shell (3) top intercommunication has feeding storehouse (4), be connected with tup (6) on pivot (21), tup (6) are located crushing shell (3), pivot (21) rotation drive tup (6) are rotatory, in order to carry out the hammer mill to the powder, crushing shell (3) one side rotary type is connected with apron (5), pivot (21) rotary type runs through grinding crushing shell (3) and apron (5), crushing shell (3) bottom is uncovered setting, in order to supply the powder discharge that the hammer mill finished, filter screen (31) are connected in the opening department of crushing shell (3), be used for filtering the powder after finishing the hammer mill.

3. The powder pulverizing apparatus having a classifying function according to claim 2, wherein: grind mechanism (9) including guide casing (91), grind casing (92), servo motor (93) and toper grinding block (94), crushing shell (3) bottom uncovered department intercommunication has guide casing (91), guide casing (91) bottom intercommunication has grinding casing (92), grinding casing (92) are the setting of inclining down, and the position of downward sloping is the discharge end of grinding casing (92), grind casing (92) and lean on last position to install servo motor (93), be connected with toper grinding block (94) on the output shaft of servo motor (93), toper grinding block (94) are located and grind casing (92) and lean on lower position, toper grinding block (94) are rotatory in order to grind the powder after the hammer mill.

4. The powder pulverizing apparatus having a classifying function according to claim 3, wherein: the air flow cutting mechanism (10) comprises an installation sleeve (101), an installation cylinder (102), bevel gears (103), a spiral feeding disc (104), a cutting steel wire (105), an air inlet pipeline (106) and a discharge pipeline (107), the installation sleeve (101) is connected at a position, close to the discharge end of a grinding shell (92), of an installation support (1), the installation cylinder (102) is sleeved in the installation sleeve (101), the grinding shell (92) penetrates through the installation sleeve (101) to be communicated with the inner lower portion of the installation cylinder (102), the spiral feeding disc (104) is connected in a rotating mode in the installation cylinder (102), the installation cylinder (102) penetrates through the top end of the spiral feeding disc (104), the bevel gears (103) are connected to the top end of the spiral feeding disc (104) and a rotating shaft (21), the two bevel gears (103) are meshed with each other, the rotating shaft (21) rotates to drive the spiral feeding disc (104), the spiral feeding disc (104) rotates to convey ground powder, the air inlet pipeline (106) is communicated to the lower portion of the installation cylinder (102) and is used for conveying high-pressure air into the installation cylinder (102), the upper portion of the cutting steel wire (105) is uniformly distributed on the spiral feeding disc (104), and the upper portion of the cutting steel wire (107) is densely arranged in the process, used for discharging the treated powder.

5. The powder crushing apparatus with a classification function according to claim 4, wherein: the crushing shell (3) and the material guide shell (91), the material guide shell (91) and the installation cylinder (102) and the material guide shell (91) and the installation sleeve (101) are detachably arranged, so that the powder can be crushed in a grading manner.

6. The powder pulverizing apparatus having a classifying function according to claim 5, wherein: still including regrinding feeding mechanism (7), regrinding feeding mechanism (7) is including first annular plate (71), belt speed reduction group (72), second annular plate (73), pay-off frame (74), friction wheel (75) and connecting plate (751), one side rotary type that keeps away from apron (5) in crushing shell (3) is connected with first annular plate (71), one side that is close to first annular plate (71) outside crushing shell (3) is connected with connecting plate (751), the last rotation type of connecting plate (751) is connected with friction wheel (75), friction wheel (75) penetrate crushing shell in (3), friction wheel (75) and first annular plate (71) contact, so that friction wheel (75) drive first annular plate (71) rotatory, be equipped with belt speed reduction group (72) between friction wheel (75) and pivot (21), in order to drive friction wheel (75) rotatory, one side rotary type of apron (5) inwards is connected with second annular plate (73), be connected with between second annular plate (73) and first annular plate (71) pay-off frame (74), in order to make the powder body (6) that the rotary shovel thoroughly grinds the tup, carry out not smash the tup, carry out the top of smashing.

7. The powder pulverizing apparatus having a classifying function according to claim 6, wherein: the feeding frame (74) is respectively provided with a feeding hole (741) and a discharging hole (742), the feeding hole (741) is used for the feeding frame (74) to scoop up powder in the rotating process, and the discharging hole (742) is used for discharging the powder when the feeding frame (74) rotates to the position above the hammer head (6).

8. The powder pulverizing apparatus having a classifying function according to claim 7, wherein: the automatic powder feeding device is characterized by further comprising a rolling feeding mechanism (8), the rolling feeding mechanism (8) comprises a pressing roller (81), a first gear (82), an inner gear ring (83), a second gear (84), a third gear (85) and an outer gear ring (86), two pressing rollers (81) are rotatably connected to a position, close to a discharge hole (742), of a feeding frame (74), the two pressing rollers (81) block the discharge hole (742), so that powder discharged along the discharge hole (742) can pass through the pressing roller (81), the first gear (82) is connected to the pressing roller (81), the two first gears (82) are meshed with each other, the inner gear ring (83) is connected to one outwards side of the cover plate (5), a second gear (84) is connected to the rotating shaft (21), the crushing shell (3) is rotatably connected with the third gear (85), the second gear (84) is in transmission connection with the inner gear ring (83) through the third gear (85), the outer gear ring (86) is connected to one inwards side of the cover plate (5), the outer gear ring (86) is meshed with one of the first gear (82), so that the rotating shaft (21) drives the pressing roller (81) to rotate, and the pressing roller (81) can rotate the powder.

9. The powder crushing apparatus with a classifying function according to claim 8, wherein: the automatic feeding device is characterized by further comprising a control blanking mechanism (11), the control blanking mechanism (11) comprises a control blanking plate (111), a swinging block (112), an elastic piece (113) and a material blocking block (114), the position, close to the crushing shell (3), of the feeding bin (4) is connected with the control blanking plate (111) in a sliding mode, blanking ports are formed in one side of the control blanking plate (111) at intervals, the swinging block (112) is connected to one side of the control blanking plate (111) in a rotating mode, the feeding frame (74) can push the swinging block (112) to drive the control blanking plate (111) to move when rotating, the blanking ports can be aligned to the feeding bin (4) after the control blanking plate (111) moves, so that the feeding bin (4) can carry out blanking, the swinging block (112) is in sliding fit with the crushing shell (3), the elastic piece (113) is connected between the swinging block (112) and the feeding bin (4), the swinging block (112) and the control blanking plate (111) can reset through elasticity, and the material blocking block (114) is connected to the crushing shell (3) and used for blocking the control blanking plate (111).