CN215612094U - Air-float impact type superfine crusher - Google Patents

Air-float impact type superfine crusher Download PDF

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Publication number
CN215612094U
CN215612094U CN202120905662.9U CN202120905662U CN215612094U CN 215612094 U CN215612094 U CN 215612094U CN 202120905662 U CN202120905662 U CN 202120905662U CN 215612094 U CN215612094 U CN 215612094U
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rotary
blade
impact
air
turntable
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CN202120905662.9U
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Chinese (zh)
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白允哲
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Pong Hak Woon
Feng Xue-Wen
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Pong Hak Woon
Feng Xue-Wen
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Abstract

The utility model relates to an air-floating impact type ultrafine grinder. The air-flotation impact type ultrafine pulverizer comprises a main feed inlet (1), a discharge outlet (2), an auxiliary feed inlet (3), a rotary impact blade group (5), a fixed blade (6), a screen opening (7), a rotary table (9), an air supply blade (10), a powder blocking ring (12), a rotary shaft (14), a chassis (15), a cavity (18) and a cover disc (19), and is characterized in that the rotary impact blade group (5) comprises a rotary impact blade (51) and a rotary impact blade fixing piece (52), and the rotary impact blade fixing piece (52) is arranged at the edge of the rotary table (9) in a manner of forming an angle of 40-60 degrees with the rotary table (9); the turntable (9) is provided with a feeding blade (8) and an upper turntable (4); the auxiliary feed opening (3) is formed in the cover disc (19) and is located on the side of the rotary impact blade (51) in a deviating mode.

Description

Air-float impact type superfine crusher
Technical Field
The utility model relates to an air-floating impact type ultrafine grinder.
Background
At present, only one device with the function of producing ultrafine powder at home and abroad has various functions, and is widely applied to agriculture, food, pharmacy, building materials, mining industry and the like. On the one hand, the ultrafine pulverizer has a complicated structure according to its use. Therefore, the development of a superfine pulverizer which has a simple structure and is multipurpose is an important problem at present.
The ultrafine pulverizer is generally classified into a ball mill type, an air flow type, a mechanical impact type ultrafine pulverizer, and the like.
The ball-milling type ultrafine pulverizer pulverizes powder by collision of solid grinding balls, has high requirements on the inner surface of a cavity and grinding ball materials, generates heat in the pulverizing process, and has low purity of pulverized materials, low production rate and frequent maintenance.
The high-speed airflow in the airflow type superfine pulverizer increases the kinetic energy of powder, and the powder is crushed by collision, so that the defects can be overcome, but the airflow type superfine pulverizer has a complex structure and is difficult to manufacture.
The mechanical impact type ultrafine pulverizer uses impact elements with high-speed motion such as rods, blades, hammers and the like to violently impact objects to be pulverized, so that particles of the objects collide and are pulverized. But the large-particle crushed materials need to be recycled and then sent to the feeding hole for repeated crushing for a plurality of times to obtain ideal crushed materials, and the efficiency is not high.
The prior art has the defects of complex structure, difficult manufacturing and other technical problems.
In particular, most of the existing ultrafine crushers are high-speed ultrafine crushers, and have various disadvantages in that the machine body needs to be fixed on the ground in order to prevent vibration of the machine body, and additional parts such as a belt, a belt pulley, and the like are required. In addition, the heat generated during the pulverization denatures the pulverized material, causing harsh noise harmful to health.
The utility model aims to provide a superfine crusher with a simple structure, which is different from a high-speed superfine crusher, can be used for superfine crushing hard and elastic materials to be crushed, adhesive and viscous materials to be crushed and long fiber materials to be crushed by rotating at a low speed (1750rpm), and can be used in the aspects of agriculture, food, pharmacy, building materials and mining industry.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an air-flotation impact type ultrafine grinder which comprises a main feeding hole, a discharging hole, an auxiliary feeding hole, a rotary impact blade set, a fixed blade, a screen mesh opening, a feeding blade, a rotary disc, an air supply blade, a powder blocking ring, a rotary shaft, a base plate, a cavity, a cover disc and the like.
The rotary impact blade set comprises a rotary impact blade and a rotary impact blade fixing piece, and the rotary impact blade fixing piece is arranged on the edge of the rotary table in a mode of forming an angle (beta angle) of 40-60 degrees with the rotary table.
The turntable is provided with a feeding blade and an upper turntable; the auxiliary feed inlet is formed in the cover disc and is eccentrically located on the side of the rotary impact blade.
The clearance between the rotary impact blade and the fixed blade is 3-10 mm.
The clearance of carousel with fixed blade is 8 ~ 15mm, go up the carousel diameter ratio 100 ~ 300mm is little to the carousel.
The rotating shaft for arranging the rotating disc comprises a shaft sleeve and an angle screw, and is welded and jointed with the rotating disc.
The feeding blades are provided with smooth curved surfaces, and the number of the feeding blades is 4-12.
Drawings
Fig. 1 is a structural view of an air flotation impact type ultrafine pulverizer of the present invention.
Fig. 2 shows a swivel assembled from a turntable, an upper turntable, a set of rotating impact blades, air supply blades, and supply blades.
Fig. 3 is a detailed view of the rotary impact blade set.
Fig. 4 is a structural view of a rotor disk, an upper rotor disk, air supply blades, and supply blades of the rotor.
Fig. 5 is a detailed view of the rotor shaft.
Description of the reference numerals
1: main feed inlet 2: discharge port
3: auxiliary feed port 4: upper rotating disc
5: rotational impact blade set 51: rotary impact blade
52: rotary impact blade fixing piece 53: support post
54: support 6: fixed blade
7: screen openings 8: feeding blade
9: the rotating disc 10: air supply blade
11: the guide ring 12: powder blocking ring
13: motor shaft 14: rotor shaft
141: the shaft sleeve 142: angle screw
15: the chassis 16: emergency exit
17: the frame 18: cavity body
19: cover plate
Detailed Description
The structure of the air-floating impact type ultrafine pulverizer of the present invention is shown in fig. 1.
The utility model relates to an air-flotation impact type ultrafine grinder which comprises a main feeding hole, a discharging hole, an auxiliary feeding hole, an upper rotary table, a rotary impact blade group, a fixed blade, a screen mesh opening, a feeding blade, a rotary table, an air supply blade, a guide ring, a powder blocking ring, a motor rotating shaft, a base plate, an emergency outlet, a rack, a cavity, a cover plate and the like. In the air-flotation impact type ultrafine grinder, the materials to be ground are suspended by wind power, collide with the blades and simultaneously collide with each other to be ground.
The cover disc of the air floatation impact type ultrafine pulverizer is provided with a main feed inlet, an auxiliary feed inlet and a discharge outlet, a cavity is provided with a fixed blade, a screen mesh opening and an emergency outlet, the center of the chassis is provided with a powder blocking ring, the rack is provided with a chassis and a motor, a rotating body is arranged in the cavity and comprises a rotating disc, an air supply blade, a feed blade, an upper rotating disc, a rotating body shaft and a guide ring.
The rotary impact blade set comprises a rotary impact blade and a rotary impact blade fixing piece, and the rotary impact blade fixing piece is arranged on the edge of the rotary table in a mode of forming an angle (beta angle) of 40-60 degrees with the rotary table.
The rotary impact blade fixing piece is coupled to two support columns fixed to the turntable and the upper turntable edge, respectively, and more specifically, one end of one support column is perpendicularly coupled to the turntable edge, one end of the other support column is coupled to the upper turntable edge, and the other ends of the two support columns are coupled to each other and also coupled to the other end of the impact rotary blade fixing piece.
The rotary impact blade fixing piece and the rotary plate are arranged at the edge of the rotary plate in a mode of 40-60 degrees (beta angle), the two supporting columns are arranged for firmly fixing the rotary impact blade fixing piece, and the rotary impact blade fixing piece supports the rotary impact blade which is greatly subjected to impact load of crushed objects.
The rotary table is provided with a feed blade, the feed blade is provided with an upper rotary table, and the lower side of the rotary table is suspended with an air supply blade.
Conventionally, when a livestock feed such as dried grass (corn stalk, corn cob, beanstalk, wheat straw, blighted rice straw, etc.) is crushed, it is cut off and then fed to a feed inlet, but in the present invention, an auxiliary feed inlet is additionally provided on a cover plate, and the crushed material can be simultaneously cut off and crushed, and discharged through a screen opening. The auxiliary feed inlet is arranged on the cover disc and is eccentrically positioned above the rotary impact blade, and hay is cut off and crushed by the rotary impact blade.
The clearance of rotatory impact blade and fixed blade is 3 ~ 10mm, and the clearance of carousel and fixed blade is 8 ~ 15mm, and the carousel diameter ratio of going up is little 100 ~ 300 mm.
The particle size reduction can be achieved by properly adjusting the gap between the rotary impact blade and the fixed blade.
If the gap is too small, the rotating impact blade set inclines towards the fixed blade when the pulverizer works, and the rotating impact blade set touches the fixed blade, so that strong noise and heat are generated.
The proper wind force of the air supply blades suspended below the rotary disc can be ensured only by reasonably adjusting the gap between the rotary disc and the fixed blade. The air flow process at the air supply blade is as follows: when the motor rotates, outside air is sucked into the cavity through a gap between the motor rotating shaft and the powder blocking ring and blown to the fixed blade through the air supply blades, so that the crushed materials are suspended.
The upper rotating disc and the feeding blades form a feeding channel together, and the diameter of the feeding channel is 100-300 mm smaller than that of the rotating disc. If the diameter of the upper rotating disk is smaller than 300mm, the material to be crushed cannot be sufficiently scattered to the fixed blade and is scattered on the rotating disk.
The fixed blades are fixed on the inner side surface of the cavity, and the number of the fixed blades is increased in proportion to the size of the cavity, and is generally hundreds.
The rotating body shaft comprises a shaft sleeve and an angle screw, and is welded and connected with the rotating disc. The sleeve is a part engaged with the motor shaft. The angle screw is arranged for conveniently separating the rotating body and the motor rotating shaft, namely if the motor or the rotating body breaks down, the rotating body needs to be separated from the motor rotating shaft, a tool with the same shape as the angle turnbuckle can enter the angle screw, and then the rotating body is easily separated from the motor rotating shaft.
The feeding blades have smooth curved surfaces, and 4-12 feeding blades are symmetrically arranged with the rotor shaft as the center. The number of feed vanes depends on the motor power, which is greater the power. The feed vanes uniformly sprinkle the matter to be crushed entering from the main feed inlet to the fixed blade by centrifugal force.
If the powder blocking ring is not arranged in the middle of the chassis, some crushed materials falling to the chassis leak out of the center of the chassis and are accumulated on motor parts including a motor bearing to prevent the motor from rotating.
The guide ring guides the material to be pulverized entering from the main feed opening to the feed vane inlet.
The specific working principle of the air-flotation impact type ultrafine grinder is as follows: the material to be crushed enters from the main feed inlet, is distributed to the inlet of the feed blades through the guide ring, is scattered to the fixed blade through the feed blade space by centrifugal force, is suspended by wind force of the air supply blades suspended below the rotary table, collides with the fixed blade and the rotary impact blade, and is crushed by mutual collision. The pulverized material is uniformly distributed in the pulverizing space between the fixed blade and the rotary impact blade and pulverized, wherein the light ultra-fine pulverized material is discharged through the discharge port.
As shown in fig. 1, 2, and 3, the rotary impact blade group 5 includes a rotary impact blade 51, a rotary impact blade fixing piece 52, and support posts 53 and 54. The rotary impact blade fixing piece 52 is fixedly welded with the rotary impact blade 51, that is, the rotary impact blade fixing piece 52, the support 53 and the end of the support 54 are fixedly welded, and then the rotary impact blade 51 is fixedly welded on the rotary impact blade fixing piece 52. At this time, the gap between the rotary impact blade 51 and the fixed blade 6 is 3 to 10 mm.
The diameters of the turntable 9 and the cavity 18 of the air-floating impact type ultrafine pulverizer according to the power of the motor are shown in table 1.
TABLE 1. diameter of the turntable 9 and the cavity 18 according to the motor power
Motor power (kW) Turntable diameter (mm) Diameter of cavity (mm)
14 800~950 900~1000
20 850~1000 950~1050
24 950~1100 1050~1150
28 1000~1150 1100~1200
40 1150~1300 1250~1350
50 1250~1450 1350~1500
65 1400~1600 1500~1650
In the utility model, when the motor is a four-pole motor and the power is 14kW, the optimal diameter of the turntable 9 is 50mm, and the diameter of the cavity 18 is 900 mm.
The clearance between the edge of the rotary table 9 and the fixed blade 6 is 8-15 mm, the clearance between the air supply blade 10 suspended on the lower side of the rotary table 9 and the chassis 15 is 10-15 mm, and the proper wind power of the air supply blade 10 can be ensured only by reasonably adjusting the clearances. The distance between the rotary disk 9 and the upper rotary disk 4 (the height of the feeding blades 8) is generally 30-50 mm, and the larger the motor power is, the larger the distance is. Conventionally, the thickness of the turntable 9 is 5mm or more, but in the present invention, the thickness of the turntable 9 is 5mm or less and the thickness of the upper turn table 4 is 3mm or less, so that the weight of the entire swivel body is reduced.
As shown in fig. 1, the powder guard 12 is provided at the center of the chassis 15, and has an inner diameter 2 to 3 times the outer diameter of the sleeve 141 of the rotor shaft 14 as large as the diameter of the center of the chassis 15. The guide ring 11 guides the material to be pulverized entering from the main feed opening 1 to the inlet of the feed vanes 8.
The auxiliary feed port 3 is provided in the lid plate 19 and is different from the main feed port 1, and is offset to the rotary impact blade 51 side, so that the hay is fed from the auxiliary feed port 3 to the rotary impact blade 51 side and is cut and pulverized. The crushed hay is coarse crushed hay and is discharged through screen port 7.
As shown in fig. 4, a blowing blade 10 is fixed to the lower side of the rotary table 9, and the feed blades 8 are symmetrically arranged on the rotary table 9 with the rotary shaft as the center, and the feed blades 8 have a smooth curved surface. The upper rotary table 4 is arranged on the feeding blade 8, and the diameter of the upper rotary table is about 100-300 mm smaller than that of the rotary table 9.
As shown in fig. 5, the rotor shaft 14 includes a bushing 141 and a corner screw 142, and the bushing 141 is welded to the corner screw 142. The shaft sleeve 141 is provided with a key groove to be key-coupled with the motor shaft 13. The rotor shaft 14 is also welded to the turntable 9.
Table 2 shows the results of particle size measurement when dolomite was subjected to ultrafine grinding.
TABLE 2 results of particle size measurement

Claims (5)

1. An air-flotation impact type ultrafine pulverizer comprises a main feed inlet (1), a discharge outlet (2), an auxiliary feed inlet (3), a rotary impact blade group (5), a fixed blade (6), a screen mesh opening (7), a rotary table (9), an air supply blade (10), a powder blocking ring (12), a rotary body shaft (14), a base plate (15), a cavity (18) and a cover plate (19),
the rotary impact blade set (5) comprises a rotary impact blade (51) and a rotary impact blade fixing piece (52), and the rotary impact blade fixing piece (52) is arranged at the edge of the rotary table (9) in a manner of forming an angle of 40-60 degrees with the rotary table (9); the turntable (9) is provided with a feeding blade (8) and an upper turntable (4); the auxiliary feed opening (3) is formed in the cover disc (19) and is located on the side of the rotary impact blade (51) in a deviating mode.
2. The air-floating impact type ultrafine pulverizer as claimed in claim 1,
the clearance between the rotary impact blade (51) and the fixed blade (6) is 3-10 mm.
3. The air-floating impact type ultrafine pulverizer as claimed in claim 1,
the clearance between the rotary table (9) and the fixed blade (6) is 8-15 mm, and the diameter of the upper rotary table (4) is 100-300 mm smaller than that of the rotary table (9).
4. The air-floating impact type ultrafine pulverizer as claimed in claim 1,
the rotary body shaft (14) for arranging the rotary disc (9) comprises a shaft sleeve (141) and an angle screw (142), and is welded and jointed with the rotary disc (9).
5. The air-bearing impact type ultrafine pulverizer as claimed in claim 1, wherein said feeding vanes (8) have a smooth curved surface and the number thereof is 4 to 12.
CN202120905662.9U 2021-04-28 2021-04-28 Air-float impact type superfine crusher Active CN215612094U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120905662.9U CN215612094U (en) 2021-04-28 2021-04-28 Air-float impact type superfine crusher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120905662.9U CN215612094U (en) 2021-04-28 2021-04-28 Air-float impact type superfine crusher

Publications (1)

Publication Number Publication Date
CN215612094U true CN215612094U (en) 2022-01-25

Family

ID=79937148

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120905662.9U Active CN215612094U (en) 2021-04-28 2021-04-28 Air-float impact type superfine crusher

Country Status (1)

Country Link
CN (1) CN215612094U (en)

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