CN107670966B - Rotary powder screening machine - Google Patents
Rotary powder screening machine Download PDFInfo
- Publication number
- CN107670966B CN107670966B CN201711016962.6A CN201711016962A CN107670966B CN 107670966 B CN107670966 B CN 107670966B CN 201711016962 A CN201711016962 A CN 201711016962A CN 107670966 B CN107670966 B CN 107670966B
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- screen
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- 239000000843 powder Substances 0.000 title claims abstract description 264
- 238000012216 screening Methods 0.000 title claims abstract description 91
- 238000007599 discharging Methods 0.000 claims abstract description 43
- 238000003860 storage Methods 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 239000004744 fabric Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000007873 sieving Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 10
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the technical field of screening equipment, in particular to a rotary powder screening machine. The invention comprises a frame, a rotary powder screening box and a fine powder storage box, wherein the rotary powder screening box is arranged on the frame, a fine powder discharging hole is formed in the top or the side wall of the rotary powder screening box, the fine powder discharging hole is connected with the fine powder storage box through a pipeline, and a quick discharging mechanism which can enable screened fine powder to be transferred through the fine powder discharging hole and stored in the fine powder storage box is further arranged in the rotary powder screening box. The invention adopts the rotary separation technology, has large flow for treating and recycling the powder and high working efficiency, and is provided with the quick discharging mechanism, so that the discharging process is quick and thorough, the discharging time is saved, and the loss caused by the residue of the powder in the powder screening box is reduced.
Description
Technical Field
The invention relates to the technical field of screening equipment, in particular to a rotary powder screening machine.
Background
The screening is to screen the powder with the mesh number of the screen with the screen, and leave the powder with the mesh number larger than the screen in the screen so as to achieve the purpose of separating the powder with different thickness. Powder sieving machines are widely used in the industries of food, pharmacy and chemical industry, but the powder sieving machines adopted in the prior art generally have the problems of low production efficiency and the like.
The problem is also explored in long-term production and life practice, for example, chinese patent application discloses a quick-dismantling rotary powder sieving machine [ application number: 201210244457.8 the invention application includes fixed plate I, feeding room, sieve powder room and coarse fodder discharge chamber, feeding room and coarse fodder discharge chamber are connected with sieve powder room respectively, be provided with rotatory support II on the fixed plate II, fixed plate II bottom is provided with movable support I, rotatory support II top is provided with sieve powder bearing frame, sieve powder bearing frame is connected with the coarse fodder discharge chamber, be provided with sieve powder motor on the sieve powder bearing frame, sieve powder axle is worn to be equipped with in the coarse fodder discharge chamber, sieve powder axle one end is connected with sieve powder motor output, sieve powder axle other end stretches into in the sieve powder room.
The invention improves the powder screening efficiency by adopting the method of rotating the powder screening, but the powder screening machine provided by the invention has the problems that the discharging is not thorough during discharging, a large amount of powder is left in a powder screening chamber, and the discharging is slow.
Disclosure of Invention
The invention aims to solve the problems and provide a rotary powder screening machine.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a rotation type powder sieving machine, includes the frame, and rotation sieve powder case and fine powder bin are arranged in the frame, rotation sieve powder case is opened at top or lateral wall has a fine powder discharge gate, fine powder discharge gate passes through the pipe connection with the fine powder bin, rotation sieve powder incasement still is equipped with the quick discharge mechanism that enables the fine powder that sieves and shift and store in the fine powder bin through the fine powder discharge gate.
In the rotary powder screening machine, the quick discharging mechanism comprises a fine powder collecting tank which is arranged at the bottom of the rotary powder screening box and used for collecting screened fine powder, the fine powder collecting tank is connected with the inner surface of the rotary powder screening box through a smooth inclined surface, the quick discharging mechanism further comprises a fine powder conveying pipe and an air compressor, one end of the fine powder conveying pipe is fixedly connected with a fine powder discharging hole, a pipe opening at the other end of the fine powder conveying pipe is arranged in the fine powder collecting tank, an air outlet of the air compressor is opposite to the pipe opening, air is extruded from the air outlet of the air compressor, fine powder in the fine powder collecting tank is driven to enter the fine powder storage box through the fine powder conveying pipe and the fine powder discharging hole for storage, and a negative pressure powder sucking and feeding mechanism is connected between the fine powder discharging hole and the fine powder storage box.
In the rotary powder screening machine, the rotary powder screening box top is provided with the rotary driving motor and the motor fixing block, one end of the motor fixing block is fixedly connected with the rotary powder screening box top, the other end of the motor fixing block is fixedly connected with the rotary driving motor, one end of the rotary shaft penetrates through the motor fixing block and then is connected to the rotary driving motor, the axis of the rotary shaft coincides with the axis of the rotary powder screening box, a screening assembly capable of synchronously rotating with the rotary shaft is further arranged in the rotary powder screening box, the screening assembly is sleeved on the rotary shaft, the negative pressure powder suction feeding mechanism comprises a worm feeding box connected with the fine powder discharging port and the fine powder storage box and a feeding motor connected to the worm feeding box, and the top of the worm feeding box is connected with a vacuum tube.
In the rotary powder screening machine, a bearing is further arranged in the motor fixing block, one end of the rotary shaft penetrates through the bearing to be fixedly connected with the rotary driving motor, the outer ring of the bearing is fixedly connected with the motor fixing block, the inner ring of the bearing is fixedly connected with the rotary shaft, the feed inlet of the worm feeding box is connected with the fine powder discharge port, the discharge port of the worm feeding box is connected with the fine powder storage box, and the vacuum tube is connected with the vacuum pump.
In the rotary powder screening machine, the screening assembly comprises a cylindrical rotating rod sleeve matched with the rotating shaft, a plurality of screen support frames are fixedly connected to the side wall of the rotating rod sleeve, and one end, far away from the rotating rod sleeve, of each screen support frame is fixedly connected with the screen.
In the rotary powder screening machine, the screen cloth includes first screen cloth, second screen cloth and top screen cloth, and first screen cloth is more close to the sieve mesh aperture of swivelling lever cover and first screen cloth than the second screen cloth and is greater than the sieve mesh aperture of second screen cloth, the top screen cloth is located the one end that the subassembly that sieves is close to rotation driving motor, and top screen cloth and second screen cloth fixed connection and top screen cloth's outward flange and the inner edge laminating of second screen cloth, and the sieve mesh aperture of top screen cloth equals with the sieve mesh aperture size of second screen cloth, and the rotation axis runs through top screen cloth and swivelling lever cover mutually support.
In the rotary powder sieving machine, the inner surface of the rotary rod sleeve is also provided with a plurality of square key holes.
In the rotary powder sieving machine, the rotary shaft is fixedly connected with a plurality of blades, the blades are divided into a plurality of layers along the axial direction of the rotary shaft, and each layer of blades are uniformly distributed along the circumferential direction of the rotary shaft.
In the rotary powder screening machine, the blades comprise small blade ends fixedly connected with the rotating shaft and large blade ends far away from the rotating shaft, the large blade ends comprise bottom ends and top ends, and the height of the bottom ends in the vertical direction is lower than that of the top ends and the bottom ends are connected with the top ends through cambered surfaces.
In the rotary powder screening machine, a feeding port is formed in the top of the rotary powder screening box, the feeding port is communicated with the screening assembly through a feeding pipeline, and an auger machine is further arranged on the feeding pipeline.
Compared with the prior art, the invention has the advantages that:
1. the invention is provided with the quick discharging mechanism, so that the discharging process is quick and thorough, the discharging time is saved, and the loss caused by the residue of the powder in the powder sieving box is reduced.
2. The invention adopts the rotary separation technology, has large flow for treating and recycling powder and high working efficiency.
3. The powder sieving box is provided with the blades with special structures, and air flow in the powder sieving box can be accelerated in the process of sieving powder in a rotating manner, so that the problem that the separation efficiency is low and the separation is incomplete due to the fact that powder to be sieved is sunk is prevented.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of a rotary sifter box;
FIG. 3 is a schematic view of the structure of the screen assembly;
FIG. 4 is a schematic view of a blade configuration;
in the figure: frame 1, rotary screen powder box 2, fine powder storage box 3, fine powder discharge port 4, fine powder collecting tank 5, fine powder conveying pipe 6, air compressor 7, quick discharge mechanism 8, blade 9, feed port 10, feed pipe 11, auger 12, negative pressure powder suction and feeding mechanism 13, worm feed box 14, feed motor 15, vacuum pipe 16, feed port 17, discharge port 18, vacuum pump 19, rotary drive motor 21, motor fixing block 22, rotary shaft 23, screening assembly 24, bearing 25, nozzle 61, air outlet 71, blade tip 91, blade tip 92, rotary rod cover 241, screen support 242, screen 243, first screen 244, second screen 245, top screen 246, square key hole 247, bottom 921, top 922.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
Referring to fig. 1-3, a rotary powder screening machine comprises a frame 1, a rotary powder screening box 2 and a fine powder storage box 3, wherein the rotary powder screening box 2 is arranged on the frame 1, a fine powder discharging hole 4 is formed in the top or the side wall of the rotary powder screening box 2, the fine powder discharging hole 4 is connected with the fine powder storage box 3 through a pipeline, and a quick discharging mechanism 8 which can enable screened fine powder to be transferred through the fine powder discharging hole 4 and stored in the fine powder storage box 3 is further arranged in the rotary powder screening box 2.
When the powder screening machine is used, powder to be screened is added into the rotary powder screening box 2, the rotary powder screening box 2 is used for rotary powder screening, the flow of the treated and recovered powder is large, the working efficiency is high, and therefore the problem of low production efficiency of the powder screening machine is solved. After screening, the screened powder is transferred through the fine powder discharge port 4 and stored in the fine powder storage box 3 by utilizing the quick discharge mechanism 8, so that the discharge process is quick and thorough, the discharge time is saved, and the loss caused by the fact that the powder is remained in the powder screening box is reduced.
The rotary powder screening box 2 and the fine powder storage box 3 are both arranged on the frame 1, the rotary powder screening box 2 is provided with a fine powder discharge hole 4 at the top or on the side wall, the fine powder discharge hole 4 is communicated with the fine powder storage box 3 through a pipeline, the powder to be screened is rotationally separated in the rotary powder screening box 2, the fine materials are transferred and stored in the fine powder storage box 3 through the fine powder discharge hole 4 by utilizing a quick discharge mechanism 8, the discharging is rapidly and thoroughly realized, the discharging time is saved, and the loss caused by the fact that the material powder remains in the powder screening box is reduced.
Specifically, quick discharge mechanism 8 is including being located the fine powder collecting vat 5 that is used for collecting the fine powder of sieving of rotatory sieve powder case 2 bottom, and fine powder collecting vat 5 is connected with the internal surface of rotatory sieve powder case 2 through smooth inclined plane, and quick discharge mechanism 8 is still including fine powder conveyer pipe 6 and air compressor 7, fine powder conveyer pipe 6 one end and fine powder discharge gate 4 fixed connection, the mouth of pipe 61 of the other end are located fine powder collecting vat 5, and air compressor 7's air outlet 71 is just to mouth of pipe 61, and air is pressed out from air compressor 7's air outlet 71, drives the fine powder in the fine powder collecting vat 5 and gets into the fine powder bin 3 through fine powder conveyer pipe 6 and fine powder discharge gate 4 and store.
The fine powder falls on the smooth inclined plane after passing through the screen mesh, and then is collected in the fine powder collecting tank 5 along the smooth inclined plane, the pipe orifice 61 of the fine powder conveying pipe 6 is positioned in the fine powder collecting tank 5, and the air outlet 71 of the air compressor 7 is opposite to the pipe orifice 61, so that when discharging is required, the air compressor 7 is started, so that air is extruded from the air outlet 71, the fine powder in the fine powder collecting tank 5 is driven to enter the fine powder storage tank 3 for storage through the fine powder conveying pipe 6 and the fine powder discharging hole 4, and rapid and thorough discharging is realized.
Preferably, a negative pressure powder sucking and feeding mechanism 13 is connected between the fine powder discharging hole 4 and the fine powder storage box 3, specifically, the negative pressure powder sucking and feeding mechanism 13 comprises a worm feeding box 14 connected with the fine powder discharging hole 4 and the fine powder storage box 3 and a feeding motor 15 connected to the worm feeding box 14, a vacuum tube 16 is connected to the top of the worm feeding box 14, a feeding hole 17 of the worm feeding box 14 is connected with the fine powder discharging hole 4, a discharging hole 18 of the worm feeding box 14 is connected with the fine powder storage box 3, and the vacuum tube 16 is connected with a vacuum pump 19. In the discharging process, the feeding motor 15 drives the worm feeding box 14 to make the air pressure lower than the air pressure in the rotary powder screening box 2, and under the action of pressure difference, the screened fine powder is more favorable to entering the fine powder storage box 3 from the rotary powder screening box 2 through the fine powder discharging hole 4 via the feeding hole 17 and the discharging hole 18, so that the discharging process is further quick and thorough.
Specifically, the top of the rotary powder screening box 2 is provided with a rotary driving motor 21 and a motor fixing block 22, one end of the motor fixing block 22 is fixedly connected with the top of the rotary powder screening box 2, the other end of the motor fixing block 22 is fixedly connected with the rotary driving motor 21, a bearing 25 is further arranged in the motor fixing block 22, one end of the rotary shaft 23 penetrates through the bearing 25 to be fixedly connected with the rotary driving motor 21, the outer ring of the bearing 25 is fixedly connected with the motor fixing block 22, the inner ring of the bearing 25 is fixedly connected with the rotary shaft 23, the axis center of the rotary shaft 23 coincides with the axis center of the rotary powder screening box 2, a screening assembly 24 capable of synchronously rotating with the rotary shaft 23 is further arranged in the rotary powder screening box 2, the screening assembly 24 comprises a cylindrical rotary rod sleeve 241 which is mutually matched with the rotary shaft 23, a plurality of screen support frames 242 are fixedly connected to the side walls of the rotary rod sleeve 241, and one end of the screen support frames 242 far away from the rotary rod sleeve 241 is fixedly connected with the screen 243.
The fixed block 22 is used for fixing the rotary driving motor 21 on the top of the rotary powder screening box 2, one end of the rotary shaft 23 penetrates through the fixed block 22 and then is connected to the rotary driving motor 21, the other end of the rotary shaft 23 is sleeved with a cylindrical rotary rod sleeve 241, the side wall of the rotary rod sleeve 241 is fixedly connected with a plurality of screen supports 242, the screen 243 is fixedly connected with the screen supports 242, after the rotary driving motor 21 is started, the rotary driving motor 21 drives the rotary shaft 23 to rotate, sliding friction force between the rotary shaft 23 and the fixed block 22 is converted into rolling friction force through the bearing 25, and therefore the friction force is reduced. The rotation shaft 23 drives the rotation rod sleeve 241 to rotate the screen 243, thereby realizing rotary powder screening.
Preferably, the direction of the rotation driving motor 21 may be changed, for example, after the rotation driving motor 21 drives the rotation shaft 23 to rotate clockwise for 2min, the driving direction is changed, and the rotation shaft 23 is driven to rotate counterclockwise for 2min, so that the rotation sieving effect and efficiency can be improved.
Preferably, the center of the bottom of the screen assembly 24 is provided with an openable or closable coarse material discharge valve, the bottom of the rotary screen powder box 2 is provided with a cylindrical coarse material discharge pipeline positioned right below the coarse material discharge valve, one end of the coarse material discharge pipeline penetrates through the bottom of the rotary screen powder box 2, and the other end of the coarse material discharge pipeline is in sealing connection with the bottom of the screen assembly 24. In the screening process, the valve is in a closed state to prevent powder leakage, and after screening is completed, the valve can be opened to enable coarse powder in the screen assembly 24 which does not pass through the screen 243 to be discharged through the coarse material discharge pipeline, so that the coarse powder can be discharged rapidly.
Preferably, the inner surface of the rotating rod sleeve 241 is also provided with a plurality of square key holes 247, and when in transmission, the rotating shaft 23 is clamped with the square key holes 247, so that the transmission process has better efficiency and stability.
Specifically, the screen mesh 243 includes a first screen mesh 244, a second screen mesh 245 and a top screen mesh 246, the first screen mesh 244 is closer to the rotary rod cover 241 than the second screen mesh 245, the mesh aperture of the first screen mesh 244 is larger than the mesh aperture of the second screen mesh 245, the top screen mesh 246 is located at one end of the screen assembly 24 close to the rotary driving motor 21, the top screen mesh 246 is fixedly connected with the second screen mesh 245, the outer edge of the top screen mesh 246 is attached to the inner edge of the second screen mesh 245, the mesh aperture of the top screen mesh 246 is equal to the mesh aperture of the second screen mesh 245, and the rotary shaft 23 penetrates through the top screen mesh 246 to be matched with the rotary rod cover 241.
The powder to be sieved is sieved fine material after passing through the second screen mesh 245, so the pore size of the second screen mesh 245 is determined by the thickness of the fine material to be sieved, and a layer of first screen mesh 244 with larger pore size is further arranged in the second screen mesh 245, so that the particles with larger particle size are prevented from directly contacting with the second screen mesh 245 with smaller pore size, and the second screen mesh 245 is prevented from being blocked or even damaged, and a layer of first screen mesh 244 is arranged to play a role in preliminary filtration. The top screen 246 is provided to prevent powder from passing over the top of the second screen 245 to ensure the sieving effect.
Preferably, the first screen 244 and the second screen 245 are corrugated, so that the contact area between the powder to be screened and the first screen 244 and the second screen 245 can be increased, the impact force of the first screen 244 and the second screen 245 on the powder to be screened can be increased, and the screening efficiency is greatly improved.
Referring to fig. 2 and fig. 4, the rotating shaft 23 is fixedly connected with a plurality of blades 9, the blades 9 are divided into a plurality of layers along the axial direction of the rotating shaft 23, each layer of blades 9 is uniformly distributed along the circumferential direction of the rotating shaft 23, each blade 9 comprises a small blade end 91 fixedly connected with the rotating shaft 23 and a large blade end 92 far away from the rotating shaft 23, the large blade end 92 comprises a bottom end 921 and a top end 922, and the height of the bottom end 921 in the vertical direction is lower than the top end 922 and the bottom end 921 is connected with the top end 922 through an arc surface.
When the powder to be screened is placed in the screening assembly 24 for screening, due to the action of gravity, the sinking of part of the powder occurs, so that the screening efficiency and effect can be influenced, so that a plurality of blades 9 which are uniformly distributed in the circumferential direction are fixedly connected with the rotating shaft 23, the blades 9 comprise small blade ends 91 fixedly connected with the rotating shaft 23 and large blade ends 92 far away from the rotating shaft 23, the large blade ends 92 comprise bottom ends 921 and top ends 922, the height of the bottom ends 921 in the vertical direction is lower than that of the top ends 922, the bottom ends 921 are connected with the top ends 922 through the cambered surfaces, and when the powder to be screened is rotationally screened, the blades 9 can synchronously rotate along with the rotating shaft 23, so that the air flow in the rotary powder screening box 2 is accelerated, the powder to be screened is prevented from sinking, the separation efficiency is low, and the separation is not thorough.
As shown in fig. 2, the top of the rotary powder screening box 2 is provided with a feed inlet 10, the feed inlet 10 is communicated with the screening assembly 24 through a feed pipeline 11, and the feed pipeline 11 is further provided with an auger 12, so that the powder to be screened is preliminarily ground through the auger 12 before entering the rotary powder screening box 2 for screening, the quantity of large-particle powder in the powder to be screened is reduced, the screening efficiency is improved, and the service life of the screen 243 is prolonged.
The working principle of the invention is as follows: when the powder sieving machine is used, the rotary powder sieving box 2, the fine powder storage box 3 and the negative pressure powder absorbing and feeding mechanism 13 are fixed on the frame 1, powder to be sieved enters the sieving assembly 24 after being primarily crushed through the auger 12 from the feed inlet 10, after the powder is fed, the rotary driving motor 21 is started to drive the sieving assembly 24 to synchronously rotate, at the moment, the blades 9 can synchronously rotate along with the rotary shaft 23, so that air flow in the rotary powder sieving box 2 is accelerated, the powder to be sieved is prevented from sinking, part of powder can pass through the screen 243 due to the action of centrifugal force, namely, the sieved fine powder is collected in the fine powder collecting tank 5, after the sieving is finished, the air compressor 7 and the feeding motor 15 are started, and the sieved fine powder is quickly and thoroughly fed into the fine powder storage box 3 for storage after sequentially passing through the fine powder conveying pipe 6, the fine powder discharging port 4, the worm feed box 14, the feed inlet 17 and the discharge port 18.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms such as the frame 1, the rotary sifter box 2, the fine powder storage box 3, the fine powder discharge port 4, the fine powder collecting tank 5, the fine powder transporting pipe 6, the air compressor 7, the quick discharge mechanism 8, the blade 9, the feed port 10, the feed pipe 11, the auger 12, the negative pressure powder suction and feeding mechanism 13, the worm feed box 14, the feed motor 15, the vacuum pipe 16, the feed port 17, the discharge port 18, the vacuum pump 19, the rotary driving motor 21, the motor fixing block 22, the rotation shaft 23, the sifter assembly 24, the bearing 25, the nozzle 61, the air outlet 71, the blade small end 91, the blade large end 92, the rotation rod cover 241, the screen support 242, the screen 243, the first screen 244, the second screen 245, the top screen 246, the square key hole 247, the bottom end 921, the top end 922, and the like are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (6)
1. A rotary screen powder machine, characterized in that: the device comprises a frame (1), a rotary powder screening box (2) and a fine powder storage box (3) are arranged on the frame (1), a fine powder discharge hole (4) is formed in the top or the side wall of the rotary powder screening box (2), the fine powder discharge hole (4) is connected with the fine powder storage box (3) through a pipeline, and a quick discharge mechanism (8) which can enable screened fine powder to be transferred through the fine powder discharge hole (4) and stored in the fine powder storage box (3) is further arranged in the rotary powder screening box (2);
the quick discharging mechanism (8) comprises a fine powder collecting tank (5) which is positioned at the bottom of the rotary powder screening box (2) and is used for collecting screened fine powder, the fine powder collecting tank (5) is connected with the inner surface of the rotary powder screening box (2) through a smooth inclined surface, the quick discharging mechanism (8) further comprises a fine powder conveying pipe (6) and an air compressor (7), one end of the fine powder conveying pipe (6) is fixedly connected with the fine powder discharging hole (4), a pipe orifice (61) at the other end is positioned in the fine powder collecting tank (5), an air outlet (71) of the air compressor (7) is opposite to the pipe orifice (61), air is pressed out from the air outlet (71) of the air compressor (7) to drive fine powder in the fine powder collecting tank (5) to enter the fine powder storage box (3) through the fine powder conveying pipe (6) and the fine powder discharging hole (4) for storage, and a negative pressure powder sucking and feeding mechanism (13) is connected between the fine powder discharging hole (4) and the fine powder storage box (3);
the rotary powder screening box is characterized in that a rotary driving motor (21) and a motor fixing block (22) are arranged at the top of the rotary powder screening box (2), one end of the motor fixing block (22) is fixedly connected with the top of the rotary powder screening box (2), the other end of the motor fixing block is fixedly connected with the rotary driving motor (21), one end of a rotary shaft (23) penetrates through the motor fixing block (22) and then is connected to the rotary driving motor (21), the axis of the rotary shaft (23) coincides with the axis of the rotary powder screening box (2), a screening assembly (24) capable of synchronously rotating with the rotary shaft (23) is further arranged in the rotary powder screening box (2), the screening assembly (24) is sleeved on the rotary shaft (23), the negative pressure powder suction feeding mechanism (13) comprises a worm feeding box (14) connected with a fine powder discharging hole (4) and a fine powder storage box (3) and a feeding motor (15) connected to the worm feeding box (14), and a vacuum tube (16) is connected to the top of the worm feeding box (14);
a bearing (25) is further arranged in the motor fixing block (22), one end of the rotating shaft (23) penetrates through the bearing (25) to be fixedly connected with the rotary driving motor (21), the outer ring of the bearing (25) is fixedly connected with the motor fixing block (22), the inner ring of the bearing (25) is fixedly connected with the rotating shaft (23), a feed inlet (17) of the worm feeding box (14) is connected with the fine powder discharge port (4), a discharge port (18) of the worm feeding box (14) is connected with the fine powder storage box (3), and a vacuum tube (16) is connected with the vacuum pump (19);
the screening assembly (24) comprises a cylindrical rotating rod sleeve (241) which is matched with the rotating shaft (23), a plurality of screen support frames (242) are fixedly connected to the side wall of the rotating rod sleeve (241), and one end, far away from the rotating rod sleeve (241), of each screen support frame (242) is fixedly connected with the screen (243).
2. The rotary screen powder machine of claim 1, wherein: the screen cloth (243) include first screen cloth (244), second screen cloth (245) and top screen cloth (246), and first screen cloth (244) are more close to rotatory pole cover (241) than second screen cloth (245) and the sieve mesh aperture of first screen cloth (244) is greater than the sieve mesh aperture of second screen cloth (245), top screen cloth (246) are located the one end that is close to rotary driving motor (21) of screening subassembly (24), and top screen cloth (246) and second screen cloth (245) fixed connection and the outward flange of top screen cloth (246) are laminated with the inward flange of second screen cloth (245), and the sieve mesh aperture of top screen cloth (246) equals with the sieve mesh aperture size of second screen cloth (245), and rotation axis (23) run through top screen cloth (246) and rotatory pole cover (241) and cooperate each other.
3. The rotary screen powder machine of claim 1, wherein: the inner surface of the rotating rod sleeve (241) is also provided with a plurality of square key holes (247).
4. The rotary screen powder machine of claim 1, wherein: the rotary shaft (23) is fixedly connected with a plurality of blades (9), the blades (9) are divided into a plurality of layers along the axial direction of the rotary shaft (23), and each layer of blades (9) are uniformly distributed along the circumferential direction of the rotary shaft (23).
5. The rotary screen powder machine of claim 4, wherein: the blade (9) comprises a small blade end (91) fixedly connected with the rotating shaft (23) and a large blade end (92) far away from the rotating shaft (23), the large blade end (92) comprises a bottom end (921) and a top end (922), the bottom end (921) is lower than the top end (922) in the vertical direction in height, and the bottom end (921) is connected with the top end (922) through an arc surface.
6. The rotary screen powder machine of claim 1, wherein: the rotary powder screening box is characterized in that a feed inlet (10) is formed in the top of the rotary powder screening box (2), the feed inlet (10) is communicated with a screening assembly (24) through a feed pipeline (11), and an auger machine (12) is further arranged on the feed pipeline (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711016962.6A CN107670966B (en) | 2017-10-26 | 2017-10-26 | Rotary powder screening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711016962.6A CN107670966B (en) | 2017-10-26 | 2017-10-26 | Rotary powder screening machine |
Publications (2)
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| CN109709055B (en) * | 2019-01-31 | 2021-07-13 | 遵义市精科信检测有限公司 | Food additive detection method and device |
| CN113400470A (en) * | 2021-05-27 | 2021-09-17 | 张广庆 | Cement mixer |
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