CN117415010A - High-quality flour screening equipment for flour processing - Google Patents
High-quality flour screening equipment for flour processing Download PDFInfo
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- CN117415010A CN117415010A CN202311210737.1A CN202311210737A CN117415010A CN 117415010 A CN117415010 A CN 117415010A CN 202311210737 A CN202311210737 A CN 202311210737A CN 117415010 A CN117415010 A CN 117415010A
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- Prior art keywords
- flour
- screen
- air
- blowing rod
- air blowing
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- 235000013312 flour Nutrition 0.000 title claims abstract description 135
- 238000012216 screening Methods 0.000 title claims abstract description 80
- 238000012545 processing Methods 0.000 title claims abstract description 21
- 238000007664 blowing Methods 0.000 claims abstract description 137
- 230000000903 blocking effect Effects 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims description 46
- 239000004744 fabric Substances 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 13
- 238000007667 floating Methods 0.000 claims description 11
- 238000013016 damping Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 23
- 239000012535 impurity Substances 0.000 description 13
- 238000009423 ventilation Methods 0.000 description 13
- 238000007790 scraping Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 239000000843 powder Substances 0.000 description 4
- 241000209140 Triticum Species 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 235000004237 Crocus Nutrition 0.000 description 2
- 241000596148 Crocus Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 235000008429 bread Nutrition 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 235000015895 biscuits Nutrition 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 235000013522 vodka Nutrition 0.000 description 1
Classifications
-
- 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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/52—Cleaning with brushes or scrapers
- B07B1/522—Cleaning with brushes or scrapers with brushes
-
- 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
- B07B1/50—Cleaning
- B07B1/55—Cleaning with fluid jets
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention belongs to the technical field of flour processing, in particular to high-precision flour screening equipment for flour processing, which comprises a bottom cylinder, wherein a damping spring, a lower frame and an upper frame are sequentially arranged on the bottom cylinder from bottom to top, and a screen is arranged between the upper frame and the lower frame; the middle position in the lower frame is provided with a fixed part, the fixed part is rotatably provided with a rotating part, the rotating part is provided with an air blowing rod, the air blowing rod is close to the lower surface of the screen, the fixed part is internally provided with a rotating motor, and the rotating motor drives the rotating part to rotate; the air blowing rod is internally provided with an air vent cavity, the surface of the air blowing rod is provided with an air hole communicated with the air vent cavity, and the air vent cavity is connected to an external air source through an air pipe; the screening machine is simple in structure, can clean the screen mesh in the screening equipment, and avoids blocking of the screen mesh, and influences the normal work of the screening equipment and the screening efficiency of flour.
Description
Technical Field
The invention belongs to the technical field of flour processing, and particularly relates to high-quality flour screening equipment for flour processing.
Background
Wheat is a generic name of wheat plants, is a gramineous plant widely planted in the world, originates in the middle east crescent region, is one of the earliest crops cultivated in the world, has caryopsis as one of the main foods of human beings, can be made into bread, steamed bread, biscuits, noodles and the like after being ground into flour, and can be made into beer, alcohol, vodka or biomass fuel after fermentation.
Wheat processing needs to grind through milling equipment, and the particle diameter after the crocus is very little, and the crocus is accomplished the back and generally can be sieved and filtered, gets rid of great granule impurity, if will not get rid of impurity, can influence the subsequent processing of flour, and in screening course of working, the sieve mesh jam is the problem that is troublesome always, and the sieve mesh is opened for a short time, just can screen out fine flour, but the sieve mesh is smaller, and the easier jam, the throughput is just less, and the sieve mesh is opened for a long time, then is difficult to obtain fine flour.
Disclosure of Invention
In order to make up the defects of the prior art, the screen mesh in the screening equipment is cleaned, the screen mesh is prevented from being blocked, the normal work of the screening equipment is influenced, and the screening efficiency of flour is influenced.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to high-precision flour screening equipment for flour processing, which comprises a bottom cylinder, wherein a lower frame is arranged on the bottom cylinder through a vibration reduction spring, a vibration motor is arranged on the lower frame, an upper frame is arranged on the lower frame, the upper frame and the lower frame are mutually fixed through a clamp, and a screen is arranged between the upper frame and the lower frame;
the middle position in the lower frame is provided with a mounting column, the mounting column comprises a fixing part and a rotating part, the fixing part is connected with the lower frame, the rotating part is rotatably arranged on the fixing part, the rotating part is provided with a blowing rod, the blowing rod is close to the lower surface of the screen, the fixing part is internally provided with a rotating motor, the fixing part is internally provided with a mounting cavity, the rotating motor is positioned in the mounting cavity, and the rotating motor drives the rotating part to rotate;
the air blowing rod is internally provided with an air ventilation cavity, the surface of the air blowing rod is provided with air holes communicated with the air ventilation cavity, the air holes are opposite to the sieve holes on the sieve screen, and the air ventilation cavity is connected to an external air source through an air pipe.
Preferably, the rotating part is provided with a rectangular sliding hole, the blowing rod is slidably arranged in the sliding hole, the blowing rod is connected with the upper surface and the lower surface of the sliding hole through floating springs, and the upper surface of the blowing rod is in contact with the lower surface of the screen.
Preferably, an elastic layer is arranged on the upper surface of the air blowing rod, the upper surface of the air blowing rod is rectangular, and the upper surface of the air blowing rod is parallel to the lower surface of the screen.
Preferably, cleaning bristles are arranged on the upper surface of the blowing rod, and the diameter of each cleaning bristle is smaller than or equal to the diameter of a sieve hole on the sieve screen.
Preferably, the cleaning bristles are distributed around the outside of the air hole.
Preferably, the upper ends of the cleaning bristles are in a needle point shape.
Preferably, the upper end of the rotating part is provided with a mounting shaft, the upper end of the mounting shaft extends out to the upper side of the screen, the mounting shaft is provided with a mounting block, the mounting block is provided with a scraping plate, the scraping plate is in contact with the upper surface of the screen, the scraping plate is positioned right above the blowing rod, and the lower surface of the scraping plate is provided with a groove right opposite to the air hole.
Preferably, an elastic plate is mounted on the side wall of the groove located at the front in the rotation direction, and blocking bristles are mounted on the side wall of the groove located at the rear in the rotation direction.
The beneficial effects of the invention are as follows:
1. according to the high-precision flour screening device for flour processing, the fixed part, the rotating motor and the blowing rod are arranged, when flour is screened by the screening device, the air flow sprayed out of the blowing rod is utilized to reversely impact and clean the sieve holes on the sieve screen, so that the sieve holes are prevented from being blocked by the flour, normal use of the sieve screen is ensured, meanwhile, the flour above the sieve screen is disturbed by the air flow sprayed out reversely, and the flour screening efficiency and screening effect are improved.
2. According to the high-precision flour screening device for flour processing, the sliding holes, the floating springs, the blowing rods and the cleaning bristles are arranged, so that the blowing rods vibrate when the screening device works, and then the blowing rods contact and impact the screen mesh, at the moment, the cleaning bristles penetrate into the screen holes to push and impact the flour blocking the screen holes in cooperation with air flow, the cleaning effect of the screen mesh is improved, the screen holes on the screen mesh are prevented from being blocked by the flour, and the normal work of the screening device and the screening efficiency of the flour are influenced.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a front view of a screening apparatus of the present invention;
FIG. 2 is a partial cross-sectional view of the screening apparatus of the present invention;
FIG. 3 is a schematic view of the structure of the mounting column and the blowing rod in the screening apparatus of the present invention;
FIG. 4 is a schematic view of the structure of a scraper in the screening apparatus of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 2 at A;
FIG. 6 is an enlarged view of a portion of FIG. 2 at B;
FIG. 7 is an enlarged view of a portion of FIG. 2 at C;
in the figure: the vibration damping device comprises a bottom cylinder 1, a damping spring 11, a vibration motor 12, a lower frame 2, an upper frame 21, a clamp 22, a screen 23, a mounting column 3, a fixing part 31, a mounting cavity 311, a rotating motor 312, an air pipe 313, a rotating part 32, a sliding hole 321, a communication hole 322, a hose 323, a floating spring 324, an air blowing rod 33, an air ventilation cavity 331, an air hole 332, cleaning bristles 333, an elastic layer 334, a scraping plate 34, a mounting block 341, a mounting shaft 342, an elastic plate 343 and blocking bristles 344.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 7, the high-quality flour screening device for flour processing according to the present invention comprises a bottom barrel 1, wherein a lower frame 2 is mounted on the bottom barrel 1 through a damping spring 11, a vibration motor 12 is mounted on the lower frame 2, an upper frame 21 is mounted on the lower frame 2, the upper frame 21 and the lower frame 2 are mutually fixed through a clamp 22, and a screen 23 is mounted between the upper frame 21 and the lower frame 2;
the installation column 3 is installed at the middle position in the lower frame 2, the installation column 3 comprises a fixed part 31 and a rotating part 32, the fixed part 31 is connected with the lower frame 2, the rotating part 32 is rotatably installed on the fixed part 31, the blowing rod 33 is installed on the rotating part 32, the blowing rod 33 is close to the lower surface of the screen 23, a rotating motor 312 is installed in the fixed part 31, an installation cavity 311 is formed in the fixed part 31, the rotating motor 312 is located in the installation cavity 311, and the rotating motor 312 drives the rotating part 32 to rotate;
the blowing rod 33 is internally provided with a ventilation cavity 331, the surface of the blowing rod 33 is provided with an air hole 332 communicated with the ventilation cavity 331, the air hole 332 is opposite to the sieve holes on the sieve screen 23, and the ventilation cavity 331 is connected to an external air source through an air pipe 313;
when flour is screened, firstly, a vibrating motor 12 on screening equipment is started, then flour to be screened is added into the screening equipment from a feed inlet on an upper frame 21, flour meeting requirements in the flour to be screened passes through a screen hole on a screen 23 and falls into a lower frame 2, then the screened flour entering into the lower frame 2 is discharged from a fine powder outlet on the lower frame 2, and impurities or coarser flour remained in the upper frame 21 are discharged from a coarse powder outlet on the upper frame 21;
in the process, the rotating motor 312 is synchronously started to enable the rotating part 32 on the mounting column 3 to rotate, so that the blowing rod 33 arranged on the rotating part 32 is driven to rotate, the blowing rod 33 can fully contact the lower surface of the screen 23, meanwhile, in the process of rotating the blowing rod 33, an external air source sends air into the ventilation cavity 331 in the blowing rod 33 through the air pipe 313, and finally the air flow is sprayed out of the air holes 332, the sprayed air flow can impact the sieve holes on the screen 23, so that the flour clamped in the sieve holes is reversely sprayed into the upper frame 21, the screen 23 is cleaned, the possibility that the screen 23 is blocked by the flour is reduced, the normal operation of screening equipment is ensured, and meanwhile, when the air flow sprayed out of the blowing rod 33 contacts the unblocked part on the screen 23, the sprayed air flow can pass through the sieve holes to disturb the flour above the screen 23, and the flour is beneficial to continuously screening;
simultaneously, the outside air pipe 313 communicates to the installation cavity 311, afterwards, set up the intercommunicating pore 322 in rotating portion 32 for intercommunicating pore 322 communicates with the installation cavity 311 each other, simultaneously, through hose 323 interconnect between the ventilation cavity 331 on intercommunicating pore 322 and the blowing pole 33, thereby makes the air current that the outside air supply sent can pass through in the installation cavity 311, carries out heat dissipation cooling to the rotation motor 312 in the installation cavity 311, avoids the too high damage of occurrence of rotation motor 312 temperature.
As an embodiment of the present invention, the rotating portion 32 is provided with a rectangular sliding hole 321, the air blowing rod 33 is slidably mounted in the sliding hole 321, the air blowing rod 33 is connected with the upper and lower surfaces of the sliding hole 321 through a floating spring 324, and the upper surface of the air blowing rod 33 is in contact with the lower surface of the screen 23;
when the screening device works, the vibration motor 12 drives the lower frame 2, the screen 23, the upper frame 21 and the like to vibrate, so that the mounting column 3 mounted on the lower frame 2 synchronously vibrates, and when the mounting column 3 vibrates, the vibration is transmitted to the air blowing rod 33 through the floating spring 324, so that the air blowing rod 33 vibrates, and then the air blowing rod 33 is in reciprocating contact with and impacts the screen 23, so that the part of the screen 23 vibrates in the vertical direction, the air flow sprayed out of the air blowing rod 33 is matched, the separation of flour blocked in the screen holes is better promoted, the screen 23 can normally screen the flour, the normal work of the screening device is avoided, meanwhile, the vibration on the mounting column 3 is weakened and buffered by the floating spring 324 when the vibration on the mounting column 3 is transmitted to the air blowing rod 33, so that the impact force of the air blowing rod 33 on the screen 23 is relatively small when the air blowing rod 33 contacts and impacts the screen 23, and the screen 33 is relatively small, and the screening effect of the screen 23 is relatively small is avoided, and the screening effect of the screen 23 is relatively small is prevented from being influenced by the vibration force of the air blowing rod 33 on the screen 23;
meanwhile, since the ventilation cavity 331 in the air blowing rod 33 is communicated with the communication hole 322 through the hose 323, and the length of the hose 323 is fixed, when the air blowing rod 33 vibrates, the upward movement distance of the air blowing rod 33 can be limited by the hose 323, so that when the vibration generated by the vibration motor 12 is overlarge or the vibration amplitude of the air blowing rod 33 is overlarge due to aging of the floating spring 324, the air blowing rod 33 cannot excessively impact and push the screen 23, and the screen 23 is prevented from being damaged by the air blowing rod 33, so that the normal operation of the screening equipment is influenced.
As an embodiment of the present invention, an elastic layer 334 is mounted on the upper surface of the air blowing rod 33, the upper surface of the air blowing rod 33 is rectangular, and the upper surface of the air blowing rod 33 is parallel to the lower surface of the screen 23;
through installing elastic layer 334 on blowing pole 33 to when blowing pole 33 takes place to vibrate, contact and strike screen cloth 23, utilize elastic layer 334 on the blowing pole 33 to protect the surface of screen cloth 23, avoid screen cloth 23 and the mutual contact of hard surface on the blowing pole 33, simultaneously, after having hardness great impurity and impurity to drop on the surface of blowing pole 33 after passing screen cloth 23 in the flour, this hardness great impurity can be located the surface of elastic layer 334, make blowing pole 33 when contacting and striking screen cloth 23, hardness great impurity can be under the buffering of elastic layer 334, avoid hardness great impurity to press screen cloth 23 lower surface by force, and then lead to the lower surface slow impaired of screen cloth 23, influence the life of screen cloth 23 and to the screening effect of flour.
As an embodiment of the present invention, cleaning bristles 333 are mounted on the upper surface of the air blowing rod 33, and the diameter of the cleaning bristles 333 is less than or equal to the diameter of the mesh holes on the screen 23;
because when screening the flour, the flour that waits to screen is usually put into screening equipment in succession to guarantee the machining efficiency of flour screening, at this moment, after the sieve mesh on screen cloth 23 is stopped up by the flour, the top of the flour that is located in the sieve mesh and the surface of screen cloth 23 still can have other flours, thereby carry out further compaction or stop to the flour in the sieve mesh, make the air current of blowout in the gas blowing pole 33 strike, when clearing up the flour that blocks up in the sieve mesh, can not be quick and effectual with the flour in the sieve mesh reverse blowout, result in the gas blowing pole 33 to the efficiency that the sieve mesh that blocks up on the screen cloth 23 was cleared up is not good, at this moment, through install clearance brush hair 333 on gas blowing pole 33, make clearance brush hair 333 pierce into the sieve mesh in the vibration process of gas blowing pole 33, carry out preliminary promotion or direct upwards push out the flour that blocks up the sieve mesh, thereby after the air current of blowout in gas blowing pole 33, make the air current blow out the flour that blocks up the sieve mesh or make the air current pass fast from the sieve mesh, improve the screening effect to the sieve mesh that blocks up the sieve mesh, the screen mesh that blocks up the screen mesh is carried out the clearance, the normal condition of the screen cloth is guaranteed in the process of screening the screen cloth 23.
As an embodiment of the present invention, the cleaning bristles 333 are distributed around the outside of the air holes 332;
because the cleaning brush hair 333 surrounds the outer side of the air hole 332, in the process of vibrating the air blowing rod 33, the cleaning brush hair 333 can perform preliminary cleaning on the area, which is to be passed by the air hole 332, on the screen 23 in the area in advance, the effect of cleaning the screen holes on the screen 23 by the subsequent air hole 332 is improved, the condition that the screen holes are blocked easily again after the screen holes are caused by the fact that blocked flour in the screen holes cannot be cleaned once is avoided, meanwhile, when the air blowing rod 33 vibrates, the cleaning brush hair 333 on the air blowing rod 33 also performs repeated cleaning on the area, which is to be passed by the air hole 332, of the screen holes which are to be cleaned and impacted by air flow sprayed out of the air hole 332 is ensured to be completely unobstructed, and the flour which is not completely separated from the screen holes after the air flow impact in the screen holes is ejected out of the screen holes is also ensured, so that the cleaning effect on the screen holes on the screen 23 is completely unobstructed is improved, and the screening effect on the flour is avoided.
As an embodiment of the present invention, the upper ends of the cleaning bristles 333 are needle-point shaped;
through repairing the upper end of clearance brush hair 333 for the upper end of clearance brush hair 333 presents as the needle point shape, so that clearance brush hair 333 in the vibration of blowing pole 33, the upper end of clearance brush hair 333 can be more easy pierce into the sieve mesh, and at the in-process of blowing pole 33 follow-up upwards vibration, strike, move the flour that blocks up in the sieve mesh, clear away the flour that blocks up in the sieve mesh, guarantee the normal work of screen cloth 23.
As one embodiment of the present invention, a mounting shaft 342 is mounted at the upper end of the rotating portion 32, the upper end of the mounting shaft 342 extends above the screen 23, a mounting block 341 is mounted on the mounting shaft 342, a scraper 34 is mounted on the mounting block 341, the scraper 34 is in contact with the upper surface of the screen 23, the scraper 34 is located right above the air blowing rod 33, and a groove opposite to the air hole 332 is formed in the lower surface of the scraper 34;
because the screening device screens flour, the flour with screening can be continuously added into the screening device, so that relatively more unscreened flour exists above the screen cloth 23, meanwhile, when the air blowing rod 33 cleans the screen cloth 23, the unscreened flour accumulated above the screen cloth 23 can block air flow sprayed out of the air blowing rod 33 and cleaning bristles 333 penetrating into the screen holes, further, the cleaning effect and cleaning efficiency of the air blowing rod 33 on the screen cloth 23 are affected, the screen holes on the screen cloth 23 are blocked, at the moment, the interference of the unscreened flour on the cleaning work can be solved or relieved by increasing the vibration amplitude and the pressure of the sprayed air flow, but the vibration amplitude is increased, so that the screening device can increase unnecessary energy consumption and the impact force of the air blowing rod 33 on the screen cloth 23 is easily excessive, the screen cloth 23 is damaged, the pressure of the sprayed air flow is increased to cause the flour in the screening equipment to fly upwards and even fly out of the screening equipment, so that the dust concentration in a production workshop is increased, and potential safety hazards are generated, therefore, the scraper 34 is arranged above the screen cloth 23, and the scraper 34 is provided with a groove, so that when the air blowing rod 33 rotates along with the rotating part 32, the scraper 34 synchronously rotates above the screen cloth 23 along with the air blowing rod 33, the unscreened flour above the screen cloth 23 is stirred, no or a small amount of unscreened flour exists above the area where the air blowing rod 33 passes on the screen cloth 23, the influence of the unscreened flour on the cleaning effect of the air blowing rod 33 on the screen cloth 23 is avoided, the screening efficiency of the flour and the normal work of the screening equipment are influenced because the screen holes on the screen cloth 23 cannot be dredged in time after being blocked.
As an embodiment of the present invention, an elastic plate 343 is installed on a side wall of the groove located at the front in the rotation direction, and blocking bristles 344 are installed on a side wall of the groove located at the rear in the rotation direction;
through the elastic plate 343 installed on the side wall of the groove, when the scraper 34 rotates, flour in front of the scraper 34 in the rotating direction is pushed and scraped, unscreened flour is prevented from being accumulated, the elastic plate 343 is utilized to contact with the screen 23, the scraper 34 with high hardness is prevented from being directly utilized to contact with the screen 23, abrasion and damage of the screen 23 are caused, meanwhile, blocking bristles 344 are installed on the side wall of the groove, the unscreened flour can be prevented from entering the groove from the rear of the scraper 34 in the rotating direction after passing through the scraper 34, and the unscreened flour is accumulated on the screen 23 in the passing area of the blowing rod 33, so that the cleaning effect of the blowing rod 33 on the screen 23 is influenced.
The specific working procedure is as follows:
when flour is screened, firstly, a vibrating motor 12 on screening equipment is started, then flour to be screened is added into the screening equipment from a feed inlet on an upper frame 21, flour meeting requirements in the flour to be screened passes through a screen hole on a screen 23 and falls into a lower frame 2, then the screened flour entering into the lower frame 2 is discharged from a fine powder outlet on the lower frame 2, and impurities or coarser flour remained in the upper frame 21 are discharged from a coarse powder outlet on the upper frame 21;
in the process, the rotating motor 312 is synchronously started to enable the rotating part 32 on the mounting column 3 to rotate, so that the blowing rod 33 arranged on the rotating part 32 is driven to rotate, the blowing rod 33 can fully contact the lower surface of the screen 23, meanwhile, in the process of rotating the blowing rod 33, an external air source sends air into the ventilation cavity 331 in the blowing rod 33 through the air pipe 313, and finally the air flow is sprayed out of the air holes 332, the sprayed air flow can impact the sieve holes on the screen 23, so that the flour clamped in the sieve holes is reversely sprayed into the upper frame 21, the screen 23 is cleaned, the possibility that the screen 23 is blocked by the flour is reduced, the normal operation of screening equipment is ensured, and meanwhile, when the air flow sprayed out of the blowing rod 33 contacts the unblocked part on the screen 23, the sprayed air flow can pass through the sieve holes to disturb the flour above the screen 23, and the flour is beneficial to continuously screening;
meanwhile, an external air pipe 313 is communicated to the mounting cavity 311, and then a communication hole 322 is formed in the rotating part 32, so that the communication hole 322 is communicated with the mounting cavity 311, and meanwhile, the communication hole 322 is connected with a ventilation cavity 331 on the air blowing rod 33 through a hose 323, so that air flow sent by an external air source can pass through the mounting cavity 311, heat dissipation and temperature reduction are performed on the rotating motor 312 in the mounting cavity 311, and damage caused by overhigh temperature of the rotating motor 312 is avoided;
when the screening device works, the vibration motor 12 drives the lower frame 2, the screen 23, the upper frame 21 and the like to vibrate, so that the mounting column 3 mounted on the lower frame 2 synchronously vibrates, and when the mounting column 3 vibrates, the vibration is transmitted to the air blowing rod 33 through the floating spring 324, so that the air blowing rod 33 vibrates, and then the air blowing rod 33 is in reciprocating contact with and impacts the screen 23, so that the part of the screen 23 vibrates in the vertical direction, the air flow sprayed out of the air blowing rod 33 is matched, the separation of flour blocked in the screen holes is better promoted, the screen 23 can normally screen the flour, the normal work of the screening device is avoided, meanwhile, the vibration on the mounting column 3 is weakened and buffered by the floating spring 324 when the vibration on the mounting column 3 is transmitted to the air blowing rod 33, so that the impact force of the air blowing rod 33 on the screen 23 is relatively small when the air blowing rod 33 contacts and impacts the screen 23, and the screen 33 is relatively small, and the screening effect of the screen 23 is relatively small is avoided, and the screening effect of the screen 23 is relatively small is prevented from being influenced by the vibration force of the air blowing rod 33 on the screen 23;
meanwhile, because the ventilation cavity 331 in the air blowing rod 33 is communicated with the communication hole 322 through the hose 323, and the length of the hose 323 is fixed, when the air blowing rod 33 vibrates, the upward movement distance of the air blowing rod 33 can be limited by the hose 323, so that when the vibration amplitude of the air blowing rod 33 is overlarge due to overlarge vibration generated by the vibration motor 12 or aging of the floating spring 324, the air blowing rod 33 cannot excessively impact and push the screen 23, and the screen 23 is prevented from being damaged by the air blowing rod 33, so that the normal operation of screening equipment is influenced;
by arranging the elastic layer 334 on the blowing rod 33, when the blowing rod 33 vibrates to contact and impact the screen 23, the elastic layer 334 on the blowing rod 33 is used for protecting the surface of the screen 23 to prevent the screen 23 from being contacted with the hard surface on the blowing rod 33, meanwhile, after impurities with higher hardness exist in the flour and fall onto the surface of the blowing rod 33 after passing through the screen 23, the impurities with higher hardness can be positioned on the surface of the elastic layer 334, so that when the blowing rod 33 contacts and impacts the screen 23, the impurities with higher hardness can be buffered by the elastic layer 334 to prevent the impurities with higher hardness from forcibly extruding the lower surface of the screen 23, and further the lower surface of the screen 23 is slowly damaged to influence the service life of the screen 23 and the screening effect on the flour;
because the flour to be screened is continuously thrown into screening equipment to ensure the processing efficiency of flour screening, at the moment, after the screen holes on the screen mesh 23 are blocked by the flour, other flours are arranged above the flour in the screen holes and on the surface of the screen mesh 23, so that the flour in the screen holes is further compacted or blocked, when the air flow sprayed out of the air blowing rod 33 impacts and cleans the flour blocked in the screen holes, the flour in the screen holes cannot be quickly and effectively reversely blown out, the efficiency of cleaning the screen holes blocked on the screen mesh 23 by the air blowing rod 33 is poor, at the moment, the cleaning bristles 333 are arranged on the air blowing rod 33 to be penetrated into the screen holes in the vibration process of the air blowing rod 33, the flour blocked in the screen holes is primarily pushed or directly pushed upwards, and after the air flow is sprayed out of the air flow in the air blowing rod 33, the air flow can be quickly and effectively blown out of the flour blocked in the screen holes or the air flow can be quickly passed through the screen holes, the cleaning effect of the flour blocked in the screen holes is improved, the screen holes 23 is normally cleaned, and the normal screening process of the screen holes is avoided;
because the cleaning bristles 333 are distributed around the outer sides of the air holes 332, in the process of vibrating the air blowing rod 33, the cleaning bristles 333 can primarily clean the area of the screen 23, which is about to be passed by the air holes 332, so that the effect of cleaning the screen holes of the screen 23 in the area by the subsequent air holes 332 is improved, the situation that the screen holes are easily blocked again after the screen holes are caused by the fact that the blocked flour in the screen holes cannot be cleaned once is avoided, meanwhile, when the air blowing rod 33 vibrates, the cleaning bristles 333 on the air blowing rod 33 can also secondarily clean the area of the screen 23, which is already passed by the air holes 332, clean and repeatedly clean the screen holes which are sprayed out by the air holes 332, ensure that the screen holes are completely unobstructed, and the flour which is loosened after being impacted by the air flow but is not completely separated from the screen holes is ejected out of the screen holes, so that the cleaning effect of the screen holes of the screen 23 is completely unobstructed is improved, and the screening effect of the flour is avoided;
by trimming the upper ends of the cleaning bristles 333, the upper ends of the cleaning bristles 333 are in a needle tip shape, so that the upper ends of the cleaning bristles 333 can be more easily penetrated into the sieve holes when the blowing rod 33 vibrates, and the blocked flour in the sieve holes is impacted and jacked in the process of the subsequent upward vibration of the blowing rod 33, so that the flour blocked in the sieve holes is cleaned out, and the normal work of the screen 23 is ensured;
because the screening device screens flour, the flour with screening can be continuously added into the screening device, so that relatively more unscreened flour exists above the screen cloth 23, meanwhile, when the air blowing rod 33 cleans the screen cloth 23, the unscreened flour accumulated above the screen cloth 23 can block air flow sprayed out of the air blowing rod 33 and cleaning bristles 333 penetrating into the screen holes, further, the cleaning effect and cleaning efficiency of the air blowing rod 33 on the screen cloth 23 are affected, the screen holes on the screen cloth 23 are blocked, at the moment, the interference of the unscreened flour on the cleaning work can be solved or relieved by increasing the vibration amplitude and the pressure of the sprayed air flow, but the vibration amplitude is increased, so that the screening device can increase unnecessary energy consumption and the impact force of the air blowing rod 33 on the screen cloth 23 is easily excessive, the screen 23 is damaged, and the pressure of the sprayed air flow is increased to cause the flour in the screening equipment to fly up and even fly out of the screening equipment, so that the dust concentration in the production workshop is increased to generate potential safety hazards, therefore, by arranging the scraping plate 34 above the screen 23 and arranging the groove on the scraping plate 34, when the air blowing rod 33 rotates along with the rotating part 32, the scraping plate 34 rotates synchronously with the air blowing rod 33 above the screen 23 to stir the unscreened flour above the screen 23, no or a small amount of unscreened flour exists above the passing area of the air blowing rod 33 on the screen 23, the influence of the unscreened flour on the cleaning effect of the air blowing rod 33 on the screen 23 is avoided, the screen holes on the screen 23 cannot be dredged in time after being blocked, and the screening efficiency of the flour and the normal work of the screening equipment are influenced;
through the elastic plate 343 installed on the side wall of the groove, when the scraper 34 rotates, flour in front of the scraper 34 in the rotating direction is pushed and scraped, unscreened flour is prevented from being accumulated, the elastic plate 343 is utilized to contact with the screen 23, the scraper 34 with high hardness is prevented from being directly utilized to contact with the screen 23, abrasion and damage of the screen 23 are caused, meanwhile, blocking bristles 344 are installed on the side wall of the groove, the unscreened flour can be prevented from entering the groove from the rear of the scraper 34 in the rotating direction after passing through the scraper 34, and the unscreened flour is accumulated on the screen 23 in the passing area of the blowing rod 33, so that the cleaning effect of the blowing rod 33 on the screen 23 is influenced.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The high-quality flour screening equipment for flour processing comprises a bottom barrel (1), wherein a lower frame (2) is arranged on the bottom barrel (1) through a vibration reduction spring (11), a vibration motor (12) is arranged on the lower frame (2), an upper frame (21) is arranged on the lower frame (2), the upper frame (21) and the lower frame (2) are mutually fixed through a clamp (22), and a screen (23) is arranged between the upper frame (21) and the lower frame (2);
the method is characterized in that: the middle position in the lower frame (2) is provided with a mounting column (3), the mounting column (3) comprises a fixing part (31) and a rotating part (32), the fixing part (31) is connected with the lower frame (2) mutually, the rotating part (32) is rotatably arranged on the fixing part (31), the rotating part (32) is provided with a blowing rod (33), the blowing rod (33) is close to the lower surface of the screen (23), the fixing part (31) is internally provided with a rotating motor (312), and the rotating motor (312) drives the rotating part (32) to rotate;
the air blowing rod (33) is internally provided with an air blowing cavity (331), the surface of the air blowing rod (33) is provided with an air hole (332) communicated into the air blowing cavity (331), and the air blowing cavity (331) is connected to an external air source through an air pipe (313).
2. A high-quality flour screening apparatus for flour processing according to claim 1, wherein: the utility model discloses a screen cloth, including rotation portion (32), blow pole (33), upper and lower surface, rotation portion (32) is last to have offered and to be rectangle slide hole (321), blow pole (33) slidable mounting is in slide hole (321), between blow pole (33) and slide hole (321) upper and lower surface through floating spring (324) interconnect, the upper surface of blow pole (33) and the lower surface mutual contact of screen cloth (23).
3. A high-quality flour screening apparatus for flour processing according to claim 2, wherein: an elastic layer (334) is arranged on the upper surface of the blowing rod (33).
4. A high-quality flour screening apparatus for flour processing according to claim 2, wherein: cleaning bristles (333) are arranged on the upper surface of the blowing rod (33), and the diameter of each cleaning bristle (333) is smaller than or equal to the diameter of a sieve hole on the screen (23).
5. A high-quality flour screening apparatus for flour processing according to claim 4, wherein: the cleaning bristles (333) are distributed around the outer side of the air hole (332).
6. A high-quality flour screening apparatus for flour processing according to claim 4, wherein: the upper ends of the cleaning bristles (333) are in a needle point shape.
7. A high-quality flour screening apparatus for flour processing according to claim 1, wherein: the upper end of rotation portion (32) is installed installation axle (342), the top of screen cloth (23) is stretched out to the upper end of installation axle (342), install installation piece (341) on installation axle (342), install scraper blade (34) on installation piece (341), the upper surface mutual contact of scraper blade (34) and screen cloth (23), scraper blade (34) are located directly over blowing pole (33), set up the recess just to gas pocket (332) on the lower surface of scraper blade (34).
8. A high-precision flour screening apparatus for flour processing according to claim 7, wherein: an elastic plate (343) is mounted on the side wall of the groove located at the front in the rotation direction, and blocking bristles (344) are mounted on the side wall of the groove located at the rear in the rotation direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311210737.1A CN117415010A (en) | 2023-09-19 | 2023-09-19 | High-quality flour screening equipment for flour processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311210737.1A CN117415010A (en) | 2023-09-19 | 2023-09-19 | High-quality flour screening equipment for flour processing |
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| Publication Number | Publication Date |
|---|---|
| CN117415010A true CN117415010A (en) | 2024-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311210737.1A Pending CN117415010A (en) | 2023-09-19 | 2023-09-19 | High-quality flour screening equipment for flour processing |
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