CN118080325B - Multi-grain seed vibrating screen machine for grain skewing detection - Google Patents
Multi-grain seed vibrating screen machine for grain skewing detection Download PDFInfo
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- CN118080325B CN118080325B CN202410489967.4A CN202410489967A CN118080325B CN 118080325 B CN118080325 B CN 118080325B CN 202410489967 A CN202410489967 A CN 202410489967A CN 118080325 B CN118080325 B CN 118080325B
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- 238000001514 detection method Methods 0.000 title abstract description 16
- 239000012535 impurity Substances 0.000 claims abstract description 127
- 238000012216 screening Methods 0.000 claims abstract description 48
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 210000001503 joint Anatomy 0.000 claims abstract description 12
- 239000000428 dust Substances 0.000 claims description 60
- 230000000712 assembly Effects 0.000 claims description 25
- 238000000429 assembly Methods 0.000 claims description 25
- 238000010521 absorption reaction Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 21
- 238000007689 inspection Methods 0.000 claims description 15
- 238000005452 bending Methods 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 abstract description 2
- 235000013339 cereals Nutrition 0.000 description 187
- 238000000034 method Methods 0.000 description 8
- 238000005070 sampling Methods 0.000 description 7
- 238000007873 sieving Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 244000068988 Glycine max Species 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
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- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 244000098338 Triticum aestivum Species 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of 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
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- 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
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- 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
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a multi-grain vibrating screen machine for grain skewing detection, which belongs to the field of grain detection equipment and comprises a frame, a collecting tank, a feeding component, a discharging component, a vibrating screen component and a controller, wherein the collecting tank, the feeding component, the discharging component, the vibrating screen component and the controller are arranged on the frame, the discharging component comprises a main pipe which is vertically arranged and at least two branch pipes which are arranged on the main pipe at intervals, a channel converter is respectively arranged at the connecting part of each branch pipe in the main pipe, the vibrating screen component comprises at least two vibrating screen components which are vertically arranged at intervals, different vibrating screen components are used for screening different grain seeds, and feed inlets of the vibrating screen components are in one-to-one correspondence with the branch pipes of the discharging component and are in butt joint. Through with the vertical setting of shake sieve subassembly together to control grain gets into the sieve subassembly that shakes that corresponds with the passageway converter of unloading subassembly and sieve, adopt a equipment can satisfy the screening demand of multiple grain, it is little to have occupation space, and the management is maintained conveniently, can improve the efficiency of grain impurity screening and advantages such as screen cloth selection accuracy.
Description
Technical Field
The invention relates to the field of grain detection equipment, in particular to a multi-grain seed vibrating screen machine for grain skewer detection.
Background
The grain sampling inspection is an important inspection work before grain is put into a warehouse, generally, grain sampling points on a grain conveying vehicle are randomly selected through a sampling system, then grains are extracted through a sampling rod, part of grains are selected and sent into a laboratory, and finally indexes such as impurity content, perfection degree and water content of the grains are inspected through various detection instruments, so that whether the grains meet the warehouse-in requirement is judged, and guidance comments can be provided for subsequent grain impurity screening.
The first detection item of grain skewing detection is to determine the impurity content of grains. In the past, the impurity content is calculated by manually sieving with a screen and then weighing, so that the efficiency is extremely low. Later, screening is carried out by replacing manual work with the sieving machine, screening efficiency is improved to some extent, but a grain depot usually stores multiple grains simultaneously, and need adopt the sieving machine of different specifications to different kinds of grains, lead to inspection room equipment more, occupation space is great, inconvenient management and maintenance have also increased the purchase and the use cost of grain depot, can also appear using wrong equipment's condition sometimes, influence the authenticity of detected data.
Disclosure of Invention
In order to overcome the defects in the existing grain impurity content detection process, the invention aims to solve the technical problems that: the multi-grain seed vibrating screen machine for grain skewing detection can screen different grains for impurities.
The technical scheme adopted for solving the technical problems is as follows:
The multi-grain vibrating screen machine for grain skewing detection comprises a frame, a collecting tank, a feeding component, a discharging component, a vibrating screen component and a controller, wherein the collecting tank, the feeding component, the discharging component, the vibrating screen component and the controller are arranged on the frame;
The material collecting tank is positioned at the top of the frame, the feeding assembly is positioned below the material collecting tank, and the bottom outlet of the material collecting tank is butted with the top inlet of the feeding assembly;
the blanking assembly is positioned below the feeding assembly and comprises a main pipe and at least two branch pipes, wherein the main pipe is vertically arranged, the at least two branch pipes are arranged on the main pipe at intervals, the top inlet of the main pipe is in butt joint with the bottom outlet of the feeding assembly, a channel converter is respectively arranged at the position, connected with each branch pipe, in the main pipe, and the channel converters are used for controlling grains reaching the position of the channel converters to enter the main pipe below the channel converters or the branch pipes corresponding to the channel converters;
the vibrating screen assemblies comprise at least two vibrating screen assemblies, wherein different vibrating screen assemblies are used for screening different grain seeds, all vibrating screen assemblies are arranged in the middle of the frame at intervals along the vertical direction, and the feed inlets of all vibrating screen assemblies are in one-to-one correspondence with and butt joint with the branch pipes of the blanking assembly;
The controller is configured to select a corresponding vibrating screen assembly according to different kinds of grains and control each channel converter so that grains reach the selected vibrating screen assembly through a corresponding branch pipe.
Further, gather materials jar includes jar body and is located the breathing pipe and the inlet pipe of jar body top and side respectively, and jar body bottom is equipped with the discharge gate, be equipped with the blotter on the inner wall of jar body, jar body middle part is equipped with the buffer board, and the upper end of buffer board is hung at jar body top through the lifting rope, and the face of buffer board is just to the inlet pipe.
Further, the top of the tank body is connected with the air suction pipe through an upper flange plate, a lower flange plate is arranged below a discharge hole at the bottom of the tank body, an upper pneumatic butterfly valve and a lower pneumatic butterfly valve are respectively arranged on the upper flange plate and the lower flange plate, a first vibrating motor is arranged on the outer wall of the tank body, and a first high-pressure air blowing nozzle communicated with the tank body is arranged at the top of the tank body.
Further, the feeding assembly comprises a feeding valve and a dust collection mechanism which are arranged between an outlet at the bottom of the material collecting tank and the discharging assembly, a section of rectangular pipe is arranged between the feeding valve and an inlet at the top of a main pipe of the discharging assembly, one end, close to the feeding valve, of the rectangular pipe is provided with a bending part, the inner wall of the bending part comprises a first inclined plane and a second inclined plane which face the feeding valve, the first inclined plane is located above the second inclined plane, the inclined directions of the first inclined plane and the second inclined plane are opposite, an adjusting plate which is parallel to the second inclined plane and can be inserted into the rectangular pipe is arranged on the outer side of the second inclined plane, a dust collection opening is formed in one side, opposite to the adjusting plate, of the rectangular pipe, and the dust collection opening is located below the adjusting plate.
Further, the position that second inclined plane lower extreme links to each other with the rectangular pipe is equipped with the socket, the regulating plate inserts in the rectangular pipe through the socket, and the one end that the regulating plate kept away from the socket is equipped with the bar hole that length direction and regulating plate inserted the direction parallel, the upper end in the second inclined plane outside is equipped with the fixed plate, the regulating plate is fixed on the fixed plate through the bolt that passes the bar hole.
Further, dust absorption mechanism includes dust absorption pipe and the fan of setting in dust absorption pipe one end, and the other end of dust absorption pipe is docked with the dust absorption mouth on the rectangular pipe, the dust absorption pipe is middle high, both ends downward sloping's structure, be equipped with transparent observation window on the lateral wall of dust absorption pipe, the highest position department is equipped with the second high pressure gas blow mouth with the dust absorption pipe intercommunication in the middle of the dust absorption pipe, the dust absorption pipe is close to the below of the one end of fan and is equipped with the scum pipe, the scum pipe is equipped with the push-pull valve with the connector department of dust absorption pipe.
Further, unloading subassembly be responsible for and branch pipe are rectangular pipe, the passageway converter is including setting up the revolving cylinder in the person in charge outside, and revolving cylinder's pivot inserts in being responsible for along being responsible for width direction, be equipped with the baffle in the pivot, the width of baffle is equivalent with the width of being responsible for, and when the baffle rotated its upper end and the right side wall contact of being responsible for, the baffle lower extreme flushes with the entry lower edge of left branch pipe, and when the baffle rotated its upper end and the left side wall contact of being responsible for, still leave the clearance between baffle lower extreme and the right side wall of being responsible for.
Further, the vibration screen assembly comprises a fine layer, a raw grain screen layer and a large impurity screen layer, wherein the fine layer, the raw grain screen layer and the large impurity screen layer are sequentially arranged from bottom to top and are provided with frames around, a large sieve pore is arranged in a large impurity screening area of the large impurity screen layer, a small sieve pore is arranged in a raw grain screening area of the raw grain screen layer, the grain size of the sieved grains is smaller than the aperture of the large sieve pore and larger than the aperture of the small sieve pore, the same side of the fine layer, the raw grain screen layer and the large impurity screen layer are respectively provided with a fine impurity outlet, a raw grain outlet and a large impurity outlet, a large impurity switch door for isolating the large impurity screening area from the large impurity outlet is arranged on the large impurity screen layer, the raw grain screen layer is provided with a raw grain switch door for isolating the raw grain screening area from the raw grain outlet, the fine layer, the raw grain screen layer and the large impurity screen layer are connected together through surrounding support columns, the bottoms of the support columns are connected with a frame through damping springs, and a second vibration motor is arranged below the bottoms of the fine layer.
Further, a smooth large impurity guide groove is arranged between the large impurity screening area and the large impurity outlet of the large impurity screening layer, the large impurity switch door is arranged at the joint of the large impurity screening area and the large impurity guide groove, a smooth raw grain guide groove is arranged between the raw grain screening area and the raw grain outlet of the raw grain screening layer, the raw grain switch door is arranged at the joint of the raw grain screening area and the raw grain guide groove, the fine impurity guide groove which is aligned with the large impurity guide groove and has the same structure is arranged on the fine impurity layer, and the large impurity guide groove and the raw grain guide groove are biased to different sides of the vibrating screen assembly; all the grain outlets of the vibrating screen assemblies are butted in the vertical direction, and all the big impurity outlets and the fine impurity outlets are butted in the vertical direction.
Further, still include the clearance subassembly, the clearance subassembly is including setting up the brush in former grain sieve layer below, the brush is contacted with the bottom surface on former grain sieve layer, and the length of brush is equivalent with the width on former grain sieve layer, and every shakes the sieve subassembly and corresponds a brush, and all brushes are installed on the support, the support links to each other with the cylinder in the frame, the flexible direction of cylinder is parallel with the length direction on former grain sieve layer.
The beneficial effects of the invention are as follows: through with a plurality of vibrating screen assemblies to different grain types along vertical direction overlap setting together to control grain gets into corresponding vibrating screen assembly with the passageway converter of unloading subassembly and sieve, adopt a equipment can satisfy the screening demand of multiple grain, whole equipment occupation space is little, management and maintenance are convenient, have improved the efficiency of grain impurity screening and the accuracy that the screen cloth was selected for use, have ensured the authenticity of grain impurity content detection data.
Drawings
FIG. 1 is an isometric view of the overall structure of the present invention;
FIG. 2 is a front view of the overall structure of the present invention;
FIG. 3 is an isometric view of a collection canister of the present invention;
FIG. 4 is a cross-sectional view of the collecting tank of the present invention;
FIG. 5 is a front view of the feed assembly of the present invention;
FIG. 6 is a cross-sectional view of a feed assembly of the present invention;
FIG. 7 is an enlarged view of portion A of FIG. 6;
FIG. 8 is a front view of the blanking assembly of the present invention;
FIG. 9 is a side view of the blanking assembly of the present invention;
FIG. 10 is a partially enlarged view of the blanking assembly of the present invention;
FIG. 11 is a partial enlarged view of a blanking assembly of the present invention;
FIG. 12 is an isometric view of a vibrating screen assembly of the present invention;
FIG. 13 is a front view of the vibrating screen assembly of the present invention;
fig. 14 is an isometric view of a cleaning assembly of the present invention.
The drawing shows that the material is 1-collecting tank, 2-feeding component, 3-blanking component, 4-vibrating screen component, 5-controller, 6-frame, 7-cleaning component, 8-raw grain collecting box, 9-impurity collecting box, 11-tank body, 12-air suction pipe, 13-feeding pipe, 14-buffer, 15-buffer plate, 16-upper flange, 17-lower flange, 18-first vibrating motor, 19-first high-pressure gas blowing nozzle, 21-feeding valve, 22-dust suction mechanism, 23-rectangular pipe, 24-regulating plate, 25-bolt, 31-main pipe, 32-branch pipe, 33-channel converter, 34-baffle, 41-fine grain layer, 42-raw grain screen layer and 43-large impurity screen layer, 44-supporting columns, 45-damping springs, 46-second vibrating motors, 47-baffle plates, 71-hairbrushes, 72-brackets, 73-cylinders, 151-lifting ropes, 161-upper pneumatic butterfly valves, 171-lower pneumatic butterfly valves, 221-dust collection pipes, 222-fans, 223-transparent observation windows, 224-second high-pressure gas blowing ports, 225-slag discharge pipes, 226-gate valves, 231-bending parts, 232-first inclined surfaces, 233-second inclined surfaces, 234-dust collection ports, 235-sockets, 236-fixed plates, 241-strip-shaped holes, 331-rotating cylinders, 332-rotating shafts, 333-baffle plates, 411-fine impurity outlets, 412-fine impurity guide grooves, 421-raw grain screening areas, 422-raw grain outlets, 423-raw grain switch door, 424-raw grain guide groove, 425-notch, 431-large impurity screening area, 432-large impurity outlet, 433-large impurity switch door, 434-large impurity guide groove and 471-blanking port.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
In the present invention, directional terms such as up, down, left, right, front, rear, and azimuth are used to facilitate the description of the relative positional relationship between the members, and are not meant to refer specifically to the absolute position of the relative member or the inter-member relationship, but are used only to explain the relative positional relationship, movement, and the like between the members in a specific posture, and if the specific posture is changed, the directional terms are changed accordingly. In the present invention, the terms "plurality", "a plurality" and the like refer to two or more.
As shown in fig. 1,2, 8 and 9, the multi-grain sieving machine for grain skewing inspection comprises a frame 6, and an aggregate tank 1, a feeding component 2, a discharging component 3, a sieving component 4 and a controller 5 which are arranged on the frame 6;
the material collecting tank 1 is positioned at the top of the frame 6, the feeding assembly 2 is positioned below the material collecting tank 1, the bottom outlet of the material collecting tank 1 is in butt joint with the top inlet of the feeding assembly 2, the material collecting tank 1 is mainly used for receiving grains fed from the sampling system, and the feeding assembly 2 is used for feeding the grains in the material collecting tank 1 into the discharging assembly 3 and controlling the discharging speed;
the blanking assembly 3 is positioned below the feeding assembly 2, the blanking assembly 3 comprises a main pipe 31 which is vertically arranged and at least two branch pipes 32 which are arranged on the main pipe 31 at intervals, the top inlet of the main pipe 31 is in butt joint with the bottom outlet of the feeding assembly 2, a channel converter 33 is respectively arranged at the position, connected with each branch pipe 32, in the main pipe 31, the channel converters 33 are used for controlling grains reaching the position of the channel converters to enter the main pipe 31 below the main pipe or the branch pipes 32 corresponding to the channel converters, the blanking assembly 3 is used for conveying grains conveyed by the feeding assembly 2 to the vibrating screen assembly 4, and different grains enter different branch pipes 32 under the action of the channel converters 33 so as to be conveyed to different vibrating screen assemblies 4;
the vibrating screen assemblies 4 comprise at least two vibrating screen assemblies 4, wherein different vibrating screen assemblies 4 are used for screening different grain seeds, all the vibrating screen assemblies 4 are arranged in the middle of the frame 6 at intervals along the vertical direction, the feed inlets of the vibrating screen assemblies 4 are in one-to-one correspondence with the branch pipes 32 of the blanking assembly 3 and are in butt joint with each other, and the vibrating screen assemblies 4 are preferably four and are used for screening common wheat, rice, soybean and corn;
The controller 5 is configured to select a corresponding sieve assembly 4 according to different kinds of grains, and to control each of the channel converters 33 so that the grains reach the selected sieve assembly 4 through the corresponding branch pipe 32. The grain type can be identified by manually inputting the grain type into the controller 5 through the control panel, or the camera can be arranged in the aggregate tank 1, and the controller 5 can automatically judge the grain type through the image identification technology.
The working process of the invention is as follows: the grain sent from the sampling system is temporarily stored in the collecting tank 1, after the detection personnel manually selects grain types or the controller 5 automatically identifies grain types, the controller 5 selects the vibrating screen assemblies 4 corresponding to the grain types to work, the rest vibrating screen assemblies 4 are closed, and meanwhile, all channel converters 33 are controlled, so that the pipeline from the top inlet of the main pipe 31 to the branch pipes 32 corresponding to the selected vibrating screen assemblies 4 is smooth, the rest branch pipes 32 are separated from the main pipe 31, then the feeding assembly 2 works, the grain is sent into the discharging assembly 3, and the grain is fed into the vibrating screen assemblies 4 to be screened. Therefore, the screening requirements of various grains can be met through one device, the whole device occupies small space, is convenient to manage and maintain, improves the efficiency of grain impurity screening and the accuracy of screening, and ensures the authenticity of grain impurity content detection data.
For the collection tank 1, as the current sampling system adopts a pneumatic conveying mode to convey grains, in order to adapt to the pneumatic conveying mode, the collection tank 1 of the invention comprises a tank body 11, an air suction pipe 12 and a feeding pipe 13 which are respectively positioned at the top and the side of the tank body 11, a discharge hole is arranged at the bottom of the tank body 11, a buffer pad 14 is arranged on the inner wall of the tank body 11, a buffer plate 15 is arranged in the middle of the tank body 11, the upper end of the buffer plate 15 is hung at the top of the tank body 11 through a hanging rope 151, and the plate surface of the buffer plate 15 is opposite to the feeding pipe 13. The cushion pad 14 and the cushion plate 15 can be made of silica gel, the cushion pad 14 can be fixed on the inner wall of the tank 11 in a sticking mode, and the lifting ropes 151 are preferably arranged side by side along the width direction of the cushion plate 15, so that the cushion plate 15 is prevented from being twisted when being impacted by grains. According to the invention, by arranging the buffer pad 14 and the buffer plate 15, most grains collide with the buffer plate 15 when entering the tank 11, most kinetic energy is absorbed by the buffer plate 15, and a small part of grains rebound to the peripheral buffer pad 14, so that 'soft landing' of the grains is realized, rigid collision of the grains and the tank 11 is avoided, the crushing condition of the grains in the conveying process is reduced, and the authenticity of grain index detection is further improved.
Different kinds of grains are different in suction requirements on pneumatic conveying, the speed of grains entering the tank 11 is reduced for better control of pneumatic conveying effect, the top of the tank 11 is connected with the air suction pipe 12 through the upper flange 16, a lower flange 17 is arranged below a discharge hole in the bottom of the tank 11, an upper pneumatic butterfly valve 161 and a lower pneumatic butterfly valve 171 are respectively arranged on the upper flange 16 and the lower flange 17, a first vibrating motor 18 is arranged on the outer wall of the tank 11, and a first high-pressure gas blowing nozzle 19 communicated with the tank 11 is arranged at the top of the tank 11. The upper pneumatic butterfly valve 161 is used for controlling the size of the air suction port, so as to control the size of the suction force, for example, when the air suction port is enlarged during the skewing inspection of large-particle soybeans, corn and the like, the suction force is increased, and when the air suction port is reduced during the skewing inspection of light grains such as wheat, rice and the like, the suction force is reduced. The lower pneumatic butterfly valve 171 is used for closing the discharge hole of the tank 11 when sucking grains, so that the gas suction force is concentrated in the feed pipe 13, and grain conveying is realized by utilizing lower suction force, thereby being beneficial to reducing the speed of grains entering the tank 11 and reducing grain breakage.
For the feeding assembly 2, as shown in fig. 5-7, the feeding assembly 2 comprises a feeding valve 21 and a dust collection mechanism 22 which are arranged between the bottom outlet of the aggregate tank 1 and the blanking assembly 3, a section of rectangular pipe 23 is arranged between the feeding valve 21 and the top inlet of the main pipe 31 of the blanking assembly 3, one end of the rectangular pipe 23, which is close to the feeding valve 21, is provided with a bending part 231, the inner wall of the bending part 231 comprises a first inclined surface 232 and a second inclined surface 233 which face the feeding valve 21, the first inclined surface 232 is positioned above the second inclined surface 233, the inclined directions of the first inclined surface 232 and the second inclined surface 233 are opposite, an adjusting plate 24 which is parallel to the second inclined surface 233 and can be inserted into the rectangular pipe 23 is arranged on the side, which is opposite to the adjusting plate 24, of the rectangular pipe 23 is provided with a dust collection opening 234, the dust collection opening 234 is positioned below the adjusting plate 24, and the dust collection mechanism 22 is in butt joint with the dust collection opening 234.
The first inclined surface 232 and the second inclined surface 233 are positioned in a relationship as shown in fig. 7, and the bearing surfaces of the first inclined surface 232 and the second inclined surface 233 face the feed valve 21. The thickness of the rectangular tube 23 and the size of the bent portion are required to satisfy, and the grain can be slid onto the second inclined surface 233 when it is slid onto the first inclined surface 232. The adjusting plate 24 is used for adjusting the distance between the end of the adjusting plate and the dust collection opening 234 according to the grain types, when grains are small, the adjusting plate 24 is extended inwards to a small extent, and grains are pulled outwards to a large extent, so long as the grains can fall from a position close to the dust collection opening 234. After the grains fall from the feeding valve 21, the grains collide with the first inclined surface 232 first and are dispersed towards the width direction of the first inclined surface 232, then collide with the second inclined surface 233, the grains are dispersed again, and finally the blanking surface of the grains is close to the dust collection opening 234 under the guidance of the regulating plate 24, so that the impurities are better sucked away by the dust collection mechanism 22, the workload of the follow-up vibration sieve assembly 4 can be reduced, and the grain impurity screening efficiency is improved. The first inclined surface 232 and the second inclined surface 233 can not only disperse grains, but also slow down the blanking speed of the grains, so that the dust collection mechanism 22 can conveniently suck most light impurities away.
For the installation mode of the adjusting plate 24, as shown in fig. 7, the lower end of the second inclined plane 233 is provided with a socket 235 at the position connected with the rectangular tube 23, the adjusting plate 24 is inserted into the rectangular tube 23 through the socket 235, one end of the adjusting plate 24 far away from the socket 235 is provided with a strip-shaped hole 241 with the length direction parallel to the insertion direction of the adjusting plate 24, the upper end of the outer side of the second inclined plane 233 is provided with a fixing plate 236, and the adjusting plate 24 is fixed on the fixing plate 236 through a bolt 25 penetrating through the strip-shaped hole 241. When the position of the adjusting plate 24 is to be adjusted, the bolt 25 is loosened, the adjusting plate 24 is moved along the bar-shaped hole 241, and the bolt 25 is tightened after the adjustment. The adjusting plate 24 is usually only required to be adjusted in place when the equipment is installed, the difference between different grains is not large, and a graduated scale or marks can be arranged beside the strip-shaped hole 241, so that the adjusting plate 24 can be quickly adjusted to the optimal position for different grains.
For the dust collection mechanism 22, the invention adopts the scheme that the dust collection mechanism 22 comprises a dust collection pipe 221 and a fan 222 arranged at one end of the dust collection pipe 221, the other end of the dust collection pipe 221 is in butt joint with a dust collection opening 234 on the rectangular pipe 23, the dust collection pipe 221 is of a structure with the middle high and two ends inclined downwards, a transparent observation window 223 is arranged on the side wall of the dust collection pipe 221, a second high-pressure gas blowing nozzle 224 communicated with the dust collection pipe 221 is arranged at the highest position in the middle of the dust collection pipe 221, a slag discharge pipe 225 is arranged below one end, close to the fan 222, of the dust collection pipe 221, and a gate valve 226 is arranged at a connection port of the slag discharge pipe 225 and the dust collection pipe 221. Since the blanking surface of the grains is close to the dust suction opening 234, it is inevitable that some grains are sucked into the dust suction pipe 221, therefore, the dust suction pipe 221 is specially arranged in a pointed arch shape, as shown in fig. 6, the grains sucked into the dust suction pipe 221 can slide downwards under the inclined surface on the right side and finally return to the rectangular pipe 23; the left slope is favorable for impurities to slide to the bottom of the dust suction pipe 221. In the feeding process, the gate valve 226 needs to be closed, so that the dust collection opening 234 becomes an independent air inlet, impurities are conveniently sucked, the gate plate 226 is opened after the air separation is finished, the impurities are discharged into the slag discharge pipe 225, and then the impurities are mixed with the impurities screened by the follow-up vibrating screen assembly 4, so that the grain impurity content is calculated. In addition, a gap is required between the lower end of the rectangular tube 23 and the top of the main tube 31 of the blanking assembly 3, so that when the fan 222 works, external air can enter the rectangular tube 23, and the air separation effect is ensured.
For the specific structure of the channel switch 33, the invention is preferably in the form of a turnover plate, as shown in fig. 8-11, in order to conveniently set the channel switch 33, the main pipe 31 and the branch pipe 32 of the discharging assembly 3 are both rectangular pipes, the channel switch 33 comprises a rotary cylinder 331 arranged outside the main pipe 31, a rotating shaft 332 of the rotary cylinder 331 is inserted into the main pipe 31 along the width direction of the main pipe 31, a baffle 333 is arranged on the rotating shaft 332, and the width of the baffle 333 is equivalent to the width of the main pipe 31. As shown in fig. 10, when the baffle 333 is rotated to the point that the upper end thereof contacts the left side wall of the main pipe 31, the lower end of the baffle 333 is flush with the inlet lower edge of the branch pipe 32 on the right side, at which time the main pipe 31 is blocked by the baffle 333, and grains can slide into the branch pipe 32 through the baffle 333; as shown in fig. 11, when the baffle 333 is rotated until its upper end contacts the right side wall of the main pipe 31, a gap remains between the lower end of the baffle 333 and the left side wall of the main pipe 31, and at this time, under the action of the baffle 333, the grains cannot enter the branch pipe 32 any more, but enter the lower main pipe 31 from the gap between the baffle 333 and the right side wall of the main pipe 31. The rotary shaft 332 should be provided on the side of the branch pipe 32 as much as possible so that the gap between the lower end of the baffle 333 and the right side wall of the main pipe 31 can be increased. Further, in order to avoid grain accumulating at the top of the baffle 333, a stop bar 34 with a triangular cross section may be disposed on the inner wall of the main pipe 31, the stop bar 34 is located above the contact position between the upper end of the baffle 333 and the main pipe 31, and the stop bar 34 can shield the top of the baffle 333, so that grain slides down through the inclined plane on the stop bar 34 and cannot accumulate at the contact position between the baffle 333 and the main pipe 31.
For the vibration screen assembly 4, in order to realize the separation of raw grains from large impurities and fine impurities, a double-layer screen structure is adopted, as shown in fig. 12 and 13, the vibration screen assembly comprises a fine grain screen layer 41, a raw grain screen layer 42 and a large impurity screen layer 43, which are sequentially arranged from bottom to top, wherein a large screen hole is formed in a large impurity screen area 431 of the large impurity screen layer 43, a small screen hole is formed in the raw grain screen area 421 of the raw grain screen layer 42, the grain size of the screened grains is smaller than the aperture of the large screen hole and larger than the aperture of the small screen hole, a fine impurity outlet 411, a raw grain outlet 422 and a large impurity outlet 432 are respectively formed in the same side of the fine grain screen layer 41, the raw grain screen layer 42 and the large impurity screen layer 43, a large impurity switch door 433 for isolating the large impurity screen area 431 and the large impurity outlet 432 is formed in the large impurity screen layer 43, the fine grain screen layer 41, the raw grain screen layer 42 and the large impurity screen layer 43 are connected with each other through a supporting column 44 on the periphery, and the bottom of the vibration screen layer 43 is connected with a second vibration damping frame 46 through a supporting column 44, and the bottom of the vibration screen frame 46 is connected with the bottom of the vibration screen assembly is provided with the second vibration screen frame 46. In order to facilitate discharging, the fine layer 41, the raw grain screen layer 42 and the large impurity screen layer 43 are inclined to one sides of the fine impurity outlet 411, the raw grain outlet 422 and the large impurity outlet 432 respectively, the inclination angles are all 6-8 degrees, the inclination angles of the fine layer 41, the raw grain screen layer 42 and the large impurity screen layer can be the same or different, the purpose of setting the inclination angles is that after screening is completed, grains and impurities can slide along inclined planes through vibration, and the grains and the impurities are collected in respective outlet prescriptions. Since grains may splash out of the large impurity screen layer 43 due to jumping when entering the large impurity screen layer 43 from above the vibration screen assembly 4, a baffle 47 may be disposed on one side of the top of the large impurity screen layer 43 away from the large impurity outlet 432, the baffle 47 and the peripheral frame of the large impurity screen layer 43 form a closed structure, and only a blanking port 471 is left in the middle, so that grains can be prevented from splashing out of the large impurity screen layer 43 to a great extent. In order to facilitate opening and closing the large grain opening and closing door 433 and the raw grain opening and closing door 423, the large grain opening and closing door 433 and the raw grain opening and closing door 423 may preferably be a turnover valve plate.
The sieving process of the vibrating sieve assembly 4 is as follows: before screening, the large impurity opening and closing door 433 and the raw grain opening and closing door 423 are closed, and then the second vibration motor 46 is started, and the screened grains enter the large impurity screening layer 43 from the branch pipe 32 of the discharging assembly 3; in the vibration process, since the large impurity opening and closing door 433 and the frame around the large impurity screen layer 43 form a large impurity screen area 431 with closed periphery, grains can be screened in the large impurity screen area 431 for a long time, so that grains and fine impurities enter the raw grain screen layer 42 below through large sieve holes; similarly, the raw grain switch door 423 and the frame of the raw grain screen layer 42 are also enclosed to form a closed raw grain screening area 421, after full screening, fine impurities enter the lower fine layer 41 through small screen holes, and grains are left on the raw grain screen layer 42; finally, the large impurity opening and closing door 433 and the raw grain opening and closing door 423 are opened, impurities are collected by the large impurity outlet 432 and the fine impurity outlet 411, grains are collected by the raw grain outlet 422, and thus the impurity screening work of the grains is completed, and the method is convenient and quick.
Further, since the plurality of vibrating screen assemblies 4 are provided in the vertical direction and the fine layer 41, the raw grain screen layer 42 and the large impurity screen layer 43 are overlapped, it is necessary to guide the grains and the impurities to different directions for the convenience of collecting the grains and the impurities. The invention is characterized in that a smooth large impurity guide groove 434 is arranged between a large impurity screening area 431 and a large impurity outlet 432 of the large impurity screening layer 43, a large impurity switch door 433 is arranged at the joint of the large impurity screening area 431 and the large impurity guide groove 434, a smooth raw grain guide groove 424 is arranged between a raw grain screening area 421 and a raw grain outlet 422 of the raw grain screening layer 42, a raw grain switch door 423 is arranged at the joint of the raw grain screening area 421 and the raw grain guide groove 424, a thin impurity guide groove 412 which is aligned with the large impurity guide groove 434 and has the same structure is arranged on the thin impurity layer 41, and the large impurity guide groove 434 and the raw grain guide groove 424 are biased to different sides of the vibrating screen assembly 4; all the raw grain outlets 422 of the vibrating screen assemblies 4 are butted in the vertical direction and are collected through the raw grain collecting boxes 8 at the bottom of the frame 6, and all the large impurity outlets 432 and the fine impurity outlets 411 are butted in the vertical direction and are collected through the impurity collecting boxes 9 at the bottom of the frame 6. In addition, the deslagging pipe 225 of the feeding assembly 2 can also be arranged to be aligned with the large impurity outlet 432 and the fine impurity outlet 411 so as to weigh the impurities uniformly.
In the actual screening process, the large impurity screen layer 43 is not easy to catch materials because the screen holes are large, but the screen holes of the raw grain screen layer 42 are small, so that the situation of catch materials is often caused. Therefore, in order to avoid that grains or impurities are blocked in small sieve holes and influence the subsequent screening, the invention preferably further comprises a cleaning assembly 7, as shown in fig. 13 and 14, wherein the cleaning assembly 7 comprises a brush 71 arranged below the raw grain sieve layer 42, the brush 71 is contacted with the bottom surface of the raw grain sieve layer 42, preferably the brush 71 is in a bending state, the length of the brush 71 is equal to the width of the raw grain sieve layer 42, each vibrating sieve assembly 4 corresponds to one brush 71, all the brushes 71 are arranged on a bracket 72, the bracket 72 is connected with a cylinder 73 on the frame 6, and the expansion direction of the cylinder 73 is parallel to the length direction of the raw grain sieve layer 42. The brush hair of the brush 71 can be made of harder nylon, polyester fiber or polyethylene, and when the brush hair 71 is driven by the air cylinder 73 to move back and forth, the brush hair can pass through the sieve holes on the raw grain sieve layer 42 under the action of self elasticity, so that grains or impurities clamped in the sieve holes are cleaned. Because the brush 71 is rigidly connected to the external structure, a notch 425 for the brush 71 to rest on may be provided at the bottom of the grain screen 42 at the end away from the grain outlet 422 in order to avoid the brush 71 from affecting the vibration of the grain screen 42. When grain is sieved, the brush 71 is positioned in the notch 425 and is not in contact with the raw grain sieve layer 42, so that vibration of the raw grain sieve layer 42 is not affected, the cylinder 73 is started after sieving is completed, and the screen of the raw grain sieve layer 42 is cleaned by the brush 71.
Claims (10)
1. A many grain seeds sieve machine that shakes for grain is inserted and is examined, its characterized in that:
Comprises a frame (6), a material collecting tank (1), a material feeding component (2), a material discharging component (3), a vibrating screen component (4) and a controller (5) which are arranged on the frame (6);
The material collecting tank (1) is positioned at the top of the frame (6), the feeding assembly (2) is positioned below the material collecting tank (1), and the bottom outlet of the material collecting tank (1) is butted with the top inlet of the feeding assembly (2);
The blanking assembly (3) is positioned below the feeding assembly (2), the blanking assembly (3) comprises a main pipe (31) which is vertically arranged and at least two branch pipes (32) which are arranged on the main pipe (31) at intervals, the top inlet of the main pipe (31) is in butt joint with the bottom outlet of the feeding assembly (2), a channel converter (33) is respectively arranged at the position, connected with each branch pipe (32), in the main pipe (31), of each main pipe (31), and the channel converters (33) are used for controlling grains reaching the position of the channel converters to enter the main pipe (31) below the channel converters or the branch pipes (32) corresponding to the channel converters;
The vibrating screen assemblies (4) comprise at least two vibrating screen assemblies (4) for screening different grain seeds, all the vibrating screen assemblies (4) are arranged in the middle of the frame (6) at intervals along the vertical direction, and the feed inlets of the vibrating screen assemblies (4) are in one-to-one correspondence and butt joint with the branch pipes (32) of the blanking assembly (3);
the controller (5) is configured to select a corresponding vibrating screen assembly (4) according to different kinds of grains, and to control each channel switch (33) so that the grains reach the selected vibrating screen assembly (4) through a corresponding branch pipe (32).
2. The multi-grain seed sieve machine for grain skewer inspection of claim 1, wherein: the utility model provides a collection material jar (1) is including jar body (11) and be located breathing pipe (12) and inlet pipe (13) of jar body (11) top and side respectively, jar body (11) bottom is equipped with the discharge gate, be equipped with blotter (14) on the inner wall of jar body (11), jar body (11) middle part is equipped with buffer board (15), and the upper end of buffer board (15) is hung at jar body (11) top through lifting rope (151), and the face of buffer board (15) is just to inlet pipe (13).
3. The multiple grain seed sieve machine for grain skewer inspection of claim 2, wherein: the utility model discloses a jar of jar body (11), including jar body (11) and jar body (11), jar body (11) top is equipped with jar body (11) and is equipped with pneumatic butterfly valve (161) and pneumatic butterfly valve (171) down respectively on jar body (11) top through last ring flange (16) and breathing pipe (12), jar body (11) top be equipped with jar body (11) the first high-pressure gas of intercommunication blow spout (19).
4. The multi-grain seed sieve machine for grain skewer inspection of claim 1, wherein: the feeding assembly (2) comprises a feeding valve (21) and a dust collection mechanism (22) which are arranged between an outlet at the bottom of the material collecting tank (1) and the blanking assembly (3), a section of rectangular pipe (23) is arranged between the feeding valve (21) and the top inlet of a main pipe (31) of the blanking assembly (3), one end, close to the feeding valve (21), of the rectangular pipe (23) is provided with a bending part (231), the inner wall of the bending part (231) comprises a first inclined surface (232) and a second inclined surface (233) which face the feeding valve (21), the first inclined surface (232) is located above the second inclined surface (233), the inclined directions of the first inclined surface and the second inclined surface (233) are opposite, an adjusting plate (24) which is parallel to the second inclined surface (233) and can be inserted into the rectangular pipe (23) is arranged on one side, opposite to the adjusting plate (24), of the rectangular pipe (23), of the dust collection opening (234) is located below the adjusting plate (24), and the dust collection mechanism (22) is in butt joint with the dust collection opening (234).
5. The multi-grain seed sieve machine for grain skewer inspection of claim 4, wherein: the part that second inclined plane (233) lower extreme and rectangular pipe (23) link to each other is equipped with socket (235), in rectangular pipe (23) are inserted through socket (235) adjusting plate (24), one end that socket (235) was kept away from to adjusting plate (24) is equipped with bar hole (241) that length direction and adjusting plate (24) insert the direction parallel, the upper end in the outside of second inclined plane (233) is equipped with fixed plate (236), adjusting plate (24) are fixed on fixed plate (236) through bolt (25) that pass bar hole (241).
6. The multi-grain seed sieve machine for grain skewer inspection of claim 4, wherein: the dust absorption mechanism (22) comprises a dust absorption pipe (221) and a fan (222) arranged at one end of the dust absorption pipe (221), the other end of the dust absorption pipe (221) is in butt joint with a dust absorption opening (234) on a rectangular pipe (23), the dust absorption pipe (221) is of a structure with a middle height and two ends inclined downwards, a transparent observation window (223) is arranged on the side wall of the dust absorption pipe (221), a second high-pressure gas blowing nozzle (224) communicated with the dust absorption pipe (221) is arranged at the highest position in the middle of the dust absorption pipe (221), a slag discharge pipe (225) is arranged below one end, close to the fan (222), of the dust absorption pipe (221), and a gate valve (226) is arranged at the connecting port of the slag discharge pipe (225) and the dust absorption pipe (221).
7. The multi-grain seed sieve machine for grain skewer inspection of claim 1, wherein: the utility model provides a be responsible for (31) and branch pipe (32) of unloading subassembly (3) are rectangular pipe, passageway converter (33) are including setting up revolving cylinder (331) in the outside of being responsible for (31), and revolving cylinder (332) of (331) insert in being responsible for (31) along being responsible for (31) width direction, be equipped with baffle (333) on pivot (332), the width of baffle (333) is equivalent with the width of being responsible for (31), and when baffle (333) rotate to its upper end and be responsible for the right side wall contact of (31), the entry lower edge of branch pipe (32) on the left of baffle (333) flushes, and when baffle (333) rotate to its upper end and be responsible for the left side wall contact of (31), still leave the clearance between baffle (333) lower extreme and the right side wall of being responsible for (31).
8. The multi-grain seed sieve machine for grain skewer inspection of claim 1, wherein: the utility model provides a vibrating screen subassembly (4) is equipped with big sieve mesh including from down up take thin layer (41) of frame all around, raw grain sieve layer (42) and big miscellaneous sieve layer (43) that set gradually, be equipped with big sieve mesh in big miscellaneous sieve area (431) of big miscellaneous sieve layer (43), be equipped with little sieve mesh in raw grain sieve area (421) of raw grain sieve layer (42), be less than the aperture of big sieve mesh by the particle diameter of sieve grain, be greater than the aperture of little sieve mesh, same side of thin layer (41), raw grain sieve layer (42) and big miscellaneous sieve layer (43) is equipped with thin miscellaneous export (411), raw grain export (422) and big miscellaneous export (432) respectively, be equipped with on the big miscellaneous sieve layer (43) and keep apart big miscellaneous sieve area (431) and big miscellaneous export (433), be equipped with on raw grain sieve layer (42) keep apart raw grain sieve area (421) and raw grain switch door (423) of raw grain export (422), thin layer (41), thin layer (42) and raw grain sieve layer (42) and big miscellaneous sieve layer (43) are equipped with vibration damping support column (46) bottom portion (46) are connected together through thin layer (44) below (46).
9. The multi-grain seed sieve machine for grain skewer inspection of claim 8, wherein: a smooth large impurity guide groove (434) is arranged between a large impurity screening area (431) and a large impurity outlet (432) of the large impurity screening layer (43), a large impurity switch door (433) is arranged at the joint of the large impurity screening area (431) and the large impurity guide groove (434), a smooth raw grain guide groove (424) is arranged between a raw grain screening area (421) and a raw grain outlet (422) of the raw grain screening layer (42), a raw grain switch door (423) is arranged at the joint of the raw grain screening area (421) and the raw grain guide groove (424), a fine impurity guide groove (412) which is aligned with the large impurity guide groove (434) and has the same structure is arranged on the fine impurity layer (41), and the large impurity guide groove (434) and the raw grain guide groove (424) are biased to different sides of the vibrating screen assembly (4); all the grain outlets (422) of the vibrating screen assemblies (4) are butted in the vertical direction, and all the big impurity outlets (432) and the fine impurity outlets (411) are butted in the vertical direction.
10. The multi-grain seed sieve machine for grain skewer inspection of claim 8, wherein: still include clearance subassembly (7), clearance subassembly (7) are including setting up brush (71) in the below of former grain sieve layer (42), brush (71) are contacted with the bottom surface of former grain sieve layer (42), and the length of brush (71) is equivalent with the width of former grain sieve layer (42), and every shakes and sieves subassembly (4) and correspond one brush (71), and all brushes (71) are installed on support (72), cylinder (73) on support (72) and frame (6) link to each other, the flexible direction of cylinder (73) is parallel with the length direction of former grain sieve layer (42).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3116699A1 (en) * | 1981-04-28 | 1982-11-11 | Niko Konserven-Maschinenfabrik Hinsbeck Gmbh & Co Kg, 4054 Nettetal | Device for grading fruit or vegetables |
| US4555330A (en) * | 1983-08-29 | 1985-11-26 | Midwestern Industries, Inc. | Method and apparatus for separating material |
| US20160264273A1 (en) * | 2015-03-13 | 2016-09-15 | NPK Packaging, LLC | Automatic Grading, Sorting and Packaging System |
| CN217512304U (en) * | 2022-05-17 | 2022-09-30 | 四川泸石高速公路有限责任公司 | Civil engineering is with categorised sand sieving machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205868755U (en) * | 2016-04-01 | 2017-01-11 | 程福勇 | But automatic classification's waste classification is quick -witted |
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| Title |
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| 粒度精确分级筛筛分效率的试验研究;黄志建;马胜钢;董贯中;卢丽;;矿山机械;20081010(19);106-108 * |
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