JP2014180653A - Rough selector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of requiring long hours for maintenance work, since foreign matter is scattered and mixed again in an unhulled rice grain side or selection clogging is easily caused in an upper net and lower net part of a selector, when the foreign matter and the unhulled rice grain roughly selected by a rough selector are taken out to an approached takeout port position.SOLUTION: A forward-downward inclined upper net 3 for selecting straw chips and gravels while rocking and transferring unhulled rice to the front side by receiving supply of the unhulled rice, a backward-downward inclined lower net 4 for receiving and selecting the unhulled rice leaking down from this upper net 3, and a forward-downward inclined bottom plate 5 for rocking and transferring fine foreign matter to the front side by receiving the fine foreign matter leaking down from this lower net 4, are installed in a vertically folding-back state in a rocking shelf frame 2. A third port 6 for discharging the straw chips flowing down from a front end part of the upper net 3 and a fourth port 7 for discharging the foreign matter flowing down from an upper end part of the bottom plate 5, are provided in a front end part of the rocking shelf frame 2, and a first port 8 for discharging the unhulled rice flowing down from the lower net 4 is provided in a rear end part of the rocking shelf frame 2.

Description

  TECHNICAL FIELD The present invention relates to a coarse sorting device that sorts rice grains to be supplied to a rice huller or the like, and includes a rice plant that stores harvested rice cake, a rice drying plant, a rice huller, a rice hull mill, and the like. It can be used as a partial rough sorting device, and sorts and removes foreign matters such as straw scraps, sand and gravel, and other foreign matters mixed in the grains.

  A technique in which an upper net and a lower net are arranged in two upper and lower parallel shapes and inclined forms, and raw paper is supplied from the upper end side of the inclination, and the selection is performed while flowing down to the lower end side of the inclination (for example, Patent Document 1). See).

Japanese Patent Laid-Open No. 55-167071

  Harvested raw straw may contain a large amount of foreign substances such as straw scraps and gravel. In order to sort and remove these foreign substances with a coarse sorter, a simple and highly efficient coarse sorting process is performed. Therefore, it is necessary to supply the main body to a rice huller for processing purposes or a dryer. For this reason, when the roughly sorted foreign matter and the soot are taken out to the close exit position, the foreign matter is scattered and mixed again to the side of the soot sorting position, and the upper and lower screens of the sorting device Therefore, the maintenance work for dealing with these often requires a long time.

  According to the first aspect of the present invention, straw scraps, gravel, and the like are sorted while receiving the supply of firewood to the swing shelf frame (2) swingably supported with respect to the gantry (1). The upper net (3) in the inclined posture and the lower net (3) in the opposite direction to the upper net (3) for receiving fine particles such as gravel while leaking and transporting the traps from the upper net (3). 4) and a bottom plate (5) in an inclined posture that receives and moves fine foreign matters leaking from the lower net (4) are mounted in the vertical direction and flow down from the conveying end of the upper net (3). One end side of the swinging shelf frame (2) includes a third port (6) for discharging the waste straw and a fourth port (7) for discharging foreign matter flowing down from the conveying terminal portion of the bottom plate (5). The rough sorting is characterized in that the first port (8) for discharging the sticky rice flowing down from the lower net (4) is provided on the other end side of the swing shelf frame (2). And location.

According to a second aspect of the present invention, there is provided the rough sorting device according to the first aspect, wherein the scraper (9) slidably contacting the lower surface of the upper net (3) is disposed at a set interval in the transport direction.
According to the third aspect of the present invention, the upper end network (3) and the scraper (9) are defined as the transport end section network (3F) and the transport end section scraper (9F). ) Is provided so as to be attachable to and detachable from the transport unit network (3R) on the transport start end side and the transport unit scraper (9R), and the upper surface of the transport start end unit of the lower net (4) can be released. A rough sorting device according to claim 1 or claim 2 characterized in that.

  According to a fourth aspect of the present invention, in the upper part of the swinging shelf frame (2), a funnel (10) for feeding and feeding a soot and a sorting wind for wind-selecting the soot fed from the funnel (10). A path (11), a suction blower (12) for sucking and blowing selected air into the selected air path (11), a soot that has been air-selected in the selected air path (11), and a trap (13 ), A wind sorting device (15) comprising the second port 14 and the like, and the crash opening (13) of the sorting air channel (11) is connected to the rear end of the upper net (3) of the swing shelf frame (2). The sorting air passage (11) of the wind sorting device (15) is inserted into the upper surface portion, and the net shelf room (17) between the upper net (3) and the lower net (4) via the wind tube (16). The coarse sorting device according to any one of claims 1 to 3, wherein the dust is discharged from the net shelf room (17).

  According to the first aspect of the present invention, the wrinkle swing selection process is formed so that the inclined surface direction is reversed in the front-rear direction, and the upper net 3 of the upper part of the swing transfer is changed from the lower net 4 of the middle part. After that, by swinging and moving to the bottom plate 5 of the lower stage while being moved downward, it is moved back and forth in a folded or zigzag manner even if it is formed into a compact coarse sorting device. The sorting process can be maintained for a long time, and a simple sorting shelf can be formed. The size can be reduced, and high efficiency and high performance rough sorting can be performed.

  In addition, since the first port is disposed on the rear end side of the swinging shelf frame 2 and the third port 6 and the fourth port 7 are disposed on the front end side, each piece of straw scraps, debris, etc. having different sizes is arranged. Since the foreign matter discharge processing is arranged as the third port 6 and the fourth port 7 close to the front end side of the swing shelf frame 2, the foreign matter processing can be facilitated.

  In addition, the finely-sorted sized rice cake is located on the rear end side opposite to the third port 6 or the fourth port 7 and is taken out while maintaining the selected state in the first port 8 of the installation. It is possible to reduce the possibility that foreign matter discharged into the third port 6 or the fourth port 7 will be mixed again with respect to the granules.

  Since the scraper 9 is slidably contacted with the lower surface of the upper net 3 to which the coarse foreign matter is oscillated and moved as described above, the configuration is simplified and the upper surface of the upper net 3 is formed by the scraper 9. In order to reduce the stagnation and clogging phenomenon of foreign matters over the whole process before and after the operation, the maintenance operation by the operator can be reduced.

  Then, the scraper 9 scrapes off and removes foreign matter protruding from the lower surface of the upper mesh 3, and the stuck foreign matter is pushed up to the upper surface side of the upper mesh 3, so that a smooth swing transfer action can be performed. The entire surface of the upper mesh 3 can be maintained in a good mesh state.

  The invention according to claim 3 is such that the front end portion interval between the upper net 3 and the lower net 4 mounted in a folded form on the swing shelf frame 2 is formed narrow, so that straw scraps and the like are easily clogged. However, the transfer terminal section network 3F, the transfer terminal section scraper 9F, and the like that are superposed on the upper part of the lower net 4 are attached to and detached from the transfer section network 3 and the transport section scraper 9R, and turn up and down to form the transfer terminal section. Since the upper space between the scraper 9F and the upper surface of the front end of the lower net 4 can be opened, it is possible to easily and easily remove foreign matters such as straw scraps and perform cleaning operations. 3, by opening a part of the transport end part scraper 9 </ b> F of the scraper 9 and only a part of the transport end part scraper 9 </ b> F, it is possible to easily clean the upper surface part of the lower net 4 on the rear rear side. .

  Furthermore, the net shelf chamber 17 formed with a narrow vertical distance between the front end portion of the upper net 3 and the front end portion of the lower net 4 is used as a folded portion between the front end portion of the upper net 3 and the front end portion of the lower net 4. By forming the form with a narrow vertical interval, the height of the airframe can be made low, and the maintenance can be facilitated.

  The invention described in claim 4 can effectively use the rear part on the swinging shelf frame 2 to form a compact coarse sorting machine as a whole, and the upper part of the sorting air passage 11 parts. Can effectively and smoothly perform the rough sorting action by stepped downflow by the wind selection at the bottom and the sorting of the folded form by the upper net 3, the lower net 4, and the bottom plate 5 at the lower stage. it can. In addition, since the sorting air in the sorting air passage 11 at the upper stage sucks and discharges the dust in the net shelf chamber 17 at the lower stage, the structure is simplified, and the dust on the lower mesh 4 surface which is the first thing is removed. Can be carefully selected. Further, since the connection between the upper sorting air passage 11 and the lower net rack chamber 17 is provided with the wind tube 16 communicating between these rear ends, the configuration can be simplified. If the wind tube 16 is configured to be attached / detached or opened / closed, cleaning, maintenance, and the like in the net shelf chamber 17 and the sorting air passage 11 can be easily and easily performed.

A side view of a rough sorter. The plan view. The side view of a rocking shelf frame part. The side view which shows the one part operation state. The plan view (A) and a part of the front view (B). The top view (A), the side view (B), the front view (C), and the front sectional view (D) which shows the one part action state. The side view of a wind-tube attachment part. Side views (A) and (B) of the scraper adjusting part and a rear view (C) of the U-shaped tool part.

  On the basis of the drawings, the rough sorting apparatus is driven by a motor 18 on a swing shelf frame 2 provided with an upper net 3, a lower net 4, a bottom plate 5, a scraper 7 and the like on the inner side of a cubic base 1. An air funnel 15 is formed that swings by a crank mechanism 19 and forms an induction funnel 10 that feeds the housed raw material at the top of the gantry 1 and a sorting air passage 11 through which suction air is passed by a suction blower 12. It is equipped with.

In the present embodiment, the transport end side of the upper network 3 (the transport start end side of the lower network 4) is referred to as the front side, and the transport start end side of the upper network 3 (the transport end side of the lower network 4) is referred to as the rear side.
In the swing shelf frame 2, an upper net 3 and a lower net 4 in the form of a mesh board are arranged in the form of two upper and lower shelves, and the upper net 3 has a rear end side at a high position and a front end side. The lower net 4 on the lower side is provided on the rear down inclined surface which is inclined opposite to the inclination direction of the upper net 3 so as to be in a low position. Therefore, the straw supplied to the upper surfaces of the upper net 3 and the lower net 4 sorts straw debris, gravel and the like while being swung down the inclined surface in the downward direction. The scraper 9 slidably in contact with the lower surface of the upper net 3 is configured as a brush scraper in which a holder 21 for fixing the brush 20 is mounted between the left and right support frames 22, and the arrangement interval C in the front-rear direction of each scraper 7 is appropriately set. And it is arranged and configured in a multi-row, parallel configuration.

  Here, the upper net 3 of the front downward inclination which sorts straw scraps, gravel, etc. while receiving the supply of the basket to the swing shelf frame 2 swingably supported with respect to the gantry 1 and swinging and transporting it to the front side, In response to the dredging leaked from the upper net 3, the fine nets such as sand and gravel are screened out while being flowed down to the rear side, and the lower net 4 falling downward and the fine foreign substances leaking from the lower net 4 are received. A bottom plate 5 which is inclined forward and downward to be oscillated and transferred to the front side is attached in a vertically folded form, and a third port 6 for discharging straw waste flowing down from the front end of the upper net 3 and a front end of the bottom plate 5 A fourth port 7 for discharging the foreign matter that flows down is provided at the front end of the swing shelf frame 2, and the first port 8 for discharging the rice that flows down from the lower net 4 is the rear end of the swing shelf frame 2. It is set as the structure provided in a part.

  The upper net 3, the lower net 4, and the bottom plate 5 are swung by swinging the swing rack moving frame 2. When the raw iron is supplied to the upper surface of the upper end of the rear end of the upper net 3, the upper surface of the upper net 3 is oscillated and transferred to the front end (lower end). Foreign matter is leaked from the upper net 3 onto the lower net 4 surface, and the straw scraps transferred to the front end side of the upper net 3 flow down from the front end to the third port 6 at the lower part and discharged. Is done. The dust particles that have leaked to the surface of the lower net 4 are oscillated and transferred along the direction of inclination of the lower end of the lower net 4 while the mixed fine foreign matter is transferred from the lower net 4 to the lower base plate 5 surface. The finely selected soot grains flow down from the rear end to the first mouth 8 immediately below. The fine foreign matter received on the surface of the bottom plate 5 flows down to the inclined lower end side, that is, the front end side by the swing of the bottom plate 5, and flows down to the fourth port 7 immediately below and is discharged.

  Sorted items leaking from the upper mesh 3 and the lower mesh 4 are collected on the upper side of the front end portion of the lower mesh 4 while collecting the collected items received on the lower flow side by the receiving plates 37 and 39 on the lower side. Supply or supply to the upper surface of the rear end portion of the bottom plate 5 to form a long swing selection process on each lower mesh 4 surface and the bottom plate 5 surface, but instead of such a configuration, directly It is also possible to adopt a form that is received on the upper surface of the lower net 3 or the upper surface of the bottom plate 5.

In addition, scrapers 9 that are in sliding contact with the lower surface of the upper net 3 are disposed at appropriate intervals in the front-rear direction.
While the raw iron supplied to the upper surface of the upper net 3 is swung to the front end side, the fine grains and smaller foreign matters are leaked from the upper net 3, and the upper surface of the upper net 3 is moved to the front end portion. The foreign matter oscillated and moved to the third outlet 6 is discharged. In such a sorting action on the upper surface of the upper net 3, foreign matter such as large straw debris and gravel easily clogs the mesh of the upper net 3, and if a clogged portion is locally generated, the sorting performance tends to be lowered. However, the scraper 9 is in sliding contact with the lower surface of the upper mesh 3 that performs the rocking selection action, and the clogged foreign matter protruding from the lower surface of the upper mesh 3 is scraped away and pushed up to the upper surface side of the upper mesh 3. The rocking transfer action is performed. In this way, the scraper 9 acting on the lower surface of the upper net 3 can maintain the open state of the mesh and the state of leakage selection well without impeding resistance to the rocking movement of the raw material on the upper surface of the upper net 3. , Perform high-performance coarse sorting.

  Further, the front end portion of the upper net 3 and the scraper 9 is used as a transfer end portion network 3F and a transfer end portion scraper 9F, which can be attached to and detached from each of the transfer portion networks 3R or the transfer portion scraper 9R or turn up and down. The upper surface of the front end portion of the lower net 4 is releasable.

  The upper net 3 on which the swing shelf frame 2 is mounted and the scraper 9 are integrally swung, and the raw iron supplied to the upper surface of the upper net 3 is swung and transferred, The fine foreign matter such as fine straw dust and sand gravel leaks from the mesh of the upper mesh 3 to the lower mesh 4 surface, and the coarse foreign matter remaining on the upper surface of the upper mesh 3 is oscillated and transferred from the front end. It flows down to No. 3 outlet 6. The soot particles and fine foreign matters selected on the upper surface of the upper net 3 are taken out to the first port 8 at the rear end while the lower net 4 is being oscillated and transferred to the rear end side. The fine foreign matter that has leaked through the 4 mesh is received by the bottom plate 5 surface and discharged to the fourth port 7 at the front end. In such a sorting operation, when the upper surface of the upper net 3 is clogged with straw scraps or the like, the upper cover or the like covering the upper side of the upper surface 3 is opened to remove the upper surface straw scraps or sand gravel.

  In addition, when the straw scraps engaged with the lower surface of the upper mesh 3 or the scraper 9 stagnate or the upper surface of the lower mesh 4 is clogged with straw scraps or gravel, the transport end network 3F of the front end portion of the upper mesh 3 is shaken. The moving shelf frame 2 is removed from the transfer unit network 3, or the transfer end unit network 3F is erected upward with respect to the transfer unit network 3R to open the upper surface of the scraper 9, and the lower surface of the upper net 3 or Remove the straw scraps, etc., stuck in 9 parts of the scraper by hand. Further, in such a manner that the upper surface of the front end portion of the lower net 4 can be opened as well, straw scraps and the like on the upper surface of the lower net 4 can be removed. Further, when cleaning foreign matter such as straw scraps on the upper surface of the lower mesh 4, the transfer terminal end network 3F and the transfer end scraper 9F are removed from the transfer unit network 3R and the transfer unit scraper 9R or stood upward. Rotate to open the front upper surface of the lower net 4 for easy cleaning.

In the present embodiment, the conveyance end section network 3F is removed, and the conveyance end section scraper 9F is rotated upward around the hinge 57 at the rear end, thereby opening the upper surface of the lower net 4 on the conveyance start end side.
In this way, after cleaning the lower surface of the upper net 3, the scraper 9 or the upper surface of the lower net 4, the transfer terminal end network 3F, the transfer end scraper 9F, etc. are attached, or fallen and rotated. Thus, the same inclined surface as that of the transport unit network 3R or the transport unit scraper 9R is returned to the form of swinging as the upper screen 3 and the scraper 9, so that the rough sorting operation can be performed.

  In addition, a funnel 10 that feeds and feeds soot, a sorting air passage 11 that winds the soot that is fed from the funnel 10, and a sorting air to the sorting air passage 11 are sucked into the upper part of the swing shelf frame 2. There is provided a wind selection device 15 comprising a suction blower 12 for ventilating, a kite selected by the sorting air passage 11, a fall port 13 for receiving a second thing, a second mouth 14, and the like. The sorting air passage 11 of the wind selector 15 is passed through the wind tube 16 at the rear end of the swing shelf frame 2 so that the drop port 13 is looked over the upper end portion of the upper net 3 of the swing shelf frame 2. Then, the dust is discharged into the net rack chamber 17 through the net rack chamber 17 between the upper net 3 and the lower net 4.

  The raw material supplied to the funnel 10 above the gantry 1 is selected by the sorting air flowing through the sorting air passage 11 by the suction blower 12. The soot grains wind-selected in the sorting air passage 11 and the straw gravel and gravel having a large specific gravity are supplied from the well 13 to the rear upper surface of the upper mesh 3 of the swing shelf frame 2 at the position immediately below, and this upper mesh is supplied. No. 3 or lower net 4 or the like, but the second thing such as straw scraps and immature straws with low specific gravity, which are wind-selected in the sorting air passage 11, is sorted into the second mouth 14 and is the lightest. Dust is sucked and conveyed through the sorting air passage 11 to the suction blower 12 and discharged outside the apparatus.

  In this way, the suction air for suction sorting and conveyance by the suction blower 12 is sucked into the wind tube 16 from the mesh shelf chamber 17 where the upper mesh 3 and the lower mesh 4 are arranged in the swing shelf frame 2 part. Thus, the raw air fed from the funnel 10 is mainly wind-selected while the fine dust generated in the net shelf chamber 17 is sucked and discharged. Since the wind selection device 15 is configured to be stacked above the rear part of the swing shelf frame 2, the arrangement configuration of the wind tube 16 that connects between the sorting air path 11 and the net shelf chamber 17 is set as the swing shelf. The rear end portion of the frame 2 can protrude from the rear wall surface of the gantry 1 and can be detachable, and can easily suck and discharge regardless of the size of the configuration. It can be.

  The scraper 7 has a support posture in which the support frame 22 is supported on the frame side of the gantry 1 and is not fixed by the crank mechanism 19 and is always fixed at a fixed position. The lower surface of the moving net 3 is brought into sliding contact to clean the lower surface of the upper net 3. A bracket 25 having a crank-shaped support shaft 24 that supports the support frame 22 at a plurality of positions in the front and rear directions is disposed on the side frame 23 of the gantry 1, and the support frame 22 is attached by a cam 28 portion of the support shaft 24. Then, the cam 28 angle of the support shaft 24 is rotated and adjusted by the lock nut 27 of the adjustment groove 26 to adjust the support height of the support frame 22 and the scraper 7 to the high position H and the low position L. be able to. In addition, a clogging prevention mechanism 31 that presses and supports the roller 30 at the front end of the rod 29 is provided at the lower rear end of the support frame 22 of the scraper 7. 33, and the sliding contact pressure of the brush 20 against the lower surface of the upper net 3 can be adjusted. The right and left ends of the square bar 33 are fixed to the side frame 23 at the rear part of the gantry 1, and the inner side of the square bar 33 is inserted through the hole 35 of the side plate 34 of the swing shelf frame 2.

  A sink plate 36 is provided at the rear end portion of the upper net 3 of the swing shelf frame 2, receives the soot supplied from the falling port 13 of the upper wind-selecting device 15, and transports it to the upper surface of the upper net 3. . A receiving plate 37 is provided below the upper mesh 3 and the scraper 9, and the particles and fine foreign matters leaking from the upper mesh 3 are received and flowed down to the front side. It is a form in which it flows down to the upper surface of the lower net 4 from the turn-back port 38 through the upper surface of the front end portion. In addition, a receiving plate 39 having a rearward and downward inclined surface is provided along the lower side of the lower net 4, and when the fine foreign matter leaking from the lower net 4 is received, the swing shelf frame 2 is Look over the upper surface of the rear end of the bottom plate 5 located at the lowest part.

  At the rear end portion of the swing shelf frame 2, a heel outlet 41 for discharging the cocoon particles flowing out from the lower net 4 is formed at the rear side portion of the gantry 1, and the lower end portion of the heel outlet 41 is looked over. The first mouth 8 and the first spiral shaft 42 are provided. The first spiral shaft 42 is conductively rotated by the motor 18, receives the granules flowing down from the width of the lower mesh 4, and collects it to the first port 8. The hull taken out from the first port 8 is conveyed and supplied to the hulling machine in the next stroke through a shooter or the like in the hulling adjustment mode.

  In addition, the front end of the swing shelf frame 2 is provided with a third port 6 for viewing the front end of the upper net 2 and a fourth port 7 for viewing the front end of the bottom plate 5. A discharge chute 44 is arranged on the front side of the chamber 43.

  The upper and lower spacing portions of the upper net 3, the scraper 9, the receiving plate 37 and the lower net 4 of the swing shelf frame 2 are formed so that the front end side is narrowed up and down, and the rear end side is formed wide up and down. 17, the rear end portion of the net rack chamber 17 is opened, and the opening 45 portion is mounted on the upper portion of the gantry via the wind tube 16 attached to the rear side surface of the gantry 1 frame. The sorting air passage 11 is communicated with the rear end air inlet 46. The wind tube 16 is hung by engaging a hook 47 formed in the front lower inclined groove on the upper end portion with the pin 48 on the frame side portion of the wind selection device 15 and suspending the wind tube 16 by the inclined groove of the hook 47. The bolt 50 can be inserted into and fixed to the lower end portion of the bracket 49 on the gantry 1 side so as to be strongly pressed against the rear side surface portion of the gantry 1 while moving down.

  A front cover 51 that can be opened and closed is provided on the front wall portion of the swing shelf frame 2 that faces the upper side of the upper net 3 and the scraper 9. By opening the front cover 51, the swing cover frame 2 is separated from the swing shelf frame 2. The upper net 3, the scraper 9, etc. can be removed and taken out forward. Further, when the upper net 3 and the scraper 9 are taken out, the lower net 4 can also be taken out.

  The upper net 3 and the scraper 9 are configured as a conveyance end portion network 3F and a conveyance unit scraper 9R in a form in which the length D can be divided appropriately. The transport unit network 3R and the transport unit scraper 9R are fixed to the outer peripheral rectangular net frame 55 and the scraper frame 56, and the transport end unit network 3F and the transport end unit scraper 9F are connected to the net frame 55 and the scraper frame 56, respectively. Removably attach to. Alternatively, the scraper 9F can be configured to be rotatable upward around the hinge 57 at the rear end.

  A sink plate 36 and a transport unit network 3R are attached to the inside of the mesh frame 55, and a front end edge of the transport unit network 3R is fixed on a mesh bar 58 at the front of the mesh frame 55. The conveyance end section network 3F connected to the front end of the conveyance section network 3R is formed with a rectangular small mesh frame 59 on the outer periphery, and the small mesh frame 59 is connected to the network frame 58 on the front side of the conveyance section network 3R. It can be fitted with a mesh window portion 60 formed by the mesh frame 55 portion and fixed with a latch 61. Handles 62 are formed on the left and right ends of the small net frame 59 to facilitate the attaching / detaching operation of the transfer terminal end network 3F to the net frame 55. When the scraper 9 is attached / detached or rotated around the hinge 57, the scraper 9 is operated in a state in which the transfer end network 3F of the upper net 3 is removed. In the form of this conveyance end part scraper 9F, a groove 63 is formed in the scraper frame 56 constituting the conveyance part scraper 9R along the front-rear direction, and the front scraper frame 64 constituting the conveyance end part scraper 9F is formed in this groove 63 part. It is fitted. Further, it can be provided so as to be slidable back and forth so that it can be easily inserted and removed from the front cover 51 side when the transport end portion scraper 9F is attached and detached.

  The funnel 10 of the wind selector 15 is fed by the rotation of the roll 70. The second picked windsed down to the sorting wind 11 are transferred to the second port 14 by the rotation of the second spiral shaft 71 and discharged to the outside through the chute 72.

DESCRIPTION OF SYMBOLS 1 Stand 2 Swing shelf frame 3 Upper net 3F Conveyance terminal part network 3R Conveyance part network 4 Lower net 5 Bottom plate 6 Third port 7 Fourth port 8 First port 9 Scraper 9F Conveyor end part scraper 9R Conveyor part scraper 10 Funnel 11 Sorting Air path 12 Suction blower 13 Hokuguchi 14 Second port 15 Wind selector 16 Wind tube 17 Net shelf room

Claims (4)

  An upper net (3) in an inclined posture for sorting straw debris, gravel, etc. while receiving rock supply and swinging and transporting on a swing shelf frame (2) that is swingably supported with respect to the gantry (1); The lower net (4) inclined in the opposite direction to the upper net (3) for receiving fine particles such as gravel while leaking from the upper net (3) and transporting it down, and the lower net (4 A bottom plate (5) having an inclined posture for receiving and moving fine foreign matters leaking from the top and bottom is mounted in the vertical direction, and the third port for discharging straw waste flowing down from the conveying terminal end of the upper net (3) (6) and a fourth opening (7) for discharging foreign matters flowing down from the conveyance end portion of the bottom plate (5) are provided on one end side of the swing shelf frame (2), and the lower net (4) A rough sorting device characterized in that the first port (8) for discharging the rice that flows down from the other side of the swing shelf frame (2) is provided.   The coarse sorting device according to claim 1, wherein scrapers (9) that are in sliding contact with the lower surface of the upper net (3) are arranged at set intervals in the transport direction.   The upper end of the upper network (3) and the scraper (9) are defined as the transport end section network (3F) and the transport end section scraper (9F). 3R) and the transport scraper (9R) are detachable or can be pivoted up and down, and the upper surface of the transport start end of the lower net (4) can be released. Item 3. The coarse sorting apparatus according to Item 2.   In the upper part of the swinging shelf frame (2), a funnel (10) for feeding and supplying the soot, a sorting air passage (11) for wind-selecting the soot fed from the funnel (10), and this sorting air passage (11) comprises a suction blower (12) for sucking and blowing selected air, a kite selected by the sorting air passage (11), a fall port (13) for receiving the second thing, a second mouth 14 and the like. An air selection device (15) is provided, and the air outlet (13) of the selection air passage (11) is placed over the rear upper surface of the upper screen (3) of the swing shelf frame (2). The sorting air path (11) of the device (15) is passed through the wind tube (16) into the net shelf room (17) between the upper net (3) and the lower net (4). The coarse sorting device according to any one of claims 1 to 3, wherein dust is discharged from the chamber (17).

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