JPH11618A - Pebble removing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for removing pebble from grain in which dust accumulation is prevented. SOLUTION: This pebble removing apparatus comprises a main sorting porous plate 7 which has a rectangular shape with high front side, low rear side, and horizontal right and left sides, a transversely-transporting porous plate which transversely transports grain containing pebble to the right side, a turning back porous plate which turns backward the grains flowing in from the transversely-transporting porous plate, an auxiliary grain sorting porous plate which sorts the turned back grain again, a main blower case 1 having a windmill, and an auxiliary blower case having an auxiliary windmill. Both front and rear ends of the main sorting porous plate are bent downward to form front and rear installation parts 30, 31, both front and rear ends of the transversely-transporting porous plate are bent downward to form front and rear installation parts 32, 33, the front installation part 32 and the rear installation part 31 are overlapped and welded with each other to make the length short, and a wind hole 36 is formed in a cover 37 which surrounds the upper part of the main blower case.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a destoner.

[0002]

2. Description of the Related Art In the specification and drawings of Japanese Patent Application No. 7-34897, a main sorting perforated plate having a high front side, a low rear side, a horizontal square on the left and right sides, and a main grain outlet on the rear side is disclosed. ,
A traversing perforated plate for laterally feeding grains containing debris provided on the front side of the main sorting perforated plate, and a grain or the like from the traversing perforated plate attached to a side portion of the main sorting perforated plate. A grain perforated plate having a stone take-out port on the front side and a sub-grain outlet on the rear side before re-sorting the returned grains and the like attached to the side of the returned perforated plate; A main blower case having a windmill provided below the sorting perforated plate and the horizontal perforated plate, and a sub-blower case having a windmill provided below the return perforated plate and the sub-sorting perforated plate have been proposed. I have. In the prior application, as shown in FIG.
The front and rear ends are bent downward to form front and rear mounting portions b and c, and the front and rear ends of the transverse perforated plate d are bent downward to form front and rear mounting portions e and f. The front mounting portion b and the rear mounting portion e of the transverse perforated plate d are overlapped and welded. Since the front and rear mounting portions b and e also serve as reinforcement,
It is a relatively long structure.

[0003]

The above-mentioned known stone removing device has a structure in which a front mounting portion b of a main sorting perforated plate a and a rear mounting portion e of a transverse perforated plate d are superposed and welded. Since the front and rear mounting portions b and e also have the function of reinforcing the perforated plate, they are configured to be relatively long. Therefore, there was a problem that dust g of hemp bag dust accumulates there.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a main sorting perforated plate 7 having a front side high, a rear side low, and a left and right side having a horizontal rectangular shape and a main grain outlet 26 provided on the rear side; A perforated perforated plate 17 provided on the front side of the plate 7 for traversing grains containing debris to the right, and grains and the like flowing from the perforated perforated plate 17 attached to the right side of the main sorting perforated plate 7 are rearward. A return perforated plate 18 and a grain sub-sorting perforated plate 21 provided with a stone take-out port 24 on the front side and a sub-grain outlet 25 on the rear side before re-sorting the returned grains and the like provided on the right side of the return perforated plate 18; A main blower case 1 having a windmill 2 provided below the main selection perforated plate 7 and the horizontal perforated plate 17;
And a sub-blower case 11 having a windmill 12 provided below the sub-selection perforated plate 21. Both front and rear ends of the main selection perforated plate 7 are bent downward to form front and rear mounting portions 30, 31.
The front and rear ends of the horizontal perforated plate 17 are bent downward to form front and rear mounting portions 32 and 33, and the front mounting portion 30 of the main sorting perforated plate 7 and the rear mounting of the horizontal perforated plate 17 are formed. Part 3
3 is superimposed and welded, and the front mounting portion 30
The rear attachment portion 33 is formed to have a short length capable of being welded, and a cover 37 surrounding the upper portion of the main blower case 1 is formed as a stone removing device in which an air hole 36 is formed.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a wide main blower case, and 2 denotes a main windmill mounted inside the main blower case 1. The main blower case 1 is formed of a main arc body 4 centered on the left-right axis 3 of the main wind turbine 2 and a main blow-up chamber 5 extending only in the front-rear direction connected to an upper part of the main arc body 4. A main outlet 6 is formed at the upper edge of the main blow-up chamber 5 and opens substantially over the entire surface. The main outlet 6 is inclined slightly higher on the front side and slightly lower on the rear side.

On the upper surface of the main outlet 6, a main selection perforated plate 7 is provided along the main outlet 6. As shown in FIG. 4, an inclined projection 9 whose front side is higher is formed on the eye 8 of the main selection perforated plate 7 as shown in FIG. Reference numeral 10 denotes side walls provided on the left and right sides of the main sorting perforated plate 7.

[0007] At the side of the main blower case 1 is provided a narrow auxiliary blower case 11 as shown in FIG. 5, and the left-right axis 3 is extended into the auxiliary blower case 11 to extend the shaft. The auxiliary windmill 12 is fixed inside the auxiliary blower case 11. 13 is a main suction port and 14 is a sub suction port. The main wind turbine 2 is formed by a normal plate fan or a sirocco fan. The sub wind turbine 12 is a wind turbine in which several blades 16 are attached to one side of a disk 15.

The main sorting perforated plate 7 has a substantially rectangular shape as shown in FIG. 3, and a horizontal feeding perforated plate 17 for feeding grains and the like is provided on the right side in front of the main sorting perforated plate 7. Since the transverse perforated plate 17 is only for laterally transporting grains and the like to the right side,
The front and rear width is narrow, and the wind blows to the right. A return perforated plate 18 is provided at an end point of the horizontal perforated plate 17. The return perforated plate 18 is for returning to the rear side by about 1/2 to 1/3, has a narrow width, and is juxtaposed with the side wall 10 on the side of the main selection perforated plate 7. Board 1
The rear side of 8 is a blind plate 19. Reference numeral 20 denotes a first part reaching the return perforated plate 18 formed at the end point of the transverse perforated plate 17.
It is a contact.

The return perforated plate 18 and the blind plate 19 are formed to have the same horizontal width, and a sub-sorting perforated plate 21 is formed on a side portion thereof. The sub-sorting perforated plate 21 has the same length as the main sorting perforated plate 7 plus the transverse perforated plate 17, and the sub-sorting perforated plate 21 and the return perforated plate 18 are located at the rear of the return perforated plate 18. They are connected at the second communication port 22. 23 is a partition plate,
Reference numeral 24 denotes a stone extraction outlet on the front side of the sub-selection perforated plate 21; 25, a sub-grain outlet on the rear side of the sub-selection perforated plate 21; 26, a main grain outlet on the rear side of the main selection perforated plate 7; Wheel, 2
8 is a rod, 29 is a motor.

As shown in the sectional view taken along the line A--A in FIG. 3 (see FIG. 2), the front and rear ends of the main selection perforated plate 7 are bent downward at right angles to form front and rear mounting portions 30, 31, respectively. ,
The front and rear ends of the transverse perforated plate 17 are also bent downward at right angles to form front and rear mounting portions 32 and 33, respectively. The rear mounting portion 31 abuts and welds on the rear side wall 34, and is connected to the front mounting portion 30 and the rear mounting portion. The parts 33 are joined and welded to each other, and the front mounting part 32 is
5 and welded. At this time, since each of the mounting portions also serves as a reinforcing frame, the conventionally known mounting portions are formed to be considerably long as shown in FIG. 1. However, since dust accumulates, the present application can weld the front and rear mounting portions 30 and 33. The short length of the limit, and
The cover 37 surrounding the upper part of the main blower case 1 is provided with an air hole 36 for discharging the removed dust.

[0011]

Next, the operation will be described. When the motor 29 is energized to rotate the left-right axis 3, the main wind turbine 2 and the auxiliary wind turbine 12 rotate together, and the main wind turbine 2 sends air to the main selection perforated plate 7 and the transverse perforated plate 17, and returns by the auxiliary wind turbine 12. The air is sent to the perforated plate 18 and the sub-sorting perforated plate 21. Further, all the perforated plates are swung W via the eccentric wheel 27 and the rod 28. When blown to the main sorting perforated plate 7, as shown in FIG. 4, the grain a floats entirely due to the wind, the stone b does not float because it is heavy, and the grain a floats under it. Since it does not come into contact with the inclined projections 9 of the sorting perforated plate 7, the stones b are distributed without moving both forward and backward while floating, and the stone b moves forward by the inclined projections 9.

However, when the grain a is newly supplied from above, the grain is metabolically moved by the supplied amount, and the grain a is discharged from the main grain outlet 26, and the grain a including the swarf b is fed through the transverse porosity. It reaches on the plate 17. In the horizontal perforated plate 17, since the wind is blowing to the right, it is laterally fed by the wind and reaches the return perforated plate 18 from the first communication port 20, and is returned in the returned perforated plate 18 because the wind is blowing backward, It is supplied to the sub-selection perforated plate 21 from the second connection port 22 and is re-selected.

During this time, the dust blown up by the main wind turbine 2 and the sub wind turbine 12 circulates inside the machine and returns to the main suction port 13 again.
It is sucked and blown up from the sub suction port 14, but in the conventional case, it has accumulated in the attachment portion eb of FIG. 1 and adversely affected the stone removal work. However, in the present application, the front and rear attachment portions 30, 33 are weldable. Since the length is short and the air hole 36 is formed in the cover 37 at the lower part of the front wall 35, dust does not accumulate.

[0014]

The above-mentioned known stone removing device has a structure in which the front mounting portion b of the main sorting perforated plate a and the rear mounting portion e of the horizontal perforated plate d are superposed and welded. Since the attachment portions b and e also serve to reinforce the perforated plate, they are relatively long. Therefore, there is a problem that dust g accumulates there. However, the present invention relates to a main sorting perforated plate 7 having a front side high, a rear side being low, and a left and right side being a horizontal square and having a main grain outlet 26 on the rear side, and stones provided on the front side of the main sorting perforated plate 7. And a return perforated plate 18 for returning the grains and the like flowing from the horizontal perforated plate 17 attached to the right side of the main sorting perforated plate 7 backward. A grain sub-sorting perforated plate 21 provided with a stone take-out outlet 24 on the front side and a sub-grain outlet 25 on the rear side for re-sorting the returned grains and the like attached to the right side of the perforated plate 18; A main blower case 1 having a windmill 2 provided below a horizontal perforated plate 17, and a sub-blower case 1 having a windmill 12 provided below the return perforated plate 18 and the sub-sorting perforated plate 21.
The front and rear ends of the main selection perforated plate 7 are bent downward to form front and rear mounting portions 30 and 31, and the front and rear ends of the transverse perforated plate 17 are bent downward and front and rear mounting portions 3.
2 and 33 are formed, and the front attachment portion 30 of the main selection perforated plate 7 is formed.
And the rear mounting portion 33 is overlapped and welded by superposing the front mounting portion 30 and the rear mounting portion 33.
Is formed as a stone removing device having a short length capable of welding, and a cover 37 surrounding the upper portion of the main blower case 1 is formed as a stone removing device in which an air hole 36 is formed. Since the mounting portion 33 has a short length, dust does not accumulate, and the cover 37
Since the air holes 36 are formed, dust is released and stored at the bottom.

[Brief description of the drawings]

FIG. 1 is a plan view of a prior application.

FIG. 2 is a longitudinal sectional view of the present invention.

FIG. 3 is a plan view of the same.

FIG. 4 is an explanatory diagram of the operation of the sorted perforated plate.

FIG. 5 is a vertical sectional side view of the same.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main blower case, 2 ... Main windmill, 3 ... Horizontal axis, 4
... Main arc body, 5 ... Main blow-up chamber, 6 ... Main blow-out port, 7 ... Main selection perforated plate, 8 ... Eyes, 9 ... Inclination protrusion, 10 ... Side wall, 11 ...
Sub-blower case, 12: sub-windmill, 13: main suction port, 14
... Sub suction port, 15 ... Disc, 16 ... Wing, 17 ... Transfer perforated plate, 18 ... Return perforated plate, 19 ... Blind plate, 20 ... First contact port, 21 ... Sub-sorting perforated plate, 22 ... Second contact Mouth, 23: Partition plate, 24: Stone removal outlet, 25: Sub-grain outlet, 26: Main grain outlet, 27: Eccentric wheel, 28: Rod, 29: Motor, 30, 31, 32, 33: Mounting part, 34 … Rear wall,
35 ... front side wall, 36 ... air hole, 37 ... cover.

Claims (1)

[Claims] 1. A main sorting perforated plate 7 having a high front side, a low rear side, and a horizontal square on the left and right sides and a main grain outlet 26 provided on the rear side.
A perforated perforated plate 17 provided on the front side of the main sorting perforated plate 7 for feeding grain containing debris to the right side;
A return perforated plate 18 for returning the grains and the like flowing from the horizontal perforated plate 17 attached to the right side of the back to the rear, and a stone take-out port on the front side for reselecting the returned grains and the like attached to the right side of the return perforated plate 18 24 is a grain sub-sorting perforated plate 21 provided with a sub-grain outlet 25 on the rear side, and the main sorting perforated plate 7 and the horizontal perforated plate 1
7, a main blower case 1 having a windmill 2 provided below;
It comprises a sub-blower case 11 having a wind turbine 12 provided below the return perforated plate 18 and the sub-sorted perforated plate 21. Both front and rear ends of the main sorted perforated plate 7 are bent downward to form front and rear mounting portions 30, 31. The front and rear ends of the horizontal perforated plate 17 are bent downward to form front and rear mounting portions 32 and 33, and the front mounting portion 30 of the main sorting perforated plate 7 and the rear mounting of the horizontal perforated plate 17 are formed. The front mounting portion 30 and the rear mounting portion 33 are formed to have a short length that allows welding, and a cover 37 surrounding the upper portion of the main blower case 1 is provided. Stone removal device with air holes 36 formed.