JP2005095756A - Gravel removal method, gravel removal tool, and gravel removal apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems of a high price, necessity of a wide installation surface area, and difficulty for installation of a conventional gravel removal tool which comprises a separation unit installed in a rotatable manner in an outer gutter having an inlet gutter and an outlet gutter, a dipping up type water retention tank formed in the separation unit by a partitioning wall, and a basin for sand and gravel in the rotation direction of the dipping up type water retention tank and which is for separating the sand and gravel from rootcrops by supplying the rootcrops contaminated with the sand and gravel via flowing water. <P>SOLUTION: The subject gravel removal method is for separating heavy matters such as gravel, earth and sand, and iron pieces from raw potato by blowing up water from a manhole formed in a down face of a flowing water gutter to the raw potato moving along with the flowing water in the flowing water gutter. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a stone removing method, a stone removing machine, and a stone removing apparatus suitable for cleaning raw material rice cake such as potato and sweet potato having a novel configuration.
That is, it is intended to accurately remove heavy objects such as stones, earth and sand, and iron pieces mixed in the raw material dredger.

The state of the conventional stone remover is as follows.
A separator body is rotatably provided in an exterior fence having an inlet and an outlet fence, and a separating water holding tank is provided with a partition wall in the separating body, and a stone sand basin is provided on the rotating direction side of the collecting tank. The thing which tries to isolate | separate by supplying the root vegetables mixed with stone sand through flowing water is provided.
See "Patent Document 1"

Patent No. 1221571

The problems to be solved are as follows.
1. The price is expensive.
2. Large installation area makes installation difficult.
3. Attached machine is necessary.

  According to the first aspect of the present invention, water is blown up from a manhole provided on the lower surface of the running water feed groove with respect to the raw material bowl moving by running water in the running water feed groove. This is characterized in that a heavy material such as stone, earth and sand, and an iron piece is dropped from a manhole by separating the heavy material and moving the raw material slag directly with running water.

Invention of Claim 2 is comprised from the case part 1 for stone removal machines, the flowing water channel part 2, the blowing water supply part 3, and the scraping chain part 4,
A. The stone removing machine case 1 is composed of an upper case 1A and a lower case 1B connected to the lower side of the upper case 1A. The upper case 1A is connected to a rectangular shape that is long in the plane front-rear direction with a wall. 1B is composed of a rear lower wall 1B1, a bottom plate 1B2, and left and right side walls 1B3, 1B4, and the bottom plate 1B2 is provided with a front inclined bottom plate 1B22 that is connected to the front upper side.
B. The flowing water channel portion 2 includes a flowing water channel main body 2A and a manhole 2B for dropping stones, etc., and the flowing water channel portion 2 is connected to the flowing water channel portion 2, and the flowing water channel main body 2A includes the flowing water channel body 2A1. The flow channel body 2A1 has a U-shaped cross-section, and the flow channel main body is attached in a state of penetrating the left and right walls 1A3 and 1A4 of the lower case 1B in the left and right directions, so that a stone or the like falls. The manhole 2B is configured as a flat rectangular opening in the bottom plate 2A11 of the flow channel main body 2A.
C. The blowing water supply unit 3 includes a sluice partition plate portion 3A and a blast water pipe 3B. The sluice partition plate portion 3A has a rear position in the stone removing machine case portion 1 and includes left and right walls 1A3, 1A4 and left and right walls. It is composed of a vertical plate 3A1 stretched between the side walls 1B3 and 1B4, and the blow-up water pipe 3B is composed of a pipe of a predetermined size and has a rear position in the stone removing machine case portion 1 from the sluice partition plate portion 3A. Inserted from above,
D. The scraping chain section 4 is used to scrape stones and the like scattered in the stone removing machine case upward by a chain conveyor 4D having a scraper 4D1 disposed in the stone removing machine case section 1 and discharge the stones from the dropping mouth. It is characterized by being comprised.

Invention of Claim 3 is comprised from the case part 1 for stone removal machines, the flowing water channel part 2, the blowing water supply part 3, and the scraping chain part 4,
A. The stone removing machine case 1 is composed of an upper case 1A and a lower case 1B connected to the lower side of the upper case 1A. The upper case 1A is connected to a rectangular shape that is long in the plane front-rear direction with a wall. 1B is composed of a rear lower wall 1B1, a bottom plate 1B2, and left and right side walls 1B3, 1B4, and the bottom plate 1B2 is provided with a front inclined bottom plate 1B22 that is connected to the front upper side.
B. The flowing water channel portion 2 includes a flowing water channel main body 2A, a manhole 2B for falling stones, a manhole opening / closing slide plate 2C, and a stone or the like anti-scattering tool 2D. The flowing water channel main body 2A includes a flowing water channel body 2A1 and a flow channel 2A1. The flow path body 2A1 is composed of a road restricting tool 2A2, and the flow path body 2A1 is formed in an upward U-shaped cross section. The flow path body is attached in a state of penetrating the left and right walls 1A3, 1A4 of the lower case 1B in the left-right direction. The flow path restricting tool 2A2 is configured to taper the left end portion of the horizontal prism 2A21 attached to the lower end of the inner peripheral surface of the flow channel body 2A1 in the left-right direction, and the upper surface of the horizontal prism 2A21 is configured to have a triangular cross section. The manhole 2B for dropping stones, etc. is configured as a rectangular opening that is long in the front-rear direction on the bottom plate 2A11 of the flow channel body 2A, and the manhole opening / closing slide plate 2C is located on the bottom plate 2A11 of the flow channel body 2A. Is constructed by arranging a plate slidably, stone preventing scattering device 2D is composed of a vertical plate 2D1 of the left and right that are suspended across the stones and the like falling manhole 2B on the lower surface flowing water channel section 2,
C. The blowing water supply unit 3 includes a sluice partition plate portion 3A and a blast water pipe 3B. The sluice partition plate portion 3A has a rear position in the stone removing machine case portion 1 and includes left and right walls 1A3, 1A4 and left and right walls. It is composed of a vertical plate 3A1 stretched between the side walls 1B3 and 1B4 so as to be movable up and down, and the blow-up water pipe 3B is composed of a pipe having a predetermined size, and is formed in the stone removing machine case portion 1 from the sluice partition plate portion 3A. Inserted from above with a rear position,
D. The scraping chain section 4 is used to scrape stones and the like scattered in the stone removing machine case upward by a chain conveyor 4D having a scraper 4D1 disposed in the stone removing machine case section 1 and discharge the stones from the dropping mouth. It is characterized by being comprised.

Invention of Claim 4 is comprised from the case part 1 for stone removal machines, the flowing water channel part 2, the blowing water supply part 3, and the scraping chain part 4,
A. The stone removing machine case 1 includes an upper case 1A and a lower case 1B connected to the lower side of the upper case 1A. The upper case 1A includes front and rear walls 1A1, 1A2 and left and right walls 1A3, 1A4. The lower case 1B is composed of a rear lower wall 1B1, a bottom plate 1B2, and left and right side walls 1B3, 1B4. The rear lower wall 1B1 is connected to the lower side of the rear wall 1A2. The bottom plate 1B2 is composed of a rear horizontal bottom plate 1B21 connected to the lower end of the rear lower wall, and a front inclined bottom plate 1B22 connected to the front end of the rear horizontal bottom plate obliquely upward. The upper end of the front inclined bottom plate is connected to the lower sides of the left and right walls 1A3, 1A4 of the upper case 1A in a state where a drop 1B5 is formed in front of the upper case, and the left and right side walls 1B3, 1B4 And a virtual vertical line S passing through the contact point between the rear horizontal bottom plate 1B21 and the front inclined bottom plate 1B22 of the bottom plate 1B2. A front lower case S1 and a rear lower case S2 are formed around
B. The flowing water channel portion 2 includes a flowing water channel main body 2A, a manhole 2B for falling stones, a manhole opening / closing slide plate 2C, and a stone scattering prevention tool 2D. In the flowing water channel portion 2, a flowing water channel 5 is provided. The flow channel main body 2A is composed of a flow channel body 2A1 and a flow path restricting tool 2A2, and the flow channel body 2A1 is configured in a U-shaped cross section with a bottom plate 2A11 in the left and right direction and front and rear side walls 2A12. At the same time, the flow channel main body is attached in a state of penetrating the left and right walls 1A3, 1A4 in the left-right direction with a rear position in the front lower case S1 of the lower case 1B, and the flow path restricting tool 2A2 is disposed inside the flow channel body 2A1. The left end of the horizontal prism 2A21 attached to the lower end of the peripheral surface in the left-right direction is tapered, and the upper surface of the horizontal prism 2A21 is configured in a triangular shape. The bottom plate 2A11 of the water channel main body 2A is configured as a rectangular opening that is long in the front and rear direction, and the manhole opening / closing slide plate 2C is configured by slidably disposing the plate on the bottom plate 2A11 of the water flow channel main body 2A to prevent scattering of stones and the like. The tool 2D is composed of left and right vertical plates 2D1 suspended from the lower surface of the flowing water channel portion 2 with a manhole 2B for dropping stones, etc.
C. The blowing water supply unit 3 includes a sluice partition plate portion 3A and a blast water pipe 3B, and the sluice partition plate portion 3A has a front position of the rear lower case S2 in the lower case 1B of the stone removing machine case portion 1. It is composed of the left and right walls 1A3, 1A4 and the vertical plate 3A1 stretched between the left and right side walls 1B3, 1B4 so that it can be raised and lowered. The blow-up water pipe 3B is composed of a pipe of a predetermined size, and is a case part for a stone removing machine. 1 is inserted and arranged from above with a rear position from the sluice partition plate portion 3A,
D. The scraping chain portion 4 includes left and right drive sprockets 4A disposed at a front end portion in the upper case 1A, left and right driven sprockets 4B disposed rearward in the upper case 1A, and a front lower case S1. It is characterized by comprising a chain conveyor 4D having left and right driven sprockets 4C disposed below and a scraper 4D1 wound around these sprockets.

  The invention according to claim 5 is the invention according to any one of claims 2 to 4, in the middle of a running water feed groove 5 configured to flow from left to right by the left water supply pipe 5A. The left and right ends of the flowing water channel portion 2 are mounted in communication with each other, and the left part of the flowing water feeding groove 5 in the flowing water feeding groove 5 has a raw material storage 5B, a fixed amount feeding from the left side. 5C, a conveying screw conveyor 6 is connected to the right end of the running water feed groove 5, a first scissor washing machine 7 is connected to the tip of the conveying screw conveyor 6, and the first scissor washing machine 7 has a first A two-tub cleaning machine 8 is connected.

Advantages of the present invention The machine structure is integrated and easy to handle.
2. The price is low, and the price of the entire equipment can be reduced.
3. It is possible to carry out with the processing amount of raw material soot of 2 to 20 ton / hr.
4). The foundation work and installation are simple and the handling technology is also simple.

The first invention is a stone removal method.
A is a stone removing machine of the second invention that specifically realizes the first invention.
1 is a stone removing device of the third invention using the stone removing machine I of the second invention.

  In the stone removal method of the first invention, water is blown up from a manhole provided on the lower surface of the running water feed groove with respect to the raw material dred that moves in the running water feed groove by flowing water, and thereby the raw material dredge and stones, earth and sand, iron pieces It is configured to separate heavy things, move raw material slag directly with running water, and drop heavy things such as stones, earth and sand, and iron pieces from manholes.

The stone removing machine i of the second invention will be described.
The stone remover A is composed of a stone remover case portion 1, a flowing water channel portion 2, a blow-up water supply portion 3, and a scraping chain portion 4.
A. The stone removing machine case 1 includes an upper case 1A and a lower case 1B connected to the lower side of the upper case 1A.
a. In the upper case 1A, the front and rear walls 1A1, 1A2 and the left and right walls 1A3, 1A4 are connected in a square shape that is long in the front-rear direction of the plane.
b. The lower case 1B includes a rear lower wall 1B1, a bottom plate 1B2, and left and right side walls 1B3 and 1B4.
b1. The rear lower wall 1B1 is composed of a vertically long plate connected to the lower side of the rear wall 1A2, and b2. The bottom plate 1B2 is composed of a rear horizontal bottom plate 1B21 connected to the lower end of the rear lower wall, and a front inclined bottom plate 1B22 connected to the front end of the rear horizontal bottom plate diagonally forward and upward. The upper end of the front inclined bottom plate is It is connected to the lower sides of the left and right walls 1A3, 1A4 in the upper case 1A in a state in which a drop 1B5 is formed in front of the upper case.
b3. The left and right side walls 1B3, 1B4 are formed of a substantially triangular side plate, and are stretched between the rear lower wall 1B1 and the bottom plate 1B2.
b4. In the lower case 1B, a front lower case S1 and a rear lower case S2 are formed around a virtual vertical line S passing through a contact point between the rear horizontal bottom plate 1B21 and the front inclined bottom plate 1B22 in the bottom plate 1B2.
In the figure, 1C is drained.

B. The flowing water channel portion 2 includes a flowing water channel main body 2A, a manhole 2B for falling stones, a manhole opening / closing slide plate 2C, and a stone scattering prevention tool 2D.
The flowing water channel portion 2 is connected to a flowing water feeding groove 5 described later.
b1. The flow channel main body 2A is composed of a flow channel body 2A1 and a flow path restrictor 2A2, and the flow channel body 2A1 is configured in a U-shaped cross-section by a left and right bottom plate 2A11 and front and rear side walls 2A12. The flow channel main body is attached so as to penetrate the left and right walls 1A3, 1A4 in the left-right direction with a rear position in the front lower case S1 of the lower case 1B.
The flow path restricting tool 2A2 is configured such that the left end portion of the horizontal prism 2A21 attached to the lower end of the inner peripheral surface of the flow channel body 2A1 in the left-right direction is tapered, and the upper surface of the horizontal prism 2A21 is configured in a triangular shape. Yes.
b2. The manhole 2B for falling stones or the like is configured as a rectangular opening that is long in the front and rear planes in the bottom plate 2A11 of the flow channel main body 2A.
b3. The manhole opening / closing slide plate 2C is configured by slidably disposing a plate on the bottom plate 2A11 of the flowing water channel main body 2A.
2C1 is a knob projecting on the upper surface of the manhole opening / closing slide plate, 2C2 is a moving groove carved in the left-right direction in the center of the manhole opening / closing slide plate, and 2C3 is a projection projecting on the bottom plate 2A11 of the water flow channel main body 2A. Thus, it is loosely fitted in the moving groove. The manhole opening / closing slide plate 2C is moved while supporting the knob 2C1.
b4. The stone scattering preventive tool 2D is composed of left and right vertical plates 2D1 suspended from the lower surface of the flowing water channel portion 2 with a stone falling manhole 2B interposed therebetween.

C. The blowing water supply unit 3 includes a sluice partition plate 3A and a blowing water pipe 3B.
c1. The sluice partition plate portion 3A is stretched between the left and right walls 1A3, 1A4 and the left and right side walls 1B3, 1B4 at the front position of the rear lower case S2 in the lower case 1B of the stone removing machine case portion 1. It is composed of a vertical plate 3A1.
3A2 is a vertical guide attached inside the left and right walls 1A3, 1A4 and the left and right side walls 1B3, 1B4, and the vertical plate 3A1 is moved up and down by the vertical guide.
c2. The blow-up water pipe 3B is configured by a pipe having a predetermined size, and is inserted into the stone removing machine case 1 from above with a rear position from the sluice partition plate 3A.

D. The scraping chain portion 4 includes left and right drive sprockets 4A disposed at a front end portion in the upper case 1A, left and right driven sprockets 4B disposed rearward in the upper case 1A, and a front lower case S1. It consists of a chain conveyor 4D having left and right driven sprockets 4C disposed below and a scraper 4D1 wound around these sprockets.
The scraper 4D1 is configured to lift up stones and the like scattered on the front inclined bottom plate 1B22 of the lower case 1B.

The stone removing device 1 of the third invention will be described.
This uses the stone removing machine i of the second invention.
Refer to FIG.
The left and right ends of the flow channel portion 2 of the stone remover A are attached in the middle of a flow channel 5 configured to flow from left to right by the left water supply pipe 5A.
A raw material storage 5B containing a raw material slag from the left side and a fixed amount feeding device 5C are disposed on the left side of the stone removing machine i in the running water feed groove 5.
A transport screw conveyor 6 is connected to the right end of the running water feed groove 5, a first soot cleaner 7 is connected to the tip of the transport screw conveyor 6, and a second soot cleaner 8 is connected to the first soot cleaner 7. Has been. In the figure, 6A is a flowing water discharge hole.

The operation will be described.
1. Operate the stone remover.
2. Add water.
That is, the blow-up water is sent from the blow-up water pipe 3B toward the lower end of the sluice partition plate portion 3A.
The blow-up water is pumped at a pressure level of 1 to 2K.
3. Water blows out.
That is, the water blows up from the manhole 2B for falling stones.
4). Blow-up water blows up from the manhole 2B for falling stones.
The raw material basket P floats and flows together with the flowing water.
A heavy object I such as stones, earth and sand, and iron pieces falls below the manhole 2B for dropping stones.
5). The raw material soot P is poured from the running water feed groove 5.
The raw material lees floats upward in the flowing water.
Those with a high specific gravity flow downward in the flowing water.
6). The raw material P rises by adjusting the blow-up water.
7). Heavy materials such as stones, earth and sand, and iron pieces mixed in the raw material casket fall below the manhole 2B for dropping stones.
8). The scraping chain portion 4 scrapes up heavy objects such as stones, earth and sand, and iron pieces and discharges them from the outlet 1B5.
9. Foreign matter accumulated at the bottom of the stone remover case 1 is swept from the drain 1C once a week.
10. By adjusting the water level with the sluice partition plate portion 3A, the higher water level W is spontaneously injected from the manhole 2B for falling stones and the like.
That is, since the water level W1 in the flowing water channel part 2 is lower than the water level W in the case part 1 for stone remover, it spontaneously jets itself.
In addition, the determination of the pressure at the time of pump pumping is based on the fact that flowing water about three times as much as that of the raw material trough flows and the water level W1 in the flowing water channel portion rises about 5 cm from the water level W2 of the flowing water.

It is the front view seen centering on 2nd invention. It is the perspective view which looked at the 2nd invention from the left. It is the perspective view which notched one part same as the above. It is an AA line expanded sectional view. It is an AA line expanded sectional view. It is the perspective view which notched one part of FIG. It is the perspective view which notched one part of FIG. It is a BB line expanded sectional view. FIG. It is a DD line expanded sectional view. It is a longitudinal cross-sectional view explaining an effect | action. It is a longitudinal cross-sectional view explaining an effect | action. It is a perspective view of the chain conveyor which has a scraper. It is a front view of the 3rd invention.

Explanation of symbols

1 Stone removal machine of the second invention 1 Case part for stone removal machine 2 Flow channel part 3 Blowing water supply part 4 Scraping chain part 1 Stone removal device of the 3rd invention

Claims (5)

Water is blown up from the manhole provided on the lower surface of the flow channel for raw material dredging that moves in the flowing water channel by flowing water, thereby separating the material rod from heavy material such as stone, earth and sand, iron pieces, etc. A method for removing stone, characterized in that it is configured to move the culm by running water as it is, and drop heavy objects such as stones, earth and sand, and iron pieces from the manhole. It is composed of a stone remover case (1), a flow channel section (2), a blow-up water supply section (3), and a scraping chain section (4).
The stone remover case (1) is composed of an upper case (1A) and a lower case (1B) connected to the lower side of the upper case (1A). The lower case (1B) is composed of a rear lower wall (1B1), a bottom plate (1B2), left and right side walls (1B3, 1B4), and the bottom plate (1B2). In addition, a front inclined bottom plate (1B22) connected to the front upper side is provided,
The flow channel part (2) is composed of a flow channel main body (2A) and a manhole (2B) for dropping stones, etc., and the flow channel main body (2A) is composed of a flow channel body (2A1), 2A1) has a U-shaped cross section, and the flow channel body is attached in a state of penetrating the left and right walls (1A3, 1A4) of the lower case (1B) in the left-right direction. The manhole (2B) is configured as a flat rectangular opening in the bottom plate (2A11) of the flow channel main body (2A), and the blowing water supply unit (3) includes the sluice partition plate (3A) and the blowing water pipe (3B). The sluice partition plate part (3A) is stretched between the left and right walls (1A3, 1A4) and the left and right side walls (1B3, 1B4) with the rear position in the stone removing machine case part (1). The vertical plate (3A1) The pipe for raising water (3B) is composed of a pipe of a predetermined size, and is inserted and arranged from above at a position behind the sluice partition plate part (3A) in the case part (1) for stone removing machine,
The scraping chain part (4) is used to lift the stones scattered in the stone removing machine case part by a chain conveyor (4D) having a scraper (4D1) disposed in the stone removing machine case part (1). A stone remover that is constructed so as to be discharged from the outlet. It is composed of a stone remover case (1), a flow channel section (2), a blow-up water supply section (3), and a scraping chain section (4).
The stone remover case (1) is composed of an upper case (1A) and a lower case (1B) connected to the lower side of the upper case (1A). The lower case (1B) is composed of a rear lower wall (1B1), a bottom plate (1B2), left and right side walls (1B3, 1B4), and the bottom plate (1B2). In addition, a front inclined bottom plate (1B22) connected to the front upper side is provided,
The flow channel part (2) is composed of a flow channel main body (2A), a manhole for falling stones (2B), a manhole opening / closing slide plate (2C), and a stone scattering prevention tool (2D). (2A) is composed of a flow channel body (2A1) and a flow path restricting tool (2A2), and the flow channel body (2A1) is configured in a U shape in an upward cross section, and the flow channel body is Attached so as to penetrate the left and right walls (1A3, 1A4) of the case (1B) in the left-right direction, and the flow restrictor (2A2) is attached to the lower end of the inner peripheral surface of the flow channel body (2A1) with the left-right direction. The left end of the horizontal prism (2A21) is tapered, and the upper surface of the horizontal prism (2A21) is triangular, and the manhole (2B) for dropping stones is the bottom plate of the flow channel main body (2A). (2A11) as a rectangular opening long before and after the plane The manhole opening / closing slide plate (2C) is configured by slidably disposing a plate on the bottom plate (2A11) of the flow channel main body (2A). It consists of left and right vertical plates (2D1) suspended from the lower surface of (2) with a manhole for falling stones (2B) in between,
The blowing water supply part (3) is composed of a sluice partition plate part (3A) and a blast water pipe (3B), and the sluice partition plate part (3A) has a rear position in the case part (1) for stone removing machine. The vertical wall (3A1) stretched between the left and right walls (1A3, 1A4) and the left and right side walls (1B3, 1B4). The blow-up water pipe (3B) is a pipe of a predetermined size. Configured, inserted into the case portion (1) for stone remover from above with a rear position from the sluice partition plate portion (3A),
The scraping chain part (4) is used to lift the stones scattered in the stone removing machine case part by a chain conveyor (4D) having a scraper (4D1) disposed in the stone removing machine case part (1). A stone remover that is constructed so as to be discharged from the outlet. It is composed of a stone remover case (1), a flow channel section (2), a blow-up water supply section (3), and a scraping chain section (4).
The stone remover case (1) is composed of an upper case (1A) and a lower case (1B) connected to the lower side of the upper case (1A). The upper case (1A) 1A1, 1A2) and the left and right walls (1A3, 1A4) are connected in a rectangular shape that is long in the front-rear direction, and the lower case (1B) has a rear lower wall (1B1), a bottom plate (1B2), and left and right side walls (1B3). 1B4), the rear lower wall (1B1) is a vertically long plate connected to the lower side of the rear wall (1A2), and the bottom plate (1B2) is connected to the lower end of the rear lower wall. The rear horizontal bottom plate (1B21) and the front inclined bottom plate (1B22) connected to the front end of the rear horizontal bottom plate obliquely forward and upward, the upper ends of the front inclined bottom plate are the left and right walls of the upper case (1A). (1A3, 1A4) The left and right side walls (1B3, 1B4) are composed of a substantially triangular plate on the side, and are stretched between the rear lower wall (1B1) and the bottom plate (1B2). The lower case (1B) includes a front lower case (S1) and a rear side centered on a virtual vertical line (S) passing through a contact point between the rear horizontal bottom plate (1B21) and the front inclined bottom plate (1B22) in the bottom plate (1B2). A lower case (S2) is formed,
The flowing water channel portion (2) is composed of a flowing water channel main body (2A), a manhole (2B) for dropping stones, a manhole opening / closing slide plate (2C), and a stone scattering prevention tool (2D). The flow channel (5) is connected to the part (2), the flow channel main body (2A) is composed of the flow channel body (2A1) and the flow path restricting tool (2A2), and the flow channel body (2A1) is The bottom plate (2A11) in the left-right direction and the front and rear side walls (2A12) are configured in an upward U-shaped cross section, and the flow channel body has a rear position in the front lower case (S1) of the lower case (1B). The right and left walls (1A3, 1A4) are attached so as to penetrate in the left-right direction, and the flow path restricting tool (2A2) is attached to the lower end of the inner peripheral surface of the flow channel body (2A1) in the left-right direction ( 2A21) If the left end is tapered, The upper surface of the horizontal prism (2A21) has a triangular cross-section, and the manhole (2B) for dropping stones, etc. is configured as a flat rectangular opening in the bottom plate (2A11) of the flow channel main body (2A). (2C) is configured by slidably disposing a plate on the bottom plate (2A11) of the flow channel main body (2A), and the anti-scattering tool (2D) such as a stone is placed on the bottom surface of the flow channel portion (2). Consists of left and right vertical plates (2D1) suspended across an equal drop manhole (2B),
The blowing water supply part (3) is composed of a sluice partition plate part (3A) and a blast water pipe (3B), and the sluice partition plate part (3A) is a lower case (1) of the case part (1) for the stone remover. 1B) having a front position of the rear lower case (S2), and configured by a vertical plate (3A1) stretched up and down between the left and right walls (1A3, 1A4) and the left and right side walls (1B3, 1B4), and blown up. The water pipe (3B) is composed of a pipe of a predetermined size, and is inserted and disposed from above at a position behind the sluice partition plate part (3A) in the stone removing machine case part (1),
The scraping chain portion (4) includes left and right drive sprockets (4A) disposed at the front end portion in the upper case (1A) and left and right driven sprockets disposed rearward in the upper case (1A). 4B), left and right driven sprockets (4C) disposed below in the front lower case (S1), and a chain conveyor (4D) having a scraper (4D1) wound around these sprockets. A stone remover characterized by that. The flow channel in the stone removing machine according to any one of claims 2 to 4, in the middle of a flow channel (5) configured to flow from left to right by a left water supply pipe (5A). The left and right ends of the part (2) are in communication with each other, and the raw material storage (5B) and metering feeder (5C) are arranged from the left to the left of the stone removal machine in the running water feed groove (5). The conveying screw conveyor (6) is connected to the right end of the running water feeding groove (5), the first scissor washing machine (7) is connected to the tip of the conveying screw conveyor (6), and the first scissor washing machine ( 7) A stone removing device, characterized in that a second scrubber washing machine (8) is connected to 7).