JP6467219B2 - Metering device - Google Patents

Description

  The present invention relates to a technique for continuously and quantitatively supplying an object to be supplied containing viscous earth and sand such as viscous earth, fibrous earth and sand, peat, and grassroot mixed earth and sand.

  Conventionally, various supply devices for cohesive soil have been proposed. For example, there is a device as described in Patent Document 1.

  As shown in FIGS. 10 (A) and 10 (B), the processing object 31 such as earth and sand is continuously and quantitatively supplied by the supply controller 211, and the downstream processing machine 31 (rotor-driven impactor 49) is supplied. The processing object is crushed into a predetermined size by a device that collides the processing object with the processing object) and is mixed with quick lime in a predetermined ratio to purify the processing object and improve the soil quality. It is comprised so that this process may be performed.

  Here, the supply controller 211 which is a fixed amount supply device rotates a pair of rotating bodies (rollers 214A and 214B) in a drum (cylindrical) shape facing each other in a direction facing each other, and this pair of rotating bodies ( The processing object such as earth and sand supplied to the hopper 37 above the rollers 214A and 214B) is continuously passed through the facing gap between the pair of rotating bodies (rollers 214A and 214B), so that a constant amount of the processing object is obtained. Can be supplied (discharged) to the downstream process.

JP2012-120956A

  According to the supply controller 211 described in Patent Document 1 as described above, when the processing object is intermittently supplied from the backhoe or the like to the hopper 37, the processing object faces the pair of rotating bodies (rollers 214A and 214B). By passing through the gap, it is metered into a predetermined amount continuously (not intermittently) and supplied to the downstream side, so that the object to be treated and other materials (such as soil improvement materials) in the downstream process Can be stably mixed at a desired mixing ratio.

  However, when the object to be treated is a substance that easily adheres, such as a viscous soil, the viscous soil may adhere to the portion of the supply controller 211 that is in contact with the viscous soil. It was confirmed that there was a supply failure (discharge failure) of the object to be processed, such as being unable to supply or making the supply itself difficult.

  Further, in the hopper 37 attached to the upper part of the supply controller 211, the processing object near the pair of rotating bodies (rollers 214A and 214B) is discharged to the downstream side, but the surface side is made of adhesive force or fibrous material. Phenomenon (arch action) that remains in the shape of an arch due to the influence of the existence or the like (arch action) occurs (see FIG. 9A), and the processing object is not supplied well to the facing gap, thereby removing the processing object. It was also confirmed that there was a supply failure (discharge failure) of the object to be processed, such as being unable to continuously supply a fixed amount or making the supply itself difficult.

  In addition, when the object to be processed is fiber, grassroots-mixed earth or the like, it was also confirmed that the supply of the object to be processed (defective discharge) occurs due to wrapping around the pair of rotating bodies (rollers 214A and 214B). .

  When such a supply failure (discharge failure) occurs, for example, in the field of earth and sand (soil) improvement, the object to be processed (viscous soil, fibrous soil, grass-root mixed soil, etc.) and improvement It is difficult to continuously mix the (modified) material with a predetermined mixing ratio, resulting in variations in the amount of addition (mixing ratio) of the improved (modified) material, and obtaining the desired improved (modified) effect. It is not possible to cause a decrease in construction capacity.

  The present invention has been made in view of such circumstances, and even when it is a relatively simple and low-cost configuration, even when viscous soil such as viscous soil, fibrous soil, grass-root-mixed sediment is used as a supply object. An object of the present invention is to provide a fixed amount supply device capable of supplying a fixed amount continuously and stably.

Therefore, the quantitative supply device according to the present invention is
A quantitative supply device for continuously supplying a material containing viscous earth and sand,
A casing into which the material to be supplied is carried;
A pair of cylindrical rotary rolls having a rotating shaft provided in parallel with a facing gap below the casing, both of which are driven to rotate downward from the upper side toward the facing gap, and on the cylindrical outer periphery. A pair of rotating rolls protruding to a predetermined and provided with a scraping blade;
With
While supplying the supply object accommodated above the pair of rotating rolls in the casing from the upper side to the lower side of the facing gap, continuously and quantitatively supplied to the downstream side,
A scraper that peels off the material attached to the cylindrical outer periphery of the pair of rotating rolls ;
A partition plate is provided above the pair of rotating rolls in the casing so as to extend in a direction substantially parallel to the rotating shaft of the rotating roll and partition the inside of the casing, and the supply object is carried into the side where the facing gap exists. It is characterized by.

  In this invention, when the said partition plate is seen from a perpendicular direction, it can set to the position substantially corresponded with the rotating shaft of one rotating roll, It can be characterized by the above-mentioned.

  In this invention, the horizontal partition plate extended in the direction substantially orthogonal to the rotating shaft of a rotary roll and partitioning the inside of a casing above the pair of rotary roll in a casing can be characterized by the above-mentioned.

  In the present invention, a rotating blade that is integrally attached to the rotating blade drive shaft and is rotated may be provided above the pair of rotating rolls in the casing.

  In this invention, the said rotary blade drive shaft can be arrange | positioned in the direction substantially orthogonal to the rotating shaft of a pair of said rotating roll.

  According to the present invention, although the construction is relatively simple and low-cost, even if viscous earth and sand such as viscous soil, fibrous earth and grass-root mixed earth and sand are used as the article to be fed, It is possible to provide a fixed amount supply device that can stably supply a fixed amount.

(A) is a front view which shows an example of the whole structure of the fixed quantity supply system of one embodiment which concerns on this invention, (B) is a side view of (A), (C) is a plane of (A) FIG. (A) is sectional drawing (PP arrow line view of FIG.1 (C)) of the fixed quantity supply apparatus utilized for the fixed quantity supply system which concerns on embodiment same as the above, (B) expands the A section. FIG. It is side sectional drawing (QQ arrow line view of FIG. 2 (A)) of the fixed quantity supply apparatus which concerns on embodiment same as the above. It is a top view of the fixed quantity supply apparatus which concerns on embodiment same as the above. It is a bottom view of the fixed quantity supply apparatus which concerns on embodiment same as the above. It is a top view which shows an example at the time of installing the partition plate extended in the axial direction (left-right direction in a figure) of a rotating roll in the fixed quantity supply apparatus which concerns on embodiment same as the above. It is a top view which shows an example at the time of installing the horizontal partition plate extended in the direction (up-down direction in a figure) orthogonal to the axial direction of a rotating roll in the fixed quantity supply apparatus which concerns on embodiment same as the above. It is RR sectional drawing of FIG. (A) is sectional drawing explaining the arch action which generate | occur | produces in a fixed supply apparatus, (B) is sectional drawing for demonstrating the effect by providing a rotary blade. (A) is sectional drawing which shows an example of the conventional fixed quantity supply apparatus, (B) is a top view of (A).

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the embodiments described below.

  Here, viscous soil, fibrous sediment (for example, peat moss with a large amount of peat and moisture), grassroots mixed sediment, or a mixture of these is called “viscous sediment”, and the supplied material containing the viscous sediment is quantitatively supplied. If you want to.

  As shown in FIGS. 1A to 1C, a quantitative supply system 100 according to the present embodiment includes a hopper 101 into which “viscous sediment” (supplied material) is intermittently charged by a backhoe or the like, and a hopper A constant quantity supply device 110 that continuously supplies (discharges and carries out) a supply object accommodated in 101 to a downstream side in a certain amount (predetermined amount), and a constant quantity supply from the constant quantity supply device 110. And a conveying device 120 such as a belt conveyor that conveys the material to be supplied to a processing device (not shown) in a downstream process.

  In addition, as a processing apparatus, the to-be-supplied material conveyed (supplied) from the conveying apparatus 120 is made into a processing target object, for example, this is grind | pulverized to small size with a granulation apparatus (rotary crushing mixer), and predetermined | prescribed It is possible to provide an apparatus for performing soil quality improvement treatment by adding an improving (reforming) material at a mixing ratio of

  In addition, as another example of the processing apparatus, an object to be supplied (supplied) from the transfer apparatus 120 is used as a processing object, and this is crushed to a small size by a granulation apparatus (rotary crushing mixer). Further, a device for purifying by heating a temperature of a processing object to be volatilized by mixing a substance for generating heat such as quick lime at a predetermined mixing ratio, and the like can be used.

  In the present invention, volatile substances include volatile organic compounds (volatile chemical substances such as acetaldehyde, acetone, trichloroethylene, benzene and toluene, volatile oil such as gasoline, organic solvents such as toluene and trichloroethylene), mercury, and the like. And volatile metals such as arsenic and metal compounds, and volatile inorganic compounds such as ammonia and hydrogen sulfide.

Here, the quantitative supply device 110 according to the present embodiment is configured as follows.
That is, as shown in FIGS. 1 (A) to 1 (C) and FIG. 2 (A), the constant supply device 110 includes a casing 111 that is disposed below the hopper 101 and into which an article to be supplied is carried. A pair of rotating rolls 112A and 112B disposed below the casing 111 is provided.

  The pair of rotating rolls 112A and 112B are arranged in parallel (arranged in parallel) around the rotating shafts 115A and 115B as shown in FIGS. 1 to 5 and the like, and FIG. As shown by 5 etc., it is configured to be rotationally driven by a mutually independent electric motor 113A, 113B via a speed reducer (chain mechanism) or the like. However, the pair of rotating rolls 112A and 112B may be rotationally connected using a gear mechanism, a chain, a belt, and the like, and may be rotationally driven by a common drive source (electric motor).

  As shown in FIG. 2 (A), the pair of rotating rolls 112A and 112B is configured so that the material to be supplied on the upper side of the pair of rotating rolls 112A and 112B is transferred to the facing gap X between the pair of rotating rolls 112A and 112B (see FIG. C), also see FIG. 5 etc.), each of the rotating rolls 112A, 112B has the scraping blades 114A, 114B on the upper side of the rotating shafts 115A, 115B respectively facing the facing gap X from the upper side. And is driven to rotate downward. Specifically, in FIG. 2A, the rotary roll 112A is rotated in the right direction (clockwise), and the rotary roll 112B is rotated in the left direction (counterclockwise).

  In this way, by rotating each of the pair of rotating rolls 112A and 112B arranged in parallel downward from the upper side toward the facing gap X, the supply object located above passes through the facing gap X. You can send it down.

  The pair of rotating rolls 112A and 112B is configured as a cylindrical (drum-shaped) rotating body having the rotating shafts 115A and 115B as central axes, and the scraping blades 114A and 114B are flat steel plate-shaped around them. It is an element and is mounted in a convex shape in the radial direction (direction substantially orthogonal to the rotating shafts 115A and 115B) (FIG. 2A, FIG. 3, FIG. 4, FIG. 5, etc.). The rotating rolls 112A and 112B can use a hollow shape obtained by winding a steel plate in a cylindrical shape, and use a material in which rubber or the like is adhered or coated on the outer peripheral surface in order to reduce noise or the like. be able to.

  A plurality of scraping blades 114A and 114B attached to the outer circumferences of the rotary rolls 112A and 112B are provided in the circumferential direction (eight locations in FIG. 2A), and the direction (rotation) along the rotation shafts 115A and 115B. A plurality of locations are provided in the direction of the central axis (in FIG. 3, there are 6 rows and 7 rows alternately).

  In addition, as shown in FIG. 4, FIG. 5, etc., the scraping blade 114A attached to the outer periphery of the rotating roll 112A and the scraping blade 114B attached to the outer periphery of the rotating roll 112B are mutually in a facing gap. In order not to collide, they are alternately arranged at a predetermined interval.

  However, the number of scraping blades 114A and 114B attached to the outer periphery of the rotating rolls 112A and 112B, the mounting pitch, the layout, and the like can be appropriately changed according to the state (characteristics) of the supply object.

  According to the quantitative supply device 110 having such a configuration, the material to be supplied intermittently introduced into the hopper 101 and the casing 111 by the backhoe or the like is provided on the outer periphery of the pair of rotating rolls 112A and 112B arranged face to face. When the scraping blades 114A and 114B are rotated, the scraping blades 114A and 114B are sequentially moved to the facing gap X while being crushed to a predetermined size.

  As shown in FIG. 2A, the facing gap X is configured such that the interval can be adjusted to an appropriate value by changing the distance between the axes of the rotating shafts 115A and 115B. By adjusting it to a predetermined value, it is possible to adjust the amount per unit time of the supply object that passes through the facing gap X and is continuously supplied (discharged) (falls) downward.

  In addition, adjusting the rotational speed of the rotating rolls 112A and 112B can also adjust the amount per unit time of the supply object that passes through the facing gap X and is continuously discharged (dropped) downward. it can

  According to the quantitative supply device 110 according to the present embodiment having such a configuration, the supply object can be continuously supplied quantitatively to the downstream side (downstream process or the like).

  However, when the material to be supplied is a substance that easily adheres, such as viscous soil, the viscous soil may adhere to the outer peripheral portions of the pair of rotating rolls 112A and 112B. In such a case, the facing gap X There is a risk that a supply failure such as the fact that the supply object cannot be continuously supplied in a constant quantity or the supply itself becomes difficult will occur.

  In addition, when the material to be supplied is fibrous earth and sand (peat, peat moss, etc.), grass root mixed earth and sand, etc., the facing gap X is blocked by winding around the pair of rotating rolls 112A and 112B, etc. There is a risk that a supply failure such as the inability to continuously supply a fixed amount or the supply itself becomes difficult.

  For this reason, in this embodiment, as shown in an enlarged view in FIGS. 2A and 2B, the material to be supplied attached to the outer peripheral surface in the vicinity of the lower end of the rotating roll 112A (112B) is peeled off. A scraper 116A (116B) was provided.

  As shown in FIGS. 2A, 2B, and 6, the scraper 116A (116B) is formed of, for example, a steel plate, fixed to the casing 111, and the rotating shaft 115A (115B) of the rotating roll 112A (112B). ) From the direction substantially orthogonal to the outer peripheral lower end of the rotary roll 112A (112B) (tangential direction).

  According to the quantitative supply device 110 provided with such a scraper 116A (116B), as shown in FIG. 2 (B), the supply object attached to or wound around the outer periphery of the rotary roll 112A (112B) Since it can act as a wedge and peel off the supplied object attached, etc., it can be maintained in a good gap for a long time without closing the facing gap X. Regardless of the type or properties of the material to be supplied, it is possible to stably and continuously supply a quantity over a long period of time.

  Here, the scraper 116A (116B) has been described as a steel plate. However, the present invention is not limited to this, and other materials made of resin such as rubber and plastic can also be used.

  A predetermined gap can be provided between the scraper 116A (116B) and the outer periphery of the rotary roll 112A (112B) so that foreign matter or the like is caught between the two and the sticking or the like hardly occurs. When 116A (116B) has elasticity, it can also be set as the structure contacted lightly.

  By the way, in this Embodiment, the partition plate 200 is provided in the part in which the to-be-supplied object in the casing 111 is accommodated, ie, the upper space of a pair of rotating rolls 112A and 112B in the casing 111.

  As shown in FIG. 2 (A), FIG. 6 and the like, the partition plate 200 has a space in the casing 111 in which a material to be supplied is accommodated in a direction substantially parallel to the rotation shaft 115B of the rotary roll 112B. It arrange | positions so that it may partition on the plane which extends. As shown in FIG. 2A, the position of the partition plate 200 is set at a position substantially coincident with the rotation shaft 115B when viewed from the vertical direction.

  Then, as shown in FIG. 2A, the material to be supplied is supplied from the hopper 101 and accommodated on the side where the facing gap X of the casing 111 exists in the space partitioned by the partition plate 200. It is like that.

  When such a partition plate 200 is not provided, when the rotary rolls 112A and 112B are rotated from the upper side toward the facing gap X in a direction approaching each other (in FIG. 2A, the rotary roll 112A is moved in the right direction (clockwise). If the rotating roll 112B is rotated leftward (counterclockwise)), depending on the conditions, the material to be supplied may not be sent out from the upper side to the lower side of the facing gap X. Was confirmed. This is because the rotation of the pair of rotating rolls 112A and 112B is symmetric with respect to the facing gap X, and therefore, the supplied object that the rotating roll 112A is moved by the rotating movement and the supplied object that the rotating roll 112B is moved by the rotating movement. This is thought to be due to the fact that the amount of goods is almost the same amount and offset each other.

  However, when the partition plate 200 is provided, as shown in FIG. 2A, there are many portions on the rotating roll 112A side that come into contact with the object to be supplied, and therefore there are more objects to be supplied that are moved by the rotational motion. On the other hand, the rotating roll 112B side has few parts in contact with the supply object due to the presence of the partition plate 200, and therefore the supply object moved by the rotational motion is less than the rotation roll 112A side. For this reason, since the supply object to which the rotating roll 112A is moved by the rotation motion and the supply object to be moved by the rotation roll 112B are unbalanced, the entire amount does not cancel each other. Thus, the object to be supplied can be sent out from the upper side to the lower side of the facing gap X.

  In other words, the rotating roll 112A has a function of transporting the supply object to the facing gap X, and the rotating roll 112B in combination with the rotating roll 112A has a function of pushing the supply object downward from the facing gap X. It is considered that the object to be supplied can be sent out from the upper side to the lower side of the facing gap X.

  However, the position of the partition plate 200 is not limited to a position substantially coincident with the rotating shaft 115B as shown in FIG. 2A, and can be changed appropriately.

  In addition, although the partition plate 200 is arrange | positioned in the direction substantially parallel to the rotating shafts 115A and 115B of the rotating rolls 112A and 112B, as shown in FIGS. 7 and 8, the rotating plates 115A and 115B of the rotating rolls 112A and 112B A partition plate (horizontal partition plate) 201 can also be provided in a direction that is substantially orthogonal.

  By providing such a partition plate (lateral partition plate) 201, the length of the facing gap X in the axial direction of the rotating shafts 115A and 115B of the rotary rolls 112A and 112B can be changed, so The area (passage area, opening area) of the gap X can be changed, and thus the supply amount (discharge amount, delivery amount) of the supply object from the upper side to the lower side of the facing gap X can be adjusted as desired. Can do. In addition, the position of the partition plate (lateral partition plate) 201 is not limited to the position illustrated in FIGS. 7 and 8, and can be configured to be appropriately changed.

  That is, according to the present embodiment, the supply amount (discharge amount, delivery amount) of the object to be supplied from the upper side to the lower side of the facing gap X is adjusted by adjusting the rotation speed of the rotating rolls 112A and 112B and the above-mentioned facing surface. Adjustment of the size of the gap X (width dimension, that is, the area of the facing gap X), position adjustment of the partition plate 200 (adjustment of the unbalance), and position adjustment of the partition plate (lateral partition plate) 201 (face-to-face clearance X) , That is, adjustment of the area of the facing gap X) can be easily performed in a wide range.

  In the present embodiment, the following fears can be solved.

  That is, when the material to be supplied is viscous soil or the like, and when fiber, grass roots or the like are mixed in the viscous soil, an arch action is generated above the pair of rotating rolls 112A and 112B (see FIG. 9 (A)), there is a risk that the supply object will not be supplied well to the facing gap X, and the supply object may not be supplied continuously in a fixed quantity or supply may be difficult. is there.

  For this reason, in the present embodiment, in the casing 111, an arch action is unlikely to occur above the pair of rotating rolls 112A and 112B, or even if it occurs, the arch portion can be immediately dropped downward. The rotary blades 300A and 300B that are integrally attached to the rotary blade drive shafts (rotary blade drive shafts) 301A and 301B are rotated.

  The rotary blade driving shaft 301A (301B) and the rotary blade 300A (300B) rotating integrally therewith are configured to be rotationally driven by a drive motor 302A (302B).

  The rotary blades 300A and 300B are configured by plate-like elements so as to protrude by a predetermined amount in a substantially orthogonal direction (radial direction) to the rotation center axis of the rotary blade drive shafts 301A and 301B. The rotary blades 300A and 300B can be provided at a plurality of locations with respect to the axial direction of the rotary blade drive shafts 301A and 301B.

  As shown in FIGS. 2A, 3, 4, etc., the rotation center axes of the rotary blade drive shafts 301 </ b> A and 301 </ b> B are substantially parallel and substantially orthogonal to the rotation center axes of the rotary rolls 112 </ b> A and 112 </ b> B. It is arranged.

  As described above, the rotary blade drive shafts 301A and 301B are provided above the rotary rolls 112A and 112B in the casing 111, and the rotary blades 300A and 300B that are integrally attached to the rotary rollers 300A and 300B are rotated. 9 (A) and FIG. 9 (B), even if an arch action is about to occur, the rotational movement of the rotary blades 300A and 300B tears the arch portion and moves (falls) downward, and the facing gap X Since the rotating operation of the rotary blades 300A and 300B disposed above exerts the action of pushing the arch portion that has fallen downward, the situation where the supply object is not supplied to the facing gap X as in the past is avoided, The supplied material can be satisfactorily supplied to the facing gap X. Therefore, viscous soil, fibrous soil, grass-root mixed soil and the like are used as the supplied material. Even if, it can be quantitatively fed continuously and stably to be feed.

  In particular, when the rotary blades 300A and 300B are disposed in the vicinity of the inner wall of the casing 111 as in the present embodiment, the casing 111 can be dropped by cutting the proximal end portion of the arch portion caused by the arch action. The fallen arch portion (viscous earth and sand) can be pushed downward by the rotary blades 300A and 300B provided near the center of the center of the earth, so that the viscous earth and sand caught in the rotational motion of the pair of rotating rolls 112A and 112B is another earth and sand Since it moves to the predetermined gap X while taking in, stable and efficient quantitative supply can be realized even when viscous sediment is used as the supply object.

  In the present embodiment, the rotation direction of the rotary blade drive shaft 301A and the rotation direction of the rotary blade drive shaft 301B both rotate downward from above as shown in FIG. The rotating blade drive shaft 301A is set in the right direction (clockwise) in FIG. 3, and the rotary blade drive shaft 301B is set in the left direction (counterclockwise) in FIG.

  However, the present invention is not limited to this, and one can rotate downward from above to the other, and the other can rotate upward from below to both.

  Here, the rotary blade drive shafts are two axes 301A and 301B. However, the present invention is not limited to this, and the rotary blade drive shaft may be composed of one axis or three or more axes.

  Further, in the present embodiment, the rotary blade drive shafts 301A and 301B are arranged so as to extend in a direction substantially orthogonal to the rotary shafts 115A and 115B of the rotary rolls 112A and 112B. However, the present invention is not limited to this. Alternatively, the rotary blade drive shaft may be disposed in a direction substantially parallel to or intersecting with the rotation shaft (115A, 115B) (inclination direction).

  As described above, according to the fixed-quantity supply device 110 according to the present embodiment, since the scraper 116A (116B) is provided, the supplied material attached to or wound around the outer periphery of the rotary roll 112A (112B). Since it acts like a wedge against an object and can peel off the supplied object attached, etc., it can be maintained in a good gap for a long time without closing the facing gap X, Therefore, it is possible to stably and continuously supply a constant amount over a long period of time regardless of the type and properties of the supply object.

  In addition, according to the quantitative supply device 110 according to the present embodiment, since the partition plate 200 is provided, the rotary roll 112A side has more portions in contact with the supply object, and thus is moved by a rotational motion. While there are more supplies, the rotating roll 112B side has few parts in contact with the supply due to the presence of the partition plate 200. Since the number of the supplies to be moved by the rotating motion of the rotating roll 112A and the materials to be moved of the rotating roll 112B by the rotating motion are unbalanced, the total amount cancels out. It is possible to feed the supplied material from the upper side to the lower side of the facing gap X, so that it can take a long time regardless of the type, properties, quantity, etc. of the supplied material. Possible contribution to being able to stably continuously dispensed with Te.

Further, according to the quantitative supply device 110 according to the present embodiment, the partition plate (horizontal partition plate) 201 is provided and the width of the facing gap X can be changed. Therefore, the rotating rolls 112A and 112B are provided. Since the length and width (that is, the opening area) of the facing gap X in the axial direction of the rotating shafts 115A and 115B can be changed, the area of the facing gap X through which the supply object passes can be changed. Thus, the supply amount (discharge amount, delivery amount) of the object to be supplied from the upper side to the lower side of the facing gap X can be adjusted as desired within a wide range from a small amount to a large amount. Indeed, for ^example, it has confirmed that it is adjustable from 30m ³ / h~150m 3 / h.

  Further, according to the quantitative supply device 110 according to the present embodiment, the rotary blade drive shafts 301A and 301B are provided above the rotary rolls 112A and 112B in the casing 111, and are rotated integrally attached thereto. Since the blades 300A and 300B are configured to rotate, as shown in FIGS. 9A and 9B, even if an arch action is about to occur, the rotation operation of the rotary blades 300A and 300B tears the arch portion. In addition to moving (falling) downward, the rotating operation of the rotary blades 300A and 300B disposed above the facing gap X acts to push the dropped arch portion downward. Therefore, even if viscous soil, fibrous soil, grassroots-mixed soil, etc. are used as the supplied material, the supplied material is connected. It can be dispensed stable manner.

  As described above, according to the present embodiment, it is a relatively simple and low-cost configuration, but even when viscous soil, fibrous soil, grass-root mixed soil, or the like is used as a supply object, It is possible to provide a fixed amount supply device capable of supplying a fixed amount continuously and stably.

  And according to the fixed quantity supply apparatus which concerns on this Embodiment, the supply defect of viscous earth and sand can be improved, and this enables the continuous stable supply, and therefore the work efficiency (construction capability) as a whole processing system. , Processing capacity) can be improved.

  Moreover, according to the fixed quantity supply apparatus which concerns on this Embodiment, since clay sediment can be easily handled as a to-be-supplied material, scraping blades 114A and 114B attached to the outer periphery of a pair of rotating rolls rotate. As a result, the supplied material can be crushed to a predetermined size, so that the remaining soil generated during construction work can be cleaned up relatively efficiently, thereby contributing to the effective use of the remaining soil. .

  Furthermore, according to the fixed-quantity supply apparatus which concerns on this Embodiment, when scraping blade 114A, 114B attached to the outer periphery of a pair of rotation roll rotates, the fiber of fibrous earth and sand (peat) is cut | disconnected, and fibrous earth and sand In the wide use in the agricultural field using fiber earth and sand (peat), such as improving the effect of unraveling (peat) and promoting the homogenization of mixing of improving materials (modifiers) Can also contribute greatly.

  The embodiments according to the present invention described above are merely examples for explaining the present invention, and various modifications can be made without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 100 Fixed supply system 101 Hopper 110 Fixed supply apparatus 111 Casing 112A, 112B Rotating roll 115A, 115B Rotating shaft 113A, 113B Electric motor 114A, 114B Scraping blade 116A, 116B Scraper 120 Conveying device 200 Partition plate 201 Partition plate (horizontal partition plate)
300A, 300B Rotating blades 301A, 301B Rotating blade drive shaft (Rotating blade drive shaft)
302A, 302B Drive motor X Face-to-face clearance

Claims (5)

A quantitative supply device for continuously supplying a material containing viscous earth and sand,
A casing into which the material to be supplied is carried;
A pair of cylindrical rotary rolls having a rotating shaft provided in parallel with a facing gap below the casing, both of which are driven to rotate downward from the upper side toward the facing gap, and on the cylindrical outer periphery. A pair of rotating rolls protruding to a predetermined and provided with a scraping blade;
With
While supplying the supply object accommodated above the pair of rotating rolls in the casing from the upper side to the lower side of the facing gap, continuously and quantitatively supplied to the downstream side,
A scraper that peels off the material attached to the cylindrical outer periphery of the pair of rotating rolls ;
A partition plate is provided above the pair of rotating rolls in the casing so as to extend in a direction substantially parallel to the rotating shaft of the rotating roll and partition the inside of the casing, and the supply object is carried into the side where the facing gap exists. A quantitative supply device characterized by. The quantitative supply device according to claim 1, wherein the partition plate is set at a position substantially coincident with a rotation axis of one rotary roll when viewed from the vertical direction. Above the pair of rotating rolls in the casing, according to claim 1 or claim 2 extends in the rotation axis in a direction substantially perpendicular to the rotating roll, characterized in that a horizontal partition which divides the inside of the casing Metering device. Above the pair of rotating rolls in the casing, the rotary blade driving shaft according to any one of claims 1 to 3, characterized in that a rotary blade that is rotated integrally attached to Metering device. The quantitative supply device according to claim 4 , wherein the rotary blade drive shaft is disposed in a direction substantially orthogonal to the rotation shafts of the pair of rotary rolls.

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