JPH11337455A - Particulate material measuring apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately measure the moisture content or the like of a particulate material such as chips without requiring a large set area. SOLUTION: Chips or the like guided to the turntable main body 34 supported in a rotatable manner by a shaft through the sample chute 2 supported in an inclined state within a chute 13 are leveled to an almost constant thickness by a leveling jig 4 and the moisture content in the chips or the like is measured by the detector 5 arranged on the turntable main body 34. After the completion of measurement, the chips or the like on the turntable main body 34 come into contact with a scraper 6 by rotating the turntable main body 34 to be automatically returned into the chute 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to powders such as chips, meriken powder, sugar, etc.
The present invention relates to a measuring device for measuring one or more kinds of contents such as fat, nicotine, sugar content, and thickness on a turntable.

[0002]

2. Description of the Related Art Conventionally, a storage silo 11 shown in FIG. 6 has been known for storing wood chips or a mixture of wood chips and cement (hereinafter referred to as chips, etc.) (for example, JP-A-10-45256). Reference). The storage silo 11 has a cylindrical side wall 111a and a flat bottom wall 111b, and has a storage tank 111 for storing chips and the like.
A sliding frame 112 slidable along the upper surface of the bottom wall 111b of the storage tank 111, a cylinder device 113 for reciprocating the sliding frame 112, and a direction substantially orthogonal to the reciprocating direction of the sliding frame 112. A gutter-like body 114 provided on a bottom wall 111b that is recessed into a groove, and a discharge screw 115 rotatably supported in the gutter-like body 114.

The sliding frame 112
The two arc-shaped bodies 112a, 112a having substantially the same radius of curvature as the cylindrical side wall 111a of the storage tank 111 and having a length substantially half the circumference thereof are connected to each other. The sliding frame 112 has both ends that slide on the bottom wall 111b along guides (not shown) provided on the bottom wall 111b.

The cylinder device 113 has a bottom wall 111.
b, a cylinder body 113b having a base end connected to a support member 113a fixed to the base of FIG.
Inner cylinder 113c to which the tip of piston rod 3b is connected
The inner cylinder 113c is accommodated inside, and is slid back and forth while being held by the opening K formed in the side wall 111a of the storage tank 111.
At the base end of 3c, an outer cylinder 113d whose front end is connected to the sliding frame 112 described above, respectively,
A gasket 11 covering the periphery of the outer cylinder 113d is provided near the outside of the opening K formed in the side wall 111a of the storage tank 111.
3e is provided.

Therefore, when the cylinder device 113 is expanded and contracted, the sliding frame 112 reciprocates along the guide. As a result, the arcs 112a, 112a of the sliding frame 112 are substantially attached to the side wall 111a near the cylinder device 113. It reciprocates reciprocally along the upper surface of the flat bottom wall 111b between the contact position and the position substantially contacting the side wall 111a facing the cylinder device 113. In this way, the chips and the like deposited on the bottom of the storage tank 111 are raked by the arcs 112a and 112a at the approximate center of the storage tank 111, dropped into the gutter 114, and then discharged from the storage tank 111 by the discharge screw 115. Is discharged.

By the way, the amount of moisture in the chips and the like discharged from the storage silo 11 is measured, and the measured amount is used to set the amount of the chemical solution to be introduced with respect to the amount of the chips and the like. The apparatus is controlled (for example, see Japanese Patent Application Laid-Open No. 63-180855). That is, when chips or the like stored in the storage silo 11 are transported via a conveyor, a part of the chips is taken out through an air shooter and crushed by crushing means, and then the water content of the crushed chips or the like is reduced. The measured amount is set based on the measured value, and the tip and the like after the measurement are returned again via the air shooter.

[0007]

In the above-described apparatus for measuring the moisture content of chips or the like, the transfer means is required to take out the chips or the like during the transport process and to return the chips or the like after the measurement to the original state. With
A pulverizing means is required, the measuring device becomes large, and not only must a large area be secured for installation, but also the cost increases.

The moisture content of the ground chips and the like is measured in the process of being transported by the belt conveyor. However, since the thickness of the chips and the like is large and small, the case where a thick layer is measured is not included. When measuring a layer having a small thickness, the amount of water contained decreases, and the measurement results vary. Therefore, since the amount of water varies depending on the thickness of the chip or the like, it becomes difficult to accurately control the amount of the chemical solution to be introduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides an apparatus for measuring a granular material capable of accurately measuring the amount of water and the like without requiring a large installation area. It is.

[0010]

According to a first aspect of the present invention, there is provided a sample chute supported in an inclined state in a chute extending substantially vertically, and a shaft rotatably facing a lower end of the sample chute. A turntable provided with a supported turntable main body, a leveling tool disposed above the turntable main body, a detector installed above the turntable main body, and substantially contacting an upper surface of the turntable main body. A part of the powder and granules that fall down the chute is guided to the rotating turntable body via the sample chute, and is leveled by the leveling tool to detect the water content etc. After being measured by a measuring instrument, it is returned into the chute by a scraper.

For this reason, the granular material guided through the sample chute on the rotating turntable main body is leveled to a certain thickness by the leveling tool, and the moisture content is measured by the detector. Variations in the measured value due to the thickness of the granular material do not occur, and the water content and the like can be accurately measured. Moreover, the granular material on which the measurement is completed on the rotating turntable body can be automatically returned into the chute by contacting the scraper provided so as to substantially contact the upper surface of the turntable body, It is possible to always introduce a new powder and measure its water content and the like. In addition, a compact structure in which the measuring device is simply attached to the chute may be used, and the installation space is not restricted and the installation can be performed at low cost.

When a rotary brush is used as a leveling tool, the upper portion of the powder or granular material on the turntable body can be scattered and leveled to a substantially constant thickness by the rotational force of the rotary brush. It is suitable for flattening fuzzy wood chips, sawdust, wood chips and the like.

Further, when a scraping plate that rotates integrally with the turntable body is attached to the lower surface side of the turntable body, powder particles spilled from the upper surface of the turntable body can be returned into the chute again. It is possible to prevent the granular material from staying on the lower surface of the table body.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a partially omitted manufacturing plant 10 provided with a granular material measuring apparatus 1 of the present invention.

First, the manufacturing plant 10 will be briefly described. This manufacturing plant 10 mixes chips with cement and the like to produce a solidified wood chip formed product and a solidified cement / wood flake formed product. And a hopper scale 14 for receiving the chips and the like stored in the storage silo 11 through the discharge screw feeder 12 and the chute 13 and measuring the weight thereof through the load cell 141, and a cement (not shown). Cement meter 1 for measuring the weight of cement supplied from a hopper via load cell 151
5 is a mixer 1 for receiving the measured chips and the like and cement via a chute 16, adding water and stirring and mixing.
The measuring device 1 described later is attached to the chute 13. Then, the moisture content of the chip and the like measured by the detector 5 of the measuring device 1 and the load cell 14
1, 151 and the weight of the cement and the weight of the cement are input to the controller 18 and the controller 1
Numeral 8 controls the supply amount of the chips and the like, the supply amount of the cement, and the supply amount of the water to be supplied to the mixer 17 at an appropriate ratio based on the amount of the water such as the chips. In this case, if necessary, an extender and a binder are metered and supplied in addition to the cement.

FIGS. 2 to 4 show one embodiment of the measuring apparatus 1 described above. This measuring device 1
Comprises a sample chute 2 disposed in an inclined state in a chute 13 connecting the storage silo 11 and the hopper scale 14, and a turntable body 34 rotatably supported facing the lower end of the sample chute 2. A turntable 3, a leveling tool 4 for leveling the thickness of a chip or the like guided through the sample chute 2 onto the turntable main body 34, and installed above the turntable main body 34 and guided by the turntable main body 34. And a scraper 6 for returning chips and the like on the turntable main body 34 measured by the detector 5 to the inside of the chute 13. The turntable 3 is provided in a detection box 7 attached to the peripheral wall 131 of the chute 13.

The cross section of the chute 13 is not limited to a square, but may be any shape such as a circle.

The sample chute 2 guides a part of chips or the like falling in the chute 13 to the turntable body 34, and supports 13a provided on another peripheral wall 132 adjacent to one peripheral wall 131 of the chute 13. Supported in an inclined state. In this embodiment, the sample chute 2 is exemplified by a gutter having a U-shaped cross section. However, the sample chute 2 is not limited to the U-shaped cross section, and may have a semicircular cross-section, a wavy shape, a triangular shape, or the like. The material is not particularly limited.

The turntable 3 protrudes into the detection box 7 through an electric motor 31 fixed to a peripheral wall 131 of the chute 13 and an insertion hole 71a (see FIG. 4) formed in a bottom plate 71 of the detection box 7. A cylindrical portion 32 connected to an output shaft 31a of the electric motor 31 via a receiving plate 321 (see FIG. 4); a plurality of scraping plate receiving members 33 radially fixed to the outer peripheral surface of the cylindrical portion 32; Turntable body 3 fixed to the upper end surface of plate receiving member 33
4 and the scraping plate 3 fixed to the scraping plate receiving member 33
By rotating the electric motor 31, the turntable body 34 can be rotated via the receiving plate 321, the cylindrical portion 32, and the scraping plate receiving member 33.

The turntable main body 34 is formed in a ring shape so that a constant gap S is formed between the inner peripheral end surface and the outer peripheral surface of the cylindrical portion 32. Then, a part of the turntable body 34 is attached to
1 protrudes into the chute 13 beyond the substantially rectangular through-hole 131a (see FIG. 4), and the lower end of the sample chute 2 is above the turntable body 34 protruding into the chute 13. It is positioned (see FIG. 3).

The scraping plate 35 is formed of a flexible material such as a rubber plate, a plastic plate, a wooden plate or a copper plate, and its lower end edge is substantially slidably in contact with the upper surface of the bottom plate 71 of the detection box 7. I have.

The bottom plate 71 of the detection box 7 has an inner diameter slightly larger than the outer diameter of the turntable body 34,
A substantially cylindrical frame 711 that has a height slightly protruding from the upper surface of the turntable main body 34 and surrounds the periphery of the turntable main body 34 is fixed. Through hole 1 formed in 131
31a is in contact with the left and right opening ends. And the frame 7
The inner peripheral surface of 11 is substantially in sliding contact with the leading edge of the scraping plate 35 described above.

A bearing protection member 712 (see FIG. 4) having a cylindrical peripheral wall is fixed to the bottom plate 71 of the detection box 7 inside the cylindrical portion 32.
Reference numeral 12 denotes a chip or the like or dust that has entered the cylindrical portion 32 through a gap between the bottom plate 71 of the detection box 7 and the lower end of the cylindrical portion 32 and passes through the insertion hole 71 a of the bottom plate 71 of the detection box 7 to a bearing of the electric motor 31. Prevents intrusion.

The cone portion 322 covering the upper portion of the cylindrical portion 32 is for preventing chips and the like from being deposited on the upper surface of the cylindrical portion 32. However, the cone portion 322 is not necessarily provided.

On the other hand, the leveling tool 4 includes a rotatable rotary brush 41 disposed above a turntable main body 34 protruding inside the chute 13 through the through-hole 131 a of the chute 13, and one round of the chute 13. The slide plate 42 is fixed to the inner surface of the wall 131 and regulates the height of the opening of the through hole 131a.

The rotating brush 41 is connected to an output shaft of an electric motor 412 fixed to another peripheral wall 132 adjacent to one peripheral wall 131 of the chute 13 via a support 411. The output shaft of the electric motor 412 is supported by a bearing unit 413 provided on the support 411, so that the rotational movement of the rotary brush 41 is suppressed, and the outer peripheral surface of the rotary brush 41 and the turntable body 34 are rotated. The distance from the upper surface is kept constant. Here, the rotating brush 41
It is formed by planting various fibers, plastics, metals, bamboo skewers and wooden skewers on the shaft.

The slide plate 42 is slidable in the vertical direction along the inner surface of the peripheral wall 131 of the chute 13 and can be fixed at an arbitrary position. Therefore, the upper surface of the turntable body 34 and the slide plate 42
Can be adjusted with respect to the lower edge, and the adjusted distance is kept constant. Here, the distance between the upper surface of the turntable body 34 and the lower edge of the slide plate 42 is set slightly smaller than the distance between the upper surface of the turntable body 34 and the outer peripheral surface of the rotating brush 41. Therefore, the chips and the like guided to the upper surface of the turntable body 34 are leveled by the rotating brush 41 and then leveled by the slide plate 42.

The detector 5 measures the amount of moisture of a chip or the like guided to the upper surface of the turntable main body 34 and the like. The detector 5 is fixed to the peripheral wall 131 of the chute 13 above the detection box 7. It is supported by the container holding member 51 (see FIG. 2). Here, the thickness of the detector 5 including the moisture content of the measured object,
An MM55 infra gauge manufactured and sold by Infrared Engineering Co., Ltd., which can measure one or more kinds of content such as protein, fat, nicotine, sugar content, etc., can be suitably used. Detector 5
The light-emitting sensor 5a and the light-receiving sensor 5b are surrounded by a measuring unit cover 52 (see FIG. 2), and the lower end of the measuring unit cover 52 is
Through the insertion hole (not shown) formed in the detection box 7 and opens downward. The light emitting sensor 5a and the light receiving sensor 5b of the detector 5 are arranged to face the turntable body.

Note that, inside the measuring section cover 52, one end of an air pipe 74 (see FIG. 2) connected to an air source (not shown) is guided through the inside of the detection box 7, and the air pipe 74 The air guided into the measurement unit cover 52 through the air passage fills the measurement unit cover 52, and then the measurement unit cover 5
It is discharged into the detection box 7 from the opening at the lower end of the second box. Therefore, chips and dust floating in the detection box 7
It is possible to prevent the intrusion into the measuring section cover 52 and the attachment to the light emitting sensor 5a and the light receiving sensor 5b, thereby lowering the measurement accuracy.

The scraper 6 is vertically slidable along the inner surface of the peripheral wall 131 of the chute 13 and can be fixed at an arbitrary position in the cross section V.
A scraping plate receiving member 61 having a character shape and a scraping plate 62 fixed to the scraping plate receiving member 61 so that the lower end edge thereof substantially slides on the upper surface of the turntable body 34.

The scraping plate 62 is, like the scraping plate 35 described above, a rubber plate, a plastic plate,
Alternatively, it is formed of a flexible material such as a wooden plate or a copper plate, and the tip of the lower end edge of the scraping plate 62 is positioned ahead of the inner peripheral edge of the turntable body 34, and the scraping plate 62 Are arranged on the turntable main body 34 so as to be inclined so that the lower end of the lower end of the turntable follows the outer peripheral edge of the turntable main body 34. Therefore, when the turntable body 34 rotates (rotates counterclockwise in FIG. 3), the chips and the like guided on the turntable body 34 contact the scraping plate 62 in the chute 13 and gradually turn. It is pushed in the direction of the outer peripheral edge of the table main body 34, and finally drops from the outer peripheral edge of the turntable main body 34 and returns into the chute 13 again.

A hinge 731 is attached to the detection box 7, and a door 73 is pivotally supported on the hinge 731 so as to be freely opened and closed. The door 73 is normally fixed at a closed position by a fastener 732 attached to the detection box 7, but is opened at the time of maintenance and inspection.

As shown in FIG. 2, an inspection window 132a is provided on the other peripheral wall 132 of the chute 13,
Turntable body 34 projecting into chute 13
And its surroundings. Further, an opening 1 is provided on a peripheral wall 133 facing the peripheral wall 131 of the chute 13.
The opening 133a is connected to an air vent chute 134 having an air vent duct 134a. Thus, unnecessary dust in the chute 13 can be discharged from the opening 133a. Next, the operation of the measuring device 1 configured as described above will be described.

The chips and the like stored in the storage silo 11 are supplied to a hopper scale 14 via a discharge screw feeder 12 and a chute 13. At this time, a part of a chip or the like that falls on the chute 13 extending substantially in the vertical direction is guided onto the turntable main body 34 by the sample chute 2 supported in the chute 13 in an inclined state. The upper surface of a chip or the like guided on the turntable body 34 rotated by the electric motor 31 is rotated by the rotating brush 41 rotated by the electric motor 412.
Leveled. That is, the tip and the like guided on the turntable main body 34 are scattered by the rotational force of the rotating brush 41, and the thickness becomes substantially constant.

Then, the chips and the like leveled by the rotating brush 41 are rotated by the rotation of the turntable body 34.
Through hole 131 formed in one peripheral wall 131 of chute 13
It is led into the detection box 7 via a. At this time, since the slide plate 42 regulates the height of the through-hole 131a,
Only chips and the like within the range between the upper surface of the turntable body 34 and the lower edge of the slide plate 42 are guided into the detection box 7, and chips and the like exceeding the height are blocked by the slide plate 42. Thus, the turntable body 34
The upper surface of the upper chip and the like is further smoothed to have a uniform thickness.

Thereafter, the chips and the like on the turntable main body 34 having a substantially constant thickness are removed from the turntable main body 3.
4 rotates and passes below the detector 5. At this time, the amount of water contained in the chip or the like is measured. When the above-described MM55 infra gauge is used as the detector 5, the thickness of the chip and the like can be measured together with the amount of water, and an error in the amount of water due to the thickness is corrected to obtain a more accurate measurement value. be able to.

When the measurement is completed, the chips and the like on the turntable body 34 are removed.
Is rotated to contact the scraping plate 62 through the inside of the through-hole 131a, and gradually the turntable body 34
Of the chute 13
Will be returned within.

As described above, since the amount of water is measured in a state where the upper surface of the chip or the like guided on the turntable main body 34 is leveled and has a constant thickness, a more accurate water amount with less error is obtained. Can be measured. Moreover,
Shoot the detection box 7 with the turntable 3
Since a compact structure that is only attached to 3 is sufficient,
There is no restriction on installation space.

On the other hand, some of the chips and the like guided on the turntable body 34 are
When it is leveled by the slide plate 42, it falls from the inner peripheral edge or the outer peripheral edge of the turntable body 34 onto the bottom plate 71 of the detection box 7. However, the spilled chips and the like are scraped off by a scraping plate 35 that rotates integrally with the turntable body 34 below the turntable body 34, and the through-hole 131a is formed.
Is returned into the chute 13 via Therefore, chips and the like do not stay in the space below the turntable body 34.

In this embodiment, the leveling tool 4 is used.
Is composed of a rotating brush 41 and a slide plate 42 corresponding to a chip or the like, but is not limited to such a configuration, and is fixed to ensure accuracy when measuring the moisture content of the chip or the like. Any material such as a comb or a saw-tooth plate may be used as long as it can be made thick. For example, when leveling things that are easy to make a certain thickness, such as sugar or flour,
It may be a simple plate, and if necessary, one or more types of leveling tools 4 may be combined.

FIG. 5 shows another embodiment of the measuring apparatus 1 of the present invention. Also in this embodiment, the same members as those of the above-described embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

The measuring device 1 of this embodiment also has a chute 1
A turntable 3 having a sample chute 2 disposed in an inclined state in the turntable 3 and a turntable body 34 rotatably supported facing the lower end of the sample chute 2;
A leveling tool 4 for leveling the thickness of a chip or the like guided to the turntable body 34 via the sample chute 2 and a moisture amount of the chip or the like installed above the turntable body 34 and guided to the turntable body 34 Detector 5 for measuring
And the turntable body 3 measured by the detector 5
And a scraper 6 for returning chips or the like on the chute 4 to the inside of the chute 13.

The detection box 7 in this embodiment comprises:
Opening 131 formed in peripheral wall 131 of chute 13
b, the bottom plate 71 of the detection box 7
And the peripheral wall 131 of the chute 13 located below the opening 131b are connected to each other via an inclined portion 71b.
The turntable main body 34 of the turntable 3 is rotatably supported inside the detection box 7, and a cylindrical peripheral wall 341 is suspended from an outer peripheral edge of the turntable main body 34. And this turntable body 34
The portion near the opening 131b of the detection box 7 projects above the inclined portion 71b provided continuously to the bottom plate 71 of the detection box 7. The sample chute 2 is introduced into the detection box 7 through a through hole 131c formed in the peripheral wall 131 of the chute 13, and the lower end of the sample chute 2 is turned inside the detection box 7 by a turntable. It is located above the main body 34.

A plurality of curved scraping plates 36 and 37 are attached to the inner peripheral surface and the outer peripheral surface of the cylindrical peripheral wall 341 of the turntable body 34 at intervals, respectively. It protrudes in the rotation direction of the main body 34. Therefore, chips or the like spilled onto the bottom plate 71 of the detection box 7 from the end edge of the turntable body 34 can be scraped out and returned to the chute 13 via the inclined portion 71b.

On the other hand, the leveling member 4 is a substantially L-shaped curved plate, and the lower edge of the curved plate 43 is connected to the detection box 7.
The other end is raised beyond the height of the turntable body 34 and is substantially in sliding contact with the outer peripheral surface of the cylindrical portion 32. And the turntable body 34
A gap e is formed between the upper surface of the first member and the curved plate member 43. Therefore, chips and the like guided on the turntable main body 34 via the sample chute 2 when the turntable main body 34 rotates and slips through the gap e between the upper surface of the turntable main body 34 and the curved plate member 43, The thickness is leveled.

The detector 5 is installed in the detection box 7 via a mounting member 53. The detector 5 allows the turntable main body 34 to pass through the curved plate 43 and have a uniform thickness. The moisture content of the upper chip and the like is measured.

The scraping device 6 includes a scraping plate receiving member 61 having one side edge fixed to the outer surface of the peripheral wall 131 of the chute 13, and a scraping device attached to the scraping plate receiving member 61. The lower edge of the scraping plate 62 is substantially in contact with the upper surface of the turntable body 34.

Also in this embodiment, a part of the chip or the like falling on the chute 13 is guided onto the turntable body 34 by the sample chute 2 supported in the chute 13 in an inclined state. The chips and the like guided on the turntable main body 34 rotated by the electric motor 31 are restricted to the range of the gap e between the curved plate member 43 constituting the leveling tool 4 and the upper surface of the turntable main body 34, Chips exceeding e are blocked by the curved plate material 43. Therefore, the chips and the like on the turntable main body 34 are leveled to a substantially constant thickness.

Thereafter, the chips and the like on the turntable main body 34 having a substantially uniform thickness pass below the detector 5 as the turntable main body 34 rotates. At this time, the amount of water contained in the chip or the like is measured.

When the measurement is completed, the chips and the like on the turntable body 34 are removed.
Is rotated so that it comes into contact with the scraping plate 62 and is gradually moved to the outer peripheral edge side of the turntable main body 34, and finally returned into the chute 13 through the inclined portion 71 b connected to the bottom plate 71 of the detection box 7. It is.

As described above, since the water content is measured in a state where the thickness of the chip or the like guided on the turntable body 34 is equalized, an accurate measurement value can be obtained.

In the case of this embodiment, since the turntable 3 and the detector 5 are provided in advance inside the detection box 7, it is only necessary to attach the detection box 7 to the chute 13, and it is possible to easily mount the chute 13. There is.

Chips spilled from the turntable body 34 onto the bottom plate 71 of the detection box 7 are removed by the scraping plate 3 which rotates integrally with the turntable body 34.
6, 37, the bottom plate 7 of the detection box 7
It is returned into the chute 13 via the inclined portion 71b connected to the first.

In each of the above embodiments,
Although the case of measuring the moisture content of a chip or the like has been described, the present invention is not limited to the measurement of the moisture content of a chip or the like. In addition to the water content of powders such as flour, granules such as rice and wheat, coffee beans, coffee powder, and feed, the thickness, protein, fat, nicotine, etc. content, sugar content, etc. One or a plurality of types can be measured and used when mixing these powders with various types at an appropriate weight ratio.

[0056]

As described above, according to the present invention, powder particles guided on a turntable body rotatably supported via a sample chute supported in an inclined state in a chute extending substantially vertically. The body is made to have a constant thickness by a leveling tool, and thereafter, the amount of water contained in the granular material is measured by a detector. Therefore, accurate measurement values can be obtained without a decrease in measurement accuracy due to variations in thickness. In addition, the granular material on the turntable main body, for which the measurement has been completed, comes into contact with the scraper and is automatically returned into the chute as the turntable main body rotates.
Therefore, a new powder can be always measured. Also, take out part of the powder and granules through an air shooter,
There is no need to return to the original state via the air shooter after measuring the water content, and a compact structure in which the measuring device for the granular material is simply attached to the chute may be used. In addition, it can be installed in a small installation area without being restricted by the installation space.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a partially omitted example of a production plant provided with a powdery and granular material measuring apparatus of the present invention.

FIG. 2 is a perspective view showing an embodiment of a powdery and granular material measuring apparatus according to the present invention.

FIG. 3 is a plan view of the granular material measuring device of FIG. 2;

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a perspective view showing another embodiment of the granular material measuring apparatus of the present invention.

FIG. 6 is a sectional view of a storage silo.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Measuring device 2 Sample chute 3 Turntable 34 Turntable main body 35,36,37 Scraping plate 4 Leveling tool 41 Rotating brush 42 Slide plate 43 Curved plate 5 Detector 5a Light emitting sensor 5b Light receiving sensor 6 Scrapping tool 62 Scrapping Plate 7 Detection box 13 Chute 131 Perimeter wall 131a Through hole

Claims (3)

[Claims] 1. A turntable having a sample chute supported in an inclined state in a chute extending substantially vertically, a turntable body rotatably supported facing a lower end of the sample chute, and a turntable body. , A detector provided above the turntable main body, and a scraper provided so as to be substantially in contact with the upper surface of the turntable main body, and the chute falls. Part of the granular material is guided to the rotating turntable body via the sample chute, leveled by the leveling tool, and its moisture content is measured by the detector, and then returned to the chute by the scraper. An apparatus for measuring a granular material, comprising: 2. The device according to claim 1, wherein the leveling device is a rotatable brush, and the upper portion of the powder and granules guided on the turntable main body is scattered by the rotating force of the brush. A measuring device for granular materials. 3. A scraping plate is attached to the lower surface of the turntable main body, and when the turntable main body rotates, powder spilled on the lower surface side of the turntable main body is returned into the chute by the scraping plate. The apparatus for measuring a granular material according to claim 1 or 2, wherein