WO2015087661A1

WO2015087661A1 - Powder supply device

Info

Publication number: WO2015087661A1
Application number: PCT/JP2014/080466
Authority: WO
Inventors: 眞由美岩子; 庄司飯塚
Original assignee: 株式会社紛研パウテックス
Priority date: 2013-12-12
Filing date: 2014-11-18
Publication date: 2015-06-18
Also published as: CN105073612A; JP5968295B2; CN105073612B; JP2015113210A

Abstract

Provided is a powder supply device that is configured so that: the outer circumference of a supply plate disk (34) is provided with an outer circumferential stepped portion (36) and a flange portion (37) extending in the circumferential direction and with a receiving plate inner cylinder (38) that is supported and anchored by way of an external cylindrical body (22) and an cylindrical receiving plate body (26) of a powder receiving tube (20) that corresponds to the outer circumferential stepped portion (36) so as to form a powder annular channel (40) that is surrounded by the outer circumferential stepped portion (36), the flange portion (37), and the receiving plate inner cylinder (38); the bottom edge of an internal circular body (24) of the powder receiving cylinder (20) positioned on top of the supply plate disk (34) is provided with a pressure adjusting tube (54) that can set a spatial region (H) above the supply plate disk (34) so as to be adjustable in the vertical direction; and while powder stored in a hopper is supplied to the supply plate disk (34) that is being rotated, the powder is smoothly discharged to a discharge port (42) via the annular channel (40) that is provided on the outer circumference of the supply plate disk (34). The spatial region (H) that forms an angle of repose for a powder with respect to the annular channel (40) on the supply plate disk (34) can be set so as to be adjustable, and handling of powders that have various physical properties or changing properties is made possible.

Description

Powder and granular material feeder

According to the present invention, the powdery material stored in the hopper is smoothly discharged to the discharge port through the annular passage provided on the outer peripheral portion of the supply disc while being supplied onto the rotationally driven supply disc. In the configuration, by setting the space region forming the repose angle of the powder to the annular passage on the supply disk disc adjustable, it is possible to handle the powder or particles having various physical properties or changes in properties. The present invention relates to a granular material supply apparatus having excellent versatility.

Heretofore, as the invention according to the present applicant, for example, in various granular material feeders such as table feeders, vibrating feeders, screw feeders, rotary feeders, etc., depending on the kind of granular material to be sent, delivery is impossible or It can be very difficult, or the amount of storage in the delivery container will cause a difference in the base pressure based on its weight, which will result in a significant difference in the amount of powder / particles delivered per hour, hence the precision From the viewpoint that it is difficult to quantitatively supply powder particles, it is generally used as a relatively small amount of fine powder, wetting material amount, dewatering cake, pigment, dye, other adhesive particles, etc. In contrast, we have proposed a powder and particulate material quantitative delivery device that can perform smooth and appropriate, reliable powder and particulate material quantitative delivery, and obtain a patent and achieve its practical use (patent statement Reference 1).

That is, as shown in FIGS. 9 and 10, the apparatus for quantitatively delivering granular material according to Patent Document 1 comprises an upper case 1 and a lower case 3 to which the required granular material is supplied. The upper case 1 and the lower case 3 are separated by a middle space plate 2, and the middle space plate 2 is provided with an appropriate number of pressure regulation openings 4. The bottom portion of the lower container 3 is composed of a fixed ring 5 forming a peripheral wall and a horizontal base 6 forming the bottom, and a portion of the fixed ring 5 is cut away to communicate with the upper portion of the discharge cylinder 7 The part 8 is formed.

The vertical rotation shaft 10 reaching the upper container 1 is provided at the center of the machine base 9 that supports the fixed parts, and the stirring blade 11 rotates in the upper container 1 and the lower container 3. The stirring body 12 and the rotating disk 13 which are rotated are fixed. The rotary base 13 is integrally provided with the flange bottom 13a in proximity to the horizontal base 6, whereby the annular passage 14 forming an annular space by the rotary base 13, the flange bottom 13a and the fixed ring 5 is provided. It is formed.

In addition, an appropriate number of fixed wing pieces 15 are horizontally projected from the upper part of the fixed ring body 5 inwards, and the fixed wing pieces 15 have a stirring motion by a relative action with the stirring body 12 and the annular passage 14. It gives a scraping effect to the granular material filled inside. Furthermore, a partition plate 16 is provided horizontally above the cutaway portion 8 of the fixed ring body 5 so as to cover a part of the annular passage 14, and the fixed ring body 5 is externally cut off from powder particles through the cutaway portion 8. A gate 17 is provided to guide to. Then, a scraper 18 for scraping the powder particles is provided on the rotary disk 13 with respect to the lower surface of the partition plate 16 and the fixed ring body 5 of the annular passage 14.

Therefore, the fixed amount delivery apparatus of the powdery particulates constituted in this way supplies the powdery particulates for carrying out fixed quantity discharge to the upper vessel 1, the stirring blade 11 in the upper vessel 1 by the rotating shaft 10, When the stirring body 12 and the rotary disc 13 are simultaneously rotated in the lower vessel 3, the powder particles in the upper vessel 1 pass through the pressure regulation port 4 and continuously in the lower vessel 3 at a constant pressure. It is fed downstream. Then, in the lower container 3, the annular passage 14 is continuously filled while being uniformly dispersed by an appropriate number of fixed wing pieces 15 and the stirring members 12 fixed to the upper portion of the fixed ring body 5. Therefore, the powder and granular material in the annular passage 14 is rotated at a substantially constant speed on the flange bottom 13a of the rotating rotary disk 13, and the external surface from the cut portion 8 of the fixed ring 5 along the outer surface of the gate 17. And is designed to be able to precisely carry out the desired amount of continuous quantitative discharge.

In addition, conventionally, table feeders and disk feeders having various configurations have been proposed as powder and granular material supply devices for continuously and quantitatively supplying powder and granular materials using a rotary table or a disk.

For example, it is possible to reliably prevent the growth of adhesion of the powder to the storage wall without using a stirring blade, and also to be able to perform inspection and maintenance of the quantitative introduction and discharge means with good quantitative performance. A table feeder configured is proposed (see Patent Document 2).

The table feeder described in Patent Document 2 includes a reservoir of powder and a rotary table rotatably disposed in the reservoir, and the space between the outer peripheral portion of the rotary table and the bottom of the reservoir is provided. In the table feeder provided with a quantitative discharge means capable of introducing and quantitatively discharging the powder, the storage tank is positioned at a discharge interval for discharging the powder on the rotary table. The diameter of the table is defined to be larger than the diameter of the discharge opening.

That is, the table feeder configured in this way can reliably prevent the growth of the adhesion of the powder to the storage wall without using a stirring blade, and moreover, excellent quantitative performance is ensured, and further, Has an effect that inspection and maintenance of the quantitative introduction and discharge means can be easily performed.

In addition, the supplied powder and granular material descends uniformly without rotating around the central part, forms a repose angle in the circular powder passage, and is discharged, and is discharged at a constant speed and constant amount without being affected by the powder pressure. And the disk feeder comprised so that the first-in first-out of a supply granular material was performed is proposed (refer patent document 3).

In the disk feeder described in Patent Document 3, a horizontal rotary table is provided on a machine frame, an inner cylinder is provided on the table via a space, and an outer cylinder in contact with the upper surface of the table is provided on the outer periphery of the inner cylinder. A powder passage is formed between the tubes, a powder discharge scraper is provided outside the outer cylinder of the passage, and a powder guide conical cylinder concentric with the inner cylinder is fixed to the inside of the inner cylinder with a guide arm. The powder guide scraper in contact with the table is solidly provided at the lower part of the conical cylinder.

That is, in the disk feeder configured as described above, the powder supplied into the inner cylinder descends without rotating around the conical cylinder and forms an angle of repose from the interval of the lower end of the inner cylinder. Not only the powder that has advanced into the passage without being affected by the load (powder pressure) in the inner cylinder can be continuously supplied to the next process at a constant speed by the rotary table, and in the inner cylinder, first in, first out It has the effect of being carried out and providing a fixed supply without stagnation.

Furthermore, powder feeders for powder and granular material have been proposed as fixed quantity feeders that can stably discharge even powder or granular material that contains sticky powder or large lumps or that is easy to slip ( Patent Document 4).

In the disk feeder for powder and granular material described in Patent Document 4, a table is provided on a machine frame, an upright turning shaft is provided at the center of the table, and a horizontal turning table is provided at the upper end of the turning shaft. An upright cylinder is erected on the outer periphery of the table, an outer periphery of a doughnut-shaped horizontal disc is connected to the upper end of the upright cylinder, an inner cylinder is provided on the inner periphery of the horizontal disc, the lower end of the inner cylinder and the rotary table A material discharge interval is provided between the upper and lower surfaces, an outer cylinder is provided inside the upright cylinder, and the lower end of the outer cylinder is in sliding contact with the upper surface of the rotary table to form a granular material passage between the inner and outer cylinders. And a guide scraper in sliding contact with the upper surface of the rotary table and fixing both ends to the inner surface of the inner cylinder, a discharge port facing the passage, and a discharge scraper in the passage. .

That is, since the disk feeder for powder and granular material configured in this way does not have a fixed cone at the central portion of the guide scraper slidingly contacting on the horizontal rotary table, even powder and granular material containing sticky powder or large lumps Stable cutting is possible without causing a crosslinking phenomenon, and powder particles placed on the guide scraper can also be scraped out on the rotary table by the rotary blade provided on the guide scraper, and powder adhered to the inner surface of the outer cylinder Large lumps and the like caught on scrapers provided in the body or granular material passage are smoothly discharged without blocking the granular material passage by the projections provided on the rotary table, and a cone integral with the rotary table The projection is effective in that the guide scraper can be prevented from rising.

Japanese Patent Publication No. 52-043578 Japanese Patent Application Laid-Open No. 11-180564 Japanese Examined Patent Publication No. 07-090922 JP 2001-029774

In the conventional granular material supply apparatus disclosed in the patent document 1 described above, the granular material stored in the hopper formed as the upper vessel is quantified in the granular material feeder formed as the lower vessel. Adjustment to ensure smooth delivery of powder and granules in response to changes in the physical properties or characteristics of the powder or granules within the lower vessel, such as flowability, cohesion, and wear, It was considered difficult to sufficiently enhance the versatility as a powder and granular material supply device.

That is, in the various industrial fields today, since there are changes in the properties such as flowability, cohesion, and abrasivity of powder particles to be handled, powder particles having these various physical properties or characteristics changes For quantitative supply, it is necessary to supply powder with a versatility that can be smoothly and properly dealt with.

Further, in the conventional table feeders and disk feeders disclosed in the Patent Documents 2 to 4, the components conventionally proposed or provided for delivering the granular material are omitted or have a complicated configuration. It is intended to eliminate problems with the flowability, cohesion, and abrasion properties of the powder and particulate material to be handled, but adjustments should be made in response to changes in the physical properties and characteristics of the powder and particulate material to be handled. Since there is no means available to do so, it is not possible to supply powder with a versatility that enables smooth and appropriate delivery corresponding to various types of powder and granular materials to be handled. is there.

Therefore, as a result of intensive investigations and trial manufactures in order to solve the problems and problems in the conventional powder and granular material supply apparatus described above, the present inventors properly delivered the material according to the physical properties and characteristics of the powder and granules. In order to do this, the granular material supplied from the granular material hopper provided in the upper part of the feeder is sequentially swirled and transferred through the annular passage provided on the outer peripheral part on the rotationally driven supply board disk. While feeding the powder to the discharge port, the feeding plate is designed so that the powdery particles fed onto the rotationally driven feeding plate disc can form an angle of repose of the powdery particles adapted to the physical properties or properties thereof. By configuring the space area on the disc to be adjustable, it is possible to smooth and properly supply the powder and granules and to realize quantitative supply, and various physical property or property changes can be realized. Yes That the handling of the granular material and capable respectively, has successfully developed a powder or granular material feeding device with excellent versatility.

That is, in the granular material supply apparatus according to the present invention, a granular material receiving cylinder comprising an outer cylindrical body and an inner cylindrical body configured to be coupled to a hopper storing the granular material in the upper part; A lower part of the granular material receiving cylinder, and a cylindrical receiving body for receiving and arranging a powdery material supply disc disk connected to a vertical rotation shaft provided at the center of the granular material receiving cylinder and rotatably driven;
The feeding disc is coupled to the vertical rotation shaft through a feeding cup boss provided at the center thereof, and has a plurality of radially outwardly extending stirring blades and a conical upper part at the top thereof. Fix and fix the protruding center covers respectively
An outer peripheral step portion and a flange portion extending in a circumferential direction are provided on an outer peripheral portion of the supply plate disc, and an outer cylindrical body and a cylindrical shape of the powder and granular material receiving cylinder corresponding to the outer peripheral step portion. A receiver inner cylinder supported and fixed by the receiver body is provided to form an annular passage of powder particles surrounded by the outer peripheral step portion, the flange portion and the receiver inner cylinder,
A part of the cylindrical receiving body is cut away to provide an outlet for powder and particulate material in communication with the annular passage on a part of the outer periphery of the cylindrical receiving body, and the feeding disc and the stirring blade And fixedly arranging a partition plate including an induction piece of powder and powder and a covering portion covering an upper portion of the annular passage corresponding to the discharge port,
Furthermore, at the lower edge of the inner cylindrical body of the granular material receiving cylinder located above the supply disk, a pressure adjustment cylinder capable of setting a space area on the supply disk can be adjusted in the vertical direction. By this, it has been found that it is possible to obtain a granular material feeding device having the excellent versatility described above.

Therefore, an object of the present invention is to smoothly discharge the powdery material stored in the hopper to the discharge port through the annular passage provided on the outer peripheral portion of the supply disc while supplying the powder onto the rotationally driven supply disc. In the above configuration, the space area forming the repose angle of the powder to the annular passage on the supply disk can be set to be adjustable, and handling of the powder having various physical properties or property changes can be performed. An object of the present invention is to provide a powdery and granular material supply device with excellent versatility, which enables each.

In order to achieve the above object, the granular material supply apparatus according to claim 1 of the present invention is a granular material receiving apparatus comprising a double cylindrical body configured to be coupled with a hopper for storing granular material at the top. A cylinder, in which a cylinder, a lower part of which receives a delivery board disc for delivering powder material in a rotational direction, and a drive unit for rotationally driving the delivery board disc;
An annular shape of a granular material which is formed by means of an outer peripheral step portion and a flange portion extending in the circumferential direction on the outer peripheral portion of the supply board disc and a receiving inner cylinder provided on the cylindrical receiving body. Set up a passage,
At the lower inner surface of the inner surface of the double cylindrical body of the granular material receiving cylinder located above the feeding disk, a space area forming an angle of repose of the powder relative to the annular passage on the feeding disk. The pressure adjustment cylinder which can be set is provided so as to be adjustable in the vertical direction.

In the granular material feeder according to claim 2 of the present invention, the granular material receiving cylinder is constituted as a double cylindrical body consisting of an outer cylindrical body and an inner cylindrical body, the inner cylindrical body A pressure control cylinder capable of setting a space area forming an angle of repose of the powder material with respect to the annular passage on the supply disk disc is provided on the lower edge portion in an adjustable manner in the vertical direction.

In the granular material supply apparatus according to claim 3 of the present invention, the supply board disk is coupled to a vertical rotation shaft which is rotationally driven by a drive unit through a supply board boss provided at a central part thereof A plurality of radially outwardly extending stirring blades and a conically upwardly projecting center cover are respectively coupled and fixed at the upper portion, and further, a circumferentially extending outer peripheral step portion and a flange portion are provided at the outer peripheral portion thereof. And a receiving inner cylinder supported and fixed by the outer cylindrical body of the granular material receiving cylinder and the cylindrical receiving body corresponding to the outer peripheral step, and the outer peripheral step and the flange portion An annular passage of powder and granular material is formed so as to be surrounded by the above-mentioned inner cylinder of the receiving plate.

In the granular material supply apparatus according to claim 4 of the present invention, the cylindrical receiving body is a powdery particle in which a part of the cylindrical receiving body is cut off at a part of the outer periphery thereof and communicated with the annular passage. A partition plate provided with a body discharge port, and provided with a guiding member of powder and granular material and a covering portion covering an upper portion of the annular passage corresponding to the discharge port, between the supply disk and the stirring blade. It is characterized in that it is arranged in a fixed manner.

In the powder and granular material supply apparatus according to claim 5 of the present invention, a plurality of discharge ports of powder and particulate material provided on the cylindrical receiving body are provided at equal intervals in the circumferential direction, and correspond to the respective discharge ports. A covering portion covering an upper portion of the annular passage is provided on a part of the plate partition plate.

According to a sixth aspect of the present invention, there is provided a granular material supply apparatus comprising: a granular material receiving cylinder comprising an outer cylindrical body and an inner cylindrical body configured to be coupled to a hopper storing the granular material at an upper portion thereof; A cylindrical receiving plate for accommodating and disposing a supply disk disc of powder particles which is coupled to a vertically rotating shaft provided at a central portion of a lower portion of the powder particle receiving cylinder and rotatably driven;
The feeding disc is coupled to the vertical rotation shaft through a feeding cup boss provided at the center thereof, and has a plurality of radially outwardly extending stirring blades and a conical upper part at the top thereof. Fix and fix the protruding center covers respectively
An outer peripheral step portion and a flange portion extending in a circumferential direction are provided on an outer peripheral portion of the supply plate disc, and an outer cylindrical body and a cylindrical shape of the powder and granular material receiving cylinder corresponding to the outer peripheral step portion. A receiver inner cylinder supported and fixed by the receiver body is provided, and an annular passage of powder and granular material surrounded by the outer peripheral step portion and the flange portion and the receiver inner cylinder is provided.
A part of the cylindrical receiving body is cut away to provide an outlet for powder and particulate material in communication with the annular passage on a part of the outer periphery of the cylindrical receiving body, and the feeding disc and the stirring blade And fixedly arranging a partition plate including an induction piece of powder and powder and a covering portion covering an upper portion of the annular passage corresponding to the discharge port,
Further, at the lower edge of the inner cylindrical body of the granular material receiving cylinder located above the feeding disk, a space area is formed which forms a repose angle of the powder relative to the annular passage on the feeding disk. It is characterized in that the pressure regulating cylinder which can be adjusted can be adjusted in the vertical direction.

According to the particulate material feeder of claim 1 of the present invention, the pair of particulate particles fed onto the rotationally driven feeding disc form an angle of repose of the particulate against the annular passage on the feeding disc. Space can be adjusted to be adjustable so as to be suitable for the physical properties or properties of the granular material, so that the space can be smoothly discharged to the discharge port through the annular passage provided on the outer peripheral portion of the supply disk. Can be easily achieved. Therefore, it is possible to provide an extremely versatile apparatus capable of easily realizing quantitative discharge by smoothly and appropriately handling various types of powder and granules as this kind of powder and granules supply apparatus.

According to the powder and granular material supply apparatus according to claim 2 of the present invention, it is possible to facilitate coupling of various hoppers and the like storing the powder and granular material in the upper part.

According to the powder and granular material supply apparatus according to claim 3 of the present invention, the setting of the annular passage in the outer peripheral portion can be facilitated as a supply board disk for delivering the powder and grain material supplied from above, and the supply board It is possible to facilitate the setting of the space area that forms the repose angle of the granular material with respect to the annular passage on the disc, thereby enabling the handling of various granular materials, and the smooth and appropriateness of the granular material Quantitative discharge can be easily realized.

According to the powder and granular material supply apparatus according to the fourth and fifth aspects of the present invention, smooth and appropriate delivery of the powder and granular material can be easily performed together with setting of desired quantitative discharge when handling various powder and granular materials. Can be achieved.

According to the powder and granular material supply apparatus according to claim 6 of the present invention, as the powder and granular material supply apparatus having all the above-described features, it can be manufactured at low cost by a relatively simple assembly configuration and maintenance It is also easy and can provide an extremely simple powdery and granular material supply device which is easy to handle.

It is a principal part side view showing one example of the granular material supply device concerning the present invention. It is a principal part longitudinal cross-sectional view of the granular material supply apparatus shown in FIG. It is a perspective view of the granular material supply apparatus shown in FIG. It is the principal part perspective view which cut | disconnected the upper part of the granular material supply apparatus shown in FIG. 3 horizontally. It is the principal part perspective view which cut | disconnected the lower part of the granular material supply apparatus shown in FIG. 3 horizontally. Fig.6 (a) is the perspective view seen from the upper direction of the pressure regulation member used for the granular material supply apparatus shown in FIG. 5, FIG.6 (b) is the perspective view seen from the downward direction of the pressure regulation member. It is a perspective view of the partition plate used for the granular material supply apparatus shown in FIG. FIGS. 8 (a) to 8 (c) are explanatory views showing respective modified examples of the partition plate used in the powder and granular material supply device shown in FIG. It is a longitudinal cross-sectional view which shows the structure of the fixed quantity delivery apparatus of the granular material in the past. FIG. 10 is an XX cross-sectional view of the fixed amount delivery apparatus for powdery and granular materials shown in FIG. 9;

Next, an embodiment of the powder and granular material supply apparatus according to the present invention will be described in detail below with reference to the attached drawings.

FIGS. 1 to 7 show an embodiment of a granular material supply apparatus according to the present invention. In FIGS. 1 to 3, reference numeral 20 is formed into a double cylindrical body consisting of an outer cylindrical body 22 and an inner cylindrical body 24 configured to be coupled at the top to a hopper for storing granular material. The powder particle receiving cylinder is shown, and the reference numeral 26 indicates a powder particle feeding disc disk coupled to the vertical rotation shaft 32 rotationally driven by the drive unit 30 at the center of the lower portion of the powder particle receiving cylinder 20 The cylindrical-shaped receiving-plate body which stored and arranged 34 is shown. The cylindrical receiving plate 26 is formed of a receiving plate barrel plate 27 and a receiving plate fixed bottom plate 28, and the receiving plate disc 34 is accommodated and arranged, and the vertical of the cylindrical receiving plate body 26 is outside the bottom portion of the receiving plate fixed bottom plate 28. A drive unit 30 that rotationally drives the rotation shaft 32 is provided.

The feeding disc 34 is coupled to the vertical rotation shaft 32 through a feeding disc boss 35 provided at the center thereof, and has a plurality of radially outwardly extending stirring blades 48 and a cone at the top thereof. The center covers 50 projecting upward in the shape are fixedly coupled (see FIGS. 2, 3 and 4).

Further, an outer peripheral step portion 36 and a flange portion 37 extending in the circumferential direction are provided on the outer peripheral portion of the supply board disk 34, and the outer side of the powder and granular material receiving cylinder 20 corresponding to the outer peripheral step portion 36. A receiver inner cylinder 38 supported and fixed by the cylindrical body 22 and the cylindrical receiver 26 is provided, and powder particles surrounded by the outer circumferential step 36, the flange 37 and the receiver inner cylinder 38 are provided. Form an annular passage 40 of the body (see FIGS. 2 and 5).

A part of the cylindrical receiving body 26 is cut away to provide a discharge port 42 of powder and particulate material communicating with the annular passage 40 on a part of the outer periphery of the cylindrical receiving body 26 and the supply disc disk A partition plate 44 including a plurality of powder particles guiding pieces 45 and a covering portion 46 covering an upper portion of the annular passage 40 corresponding to the discharge port 42 is fixedly disposed between the blade 34 and the stirring blade 48 Do. In the meantime, the discharge port 42 is provided with a discharge scraper 52 of powdery particles as shown in the drawings so as to be directed to the inside of the annular passage 40 (see FIGS. 5 and 7).

Note that, as shown in FIGS. 8A, 8B, and 8C, a plurality of discharge ports 42 may be provided at equal intervals in the circumferential direction on the outer peripheral portion of the cylindrical receiving body 26. While covering the upper portion of the annular passage 40 to a part of the plate partition plate 44 so as to correspond to the respective discharge ports 42 in correspondence with the respective discharge ports 42. Can be provided respectively. By configuring in this manner, it becomes possible to select a plurality of powder and granular material supply destinations, and it becomes possible to select the powder and granular material supply capability and the setting of use or non-use for each individual outlet. One apparatus can enable application in a plurality of production lines.

In the granular material supply apparatus of the present embodiment having the above-described configuration, the lower side of the inner cylindrical body 24 of the granular material receiving cylinder 20 located above the supply board disk 34 is the supply board disk. A pressure adjustment cylinder 54 capable of setting a space region H for forming the repose angle θ ° of the powder material with respect to the annular passage 40 on 34 is provided so as to be adjustable in the vertical direction. That is, the pressure adjustment cylinder 54 is configured to be provided with the adjustment tool 56 that can be adjusted in the vertical direction as appropriate in the flange portion 55 formed on the outer periphery thereof, and to be suspended and supported on a part of the powder and granular material receiving cylinder 20 [Refer to FIG. 2, FIG. 4, FIG. 6 (a), (b)].

The powder and granular material supply apparatus according to the present invention in the above-described embodiment includes the center cover 50, the stirring blade 48, and the powder and granular material flowing down from the hopper (not shown) storing the powder and granular material arranged in the upper part of the apparatus. It is received on the rotatably driven feed board disc 34 via the guide piece 45 of the partition plate 44 and is guided to an annular passage 40 provided on the outer periphery of the feed board disc 34. In this case, a powder region is formed in the space region H formed between the supply plate disk 34 and the pressure regulation cylinder 54 provided at the lower edge of the inner cylindrical body 24 of the powder and granular material receiving cylinder 20 above it. By adjusting it to an optimal gap by adapting to physical properties or properties of the body, it is possible to smoothly supply and deliver the granular material to the annular passage 40.

That is, in the granular material supply apparatus according to the present embodiment, when the granular material which has flowed down onto the supply disk 34 is supplied and delivered to the annular passage 40 by its rotational drive, the supply of the upper portion of the annular passage 40 is performed. The level of the granular layer formed in the space area H on the disc 34 is kept constant by the interaction between the feed force of the feeding disc 34 to the granular and the repose angle θ ° of the particulates, With respect to the annular passage 40, the bulk density of the powder can be kept constant, and filling and feeding can be carried out continuously.

In the powder and granular material supply apparatus according to the present embodiment, the powder and granular material continuously filled and supplied in the annular passage 40 with a constant bulk density is formed in the upper portion of the discharge port 42 of the partition plate 44. By scraping the upper portion of the annular passage 40 at the portion 46, it is possible to continuously and precisely deliver the powder layer from the discharge port 42 as a powder / particle layer having an accurate rectangular cross section in which the bulk density is constant.

The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and many design changes can be made without departing from the spirit of the present invention.

20 granular material receiving cylinder 22 external cylindrical body 24 internal cylindrical body 26 cylindrical receiving body 27 receiving body shell 28 receiving base fixed bottom plate 30 drive portion 32 vertical rotation shaft 34 supply board disc 35 supply board boss portion 36 outer periphery Step part 37 Flange part 38 Receiving plate inner cylinder 40 Annular passage 42 Discharge port 44 Partition plate 45 Induction piece 46 Covered part 48 Agitation wing 50 Center cover 52 Discharge scraper 54 Pressure adjustment cylinder 55 Flange part 56 Adjustment tool θ ° Repose angle H Space region

Claims

A cylindrical shape that accommodates and arranges a granular material receiving cylinder consisting of a double cylindrical body configured to be coupled with a hopper that holds granular material in the upper part, and a supply board disk that discharges the granular material in the rotational direction in the lower part. And a driving unit that rotationally drives the supply disk.
An annular shape of a granular material which is formed by means of an outer peripheral step portion and a flange portion extending in the circumferential direction on the outer peripheral portion of the supply board disc and a receiving inner cylinder provided on the cylindrical receiving body. Set up a passage,
At the lower inner surface of the inner surface of the double cylindrical body of the granular material receiving cylinder located above the feeding disk, a space area forming an angle of repose of the powder relative to the annular passage on the feeding disk. What is claimed is: 1. A powder and granular material supply device comprising a pressure adjustment cylinder which can be set up and down in an adjustable manner.
The granular material receiving cylinder is configured as a double cylindrical body consisting of an outer cylindrical body and an inner cylindrical body, and at the lower edge of the inner cylindrical body to the annular passage on the supply disc. The powder and granular material supply apparatus according to claim 1, wherein a pressure control cylinder capable of setting a space area forming the repose angle of the powder and granular material is provided so as to be adjustable in the vertical direction.
The feeding disc is coupled to a vertical rotation shaft rotationally driven by a driving part through a feeding disc boss provided at the center thereof, and a plurality of radially outwardly extending stirring blades and a cone at an upper portion thereof The upper and lower center covers are respectively joined and fixed, and an outer peripheral step and a flange extending in the circumferential direction are provided at the outer peripheral portion thereof, and the powder and granular material receiving cylinder is provided correspondingly to the outer peripheral step. And an inner cylinder supported and fixed by the outer cylindrical body and the cylindrical receiving body, and the annular passage of the powder is surrounded by the outer peripheral step portion, the flange portion and the inner cylinder. The granular material supply apparatus according to claim 1 or 2, characterized in that:
The cylindrical receiving plate has a part of its outer periphery cut out of a part of the cylindrical receiving plate to provide a discharge port for powder particles communicating with the annular passage, and the feeding disc and the stirring blade 4. The method according to claim 1, further comprising the step of: fixedly arranging a partition plate having a guiding piece of powder and granular material and a covering portion covering an upper portion of the annular passage corresponding to the discharge port. The granular material supply apparatus as described in.
A plurality of discharge ports for powder and granular material provided in the cylindrical receiving plate body are provided at equal intervals in the circumferential direction, and an upper portion of the annular passage is formed in a part of the plate partition plate corresponding to the respective discharge ports. The powder and granular material supply device according to claim 4, characterized in that covering portions are provided respectively.
A granular material receiving cylinder comprising an outer cylindrical body and an inner cylindrical body configured to be coupled to a hopper for storing granular material in the upper part, and provided at the center of the granular material receiving cylinder at the lower part thereof And a cylindrical receiving body for receiving and arranging a powdery material supply board disk which is coupled to the vertical rotation shaft and rotationally driven,
The feeding disc is coupled to the vertical rotation shaft through a feeding cup boss provided at the center thereof, and has a plurality of radially outwardly extending stirring blades and a conical upper part at the top thereof. Fix and fix the protruding center covers respectively
An outer peripheral step portion and a flange portion extending in a circumferential direction are provided on an outer peripheral portion of the supply plate disc, and an outer cylindrical body and a cylindrical shape of the powder and granular material receiving cylinder corresponding to the outer peripheral step portion. A receiver inner cylinder supported and fixed by the receiver body is provided, and an annular passage of powder and granular material surrounded by the outer peripheral step portion and the flange portion and the receiver inner cylinder is provided.
A part of the cylindrical receiving body is cut away to provide an outlet for powder and particulate material in communication with the annular passage on a part of the outer periphery of the cylindrical receiving body, and the feeding disc and the stirring blade And fixedly arranging a partition plate including an induction piece of powder and powder and a covering portion covering an upper portion of the annular passage corresponding to the discharge port,
Further, at the lower edge of the inner cylindrical body of the granular material receiving cylinder located above the feeding disk, a space area is formed which forms a repose angle of the powder relative to the annular passage on the feeding disk. What is claimed is: 1. A powder and granular material supply apparatus comprising a pressure regulating cylinder which can be adjusted in the vertical direction.