JP3693897B2 - Powder and particle feeder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a powder and particle supply apparatus capable of supplying (transporting) various powders or particles in an air stream.
[0002]
[Prior art]
With regard to a powder supply apparatus for supplying powder and granules in an air stream, it can be found in the "dispersed particle supply apparatus" described in Japanese Utility Model Publication No. 52-96331, for example. In addition, the powder in the container is swung up by a high-speed air flow, and is discharged from the discharge port for transport, or “powder discharge apparatus” described in Japanese Utility Model Laid-Open No. 3-122023 As shown in the above, it is configured to transport the powder by sending pressurized air from the lower side in the container and discharging the powder from the upper discharge pipe. It is made up of two, and one outlet is opened and closed according to the amount of powder in the container, so that when the amount of powder is large, the powder is adjusted so that it is not discharged together, and the same concentration is always maintained. There are things devised so that it can be transported while
[0003]
[Problems to be solved by the invention]
However, in the “dispersed particle supply device” described in the former publication, since the container has only one injection port through which the high-speed air current is injected, only the particles in the injection port portion are dug. There was a problem that particles were ejected as such, and particles remained around them and could not be discharged uniformly.
[0004]
Further, the “powder discharge device” described in the above-mentioned latter publication lifts and discharges the powder discharged from the upper discharge pipe by sending pressurized air from the bottom of the container through the eye plate. Therefore, although it is possible to disperse the powder, there is a problem that the operation becomes very complicated because it is necessary to open and close the discharge port according to the amount of the powder with two discharge pipes. .
[0005]
Therefore, the technical problem of the present invention is that the powder or particles in the container can be swollen as a whole by a simple method as much as possible, and the powder or particles can be uniformly dispersed and supplied in the air. It is intended to provide a granular material supply device configured to be able to control the transport amount of the powder dispersed in the powder.
[0006]
[Means for Solving the Problems]
(1) In order to solve the above technical problem, according to the present invention, as described in the first aspect of the present invention, the powder or particles that have risen in the container are placed on an air current and discharged out of the container. The granular material supply apparatus is configured to have an inlet and an outlet for the air flow for transportation at the upper part of the container, respectively, and an air supply pipe with an air injection nozzle is supported in the container so as to be horizontally rotatable. Then, the compressed air sent from the compressed air supply source is injected from the air injection nozzle toward the inside of the container through the air supply pipe, and the container is rotated while the air supply pipe is horizontally rotated integrally with the air injection nozzle. The powder or particles contained in the container are soared up, and an inflow pipe and an exhaust pipe are connected to the inlet and outlet of the transport airflow provided in the upper part of the container, respectively. Either one of the discharge pipes or Both are configured to be provided with a valve for adjusting the air flow that can be manually or automatically adjusted from the outside .
[0007]
(2) Further, in the present invention, as described in the second aspect, the central portion of the air supply pipe can be horizontally rotated through a rotary air joint at the upper end portion of the compressed air introduction pipe erected in the container. In addition, the compressed air supplied from the compressed air supply source is jointed so as to be freely supplied to the air supply pipe, and a plurality of air injection nozzles are inclined in one direction toward the inside of the container in the air supply pipe. It is configured to be installed.
[0008]
(3) Further, in the present invention, as described in the third aspect of the present invention, a plurality of air injection nozzles are respectively provided from the center with respect to the air supply pipe that rotates horizontally with the center portion supported by the compressed air introduction pipe. It is configured to be installed at different positions.
[0009]
According to the means according to claim 1 described in the above (1), when compressed air is sent from the compressed air source to the air supply pipe and injected from the air injection nozzle, the propulsive force due to the injection of the compressed air is received. Since the air supply pipe rotates horizontally in the container integrally with the air injection nozzle, compressed air is uniformly injected throughout the container, and powder or granules (hereinafter simply referred to as powder granules) are obtained. It is possible to soar into a uniformly dispersed state, and by using a very simple method of injecting compressed air from an air injection nozzle, the uniformly dispersed powder particles remain in their dispersed state in the air flow for transportation. It is possible to discharge (feed) out of the container through the outlet.
[0010]
Furthermore, according to the means according to claim 1 described in (1) above, either or both of the inflow pipe and the discharge pipe connected to the inlet and outlet of the transport airflow provided in the upper part of the container are provided. It is possible to adjust the transport amount (transport concentration) of the uniformly dispersed powder as needed as needed by adjusting the air volume adjustment valve that is provided manually or automatically. .
[0011]
According to the means according to claim 2 described in the above (2), a plurality of air injection nozzles are inclinedly attached to the air supply pipe, and further, the air supply pipe introduces compressed air through a rotary air joint. Since it is attached to the upper end of the tube so that it can rotate horizontally, when compressed air is injected from the air injection nozzle, the air supply tube rotates due to the reaction of the injection force, and the entire inside of the container is rotated while rotating. On the other hand, the compressed air can be sprayed evenly, and the particles can be dispersed and raised, and the rotary air joint continuously feeds the compressed air into the horizontally rotating air supply pipe without interruption. The air supply pipe can continuously rotate horizontally at a constant speed while jetting compressed air.
[0012]
According to the means according to claim 3 described in the above (3), the mounting positions of the plurality of air injection nozzles, that is, the distances from the rotation center are changed, so that the plurality of air injection nozzles have different rotation trajectories. Therefore, the compressed air can be distributed evenly throughout the container.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a granular material supply apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 is a front view illustrating the configuration of the present invention, FIG. 2 is a partially sectional side view, and FIG. FIG. 4 is a partial cross-sectional rear view, and FIG. 4 shows a flat cross-sectional view. In these drawings, a reference numeral 1 indicates a container for containing the granular material FR in the interior 1H, 1K is a handle, 2 is an upper lid provided with viewing windows 2A, 2A, 3 is a movable wheel for movement, 3A is an attachment shaft, and the granular material FR is put into the container 1 after the upper lid 2 is removed. It has a structure.
[0014]
Reference numerals 4 and 5 denote an inlet and an outlet for a transport airflow provided on the upper portion of the container 1 with a left and right interval, and 4 ′ and 5 ′ denote an inlet pipe for an airflow connected to the inlet 4 and the outlet 5, respectively. In the discharge pipe, the airflow for transport is subjected to the suction action or blower action of a blower or the like (not shown) and enters the container 1 from the inlet pipe 4 ′ through the inlet 4, and then passes through the upper part in the container 1. The outlet 5 is discharged to the supply part through the discharge pipe 5 ', and an air volume adjusting valve 4T for adjusting the transport amount is provided inside the inflow pipe 4'.
[0015]
Further, in the figure, 6 is a compressed air introduction pipe standing upright in the center of the container 1, 6A is a lower end supply port for supplying compressed air, and 7 is a rotary air joint attached to the upper end portion 6B of the introduction pipe 6. , 8 are air supply pipes attached so that they can rotate horizontally while maintaining their communication with the upper end part 6B of the compressed air introduction pipe 6 through the rotary air joint 7 at the intermediate part thereof, 9A, Reference numerals 9B, 9C, and 9D denote air injection nozzles attached to the air supply pipe 8 in a communicating state.
[0016]
As shown in FIGS. 3 and 4, each of these air injection nozzles 9 </ b> A to 9 </ b> D is inclined downward with respect to the air supply pipe 8 and obliquely inclined in one direction (relative to the rotation direction). As shown in FIG. 4, the rotary air joint 7, that is, the compressed air introduction pipe 6, is used as a rotation center, and the distance from the rotation center is changed so that each shows a different rotation locus. Installed in position.
[0017]
Although the drawing shows a configuration in which the air volume adjusting valve 4T is mounted inside the inflow pipe 4 ', the air volume adjusting valve 4T is provided on the exhaust pipe 5' side, or You may attach to both discharge pipe | tubes 5 ', and the selection is arbitrary. Further, the air volume adjusting valve 4T is operated and adjusted from the outside either manually or automatically to adjust the transport amount to an arbitrary amount.
[0018]
Since the granular material supply device according to the present invention is configured as described above, the granular material FR is accommodated in the interior 1H of the container 1, and then the air flow generating device such as a blower is operated to enter the inlet 4 of the container 1. When the compressed air is sent from the compressed air supply source such as a compressor (not shown) through the lower end supply port 6A to the compressed air introduction pipe 6 while the airflow is circulated from the outlet 5 to the outlet 5, the supplied compressed air is Since the air jet nozzles 9 </ b> A to 9 </ b> D are vigorously injected into the container 1 through the rotary air joint 7 and the air supply pipe 8, the granular material FR in the container 1 can be raised.
[0019]
At this time, each of the air injection nozzles 9A to 9D is attached to the air supply pipe 8 while being inclined obliquely in one direction, and as shown in FIG. Since the air supply pipe 8 is horizontally rotated by the injection force of the compressed air, the compressed air is uniformly injected toward the interior 1H of the container 1 to thereby form powder particles. The body FR can be swung up in a uniformly dispersed state, and the powdered body FR thus swollen up is put on the transport airflow flowing in the upper layer in the container 1 as it is and is discharged from the outlet 5 to the discharge pipe 5 ′. And can be discharged out of the container 1.
[0020]
According to the present invention, it is possible to adjust the transport amount of the soared granular material FR to an arbitrary amount by manually or automatically adjusting the air volume adjusting valve 4T from the outside .
[0021]
【The invention's effect】
As described above, according to the granular material supply device according to the present invention, when the compressed air is injected from the air injection nozzle, each air injection nozzle rotates in the horizontal direction in the container due to the reaction of the injection, Promotes the soaking of the powder contained in the container, and can soak up the powder in a uniformly dispersed state. As a result, the air flow of a uniform concentration in which a certain amount of the powder is mixed Can be discharged in a stable state, and the amount of transport (transport concentration) can be adjusted by adjusting the air volume adjustment valve manually or automatically , as well as the air injection nozzle and air supply Since power for horizontally rotating the tube is not required, it can be used for transporting various types of granular materials, coupled with the fact that the entire device can be made relatively easily and at low cost. It is suitable for.
[Brief description of the drawings]
FIG. 1 is a front view illustrating a configuration of a granular material supply apparatus according to the present invention.
FIG. 2 is a partially sectional side view of the same.
FIG. 3 is a partially sectional rear view of the same.
FIG. 4 is a cross-sectional plan view illustrating an internal configuration.
[Explanation of symbols]
1 container 4 inlet 4 'inlet pipe
4T Air volume adjustment valve 5 Outlet 5 'Discharge pipe 6 Compressed air introduction pipe 7 Rotary air joint 8 Air supply pipe 9A, 9B, 9C, 9D Air injection nozzle FR Powder and granular material

Claims (3)

A powder or granule supply apparatus configured to discharge powder or granules soared in a container on an airflow and out of the container,
The upper side of the container is provided with an inlet and an outlet for the airflow for transportation, respectively , and an air supply pipe with an air injection nozzle is supported in the container so as to be horizontally rotatable and sent from a compressed air supply source. By injecting the compressed air through the air supply pipe from the air injection nozzle toward the inside of the container, the powder or particles accommodated in the container are caused to rise while the air supply pipe is horizontally rotated integrally with the air injection nozzle. In addition, an inflow pipe and a discharge pipe are connected to the inlet and the outlet of the airflow for transportation provided on the upper part of the container, respectively, and one or both of the inflow pipe and the discharge pipe are connected from the outside. An air volume adjusting valve configured to be adjustable in operation manually or automatically is provided .   The central portion of the air supply pipe is horizontally rotated through a rotary air joint at the upper end of a compressed air introduction pipe provided upright in the container, and compressed air sent from a compressed air supply source is air. 2. The granular material according to claim 1, wherein a joint is provided so as to be freely supplied to the supply pipe, and a plurality of air injection nozzles are attached to the air supply pipe so as to be inclined in one direction toward the inside of the container. Feeding device.   A plurality of air injection nozzles are attached to positions at different distances from the center, respectively, with respect to an air supply pipe that rotates horizontally with its central portion supported by the compressed air introduction pipe. 2. The granular material supply apparatus according to 2.

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