JPH0733251A - Powder/grain material force-feeding device - Google Patents

Abstract

PURPOSE:To smoothly drop a powder/grain material into a conveying tube and to convey the powder/grain material inside the conveying tube without any damage. CONSTITUTION:A powder/grain material force-feeding device consists of a powder/grain material storage hopper 2, whose upper and lower parts are opened, a lid body 4 sealing the upper throw-in port 3 of the powder/grain material storage hopper 2, a conveying tube 7 connected to the lower opening 5 of the powder/grain material storage hopper 2 via a flow rate regulating device 6, and a blower 8, which is connected to one end of the conveying tube 7 and force-feeds the powder/grain material to be dropped into the conveying tube 7 from the powder/grain material storage hopper 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder and granular material feeder suitable for carrying fertilizers and grains, especially granular feed.

[0002]

2. Description of the Related Art Conventionally, when a powdered material such as fertilizer, grains or chemicals filled in a storage tank or a hopper is to be transported to a predetermined location as needed, a pipe from the hopper or the like to a predetermined location is used. A suction device is connected to the pipe, and the suction force of the suction device conveys the powder or granular material filled in the hopper or the like.

[0003]

However, when the powder or granular material is conveyed by suction by the suction device as in the above-mentioned conventional method, there is no problem in conveying the powder, but in the case of granular material such as bait (granular material). Had a problem that the particles were crushed and damaged.

The present invention was developed in order to solve the above problems, and the object of the present invention is to allow powder particles to drop smoothly into a conveying pipe and to damage the particulate matter in the conveying pipe. An object of the present invention is to provide a powdery or granular material pressure-feeding device that can be transported without being conveyed.

[0005]

Therefore, the present invention has the following structure in order to achieve the above object. That is, a powder and granular material storage hopper having an opening at the top and bottom, a lid for sealing the upper input port of the hopper, a transfer pipe connected to the lower opening of the hopper via a flow rate adjusting device, and the transfer pipe. And a blower which is connected to one end of the hopper and pressure-feeds the powder or granular material falling from the hopper into the transport pipe.

[0006]

With the above-mentioned structure, the granular material is charged into the hopper from the upper charging port and filled, and the upper charging port of the hopper is closed by the lid. Then, the blower is driven to blow the air to the conveying pipe, and the opening degree of the flow rate adjusting device is adjusted to adjust the amount of powder or granular material falling from the hopper into the conveying pipe in advance or appropriately during conveyance. The powdery fluid filled in the hopper spontaneously drops from the inside of the hopper into the transfer pipe when the internal pressures in the hopper and the transfer pipe become uniform due to the driving of the blower. The powder particles that have fallen into the transport pipe are transported by pressure in the transport pipe by the wind from the blower.

Since the upper charging port of the hopper is closed by the lid, the powder or granular material filled in the hopper does not spout from the upper charging port to the outside. Then, when the internal pressures in the hopper and the transfer tube become uniform as described above due to the effect of the blower to blow air to the transfer tube, the powder and granules drop by natural fall. Therefore,
The granular material smoothly falls into the carrier pipe from the hopper without causing a falling defect, and in the case of granular material such as bait, it can be pressure-fed without being damaged.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure, reference numeral 1 is a powdery or granular material conveying device according to an embodiment of the present invention. This device 1 has a powdery and granular material storage hopper 2 having upper and lower openings and an upper charging port 3 of the hopper 2. A lid 4 that seals the container, a transfer pipe 7 that is connected to a lower opening 5 of the hopper 2 via a flow rate adjusting device 6, and a transfer pipe 7 from the hopper 2.
And a blower 8 for pressure-feeding the powder particles. The blower 8 and one end of the transfer pipe 7 are connected via a damper 9 for controlling the air volume. In addition, the carrier pipe 7
The other end of is connected to the granular material storage tank 10. The distance from the hopper 2 to the granular material storage tank 10 is determined by the blower 8
Depending on the ability, it is possible to use 100m to 200m or more. As the flow rate adjusting device 6, a device such as a flow rate adjusting on-off valve or a damper that can control the amount of powder or granular material falling from the powder or granular material storage hopper 2 is used.

The outer peripheral edge inner surface portion 4a of the lid 4 is formed so as to be in close contact with the upper outer peripheral edge upper surface 2a of the hopper 2 having the upper charging port 3 opened. This lid 4 is the hopper 2
And the upper peripheral edge inner surface portion 4a of the lid body 4 is fitted to the upper outer peripheral edge upper surface 2a of the hopper 2, and
The lid 4 is fixed to the hopper 2 with a plurality of bolts 11 and the like. As a result, the upper charging port 3 of the hopper 2 is sealed by the lid 4.

With the above-mentioned structure, the granular material is charged into the hopper 2 through the upper charging port 3 and filled, and the hopper 2 is charged.
The upper charging port 3 is closed with a lid 4. Then, the blower 8 is driven to send the wind to the carrier pipe 7, and the opening degree of the flow rate adjusting device 6 provided at the lower portion of the hopper 2 is adjusted to drop the powder or granules falling from the hopper 2 into the carrier pipe 7. Adjust the amount. When the internal pressures in the hopper 2 and the transfer pipe 7 become uniform as the blower 8 is driven, the powder fluid naturally drops from the hopper 2 into the transfer pipe 7. The powder or granules thus dropped from the hopper 2 into the transfer pipe 7 through the flow rate adjusting device 6 are pressure-fed to the powder or granular material storage tank 10 by the wind pressure of the blower 8 and are conveyed.

Further, since the upper charging port 3 of the hopper 2 is closed by the lid 4 as described above, the granular material smoothly falls naturally from the hopper 2 into the conveying pipe 7 without causing a falling defect. To do. Especially in the case of granular material such as bait, it is pumped without being damaged.

[0012]

As is apparent from the above description, the powdery-particles feeding device of the present invention pressure-feeds the powdery particles falling from the hopper into the transfer tube by the air pressure of the blower, and the powdery particles are moved to the predetermined position. Since it is transported to a location, it is possible to transport the powder or granular material, especially the granular material without being damaged during the transportation. Further, since the hopper is hermetically closed by the lid, when the air blower is driven to blow air into the transfer tube, the powder or granules packed in the hopper can be smoothly dropped from the hopper into the transfer tube.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment according to the present invention.

[Explanation of symbols]

 1 powder and granular material conveying device 2 powder and granular material storage hopper 3 upper input port 4 lid 5 lower opening 6 flow rate adjusting device 7 transfer pipe 8 blower

Claims (1)

[Claims] 1. A powder and granular material storage hopper having upper and lower openings, a lid for sealing an upper charging port of the hopper, and a transfer pipe connected to the lower opening of the hopper via a flow rate adjusting device. A powder and granular material pressure-feeding device, comprising: a blower connected to one end of the transfer tube to pressure-feed the powdery or granular material falling from the hopper into the transfer tube.