JPS58148124A - Air transporter for powdered and granular body - Google Patents

Abstract

PURPOSE:To lower frictional resistance in case of flowing, and to miniaturize an air compressor by vibrating a transport pipe and floating powdered and granular bodies to a pipe wall in transport in a pipe of powdered and granular bodies by compressed air. CONSTITUTION:The transport pipes 4, 4a... are vibrated by vibrators 5, 5a... and a fixed quantity of powdered and granular bodies are supplied into the intake port of a nozzle 3 by a rotary feeder while compressed air is fed into the transport pipes 4, 4a from the compressor 7, and powdered and granular bodies are transported into a storage tank 10. Consequently, powdered and granular bodies in the pipes 4, 4a are separated from the pipe walls, and float at the central sections of the pipes 4, 4a. As a result, frictional resistance among powdered and granular bodies and the inner walls is decreased, and air pressure can be lowered. Accordingly, the compressor can be miniaturized.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pneumatic transporter for powder and granular materials, more specifically, an air transport pipe that communicates with a tank such as a tank containing powder and granular materials, and a pneumatic transport pipe that is connected to the transport pipe and that transports powder in the tank. The present invention relates to a pneumatic transportation machine for powder and granular material, which is comprised of an air compressor that transports granular material within a pipe.

Generally, the pneumatic transport pipe in this type of pneumatic transporter for powder and granular materials is fixedly supported by a tank such as a hook bar or an appropriate fixing member.

In the transport pipe having such a support structure, when granular material is transported within the pipe, frictional resistance occurs between the granular material and the inner wall of the transport pipe, and this frictional resistance reduces the kinetic energy of the granular material. Therefore, conventionally, in consideration of the friction loss, a large-capacity air compressor, for example, a large-capacity pressurized air compressor, is used. There was a problem in that the powder and granules had to be transported inside the pipes using high-pressure pumping.

The present invention was devised in view of the above-mentioned problems.The purpose of the present invention is to reduce the frictional resistance between the powder and the inner wall of the transport pipe, and to reduce the amount of air that has a small volume when transporting the powder or granule in the pipe. An object of the present invention is to provide a pneumatic transportation machine for powder and granular material that can smoothly transport powder and granular material within a pipe using a compressor.
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Therefore, the present invention is characterized in that a vibrating body is provided in the air transport pipe, and the vibration of the transport pipe caused by the vibrating body causes the powder and granules to be transported within the pipe to levitate with respect to the pipe tK. A.R〇Examples of the pneumatic transportation machine for powder and granular materials of the present invention will be described in detail below based on the drawings.

In the figure, (1) is a hopper for storing powder, and a nozzle (8) having a T-shaped intake port is provided at the bottom of the hopper (1) via a rotary feeder (2).

One end (8a) of this nozzle (8) K air transport pipe (4)
are connected to each other via a buffer joint (6), and the other end (8b)
A pressurized air compressor (7) for transporting the powder in the K hopper (1) within the pipe is connected via a buffer joint (8).

The transport pipe (1)K includes a plurality of transport pipes (4),
(41)... are connected to each other through buffer joints (6), (6a)..., and the transport pipe (-4
), (4a)...Vibrating bodies (6), (5a)... such as KFi vibrators are respectively fixed, and the vibrating bodies (
6), (5a)... said transport pipes (4), (4
The structure is such that the powder and granules transported within the pipe are floated against the pipe wall by the vibrations of a).

In the figure, (9) is an operating device that electrically operates the rotary feeder (2), compressor (7), and vibrating body (5), (5 heat), and (10) is This is a storage tank that receives and stores the powder and granular material discharged from the discharge ports of the transport pipes (4a) and (4b).

The present invention is constructed as described above, and when transporting powder or granular material within a pipe, at t/C#i, the operating device is operated to operate the vibrating bodies (5), (sa), etc. Transport pipe (4
), (4a)..., respectively, while supplying a fixed amount of powder to the intake port of the nozzle (8) by the rotary feeder, and conveying compressed air from the compressor (7) to the transport pipe (4). , (4 g)... to transport the powder into the storage tank (10) within the pipe.

During this intra-pipe transportation, the vibrating bodies (5), (5i)...K
Due to the vibration of the transport pipes (4), (4a), etc., the powder leaves the pipe wall and floats in the center of the transport pipes (4), (+a), etc. Powder and granules and transport pipe (4
), (4a)... because the frictional resistance with the inner walls of the particles is reduced, and the powder and granules can be smoothly pumped, thus allowing them to be transported within the pipe using low-pressure compressed air.

In addition, in the instant embodiment, the vibrating bodies (5), (5a)...
Transport pipes (4), (4m)...K are fixed, and the vibrations of each transport pipe (4), (4i)... are damped by couplings (6)...
9 is configured to absorb by the transport pipes (4), (4).
a)... may be elastically supported by a spring or the like to absorb vibrations, and furthermore, one of the vibrating bodies (5
), (5g) -... are fixed to a fixing member as appropriate, and the vibrating bodies (5), (6a)...K the transport pipes (4), (4a)
... may be supported to absorb vibrations.

(9) A vacuum pump may be used in place of the pressurized air compressor (7). In this case, the vacuum pump is connected to the discharge end of the transport pipe.

As described above, according to the present invention, a vibrating body is provided in the air transport pipe, and the vibration of the transport pipe by the vibrating body causes the granular material to be transported within the pipe to float against the pipe wall. It is possible to reduce the frictional resistance between the powder and the transport pipe when transporting the powder and granule in the pipe, and to transport the powder and granule smoothly in the pipe. Therefore, it is possible to transport the powder and granule in the pipe using a small air compressor with a small capacity. a1 It can be done in a refreshing manner.

[Brief explanation of the drawing]

The drawings are explanatory diagrams showing embodiments of the present invention. (1)...tank (hopper) (4), (4a), (4b), (4c), (4d), (
4e)... Air transport pipe (5)... Vibrating body (7)... Air compressor agent Patent attorney Tsu 1) Hisashi Nao

Claims (1)

[Claims] In a pneumatic transportation machine for powder and granular materials, which comprises an air transport pipe that communicates with a tank such as a hokuba that accommodates powder and granular materials, and an air compressor that is connected to the transport pipe and transports the powder and granular materials in the tank within the pipe. A vibrating body is provided in the transport pipe, and the vibration of the transport pipe by the vibrating body causes the powder and granules to be transported within the pipe to move through the pipe! ! A powder particle pneumatic transport device characterized by being made to levitate.