JPS6056719A - Conveying system for glanular material such as gravel, sand, etc. - Google Patents

Abstract

PURPOSE:To convey granular materials, by connecting the lower opening of a hopper through a shut-off valve to a pipe section which communicates the discharge port of a high-pressure blower with a discharge pipe. CONSTITUTION:When a shut-off valve 12 is closed, the air-pressure in a hopper 2 lowers so that high-pressure air stream is effected in a suction hose 7. By moving a suction port 13 along a sand layer 17 in a clean water reservoir 16 with the suction port 13 being made near to the surface of the sand layer 13, filtrated sand from the sand layer 17 is sucked under a high-pressure, through the suction port 13, the suction hose 7 and an upper opening 6, successively, and is then accumulated in the hopper 2. Since air having flown into a cyclone separator 18 from the discharge port 8 of a high-pressure blower 3 is vented to the outside of the system through a ventilator port 18, the filtrated sand accumulated in the hopper 2 successively drops into a pipe section 10 when the shut-off valve 12 is opened, and is then thrusted out by means of the above-mentioned air stream directed from the discharge port 8 to the cyclone separator 14, thereby the sand is discharged to the outside of the system through the lower opening 19 of the cyclone separator 14.

Description

[Detailed Description of the Invention] This invention utilizes high-pressure suction power by a high-pressure blower to
Concerning the conveyance device that transports granules such as sand and sand, its purpose is, for example, to carry out sand and hearth sand laid in the water purification pond to an oily tank for cleaning. It is an object of the present invention to provide a conveyance device that exhibits excellent mobility when used for work such as carrying out contaminated reactor materials from a low place to a high place within a limited base, such as during maintenance.

Generally, during periodic maintenance of a water purification pond, it is necessary to drain the furnace sand and hearth slag laid in the pond into -H oil, wash them, and reintroduce them back into the original pond. Become. Although a portable belt conveyor is usually used for the discharge, it is extremely complicated to move the belt conveyor after it has been installed in the pond while avoiding the installation piping. Furthermore, it takes a lot of effort and time to transport the contaminated furnace materials scooped up by the input to the belt conveyor, which is not desirable from the safety and hygiene standpoint of the workers.

The present invention has been made with the above-mentioned points in mind, and according to the conveying device of the present invention, a suction hose is connected to an upper opening of a closed hopper that is provided in communication with an intake port of a high-pressure blower. The lower opening of the hopper is connected to the pipe section leading from the exhaust port of the high-pressure blower to the discharge horn via an on-off valve, and this will be described in detail below together with the embodiment shown in the drawings.

In Fig. 1, a closed hopper 2 is loaded on a trolley 1.
C is a cyclone divider, which is connected to an intake port 4 of an electric high-pressure blower 3 placed adjacent to the cyclone divider using a communication pipe 5.

A flammable suction hose 7 is connected to the upper opening 6 of the hopper 2, and a pipe section 10 leading from the exhaust port 8 of the high-pressure blower 3 to a flexible discharge hose 9 is connected to the lower opening of the hopper 2. 11 are connected via an electric rotary on-off valve 12. Further, a suction port 13 is provided at the tip of the suction hose 7, and a cyclone separator 14 is connected to the tip of the discharge hose 9.

In addition, as the high pressure blower 3, for example, l0KW (1
5tn”7 minutes, I 000M111H9) Noah”
0 Wa type (one or more D types can be used.

In fact, the suction port 13 can be mounted on a small vehicle that can be remotely controlled. Reference numeral 15 indicates a soundproof layer made of hard rubber or the like provided on the inner surface of the hopper 2, 16 indicates a water purification pond in a dehydrated state, and 17 indicates a sand layer for filtration. The upper opening 6 of the hopper 2 is provided along the inner peripheral surface of the hopper 2, as shown in FIG.

In such a configuration, the on-off valve 12 is closed and a directional high-pressure air flow is generated. For this reason, the suction port 13 is connected to the water purification pond 1.
When the sand layer 17 in the hopper 6 is moved close to the surface of the sand layer 17 manually or by remote control, the quicksand in the sand layer 17 is sequentially suctioned at high pressure through the suction port 13, the suction hose puller 7, and the upper opening 6. It accumulates inside.

On the other hand, the air flowing into the cyclone separator 14 from the exhaust port 8 of the high-pressure blower 3 via the discharge hose 9 is separated into a cyclone! Since it exits the device through the +4 vent 18,
When the on-off valve I2 is opened in this state, the furnace sand accumulated in the hopper 2 sequentially falls into the pipe section 10, and this is caused by the mJ air flow from the exhaust gas 08 toward the cyclone separator 14. The cyclone separator 14 is pushed out through the lower opening 19 of the cyclone separator 14 and discharged to the outside of the apparatus. Furthermore, depending on the degree of opening of the on-off valve 12, not only can the speed at which quicksand is discharged out of the hopper 2 be adjusted, but also the operation of carrying it into the hopper 2 and the operation of carrying it out of the hopper 2 can be carried out at the same time. can.

Since the conveying device of the present invention is configured as described above, it is not only possible to convey quicksand, hearth debris, etc. in a closed space safely and hygienically, but also allows the main body of the device to be installed at a high place. It can be transported from a low place to a high place at high speed. In addition, not only can collection be carried out from a wide area simply by moving the tip of the suction hose, but the exhaust flow from the high-pressure blower can be used to sequentially transfer the load in the hopper, and the collection and
The loading and discharging operations can be switched at any time using on-off valves, which can dramatically improve conveyance efficiency.

Although the above has been described as an example of conveying furnace sand in a water purification pond, it goes without saying that the conveying device of the present invention can be widely applied to conveying granules other than sand and coconut.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conveying device embodying the present invention, and FIG. 2 is a cross-sectional view of a hopper of the same device. 2...Hopper, 3...High pressure blower, 7...
Suction hose, 9...Discharge hose, 12...
Open/close valve. Patent applicant Masaru Saito

Claims (1)

[Claims] A suction hose is connected to the upper opening of a closed hopper that communicates with the intake port of the high-pressure blower, while a lower opening of the hopper is connected to the pipe section that leads from the exhaust port of the high-pressure blower to the discharge hose. 1. A device for conveying granules such as sand or sand, characterized in that the device is connected via a valve.