JPH06329255A - Carrying system for moisture-containing fluid and cyclone device - Google Patents

Abstract

PURPOSE:To provide no possibility of mixing fluid with harmful substances, do with a small installation area and give flexibility to layout for facilities, in a carry system for moisture-contg. fluid and a cyclone device therefor. CONSTITUTION:A carrying system for a moisture-contg. fluid is composed by having a cyclone device 11 with a bag filter 22 having water repellency, a blower device 12 for generating negative pressure in the cyclone device by exhausting air in the cyclone device through the bag filter, a compressed sir supply device 13 for back-washing the bag filter, and a hose connected to the inlet port of the cyclone device and having flexibility for transferring a fluid owing to the negative pressure from a supply port to the cyclone device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for transporting a fluid containing water and a cyclone device used for the system, which is used for transporting products or intermediate products in the manufacturing process of chemicals or foods.

[0002]

2. Description of the Related Art Generally, a fluid (or wet cake) containing water is often generated as an intermediate product in the process of manufacturing chemical products or food products.

Conventionally, a bucket conveyor, a belt conveyor, a screw conveyor, or the like has been used to convey such a fluid between each process in a factory.

[0004]

However, when the above-mentioned conveyor is used, the following problems occur. (1) While the fluid is conveyed through the factory by the conveyor, harmful substances such as iron powder, rust, oil, and dust may be mixed into the fluid due to wear of mechanical equipment. Therefore, especially when the fluid is a medicine or foodstuff, the yield of the product is considerably deteriorated due to quality and hygiene problems. (2) Since the screw conveyor and the like are originally moved in a plane, the installation area in the factory tends to be very large. In addition, since it is not easy to move the installed conveyor, it is difficult to lay out the equipment in the factory, resulting in poor flexibility.

In view of the above problems, the present invention provides iron powder, rust,
(EN) Provided are a transportation system and a cyclone device used therefor, in which there is no fear that harmful substances such as oil or dust will be mixed in a fluid, and the installation area is small, and the facility layout can be flexible. The purpose is to

[0006]

In order to solve the above-mentioned problems, a system according to the invention of claim 1 is a transport system for a fluid containing water, and a cyclone equipped with a bag filter having water repellency. Device, blower device for discharging air in the cyclone device through the bag filter to generate negative pressure in the cyclone device, and compressed air supply device for backwashing the bag filter in the cyclone device And a flexible hose that is connected to the suction port of the cyclone device and that transfers the fluid from the supply port to the cyclone device by negative pressure in the cyclone device. .

According to a second aspect of the present invention, there is provided a cyclone main body having an inner peripheral surface lined with a fluororesin, and a water-repellent bag filter attached downward from an upper portion of the cyclone main body. An air outlet for discharging the air in the cyclone body through the bag filter, a compressed air supply port for supplying compressed air for backwashing the bag filter in the cyclone body, and a peripheral surface of the cyclone body. And a table feeder attached to the lower part of the cyclone body.

[0008]

The fluid supplied to the supply port of the hose is transferred to the suction port of the cyclone device by the hose and enters the main body. The air and the fluid swirl in the body, the air passes through the bag filter and is discharged from the air outlet, the fluid falls downward, and a part of the fluid tries to adhere to the peripheral surface of the body or the bag filter. .

However, since the peripheral surface of the main body is lined with a fluororesin and the bag filter has water repellency, the adhesion of the fluid to these is suppressed to a minimum, and the bag filter is The fluid adhering to the filter drops downward by backwashing with a compressed air supply device.

The fluid dropped downward in the main body is scraped by the impeller of the table feeder, dropped from the discharge port, and sent to the next step.

[0011]

1 is a view showing a carrying system 1 according to the present invention, FIG. 2 is a sectional view showing a cyclone apparatus 11 used in the carrying system 1, and FIG. 3 is a plan view of a table feeder 31 used in the cyclone apparatus 11. Is.

In FIG. 1, a transfer system 1 includes a cyclone device 11, a blower device 12, and a compressed air supply device 1.
3, hose 14, supply line 15, screw conveyor 1
6 and a centrifuge 17.

First, as shown in FIG. 2, the cyclone device 11 includes a main body 21, a bag filter 22, and an air outlet 2.
3, a compressed air supply port 24, a suction port 25, a table feeder 26, and the like.

The main body 21 is composed of a cylindrical portion 21a made of a stainless steel plate and a conical portion 21b continuous therebelow, and Teflon (trade name) is attached to the inner peripheral surface thereof so that the fluid K does not adhere thereto. It is lined with fluororesin such as.

The bag filter 22 is composed of a filter cloth having water repellency, and four bag filters 22 are arranged in parallel to each other in a bag unit 22a attached to the upper part of the body 21. It is attached so that the vertical direction is from the upper part to the lower part. Since the bag filter 22 has water repellency, it has a characteristic that the fluid K containing water is unlikely to adhere to it, and even if it adheres, it can be easily removed. Such a bug filter 22
For example, "OLEO PHOVIC" manufactured by DCE, UK is used.

The air discharge port 23 is provided in the upper portion of the bag unit 22a, and the suction port of the blower device 12 is connected to the air discharge port 23 to discharge the air in the main body 21 through the bag filter 22.

The compressed air supply port 24 is connected to the bag unit 22.
It is provided at one end of a, to which the output of the compressed air supply device 13 is connected, and the bag filter 22 is backwashed. The backwashing of the bag filter 22 is performed at regular intervals (for example, a few tenths of a second) at regular intervals (for example, a fraction of a few).
It is performed by supplying compressed air from the compressed air supply device 13 only for about (seconds). As a result, the compressed air flows in the opposite direction to the bag filter 22 through the chamber in the bag unit 22a, and as a result, the fluid K adhering to the bag filter 22 separates or peels off and falls downward. The clogging of the bag filter 22 is prevented.

The suction port 25 is a cylindrical portion 21a of the main body 21.
Is attached so as to be tangential to the peripheral surface. Therefore, due to the negative pressure in the main body 21, the suction port 2
The fluid K and the air sucked from 5 swirl inside the main body 21, and since the fluid K has a large weight, it falls toward the peripheral surface due to centrifugal force. It is easily discharged from the discharge port 23.

The table feeder 26 is attached to the lower end of the conical portion 21b of the main body 21, and the conical portion 2
This is for collecting the fluid K that has fallen in 1b or slid down along the conical portion 21b into the discharge port 52 by the impeller 51 as shown in FIG. The impeller 51 is rotationally driven at a low speed by a gear motor 31 attached to the outside.

On the downstream side of the discharge port 52, a two-stage damper 32 having two upper and lower knife gates 53 and 54 that can freely move in and out in the horizontal direction is attached. The knife gates 53 and 54 are alternately opened so that at least one of them is always closed, so that the negative pressure in the main body 21 is not released and the fluid K is not back-flowed from the discharge port 52. The fluid K that has fallen is sequentially passed through and sent to the dryer 18.

An air knocker 27 is attached to the conical portion 21b of the main body 21 for vibrating the main body 21 to assist the fluid K adhering to the inner peripheral surface of the main body 21 and to drop the fluid K. There is.

Now, returning to FIG. 1, the blower device 12 is
The suction port is connected to the air discharge port 23, and the air in the cyclone device 11 is discharged through the bag filter 22 to generate a negative pressure in the main body 21.

The compressed air supply device 13 is, for example, 5-6K.
The compressed air of about g / cm ² is sent from the compressed air supply port 24 into the main body 21 to backwash the bag filter 22 as described above.

The hose 14 is a flexible one composed of a hard spiral wire made of vinyl chloride or the like and a soft tube. The hose 14 is connected to the suction port 25 of the cyclone device 11 and is provided inside the cyclone device 11. The fluid K is transferred from the supply port 28 to the cyclone device 11 by the negative pressure of. That is, the fluid K supplied to the supply port 28 is conveyed into the cyclone device 11 by the air flow from the air inlet 29 toward the suction port 25. If the hose 14 with a ground wire is used, generation of static electricity is effectively prevented and the fluid K can be transferred more smoothly.

The centrifuge 17 separates the water content of the fluid K charged therein, and reduces the water content to about 30%, for example. After that, the fluid K is supplied from the supply pipeline 15 to the supply port 28 of the hose 14 by the screw conveyor 16.

Therefore, the fluid (wet cake) K supplied to the supply port 28 is transferred to the suction port 25 by the hose 14 and enters the main body 21 of the cyclone device 11. The air and the fluid K swirl in the body 21, the air passes through the bag filter 22 and is discharged from the air discharge port 23, and the fluid K drops downward, and a part of the fluid K falls on the peripheral surface of the body 21 or the bag. Attach to the filter 22.

However, since the peripheral surface of the main body 21 is lined with a fluororesin, the bag filter 2
Since 2 has water repellency, the adherence of the fluid K to these is minimized, and the adhered fluid K moves downward due to backwashing by the compressed air supply device 13 and vibration of the air knocker 27. There is no hindrance to falling and continuous transportation.

The fluid K that has dropped downward in the main body 21 is
It is scraped by the impeller 51 of the table feeder 26, falls from the discharge port 52, and is sent to the dryer 18, which is the next step, via the damper 32.

According to the transport system 1 of the above embodiment,
Since the fluid K is transferred by the hose 14, it is shielded from the external environment and there is no risk of harmful substances being mixed in during transportation. Further, since the hose 14 is flexible and lightweight, it can be installed in a small installation area and at low cost, and it can be installed not only on the floor but also inside or outside the factory such as a ceiling or a wall surface. The layout of the equipment in the factory is extremely easy, and high flexibility can be provided.

The discharge port 5 from the cyclone device 11
Since the two-stage damper 32 is used for 2, the fluid K
Can be completely discharged without backflow.
In the above-described embodiment, the damper 32 having the valve vanes that rotate about the axis may be used. In addition, the configuration, structure, shape, size, material, number and the like of the entire cyclone device 11 and the transport system 1 or each part can be variously changed in accordance with the gist of the present invention.

[0031]

According to the invention of claim 1, iron powder, rust,
It is possible to provide a transfer system that is free from the possibility that harmful substances such as oil or dust will be mixed in the fluid, has a small installation area, and has flexibility in the layout of equipment.

According to the second aspect of the present invention, it is possible to provide a cyclone device which is optimum for such a transfer system.

[Brief description of drawings]

FIG. 1 is a diagram showing a transfer system according to the present invention.

FIG. 2 is a cross-sectional view showing a cyclone device used in a transfer system.

FIG. 3 is a plan view of a table feeder used in the cyclone device.

[Explanation of symbols]

 1 Transport System 11 Cyclone Device 12 Blower Device 13 Compressed Air Supply Device 14 Hose 21 Main Body 22 Bag Filter 23 Air Discharge Port 24 Compressed Air Supply Port 25 Intake Port 26 Table Feeder

Claims (2)

[Claims] 1. A transportation system for a fluid containing water, comprising: a cyclone device having a water-repellent bag filter; and air in the cyclone device exhausted through the bag filter into the cyclone device. A blower device for generating a negative pressure, a compressed air supply device for backwashing a bag filter in the cyclone device, and a suction port of the cyclone device, which is connected to an inlet of the cyclone device to cause the flow by the negative pressure in the cyclone device. A transport system for a fluid containing water, comprising a flexible hose for transporting a body from a supply port to the cyclone device. 2. A cyclone device used in a system for conveying a fluid containing water, comprising: a cyclone main body having an inner peripheral surface lined with a fluororesin; and a cyclone main body attached downward from an upper portion of the cyclone main body. A water-repellent bag filter, an air outlet for discharging air in the cyclone body through the bag filter, and compressed air for supplying compressed air for backwashing the bag filter in the cyclone body A cyclone device comprising: a supply port, an intake port attached to a peripheral surface of the cyclone body, and a table feeder attached to a lower portion of the cyclone body.