JPH0630249Y2 - ▲ Ro ▼ Passing device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an apparatus capable of separating and removing particles in a liquid without using a super-auxiliary agent, and particularly to particles floating on the surface of the liquid. The present invention also relates to an excess device capable of surely removing even.

[Prior Art] Generally, there is often used an excess device for separating and removing particles in the dirty liquid by passing the dirty liquid through a cloth to collect a clean liquid.

In such a conventional apparatus, since the fine particles cannot be captured by the cloth itself, a super-auxiliary agent such as diatomaceous earth is laminated on the cloth. Then, by passing the dirty liquid through the super-auxiliary agent layer and the cloth, fine particles in the dirty liquid are separated and removed.

However, in the above-described conventional over-apparatus, in order to form the over-auxiliary agent layer on the cloth, it is necessary to prepare an over-auxiliary agent in advance, and to supply the over-auxiliary agent in a liquid state onto the cloth, There is a problem that the excessive work cost becomes high and the configuration becomes complicated.

In view of such a point, an opening is formed on the lower surface side of the liquid tank that stores the liquid to pass the liquid in the liquid tank, and the particles in the liquid are conveyed while covering the opening inside the liquid tank. There is already known an over-apparatus capable of separating and removing particles in a liquid by providing an endless cloth which passes through the filter and without using a super-auxiliary agent.

In this product, by running the cloth in the liquid while sucking the liquid in the liquid tank through the opening, the coarse particles in the liquid are first attached to the surface of the cloth, and the coarse particles attached to the cloth It is designed to adhere even fine particles in the liquid.

[Problems to be solved by the device]

By the way, in the liquid, there may be relatively small specific gravity of cutting chips, and such cutting chips are floating on the surface of the liquid. It has a problem that it cannot be removed properly.

The present invention has been made in view of the above points,
An object of the present invention is to provide an excess device capable of separating and removing particles in a liquid satisfactorily without using a super-auxiliary agent, and also capable of properly removing the cutting chips floating on the surface of the liquid. And

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the passing device according to the present invention forms an opening through which the liquid in the liquid tank passes on the lower surface side of the liquid tank for storing the liquid, and covers the opening inside the liquid tank. In a passing device provided with a cloth for passing the particles in the liquid conveyed, a scraping member for sending particles floating on the surface of the liquid above the liquid in the cloth direction after passing the liquid is provided. It is characterized by having done.

[Action]

According to the present invention having the above-described configuration, when the liquid in the liquid tank is sucked through the opening, the cloth just facing the opening has no coarse particles in the liquid attached to the surface thereof,
Only coarse particles over the mesh of the cloth can be captured, but while traveling facing the opening, the coarse particles in the liquid are successively captured on the surface of the cloth and a coarse particle layer of gradually thicker thickness is formed on the cloth. To be done. As a result, even fine particles can be gradually captured, and the liquid sucked from the entire opening can be made fairly clean on average. Further, since the scraping member sends the cutting powder floating on the surface of the liquid tank in the cloth direction and attaches it to the cloth, the cutting powder can be properly removed together with the particles attached due to the excess liquid. it can.

〔Example〕

 Hereinafter, the present invention will be described with reference to the embodiments shown in the drawings.

FIG. 1 shows an embodiment of an over-passage device according to the present invention, in which a liquid tank 1 has a pair of side walls 2 and 2 arranged upright.
And a pair of inclined bottom walls 3A and 3B form a rectangular plane shape and a triangular cross section. A rectangular opening 4 for passing the liquid in the liquid tank 1 is formed in the one inclined bottom wall 3B, and the outside of the opening 4 is formed on the lower surface side of the opening 4 of the inclined bottom wall 3B. A vacuum box 5 is attached for complete sealing.

A drive roller 8 which is rotationally driven by a drive motor 7 via a chain 6 is arranged outside the upper end of the inclined bottom wall 3B of the liquid tank 1, and outside the upper end of the other inclined bottom wall 3A. A driven roller 9 is arranged in the. Further, another roller 10 is arranged in the vicinity of the joining side of the inclined bottom walls 3A and 3B at the lower end in the liquid tank 1.
Two auxiliary rollers 1 are provided outside the liquid tank 1.
1, 11 are provided. Further, the drive roller 8, the driven roller 9, the roller 10 and the auxiliary roller 11,
An endless belt-shaped cloth 12 is wound around 11,
The cloth 12 is adapted to run in the direction of the arrow inside and outside the liquid tank 1 by the drive motor 7. The cloth 12 runs in the liquid tank 1 along the inclined bottom walls 3A and 3B so as to completely block the opening 4 formed in the inclined bottom wall 3B.

Further, as shown in FIG. 2, above the liquid tank 1, two scraping feeds formed in a flat plate shape from a flexible material such as rubber fixed at symmetrical positions in the outer diameter direction of the rotary shaft 13 are provided. Each of the scraping members 1 is provided with the members 14 and 14.
The tip of 4 is formed to have a length such that it can be joined to the cloth after passing through the inside of the liquid.

A driven sprocket 15 is fixed to one end of the rotary shaft 13. Further, a drive sprocket 17 rotationally driven by a scraping motor 16 is disposed above the driven sprocket 15, and a chain 18 is stretched between the drive sprocket 17 and the driven sprocket 15. ing. Then, by driving the scraping motor 16 to rotate the drive sprocket 17, the chain 18 and the driven sprocket 1 are rotated.
The rotary shaft 13 is rotatably driven via each of the rollers 5, and accordingly, the tip of the scraping member 14 is moved to the liquid tank 1.
Scraps 19 floating on the surface of the liquid tank 1 are scratched near the surface of the liquid inside and sent to the cloth 12 on the side of the inclined bottom wall 3B. The rotation speed of the scraping member 14 is set to be equal to or faster than the moving speed of the cloth 12.

A pressure roller 20 for pressing the particle layer S on the cloth 12 is in pressure contact with the upper portion of the drive roller 8, and the cloth 12 is sandwiched between the drive roller 8 and the lower portion of the drive roller 8. The hold roller 21 for preventing the slip of 12 is pressed. Further, a scraper 22 having a tip end abutting against the surface of the cloth 12 is disposed on the outer circumference of the cloth 12 between the pressure roller 20 and the hold roller 21, and is formed on the cloth 12. The scraped particle layer S is scraped off by the scraper 22.

Further, one end of the resupply pipe 23 is connected to the vacuum box 5 attached to the inclined bottom wall 3B,
A suction pump 24 for sucking the liquid in the vacuum box 5 is interposed in the resupply pipe 23, and the liquid sucked by the suction pump 24 is recycled to a device (not shown) through the resupply pipe 23. It is being supplied.

Next, the operation of this embodiment having the above-described configuration will be described.

The dirty liquid is supplied and stored in the liquid tank 1 from a supply pipe (not shown). In this situation,
The drive motor 7 is driven to move the cloth 12 to the inclined bottom wall 3A.
The cloth 12 is run in the direction of the arrow and the suction pump 24 is driven so that the cloth 12 passes through the opening 4 of the inclined bottom wall 3B after passing through the inside. Then, the suction pump 24 sucks the dirty liquid in the liquid tank 1 through the cloth 12 and into the resupply pipe 23 via the vacuum box 5.

When the dirty liquid in the liquid tank 1 passes through the cloth 12, first, the cloth 12 just facing the opening 4 is
Since the coarse particles in the dirty liquid have not adhered to the surface yet, capture only the coarse particles of the mesh of the cloth 12 or more,
A coarse particle layer is formed on the surface of the cloth 12. Therefore,
While the cloth 12 is running opposite the opening 4, the thickness of the coarse particle layer is gradually increased, and fine particles in the dirty liquid can be gradually captured. As a result, a particle layer S in which coarse particles and fine particles are mixed is formed on the cloth 12.

In this way, a considerable amount of particles can be captured by the time the cloth 12 passes through the opening 4, and the liquid sucked from the opening 4 to the resupply pipe 23 by the suction pump 24 depends on the suction position. Although the amount of particles passed is different, the liquid sucked from the entire opening 4 is on average fairly clean.

On the other hand, by driving the scraping motor 16 together with the driving of the driving motor 7, the rotary shaft 13 is rotatably driven via the driving sprocket 17, the chain 18 and the driven sprocket 15, respectively.
Rotate 4. As a result, the tip end of the scraping member 14 is immersed in the liquid in the liquid tank 1 and scratches the vicinity of the surface of the liquid, so that the chips 19 floating on the surface of the liquid tank 1 have the inclined bottom. It is sent toward the cloth 12 on the side of the wall 3B and attached to the cloth 12. At this time, as the liquid in the liquid tank 1 is sucked from the resupply pipe 23 by the suction pump 24, the liquid level in the liquid tank 1 lowers, and when the liquid level falls below a certain level, the suction pump 24 is stopped. However, since the scraping member 14 is made of a flexible material, the scraping member 14 can be bent along the cloth 12, and the surface of the liquid can be constantly scratched by following the decrease in the liquid level.

Then, the cutting chips 19 and the particle layer S on the cloth 12 are
The cloth 12 is conveyed to the outside of the liquid tank 1 as it travels, is pressed by the pressure roller 20, and then is scraped by the scraper 22.
Is scraped off the cloth 12.

Then, the cloth 12 at the portion where the particle layer S is peeled off passes below the liquid tank 1 and reaches the inside of the liquid tank 1 again, and the above-described steps are repeated. On the other hand, the clean liquid sucked into the resupply pipe 23 is supplied to a device (not shown) through the resupply pipe 23 and is reused.

As described above, in the present embodiment, the dirty liquid can be satisfactorily passed through without using a super-auxiliary agent to obtain a clean liquid. Further, since the scraping member 14 is configured to send the cutting powder 19 floating on the surface of the liquid tank 1 toward the cloth 12 and to adhere the cutting powder 19 to the cloth 12, the cutting powder 19 is properly handled together with the particle layer S. Can be removed.

It should be noted that the present invention is not limited to the above-described embodiments, and various modifications can be made as necessary.

[Effect of device]

As described above, since the passing device according to the present invention sucks the liquid in the liquid tank through the opening while conveying the cloth, it does not use the super-auxiliary agent and is fairly clean on average. The liquid can be obtained inexpensively and easily. In addition, the scraping member sends the cutting powder floating on the surface of the liquid tank in the cloth direction and attaches it to the cloth, so that the cutting powder can be properly removed together with the particles that are excessively attached. Become.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an embodiment of the over-apparatus according to the present invention, and FIG. 2 is a perspective view of a scraping member of the over-apparatus shown in FIG. 1 ... Liquid tank, 3A, 3B ... Inclined bottom wall, 4 ... Opening, 5 ...
Vacuum box, 7 ... drive motor, 12 ... cloth, 1
4 ... scraping member, 19 ... swarf, 22 ... scraper,
23 ... Resupply pipe, 24 ... Suction pump.

Claims (1)

[Scope of utility model registration request] 1. An opening for allowing the liquid in the liquid tank to pass through is formed on the lower surface side of the liquid tank for storing the liquid, and the particles contained in the liquid are transferred while covering the opening inside the liquid tank. In the passing device provided with a cloth, a scraping member is provided above the liquid for sending particles floating on the surface of the liquid in the cloth direction after passing the liquid.