JPS62163720A - Solid-liquid separator - Google Patents

Abstract

PURPOSE:To continuously perform solid-liquid separation by providing a rotating brush removing solid content which can not be scraped away by a scraping means and removing the above-mentioned solid content by this brush and regenerating filter capacity of a filter medium. CONSTITUTION:When raw liquid 20 is fed through a discharge port 18 for raw liquid on the surface of a cylindrical filter medium 1, cake 21 is deposited on the surface of the cylindrical filter medium 1. Liquid content sucked to the inside of the cylindrical filter medium 1 is discharged to a vessel of the outside and cake 21 deposited on the cylindrical filter medium 1 is scraped to the vessel by a scraper 6 and thereby solid-liquid separation is performed. Also raw liquid 20 incorporated in a raw liquid tank 7 is subjected to suction and separation and the layer of cake 21 which can not be removed by a scraper 6 and slightly remains is scraped down by the rotation of a rotating brush 17 provided to an under part and removed.

Description

Detailed Description of the Invention (Technical Field of the Invention) This 5c 1.11 relates to an apparatus for separating a solid-liquid mixed fluid containing insoluble impurities into a solid content and a liquid content, and particularly relates to a device for separating a solid-liquid mixed fluid containing insoluble impurities into a solid content and a liquid content, and in particular, A rotating brush is provided to remove solids that cannot be scraped off at the r' stage, and this rotating brush removes the solids mentioned above to increase the filtering ability of the filter medium, thereby achieving solid-liquid separation. Solid-liquid separation that can be carried out continuously:! I 'A +1'? Regarding.

(Technical background of the invention and its problems) Scraping machine, ωElF? Chilled out from machine 9! /J Oil cutting waste fluid, polishing waste fluid, etc. have a relatively high ζ degree of Z-soluble impurities, and often contain many particles with a particle size of !11. For this reason, conventional and general devices cannot be applied, and various solid-liquid separation devices are used, but since the entire device is complex and large-scale, it is necessary to prepare for each machine or each series. It was common for an entire factory to have one unit, rather than one for each unit.

The equipment used for each machine or line was a centrifugal separator, a separator using magnetic force, or a combination of these and a conventional filtration machine. It had low performance and high running costs, etc. Particularly, expensive 9J cutting oil, polishing fluid, etc. are collected and reused [which takes an extremely long time of 41 minutes, and requires further precision filtration in order to be reused]. It was something.

Therefore, the present applicant has proposed a solid-liquid separator (Japanese Patent Application No. 103502) which has a structure that eliminates the above-mentioned drawbacks. FIG. 3 is a perspective view showing an outline of a conventional solid-liquid separator, and FIG. 4 is a diagram showing a cross-sectional structure of 9 parts of solid-liquid molecules of the L-arranged liquid separator 21 (Japanese Patent Application No. BO-103502). It is. Hereinafter, the solid-liquid separation method in the solid-liquid separation device will be described with reference to FIGS. 3 and 4.

This solid-liquid separator (Japanese Patent Application No. 60-103502) is a conventional solid-liquid separator as shown in FIG. In Fig. 3, l is a cylindrical straight member with II'lF￥0.1~2QOg on its outer circumferential surface.
It is a porous body with 41 continuous pores that break out from the pores (which become pores).

For example, lJ! linearly from the outer layer to the inner layer! A honeycomb-like structure having a black number of successive pores or a three-dimensional network structure in which the pores are arranged irregularly in the number jK&2 are used. Also, what is the material?

Thermosetting of porous ceramics, sintered metal porous bodies, metal wire mesh laminates, sintered resin porous bodies, hard resin porous bodies, or fiber porous bodies laminated with fζ weave 7p or threads. It may be treated with a resin and hardened. The axial end face of the cylindrical straight member 1 is sealed with disk-shaped side plates 5A and 5B, and the hollow rotating shaft 4 is inserted through the center hole thereof. Straight lumber
Since it has continuous pores and is made of a hydrophilic material, the liquid components in the stock solution smoothly permeate inside due to capillary action. As a result, the filtration resistance becomes small, and the liquid component in the stock solution can be easily sucked into the cylindrical chamber of the cylindrical straight material 1 without reducing the internal pressure of the cylindrical straight material 1 that much.

In addition, the I'HF-shaped member 1 is connected to the main body via a rotating shaft 2 at the other end, and a pulley 1 is attached to the middle of the hollow rotating shaft 4.
1 is sunk, a heald 12 is wound between the drive/steel ring 9 of the reduction gear mechanism 10, and a motor 13 is connected to the reduction gear groove lO to move the cylindrical corrugated material 1 in the direction of the arrow. It is rotating slowly in the A direction. The cylindrical straight material 1 is installed so that approximately half of its F is buried in the stock solution tank 7 that receives the surplus stock solution 20, and a cutting machine or a polishing machine is applied to the surface of the m-shaped material 1. etc. LIl: The crude oil drain 1"1 (not shown) connected to the oil pipe is connected to the turning surface 1 of the long pipe.
1. During cleaning of the filter medium via air cylinder (not shown), the disease-wielding swing 3 attached to the The light end of the brush 3 is placed in contact with the surface of the cylindrical filter medium 1 by 11 mm, and is spaced apart from the surface of the cylindrical image material 1 by a predetermined dose line during draining of the undiluted solution. Here, the fourth
As shown in the figure, during the filtration work, the undiluted solution 20 discharged from the undiluted solution drain 11 of the exhaust brush 3 is scattered 45 on the cylindrical straight material 1, and the undiluted solution 20 that is not sucked is left as the undiluted solution. Tank 7
It is designed to be received within the country. On the opposite side of the cylindrical filter material l, there is a scraper 6 as a scraping means for scraping off the cake 21 formed on the surface of the cylindrical filter material l. is provided so as to be in pressure contact with the surface of the cylindrical shaped material 1, and to be separated from the cylindrical straight material 1 during cleaning of the diseased material.

A container 15 for receiving the scraped cake 21 is installed at the F force of the scraper 6. In addition, the center knee rotation axis 4
A suction pump 14 such as a liquid pump with high self-priming capacity, a 1° 1: empty pump or an ejector is connected to the end of the pipe 8, and the liquid sucked from the cylindrical chamber of the cylindrical straight material l is connected to the end of the pipe 8. It is designed to be stored in a container that does not indicate the ingredients.

A vacuum valve 16 is attached to the end of the hollow rotary shaft 4, and when cleaning the cylindrical material 1, the vacuum inside the cylindrical filter material 1 is released and suction of the stock solution 20 is stopped. , b'J type components can be easily removed.

An outline of the t-filtration and member cleaning in a solid-liquid separator with such a configuration is as follows.
is discharged and sprinkled on the upper surface of the cylindrical filter medium 1. The inside of the cylindrical corrugated material 1 is maintained in a reduced pressure state by the suction pump 14 via the pipe 8 and the hollow rotating shaft 4, and the cylindrical corrugated material 1 is smoothly rotated in the direction of the arrow.
Due to the suction action, only the liquid part of the stock solution 20 sprinkled on the surface of A1 passes through the cylindrical corrugated material l and is discharged from the pipe 8 through the hollow rotating shaft 4, while the solid content remains on the surface +f+i and is stable. Form 1 layer of cake 21. cake 21
layer is scraped and removed by the scraper 6, and at the same time the surface of the cylindrical corrugated material I is renewed in this area. and,
If the stock solution 20 is present in the stock solution tank 7, it is sucked by the same action.

A separation takes place. Note that an automatic valve (not shown) may be provided at the bottom of the stock solution tank 7 to return the excess stock solution 20 to its original state.

However, in this case, the cake 2I stacked on the surface [-] of the cylindrical corrugated material l cannot be completely removed by just applying pressure with the scraper 6 as described in , and the contaminants in the stock solution 20 are not evenly distributed. When the diameter is less than Igm F, a slight layer of cake 21 is left behind on the surface -1- of the cylindrical corrugated material 1, and this layer grows as the operation continues for a long time. The filtration process J'IP capacity of the separation device is reduced. At this point, the sapping operation of the liquid separating device is interrupted, and the cleaning operation of the cylindrical corrugated material 1 is started. Hit it first (liquid 20
The suction pump 14 is stopped, and at the same time, the suction pump 14 is stopped, and at the same time, the suction pump 14 is stopped, and the empty valve 16 are interlocked and opened to the atmosphere, thereby eliminating the pressure difference between the inside and outside of the cylindrical corrugated material l.

Therefore, the scraper 6 is moved back in the direction E in the figure by the air cylinder 82, and its tip is scraped away from the cylindrical α phase l. Then, the brush 3 shown in (1) is advanced in the directions J and B in the figure by the air cylinder (1), and the brush 3 shown in (1) is brought into contact with the surface of the cylindrical filter medium l. 1- Even during the operation described above, 1. The cylindrical material 1 continues to rotate in the direction shown in the figure by the means described in 1, and when the brush 1-1 comes into contact with the surface of the circle 1.1 shaped material 1, it is removed by the soufflé Ipa 6. The unfinished cake layer is cleaned, and the remaining cake layer is cleaned for a predetermined period of time.
'; Sweeping work is tributary, and the filter media l! Over-processed mahriki is born. At this point, the L vacuum valve 1B is closed, and I-
At the same time as the suction pump 14 is operated in conjunction, 1-
The disease material cleaning brush 3 is moved by an air cylinder as shown in C.
When fully retracted in the direction and removed from the sapwood surface) (to, L
The scraper 6 is advanced in the direction shown by the air cylinder 62.

Circle 1. ) Pressure-contact the surface of the shaped straight material 1, and apply the undiluted solution 2.
0 to tl (supply 1-recording operation 1■l).

Togoroga, 1. In the solid-liquid separator mentioned above, the solid-liquid shoplifting operation is stopped during the blue-green work.
Since s, t *< separation or i+ cannot occur fertilely, there is a limit to its processing ability. Further, as described above, members with complicated configurations are used for this cleaning work, which requires complicated operations and control devices, resulting in an increase in cost.

(Purpose of N 1N+) This invention was made based on the “1. It is an object of the present invention to provide an inexpensive 1-4 liquid separation processing apparatus that increases processing capacity H and + by regenerating parts and components.

(Summary of the Invention L") This invention consists of a circle t, which is made of a porous body with continuous pores, and a string material in the shape of
(1) A side plate for sealing the 1114 end of the L symptomatic material, 1- a depressurizing means for maintaining the space formed by the sap material and F- side plate in a reduced pressure state iE:, and 1- a contaminant on the surface of the symptomatic material. A means of dispersing a solid-liquid mixture containing a substance (1j and l-deduction/lE r
Due to the pressure difference between the stages, only the liquid component of the one-liquid mixed fluid is absorbed into the seed material, thereby reducing the solid content deposited in a layer on the surface of the filter material (1). A solid-liquid fraction gl' is provided with a scraping stage F to scrape along the side surface of the
! In the apparatus, a rotating brush is provided which rotates while being pressed against the surface of the diseased material marked 1, and the number 1 is set by rotation of the rotating brush marked L.
By removing the cedar particles placed on the surface F of the L2 filter medium that were not removed by the single-stage scraping knife described above, +Q of surface blood of the patient F was produced.

(Embodiment of Issue 1!11) The solid-liquid separator of the present invention uses rotating brushes to submerge and clean the cylindrical filter medium instead of intermittent cleaning of the cylindrical filter medium by pressing butene as described above. By constantly rotating this rotating brush so that it is in contact with the cylindrical filter medium and removing solids that could not be removed by the scraper, the surface of the filter medium can be constantly cleaned.

Below, we will explain the theory 111+ about this i'Fm.

FIG. 1 is a diagram showing a cross-sectional structure of a solid-liquid separating section of a solid-liquid separator according to an embodiment of the present invention, and FIG.
This will be explained by looking at the YY' cross-sectional view of FIG.

This invention is a solid-liquid separator described in Fig. 3, in which rotating brushes can be moved. It is connected to a suction pump (not shown) by a rotating shaft 4 and a rotating support shaft 2, and is configured to rotate in the direction A in the drawing. The stock solution 20 is prepared using cylindrical filter medium 1. The raw solution is supplied to the surface of the cylindrical filter medium 1 from the drain port 18 provided in the section, and the surface of the cylindrical filter medium 1 is supplied to the side of the cylindrical filter medium 1 on the opposite side of the drain 118 as described above. Cake 2 deposited on
A scraper 6 for scraping the cylindrical filter medium 1 is provided so as to be in pressure contact with the surface of the cylindrical filter medium 1.
A rotating brush 17 is provided to remove cake remaining without being scraped off by the scraper 6 by rotation thereof, and is designed to constantly clean the surface of the filter medium and scrape off the remaining cake. .

1+ of the discharge and filter media in a solid-liquid separator with such a configuration
I will explain the outline of i-sweeping.

I'll: When the undiluted solution 20 is supplied from the undiluted solution drain port 18 to the surface of the 1-type saturated material 1, a cake 21 is deposited in a layer on the surface of the cylindrical filter material 1 in a continuous manner. The liquid sucked into the filter medium 1 is discharged to the external atmosphere as described in 1-, and the cake 21 deposited on the cylindrical filter medium 1 is removed by the scraper 6 as indicated by I-+ into a volume '14 (not shown). figure)
The solid and liquid components are removed by scraping. In addition, if the stock solution 20 received in the stock solution tank 7 is suctioned and moleculed as described above, a layer of cake 21 that was not completely removed by the scraper 6 and left behind is formed in the F section of this scraper. It is scraped off and removed by the rotation of the rotary plan 17.

Here, the rotational speed of the rotary blank 17 is 6゛ compared to the rotational speed of the circular A1) shape e4Ai! By rotating it at high speed, 1: The above-mentioned cake can be scraped off easily.

In this way, the surface of the cylindrical filter medium 1 is always returned to its original state, producing a filtration capacity (11), so that solid-liquid separation can be carried out continuously.

Effect of C light 1!1) As described in 1-1 below, according to the solid-liquid separator of the present invention, a rotating brush is provided along the surface (nl) of the cylindrical filter medium, and the phase-resistant surface is constantly and continuously 71' By sweeping, the surface of the filter medium can be created, which has the effect of regenerating the processing capacity of solid-liquid separation with an inexpensive means 11).

[Brief explanation of drawings]

Fig. 1 is a cross-sectional structural diagram showing the .' FIG. 4 is a diagram showing a schematic configuration, and is a diagram in which the mi-plane structure i11 of the solid-liquid molecular portion of another conventional device is reduced. 1... Cylindrical filter medium, 2... Rotating shaft, 3... ...Brush, 4...Central;-rotating shaft, 5A, 5B...Flanone, 6...Scraper, 7...D;1 liquid tank, 8
...Vibe, 9...Drive wheel, 10...Speed mechanism, 11...Pulley, 12...Head, 13.
...Motor, 14...Suction pump, 15...Container,
16... Vacuum valve, 17... Rotating brush, 18.
... Drain port, 20... Stock solution, 21... Cake, 62
...Nearing. Applicant's agent Yu Yasugata Mitsuryo 2 Figure 1σ 3rd session $ 4 Figure

Claims (1)

[Claims] A cylindrical filter medium made of a hard porous material having continuous pores, a side plate connected to a rotating shaft and rotatably sealing both ends of the filter medium, and a reduced pressure that maintains a space formed by the filter medium and the side plate in a reduced pressure state. means, means for dispersing a solid-liquid mixed fluid containing impurities onto the surface of the filter medium, and only the liquid portion of the solid-liquid mixed fluid is absorbed into the inside of the filter medium due to a pressure difference between the pressure reducing means, A solid-liquid separator equipped with a scraping means for scraping solids deposited in a layer on the surface of the filter medium along the side surface of the filter medium, a rotating brush that rotates while being pressed against the surface of the filter medium, A solid-liquid separator characterized in that the surface of the filter medium is regenerated by removing the solid content deposited on the surface of the filter medium that could not be removed by the scraping means by rotation of the rotating brush. .