JPS5966313A - Method and apparatus for separating toxic substance dissolv-ed in washing liquid - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for separating harmful substances contained in washing liquids, particularly cellulose, carbohydrates, metal ions, organic acids and the like which are discharged from bottle washing machines. A method for recovering a washing liquor containing residual beverages, in which in a continuous process more and more harmful substances are precipitated by a polyelectrolyte added to the washing liquor in a reaction vessel and deposited on the polyelectrolyte. Then, the local molecular electrolyte is separated from the washing liquid flowing through the multilayer filter from top to bottom by filtration and absorption by a multilayer filter housed in a reaction vessel together with harmful substances attached to its polymer chains. The present invention relates to such a method and apparatus.

This method and device has been demonstrated in practice for the successful separation of otherwise difficult to separate harmful substances, such as carbohydrates and cellulose. However, certain problems have arisen in cleaning the multilayer filter housed within the reaction vessel. That is, a thicker and less penetrating ν mass forms on the upper VC of the multilayer filter, which makes it necessary to clean the filter and, in particular, to remove this f' mass after a running time depending on the harmfulness of the washing liquid. In that case, a simple y↓ flow of wash water will not produce the desired result. Therefore, conventionally, in order to break up and wash away the clumps, washing water and u-shin,
', tt, 4 air is proposed to flow through a multilayer filter in the opposite direction at 1111 times. The disadvantage of this cleaning method is that when the air pressure and water beads that actually break up the f-clumps are applied, most of the small specific gravity material is swept away from the reaction vessel, and the filter layer is also mixed with the filtrate. The problem is that this occurs. In order to prevent this tidal material from being washed away, it has already been proposed to surround the multilayer filter with a bag-like cloth cover. In this way, if a suitable cloth is selected, the washing away of e-material can be considerably reduced, but
In fact, in such cases, the cleaning air and especially the cleaning water will try to pass past the filter between the filter cover and the inner wall of the container, thus bypassing the filter and thus preventing the cleaning 7.
It is clear that the p-effect is significantly reduced and at least the wash time is significantly prolonged.

It is an object of the invention to provide a method and a device of the type mentioned at the outset.
The object of the present invention is to improve the cleaning of a multilayer filter so that it can be done quickly, effectively and economically by backwashing without losing a large amount of one material.

According to the invention, this L1 objective can be achieved by the means described in the characterizing part of claim 1. That is, unlike the prior art, the multilayer filter does not allow wash water and wash air to flow through it simultaneously, but rather the reaction vessel is first filled with wash water, the wash water supply is stopped, the compressed air inlet is opened, and a mass is After the sludge layer is crushed and formed on the filter, the compressed air is turned off again and the P material particles in the sludge layer are allowed to settle, and then the sludge layer is forced out of the reaction vessel by the compressed air. This time course achieves on the one hand a significant cleaning of the filter, and on the other hand the catf'
The material is pushed out of the reaction vessel (-sinking is prevented).

A device specifically designed for carrying out the invention is set out in claim 3. Particularly advantageous embodiments of this device are set out in claims 4 to 17.

Embodiment 5 of the device based on the present invention shown in the drawings below
B2. I will clarify.

In FIG. 1, 10 is a reaction vessel in which a multilayer filter 11 is housed, 12 is an inlet for washing liquid to be purified, and 13 is an outlet for purified washing liquid. In addition to the inlet 112 and outlet 13 provided for normal washing liquid purification operation, the container 10 has an inlet and an outlet L1 for backwashing.

That is, the dipping tube 14 protrudes into the container 10 from the direction of the container 10, and this dipping tube 14 reaches as far as □ near the top surface of the multilayer filter 11, and the opening of the dipping tube 14 is Pd14a.
Q: It's covered. The dip tube 14 is connected to the valve 1 on the outside of the container 10.
5a□, washing liquid discharge pipe 15 and valve 16.1
It branches into a backwash water discharge pipe 16 with a □. Further, a compressed air supply pipe i7' is opened in the immersion pipe 14, specifically in an area between the container ceiling and the immersion pipe branch, and another compressed air supply pipe 18 is opened into the container 10 from the container ceiling. I'm in the middle of the day.

Further, inside the container 10, specifically inside the multilayer filter 11, there are nozzles lja, "'2(i, i
': three horizontal nozzle tubes 19 with 2ia,
20. □There is 21.

In that case, the lowest nozzle pipe] 9 can be connected to the cleaning water supply pipe 22 and the compressed air supply pipe 23, whereas the middle nozzle pipe 20 and the upper nozzle pipe 21 can be connected to the compressed air supply pipes 24 to 25, respectively. connected only to

In order to separate harmful substances from washing liquid during normal operation,
This device operates in a generally known manner. That is, the solution to be purified is supplied from the inlet 1i, and a polyelectrolyte for coagulating harmful substances is added from a metering device (not shown);
Multi-quantity filter, 11. and is discharged through outlet 13. After a predetermined operating time, the four-layer ladle 11 is to be washed in a hot water bath (turned on after a predetermined operating time), and first the inlet 1 and outlet 13 are closed, and the valve 15a is opened. . By introducing compressed air through the arrangement pipe 18, the remaining washing liquid on the multilayer filter 11 is removed from the dipping pipe 14.
And it passes through the pipe 15 and is discharged upward. container 1d
After the air is completely emptied, the valve 15a and the compressed air supply pipe 1 are closed again.

The wash water supply pipe 22 is now opened and the container 10 is filled with wash water. As soon as this filling process is finished, wash.

The purified water supply pipe 22 is closed and the J compressed air supply pipes 23 and 2 are closed.
4.

25 is υ (go), and valve 1 (3A is also opened like +Hi).

The P mass on the surface of the multilayer filter 11 is crushed by the compressed air flowing through it, and on top of the filter 1.1 there are harmful particles of the decomposed F mass and harmful particles from inside the filter 11. A sludge-water fluidized bed is formed containing particles and entrained filter particles. The compressed air supply pipes 23, 24', 25 are opened and closed at the same time, and preferably the compressed air is supplied to the uppermost nozzle pipe 21 in order to break up the clumps.

Only the supply pipe 25 is opened, and after the crushing of the f-lump, the compressed air supply pipes 24 and 23 are opened in sequence, the closing taking place in the reverse order. After a correspondingly determined cleaning time, the supply of compressed air is cut off, and the fluidized bed becomes quiet, so that the material particles present therein settle out. In that case, of course r
It should be noted that the phase particles must have a greater specific gravity than the sludge particles. Moreover, since mixing would otherwise occur in the filter layers, the top filter layer has the material with the lowest specific gravity, and the bottom filter layer has the f-material with the highest specific gravity. Determine the structure of the layered filter as follows. Also, it is important here to optimally determine the particle size of the filter layer.

However, it has become clear that in practice such determinations can be made using common materials. This ensures that the r-phase particles in the fluidized bed settle out relatively quickly, in any case faster than the sludge particles, and that the settling process proceeds in such a way as to maintain the filter layer or its boundaries. such decisions can be made.

As soon as the lumber particles have settled, compressed air is supplied into the container 10 through the tube 18 and into it.

Therefore, the sludge-wash water mixture is transferred to the dip pipe 14 and the pipe 1.
6. This evacuation process is finished.

After that, the compressed air supply pipe 18 is closed again, and the washing water for rinsing is passed through the pipe 22 to the multilayer filter 11.
The water flows through it.

Before carrying out the rinsing process, it is expedient to momentarily supply compressed air to the dip tube 14 via the line 17 in order to remove deposits on the dip tube 140f network 14a.

The two-step process can be repeated at will to ensure satisfactory cleaning even when the filter and container are heavily soiled. The process of ridges, repetitions, and repetitions, ta℃・tei (
It is sufficient that the compressed air is supplied only through the lowest nozzle pipe 19.

- FIG. 2 shows a female embodiment based on the present invention.

The basic structure corresponds to the embodiment shown in FIG.
or similar structural elements are designated by the same reference numerals as in FIG. 1 to identify them. The difference from the embodiment of FIG. 1 is that the reaction vessel 10 is divided into three parts. That is, a hemispherical bottom portion 10a, a cylindrical central portion 1 (l
b and a hemispherical ceiling portion 10c. These container elements each have a connecting edge and a flange which is clamped by flange clamps 30 and 31. Sawa nets 32 and 33 are inserted between the J flange). Furthermore, the multilayer filter 11 is divided into two filter blocks lla and 11b, 'I-thin, in which case especially for the absorption Q' (two-phase one-lower-one-law filter block lla The upper filter block 111), which is placed on the top of the filter block 111 and is used especially for one-pass action, is placed on the upper fJ net 33. There is an air hole between the filter blocks lla and llb. In order to be able to specifically clean the filter blocks 11a and 111), in addition to the wash water inlet 22 and the compressed air inlet 23, there is also a separate wash agent D22:r and a compressed air inlet 23a, as well as the wash water outlet 16. I [(2
Another wash water outlet 16a is provided in the. Inlet C'122 used for cleaning the filter block lla,
23 is an opening at the bottom of the container 10ai (7, a filter valve [cock 11b], an auxiliary inlet for cleaning [122a,
23a opens into the air chamber between filter blocks lla and llb. A filter block 11a to 1.1b is connected to the wash water outlet 16 for the filter block 1.1a.
starting from the air chamber between the filter block 111]
An outlet 16a leading to the opening 16 originates from the container roof part 14.

The cleaning process is based on FIG.
lb washes are performed at different times. It is expedient that first the upper filter block llb is cleaned in order to break up its ηj lumps. However, it can also be operated in reverse, i.e. with t4 still on top of filter block llb.
Even in cases where lumps are present, the filter block 11a can be cleaned because the cleaning water outlet pipe 16 comes out from between the filter blocks 11a and 111). Only I
~ When cleaning at least the upper filter block 111), after the flow of compressed air (EE compressed air supply pipe 23a), a settling time is maintained for the flowed 1 material particles to settle down, and then the 1 It is important that the sludge-water mixture is forced out of the vessel 10 through the discharge line 16a by the compressed air supplied at -.

The container 10 is divided into 13 container parts 10a, 10b,
10c 4) has the advantage that if necessary, the container can be opened and the filter blocks 11a*11b can be cleaned manually. Expenses are high because a very precise flange attachment device must be constructed to guarantee a pressure resistance of 10%.However, in general, even with engineering skill [7], the cost of this construction is In the case of backwashing according to the method of the invention, manual intervention in the container is not necessary.

Therefore, in practice, the embodiment shown in FIG. The division facilitates decisions regarding the granularity of the filter layer 16 and the ratio jli described above.
') in the glaze, there are 1 and 1 pieces of porcelain. Further t4
Since lumps form almost exclusively on the uppermost filter blocks, there is no need for a vigorous flow of compressed air through the lower filter blocks, and in most cases, simple flushing water is sufficient.

Figure 3 is based on Figures 1 and 2.
FIG. 1 shows a cross-sectional view of a multilayer filter cart 1 as installed in a . Accordingly, in FIG. 3, the -C multilayer filter 11 is inserted into a cylindrical case 40 which is closed on both sides with l-1 cloths 41 and 42. t1 cloth 41
and 42 are designed in such a way that during backwashing the p-cloth holds the lachrymal particles almost fixed, yet the flow through of the washing liquid is hardly impeded during normal cleaning of the washing liquid.

As mentioned above, during backwashing, the case 40 is equipped with a soft ink in order to make the washing water pass between the case 40 and the inner wall of the container 10 and flow downwardly through the filter 11 through the detours 1 to 4. A packing ring 43 made of a material such as natural rubber or synthetic rubber is provided.

Forming the multilayer filter 11 with a cartridge has advantages in the manufacture of filters and their insertion into filters.
If filter blocks 711a and 11b shown in the figure are used, they can be housed in one common case, but in most cases each filter block has its own special case 4.
It is also advantageous to provide 0, 41, 42, in which case each cartridge is stacked on top of one another with or without a gap.

Furthermore, the cylindrical case 40 can be made of fabric, and the filter 11 can therefore be enclosed in an integral cloth bag. However, even in this case, it is important to provide a packing ring 43 on the side surface. Of course, it is also possible to provide the packing ring 43 on the inside of the container wall, or to provide the container 10 as well as the case 40 with a ring thereby forming a labyrinth packing.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a reaction vessel with a multilayer filter based on the first embodiment of the present invention, and FIG. 2 is a side view of a reaction vessel with a multilayer filter based on the second embodiment of the present invention. 3 are longitudinal sectional views of the polycrystalline filter cartridge. 1 (!=-=reaction volume, 11 ■° multilayer 70', 12-゛ inlet, 13... 1 outlet, 14... immersion tube, 15...
・Washing liquid discharge pipe, 16...Washing water discharge pipe, 17,
18...Compressed air supply pipe, 19, 20, 21...
・Nozzle pipe, 22...Previous purified water supply pipe. 23, 24, 25... compressed air supply pipe, nod, 31
...Flange connection part, 32, 33...F mesh, 41
, 42...F cloth, 43...Patsukin ring. Applicant's agent Sei Inomata Engraving of the drawing (no change in content) Procedural amendment (method) Showa leap year July/Rime Commissioner of the Patent Office Kazuo Wakasugi 1, Indication of the case Showa Kaibu'I'4 Patent Application No. 36092 2, Masterpiece of the Invention Method and Apparatus for Separating Harmful Substances Dissolved in Washing Liquid 3, Related Department Patent Applicant to the Person Who Makes the Amendment Case

Claims (1)

[Claims] 1) A method for separating harmful substances dissolved in a washing liquid, particularly a method for recovering a washing liquid containing cellulose, carbohydrates, metal ions, organic acids, and/or residual beverages discharged from a bottle washing machine. In the continuous process, the harmful substances are first condensed in the reaction vessel by the polyelectrolyte added to the washing liquid, deposited on this polyelectrolyte, and then the harmful substances attached to the polymer chains are In such a method, self-harmful substances in the washing liquid are separated from the washing liquid flowing downward through the multilayer filter from the soil by means of e-filtration and absorption by a multilayer filter housed in a reaction vessel together with the substances. After a period of operation corresponding to the application, the multilayer filter a) fills the reaction vessel from below with wash water, and b) breaks up the t1 mass deposited on the filter (reserves and deposits sludge-water on the filter). plowing compressed air from below through a multilayer filter to generate a fluidized bed; C) stopping the compressed air and allowing the particles in the sludge-water layer to settle; and d) pumping the sludge water upwards from the reaction vessel. A method for separating harmful substances dissolved in VC in a washing liquid, characterized in that the harmful substances dissolved in VC in a washing liquid are regenerated by blowing compressed air from above into a reaction vessel for pushing out, and e) rinsing the filter with clean washing water. 2) A method according to claim 1, characterized in that compressed air is passed through only the upper layer or only the upper layers of the multilayer filter in order to break up the P lumps. 3) A method for separating harmful substances dissolved in washing W12ti, especially cellulose, carbohydrates, etc. discharged from bottle washing machines.
A method for recovering a washing liquid containing metal ions, organic acids and/or residual beverages, in which in a continuous process the harmful substances are first condensed by a polymer electrolysis chamber which is added to the washing liquid in a reaction vessel; The multilayer filter is deposited in the electrolyte and is housed in the ash container along with harmful substances attached to the polymer chains of the polymer electrolyte car. An apparatus for carrying out a process in which washing liquid is separated from the washing liquid flowing through from above downward, the apparatus comprising a reaction vessel and a multilayer filter provided in the reaction vessel, which is separated from the bottom of the reaction vessel. In a device in which the outlet piping for the stratified washing liquid comes out from the side area and the supply piping for cleaning water and compressed air opens in the lower area, the supply piping for the cleaning water and the compressed air are separated. 2 which can be switched to
It is connected to the main supply pipes, namely the wash water supply pipe (22) and the compressed air supply pipe (23), and opens into the upper region of the reaction vessel (10) immediately above the multilayer filter (11), and the reaction vessel (1o) A dip tube (14) connected to a wash water discharge tube (16) on the outside of the reaction vessel (10) is provided.
An apparatus for separating harmful substances dissolved in washing liquid, characterized in that a separate air supply pipe (18) is opened in the upper region of the washing liquid. 4) A nozzle pipe (1) connected to the compressed air supply pipe (22, 23) outside the reaction vessel (5.
9). Device according to claim 3'. 'I5) Nozzle pipe (1
9) Another nozzle *c2o, 2i> is placed on the upper side, and this dynamic nozzle pipe <20, 21) force, +,
. Compressed air supply pipe, (2←:)1
A patent claim characterized by and? The device described and described in Section 4 of Section 1. 6) filter (14a) force on the opening of the dip tube (14);
A further compressed air supply pipe (17) opens into the dip pipe (14) on the outside of the general reaction vessel (1). Apparatus. 7) Characterized by the fact that the agonizing pipe (14) is branched into two pipes outside the reaction vessel (lo), namely a washing water discharge pipe (16) and a washing liquid discharge pipe (15). An apparatus according to any one of claims 3 to 6. 8) Device according to any one of claims 3 to 8, characterized in that all supply and discharge pipes are equipped with separately switchable valves, preferably solenoid valves. '9) The multilayer filter (11) is divided into two filter blocks (11a, 11b), in which case the valley filter block is provided with cleaning water and compressed air supply pipes (22, 23, 22a, 23a) and cleaning water. and a compressed air discharge pipe (16, 16a).
The device according to any one of Items 8 to 8. 10) The reaction vessel (10) is divided, in which case the vessel parts (10a, 10b, '10c) are fitted with flange connections (
3o, 31), which are pressure-tightly connected to each other. 11) The device according to claim 10, characterized in that a P net (32, 33) for horizontally partitioning the reaction vessel (1) is inserted into the flange connection part. 12) The multilayer filter (11) ) are inserted into separate multi-cylindrical cases (40, 41, 42), in which case the case (40) can be provided with a packing ring (43). i3 term to 1st
The device according to any one of Items 1 to 1. 13) The mounting device according to claim 12, characterized in that an auxiliary packing ring is arranged on the inner wall of the reaction vessel (10). 14) The filter case □ is composed of a solid cylindrical shape (40) and 'f' cloth (41, 42) that covers this from both sides. Apparatus according to paragraph 13. 15) The device according to claim □12 or 13, wherein the filter case is composed of a bag-like integral piece of cloth. 16) Device according to one of claims 12 to 15, characterized in that a plurality of filter blocks are stacked one above the other in each special case. 17) Top layer (ll b
> is made of a material with a particle size and specific gravity such that the sedimentation rate in the aqueous solution is higher than the sedimentation rate of harmful substances in the washing liquid, but lower than the sedimentation rate of one material in the lower layer of the multilayer filter. The claims characterized in: as;
The device according to any one of Items 3 to 16.