JPH0474575A - Method and apparatus for removing supernatant liquid of bottle washing machine - Google Patents

Abstract

PURPOSE:To prevent the muddiness, sticking or solidification in a tank due to an ink component by taking out the supernatant liquid containing a large quantity of an ink component in the tank to the outside at an early stage. CONSTITUTION:A carrier basket in which a labelled bottle is inserted is moved by carrier chains 4 while dipped in dipping tanks 2, 3 and the label bonded to the bottle is peeled off during this period to wash the bottle. At this time, the first trough 16 having an inclined bottom is provided to the upper part of the first caustic dipping tank 2 between the chains 4 over the entire lateral region of the tank main body and the liquid surface of the first tank 2 is controlled so as to always become higher than the liquid flow surface of the first trough 6. By this head, the substance other than a washing solution suspended in the upper liquid layer of the first tank 2 is allowed to flow in the first trough 16 along with a supernatant liquid and the liquid mixture taken out of the tank from the first trough 6 is passed through the first filter 20 through the first cushion tank 8 and the fitrate is injected to the bottle row issured from the first tank 2 from above.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a method and apparatus for removing supernatant liquid from a bottle washing machine.

B. Conventional technology A large number of carrier baskets are provided into which bottles with labels attached are inserted, and these baskets 1 are operated while being immersed in a plurality of soaking tanks by means of a carrier chain.

C1 Problems to be Solved by the Invention When using a conventional immersion type bottle washer to wash bottles with so-called "Paluminium" labels, which have become more common these days,
The aluminum label and caustic react to generate hydrogen gas. In addition, if the label surface is coated with varnish, the ink will be released from the label, promoting the muddying of the tank liquid in each cleaning tank (caustic tank, etc.), and the adhesive varnish will become the main ingredient, causing ink, paper, dirt, etc. It becomes fixed, enlarges, and gets caught in the rotating parts of the machine. Furthermore, there is a problem in that ink components re-adhere to washed bottles, increasing the incidence of poorly washed bottles.

The present invention solves the above problems by quickly removing the supernatant liquid from the tank containing a large amount of ink components out of the tank and sorting it with a filter.
A method in which ink components, etc. are removed from the machine along with the paper label to purify the tank fluid, and filtered furnace fluid is sprayed onto bottles at each detection port to prevent ink components from re-adhering. and equipment.

01 Means for Solving the Problems In order to achieve this object, the configuration of the present invention is as follows. The first WI method includes a number of carrier baskets into which labeled bottles are inserted, and these baskets are moved while being immersed in a dipping tank by means of a carrier chain, during which time the labels affixed to the bottles are peeled off and washed. When using a bottle washing machine, a first gutter having an inclined bottom is provided between the carrier chains at the upper part of the first caustic immersion tank, and the first gutter has a sloped bottom over the entire width of the tank body. The liquid level is controlled to be higher than the secondary liquid flow surface, and by this head, substances other than the cleaning liquid floating above the liquid layer in the first tank are flowed into the first gutter along with the supernatant liquid, and The mixed liquid taken out of the tank from the gutter is passed through a first cushion tank and a first filter, and the furnace liquid is injected above the first caustic immersion tank and onto the rows of bottles coming out from there.

The method of the second configuration has a number of carrier baskets into which the labeled bottles are inserted, and these Basquera I.
When using a bottle washing machine that runs bottles while being immersed in a dipping tank using a carrier chain, during which the labels affixed to the bottles are peeled off and washed, the carrier is First and second gutters with slanted bottoms are provided between the chains over the entire width of the tank body, and various liquid levels are always maintained at the first and second gutters. The liquid level is controlled so that it is higher than the liquid flow surface of the second gutter, and due to this head difference, substances other than the cleaning liquid floating on the upper part of the various liquid layers are removed together with the supernatant liquid from the above-mentioned 11. The mixed liquid poured into the second gutter and taken out of the tank from the first gutter is passed through the first cushion tank and into the first filter, and the furnace liquid comes out from above the first caustic immersion tank. The concentrated liquid from the first filter is directed to a second filter, and the mixed liquid taken out of the tank from the second gutter is guided to the second filter via a second cushion tank, and the concentrated liquid is introduced from the first filter to the second filter. The furnace liquid from the second caustic dipping tank is injected into the row of bottles emerging from the second caustic dipping tank, and the liquid level in the first caustic dipping tank is maintained lower than the liquid level in the second caustic dipping tank. , and a notch is provided in the partition plate between the two tanks to allow the liquid to flow from the second tank to the first tank.

The apparatus of the third configuration includes a first gutter having a bottom inclined with respect to the tank width direction, which is provided between the carrier chains at the upper part of the first caustic immersion tank, and which extends over the entire width of the tank body; a first cushion tank that temporarily stores the mixed liquid taken out of the tank; a first pump that sends the mixed liquid from the tank;
a first filter for filtering the liquid mixture from the pump; a first spray nozzle for spraying the furnace liquid from the first filter onto a row of bottles emerging from the first caustic dip bath; The first liquid level control unit includes a liquid level switch, an automatic water supply valve, and an automatic discharge valve, which are provided to maintain a constant liquid level in the caustic immersion tank.

The apparatus of the fourth configuration includes first caustic dipping tanks having bottoms inclined with respect to the tank width direction, which are alternately provided across the entire width of the tank body between the carrier chains at the top of each of the first caustic immersion tank and the second caustic immersion tank. a gutter and a second gutter, a first cushion tank that temporarily stores the mixed liquid taken out of the tank from the first gutter, a first pump that sends the mixed liquid from the tank, and a mixed liquid from the pump. a first spray nozzle that injects the furnace liquid from the first filter onto a row of bottles emerging from the first caustic dipping tank above the first caustic dipping tank; a second cushion tank that temporarily stores the mixed liquid from the tank; a second pump that sends the mixed liquid from the tank; and a second filter that filters the mixed liquid from the pump and the concentrated liquid from the first filter. a second spray nozzle for injecting furnace liquor from the second filter onto a row of bottles exiting the second caustic dip tank above the second caustic dip bath;
The caustic immersion tank includes first and second liquid level control units each consisting of a liquid level switch, an automatic water supply valve, and an automatic discharge valve provided for each tank so as to keep the liquid level of each tank constant. That's true.

E2 action The liquid level of the first and second tanks is always the same as that of the first tank. The liquid level is controlled so that it is higher than the liquid flow surface of the second gutter, and due to this drop, substances other than the cleaning liquid (mostly ink and varnish components) floating on top of various liquid layers are removed together with the supernatant liquid from the first gutter. Pour into the second gutter.

Next, the mixed liquid taken out of the tank from the first gutter is passed through a first cushion tank and passed through a first filter by a first pump, and the furnace liquid is passed from there above the first caustic immersion oval. The row of bottles is sprayed from the first spray nozzle. Meanwhile, the concentrated liquid from the first filter is periodically guided to the second filter by the first pump.

Further, the mixed liquid (containing a large amount of paper labels) taken out of the tank from the second gutter is guided to the second filter by a second pump through a second cushion tank, and the furnace liquid from the filter is transferred to the second filter. 3 pumps spray a second spray nozzle onto the rows of bottles emerging from the second caustic dip bath.

F. Example Hereinafter, embodiments of the present invention will be explained based on an example shown in the drawings.

In Figures 1-3, a hot water tank 1 is connected by a number of carrier chains 4 into which labeled bottles are inserted. Soaking tank 2
, 3 while running the bottle, during which time the label affixed to the bottle is peeled off and washed.

A first gutter 6 and a second gutter 7 are provided between the carriers 4 at the upper part of each of the first caustic dipping tank 2 and the second caustic dipping tank 3, and have bottoms that are inclined with respect to the tank width direction over the entire width of the tank body. It will be done. A first cushion tank 8 temporarily stores the mixed liquid taken out of the tank from the first gutter 6, and a first pump 10 that sends the mixed liquid from there. A first filter 20 is provided, and a first spray nozzle 13 is provided for injecting the furnace liquid of the first filter onto the row of bottles emerging from the first caustic dip bath 2 above the first caustic dip tank 2.

Also, a second cushion tank 9 temporarily stores the mixed liquid taken out of the tank from the second gutter 7, a second pump 11 that sends the mixed liquid from the tank, and a second cushion tank 9 that sends the mixed liquid from the tank. A second filter 30 is provided which passes through the filter. The concentrated liquid from the first filter 20 is also introduced into the second filter 30 . The furnace liquid from the second filter 30 is sent by a third pump 12 to a second spray nozzle 14 provided above the second caustic dipping tank 3 .

In order to keep the liquid levels of the first and second caustic immersion tanks 2 and 3 constant, liquid level switches 15a and 15b, automatic water supply valves 16a and 16b, and automatic discharge valves are installed for each tank. 17a and 1.7b are provided. □″□ Here, the first filter 20 is constructed as shown in Fig. 4. A partition ring 22 is concentrically fixed to the inside of an outer cylinder 21 made of an upright cylinder, and a circumferential gap is concentrically formed on the upper surface of the partition ring 22. Tube 2
3 is fixed upright. This circumferential gap cylinder 23 is made by winding a triangular cross-section wire into a coil around the outer periphery of a perforated cylinder leaving a slight gap, with one vertex of the triangle facing inward and the opposite side of the vertex facing outward. It is fixed. A scraper 24 is provided on the outer periphery of the circumferential gap cylinder 23 so as to be rotatable by a motor 26 having a rotating shaft 25°. A liquid inlet 27 is provided at the top of the outer cylinder 21. A liquid outlet 28 that passes through the lower part and communicates with the inside of the circumferential gap cylinder 23 is fixed to the lower surface of the partition ring 22.

Further, the second filter 30 is constructed as shown in FIG. 5.6. A mesh cylinder 31 having a horizontal rotation axis is rotatably provided via a chain transmission section 34 and a motor 35, and communicates with one outside of the mesh cylinder 31 to provide a liquid supply tank 32. Mesh cylinder 31
A furnace liquid tank 33 is provided in communication with one inner side of the furnace. A rubber roll 36 rotates in contact with the upper outer peripheral surface of the mesh cylinder 31 to transfer paper labels, etc. A scraper 37 is provided to contact this.

The operating state will be explained above. 1st and 2nd tank 2
, 3 is always the 1st. The liquid level is controlled so that it is several mm higher than the liquid flow surface of the second gutter 6, 7, and by this head difference, substances other than the cleaning liquid (mostly ink and varnish components) floating above the various liquid layers are removed to the supernatant liquid. Along with the first. 2nd gutter 6, 7
Pour into.

Next, the mixed liquid taken out of the tank from the first gutter 6 is passed through the first cushion tank 8 and passed through the first filter 20 by the first pump 10, and the furnace liquid is poured above the first caustic immersion tank 2. The first spray nozzle 13 sprays the bottle rows that come out from there. On the other hand, the concentrated liquid from the first filter 20 is periodically guided to the second filter 3d by the first pump 10.

In addition, the mixed liquid (containing a large amount of paper labels, etc.) taken out of the tank from the second gutter 7 is guided to the second filter 30 by the second pump 11 via the second cushion tank 9, and the liquid is sent to the furnace from the filter. The liquid is sprayed by a third pump 12 through a second spray nozzle 14 onto the rows of bottles emerging from the second caustic dipping tank 3 above.

The ink component adheres to and impregnates a paper label, etc., and is discharged from the discharge port of the second filter 30.

Here, the liquid level of the first caustic immersion tank 2 is kept lower than the liquid level of the second caustic immersion tank 3, and a notch 5a is provided in the partition plate 5 between the two tanks, so that the liquid level of the first caustic immersion tank 2 is The liquid is allowed to flow into the first tank 2. As a result, an amount corresponding to the concentrated liquid sent from the first filter 20 to the second filter 30 is always sent to the second filter 30.
Tank 2 is replenished.

Also, 1st. The second cushion tanks 8 and 9 have upper and lower cylinders, respectively.
There are three liquid level switches (not shown): middle, bottom,
When the liquid level is between the upper and middle switches, respectively, the first switch is turned on. Second
Pump 10.11 is activated and the lower switch is for emergency stop of the pump.

In the first filter 20, compared to conventional products, the triangular cross-section wire has almost no space for slag to accumulate, and since it accumulates on the surface, it is easy to remove, there is no need for disassembly and cleaning, continuous operation is possible, and it is suitable for automation. . In addition, the triangular wire makes it easy to remove furnace slag due to the nozzle effect of backwash flow, and the filtration ability is restored by backwashing with a small volume and low pressure.

Further, in the second filter 30, liquid containing relatively large foreign substances such as paper labels can be treated in a large scale due to the mesh cylinder having a horizontal rotation axis.

The present invention is not limited to the embodiments and embodiments described above, but includes various modifications without departing from the spirit and scope of the claims.

G. Effects of the Invention According to the configuration of the present invention, the supernatant liquid in the tank containing a large amount of ink components can be taken out of the tank at an early stage, thereby preventing the inside of the tank from becoming muddy or sticky due to the ink components. Further, the spray nozzle prevents the ink components from being re-deposited.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional system diagram of the present invention, Fig. 2 is an enlarged view of its main parts, Fig. 3 is a cross-sectional view along ■-■, Fig. 4 is a vertical cross-sectional view of the first filter, and Fig. 5 is a cross-sectional view of the first filter. 2 front view of filter, 6th
The figure is a plan view thereof. 1... Hot water tank 2... First caustic immersion tank 3... Second caustic immersion tank 4... Carriage chain 5... Partition plate, 5a/notch 6... First gutter 7... Second gutter 8...First cushion tank 9...Second cushion tank 10...First pump 12...Third pump 13...First spray nostle 14 15a, 15b...Liquid level switch 16a, 161]...Automatic water supply valves 17a, 17b...Automatic discharge valve 20...First filter 21...Outer cylinder 23...Circumferential clearance cylinder 25...Rotary shaft 27/liquid inlet 30...Second filter 31...Mesh cylinder 33...Furnace liquid tank 35...Motor 34...Transmission section 32...Liquid supply tank Second spray nozzle 11...Second pump 22... ...Partition ring 24...Scraper 26...Motor 28...Liquid outlet 36...Rubber roll 37...Scraper Patent applicant Hitachi Zosen Sangyo Co., Ltd. Agent Patent attorney Inukai parent and child

Claims (4)

[Claims] (1) A bottle washing machine that has a number of carrier baskets into which labeled bottles are inserted, and runs these baskets while being immersed in a dipping tank by means of a carrier chain, during which time the labels affixed to the bottles are peeled off and washed. When using the first caustic immersion tank, a first gutter with a sloped bottom is provided between the carrier chains at the upper part of the first caustic immersion tank, and the liquid level in the first tank is constantly adjusted so that the liquid flows in the first gutter. The liquid level is controlled so that it is higher than the surface, and due to this head, substances other than the cleaning liquid floating on the upper part of the liquid layer in the first tank are flowed into the first gutter together with the supernatant liquid, and taken out from the tank from the first gutter. The supernatant liquid of a bottle washer is characterized in that the mixed liquid is passed through a first filter through a first cushion tank, and the filtrate is injected onto a row of bottles emerging from the first caustic dipping tank above the first caustic dipping tank. Liquid removal method. (2) A cleaning method that has a number of carrier baskets into which bottles with labels affixed are inserted, and these baskets are moved while being immersed in a dipping tank by a carrier chain, during which the labels affixed to the bottles are peeled off and washed. When using a bottle machine, first and second gutters with sloping bottoms are provided between the carrier chains at the top of each of the first caustic dipping tank and the second caustic dipping tank, covering the entire width of the tank body. The liquid level is controlled so that the liquid level is always higher than the liquid flow surface of the first and second gutter, and due to this head difference, substances other than the cleaning liquid floating in the upper part of the liquid layer of each tank are removed together with the supernatant liquid. The mixed liquid poured into the second gutter and taken out of the tank from the first gutter is passed through the first cushion tank and into the first filter, and the filtrate comes out from above the first caustic dipping tank. The concentrated liquid from the first filter is directed to a second filter, and the mixed liquid taken out of the tank from the second gutter is guided to the second filter via a second cushion tank, and the concentrated liquid is introduced from the first filter to the second filter. The filtrate from the second caustic dipping tank is injected onto the row of bottles emerging from the second caustic dipping tank above the second caustic dipping tank, and the liquid level in the first caustic dipping tank is maintained lower than the liquid level in the second caustic dipping tank. , and a method for removing supernatant liquid from a bottle washing machine, characterized in that a notch is provided in a partition plate between the two tanks, and the liquid is caused to flow from the second tank to the first tank. (3) Between the carrier chains at the top of the first caustic dipping tank,
a first gutter provided over the entire width of the tank body and having a bottom inclined with respect to the tank width direction; a first cushion tank for temporarily storing the mixed liquid taken out from the first gutter to the outside of the tank; a first pump that sends the mixed liquid from the tank; a first filter that filters the mixed liquid from the pump; and a row of bottles that passes the filtrate from the first filter above the first caustic soaking tank. a first spraying nozzle that sprays the caustic liquid into the first caustic immersion tank, and a first liquid level control section that includes a liquid level switch, an automatic water supply valve, and an automatic discharge valve, which are provided to maintain a constant liquid level in the first caustic immersion tank. A supernatant liquid removal device for a bottle washing machine, which is characterized by: (4) A first gutter and a second gutter having bottoms inclined with respect to the tank width direction are provided between the carrier chains at the top of each of the first caustic dipping tank and the second caustic dipping tank, spanning the entire width of the tank body. a first cushion tank that temporarily stores the mixed liquid taken out of the tank from the first gutter, a first pump that sends the mixed liquid from the tank, and a first filter that filters the mixed liquid from the pump. a first filter for injecting the filtrate of the first filter onto a row of bottles emerging from the first caustic dip tank;
a spray nozzle, a second cushion tank that temporarily stores the mixed liquid taken out of the tank from the second gutter, a second pump that sends the mixed liquid from the tank, and a second cushion tank that sends the mixed liquid from the pump and the second cushion tank; 2nd to filter the concentrate from 1 filter
a filter, a second spray nozzle for spraying the filtrate from the second filter onto a row of bottles emerging from the second caustic dip tank above the second caustic dip tank, and a liquid level in the first and second caustic dip tanks; A washing bottle characterized by comprising first and second liquid level control units each consisting of a liquid level switch, an automatic water supply valve, and an automatic discharge valve provided for each tank so as to maintain the liquid level individually at a constant level. Machine supernatant liquid removal device.