JPS6050676B2 - Bottle washing device that saves thermal energy - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bottle washing device that saves thermal energy.

A bottle machine is usually divided into a number of washing or soaking tanks, and the dirty bottles fed from the bottle feeder are moved along a loop-shaped washing bottle path between each tank using a bolt holder. The bottles are held in the container and cleaned while moving between these tanks, and then sent out from the bottle ejection machine at the outlet.

That is, the bottles are moved through a pre-washing process, a heating process, an erosion process, a cooling process, a washing and rinsing process, and a draining process in this order. Brush away large foreign objects.

Next, in the heating process, the bottle, which is initially at room temperature, is gradually heated and at the same time is soaked in the caustic liquid, and the foreign matter and label strongly attached to the bottle begin to swell. During the immersion process, the bottles are completely immersed in a high-temperature and highly concentrated caustic solution. Next, the bottle cooled in the cooling process is
The bottles are washed with hot water or fresh water in the washing and rinsing process, and then drained in the draining process, and the clean bottles are discharged from the bottle discharging section. In this type of bottle washing work, for example, bottles absorb heat during the heating process and release heat during the cooling process, but the temperature and concentration of caustic liquid in each tank are approximately constant. must be maintained. Conventionally, therefore, each tank is provided with a heater, an outlet for discharging dirty liquid, a supply port for supplying new liquid, and a device for removing labels and the like to keep the inside of the tank clean. However, in the case of this conventional method, all the heat required in the heating process is supplied from outside, and in the cooling process, cooling water is constantly replenished for cooling, and heat is exchanged to reduce the temperature. Water is directly discharged to the outside, resulting in a large loss of thermal energy. Therefore, the present invention provides a bottle washing device that saves thermal energy and can solve the above-mentioned problems.One embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a large number of sprocket wheels supported between a pair of side plates 2. A washing bottle path 3 formed in a loop between the sprocket wheels 1 and driven by a chain extends between a plurality of tubs.

That is, the washing bottle path 3 is constructed by attaching a large number of bottle holders (not shown) to an endless body, and bottles are supplied from a bottle feeder at a bottle feeding section 4 at one end, and bottles are fed from a bottle discharging section 5 at the other end. The bottle is ejected. A bottom plate 6 is attached between the bottoms of both side plates 2, and in a state that is erected from this bottom plate 6 and integrated with both side plates 2, one end outer plate 7 and a first partition plate are arranged in order from the bottle feeding section 4 side. 8, second partition plate 9, third partition plate 10, fourth partition plate 11, fifth partition plate 12, sixth partition plate
A partition plate 13, a seventh partition plate 14, an eighth partition plate 15, a ninth partition plate 16, and the other end outer plate 17 are provided. Said one end outer plate 7
and the first partition plate 8, the screen net conveyor 18
A receiving tank 19 with
2, and this section is then subjected to a preliminary cleaning process. Note that the extra liquid in the receiving tank 19 is discharged as an overflow liquid 23. The first tank 2 is located between the first partition plate 8 and the second partition plate 9.
4 is formed, and a first partition plate 25 for circulating tank liquid that can flow downward is provided in the middle thereof, and excess liquid overflows the first partition plate 8 and flows into the receiving tank 19.

A second tank 26 is formed between the second partition plate 9 and the third partition plate 10, and a second partition plate 27 that allows downward flow is provided between the second tank 26 and the second partition plate 9. The liquid overflows into the cold liquid discharge tank 28 provided at the top, and new liquid overflows from the hot liquid supply tank 29 provided at the top of the third partition plate 10. A third tank 30 is formed between the third partition plate 10 and the fourth partition plate 11, and this third tank 30 and the first,
The second tanks 24 and 26 are in the heating process (B). A fourth tank 31 is formed between the fourth partition plate 11 and the fifth partition plate 12, and a fifth tank 32 is formed between the fifth partition plate 12 and the sixth partition plate 13. C). 6th partition board 13
A sixth tank 33 is formed between the third partition plate 14 and the seventh partition plate 14, and a third partition plate 34 that allows downward flow is provided between the sixth tank 33 and the seventh partition plate 14. Liquid discharge tank 3
5, and new liquid flows to the seventh partition plate 1.
The liquid overflows from the cold liquid supply tank 36 provided at the top of the cooling liquid.

A seventh tank 37 is formed between the seventh partition plate 14 and the eighth partition plate 15, and in the middle there is a fourth partition plate 38 that allows downward flow.
Further, surplus liquid overflows into a surplus liquid tank 39 provided in the middle of the seventh partition plate 14, and new liquid overflows from a reservoir tank 40 provided at the upper part of the eighth partition plate 15.

The sixth and seventh tanks 33 and 37 serve as a cooling stage (9).
An eighth tank 4 is provided between the eighth partition plate 15 and the ninth partition plate 16.
1 is formed, and the liquid in this eighth tank 41 is pumped to the second pump 42.
The hot water is sent to a cleaning spray device 44 via a pipe 43 having a hot water bath. A ninth tank is formed between the ninth partition plate 16 and the other end outer plate 17, and the liquid in this ninth tank 45 is sent to a rinsing spray device 48 via a pipe 47 having a third pump 46. . 49 indicates a spray device for rinsing with fresh water supply.

The eighth and ninth tanks 41 and 45 become the cleaning and rinsing process (E), and the downstream part becomes the draining process (F). The hot liquid discharge tank 35 and the hot liquid supply tank 29 communicate with each other through a hot liquid transport pipe 50, and the cold liquid discharge tank 28 and the cold liquid supply tank 36 communicate with each other through a cold liquid transport pipe 51.

Note that the cold liquid transport pipe 51 is provided with a fourth pump 52 for eliminating a liquid level difference and a straight 53 for removing dirt. A fifth pump 55 is provided in the discharge pipe 54 from the surplus receiving tank 39, and the discharge pipe 54 is opened above between the first partition plate 25 and the second partition plate 9 in the first tank 24. do. A double bottom plate 56 is provided below the bottom plate 6, and a waste heat passage 57 is formed in both 9 and 56. Waste heat 58 generated from other equipment, such as beer brewing, is supplied to this waste heat flow path 57 and used for heating or heat retention, thereby saving energy. Note that the waste heat flow path 57 is formed in a zigzag shape by the partition plate 59. 6*“0 is the outlet of the waste heat 58.

In the above bottle washing machine, the temperature and caustic concentration in each tank are as shown in the table below. As can be seen from Table 1, the second
Tank 26 and sixth tank 33 have the same caustic concentration of 3%,
Also, the temperature is 65°C and 70°C, which is a 5°C difference.

Moreover, in the second tank 26, due to heat exchange with the low-temperature bottle, the caustic liquid changes to a lower temperature than the 65th tank, and the 6th tank
In tank 33, the temperature reaches 70'C due to heat exchange with the high temperature bottle.
There is a shift to higher temperature caustic fluids. Therefore, the low-temperature caustic liquid in the second tank 26 overflows into the cold liquid discharge tank 28, and is transferred to the fourth pump 52 and the strainer 53.
By transporting the cold liquid to the cold liquid supply tank 36 via the cold liquid transport pipe 51 having The temperature of the caustic liquid in the tank 33 can be controlled to around 70°C. In addition, the high temperature caustic liquid in the sixth tank 33 is caused to overflow into the hot liquid discharge tank 35, and this is transferred to the hot liquid transport pipe 5.
0 to the hot liquid supply tank 29, and from there to the second tank 2.
6, the high temperature caustic liquid will be mixed into the caustic liquid which tends to be low, and the second
The caustic liquid temperature in tank 26 can be controlled near 65°C. Due to these, the heat absorption of the bottle moving from the first tank 24 to the second tank 26 is 65°C - 55°C = 10'C1, while the heat radiation of the bottle moving from the fifth tank 32 to the sixth tank 33 is 800
Since C-700C=10'C and heat exchange corresponding to 10'C is performed, thermal balance can be maintained. In this way, by sending the high temperature liquid that was conventionally discharged from the sixth tank 33 to the second tank 26, the amount of heating in the second tank 26 can be significantly reduced compared to the conventional one, and the heater can be made smaller. Note that the second partition plate 27 provided in the second tank 26 serves as a guide for air, and at the same time, the second partition plate 27 provided in the second tank 26
The high-temperature liquid received from the tank is guided downward from above and then circulated upward, distributing heat evenly within the tank. The eighth partition plate 34 provided in the sixth tank 33 also has a similar effect. Note that the liquid circulation in the second and sixth tanks 26 and 33 is performed in opposite directions in the direction of movement of the bottle. 1st tank 2
The same can be said about the hot water (heated water) in tanks 4 and 7 37 since the caustic concentration is 0%, but other cases are shown in the examples. That is, the seventh temperature
Instead of discharging hot water from the tank 37 as in the conventional case, the surplus receiving tank 39
This overflow is supplied from above to the first tank 24 via a discharge pipe 54 having a fifth pump 55, thereby saving energy. As a result, the amount of heating of the first tank 24 can be reduced compared to the conventional method, and the capacity of the heater can be reduced. Furthermore, since clean hot water is sent from the seventh tank 37, there is an advantage that the first tank 24 is kept clean for a long time without becoming contaminated. Conventionally, the dirty hot water in the first tank 24 was discharged, but according to the present invention, the first partition plate 8 is caused to overflow, the water is stored in the receiving tank 19, and the water is injected from the spray device 22. This means that the previously performed prewashing can now be performed as preheated washing.

The provision of the partition plates 25 and 38 in the first tank 24 and the seventh tank 37 is intended to provide the same effect as the second partition plate 27 and the third partition plate 34. The overflow system is used for the discharge tanks 28, 35, supply tanks 29, 36, surplus liquid tank 39, retention tank 40, etc. to flow the caustic liquid or hot water evenly over the width of the tank. This is to distribute the liquid across the tank and to reduce the amount of liquid that adheres to the "bottle" and tends to migrate to the adjacent tank. As described above, according to the present invention, the "bottle" passes from the large tanks 24, 26, 32, 33 on the side of the bottle feeding section 4 to the small tanks 28, 29, 35, 36 to the adjacent bottle discharging section. When the bottle is fed into the large tank 26, 30, 33, 37 on the 5 side, the drops from the bottle fall into the small tanks 28, 29, 35, 36 mentioned above.

Therefore, the large tanks 24, 26, 32 on the side of the bottle supply section 4,
The liquid in 33 and the large tank 26, 30, 33 on the side of the discharge bottle part 5
, 37, and the concentration of the caustic liquid is not easily reduced or the hot water is not easily cooled. In addition, liquid adheres to the "bottles" being transported, and as they head towards the discharging bottle section 5, the adhering liquid tends to transfer to the adjacent tanks; 4
1, 45 and small tanks 28, 29, 35, and 36 are configured so that the liquid therein can overflow toward the bottle supply section 4 and into the adjacent tank. It is possible to reduce the migration of liquid and reduce the amount of liquid replenishment. Also, the heating process (
The relatively low temperature liquid in the small tank 28 of B) is pumped through the pump 5.
By mixing it into the relatively high temperature liquid in the small tank 36 in the cooling step (D) according to 2, it is possible to prevent the relatively high temperature liquid from becoming higher than a predetermined temperature, and Conversely, by mixing the relatively high temperature liquid in the small tank 35 in the cooling process 1) into the small tank 29 in the heating process (B) through the hot liquid transport pipe 50, the relatively low temperature liquid can be mixed into the small tank 29 in the heating process (B). This can prevent the temperature from dropping below a predetermined level. Furthermore, the entire device can save thermal energy.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with FIG. 1 being a longitudinal cross-sectional view and FIG. 2 being a cross-sectional view of a waste heat flow path section. 3...Washing bottle route, 4...Bottle feeding section,
5... Discharge bottle part, 6... Bottom plate, 7...
...One side outer plate, 9 to 16...Division board, 17...
...Other side outer plate, 19, 24, 26, 30, 31, 3
2, 33, 37, 40, 41, 45...tank, 2
2... Spray device, 25, 27, 34, 38...
...Partition plate, 28...Cold liquid discharge tank, 29.
...Hot liquid supply tank, 35...Hot liquid discharge tank,
36... Cold liquid supply tank, 39... Surplus receiving tank, 40... Retention tank, 50... Hot liquid transport pipe, 51... Cold liquid transport pipe, 54...Discharge pipe, 57...Exhaust heat flow path.

Claims (1)

[Claims] 1 Between the bottle feeding section 4 and the bottle discharging section 5, a large number of partition plates 7 to 17 perform a preliminary cleaning process (A), a heating process (B), a bottle soaking process (C), a cooling process (D), and a cleaning process. Rinsing process (E
) and one or more large tanks 19, 24, 26, 30 to 33, 37 constituting the draining step (F), respectively.
, 40, 41, 45 on the partition plates 9, 10, 13, 14 on the bottle supply section 4 side above the large tanks 26, 30, 33, 37 in the heating process (B) and cooling process (D). Small tanks 28, 29, 35, 36 are formed, and the above-mentioned large tank 1
9, 24, 26, 30-33, 37, 40, 41, 45
A predetermined one of the small tanks 28, 29, 35, and 36 is configured so that the liquid therein can overflow into the adjacent tank toward the bottle supply section 4, and the outer small tank 2
A cold liquid transport pipe 51 is provided to communicate between 8 and 36, a pump 52 is interposed in the cold liquid transport pipe 51, and a hot liquid transport pipe 50 is provided to communicate between the small inner tanks 29 and 35. A bottle washing device that saves thermal energy.