JPS5966864A - Continuous sterilization method - Google Patents

Abstract

PURPOSE:To carry out the continuous sterilization, in high efficiency, by supporting a polyethylene pouch containing the sterilizing material with the protrusions attached to the inner wall of a porous conveyor vessel, thereby forming a gap between the wall of the vessel and the pouch, and circulating the conveyor vessel through the cooling chamber and a high-pressure sterilization tank by a chain conveyor. CONSTITUTION:In the stop stage of the intermittently driven front wheel, the cartridge 19 containing a polyethylene pouch A containing the material to be sterilized is pushed into the retainer 17 at the zone of the front driving wheel 8. A gap to pass a liquid is formed between the inner wall of the retainer 7 and the cartridge 19. The intermittently driven wheel 8 is rotated, and the retainer 17 is transferred continuously through the cooling chamber 3 into the high-pressure sterilization tank. After the sterilization at <=130 deg.C, the material is transferred through the cooling chambers 3, 2 to the intermittently driven rear wheel 8.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for efficiently sterilizing pouches using polyethylene as containers.

Conventionally, the processed material is stored in a porous transport container and then cooled. Transfer to a room or boiling water room and treat with boiling water ν Heat sterilize and cool.

It is known that cooling is done by adding water, but the material to be processed in the transport container comes into contact with the inner wall of the transport container, and the flow of hot water and cooling water is rapid and even (1) and spreads over all parts of the material to be processed. If you are trying to sterilize with 130U and the heat sterilization and cooling efficiency are poor (((11) is the temperature of about 150C in the high-pressure sterilization tank, boiling water is injected). It houses the proboscis (polyethylene).
bag, polyethylene) 8? :;) When a 1:1 container is used in a bag, the heat-resistant polyethylene (melting temperature 135C) will melt. 7.) There are defects 4).

The present invention improves these deficiencies by using a polyethylene bow that is 1.+tl-℃ provided on the inner wall of a porous conveyance container to accommodate the processed material with In protrusions.
A liquid circulation gap is formed between the inner wall surface of the transport container and the polyethylene pouch, and the transport chain of the transport container circulates and transfers the cooling liquid in the cooling tank and the heated liquid of 1300 or less in the high-pressure sterilization tank to heat and heat the processed material. The gist of this is cooling. .

Method of the present invention 1'Transfer/container r7Q'During transfer''Heat and IJ'?
The liquid flows through the liquid distribution gap formed by the protrusions on the inner wall of the conveying container □ uniformly and quickly heat sterilizes and cools each buried object. In addition, the protrusions can reliably prevent movement such as displacement within the transport container during the transfer of the processed material. .

In addition, the method of the present invention uses boiling water in a heat sterilization tank to heat resistant polyethylene, which is a type of material for pouches, at a temperature of 13
Since it is set at 0C, for example, if a polyethylene bag is used as a pouch, the bag will not become soft and brittle during heat sterilization (and there will be no porous mesh pattern on the bag surface), which will improve the quality of the processed product. It can be heat sterilized without reducing the

Furthermore, when a dish-shaped polyethylene container or the like is used, it is possible to eliminate the porous mesh pattern on the surface of the lid (often made of polyethylene), as well as the sulcus.

The details of the method of the present invention will be specifically explained based on examples.
A high-pressure sterilization tank (1) containing 130C hot water and a cooling tank installed adjacent to it (inside 21+31 are drive wheels F
A pair of left and right transfer chains (
6) A pair of intermittent drive wheels (81 (81) are attached to the transfer chain (6H61 is partially installed on the frame (7) on the side of the cooling tank (2) at the front and rear). Front and rear and both: Suspended with slack between them, intermittent drive wheels (81 (81) rotate intermittently in synchronization with 4-, and transfer chains (6) (6) intermittently @ l!I
Drops (131 (81 part) ℃ is intermittent. Figure 2 is an example of an intermittent drive mechanism ÷ there is an intermittent drive wheel (8)
A small wheel (11) which is prevented from reversing by a locking pawl (10) is provided on the shaft (9) of 8), and a small wheel (11) is provided on the shaft (9) of the driving wheel (4). The feed pawl (15+) of the leading cam (feed lever 04 operated by 131) is engaged, and the operation of the intermittent drive wheels (8) (8) is synchronized with the drive wheel (4) for intermittent rotation. It is supposed to be done.
□Also, the pair of left and right transfer chains (6) 1
B) A porous glue retainer (171) whose front part is opened through several pieces a61 is installed between V- and the retainer a'
n indicates the pouch containing the processed material, and °C indicates the melting temperature 1
A cartridge a9 containing a 35C heat-resistant polyvinyl ethylene bag and having a large number of through holes 08 in the wall surface is removably fitted through the opening 6, and the retainer -αη
There are recessed holes on both ends of the board.
(2T+ and 2T+ are respectively provided, the locking claws are pivoted on the support shaft I21 and are urged inward by the release 4s +221). The cartridge is engaged with the locking hole (2(1)) and the cartridge 0g is integrally connected to the retainer (1, 71).

The cartridge H may be a single box type with an open top, but as shown in the drawing, a plurality of small cartridges V may be piled up to form one cartridge. is punched out on the inside to form a raised protrusion (end) to support the polyethylene bag and form a liquid flow path (at) between the cartridge wall surface and the cartridge wall. In the case where the pouch (4) containing the processed material is directly accommodated in the retainer, the VC can also be provided by forming a raised protrusion (251) on the inner wall of the retainer.

Further, in the embodiment of the present invention, the hole □□□ in the ceiling wall surface of the retainer tip face is also provided with an inwardly raised protrusion (5), and the retainer (171 and cartridge 09
.

The lower bottom of the cartridge is shaped like a ship's bottom to facilitate the insertion and removal of the cartridge (191).

(391 is the airtight opening/closing machine groove of the high-pressure sterilization tank (1), (3G is the cartridge pusher? -11 dimension is the locking claw (23+ buoy guide).

Therefore, when the front intermittent drive wheel (8) is stopped intermittently, the push button (BO)
When the cartridge 091 with a bag size of 0υ is pushed into the retainer (17), the locking claw 03+ of the retainer (17) engages with the locking hole U41 of the cartridge (1!ll), and the two are integrally connected. be done.

In this way - (retainer - (cartridge 0!
□When I) is installed, the drive wheel (8) rotates, and after that, the reso-ner (1'n) is continuously transferred and enters the cooling tank (3) into the high-pressure sterilization tank fi+ at ℃ below 1300. After being sterilized at the set temperature, it is guaranteed to be -7- (1 flight + 31
F21 is transferred to the rear intermittent drive wheel (8) through ``C'' and comes to ℃.Then, the locking pawl t231 is released from the locking hole (241) by the release guide 13+1 and stops intermittently, so the cartridge (1'') is moved to the retainer. -071, the retainer-On is again circulated to the front intermittent drive wheel (8).

However, each porous transport container (retainer -) (171 is the heating liquid and cooling tank (130c) of the high pressure sterilization tank txt (
2) When passing through the cooling liquid in (3), the processed material is
As a pouch containing 7 items (7> polyethylene bag (Al is supported by a cartridge + 14N 1% g-Yaki 1251, heating liquid and cooling oil are placed in a cartridge (19)
The through hole 118i is formed by the raised protrusion (211), and the filtrate passes through the filtration liquid flow path, and the polyethylene bag tAl is quickly and evenly heat sterilized or cooled for 4 hours. The cooling process is carried out efficiently and the temperature of the 1111 degrees Celsius (including polyethylene bag) in the swallow liquid is always below the temperature of the polyethylene (the temperature is lower than the side heating temperature, so it does not become soft). Since the outside surface of the polyethylene bag (N) is cold (inside the general shipping container), no mesh pattern will form. In general transport containers, it is possible to sterilize the processed material with good quality by reliably preventing piles and sterilizing 1 inch of polyethylene bags.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of the present invention, Fig. 2 is a front view of the main part, Fig. 3 is a partially cutaway 1'H11 view of the main part, and Fig. 4 is a cross-sectional plan view of the same. , FIG. 5 is an exploded perspective view. (1)... High-pressure sterilization tank, [2+ (31... Cooling tank, (6)... Transfer chain, 0! To... Cartridge, I25)... Raised protrusion, (4)... Polyethylene bag, (al...Liquid distribution channel. Patent applicant: Kewpie Co., Ltd.

Claims (1)

[Claims] The polyethylene pouch containing the processed material is supported by projections provided on the entire surface or a part of the inner wall of the porous transport container, and a liquid flow gap is formed between the inner wall surface of the transport container and the polyethylene pouch, and the A continuous sterilization method characterized by heating and cooling the processed material by circulating the transport container through a transfer chain through a cooling liquid in a cooling tank and a heating liquid of 130 tons in a high-pressure sterilization tank.