JPH0724091U - Closed juicer - Google Patents

Abstract

(57) [Summary] [Purpose] In addition to preventing oxidative discoloration due to enzymes and changes in natural flavors by blocking the outside air, an antioxidant such as ascorbic acid was used to block the outside air by using an inert gas such as nitrogen gas. Produces natural sap that does not contain. [Composition] A closed crushing device that cuts and crushes fruits from the outside air, a pump that cuts and transfers crushed substances from the outside air, and a squeezed juice and squeezed juice between belts that move crushed substances between press rollers. A closed squeezing chamber equipped with a belt press for separating into lees and an inert gas supply device for supplying an inert gas such as nitrogen gas to the closed squeezing chamber and the closed crushing device are provided. [Effect] Therefore, the whole squeezing device can be sealed,
The inert gas supply device ensures the tightness and facilitates the tightness control.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a closed squeezing device for producing a fruit juice that is oxidatively discolored by the outside air.

[0002]

[Prior art]

 When crushing and squeezing fruit, antioxidants such as ascorbic acid (vitamin C) are used to prevent oxidative discoloration due to the action of polyphenol oxidase contained in the fruit itself. However, this ascorbic acid is expensive, and there is a problem that the natural flavor is impaired by the chemical reducing action of ascorbic acid.

[0003]

[Problems to be solved by the device]

 Therefore, the present invention prevents oxidative discoloration due to enzymes and changes in natural flavors by blocking the outside air, and uses an inert gas such as nitrogen gas to block the outside air and does not contain an antioxidant such as ascorbic acid. It is an object of the present invention to provide a closed squeezing device capable of producing natural juice.

[0004]

[Means for Solving the Problems]

 That is, the closed squeezing device according to the present invention comprises a closed crushing device that cuts and crushes fruits from the outside air, a pump that cuts off and transfers crushed material crushed by the closed crushing device, and a pump. To a closed squeezing chamber equipped with a belt press for squeezing the transferred crushed material between belts that move between press rollers to separate squeezed juice and squeezed lees, to the sealed squeezing chamber and the sealed crushing device. And an inert gas supply device for supplying an inert gas such as nitrogen gas.

[0005]

[Action]

 Therefore, according to the above configuration of the present invention, by shutting off the crushing device, the transfer pump and the belt press from the outside air, the entire squeezing device can be sealed, and the inert gas supply device ensures the sealing. At the same time, the sealed management becomes easy.

[0006]

【Example】

 The present invention will be described below with reference to embodiments of the drawings. This embodiment is a closed juice extractor for producing apple juice, and although not shown, apples are carried to the hopper 1 by a belt or the like. The apple is crushed by its own weight from the hopper 1 through the closed rotary valve 2 to the crushing device 3. Conventionally, a crusher such as a hammer mill is usually used for crushing, but since it is not a closed type, an antioxidant such as ascorbic acid that prevents discoloration due to oxidation during crushing is used at a rate of about 1 kilogram per ton of apples. A 10% solution is injected by a metering pump.

The apples crushed by the crushing device 3 are transferred to the feed box 7 of the belt press 6 through the pipe 5 by the sanitary type mono pump 4. The belt press 6 is located in the closed squeezing chamber 8, and the apples crushed between the belts 10 and 11 moving between the multi-stage press rollers 9 are squeezed and separated into squeezed juice and squeezed lees. The squeezed juice is collected in the lower saucer 12, is carried out of the closed squeezing chamber 8 through the pipe 13, and is sent to the collecting tank 14. The squeezed meal is scraped off by a scraper 15, and is carried out to the outside of the closed squeezing chamber 8 via a pipe 17 by a mono pump 16 with a stirrer provided at the lower part and sent to a squeezed meal storage tank (not shown). The belt press 6 is provided with a belt cleaning water device 18 at the lower part, and cleans the belts 10 and 11 moving between the press rollers 9.

The inert gas supply device 19 supplies nitrogen gas to the crushing device 3 and the closed squeezing chamber 8 to squeeze and crush the crushed apples that do not turn brown without injecting ascorbic acid (vitamin C). It can be separated into juice and juice residue. The pipes 5, 13, 17 and the like are attached to the closed squeezing chamber 8 in a sealed structure via a gasket or a gland packing.

[0009]

[Effect of device]

 As is clear from the above description, according to the configuration of the present invention, the squeezing device, the transfer pump, and the belt press can be sealed from the outside air to seal the entire squeezing device, and the oxidative discoloration and natural discoloration due to enzymes and the like In addition to preventing flavor changes by shutting off the outside air, the inert gas supply device ensures the tightness and simplifies the tightness control, and uses ascorbic acid, etc., with an inert gas such as nitrogen gas to shut off the outside air. It is possible to provide a practical closed squeezing device, such as the production of natural juice containing no antioxidant.

[Brief description of drawings]

FIG. 1 is an overall view of a closed juice extractor showing an embodiment of the present invention.

[Explanation of Codes] 2 Closed Rotary Valve 3 Crusher 4 Mono Pump 5 Pipe 6 Belt Press 8 Closed Juice Chamber 9 Multi-stage Press Roller 10 Belt 11 Belt 13 Pipe 17 Pipe 19 Inert Gas Supply Device

Claims (1)

[Scope of utility model registration request] 1. A closed crushing device that cuts and crushes fruits from the outside air, a pump that transfers crushed products crushed by the closed crushing device to the outside air, and a press that presses the crushed products transferred by the pump. A closed squeezing chamber equipped with a belt press for squeezing between belts moving between rollers to separate squeezed juice and squeezed lees, and an inert gas such as nitrogen gas to the closed squeezing chamber and the closed crushing device. A closed squeezing device, which is provided with an inert gas supply device for supplying.