JP2001038491A - Hydroextractor of food waste - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dewater wastes of food such as vegetables and fruits as much as possible. SOLUTION: This device comprises an insertion port 7 and a discharge port 8 of wastes of foods such as vegetables and fruits, a casing 1 which is higher on a downstream side (discharge port) than on the upstream side (insertion port) and provided with drainage holes 9, 10 and 11, two screw shafts which are accommodated in the casing 1 and arranged in a manner that pitch of the screw is short on the downstream side to be an unequal pitch and is narrow on the downstream side, a resistant plate which blocks a passage section of the casing and opens a slight passage, and a cutter which rotates along with rotation of the screw shafts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to food waste such as sprouts, onions and other vegetables, fruits and supermarkets, residue from fresh stands such as department stores, restaurants and hotels, and food processing such as import and export. The present invention relates to a dehydrator for goods.

[0002]

2. Description of the Related Art Conventionally, food waste such as vegetables and fruits such as onions and sprouts has been incinerated and treated. As for the screw type dehydrator, a single-screw dehydrator has been filed for many applications. However, cells of tangible vegetables and fruits are hardly crushed, and moisture and stickiness adhere to the screw, and the dehydration effect is small. Furthermore, there is a dehydrator called a screw press that practically uses a plurality of screw shafts. However, since it is not a dehydrator for vegetables and fruits having a large amount of water, it is not sufficiently squeezed.

[0003]

Food waste such as vegetables and fruits such as sprouts and onions contain a lot of water. In particular, sprouts are 98% water. Therefore, incineration costs are incurred, and the temperature of food waste does not rise during incineration, and there is a problem of dioxin. Therefore, it is necessary to reduce the weight and volume of incineration as much as possible. This requires dewatering from waste. In addition, although the food itself does not contain dioxin, dioxin is generated when the food is burned together with other waste such as a plastic bag containing dioxin. At this time, it is necessary to dehydrate water that prevents a rise in temperature from the food.

[0004]

DISCLOSURE OF THE INVENTION In view of the above circumstances, the present invention aims to dewater food wastes such as vegetables and fruits as much as possible, and to input and discharge wastes of foods such as vegetables and fruits. And a casing having a downstream side (discharge port) high, an upstream side (input port) low and a drain hole provided at the bottom, and a casing accommodated in the casing, wherein the pitch of the screw is short and the downstream side is unequal pitch. Two screw shafts arranged so that the downstream side becomes narrower, a resistance plate that closes the passage cross section of the casing and opens a slight passage, and a food waste having a cutter that rotates with the rotation of the screw shaft. A dehydrator was used.

[0005] Further, the present invention provides a food waste dehydrator in which two similar screw shafts are further disposed upstream of the two screw shafts in order to further enhance the dewatering effect. Furthermore, the present invention provides a food waste dehydrator in which a notch is cut in a screw outer peripheral edge of a screw shaft in order to enable crushing of food waste such as vegetables and fruits.

Furthermore, in the present invention, the amount discharged from the second chamber and the amount sent to the downstream side are adjusted by controlling the rotation of the screw shaft in the third chamber to enhance the compression restriction effect.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on specific embodiments shown in the accompanying drawings. FIG. 1 is a side view showing the overall outline. The casing is set high on the downstream side and low on the upstream side (inclination angle, for example, 30 °) in order to facilitate drainage, and is held by the machine frame. It contains screw shafts of irregular pitch for crushing, compressing, and cutting food waste such as vegetables and fruits.

The first casing 1, the second casing 2, and the third casing 3 constitute a first chamber 4, a second chamber 5, and a third chamber 6, respectively, in this order from the upstream side. First room 4
A hopper 7 for supplying food wastes such as vegetables and fruits is provided on the upstream side, and a discharge pipe 8 for discharging crushed, compressed and cut food waste is provided on the downstream side of the third chamber 6.

The lower part of the inclined surface of the first chamber 4 is opened, and the punching metal 9 having a large number of holes is opened. The lower part of the inclined surface of the second chamber 5 is opened, and the punching metal 10 is inserted. Open the lower part of the inclined surface of the punching metal 11
Are stretched respectively. The squeezed drainage passes through a punching metal 9, 10, 11, and a tank 13 placed on a machine frame 12.
By the drain receiver 14.

The two screw shafts arranged in the first chamber 4 and the second chamber 5 are driven by a motor 15, and the screw shaft arranged in the third chamber 6 is driven by a motor 16.
Reference numeral 17 denotes a control panel, reference numeral 18 denotes a coupling, and reference numeral 19 denotes a gear. Next, the first chamber 4 and the second chamber 5 will be described with reference to FIGS.

In the first chamber 4 and the second chamber 5, a screw shaft 21 and a screw shaft 22 are arranged side by side, and the downstream side has a narrow width (for example, the central axis is set to 0.5 ° for each of the screw shafts 21 and 22). (Turn inward). Screws 23 formed spirally around a shaft 27 of the screw shaft 21 and screws 24 formed spirally around a shaft 28 of the screw shaft 22 are alternately arranged. Reference numerals 25 and 26 denote drain boards. With one screw shaft, the conveyed object may adhere to the screw and may not be sufficiently conveyed. However, if the screws are alternately arranged on the two screw shafts, the conveyed object may adhere to the screw. Never.

The motor 15 rotates the screw shaft 21 inward. The gear 29 fixed to the shaft 28 is shifted from the gear 19 fixed to the shaft 27 of the screw shaft 21.
, And the screw shaft 22 also rotates inward. When sprouts are fed from the hopper 7 between the screw shaft 21 and the screw shaft 22, the sprouts are conveyed to the upstream side. It goes without saying that the screw shafts 21 and 22 have a conveying function, but the pitches of the screws 23 and 24 of the screw shafts 21 and 22 are shortened on the downstream side to compress and narrow the sprouts to be conveyed. Screw shaft 21
3, the pitch of the screws 23 and 24 is, for example, 90 m in order from the downstream side to the upstream side.
m, 70 mm, 50 mm, 40 mm, and 30 mm.

Screws 23 and 24 having a pitch of 90 mm
As shown in FIG. 4, as shown in FIG. In particular, it is effective for crushing round objects such as onions. At the downstream end of the first chamber 4, as shown in FIG. 5, a resistance plate 33 having a small passage hole 32 in which the flow path cross-sectional area of the first chamber 4 is reduced is provided.

At the downstream end of the first chamber 4 of the screw shaft 21, a cutter 34 shown in FIG.
The cutter 35 shown in FIG. 7 is provided at the downstream end of the second first chamber 4. Immediately before being compressed and passing through the small passage hole 32 of the resistance plate 33, the sprouts are further finely cut. In the first chamber 4, sprouts are crushed, squeezed, and cut.

As shown in FIG. 2, a resistance plate 36, a cutter 34 and a cutter 35 are provided at the downstream end of the second chamber 5 as in the first chamber 4, and reference numeral 37 denotes a small passage hole. The sprouts flowing into the second chamber 5 through the small passage holes 32 are squeezed and cut. The resistance plate 36 has a small passage hole 37 and holds a bearing 45 of the shafts 27 and 28 of the screw shafts 21 and 22 in FIG. In addition, bearing holes for the screw shafts 38 and 39 of the third chamber 6 described later are separately provided.

The third chamber 6 is shown in FIGS. 8, 9 and 10.
The screw shaft 21 and the screw shaft 22
The smaller diameter screw shaft 38 and the screw shaft 39 are arranged in parallel in the third casing 3. The screw shaft 39 is connected to the chain 51 by the motor 16.
Is driven inward by rotating the fixed sprocket 40 via the. A gear 41 and a gear 42 are fixed to the screw shaft 39 and the screw shaft 38, respectively, and the two are meshed, so that the screw shaft 38 is rotated inward.

At the downstream end of the third chamber 6, a resistance plate 43 having a small passage hole is provided. In the third chamber 6, as shown in FIG. 11, the shaft center 44 of the screw shaft whose upstream end protrudes is inserted and fixed to a bearing 52 provided separately from the resistance plate 36. The axis 44 of the screw shaft protruding from the upstream end
To the bush 45 of the second chamber 5 to be fixed.

The sprouts flowing into the third chamber 5 through the small passage holes of the resistance plate 36 in the second chamber 5 are compressed and squeezed by the rotating screw shaft 39 and the screw shaft 38 to reduce the volume, thereby reducing the volume of the resistance plate 43. Through the small passage hole, the discharge pipe 8
Is discharged through. The throttling effect can be enhanced by adjusting the amount discharged from the second chamber 5 and the amount sent downstream, that is, controlling the rotation of the screw shafts 38 and 39 of the third chamber 6.

Note that a brush may be provided to remove waste deposits discharged from the lower surfaces of the punching metals 9, 10, and 11. According to the results of experiments with this dehydrator using sprouts, the weight became 30% and the volume became 1/8.
The volume of other vegetables decreased by 1/7 to 1/6.

[0020]

As described above, the present invention has an input port and an output port for food waste such as vegetables and fruits, with the downstream side (discharge port) being high and the upstream side (input port) being low. A casing provided with a drainage hole, two screw shafts housed in the casing, and arranged such that the pitch of the screws is short and unequal on the downstream side and narrow on the downstream side, and closes the passage cross section of the casing, A resistance plate with a slight passage open,
Since this is a food waste dehydrator having a cutter that rotates with the rotation of the screw shaft, it is possible to dehydrate food waste such as vegetables and fruits as much as possible.

In the present invention, two similar screw shafts are further arranged upstream of the two screw shafts. The screw shaft receives the amount sent out from the second chamber, and is compressed by controlling the rotation of the difference in mass, so that the dewatering effect can be further improved. Further, in the present invention, a notch is formed in the outer peripheral edge of the screw of the screw shaft, so that it is possible to dig and crush food waste such as vegetables and fruits.

Furthermore, the present invention provides a dewatering method for food waste in which the amount discharged from the second chamber and the amount sent downstream are controlled by controlling the rotation of the screw shaft in the third chamber to enhance the compression-throttling effect. Machine.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of a food waste dehydrator according to the present invention.

FIG. 2 is a plan view of a first chamber and a second chamber according to the present invention.

FIG. 3 is a schematic side view of FIG. 2;

FIG. 4 is a diagram showing an example in which a notch is cut in a screw of a screw shaft.

FIG. 5 is a front view of the resistance plate at the downstream end of the first chamber of the present invention.

FIG. 6 is a front view of the cutter according to the present invention.

FIG. 7 is a front view of another cutter according to the present invention.

FIG. 8 is a plan view of a third chamber of the present invention.

FIG. 9 is a front view of FIG. 8;

FIG. 10 is a side view of FIG. 8;

FIG. 11 is a front view of a resistance plate.

[Explanation of symbols]

 7: Hopper (example of charging port) 8: Discharge pipe (example of discharging port) 9, 10, 11: Punching metal (example of drain hole) 1: First casing 2: Second casing 3: Third casing 23: 24 Screw 21 ・ 22 ・ 38 ・ 39 ・ ・ ・ Screw shaft 33 ・ 36 ・ 43 ・ ・ ・ Resistance plate 34 ・ 35 ・ ・ ・ Cutter 31 ・ ・ ・ Notch

Claims (4)

[Claims] Claims: 1. A casing having an inlet and an outlet for food waste such as vegetables and fruits, having a downstream side (an outlet) higher and an upstream side (an inlet) lower and having a drain hole, and a casing. The two screw shafts arranged so that the pitch of the screws is shorter and unequal pitch on the downstream side and narrower on the downstream side, and the resistance plate that closes the passage cross section of the casing and opens a slight passage , A food waste dehydrator having a cutter that rotates with the rotation of the screw shaft. 2. The food waste dehydrator according to claim 1, wherein two similar screw shafts are further arranged upstream of the two screw shafts. 3. The food waste dehydrator according to claim 1, wherein a notch is formed in the outer peripheral edge of the screw of the screw shaft. 4. The food waste according to claim 1, wherein the amount discharged from the second chamber and the amount sent downstream are controlled by controlling the rotation of the screw shaft in the third chamber to enhance the compression-throttling effect. Dehydrator.