JPH0670731A - Food dryer - Google Patents

Abstract

PURPOSE:To provide a food dryer ensuring foods to be easily dried and unloaded by eliminating such a drawback that foods dried by conventional food dryers taking advantage of centrifugation are stuck to the inner wall of the dryers and it is troublesome for the foods dried to be unloaded. CONSTITUTION:The inside of a rotator 12 to hold foods in is equipped with a device 14 vertically movable under contact with the inner wall of the rotator 12, and such a guide plate 18 as to spirally descend so as to be in contact with the inner wall from the periphery of the upper end of the rotator 12. and reach a food outlet 19 is also set up. Thereby, dried foods left, so far, to adhere to the inner wall after centrifugation are released from the inner wall by lifting the device 14 along the inner wall, made to descend along the guide plate 18, and unloaded via the food outlet out of the dryer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing a dry food by removing oil or the like from a food containing oil or water, and more particularly to an apparatus for removing the oil or the like contained in food by centrifugation. The present invention relates to a food drying device that allows a dried food to be easily taken out from the inside of the device when the dried food is manufactured.

2. Description of the Related Art Conventionally, it has been attempted to produce a dried food product by removing water by using centrifugal separation or the like for dehydration of food products. In recent years, in addition to this, meat, fish, vegetables and the like have been fried using edible oil and provided to the market as dried food. Since this dried food has a taste different from that of untreated food and contains almost no water, it is easy to maintain freshness, and has attracted attention as a product that meets a wide range of consumer needs.

In order to produce these dried foods, an intermediate step of drying foods containing oil or water to remove the oils or the like is required. Conventionally, centrifugal separation has been used to remove the oil and the like. The removal of oil by centrifugation does not affect the food itself, and can process a relatively large amount of food at once, and is widely used as a simple and inexpensive food drying method. However, in this food drying centrifuge, the inner surface of a normal basket-shaped container, in particular, the inner surface to which centrifugal force is applied, in which the food before drying is housed and the food in which the oil content and the like have been removed by centrifugation is stored is It has a drawback that it is attached and cannot be easily taken out of the container. Even if the centrifugation process itself can be easily performed, if a long time is required for the removal work, the centrifugation method, which is an excellent food drying method, will be a complicated and troublesome method like the methods other than the centrifugation method.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks of the centrifugal separation method, that is, the dried food adheres to the inner wall of the container of the centrifuge and is difficult to take out. It is an object of the present invention to provide a food drying device that can be used as a method.

SUMMARY OF THE INVENTION The present invention is directed to a centrifuge body, a food inlet installed in the body, a rotating body concentrically housed in the centrifuge body and having an open upper surface, and the rotating body. An elevating body housed in the body so as to be able to ascend and descend while contacting the inner wall of the rotating body, and a guide plate that spirally descends from the peripheral edge of the upper end of the rotating body so as to contact the inner wall of the main body and reaches the food outlet. It is a food drying device characterized by being formed.

The present invention will be described in detail below. In the food drying apparatus according to the present invention, the food product to be dried is accommodated therein and is rotated to disperse oil or the like through the wall surface to the outside to dry the food product by the centrifugal force. The greatest feature is the installation of a lifting body that can move up and down while making contact. Further, in the present invention, a guide plate is installed on the upper edge of the rotating body so as to descend spirally and reach the food outlet.

In the food drying apparatus of the present invention, it is necessary to install an elevating body in the rotating body so that the elevating body can be moved up and down while contacting the side wall of the rotating body. This elevating body is located near the lower part of the rotator and prevents the food from falling down while the pre-drying food is supplied to the rotator and while the rotator is rotating and performing the centrifugal separation operation. . Further, since the peripheral portion of the elevating body is strongly pressed against the side wall of the rotating body and is easily worn, it is desirable that the elevating body is formed of a highly durable material such as polytetrafluoroethylene (trade name: Teflon). Further, it is more preferable to incline the upper surface of the lifting / lowering body toward the peripheral direction because when the lifting / lowering body reaches the upper edge of the rotating body, the dried food falls to the side and is guided to the food outlet. However, the upper surface of the elevating body may be formed flat, in which case the food on the elevating body is laterally guided by slightly rotating the rotating body. The guide plate of the food drying device of the present invention needs to be present over the entire circumference of the rotating body,
It has a function of guiding the dry food falling from the upper edge of the rotating body to the food outlet. Therefore, it is desirable to install the guide plate so that there is no space between the inner wall of the centrifuge main body and the outer wall of the rotor, and when there are other members between the rotor and the main body, almost all food products are It is installed spirally between the rotating body and the member or between the member and the main body so as to be guided to the food outlet.

[0006] By using the food drying apparatus of the present invention thus constructed, dried food can be manufactured and taken out of the apparatus as follows. That is, a food containing oil or the like is supplied from the food inlet into a rotating body having an elevating body positioned near the lower portion thereof, and the rotating body is rotated to remove the oil or the like by centrifugation. In this state, most of the dried food from which oil and the like have been removed adheres to the side wall of the rotating body. Then, when the elevating body is moved up along the side wall of the rotating body, the peripheral edge of the elevating body comes into contact with the food on the side wall to separate the food from the side wall surface and the food moves up together with the elevating body to rotate the rotating body. Reach the upper edge of. Since a spiral guide plate is installed at this upper edge, the food that reaches the upper edge of the rotating body falls by gravity and is guided to the guide plate, and further spirals on the guide plate by its own weight. It descends like a circle and reaches the food outlet. As described above, according to the food drying apparatus of the present invention, it is possible to automatically take out almost all of the dried food that is difficult to take out by the conventional food drying apparatus because it remains in the centrifuge rotor.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the food drying apparatus according to the present invention will be described in detail below with reference to the accompanying drawings, but the embodiment does not limit the present invention. 1 is a vertical cross-sectional view showing an embodiment of the food drying apparatus according to the present invention in which the lifting body is lowered, and FIG. 2 is a vertical cross-section of the food drying apparatus in FIG. 1 in which the lifting body is raised. It is a figure. On the disc-shaped bottom surface 1,
A lower bowl-shaped lid plate 5 is fixed to the upper flange 4 of a cylindrical body 3 which is vertically installed by fixing the lower flange 2 by bolting or welding, and the flange 6 is fixed by bolting or welding. The main body 7 is configured. A drainage basket 8 having an open top is concentrically provided in the cylindrical body 3 of the main body 7, and a drainage pipe 9 directed to the left side is provided at a lower edge portion of a side wall of the basket 8 to be drained. The liquid pipe 9 penetrates the cylindrical body 3 to the outside.

Inside the basket 8, both upper and lower surfaces are opened, an inward flange 10 is provided at a lower opening, and an outer edge of the upper opening is inclined toward the cylindrical body 3 side. A rotating body 12 formed of a porous body in which an auxiliary guide plate 11 is continuously provided is installed concentrically with the cylindrical body 3 and the cage body 8. In the state of FIG. 1, an elevating body 14 is installed in the rotating body 12 so that the bottom plate 13 thereof contacts the inward flange 10 of the rotating body 12, and the elevating body 14 is provided on the peripheral edge of the bottom plate 13. Is arranged so that the durable material 15 made of doughnut-shaped Teflon or the like contacts the inner surface of the rotating body 12. Inside the durable material 15, the tip end of an umbrella-shaped inclined plate 16 inclined outward is bent and positioned downward, and the bottom surface 1 and the bottom surface of the cage 8 are located in the center of the inclined plate 16. An elevating rod 17 that penetrates through the central portions of the bottom plate 13 and the lid 5 penetrates, and the elevating rod 17 allows the elevating body 14 to ascend and descend along the inner wall of the rotating body 12. A guide plate 18 having a spiral shape is connected to the auxiliary guide plate 11 (in the upper right peripheral portion of the rotating body 12 shown in the drawing), and the guide plate 18 is provided between the outer surface of the cage body 8 and the inner surface of the cylindrical body 3. The guide plate 18 descends one round on the outer surface of the cage 8 so as not to generate a gap with the cylindrical body 3
Is connected to the food outlet 19 formed on the right wall surface of the.
A food inlet 20 is formed slightly downward at a location on the left wall surface of the cylindrical body 3 slightly above the upper edge of the rotating body 12.

When the food drying device having such a structure is used, food can be dried as follows.
First, the food supply pipe 21 is inserted into the food inlet 20 so that its tip reaches the inside of the rotator 12, and the food before drying is rotator 17
Supply inside. Next, after appropriately closing the food introduction port 20, when the rotating body 12 is rotated, a centrifugal force is applied to the food in the rotating body 12 to attach the food to the inner wall of the rotating body 12, and the oil content or water content of the food. Is released from the holes of the rotating body 12 to the outside of the rotating body 12, and the dried food remains attached to the inner wall of the rotating body 12.

After stopping the rotation of the rotating body 12 in this state,
When an upward force is applied to the elevating rod 17, the elevating body 14 connected to the rotating rod 17 makes the durable material 15 contact the inner wall of the rotating body 12 and rises while peeling the food adhered to the inner wall. The food is carried to the upper edge of the rotating body 12 (see FIG. 2). In this case, since the inclined plate 16 of the lifting / lowering body 14 is tilted outward, the peeled foods are gathered on the peripheral edge of the upper / lowering body 14. An auxiliary guide plate 11 is continuously provided on the upper edge of the rotating body 12
Is inclined outward, the food on the periphery of the lifting body 14 falls into the gap between the cage 8 and the cylindrical body 3. Since the guide plate 18 is installed without any gap in the gap, the food falls on the guide plate 18, descends on the guide plate 18 in a spiral to reach the food outlet 19, and is dried. It is taken out as food. The temperature of the oil content in the food during centrifugation is 40-
The temperature is 50 ° C, and the temperature tends to be slightly low in order to perform sufficient centrifugation. In such a case, the food inlet
When high-temperature oil is supplied from 20 and centrifugal separation is carried out in the same manner, low-temperature oil is replaced with high-temperature oil, and dried food can be taken out after sufficient centrifugal separation.

[0011]

EFFECTS OF THE INVENTION The present invention provides a centrifuge main body, a food inlet installed in the main body, a rotary body concentrically housed in the centrifuge main body and having an open upper surface, and the rotary body in the rotary body. An elevating body housed so as to be able to ascend and descend while contacting the inner wall of the rotating body, and a guide plate that spirally descends from the peripheral edge of the upper end of the rotating body so as to contact the inner wall of the main body and reaches the food outlet. It is a food drying device. According to the present invention, the dried food adhered to the inner wall of the rotating body by the centrifugal separation operation by the rotation of the rotating body is peeled from the inner wall by raising the elevating body along the inner wall of the rotating body, and this food product. Can be lowered along the spiral guide plate connected to the upper edge of the rotating body, and can be taken out of the device from the food outlet connected to the guide plate. This series of operations can be automatically performed, and according to the food drying device of the present invention, it is possible to more reliably dry food and take out the dried food from the device.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an embodiment of a food drying apparatus according to the present invention in a state where an elevating body is lowered.

FIG. 2 is a vertical cross-sectional view of the food drying device of FIG. 1 in a state where the lifting body is raised.

[Explanation of symbols]

3 ... Cylindrical body 7 ... Centrifuge body 8 ... Basket 11 ... Auxiliary guide plate 12 ... Rotating body 14 ... Elevating body 16 ... Inclined plate 17 ... Elevating body Rod 18 ... Guide plate 19 ... Food outlet 20 ... Food inlet

Claims (2)

[Claims] 1. A centrifuge main body, a food inlet installed in the main body, a rotating body concentrically housed in the centrifuge main body having an open upper surface, and inside the rotating body, contacting an inner wall of the rotating body A food drying device, characterized in that it includes an elevating body housed so as to be vertically movable, and a guide plate spirally descending from the peripheral edge of the upper end portion of the rotating body so as to contact the inner wall of the main body and reaching the food outlet. . 2. The food drying device according to claim 1, wherein the lifting body is inclined toward the peripheral direction.