JPH089075Y2 - Continuous decompression fryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is a continuous decompression fryer, more specifically,
The present invention relates to a continuous depressurization fryer capable of efficiently operating frying by operating a depressurization fryer in a continuous manner and operating a centrifugal separator in a batch manner.

(Prior Art) Japanese Patent Application Laid-Open No. 56-131195 discloses a device for quantitatively supplying a viscous substance. In this apparatus, a belt conveyor having fins for scraping is provided at the bottom of the hopper device, and a desired amount of a viscous substance is supplied by the action of the belt conveyor and the fins for scraping.

(Problems to be solved by the invention) When such a belt conveyor with fins is used,
Items that are solid, such as fried, are partially destroyed by the fins in this hopper,
There is a problem that so-called waste is mixed with the original solid matter or adheres to the solid matter.

Further, on the belt conveyor with fins, the articles to be conveyed or the above-mentioned scraps due to the projection of the fins are left adhered to the portion and mixed with the articles to be conveyed later, especially in the case of food etc. There are major problems in terms of hygiene, taste and appearance.

These problems were especially noticeable when the articles to be transported were fried products.

The present invention has been made in view of such problems of the conventional hopper device, and an object of the present invention is to provide a hopper device that can effectively prevent adhesion and residue of articles and debris in a transport mechanism in the hopper device. To do.

Further, in the continuous depressurization fryer, the net conveyor for conveying the raw materials needs to be continuously operated in order to perform the low pressure frying process of the raw materials in a certain time. On the other hand, the centrifuge is a so-called batch type centrifuge for a certain amount of products in order to efficiently remove the oil from the product that contains a lot of oil due to the reduced pressure frying process. It is necessary to activate.

That is, if the continuous decompression fryer and the centrifugal separator are directly connected to each other, one of the devices must be operated with extremely low efficiency. In the above continuous depressurization fryer, unless the frying time of the raw material is constant, the product is burnt and the net conveyor cannot be operated in a so-called batch manner in accordance with the operation of the centrifugal separator. Further, if the centrifugal separator is continuously operated, the product may be destroyed when the product is loaded. Therefore, it is an object of the present invention to provide a continuous decompression fryer equipped with a device that collects products, which are continuously fried by a continuous decompression fryer, into a predetermined amount and sends them to a centrifugal separator.

(Structure of the Invention) The present invention is a decompression fryer having a continuous decompression fryer chamber and a centrifugal separator, wherein one side wall is provided between the outlet of the continuous decompression fryer chamber and the centrifugal separator. The endless belt having a flat finish is provided on a portion of the endless belt, and a scraping member is brought into contact with the endless belt in the vicinity of a lower end portion thereof, and a hopper device provided with a shutter for receiving the fried product is disposed on the centrifugal separator side. A continuous decompression fryer, characterized in that the hopper device has one endless belt having an inclined conveying surface, and an outlet of the continuous decompression fryer chamber is located above the endless belt.

(Effect of the Invention) According to the present invention, the decompression fryer can be efficiently operated continuously and the centrifugal separator can be efficiently operated batchwise. Also, the hopper device is
There is no risk of product scraps remaining on the endless belt or the like, there is no risk of the product forming a bridge in the hopper device, and there is an extremely small risk of product damage.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the continuous decompression fryer has a decompression fly chamber 1 for decompression frying, a raw material supply device 2 connected to the decompression frying chamber 1, and a decompression frying raw material and oil for separation. In addition, it has a centrifugal separator 4 connected to the reduced pressure frying chamber 1.

The depressurized fly chamber 1 further includes a vacuum unit 8 for depressurizing the depressurized fly chamber 1, an oil level detector 10 for detecting the height of the oil level in the depressurized fly chamber 1, and the depressurized fly chamber 1.
An oil supply tank 12 for supplying the frying oil to the inside,
An oil temperature adjusting device 14 for adjusting the temperature of the oil in the reduced pressure fly chamber and a belt drive device 18 for driving a net conveyor 42 that conveys the raw material in the reduced pressure fly chamber 1 are connected.

As shown in FIG. 2, the raw material supply device 2 is provided with a raw material hopper 30 for receiving the raw material, an automatic butterfly valve 32 which is an airtight shutter provided under the raw material hopper 30, and an automatic butterfly valve 32. And a horizontal pipe portion 34 that receives the raw material that has passed through the automatic butterfly valve 32. The horizontal pipe portion 34 communicates with the decompression fly chamber 1 by a pipe (not shown) having an electromagnetic valve and a flow rate control valve. As the airtight shutter, an automatic ball valve, an automatic gate valve or the like may be adopted in addition to the automatic butterfly valve.

A charging bar 37 that reciprocates in the horizontal tube portion 34 is incorporated in the horizontal pipe portion 34, and the charging bar 37 is attached to a hydraulic cylinder 36 that serves as a drive source for the raw material supply operation.

A raw material charging cover 40 is attached to the side of the horizontal pipe portion 34 opposite to the hydraulic cylinder 36 via an automatic ball valve 38 which is a pressure cutoff valve. The raw material charging cover 40 has a cylindrical shape and extends inside the depressurized fly chamber 1 in a direction orthogonal to the transport direction of the net conveyor 42. A raw material feeding opening 44 facing downward is provided at a position of the raw material feeding cover 40 above the net conveyor 42. The raw material charging cover 40 is provided with a guide (not shown) in a downward direction in order to reliably send the falling raw material to the raw material charging position (preferably the compartment where the immersion in oil is being started). May be.

The automatic butterfly valve 32 automatically opens when a raw material is fed into the raw material hopper 30, and automatically closes after a certain time has elapsed. Next, the electromagnetic valve of the pipe communicating with the decompression fly chamber 1 is opened to gradually reduce the pressure in the horizontal pipe portion 34. Thereafter, the automatic ball valve 38 is automatically opened immediately before the charging bar 37 starts the operation of pushing the raw material into the charging opening 44, and is closed when the operation is completed and the retraction of the charging bar 37 is completed. The raw material supply device 2 has its components operating in this manner,
The raw materials are charged while always maintaining the reduced pressure in the reduced pressure fly chamber 1.

Net conveyor 42 that conveys raw materials in the depressurization fry chamber 1
2, a net-like endless belt 50 is provided with a plurality of partition nets 52 extending substantially outward. The width of the depressurization fly chamber 1 in the direction orthogonal to the transport direction of the net conveyor 42 is substantially equal to the width of the endless belt 50 and the partition net 52. Therefore, the net conveyor 42 is formed with a plurality of compartments 54 that are open to the outside, and a certain amount of raw material is charged therein. The inclination angle of the partition net 52 with respect to the endless belt 50 will be described later.

The net conveyor 42 is guided by three guide pulleys 60, 61 and 62 as shown in FIG.
Driven intermittently by 64. The transport path of the net conveyor 42 has a substantially parallelogram shape, and the portion corresponding to the bottom surface thereof is in the oil, where the raw material is fried. The net conveyor 42 moves, for example, once every 10 seconds to 10 minutes by the width of the compartment in the conveying direction of the net conveyor 42.

As shown in FIGS. 1 and 2, an optical disc 72 is attached to the guide pulley 61 so as to rotate via a chain 70 outside the decompression fly chamber 1. A light emitting portion 74 and a light receiving portion 76 are provided on both sides of the optical disc 72, and detect the rotation angle of the guide pulley 61, that is, the transport distance of the net conveyor 42.

Further, around the guide pulley 61, there is provided a curved surface 80 centering on the rotation axis of the guide pulley 61 and substantially conforming to the locus of the tip of the partition net 52. The lower end of the curved surface 80 is connected to the bottom surface 82 of the reduced pressure fly chamber 1. The upper end of the curved surface 80 is connected to an inclined guide plate 84 that guides the introduced raw material to the compartment 54. In the curved surface 80 thus configured, when the opening of the compartment 54 having the substantially upward opening changes downward, the opening of the compartment 54 is closed and the raw material introduced into the compartment 54 exits from the compartment 54. Prevent that. It is preferable that the raw material is charged into the compartment 54 in the compartment at the start of frying (the compartment partially filled with oil).

The height of the oil level in the depressurized fly chamber 1 is detected by the oil level detector 10 shown in FIG. Then, when the oil in the depressurized frying chamber 1 is reduced by the frying process and the height of the oil surface falls below a predetermined height, it is detected by the oil surface detector 10,
Then, an oil level control system (not shown) sends a signal to the oil supply tank 12 to replenish the oil. In the present embodiment, the oil level is above the endless belt 50 in the horizontal transport path portion where the compartment 54 faces downward. However, the oil level may be below the endless belt 50 depending on the type of raw material and the temperature of the oil.

The oil temperature adjusting device 14 uses the oil pump 90 to cool the oil in the reduced frying chamber 1 by using the cooling unit 92 or the heating unit 94.
And sequentially sent to the filtration device 96 at a predetermined temperature, for example 80 to 12
Keep at 0 ° C.

The oil take-out pipe 98 of the oil temperature adjusting device 14 is connected to the bottom surface of the depressurization fry chamber 1 and takes out oil from there.

A part of the oil that has reached a predetermined temperature by the oil temperature adjusting device 14 flows in from the upper portion of the inclined guide plate 84 by the oil return pipe 100, and prevents the raw material from adhering to the inclined guide plate 84.

Part of the oil that has reached the predetermined temperature is further sprayed in the form of a shower from above onto the vicinity of the guide pulley 61 at the bottom of the transport path of the net conveyor 42. By doing so, it is possible to prevent the raw material for which the frying process has started from floating in the oil and adhering to the net conveyor 42, and at the same time, to remove the adhering raw material. Further, it has an effect of stirring the raw material in the oil to reduce uneven frying. Further, thermal energy can be supplied to the oil near the start of the frying process.

A part of the oil that has reached the predetermined temperature is a part of the discharge slope 106 that conveys the raw material after frying, that is, the product in the depressurization frying chamber 1 to the centrifugal separator 4, that is, the endless belt 50.
Near the position where the oil comes out of the oil, it is returned like a shower to the endless belt 50 so as to spray. By doing so, the product attached to the endless belt 50 can be peeled off from the endless belt 50.

The endless belt 50, as shown in FIG.
It runs parallel to and above the carry-out slope 106 inclined by 60 °. In this state, the partition net 52 has a horizontal line H
Angle with respect to the angle, that is, the carry-out inclination angle α of the division net
Is attached to the endless belt 50 by the fixing member 108 so that the angle is 40 to 100 °, preferably 80 to 90 °.

As shown in FIG. 3, a hopper device 111 is provided below the discharge port 110 of the depressurized frying chamber 1. In the hopper device 111, an endless belt unloading 112 made of a stainless steel plate having a thickness of 0.1 to 2 mm and having a thickness of 0.1 to 2 mm is provided on a part of the side wall portion 120 and pulleys 114, 11 above and below.
6 and the tension roller 118 are provided so that they can be conveyed. A scraping member 119 is provided at the lower end of the carry-out endless belt 112 on the lower pulley 116 while being pressed against the outer surface of the carry-out endless belt 112. In addition, the hopper device 111
A shutter 113 is provided at the lower end of the.

The centrifugal separator 4 is provided below the hopper device 111. The centrifugal separator 4 is, as shown in FIG.
Centrifuge 1 into which the product is loaded from the hopper device 111
22, a driving device 124 for the centrifuge 122, and the centrifuge 122
And a hopper 130 having an airtight shutter 129 at the lower end thereof and an oil collecting cylinder 131 for collecting the oil separated by the centrifugal separator 122.

The centrifuge 122, as shown in FIG.
Between a cylindrical member 136 integrally attached to a rotary drive shaft 132 connected to (not shown) and provided with a large number of small holes 134, and a position pressed against the lower end of the cylindrical member 136 and the lower end. A bottom lid member 138 that reciprocates between the bottom lid member 138 and a position where a product passing gap is provided, and a bottom lid driving device 140 for vertically moving the bottom lid member 138 within the above range.

The bottom lid member 138 has a high central portion and has a horizontal flange portion 139 on the peripheral portion, and is substantially conical. The bottom lid member 138 is biased upward by a coil spring 144 attached to a spring core member 142 that extends further downward from the lower end of the rotary shaft 132, and is pressed against the lower end member of the cylindrical member 136 to close the bottom. There is.

The bottom lid drive device 140 is a drive shaft 146 and a U-shaped member attached to the tip of the drive shaft 146. The bottom cover drive device 140 is engaged in a circumferential recess formed by two flanges 150 and 152 provided on the spring core member 142. It has a matching arm portion 154.

Next, the operation of the centrifugal separator 4 will be described with reference to FIG. Normally, as shown in (A), the coil spring 144
The bottom portion of the cylindrical member 136 is closed by the bottom lid member 138 by the urging force of. When a certain amount of product is accumulated in the hopper device 111, the shutter 113 is opened and the product is put into the centrifuge 122. As a result, the product accumulates in the lower portion of the space formed by the cylindrical member 136 and the bottom lid member 138.

Subsequently, as shown in (B), the rotary drive device 124 (not shown) is activated to move the cylindrical member 136 through the rotary drive shaft 132.
And the bottom lid member 138 integrally rotate. The rotation speed at this time is, for example, 300 to 1500 times per minute. By doing so, the product moves to the inner surface of the cylindrical member 136. In this case, since the bottom lid member 138 has a high center and is inclined outward, the product does not concentrate only on the lowest portion of the inner surface but spreads thinly on the entire inner surface. As a result, the product can be drained almost uniformly. The separated oil is the small hole 1 of the cylindrical member 136.
It comes out of 34 and is collected by the oil collecting cylinder 131. Oil collecting cylinder 131
The oil collected by is discarded through a pipe (not shown) with an airtight shutter.

Next, the rotation of the cylindrical member 136 and the like is stopped, and as shown in (C), the product falls again to the lower portion of the space formed by the cylindrical member 136 and the bottom lid member 138.

Then, as shown in (D), the bottom lid drive device 140 is operated, and the bottom lid member 138 is lowered against the biasing force of the coil spring 144. As a result, a gap is formed between the lower end edge of the cylindrical member 136 and the bottom lid member 138, and the product falls through the gap to the hopper 130.

Thereafter, the operation of the bottom cover driving device 140 is stopped, and the bottom cover member 138 is lifted by the urging force of the coil spring 144, (A).
As shown in, the bottom lid member 138 closes the bottom portion of the cylindrical member 136.

Next, the airtight shutter 129 of the hopper 130 is connected to the product take-out chamber 160 as shown in FIG.
have. The product take-out chamber 160 is provided with a pressure cutoff valve 161 at the lower end for taking out the product. Further, the product unloading chamber 160 is equipped with a pressure adjuster 162, so that the inside of the product unloading chamber can be returned from reduced pressure to normal pressure. Further, it is preferable that the product take-out chamber is provided with a cooling mechanism 163. Thereby, the product can be cooled and hardened, and the deformation of the product that occurs when the pressure in the product take-out chamber is returned from the reduced pressure to the normal pressure can be effectively prevented.

Next, the process of taking out the product with the above configuration will be described. First, when a predetermined amount of the product is accumulated in the hopper 130, the airtight shutter 129 is opened and the product is dropped into the product extraction chamber 160. Then, the airtight shutter 129 is closed. afterwards,
The cooling mechanism 163 is operated to cool the product to a predetermined product temperature. Next, the pressure adjusting mechanism 162 is operated to return the inside of the product extraction chamber 160 from reduced pressure to normal pressure. After that, the pressure cutoff valve 161 is opened and the product is taken out.

Another embodiment of the raw material supply apparatus of the present invention is shown in FIG. 6, but the same components as those of the embodiment shown in FIG. A common axis line of the horizontal pipe portion 34, the raw material feeding bar 37, and the raw material feeding cover 40 coincides with the feeding direction of the raw material feeding endless belt 16. Also,
The inclined surface 204 below the charging port 200 of the charging cover 40 is preferably provided with oil outlets 202 at a plurality of positions,
Oil is sent here from the oil pump 90 shown in FIG. Therefore, the oil always flows on the inclined surface 204, and the raw material supplied thereto does not adhere and accumulate.

[Brief description of drawings]

FIG. 1 is an explanatory view of the structure of a continuous fryer having an embodiment of the present invention, FIG. 2 is a perspective view of a raw material feeding section, FIG. 3 is a sectional view of a product sloping surface and a unloading duct, and FIG. Is a sectional view of the centrifugal separator, FIG. 5 is an exploded view for explaining the operation of the centrifugal separator, and FIG. 6 is a sectional view of another embodiment of the raw material charging section. 1 ... Decompression frying chamber 2 ... Raw material supply device 4 ... Centrifugal separation device 8 ... Vacuum unit 14 ... Oil temperature adjusting device 30 ... Raw material hopper 40 ... Filling cover 42 ... Net conveyor 50 ... Endless Belt 52 …… Partition net 54 …… Partition chamber 80 …… Curved surface 84 …… Inclined guide plate 106 …… Unloading slope 112 …… Unloading endless belt 122 …… Centrifugal separator 136 …… Cylinder member 138 …… Bottom cover member

Claims (3)

[Scope of utility model registration request] 1. A decompression fryer having a continuous decompression fryer chamber and a centrifugal separator, wherein a part of a side wall portion between the discharge port of the continuous decompression fryer chamber and the centrifugal separator is flat-finished. An endless belt is provided and a scraper is brought into contact with the endless belt in the vicinity of a lower end thereof, and a shutter for receiving the frying-treated product is provided. Further, the hopper device tilts the conveying surface. A decompression fryer, wherein the decompression fryer has a single endless belt, and the discharge port of the continuous decompression fryer chamber is located above the endless belt conveyance surface. 2. The vacuum fryer according to claim 1, wherein the endless belt is a stainless plate having a thickness of 0.1 to 2.0 mm. 3. The vacuum fryer according to claim 1, wherein the surface of the endless belt has a flat finish.