JPH0545193Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a centrifugal filter used in producing tofu.

[Conventional technology and its problems]

Generally, tofu is produced from soybeans through a washing process, a soaking process, a crushing process, a heating process, a filtration process, a coagulation process, a molding process, and a cooling cutting process.

By the way, a centrifugal filter is used in conventional filtration during tofu production, that is, when soybean milk is produced by filtering soybean. Such a centrifugal filter has a structure in which a conical horizontal shaft-type perforated basket is rotatably provided in a drum, and while the basket is rotated at high speed, soybean paste is introduced and filtered by centrifugal force. It is.

Conventional centrifugal filters can quickly and reliably filter soybeans and separate them into soymilk and okara, but on the other hand, because they utilize the centrifugal force of a basket rotating at high speed, The soybean milk is thrown away by centrifugal force and violently collides with the inner circumferential wall of the drum, which tends to generate foam. Such bubbles create cavities in the tofu, causing so-called soot, which leads to the deterioration of the tofu.

The purpose of this invention is to provide a centrifugal filter that solves the conventional problems at once and can reliably suppress the generation of foam in soymilk.

[Means for solving problems]

That is, this invention has a horizontal shaft type perforated basket 6.
It has a configuration in which concentric non-perforated baskets 10 are arranged at predetermined intervals around the outer periphery of the basket.

[Effect]

The centrifugal force generated by the rotation of the perforated basket 6 causes the separated soymilk to collide with the inner circumferential surface of the non-perforated basket 10, thereby alleviating the impact force caused by the collision and suppressing the generation of bubbles.

〔Example〕

An embodiment of this invention shown in the drawings will be described below.

1 is a substantially rectangular frame; 2 is a bottomed cylindrical drum disposed laterally on the frame 1; 3 is a holder having a U-shaped cross section attached annularly to the opening edge of the drum 2; 4 is a lid body with a steam nozzle 5 which is pivotally attached to the rice cake receiver 3 so as to be freely openable and closable; 6 is a conical perforated basket which is rotatably inscribed in the drum 2 via a hollow rotating shaft 7; Rotating shaft 7
The tip of the hole communicates with the inside of the perforated basket 6. Reference numeral 8 denotes a filter material made of wire mesh of large and small mesh provided on the inner peripheral surface of the perforated basket 6;
Reference numeral 9 denotes a separation plate formed on the inner bottom side of the perforated basket 6 in correspondence with the rotating shaft 7, and reference numeral 10 denotes a conical non-perforated plate arranged concentrically at a predetermined interval around the outer periphery of the perforated basket 6. The non-perforated basket 10 is fixed to the rotating shaft 7 and rotates synchronously with the perforated basket 6. 11 is a discharge port formed on the periphery of the tip of the non-porous basket 10; 12 is an annular soybean milk receiver disposed along the discharge port 11 on the inner peripheral surface of the drum 2; and 13 is a lower part of the soybean milk receiver 12. This is a receiving tank installed in communication with the 1
Reference numeral 4 denotes a charging tank connected to the free end of the rotating shaft 7 in a continuous manner via a rotary pipe joint, etc., and 15 indicates the rotating shaft 7.
The bearing 16 is a motor that rotates the rotating shaft 7 via a winding transmission mechanism 17.

Next, the operation of the centrifugal filter according to this invention will be explained.

First, the rotation shaft 7 is rotated by starting the motor 16, and the perforated basket 6 and the non-perforated basket 1 are rotated.
0 is operated in synchronous rotation. After that, when the soybeans are put into the charging tank 14, the soybeans collide with the dispersion plate 9 through the rotary shaft 7 that rotates and are dispersed, and the centrifugal force caused by the rotation of the perforated basket 6 causes the soybean milk to be absorbed by the filter medium 8. and Ocala. The separated bean curd is sequentially conveyed along the inner circumferential surface of the filter medium 8 toward the opening of the perforated basket 6 and discharged into the bean curd receiver 3. On the other hand, immediately after being filtered, the soymilk collides with the inner circumferential surface of the non-porous basket 10, and with the collision force alleviated, it is carried along the inner circumferential surface of the non-porous basket 10 in the direction of its opening, and reaches the outlet 11. More soy milk receiver 1
2 and is discharged into the receiving tank 13. At this time, since the soymilk collides with the inner peripheral surface of the non-porous basket 10 immediately after filtration, the impact force is alleviated and the generation of bubbles can be effectively suppressed.

FIG. 4 shows another embodiment, in which the rotating shaft 27
is formed into a solid shape, and the charging tank 14 is connected to the lid body 4.
The difference from the above embodiment is that the liquid is sent to the inner circumferential bottom of the perforated basket 6 through the liquid sending pipe 18, and the other parts are the same, and the same reference numerals refer to the same parts. shows.

[Effect of idea]

According to this invention, as described above, concentric non-perforated baskets 10 are arranged at predetermined intervals around the outer periphery of the horizontal shaft type perforated basket 6, so that the centrifugal force caused by the rotation of the perforated basket 6 can be reduced. The soybean milk immediately after separation is made to collide with the inner circumferential surface of the non-porous basket 10, and the impact force accompanying the collision is alleviated, thereby suppressing the generation of bubbles. It can be prevented.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
2 is an enlarged sectional view of a main part, FIG. 3 is a front view, and FIG. 4 is a partially cutaway side view showing another embodiment. 2...Drum, 6...Perforated basket, 10...
...Non-perforated basket.

Claims (1)

[Scope of utility model registration request] In a centrifugal filter for manufacturing tofu in which a substantially conical horizontal shaft-type perforated basket 6 is rotatably provided in a drum 2, concentric circular holes are arranged at predetermined intervals on the outer periphery of the perforated basket 6. A centrifugal filter for producing tofu, characterized in that a hole basket 10 is provided.