WO2010139181A1

WO2010139181A1 - Method for preparing soybean milk using metal grinding disc and metal grinding disc of soybean grinding machine specially used for said method

Info

Publication number: WO2010139181A1
Application number: PCT/CN2010/000309
Authority: WO
Inventors: 黄沫荻; 陈可人; 崔（岑鸟）
Original assignee: Huang Modi; Chen Keren; Cui Cen
Priority date: 2009-06-05
Filing date: 2010-03-12
Publication date: 2010-12-09
Also published as: CN101579086A; CN101579086B

Abstract

A method for preparing soybean milk using metal grinding disc and metal grinding disc of soybean grinding machine specially used for said method. The metal grinding disc used for said method comprises fixed and movable grinding disc, coniform cavity of fixed and movable grinding disc forms coarse crushing cavity whose working faces set impact slips and grooves. Peripheral portion of fixed and movable grinding discs form broken wall region which sets broken wall blocks and broken wall grooves. Soybean milk outlet lies in external rim of fixed and movable grinding discs. Vanes are set on the movable grinding disc. The immersed soybean is coarse crushed into crude soybean milk by centrifugal force in coarse crushing cavity, while movable grinding disc is running at high speed, further the cell wall of crude soybean milk is broken through high speed impact of broken wall blocks and grooves of grinding disc to extract soybean cytoplasm.

Description

Method for preparing soybean milk by using metal grinding disc

And a soybean grinding machine metal grinding disc specially used for the method

The present invention relates to a method for producing soy milk, and more particularly to a method for extracting soy cytoplasm from a soybean cell wall to prepare an emulsified soybean milk.

The present invention also relates to a grinding disc for use in a soybean refiner, and more particularly to a metal grinding disc for pulverizing soybean milk by using a striking strip or a broken block structure on the working surface to break up soybean cell wall to extract soybean cytoplasm.

Background technique

Soy is a nutritious and comprehensive health food, but its nutrition is tightly wrapped by the cell wall of plant cellulose, which is not easy to digest. Since ancient China, the soybeans have been rubbed (squeezed) to break the cell wall, and the cytoplasmic soymilk has been taken out, and then the products such as tofu have been prepared, and the digestibility % can be increased to 92%-96%. Methods for extracting soybean cell fluid are known as rotary cutter cutting, high temperature blasting, and grinding wheel grinding discs. Rotary cutter cutting method is simple and easy, but it can only be used for small amount of refining users, and the broken rate of soymilk is low. The high temperature breaking method has good quality and high efficiency, but it is technical and investment. It can only be applied to a very small number of large factories; the currently used separated soybean wheel refiner has high production efficiency, good overall practicability and large usage. Chinese Patent Application No. 96239350 discloses a soybean refiner grinding wheel, such a refiner. The core component of the grinding machine refiner is the grinding wheel. When starting the refining, it is necessary to adjust the refining clearance and water distribution of the grinding wheel. It is inconvenient, especially in the small-scale refining of snacks, restaurants, restaurants, etc. It seems that the operation is cumbersome and inconvenient. Moreover, due to the durability of the grinding wheel, the poor circumference of the broken wall, and the lack of calibration of the water distribution, the quality of the soybean milk is also affected. Summary of the invention

The technical problem to be solved by the present invention is to provide a method for making soybean milk by using a metal grinding disc, which can extract soybean cytoplasm by impacting and breaking soybean cell wall, and has simple process, simple operation and strong wall breaking ability.

Another technical problem to be solved by the present invention is to provide a metal grinding disc for a soybean refiner which is specifically used in the above method, which respectively impacts and breaks soybean cell walls through a coarse crushing chamber and a broken wall belt, and has a simple structure and simple operation. Strong ability to break the wall.

The technical proposal of the method for preparing soybean milk by using a metal grinding disc comprises the following steps: (a) feeding: feeding the soaked soybean through a feeding port into a cavity between a fixed grinding disc and a moving grinding disc of a metal grinding disc Within the coarse cavity of the body, the soybean falls on the moving disc under the action of gravity; (b) coarse crushing: the circumferentially distributed blades of the coarse-grained portion of the moving disc rotating at high speed drive the soybean to rotate and surround Movement diffusion, the inclined working surface of the coarse grinding chamber of the fixed grinding disc forms a collision groove between the impact strip and the impact strip distributed in the circumferential direction to impact the soybean, forming a coarsely divided crude soybean slurry, and the crude soybean slurry is in a centrifugal force. Under the action, it flows into the broken belt through the impact groove; (c) Broken wall: The coarse bean slurry that breaks into the broken wall of the fixed grinding disc and the dynamic grinding disc, the broken wall and the broken wall in the broken wall part of the fixed grinding disc Under the high-speed staggered collision between the broken wall block and the broken wall groove of the broken wall of the groove and the dynamic grinding disc, the soybean cell wall of the crude bean slurry is broken, the soybean cytoplasm is extracted, and the broken soybean milk is obtained, and flows out from the slurry outlet; d) Filtration: The soy cytoplasmic broken soybean milk is filtered, and the soybean hull, cell wall and bean dregs are filtered off to obtain emulsified soybean milk.

The technical proposal of the present invention for the metal grinding disc of the soybean refiner dedicated to the above method comprises: a fixed grinding disc and a moving grinding disc provided with a feeding opening, a cavity between the fixed grinding disc and the moving grinding disc The body constitutes a coarse crushing cavity, and the inclined working surface of the coarse crushing cavity portion of the fixed grinding disc has a circumferentially distributed striking strip, and an impact groove is formed between the striking strips; the peripheral portion of the fixed grinding disc and the moving grinding disc constitutes a broken wall strip, the fixed grinding disc The broken wall portion has a broken wall block distributed in the circumferential direction, and a broken wall groove is formed between the broken wall blocks, and the broken wall portion of the dynamic grinding disc has a broken wall block distributed in the circumferential direction, and a broken wall groove is formed between the broken wall blocks. The coarsely crushed cavity portion on the dynamic grinding disc has circumferentially distributed vanes, and the outer edge of the fixed grinding disc and the moving grinding disc is a slurry outlet with a gap between the contact faces.

As a further improvement of the special metal grinding disc of the present invention, the broken wall block on the fixed grinding disc is

2 rows, staggered in the circumferential direction, spaced in the radial direction; the broken wall blocks on the dynamic grinding disc are 2 rows, staggered along the circumference, and spaced in the radial direction.

Compared with the prior art, the beneficial effects of the invention are as follows: Since the fixed grinding disc and the dynamic grinding disc are made of metal materials, when the moving grinding disc rotates at a high speed, the soaked soybeans are moved in the coarse grinding chamber and the blades of the passive grinding disc are shaken. The impact strip and the impact groove of the fixed grinding disc repeatedly collide to form a coarse bean slurry, and the coarse bean slurry is struck in a staggered movement between the broken wall block and the broken wall groove on the broken grinding belt and the fixed grinding disc, so that the crude soybean slurry passes through the broken wall strip. The cell wall is broken, but it is not finer, and the cell liquid is not mixed in the filtration separation, thereby obtaining a precipitate-free soybean cell liquid, that is, emulsified soybean milk. Due to its simple structure, easy processing, high dimensional and shape, the metal grinding disc is easy to set up, easy to adjust and easy to operate. There is no direct friction between the discs and the service life is long. The broken wall block and the broken wall groove structure have good wall breaking effect.

DRAWINGS

The invention will be described in detail below with reference to the accompanying drawings.

1 is a schematic cross-sectional view showing a structure in which a metal grinding disc fixed grinding disc and a moving grinding disc cooperate; FIG. 2 is a working surface view of an embodiment of a fixed grinding disc; Figure 3 is a working face view of an embodiment of the dynamic grinding disc; Figure 4 is an enlarged view of the K direction of Figure 1;

Figure 5 is an enlarged view of the section along A-A in Figure 2.

detailed description

In Fig. 1, the working surface of the fixed grinding disc 3 of the metal grinding disc 1 is mounted in cooperation with the working surface of the moving grinding disc 4, and the top surface of the fixed grinding disc 3 is provided with a feeding port 2, a cavity between the fixed grinding disc 3 and the moving grinding disc 4. The rough cavity 5 is formed. The inclined working surface of the coarse-grained cavity portion of the fixed grinding disc 3 has circumferentially distributed striking strips 7, and an impingement groove 8 is formed between the striking strips. The peripheral portion of the fixed grinding disc 3 and the moving grinding disc 4 constitutes a broken wall strip 6, and the broken wall portion of the fixed grinding disc has a broken wall block 10A distributed in the circumferential direction, and a broken wall groove 11A is formed between the broken wall blocks, and the broken wall is broken. Part of the broken wall block 10B is distributed in the circumferential direction, and a broken wall groove 11B is formed between the broken wall blocks. The coarse-grained cavity portion on the movable grinding disc 4 has circumferentially distributed vanes 9, and the outer edges of the fixed grinding discs 3 and the movable grinding discs 4 are the slurry discharge ports 12 with gaps between the contact faces. The metal grinding disc 1 can replace the grinding wheel grinding wheel of the grinding wheel refining machine. When using, the fixing grinding disc 3 can be fixedly connected with the feeding pipe of the soybean refiner by positioning means such as positioning nails, and the feeding port 2 of the grinding disc 3 is fixed. It is in communication with the feed pipe of the soybean refiner. The gap between the fixed grinding disc 3 and the moving grinding disc 4 is 0. 01mm ~ 0. 05mm, preferably 0. 03 hidden gap is assembled in the soybean refiner, the shaft 14 of the lower part of the grinding disc 4 is passed through the coupling device and the motor Connected. The soaked soybeans are fed into the coarse crushing chamber 5 through the feed port 2, and the soybeans are dropped onto the moving grinding disc 4 by the action of gravity, and the moving grinding disc 4 is rotated at a high speed of 2800 rpm by the motor. The blade 9 of the coarse-grained portion of the moving disc 4 which rotates at a high speed drives the soybean to rotate and spreads to the periphery, and the striking strip 7 and the striking groove 8 on the inclined working surface of the coarse-grained portion of the fixed disc 3 impact the soybean, so that Soybean is coarsely crushed, The crude soybean slurry is formed, and the crude soybean slurry flows into the broken belt 6 through the impingement groove 8 by the centrifugal force. The coarse bean slurry which is poured into the broken wall 6 formed by the peripheral portion of the fixed grinding disc 3 and the moving grinding disc 4 is subjected to the broken wall block 10A of the broken wall portion of the fixed grinding disc 3, and the broken wall groove 1 1A and the dynamic grinding disc 4 are broken. The high-speed staggered collision of the partial broken wall block 10B and the broken wall groove 11B causes the soybean cell wall of the crude bean slurry to be broken, thereby obtaining a broken-walled crude soybean milk containing soybean cytoplasm. The broken-walled crude soybean milk was filtered by a usual method, and the soybean hulls, cell walls, and bean dregs were filtered off to obtain an emulsified soybean milk.

In Figs. 2 and 3, the striking bars 9 on the fixed grinding discs 3 are distributed in the circumferential direction, the width of the striking strips 9 in the circumferential direction is 6 to 12, and the width of the striking grooves 8 in the circumferential direction is 6 to 12 mm. Broken block 10A fixed on the disc 3 along the circumferential width of 6 ~ 12mm, broken along a circumferential width of grooves 11A of the movable disc 6 ~ 12mm ₀ broken along the circumferential width of the block 10B having 6 to 4 on 12, the width of the broken wall groove 11B in the circumferential direction is 6 to 12 mm. The blades 9 on the dynamic grinding disc 4 are 4 to 8 strips.

As another embodiment of the present invention, the broken wall blocks 10A on the fixed grinding disc 3 are arranged in two rows, staggered in the circumferential direction, and spaced in the radial direction; the broken wall blocks 10B on the dynamic grinding disc 4 are in two rows, along the The circumferential direction is staggered and spaced in the radial direction.

In Fig. 4, the mating surface of the fixed grinding disc and the moving grinding disc forms a broken wall strip and a slurry discharging port, and the side surface shape is two zigzags facing each other with a gap in the middle; in Fig. 5, the striking strip of the coarse grinding chamber of the grinding disc and The cross-sectional shape of the impingement groove is zigzag.

Metal grinding discs can be made of cast iron, cast steel, stainless steel, aluminum alloy or ceramic materials. Further, it is possible to further optimize the colliding strips of the coarsely crushed cavities, the blades, the broken wall of the broken wall strip, and the clamp angle of the separation screen of the soybean refiner to obtain the best performance of the metal grinder soymilk machine.

Claims

Rights request

1. A method for preparing soy milk using a metal grinding disc, comprising the steps of:

(a) Feeding: The soaked soybeans are fed into the coarse cavities (5) formed by the cavity between the fixed grinding disc (3) of the metal grinding disc (1) and the moving disc (4) through the feed port (2). Within the soybean, the effect of gravity falls on the moving disc (4);

(b) coarse crushing: the circumferentially distributed blades (9) of the coarse-grained cavity portion of the high-speed rotating moving disc (4) drive the soybean to rotate and spread to the periphery, and the inclination of the coarse-grained portion of the fixed disc (3) On the working surface, a circumferentially distributed impact strip (7) and an impact strip form an impact groove (8) to impact the soybean to form a coarsely divided crude soybean slurry, and the crude soybean slurry is subjected to centrifugal force by the impact groove ( 8) Flow into the broken wall (6);

(c) Broken wall: The coarse bean slurry of the broken wall (6) which is formed by the peripheral portion of the fixed grinding disc (3) and the moving grinding disc (4), and the broken wall portion of the broken wall portion of the fixed grinding disc (3) ( 10A) and the broken wall groove (11A) and the dynamic grinding disc (4) under the high-speed staggered collision between the broken wall block (10B) and the broken wall groove (11B), the soybean cell wall of the crude bean slurry is broken, and the soybean is extracted. Cytoplasmic, obtained broken crude soybean milk, flowing out from the pulp outlet (12);

(d) Filtration: The soy cytoplasmic broken soybean milk is filtered, and the soybean hull, the cell wall and the bean dregs are filtered off to obtain an emulsified soybean milk.

2. A metal grinding disc for a soybean refiner comprising a fixed grinding disc (3) having a feed opening (2) and a moving grinding disc (4), characterized in that: the fixed grinding disc (3) and the moving grinding disc (4) The cavities between the cavities constitute a coarse crushing cavity (5), and the inclined working surface of the coarse crushing cavity portion of the fixed grinding disc (3) has circumferentially distributed impact strips (7), and impact grooves are formed between the striking strips ( 8); the peripheral portion of the fixed grinding disc (3) and the moving grinding disc (4) constitutes a broken wall strip (6), the fixed grinding disc (3) The broken wall portion has a circumferentially distributed broken wall block U0A), and a broken wall groove U1A is formed between the broken wall blocks (10A), and the broken wall portion of the moving grinding plate (4) has a circumferentially distributed broken portion. a wall block (10B), a broken wall groove (11B) is formed between the broken wall blocks (10B); the coarse crushing cavity portion on the moving grinding plate ( ⁴ ) has circumferentially distributed blades (9), the fixed grinding plate (3) The outer edge of the moving disc (4) is the slurry outlet (12) with a gap between the contact surfaces.

The metal grinding disc according to claim 2, wherein a gap between the fixed grinding disc (3) and the movable grinding disc (4) is 0.01 mm to 0.05 mm.

The metal grinding disc according to claim 2, characterized in that: the width of the striking strip (7) on the fixed grinding disc (3) in the circumferential direction is 6 to 12 mm, and the width of the impingement groove (8) in the circumferential direction It is 6~12mm.

The metal grinding disc according to claim 2, wherein: the fixed grinding disc

(3) The width of the broken wall block (10A) in the circumferential direction is 6~12 s, and the width of the broken wall groove (11A) in the circumferential direction is 6 -12.

The metal grinding disc according to claim 1, wherein: the broken wall block (10B) on the moving grinding disc (4) has a width in the circumferential direction of 6 to 12 mm, and the broken wall groove (11B) is circumferentially The width is 6~12mm.

7. The metal grinding disc according to claim 2, wherein: the grinding disc

(4) The upper blades (9) are 4~8 pieces.

The metal grinding disc according to any one of claims 2 to 7, characterized in that: the broken wall blocks (10A) on the fixed grinding disc (3) are two rows, which are staggered in the circumferential direction, and have radial directions. The partitions (10B) on the moving disc (4) are arranged in two rows, staggered in the circumferential direction, and spaced apart in the radial direction.