RU2614777C1 - Device for grinding bean culture grain in soaked form - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: grinding device consists of a body with output nozzles of okara and milk, a loading capacity passing into a grinding chamber. The grinding chamber has an abrasive tapered neck intended for preliminary grinding and abrasion of material and consisting of an upper and a lower tapered portions with spiral grooves over the entire surface of the cone. The spiral grooves are made to form a directed turbulent flow to move and abrade the feed material by the abrasive of the neck. Pests with incisions applied on them are installed inside the neck at the power shaft, performed in a spiral of Archimedes with the possibility of creating additional vortex fluid flow to increase speed and surface of fine particle interaction with water.

EFFECT: improved quality of grinding, improved extraction of soy protein in the emulsion and reduced energy intensity of the working process.

2 dwg

Description

The invention relates to the field of agriculture, and in particular to devices for grinding leguminous feed, in particular soybeans, peas, beans, and can be used to obtain a product with a given dispersion.

Known disk mill containing a housing equipped with a loading and unloading holes, as well as a loading hopper. Inside the case, a drive disk is eccentrically relative to each other, cantileverly mounted on the drive shaft and provided with a central hole for loading the crushed product into the interdisc space, and placed on the shaft mounted on the case, the passive disk is mounted with the possibility of changing the eccentricity relative to the drive disk. The grinding surface of each disk consists of an inner and outer belt with flutes in the form of concentric circles, as well as a middle belt with flutes placed between the inner and outer belts, the width of which is 1 / 5-1 / 4 of the width of the outer belt. In this case, the pitch and depth of the grooves of the middle belt are equal to the arithmetic mean values of the pitch and depth of the grooves of the inner and outer belts, respectively (US Pat. RU No. 2077130, IPC ⁶ V02C 7/10).

Also known is a grinder containing a chamber in which a separator is located, equipped with a rotor with blades and a nozzle located in the bottom of the separator, and a shaking mechanism. The shaking mechanism is mounted on a separator connected to the chamber through elastic gaskets, and the nozzle is made of elastic material, and the rotor blades are installed at an angle to the plane of their rotation (AS USSR No. 884718, class ³ В02С 13/14).

The disadvantage of these devices is the inability to carry out fine grinding. In addition, grain processing occurs discretely, which does not provide a continuous flow of product to the output of the device, therefore, grinding efficiency and productivity of the finished product are not sufficiently combined.

Also known is a device for grinding materials, comprising a housing with an axial inlet and an outlet and a cylindrical grinding chamber, in which two horizontally arranged rotors with inner annular rows of grinding elements providing centrifugal action are coaxially mounted to rotate, moreover, between the grinding elements of the rotors pass channels, the cross section of which has a closed loop (US Pat. RU No. 2166367, IPC ⁷ V02C 7/08).

A disadvantage of the known devices is the constant energy intensity due to the high density, and hence the strength of the crushed product.

The closest in technical essence is the chopper soaked soybean grain, comprising a housing with nozzles for input and output of the processed material, in which there is a grinding device mounted on the drive shaft and the loading capacity (US Pat. RU 2477179 C1, CL ⁷ V02C 7/18). We take it for a prototype.

The disadvantage of this device is the incomplete extraction of protein into the emulsion due to insufficient grinding of grain and a small area of interaction of fine particles with water.

The technical result is the complete extraction of soy protein in the emulsion by improving the quality of grinding, while reducing the energy intensity of the working process.

The technical result of the invention is achieved by the fact that in the device for grinding grain legumes in soaked form, comprising a housing with a pipe outlet of the processed material, in which there is a grinding device containing a movable abrasive disk, made in the form of a truncated cone, mounted on the drive shaft and installed with the formation of the required gap between the bottom and sides of the housing used as a milk collector, and at the bottom of the abrasive disk are radially suspended channels; a sieve with a mesh size that provides the required separation, and a sieve cleaning device and a loading tank, according to the invention, the loading tank has a grinding chamber including a neck in the form of a truncated cone for inputting the material to be processed, while the entire inner surface of the neck is made of abrasive and equipped with a helical channel, moreover, the lower part of the conical neck and the lower rotating abrasive disk are located relative to each other congruently and installed with the formation of a gap, equal to the required grinding module; in addition, the bottom of the movable abrasive disk is equipped with rectilinear radial pests with notches made in a spiral of Archimedes, providing rotation of the processed material; at the same time, a separating sieve is installed under the lower rotating abrasive disk, made with mesh sizes, which ensure separation of the suspension into fractions; and the grinding device is additionally equipped with a crushing device mounted inside the mouth on the drive shaft with a gap between the abrasive surface of the mouth and the ends of the tetrahedral fingers, while the crushing device is a conical screw, and the turns of the screw are made in the form of tetrahedral fingers.

The proposed design in comparison with the prototype and other known technical solutions has the following advantages:

- a significant reduction in energy intensity by reducing the strength and density of the grain by pre-soaking it, as well as by the formation of a directed turbulent flow along the helical grooves of the conical neck, arising from the centrifugal forces of the rotating abrasive disk and crushing device;

- improving the quality indicators of the process, in particular the extraction of protein into the emulsion, by increasing the trajectory, speed of movement and the area of interaction of fine grain particles with water, by notches made by Archimedes spiral on a moving abrasive disk, which ensures the creation of additional turbulent flows above the surface of the moving disk ;

- improve the grinding quality and achieve the required level of grinding soaked beans of legumes by preliminary crushing and grinding the processed material in the grinding chamber, by installing an additional crushing device, in the form of a cone screw, the turns of which are made in the form of tetrahedral fingers.

The invention is illustrated by drawings, where: in FIG. 1. shows a General view of a device for grinding grain legumes in a soaked form; in FIG. Figure 2 shows a movable abrasive disk with notches made in a spiral of Archimedes on straight radial scourges.

A device for grinding leguminous crops in a soaked form contains a housing 1 (Fig. 1) with nozzles for the output of Okara 3 (Fig. 1) and milk 2 (Fig. 1), a loading tank 5 (Fig. 1), passing into the grinding chamber 6 (Fig. 1), the grinding chamber is equipped with an abrasive cone-shaped neck 7 (Fig. 1), consisting of the upper 8 (Fig. 1) and lower 9 (Fig. 1) conical parts with helical grooves 10 (Fig. 1), throughout the surface of the neck 7 (Fig. 1), inside the neck on the shaft 17 (Fig. 1) of the drive 18 (Fig. 1) from the top of the movable abrasive disk 13 (Fig. 1) with a straightener crushing scouring device 11 (Fig. 1), which is a cone screw, and the turns of the screw are made in the form of tetrahedral fingers 12 (Fig. 1), in order to prevent clogging of the sieve 4 (Fig. 1) with an okara, a scraper 16 (Fig. 1) was installed

The technological process of grinding soaked legume crops is as follows. When the drive motor 18 is turned on, the rotation is transmitted through the shaft 17 to the movable abrasive disk 13 and the crushing device 11. Soaked grain is poured into the loading tank 5 and, under the influence of gravity, simultaneously with water, enters the grinding chamber 6. The movement of the soaked grain is accompanied by a turbulent flow arising in the grinding chamber 6 from the rotation of the crushing device 11 and the helical channel 10 deposited on the abrasive neck 7. In the upper cone-shaped part of the abrasive neck 8 soaked It is preliminarily crushed and abraded by impacts of tetrahedral fingers 12 of the crushing device 11 and the abrasive neck 7. Under the influence of gravity and turbulent flow, the crushed grain enters the gap between the lower part of the conical neck 9 and the rotating abrasive disk 13 with linear radial scourges 14. The crushed particles grains interact with the surface of the lower cone-shaped abrasive neck 9 and the radial pests 14 of the movable abrasive disk 13, are abraded to a fine size fine grinding. Under the influence of the supplied water, the comminuted particles are washed off and the bean cultures protein is simultaneously extracted into the emulsion. Thanks to the notches 15, applied in a spiral of Archimedes on the scourges 14 of the movable abrasive disk 13, the speed of movement of finely dispersed particles of the material increases due to the increase in turbulent flow above the surface of the movable disk 13 and, as a result, the increase in protein extraction into the emulsion. The emulsion under the influence of centrifugal force arising from the center to the periphery of the disk, is discarded on the separating sieve 4, through which it is divided into a suspension and okara. The suspension flows down pipe 2 into a special container. Okara through the outlet pipe 3 is collected in another container. Prevention of clogging of sieves 4 with okara is provided by scraper 16.

Claims (1)

A device for grinding grain of legumes in a soaked form, comprising a housing with a nozzle for outputting the processed material, in which a grinding device is located, containing a movable abrasive disk made in the form of a truncated cone, mounted on the drive shaft and installed with the formation of the required gap between the bottom and sides case, used as a milk collector, and at the bottom of the abrasive disk there are radial channels, a sieve with a mesh size that provides the required separation, teak for cleaning sieves and loading capacity, characterized in that the loading capacity has a grinding chamber, including a neck in the form of a truncated cone for inputting the material to be processed, while the entire inner surface of the neck is made abrasive and equipped with a spiral channel, the lower part of the conical neck and the lower rotating the abrasive disk are located relative to each other congruently and installed with the formation of a gap equal to the size of the required grinding module, in addition, the bottom of the moving ab the active disk is equipped with rectilinear radial pests with notches made in a spiral of Archimedes, providing rotation of the processed material, while a separating sieve is installed under the lower rotating abrasive disk, made with mesh sizes, providing separation of the suspension into fractions, and the grinding device is additionally equipped with a grinding device installed inside the neck on the drive shaft with a gap between the abrasive surface of the neck and the ends of the tetrahedral fingers, while the fraction The present device is a cone screw, the turns of the screw are made in the form of a four fingers.

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