KR20150047273A - Multipurpose mill - Google Patents

Abstract

The present invention relates to a multipurpose grinder. According to the present invention, the multipurpose grinder includes: a housing that includes an inlet through which an object to be ground is inserted and an outlet through which the ground object is discharged; a pair of impellers that include center parts and a plurality of wing parts, radially extended to the outside to be placed apart from each other, and are installed in the housing; and a driving body which drives the impellers. On the wing parts, vortex surfaces having convex protrusions are formed. On the impellers, the vortex surfaces are formed to face each other. When the grinder of the present invention is used, the objects is ground by collision between the objects and by collision between the object and air. Therefore, impurities are prevented from entering into the objects yet to be ground. The grinder can ground the object in a dry-type manner and a wet-type manner. Moreover, the grinder indirectly grinds the object by operation of the grinder and thus can maintain quality of the object. A zone where the wind speed is higher than the rotation speed of the impellers is formed by the shape of the impellers. Therefore, the grinder can grind the object into uniform particles. Moreover, the grinder can maintain to be at low temperatures when operated and thus can prevent quality of the object from being deteriorated by the temperature.

Description

MULTIPURPOSE MILL

TECHNICAL FIELD The present invention relates to a multipurpose pulverizer, and more particularly, to a multipurpose pulverizer capable of pulverizing various pulverization targets such as food raw materials and paints into uniform particles.

Generally, a pulverizer is used for pulverizing various pulverization objects such as food raw materials, paints, etc. into uniform particles. Among them, the food raw material crusher is used for crushing cereals using a crushing blade. Most of them are not crushed to the necessary grain size through a single crushing process, and the worker repeatedly grinds the crushed material And crushed to a desired particle size. Therefore, there is a problem that not only a lot of work time is required for manual grinding, but also work efficiency is lowered. In order to solve these problems, the pulverized pulverized product in one grain grinder was supplied automatically, not by the manual operation of the operator, so that the number of times of pulverizing the food ingredient was increased several times. However, when the object to be pulverized is passed through a multipurpose pulverizer through a plurality of pulverizing blades as described above, it is impossible to obtain a pure food pulverized product by mixing the pulverizing blade powder with the object to be pulverized by the friction between the pulverizing blades. In addition, since the quality of the raw material of the food is lowered because it is directly pulverized by the pulverizing blade, if the pulverizing blade becomes dull after a certain period of time, the time taken to pulverize the food material with the desired particle size is increased, In the case of cereals, there is a problem of luxury.

Therefore, in recent years, there is a need for a multipurpose grinder capable of preventing impurities from mixing in the process of grinding a food material, capable of minimizing heat generation while maintaining the quality of a food material, and capable of grinding a food material with a uniform particle size do.

KR 10-2009-0051393 A

A problem to be solved by the present invention is to provide a multipurpose pulverizer capable of finely pulverizing various pulverization objects such as food raw materials and paints into uniform particles.

In order to solve the above-described problems, according to the present invention, there is provided a dust collecting apparatus comprising: a housing including a supply port into which a pulverizing object is charged and an outlet through which a pulverized object to be pulverized is discharged;

A pair of impellers installed in the housing, the impeller including a plurality of blades extending in a radially outward direction from the center; And

And a driving body for driving the pair of impellers,

A vortex surface having a convex protrusion is formed in the wing portion,

Wherein the pair of impellers are installed so that the vortex surfaces formed on the impellers are opposed to each other.

According to an embodiment of the present invention, it is preferable that the projecting portion has a circular front face shape.

Further, it is preferable that the pair of impellers have the same shape.

Further, the driving body is a motor,

Preferably, the motor and the impeller are interlocked by a rod-shaped rotating shaft beam.

Preferably, the gap between the pair of impellers is adjusted by the rotating shaft beam.

The vane portion may have a back surface formed on a surface opposite to the vortex surface,

And the back surface is formed to be convexly protruded from the center portion.

In addition, it is preferable that the vortex portion is formed so that the vortex surface protrudes more than the center portion.

The plurality of vanes may be any one of a 4-blade, a 6-blade, and an 8-blade.

According to the present invention, by crushing the object to be crushed by the collision between the objects to be crushed and the collision between the object and the air during the crushing process, foreign matter can be prevented from being mixed with the crushed object to be crushed, Not only the direct grinding by the grinder but also the indirect grinding by the driving of the grinder, the quality of the food raw material can be maintained. Further, by forming the multi-tornado by the shape of the impeller, it is possible to prevent the object of grinding from being caught in one position of the device, and to finely grind the material into uniform particles. Further, since the low-temperature state can be maintained even when the multipurpose pulverizer is driven, it is possible to prevent the food material from being deteriorated by the temperature.

1 is a schematic view of a multipurpose grinder according to an embodiment of the present invention.
2 is a perspective view and a cross-sectional view of an impeller according to an embodiment of the present invention.
3 is a photograph of an impeller according to an embodiment of the present invention.
4 is a photograph of an impeller according to another embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to preferred embodiments. It will be apparent to those skilled in the art, however, that these examples are provided to further illustrate the present invention, and the scope of the present invention is not limited thereto.

The crusher can be classified into a roll crusher, a sand crusher, an air flow crusher, a cyclone mill, a high speed crusher, and the like according to the driving method. Among them, Cyclone Mill is suitable for producing fine particle powders, can be miniaturized, and is suitable for mass production as well as small quantities. The particle size of the powder can be adjusted by rotating speed or wind speed, and it can be dried at the same time as grinding. In stable food processing, fine and uniform grain size are required. Therefore, the fine powder milled in Cyclone Mill is fine and does not deviate, and a lot of starch remains on the fine powder surface. In other words, the starch-damaged glass is low and the processability to the product is excellent. Since the cyclone mill is a self-pulverizing method in which pulverization objects are crushed by colliding with each other, the pulverizing blade or the like can be prevented from being worn and mixed with the powder to be pulverized. In addition, since the amount of air generated is large and the temperature rise is small, it is possible to prevent the grinding target from being ghosted during the grinding process.

The present invention specifies the shape of the wing portion 124 formed on the swirling surface 124a of the impeller 120 so that the object to be ground is smoothed more smoothly by the flow of air generated in the wing portion 124. [

2 is a perspective view and a cross-sectional view of an impeller according to an embodiment of the present invention, and FIG. 3 is a photograph of an impeller according to an embodiment of the present invention .

As shown in FIG. 1, the multi-function mill according to the present invention comprises a housing 110 including a supply port 112 through which a pulverization object is introduced and an outlet 114 through which a pulverized object to be pulverized is discharged;

A pair of impellers (120) formed in the housing (110) and including a plurality of wings (124) extending apart from each other in a radially outward direction from the central portion (122); And

And a driving body for driving the pair of impellers 120,

The vane portion 124 is formed with a vortex surface 124a having a convex protrusion 124c,

The pair of impellers 120 are installed so that the vortex surfaces 124a formed on the impellers 120 are opposed to each other.

The pulverizing object flowing into the supply port 112 of the housing 110 is caused to flow by the flow of the air generated by the rotation of the impeller 120. In this process, the pulverization occurs due to the shear force generated when air and the object to be ground collide with each other, or the shearing force generated when the object to be ground flowing by the flow of air collides with each other. In this process, the object to be pulverized is discharged to the discharge port 114 of the housing 110. The pulverization particle size of the object to be pulverized can be adjusted in proportion to the flow rate of the air rotationally driven in the housing 110 and the time of exposure to the flowing air. That is, in the air stream type pulverizer according to the present invention, since the pulverized particles are uniformly pulverized, the time and the pulverization intensity required for the pulverizing process are controlled in order to control the particle size. To this end, the present invention controls the rotation speed of the impeller 120 to adjust the particle size of the object to be ground, and adjusts the particle size of the object to be ground by controlling the rotational drive time of the impeller 120 before the object is introduced and discharged .

As shown in FIGS. 1 and 2, the impeller 120, which is driven to indirectly crush the object to be crushed, can be roughly divided into a center portion 122 and a wing portion 124. A rotating shaft for rotating the impeller 120 is coupled to the center of the center portion 122 and a wing portion 124 is coupled to the center portion 122. According to an embodiment of the present invention, when the center portion 122 rotates, the wing portion 124 is positioned at the center portion 122 The wings 124 are equally spaced apart from each other to prevent the impeller 120 from being driven in an eccentrically connected state. That is, the wing portions 124 extend radially outwardly from the center of the center portion 122 at regular angular intervals. At this time, the impeller may be formed of any one of four blades having four blades 124, six blades having six blades, and eight blades having eight blades.

The pair of impellers 120 are rotationally driven in opposite directions to each other by a driving body that drives each of them. When the driving body is selected as the motor 130, a rod-shaped rotating shaft beam 140 is provided between the impeller 120 and the motor 130 so that the impeller 120 is moved to the motor 130, The impeller 120 may be directly driven to rotate. That is, the method in which the impeller 120 is rotationally driven is not limited to any one, and may be driven by various methods such as a general motor 130, a device that is rotationally driven using a magnetic force or the like. The swirling flow is formed such that the swirling surface 124a of the impeller 120 rotating counterclockwise to the impeller 120 is opposed to each other, so that an air flow generating a shearing force is generated by the impeller. In addition, shearing forces are generated when the objects to be crushed collide with each other, moving along the air flow. The rotational speed of the impeller 120 rotating in the opposite direction to that of the impeller 120 may be the same as the rotational speed of the impeller 120 rotated in the opposite direction to that of the impeller 120, And can rotate at different speeds. As described above, in order to rotate the impeller 120 rotating at a different speed from the impeller 120 rotating at a different speed, a pair of impellers 120 are connected to a pair of driving bodies having different rotational speeds, The two impellers 120 can be connected to each other by a gear or a pulley.

The present invention forms a curvature in the vortical surface 124a and the back surface 124b which are the front surfaces of the shape of the impeller 120 so that the object to be ground can smoothly flow in the housing 110. [ The wing portion 124 has a rear surface 124b formed on the opposite side of the vortex surface 124a and a rear surface 124b of the wing portion 124 protrudes more than the center portion 122. [ By this shape feature, the weight of the wing portion 124 radially outward of the center of the impeller 120 is increased, and the impeller 120 is driven to rotate uniformly, so that the shearing force can be uniformly applied to the object to be ground .

In addition, the vane portion 124 may be formed such that the vortical surface 124a protrudes from the center portion 122. The pair of impellers 120 are provided so as to face each other with a vortex surface 124a formed on the front surface of the wing portion 124, respectively. Therefore, when the vortical surface 124a of the vortex portion 124 is convexly protruded, when the vortex surface 124a faces each other during the rotation of the impeller 120, the vortical surface 124a and the vortical surface 124a A narrow space is formed between the electrodes 124a and 124a. As a result, the wind speed can instantaneously be increased, so that it can flow smoothly to the food material, and the food material is smoothed more smoothly.

In addition, by forming the protruding portion 124c on the vortex surface 124a, a vortex is generated in the protruding portion 124c, and the shearing force can be applied to the object to be ground while allowing the object to be ground to flow once again. In addition, due to the protruding portion 124c, the area between the vortical surface 124a and the vortical surface 124a facing each other is narrowed, and the wind speed forcibly increases due to the pressure difference already existing. As described above, when the wind speed instantaneously increases, the object to be pulverized can flow smoothly, and the object to be pulverized is smoothed more smoothly. As a result, the convection milling efficiency and the pressure milling efficiency can be increased by the protruding portion 124c.

In particular, the specific gravity of dried vegetables is less than about 1.06, which is relatively low. When a grinding target having a low specific gravity such as dry vegetables is crushed, if a concave groove is formed on the vortical surface 124c rather than a convex projection 124c (see FIG. 4), the grinding target having a low specific gravity is stagnated So that a caking phenomenon in which the pulverized particles are hardened is generated, whereby the volume of the grooves is substantially reduced, and the tornado effect is reduced, which may ultimately lower the pulverization efficiency. However, since the multipurpose pulverizer according to the embodiment of the present invention has convex protrusions 124c formed on the swirling surface 124c, it is possible to prevent the occurrence of the caking phenomenon even when the pulverization object having a low specific gravity is pulverized, Can be prevented from deteriorating.

Further, by forming the shape of the back surface 124b and the vortex surface 124a of the wing portion 124, heat generated in the process of pulverizing the food material can be minimized. Therefore, it is possible to prevent the quality of the object to be pulverized from deteriorating due to heat, to increase the production amount by the multi-tornado formed by the friction between the wing portion 124 and air, and to smooth the air flow inside the housing 110 Time can be minimized.

In addition, since the particle size of the particles to be ground can be adjusted in a customized manner, the precision is improved, and it is not necessary to repeatedly pulverize the object to be pulverized, thereby saving energy consumption. In addition, it can be mixed according to the kind of the food raw material to be crushed, and can be mixed with the wet type food raw material and can be crushed. Conventional food raw material pulverizing apparatuses do not form multi-tornadoes, and therefore, wet type food raw materials have a high specific gravity, and are often sandwiched between grinding blades and gaps between apparatuses before grinding. However, according to the present invention, the food raw material which is being crushed is floated one more time due to the vortex generated in the protruding portion 124c and the multiple tornadoes generated by the driving of the impeller, so that other food raw materials, air and shearing are generated, . Therefore, it is possible to grind smoothly by receiving a shear force instead of grasping it in a device or the like.

Here, the gap between the pair of impellers 120 can be adjusted by another method for controlling the particle size of the object to be pulverized. For example, when the impeller 120 is coupled by the rotating shaft beam 140, the rotating shaft beam 140 may be provided with a screw structure or a sliding structure so as to adjust the position of the impeller 120 from the end of the rotating shaft, The distance between the vortex surfaces 124a of the pair of impellers 120 can be adjusted. Accordingly, the air velocity generated between the impellers 120 can be controlled, and thus the particle size of the object to be ground can be adjusted to various ranges.

It is preferable that the projecting portion 124c formed on the vortical surface 124a of the wing portion 124 has a rounded frontal shape as viewed from the front as shown in Fig. In other words, the grinding target flowing through the streamlined projected portion 124c and the grinding target flowing through the narrowed gap of the swirling surface 124a facing each other can flow smoothly So that it can be provided.

Here, it is preferable that the pair of impellers 120 have the same shape. That is, the shape of the protruding portion 124c and the shape of the protruding portion 124c radially inward and radially outward of the impeller 120 when the impeller 120 is rotated in the reverse direction And the narrow gap positions of the vortical surface 124a located thereon are made to coincide with each other, thereby making the shearing force acting on the object to be ground uniform. In this case, the wing portion 124 is a four-blade type extending in four radially outward directions from the central portion 122. However, the number of the wing portions 124 is not limited to this and may be six or eight- have.

Additionally, by forming micro embossing or scratches on the protrusions 124c of the multipurpose pulverizer according to an embodiment of the present invention or the grooves of the multipurpose pulverizer according to another embodiment of the present invention, By inducing the flow, the grinding efficiency can be increased.

Further, in order to prevent the multipurpose pulverizer according to the present invention from being heated, a cooling fan may be provided on the outside of the driving body so as to be cooled by air cooling.

On the other hand, in the above-described embodiment, the food material is used as the object of grinding, but the multipurpose grinder according to the present invention is not only used for grinding food raw materials, but can be used for grinding all kinds of grinding objects such as paints .

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

110: housing 112:
114: outlet 120: impeller
122: center portion 124: wing portion
124a: vortex surface 124b: rear surface
124c: protrusion 130: motor
140: rotating shaft beam

Claims (8)

A housing including a supply port into which a pulverizing object is input and an outlet through which a pulverized object to be pulverized is discharged;
A pair of impellers installed in the housing, the impeller including a plurality of blades extending in a radially outward direction from the center; And
And a driving body for driving the pair of impellers,
A vortex surface having a convex protrusion is formed in the wing portion,
Wherein the pair of impellers are installed such that the vortex surfaces formed on the pair of impellers face each other.
The method according to claim 1,
Wherein the projecting portion has a circular front face shape.
The method according to claim 1,
Wherein the pair of impellers have the same shape.
The method according to claim 1,
Wherein the driving body is a motor,
Wherein the motor and the impeller are interlocked by a rod-shaped rotary shaft beam.
5. The method of claim 4,
And the spacing between the pair of impellers is adjusted by the rotating shaft beam.
The method according to claim 1,
Wherein the vane portion has a back surface formed on a surface opposite to the vortex surface,
Wherein the back surface is formed to be convexly protruded from the center portion.
The method according to claim 1,
Wherein the vane portion has the vortical surface protruding from the center portion.
The method according to claim 1,
Wherein the plurality of vanes are any one of a 4-blade, a 6-blade, and an 8-blade.

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