CN212707575U

CN212707575U - Flour mill

Info

Publication number: CN212707575U
Application number: CN202021567267.6U
Authority: CN
Inventors: 冯文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-03-16
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a flour mill, include: the grinding bin, the bin cover which is suitable for being matched and connected with the grinding bin to form a grinding area and the crushing mechanism which is suitable for crushing materials; wherein the cooling water tank that storehouse lid deviates from one side terminal surface in ground powder storehouse is equipped with, and the cooling interval that forms between the circumference outside in ground powder storehouse and the bulkhead in ground powder storehouse. The utility model discloses a milling machine can improve the crushing efficiency to the material and cool off to the milling machine in service.

Description

Flour mill

Technical Field

The utility model relates to a crocus machinery technical field especially relates to a milling machine.

Background

The wood-plastic composite board is a high-tech green environment-friendly novel decorative material which is prepared by mainly using wood (wood cellulose and plant cellulose) as a base material, thermoplastic high polymer material (plastic), processing aid and the like, uniformly mixing and then heating and extruding through die equipment, has the performance and characteristics of both wood and plastic, and is a novel composite material capable of replacing the wood and the plastic.

The method has the advantages that the defective products are inevitably generated in the process of processing and producing the wood-plastic composite board, the defective products are required to be crushed again so as to be restored to a powder state so as to be convenient for a new round of processing operation to form the board in order to be reused to save the production cost and reduce the production loss.

The efficiency of the pulverization in the above-mentioned pulverizing process for defective products directly affects the cost of the pulverizing process, i.e., the lower the pulverizing efficiency, the higher the power consumption, and the higher the processing cost.

In addition, in the crushing process of the defective products, the temperature in the grinding bin can rise along with the high-speed operation of the grinding mill, so that the temperature is possibly too high when the wood chips generated by crushing in a high-temperature state are discharged and cannot be directly put into the processing procedure of the next link for use; and for an integrated mill to operate at high temperatures for extended periods of time may also accelerate the degradation of the overall equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a milling machine to solve the technical problem who improves the crushing efficiency of milling machine and the cooling effect of milling machine operation in-process.

The utility model discloses a milling machine is realized like this:

a mill, comprising: the grinding bin, the bin cover which is suitable for being matched and connected with the grinding bin to form a grinding area and the crushing mechanism which is suitable for crushing materials; wherein

The cooling water tank that the storehouse lid deviates from one side terminal surface in mill flour storehouse was equipped with and the cooling interval that forms between the circumference outside in mill flour storehouse and the bulkhead in mill flour storehouse.

In a preferred embodiment of the present invention, the crushing mechanism includes:

the powder grinding cutter group comprises a circular grinding disc arranged in a powder grinding bin of the powder grinding machine and a plurality of powder grinding cutters uniformly distributed on the circumferential side wall of the circular grinding disc;

elementary garrulous sword subassembly, elementary garrulous sword subassembly is including locating circular mill is towards the first elementary garrulous sword on the storehouse lid a side end face of milling machine to and locate the storehouse lid of milling machine and towards the elementary garrulous sword of second on the side end face of circular mill.

In a preferred embodiment of the present invention, the first primary crushing blade and the second primary crushing blade have the same structure.

In a preferred embodiment of the present invention, the first primary crushing cutter comprises a plurality of first crushing cutters which are enclosed to form a circular ring structure; and

the second primary crushing cutter comprises a plurality of second crushing cutters which are enclosed to form a circular ring structure.

In a preferred embodiment of the present invention, the first primary crushing blade and the second primary crushing blade are arranged concentrically.

In the preferred embodiment of the present invention, the circular grinding disc is further connected with a rotating shaft adapted to drive the circular grinding disc to rotate; the rotating shaft is matched and connected with a power structure suitable for driving the rotating shaft to rotate.

In the preferred embodiment of the present invention, the cooling water tank further has a water inlet and a water outlet.

In the preferred embodiment of the present invention, an annular outer annular wall is disposed at the circumferential outer side of the grinding powder bin, so as to form a cooling space with the circumferential side wall of the grinding powder bin.

In a preferred embodiment of the present invention, a feeding hole suitable for feeding the material into the grinding bin is formed on the bin cover; and

the cooling water tank is of an annular structure around the feed inlet.

In a preferred embodiment of the present invention, a discharge port is further disposed on a circumferential side wall of the grinding bin, and the discharge port is connected with a discharge pipe; and

the discharge pipe penetrates through the cooling section.

By adopting the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a milling machine, elementary garrulous knife tackle spare and crocus knife tackle through the cooperation use to the material that drops into in the crocus storehouse, can carry out preliminary crushing effect to the material through elementary garrulous knife tackle spare earlier, further carries out the grinding operation to the material after preliminary garrulous by crocus knife tackle again, so realize the two-stage grinding operation to holistic material promptly to improve ultimate crocus efficiency.

In addition, the cooling interval that sets up the cooling water tank in cang gai one side and locate the circumference outside in crocus storehouse through the cooperation use realizes the cooling effect to the material after being smashed in crocus storehouse and the crocus storehouse in the operation jointly.

Drawings

Fig. 1 is a schematic view of a first viewing angle of the pulverizer of the present invention;

fig. 2 is a schematic view of a second viewing angle of the pulverizer of the present invention;

FIG. 3 is a schematic cross-sectional view of the pulverizer of the present invention;

fig. 4 is a schematic view of a partial structure of the pulverizer of the present invention;

FIG. 5 is a schematic view of the structure of the milling chamber and the chamber cover;

FIG. 6 is a schematic structural view of a bin cover portion of the pulverizer of the present invention;

FIG. 7 is a schematic view of the fitting structure of the circular grinding disc and the first and second primary crushing blades of the pulverizer of the present invention;

fig. 8 is a schematic structural view of a circular grinding disc of the flour mill of the present invention;

FIG. 9 is a schematic view of a first view angle of the pulverizer of the present invention in a state where the first primary crushing blade and the second primary crushing blade are engaged;

FIG. 10 is a schematic view of a second perspective of the pulverizer of the present invention showing the first primary crushing blade and the second primary crushing blade in a mated state;

FIG. 11 is a schematic view of a second primary crushing blade of the pulverizer of the present invention;

fig. 12 is a schematic view of a partial cross-sectional structure of the pulverizer of the present invention;

fig. 13 is a schematic view of a first view angle matching structure between a bin cover and a second primary crushing blade of a pulverizer according to embodiment 2 of the present invention;

fig. 14 is a schematic view of a second visual angle matching structure between the bin cover and the second primary crushing blade of the pulverizer according to embodiment 2 of the present invention;

fig. 15 is a schematic view of an engaging structure between a bin cover and a second primary crushing blade of a pulverizer according to embodiment 2 of the present invention in an implementation situation;

fig. 16 is a schematic view of a connection structure between the bin cover and the second primary crushing blade of the pulverizer according to embodiment 2 of the present invention in another embodiment;

fig. 17 is a schematic structural view of the second primary crushing blade and the mounting column 15 of the pulverizer according to embodiment 2 of the present invention;

fig. 18 is a schematic structural view of a bin cover of a pulverizer according to embodiment 2 of the present invention.

In the figure: the grinding device comprises a grinding bin 1, a circular grinding disc 2, a grinding cutter 3, a bin cover 4, a cutter frame 5, a first primary crushing cutter 6, a first crushing cutter 61, a second primary crushing cutter 7, a second crushing cutter 71, a central hole 8, a rotating shaft 9, a motor 10, a feeding hole 11, a discharging pipe 12, a hopper 13, a cooling water tank 15, a water inlet 151, a water outlet 152, a cooling section 16 and an outer annular wall 17.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.

Example 1:

referring to fig. 1 to 12, the present embodiment provides a pulverizer, including: the grinding bin comprises a grinding bin 1, a bin cover 4 and a crushing mechanism, wherein the bin cover 4 is suitable for being connected with the grinding bin 1 in a matching mode to form a grinding area, and the crushing mechanism is suitable for crushing materials. Wherein the cooling water tank 15 that is equipped with at the one side terminal surface of the storehouse lid 4 and deviates from the mill flour storehouse 1 of this milling machine to and the cooling interval 16 that forms between the circumference outside of mill flour storehouse 1 and the bulkhead of mill flour storehouse 1.

Under the optional condition, cooling water tank 15 adopts the metal material to make, and can adopt the better metal material of thermal conductivity to make here, adopts the better metal material of thermal conductivity can be to the heat conduction to cooling water tank 15 part of the production in the crocus storehouse 1 of operation, realizes the heat transfer by cooling water tank 15 in order to reach refrigerated effect.

In view of the continuous cooling effect on the grinding powder silo 1 in operation, a water inlet 151 and a water outlet 152 are also provided on the cooling water tank 15, wherein the water inlet 151 is used for introducing cooling water into the cooling water tank 15, and the water which has been heated up after heat transfer in the cooling water tank 15 is conducted out through the water outlet 152. Thus, the cooling effect of the pulverizer in use is effectively ensured by periodically conducting water in and out of the cooling water tank 15.

In more detail, an annular outer annular wall 17 is provided on the circumferential outer side of the milling silo 1, adapted to form a cooling space 16 with the circumferential side wall of the milling silo 1. The outer annular wall 17 can be made of metal materials, and is corrosion-resistant and long in service life. It should be noted that the cooling section 16 here also has an inlet, which is similar to the cooling water tank 15, through which cooling water can be introduced into the cooling section 16, and an outlet, which is suitable for discharging water that has been heated up after heat transfer has been completed in the cooling section 16. Both the inlet and outlet openings here can be prefabricated on the outer circumferential wall 17. Thus, the cooling effect of the pulverizer in use is effectively ensured by periodically conducting water in and out of the cooling water tank 15.

More specifically, the crushing mechanism includes: a milling cutter set and a primary crushing cutter assembly; the primary crushing cutter assembly is used for performing primary crushing operation on materials thrown into the pulverizer to realize primary crushing processing on the materials; the 3 groups of the powder grinding knives are used for further grinding the materials subjected to the first-stage crushing processing.

In detail, the milling cutter 3 group comprises a circular grinding disc 2 arranged in a milling bin 1 of the mill and a plurality of milling cutters 3 uniformly distributed on the circumferential side wall of the circular grinding disc 2; more specifically, the grinding blade 3 is connected with the circular grinding disc 2 through a blade holder 5 in a matching manner, and the blade holder 5 may be connected with the circular grinding disc 2 integrally to form an integral structure or may be a detachable assembly structure, which is not limited in this embodiment. The milling cutter 3 can be fixed to the cutter holder 5 by, for example, but not limited to, screwing. Under such structure, be convenient for change or will grind the use sharpness of powder sword 3 in order to guarantee the use of powder sword 3 after dismantling from circular mill 2 to powder sword 3 after impaired powder sword 3 is repaired to powder sword 3 to avoid the sharpness influence crocus efficiency of powder sword 3.

It should be noted that the edge of the milling cutter 3 is distributed toward the side away from the center of the circular grinding disc 2, and the milling cutter 3 may be directly arranged along the radial direction of the circular grinding disc 2, or may be distributed at a certain acute angle with the radial line of the circular grinding disc 2, which is not limited in this embodiment. In addition, for the plurality of milling knives 3 distributed on the circumferential side wall of the circular grinding disc 2, the knife edges of the milling knives 3 may have the same angular distribution or different angular distributions relative to the radial direction of the circular grinding disc 2, and the present embodiment is not limited in any way.

More specifically, the primary crushing blade assembly includes a first primary crushing blade 6 disposed on an end surface of the circular grinding disc 2 on a side facing the bin cover 4 of the pulverizer, and a second primary crushing blade 7 disposed on an end surface of the bin cover 4 of the pulverizer on a side facing the circular grinding disc 2. In an alternative case, the first primary crushing blades 6 and the second primary crushing blades 7 have the same structure.

In more detail, the first primary crushing cutter 6 comprises a plurality of first crushing cutters 61 which are enclosed to form a circular ring structure; and the second primary crushing cutter 7 comprises a plurality of second crushing cutters 71 which enclose to form a circular ring structure. The first crushing cutter 61 can be optionally matched and fixed with the circular grinding disc 2 through a screw, and the second crushing cutter 71 can also be optionally matched and fixed with the bin cover 4 through a screw, so that the structure is convenient for dismounting the first crushing cutter 61 and the second crushing cutter 71, and the using sharpness of the first crushing cutter 61 and the second crushing cutter 71 in the using process is effectively ensured.

Moreover, in the case where the first primary crushing cutter 6 of the present embodiment includes a plurality of first crushing cutters 61, it is advantageous to perform partial replacement in the case where a use failure occurs in an individual first crushing cutter 61, thereby reducing use costs. Similarly, in the case where the second primary crushing cutter 7 of the present embodiment includes a plurality of second crushing cutters 71, it is advantageous to perform partial replacement in the case where the individual second crushing cutter 71 fails to be used, thereby reducing the use cost.

It should be noted that the first primary crushing blades 6 and the second primary crushing blades 7 are arranged concentrically, so that a through-hole 8 is formed between the first primary crushing blades 6 and the second primary crushing blades 7.

In addition, it should be noted that, the circular grinding disc 2 of the present embodiment is further connected with a rotating shaft 9 adapted to drive the circular grinding disc 2 to rotate; the shaft 9 is coupled to a power structure adapted to drive it in rotation. The power mechanism here may be a pulley mechanism coupled to the rotating shaft 9 and a motor 10 coupled to the pulley mechanism, but this embodiment is not limited to this, and may be any power that can rotate the rotating shaft 9. Of course, the power structure is arranged outside the grinding bin 1, that is, one end of the rotating shaft 9 penetrates through the bin wall of the grinding bin 1 to extend out of the grinding bin 1 to be connected with the power structure in a matching mode.

It should be noted that the grinding powder bin 1 is provided with an opening adapted to be blocked by the bin cover 4, and in the case of the cylindrical grinding powder bin 1, one axial end of the grinding powder bin 1 is provided with an opening. Under such a structure, the cooling section 16 is the cooling of the circumferential surface forming the cylindrical structure, and the cooling water tank 15 is the cooling of the axial end of the cylindrical structure, so that the heat exchange area of the outer side wall part of the grinding powder bin 1 is effectively increased, and the cooling effect is optimized.

Under an optional implementation mode, the bin wall and the bin cover 4 of the grinding bin 1 are made of metal materials, so that heat generated in the grinding bin 1 in the using process can be quickly transmitted to the cooling area 16 through the bin wall and transmitted to the cooling water tank 15 through the bin cover 4, and the cooling efficiency of the grinding bin 1 is improved.

Furthermore, in the crushing mechanism according to the present embodiment, when the bin cover 4 covers the opening of the grinding bin 1, the first primary crushing blade 6 on the bin cover 4 and the second primary crushing blade 7 on the circular grinding disc 2 are distributed oppositely, and a gap suitable for passing the material is formed between the two.

Specifically, a feed inlet 11 suitable for feeding is provided on the cover 4, and a hopper 13 can be disposed on the feed inlet 11. The feeding hole 11 can be opened at a position on the bin cover 4 corresponding to the central hole 8 formed between the first primary crushing blade 6 and the second primary crushing blade 7, and the cooling water tank 15 is in a ring structure around the feeding hole 11, so that the material can directly enter the first primary crushing blade 6 and the second primary crushing blade 7 through the feeding hole 11 to be crushed.

In addition, it should be noted that a discharge opening is also provided on the circumferential side wall of the milling chamber 1, which discharge opening is connected to a discharge pipe 12; and the discharging pipe 12 penetrates the cooling section 16, that is, a matching hole suitable for the discharging pipe 12 to extend out is formed on the outer annular wall 17, so that the discharging pipe 12 does not influence the normal adaptation of the cooling section 16 in the process of discharging the crushed material in the grinding bin 1, that is, a good sealing effect is formed at the contact part between the outer annular wall 17 and the discharging pipe 12, so as to avoid water overflow in the cooling section 16.

The specific milling principle for the mill of this embodiment is as follows:

the material is fed into a central hole 8 formed between the first primary crushing knife 6 and the second primary crushing knife 7 through a feed port 11 on the bin cover 4, the second primary crushing knife 7 rotates synchronously along with the rotation of the circular grinding disc 2, in the process, the material is primarily crushed by the first primary crushing knife 6 and the second primary crushing knife 7 to be crushed, the primarily crushed material enters a gap formed between the first primary crushing knife 6 and the second primary crushing knife 7, and the material at the gap formed between the first primary crushing knife 6 and the second primary crushing knife 7 is further crushed and refined under the friction action of the first primary crushing knife 6 and the second primary crushing knife 7. For the refined materials, the materials are sent to the lower part of the powder grinding cutter 3 on the circular grinding disc 2 to be further crushed by the powder grinding cutter 3 due to the action of centrifugal force, and finally the completely crushed materials are sucked out by the suction fan through the discharge hole 12.

Example 2:

referring to fig. 13 to 18, on the basis of the flour mill of embodiment 1, the flour mill provided by this embodiment can also adjust the degree of material crushing and refining, because the specific refining of the material is realized by the mutual friction between the first primary crushing blade 6 and the second primary crushing blade 7, and thus the adjustment of the degree of material crushing and refining can be realized by adjusting the vertical distance between the first primary crushing blade 6 and the second primary crushing blade 7. And the connection between the bin cover 4 and the grinding bin 1 is fixed and not adjustable, so that the sealing property of the space in the grinding bin 1 during grinding is ensured, and the materials are prevented from dissipating after being refined. Therefore, the present embodiment achieves the effect of adjusting the vertical gap between the second primary crushing blade 7 and the first primary crushing blade 6 by adjusting the assembling process between the second primary crushing blade 7 and the bin cover 4.

In detail, the second primary crushing knife 7 is matched and connected with the bin cover 4 through a hollow and cylindrical assembling column 15; the second primary crushing knife 7 is matched and fixed with one axial end of the assembling column 15; the assembly column 15 has a feed opening 16 arranged concentrically with the feed opening 11. The second primary crushing blade 7 here includes a plurality of second crushing blades 71 which can be fastened to one axial end of the fitting post 15 by screws.

In addition, more specifically, a circular matching hole 17 through which the assembling column 16 penetrates is formed in the bin cover 4 around the circumferential direction of the feed port 11, and after the assembling column 16 penetrates through the circular matching hole 17, the assembling column is matched and connected with the second primary crushing knife 7 towards one end of the first primary crushing knife 6; the other end of the assembly column 16, which is far away from the second primary crushing knife 7 in the axial direction, is matched and connected with an annular disc 19, wherein the annular disc 19 can be welded and fixed with the assembly column 16 or can be integrally processed and formed with the assembly column 16; the annular disc 19 is provided with a through hole 20 which is concentric with the feeding hole 17 and is communicated with the feeding hole; and the annular disc 19 is matched and connected with the bin cover 4 through a screw rod adjusting structure.

In an alternative embodiment, the screw adjustment structure comprises a first screw structure and a second screw structure provided on the annular disc 19 and evenly and sequentially at intervals around the circumferential direction of the through hole 20; namely, the first screw structures and the second screw structures are alternately distributed. Wherein the first screw structure is suitable for simultaneously penetrating the annular disc 19 and the bin cover 4 to realize the matching between the annular disc 19 and the bin cover 4; the second screw structure is only suitable for penetrating the annular disc 19, one end of the second screw structure penetrating the annular disc 9 and facing the bin cover 4 abuts against the end face, away from the second primary crushing knife 7, of the bin cover 4, namely, the annular disc 19 is firmly connected with the bin cover 4 through the matching of the first screw structure and the second screw structure, the distance between the annular disc 19 and the bin cover 4 is adjusted through the matching of the first screw structure and the second screw structure, and the adjustment of the distance corresponds to the vertical gap between the second primary crushing knife 7 and the first primary crushing knife 6.

Referring to fig. 15 and 16 of the present embodiment, fig. 15 is a schematic diagram showing an engaging structure of the bin cover 4 and the second primary crushing blade 7 in an implementation case, in which there is no vertical gap between the bin cover 4 and the annular disc 9, and at this time, the corresponding vertical gap between the first primary crushing blade 6 and the second primary crushing blade 7 is also relatively large; fig. 16 is a schematic view showing an engaging structure of the bin cover 4 and the second primary crushing blade 7 in another embodiment, in which a certain vertical gap exists between the bin cover 4 and the annular disk 9, and the vertical gap between the corresponding first primary crushing blade 6 and the second primary crushing blade 7 is reduced as compared with the case of fig. 15. That is, the vertical gap between the first primary crushing blade 6 and the second primary crushing blade 17 is in inverse proportion to the vertical gap between the annular disk 9 and the bin cover 4 facing away from the second primary crushing blade 7.

Referring to fig. 15 and 16 of the present embodiment, the first screw structure includes a first screw 21 adapted to be inserted into the bin cover 4 after one end of the first screw passes through the annular disc 19, and a first end cover 22 sleeved on an end of the first screw 21 away from the bin cover 4. The second screw structure includes a second screw 24 having one end penetrating the annular disc 19 and abutting against the side end surface of the cover 4 facing the annular disc 19, a second end cap 26 sleeved on one end of the second screw 24 away from the cover 4, and a nut 25 sleeved on a portion of the second screw 24 between the second end cap 26 and the annular disc 19. In a specific use process, since one end of the first screw 21 penetrating through the annular disc 19 is inserted into the bin cover 4, therefore, the vertical clearance between the annular disc 19 and the cover 4 can be adjusted by adjusting the depth of the first screw 21 inserted into the cover 4, in order to effectively maintain the stability of the position of the annular disc 19 relative to the bin cover 4 after the depth of the first screw 21 inserted into the bin cover 4 is adjusted, the present embodiment is implemented by a second screw structure, in detail, the second screw 22 is not inserted into the bin cover 4 after penetrating through the annular disc 19, but the second screw 22 is abutted against the end face of the bin cover 4 facing the annular disc 19, and the stability of the position of the annular disc 19 relative to the bin cover 4 can be realized only by abutting the second screw 22 against the bin cover 4 facing the annular disc 19 and matching with the nut 25 to realize the relative locking between the second screw 22 and the annular disc 19.

It should be noted that in the mill of the present embodiment, the cooling water tank 15 is provided on the annular disk 19, and is not provided directly on the bin cover 4.

The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

Claims

1. A mill, characterized in that it comprises: the grinding bin, the bin cover which is suitable for being matched and connected with the grinding bin to form a grinding area and the crushing mechanism which is suitable for crushing materials; wherein

2. A mill according to claim 1, characterized in that the crushing means comprise:

3. A mill according to claim 2, characterized in that the first primary crushing blade and the second primary crushing blade are of the same construction.

4. Flour mill according to any of the claims 2 or 3, characterized in that the first primary crushing knives comprise a number of first crushing knives enclosing to form a circular ring structure; and

5. Flour mill according to claim 4, characterized in that the first primary crushing blades and the second primary crushing blades are arranged in concentric circles.

6. A mill according to claim 5, characterized in that said circular grinding disc is further connected to a spindle adapted to drive the rotation of the disc; the rotating shaft is matched and connected with a power structure suitable for driving the rotating shaft to rotate.

7. A mill according to claim 1, characterized in that the cooling water tank is provided with a water inlet and a water outlet.

8. Flour mill according to claim 1, characterized in that an annular outer ring wall is provided on the circumferential outer side of the mill bin, adapted to form a cooling zone with the circumferential side wall of the mill bin.

9. A mill according to claim 1, characterized in that the bin cover is provided with a feed opening adapted to feed material into the mill bin; and

the cooling water tank is of an annular structure around the feed inlet.

10. A mill according to any of claims 1 or 9, characterized in that a discharge opening is provided in the circumferential side wall of the mill silo, which discharge opening is fitted with a discharge pipe; and

the discharge pipe penetrates through the cooling section.