Sand making grinding roller mechanism and Raymond mill

Abstract

The utility model discloses a sand-making grinding roller mechanism and a Raymond mill. The sand-making grinding roller mechanism comprises a base, and a shell, a sand-making mechanism and a grinding ring matched with the sand-making mechanism are connected above the base; the sand making mechanism comprises a main shaft, a supporting frame and a grinding roller device, the supporting frame is connected with the main shaft, and the grinding roller device is rotatably connected with the supporting frame; the grinding ring is arranged on the outer side of the sand making mechanism and is fixedly connected with the base; wherein the grinding roller device comprises a grinding roller sleeve and a grinding roller, the grinding roller sleeve is hung on the supporting frame, the grinding roller is connected with the grinding roller sleeve, and the grinding roller is provided with a protruding part which enables a gap to be always formed between the grinding roller and the grinding ring. According to the utility model, a gap can be always formed between the grinding roller and the grinding ring through the convex part, so that the grinding roller is prevented from being excessively attached to the grinding ring, the purpose of producing sand materials with specified particle sizes is achieved, and the sand forming rate and the sand making stability can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to ore processing technical field especially relates to a kind of sand making roller mechanism and Raymond machine. BACKGROUND

[0002] Raymond machine usually refers to the grinding machine in grinding equipment, also called Raymond mill or Raymond machine. This equipment is usually used in the field of fine powder processing of ore, building materials and chemical raw materials. It adopts vertical structure, and the raw materials are ground by a series of rollers to produce various different particle size powder products. The gap between the existing Raymond mill roller and the grinding ring is usually adhered, and it is difficult to produce the same particle size product. Therefore, a Raymond machine capable of producing specified particle size is needed. SUMMARY

[0003] To solve the above technical problems, the utility model provides a kind of sand making roller mechanism and Raymond machine, in the process of grinding roller around grinding ring rotation, always leave gap between grinding roller and grinding ring, can produce specified particle size sand, improve the sanding rate and the stability of sand making.

[0004] Specifically, the utility model discloses a kind of sand making roller mechanism, including:

[0005] The bottom is connected with the shell, sand making mechanism and grinding ring matched with sand making mechanism above the bottom;

[0006] The sand making mechanism includes main shaft, support frame and grinding roller device, the support frame is connected with the main shaft, and the grinding roller device is rotatably connected with the support frame;

[0007] The grinding ring is arranged outside the sand making mechanism and is fixedly connected with the bottom;Wherein,

[0008] The grinding roller device includes grinding roller sleeve and grinding roller, the grinding roller sleeve is rotatably connected with the support frame, the grinding roller is connected with the grinding roller sleeve, and the grinding roller has protruding portion that always forms gap between grinding roller and grinding ring.

[0009] Further, the projection shape of the grinding roller is circular.

[0010] Further, the protruding portion is spiral structure, and its projection shape is circular, and it is arranged on the side wall of the grinding roller from top to bottom, and the number of turns of the protruding portion is between 1.015-1.05.

[0011] Further, the protruding portion is at least three mutually parallel, staggered rectangular structures, sequentially distributed on the side wall of the grinding roller, and the total length of the protruding portion is 1.1-1.2 times the circumference of the grinding roller.

[0012] Further, the projection shape of the grinding roller is a Lai Luo triangle.

[0013] Further, the convex part is a spiral structure, and the projection shape is a circle, which is arranged on the side wall of the grinding roller from top to bottom, and the number of turns of the convex part is between 1.015 and 1.05.

[0014] Further, the base is further provided with a spade mechanism, the spade mechanism comprises a spade holder and a spade, the spade holder is fixedly connected with the main shaft, and the spade is arranged above the spade holder and is inclined to the base.

[0015] Further, the Raymond mill with the sand making grinding roller mechanism further comprises a blowing mechanism, the blowing mechanism comprises a fan and an annular air duct, the fan is in communication with the annular air duct, the annular air duct is arranged outside the shell and is in communication with the inside of the shell through an air inlet, and the horizontal height of the air inlet is lower than the horizontal height of the grinding ring.

[0016] Further, the Raymond mill with the sand making grinding roller mechanism further comprises a screening mechanism arranged at the top of the shell to filter materials.

[0017] In another aspect, the utility model also discloses a Raymond mill, which comprises the sand making grinding roller mechanism of any one of the above.

[0018] The utility model has the advantages of:

[0019] The convex part is arranged between the grinding roller and the grinding ring, so that a gap is always present between the grinding roller and the grinding ring, the sand material of a specified particle size can be produced, the grinding roller and the grinding ring are prevented from being excessively attached to each other, the sand material of a specified particle size is produced, and the sand production rate and the sand making stability are effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description.

[0021] Figure 1 is a sectional view of the Raymond mill with the sand making grinding roller mechanism;

[0022] Figure 2 is a schematic view of the grinding roller device;

[0023] Figure 3 is a side view of the cooperation between the grinding roller and the grinding ring;

[0024] Figure 4 is an enlarged view of the cooperation between the convex part and the grinding ring;

[0025] Figure 5 is a schematic view of the movement track of the convex part on the grinding ring.

[0026] Figure 6 is a magnified view of the protrusion and the other embodiment of the grinding ring;

[0027] Figure 7 is a schematic view of another embodiment of the trajectory of the protrusion on the grinding ring;

[0028] Figure 8 is a schematic view of the grinding roller as a Lelos triangle;

[0029] Figure 9 is a top view of the grinding roller as a Lelos triangle.

[0030] The reference signs involved in the drawings are as follows: base 1, shell 2, feed port 21, sand making mechanism 3, main shaft 31, support frame 32, grinding roller device 33, grinding roller sleeve 331, grinding roller 332, protrusion 333, protrusion movement trajectory 334, gap 335, grinding ring 4, grinding ring expansion surface 41, shovel mechanism 5, shovel holder 51, shovel 52, air blowing mechanism 6, annular air duct 61, air inlet 62. DETAILED DESCRIPTION

[0031] The utility model will be further explained in detail in connection with the drawings.

[0032] As Figures 1-9 shown, the utility model discloses a kind of sand making grinding roller mechanism, comprising:

[0033] Base 1, the upper portion of base 1 is connected with shell 2, sand making mechanism 3 and the grinding ring 4 matched with sand making mechanism 3;

[0034] Sand making mechanism 3 includes main shaft 31, support frame 32 and grinding roller device 33, support frame 32 is connected with main shaft 31, and grinding roller device 33 is rotatably connected with support frame 32;

[0035] Grinding ring 4 is arranged at the outside of sand making mechanism 3, and is fixedly connected with base 1;Wherein,

[0036] Grinding roller device 33 includes grinding roller sleeve 331 and grinding roller 332, grinding roller sleeve 331 is rotatably connected with support frame 32, grinding roller 332 is connected with grinding roller sleeve 331, and grinding roller 332 is provided with protrusion 333 on grinding roller 332, so that gap 335 is always formed between grinding roller 332 and grinding ring 4.

[0037] The protrusion 333 of the utility model can make grinding roller 332 and grinding ring 4 always exist a gap 335, can produce sand material of specified granularity, avoid grinding roller 332 and grinding ring 4 excessive adhesion, reach the purpose of producing sand material of specified granularity, the setting of this gap can effectively reduce powder rate, improve sand rate.

[0038] When the projection shape of the grinding roller 332 is a circle, the protruding part 333 can have the structure as shown in Figure 4 、 5 When the structure of the grinding roller 332 is a cylinder, the protruding part 333 has a spiral structure, the projection shape of the protruding part 333 is also a circle, and the protruding part 333 is arranged on the side wall of the grinding roller 332 from top to bottom. The reasonable number of turns of the protruding part 333 is between 1.015 and 1.05. When the grinding roller 332 rotates around the grinding ring 4, the protruding part 333 is always in contact with the grinding ring 4, so that the gap 335 always exists. In addition, when the protruding part 333 is in contact with the grinding ring 4, the movement track of the spiral structure of the protruding part 333 is uniformly in contact with the grinding ring 4, so that the grinding ring 4 is uniformly worn, and the service life of the grinding ring 4 is improved.

[0039] In another embodiment of the present scheme, which is different from the above-mentioned embodiment, as shown in Figure 6 、 7 The protruding part 333 has at least three parallel and staggered rectangular structures, which are arranged in sequence on the side wall of the grinding roller 332, and the total length of the protruding part 333 is 1.1-1.2 times the circumference of the grinding roller 332. Similarly, when the grinding roller 332 rotates around the grinding ring 4, the protruding part 333 is always in contact with the grinding ring 4, and the movement track of the protruding part 333 is uniformly in contact with the grinding ring 4, so that the grinding ring 4 is uniformly worn.

[0040] In addition, in other embodiments of the present scheme, as shown in Figures 8-9 When the projection shape of the grinding roller 332 is a Reuleaux triangle, and the structure of the grinding roller 332 is a Reuleaux triangular body, the protruding part 333 is arranged on the side wall of the grinding roller 332, and the projection shape of the protruding part 333 is a circle. Compared with the cylindrical grinding roller, the Reuleaux triangular body has the following advantages. During the movement of the Reuleaux triangular body, when the material enters between the grinding roller 332 and the grinding ring 4, the gap 335 between the grinding roller 332 and the grinding ring 4 changes from small to large and then to small, so that the material can be gradually crushed. In addition, the extrusion angle of the material by the side wall of the Reuleaux triangular body is greater than that by the side wall of the cylindrical body, which facilitates the extrusion and crushing of the material, and improves the processing efficiency.

[0041] The base 1 is also provided with a shovel mechanism 5, which includes a shovel holder 51 and a shovel 52. The shovel holder 51 is fixedly connected with the main shaft 31, and the shovel 52 is installed above the shovel holder 51 and is inclinedly arranged with the base 1. When the main shaft 31 rotates, the shovel 52 is also rotated to shovel the material at the bottom which is not ground to the right position to the gap between the grinding roller 332 and the grinding ring 4 for further grinding.

[0042] In some embodiments of the utility model, still include blowing mechanism 6, blowing mechanism includes fan (not shown), annular air duct 61, fan and annular air duct 61 communicate, annular air duct 61 is located at the outside of shell 2, and through air inlet 62 with the inside of shell 2 communicate, and the horizontal height of air inlet 62 is lower than the horizontal height of grinding ring 4. The airflow generated by fan enters the inside of shell 2 through annular air duct 61, air inlet 62, and blows up the particles at the bottom.

[0043] In order to filter and screen the particles, the Raymond mill further comprises a screening mechanism (not shown) arranged at the top of the shell 2 for filtering the material meeting the size requirement, and the screening mechanism is a prior art which will not be described in detail. In addition, in order to make the particles reach the top, the support frame 32 is preferably a plum-blossom frame, and the particles pass through the gaps of the plum-blossom frame and enter the screening mechanism.

[0044] On the other hand, the utility model discloses a Raymond mill, including the sand making grinding roller mechanism of any one embodiment above.

[0045] The working principle of the utility model is as follows:

[0046] The material to be processed enters the inside of the Raymond mill through the feed inlet 21, the main shaft 31 is driven to rotate by the driving part, the grinding roller 332 cooperates with the grinding ring 4 to grind the material, the airflow generated by the external fan (not shown) enters the inside of the Raymond mill through the annular air duct 61 and the air inlet 62, the material on the base 1 is blown up, the material passes through the plum-blossom frame and enters the screening mechanism, the material is filtered, the material meeting the size requirement enters the next process, and the material not meeting the size requirement falls down and continues to be processed and ground.

[0047] For those skilled in the art, without departing from the creative concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model.

Claims

1. A sand making roll mechanism characterized by, The application relates to a sand making device. The device comprises a base (1), a shell (2) connected to the top of the base (1), a sand making mechanism (3) and a grinding ring (4) matched with the sand making mechanism (3). The sand making mechanism (3) comprises a main shaft (31), a support frame (32) connected to the main shaft (31) and a grinding roller device (33) rotatably connected to the support frame (32). The grinding ring (4) is arranged on the outer side of the sand making mechanism (3) and is fixedly connected to the base (1). The grinding roller device (33) comprises a grinding roller sleeve (331) and a grinding roller (332), the grinding roller sleeve (331) is hung on the support frame (32), the grinding roller (332) is connected to the grinding roller sleeve (331), and the grinding roller (332) has a convex part (333) for forming a gap (335) between the grinding roller (332) and the grinding ring (4) at all times.

2. The sanding roll mechanism of claim 1, wherein, The projection shape of the grinding roller (332) is circular.

3. The sanding roll mechanism of claim 2, wherein, The convex part (333) is a spiral structure and has a circular projection shape, is arranged on the side wall of the grinding roller (332) from top to bottom, and the number of turns of the convex part (333) is between 1.015 and 1.

05.

4. The sanding roll mechanism of claim 2, wherein, The convex part (333) is at least three parallel and staggered rectangular structures, and is sequentially arranged on the side wall of the grinding roller (332).

5. The sanding roll mechanism of claim 1, wherein, The projection shape of the grinding roller (332) is a Lai Luo triangle.

6. The sanding roll mechanism of claim 5, wherein, The convex part (333) is a spiral structure and has a circular projection shape, is arranged on the side wall of the grinding roller (332) from top to bottom, and the number of turns of the convex part (333) is between 1.015 and 1.

05.

7. The sanding roll mechanism of claim 1, wherein, The base (1) is further provided with a shovel mechanism (5), the shovel mechanism (5) comprises a shovel frame (51) and a shovel (52), the shovel frame (51) is fixedly connected to the main shaft (31), the shovel (52) is arranged above the shovel frame (51) and is obliquely arranged on the base (1).

8. The sanding roll mechanism of claim 1, wherein, The device further comprises a blowing mechanism (6), the blowing mechanism comprises a fan, an annular air duct (61), the fan is communicated with the annular air duct (61), the annular air duct (61) is arranged on the outer side of the shell (2) and is communicated with the inside of the shell (2) through an air inlet (62), and the horizontal height of the air inlet (62) is lower than that of the grinding ring (4).

9. The sanding roll mechanism of claim 1, wherein, The device further comprises a screening mechanism arranged on the top of the shell (2) and used for filtering materials.

10. A Raymond mill characterized by, The device further comprises the sand making grinding roller mechanism according to any one of claims 1 to 9.

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