CN221072058U - Grinding disc and pulping machine using same - Google Patents
Grinding disc and pulping machine using same Download PDFInfo
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- CN221072058U CN221072058U CN202322724057.3U CN202322724057U CN221072058U CN 221072058 U CN221072058 U CN 221072058U CN 202322724057 U CN202322724057 U CN 202322724057U CN 221072058 U CN221072058 U CN 221072058U
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- 238000004537 pulping Methods 0.000 title abstract description 12
- 206010006514 bruxism Diseases 0.000 claims abstract description 64
- 230000000903 blocking effect Effects 0.000 claims abstract description 31
- 239000002002 slurry Substances 0.000 claims abstract description 30
- 239000002994 raw material Substances 0.000 claims description 35
- 238000011282 treatment Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005520 cutting process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of pulping, in particular to a grinding disc and a pulping machine using the same, wherein the grinding disc comprises a grinding disc body, a working surface of the grinding disc body is sequentially provided with a pre-grinding area and a fine grinding area from inside to outside along the radial direction, the working surface of the fine grinding area is provided with a plurality of second grinding teeth and a plurality of pulp blocking bars, the second grinding teeth extend along the radial direction, the plurality of second grinding teeth are distributed on the working surface of the fine grinding area at intervals, a second conveying channel is formed between two adjacent second grinding teeth, one end of the second conveying channel, which is close to the pre-grinding area, is an inlet end, and one end opposite to the inlet end is an outlet end; the slurry blocking strips are arc-shaped and uniformly distributed along the ring shape of the fine grinding area, are respectively connected with the second grinding teeth and block the second conveying channels; a pulping machine comprises the abrasive disc, and solves the problems of non-ideal pulping fiber quality, short service life and production efficiency of the conventional pulping machine.
Description
Technical Field
The utility model relates to the technical field of pulping, in particular to a grinding disc and a pulping machine using the same.
Background
The grinding sheets are one of key elements on the pulping machine, the grinding sheets are divided into integral and combined differences, the grinding sheets must be combined together relatively to form a pair to effectively work, at least one or one group of grinding sheets rotates relative to the other or the other group of static grinding sheets fixed on the equipment under the drive of an external power source, a certain gap is reserved between the two or two groups of grinding sheets to form a grinding sheet working part gap, and materials are cut, decomposed, crushed and the like when passing through the gap between the grinding sheets, so as to prepare fiber materials meeting the requirements of the production material indexes of papermaking and density boards for subsequent use. Raw materials to be treated enter the pulping machine after the pretreatment and preparation processes in the earlier stage, enter the grinding disc from the material supply end, grinding teeth on the grinding disc are used for cutting off, decomposing and crushing the raw materials, tooth grooves are used as conveying channels, and the movable grinding disc and the static grinding disc are of the same tooth shape in consideration of easiness in manufacturing and use and convenience in use.
In the prior art, the inlet end and the outlet end of the grinding disc of the disc mill or the cone mill are enlarged in a scissor shape along with the increase of the diameter, and the cross section area of the groove is enlarged in a scissor shape along with the increase of the diameter, so that the more the working part of the grinding disc is towards the outlet, the less the raw material supply amount is, the production efficiency is low, the fibers are not fully processed and flow out of tooth grooves, and the quality of fiber treatment is not ideal; secondly, the axial accuracy of the refiner has a certain range, as the thickness of the fiber pad on the tooth surface is thinned, the gap between the grinding sheets is reduced by automatically feeding the refiner at the set load power, and the possibility that the moving grinding sheet and the fixed grinding sheet which move relatively are contacted with each other is increased, so that the abrasion of the grinding sheets is accelerated.
Disclosure of utility model
Aiming at the defects, the utility model aims to provide a grinding disc, which solves the problems of non-ideal quality of pulp grinding fibers and short service life of the existing grinding disc.
Another object of the present utility model is to provide a refiner, which solves the problems that the existing refiner has low production efficiency, the fibers are not fully processed, and the quality of the fiber processing is poor.
To achieve the purpose, the utility model adopts the following technical scheme:
The grinding disc comprises a grinding disc body, wherein the grinding disc body is of an annular structure, a central hole of the annular structure is used as a raw material supply end, and a working surface of the grinding disc body is sequentially provided with a pre-grinding area and a fine grinding area from inside to outside along the radial direction;
The pre-grinding area is used for carrying out preliminary treatment on the raw materials entering from the raw material supply end;
the working surface of the fine grinding area is provided with a plurality of second grinding teeth and a plurality of slurry blocking strips, the second grinding teeth extend along the radial direction, the second grinding teeth are distributed on the working surface of the fine grinding area at intervals, a second conveying channel is formed between two adjacent second grinding teeth, one end of the second conveying channel, which is close to the pre-grinding area, is an inlet end, and one end, which is opposite to the inlet end, is an outlet end;
the slurry blocking strips are arc-shaped, the slurry blocking strips are uniformly distributed along the ring shape of the fine grinding area, and the slurry blocking strips are respectively connected with the second grinding teeth and block the second conveying channels.
Further, both ends of the slurry blocking strip block the inlet end of one second conveying channel and the outlet end of the other second conveying channel respectively.
Further, the slurry blocking strip is divided into an initial section and a final section, and the same second conveying channel is blocked by the initial section and the final section.
In an embodiment, the working surface of the pre-grinding area is provided with a plurality of first grinding teeth, the first grinding teeth extend along the radial direction, the plurality of first grinding teeth are distributed on the working surface of the pre-grinding area at intervals, and a first conveying channel is formed between two adjacent first grinding teeth;
The first conveying channel and the second conveying channel have the same depth, the sectional area of the first conveying channel is larger than that of the second conveying channel, and the height of the first grinding tooth is lower than that of the second grinding tooth.
Further, the number of the second grinding teeth is 1.5 times that of the first grinding teeth, and two adjacent second conveying channels are communicated with the same first conveying channel.
Preferably, the slurry blocking strip and the second grinding teeth are integrally formed.
In an embodiment, the fine grinding area is provided with a plurality of mounting holes, and the mounting holes are counter bores.
A refiner comprising a blade as described above.
The technical scheme provided by the utility model can comprise the following beneficial effects:
The raw materials after the process of the pre-grinding area enter through the inlet end of the second conveying channel, because the working face of the fine grinding area is also provided with a plurality of slurry blocking strips, the slurry blocking strips are arc-shaped strips, the slurry blocking strips are arranged in an annular mode along the fine grinding area, the slurry blocking strips are respectively connected with the second grinding teeth and block the second conveying channels, the raw materials entering from the inlet ends are blocked by the slurry blocking strips in the second conveying channel, the time for processing the raw materials in the fine grinding area is increased, raw material fibers are fully processed and then flow out from the outlet end, and in the same time, the raw materials processed from the inlet end to the outlet end in the fine grinding area are increased, the effects of cutting off, decomposing, crushing and the like the raw materials can be improved, meanwhile, the production efficiency is improved, the problems that the yield of a grinding machine is affected, the grinding fibers are uneven and the service life of the grinding sheet is short are solved.
Drawings
Fig. 1 is a front view of one embodiment of the present utility model.
Fig. 2 is a front view of another embodiment of the present utility model.
Fig. 3 is a front view of another embodiment of the present utility model.
Fig. 4 is a schematic structural view of an embodiment of the present utility model.
Wherein: the grinding disc body 1, the raw material supply end 01, the pre-grinding area 11, the first grinding teeth 111, the first conveying passage 112, the fine grinding area 12, the second grinding teeth 121, the pulp baffle 122, the initial section 1221, the final section 1222, the second conveying passage 123, the inlet end 1231, the outlet end 1232, and the mounting hole 124.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
The grinding disc comprises a grinding disc body 1, wherein the grinding disc body 1 is of an annular structure, a central hole of the annular structure is a raw material supply end 01, and a working surface of the grinding disc body 1 is sequentially provided with a pre-grinding area 11 and a fine grinding area 12 from inside to outside along the radial direction;
The pre-grinding zone 11 is used for carrying out primary treatment on the raw materials entering from the raw material supply end 01;
The working surface of the fine grinding area 12 is provided with a plurality of second grinding teeth 121 and a plurality of slurry blocking bars 122, the second grinding teeth 121 extend along the radial direction, the plurality of second grinding teeth 121 are distributed on the working surface of the fine grinding area 12 at intervals, a second conveying channel 123 is formed between two adjacent second grinding teeth 121, one end of the second conveying channel 123, which is close to the pre-grinding area 11, is an inlet end 1231, and one end opposite to the inlet end 1231 is an outlet end 1232;
The slurry blocking strips 122 are arc-shaped, the slurry blocking strips 122 are uniformly distributed along the ring shape of the fine grinding area 12, and the slurry blocking strips 122 are respectively connected with the second grinding teeth 121 and block the second conveying channels 123.
In the prior art, the inlet end and the outlet end of the grinding disc of the disc mill or the cone mill are enlarged in a scissor shape along with the increase of the diameter, and the cross section area of the groove is enlarged in a scissor shape along with the increase of the diameter, so that the more the working part of the grinding disc is towards the outlet, the less the raw material supply amount is, the production efficiency is low, the fibers are not fully processed and flow out of tooth grooves, and the quality of fiber treatment is not ideal; secondly, the axial accuracy of the refiner has a certain range, because the thickness of the fiber pad on the tooth surface is thinned, the gap between the grinding sheets is reduced because the set load power of the refiner is not reduced, the possibility that the moving grinding sheets and the fixed grinding sheets which move relatively are contacted with each other is increased, so that the abrasion of the grinding sheets is accelerated, aiming at the problems in the prior art, the utility model provides a grinding sheet, as shown in fig. 1 and 2, a pre-grinding area 11 and a fine grinding area 12 are arranged on the working surface of the grinding sheet body 1 from inside to outside, the raw material entering from the raw material supply end 01 firstly carries out primary cutting, decomposing and crushing treatment on the raw material through the pre-grinding area 11, then enters into the fine grinding area 12, a plurality of second grinding teeth 121 are arranged on the working surface of the fine grinding area 12, a second conveying channel 123 is formed between two adjacent second grinding teeth 121, one end of the second conveying channel 123, which is close to the pre-grinding area 11, is an inlet end 1, and the opposite end of the second conveying channel 123 is an outlet end 1232; raw materials after the processing of the pre-grinding area 11 enter through the inlet end 1231 of the second conveying channel 123, because the working surface of the accurate grinding area 12 is also provided with a plurality of pulp baffle strips 122, the pulp baffle strips 122 are in arc-shaped strips, the pulp baffle strips 122 are annularly distributed along the accurate grinding area 12, the pulp baffle strips 122 are respectively connected with the second grinding teeth 121 and block the second conveying channel 123, raw materials entering from the inlet ends 1231 are blocked by the pulp baffle strips 122 in the second conveying channel 123, the processing time of the raw materials in the accurate grinding area 12 is increased, raw material fibers are fully processed and then flow out from the outlet end 1232, and the raw materials processed from the inlet end 1231 to the outlet end 1232 in the accurate grinding area 12 are increased in the same time through the arrangement of the pulp baffle strips 122, so that the effects of cutting, decomposing, crushing and the like of the raw materials can be improved, meanwhile, the production efficiency is improved, the contact between grinding sheets is not caused, the problem of uneven service life of the grinding sheets in the prior art is solved, and the service life of the grinding sheets is not uniform.
Further, as shown in fig. 2, both ends of the slurry blocking strip 122 block the inlet end 1231 of one of the second conveying passages 123 and the outlet end 1232 of the other second conveying passage 123, respectively.
It should be noted that, the slurry blocking strips 122 are arc-shaped strips, and a plurality of slurry blocking strips 122 are annularly arranged along the fine grinding area 12, and the raw materials also follow the rotation of the grinding sheet to do centrifugal motion due to the centrifugal force of the outer polishing generated when the grinding sheet rotates, two ends of the slurry blocking strips 122 respectively block the inlet end 1231 of the second conveying channel 123 and the outlet end 1232 of the other second conveying channel 123, so that the slurry blocking strips 122 radially extend from the inner curve to the outer curve on the working surface of the fine grinding area 12 to block the raw materials, and the effect of the grinding sheet operation is improved.
Further, as shown in FIG. 3, the flight 122 is divided into an initial section 1221 and a final section 1222; the same second conveying path 123 is blocked by both the initial section 1221 and the final section 1222, ensuring that the raw fibers are sufficiently processed before exiting the outlet end 1232.
In an alternative embodiment, the working surface of the pre-grinding area 11 is provided with a plurality of first grinding teeth 111, the first grinding teeth 111 extend in a radial direction, the plurality of first grinding teeth 111 are distributed on the working surface of the pre-grinding area 11 at intervals, and a first conveying channel 112 is formed between two adjacent first grinding teeth 111;
The first conveying passage 112 and the second conveying passage 123 have the same depth, the sectional area of the first conveying passage 112 is larger than that of the second conveying passage 123, and the height of the first grinding tooth 111 is lower than that of the second grinding tooth 121.
Further, the working surface of the pre-grinding area 11 is provided with a plurality of first grinding teeth 111, and the height of the first grinding teeth 111 is lower than that of the second grinding teeth 121, so that after the raw material entering from the raw material supply end 01 enters the first conveying channel 112, the raw material can be firstly cut off and decomposed through the first grinding teeth 111 and then enter the second conveying channel 123, so that the loss of the first grinding teeth 111 and the second grinding teeth 121 is reduced, and the service life is prolonged.
Further, the number of the second grinding teeth 121 is 1.5 times that of the first grinding teeth 111, and two adjacent second conveying passages 123 are communicated with the same first conveying passage 112.
Further, the number of the second grinding teeth 121 is 1.5 times that of the first grinding teeth 111, and two adjacent second conveying channels 123 are communicated with the same first conveying channel 112, so that the raw material entering into one first conveying channel 123 is subjected to preliminary treatment by the first grinding teeth 111 and then is subjected to fine treatment in the two second conveying channels 123 which can smoothly enter into the fine grinding region 12, thereby avoiding the occurrence of blockage between the grinding teeth and further improving the grinding operation effect.
Preferably, the slurry blocking strip 122 and the second grinding teeth 121 are integrally formed, so that the grinding sheet processing is simpler.
In an alternative embodiment, the refining zone 12 is provided with a plurality of mounting holes 124, and the mounting holes 124 are counter bores.
Further, a plurality of mounting holes 14 are formed in the fine grinding area 12 to facilitate the mounting of the grinding sheet, and counter bores are adopted to avoid the influence of contact friction between mounting screws on the grinding sheet operation.
In one embodiment, the number of the mounting holes 124 is four, and the four mounting holes 124 are uniformly distributed along the ring shape of the refining area 12, so that the grinding sheet can be stably mounted on the refiner, the rotation is stable, and the operation of the grinding sheet is not affected by the 4 mounting holes 124.
A refiner comprising a blade as described above.
Further, the grinding disc solves the problems that an existing pulping machine is low in production efficiency, fibers cannot be fully processed and quality of fiber processing is poor.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (8)
1. A grinding disc, characterized in that: the grinding disc comprises a grinding disc body, wherein the grinding disc body is of an annular structure, a central hole of the annular structure is used as a raw material supply end, and a working surface of the grinding disc body is sequentially provided with a pre-grinding area and a fine grinding area from inside to outside along the radial direction;
The pre-grinding area is used for carrying out preliminary treatment on the raw materials entering from the raw material supply end;
the working surface of the fine grinding area is provided with a plurality of second grinding teeth and a plurality of slurry blocking strips, the second grinding teeth extend along the radial direction, the second grinding teeth are distributed on the working surface of the fine grinding area at intervals, a second conveying channel is formed between two adjacent second grinding teeth, one end of the second conveying channel, which is close to the pre-grinding area, is an inlet end, and one end, which is opposite to the inlet end, is an outlet end;
the slurry blocking strips are arc-shaped, the slurry blocking strips are uniformly distributed along the ring shape of the fine grinding area, and the slurry blocking strips are respectively connected with the second grinding teeth and block the second conveying channels.
2. A grinding disc according to claim 1, characterized in that: the two ends of the slurry blocking strip respectively block the inlet end of one second conveying channel and the outlet end of the other second conveying channel.
3. A grinding disc according to claim 2, characterized in that: the slurry blocking strip is divided into an initial section and a final section, and the same second conveying channel is blocked by the initial section and the final section.
4. A grinding disc according to claim 1, characterized in that: the working surface of the pre-grinding area is provided with a plurality of first grinding teeth, the first grinding teeth extend along the radial direction, the plurality of first grinding teeth are distributed on the working surface of the pre-grinding area at intervals, and a first conveying channel is formed between two adjacent first grinding teeth;
The first conveying channel and the second conveying channel have the same depth, the sectional area of the first conveying channel is larger than that of the second conveying channel, and the height of the first grinding tooth is lower than that of the second grinding tooth.
5. A grinding disc according to claim 4, characterized in that: the number of the second grinding teeth is 1.5 times that of the first grinding teeth, and two adjacent second conveying channels are communicated with the same first conveying channel.
6. A grinding disc according to claim 1, characterized in that: the slurry blocking strip and the second grinding teeth are integrally formed.
7. A grinding disc according to claim 1, characterized in that: the accurate grinding area is provided with a plurality of mounting holes, and the mounting holes are counter bores.
8. A refiner, characterized in that: a blade comprising a blade according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322724057.3U CN221072058U (en) | 2023-10-10 | 2023-10-10 | Grinding disc and pulping machine using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322724057.3U CN221072058U (en) | 2023-10-10 | 2023-10-10 | Grinding disc and pulping machine using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221072058U true CN221072058U (en) | 2024-06-04 |
Family
ID=91264263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322724057.3U Active CN221072058U (en) | 2023-10-10 | 2023-10-10 | Grinding disc and pulping machine using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221072058U (en) |
-
2023
- 2023-10-10 CN CN202322724057.3U patent/CN221072058U/en active Active
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