CN114308361B - Internal screening circulating roller press - Google Patents
Internal screening circulating roller press Download PDFInfo
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- CN114308361B CN114308361B CN202210049509.XA CN202210049509A CN114308361B CN 114308361 B CN114308361 B CN 114308361B CN 202210049509 A CN202210049509 A CN 202210049509A CN 114308361 B CN114308361 B CN 114308361B
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Abstract
The application relates to an internal screening circulating roller press which comprises a sealing housing, an extrusion double roller, a material selecting assembly, a scattering assembly and a material returning assembly. The extrusion pair rollers are arranged in the sealed housing. The material selecting component is arranged below the extrusion pair roller. The material selecting component comprises a material selecting shell and a plurality of material selecting sieve plates, a feeding hole, a feed back hole and a discharging hole are formed in the material selecting shell, and the plurality of material selecting sieve plates are arranged in the material selecting shell at intervals. The scattering component is arranged in the material selecting shell. The scattering assembly comprises a plurality of scattering blades and a scattering shaft, and the scattering blades are arranged on the scattering shaft at intervals. The feed back subassembly is connected with the material selection casing. The feed back subassembly includes feed back pipeline spare and screw feeding spare. One end of the feed back pipeline part is connected with the feed back port, and the spiral feeding part is arranged in the feed back pipeline part. This application is through interior screening circulating roll material, improves the degree of consistency and the grinding efficiency of grinding material, reduces the quantity that gets into the coarse grain in the follow-up procedure in the farine.
Description
Technical Field
The application relates to a cement production system, in particular to an internal screening circulating roller press.
Background
In the existing cement production system, after the materials extruded by a roller press are subjected to powder separation by a V powder separator, coarse-particle materials need to enter the roller press again for extrusion, fine powder enters the next procedure, and in actual work, the extruded materials are cake-shaped, enter static V-shaped powder separation, and need to be subjected to cyclic powder separation for 3 to 5 times, so that the powder separation efficiency is low. In addition, the V-shaped powder concentrator has larger volume and larger floor area, and the floor area of the whole system is increased.
Disclosure of Invention
The embodiment of the application provides an interior screening circulation roll squeezer, solves the problem that the powder selection efficiency of current cement production system is low and V type selection powder machine is bulky.
In order to solve the above technical problem, the present application is implemented as follows:
in a first aspect, an internal screening circulating roller press is provided, which comprises a sealing housing, a squeezing pair roller, a sorting component, a scattering component and a return component. The extrusion pair roller is arranged in the sealed housing and comprises a first extrusion roller and a second extrusion roller, and an extrusion area is formed on one side of the first extrusion roller, which is adjacent to the second extrusion roller. The sorting assembly is arranged below the extrusion pair rollers and comprises a sorting shell and a plurality of sorting sieve plates, a feeding hole, a feed back hole and a discharging hole are formed in the sorting shell, the feeding hole is located below the extrusion area, the feed back hole is located between the feeding hole and the discharging hole, and the sorting sieve plates are arranged in the sorting shell at intervals.
Break up the subassembly and set up in selecting the material casing, break up the subassembly and include a plurality of blades of breaing up and break up the axle, a plurality of blades intervals of breaing up set up in breaking up epaxially, and lie in the below of feed inlet, break up the axle and can drive a plurality of blades of breaing up and rotate simultaneously. The feed back subassembly is connected with the selection material casing, and the feed back subassembly includes feed back pipeline spare and spiral feeding spare, and the one end and the feed back mouth of feed back pipeline spare are connected, and feed back pipeline spare is used for retrieving the coarse material in the selection material casing, and spiral feeding spare sets up in feed back pipeline spare.
In a first possible implementation manner of the first aspect, the method further includes: and the feeding device is communicated with the feeding hole of the sealing housing, and the other end of the material return pipeline piece is connected with the feeding device.
In a second possible implementation manner of the first aspect, the material selecting assembly further includes a trumpet-shaped material receiving barrel, the trumpet-shaped material receiving barrel is connected with the feeding port, and the trumpet-shaped material receiving barrel is located below the extrusion area.
With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the material selecting assembly further includes an inclined stop, and the inclined stop is disposed at a connection position between the trumpet-shaped material receiving barrel and the material inlet and located above the scattering blade.
In a fourth possible implementation manner of the first aspect, the sorting assembly further includes a powder sorting chain, the powder sorting chain is disposed in the sorting housing, and the powder sorting chain is located above the feed back port and located on one side of the sorting sieve plate close to the feed inlet.
In a fifth possible implementation manner of the first aspect, each sorting screen plate is of a mesh grid structure or a chain structure, and each sorting screen plate is obliquely and alternately arranged on the inner wall of the sorting shell.
In a sixth possible implementation manner of the first aspect, the number of the plurality of scattering blades is greater than or equal to three, and each scattering blade is provided with at least one wear-resistant steel sheet.
With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, each wear-resistant steel sheet is fixedly arranged on the corresponding dispersing blade through a bolt assembly.
Combine the first possible implementation of the first aspect, in an eighth possible implementation of the first aspect, the feed back pipeline includes a first inclined feeding channel, a horizontal feeding channel, a vertical feeding channel, and a second inclined feeding channel, one end of the first inclined feeding channel is connected to the feed back port, the other end of the first inclined feeding channel is connected to one end of the horizontal feeding channel, the other end of the horizontal feeding channel is communicated with the bottom of the vertical feeding channel, one end of the second inclined feeding channel is connected to the top of the vertical feeding channel, the other end of the second inclined feeding channel is connected to the feeding device, and the spiral feeding component is disposed in the horizontal feeding channel and the vertical feeding channel.
With reference to the eighth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, the material returning component further includes an electromagnetic valve, a pull rod, and a lifter, an opening corresponding to the electromagnetic valve is formed in the bottom wall of the first inclined blanking channel, the electromagnetic valve is disposed on the opening, one end of the pull rod is connected to the electromagnetic valve, the other end of the pull rod is connected to the material selecting shell, and the lifter is connected to the pull rod.
Compared with the prior art, the application has the advantages that:
the application discloses interior screening circulating roll squeezer sets up the selection subassembly in breaking up the casing, breaks up subassembly and feed back subassembly, breaks up the subassembly and spills the material, selects the material subassembly to select the powder back to the material, and the feed back subassembly is sent coarse material back to and is pushed once more in the roll squeezer, and fine material gets into one process down, so sieve the circulating roll material in realizing to improve the degree of consistency and the grinding efficiency of grinding material. Meanwhile, as the coarse particles in the fine powder are less, the times of the coarse particles circularly entering the V-shaped powder concentrator can be greatly reduced, the powder concentration efficiency of the V-shaped powder concentrator is increased, the matching model of the V-shaped powder concentrator can be reduced, and the effect of saving the equipment land is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic view of an internal screening cycle roller press according to an embodiment of the present application;
FIG. 2 is a schematic view of a break-up assembly of an embodiment of the present application within a material selection housing;
FIG. 3 is a partial schematic view looking down from the left section of the material selection housing in accordance with an embodiment of the present application;
FIG. 4 is a partial schematic view of a material selection assembly and a material return assembly according to an embodiment of the present application;
fig. 5 is a schematic view of direction a in fig. 4.
Detailed Description
For a cement production system, materials extruded by a roller press are cake-shaped and enter static V-shaped powder separation, 3-5 times of circular powder separation are needed, and the powder separation efficiency is low. And because V type selection powder machine is great in size, and area is great, still can increase the area of whole system.
The application discloses interior screening circulating roller press is behind the extrusion material, and a plurality of blades of breaing up scatter the material and scatter, select the material subassembly to select the powder back to the material, send thick material back to the roller press in and extrude once more, and thin material gets into next process. Because the coarse particles in the fine powder are less, the times of the coarse particles circularly entering the V-shaped powder concentrator can be greatly reduced, the powder concentration efficiency of the V-shaped powder concentrator is increased, the matching model of the V-shaped powder concentrator can be reduced, and the effect of saving the equipment land is achieved.
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
As used herein, "first," "second," and the like, are not specifically intended to be construed in an orderly or sequential sense, nor are they intended to be limiting, but merely to distinguish between elements or operations that are described in the same technical language.
Referring to fig. 1, which is a schematic view of an internal screening circulation roller press according to an embodiment of the present application, the direction of the arrow in fig. 1 is a material path. As shown, the internal screening circulating roller press 1 comprises a sealing housing 2, a pressing pair roller 3, a sorting component 4, a scattering component 5 and a return component 6. The pressing pair roller 3 is disposed in the sealed housing 2. The press counter roll 3 includes a first press roll 31 and a second press roll 32. The side of the first press roll 31 adjacent to the second press roll 32 forms a press area 301. The extrusion area 301 is located below the feed opening 21 of the sealed housing 2, the material enters the extrusion area 301 through the feed opening 21 of the housing 2, and the first extrusion roller 31 and the second extrusion roller 32 respectively rotate to extrude the material.
The sorting component 4 is arranged below the extrusion pair roller 3. The material selecting assembly 4 comprises a material selecting shell 41 and a plurality of material selecting sieve plates 42. The sorting shell 41 is provided with a feeding hole 411, a feed back hole 412 and a discharging hole 413, the feeding hole 411 is positioned below the extrusion area 301, and the feed back hole 412 is positioned between the feeding hole 411 and the discharging hole 413. As shown in fig. 1, the sorting housing 41 is composed of a left section 401, a middle section 402 and a right section 403, the left section 401 is spherical and located right below the extrusion region 301, the feed inlet 411 is located above the left section, the middle section 402 is in a horizontal cylinder shape, the feed back outlet 412 is located below the middle section, the right section 403 is in a vertical cylinder shape, and the discharge outlet 413 is located below the right section.
As described above, the plurality of material selecting screen plates 42 are arranged in the material selecting casing 41 at intervals. The plurality of material selecting screen plates 42 and the inner wall of the material selecting shell 41 form a labyrinth passage. Each material selecting sieve plate 42 is of a net-shaped grid structure or a chain structure, and each material selecting sieve plate 42 is obliquely arranged on the inner wall of the material selecting shell 41 at intervals, so that powder of powder materials can be well screened, and the material selecting sieve plate has good durability.
Referring to fig. 2 and also to fig. 1, fig. 2 is a schematic view of a breaking assembly located in a material selecting housing according to an embodiment of the present disclosure. As shown, the breaking-up assembly 5 is disposed in the material selecting housing 41, and as shown in fig. 1, the breaking-up assembly 5 is located in the left section 401. The scattering assembly 5 includes a plurality of scattering blades 51 and a scattering shaft 52, and the scattering blades 51 are disposed on the scattering shaft 52 at intervals and below the feeding port 411. In the embodiment, the number of the scattering blades 51 is more than or equal to three, and each scattering blade 51 is provided with at least one wear-resistant steel sheet 53, so that the durability of the scattering blades 51 is improved, and the maintenance requirement is reduced. Furthermore, each wear-resistant steel sheet 53 is fixedly arranged on the corresponding scattering blade 51 through a bolt assembly 54, so that the maintenance and the fixation are convenient.
When the extrusion material enters the material selecting shell 41 through the feeding hole 411, the scattering shaft 52 drives the scattering blades 51 to rotate simultaneously, the scattering blades 51 scatter the material, the scattered material is blown to a labyrinth channel by the air quantity generated by the rotation of the scattering blades 51, the material is subjected to thickness separation by the characteristics of the material, the thick material enters the material returning hole 412, and the thin material enters the next process through the discharging hole 413.
Referring back to fig. 1, the feed back assembly 6 is connected to the material selecting housing 41. The feed back assembly 6 includes a feed back conduit member 61 and a screw feeder member 62. The screw feeding member 62 is disposed in the return duct member 61. One end of the return pipe member 61 is connected to the return port 412, and the other end of the return pipe member 61 is connected to the feeding device 7. The feed device 7 communicates with the feed opening 21 of the sealed housing 2. After the coarse materials enter the material return pipe 61 through the material return port 412, the screw feeding member 62 conveys the materials to the feeding device 7, and the feeding device 7 conveys the coarse materials into the sealed housing 2 again for extrusion and grinding.
When the interior screening circulating roller press 1 of this embodiment is using, feed arrangement 7 sends into the material in the extrusion region 301 via the feed inlet 21 of housing 2, first squeeze roll 31 and the cooperation extrusion material of second squeeze roll 32, the material after the extrusion enters into in the selection material casing 41 through feed inlet 411, break up axle 52 and drive a plurality of blades 51 of breaing up and rotate simultaneously, scatter the material, the material that will scatter simultaneously blows to the labyrinth passageway, separate thickness. Coarse materials enter the material return pipeline piece 61 through the material return port 412, the screw feeding piece 62 conveys the materials to the feeding device 7, and the feeding device 7 conveys the coarse materials into the sealed housing 2 again for extrusion and grinding.
In addition, the fine materials enter the next procedure (V-shaped powder concentrator) through the discharge port 413, so that the materials are subjected to internal screening and circulating rolling, and the uniformity and the grinding efficiency of the ground materials are improved. Meanwhile, as the number of coarse particles in the fine material is less, the required type of the V-shaped powder concentrator does not need to be as large as before, so that the occupied area of the equipment can be greatly reduced, and the number of times of the coarse particles circularly entering the roller press can be greatly reduced, therefore, the powder concentration efficiency of the V-shaped powder concentrator can be increased, the yield of the whole production system is increased, meanwhile, the matching type of the V-shaped powder concentrator can be reduced, and the purpose of saving the land for the equipment is achieved.
The structures of the material selecting assembly 4, the material return pipe member 61 and the material return assembly 6 will be described in detail below. Referring to fig. 3 and also to fig. 2, fig. 3 is a partial schematic view of a material selecting shell according to an embodiment of the present application, which is viewed from the left section of the material selecting shell. As shown, the selecting assembly 4 further includes a trumpet-shaped receiving barrel 43. Trumpet-shaped material receiving cylinder 43 is connected with feed inlet 411, and trumpet-shaped material receiving cylinder 43 is located the below of extrusion region 301, so can realize drawing in of the extrusion material of receiving, then concentrate to supply with to break up subassembly 5 and realize further breaking up the material. The material selecting assembly 4 further comprises an inclined stop 44. The inclined stopper 44 is disposed at a connecting position between the trumpet-shaped take-up cylinder 43 and the feed opening 411 and above the scattering blades 51. The inclined stop block 44 can reduce the impact force of the materials on the scattering blades 51, prolong the service life of the scattering blades and prolong the maintenance period.
Referring to fig. 4 and 5, fig. 4 is a partial schematic view of a material selecting assembly and a material returning assembly according to an embodiment of the present application, and fig. 5 is a schematic view of a direction a in fig. 4. As shown in the figure, the selecting assembly 4 further comprises a powder selecting chain 45. Powder selecting chain 45 sets up in selecting materials casing 41, and powder selecting chain 45 is located the top of feed back 412, and is located the one side that selects material sieve 42 to be close to feed inlet 411, and powder selecting chain 45 is used for the rough concentration to the material on the one hand, and on the other hand can alleviate the impact to selecting material sieve 42, has better performance.
Referring back to fig. 1, the material return duct member 61 includes a first inclined blanking passage 611, a horizontal blanking passage 612, a vertical blanking passage 613 and a second inclined blanking passage 614. One end of the first inclined blanking channel 611 is connected to the material return port 412, and the other end of the first inclined blanking channel 611 is connected to one end of the horizontal blanking channel 612. The other end of the horizontal blanking passage 612 communicates with the bottom of the vertical blanking passage 613. One end of the second inclined blanking channel 614 is connected to the top of the vertical blanking channel 613. The other end of the second inclined blanking channel 614 is connected to the feeding device 7.
As mentioned above, the screw feeding member 62 is disposed in the horizontal blanking passage 612 and the vertical blanking passage 613. After the coarse material enters the first inclined blanking channel 611 through the material returning opening 412, the coarse material slides into the horizontal blanking channel 612 under the action of the gravity of the coarse material, the screw feeder 62 feeds the material into the second inclined blanking channel 614 through the horizontal blanking channel 612 and the vertical blanking channel 613, and the material slides into the feeding device 7 again under the action of the gravity of the material.
Referring back to fig. 4, the material returning assembly 6 further includes a solenoid valve 63, a pull rod 64, and a lifter 65. The bottom wall of the first inclined blanking channel 611 is provided with an opening corresponding to the solenoid valve 63, and the solenoid valve 63 is arranged on the opening. In actual production, the coarse material may contain some metal substances, and when the coarse powder containing the metal substances slides through the first inclined blanking channel 611, the metal is adsorbed on the electromagnetic valve 63 under the magnetic force of the high-efficiency electromagnet of the electromagnetic valve 63.
As described above, one end of the pull rod 64 is connected to the solenoid valve 63, and the other end of the pull rod 64 is connected to the material selecting case 41. The lifter 65 is connected to the draw bar 64. When the metal adsorbed on the electromagnetic valve 63 reaches a certain amount, the lifter 65 is powered on, the lifting rod extends out to drive the pull rod 64 to descend, the electromagnetic valve 63 is opened, the electromagnetic valve 63 is separated from the first inclined blanking channel 611 by a certain distance, at the moment, the electromagnet of the electromagnetic valve 63 is powered off, the iron filings adsorbed on the electromagnetic valve 63 are discharged through a special channel, then the lifting rod retracts to drive the pull rod 64 to ascend, the electromagnetic valve 63 is closed, the electromagnet of the electromagnetic valve 63 is continuously powered on, and the coarse powder containing metal substances is continuously adsorbed.
In summary, the present application provides an internal screening circulating roller press. Set up the selection material subassembly in breaking up the casing, break up subassembly and feed back subassembly, break up the subassembly and scatter the material, select the material subassembly to select the powder back to the material, the feed back subassembly is sent coarse material back to and is pushed once more in the roll-in press, and fine material gets into one process down, so sieve selection circulation roll-in material in realizing to improve the degree of consistency and the grinding efficiency of grinding material. Meanwhile, because the coarse particles in the fine powder are fewer, the times of the coarse particles circularly entering the V-shaped powder concentrator can be greatly reduced, the powder concentration efficiency of the V-shaped powder concentrator is increased, the matching model of the V-shaped powder concentrator can be reduced, and the effect of saving the equipment land is achieved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. An internal screening circulating roller press, comprising:
sealing the housing;
the extrusion double-roll is arranged in the sealed housing and comprises a first extrusion roll and a second extrusion roll, and one side of the first extrusion roll, which is adjacent to the second extrusion roll, forms an extrusion area;
the material selecting component is arranged below the extrusion pair rollers and comprises a material selecting shell and a plurality of material selecting sieve plates, a feeding hole, a material returning hole and a material discharging hole are formed in the material selecting shell, the feeding hole is located below the extrusion area, the material returning hole is located between the feeding hole and the material discharging hole, and the plurality of material selecting sieve plates are arranged in the material selecting shell at intervals;
the scattering assembly is arranged in the material selecting shell and comprises a plurality of scattering blades and a scattering shaft, the scattering blades are arranged on the scattering shaft at intervals and are positioned below the feeding hole, and the scattering shaft can drive the scattering blades to rotate simultaneously;
the feed back assembly is connected with the material selecting shell and comprises a feed back pipeline piece and a spiral feeding piece, one end of the feed back pipeline piece is connected with the feed back port, the feed back pipeline piece is used for recovering coarse materials in the material selecting shell, and the spiral feeding piece is arranged in the feed back pipeline piece;
the material selecting shell is composed of a left section, a middle section and a right section, the left section is in a sphere-like shape and is positioned right below an extrusion area, the feeding hole is positioned above the left section, the middle section is in a horizontal cylindrical shape, the feed back hole is positioned below the middle section, the right section is in a vertical cylindrical shape, and the discharge hole is positioned below the right section;
the material selecting assembly further comprises a horn-shaped material receiving barrel, the horn-shaped material receiving barrel is connected with the feeding hole, and the horn-shaped material receiving barrel is located below the extrusion area;
the material selecting assembly further comprises an inclined stop block, and the inclined stop block is arranged at the connecting position of the horn-shaped material collecting barrel and the material inlet and is positioned above the scattering blades;
the powder selecting assembly further comprises a powder selecting chain, the powder selecting chain is arranged in the material selecting shell, and the powder selecting chain is located above the feed back opening and on one side of the material selecting sieve plate close to the feed inlet;
each material selecting sieve plate is of a net-shaped grid structure or a chain structure, and each material selecting sieve plate is obliquely arranged on the inner wall of the material selecting shell at intervals.
2. The internal screening circulation roller press of claim 1, further comprising: and the feeding device is communicated with the feeding hole of the sealing housing, and the other end of the material return pipeline part is connected with the feeding device.
3. The internal screening circulating roller press of claim 1, wherein the number of the plurality of scattering blades is three or more, and each scattering blade is provided with at least one wear-resistant steel sheet.
4. The internal screening circulating roller press of claim 3, wherein each wear resistant steel sheet is fixedly disposed on the corresponding dispersing blade by a bolt assembly.
5. The internal screening circulating roller press according to claim 2, wherein the material return pipeline piece comprises a first inclined blanking channel, a horizontal blanking channel, a vertical blanking channel and a second inclined blanking channel, one end of the first inclined blanking channel is connected with the material return port, the other end of the first inclined blanking channel is connected with one end of the horizontal blanking channel, the other end of the horizontal blanking channel is communicated with the bottom of the vertical blanking channel, one end of the second inclined blanking channel is connected with the top of the vertical blanking channel, the other end of the second inclined blanking channel is connected with the feeding device, and the spiral feeding piece is arranged in the horizontal blanking channel and the vertical blanking channel.
6. The internal screening circulating roller press of claim 5, wherein the feed back assembly further comprises an electromagnetic valve, a pull rod and a lifter, an opening corresponding to the electromagnetic valve is formed in the bottom wall of the first inclined blanking channel, the electromagnetic valve is arranged on the opening, one end of the pull rod is connected with the electromagnetic valve, the other end of the pull rod is connected with the material selecting shell, and the lifter is connected with the pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210049509.XA CN114308361B (en) | 2022-01-17 | 2022-01-17 | Internal screening circulating roller press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210049509.XA CN114308361B (en) | 2022-01-17 | 2022-01-17 | Internal screening circulating roller press |
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| Publication Number | Publication Date |
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| CN114308361A CN114308361A (en) | 2022-04-12 |
| CN114308361B true CN114308361B (en) | 2023-04-07 |
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| CN202210049509.XA Active CN114308361B (en) | 2022-01-17 | 2022-01-17 | Internal screening circulating roller press |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102012109644B4 (en) * | 2012-10-10 | 2016-02-11 | Thyssenkrupp Industrial Solutions Ag | grinding plant |
| CN103657825B (en) * | 2014-01-06 | 2015-02-11 | 江苏鹏飞集团股份有限公司 | Dispersing device for roller press |
| CN205199675U (en) * | 2015-11-11 | 2016-05-04 | 永丰县广丰化工有限公司 | Heavy calcium carbonate grading plant |
| CN211586843U (en) * | 2019-12-12 | 2020-09-29 | 东营泰和石油助剂有限公司 | Barite powder production device |
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