CN214211268U - Powder concentrator for calcium carbonate powder production - Google Patents
Powder concentrator for calcium carbonate powder production Download PDFInfo
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- CN214211268U CN214211268U CN202023248764.2U CN202023248764U CN214211268U CN 214211268 U CN214211268 U CN 214211268U CN 202023248764 U CN202023248764 U CN 202023248764U CN 214211268 U CN214211268 U CN 214211268U
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Abstract
The utility model provides a powder concentrator of calcium carbonate powder production usefulness belongs to calcium carbonate powder production facility technical field. The screening device comprises a plurality of screening mechanisms which are connected in series, wherein each screening mechanism comprises a screening barrel, a feeding hopper, a thick blanking pipe and a thin blanking pipe, a rotary drum is connected in the screening barrel in a rotating mode, two shielding and filtering structures are arranged outside the rotary drum, each shielding and filtering structure comprises an arc-shaped shielding piece close to the inner wall of the screening barrel, a connecting rod connecting the shielding piece and the outer wall of the rotary drum, and a mounting frame radially arranged in a material cavity; the series connection mode of a plurality of sorting mechanisms is as follows: the fine discharge pipe of one of the sorting mechanisms is connected with a feed hopper (21) of the sorting mechanism behind the fine discharge pipe. The utility model has the advantages of can accomplish the calcium carbonate powder of different fineness in succession and select not so on line.
Description
Technical Field
The utility model belongs to the technical field of calcium carbonate powder production facility, a powder concentrator of calcium carbonate powder production usefulness is related to.
Background
The calcium carbonate powder being ore (CaCO)3) The coarse whiting powder with certain whiteness and fineness is obtained by mechanical crushing, sorting and other processes and is widely used as a filling material in products such as power plant desulfurization, glass fiber, citric acid industry, building, calcium plastic products, ceramics, chemical fiber carpets, waterproof materials, feeds, foods, inner and outer wall putty powder and the like.
In the production process, the selection of calcium carbonate powder with different fineness is an important link, products with different specifications can be collected by selection, on the other hand, the powder with the fineness which does not meet the requirement needs to be selected and returned to the crushing mechanism again, and the powder enters the powder selecting machine for separation after being crushed again, in the prior art, only one type of powder with one particle size can be selected in one flow, namely, the powder which does not meet the requirement of the fineness is removed through the filtering structure and returned to the crushing mechanism, so that the mode has lower efficiency, the technical process is complicated, corresponding equipment and required elevators are greatly increased, and the dust removal work of a workshop is also increased; moreover, the existing filtering structure (especially when strictly selecting powder with a certain fineness) is easy to block, needs frequent maintenance, and affects the selection quality and continuous operation production.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a powder concentrator of calcium carbonate powder production usefulness to the above-mentioned problem that prior art exists, the utility model aims to solve the technical problem of how to accomplish the selection of the powder of multiple different specifications in succession on line.
The purpose of the utility model can be realized by the following technical proposal: a powder concentrator for calcium carbonate powder production is characterized by comprising a plurality of grading mechanisms which are connected in series, wherein each grading mechanism comprises a grading barrel, a feeding hopper, a coarse feeding pipe and a fine feeding pipe, a rotary barrel is rotatably connected in the grading barrel, an annular material cavity is formed between the rotary barrel and the grading barrel, two shielding and filtering structures are arranged outside the rotary barrel and are circumferentially and uniformly distributed outside the rotary barrel, each shielding and filtering structure comprises an arc-shaped shielding sheet close to the inner wall of the grading barrel, a connecting rod for connecting the shielding sheet and the outer wall of the rotary barrel, and a mounting frame radially arranged in the material cavity, a plurality of telescopic assemblies are arranged between the mounting frame and the connecting rod, a filter screen is arranged in the middle of the mounting frame, each telescopic assembly comprises a guide sleeve fixed on the mounting frame and a guide column fixed on the connecting rod, and the guide sleeve and the guide column corresponding to the guide sleeve are of arc-shaped structures with the same diameter, the guide posts are connected in the corresponding guide sleeves in a sliding manner, and the guide sleeves are internally provided with return springs capable of driving the guide sleeves to be far away from the guide posts;
a driving cylinder is rotatably connected in the rotary cylinder and is connected with a driving motor, a plurality of first electromagnetic blocks which correspond to the shielding and filtering structures one by one are uniformly arranged on the driving cylinder in the circumferential direction, and first iron adsorption blocks matched with the first electromagnetic blocks are arranged on the inner side of the mounting frame;
a plurality of second electromagnetic blocks which correspond to the shielding filtering structures one by one are uniformly arranged on the outer wall of the grading cylinder in the circumferential direction, and iron second adsorption blocks which are matched with the second electromagnetic blocks are embedded in the shielding plates;
when the second electromagnetic block adsorbs the second adsorption block, one of the shielding pieces shields the inlet of the coarse blanking pipe; the thin blanking pipe is positioned at the lowest point of the sorting cylinder, the thick blanking pipe and the feeding hopper are positioned on one side of a vertical radial line of the sorting cylinder, and the rotation direction of the driving cylinder is as follows: the direction of the inlet of the feeding hopper, the inlet of the coarse feeding pipe and the inlet of the fine feeding pipe can be controlled to be shielded by any shielding piece in sequence.
Furthermore, the first electromagnetic block and the second electromagnetic block are electromagnetic structures with controllable magnetic force.
Further, the serial connection mode of a plurality of sorting mechanisms is as follows: the fine discharge pipe of one of the sorting mechanisms is connected with the feed hopper of the sorting mechanism behind the fine discharge pipe.
The working principle of the single sorting mechanism is as follows:
calcium carbonate powder after smashing the mechanism drops into the hopper at the uniform velocity, start driving motor, it is rotatory to make the driving cylinder, because the adsorption affinity of second electromagnetic block and second adsorption piece, first electromagnetic block is not enough to order about the mounting bracket to the adsorption affinity of first adsorption piece and promotes the rotary drum rotatory, but can order about the mounting bracket in the state of "shake", this is because when first electromagnetic block corresponds with first adsorption piece, the mounting bracket can be to the direction motion that compresses tightly reset spring, when first electromagnetic block breaks away from first adsorption piece, the mounting bracket resets under reset spring's effect, the shake is realized to the mounting bracket promptly, so that the powder that drops on the filter screen can fully filter.
The drum stop state is a fine powder sorting state, specifically: under the condition that second electromagnetism piece and second adsorption block effect, the entry of thick unloading pipe is sheltered from to the shielding piece that the filter screen under operating condition corresponds, and the powder material falls into on the filter screen that is in the position of working by going into the hopper, can fall into in the thin unloading pipe of minimum point department through the powder of filter screen, and the thick powder that can not filter the filter screen then piles up on the filter screen.
Feeding the coarse powder into a coarse blanking pipe: when powder which is accumulated on the filter screen at the working position and cannot be filtered is accumulated to a certain amount, the second electromagnetic block can be actively controlled to be powered off, or the current amount of the second electromagnetic block is reduced, so that the second adsorption block is separated from the second electromagnetic block, or the second adsorption block is separated from the second electromagnetic block due to the bearing of the filter screen, the rotary drum starts to rotate, in the rotating process of the rotary drum, the two shielding sheets firstly respectively close the outlet of the feeding hopper and the inlet of the fine discharging pipe, then the coarse discharging pipe is opened under the condition that the outlet of the feeding hopper is kept closed, so that coarse powder on the upper side of the filter screen enters the coarse discharging pipe, after the coarse powder is discharged, the two shielding sheets are reset again to return to the stop state of the rotary drum, and the process is repeated.
A plurality of sorting mechanisms are connected in series: according to the serial sequence, the subdivision selected by the previous sorting mechanism is taken as the raw material of the next sorting mechanism, the raw material enters from the feeding hopper and is sorted again, each filter screen is adaptively arranged, namely, the filter screen hole diameters of the filter screens are sequentially reduced by the sequential sorting mechanism.
The setting and control of the second electromagnetic block are explained in detail: when the second electromagnetic block is actively controlled, the electrifying current of the second electromagnetic block can be controlled when fine powder is sorted, so that the adsorption force between the second electromagnetic block and the second adsorption block is larger, the current of the second electromagnetic block is cut off after the material quantity of the material hopper reaches a set value by taking the material quantity of the material hopper as a reference, the rotary drum can rotate under the action of the adsorption force of the first electromagnetic block and the first adsorption block, and certainly, materials above the filter screen can drive the rotary drum to rotate; when the second electromagnetic block fixes the electrified current, the rotation of the rotary drum is controlled by the acting force of the filter screen bearing on the rotary drum in the shaking process, and when the acting force can drive the second electromagnetic block to be separated from the second adsorption block, the rotary drum rotates to discharge coarse powder; of course, the current of the second electromagnetic block can also be controlled in real time, that is, under the correspondence of other data or logic, the current of the second electromagnetic block is reduced when needed to enable the rotating drum to rotate, and the current of the second electromagnetic block is increased when the rotating drum is needed to stop.
It can be seen that the powder concentrator can continuously complete various powder with different fineness on line, the filter screen can increase the powder concentration precision and efficiency in a shaking state, the powder concentrator is simple in structure, the powder is in a relatively closed space, and the environmental protection problems of dust emission and the like of a traditional powder concentrator are solved.
The continuous switching of operating condition of two filter screens, when one of them filter screen is in operating condition, another filter screen is also in the shake state, and the powder that probably persists in the filter screen hole can be cleared up at the shake in-process of idle filter screen to make the filter screen keep as original state, the powder that blocks up the filter screen that idle filter screen fell out at the shake in-process gets into thin unloading pipe
Drawings
Fig. 1 is a schematic structural view of the selection mechanism when the filter screen is in one of the shaking states.
Fig. 2 is a schematic view of the selection mechanism in another state of the filter screen being shaken.
Fig. 3 is a schematic structural diagram of the sorting mechanism in a coarse powder discharging state.
Fig. 4 is a schematic structural view of one of the shutter plates in a state of closing the outlet of the hopper.
Fig. 5 is a schematic perspective view of the shield and the drum (one of the shields and its attachment are not shown for clarity).
In the figure, 1, a sorting cylinder; 21. feeding into a hopper; 22. a coarse blanking pipe; 23. a fine blanking pipe; 24. a material cavity; 25. a rotating drum; 26. a drive cylinder; 31. a shielding sheet; 32. a connecting rod; 33. a mounting frame; 34. filtering with a screen; 35. a guide sleeve; 36. a guide post; 41. a first electromagnetic block; 42. a first adsorption block; 51. a second electromagnetic block; 52. and a second adsorption block.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 5, the sorting device comprises a plurality of sorting mechanisms connected in series, each sorting mechanism comprises a sorting cylinder 1, a feeding hopper 21, a rough discharging pipe 22 and a fine discharging pipe 23, a rotary cylinder 25 is rotatably connected in the sorting cylinder 1, an annular material cavity 24 is formed between the rotary cylinder 25 and the sorting cylinder 1, two shielding filter structures are arranged outside the rotary cylinder 25 and are circumferentially and uniformly distributed outside the rotary cylinder 25, each shielding filter structure comprises an arc-shaped shielding piece 31 close to the inner wall of the sorting cylinder 1, a connecting rod 32 connecting the shielding piece 31 and the outer wall of the rotary cylinder 25, an installation frame 33 radially arranged in the material cavity 24, a plurality of telescopic assemblies are arranged between the installation frame 33 and the connecting rod 32, a filter screen 34 is arranged in the middle of the installation frame 33, each telescopic assembly comprises a guide sleeve 35 fixed on the installation frame 33 and a guide column 36 fixed on the connecting rod 32, the guide sleeve 35 and the guide column 36 corresponding to the guide sleeve 35 are arc-shaped structures with the same diameter, the guide posts 36 are slidably connected in the corresponding guide sleeves 35, and return springs capable of driving the guide sleeves 35 to be far away from the guide posts 36 are arranged in the guide sleeves 35;
a driving cylinder 26 is rotatably connected in the rotary drum 25, the driving cylinder 26 is connected with a driving motor, a plurality of first electromagnetic blocks 41 which are in one-to-one correspondence with the shielding and filtering structure are uniformly arranged on the driving cylinder 26 in the circumferential direction, and iron first adsorption blocks 42 matched with the first electromagnetic blocks 41 are arranged on the inner side of the mounting frame 33;
a plurality of second electromagnetic blocks 51 which correspond to the shielding filtering structures one by one are uniformly arranged on the outer wall of the grading cylinder 1 in the circumferential direction, and second iron adsorption blocks 52 which are matched with the second electromagnetic blocks 51 are embedded in the shielding sheets 31;
when the second electromagnetic block 51 adsorbs the second adsorption block 52, one of the shielding sheets 31 shields the inlet of the rough blanking pipe 22; the thin blanking pipe 23 is located at the lowest point of the sorting cylinder 1, the thick blanking pipe 22 and the feeding hopper 21 are located at one side of the vertical radial line of the sorting cylinder 1, and the rotation direction of the driving cylinder 26 is as follows: the direction of the outlet of the feeding hopper 21, the inlet of the coarse blanking pipe 22 and the inlet of the fine blanking pipe 23 can be controlled to be shielded by any shielding piece 31 in sequence.
The first electromagnet block 41 and the second electromagnet block 51 are both electromagnetic structures with controllable magnetic force.
The series connection mode of a plurality of sorting mechanisms is as follows: the fine discharge pipe of one of the sorting mechanisms is connected with the feed hopper 21 of the sorting mechanism behind the fine discharge pipe.
The working principle of the single sorting mechanism is as follows:
calcium carbonate powder after smashing the rubbing crusher constructs is at the uniform velocity and is dropped into hopper 21, start driving motor, make actuating cylinder 26 rotatory, because the adsorption affinity of second electromagnetic block 51 and second adsorption block 52 acts on, the adsorption affinity of first electromagnetic block 41 to first adsorption block 42 is not enough to order about mounting bracket 33 to promote the rotary drum 25 rotatory, but can order about mounting bracket 33 in the state of "shake", this is because first electromagnetic block 41 corresponds with first adsorption block 42, mounting bracket 33 can be to the direction motion that compresses tightly reset spring, when first electromagnetic block 41 breaks away from first adsorption block 42, mounting bracket 33 resets under reset spring's effect, mounting bracket 33 realizes the shake promptly, so that the powder that drops on filter screen 34 can fully filter.
Fig. 1 to 4 show an operating cycle of the drum, wherein fig. 4 shows the fine powder discharge path through the sieve, fig. 1 and 2 show two states of the sieve in the shaking state, and fig. 3 shows the coarse powder discharge state.
The stopped state of the drum 25 is a fine powder sorting state, specifically: under the action of the second electromagnetic block 51 and the second adsorption block 52, the shielding piece 31 corresponding to the filter screen 34 in the working state shields the inlet of the thick blanking pipe 22, the powder material falls onto the filter screen 34 in the working position from the feeding hopper 21, the powder capable of passing through the filter screen 34 falls into the thin blanking pipe 23 at the lowest point, and the thick powder incapable of passing through the filter screen 34 is accumulated on the filter screen 34.
Feeding the meal into the rough blanking pipe 22: when a certain amount of powder which is accumulated on the filter screen 34 in the working position and cannot be filtered is accumulated, the second electromagnetic block 51 can be actively controlled to be powered off, or the current quantity of the second electromagnetic block 51 is reduced to enable the second adsorption block 52 to be separated from the second electromagnetic block 51, or the second adsorption block 52 is separated from the second electromagnetic block 51 under the load of the filter screen 34, the rotary drum 25 starts to rotate, in the rotation process of the rotary drum 25, the two shielding sheets 31 firstly respectively close the outlet of the feeding hopper 21 and the inlet of the fine discharging pipe, then the coarse discharging pipe 22 is opened under the condition that the outlet of the feeding hopper 21 is kept closed, coarse powder on the upper side of the filter screen 34 enters the coarse discharging pipe 22, and after the coarse powder is discharged, the two shielding sheets 31 are reset to the state that the rotary drum 25 stops, and the process is repeated.
A plurality of sorting mechanisms are connected in series: according to the serial sequence, the subdivision selected by the previous sorting mechanism is used as the raw material of the next sorting mechanism, the raw material enters from the feeding hopper 21 and is sorted again, and each filter screen 34 is adaptively arranged, namely, the filter screen 34 is sequentially reduced in aperture by the sequential sorting mechanism.
The setting and control of the second electromagnet block 51 are explained in detail: when the second electromagnetic block 51 is actively controlled, the current of the second electromagnetic block 51 can be controlled when fine powder is sorted, so that the adsorption force between the second electromagnetic block 51 and the second adsorption block 52 is large, and when the feed amount into the hopper 21 reaches a set value, the current of the second electromagnetic block 51 is cut off, so that the rotary drum 25 can rotate under the adsorption force of the first electromagnetic block 41 and the first adsorption block 42, and certainly, the material above the filter screen 34 can drive the rotary drum 25 to rotate; when the second electromagnetic block 51 is fixed with electrified current, the rotation of the rotary drum 25 is controlled by the acting force on the rotary drum 25 in the shaking process after the filter screen 34 bears the load, and when the acting force can drive the second electromagnetic block 51 to be separated from the second adsorption block 52, the rotary drum 25 rotates to discharge coarse powder; of course, the current of the second electromagnetic block 51 can also be controlled in real time, that is, under the correspondence of other data or logic, the current of the second electromagnetic block 51 is reduced when necessary to enable the rotation of the drum 25, and the current of the second electromagnetic block 51 is increased when the drum 25 is required to stop.
It can be seen that the powder concentrator can continuously complete various powder materials with different fineness on line, the filter screen 34 can increase the powder concentration precision and efficiency in a shaking state, the powder concentrator is simple in structure, the powder is in a relatively closed space, and the environmental protection problems of dust emission and the like of a traditional powder concentration mechanism are solved.
The working states of the two sieves 34 are continuously switched, wherein when one sieve 34 is in the working state, the other sieve 34 is in the shaking state, and the idle sieve 34 can clean powder possibly remaining in the pores of the sieve 34 in the shaking process, so that the sieve 34 is kept in the original state, and the powder blocking the sieve 34 and falling out from the idle sieve 34 in the shaking process enters the fine blanking pipe 23.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (2)
1. The powder concentrator for producing calcium carbonate powder is characterized by comprising a plurality of grading mechanisms connected in series, wherein each grading mechanism comprises a grading barrel (1), a feeding hopper (21), a coarse feeding pipe (22) and a fine feeding pipe (23), a rotary barrel (25) is connected in the grading barrel (1) in a rotating manner, an annular material cavity (24) is formed between the rotary barrel (25) and the grading barrel (1), two shielding and filtering structures are arranged outside the rotary barrel (25), the two shielding and filtering structures are circumferentially and uniformly distributed outside the rotary barrel (25), each shielding and filtering structure comprises an arc-shaped shielding sheet (31) close to the inner wall of the grading barrel (1), a connecting rod (32) connecting the shielding sheet (31) with the outer wall of the rotary barrel (25), and a mounting rack (33) radially arranged in the material cavity (24), and a plurality of telescopic assemblies are arranged between the mounting rack (33) and the connecting rod (32), a filter screen (34) is arranged in the middle of the mounting frame (33), the telescopic assembly comprises a guide sleeve (35) fixed on the mounting frame (33) and a guide post (36) fixed on the connecting rod (32), the guide sleeve (35) and the guide post (36) corresponding to the guide sleeve are of arc structures with the same diameter, the guide post (36) is connected in the corresponding guide sleeve (35) in a sliding manner, and a return spring capable of driving the guide sleeve (35) to be far away from the guide post (36) is arranged in the guide sleeve (35);
a driving cylinder (26) is rotatably connected in the rotary cylinder (25), the driving cylinder (26) is connected with a driving motor, a plurality of first electromagnetic blocks (41) which correspond to the shielding and filtering structures one by one are uniformly arranged on the driving cylinder (26) in the circumferential direction, and an iron first adsorption block (42) matched with the first electromagnetic blocks (41) is arranged on the inner side of the mounting frame (33);
a plurality of second electromagnetic blocks (51) which correspond to the shielding filtering structures one by one are uniformly arranged on the outer wall of the grading cylinder (1) in the circumferential direction, and second iron adsorption blocks (52) matched with the second electromagnetic blocks (51) are embedded in the shielding sheets (31);
when the second electromagnetic block (51) adsorbs the second adsorption block (52), one of the shielding sheets (31) shields the inlet of the coarse blanking pipe (22); the thin blanking pipe (23) is located at the lowest point of the sorting cylinder (1), the thick blanking pipe (22) and the feeding hopper (21) are located on one side of a vertical radial line of the sorting cylinder (1), and the rotation direction of the driving cylinder (26) is as follows: the direction of the outlet of the feeding hopper (21), the inlet of the thick discharging pipe (22) and the inlet of the thin discharging pipe (23) can be controlled to be shielded by any shielding piece (31) in sequence;
the series connection mode of a plurality of sorting mechanisms is as follows: the fine discharge pipe of one of the sorting mechanisms is connected with a feed hopper (21) of the sorting mechanism behind the fine discharge pipe.
2. The powder concentrator for producing calcium carbonate powder according to claim 1, wherein the first electromagnet block (41) and the second electromagnet block (51) are both magnetically controllable electromagnetic structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023248764.2U CN214211268U (en) | 2020-12-29 | 2020-12-29 | Powder concentrator for calcium carbonate powder production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023248764.2U CN214211268U (en) | 2020-12-29 | 2020-12-29 | Powder concentrator for calcium carbonate powder production |
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| CN214211268U true CN214211268U (en) | 2021-09-17 |
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| CN202023248764.2U Active CN214211268U (en) | 2020-12-29 | 2020-12-29 | Powder concentrator for calcium carbonate powder production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112570263A (en) * | 2020-12-29 | 2021-03-30 | 湖北科技学院 | Powder concentrator for calcium carbonate powder production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112570263A (en) * | 2020-12-29 | 2021-03-30 | 湖北科技学院 | Powder concentrator for calcium carbonate powder production |
| CN112570263B (en) * | 2020-12-29 | 2024-05-14 | 湖北科技学院 | Powder concentrator for calcium carbonate powder production |
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