CN112547279A

CN112547279A - Powder roller press with cloth bag dust removal function and process thereof

Info

Publication number: CN112547279A
Application number: CN202011275747.XA
Authority: CN
Inventors: 何海明; 陈卫民; 顾海华
Original assignee: Zhejiang Meike Clean Energy Co ltd
Current assignee: Zhejiang Meike Clean Energy Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-03-26

Abstract

The invention discloses a powder roller press with a cloth bag for dust removal and a process thereof, wherein the powder roller press comprises a bottom plate, a side plate is fixedly arranged at one end of the bottom plate, a rolling shell is fixedly arranged on the inner wall of the upper end of the side plate, two pressing rollers are arranged in the rolling shell, first bearings are fixedly sleeved at two ends of each pressing roller, the first bearings are fixedly embedded in two side walls of the rolling shell, one ends of the pressing rollers extend out of the rolling shell, gears which are mutually meshed are fixedly sleeved on the outer walls of the pressing rollers, a driving device is arranged at the other ends of the pressing rollers, and a feeding pipe is fixedly arranged at the upper end of. Has the advantages that: can separate out iron impurity from the granule material before the roll-in automatically to can carry out breakage and screening to the cake of material that the roll-in produced, make unqualified granule material can carry out the secondary roll-in, and can utilize the filter dust sack to remove dust to powder export and granule material exit suspension dust, thereby can improve the surrounding environment quality.

Description

Powder roller press with cloth bag dust removal function and process thereof

Technical Field

The invention relates to the field of roller presses, in particular to a powder roller press with a cloth bag for dust removal and a process thereof.

Background

A rolling machine, namely a calender, a double-roller machine, a rolling mill, an extrusion mill and a rolling mill, is novel cement energy-saving grinding equipment developed in the middle of the international 80 s, has the functions of replacing a ball mill pre-grinding system with high energy consumption and low efficiency and reducing steel consumption and noise, is designed according to a material bed grinding principle, and is mainly characterized by high pressure, full speed, full material and material bed grinding. The roller press consists of two extrusion rollers which rotate oppositely and synchronously, materials are fed from the upper parts of the two rollers and are continuously brought between the rollers by the extrusion rollers, and the materials become compact cakes and are discharged from the lower part of the machine after being subjected to the high pressure of 100-150 MPa. The discharged cake, in addition to containing a proportion of finished fines. A large number of cracks are generated in the non-finished product particles, so that the grindability of the materials is improved, and the grinding energy consumption can be greatly reduced in the further grinding process.

Often contain iron impurity in the granule material of production concrete, current roller press does not have the function of detaching iron impurity, because iron impurity hardness is great, causes the damage to the compression roller easily to current roller press does not have the function of cake crushing and screening, and can produce a large amount of dust suspensions in the air in discharge outlet department, not only pollutes the surrounding environment quality, can cause great loss to staff's respiratory in addition, is unfavorable for staff's healthy.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

Aiming at the problems in the related art, the invention provides a powder roller press with a bag-type dust collector and a process thereof, which aim to overcome the technical problems in the prior related art.

The technical scheme of the invention is realized as follows:

according to one aspect of the invention, a powder roller press with a bag house dust collector is provided.

The powder roller press with the cloth bag for dust removal comprises a bottom plate, a side plate is fixedly arranged at one end of the bottom plate, a rolling shell is fixedly arranged on the inner wall of the upper end of the side plate, two pressing rollers are arranged in the rolling shell, first bearings are fixedly sleeved at two ends of each pressing roller and fixedly embedded in two side walls of the rolling shell, one end of each pressing roller extends out of the rolling shell, gears which are meshed with each other are fixedly sleeved on the outer wall of the rolling shell, a driving device is arranged at the other end of each pressing roller, an inlet pipe is fixedly arranged at the upper end of the rolling shell, a separation shell is fixedly arranged on the inlet pipe, a feeding hopper is fixedly arranged at the upper end of the separation shell, a magnet column is fixedly arranged in the separation shell, a cylinder is sleeved on the outer wall of the magnet column, a first driving motor is fixedly arranged on the outer wall of the separation shell, a rotating shaft, an impurity discharging pipeline is fixedly arranged at the lower end of the sorting shell, which is far away from one side of the feeding pipe, an impurity collecting box is arranged below the impurity discharging pipeline, a crushing shell is fixedly arranged at the lower end of the rolling shell, a second driving motor is fixedly arranged at both sides of the upper end of the crushing shell, a rotating shaft of the second driving motor extends into the crushing shell, a transmission shaft is fixedly arranged at the lower end of the second driving motor, a plurality of crushing blades are fixedly arranged on the outer wall of the lower end of the transmission shaft in a staggered manner, the lower end of the crushing shell is connected with a screening shell, the screening shell is fixedly connected with the side plate through a connecting block, a screening net is fixedly arranged in the screening shell, the screening net is obliquely arranged, a powder outlet is fixedly arranged at the lower end of the screening shell, a particle material outlet is fixedly arranged at one side, the particle material screening device is characterized in that a particle material collecting box is arranged below the particle material outlet, a dust suction box is arranged on one side of the side plate, a first dust suction cover is fixedly arranged on the inner wall of one side of the side plate and is located on one side of the powder material outlet, a mounting plate is fixedly arranged on the outer wall of one side of the particle material outlet, a second dust suction cover is fixedly arranged below the mounting plate and is located above the particle material collecting box, the first dust suction cover and the second dust suction cover are connected with one side of the upper end of the dust suction box through guide pipes, a fixing frame is fixedly arranged on the inner wall of the upper end of the dust suction box, a dust filtering cloth bag is arranged in the fixing frame, a limit frame matched with the fixing frame is fixedly arranged on the outer wall of the upper end of the dust filtering cloth bag, and a fan is.

Furthermore, the driving device is a third driving motor, the third driving motor is fixed on the outer wall of the rolling shell, and a rotating shaft of the third driving motor is fixedly connected with one end of one of the pressing rollers.

Furthermore, the cross section of the magnet post is arranged to be of a fan-shaped structure.

Furthermore, the fixed cover of pivot outer wall of first driving motor is equipped with the second bearing, just the second bearing is fixed to be inlayed and is established a lateral wall of separation casing.

Furthermore, the outer wall of one side, away from the side plate, of the rolling shell is fixedly provided with a fixing plate, the impurity collecting box is arranged on the fixing plate, and a triangular reinforcing block is fixedly arranged between the fixing plate and the rolling shell.

Furthermore, a bearing seat is fixedly arranged on the bottom plate, and the particle material collecting box is arranged on the bearing seat.

Furthermore, the inner wall of one side of the upper end of the screening shell is fixedly provided with a motor through a connecting rod, the outer wall of a rotating shaft of the motor is fixedly sleeved with an eccentric wheel, and the upper end of the screening net is fixedly provided with a bulge matched with the eccentric wheel.

Furthermore, the dust collection box is fixedly provided with a cover plate through a bolt, a sealing gasket is fixedly arranged below the cover plate, and one side of the dust collection box is fixedly embedded with toughened glass.

According to another aspect of the invention, a process for a powder roller press with bag house dust removal is provided.

The powder roller press with the cloth bag for dust removal comprises the following steps:

removing impurities: adding the particle materials to be crushed into a charging hopper, driving a cylinder to rotate by the operation of a first driving motor, discharging impurities containing iron in the particle materials into an impurity collecting box from an impurity discharging pipeline by utilizing a magnet column in a fan-shaped structure for recycling, and feeding the particle materials without iron into a compression roller shell from a feeding pipe;

rolling: the third driving motor fixedly drives one of the compression rollers to rotate, the rotating compression roller drives the other compression roller to rotate through the gear, so that the two compression rollers can be driven to rotate relatively to roll the granular materials, and the material cakes generated after rolling enter the crushing shell;

crushing: the second driving motor works to drive the transmission shafts on the two sides to rotate, so that the crushing blades arranged on the two sides in a staggered mode can be used for crushing the material cakes, and the crushed powder enters the screening shell;

screening: after the powder enters the screening shell and is screened by the screening net, qualified powder is discharged from a powder outlet and enters a powder collecting box, and unqualified granular materials are discharged from a granular material outlet and enter a granular material collecting box;

secondary rolling: adding the granules in the granule collecting box into a charging hopper for rolling again;

dust removal: meanwhile, the fan is fixed, so that dust floating at the powder outlet and the granular material outlet can be sucked into the dust filtering cloth bag in the dust filtering box, and dust removal of the powder outlet and the granular material outlet is completed.

Furthermore, in the screening process, the motor works to drive the eccentric wheel to rotate and continuously hit the bulge, so that the screening net is driven to vibrate.

Compared with the prior art, the invention has the following beneficial effects: can separate out iron impurity from the granule material before the roll-in automatically, thereby can avoid iron impurity to cause the damage to the compression roller, thereby can increase the life of compression roller, and can carry out breakage and screening to the cake that the roll-in produced, make unqualified granule material can carry out the secondary roll-in, thereby the quality of the powder of promotion production that can be great, and can carry out the roll-in once more to the granule material of screening, thereby can reduce the waste of raw materials, and save the cost, and can utilize the filter dust sack to remove dust powder export and granule material exit suspension dust, thereby can improve the surrounding environment quality, prevent that the dust of suspension from being inhaled by the staff, thereby can prevent that the dust from causing adverse effect to staff's health.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a powder roller press with a bag house dust collector according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a cross-sectional view of a classifier housing in a powder roller press with a bag house dust collector in accordance with an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

FIG. 5 is a cross-sectional view of a screening housing in a powder roller press with a bag house dust collector in accordance with an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a suction box in a powder roller press with a bag house dust collector in accordance with an embodiment of the present invention;

fig. 7 is a process flow diagram of a powder roller press with a bag house dust collector according to an embodiment of the invention.

Reference numerals:

1. a base plate; 2. a side plate; 3. rolling the shell; 4. a compression roller; 5. a first bearing; 6. a gear; 7. a feed pipe; 8. a sorting housing; 9. a hopper; 10. a magnetic column; 11. a cylinder; 12. a first drive motor; 13. a trash removal pipeline; 14. an impurity collecting box; 15. crushing the shell; 16. a second drive motor; 17. a drive shaft; 18. crushing the blade; 19. a screening housing; 20. connecting blocks; 21. screening the net; 22. a powder outlet; 23. a particulate material outlet; 24. a powder collecting box; 25. a granular material collection box; 26. a dust collection box; 27. a first suction hood; 28. mounting a plate; 29. a second dust collection cover; 30. a conduit; 31. a fixing frame; 32. a dust filtering cloth bag; 33. a limiting frame; 34. a fan; 35. a third drive motor; 36. a second bearing; 37. a fixing plate; 38. a triangular reinforcing block; 39. a bearing seat; 40. an electric motor; 41. a connecting rod; 42. an eccentric wheel; 43. a protrusion; 44. a cover plate; 45. and (4) tempering the glass.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

According to an embodiment of the invention, a powder roller press with a bag filter is provided.

The first embodiment is as follows:

referring to fig. 1-6, the powder roller press with cloth bag for dust removal comprises a bottom plate 1, a side plate 2 is fixedly arranged at one end of the bottom plate 1, a rolling shell 3 is fixedly arranged on the inner wall of the upper end of the side plate 2, two pressing rollers 4 are arranged in the rolling shell 3, first bearings 5 are fixedly sleeved at two ends of each pressing roller 4, the first bearings 5 are fixedly embedded in two side walls of the rolling shell 3, one end of each pressing roller 4 extends out of the rolling shell 3, the outer walls of the pressing rollers 4 are fixedly sleeved with gears 6 which are meshed with each other, a driving device is arranged at the other end of each pressing roller 4, a feeding pipe 7 is fixedly arranged at the upper end of the rolling shell 3, a separation shell 8 is fixedly arranged on the feeding pipe 7, a feeding hopper 9 is fixedly arranged at the upper end of the separation shell 8, a magnet column 10 is fixedly arranged in the separation, the outer wall of the separation shell 8 is fixedly provided with a first driving motor 12, a rotating shaft of the first driving motor 12 extends into the separation shell 8 and is fixedly connected with one end of the cylinder 11, one side of the lower end of the separation shell 8, which is far away from the feeding pipe 7, is fixedly provided with an impurity discharge pipeline 13, the impurity discharge pipeline 13 is provided with an impurity collecting box 14, the lower end of the rolling shell 3 is fixedly provided with a crushing shell 15, two sides of the upper end of the crushing shell 15 are fixedly provided with a second driving motor 16, rotating shafts of the second driving motors 16 extend into the crushing shell 15, the lower end of the crushing shell 15 is fixedly provided with a transmission shaft 17, the outer wall of the lower end of the transmission shaft 17 is fixedly provided with a plurality of crushing blades 18 in a staggered manner, the lower end of the crushing shell 15 is connected with a screening shell 19, the screening shell 19 is fixedly connected with the side plate, the screening net 21 is obliquely arranged, the lower end of the screening shell 19 is fixedly provided with a powder outlet 22, one side of the screening shell 19 is fixedly provided with a granular material outlet 23, the granular material outlet 23 is positioned at the lower end of the screening net 21, the powder collecting box 24 is arranged below the powder outlet 22, the granular material collecting box 25 is arranged below the granular material outlet 23, one side of the side plate 2 is provided with a dust collecting box 26, the inner wall of one side of the side plate 2 is fixedly provided with a first dust hood 27, the first dust hood 27 is positioned at one side of the powder outlet 22, the outer wall of the screening shell 19 close to one side of the granular material outlet 23 is fixedly provided with a mounting plate 28, the lower part of the mounting plate 28 is fixedly provided with a second dust hood 29, the second dust hood 29 is positioned above the granular material collecting box 25, and the first dust hood 27 and the second dust hood 29 are both connected with one side of the upper end of the dust collecting box 26 through a guide, a fixed frame 31 is fixedly arranged on the inner wall of the dust collection box 26 close to the upper end, a dust filtering cloth bag 32 is arranged in the fixed frame 31, a limit frame 33 matched with the fixed frame 31 is fixedly arranged on the outer wall of the upper end of the dust filtering cloth bag 32, and a fan 34 is connected to one side of the lower end of the dust collection box 26.

According to the scheme of the invention, iron impurities can be automatically separated from the granular materials before rolling, so that the damage of the iron impurities to the pressing roller 4 can be avoided, the service life of the pressing roller 4 can be prolonged, a cake generated by rolling can be crushed and screened, unqualified granular materials can be rolled for the second time, the quality of produced powder can be greatly improved, the screened granular materials can be rolled again, the waste of raw materials can be reduced, the cost is saved, and the dust filter cloth bag 32 can be used for removing dust from the suspended dust at the powder outlet 22 and the granular material outlet 23, so that the quality of the surrounding environment can be improved, the suspended dust is prevented from being sucked by workers, and the adverse influence of the dust on the health of the workers can be prevented.

Example two:

referring to fig. 3-5, for the driving device, the driving device is a third driving motor 35, the third driving motor 35 is fixed on the outer wall of the rolling shell 3, and a rotating shaft of the third driving motor 35 is fixedly connected with one end of one of the pressing rollers 4; for the magnet column 10, the cross section of the magnet column 10 is arranged to be in a fan-shaped structure; for the first driving motor 12, a second bearing 36 is fixedly sleeved on an outer wall of a rotating shaft of the first driving motor 12, and the second bearing 36 is fixedly embedded in a side wall of the sorting housing 8.

Through the scheme of the invention, the third driving motor 35 can drive one of the compression rollers 4 to rotate, and further can drive the other compression roller 4 to rotate through the gear 6, the rotation directions of the two compression rollers 4 are opposite, the magnet column 10 with the fan-shaped structure can enable iron impurities to be adsorbed on the outer wall of the cylinder 11, and the iron impurities fall off due to the fact that the adsorption force of the magnet column 10 is lost when the magnet column 10 rotates to the position above the impurity discharge pipeline 13, and the second bearing 36 can enable the rotating shaft of the first driving motor 12 to be rotatably connected with the rolling shell 3.

Example three:

referring to fig. 1, for the rolling shell 3, a fixing plate 37 is fixedly disposed on an outer wall of the rolling shell 3 away from the side plate 2, the impurity collecting box 14 is disposed on the fixing plate 37, and a triangular reinforcing block 38 is fixedly disposed between the fixing plate 37 and the rolling shell 3; for the bottom plate 1, a bearing seat 39 is fixedly arranged on the bottom plate 1, and the particle collecting box 25 is arranged on the bearing seat 39.

Through the scheme of the invention, the fixing plate 37 can be used for supporting the impurity collecting box 14, the triangular reinforcing block 38 can increase the firmness of connection between the fixing plate 37 and the rolling shell 3, and the supporting seat 39 can be used for supporting the granular material collecting box 25.

Example four:

referring to fig. 1, 2 and 6, for the sieving shell 19, an inner wall of one side of the upper end of the sieving shell 19 is fixedly provided with a motor 40 through a connecting rod 41, an eccentric wheel 42 is fixedly sleeved on an outer wall of a rotating shaft of the motor 40, and a protrusion 43 matched with the eccentric wheel 42 is fixedly arranged at the upper end of the sieving net 21; for the dust collection box 26, a cover plate 44 is fixedly arranged on the dust collection box 26 through bolts, a sealing gasket is fixedly arranged below the cover plate 44, and toughened glass 45 is fixedly embedded on one side of the dust collection box 26.

Through the scheme of the invention, the motor 40 can drive the eccentric wheel 42 to rotate, so that the eccentric wheel 42 can continuously hit the bulge 43, the sieving net 21 can vibrate, the sieving efficiency of the sieving net 21 is improved, the cover plate 44 can be opened to clean dust in the dust box 26, and the dust accumulation condition in the dust filtering cloth bag 32 can be observed through the toughened glass 45.

Referring to fig. 7, the use of the powder roller press with bag for dust removal includes the following steps:

s101, impurity removal: adding the particle materials to be crushed into a charging hopper 9, driving a cylinder 11 to rotate by the operation of a first driving motor 12, discharging impurities containing iron in the particle materials into an impurity collecting box 14 from an impurity discharging pipeline 13 by utilizing a magnet column 10 in a fan-shaped structure for recycling, and feeding the particle materials without iron into a shell of a compression roller 4 from a feeding pipe 7;

s103, rolling: the third driving motor 35 fixedly drives one of the compression rollers 4 to rotate, the rotating compression roller 4 drives the other compression roller 4 to rotate through the gear 6, so that the two compression rollers 4 can be driven to rotate relatively to roll the granular materials, and the cakes generated after rolling enter the crushing shell 15;

s105, crushing: the second driving motor 16 works to drive the transmission shafts 17 on the two sides to rotate, so that the crushing blades 18 arranged on the two sides in a staggered mode can be used for crushing the material cakes, and the crushed powder enters the screening shell 19;

s107, screening: after the powder enters the screening shell 19 and is screened by the screening net 21, the qualified powder is discharged from the powder outlet 22 and enters the powder collecting box 24, and the unqualified granular material is discharged from the granular material outlet 23 and enters the granular material collecting box 25;

s109, secondary rolling: adding the granules in the granule collecting box 25 into the feeding hopper 9 for rolling again;

s111, dedusting: meanwhile, the fan 34 is fixed to suck the floating dust in the powder outlet 22 and the granular material outlet 23 into the dust filtering cloth bag 32 in the dust filtering box, so as to complete the dust removal of the powder outlet 22 and the granular material outlet 23.

In a further embodiment, during the screening process, the motor 40 operates to rotate the eccentric wheel 42 to continuously hit the protrusions 43, thereby vibrating the screening net 21.

Compared with the prior art, the invention has the following beneficial effects: can automatically separate iron impurities from the granular materials before rolling, thereby avoiding the damage of the iron impurities to the press roller 4, thereby prolonging the service life of the press roller 4, crushing and screening the cakes generated by rolling, carrying out secondary rolling on unqualified granular materials, greatly improving the quality of the produced powder, carrying out secondary rolling on the screened granular materials, reducing the waste of raw materials, saving the cost, and removing dust from the suspended dust at the powder outlet 22 and the granular material outlet 23 by using the dust filtering cloth bag 32, thereby improving the quality of the surrounding environment, preventing the suspended dust from being sucked by workers, preventing the dust from causing adverse effects on the health of the workers, enabling the motor 40 to drive the eccentric wheel 42 to rotate, enabling the eccentric wheel 42 to continuously hit the bulge 43, thereby can make screening net 21 take place the vibration, be favorable to promoting screening net 21's screening efficiency to can open apron 44 and clear up the dust in to dust bin 26, can observe the dust accumulation condition in the dust filtration sack 32 through toughened glass 45 in addition.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The powder roller press with the cloth bag for dust removal is characterized by comprising a bottom plate (1), one end of the bottom plate (1) is fixedly provided with a side plate (2), the inner wall of the upper end of the side plate (2) is fixedly provided with a rolling shell (3), two pressing rollers (4) are arranged in the rolling shell (3), two ends of each pressing roller (4) are fixedly sleeved with a first bearing (5), the first bearings (5) are fixedly embedded in two side walls of the rolling shell (3), one end of each pressing roller (4) extends out of the rolling shell (3), the outer wall of each pressing roller is fixedly sleeved with a gear (6) which is meshed with each other, the other end of each pressing roller (4) is provided with a driving device, the upper end of the rolling shell (3) is fixedly provided with a feeding pipe (7), the feeding pipe (7) is fixedly provided with a separation shell (8), the upper end of the separation shell (8) is, the sorting device is characterized in that a magnet column (10) is fixedly arranged in the sorting shell (8), a cylinder (11) is sleeved on the outer wall of the magnet column (10), a first driving motor (12) is fixedly arranged on the outer wall of the sorting shell (8), a rotating shaft of the first driving motor (12) extends into the sorting shell (8) and is fixedly connected with one end of the cylinder (11), a trash discharging pipeline (13) is fixedly arranged on one side of the inlet pipe (7) at the lower end of the sorting shell (8), an impurity collecting box (14) is arranged below the trash discharging pipeline (13), a crushing shell (15) is fixedly arranged at the lower end of the rolling shell (3), a second driving motor (16) is fixedly arranged on two sides of the upper end of the crushing shell (15), a transmission shaft (17) is fixedly arranged in the crushing shell (15) at the lower end of the second driving motor (16), a plurality of crushing blades (18) are fixedly arranged on the outer wall of the lower end of the transmission, the crushing shell (15) is connected with a screening shell (19) at the lower end, the screening shell (19) is fixedly connected with the side plate (2) through a connecting block (20), a screening net (21) is fixedly arranged in the screening shell (19), the screening net (21) is obliquely arranged, a powder outlet (22) is fixedly arranged at the lower end of the screening shell (19), a granular material outlet (23) is fixedly arranged on one side of the screening shell (19), the granular material outlet (23) is positioned at the lower end of the screening net (21), a powder collecting box (24) is arranged below the powder outlet (22), a granular material collecting box (25) is arranged below the granular material outlet (23), a dust suction box (26) is arranged on one side of the side plate (2), a first suction hood (27) is fixedly arranged on the inner wall of one side of the side plate (2), and the first suction hood (27) is positioned on one side of the powder outlet (22), screening casing (19) are close to fixed mounting panel (28) that is equipped with of granule material export (23) one side outer wall, fixed second suction hood (29) that is equipped with under mounting panel (28), just second suction hood (29) are located granule material collecting box (25) top, first suction hood (27) with second suction hood (29) all through pipe (30) with suction box (26) upper end one side is connected, suction box (26) are close to the fixed frame (31) that is equipped with of upper end inner wall, be equipped with in fixed frame (31) and strain dirt sack (32), strain dirt sack (32) upper end outer wall fixed be equipped with fixed frame (31) assorted spacing frame (33), suction box (26) lower extreme one side is connected with fan (34).

2. The powder roller press with the bag-type dust collector of claim 1, wherein the driving device is a third driving motor (35), the third driving motor (35) is fixed on the outer wall of the rolling shell (3), and the rotating shaft of the third driving motor (35) is fixedly connected with one end of one of the pressing rollers (4).

3. The powder roller press with the bag dust removal function as claimed in claim 2, wherein the cross section of the magnet column (10) is arranged in a fan-shaped structure.

4. The powder roller press with the bag-type dust collector as claimed in claim 3, wherein a second bearing (36) is fixedly sleeved on the outer wall of the rotating shaft of the first driving motor (12), and the second bearing (36) is fixedly embedded in one side wall of the sorting shell (8).

5. The powder roller press with the bag dust collector of claim 4, wherein a fixing plate (37) is fixedly arranged on the outer wall of one side, away from the side plate (2), of the rolling shell (3), the impurity collecting box (14) is arranged on the fixing plate (37), and a triangular reinforcing block (38) is fixedly arranged between the fixing plate (37) and the rolling shell (3).

6. The powder roller press with the bag type dust collector of claim 5, wherein a bearing seat (39) is fixedly arranged on the bottom plate (1), and the particle material collecting box (25) is arranged on the bearing seat (39).

7. The powder roller press with the bag-type dust collector as claimed in claim 6, wherein a motor (40) is fixedly arranged on the inner wall of one side of the upper end of the screening shell (19) through a connecting rod (41), an eccentric wheel (42) is fixedly sleeved on the outer wall of a rotating shaft of the motor (40), and a protrusion (43) matched with the eccentric wheel (42) is fixedly arranged at the upper end of the screening net (21).

8. The powder roller press with the bag-type dust collector of claim 7, wherein a cover plate (44) is fixedly arranged on the dust collection box (26) through bolts, a sealing gasket is fixedly arranged below the cover plate (44), and toughened glass (45) is fixedly embedded on one side of the dust collection box (26).

9. The process of the powder roller press with the bag dust removal function is characterized by comprising the following steps of:

removing impurities: adding the particle materials to be crushed into a feeding hopper (9), driving a cylinder (11) to rotate by a first driving motor (12), discharging impurities containing iron in the particle materials into an impurity collecting box (14) from an impurity discharging pipeline (13) by utilizing a magnet column (10) in a fan-shaped structure for recycling, and feeding the particle materials without iron into a shell of a compression roller (4) from a feeding pipe (7);

rolling: a third driving motor (35) fixedly drives one of the compression rollers (4) to rotate, the rotating compression roller (4) drives the other compression roller (4) to rotate through a gear (6), so that the two compression rollers (4) can be driven to rotate relatively to roll the granular materials, and the cakes generated after rolling enter the crushing shell (15);

crushing: the second driving motor (16) works to drive the transmission shafts (17) on the two sides to rotate, so that the material cake can be crushed by the crushing blades (18) arranged on the two sides in a staggered mode, and crushed powder enters the screening shell (19);

screening: after the powder enters the screening shell (19) and is screened by the screening net (21), qualified powder is discharged from the powder outlet (22) and enters the powder collecting box (24), and unqualified granular material is discharged from the granular material outlet (23) and enters the granular material collecting box (25);

secondary rolling: adding the granules in the granule collecting box (25) into a feeding hopper (9) for rolling again;

dust removal: meanwhile, the fan (34) is fixed and can suck the floating dust at the powder outlet (22) and the particle outlet (23) into a dust filtering cloth bag (32) in the dust filtering box, so that the dust removal of the powder outlet (22) and the particle outlet (23) is completed.

10. The process of the powder roller press with the bag-type dust collector as claimed in claim 9, wherein the motor (40) works to drive the eccentric wheel (42) to rotate and continuously hit the bumps (43) in the screening process, so as to drive the screening net (21) to vibrate.