CN115780018A - Pre-grinding crushing device - Google Patents
Pre-grinding crushing device Download PDFInfo
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- CN115780018A CN115780018A CN202211588534.1A CN202211588534A CN115780018A CN 115780018 A CN115780018 A CN 115780018A CN 202211588534 A CN202211588534 A CN 202211588534A CN 115780018 A CN115780018 A CN 115780018A
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- driven roller
- crushing device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The invention discloses a pre-grinding crushing device which comprises a rack, a driving roller, a driven roller, a pressure adjusting assembly, a feeding sieve subassembly, a driving assembly, a feeding hole, a first discharging hole, a second discharging hole and a hoister, wherein the driving roller is arranged on the rack; the device drives the drive roll through drive assembly and rotates, and the driven voller is followed the drive roll and is rotated, and the material gets into the wedge roll gap between two running rollers and is discharged through first discharge gate after being extruded breakage, and the material of first discharge gate exhaust and the material of newly adding enter into the feed inlet through the lifting machine, and the material that accords with the standard passes through the feeding sieve subassembly and discharges through the second discharge gate, and the material that does not accord with the standard continues the circulation and extrudes the breakage. The invention mainly aims to provide a pre-grinding crushing device which is used for crushing materials into small particles by extrusion before a tube mill is used, so that the efficiency is improved, and the energy consumption is reduced.
Description
Technical Field
The invention relates to the technical field of material crushing, in particular to a pre-grinding crushing device.
Background
In the grinding and crushing of materials, a large amount of energy consumption needs to be consumed, for example, the electricity consumption of each ton of cement produced in a cement plant is about 60% for grinding, in order to reduce the electricity consumption of grinding equipment, a method of grinding before crushing and grinding after crushing, and a method of more crushing and less grinding are adopted to improve the efficiency, so that equipment such as a roller press used before a vertical mill and a tube mill appears in sequence. In order to improve the grinding efficiency of the materials, the inventor researches a pre-grinding device which is used for crushing the materials into small particles in an extrusion way before a pipe mill and other devices so as to save energy consumption.
Disclosure of Invention
In order to overcome the technical problems in the background art, the invention provides a pre-grinding crushing device to solve the problems.
In order to solve the technical problems, the invention provides the following technical scheme: a pre-grinding crushing device comprises a rack, a driving roller, a driven roller, a pressure adjusting assembly, a feeding sieve subassembly, a driving assembly, a feeding port, a first discharging port, a second discharging port and a lifter, wherein the driving roller and the driven roller are both arranged inside the rack; the material enters from the feeding hole, is fed between the driving roller and the driven roller through the feeding sieve subassembly to be extruded and crushed, is discharged through the first discharging hole after being extruded and crushed, is returned to the feeding hole through the elevator, and is discharged through the second discharging hole through the feeding sieve subassembly, so that the material which meets the standard is continuously and circularly extruded and crushed.
Preferably, the pressure regulating assembly adopts a hydraulic driving mode, the pressure regulating assembly comprises a hydraulic pump, a hydraulic pipeline, a pressurizing pipeline, a balancing weight, a hydraulic cylinder, a pressing beam and a guiding sliding block, the hydraulic pump is connected with the input end of the pressurizing pipeline through the hydraulic pipeline, the output end of the pressurizing pipeline is connected with the hydraulic cylinder, the hydraulic cylinder is installed on the balancing weight, the driving end of the hydraulic cylinder is far away from the balancing weight and is connected with the pressing beam, the two ends of the pressing beam are respectively connected with the guiding sliding block, and the guiding sliding block can be abutted to the driven roller.
Preferably, the number of the hydraulic cylinders is two, and the two hydraulic cylinders are symmetrically arranged on two sides of the pressing beam.
Preferably, the device further comprises a hinge support, and two sides of the pressing beam are respectively connected with the sliding block through the hinge support.
Preferably, the driving assembly comprises a driving motor and a coupler, and the output end of the driving motor is connected with the driving roller through the coupler.
Preferably, the device further comprises a shell, the shell is arranged outside the driving roller and the driven roller and located on the inner side of the rack, and the shell is arranged in a sealing mode.
Preferably, a wear-resistant lining plate is arranged inside the shell.
Preferably, the driving roller and the driven roller are both mounted in the sliding rail of the frame through a rolling bearing and a bearing seat, and the driven roller can slide along the sliding rail.
Preferably, the surface of the extrusion roller of the driving roller is a concave surface, the surface of the extrusion roller of the driven roller is a convex surface, patterns are arranged on the surface of the extrusion roller of the driven roller, and the regression buses of the surface of the extrusion roller of the driving roller and the surface of the extrusion roller of the driven roller are not parallel.
Compared with the prior art, the invention can achieve the following beneficial effects:
1. the dead weight of the driven roller and the pressure applied by the pressure adjusting assembly are used as extrusion crushing force, the pressure is stable, and the energy consumption is reduced;
2. the extrusion roll surfaces of the driving roll and the driven roll are of concave-convex symmetrical structures, so that the axial force can be prevented from being generated through automatic centering;
3. the regression generatrices of the driving roller and the driven roller are not parallel, so that the linear velocities of the generatrices at two sides are different, the shearing force for tearing the material can be generated in the process, and the crushing effect of the material is better;
4. the limiting assembly can ensure the minimum gap between the two rollers and ensure the safe and reliable operation of the equipment;
5. through set up the casing in drive roll and driven voller outside, can avoid the material crushing in-process raise dust.
Drawings
Fig. 1 is a front view of a pre-mill crushing apparatus according to an embodiment of the present invention;
FIG. 2 is a side view of a preground crushing unit according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of a driven roller according to the present invention;
FIG. 4 is a schematic view of the drive roll of the present invention.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, 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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and back … …) in the present embodiment are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-4, the embodiment of the invention discloses a pre-grinding crushing device, which comprises a frame 1, a driving roller 8, a driven roller 7, a shell 2, a pressure adjusting assembly, a feeding sieve subassembly 14, a driving assembly 10, a feeding hole 13, a first discharging hole, a second discharging hole and a lifter. The driving roller 8 and the driven roller 7 are sequentially installed inside the rack 1 from bottom to top, the driving roller 8 is connected with the output end of the driving assembly 10, and the driving roller 8 drives the driven roller 7 to rotate through material extrusion. The top of the frame 1 is provided with a pressure adjusting assembly, and the pressure adjusting assembly can adjust pressure through the extrusion driven roller 7. The material to be crushed enters the device through the feeding hole 13, enters the space between the driving roller 8 and the driven roller 7 through the feeding screen subassembly 14 for extrusion crushing, the feeding screen subassembly 14 is obliquely arranged, the lowest end of the feeding screen subassembly 14 corresponds to the feeding positions of the driving roller 8 and the driven roller 7, the feeding screen subassembly 14 screens the passing material, the material meeting the standard enters the second discharging hole through the feeding screen subassembly 14 for discharging, the material not meeting the standard enters the space between the driving roller 8 and the driven roller 7 for extrusion crushing, and then is discharged through the first discharging hole, and the material discharged through the first discharging hole and the newly added material are returned to the feeding hole 13 through the elevator. According to the pre-grinding crushing device, materials are extruded and crushed into small particles before the tube mill equipment is used, so that the efficiency is improved, and the energy consumption is reduced.
Further, sliding rails 9 are provided on both sides of the frame 1, the driving roller 8 and the driven roller 7 are mounted in the frame 1 through rolling bearings 17 and bearing blocks 16, and the driven roller 7 can slide along the sliding rails 9 through the bearing blocks 16 on both sides. The pressure regulating assembly adopts the hydraulic drive mode, the pressure regulating assembly includes the hydraulic pump, hydraulic line 5, pressurization pipeline 12, the balancing weight 11, pneumatic cylinder 4, pressing beam 3, articulated support piece 6 and direction slider, the hydraulic pump passes through hydraulic line 5 and links to each other with the input of pressurization pipeline 12, the output of pressurization pipeline 12 links to each other with pneumatic cylinder 4, 4 quantity of pneumatic cylinder are two and the symmetry is installed on balancing weight 11, balancing weight 11 and with pressing beam 3 link to each other are kept away from to the drive end of two pneumatic cylinders 4, the both ends of pressing beam 3 are connected with a direction slider through articulated support piece 6 respectively, two direction sliders are respectively slidable mounting in the slip track 9 that frame 1 corresponds, the direction slider can with 16 looks butt of bearing frame of driven voller 7.
Further, install sealed casing 2 between two rollers and the frame 1, sealed casing 2 is sealed with drive roll 8 and driven voller 7 completely, avoids the material raise dust at crushing in-process. The shell 2 is internally provided with a wear-resistant lining plate which is generally made of wear-resistant steel plates.
Further, the driving device comprises a driving motor and a coupler, and the output end of the driving motor is connected with the driving roller 8 through the coupler. The driving motor drives the driving roller 8 to rotate through the coupler, a material is arranged between the two rollers, and along with the rotation of the driving roller 8, the material enters and exits from a wedge-shaped roll gap between the two rollers and is extruded and crushed and then discharged through the first discharge hole.
Furthermore, the surface of the extrusion roller of the driving roller 8 is a concave surface, the surface of the extrusion roller of the driven roller 7 is a convex surface, when the two rollers are matched with each other, the axes are parallel and the gaps are the same, so that the problems of axial force and play generated when materials are extruded are reduced. The regression buses of the extrusion roller surfaces of the driving roller 8 and the driven roller 7 are not parallel, so that the linear velocities of the buses on two sides are different, the shearing force for tearing the material can be generated in the process, and the crushing effect of the material is better.
Furthermore, patterns are arranged on the surface of an extrusion roller of the driven roller 7, the driving roller 8 drives the driven roller 7 to rotate by means of the patterns on the surface of the extrusion roller of the driven roller 7 and the extrusion force between materials, and the driven roller 7 is matched with the driving roller 8 to extrude and crush the materials under the drive of the driving roller 8.
Furthermore, a limiting component 15 is arranged at one end of the driven roller 7 close to the driving roller 8, the limiting component 15 is arranged at the lower part of a bearing seat 16 of the driven roller 7, and the limiting component 15 is used for maintaining the minimum gap between the driven roller 7 and the driving roller 8, so that safe and reliable operation of the equipment is guaranteed.
Further, the feeding sieve subassembly 14 selects a pressure-resistant reaction plate, the reaction plate is obliquely arranged with the horizontal line, and the reaction plate is provided with a sieving hole for passing materials meeting the standard.
When the invention is used, the pressure adjusting component is adjusted to proper pressure, the bearing seat 16 of the driven roller 7 is extruded through the guide slide block, and the pressure automatically applied by the driven roller 7 and the pressure adjusting component is used as the extrusion crushing force of crushed materials. The material to be crushed enters the device through the feed inlet 13, slides to the driving roller 8 and the driven roller 7 through the reaction plate which is arranged obliquely to extrude and grind, and the material which meets the standard directly enters the second discharge port through the reaction plate to be discharged and then goes to the next-stage crushing or grinding equipment through the L1 route; and discharging the materials which do not meet the standard through the first discharge port, conveying the materials to the elevator through an L2 route, returning the materials discharged through the first discharge port and newly added materials to the feed port 13 through the elevator, continuously screening and crushing through the two rollers until the screening is finished.
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 (10)
1. The utility model provides a grind breaker in advance which characterized in that: the automatic feeding device comprises a rack (1), a driving roller (8), a driven roller (7), a pressure adjusting assembly, a feeding sieve subassembly (14), a driving assembly (10), a feeding hole (13), a first discharging hole, a second discharging hole and a lifting machine, wherein the driving roller (8) and the driven roller (7) are installed inside the rack (1), the driving roller (8) is installed at the lower part of the rack (1) and connected with the output end of the driving assembly (10), the driven roller (7) is installed at the upper part of the rack (1) and moves in a matched manner with the driving roller (8), sliding rails (9) are arranged on two sides of the rack (1), two ends of the driven roller (7) are installed in the sliding rails (9) in a sliding manner, the pressure adjusting assembly is arranged at the top of the rack (1), and the pressure adjusting assembly performs pressure adjustment by extruding the driven roller (7); the materials enter from the feeding hole (13), are fed between the driving roller (8) and the driven roller (7) through the feeding screen subassembly (14) to be extruded and crushed, are discharged through the first discharging hole after being extruded and crushed, are returned to the feeding hole (13) through the elevator, and are discharged through the second discharging hole through the feeding screen subassembly (14), so that the materials which meet the standard are continuously circulated and extruded and crushed.
2. The pre-grinding crushing device according to claim 1, characterized in that: the pressure regulating assembly adopts a hydraulic driving mode, the pressure regulating assembly comprises a hydraulic pump, a hydraulic pipeline (5), a pressurizing pipeline (12), a balancing weight (11), a hydraulic cylinder (4), a pressing beam (3) and a guiding sliding block, the hydraulic pump passes through the hydraulic pipeline (5) and the input end of the pressurizing pipeline (12) are connected, the output end of the pressurizing pipeline (12) is connected with the hydraulic cylinder (4), the hydraulic cylinder (4) is installed on the balancing weight (11), the driving end of the hydraulic cylinder (4) is far away from the balancing weight (11) and the pressing beam (3) are connected, two ends of the pressing beam (3) are respectively connected with the guiding sliding block, and the guiding sliding block can be in butt joint with the driven roller (7).
3. The pre-grinding crushing device according to claim 2, characterized in that: the hydraulic cylinders (4) are two in number, and the two hydraulic cylinders (4) are symmetrically arranged on two sides of the pressing beam (3).
4. The pre-grinding crushing device according to claim 2, characterized in that: the pressing beam is characterized by further comprising a hinged support piece (6), and two sides of the pressing beam (3) are connected with the sliding block through the hinged support piece (6) respectively.
5. The pre-grinding crushing device according to claim 1, characterized in that: the driving assembly (10) comprises a driving motor and a coupler, and the output end of the driving motor is connected with the driving roller (8) through the coupler.
6. The pre-grinding crushing device according to claim 1, characterized in that: still include casing (2), casing (2) set up in drive roll (8) with the outside of driven voller (7), casing (2) are located frame (1) is inboard, casing (2) are sealed setting.
7. The pre-grinding crushing device according to claim 6, characterized in that: and a wear-resistant lining plate is arranged inside the shell (2).
8. The pre-grinding crushing device according to claim 1, characterized in that: the driving roller (8) and the driven roller (7) are mounted in the sliding rail (9) of the rack (1) through a rolling bearing (17) and a bearing seat (16), and the driven roller (7) can slide along the sliding rail (9).
9. The pre-grinding crushing device according to claim 1, characterized in that: the extrusion roll surface of the driving roll (8) is a concave surface, the extrusion roll surface of the driven roll (7) is a convex surface, patterns are arranged on the extrusion roll surface of the driven roll (7), and regression buses of the extrusion roll surfaces of the driving roll (8) and the driven roll (7) are not parallel.
10. The pre-grinding crushing device according to claim 1, characterized in that: and one end of the driven roller (7), which is close to the driving roller (8), is provided with a limiting component (15), the limiting component (15) is arranged on the lower part of a bearing seat (16) of the driven roller (7), and the limiting component (15) is used for maintaining the minimum clearance between the driven roller (7) and the driving roller (8).
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| CN202211588534.1A CN115780018B (en) | 2022-12-09 | 2022-12-09 | Pre-grinding crushing device |
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| CN202211588534.1A CN115780018B (en) | 2022-12-09 | 2022-12-09 | Pre-grinding crushing device |
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| CN115780018B CN115780018B (en) | 2023-10-20 |
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