CN110975752A - Scraper component for disc pelletizer and disc pelletizer with same - Google Patents
Scraper component for disc pelletizer and disc pelletizer with same Download PDFInfo
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- CN110975752A CN110975752A CN201911282268.8A CN201911282268A CN110975752A CN 110975752 A CN110975752 A CN 110975752A CN 201911282268 A CN201911282268 A CN 201911282268A CN 110975752 A CN110975752 A CN 110975752A
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- scraper
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/14—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating dishes or pans
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Abstract
The invention discloses a scraper component for a disc pelletizer and the disc pelletizer with the same, wherein the disc pelletizer comprises a rack and a disc, the disc is rotatably connected on the rack, the disc is arranged obliquely to the horizontal plane, the disc comprises an inner bottom wall and an inner side peripheral wall, the scraper component is connected with the rack and is arranged opposite to the inner bottom wall, the scraper component comprises a scraper for scraping off redundant materials bonded on the disc, and the scraper is an alloy ceramic part. According to the scraper component provided by the embodiment of the invention, the wear resistance is good, the maintenance is less, the operation is stable, the service life is long, and the pelletizing quality and the yield are high.
Description
Technical Field
The invention relates to the technical field of pelletizer, in particular to a scraper component for a disc pelletizer and the disc pelletizer with the scraper component.
Background
The disk pelletizer is disk pelletizing equipment for pelletizing fine grain powder into granular material with granularity meeting the requirement of the next step. The scraper is used as an important part of the disc pelletizer, and the performance of the scraper directly influences the pelletizing quality and yield of the disc pelletizer.
The scraper in the related technology is generally made of common carbon steel, the scraping capability of the scraper made of the common carbon steel is reduced due to serious abrasion, materials in a disc become compact while rolling into a ball, the surface temperature of the materials is correspondingly improved, the bonding of the materials is accelerated, the material layer is thickened, and the equipment load and the power consumption are correspondingly increased. The material layer on the bottom wall of the disc becomes smooth, the mother ball cannot roll to form balls on the smooth surface, both rolling and sliding exist, the track is not clear and standard, and the ball forming rate and the ball forming quality are reduced. In addition, the scraper made of common carbon steel is worn seriously, so that the replacement is frequent, and the pelletizing efficiency is reduced.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a scraper assembly for a pelletizer having good wear resistance, less maintenance, smooth operation, long life, and high pelletizing quality and yield.
The invention also provides a disc pelletizer with the scraper component.
According to the scraper component for the disc pelletizer, the disc pelletizer comprises a frame and a disc, the disc is rotatably connected onto the frame, the disc is arranged obliquely to the horizontal plane, the disc comprises an inner bottom wall and an inner side peripheral wall, the scraper component is connected with the frame and is arranged opposite to the inner bottom wall, the scraper component comprises a scraper for scraping off excess materials bonded on the disc, and the scraper is made of alloy ceramic.
The scraper component for the disc pelletizer according to the embodiment of the invention has the advantages of good wear resistance, less maintenance, stable operation, long service life, and high pelletizing quality and yield.
In addition, the scraper component for the disc pelletizer according to the embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention the scraper assembly comprises a bottom scraper assembly comprising a bottom scraper for scraping off excess material adhering to the inner bottom wall of the disc, the bottom scraper being an alloyed ceramic piece. Through making the scraper subassembly include end scraper subassembly, from this can be at pelletizer during operation, end scraper subassembly can in time scrape the unnecessary material that bonds on the interior diapire of disc, just be struck off when the bed charge knot is not too thick, the material piece of scraping is not more than the reasonable granularity of cue ball, the material piece continues the pelletization and obtains ideal green ball size easily, make the end of a plate keep necessary bed of material thickness in addition, this kind of end of a plate is not only flat but also has certain roughness, the friction between spherule and the bed charge has been increased, in order to improve the growth rate of spherule. Therefore, the problems that the material layer on the inner bottom wall of the disc becomes thick, smooth and compact, the mother ball cannot roll to form balls on the smooth surface, the rolling and sliding exist, the track is not clear and standard, and the ball forming rate and the ball forming quality are reduced can be solved. In addition, the bottom scraper is made of the alloy ceramic part, so that the bottom scraper is good in wear resistance, less in maintenance, stable in operation, long in service life, and high in pelletizing quality and yield.
According to one embodiment of the present invention, the bottom scraper assembly further comprises a bottom scraper motor, the bottom scraper motor is connected to the frame, and an output shaft of the bottom scraper motor is connected to the bottom scraper to drive the bottom scraper to rotate. By the rotation of the bottom blade itself, the bottom blade appears more times per unit time at each site than the bottom blade which is fixed against rotation, which contributes to the improvement of pellet yield and quality.
According to one embodiment of the invention, the bottom scraper comprises a plurality of bottom scrapers, the bottom scraper assembly further comprises a bottom scraper support, the plurality of bottom scrapers are circumferentially connected to the bottom scraper support at intervals, and an output shaft of the bottom scraper motor is connected to the bottom scraper support. Through setting up a plurality of end scrapers for scrape effectual, scrape efficiently.
According to one embodiment of the invention, the bottom scraper support is detachably connected to the bottom scraper. The bottom scraper support and the bottom scraper are detachably connected, so that the bottom scraper is reliable and convenient to fix, adjust and replace.
According to one embodiment of the invention, the doctor blade holder comprises: an annular frame to which a plurality of said bottom scrapers are circumferentially connected at intervals; the connecting part is arranged in the frame, and an output shaft of the bottom scraper motor is connected with the connecting part; a plurality of splice bars, it is a plurality of the splice bar is all located the frame with between the connecting portion, it is a plurality of the splice bar is along circumference spaced apart setting, every the one end of splice bar with connecting portion link to each other and the other end with the frame links to each other. Connecting portion and frame form a whole through the connecting rib, and the output shaft of end scraper motor links to each other through with connecting portion to realize end scraper motor and the holistic connection of end scraper support, thereby end scraper motor can drive end scraper support and rotate.
According to one embodiment of the invention, the bottom scraper assembly further comprises a bottom scraper attachment base, the bottom scraper motor being connected to the frame via the bottom scraper attachment base. Through setting up end scraper connecting seat for the connection between end scraper motor and the frame is nimble more convenient.
According to one embodiment of the invention, the bottom scraper motor is a variable frequency motor. Therefore, the rotary speed of the bottom scraper can be adjusted, and the pelletizing quality is good on the premise of meeting the production requirements of the process.
According to one embodiment of the invention, the bottom blade assembly comprises two spaced apart blades, and the rotation trajectory of one of the bottom blades of the two bottom blade assemblies passes through the center of the circular disc. This prevents the accumulation of a primer in the center of the disk.
According to one embodiment of the invention the doctor assembly comprises a side doctor assembly arranged adjacent to the inner circumferential wall of the disc, the side doctor assembly comprising a side doctor blade for scraping off excess material adhering to the inner circumferential wall of the disc, the side doctor blade being an alloyed ceramic piece. Through making the scraper subassembly include the side scraper subassembly, the unnecessary material that bonds on the inboard perisporium of disc can in time be scraped to the side scraper subassembly, avoids qualified green ball to be blocked and unable normal discharge by the unnecessary material that bonds on the inboard perisporium of disc to guarantee pelletizing quality and output. In addition, the side scraper is made of the alloy ceramic part, so that the side scraper is good in wear resistance, less in maintenance, stable in operation, long in service life, and high in pelletizing quality and yield.
According to one embodiment of the invention, the side scraper assembly further comprises a side scraper motor, the side scraper motor being connected to the frame, an output shaft of the side scraper motor being connected to the side scraper for driving the side scraper in rotation. By the rotation of the side scraper, the number of times of the inner side scraper appearing at each part in unit time is more than that of the fixed non-rotating side scraper, and the scraping effect is good.
According to one embodiment of the invention, the side blade assembly further comprises a side blade connection mount, the side blade motor being connected to the frame via the side blade connection mount. Through setting up the side scraper connecting seat for the connection between side scraper motor and the frame is nimble more convenient.
According to one embodiment of the invention, the side scraper motor is a variable frequency motor. Thereby facilitating adjustment of the side-cutter rotational speed.
According to one embodiment of the invention, the side scraper comprises a plurality of side scrapers, and the side scraper assembly further comprises a side scraper support to which the output shaft of the side scraper motor is connected, the plurality of side scrapers being connected to the side scraper support at intervals. Through setting up a plurality of side scrapers, can scrape the unnecessary material that bonds on the inboard perisporium of disc more in time, can make things convenient for the connection between side scraper motor and a plurality of side scrapers through setting up side scraper support in addition.
According to one embodiment of the invention the plurality of side blades are divided into groups, each group comprising a plurality of side blades, the groups of side blades being arranged at intervals along the length of the side blade support, the plurality of side blades in each group being arranged at intervals along the circumference of the side blade support. Thereby making the scraping effect better.
According to one embodiment of the invention, the side scraper is detachably connected to the side scraper support. The side scraper support and the side scraper are detachably connected, so that the side scraper is reliable and convenient to fix, adjust and replace.
A pelletizing disk according to an embodiment of the second aspect of the invention comprises: a doctor assembly according to an embodiment of the first aspect of the invention described above; the scraper assembly is connected with the rack and is opposite to the inner bottom wall.
According to the disc pelletizer of the embodiment of the present invention, by providing the scraper assembly according to the embodiment of the first aspect of the present invention, the disc pelletizer has all the advantages of the scraper assembly, and the description is omitted here.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a pelletizer according to an embodiment of the present invention;
figure 2 is a schematic view of the bottom blade assembly shown in figure 1.
Reference numerals:
a disc pelletizer 100;
a bottom scraper assembly 1; a bottom scraper 11;
a bottom scraper motor 12;
a bottom scraper support 13; a frame 131; a connecting portion 132; the connecting ribs 133;
bottom scraper attachment seat 14;
a side doctor assembly 2; a side blade motor 21; side scraper attachment seats 22;
a frame 3;
a disc 4; an inner bottom wall 41; an inner peripheral wall 42.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A blade assembly for a pelletizer 100 according to an embodiment of the present invention will be described with reference to fig. 1-2, wherein the pelletizer 100 includes a frame 3 and a disk 4, the disk 4 is rotatably connected to the frame 3, the disk 4 is disposed obliquely to the horizontal plane, the disk 4 includes an inner bottom wall 41 and an inner side peripheral wall 42, the frame 3 is used for mounting and supporting the disk 4, and the disk 4 rotates on the frame 3 when the pelletizer 100 operates.
Referring to fig. 1, a scraper assembly, which is an alloy ceramic member, is connected to the frame 3 and is disposed opposite to the inner bottom wall 41, and includes a scraper for scraping off the surplus material adhered to the disk 4.
It can be understood that, when the pelletizer 100 works, the excessive material will generally adhere to the inner bottom wall 41 and the inner side peripheral wall 42 of the disk 4, if the excessive material adhered to the inner bottom wall 41 of the disk 4 is not scraped in time, the material layer on the inner bottom wall 41 of the disk 4 will become thick, smooth and compact, the mother ball cannot roll on a smooth surface to form a ball, both rolling and sliding exist, the track is not clear and is not standard, and the ball forming rate and the ball forming quality are reduced; if the excessive material adhered to the inner side peripheral wall 42 of the disc 4 is not scraped in time, the discharge of qualified green pellets is influenced, the qualified green pellets are blocked by the excessive material adhered to the inner side peripheral wall 42 of the disc 4 and then roll for a circle in the disc pelletizer 100 until the qualified green pellets are discharged, the waste pellets can also obstruct the normal discharge of other qualified green pellets and cause vicious circle, and therefore, if the excessive material adhered to the inner side peripheral wall 42 of the disc 4 is not scraped in time, the yield of the green pellets can be greatly reduced.
The disc pelletizer 100 is provided with a scraper component, the scraper component comprises a scraper used for scraping off the redundant materials bonded on the disc 4, and the redundant materials bonded on the disc 4 are scraped off in time through the scraper, so that the pelletizing quality and yield can be ensured.
The scraper in the related technology is generally made of common carbon steel, the scraping capability of the scraper made of the common carbon steel is reduced due to serious abrasion, the materials in the disc 4 become compact while rolling into balls, the surface temperature of the materials is correspondingly improved, the bonding of the materials is accelerated, the material layer is thickened, and the equipment load and the power consumption are correspondingly increased. The material layer on the bottom wall of the disc 4 becomes smooth, the mother ball can not roll to form balls on the smooth surface, both rolling and sliding exist, the track is not clear and standard, and the ball forming rate and the ball forming quality are reduced. In addition, the scraper made of common carbon steel is worn seriously, so that the replacement is frequent, and the pelletizing efficiency is reduced.
In order to solve the problems, the scraper is made of the alloy ceramic material, so that the scraper has the advantages of good wear resistance, less maintenance, stable operation, long service life, high pelletizing quality and high yield.
The scraper component for the disc pelletizer 100 according to the embodiment of the present invention has the advantages of good wear resistance, less maintenance, stable operation, long service life, high pelletizing quality and high yield.
In one embodiment of the invention, as shown in fig. 1-2, the blade assembly comprises a bottom blade assembly 1, the bottom blade assembly 1 comprises a bottom blade 11 for scraping off excess material adhered to the inner bottom wall 41 of the disc 4, the bottom blade 11 is an alloyed ceramic piece, i.e. the bottom blade 11 is made of an alloyed ceramic material. Through making the scraper subassembly include end scraper subassembly 1, can be from this at the disc pelletizer 100 during operation, end scraper subassembly 1 can in time scrape off the unnecessary material that bonds on the interior diapire 41 of disc 4, just be scraped when the bed charge knot is not too thick, the material piece of scraping is not more than the reasonable granularity of cue ball, the material piece continues the balling and obtains ideal green ball size easily, make the bottom of a plate keep necessary bed of material thickness in addition, this kind of bottom of a plate is not only flat but also has certain roughness, increased the friction between spherule and the bed charge, in order to improve the growth rate of spherule. Namely, the scraper component comprises the bottom scraper component 1, and the bottom scraper 11 of the bottom scraper component 1 is made of the ceramic alloy, so that the problems that the material layer on the bottom wall 41 in the disc 4 becomes thick, smooth and compact, a mother ball cannot roll to form a ball on the smooth surface, the ball rolls and slides, the track is not clear, the ball is not standard, and the ball forming rate and the ball forming quality are reduced can be avoided. In addition, the bottom scraper 11 is made of the alloy ceramic, so that the bottom scraper 11 is good in wear resistance, less in maintenance, stable in operation, long in service life, and high in pelletizing quality and yield.
Further, as shown in fig. 1-2, the bottom scraper assembly 1 further comprises a bottom scraper motor 12, the bottom scraper motor 12 is connected to the frame 3, an output shaft of the bottom scraper motor 12 is connected to the bottom scraper 11 to drive the bottom scraper 11 to rotate, and the bottom scraper 11 rotates in a direction opposite to the rotation direction of the disc 4. The bottom blade 11 appears more times per unit time at each site than the bottom blade 11, which is fixed against rotation, by the rotation of the bottom blade 11 itself, which contributes to the improvement of pellet yield and quality. Of course, the application is not limited thereto, and the bottom blade 11 may also be non-rotatable with respect to the frame 3.
Preferably, as shown in fig. 1-2, the bottom scraper 11 comprises a plurality of bottom scrapers, the bottom scraper assembly 1 further comprises a bottom scraper support 13, the plurality of bottom scrapers 11 are circumferentially connected to the bottom scraper support 13 at intervals, and an output shaft of the bottom scraper motor 12 is connected to the bottom scraper support 13. The bottom scraper motor 12 drives the bottom scraper support 13 to rotate, thereby driving the plurality of bottom scrapers 11 to rotate. Through setting up a plurality of end scrapers 11 for scrape effectual, scrape efficiently. It will be appreciated that the trajectories of rotation of the plurality of drag blades 11 should not overlap with each other to reduce drag of the drag blades 11 against pelletizer movement, reduce disk wear and reduce the load on the drag blade motor 12.
Alternatively, the bottom blade support 13 may be detachably connected to the bottom blade 11, for example, by a snap-fit arrangement or threaded fasteners. The bottom scraper 11 is fixed, adjusted and replaced reliably and conveniently by detachably connecting the bottom scraper support 13 with the bottom scraper 11.
In one embodiment of the present invention, as shown in fig. 1-2, the bottom blade support 13 includes a ring-shaped frame 131, a connecting portion 132, and a plurality of connecting ribs 133, the plurality of bottom blades 11 are circumferentially connected to the frame 131 at intervals, the connecting portion 132 is provided in the frame 131, the output shaft of the bottom blade motor 12 is connected to the connecting portion 132, the plurality of connecting ribs 133 are each provided between the frame 131 and the connecting portion 132, the plurality of connecting ribs 133 are circumferentially arranged at intervals, and one end of each connecting rib 133 is connected to the connecting portion 132 and the other end is connected to the frame 131. The connecting portion 132 and the frame 131 are integrally formed by the connecting rib 133, and the output shaft of the bottom blade motor 12 is connected to the connecting portion 132, so that the bottom blade motor 12 is integrally connected to the bottom blade support 13, and the bottom blade motor 12 can drive the bottom blade support 13 to rotate.
In one embodiment of the present invention, as shown in fig. 1-2, bottom blade assembly 1 further includes a bottom blade attachment base 14, and bottom blade motor 12 is coupled to frame 3 via bottom blade attachment base 14, specifically, bottom blade motor 12 is coupled to bottom blade attachment base 14, and bottom blade attachment base 14 is coupled to frame 3. By providing the bottom blade connecting seat 14, the connection between the bottom blade motor 12 and the frame 3 is more flexible and convenient.
In an embodiment of the present invention, the bottom scraper motor 12 is a variable frequency motor, which is beneficial to the adjustment of the rotation speed of the bottom scraper 11, so that the pelletizing quality is good on the premise of meeting the production requirements of the process.
In one embodiment of the present invention, as shown in fig. 1, the bottom blade assembly 1 includes two bottom blades 11 spaced apart from each other, and a rotation locus of one bottom blade 11 of the two bottom blade assemblies 1 passes through the center of the disc 4, whereby accumulation of the primer at the center of the disc 4 can be prevented.
In one embodiment of the invention, as shown in fig. 1, the blade assembly comprises a side blade assembly 2, the side blade assembly 2 being arranged adjacent to the inner circumferential wall 42 of the disc 4, the side blade assembly 2 comprising a side blade for scraping off excess material adhering to the inner circumferential wall 42 of the disc 4, the side blade being an alloyed ceramic piece, i.e. the side blade being made of an alloyed ceramic material. Through making the scraper subassembly include side scraper subassembly 2, the unnecessary material that bonds on the inboard perisporium 42 of disc 4 can in time be scraped to side scraper subassembly 2, avoids qualified green ball to be blocked and unable normal discharge by the unnecessary material that bonds on the inboard perisporium 42 of disc 4 to guarantee pelletizing quality and output. In addition, the side scraper is made of the alloy ceramic part, so that the side scraper is good in wear resistance, less in maintenance, stable in operation, long in service life, and high in pelletizing quality and yield.
Further, as shown in fig. 1, the side blade assembly 2 further includes a side blade motor 21, the side blade motor 21 is connected to the frame 3, and an output shaft of the side blade motor 21 is connected to the side blade to drive the side blade to rotate. By the rotation of the side scraper, the number of times of the inner side scraper appearing at each part in unit time is more than that of the fixed non-rotating side scraper, and the scraping effect is good. Of course, the present application is not limited thereto, and the side blade may not rotate with respect to the frame 3.
In one embodiment of the present invention, as shown in fig. 1, the side blade assembly 2 further includes a side blade connecting base 22, the side blade motor 21 is connected to the frame 3 through the side blade connecting base 22, specifically, the side blade motor 21 is connected to the side blade connecting base 22, and the side blade connecting base 22 is connected to the frame 3, thereby achieving connection between the side blade motor 21 and the frame 3, and connection between the side blade motor 21 and the frame 3 is more flexible and convenient by providing the side blade connecting base 22.
In one embodiment of the invention the side doctor motor 21 is a variable frequency motor, whereby the adjustment of the side doctor rotational speed is facilitated.
In one embodiment of the invention, the side blade includes a plurality of side blades, and the side blade assembly 2 further includes a side blade support to which an output shaft of the side blade motor 21 is connected, the plurality of side blades being attached to the side blade support at spaced intervals. By providing a plurality of side scrapers, the excess material adhered to the inside peripheral wall 42 of the disc 4 can be scraped off more timely, and the side scraper motor 21 and the plurality of side scrapers can be connected conveniently by providing a side scraper support. Further, the plurality of side scrapers are divided into a plurality of groups, each group comprises the plurality of side scrapers, the plurality of groups of side scrapers are arranged at intervals along the length direction of the side scraper support, and the plurality of side scrapers in each group are arranged at intervals along the circumferential direction of the side scraper support. Thereby making the scraping effect better.
Alternatively, the side doctor and the side doctor holder may be detachably connected, for example by means of a snap-fit construction or a threaded fastener or the like. The side scraper support and the side scraper are detachably connected, so that the side scraper is reliable and convenient to fix, adjust and replace.
A disc pelletizer 100 according to an embodiment of the second aspect of the present invention will now be described with reference to fig. 1-2.
As shown in fig. 1, a pelletizing disc 100 according to an embodiment of the present invention includes: a frame 3, a disc 4 and a doctor assembly according to the above-described embodiment of the first aspect of the invention.
Understandably, when the pelletizer is in operation, redundant materials are generally adhered to the inner bottom wall 41 and the inner side peripheral wall 42 of the disc 4, if the redundant materials adhered to the inner bottom wall 41 of the disc 4 are not scraped in time, the material layer on the inner bottom wall 41 of the disc 4 becomes thick, smooth and compact, a mother ball cannot roll on a smooth surface to form a ball, the rolling and sliding exist, the track is not clear and is not standard, and the ball forming rate and the ball forming quality are reduced; if the excessive material adhered to the inner side peripheral wall 42 of the disc 4 is not scraped in time, the discharge of qualified green pellets is influenced, the qualified green pellets are blocked by the excessive material adhered to the inner side peripheral wall 42 of the disc 4 and then roll for a circle in the disc pelletizer 100 until the qualified green pellets are discharged, the waste pellets can also obstruct the normal discharge of other qualified green pellets and cause vicious circle, and therefore, if the excessive material adhered to the inner side peripheral wall 42 of the disc 4 is not scraped in time, the yield of the green pellets can be greatly reduced.
The disc pelletizer 100 is provided with a scraper component, the scraper component comprises a scraper used for scraping off the redundant materials bonded on the disc 4, and the redundant materials bonded on the disc 4 are scraped off in time through the scraper, so that the pelletizing quality and yield can be ensured. In addition, the scraper of the scraper component is an alloy ceramic part, namely the scraper is made of the alloy ceramic material, so that the scraper has the advantages of good wear resistance, less maintenance, stable operation, long service life, high pelletizing quality and high yield.
According to the disc pelletizer 100 of the embodiment of the present invention, by providing the scraper assembly implemented according to the first aspect of the present invention, the disc pelletizer 100 has all the advantages of the scraper assembly, such as good wear resistance, less maintenance, smooth operation, long service life, high pelletizing quality and high yield.
In a specific embodiment of the invention, as shown in fig. 1-2, the diameter of the disc 4 is 5.5m or 6m, the blade assembly comprises two of the above-mentioned bottom blade assemblies 1 and one of the above-mentioned side blade assemblies 2, each bottom blade assembly 1 comprises five of the above-mentioned bottom blades 11, the five bottom blades 11 are circumferentially connected to the bottom blade support 13 at intervals, the two bottom blade assemblies 1 have ten bottom blades 11, and the rotation track of one bottom blade 11 of the ten bottom blades 11 passes through the center of the disc 4, thereby preventing the bottom material from accumulating in the center of the disc 4. The two bottom scraper assemblies 1 and the side scraper assembly 2 act together to timely and effectively clean the bottom and side materials of the disc 4, the bottom and side materials are scraped when the bottom materials are not too thick, the scraped material blocks are not larger than the reasonable granularity of the mother ball, and the material blocks continue to be pelletized to easily obtain the ideal green ball size.
It will be appreciated that the doctor assembly of the present application is arranged in the cue ball zone and in the transition zone, the balling zone cannot be arranged, otherwise the already manufactured ball will be destroyed. The scraper assembly is configured to maximize the utilization of the working area of the disc 4 without compromising the motion characteristics of the cue ball.
In addition, the research shows that the distribution condition of the scraper track, the time of finishing material scraping and the like are related to a plurality of parameters such as the rotating speed of the scraper, the rotating speed of the disc 4, the number of the scrapers, the inclination angle of the disc 4, the blanking position and the like, but the most critical parameter is the rotating speed of the scraper and the rotating speed of the disc 4, and the scraper and the disc 4 should be matched. If the rotating speed of the scraper is over high relative to the rotating speed of the disc 4, the track density is high, the material is quickly damaged by the scraper after balling, the balling quality is poor, and the yield of the pelletizer is reduced. If the rotating speed of the scraper is too low relative to the rotating speed of the disc 4, the materials cannot be scraped well, and even an area which cannot be scraped can be formed.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. 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 the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (17)
1. The utility model provides a scraper subassembly for balling disc, a serial communication port, balling disc includes frame and disc, the disc rotates to be connected in the frame, the disc is inclined to the horizontal plane setting, the disc includes interior diapire and inboard perisporium, the scraper subassembly with the frame link to each other and with interior diapire sets up relatively, the scraper subassembly is including being used for scraping the scraper of the unnecessary material that bonds on the disc, the scraper is the alloy pottery spare.
2. The doctor assembly for a pelletizer as claimed in claim 1, wherein the doctor assembly includes a bottom doctor assembly including a bottom doctor for scraping off excess material bonded to the inner bottom wall of the disk, the bottom doctor being an alloyed ceramic piece.
3. The doctor assembly for a pelletizer as set forth in claim 2, wherein said bottom doctor assembly further includes a bottom doctor motor connected to said frame, an output shaft of said bottom doctor motor being connected to said bottom doctor for driving rotation of said bottom doctor.
4. The doctor assembly for a pelletizer as set forth in claim 3, wherein said base doctor includes a plurality of blades, said base doctor assembly further including a base doctor support to which a plurality of said base scrapers are circumferentially connected in spaced relation, said base doctor motor output shaft being connected to said base doctor support.
5. The doctor assembly for a pelletizer as set forth in claim 4, wherein said drag blade support is removably attached to said drag blade.
6. The blade assembly for a pelletizer according to claim 4, wherein the bottom blade support includes:
an annular frame to which a plurality of said bottom scrapers are circumferentially connected at intervals;
the connecting part is arranged in the frame, and an output shaft of the bottom scraper motor is connected with the connecting part;
a plurality of splice bars, it is a plurality of the splice bar is all located the frame with between the connecting portion, it is a plurality of the splice bar is along circumference spaced apart setting, every the one end of splice bar with connecting portion link to each other and the other end with the frame links to each other.
7. The blade assembly for a pelletizer as set forth in claim 3 wherein said bottom blade assembly further includes a bottom blade attachment base through which said bottom blade motor is connected to said frame.
8. The doctor assembly for a pelletizer as set forth in claim 3, wherein the bottom doctor motor is a variable frequency motor.
9. The blade assembly for a pelletizer according to claim 3, wherein the base blade assembly includes two blades spaced apart from each other, and the rotation trajectory of one of the base blades of the two blade assemblies passes through the center of the disk.
10. A doctor assembly for a pelletizing disk according to claim 1, characterized in that the doctor assembly comprises a side doctor assembly disposed adjacent the inside peripheral wall of the disk, the side doctor assembly comprising a side doctor blade for scraping off excess material adhering to the inside peripheral wall of the disk, the side doctor blade being an alloyed ceramic piece.
11. The doctor assembly for a pelletizer as set forth in claim 10, wherein the side doctor assembly further includes a side doctor motor connected to the frame, an output shaft of the side doctor motor being connected to the side doctor to drive the side doctor for rotation.
12. The blade assembly for a pelletizer according to claim 11 wherein the side blade assembly further includes a side blade attachment base through which the side blade motor is connected to the frame.
13. The doctor assembly for a pelletizer as claimed in claim 11, wherein the side doctor motor is a variable frequency motor.
14. The doctor assembly for a pelletizer as set forth in claim 11, wherein said side doctor includes a plurality of side scrapers, said side doctor assembly further including a side doctor support to which an output shaft of said side doctor motor is connected, said plurality of side scrapers being connected to said side doctor support in spaced relation.
15. The blade assembly for a pelletizing disk of claim 14, wherein the plurality of side blades are divided into a plurality of groups, each group including a plurality of the side blades, the plurality of groups of side blades being spaced apart along the length of the side blade support, the plurality of side blades in each group being spaced apart along the circumference of the side blade support.
16. The blade assembly for a pelletizer according to claim 14, wherein the side blade and the side blade holder are detachably connected.
17. A pelletizing disc, comprising:
the doctor assembly of any one of claims 1-16;
the scraper assembly is connected with the rack and is opposite to the inner bottom wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911282268.8A CN110975752A (en) | 2019-12-13 | 2019-12-13 | Scraper component for disc pelletizer and disc pelletizer with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911282268.8A CN110975752A (en) | 2019-12-13 | 2019-12-13 | Scraper component for disc pelletizer and disc pelletizer with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110975752A true CN110975752A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911282268.8A Pending CN110975752A (en) | 2019-12-13 | 2019-12-13 | Scraper component for disc pelletizer and disc pelletizer with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110975752A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114393679A (en) * | 2022-01-27 | 2022-04-26 | 郑旭东 | Automatic processing equipment for ceramic glaze scraping |
| WO2023235951A1 (en) * | 2022-06-09 | 2023-12-14 | Vale S.A. | Device for pelletizing materials |
-
2019
- 2019-12-13 CN CN201911282268.8A patent/CN110975752A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114393679A (en) * | 2022-01-27 | 2022-04-26 | 郑旭东 | Automatic processing equipment for ceramic glaze scraping |
| CN114393679B (en) * | 2022-01-27 | 2024-02-13 | 郑旭东 | Automatic processing equipment for ceramic glaze scraping |
| WO2023235951A1 (en) * | 2022-06-09 | 2023-12-14 | Vale S.A. | Device for pelletizing materials |
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