CN220537877U - Large-sized cylindrical pelletizer for improving quality of chrome ore pellets - Google Patents
Large-sized cylindrical pelletizer for improving quality of chrome ore pellets Download PDFInfo
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- CN220537877U CN220537877U CN202321526259.0U CN202321526259U CN220537877U CN 220537877 U CN220537877 U CN 220537877U CN 202321526259 U CN202321526259 U CN 202321526259U CN 220537877 U CN220537877 U CN 220537877U
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- shell
- connecting strip
- strip
- chrome ore
- quality
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- 239000008188 pellet Substances 0.000 title claims abstract description 37
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model belongs to the field of cylindrical pelletizers, and relates to a large-sized cylindrical pelletizer for improving the quality of chrome ore pellets. Is beneficial to improving the quality of the chrome ore pellets. The technical proposal comprises a roller. Wherein, the cylinder includes: shell, inside lining and connecting strip. A tubular structure with two ends of the shell open. The inner lining is fixed with the inner side wall of the shell, and a plurality of inner linings are connected end to end in sequence to form a tubular structure. The connecting strips are of strip-shaped structures, a plurality of connecting strips are axially fixed on the side surface of the lining facing the inside of the shell along the shell, and a plurality of connecting strips are uniformly distributed in the shell.
Description
Technical Field
The utility model belongs to the field of cylindrical pelletizers, and relates to a large-sized cylindrical pelletizer for improving the quality of chrome ore pellets.
Background
The cylindrical pelletizer is a circular cylinder with two ends open and a discharge end provided with a metal structure inclined at a certain angle, the inner wall of the cylinder is stuck with a rubber lining, and the cylinder rotates around the center line of the cylinder. Pelletizing materials such as chrome ore filter cakes (chrome ore filter cakes, dust removal ash and bentonite) are mixed by a mixer (water distribution of the mixer) and then fed from a feeding end (high-position end) of a cylinder, the materials move forwards in the cylinder in a spiral mode, are discharged at a discharging end (low-position end), pass through a roller sieve and a roller crusher, and are crushed by the roller crusher to obtain raw pellets smaller than 7mm and raw pellets larger than 20mm, and the raw pellets mixed in the mixer enter the pelletizer together, so that the recycling is repeated. The pelletizing fine grinding material forms a mother ball (ball core) under the action of capillary force of water molecules, the mother ball continuously rolls, the mother ball continuously sticks to the new material to grow along with the continuous addition of new material, 1-2 m in the cylinder reaches the maximum size, the raw balls continuously roll and collide with each other in the spiral motion in the cylinder for the rest time, the external force meeting the strength requirement of the raw balls is obtained, the fine particles in the raw balls are closely arranged, the capillary force is increased, the raw balls obtain enough strength, and the qualified raw balls enter a steel belt roasting furnace for roasting. When the rubber lining adhesive of the cylinder moves to the top of the cylinder, the rubber is downwards tensioned, so that the adhesive naturally drops off.
The cylindrical pelletizer has the advantages, but compared with a large proportion of low-chromium-iron ratio low-production intermediate materials with poor sphericity and chromium concentrate (UG), the cylindrical pelletizer still has the problems of difficult control of cyclic load, large raw pellet strength less than 1.5kg proportion, small raw pellet adhesion, uneven raw pellet granularity and the like, so that the air permeability of pellets entering a furnace is poor, the roasting temperature is low, the proportion of unqualified pellets is increased, the strength of finished pellets is low, the rate of finished pellet powder is high and the like, and the yield and quality of the roasted pellets are influenced.
Among these, the quality factors affecting the chromium ore pellets may be: the rubber lining of the large cylindrical pelletizer cannot fully lift the mother pellets to the upper part of the barrel, resulting in low green strength.
In addition, there is the condition that the barrel discharge gate can only extend to screen cloth part position department, and the condition that the green ball gathers together when probably discharging the green ball to roller type shale shaker, probably causes the green ball to fail to fully roll table on the screen cloth, and then causes the condition emergence that green ball intensity is low.
Disclosure of Invention
In order to overcome the defects in the related art, the utility model provides a large-sized cylindrical pelletizer for improving the quality of chrome ore pellets, which is beneficial to improving the quality of the chrome ore pellets.
In order to achieve the technical purpose, the utility model provides the large-sized cylindrical pelletizer for improving the quality of chrome ore pellets. The large cylindrical pelletizer for improving the quality of the chrome ore pellets comprises a roller. Wherein, the cylinder includes: shell, inside lining and connecting strip. A tubular structure with two ends of the shell open. The inner lining is fixed with the inner side wall of the shell, and a plurality of inner linings are connected end to end in sequence to form a tubular structure. The connecting strips are of strip-shaped structures, a plurality of connecting strips are axially fixed on the side surface of the lining facing the inside of the shell along the shell, and a plurality of connecting strips are uniformly distributed in the shell.
Preferably, the length of the connecting strip is the same as the distance of the shell in the axial direction of the shell, the width of the connecting strip is 250-350 mm, and the thickness of the connecting strip is 3-10 mm.
Preferably, at least one connecting strip is provided on each liner. Wherein, on the connecting strip on the lining central line or the connecting strip nearest to the central line of the lining in the at least one connecting strip, a fixing strip is also arranged, and the fixing strip is configured to fix the connecting strip and the lining with the shell.
Preferably, the liner comprises rubber and is a flexible structure with square sides. The connecting strip comprises rubber, and the cross section of the connecting strip in the direction perpendicular to the extending direction of the connecting strip is square.
Preferably, the fixing strip comprises stainless steel, and a plurality of first through holes are further formed in the fixing strip. The shell is provided with a second through hole corresponding to the first through holes, a screw is movably arranged in each first through hole, and the screw sequentially penetrates through the fixing strip, the connecting strip and the second through holes and is fastened through a nut.
Preferably, a roller type vibrating screen is arranged on one side of the large cylindrical pelletizer, and the extending direction of the screen mesh of the roller type vibrating screen is perpendicular to the axial direction of the shell. The roller further comprises a spiral discharge port, the spiral discharge port is of a tubular structure with two open ends, the spiral discharge port is communicated with one end of the shell outlet, the spiral discharge port is far away from at least one notch is formed in one end pipe wall of the shell, each notch comprises a first notch side face axially parallel to the shell, and the first notch side face is close to one end of the shell to the spiral side face formed between one end, far away from the shell, of the spiral discharge port. The first notch side face is located right above the screen, the distance between the first notch side face and the axial direction of the shell is greater than or equal to 2/3 of the distance between the screen and the axial direction of the shell.
The utility model has the beneficial effects that:
firstly, the utility model adopts the connecting strip, can provide upward lifting power for the mother balls, so that the mother balls finish the lifting and rolling process in the roller (cylinder), the strength of the green balls can be improved, and the quality of the chrome ore pellets is further improved.
The second, the utility model adopts the spiral discharge port, and the side surface of the first notch can occupy more than 2/3 or 2/3 of the axial distance of the screen in the shell, so that the green pellets can be uniformly discharged onto the screen, the green pellets can roll on the vibrating screen fully, the green pellet strength is improved, and the quality of the chrome pellet is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a block diagram of embodiment 1 of the present utility model;
FIG. 2 is a block diagram of a connecting strip and a fixing strip of the present utility model;
fig. 3 is a structural diagram of embodiment 2 of the present utility model.
Detailed Description
In order to make the above objects, features and advantages of the present utility model more comprehensible, the following description of the embodiments accompanied with the accompanying drawings will be given in detail. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
Example 1
As shown in fig. 1 and 2, a large cylindrical pelletizer for improving the quality of chrome ore pellets includes a drum including: an outer shell 1, an inner liner 2 and a connecting strip 3. The tubular structure of the housing 1 is open at both ends. The inner liner 2 is fixed on the inner side wall of the outer shell 1, and a plurality of inner liners 2 are connected end to end in sequence to form a tubular structure. The connecting strips 3 are of strip-shaped structures, a plurality of connecting strips 3 are axially fixed on the side surface of the lining facing the inside of the shell 1 along the shell 1, and a plurality of connecting strips 3 are uniformly distributed in the shell 1.
Preferably, the length of the connecting strip 3 is the same as the distance of the housing 1 in its axial direction. The width of the connecting strip 3 is 250-350 mm, and the thickness of the connecting strip 3 is 3-10 mm.
Preferably, at least one connecting strip 3 is provided on each liner; wherein the at least one connecting strip 3 is located on the connecting strip 3 on the central line of the lining or on the connecting strip 3 closest to the central line of the lining, and is further provided with a fixing strip configured to fix the connecting strip 3 and the lining with the outer shell 1.
Preferably, the liner comprises rubber and is a flexible structure with square sides. The connecting strip 3 comprises rubber, and the cross section of the connecting strip 3 in the direction perpendicular to the extending direction thereof is square.
Preferably, the fixing strip comprises stainless steel, and a plurality of first through holes are further formed in the fixing strip. The shell 1 is provided with a second through hole corresponding to the first through holes, a screw is movably arranged in each first through hole, and the screw sequentially penetrates through the fixing strip, the connecting strip 3 and the second through holes and is fastened through a nut.
In some examples, the inner liners 2 may be a rubber flexible film, the whole is in a square structure, eight inner liners 2 may be arranged in the outer shell 1, the side edges of the eight inner liners 2 are connected end to end in sequence, one connecting strip 3 is arranged in the middle of each inner liner 2, the width of the connecting strip 3 may be 250mm, 300mm or 350mm, and the thickness of the connecting strip 3 may be 3mm, 5mm or 10mm. The width of the connecting strip 3 can be the distance between the connecting strip 3 and the side surface of the liner 2, which is perpendicular to the axial direction of the shell 1; the thickness of the connecting strip 3 may be the distance between the side of the connecting strip 3 that is to be fitted to the inner liner 2 and the other side that is parallel.
Each connecting strip 3 is provided with a fixing strip on the side remote from the inner liner 2, which may be a strip-shaped stainless steel plate. Be provided with a plurality of first through-holes on the fixed strip, a plurality of first through-holes are arranged in proper order, still are provided with the second through-hole on the shell 1 that every first through-hole corresponds, and the bolt is through running through first through-hole and second through-hole with fixed strip, connecting strip 3, inside lining 2 and shell 1 fastening.
When the ball mill is operated, the ball mill rolls in the space formed by the inner liners 2, and as materials are added into the inner liners 2, the ball mill is pushed to the middle position of the roller or the upper position of the middle part by the inner liners 2 and the connecting strips 3, and the ball mill adheres to the materials and rolls down along with the ball mill, so that the ball mill is repeatedly formed into green balls. The internal strength of the green pellets can be improved by fully rolling in the roller, which is beneficial to improving the integral quality of the chrome ore pellets.
Example 2
As shown in fig. 3, in this embodiment, on the basis of embodiment 1, the roller of the large cylindrical pelletizer for improving quality of chrome ore pellets further includes a spiral discharge port, the spiral discharge port is a tubular structure with two open ends, the spiral discharge port is communicated with one end of the outlet of the housing 1, and at least one notch 4 is disposed on a pipe wall of one end of the spiral discharge port, which is far away from the housing 1, each notch 4 includes a first notch side 41 axially parallel to the housing 1, and a spiral side 42 formed between one end of the first notch side 41, which is close to the housing 1, and one end of the spiral discharge port, which is far away from the housing 1;
the first notch side surface 41 is located right above the screen, and the distance between the first notch side surface 41 and the housing 1 in the axial direction is greater than or equal to 2/3 of the distance between the screen and the housing 1 in the axial direction.
In some examples, a roller type vibrating screen is arranged on one side of the large cylindrical pelletizer, and the screen mesh extending direction of the roller type vibrating screen is perpendicular to the axial direction of the shell 1.
One end pipe wall of the spiral discharge port, which is far away from the shell 1, is provided with a notch 4 or two notches 4. The shape of the corresponding notch 4 in the side wall of the screw outlet, the unfolded plan view may be triangular, wherein the shorter side of the triangle corresponds to the first notch side 41.
In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a improve large-scale drum balling machine of chrome ore pellet quality, includes the cylinder, its characterized in that, the cylinder includes:
a shell, a tubular structure with two open ends,
the inner liners are fixed with the inner side wall of the shell, and a plurality of the inner liners are connected end to end in sequence to form a tubular structure;
the connecting strips are of strip-shaped structures, a plurality of connecting strips are axially fixed on the side surface, facing the inside of the shell, of the lining along the shell, and the connecting strips are uniformly distributed in the shell.
2. The large cylindrical pelletizer for improving the quality of chrome ore pellets according to claim 1, wherein the length of the connecting strip is the same as the distance of the outer shell in the axial direction thereof;
the width of the connecting strip is 250-350 mm, and the thickness of the connecting strip is 3-10 mm.
3. The large cylindrical pelletizer for improving the quality of chrome ore pellets according to claim 1, wherein at least one connecting strip is arranged on each lining;
wherein, on the connecting strip on the lining central line or the connecting strip nearest to the central line of the lining in the at least one connecting strip, a fixing strip is also arranged, and the fixing strip is configured to fix the connecting strip and the lining with the shell.
4. The large cylindrical pelletizer for improving the quality of chrome ore pellets according to claim 1 wherein the liner comprises rubber and the liner is a square sided flexible structure;
the connecting strip comprises rubber, and the cross section of the connecting strip in the direction perpendicular to the extending direction of the connecting strip is square.
5. A large cylindrical pelletizer for improving the quality of chrome ore pellets according to claim 3 wherein the fixing strip comprises stainless steel and a plurality of first through holes are further formed in the fixing strip;
the shell is provided with a second through hole corresponding to the first through holes, a screw is movably arranged in each first through hole, and the screw sequentially penetrates through the fixing strip, the connecting strip and the second through holes and is fastened through a nut.
6. The large-sized cylindrical pelletizer for improving the quality of chrome ore pellets according to claim 1, wherein a roller type vibrating screen is arranged on one side of the large-sized cylindrical pelletizer, and the extending direction of a screen mesh of the roller type vibrating screen is perpendicular to the axial direction of the shell;
the roller further comprises a spiral discharge hole, the spiral discharge hole is of a tubular structure with two open ends, the spiral discharge hole is communicated with one end of the shell outlet, at least one notch is formed in the pipe wall of one end of the spiral discharge hole far away from the shell, each notch comprises a first notch side face axially parallel to the shell, and a spiral side face is formed between one end, close to the shell, of the first notch side face and one end, far away from the shell, of the spiral discharge hole;
the first notch side face is located right above the screen, the distance between the first notch side face and the axial direction of the shell is greater than or equal to 2/3 of the distance between the screen and the axial direction of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321526259.0U CN220537877U (en) | 2023-06-15 | 2023-06-15 | Large-sized cylindrical pelletizer for improving quality of chrome ore pellets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321526259.0U CN220537877U (en) | 2023-06-15 | 2023-06-15 | Large-sized cylindrical pelletizer for improving quality of chrome ore pellets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220537877U true CN220537877U (en) | 2024-02-27 |
Family
ID=89961530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321526259.0U Active CN220537877U (en) | 2023-06-15 | 2023-06-15 | Large-sized cylindrical pelletizer for improving quality of chrome ore pellets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220537877U (en) |
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2023
- 2023-06-15 CN CN202321526259.0U patent/CN220537877U/en active Active
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