CN215087886U - Material blocking device of material blocking ring of vertical roller mill - Google Patents
Material blocking device of material blocking ring of vertical roller mill Download PDFInfo
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- CN215087886U CN215087886U CN202121188561.0U CN202121188561U CN215087886U CN 215087886 U CN215087886 U CN 215087886U CN 202121188561 U CN202121188561 U CN 202121188561U CN 215087886 U CN215087886 U CN 215087886U
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- material blocking
- horizontal baffle
- blocking ring
- track groove
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Abstract
The utility model discloses a dam device of vertical roller mill material blocking ring, the dam device is installed in the track groove on the upper part of the material blocking ring, the dam device can slide along the track groove, the height of the material blocking ring is 1/3-1/2 of the height of the traditional material blocking ring; the track groove is an inverted T-shaped track groove, and the material blocking device is composed of a plurality of material blocking units with the same structure; each material blocking unit comprises a horizontal baffle, a vertical baffle and an adjusting device, the horizontal baffle is fixed above the material blocking ring through the adjusting device and can be adjusted in height up and down, the adjusting device can drive the horizontal baffle to slide along the track groove, the horizontal baffle and the vertical baffle are perpendicular to each other and fixedly arranged, and the vertical baffle is arranged perpendicular to the direction of the grinding disc and clings to the inner side wall of the material blocking ring. The utility model discloses a dam device can reduce the grinding district material and cross the grinding phenomenon, makes the material cycle number of times reduce in the mill simultaneously, improves grinding efficiency, reduces grinding roller outside end face and keeps off the material ring clearance.
Description
Technical Field
The utility model relates to a vertical roller mill technical field especially relates to a dam device that vertical roller mill kept off material circle.
Background
The vertical roller mill is a material bed grinding device widely used at present, integrates crushing, drying, grinding and grading conveying, and has the main advantages of high grinding efficiency and low production energy consumption.
The raw materials pass through feeding device and get into vertical roller mill, the material is along with the rotation of mill from the center to the marginal movement, receive the extrusion of grinding roller downward direction simultaneously and by breakage and grinding, the material after smashing is taken up by the hot-blast that gets into the wind ring at mill edge, bring the selection powder machine together and select separately, the middlings after selecting separately returns mill center unloading awl, mix together with new feed, carry out the secondary grinding simultaneously, qualified farine gets into collection device as the finished product and collects, the part is difficult for the large granule material of grinding can not be taken up by hot-blast in wind ring department, get into external circulation system through telling the cinder notch.
The shape of the grinding roller, the inclination angle of the grinding disc and the material blocking ring are the key points influencing the formation of a stable material layer and the grinding efficiency of the vertical roller mill. Especially, keep off the material circle, for the material that makes follow the mill and rotate together is unlikely to quick outflow mill, is broken and is ground by the grinding roller at the in-process that flows simultaneously, when vertical roller mill design, can design the fender material circle of take the altitude, plays the purpose that blocks the raw materials and flow to make the material can be in the inboard root gathering that keeps off the material circle, cause grinding roller compaction material, thereby make the mill run steadily.
Meanwhile, during the actual operation of the vertical roller mill, the distance between the end face of the outer side of the grinding roller and the material blocking ring plays a certain role in the stable operation of the mill, if the gap is too large, the material ground by the grinding roller can rapidly escape from the gap, and is simultaneously brought into the powder selecting machine by air for separation, so that a material layer in a grinding area cannot be stably formed, the mill is unstable, and the vibration is large.
At present, the design that keeps off the material circle is the riser of perpendicular to mill for can keep off the material circle root and form thicker bed of material, bed of material distribution state is as shown in figure 1, upwards observes from the bed of material bottom that forms: the particle distribution state of the material is gradually changed from small particles and compactness to large particles and looseness. The existence of the material blocking ring can lead the grinding machine to operate under the working condition of a thicker material layer, so that the grinding efficiency is reduced, and meanwhile, the phenomenon of over-grinding of the material can also occur, so that the power consumption of grinding is higher, the performance of the capacity of the grinding machine is influenced, and the characteristic of high-efficiency grinding of the vertical roller mill is not utilized. If the raw materials contain a certain amount of simple substance iron, the simple substance iron can be always circulated in the mill and cannot be discharged out of the mill in time, so that the service life of the grinding equipment is seriously shortened, and the production and maintenance cost is high.
Disclosure of Invention
The utility model discloses a solve the problem that prior art exists, provide a structural design is reasonable, installation convenient to use, can reduce and grind the material and cross the grinding phenomenon and make simultaneously that the material circulates the number of times and reduces in the mill, improve grinding efficiency, reduce the vertical roller mill material retaining ring's of grinding roller outside terminal surface and material retaining ring clearance dam device.
The utility model discloses a what realize like this, a vertical roller mill keeps off dam device of material circle, the dam device is installed in the track groove on keeping off the material circle upper portion, makes the dam device can slide along the track groove, the height that keeps off the material circle is 1/3 ~ 1/2 of traditional keeping off material circle height; the track groove is an inverted T-shaped track groove, and the material blocking device is composed of a plurality of material blocking units with the same structure; every keep off the material unit and include horizontal baffle, vertical baffle and adjusting device, horizontal baffle passes through adjusting device to be fixed in keeping off material circle top, height-adjusting from top to bottom, adjusting device can drive horizontal baffle and slide along the rail groove, both mutually perpendicular fixed settings of horizontal baffle and vertical baffle, vertical baffle perpendicular to mill direction is arranged, and is hugged closely and keeps off the material circle inside wall.
Preferably, the adjusting device is composed of a guide bolt, a fastening nut and a fastening bolt, the head of the guide bolt is arranged in the track groove, so that the guide bolt can move along the track groove, the horizontal baffle plate is provided with an unthreaded hole and a threaded hole which are arranged along the track groove, the rod part of the guide bolt penetrates through the unthreaded hole of the horizontal baffle plate and is in threaded connection with the fastening nut, the fastening bolt is in threaded connection with the horizontal baffle plate, and the rod end of the fastening bolt penetrates through the threaded hole of the horizontal baffle plate and is abutted against the bottom of the track groove. Make through guide bolt and keep off the material unit and remove, through fastening nut's pushing down and fastening bolt's upwards top, fix and adjust horizontal baffle, and then adjust and keep off the position and the height of material unit for can piece together the stock stop device of different shapes above keeping off the material ring, the appearance of indirect regulation fender material ring to this operation operating mode that adapts to the different materials of vertical roller mill grinding realizes the high-efficient operation of mill under the most suitable state.
Further preferably, the rail groove is provided with a notch for placing the head of the guide bolt in the rail groove.
Further preferably, the horizontal baffle is provided with two unthreaded holes and two threaded holes, and the two unthreaded holes and the two threaded holes are arranged along the track groove.
Preferably, the thickness of the vertical baffle is controlled to be 30-60 mm from the distance between the vertical baffle and the large end of the grinding roller, the thickness of the vertical baffle is adjusted, and the gap between the end face of the outer side of the grinding roller and the material blocking ring is adjusted, so that the stable operation of the grinding machine is ensured.
Preferably, the height from the bottom of the vertical baffle to the grinding disc lining plate is 50% -100% of the height of the material stop ring.
The utility model has the advantages of it is following and beneficial effect:
(1) the utility model discloses an adjusting device adjusts the position and the height that keep off the material unit, makes it can piece together out different combined shape above keeping off the material circle, and then changes the shape that keeps off the material circle to this adapts to the operating condition of the different materials of vertical roller mill grinding, realizes the high-efficient operation of mill under the most suitable state.
(2) The utility model discloses an adjustment keeps off the height and the position of material unit, changes the velocity of flow and dwell time of material on the mill, guarantees new feed on the mill, the best grain gradation of semi-manufactured goods and finished product material, makes the material not only can form stable bed of material, and can make the material grind the back quick by the grinding roller and play to select separately to the selection powder machine by the wind band, reduces grinding phenomenon, improves grinding efficiency, and system's output can improve about 10%, and the grinding power consumption reduction range reaches more than 5%.
(3) The utility model discloses a select suitable vertical baffle thickness, indirect regulation grinding roller outside end face and the clearance that keeps off the material circle make the grinding district material can form stable bed of material, push down at higher roller relatively, guarantee the mill steady operation, improve grinding efficiency, reduce the grinding power consumption.
(4) The utility model discloses still have structural design reasonable, simple structure is feasible, dismantles and adjusts the convenience to make and maintain low cost, have advantages such as huge economic benefits.
Drawings
FIG. 1 is a distribution state diagram of a material layer formed at the root of a material stop ring by a material;
fig. 2 is a schematic view of the distribution position of the material blocking device on the upper part of the material blocking ring according to the embodiment of the present invention;
fig. 3 is a schematic structural view of a material blocking unit provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a horizontal baffle and a vertical baffle provided in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a guide bolt joint provided in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a fastening bolt joint according to an embodiment of the present invention.
In the figure: 1. a material blocking ring; 2. a track groove; 3. a material blocking unit; 31. a horizontal baffle; 311. a light hole; 312. a threaded hole; 32. a vertical baffle; 33. a guide bolt; 34. fastening a nut; 35. fastening a bolt; 4. and (6) opening.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 2-6, an embodiment of the utility model provides a dam device of a dam ring of a vertical roller mill, the dam device is installed in the track groove 2 on the upper part of the dam ring 1, so that the dam device can slide along the track groove 2, and the height of the dam ring 1 is 1/3-1/2 of the height of the traditional dam ring; the track groove 2 is an inverted T-shaped track groove, the material blocking device is composed of a plurality of material blocking units 3 with the same structure, and the plurality of material blocking units 3 are uniformly distributed on the upper part of the material blocking ring 1; every keep off material unit 3 and include horizontal baffle 31, perpendicular baffle 32 and adjusting device, horizontal baffle 31 passes through adjusting device to be fixed in keeping off material ring 1 top, height-adjusting from top to bottom, adjusting device can drive horizontal baffle 31 and slide along track groove 2, horizontal baffle 31 and perpendicular baffle 32 both mutually perpendicular are fixed to be set up, perpendicular baffle 32 perpendicular to mill direction is arranged, and is hugged closely and keeps off material ring 1 inside wall.
The adjusting device is composed of a guide bolt 33, a fastening nut 34 and a fastening bolt 35, the head of the guide bolt 33 is arranged in the track groove 2, so that the guide bolt 33 can move along the track groove 2, and the track groove 2 is provided with a notch 4 for arranging the head of the guide bolt 33 in the track groove 2. Two unthreaded holes 311 and two threaded holes 312 arranged along the track groove 2 are formed in the horizontal baffle plate 31, and the two unthreaded holes 311 and the two threaded holes 312 are arranged along the track groove 2, in the embodiment, the two unthreaded holes 311 are located on two sides of the horizontal baffle plate 31, and the two threaded holes 312 are located in the middle of the horizontal baffle plate 31. The rod part of the guide bolt 33 passes through the unthreaded hole 311 of the horizontal baffle plate 31 and is in threaded connection with the fastening nut 34, the fastening bolt 35 is in threaded connection with the horizontal baffle plate 31, and the rod end of the fastening bolt 35 passes through the threaded hole 312 of the horizontal baffle plate 31 and is abutted against the bottom of the track groove 2. Can make through guide bolt 33 and correspond and keep off material unit 3 and remove, through fastening nut 34 pushing down and fastening bolt 35 upwards push up, fix and adjust horizontal baffle 31, and then adjust each and keep off the position and the height of material unit 3, make and to piece up the stock stop device of different shapes above keeping off material circle 1, the whole appearance that keeps off the material circle of indirect regulation, thereby adapt to the operation operating mode of the different materials of vertical roller mill grinding, realize the high-efficient operation of mill under the most suitable state.
Preferably, the thickness of the vertical baffle 32 is such that the distance between the vertical baffle 32 and the large end of the grinding roller is controlled within 30-60 mm, and the gap between the end surface of the outer side of the grinding roller and the material blocking ring 1 can be indirectly adjusted by selecting the appropriate thickness of the vertical baffle 32, so as to ensure the stable operation of the mill.
Preferably, the distance between the bottom of the vertical baffle 32 and the grinding disc lining plate is 50% -100% of the height of the material blocking ring 1, so that ground materials can be discharged in time, and the grinding efficiency is improved.
The installation process of the material blocking device is as follows:
(1) firstly, installing each guide bolt 33 in the track groove 2 through the gap 4;
(2) sleeving the horizontal baffle plate 31 on the guide bolt 33 through the unthreaded hole 311, screwing the fastening nut 34 on the guide bolt 33, screwing the fastening bolt 35 into the threaded hole 312 of the horizontal baffle plate 31, and adjusting the position and height of each material blocking unit 3 on the material blocking ring 1 as required;
(3) and screwing and fixing each material blocking unit 3 with the adjusted position and height to ensure that the grinding machine is in the optimal operation condition.
To sum up, the utility model discloses a dam device under the prerequisite that the mill can even running, can exert the high-efficient grinding effect of vertical roller mill as far as, make through the quick mill that leaves of the finished product or semi-manufactured goods that grind, get into the selection powder machine and select separately, reduce the cycle number of times of material in the mill, improve grinding efficiency.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is also possible to modify the solutions described in the foregoing embodiments or to substitute some or all of the technical features of the foregoing embodiments with equivalents, without departing from the scope of the embodiments of the present invention.
Claims (6)
1. The material blocking device of the material blocking ring of the vertical roller mill is characterized in that the material blocking device is installed in a track groove in the upper portion of the material blocking ring, so that the material blocking device can slide along the track groove, and the height of the material blocking ring is 1/3-1/2 of the height of the traditional material blocking ring; the track groove is an inverted T-shaped track groove, and the material blocking device is composed of a plurality of material blocking units with the same structure; every keep off the material unit and include horizontal baffle, vertical baffle and adjusting device, horizontal baffle passes through adjusting device to be fixed in keeping off material circle top, height-adjusting from top to bottom, adjusting device can drive horizontal baffle and slide along the rail groove, both mutually perpendicular fixed settings of horizontal baffle and vertical baffle, vertical baffle perpendicular to mill direction is arranged, and is hugged closely and keeps off the material circle inside wall.
2. The material blocking device of the material blocking ring of the vertical roller mill according to claim 1, characterized in that the adjusting device is composed of a guide bolt, a fastening nut and a fastening bolt, the head of the guide bolt is placed in the rail groove, so that the guide bolt can move along the rail groove, the horizontal baffle plate is provided with an unthreaded hole and a threaded hole which are arranged along the rail groove, the rod part of the guide bolt passes through the unthreaded hole of the horizontal baffle plate and is in threaded connection with the fastening nut, the fastening bolt is in threaded connection with the horizontal baffle plate, and the rod end of the fastening bolt passes through the threaded hole of the horizontal baffle plate and abuts against the bottom of the rail groove.
3. The material blocking device of the material blocking ring of the vertical roller mill according to claim 2, characterized in that the rail groove is provided with a notch for placing the head of the guide bolt in the rail groove.
4. The material blocking device of the material blocking ring of the vertical roller mill is characterized in that the horizontal baffle plate is provided with two unthreaded holes and two threaded holes, and the two unthreaded holes and the two threaded holes are arranged along the track groove.
5. The material blocking device of the material blocking ring of the vertical roller mill is characterized in that the thickness of the vertical baffle is controlled to be 30-60 mm from the large end of the grinding roller.
6. The material blocking device of the material blocking ring of the vertical roller mill according to claim 1, wherein the height from the bottom of the vertical baffle to the grinding disc lining plate is 50-100% of the height of the material blocking ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121188561.0U CN215087886U (en) | 2021-05-28 | 2021-05-28 | Material blocking device of material blocking ring of vertical roller mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121188561.0U CN215087886U (en) | 2021-05-28 | 2021-05-28 | Material blocking device of material blocking ring of vertical roller mill |
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| Publication Number | Publication Date |
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| CN215087886U true CN215087886U (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121188561.0U Active CN215087886U (en) | 2021-05-28 | 2021-05-28 | Material blocking device of material blocking ring of vertical roller mill |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114602609A (en) * | 2022-04-02 | 2022-06-10 | 天津水泥工业设计研究院有限公司 | Design method of striker plate for vertical grinding roller |
| CN114643107A (en) * | 2022-04-02 | 2022-06-21 | 天津水泥工业设计研究院有限公司 | Manufacturing method of grinding roller material blocking assembly of vertical roller mill |
| CN114643103A (en) * | 2022-04-02 | 2022-06-21 | 天津水泥工业设计研究院有限公司 | Vertical roller mill material blocking ring adjusting device |
-
2021
- 2021-05-28 CN CN202121188561.0U patent/CN215087886U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114602609A (en) * | 2022-04-02 | 2022-06-10 | 天津水泥工业设计研究院有限公司 | Design method of striker plate for vertical grinding roller |
| CN114643107A (en) * | 2022-04-02 | 2022-06-21 | 天津水泥工业设计研究院有限公司 | Manufacturing method of grinding roller material blocking assembly of vertical roller mill |
| CN114643103A (en) * | 2022-04-02 | 2022-06-21 | 天津水泥工业设计研究院有限公司 | Vertical roller mill material blocking ring adjusting device |
| CN114602609B (en) * | 2022-04-02 | 2023-03-21 | 天津水泥工业设计研究院有限公司 | Design method of striker plate for vertical grinding roller |
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