CN212607079U - Anti-blocking raw coal bunker - Google Patents
Anti-blocking raw coal bunker Download PDFInfo
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- CN212607079U CN212607079U CN202021320364.5U CN202021320364U CN212607079U CN 212607079 U CN212607079 U CN 212607079U CN 202021320364 U CN202021320364 U CN 202021320364U CN 212607079 U CN212607079 U CN 212607079U
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Abstract
The utility model discloses an anti-blocking raw coal bunker, which comprises a coal storage bunker body, a lower bunker body and a suspension mechanism; the coal storage bin body comprises a first bin section and a second bin section which are connected with each other; the inner wall of the first bin section is vertical, and the upper end of the first bin section is formed into a first feeding hole; the inner wall of the second bin section inclines towards the inside of the coal storage bin body, and the lower end of the second bin section forms a first discharge hole; the lower coal bin body is of a funnel-shaped structure, the upper end of the lower coal bin body is formed into a second feeding hole, the lower end of the lower coal bin body is formed into a second discharging hole, and the second discharging hole is used for being connected to a coal feeder; the suspension mechanism is connected with the coal storage bin body and used for suspending the coal storage bin body above the lower coal storage bin body, and the first discharge hole is opposite to the second feed hole. The utility model provides a prevent stifled raw coal storehouse adopts the bin body structure of sectional type, has avoided raw coal storehouse emergence fluffy coal, has hung coal, the problem of jam effectively.
Description
Technical Field
The utility model belongs to the technical field of raw coal conveyor, especially, relate to a prevent stifled raw coal storehouse.
Background
In the production links in the industries of electric power, building materials, energy, chemical industry and the like, a raw coal bunker is required to convey coal to a coal feeder. Most coal bunker structures are the infundibulate at present, and the upper shed feeding, the lower mouthful of ejection of compact, and material top-down leans on the dead weight whereabouts, at the operation in-process, because coming coal quality unstable, still mix under some circumstances and burn peat, especially rainy day, during material humidity, viscidity grow, mobility is worse, and the coal is hung just often to the raw coal bunker, fluffy coal, jam scheduling problem, seriously influences follow-up equipment safe operation. Moreover, after the problems of coal hanging, coal fluffing, blockage and the like occur, the coal bunker is dredged, so that the production cost is increased, and the production efficiency is reduced.
Fig. 1 shows a conventional raw coal bunker 1 having a funnel-shaped structure, in which coal shuttles downward by its own weight through an upper square bunker section 2 and a lower hyperbolic bunker section 3 without depending on an external force, and finally enters a coal feeder 4. Four forces are generated by the coal during shuttling: the gravity of coal is downward, the downward pressure of coal in a square bin section at the upper part of a raw coal bin is downward, the reaction force of coal pressing on the inner wall of a hyperbolic bin section is generated, and the friction force of coal and the bin wall is generated. In the downward shuttling process, the more the coal is downward in the hyperbolic bin section, the greater the shuttle reaction force and friction force are, so that the coal close to the bin wall is in a stagnant flow state, the longer the stagnant flow time is, the more easily the stagnant coal is compacted, the greater the static friction force between the coal and between the coal and the bin wall is, and finally the stagnant flow is fixed and adheres to the wall to root, and the problems of coal fluffing, coal hanging and blocking are caused because the rooted coal is continuously increased and thickened.
The problem of how to effectively reduce the blockage of the raw coal bunker is a problem which is always sought to be solved in the industry.
SUMMERY OF THE UTILITY MODEL
In view of the deficiencies in the prior art, the utility model provides a prevent stifled raw coal storehouse to solve current raw coal storehouse and often take place string coal, fluffy coal, block up the scheduling problem.
In order to solve the problems, the utility model provides an anti-blocking raw coal bunker, which comprises a coal storage bunker body, a lower coal bunker body and a suspension mechanism; wherein the content of the first and second substances,
the coal storage bin body comprises a first bin section and a second bin section which are connected with each other; the inner wall of the first bin section is vertical, and the upper end of the first bin section is formed into a first feeding hole; the inner wall of the second bin section inclines towards the inside of the coal storage bin body, and the lower end of the second bin section forms a first discharge hole;
the lower coal bin body is of a funnel-shaped structure, the upper end of the lower coal bin body is formed into a second feeding hole, the lower end of the lower coal bin body is formed into a second discharging hole, and the second discharging hole is used for being connected to a coal feeder;
the suspension mechanism is connected with the coal storage bin body and used for suspending the coal storage bin body above the lower coal storage bin body, and the first discharge hole is opposite to the second feed hole.
In a preferred scheme, the first end of the suspension mechanism is fixedly connected to the outer wall of the coal storage bin body, and the second end of the suspension mechanism is fixedly connected to the outer wall of the lower coal storage bin body; the interior of suspension mechanism forms the enclosure space, first discharge gate with the second feed inlet all is located in the enclosure space.
In a preferred scheme, the first end of the suspension mechanism is fixedly connected to the outer wall of the second bin section of the coal storage bin body.
In a preferred scheme, the first discharge hole extends into the second feed hole and is contained in the second feed hole.
In a preferred scheme, the first bin section is of a straight prism-shaped structure or a cylindrical structure, and the second bin section is of a conical structure.
In a preferred scheme, the second bin section is of a hyperbolic conical structure.
In a preferable scheme, the included angle between the inner wall of the second bin section and the vertical direction is in the range of 37-42 degrees; in the axial direction of the coal storage bin body, the length range of the second bin section is 6.5-9 m.
In a preferred scheme, the lower coal bin body is of a conical structure.
In a preferred scheme, the upper part of the lower coal bunker body is of a funnel-shaped structure; in the side wall between the second discharge ports from the middle upper part to the lower part of the lower coal bunker body, the side wall on one side is of an upright cylindrical structure, and the side walls on the other part are of a curved structure, so that the second discharge ports with special-shaped structures are formed.
In a preferred scheme, a rapping mechanism is arranged on the outer wall of the lower coal bunker body; when the second discharge port is connected to the coal feeder, a damping mechanism is arranged at the connection position of the second discharge port and the coal feeder.
The embodiment of the utility model provides a prevent stifled raw coal storehouse adopts the storehouse body of sectional type, and the coal storage storehouse body on upper portion suspends in midair in the lower coal storehouse body top of lower part through hanging in midair the mechanism, can shorten the length of the lower part hyperbola (or slope form) storehouse section of the coal storage storehouse body from this, avoids the coal to be detained for a long time in this part storehouse section, reduces the frictional force between coal and the bulkhead, has avoided raw coal storehouse to take place fluffy coal, hang the coal, the problem of jam effectively.
Drawings
FIG. 1 is a schematic diagram of a prior art raw coal bunker;
fig. 2 is a schematic structural diagram of the anti-blocking raw coal bunker provided by the embodiment of the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be described with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the invention shown in the drawings and described in accordance with the same are merely exemplary and the invention is not limited to these embodiments.
It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and/or process steps that are closely related to the solution according to the invention are shown in the drawings, while other details that are not relevant to the invention are omitted.
Fig. 2 is a schematic structural diagram of an anti-blocking raw coal bunker of an embodiment of the present invention. As shown in fig. 2, the anti-blocking raw coal bunker comprises a coal storage bunker body 10, a coal discharging bunker body 20 and a suspension mechanism 30.
Wherein, the coal storage bin body 10 comprises a first bin section 11 and a second bin section 12 which are connected with each other. The inner wall of the first bin section 11 is vertical, and the upper end of the first bin section is formed into a first feeding hole 13. The inner wall of the second bin section 12 is inclined towards the inside of the coal storage bin body 10, and the lower end of the second bin section is formed into a first discharge hole 14.
The lower coal bin body 20 is of a funnel-shaped structure, the upper end of the lower coal bin body is formed into a second feeding hole 21, the lower end of the lower coal bin body is formed into a second discharging hole 22, and the second discharging hole 22 is used for being connected to a coal feeder 40.
The suspension mechanism 30 is connected to the coal storage bin body 10, and is configured to suspend the coal storage bin body 10 above the lower coal bin body 20, and make the first discharge hole 14 face the second feed hole 21.
For a conventional integrated raw coal bunker, the upper part of the bunker body is usually large, and the discharge hole is relatively small due to the limitation of the feed inlet of the coal feeder, so that the conventional integrated raw coal bunker shown in fig. 1 needs a large length as the lower hyperbolic bunker section 3 for transition from the upper square bunker section 2 to the discharge hole. The installation and arrangement positions of each raw coal bin are different, the overall size specifications of the raw coal bins are also different, the length (height along the axial direction of the bin body) of the hyperbolic bin section 3 of the conventional integrated raw coal bin is about 8-12 m, and the overlong length of the bin body is the main reason for overlarge friction force between coal and the bin wall. If the hyperbolic bin section 3 is cut off directly, this results in a large discharge opening that cannot be matched to the coal feeder.
The embodiment of the utility model provides a prevent stifled raw coal storehouse, like the structure shown in fig. 2, adopt the storehouse body of sectional type, the coal storage storehouse body 10 on upper portion suspends in midair in the lower coal storehouse body 20 top of lower part through suspending mechanism 30 in midair, can shorten the length of the second storehouse section 12 of the slope form of the coal storage storehouse body 10 on upper portion from this, and the lower coal storehouse body 20 of lower part can match each other with coal feeder 40 well again. Referring to fig. 1 and 2, if the hyperbola bunker section 3 of the existing integrated raw coal bunker is used as the reference, the utility model provides a length of the second bunker section 12 in the anti-blocking raw coal bunker can shorten the proportional range of 1/6-1/5 for the hyperbola bunker section 3. For example, the shortening proportionality coefficient is 1/5, if the length of the hyperbolic curve bunker section 3 of the existing integrated raw coal bunker is 8m, and under the condition that other dimensions of the bunker body are the same, the length of the second bunker section 12 in the anti-blocking raw coal bunker provided by the utility model can be shortened to 6.4 m; if the length of the hyperbola bunghole 3 of the former bunker of current integral type is 12m, under the same condition of other dimensions in the storehouse body, the utility model provides a prevent that the length of second bunghole 12 in the former bunker of stifled can shorten to 9.6 m.
Because the length of the inclined second bin section 12 of the upper coal storage bin body 10 is shortened, the flow time of coal on the inclined bin wall can be shortened, the friction force between the coal and the bin wall is smaller, and the probability that the coal adheres to the wall and grows roots due to the stagnant flow in the upper coal storage bin body 10 is greatly reduced. On the other hand, compared with the existing coal bunker shown in fig. 1, under the condition that the inclination angles of the inclined inner walls are the same, the length of the second bunker section 12 is shortened, the area of the first discharge hole 14 can be increased, the coal flow in the upper coal storage bunker body 10 is facilitated, and the possibility that the coal adheres to the wall and grows roots due to the fact that the coal flows in the upper coal storage bunker body 10 are not moved is further reduced. After the coal flows from the coal storage bin body 10 to the lower coal bin body 20, the length of the lower coal bin body 20 is smaller, so that the probability that the coal is adhered to the wall and rooted due to the static flow in the lower coal bin body 20 at the lower part is also very low. It is more comprehensive, the embodiment of the utility model provides an prevent stifled raw coal storehouse has adopted the storehouse body of sectional type, can greatly reduce the coal at the flow in-process and the internal wall of storehouse between the frictional force, avoided the coal bunker to take place fluffy coal, hang the coal, the problem of jam effectively.
In a preferred embodiment, the first end 31 of the suspension mechanism 30 is fixedly connected to the outer wall of the coal storage bin body 10, and the second end 32 is fixedly connected to the outer wall of the lower coal storage bin body 20, so that the coal storage bin body 10 is suspended above the lower coal storage bin body 20 under the supporting force of the suspension mechanism 30. As shown in fig. 2, in the present embodiment, the first end 31 of the suspension mechanism 30 is fixedly connected to the outer wall of the second bin section 12 of the coal storage bin body 10, a closed space 33 is formed inside the suspension mechanism 30, and both the first discharge port 14 and the second feed port 21 are located in the closed space 33. Because the coal storage bin body 10 is suspended above the lower coal bin body 20, a gap is formed between the first discharge hole 14 and the second discharge hole 21, and when coal falls into the lower coal bin body 20 from the coal storage bin body 10, dust can be generated and drifted out from the gap, so that the inner part of the suspension mechanism 30 is formed into a closed space 33 and surrounds the gap between the first discharge hole 14 and the second discharge hole 21, and the pollution to the working environment caused by the dust scattered to the outer part of the raw coal bin can be prevented.
In the present embodiment, referring to fig. 2, the first discharging port 14 extends into the second feeding port 21 and is accommodated in the second feeding port 21, that is, in the height direction of the raw coal bunker, the position of the lower edge of the first discharging port 14 is lower than the position of the upper edge of the second feeding port 21, so that the coal can be prevented from falling to the outside of the bunker when falling from the bunker body 10 to the bunker body 20.
In a preferred scheme, the first bin section 11 of the coal storage bin body 10 is of a right prism structure or a cylindrical structure, and the second bin section 12 is of a conical structure. It should be noted that the right prism-shaped structure is understood to be a hollow cuboid or a cube with an open upper part and a hollow lower part, the cylindrical-shaped structure is understood to be a hollow cylinder with an open upper part and a hollow lower part, and the conical-shaped structure is understood to be a hollow circular truncated cone with an open upper part and a hollow lower part or a structure similar to the circular truncated cone. In a more preferred embodiment, the second chamber section 12 has a hyperbolic conical structure.
In a preferred scheme, in order to enable coal to flow better in the coal storage bin body 10, as shown in fig. 2, the included angle alpha between the inner wall of the second bin section 12 and the vertical direction is in the range of 37-42 degrees; in the axial direction of the coal storage silo body 10, the length range of the second silo section 12 is 6.5 m-9 m.
In the preferred embodiment, the lower cartridge body 20 is a conical structure. It should be noted that the conical structure is understood to be a hollow circular truncated cone with an open upper part and an open lower part or a structure similar to the circular truncated cone.
More preferably, in the present embodiment, the lower coal silo body 20 has a special-shaped structure. The method comprises the following steps: as shown in fig. 2, the upper feed inlet of the lower silo body 20 is funnel-shaped, gradually changes to a special-shaped structure from the middle upper part to the lower second discharge outlet 22, one side wall of the lower silo body from the middle upper part to the lower part is a vertical cylindrical structure (e.g., a straight-line silo wall on the right side in the cross-sectional view shown in fig. 2), the part of the side wall is perpendicular to the coal feeder 40, and the rest part of the side wall is a curved structure (e.g., a curved silo wall on the left side in the cross-sectional view shown in fig. 2), thereby forming the lower silo body 20 with the special-shaped. Under the prerequisite that the same feeder feed inlet is unchangeable, the export area of abnormal shape discharge gate promotes about 30% than current circular discharge gate area, and simultaneously, lower bunker body 20 has a bulkhead still perpendicular to feeder, and the unloading is more smooth and easy.
In a more preferred embodiment, the sidewall of the vertical cylindrical structure from the middle upper portion to the lower portion is disposed near the driving end of the coal feeder 40, that is, in the lower coal bin body 20 of the profile structure, the sidewall of the vertical cylindrical structure is closer to the driving end of the coal feeder 40 than the sidewall of the curved structure. For example, in fig. 2, the drive end of the coal feeder 40 is disposed on the right side of the coal feeder 40, and when the profiled lower silo body 20 is assembled, the side walls of the upright cylindrical structure are on the opposite right side, while the side walls of the curved structure are on the opposite right side.
In this embodiment, as shown in fig. 2, a rapping mechanism 50 is disposed on the outer wall of the lower silo body 20. The rapping mechanism 50 can be, for example, a micro-type continuous rapper, and under the vibration action of the rapper, the coal in the lower coal bunker body 20 can be more smoothly input into the lower coal feeder 40. Further, as shown in fig. 2, when the second discharge port 22 of the lower coal silo body 20 is connected to the coal feeder 40, a damping mechanism 60 is disposed at the connection between the second discharge port 22 and the coal feeder 40, so that the vibration force of the lower coal silo body 20 can be prevented from being transmitted to the lower coal feeder 40 and being adversely affected.
To sum up, the embodiment of the utility model provides a prevent stifled raw coal storehouse adopts the storehouse body of sectional type, and the coal storage storehouse body on upper portion suspends in midair in the lower coal storehouse body top of lower part through suspending in midair the mechanism, can shorten the length of the lower part hyperbola (or slope form) storehouse section of the coal storage storehouse body from this, avoids the coal to be detained for a long time in this part storehouse section, reduces the frictional force between coal and the bulkhead, has avoided the raw coal storehouse to take place fluffy coal, hang the coal, the problem of jam effectively.
The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (10)
1. An anti-blocking raw coal bunker is characterized by comprising a coal storage bunker body, a lower coal bunker body and a suspension mechanism; wherein the content of the first and second substances,
the coal storage bin body comprises a first bin section and a second bin section which are connected with each other; the inner wall of the first bin section is vertical, and the upper end of the first bin section is formed into a first feeding hole; the inner wall of the second bin section inclines towards the inside of the coal storage bin body, and the lower end of the second bin section forms a first discharge hole;
the lower coal bin body is of a funnel-shaped structure, the upper end of the lower coal bin body is formed into a second feeding hole, the lower end of the lower coal bin body is formed into a second discharging hole, and the second discharging hole is used for being connected to a coal feeder;
the suspension mechanism is connected with the coal storage bin body and used for suspending the coal storage bin body above the lower coal storage bin body, and the first discharge hole is opposite to the second feed hole.
2. The anti-clogging raw coal bunker of claim 1, wherein a first end of said suspension mechanism is fixedly connected to the outer wall of said coal bunker body, and a second end is fixedly connected to the outer wall of said lower coal bunker body; the interior of suspension mechanism forms the enclosure space, first discharge gate with the second feed inlet all is located in the enclosure space.
3. The anti-blocking raw coal bunker of claim 2, wherein the first end of the suspension mechanism is fixedly connected to the outer wall of the second bunker section of the coal bunker body.
4. The anti-blocking raw coal bunker of claim 2, wherein the first discharge hole extends into the second feed hole and is contained in the second feed hole.
5. The anti-clogging raw coal bunker of claim 1, wherein the first bunker section is of a right prism structure or a cylindrical structure, and the second bunker section is of a conical structure.
6. The anti-clogging raw coal bunker of claim 5, wherein the second bunker section is a hyperbolic conical structure.
7. The anti-blocking raw coal bin according to claim 5, wherein the included angle between the inner wall of the second bin section and the vertical direction is in the range of 37 degrees to 42 degrees; in the axial direction of the coal storage bin body, the length range of the second bin section is 6.5-9 m.
8. The anti-clogging raw coal bunker of claim 5, wherein the lower coal bunker body is of a conical configuration.
9. The anti-blocking raw coal bunker of claim 5, wherein the upper portion of the lower coal bunker body is of a funnel-shaped structure; in the side wall between the second discharge ports from the middle upper part to the lower part of the lower coal bunker body, the side wall on one side is of an upright cylindrical structure, and the side walls on the other part are of a curved structure, so that the second discharge ports with special-shaped structures are formed.
10. The anti-blocking raw coal bunker according to any one of claims 1 to 9, wherein a rapping mechanism is arranged on the outer wall of the lower coal bunker body; when the second discharge port is connected to the coal feeder, a damping mechanism is arranged at the connection position of the second discharge port and the coal feeder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021320364.5U CN212607079U (en) | 2020-07-07 | 2020-07-07 | Anti-blocking raw coal bunker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021320364.5U CN212607079U (en) | 2020-07-07 | 2020-07-07 | Anti-blocking raw coal bunker |
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| CN212607079U true CN212607079U (en) | 2021-02-26 |
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| CN202021320364.5U Active CN212607079U (en) | 2020-07-07 | 2020-07-07 | Anti-blocking raw coal bunker |
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