CN210740447U - Quantitative pulverized coal feeding device - Google Patents
Quantitative pulverized coal feeding device Download PDFInfo
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- CN210740447U CN210740447U CN201921801585.1U CN201921801585U CN210740447U CN 210740447 U CN210740447 U CN 210740447U CN 201921801585 U CN201921801585 U CN 201921801585U CN 210740447 U CN210740447 U CN 210740447U
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- pulverized coal
- metering bin
- metering
- feeding device
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Abstract
The utility model relates to a ration formula buggy feeder, including the buggy storehouse, establish the input on the buggy storehouse top surface, establish the output on the buggy storehouse bottom surface, the measurement storehouse of being connected with the output in buggy storehouse, establish the partition wheel in the measurement storehouse, be used for the drive to separate the drive arrangement of wheel at the measurement storehouse internal rotation, establish the scallop hole on the bottom surface of measurement storehouse and establish being used for controlling opening and the confined pneumatic valve plate of output between the output in buggy storehouse and the measurement storehouse. The pneumatic valve plate comprises a slot arranged at the output end, an inserting plate connected with the slot in a sliding manner, a support and a cylinder arranged on the support, and a piston rod of the cylinder is hinged on the inserting plate. The utility model is used for the dosing in the combustion process has the accurate and stable technological effect of feed.
Description
Technical Field
The utility model belongs to the technical field of the technique of buggy transportation in the cement manufacture and specifically relates to a ration formula buggy feeder is related to.
Background
The coal powder is a dye prepared by grinding coal, impurities in the coal powder are fully removed in the grinding process, the coal powder is fine in granularity, easy to ignite, high in volatility value and low in ash content of fire coal, the combustion rate can be improved, and the dust removal load can be reduced.
The heat supply in the cement production process uses the buggy supply mostly, and current supply equipment is the pipeline transportation mostly, because there is a certain amount of moisture in the buggy, consequently in the transportation part buggy can the adhesion on the inner wall of transportation pipeline to along with the continuous increase of transit time, the internal diameter of transportation pipeline can be more and more littleer, leads to the temperature in the boiler unstable, and the combustion efficiency of buggy is not high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a ration formula buggy feeder, this ration formula buggy feeder can carry out dosing, makes buggy wherein can the abundant burning.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a quantitative pulverized coal feeding device comprising:
the top surface of the pulverized coal bin is provided with an input end, and the bottom surface of the pulverized coal bin is provided with an output end;
the metering bin is connected with the output end of the pulverized coal bin;
the separation wheel is arranged in the metering bin;
the driving device is arranged on the metering bin and used for driving the separating wheel to rotate in the metering bin;
and the fan-shaped hole is arranged on the bottom surface of the metering bin.
By adopting the technical scheme, the pulverized coal in the pulverized coal bin flows into the metering bin under the action of gravity and then flows out of the fan-shaped holes under the pushing of the separating wheel instead of directly flowing into a rear combustion boiler from the pulverized coal bin. Because the volume of the metering bin is fixed, the quantity of the pulverized coal flowing out of the fan-shaped holes at each time is also a fixed value under the pushing of the separating wheel, so that the quantitative feeding can be carried out on the boiler behind, and the instability of feeding caused by the reduction of the diameter of the pipeline is avoided.
The utility model discloses further set up to: the pneumatic valve plate is arranged between the output end of the pulverized coal bin and the metering bin and used for controlling the opening and the closing of the output end.
By adopting the technical scheme, after a certain amount of pulverized coal flows into the metering bin, the pneumatic valve plate is closed, and the pressure of the pulverized coal in the pulverized coal bin is borne by the pneumatic valve plate, so that the problem that the separation wheel is difficult to rotate or cannot rotate at all when the pressure is too large can be solved.
The utility model discloses further set up to: the pneumatic valve plate comprises a slot arranged at the output end, a plug board connected with the slot in a sliding manner, a bracket and a cylinder arranged on the bracket;
and a piston rod of the air cylinder is hinged on the inserting plate.
Through adopting above-mentioned technical scheme, the cylinder pulling picture peg is reciprocal in the slot and is slided, realizes opening and closing of buggy storehouse output end department. The cylinder uses compressed air as a power source, open fire is not generated in the driving mode, air in leakage is directly discharged into the atmosphere, and safety is higher.
The utility model discloses further set up to: the divider wheel includes:
the rotating shaft is vertically arranged in the metering bin, two ends of the rotating shaft are respectively and rotatably connected with the bottom surface and the top surface of the metering bin, and one end of the rotating shaft extends out of the top surface of the metering bin;
and the fan blades are arranged on the rotating shaft and surround the axis of the rotating shaft to be uniformly arranged on the outer wall of the rotating shaft.
By adopting the technical scheme, the included angles of the adjacent fan blades are the same, so that the coal powder which does not rotate a certain angle and can be equivalent is pushed out from the metering bin in the rotating process of the metering bin, and the quantitative feeding is realized.
The utility model discloses further set up to: one end of the fan blade, which is far away from the bottom surface of the metering bin, inclines to the direction opposite to the movement direction of the fan blade.
By adopting the technical scheme, the resistance of the fan blades in the rotating process can be reduced, so that the fan blades can smoothly rotate in the metering bin.
The utility model discloses further set up to: the included angle between the fan blades and the bottom surface of the metering bin is 80-85 degrees.
Through adopting above-mentioned technical scheme, restricted the inclination of flabellum, can enough avoid when the inclination angle degree is too big the resistance that the flabellum rotated the in-process and received is on the large side, can avoid the cavity to appear in the flabellum both sides when the angle is too big again, leads to appearing the circumstances that the feed is not enough.
The utility model discloses further set up to: a gap is formed between the fan blade and the top surface of the metering bin;
the top surface inboard in measurement storehouse is equipped with a plurality of scrapers, and is a plurality of the scraper blade centers on the axis in measurement storehouse is in the top surface inboard in measurement storehouse evenly sets up.
By adopting the technical scheme, the scraper can intercept the pulverized coal positioned in the space above the fan blades and uniformly push the pulverized coal to the space between two adjacent fan blades at the rear part, so that the feeding amount of each time is kept as consistent as possible.
The utility model discloses further set up to: in a direction parallel to the axis of the metering bin, a gap exists between the scraper and the fan blades.
Through adopting above-mentioned technical scheme, can avoid the flabellum to be blocked when rotating scraper blade below.
To sum up, the utility model discloses a beneficial technological effect does:
1. during the production process, the pulverized coal in the pulverized coal bin flows into the metering bin under the action of gravity and then flows out of the fan-shaped holes under the pushing action of the separating wheel instead of directly flowing into a rear combustion boiler from the pulverized coal bin. Because the volume of the metering bin is fixed, the quantity of the pulverized coal flowing out of the fan-shaped holes at each time is also a fixed value under the pushing of the separating wheel, so that the quantitative feeding can be carried out on the boiler behind, and the instability of feeding caused by the reduction of the diameter of the pipeline is avoided.
2. The inner wall of the top surface of the metering bin is provided with the scraper, and the scraper can block coal powder above the fan blades and evenly distribute the coal powder between subsequent adjacent fan blades, so that the feeding amount can fluctuate within a determined range every time, and the accuracy of single feeding is further improved.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a schematic perspective view of another viewing angle according to an embodiment of the present invention.
Fig. 3 is another schematic perspective view of the embodiment of the present invention, in which the measuring chamber is cut to show its internal structure.
In the figure, 11, a pulverized coal bunker, 111, an input end, 112, an output end, 12, a metering bunker, 13, a pneumatic valve plate, 14, a separating wheel, 15, a driving device, 16, a fan-shaped hole, 131, a slot, 132, a plug board, 133, a bracket, 134, an air cylinder, 141, a rotating shaft, 142, a fan blade, 21 and a scraper blade.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the embodiment of the present invention discloses a quantitative pulverized coal feeding device, which mainly comprises pulverized coal bunker 11, metering bunker 12, separating wheel 14 and driving device 15, an input end 111 is disposed on the top surface of pulverized coal bunker 11, an output end 112 is disposed on the bottom surface, the pulverized coal after grinding flows into pulverized coal bunker 11 from input end 11, and flows out from output end 112 during feeding. The output end 112 of the metering bin 12 and the pulverized coal bin 11 flow out, and the volume of the metering bin and the pulverized coal bin is far smaller than that of the pulverized coal bin. The divider wheel 14 is located within the dosing chamber 12 and is capable of being rotated by a drive means 15. The divider wheel 14 can divide the internal space of the measuring bin 12 into a plurality of equal-volume parts, and during the rotation process, the pulverized coal of each part sequentially flows out of the fan-shaped holes 16 on the bottom surface of the measuring bin 12, so that the quantitative feeding is realized.
The utility model discloses an embodiment, pneumatic valve plate 13 has been increased between output 112 and the measurement storehouse 12 of buggy storehouse 11, opening and closing of buggy storehouse 11 output 112 can be controlled to pneumatic valve plate 13, in the course of the work like this, buggy in the buggy storehouse 11 can be quantitative flows in to measurement storehouse 12, when not flowing, the weight of buggy is undertaken by pneumatic valve plate 13 in the buggy storehouse 11, can reduce the pressure that separates wheel 14 and receive in the measurement storehouse 12 like this, reduce its resistance in the rotation in-process.
The utility model discloses an embodiment, pneumatic valve plate 13 mainly comprises picture peg 132, support 133 and cylinder 134 etc. and cylinder 134 fixed mounting has seted up a slot 131 in support 133, the output 112 department of buggy storehouse 11, has put a picture peg 132 in the slot 131, and the piston rod of cylinder 134 articulates on picture peg 132. When the air cylinder 134 is actuated, the inserting plate 132 can be pulled to slide back and forth in the inserting groove 131.
Referring to fig. 3, in an embodiment of the present invention, the separating wheel 14 is composed of a rotating shaft 141 and fan blades 142, etc., wherein the rotating shaft 141 is vertically disposed in the measuring chamber 12, both ends of the rotating shaft 141 are rotatably connected to the top surface and the bottom surface of the measuring chamber 12, respectively, and the upper end of the rotating shaft 141 is connected to the driving device 15 after extending out from the top surface of the measuring chamber 12. The fan blades 142 are fixed on the rotating shaft 141, and the number of the fan blades is multiple, and the fan blades are uniformly arranged on the side wall of the rotating shaft 141 around the axis of the rotating shaft 141 to divide the space in the metering bin 12 into multiple parts with equal volume.
In another embodiment, the driving device 15 is composed of a motor and a speed reducer, the speed reducer is fixedly mounted on the measuring bin 12 by bolts, the output end of the motor is connected to the input end of the speed reducer, and the output end of the speed reducer is connected to the end of the rotating shaft 141 extending out of the measuring bin 12.
In an embodiment of the present invention, the fan blades 142 are inclined relative to the bottom surface of the measuring chamber 12, and the specific inclination mode is: the end of the fan 142 away from the bottom of the dosing chamber 12 is inclined in a direction opposite to its direction of movement, which reduces the resistance of the fan 142 during rotation. In another embodiment, the angle between the fan blades 142 and the bottom of the measuring bin 12 is 80-85 °, and the main function of the angle limitation is to prevent a closed space without pulverized coal from being formed between the fan blades and the bottom of the measuring bin 12, so that the feeding amount of the time is lower than the set feeding amount.
Meanwhile, in order to further reduce the resistance of the fan blades 142 in the rotation process, in another embodiment, in the metering bin 12, the height of the fan blades 142 in the vertical direction is lower than that of the metering bin 12, so that friction between the fan blades and the metering bin 12 is avoided, and at this time, in order to avoid burying the fan blades 142 with the pulverized coal in the metering bin 12 and cause single feeding to exceed a set amount, in yet another embodiment, a plurality of scrapers 21 are arranged on the inner side of the top surface of the metering bin 12, and the plurality of scrapers 21 are uniformly arranged on the inner side of the top surface of the metering bin 12 around the axis of the metering bin 12, so that when the fan blades 142 push the pulverized coal in front of the fan blades to move, the scrapers 21 intercept the pulverized coal above the fan blades and. The scraper 21 thus makes it possible to feed as uniformly as possible each time, further improving the accuracy of the feeding.
In order to avoid the fan blades 142 from being stuck when passing under the scraper 21, in an embodiment of the present invention, a gap is added between the scraper 21 and the fan blades 142 in a direction parallel to the axis of the measuring chamber 12, that is, in a vertical direction, the sum of the heights of the scraper 21 and the fan blades 142 is smaller than the distance between the inner side of the top surface and the inner side of the bottom surface of the measuring chamber 12.
The implementation principle of the embodiment is as follows:
sufficient coal powder is stored in the coal powder bin 11, during feeding, the air cylinder 134 pulls the inserting plate 132 to enable the inserting plate to move towards the direction close to the air cylinder 134, at the moment, the coal powder bin 11 is communicated with the metering bin 12, and the coal powder in the coal powder bin 11 flows into the metering bin 12 under the action of gravity.
At this time, the driving device 15 starts to drive the rotating shaft 141 to rotate at the same time, the rotating shaft 141 drives the fan blades 142 to rotate along with the rotating shaft 141, the fan blades 142 push the pulverized coal in front of the fan blades to rotate in the rotating process, and when the pulverized coal is pushed to the fan-shaped holes 16, the pulverized coal falls from the holes.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. A quantitative pulverized coal feeding device, characterized by comprising:
the top surface of the coal powder bin (11) is provided with an input end (111), and the bottom surface is provided with an output end (112);
the metering bin (12) is connected with the output end (112) of the pulverized coal bin (11);
a divider wheel (14) disposed within the dosing bin (12);
the driving device (15) is arranged on the metering bin (12) and is used for driving the separation wheel (14) to rotate in the metering bin (12);
the fan-shaped hole (16) is arranged on the bottom surface of the metering bin (12).
2. A quantitative pulverized coal feeding device according to claim 1, characterized in that: the coal powder metering device is characterized by further comprising a pneumatic valve plate (13) which is arranged between the output end (112) of the coal powder bin (11) and the metering bin (12) and used for controlling the opening and closing of the output end (112).
3. A quantitative pulverized coal feeding device according to claim 2, characterized in that: the pneumatic valve plate (13) comprises a slot (131) arranged at the output end (112), an inserting plate (132) connected with the slot (131) in a sliding manner, a bracket (133) and a cylinder (134) arranged on the bracket (133);
the piston rod of the air cylinder (134) is hinged on the inserting plate (132).
4. A dosing pulverized coal feeding device according to claim 1, characterized in that the divider wheel (14) comprises:
the rotating shaft (141) is vertically arranged in the metering bin (12), two ends of the rotating shaft are respectively and rotatably connected with the bottom surface and the top surface of the metering bin (12), and one end of the rotating shaft extends out of the top surface of the metering bin (12);
the fan blades (142) are arranged on the rotating shaft (141), and are uniformly arranged on the outer wall of the rotating shaft (141) around the axis of the rotating shaft (141).
5. A quantitative pulverized coal feeding device according to claim 4, characterized in that: one end of the fan blade (142) far away from the bottom surface of the metering bin (12) inclines to the direction opposite to the moving direction of the fan blade.
6. A quantitative pulverized coal feeding device according to claim 5, characterized in that: the included angle between the fan blade (142) and the bottom surface of the metering bin (12) is 80-85 degrees.
7. A quantitative pulverized coal feeding device according to any of claims 4-6, characterized in that: a gap is reserved between the fan blade (142) and the top surface of the metering bin (12);
the inner side of the top surface of the metering bin (12) is provided with a plurality of scraping plates (21), and the scraping plates (21) surround the axis of the metering bin (12) and are uniformly arranged on the inner side of the top surface of the metering bin (12).
8. A quantitative pulverized coal feeding device according to claim 7, characterized in that: in the direction parallel to the axis of the metering bin (12), a gap exists between the scraper (21) and the fan blade (142).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921801585.1U CN210740447U (en) | 2019-10-24 | 2019-10-24 | Quantitative pulverized coal feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921801585.1U CN210740447U (en) | 2019-10-24 | 2019-10-24 | Quantitative pulverized coal feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210740447U true CN210740447U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921801585.1U Active CN210740447U (en) | 2019-10-24 | 2019-10-24 | Quantitative pulverized coal feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210740447U (en) |
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2019
- 2019-10-24 CN CN201921801585.1U patent/CN210740447U/en active Active
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