CN210162808U - Pulverized coal tower - Google Patents
Pulverized coal tower Download PDFInfo
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- CN210162808U CN210162808U CN201821783667.3U CN201821783667U CN210162808U CN 210162808 U CN210162808 U CN 210162808U CN 201821783667 U CN201821783667 U CN 201821783667U CN 210162808 U CN210162808 U CN 210162808U
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- helical blade
- pulverized coal
- side helical
- barrel
- coal tower
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Abstract
The utility model relates to a boiler field, especially a pulverized coal tower. The utility model discloses in, the axis of rotation is equipped with at least a pair of left side helical blade and the right side helical blade that has gapped opposite direction outward, the barrel with left side helical blade left end the position that the right side helical blade right-hand member corresponds is equipped with the feed inlet respectively, the barrel be equipped with left side helical blade with the discharge gate that clearance position corresponds between the right side helical blade. The length ratio of barrel and axis of rotation is short, and on the other hand left side helical blade and right side helical blade's delivery stroke is short, and motor load is low, and left side helical blade and right side helical blade receive the counter-force opposite, and the power that the axis of rotation received is main internal force, and feeder life-span is guaranteed.
Description
Technical Field
The utility model relates to a boiler field, especially a pulverized coal tower.
Background
The energy structure of China still mainly uses coal, and in most of small and medium-sized industrial pulverized coal boilers, the storage form of pulverized coal is in a cylindrical tower structure; the physical fluidity of the coal dust is easy to present large-span change due to various objective factors, so that the field technical processing difficulty of the coal dust in three major links of unloading, feeding and metering is very high, the feeding control characteristic of a feeding pipe is poor, the runaway conditions of material breaking, material flushing and the like occur frequently, and the accurate and stable feeding which really meets the process design requirements is almost impossible. Therefore, the development of a stable and efficient pulverized coal feeding device suitable for small and medium-sized industrial pulverized coal boilers is urgently needed by the market.
Referring to fig. 1, chinese utility model patent publication No. CN203099877U discloses a pulverized coal tower device for thoroughly supplying powder, which comprises a pulverized coal bunker 1, a diameter reducing section 2, a pulverized coal conveying hopper 4, a pulverized coal dropping pipe 6, a coal conveying pipe 10, a powder dropping pipe 12 and an air supply pipe 13, all of which are sequentially connected from top to bottom. The upper end of the coal powder conveying hopper 4 is connected to a supporting platform 3; the support platform 3 is supported by a support frame 7. The pulverized coal transporting hopper 4 has a pair of hopper chambers 41, 42 (corresponding to the pulverized coal bunker in this application), and the bottom of each hopper chamber 41, 42 is provided with a trapezoidal groove 19, and the bottom of the trapezoidal groove 19 is provided with a square opening through which the pulverized coal dropping pipe 6 is connected. The trapezoidal groove 19 is internally provided with a pulverized coal stirring screw rod 5. The coal conveying pipe 10 is internally provided with a coal feeding screw rod 9, and the coal feeding screw rod 9 and the pulverized coal stirring screw rod 5 are respectively driven by motors 8 and 15. An opening above the end part of the coal conveying pipe 10 is communicated with the pulverized coal backflushing bag 11, and an opening below the end part of the coal conveying pipe 10 is communicated with the pulverized coal dropping pipe 12; the blast pipe 13 is connected with a fan 14.
The length of the coal conveying pipe (equivalent to a cylinder) and the coal feeding screw rod of the coal powder tower is long, the feeding stroke of the coal feeding screw rod is large, the motor efficiency is low, and the coal feeding screw rod is subjected to counter force opposite to the coal feeding direction for a long time, so that the service life is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pulverized coal tower, the pay-off stroke is short, efficient.
For reaching the advantage, the utility model provides a pulverized coal tower, including buggy storehouse and buggy feeder, including the barrel, hold the axis of rotation in the barrel, the axis of rotation is equipped with at least a pair of left side helical blade and the right side helical blade that has gapped opposite direction outward, the barrel with the left side helical blade left end the position that the right side helical blade right-hand member corresponds is equipped with the feed inlet respectively, the barrel be equipped with left side helical blade with the discharge gate that clearance position corresponds between the helical blade of right side, each the feed inlet is connected with a buggy storehouse respectively.
In an embodiment of the present invention, the barrel is provided with an access opening corresponding to the gap between the left helical blade and the right helical blade.
In an embodiment of the pulverized coal tower of the present invention, the access opening is detachably connected to an access cover.
In an embodiment of the present invention, the pulverized coal feeding device further includes a motor for driving the rotation shaft to rotate.
In an embodiment of the pulverized coal tower of the present invention, the motor is a servo motor or a stepping motor.
In an embodiment of the pulverized coal tower of the present invention, the feed inlet and/or the discharge outlet is connected with a connecting pipe, and the connecting pipe faces away from the end of the barrel body and is provided with a connecting flange.
In an embodiment of the present invention, the rotating shaft is provided with a plurality of pairs of left helical blades and right helical blades with gaps in opposite directions.
In an embodiment of the present invention, the rotating shaft is rotatably connected to the two ends of the cylinder through bearings.
In an embodiment of the present invention, the left helical blade and the right helical blade are made of stainless steel.
The utility model discloses in, the axis of rotation is equipped with at least a pair of left side helical blade and the right side helical blade that has gapped opposite direction outward, the barrel with left side helical blade left end the position that the right side helical blade right-hand member corresponds is equipped with the feed inlet respectively, the barrel be equipped with left side helical blade with the discharge gate that clearance position corresponds between the right side helical blade. The length ratio of barrel and axis of rotation is short, and on the other hand left side helical blade and right side helical blade's delivery stroke is short, and motor load is low, and left side helical blade and right side helical blade receive the counter-force opposite, and the power that the axis of rotation received is main internal force, and feeder life-span is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a conventional pulverized coal tower.
Fig. 2 is a schematic structural diagram of a pulverized coal feeding device according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a pulverized coal feeding device according to a second embodiment of the present invention.
Fig. 4 is a schematic structural view of pulverized coal according to a first embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description will be given with reference to the accompanying drawings and preferred embodiments in order to provide the best mode, structure, features and effects according to the present invention.
Please refer to fig. 2, the utility model discloses buggy feeder of first embodiment, including barrel 3, hold axis of rotation 4 in barrel 3, axis of rotation 4 is equipped with at least a pair of left side helical blade 5 and the right side helical blade 7 that have gapped opposite direction outward, and barrel 3 is equipped with feed inlet 2 respectively with the position that 5 left ends of left side helical blade, 7 right-hand members of right side helical blade correspond, 8, and barrel 3 is equipped with the discharge gate 8 that corresponds with clearance position between left side helical blade 5 and the right side helical blade 7.
The barrel 3 is provided with an access opening 6 corresponding to the gap position between the left helical blade 5 and the right helical blade 7.
The access opening 6 is detachably connected with an access cover 61. The pulverized coal feeding apparatus further includes a motor 1 for driving the rotation shaft 4 to rotate. The motor 1 is a servo motor or a stepping motor.
The feed openings 2,8 and/or the discharge opening 8 are connected with a connecting pipe 9, and the end of the connecting pipe 9 facing away from the cylinder 3 is provided with a connecting flange 91.
The rotating shaft 4 is rotatably connected with two ends of the cylinder 3 through bearings.
The left helical blade 5 and the right helical blade 7 are made of stainless steel. In order to ensure longer service life of the feeding device, the left helical blade 5 and the right helical blade 7 are made of wear-resistant, rust-resistant and pressure-resistant materials.
After the motor 1 is started to adjust the set powder feeding amount, pulverized coal falls into the feeding hole 2, is respectively conveyed to the middle part under the pushing of the left helical blade 5 and the right helical blade 7, and is finally conveyed out through the discharging hole 8, so that stable feeding is realized.
Referring to fig. 3, the pulverized coal feeding device according to the second embodiment of the present invention has a plurality of pairs of left helical blades 5 and right helical blades 7 with gaps and opposite directions outside the rotating shaft 4.
Referring to fig. 4, each feed inlet of the pulverized coal tower according to the first embodiment of the present invention is connected to a pulverized coal bunker 10.
The utility model discloses in, the axis of rotation is equipped with at least a pair of left side helical blade and the right side helical blade that has gapped opposite direction outward, the barrel with left side helical blade left end the position that the right side helical blade right-hand member corresponds is equipped with the feed inlet respectively, the barrel be equipped with left side helical blade with the discharge gate that clearance position corresponds between the right side helical blade. The length ratio of barrel and axis of rotation is short, and on the other hand left side helical blade and right side helical blade's delivery stroke is short, and motor load is low, and left side helical blade and right side helical blade receive the counter-force opposite, and the power that the axis of rotation received is main internal force, and feeder life-span is guaranteed.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person can make modifications or changes equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are within the scope of the present invention.
Claims (9)
1. The utility model provides a pulverized coal tower, includes buggy storehouse and buggy feeder, includes the barrel, holds the axis of rotation in the barrel, its characterized in that, the axis of rotation is equipped with at least a pair of left side helical blade and the right side helical blade that have gapped opposite direction outward, the barrel with left side helical blade left end the position that the right side helical blade right-hand member corresponds is equipped with the feed inlet respectively, the barrel be equipped with left side helical blade with the discharge gate that clearance position corresponds between the helical blade of right side, each the feed inlet is connected with a buggy storehouse respectively.
2. The pulverized coal tower as claimed in claim 1, wherein the barrel is provided with an access opening corresponding to the position of the gap between the left helical blade and the right helical blade.
3. The pulverized coal tower as claimed in claim 2, wherein the access opening is detachably connected with an access cover.
4. The pulverized coal tower as claimed in claim 1, wherein the pulverized coal feeding device further comprises a motor for driving the rotation shaft to rotate.
5. The pulverized coal tower as claimed in claim 4, wherein the motor is a servo motor or a stepping motor.
6. The pulverized coal tower as claimed in claim 1, wherein the feed inlet and/or the discharge outlet is/are connected with a connecting pipe, and the end of the connecting pipe facing away from the cylinder body is provided with a connecting flange.
7. The pulverized coal tower according to claim 1, wherein the rotating shaft is externally provided with a plurality of pairs of left helical blades and right helical blades which have gaps and are opposite in direction, and the left helical blades and the right helical blades are made of wear-resistant, rust-resistant and pressure-resistant materials.
8. The pulverized coal tower as claimed in any one of claims 1 to 7, wherein the rotating shaft is rotatably connected with both ends of the barrel through bearings.
9. The pulverized coal tower according to any one of claims 1 to 7, wherein the left-side helical blade and the right-side helical blade are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821783667.3U CN210162808U (en) | 2018-10-31 | 2018-10-31 | Pulverized coal tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821783667.3U CN210162808U (en) | 2018-10-31 | 2018-10-31 | Pulverized coal tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210162808U true CN210162808U (en) | 2020-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821783667.3U Active CN210162808U (en) | 2018-10-31 | 2018-10-31 | Pulverized coal tower |
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| Country | Link |
|---|---|
| CN (1) | CN210162808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109502374A (en) * | 2018-10-31 | 2019-03-22 | 浙江世野节能环保科技有限公司 | A kind of coal dust tower |
-
2018
- 2018-10-31 CN CN201821783667.3U patent/CN210162808U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109502374A (en) * | 2018-10-31 | 2019-03-22 | 浙江世野节能环保科技有限公司 | A kind of coal dust tower |
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