CN210774832U - Coal fired power plant feeder raw coal sampling device - Google Patents
Coal fired power plant feeder raw coal sampling device Download PDFInfo
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- CN210774832U CN210774832U CN201921546324.XU CN201921546324U CN210774832U CN 210774832 U CN210774832 U CN 210774832U CN 201921546324 U CN201921546324 U CN 201921546324U CN 210774832 U CN210774832 U CN 210774832U
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- coal
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- screw rod
- sampling device
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Abstract
The utility model discloses a coal fired power plant feeder raw coal sampling device, which relates to the field of coal taking devices, and comprises a coal dropping pipe and a sampling pipe arranged on one side of the coal dropping pipe, wherein the sampling pipe is communicated with the inner cavity of the coal dropping pipe, a coal outlet is arranged below the sampling pipe, and a sampling device is arranged in the sampling pipe; sampling device includes screw rod, helical blade and drive arrangement, helical blade installs on the screw rod surface, drive arrangement sets up on the sampling tube top, in screw rod one end runs through the sampling tube and extends to the coal breakage pipe, the screw rod other end is connected to drive arrangement. The utility model discloses the device is through setting up sampling device in the sampling tube, rotates through the screw rod among the sampling device, utilizes the spiral to promote the principle and draws the coal sample, accomplishes the coal sampling, adopts the hob to promote the sample, has certain grinding ability, and the difficult jam of raw coal sampling tube. Meanwhile, the screw rod well isolates a path of direct injection of raw coal, the sampling process of the raw coal is convenient and clean, and splashing can not be caused.
Description
Technical Field
The utility model relates to a get coal device field, concretely relates to coal fired power plant feeder raw coal sampling device.
Background
The coal combustion is utilized to generate electricity in a thermal power plant, so that the performance of pulverized coal is a conventional supervision project, a coal sample is required to be adopted for timing monitoring, when a boiler thermal efficiency test and a coal mill related performance test are carried out in a coal power plant, raw coal sampling is an important link, and accurate sampling can be carried out to provide real coal quality data for subsequent performance index calculation. The current raw coal sampling positions mainly comprise a coal feeding belt and a coal feeder for taking coal. The optimal coal taking position is used for sampling at a coal falling hopper of a coal feeder. In the prior art, raw coal sampling operation is carried out on a coal hopper, most of the raw coal sampling operation is carried out by adopting an iron pipe welded on the coal hopper, and an outlet is only blocked by a cap or a plug. When needing to carry out the raw coal sample, open the end cap and let the raw coal splash get the coal operation, raw coal splash in the sample process, the shutoff is not tight, and the iron pipe is easy simultaneously because the big raw coal of granule gets into, causes the pipeline to block up.
SUMMERY OF THE UTILITY MODEL
This practicality is for solving the problem of following among the prior art: when raw coal sampling is carried out in the prior art, raw coal is splashed and blocked loosely, and meanwhile, an iron pipe is easy to cause pipeline blockage due to the fact that raw coal with large particles enters.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
a raw coal sampling device of a coal feeder of a coal-fired power plant comprises a coal dropping pipe and a sampling pipe arranged on one side of the coal dropping pipe, wherein the sampling pipe is communicated with the inner cavity of the coal dropping pipe;
sampling device includes screw rod, helical blade and drive arrangement, helical blade installs on the screw rod surface, drive arrangement sets up on the sampling tube top, in screw rod one end runs through the sampling tube and extends to the coal breakage pipe, the screw rod other end is connected to drive arrangement.
During the sample, start drive arrangement, drive arrangement drives the screw rod and rotates to the helical blade on the drive screw rod rotates, and helical blade when rotating, constantly drives in the coal breakage pipe coal charge and upwards transports to the coal outlet of sampling tube in getting into the sampling tube, and the coal charge drops to the sampling container along the coal outlet, thereby accomplishes whole sample.
The utility model discloses the device is through setting up sampling device in the sampling tube, rotates through the screw rod among the sampling device, utilizes the spiral to promote the principle and draws the coal sample, accomplishes the coal sampling, adopts the hob to promote the sample, has certain grinding ability, and the difficult jam of raw coal sampling tube. Meanwhile, the screw rod well isolates a path of direct injection of raw coal, the sampling process of the raw coal is convenient and clean, and splashing can not be caused.
Further, the sampling tube and the coal dropping tube are detachably connected.
Furthermore, an opening is formed in one side of the coal dropping pipe, a control valve is arranged at the opening, a threaded structure is arranged on the outer wall of the sampling pipe, and the sampling pipe is installed on the control valve in a threaded fit mode.
When taking a sample, can open the opening of the rotary control valve through the switch of the rotary control valve, can open the size of the opening through the control valve, control the sampling speed, can dismantle the sampling tube through the control valve simultaneously.
Further, drive arrangement includes drive case, reduction gear and driving piece, the drive case sets up the sampling tube top, reduction gear and driving piece set up inside the drive case, the screw rod top is run through the drive case and is connected to the reduction gear, the driving piece is connected the reduction gear.
Further, the reduction gear is reduction gear, the driving piece includes hand gear, hand-cranking shaft and hand handle, reduction gear with hand gear meshes mutually, hand gear radius is less than the reduction gear radius, hand shaft one end sets up on the hand gear, hand-cranking shaft one end runs through the drive case is connected to hand handle.
Further, the hand cranking shaft passes through threaded connection and installs extremely on the hand cranking handle be provided with spacing piece between hand cranking handle and the drive box.
The utility model discloses the device adopts hand rocker manpower drive, installs the reduction gear additional and reduces manpower output, and increasing equipment grinds in, places the sampling tube comprehensively and blocks up, uses the hand drive of manpower and does not have the energy resource consumption.
Further, the sampling tube top is equipped with the mounting hole, will through inserting the bolt in the mounting hole the drive case is installed the sampling tube top.
The utility model discloses the device can all adopt between a plurality of parts and can dismantle the connection, can freely dismantle and conveniently carry and maintain, when carrying, reduces device occupation space.
Further, a drill bit is installed at the bottom end of the screw rod
Further, the drill bit is installed on the screw rod through threads.
Further, the drill bit is of a square structure or a conical structure with a downward pointed end.
When the bottom end of the screw is inserted into the coal dropping pipe for sampling, the drill bit is arranged below the screw, and the special structure of the drill bit is beneficial to the screw to be inserted into raw coal for sampling.
The utility model discloses following beneficial effect has:
(1) the utility model discloses the device is through setting up sampling device in the sampling tube, rotates through the screw rod among the sampling device, utilizes the spiral to promote the principle and draws the coal sample, accomplishes the coal sampling, adopts the hob to promote the sample, has certain grinding ability, and the difficult jam of raw coal sampling tube. Meanwhile, the screw rod well isolates a path of direct injection of raw coal, the sampling process of the raw coal is convenient and clean, and splashing can not be caused.
(2) The utility model discloses the device adopts hand rocker manpower drive, installs the reduction gear additional and reduces manpower output, and increasing equipment grinds in, places the sampling tube comprehensively and blocks up, uses the hand drive of manpower and does not have the energy resource consumption.
(3) The utility model discloses the device can all adopt between a plurality of parts and can dismantle the connection, can freely dismantle and conveniently carry and maintain, when carrying, reduces device occupation space.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of the device of the present invention;
FIG. 2 is a schematic structural view of a first embodiment of the sampling device of the present invention;
FIG. 3 is a schematic structural view of a second embodiment of the sampling device of the present invention;
FIG. 4 is a schematic structural view of the control valve of the present invention;
fig. 5 is a schematic view of the structure of the sampling tube of the present invention;
FIG. 6 is a top view of the sampling tube of the present invention;
labeled as: 1-a coal dropping pipe; 11-a control valve; 2-sampling tube; 21-a coal outlet; 22-mounting holes; 3-a sampling device; 31-a screw; 311-a drill bit; 32-helical blades; 33-a drive device; 331-a drive box; 332-a reducer; 333-driving piece; 3331-hand gear; 3332-hand crank shaft; 3333-hand shaking handle; 3334-spacing piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or circuit connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
Example 1
As shown in fig. 1, a raw coal sampling device of a coal feeder of a coal-fired power plant comprises a coal dropping pipe 1 and a sampling pipe 2 arranged on one side of the coal dropping pipe 1, wherein the sampling pipe 2 is communicated with the inner cavity of the coal dropping pipe 1, a coal outlet 21 is arranged below the sampling pipe 2, and a sampling device 3 is arranged in the sampling pipe 2;
the sampling device 3 comprises a screw rod 31, a helical blade 32 and a driving device 33, wherein the helical blade 32 is installed on the surface of the screw rod 31, the driving device 33 is arranged at the top end of the sampling tube 2, one end of the screw rod 31 penetrates through the sampling tube 2 and extends into the coal dropping tube 1, and the other end of the screw rod 31 is connected to the driving device 33.
As shown in FIG. 2, the driving device 33 includes a driving box 331, a decelerator 332 and a driving member 333, the driving box 331 is mounted on the top end of the sampling tube 2, the decelerator 332 and the driving member 333 are disposed inside the driving box 331, the top end of the screw 31 penetrates the driving box 331 to be connected to the decelerator 332, and the driving member 333 is connected to the decelerator 332.
As shown in fig. 2, the speed reducer 332 is a speed reducer, the driving member 333 includes a hand gear 3331, a hand shaft 3332 and a hand handle 3333, the speed reducer is engaged with the hand gear 3331, the radius of the hand gear 3331 is smaller than that of the speed reducer, one end of the hand shaft 3332 is mounted on the hand gear 3331, and one end of the hand shaft 3332 penetrates through the driving box 331 and is connected to the hand handle 3333.
The working principle is as follows: during the sample, start drive arrangement 33, drive arrangement 33 drives screw rod 31 and rotates to drive helical blade 32 on the screw rod 31 and rotate, helical blade 32 when rotating, constantly drive in the coal breakage pipe 1 coal charge and upwards transport to the coal outlet 11 of sampling tube 1 in getting into sampling tube 2, the coal charge drops to the sampling vessel along coal outlet 21 in, thereby accomplishes whole sample.
Specifically, during the operation, raw coal constantly enters into the feeder through coal breakage pipe 1, when needing to take a sample to raw coal this moment, rotate hand 3333, drive hand shaft 3332 and rotate, thereby drive hand gear 3331 and rotate, hand gear 3331 rotates and drives reduction gear synchronous rotation, thereby drive screw 31 rotates, screw 31 rotates back drive spiral 32 blade and rotates, thereby make the raw coal in coal breakage pipe 1 constantly enter into sampling tube 2, drop in the sampling vessel from coal outlet 22, when the sample volume reaches the requirement, stop to rotate manual handle can.
The utility model discloses the device is through setting up sampling device in the sampling tube, rotates through the screw rod among the sampling device, utilizes the spiral to promote the principle and draws the coal sample, accomplishes the coal sampling, adopts the hob to promote the sample, has certain grinding ability, and the difficult jam of raw coal sampling tube. Meanwhile, the screw rod well isolates a path of direct injection of raw coal, the sampling process of the raw coal is convenient and clean, and splashing can not be caused.
Meanwhile, the device is driven by hand of a hand lever, a speed reducer is additionally arranged to reduce the manpower output, the equipment grinding is increased, the sampling tube is placed comprehensively to be blocked, and no energy is consumed by using the manual driving of the manpower.
Example 2
On embodiment 1's basis, as shown in fig. 4, sampling tube 2 and coal breakage pipe 1 can dismantle the connection, and coal breakage pipe 1 one side is equipped with the opening, and the opening part is provided with control valve 11, and sampling tube 2 outer wall is equipped with the helicitic texture, and sampling tube 2 passes through screw-thread fit and installs on control valve 11.
As shown in fig. 2, the hand crank shaft 3332 is screwed to the hand crank handle 3333, and a stopper 3334 is provided between the hand crank handle 3333 and the drive case 331.
As shown in fig. 5 and 6, the top end of the sampling tube 2 is provided with a mounting hole 22, and a driving case 331 is mounted on the top end of the sampling tube 2 by means of a bolt inserted into the mounting hole 22.
During the installation, at first install the opening part in coal breakage pipe 1 one side with control valve 11, install sampling tube 2 on control valve 11 through the screw thread, thereby install sampling tube 2 on coal breakage pipe 1, install screw rod 31's top to reduction gear 32 again, then screw rod 31 and helical blade 32 are placed in sampling tube 2, place driving box 331 on sampling tube 2 top, through inserting the bolt into mounting hole 22, fix the driving box at the sampling tube top, then behind spacing piece 3334 is established to the cover on top hand rocking shaft 3332, hand handle 3333 threaded mounting is on hand rocking shaft 3332 at last. The stopper 3334 prevents the device from shaking when the handle 3333 is turned.
When sampling is performed, the opening of the rotary control valve 11 can be opened by rotating the switch of the rotary control valve 11, and the sampling speed can be controlled by controlling the size of the opening of the rotary control valve 11.
When carrying or maintaining, dismantle the device, at first rotate control valve 11, block up the opening, prevent that the raw coal from leaking outward, then rotate through the screw thread, demolish sampling tube 2 after, through the bolt, demolish drive box 331 after, take out drive box 331 from sampling tube 2, after driving screw 31 of connecting the lower part of drive box 331 and taking out, dismantle screw 31 and manual crank 3333 again.
Further, the screw 31 can also be connected by adopting a plurality of sections of threads, so that the occupied space is reduced.
The utility model discloses the device can all adopt between a plurality of parts and can dismantle the connection, can freely dismantle and conveniently carry and maintain, when carrying, reduces device occupation space.
Example 3
On the basis of the above embodiment, as shown in fig. 2 and fig. 3, the drill 311 is installed at the bottom end of the screw 31, and the drill 311 is installed on the screw 31 through threads, so that the drill is convenient to detach and carry.
The drill bit 311 has a square or downward-pointing cone configuration, preferably a downward-pointing cone configuration.
When the bottom end of the screw 31 is inserted into the coal chute 1 for sampling, the drill 311 is provided below the screw 31, and the insertion of the screw 31 into the raw coal is facilitated by the structure specific to the drill 311.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A raw coal sampling device of a coal feeder of a coal-fired power plant comprises a coal dropping pipe and a sampling pipe arranged on one side of the coal dropping pipe, wherein the sampling pipe is communicated with the inner cavity of the coal dropping pipe;
sampling device includes screw rod, helical blade and drive arrangement, helical blade installs on the screw rod surface, drive arrangement sets up on the sampling tube top, in screw rod one end runs through the sampling tube and extends to the coal breakage pipe, the screw rod other end is connected to drive arrangement.
2. The raw coal sampling device of the coal-fired power plant coal feeder of claim 1, wherein the sampling tube is detachably connected to the coal dropping tube.
3. The raw coal sampling device of the coal-fired power plant coal feeder as defined in claim 2, wherein an opening is formed at one side of the coal dropping pipe, a control valve is disposed at the opening, a thread structure is formed on the outer wall of the sampling pipe, and the sampling pipe is mounted on the control valve through thread fit.
4. The raw coal sampling device of the coal-fired power plant coal feeder of claim 1, wherein the driving device comprises a driving box, a speed reducer and a driving piece, the driving box is arranged at the top end of the sampling tube, the speed reducer and the driving piece are arranged inside the driving box, the top end of the screw rod penetrates through the driving box and is connected to the speed reducer, and the driving piece is connected to the speed reducer.
5. The raw coal sampling device of the coal-fired power plant coal feeder of claim 4, wherein the speed reducer is a reduction gear, the driving member comprises a hand gear, a hand shaft and a hand handle, the reduction gear is meshed with the hand gear, the radius of the hand gear is smaller than that of the reduction gear, one end of the hand shaft is arranged on the hand gear, and one end of the hand shaft penetrates through the driving box and is connected to the hand handle.
6. The raw coal sampling device of the coal-fired power plant coal feeder of claim 5, wherein the hand crank shaft is mounted to the hand crank handle through a threaded connection, and a limiting piece is arranged between the hand crank handle and the driving box.
7. The raw coal sampling device for the coal-fired power plant coal feeder of claim 4, wherein the sampling tube top end is provided with a mounting hole, and the driving box is mounted on the sampling tube top end through a bolt inserted into the mounting hole.
8. The coal fired power plant feeder raw coal sampling device of any one of claims 1 to 7, wherein a drill is mounted to a bottom end of the screw.
9. The coal fired power plant feeder raw coal sampling device of claim 8, wherein the drill bit is threadedly mounted on the screw.
10. The coal fired power plant feeder raw coal sampling device of claim 8, wherein the drill bit is a square or a downward-pointing cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921546324.XU CN210774832U (en) | 2019-09-18 | 2019-09-18 | Coal fired power plant feeder raw coal sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921546324.XU CN210774832U (en) | 2019-09-18 | 2019-09-18 | Coal fired power plant feeder raw coal sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210774832U true CN210774832U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921546324.XU Expired - Fee Related CN210774832U (en) | 2019-09-18 | 2019-09-18 | Coal fired power plant feeder raw coal sampling device |
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| CN (1) | CN210774832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115738127A (en) * | 2022-10-09 | 2023-03-07 | 华能国际电力股份有限公司上海石洞口第二电厂 | Manual fire extinguishing device of coal yard spontaneous combustion |
-
2019
- 2019-09-18 CN CN201921546324.XU patent/CN210774832U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115738127A (en) * | 2022-10-09 | 2023-03-07 | 华能国际电力股份有限公司上海石洞口第二电厂 | Manual fire extinguishing device of coal yard spontaneous combustion |
| CN115738127B (en) * | 2022-10-09 | 2024-01-05 | 华能国际电力股份有限公司上海石洞口第二电厂 | Manual fire extinguishing device for spontaneous combustion of coal yard |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 Termination date: 20210918 |