CN2172861Y - Apparatus for weighing fine coal during flow - Google Patents
Apparatus for weighing fine coal during flow Download PDFInfo
- Publication number
- CN2172861Y CN2172861Y CN 93228934 CN93228934U CN2172861Y CN 2172861 Y CN2172861 Y CN 2172861Y CN 93228934 CN93228934 CN 93228934 CN 93228934 U CN93228934 U CN 93228934U CN 2172861 Y CN2172861 Y CN 2172861Y
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- CN
- China
- Prior art keywords
- fixed
- lever
- utility
- model
- chain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an apparatus for weighing fine coal during flow. The utility model is characterized in that a lever is arranged on the pipe wall of a powder dropping pipe, and a chain is fixed at the left end of the lever. A cone-shaped tray is fixed at the lower end of the chain, and a sensor is fixed at the right end of the lever. A supporting rod is fixed on the inner wall of the powder dropping pipe, and a wind preventing cap is fixed on the supporting rod. The utility model can accurately measure the weight of coal powder passing through the powder dropping pipe and can be used in the industries of a power plant, a boiler, etc.
Description
The utility model belongs to meausring apparatus, relates to a kind of pulverized coal flow weight-measuring device.
In boiler operatiopn, coal consumption is important.At present the boiler in large-size thermal power plant all adopts the dynamic electron belt to claim to measure the boiler combustion coal consumption, for the economical operation of boiler provides main numerical value.But it is very big that this electronic belt scale is influenced by service condition, and as vibration, inclination angle, belt speed or the like, so precision is low, and error is big, brings difficulty to boiler with positive balance method counting yield, influences the accuracy of test figure.
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, volume is little, be subjected to external condition influence little, measure pulverized coal flow weighing device accurately.
The utility model is achieved in that it has a powder sinking tube, and a lever is arranged on the tube wall of powder sinking tube, is fixed with a chain at the lever left end, and the chain lower end is fixed with a taper pallet; Be fixed with a sensor at the lever right-hand member; On the inwall of powder sinking tube, be fixed with a support bar, on support bar, be fixed with the anti-blast cap of a taper.
The utility model has the advantages that simple in structurely, measuring accuracy is subjected to external action little, measures accurately.
Fig. 1 is a front view of the present utility model;
Fig. 2 is the A-A cut-open view of the utility model Fig. 1.
Describe in detail below in conjunction with accompanying drawing:
The utility model has a powder sinking tube 10, and a lever 5 is arranged on the tube wall of powder sinking tube 10, is fixed with a chain 11 at the lever left end, is connected with a taper pallet 6 in chain 11 lower ends; Be fixed with a sensor 4 at lever 5 right-hand members.During use, the upper end of this device is connected with the coal dust feed hopper, the lower end links to each other with the blast pipe that enters boiler, when coal dust from feed hopper through powder sinking tube when freely falling on the pallet 6, pallet 6 is produced a downward power, coal dust glides along pallet 6 inclined-planes then, continues to drop to blast pipe between pallet 6 and powder sinking tube 9, and by wind in boiler.Because blast pipe links to each other with blower fan, and the pressure of blower fan will produce a disturbance that makes progress to pallet, for eliminating of the influence of this power to measuring accuracy, pressure pin 8 of welding on powder sinking tube 9 inwalls, the anti-blast cap 7 of taper of welding on pressure pin 8, the diameter of the anti-blast cap 7 of taper is subjected to the influence of following blast greater than the diameter of taper pallet 6 to prevent pallet 6.Right-hand member at lever 5 is equipped with a sensor 4, so that pallet 6 suffered power are converted into electric signal, can lay steadily for making lever.Suspended wall plate 1 of welding is fixed with a chain 2 on suspended wall plate 1 on the powder sinking tube outer wall, and chain 2 lower ends and lever 5 connect together; On the suspended wall plate, also be fixed with a limited block 3, to prevent waving significantly of lever.
Coal dust from hopper after the powder sinking tube free-falling, impact pallet 6, pallet 6 is produced a downward power, according to lever principle, also produce a power at the lever right-hand member, this power has quantitative relationship with the size that the coal dust amount falls, by being installed in the sensor of lever right-hand member, can convert lever stress to electric signal, and read, and calculate the coal breakage amount by the intelligence instrument that is connected with sensor.
Claims (2)
1, a kind of pulverized coal flow weight-measuring device comprises powder sinking tube, it is characterized in that: a lever is arranged on the tube wall of powder sinking tube, be fixed with a chain at the lever left end, the chain lower end is fixed with a taper pallet; Be fixed with a sensor at the lever right-hand member; On the inwall of powder sinking tube, be fixed with a support bar, on support bar, be fixed with an anti-blast cap.
2, pulverized coal flow weight-measuring device according to claim 1 is characterized in that: the diameter of the anti-blast cap of said taper is greater than the diameter of taper pallet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93228934 CN2172861Y (en) | 1993-08-02 | 1993-08-02 | Apparatus for weighing fine coal during flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93228934 CN2172861Y (en) | 1993-08-02 | 1993-08-02 | Apparatus for weighing fine coal during flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2172861Y true CN2172861Y (en) | 1994-07-27 |
Family
ID=33805894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93228934 Expired - Fee Related CN2172861Y (en) | 1993-08-02 | 1993-08-02 | Apparatus for weighing fine coal during flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2172861Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459819A (en) * | 2014-10-31 | 2015-03-25 | 杭州杭锅电气科技有限公司 | Boiler coal interruption detecting device and method |
| CN104469284A (en) * | 2014-10-31 | 2015-03-25 | 杭州杭锅电气科技有限公司 | Coal interruption detection method for circulating fluidized bed boiler |
| CN104483714A (en) * | 2014-10-31 | 2015-04-01 | 杭州杭锅电气科技有限公司 | Circulating fluidized bed boiler break coal detection device and detection method |
-
1993
- 1993-08-02 CN CN 93228934 patent/CN2172861Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459819A (en) * | 2014-10-31 | 2015-03-25 | 杭州杭锅电气科技有限公司 | Boiler coal interruption detecting device and method |
| CN104469284A (en) * | 2014-10-31 | 2015-03-25 | 杭州杭锅电气科技有限公司 | Coal interruption detection method for circulating fluidized bed boiler |
| CN104483714A (en) * | 2014-10-31 | 2015-04-01 | 杭州杭锅电气科技有限公司 | Circulating fluidized bed boiler break coal detection device and detection method |
| CN104483714B (en) * | 2014-10-31 | 2017-02-22 | 杭州杭锅电气科技有限公司 | Circulating fluidized bed boiler break coal detection device and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |