CN101504146A - Steel ball sowing apparatus - Google Patents
Steel ball sowing apparatus Download PDFInfo
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- CN101504146A CN101504146A CNA2009100215182A CN200910021518A CN101504146A CN 101504146 A CN101504146 A CN 101504146A CN A2009100215182 A CNA2009100215182 A CN A2009100215182A CN 200910021518 A CN200910021518 A CN 200910021518A CN 101504146 A CN101504146 A CN 101504146A
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- steel ball
- buffering bucket
- bounce
- sowing apparatus
- back device
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Abstract
The invention discloses a steel ball spreading device for steel ball ash removal of a boiler. The device comprises a buffer hopper, a distribution adjusting rod, a guide pipe, an adjusting rod of a rebounding machine, a steel ball nozzle, and a steel ball rebounding machine. The prior steel ball spreading device has the common defects, namely the steel balls are not evenly distributed on the cross section of a hearth, the density distribution cannot be adjusted, the steel balls are easily rusted and agglomerated and the like, so that the ash deposit on the heating surface cannot be completely and effectively removed, the big ash deposit is agglomerated locally, and the reliability of a system is not high. The device is characterized in that: a set of steel ball spreading device is designed aiming at the steel ball ash removal mode of the boiler, so that the device can ensure the reasonable density distribution of steel ball spreading and the adjustability of the density distribution of the steel ball spreading; moreover, the device creates conditions for realizing the automatic control of the highly efficient steel ball ash removal.
Description
Technical field
The invention belongs to the deashing device in power engineering technology field, be specifically related to a kind of steel ball sowing apparatus that is used for the boiler steel balls soot cleaning system.
Background technology
Other removing ash of boiler modes, as: compressed air soot-blowing, mechanical vibrator, steam soot blowing, for caking property dust stratification, fastness dust stratification, the result of use of meeting the dust stratification that water can chemically reactive is often not good enough or inapplicable, and the steel ball purge mode has relative advantage.
Steel ball sowing apparatus is the important component part of steel ball soot cleaning system.The existing systems majority forms the principle of sowing based on steel ball bounce-back, but also exists some than general shortcoming, as steel ball bounce-back back skewness on the burner hearth cross section, and the also Density Distribution of uncontrollable steel ball sowing, the steel ball caking etc. that gets rusty, unites.
The steel ball sowing inequality causes the skewness of dust stratification on heating surface, influences the heat transfer efficiency of heat exchanger, even dust stratification may take place forms the situation that bulk lost efficacy heating surface in the part, forms potential safety hazard.The flue-gas temperature of the boiler of some use steel ball purge modes is lower, ash component is complicated, and the layout of heating surface also has more restriction, and this just requires steel ball sowing apparatus can adapt to different heated face structures.In design in the past, on same horizontal plane, generally have only the spout of a steel ball sowing, this is based on the hypothesis of subquadrate exhaust gases passes; And often be in actual applications length-width ratio always near square, the lower heating surface of flue-gas temperature particularly, length-width ratio is often bigger, what have reaches more than 2.At this moment the inequality of only using a steel ball sowing spout can cause steel ball on cross section, to distribute.
The stability of heat transmission equipment operation and reliability are to estimate an importance of its performance.Under the situation of steel ball sowing inequality, often need to move the steel ball soot cleaning system continually, increased the unreliability of system.In addition, steel ball circulates in soot cleaning system, the caking that very easily gets rusty, unites during interim storage, contains H especially in flue gas
2O, SO
2Situation Deng the ash content of gas, complicated ingredient.Steel ball can stop up steel ball sowing spout, steel ball conduit in case caking just is difficult to eliminate, and the maintenance difficulty is big.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can guarantee rational Density Distribution of steel ball sowing and controllability, realize that the steel ball soot cleaning system is reliable, the steel ball sowing apparatus of controlled operation.
In order to achieve the above object, main solution of the present invention is: the buffering bucket that is fixed with the import of band steel ball on the furnace wall ceiling above the boiler heating surface, it is characterized in that: the lower end of buffering bucket is provided with one or two conduit that is connected with buffering bucket, be provided with steel ball in the buffering bucket and distribute adjusting rod, side at buffering bucket is provided with support, the support lower end is provided with the spout that is connected with conduit, and be provided with steel ball bounce-back device in the lower end of spout, steel ball bounce-back device is sleeved on the support of buffering bucket side by bounce-back device adjusting rod.
Buffering bucket of the present invention adopts the sloping tubular structure of bottom margin; Conduit is symmetrically arranged when being two; Buffering bucket is coated with insulation material; Spout is the horn-like enlarging that there is certain taper at the edge; Steel ball bounce-back device is the aspheric surface revolving body, and portion has through hole in the bounce-back general ability, 2 times diameter of the steel ball≤through hole diameter≤1/4 bounce-back device bottom surface diameter.
The present invention adjusts the flow of steel ball in individual spout by the circulation area that steel ball distributes adjusting rod to regulate the duct entry of buffering bucket bottom.In the time of need storing steel ball in buffering bucket, as long as distribute adjusting rod that the duct entry of buffering bucket bottom is all blocked by steel ball, steel ball just can be temporary in the buffering bucket inner accumulated temporarily.Regulate the bounce-back device is realized steel ball Density Distribution under the spout to the vertical range of spout adjusting by bounce-back device adjusting rod.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2;
Fig. 3 is the structural representation of spout of the present invention and steel ball bounce-back device.
The specific embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and operation principle are described in further detail.
Referring to Fig. 1,3, the present invention is fixed with the buffering bucket 4 of the sloping tubular structure of bottom margin of band steel ball import 1 on 3 ceilings of the furnace wall above the boiler heating surface 10, the lower end of buffering bucket 4 is provided with two symmetrical conduits 5 that are connected with buffering bucket 4, be provided with steel ball in the buffering bucket 4 and distribute adjusting rod 2, be provided with support 7 in the side of buffering bucket 4, the support lower end is provided with the spout 8 that is connected with conduit 5, there is the horn-like enlarging of certain taper at the edge of spout 8, and be provided with steel ball bounce-back device 9 in the lower end of spout 8, steel ball bounce-back device 9 is the aspheric surface revolving body, portion has through hole in the bounce-back general ability, and 2 times diameter of the steel ball≤through hole diameter≤1/4 bounce-back device bottom surface diameter steel ball bounce-back device 9 is sleeved on the support 7 of buffering bucket 4 sides by bounce-back device adjusting rod 6.
In the gap of operation of steel ball soot cleaning system or steel ball sowing, buffering bucket 4 is as the interim container that stores steel ball, and this moment, steel ball distributed adjusting rod 2 that conduit 5 cuts out, and steel ball stores in the atmosphere of buffering bucket 4 inner dryings.Temperature in the buffering bucket 4 should be more than the dew-point temperature, below 300 ℃, to guarantee the drying in the buffering bucket 4, prevents the steel ball caking that gets rusty, unites, if buffering bucket 4 fire box temperature outward is higher, can coat some insulation materials outside buffering bucket 4.The circulation area that steel ball distributes adjusting rod 2 to be used for regulating conduit 5 inlets of buffering bucket 4 bottoms is adjusted the flow of steel ball at spout 8.In the time of need storing steel ball in buffering bucket 4, as long as by distributing adjusting rod 2 that conduit 5 inlets of buffering bucket bottom are all blocked, steel ball just can be temporary in the buffering bucket inner accumulated temporarily.Bounce-back device adjusting rod 6 is by moving up and down the distance of regulating between steel ball bounce-back device 9 and the spout 8, locks after being adjusted to correct position.
Embodiment 2, referring to Fig. 2, and 3, present embodiment adopts a conduit 5, and this conduit 5 is connected with spout 8 under being positioned at buffering bucket 4, and other annexation is with embodiment 1.
Claims (6)
1, a kind of steel ball sowing apparatus, on furnace wall (3) ceiling of boiler heating surface (10) top, be fixed with the buffering bucket (4) of band steel ball import (1), it is characterized in that: the lower end of buffering bucket (4) is provided with one or two conduit (5) that is connected with buffering bucket (4), be provided with steel ball in the buffering bucket (4) and distribute adjusting rod (2), be provided with support (7) in the side of buffering bucket (4), the support lower end is provided with the spout (8) that is connected with conduit (5), and be provided with steel ball bounce-back device (9) in the lower end of spout (8), steel ball bounce-back device 9 is sleeved on the support (7) of buffering bucket 4 sides by bounce-back device adjusting rod (6).
2, steel ball sowing apparatus according to claim 1 is characterized in that: said buffering bucket (4) adopts the sloping tubular structure of bottom margin.
3, steel ball sowing apparatus according to claim 1 is characterized in that: said conduit (5) is symmetrically arranged when being two.
4, steel ball sowing apparatus according to claim 1 is characterized in that: said buffering bucket (4) is coated with insulation material.
5, steel ball sowing apparatus according to claim 1 is characterized in that: said spout (8) has the horn-like enlarging of certain taper for the edge.
6, steel ball sowing apparatus according to claim 1 is characterized in that: said steel ball bounce-back device (9) is the aspheric surface revolving body, and portion has through hole in the bounce-back general ability, 2 times diameter of the steel ball≤through hole diameter≤1/4 bounce-back device bottom surface diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100215182A CN101504146B (en) | 2009-03-13 | 2009-03-13 | Steel ball sowing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100215182A CN101504146B (en) | 2009-03-13 | 2009-03-13 | Steel ball sowing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101504146A true CN101504146A (en) | 2009-08-12 |
| CN101504146B CN101504146B (en) | 2010-09-15 |
Family
ID=40976468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100215182A Expired - Fee Related CN101504146B (en) | 2009-03-13 | 2009-03-13 | Steel ball sowing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101504146B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701775B (en) * | 2009-11-05 | 2011-11-09 | 杭州杭锅工业锅炉有限公司 | Residual heat boiler of steel ball dedusting type ore heat furnace |
| CN103244959A (en) * | 2013-04-27 | 2013-08-14 | 江苏太湖锅炉股份有限公司 | Secondary uniform steel ball distribution structure |
| CN104132544A (en) * | 2014-07-01 | 2014-11-05 | 宁夏天纵泓光余热发电技术有限公司 | steel ball scattering device for steel ball dedusting-type submerged arc furnace waste heat boiler |
-
2009
- 2009-03-13 CN CN2009100215182A patent/CN101504146B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701775B (en) * | 2009-11-05 | 2011-11-09 | 杭州杭锅工业锅炉有限公司 | Residual heat boiler of steel ball dedusting type ore heat furnace |
| CN103244959A (en) * | 2013-04-27 | 2013-08-14 | 江苏太湖锅炉股份有限公司 | Secondary uniform steel ball distribution structure |
| CN104132544A (en) * | 2014-07-01 | 2014-11-05 | 宁夏天纵泓光余热发电技术有限公司 | steel ball scattering device for steel ball dedusting-type submerged arc furnace waste heat boiler |
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| Publication number | Publication date |
|---|---|
| CN101504146B (en) | 2010-09-15 |
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Granted publication date: 20100915 Termination date: 20190313 |
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| CF01 | Termination of patent right due to non-payment of annual fee |