CN202902313U - Sound wave ash removing machine special for cement waste heat boiler - Google Patents
Sound wave ash removing machine special for cement waste heat boiler Download PDFInfo
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- CN202902313U CN202902313U CN 201220617166 CN201220617166U CN202902313U CN 202902313 U CN202902313 U CN 202902313U CN 201220617166 CN201220617166 CN 201220617166 CN 201220617166 U CN201220617166 U CN 201220617166U CN 202902313 U CN202902313 U CN 202902313U
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- acoustic wave
- soot blower
- wave soot
- heat boiler
- sound wave
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Abstract
The utility model provides a sound wave ash removing machine special for a cement waste heat boiler. The sound wave ash removing machine is used for treatment of ash in a cement waste heat boiler furnace. A programmable logic controller (PLC) full-automatic control system with a touch screen is used. The sound wave ash removing machine comprises a control cabinet, a sound wave ash removing machine body, a motor, an air source and an air pipe which has a connection function between the sound wave ash removing machine body and the air source. The sound wave ash removing machine further comprises a high temperature resistant loudspeaker connected on the sound wave ash removing machine body. A manual valve, a filter and a high temperature Cr-Mo steel electric valve are arranged on a pipeline of the air pipe. The motor is connected with a main shaft of the sound wave ash removing machine. The control cabinet controls the electric valve and the motor. According to the sound wave ash removing machine special for the cement waste heat boiler, a push bearing is arranged on a portion, close to a dynamic-static piece direction, of a main bearing, and bearing lubricating oil is molybdenum disulfide high temperature resistant lubricating oil. When equipment is assembled, a high temperature resistant and a high pressure resistant bolt is used for fastening, engine oil graphite powder is added, and the fact that disassembling is convenient after long-term operation is guaranteed.
Description
Technical field
The utility model relates to the special-purpose acoustic wave soot blower of a kind of cement residual heat boiler.
Background technology
The coal-burning boiler fouling and slagging is a difficult problem that perplexs for a long time the normal operation of boiler, adopts telescopic steam sootblower, uses and will cause soon a large amount of boiler tubes to damage.In the special-purpose acoustic wave soot blower process of exploitation cement residual heat boiler, answer the pact of cement industry, require to research and solve cement residual heat boiler fouling and slagging problem.After having investigated cement industry waste heat boiler operation conditions, recognize, cement residual heat boiler is more than the conventional pulverized-coal boiler, chain-grate boiler slagging scorification dust stratification situation want complicated and severe many.Cement plant, South Lake, Xinjiang 28t/h waste heat boiler uses 24 steam sootblowers, blows ash once in per two hours, boiler operatiopn 2 years, and the crust block pipe damages 1/3, and overheated steam pipe damages half, and boiler only can heat, and can not generate electricity.Cement plant, river, China Oil and Food Import and Export Corporation village 28t/h waste heat boiler uses steam sootblower, after new boiler moves a year and a half, boiler superheater crust block pipe is all changed, and the semiconvection pipe damages, once maintenance, expend more than 80 ten thousand yuan, use fuel gas pulse ash blower instead, proof is stopped using without positive effect after three months.Shawan, Xinjiang cement plant 10 t/h waste heat boilers use 28 at the Ha Deman gas whistle, to no effect stop using after the operation.Building of Aksu of Xinjiang pine 20t/h cement residual heat boiler must be changed superheater tube once in per 2 years.Find after having studied the cement residual heat boiler operation characteristic, the content of cement residual heat boiler dust neutral and alkali compound oxidation potassium sodium oxide molybdena is up to 7%--15%, and the content of the potassium oxide sodium oxide molybdena of conventional operation coal-burning boiler only 0.5%-1.5%, and the strong corrosive materials such as a certain amount of sulfur dioxide are arranged.The potassium oxide sodium oxide molybdena belongs to low grey melting point material: being solid under conventional temperature, is liquid more than 600 ° of C temperature, is gas more than the C temperature at 1100 ° of C-1200 °.Therefore under 600 ° of C-900 ° C temperature conditions, be bonded together with flyash, be bonded in a large number boiler crust block pipe and superheater tube surface.
According to above-mentioned condition, to this removing ash of boiler, must adopt more powerful deashing means.Domestic have regular employing giant deashing, but cold water can produce water glass-hardened fire action to 500 ° of C-600 ° of C temperature tube walls, unavoidably the high temperature pipe is damaged.The bump of employing superheater tube is also arranged, make its vibration, dust stratification falls.Superheater tube is hanging structure, and impacting for a long time can damage weld bond and stressed pressure-containing member.
If the employing sound wave ashing then can not cause above-mentioned injury, we must develop novel sound wave ash cleaner more powerful and that certain anticorrosive property is arranged, to solve cement residual heat boiler slagging scorification dust stratification problem.
The utility model content
For overcoming the above defective, the utility model provides a kind of cement residual heat boiler special-purpose acoustic wave soot blower, its technical scheme is as follows: the special-purpose acoustic wave soot blower of a kind of cement residual heat boiler, be applied to the processing of lime-ash in the cement residual heat boiler furnace chamber, adopt PLC band touch-screen full-automatic control system, acoustic wave soot blower comprises switch board, the acoustic wave soot blower body, motor, play the tracheae of connection function between source of the gas and acoustic wave soot blower body and the source of the gas, also comprise the loudspeaker that are connected on the acoustic wave soot blower body, also be provided with hand-operated valve on the pipeline of described tracheae, filter and motor-driven valve, described motor connects the acoustic wave soot blower main shaft, described switch board control motor-driven valve and motor.
Further, described acoustic wave soot blower body comprises housing, main shaft, power transmission shaft, moving plate, still and sounding cover, described housing is cylindric, two ends have connecting pin, have air admission hole, tank filler sleeve and pressure tap on the housing wall, described main shaft is arranged on the inside of housing, and main shaft is by shaft coupling connection for transmission axle, and power transmission shaft connects moving plate; Described moving plate is dish type, and the moving plate middle part has centre bore, and the cross section that is provided with a plurality of circumferential arrangement of trying to get to the heart of a matter of moving plate is trapezoidal trapezoidal hole, and the gradient of this trapezoidal hole is 5 °; Described still is connected in the Connection Block that stretches out on the housing and fits tightly with moving plate, and this Connection Block is the loop configuration with centre bore, and this centre bore surrounds the moving plate hoop, and still and this Connection Block are with bolts; Described sounding cover cap has the gap in the still outer face between described moving plate and the Connection Block; Form the sounding chamber between housing, Connection Block, power transmission shaft and the moving plate.
Further, described loudspeaker are the outlet hyperbolic horn, and loudspeaker are high temperature resistant, and material is heat resisting cast steel, and the heatproof temperature is 1100 ° more than the C.
Further, described sound sheet gap is 0.3-1.0 mm.
The material of described dynamic and static further,, sounding cover and corresponding connecting bolt is stainless steel material.
Further, described sounding chamber body changes the heat resisting cast steel material into; The material of motor-driven valve is high temperature Lopa Nationality molybdenum steel.
Further, the material of described main shaft is the 40Cr steel.
The special-purpose acoustic wave soot blower of this cement residual heat boiler that the utility model provides, base bearing is thrust bearing by sound sheet direction, bearing oil is the high temperature resistant butter of molybdenum bisuphide.Equipment adopts the high temperature high voltage resistant bolted in assembling process, and adding machine oilstone ink powder, and repair demolition is convenient after the guarantee long-time running.
Description of drawings
Fig. 1 is the special-purpose acoustic wave soot blower structural representation of the utility model cement residual heat boiler;
Fig. 2 is acoustic wave soot blower bulk junction composition;
Fig. 3 is that acoustic wave soot blower is installed on the furnace wall structure schematic diagram;
The 1-switch board; The 2-motor; 3-acoustic wave soot blower body; The 4-furnace wall; The 5-source of the gas; The 6-hand-operated valve; The 7-filter; The 8-motor-driven valve; The 9-tracheae; The 10-loudspeaker; The 31-main shaft; The 32-shaft coupling; The 33-tank filler sleeve; The 34-power transmission shaft; 35-admant China ink plane sealing structure; The 36-pressure tap; 37-sounding cover; The 38-moving plate; The 39-air admission hole; The 310-still; The 311-housing; 312-sounding chamber; The 313-Connection Block.
The specific embodiment
As shown in Figure 1, acoustic wave soot blower comprises the tracheae 9 that plays connection function between switch board 1, acoustic wave soot blower body 3, motor 2, source of the gas 5 and acoustic wave soot blower body 3 and the source of the gas 5, also comprise the loudspeaker 10 that are connected on the acoustic wave soot blower body 3, also be provided with hand-operated valve 6, filter 7 and motor-driven valve 8 on the pipeline of described tracheae 9, motor 2 connects the main shaft 31 of acoustic wave soot blower body, described switch board 1 control motor-driven valve 8 and motor 2.
As shown in Figure 2, the acoustic wave soot blower body comprises housing 311, main shaft 31, power transmission shaft 34, moving plate 38, sounding cover 37 and still 310, described housing 311 is cylindric, two ends have connecting pin, have air admission hole 39, tank filler sleeve 33 and pressure tap 36 on the housing wall, described main shaft 31 is arranged on the inside of housing 311, and main shaft 31 is by shaft coupling 32 connection for transmission axles 34, and power transmission shaft 34 connects moving plate 38; Described moving plate 38 is dish type, and moving plate 38 middle parts have centre bore, and the cross section that is provided with a plurality of circumferential arrangement of trying to get to the heart of a matter of moving plate 38 is trapezoidal trapezoidal hole, and the gradient of this trapezoidal hole is 5 °; Described still 310 is connected in the Connection Block 313 that stretches out on the housing 311 and fits tightly with moving plate 38, and this Connection Block 313 is for having the loop configuration of centre bore, and this centre bore surrounds moving plate 38 hoops, and still 310 is with bolts with this Connection Block 313; Described sounding cover 37 covers in still 310 outer faces, has the gap between described moving plate 38 and the Connection Block 313; Form sounding chamber 312 between housing 311, Connection Block 313, power transmission shaft 34 and the moving plate 38.
The special-purpose acoustic wave soot blower of this cement residual heat boiler that the utility model provides, vapour source 5 is cement waste-heat oven self superheated steam, design pressure 2.5MPa, 400 ° of C of temperature--425 C need not be through decompression.Wherein the perforate of sound sheet is that 5 * 20mm is trapezoidal, and the sound sheet all has the 10-15 hole.Set throat sounding chamber 312, draw weary that jet pipe acoustic conducting pipe and hyperbolic horn.
As shown in Figure 3, two acoustic wave soot blowers are installed on the furnace wall 4, according to the sound pressure level of acoustic wave soot blower effective deashing on boiler, select the best position of furnace wall 4 and set the best frequency of sound wave of dust remover.This sonic generator has used admant China ink plane sealing structure 35, has solved at source of the gas under the high speed conditions of high temperature the key issue that seals on the acoustic wave soot blower.This acoustic wave soot blower is under the Half free sound field condition, and intensity of phonation on average increases approximately 7dB--12dB of intensity of phonation between 153dB-159dB.If use two installations that liquidate, can effectively remove 12 meters with interior slagging scorification and 18 meters with interior dust stratification, and can satisfy 300MW boiler unit with interior High-temperature Superheater In A Boiler slagging scorification and 1000MW boiler unit with interior boiler low-temperature section dust stratification.In running, owing to being applied to cement residual heat boiler, can adopt the operation of separate unit acoustic wave soot blower; Also can adopt two acoustic wave soot blowers to work simultaneously, the sounding energy can increase 3dB again, and each working time of every acoustic wave soot blower must not be less than 2 minutes, is generally 4 minutes, stops 1 minute, restarts next acoustic wave soot blower, systemic circulation be two hours once.
The specific embodiment described in the utility model does not consist of the restriction to the application's scope; every within the spirit and principle of the utility model design, any modification that one of skill in the art can make, be equal to and replace and improvement etc. all should be included within the protection domain of the present utility model.
Claims (7)
1. the special-purpose acoustic wave soot blower of a cement residual heat boiler, it is characterized in that, described acoustic wave soot blower is applied to the processing of the interior lime-ash of furnace chamber of cement residual heat boiler, adopt PLC band touch-screen full-automatic control system, described acoustic wave soot blower comprises switch board, the acoustic wave soot blower body, motor, play the tracheae of connection function between source of the gas and acoustic wave soot blower body and the source of the gas, also comprise the loudspeaker that are connected on the acoustic wave soot blower body, also be provided with hand-operated valve on the pipeline of described tracheae, filter and motor-driven valve, described motor connects the acoustic wave soot blower main shaft, described switch board control motor-driven valve and motor.
2. the special-purpose acoustic wave soot blower of cement residual heat boiler according to claim 1, it is characterized in that, described acoustic wave soot blower body comprises housing, main shaft, power transmission shaft, moving plate, still and sounding cover, described housing is cylindric, two ends have connecting pin, have air admission hole, tank filler sleeve and pressure tap on the housing wall, and described main shaft is arranged on the inside of housing, main shaft is by shaft coupling connection for transmission axle, and power transmission shaft connects moving plate; Described moving plate is dish type, and the moving plate middle part has centre bore, and the cross section that is provided with a plurality of circumferential arrangement of trying to get to the heart of a matter of moving plate is trapezoidal trapezoidal hole, and the gradient of this trapezoidal hole is 5 °; Described still is connected in the Connection Block that stretches out on the housing and fits tightly with moving plate, and this Connection Block is the loop configuration with centre bore, and this centre bore surrounds the moving plate hoop, and still and this Connection Block are with bolts; Described sounding cover cap has the gap in the still outer face between described moving plate and the Connection Block; Form the sounding chamber between housing, Connection Block, power transmission shaft and the moving plate.
3. the special-purpose acoustic wave soot blower of cement residual heat boiler according to claim 1 is characterized in that, described loudspeaker are the outlet hyperbolic horn, and material is heat resisting cast steel, and the heatproof temperature is 1100 ° more than the C.
4. the special-purpose acoustic wave soot blower of cement residual heat boiler according to claim 1 is characterized in that, described sound sheet gap is 0.3-1.0 mm.
5. the special-purpose acoustic wave soot blower of cement residual heat boiler according to claim 1 is characterized in that, the material of described dynamic and static, sounding cover and corresponding connecting bolt is stainless steel material.
6. the special-purpose acoustic wave soot blower of cement residual heat boiler according to claim 1 is characterized in that, described sounding chamber body changes the heat resisting cast steel material into.
7. the special-purpose acoustic wave soot blower of cement residual heat boiler according to claim 1 is characterized in that, the material of described main shaft is the 40Cr steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220617166 CN202902313U (en) | 2012-11-20 | 2012-11-20 | Sound wave ash removing machine special for cement waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220617166 CN202902313U (en) | 2012-11-20 | 2012-11-20 | Sound wave ash removing machine special for cement waste heat boiler |
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| Publication Number | Publication Date |
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| CN202902313U true CN202902313U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220617166 Expired - Fee Related CN202902313U (en) | 2012-11-20 | 2012-11-20 | Sound wave ash removing machine special for cement waste heat boiler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954479A (en) * | 2012-11-20 | 2013-03-06 | 乌鲁木齐奥科技术开发有限公司 | Dedicated sonic cinder cleaner for cement waste heat boiler |
| CN104941436A (en) * | 2015-06-24 | 2015-09-30 | 上海巴微环保工程有限公司 | Sound wave defogging device |
-
2012
- 2012-11-20 CN CN 201220617166 patent/CN202902313U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954479A (en) * | 2012-11-20 | 2013-03-06 | 乌鲁木齐奥科技术开发有限公司 | Dedicated sonic cinder cleaner for cement waste heat boiler |
| CN102954479B (en) * | 2012-11-20 | 2016-04-13 | 乌鲁木齐奥科技术开发有限公司 | The special acoustic wave soot blower of cement residual heat boiler |
| CN104941436A (en) * | 2015-06-24 | 2015-09-30 | 上海巴微环保工程有限公司 | Sound wave defogging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130424 Termination date: 20171120 |