CN103285979A - Low-noise sound insulation sleeve for double-ended ball mill - Google Patents
Low-noise sound insulation sleeve for double-ended ball mill Download PDFInfo
- Publication number
- CN103285979A CN103285979A CN2013102199208A CN201310219920A CN103285979A CN 103285979 A CN103285979 A CN 103285979A CN 2013102199208 A CN2013102199208 A CN 2013102199208A CN 201310219920 A CN201310219920 A CN 201310219920A CN 103285979 A CN103285979 A CN 103285979A
- Authority
- CN
- China
- Prior art keywords
- sound insulation
- layer
- sound
- double
- face
- 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.)
- Pending
Links
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
The invention relates to the technical field of mechanical noise reducing and particularly relates to a sound insulation sleeve. The sound insulation sleeve comprises a sound insulation sleeve inner layer (1), a metal foam aluminum plate layer (3), an outer layer sound-absorption fabric-smearing layer (4) and a sound insulation sleeve outer layer (5), wherein an inner layer sound-absorption fabric-smearing layer (2) is laid on the sound insulation sleeve inner layer (1); the metal foam aluminum plate layer (3) is laid on the inner layer sound-absorption fabric-smearing layer (2); the outer layer sound-absorption fabric-smearing layer (4) is laid on the metal foam aluminum plate layer (3); the sound insulation sleeve outer layer (5) is laid on the outer layer sound-absorption fabric-smearing layer (4). The sound insulation sleeve for reducing the noise of a double-ended ball mill is the low-noise sound insulation sleeve having the characteristics of compact structure, convenient implementation, relatively low cost and good sound reducing effect; by utilizing the metal foam aluminum plate layer which is light, can resist high temperature, reduce the cavity noise and can be recycled to form the filling material of the sound insulation sleeve of the ball mill, the noise of the ball mill can be reduced by 12dB-20dB (A), so that the safety protection of operators and the environmental protection are promoted.
Description
Technical field
The present invention relates to mechanical noise reduction technology field, be specifically related to a kind of sound insulation cover for reducing the double-inlet and double-outlet steel ball coal mill noise.
Background technology
The method of controlling double-inlet and double-outlet steel ball grinding machine noise in the market is a lot, adopts acoustic hood with cylindrical shell and drive disk assembly sealing usually, builds ball mill sound booth control etc.But install acoustic hood additional the heat radiation of running unit is had a negative impact, and during repair apparatus, need acoustic hood is removed, easily cause damage, the difficult ball mill ruuning situation of observing simultaneously is for site examining and repairing and operation staff bring very big inconvenience.Double-inlet and double-outlet steel ball coal mill is widely used in industries such as papermaking, cement and thermoelectricity generatings because of stable and reliable working performance, coal adaptability is strong and adjustable range is wide characteristics.But coal pulverizer is as the main noise source in the power plant, its noise is generally up to 110dB～120dB (A), noise level limit 85dB～the 90dB (A) of the job site in the workshop of the industrial enterprise of regulation and operation place in China's " industrial enterprise's noise sanitary standard " causes severe noise to pollute to the operations staff's of power plant environment physically and mentally healthy and on every side.Therefore the noise reduction measure of reduce the ball mill noise, seeking low speed coal mill is very important meaning to the working environment meaning of improving on-the-spot operation maintenance personnel.
Double-inlet and double-outlet steel ball coal mill, the overall structure schematic diagram as shown in Figure 1, its noise source mainly is divided into three parts: collide the noise that produces when cylindrical shell rotates between steel ball and steel ball, steel ball and cylindrical shell (coal pulverizer lining tile) and steel ball and raw coal mutually, its noise is up to 115dB～120dB (A); The noise of motor and Powder discharging fan is generally about 90dB (A); The noise that drive disk assembly produces, its noise figure is generally also about 90dB (A).This shows that the vibration that the steel ball impact produces in the minimizing cylindrical shell and the acoustic radiation that reduces drum surface are the keys of solution low speed coal mill noise.
Summary of the invention
In order to overcome above-mentioned the problems of the prior art, the invention provides that a kind of low noise is two to be advanced
Two tapping ball milling coal machine drum body sound insulation covers, described coal pulverizer cylindrical shell is by stack shell I, armor II
Form with asbestos pad III, it is characterized in that:
Sound insulation cover ground floor is welded by steel plate for sound insulation cover internal layer 1, and thickness range is 10～20mm, on the asbestos pad III that is laid in; The second layer is the internal layer sound absorption bed of material 2 of wiping one's face, and thickness is not less than 10mm, on the being laid in sound insulation cover internal layer 1, adopts the sound absorption material of wiping one's face to carry out mud and wipe one's face; The 3rd layer is metal foamed aluminium flaggy 3, adopt partitioned organization, adopt straight tenon 6 to be connected with straight trough 7 between each piece, by each layer of bolt-through sound insulation cover, and be connected with the double-inlet and double-outlet steel ball coal mill cylindrical shell, be fixed on the cylindrical shell, described metal foamed aluminium board 3 thickness ranges are 30～40mm, and the internal layer that is laid in sound absorption is wiped one's face on the material 2; The 4th layer is the outer bed of material 4 of wiping one's face that absorbs sound, and thickness is not less than 10mm, on the metal foamed aluminium flaggy 3 that is laid in, adopts sound absorption to wipe one's face and expects that carrying out mud wipes one's face; Layer 5 is outer 5 for sound insulation cover, is welded by steel plate, and thickness range is 10～20mm, and the outer sound absorption that is laid in wipes one's face on the material 4;
Wherein, above-mentioned each layer connects by bolt between radially to be fixed, and this bolt has the length that can reach the coal pulverizer cylindrical shell.
Wherein, the described internal layer sound absorption material 2 of wiping one's face is wiped one's face material 4 respectively to fill with outer sound absorption
Mode be laid in respectively between sound insulation cover internal layer 1 and the metal foamed aluminium flaggy 3, and
Between metal foamed aluminium flaggy 3 and the sound insulation cover outer 5.
Wherein, described formation sound insulation cover internal layer 1 is stainless-steel sheet with the steel plate of sound insulation cover outer 5.
Wherein, described metal foamed aluminium flaggy (3) is irregular through hole aluminium sheet
Beneficial effect
Low noise double-inlet and double-outlet steel ball coal mill sound insulation cover provided by the invention is a kind of compact conformation, implements the low noise sound insulation cover convenient, that expense is lower, noise reduction is good, adopts a kind of quality metal foamed aluminium board light, high temperature resistant, that reduce cavity noise, recyclable utilization to constitute the packing material of this ball mill sound insulation cover.Compare with other sound-absorbing materials such as glass fibre, mineral wools, the noise of metal foamed aluminium board centering low-frequency range has good acoustically effective, and itself have certain rigidity, need not other metal materials and support, can make the ball mill noise reduce 12dB～20dB (A); The cover of this sound insulation simultaneously can rotate with cylindrical shell, and safety inspection and overhaul of the equipments are all very convenient, easily finds and gets rid of accident potential, also is convenient to remove the cylindrical shell bottom and amasss thing, is conducive to operations staff's safeguard protection and environmental protection.
Description of drawings
Shown in Figure 1 is low noise double-inlet and double-outlet steel ball coal mill overall structure schematic diagram;
Shown in Figure 2 is low noise double-inlet and double-outlet steel ball coal mill cylindrical shell sound insulation cover sectional view;
Low noise double-inlet and double-outlet steel ball coal mill cylindrical shell sound insulation cover partial structurtes schematic diagram shown in Figure 3.
The specific embodiment
Choose that measuring point carries out noise monitoring in certain double-inlet and double-outlet steel ball coal mill, former ball mill plant noise is about 118dB(A), shown in Figure 1 is low noise double-inlet and double-outlet steel ball coal mill overall structure schematic diagram; Shown in Figure 2 is low noise double-inlet and double-outlet steel ball coal mill cylindrical shell sound insulation cover sectional view;
Low noise double-inlet and double-outlet steel ball coal mill cylindrical shell sound insulation cover partial structurtes shown in Figure 3 are shown.As can be seen, this sound insulation cover is made up of following structure from the internal layer to the skin successively: ground floor overlaps internal layer 1 for sound insulation, is welded 1 by corrosion resistant plate or the steel plate of 10mm thickness, is laid on asbestos pad III, is welded by steel plate; It is that the internal layer sound absorption of the 10mm material 2 of wiping one's face carries out mud and wipes one's face that the second layer adopts thickness, on the being laid in sound insulation cover internal layer 1; The 3rd layer is the metal foamed aluminium board 3 of 30mm thickness, and the internal layer that is laid in sound absorption is wiped one's face on the material 2; The 4th layer is adopted thickness is that the skin sound absorption of the 10mm material 4 of wiping one's face carries out mud and wipes one's face, on the metal foamed aluminium board 3 that is laid in; Layer 5 is sound insulation cover skin 5, and this layer and sound insulation cover internal layer 1 structural similarity also adopt the corrosion resistant plate of 10mm thickness or steel plate to be welded.The noise that installs this double-inlet and double-outlet steel ball coal mill after sound insulation is overlapped additional obviously reduces, generally can reduce by 10～15dB (A), the noise reduction amplitude can reach more than the 10dB (A) at least, the noise reduction highly significant, substantially can satisfy the noise figure of regulation in " industrial enterprise's noise sanitary standard ", improve operations staff's working environment.
Claims (4)
1. a low noise double-inlet and double-outlet steel ball coal mill cylindrical shell sound insulation is overlapped, and described cylindrical shell is by stack shell
(I), armor (II) and asbestos pad (III) form, it is characterized in that:
Sound insulation cover ground floor is welded by steel plate for sound insulation cover internal layer (1), and thickness range is 10～20mm, on the asbestos pad that is laid in (III);
The second layer is the internal layer sound absorption bed of material (2) of wiping one's face, and on (1), thickness is not less than 10mm in the being laid in sound insulation cover, adopts the sound absorption material of wiping one's face to carry out mud and wipe one's face;
The 3rd layer is metal foamed aluminium flaggy (3), adopt partitioned organization, adopt straight tenon (6) to be connected with straight trough (7) between each piece, by each layer of bolt-through sound insulation cover, and be connected with the double-inlet and double-outlet steel ball coal mill cylindrical shell, be fixed on the cylindrical shell, described metal foamed aluminium board (3) thickness range is 30～40mm, and the internal layer that is laid in sound absorption is wiped one's face on the material (2);
The 4th layer is the outer bed of material (4) of wiping one's face that absorbs sound, and thickness is not less than 10mm, on the metal foamed aluminium flaggy (3) that is laid in, adopts sound absorption to wipe one's face and expects that carrying out mud wipes one's face;
Layer 5 is welded by steel plate for sound insulation cover outer (5), and thickness range is 10～20mm, and the outer sound absorption that is laid in is wiped one's face on the material (4);
Wherein, above-mentioned each layer connects by bolt between radially to be fixed, and this bolt has the length that can reach the coal pulverizer cylindrical shell.
2. low noise double-inlet and double-outlet steel ball coal mill cylindrical shell sound insulation according to claim 1 is overlapped, wherein, described internal layer sound absorption material (2) and the outer sound absorption material (4) of wiping one's face of wiping one's face is laid in respectively between sound insulation cover internal layer (1) and the metal foamed aluminium flaggy (3) in the mode of filling respectively, and metal foamed aluminium flaggy (3) and insulate against sound and overlap between the skin (5).
3. low noise double-inlet and double-outlet steel ball coal mill cylindrical shell sound insulation according to claim 1 is overlapped, and wherein, described formation sound insulation cover internal layer (1) is stainless-steel sheet with the steel plate that outer (5) are overlapped in sound insulation.
4. low noise double-inlet and double-outlet steel ball coal mill cylindrical shell sound insulation according to claim 1 is overlapped, and wherein, described metal foamed aluminium flaggy (3) is irregular through hole aluminium sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102199208A CN103285979A (en) | 2013-06-04 | 2013-06-04 | Low-noise sound insulation sleeve for double-ended ball mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102199208A CN103285979A (en) | 2013-06-04 | 2013-06-04 | Low-noise sound insulation sleeve for double-ended ball mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103285979A true CN103285979A (en) | 2013-09-11 |
Family
ID=49087813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102199208A Pending CN103285979A (en) | 2013-06-04 | 2013-06-04 | Low-noise sound insulation sleeve for double-ended ball mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103285979A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920568A (en) * | 2014-05-07 | 2014-07-16 | 苏州皇森机电科技有限公司 | Efficient muting ball mill |
| CN104001597A (en) * | 2014-05-26 | 2014-08-27 | 顾开明 | Novel lining plate structure of ball mill |
| CN104405113A (en) * | 2014-10-29 | 2015-03-11 | 成都科盛石油科技有限公司 | Low-noise cutting device |
| CN106205586A (en) * | 2016-07-11 | 2016-12-07 | 武汉理工大学 | A kind of metal-based foam fills broad band low frequency gap elasticity Meta Materials |
| CN109967216A (en) * | 2019-04-02 | 2019-07-05 | 吴光明 | A kind of noise abatement method of cement plant grinding machine |
| CN110961202A (en) * | 2019-12-29 | 2020-04-07 | 王莉 | High-efficient ball mill is used in cement manufacture |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510161Y (en) * | 2001-10-31 | 2002-09-11 | 陈荐 | Ball Mill Multi-layer structure sound-proof shield |
| CN201000744Y (en) * | 2007-02-01 | 2008-01-02 | 江苏中能电力设备有限公司 | Sound arrester of large noise equipment |
| CN201707910U (en) * | 2010-04-02 | 2011-01-12 | 攀钢集团冶金工程技术有限公司 | Sound insulating hood |
| CN103032379A (en) * | 2013-01-05 | 2013-04-10 | 华北电力大学（保定） | Low-noise centrifugal ventilator casing |
| CN103032381A (en) * | 2013-01-05 | 2013-04-10 | 华北电力大学（保定） | Enclosure for reducing noise of axial flow fan |
| WO2013072629A1 (en) * | 2011-11-14 | 2013-05-23 | Centre D'etude Et De Recherche Pour L'automobile (Cera) | Thin acoustic protection device intended to be installed against a wall of an electric motor casing for a motor vehicle |
-
2013
- 2013-06-04 CN CN2013102199208A patent/CN103285979A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510161Y (en) * | 2001-10-31 | 2002-09-11 | 陈荐 | Ball Mill Multi-layer structure sound-proof shield |
| CN201000744Y (en) * | 2007-02-01 | 2008-01-02 | 江苏中能电力设备有限公司 | Sound arrester of large noise equipment |
| CN201707910U (en) * | 2010-04-02 | 2011-01-12 | 攀钢集团冶金工程技术有限公司 | Sound insulating hood |
| WO2013072629A1 (en) * | 2011-11-14 | 2013-05-23 | Centre D'etude Et De Recherche Pour L'automobile (Cera) | Thin acoustic protection device intended to be installed against a wall of an electric motor casing for a motor vehicle |
| CN103032379A (en) * | 2013-01-05 | 2013-04-10 | 华北电力大学（保定） | Low-noise centrifugal ventilator casing |
| CN103032381A (en) * | 2013-01-05 | 2013-04-10 | 华北电力大学（保定） | Enclosure for reducing noise of axial flow fan |
Non-Patent Citations (5)
| Title |
|---|
| 于英华等: "多孔泡沫铝性能研究现状及应用前景展望", 《辽宁工程技术大学学报》 * |
| 于英华等: "泡沫铝夹芯结构的研究现状及发展方向", 《机械工程师》 * |
| 于英华等: "泡沫铝层合结构钢球磨煤机隔声罩降噪性能研究", 《煤炭学报》 * |
| 余国军: "泡沫铝层合结构钢球磨煤机隔声罩研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
| 王益博: "泡沫铝层合结构钢球磨煤机筒体研究", 《辽宁工程技术大学硕士学位论文》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920568A (en) * | 2014-05-07 | 2014-07-16 | 苏州皇森机电科技有限公司 | Efficient muting ball mill |
| CN104001597A (en) * | 2014-05-26 | 2014-08-27 | 顾开明 | Novel lining plate structure of ball mill |
| CN104405113A (en) * | 2014-10-29 | 2015-03-11 | 成都科盛石油科技有限公司 | Low-noise cutting device |
| CN104405113B (en) * | 2014-10-29 | 2017-01-11 | 成都科盛石油科技有限公司 | Low-noise cutting device |
| CN106205586A (en) * | 2016-07-11 | 2016-12-07 | 武汉理工大学 | A kind of metal-based foam fills broad band low frequency gap elasticity Meta Materials |
| CN109967216A (en) * | 2019-04-02 | 2019-07-05 | 吴光明 | A kind of noise abatement method of cement plant grinding machine |
| CN110961202A (en) * | 2019-12-29 | 2020-04-07 | 王莉 | High-efficient ball mill is used in cement manufacture |
| CN110961202B (en) * | 2019-12-29 | 2021-06-15 | 沈阳山水工源水泥有限公司 | High-efficient ball mill is used in cement manufacture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103285979A (en) | Low-noise sound insulation sleeve for double-ended ball mill | |
| CN203444751U (en) | Ball mill roller damping composite sound absorption and insulation device | |
| CN102998124A (en) | NVH (noise, vibration and harshness) semi-anechoic room test system and method | |
| CN102251700B (en) | A kind of Mobile combination soundproof room | |
| CN103032381B (en) | For reducing the casing of noise of axial flow fan | |
| CN201915778U (en) | Glass window quick replacement structure used for excavator driving cab | |
| CN203778152U (en) | Low-noise double-ended ball mill sound insulation sleeve | |
| CN205779468U (en) | A kind of driftage main breaking zone device and wind-driven generator | |
| CN201249406Y (en) | Movable combined protective shield | |
| CN205009876U (en) | Wheel of making an uproar falls in train | |
| CN202064652U (en) | Mobile combination soundproof room | |
| CN201559796U (en) | False shaft member for shafting centering between the active apparatus and the passive apparatus | |
| KR101572019B1 (en) | Apparatus and method for crushing concrete structure repairing the bottom | |
| CN203577896U (en) | Combined device for processing noise of ball mill | |
| CN203734443U (en) | Vibration damping device | |
| CN208466710U (en) | A kind of pipeline Quick dredging equipment | |
| CN206015594U (en) | A kind of double roller combined type opens ice and avenges device and snow breaker | |
| CN210935211U (en) | Ball mill for finely processing solid materials | |
| CN202129124U (en) | Ball mill mineral-feeding eccentric pipe sealing device | |
| CN104943468A (en) | Noise-reduction train wheel | |
| CN203051232U (en) | Shell of low noise axial flow fan | |
| CN219472936U (en) | Hydraulic pipeline supporting device for hydraulic engineering | |
| CN103567849A (en) | Roller of spring surface polishing processor | |
| CN2510161Y (en) | Ball Mill Multi-layer structure sound-proof shield | |
| CN203355815U (en) | Grinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130911 |