CN203532744U - Sealing device of coal mill - Google Patents
Sealing device of coal mill Download PDFInfo
- Publication number
- CN203532744U CN203532744U CN201320733538.4U CN201320733538U CN203532744U CN 203532744 U CN203532744 U CN 203532744U CN 201320733538 U CN201320733538 U CN 201320733538U CN 203532744 U CN203532744 U CN 203532744U
- Authority
- CN
- China
- Prior art keywords
- slag
- base
- sealing
- yoke
- sealing device
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 59
- 239000003245 coal Substances 0.000 title claims abstract description 35
- 239000002893 slag Substances 0.000 claims abstract description 64
- 230000005540 biological transmission Effects 0.000 claims abstract description 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 230000000903 blocking effect Effects 0.000 claims abstract description 15
- 230000013011 mating Effects 0.000 claims 1
- 239000000565 sealant Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 9
- 108010063955 thrombin receptor peptide (42-47) Proteins 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- -1 electric power Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
本实用新型涉及一种磨煤机的密封装置，包括传动轭（1）、底座（2），传动轭（1）和底座（2）之间形成渣室（11），所述的底座（2）和传动轭（1）之间设置有与传动轭（1）配合的密封座（9），密封座（9）里设置有碳精环（10），所述的底座（2）和密封座（9）的顶部通过连接部（5）连接，所述的传动轭（1）和连接部（5）之间通过环形的挡渣板（6）将渣室（11）分隔。此装置便于拆卸更换碳精环，施工时间可以大幅度缩短，挡渣装置的设计增加了气体向渣室排出的阻力及含粉气体外泄阻力，且提高了密封室的密封程度。
The utility model relates to a sealing device of a coal mill, comprising a transmission yoke (1), a base (2), a slag chamber (11) is formed between the transmission yoke (1) and the base (2), and the base (2 ) and the drive yoke (1) are provided with a seal seat (9) that matches with the drive yoke (1), the seal seat (9) is provided with a carbon ring (10), the base (2) and the seal seat The top of (9) is connected by a connecting part (5), and the slag chamber (11) is separated by an annular slag retaining plate (6) between the transmission yoke (1) and the connecting part (5). This device is easy to disassemble and replace the carbon ring, and the construction time can be greatly shortened. The design of the slag blocking device increases the resistance of gas discharge to the slag chamber and the leakage resistance of powder-containing gas, and improves the sealing degree of the sealing chamber.
Description
Technical field
The utility model relates to a kind of seal arrangement of coal pulverizer, particularly the seal arrangement between a kind of roller ring mill transmission yoke and base.
Background technique
Coal pulverizer is the main Aided Machine that the fields such as cement, electric power, chemical industry are generally used, and for the preparation of raw material such as coal dust, stone flours, is used for combustion power generation, makes cement raw material etc.Whether the normal work of coal pulverizer, is directly connected to normally production and operation of enterprise.Roller ring mill is the at present domestic a kind of coal pulverizer generally using, and its distinguishing feature is stable, failure rate is low.
On roller ring mill, all comprise rotatable parts drive plate and base, be designed with grit chamber as the transition storage facilities of pebble coal between these two, relative movement between drive plate and base, is provided with matching gap between the two.In coal pulverizer running, in mill, be full of barotropic gas, containing dusty gas, easily from gap location, reveal severe contamination production environment.For addressing this problem, conventionally on base, design special seal arrangement.The most frequently used mode for increasing carbon ring sealing or sealing iron plate below seal arrangement, carbon dam sealing is arranged on carbon ring in seal ring, carbon gland is because gap cannot be adjusted, easily transmission shaft is caused to wearing and tearing, when coal pulverizer pebble coal amount increases or carbon pressurizing is aging, thereby the large particle that carbon ring is easily entered damage causes dust pollution.In addition, be subject to arranging in seal ring body the restriction of sealing, coal pulverizer all need to be disintegrated and could change carbon ring, the artificial and time cost that replacing carbon needs is too high.
Application number is that 201120277322.2 Chinese patent discloses a kind of sealing device of transmission shaft of medium speed coal mill, comprise drive plate, left side, described drive plate middle part is provided with outer slag blocking ring, the projection of the upper connecting ring of the recess of outer slag blocking ring and its below forms gap by screw-thread fit, upper connecting ring below is provided with lower connecting ring, and lower connecting ring is connected with the base of its left bottom, and lower connecting ring middle part is provided with air-flow path, air-flow path is connected with closed conduit, and closed conduit is connected with the female pipe of sealing air; Lower connecting ring right-hand member upside is provided with interior slag blocking ring; Lower connecting ring right-hand member downside is provided with seam, is provided with some seal rings in seam, and seal ring is connected with lower connecting ring by bolt, the side that seal ring contacts with drive plate is provided with carbon annular groove, in carbon annular groove, be provided with carbon ring, carbon ring left side is provided with spring groove, is provided with spring in spring groove; Outer slag blocking ring, upper connecting ring, lower connecting ring, seal ring and carbon ring form Seal cage.This device sealing effect is better, makes machine service life longer.
Model utility content
In order to realize the purpose of this utility model, the technological scheme of employing is:
A kind of seal arrangement of coal pulverizer, comprise transmission yoke, base, between transmission yoke and base, form grit chamber, between described base and transmission yoke, be provided with the sealing seat coordinating with transmission yoke, in sealing seat, be provided with carbon ring, it is characterized in that, described base is connected by joint with the top of sealing seat, between described transmission yoke and joint, by annular slag trap, grit chamber is separated.
Further, between described slag trap and joint, be provided with backing plate, described backing plate and joint fit together.
Further, the pushing off the slag piece of L-type is set between described slag trap and transmission yoke, the vertical edge of described L-type pushing off the slag piece is arranged between slag trap and transmission yoke, horizontal edge arranges the outside of slag blocking ring, and described transmission yoke, sealing seat, joint, backing plate, slag blocking ring and pushing off the slag piece form Yi Ge sealed chamber.
Further, T-shaped pushing off the slag piece is set between described slag trap and transmission yoke, the vertical edge of described T-shaped pushing off the slag piece is arranged between slag trap and transmission yoke, horizontal edge is arranged on the outside of slag blocking ring and transmission yoke, and described transmission yoke, sealing seat, joint, backing plate, slag blocking ring and pushing off the slag piece form Yi Ge sealed chamber.
Further, described joint and base weld together.
Further, on described joint and the surface of contact of base, be respectively arranged with cooperatively interact projection and recess, described joint and base are bolted.
Further, described sealing seat comprises at least one deck support ring, in described support ring, is provided with sealed groove, and described carbon ring arranges in sealed groove.
Further, described sealing seat is fixed itself and joint with bolt.
Further, in the sealed groove of described support ring, be provided with spring by carbon hoop on transmission yoke.
Further, between described support ring, with sealer, connect.
Below the technical solution of the utility model is made further explanation.
The seal arrangement of coal pulverizer described in the utility model is applicable to roll-type coal pulverizer, in order to improve the sealing effect between coal pulverizer base and transmission yoke, and reduction maintenance difficulty, sealing seat is arranged on outside coal pulverizer fuselage, such structure can directly be carried out the replacing of carbon ring in vitro, has reduced maintenance workload and has extended working life of machine.Seal arrangement described in the utility model comprises the transmission yoke being positioned under mill, and the base being connected with coal pulverizer barrel arranges sealing seat between base and transmission yoke, and for preventing leaking powder contaminated air between base and sealing seat, between arranges joint.
Joint described in the utility model can weld together with base, preferably, the surface of contact of joint and base is set to male and fomale(M&F), that is: on the surface of contact of joint, projection is set, the recess coordinating with joint projection is set on base, both connect with bolt, between base and joint, be arranged to male and fomale(M&F), sealing stroke is longer, has increased gas to the resistance of grit chamber's discharge and containing powder gas leak resistance, has reduced the pollution to atmosphere.
Slag trap described in the utility model is separated grit chamber, and slag trap can effectively stop entering in sealing seat containing powder gas that wind takes out of, affect the sealing effect of the interior carbon ring of sealing seat.Between described slag trap and joint, be provided with backing plate, described backing plate one end is connected with the bottom of slag trap, together with the other end fits tightly with joint.
Between slag trap described in the utility model and transmission yoke, be provided with pushing off the slag piece, for improving the sealing stroke of pushing off the slag piece to a wind, described pushing off the slag piece is L-type or T-shaped, and its vertical edge is arranged between transmission yoke and pushing off the slag change, and horizontal edge is in the outside of slag trap or transmission yoke.
Seal ring described in the utility model comprises several support rings, for guaranteeing the sealing effect between support ring, between support ring, with sealer, couple together, in each support ring, be provided with sealed groove, in sealed groove, be provided with carbon ring, be provided with and make the spring of carbon hoop on transmission yoke in sealed groove, carbon ring can float under the effect of spring in carbon annular groove, gauge wear can be by the effect of spring auto-compensation, guaranteed sealing effect, extended working life.
Accompanying drawing explanation
Fig. 1 is the mounting structure schematic diagram of seal arrangement and coal pulverizer in the utility model;
Fig. 2 is the structural representation of seal arrangement in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as to restriction of the present utility model.
As shown in Figure 1, a kind of seal arrangement of roll-type coal pulverizer, comprise and be arranged on the transmission yoke 1 of mill 3 bottoms, the base 2 being connected with coal pulverizer barrel 4, between transmission yoke 1 and base 2, form grit chamber 11, between base 2 and transmission yoke 1, be provided with the sealing seat 9 coordinating with transmission yoke 1,9 li of sealing seats are provided with carbon ring 10, and described base 2 is connected by joint 5 with the top of sealing seat 9, between described transmission yoke 1 and joint 5, by annular slag trap 6, grit chamber 11 are separated.Wherein, surface of contact between joint 5 and base 2 is male and fomale(M&F), that is: on the surface of contact of joint 5, projection is set, the recess coordinating with joint 5 projections is set on base 2, both connect with bolt, between base 2 and joint 5, being arranged to male and fomale(M&F), to make to seal stroke longer, increased gas to grit chamber 11 resistances of discharging and containing powder gas leak resistance.Between slag trap 6 and joint 5, be provided with backing plate 7, one end of described backing plate 7 is connected with the bottom of slag trap 6, together with the other end fits tightly with joint 5.For increasing the sealing stroke of 8 pairs of wind of pushing off the slag piece, further stop that a wind enters in the sealing air compartment 12 being comprised of transmission yoke 1, sealing seat 9, joint 5, backing plate 7, slag trap 6 and pushing off the slag piece 8, between slag trap 6 and transmission yoke 1, be provided with pushing off the slag piece 8, described pushing off the slag piece 8 is L-type or T-shaped.Its vertical edge is arranged between transmission yoke 1 and slag trap 6, and horizontal edge is arranged on the outside of slag trap 6 and transmission yoke 1.As shown in Figure 2, sealing seat 9 described in the present embodiment comprises three support rings that connect with sealer, from the bottom of support ring, the bottom that several bolts are arranged on joint 5 is set, in each support ring, be provided with sealed groove, in sealed groove, be provided with carbon ring 10, be provided with the spring that can wale carbon ring 10 in the inside of sealed groove, carbon ring 10 can float under the effect of spring in sealed groove, gauge wear can be by the effect of spring auto-compensation, guaranteed sealing effect.
Improved seal arrangement is convenient to dismounting, can realize external replacing carbon ring 10, does not need coal pulverizer to cool, do not need coal pulverizer to disintegrate, significantly shortened the engineering time, wind is blocked in the design of skimming device one time from source, makes it cannot enter sealing air compartment 12.And sealing air is sealed in sealing air compartment 12 by carbon ring 10, reduce the leakage of sealing air, improve the operational efficiency of enclosed air system, and guaranteed there will not be leakage powder air leakage phenomena, improved the working efficiency of coal pulverizer, the operating life that has extended machine.
Embodiment in above-described embodiment can further combine or replace; and embodiment is described preferred embodiment of the present utility model; not design of the present utility model and scope are limited; do not departing under the prerequisite of the utility model design philosophy; the various changes and modifications that in related domain, professional and technical personnel makes the technical solution of the utility model, all belong to protection domain of the present utility model.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733538.4U CN203532744U (en) | 2013-11-18 | 2013-11-18 | Sealing device of coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733538.4U CN203532744U (en) | 2013-11-18 | 2013-11-18 | Sealing device of coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532744U true CN203532744U (en) | 2014-04-09 |
Family
ID=50418955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320733538.4U Expired - Fee Related CN203532744U (en) | 2013-11-18 | 2013-11-18 | Sealing device of coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532744U (en) |
-
2013
- 2013-11-18 CN CN201320733538.4U patent/CN203532744U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202812245U (en) | Elastic gas sealing butterfly valve for waste heat power generation | |
| CN203518593U (en) | Sealing device of air bellow of integral sintering type ring cooler trolley | |
| CN202251971U (en) | Sealing device for door shaft of air door of air duct of thermal power plant | |
| CN201780000U (en) | Circular magnetic fluid sealing system of circular cooler | |
| CN203532744U (en) | Sealing device of coal mill | |
| CN201010322Y (en) | Turning valve used for conveying semi-finished product in suspending kiln | |
| CN206064592U (en) | A kind of medium-speed pulverizer support sealing device | |
| CN204420124U (en) | A kind of Novel vertical mill shaft of grinding roller bearing sealing device | |
| CN212055833U (en) | Cold quick-witted automatic compensation mechanical seal device of ring | |
| CN214171323U (en) | Novel coal mill sealing ring | |
| CN209839157U (en) | Drive disc seal | |
| CN203594801U (en) | Combined type sealing pneumatic door | |
| CN205715683U (en) | Medium-speed pulverizer drive plate floating seal | |
| CN203379962U (en) | Improved structure of grinding roller sealing frame | |
| CN202228686U (en) | Medium speed pulverizer transmission shaft sealing device | |
| CN211398895U (en) | Three-dimensional compensator with novel sealing structure | |
| CN203730954U (en) | Ball mill feeding seal device | |
| CN204025693U (en) | A kind of seal arrangement of medium-speed pulverizer pull bar | |
| CN206458821U (en) | A kind of medium-speed pulverizer lower frame sealing ring | |
| CN221800592U (en) | A floating sealing device for a vertical mill stretch rod | |
| CN207796385U (en) | Three-dimensional coal dust FlexbleJoint with sealing device | |
| CN222910765U (en) | A sealing device for a medium-speed grinding machine seat | |
| CN103575109B (en) | Lap-joint type sealing device between annular cooler trolley baffle and door-shaped sealing cover | |
| CN218523034U (en) | Medium speed pulverizer frame sealing device | |
| CN206813997U (en) | A kind of thermal power plant Hui Ku unloads grey termination rack |
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 |
Granted publication date: 20140409 Termination date: 20201118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |