CN201257431Y - Dynamic and static combined rotary separator and sealing ring - Google Patents
Dynamic and static combined rotary separator and sealing ring Download PDFInfo
- Publication number
- CN201257431Y CN201257431Y CNU2008201230049U CN200820123004U CN201257431Y CN 201257431 Y CN201257431 Y CN 201257431Y CN U2008201230049 U CNU2008201230049 U CN U2008201230049U CN 200820123004 U CN200820123004 U CN 200820123004U CN 201257431 Y CN201257431 Y CN 201257431Y
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- sealing ring
- seal ring
- rotary separator
- dehisces
- ring
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Abstract
The utility model relates to a movable and static combined rotary separator. An inner-opening VD-shaped seal ring is arranged in a rotating gap between a turntable and the upper part of a reduction gearbox of the separator, and the inside diameter side height of the seal ring is larger than the outside diameter side height of the seal ring; an inward opening is arranged on the boarder of the seal ring, a cambered root groove is arranged at the inner side root of the boarder opening, and an outer-opening VD-shaped seal ring is arranged at the outer side of the inner-opening VD-shaped seal ring so as to form a bidirectionally combined VD-shaped seal ring; a compensatory carbon seal ring is arranged in the rotating gap between the turntable and an upper cover of the reduction gearbox of the separator, and the bidirectionally combined VD-shaped seal ring is arranged in the rotating gap between the turntable and the upper part of the reduction gearbox of the separator; an upper air seal ring is arranged in a gap between the top plate inner wall of a distributor box and the turntable, and a lower air seal ring is arranged in a gap between a movable blade group support and a coal-falling tube. In the inner-opening VD-shaped seal ring, the inside diameter side height of the seal ring is larger than the outside diameter side height of the seal ring, the inward opening is arranged on the boarder of the seal ring, and the cambered root groove is arranged at the inner side root of the boarder opening.
Description
Technical field
The utility model relates to separator, relates more specifically to sound combination rotary separator and employed sealing ring thereof.
Background technology
Sound combination rotary separator is used for isolating the qualified coal dust of fineness of pulverized coal from the coal dust that coal pulverizer is milled out.Coal is delivered to the district that mills of coal pulverizer by coal spout.Rotor and the stator blade of taking back coal dust (guiding shutter) coaxial with it that sound combination rotary separator is made up of vertical moving vane are formed.Variable-frequency motor is by a pair of reduction gearing in the shaft coupling drive reduction box, then by the rotation of hollow rotating shaft impeller.Hot blast of coal pulverizer inlet blows afloat coal dust on the coal pulverizer mill by the swivel nozzle ring, coal dust rises at the casing inside spin, form ring rotation gas powder stream, after vertical current is crossed the gravity separation district, radial inflow is arranged vertically the stator blade (shutter) of guiding, coarse granule is tangential along the moving vane that rotates, separates under movable vane wheel centrifugal action and overflows.Isolated thicker coal dust particle is returned in the coal pulverizer and is ground, and the movable vane wheel that fine grained enters rotation enters meal outlet through the expanding type distributor box again.The blast of the sealing wind that is blown into is higher than hot blast of coal pulverizer, continues downwards to flow out, and prevents to scurry on the coal dust to enter in the reduction box.
Because between each spinner member, for example between hollow rotating shaft and the coal spout, between reduction box loam cake and the rotating disk, all there is the gap between rotating disk and the deceleration box and between shaft coupling and the reduction box loam cake etc., coal dust may enter the work that influences separator in the reduction box by each gap, so the sealing system of sound combination rotary separator is the key assurance of its reliability service.But at present, coal pulverizer sound combination rotary separator both domestic and external does not mostly solve the sealing problem of sound combination rotary separator well.Stator blade, the moving vane that a hot blast that enters coal pulverizer is brought coal dust in sound combination rotary separator carries out coal dust when separating, the part coal dust also enters the separator reduction box by each gap, cause the running clearance of rolling bearing to block, pollution lubricating oil, make the movable vane wheel stall that is supported on the rolling bearing, can not carry out the mask work of coal dust.Usually adopt the method that feeds sealing wind in the gap between coal spout and hollow rotating shaft to prevent to scurry on the coal dust.If increase the sealing air quantity, wind of sealing blast system is up scurried, prevent that coal dust from entering reduction box.But shown in Fig. 3 a, V dehisces outward
DOutwards dehisce in the lip limit of shape sealing ring (JB/T6994-1993), the direction of its wind of dehiscing to seal dorsad, and therefore excessive sealing wind can be by the V that dehisces outward
DThe balance pore of shape sealing ring and gear box cover enters in the reduction box, scrapes and blows stirring lubricating oil, causes leakage, and the lubricating oil that has enters in the motor, causes motor to damage.Therefore the problem of sealing system can cause the running part of sound combination rotary separator to damage, and influences the making of coal pulverizer coal dust, causes stopping accident.Have to remove sound combination rotary separator at last, change the static separation device.
The utility model content
Therefore, the purpose of the utility model patent is to provide a kind of sound combination rotary separator of effective sealing.
For achieving the above object, the technical solution of the utility model specifically is achieved in that
A kind of sound combination rotary separator, V dehisces in the running clearance place, top of the rotating disk of separator and reduction box has
DThe shape sealing ring, wherein, the internal side diameter height of described sealing ring is greater than the outside diameter height, and inwardly dehisce in the lip limit of described sealing ring, and the inboard root of dehiscing in the lip limit has a circular arc root groove.
V dehisces in described
DThe shape sealing ring outside has the outer V that dehisces
DThe shape sealing ring, the V of formation bi-directional combination
DThe shape sealing ring.
Running clearance place between the rotating disk of described sound combination rotary separator and the loam cake of reduction box has the compensation sealing ring of carbon ring.
The V that the rotating disk of described sound combination rotary separator and the running clearance place, top of reduction box have described bi-directional combination
DThe shape sealing ring.
Has labyrinth sealing between described reduction box and the rotating shaft.
The top board inwall and the gap location between the rotating shaft of distributor box have last sealing gland ring, and the gap location between moving vane pack support and the coal spout has therapeutic method to keep the adverse qi flowing downward seal ring.
Described sound combination rotary separator comprises that further inside has the soaker of multilayer baffle maze and filter screen.
Described sound combination rotary separator further comprises explosion-proof jet chimney.
V dehisces in a kind of
DShape sealing ring, the internal side diameter height of described sealing ring are greater than the outside diameter height, inwardly dehisce in the lip limit of described sealing ring, and the inboard root of dehiscing in the lip limit has a circular arc root groove.
By said structure as can be known, the utility model seals reliably to oily side, gas side, powder side respectively, prevents that effectively oil, powder, three kinds of materials of gas from interfering with each other the unsafe factor that causes, has improved reliability, the security of work.
Description of drawings
Fig. 1 is the structure chart according to combination rotary separator of the present utility model.
Fig. 2 is the zoomed-in view of I part among Fig. 1.
Fig. 3 a is according to bi-directional combination V of the present utility model
DThe outer V that dehisces of shape sealing ring
DThe structure chart of shape sealing ring.
Fig. 3 b is according to bi-directional combination V of the present utility model
DV dehisces in the shape sealing ring
DThe structure chart of shape sealing ring.
Fig. 3 c is according to bi-directional combination V of the present utility model
DThe shape sealing ring is in the structure chart of free state and user mode.
Fig. 4 is the structure chart according to the soaker of combination rotary separator of the present utility model.
Fig. 5 a is the structure chart according to the fan-shaped segmental arc of the carbon ring of combination rotary separator of the present utility model.
Fig. 5 b is the sectional view of being got along the line A-A among Fig. 5 a according to the fan-shaped segmental arc of the carbon ring of combination rotary separator of the present utility model.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
Basic thought of the present utility model provides a kind of sound combination rotary separator, its sealing system can seal oily side, gas side, powder side respectively reliably, effectively prevent the damage that oil, gas, three kinds of materials of powder make up the running part of rotary separator to sound, improve the functional reliability of sound combination rotary separator.The V that dehisces in a kind of also is provided
DThe shape sealing ring, it can carry out effective seal to the gas side.
Fig. 1 is the structure chart according to sound combination rotary separator of the present utility model.As shown in Figure 1, by coal spout 1 coal is delivered to the district 16 that mills of coal pulverizer.Rotor and the stator blade of taking back coal dust 3 (guiding shutter) coaxial with it that sound combination rotary separator is made up of vertical moving vane 2 are formed.Variable-frequency motor 4 is by a pair of reduction gearing in the shaft coupling drive reduction box 5, then by the rotation of hollow rotating shaft 6 impeller.Hot blast of coal pulverizer inlet blows afloat coal dust on the coal pulverizer mill by the swivel nozzle ring, coal dust rises at the casing inside spin, form ring rotation gas powder stream, after vertical current is crossed the gravity separation district, radial inflow is arranged vertically the stator blade 3 (shutter) of guiding, coarse granule is tangential along the moving vane 2 that rotates, separates under movable vane wheel centrifugal action and overflows.Isolated thicker coal dust particle is returned in the coal pulverizer and is ground, and the movable vane wheel 2 that fine grained enters rotation enters meal outlet through expanding type distributor box 7 again.The blast of the sealing wind that is blown into is higher than hot blast of coal pulverizer, continues downwards to flow out, and prevents to scurry on the coal dust to enter in the reduction box 5.
Because the reduction box center of sound combination rotary separator is passed in the requirement of coal pulverizer coal supply system, coal spout 1, straight Nian Mei district 16 coal supplies down to coal pulverizer.There is the gap between coal spout and each spinner member.Therefore, at the support of moving vane group 2 and the gap location between the coal spout 1 therapeutic method to keep the adverse qi flowing downward seal ring 10 is set, at the top board inwall of distributor box 7 and the gap location between the hollow rotating shaft 6 sealing gland ring 9 is set, can prevents that a large amount of coal dusts from entering reduction box 5 by the gap between coal spout 1 and the tumbler.Simultaneously, pass to sealing wind in the gap between coal spout 1 and hollow rotating shaft 6, the blast that seals wind is higher than hot blast of coal pulverizer, and the sealing wind direction continues down to flow out, and scurries in the fuel tank that enters reduction box 5 on the coal dust of distinguishing that prevents to mill.Install control dish valve on the sealing air pipe road additional, adjust the aperture of dish valve and can control the air quantity size.In addition, between the external diameter of the internal diameter of last sealing gland ring 9 and hollow rotating shaft 6, and have little gap between the external diameter of the internal diameter of therapeutic method to keep the adverse qi flowing downward seal ring 10 and coal spout 1, this can guarantee the running of tumbler and make in the sealing wind chamber that constant air quantity, blast are arranged.Combination by sealing wind and upper and lower sealing gland ring has realized the sealing to the powder side effectively.
Shown in the zoomed-in view of Fig. 2, between rotating disk 8 and reduction box loam cake 11, have running clearance, sealing wind can enter in the reduction box 5 by this gap, and therefore, the space between rotating disk 8 tops and reduction box loam cake 11 is provided with the compensation sealing ring 14 of carbon ring.Every secondary carbon ring 14 has 12 fan-shaped segmental arc 14a, and Fig. 5 a is the structure chart of fan-shaped segmental arc 14a.Fig. 5 b is the sectional view that fan-shaped segmental arc is got along the line A-A among Fig. 5 a, and shown in Fig. 5 b, every fan-shaped segmental arc 14a has the groove 14b at middle part, wherein accommodates circumferential tensioning spring, and circumferentially tensioning spring makes carbon ring 14 hold the outer radius of rotating disk 8 tightly.Owing to adopt no gap to contact Compensation Design between carbon ring 14 and the rotating disk 8, so prevent the fuel tank that gas and powder from grinder enter reduction box 5 effectively.Even gas and powder have passed through carbon ring 14, also must decay in large quantities.
The fuel tank that enters reduction box 5 for gas and the powder that prevents effectively from grinder, at the running clearance place, top of reduction box 5 and rotating disk 8, i.e. gap location between reduction box loam cake 11 and the rotating disk 8 is provided with the V of bi-directional combination
DShape sealing ring 15.The V of bi-directional combination
DShape sealing ring 15 is by the outer V of dehiscing that is positioned at the outside
DShape sealing ring 15a and the V that dehisces that is positioned at the inboard
D Shape sealing ring 15b forms.Wherein, V dehisces in
DThe internal side diameter of shape sealing ring 15b is against the rotating disk external diameter, and the V that dehisces outward
DThe dome platform of the internal side diameter of shape sealing ring on the rotating disk 8.Fig. 3 a and Fig. 3 b are respectively according to bi-directional combination V of the present utility model
DThe outer V that dehisces of shape sealing ring
DThe shape sealing ring and in the V that dehisces
DThe structure chart of shape sealing ring.Shown in Fig. 3 a and Fig. 3 b, V dehisces in of the present utility model
D Shape sealing ring 15b and traditional outer V that dehisces
DThe difference of shape sealing ring 15a is that its internal side diameter height is greater than the outside diameter height, and this low inside and high outside structure can guarantee the V that dehisces in this
D Shape sealing ring 15b stably be sleeved on the location inner ring external diameter on and do not overturn.In the V that dehisces
DIt is the circular arc root groove of 1.5mm that the inboard root in the lip limit that the shape sealing ring is dehisced has the degree of depth, and outside root has the concave arc of R2, inner edge angle 60 degree on lip limit, and outside, lip limit angle 53.3 degree, this structural design makes the lip limit have certain elasticity recovery and is not easy to fracture.Fig. 3 c is according to bi-directional combination V of the present utility model
DThe shape sealing ring is in the structure chart of free state and user mode.Shown in Fig. 3 c, since in dehisce the free height of sealing ring 15b greater than the height of installing space, the lip limit of dehiscing after the installation moves down, i.e. the state of 15b ' among Fig. 3 c, the elasticity recovery power on lip limit makes the lip limit of dehiscing be attached to sealed lower surface all the time, thereby realizes the sealing of tumbler.Since in the V that dehisces
DMeet to the sealing wind direction that enters by the gap on the lip limit of shape sealing ring 15b, under the sealing wind action, in the V that dehisces
DThe lip limit of shape sealing ring 15b can be adjacent to sealed lower surface more, therefore can realize the sealing good to the gas side.
In rotating rotation, V
DThe shape sealing ring is very serious with the fretting wear at the position that contacts, and may wear to a certain degree and just may leak, and this is harmful to operation.Therefore, in order to improve its wearability, use the hydrogenation rubber (HNBR) of fixing one's eyes upon to make this V
DThe shape sealing ring.
The hydrogenation nitrile rubber not only possesses oil resistant and heat-resisting performance, compares with traditional nitrile rubber also to possess higher pull and stretch intensity and wearability.The hydrogenation nitrile rubber is compared with traditional nitrile rubber (NBR), contain on a small quantity in its molecular structure or carbon-carbon double bonds (C=C) not, it not only has the oil resistant of NBR, performance such as wear-resisting, low temperature resistant, but also have more excellent heat oxygen aging resistance, anti-ozone, resistant to chemical media, good dynamic characteristics etc., be have most at present development potentiality one of rubber clone, replaced other specific rubbers such as fluorubber in many aspects.HNBR also has good anti-ozone, Weather-resistant, chemical resistance, and good compression set performance of tool and swelling behavior.The HNBR anti-wear performance is superior, and this is to amass owing to HNBR has very high stretching, and stretch long-pending and abrasion resistance index direct ratio, so HNBR is good abrasive rubber material.
In addition, in order to prevent that sealing wind enters reduction box 5 from the gap between reduction box bottom and the hollow rotating shaft 6, the V of bi-directional combination can be set at the running clearance place, bottom of reduction box 5 and rotating disk 8
DShape sealing ring 15.V
DThe lip limit of shape sealing ring attaches the lower surface of rotating disk.And can on the contact-making surface of the internal stent of reduction box 5 and hollow rotating shaft 6, labyrinth sealing be set, with the sealing of further reinforcement to the gas side.
If just in case there is gas (promptly sealing wind) to enter in the fuel tank, become pressure-fired in the fuel tank, the oil that air-blowing must be stirred is seen seam and is gone out, and causes leakage, and therefore the hold concurrently soaker 12 of oil strain of a kind of exhaust is set.Soaker 12 be arranged on reduction box 5 on cover.As shown in Figure 4, has the tortuous baffle plate 12a of the horizontal labyrinth type of multilayer in the vertical part of soaker 12 lower floors, be 12 layers of baffle plate in the present embodiment, the upper strata of soaker 12 has vertical labyrinth type annular ring 12b, reflux when oil impinges upon the labyrinth baffle plate or enclose upward, the middle level also has the multistorey strainer mesh 12c of household cooker hood formula, when G﹠O two-phase material passes through, gas can be drained, and oil then adheres to filter screen 12c and goes up backflow.The top of the vertical labyrinth type annular ring in upper strata also can have one deck fine mesh filter screen 12d, and top cover 12e pushes down this fine mesh filter screen 12d, and the oil that leaks filter hits the inner surface at top cover 12e, falls back on the pallet 12f, returns by spill port.Make oil leave with rage and return, make and can not form malleation in the fuel tank.
For safe operation, rotary separator also is provided with explosion-proof gas piping 13, opens or the stopping time passes to nitrogen or explosion-proof steam at coal pulverizer, rotary separator.
By the above embodiments as seen, combination rotary separator of the present utility model seals reliably to oily side, gas side, powder side respectively, prevents that effectively oil, powder, three kinds of materials of gas from interfering with each other the unsafe factor that causes.Improved reliability, the security of work, there has been profound significance in China in the energy, chemical industry, cement, efficient, the energy-conservation sound Studies of Packaged Rotary Seper ators of metallurgy industry popularization.
Claims (9)
1, a kind of sound combination rotary separator is characterized in that V dehisces in the running clearance place, top of the rotating disk of separator and reduction box has
DThe shape sealing ring, wherein, the internal side diameter height of described sealing ring is greater than the outside diameter height, and inwardly dehisce in the lip limit of described sealing ring, and the inboard root of dehiscing in the lip limit has a circular arc root groove.
2, sound according to claim 1 combination rotary separator is characterized in that, V dehisces in described
DThe shape sealing ring outside has the outer V that dehisces
DThe shape sealing ring, the V of formation bi-directional combination
DThe shape sealing ring.
3, sound combination rotary separator according to claim 2 is characterized in that, the running clearance place between the rotating disk of described sound combination rotary separator and the loam cake of reduction box has the compensation sealing ring of carbon ring.
4, sound combination rotary separator according to claim 3 is characterized in that, the V that the rotating disk of described sound combination rotary separator and the running clearance place, top of reduction box have described bi-directional combination
DThe shape sealing ring.
5, sound combination rotary separator according to claim 3 is characterized in that having labyrinth sealing between described reduction box and the rotating shaft.
6, according to the described sound combination of arbitrary claim among claim 1-5 rotary separator, it is characterized in that the upper wall of distributor box and the gap location between the rotating shaft have last sealing gland ring, the gap location between moving vane pack support and the coal spout has therapeutic method to keep the adverse qi flowing downward seal ring.
7, sound combination rotary separator according to claim 6 is characterized in that, comprises that further inside has the soaker of multilayer baffle maze and filter screen.
8, sound combination rotary separator according to claim 7 is characterized in that, further comprises explosion-proof jet chimney.
9, V dehisces in a kind of
DThe shape sealing ring is characterized in that, the internal side diameter height of described sealing ring is greater than the outside diameter height, inwardly dehisces in the lip limit of described sealing ring, and the inboard root of dehiscing in the lip limit has a circular arc root groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201230049U CN201257431Y (en) | 2008-10-10 | 2008-10-10 | Dynamic and static combined rotary separator and sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201230049U CN201257431Y (en) | 2008-10-10 | 2008-10-10 | Dynamic and static combined rotary separator and sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201257431Y true CN201257431Y (en) | 2009-06-17 |
Family
ID=40771661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201230049U Expired - Lifetime CN201257431Y (en) | 2008-10-10 | 2008-10-10 | Dynamic and static combined rotary separator and sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201257431Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749719A (en) * | 2010-02-10 | 2010-06-23 | 无锡华光锅炉股份有限公司 | Sealing device between boiler connecting rod and air chamber |
| CN114392922A (en) * | 2022-02-28 | 2022-04-26 | 北京电力设备总厂有限公司 | Novel belt-driven pulverized coal separator and using method thereof |
-
2008
- 2008-10-10 CN CNU2008201230049U patent/CN201257431Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749719A (en) * | 2010-02-10 | 2010-06-23 | 无锡华光锅炉股份有限公司 | Sealing device between boiler connecting rod and air chamber |
| CN114392922A (en) * | 2022-02-28 | 2022-04-26 | 北京电力设备总厂有限公司 | Novel belt-driven pulverized coal separator and using method thereof |
| CN114392922B (en) * | 2022-02-28 | 2024-03-01 | 北京电力设备总厂有限公司 | Novel belt-driven pulverized coal separator and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102401 Beijing City, Fangshan District Liangxiang Haotian Street No. 12 Patentee after: Co., Ltd of Beijing Electrical Equipment Factory Address before: 102401 Beijing City, Fangshan District Liangxiang Haotian Street No. 12 Patentee before: Beijing Electric Power Equipment General Factory |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090617 |
|
| CX01 | Expiry of patent term |