CN202143857U - Coal pulverizer base sealing device - Google Patents

Coal pulverizer base sealing device Download PDF

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Publication number
CN202143857U
CN202143857U CN201120158832U CN201120158832U CN202143857U CN 202143857 U CN202143857 U CN 202143857U CN 201120158832 U CN201120158832 U CN 201120158832U CN 201120158832 U CN201120158832 U CN 201120158832U CN 202143857 U CN202143857 U CN 202143857U
Authority
CN
China
Prior art keywords
coal pulverizer
sealing device
static seal
rubber strip
movable sealing
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 - Lifetime
Application number
CN201120158832U
Other languages
Chinese (zh)
Inventor
张东
张传房
Original Assignee
张东
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 张东 filed Critical 张东
Priority to CN201120158832U priority Critical patent/CN202143857U/en
Application granted granted Critical
Publication of CN202143857U publication Critical patent/CN202143857U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a device for preventing a spindle on a coal pulverizer base from powder leakage, particularly to a coal pulverizer base sealing device. The coal pulverizer base sealing device is characterized by comprising a dynamic seal, and a static seal mounted on the lower side of a housing, wherein a wear-resistant rubber strip is embedded in the static seal; a tension spring for keeping the rubber strip to be clung to a rotating shaft is arranged on the outer side of the rubber strip, and the end surface of the lower part of the static seal is a self-lubricating surface; the dynamic seal is fixed to the outer side of the rotating shaft through a bolt; and a wear compensation spring is embedded at the upper part of the dynamic seal, and a carbon ring is arranged at the upper part of the spring. Therefore, the coal pulverizer base sealing device has a good sealing effect and can prevent powder coal leakage during rotation.

Description

A kind of coal pulverizer pedestal sealing device
(1) technical field
The utility model relates to a kind of coal pulverizer pedestal main shaft that prevents and leaks the device of powder, particularly a kind of coal pulverizer pedestal sealing device.
(2) background technology
Now the coal pulverizer support main shaft place powder phenomenon of leaking out is more, the dust pollution of leakage environment, bigger leakage also causes coal pulverizer to be buried by dust, has to stop the mill processing.Existing sealing device is axial seals such as copper sheet, carbon ring or abrasive rubber mostly, and carbon ring etc. are centered around on the main shaft by spring tension, and the gap of carbon ring and main shaft can not get compensating during wearing and tearing, can cause dust coal dust etc. to leak in a large number.After the seal failure, dust from flying, sealing wind leaks, and has not only polluted environment, has also wasted the sealing air quantity and has caused energy waste.Ordinary life can repeat again to leak also with regard to about half a year after more renewing carbon ring, is badly in need of solving.
(3) summary of the invention
The utility model is in order to remedy the deficiency of prior art, a kind of simple in structure, good airproof performance is provided, the coal pulverizer pedestal sealing device of wear-compensating is arranged.
The utility model is realized through following technical scheme:
A kind of coal pulverizer pedestal sealing device is characterized in that: comprise movable sealing, be installed in the static seal of casing downside, said static seal inside is inlaid with wear-resisting rubber strip; Said rubber strip arranged outside has the extension spring that keeps rubber strip to be close to rotating shaft, and the static seal lower end surface is a self-lubricating surface; Said movable sealing is through being bolted to the rotating shaft outside; Said movable sealing top is inlaid with the spring of wear-compensating, and spring top is provided with carbon ring.
The carriage of fixedly movable sealing is established in said movable sealing bottom.
The beneficial effect of the utility model is: good sealing effect, and long service life, movable sealing and static seal replenish each other.Static seal can stop the damage of bulk particle to movable sealing; Movable sealing is self-lubricating floating seal radially, can adapt to the eccentric and vibration of swing of main shaft, and the sealing surface of movable sealing and static seal is fitted fully; Can compensate automatically after the wearing and tearing, prolong the service life and the cycle of operation effectively.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing 1 is the structural representation of the utility model;
Among the figure, 1 movable sealing, 2 casings, 3 static seals, 4 rubber strips, 5 rotating shafts, 6 extension springs, 7 springs, 8 carbon rings.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the utility model.This embodiment comprises movable sealing 1, is installed in the static seal 3 of casing 2 downsides, and said static seal 3 inside are inlaid with wear-resisting rubber strip 4; Said rubber strip 4 arranged outside have the extension spring 6 that keeps rubber strip 4 to be close to rotating shaft 5, and static seal 3 lower end surface are self-lubricating surface; Said movable sealing 1 is through being bolted to rotating shaft 5 outsides; Said movable sealing 1 top is inlaid with the spring 7 of wear-compensating, and spring 7 tops are provided with carbon ring 8; The carriage of fixedly movable sealing 1 is established in said movable sealing 1 bottom.
Adopt the coal pulverizer pedestal sealing device of the utility model; Rotating shaft 5 is rotated and is being driven movable sealing 1 together with carbon ring 8 rotations, and movable sealing 1 is fitted with static seal 3 contact-making surfaces fully, when movable sealing 1 is rotated; Static seal 3 can have certain wearing and tearing to carbon ring 8; Wearing and tearing spring 7 can play the effect of compensation carbon ring 8, can not produce slit, good sealing effect between static seal 3 and the movable sealing 1; The utility model also can be embedded in static seal 3 bottoms with the carbon ring 8 of band spring 7 compensation, and movable sealing 1 upper surface is set to self-lubricating surface.

Claims (2)

1. coal pulverizer pedestal sealing device is characterized in that: comprise movable sealing (1), be installed in the static seal (3) of casing (2) downside, said static seal (3) inside is inlaid with wear-resisting rubber strip (4); Said rubber strip (4) arranged outside has maintenance rubber strip (4) to be close to the extension spring (6) of rotating shaft (5), and static seal (3) lower end surface is a self-lubricating surface; Said movable sealing (1) is through being bolted to rotating shaft (5) outside; Said movable sealing (1) top is inlaid with the spring (7) of wear-compensating, and spring (7) top is provided with carbon ring (8).
2. coal pulverizer pedestal sealing device according to claim 1 is characterized in that: the carriage of fixedly movable sealing (1) is established in said movable sealing (1) bottom.
CN201120158832U 2011-05-18 2011-05-18 Coal pulverizer base sealing device Expired - Lifetime CN202143857U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120158832U CN202143857U (en) 2011-05-18 2011-05-18 Coal pulverizer base sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120158832U CN202143857U (en) 2011-05-18 2011-05-18 Coal pulverizer base sealing device

Publications (1)

Publication Number Publication Date
CN202143857U true CN202143857U (en) 2012-02-15

Family

ID=45579794

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120158832U Expired - Lifetime CN202143857U (en) 2011-05-18 2011-05-18 Coal pulverizer base sealing device

Country Status (1)

Country Link
CN (1) CN202143857U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20120215