CN203373363U

CN203373363U - Steam-traced sealing ring for sealing valve of parallel-tank furnace roof equipment

Info

Publication number: CN203373363U
Application number: CN201320410172.7U
Authority: CN
Inventors: 祁士明; 陆建东; 闻海涛; 奚先华
Original assignee: Jiangsu Yonggang Group Co Ltd
Current assignee: Jiangsu Yonggang Group Co Ltd
Priority date: 2013-07-11
Filing date: 2013-07-11
Publication date: 2014-01-01
Anticipated expiration: 2023-07-11

Abstract

The utility model relates to a steam-traced sealing ring for a sealing valve of parallel-tank furnace roof equipment. The sealing ring comprises a seal ring, wherein the seal ring is provided with a passage structure formed by annular grooves, and two parallel steel tubes are inserted in the seal ring. According to the sealing ring, the structure is simple, the cost is low, the use is convenient, and the sealing efficiency is high, so that the sealing ring can be better popularized.

Description

A kind of and pot type furnace top equipment seal valve steam tracing wear ring

Technical field

The utility model relates to a kind of wear ring, and especially a kind of steam heating that adopts is used for the also wear ring of the upper and lower seal valve of pot type furnace top equipment.

Background technology

For the blast furnace of iron work, select and the pot type furnace top equipment, the blast furnace crude fuel is distributed into crude fuel in blast furnace by batch can from hopper.Wherein need close lower sealing valve during the batch can material feeding, open pressure equalizing blow off valve and upper sealing valve, batch can as poorly sealed as lower sealing valve can't normally material feeding, and also has coal gas and gush out.Need close upper sealing valve during the batch can blowing, open equalizing valve and lower sealing valve, as poorly sealed as upper sealing valve, the batch can internal pressure affects the normal cloth of blast furnace lower than blast furnace top pressure, and blast furnace often occurs due to upper, the poorly sealed normal material loading of blast furnace that affects of lower sealing valve, and the pot type furnace top equipment flows away to becoming the S type because of material, the material Flow Velocity is gone here and there pan furnace top equipment slowly relatively and material is easily put unclean, in the prior art due to upper, the lower sealing valve wear ring is divided between internal sealed ring and outer seal ring the gap that the 3mm left and right is arranged, when seal valve is closed, material easily is stuck in gap, wear ring has ash to be bonded in trim simultaneously, cause, the poorly sealed gas leakage of lower sealing valve, affecting blast furnace normally produces.

At present, the seal ring trim is that reference plane welds together internal sealed ring end part seal face in addition, cancel gap between the outer seal ring of internal sealed ring, make former sealing upper thread contact into the face contact, prevent because getting stuck poorly sealed, and seal ring adopts steam heating, prevent trim ash bonding, so flexibly, design cleverly is not seen in report.

The utility model content

The purpose of this utility model is: for gapped between existing internal sealed ring and outer seal ring, when seal valve is closed, material easily is stuck in gap, the trim of the wear ring dust that easily bonds simultaneously, cause the poorly sealed gas leakage of upper and lower seal valve, affect the normal shortcoming of producing of blast furnace, a kind of new also upper and lower seal valve of pot type furnace top equipment steam tracing wear ring is provided.

The purpose of this utility model is achieved in that provides a kind of and pot type furnace top equipment seal valve steam tracing wear ring, comprises seal ring, and described seal ring has the channel architecture consisted of ring groove,, insert two steel pipes that parallel in described trim.

In the utility model: the seal ring type of heating adopts steam heating, and described steel pipe is the DN15mm steel pipe, conduct advance steam port another as going out steam port.

The invention has the advantages that: because seal ring is the structure of the inner one-tenth of ring groove passage, cancelled the gap between former inside and outside seal ring, made former sealing upper thread contact into the face contact, prevented from causing because getting stuck poorly sealed; Steel pipe adopts steam heating, inserts two steel pipe one-in-and-one-outs on seal ring and passes into steam, makes the trim of wear ring remain certain temperature, avoids moist and enters charging binding on wear ring; The utility model is simple in structure, cost is low, easy to use, leakage efficiency is high, can better be promoted.

The accompanying drawing explanation

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the structure for amplifying schematic diagram of the local A of the utility model;

Fig. 3 is sectional view of the present utility model;

1, seal ring, 2, advance steam port, 3, go out steam port.

Embodiment

Accompanying drawing discloses the concrete structure of a kind of embodiment that the utility model relates to without limitation, below in conjunction with accompanying drawing, the utility model is further described.

As seen from Figure 1, the utility model comprises seal ring 1, and seal ring 1 has the channel architecture consisted of ring groove, inserts two steel pipes that parallel as advancing steam port 2 and going out steam port 3 on seal ring 1.

In the present embodiment, seal ring 1 type of heating adopts steam heating, and advancing steam port 2 is the DN15mm steel pipe with the steel pipe that goes out steam port 3.

During actual the use, when closing, seal valve become the whole material of channel architecture to be not easy to be stuck in gap because 1 one-tenth ring groove of seal ring is inner, by the past interior injecting steam of seal ring 1 of steel pipe, one-in-and-one-out passes into steam, make the trim of seal ring remain certain temperature, avoid moist and enter charging binding on wear ring.

In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims

1. and pot type furnace top equipment seal valve steam tracing wear ring, comprise seal ring, it is characterized in that: described seal ring has the channel architecture consisted of ring groove, two steel pipes that parallel of insertion in described seal ring.

2. according to claim 1 and pot type furnace top equipment seal valve steam tracing wear ring, it is characterized in that: described steel pipe is the DN15mm steel pipe, conduct advance steam port another as going out steam port.