CN202226868U - Pressure equalizing and discharging valve group at furnace top of serial-tank blast furnace - Google Patents
Pressure equalizing and discharging valve group at furnace top of serial-tank blast furnace Download PDFInfo
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- CN202226868U CN202226868U CN2011203656527U CN201120365652U CN202226868U CN 202226868 U CN202226868 U CN 202226868U CN 2011203656527 U CN2011203656527 U CN 2011203656527U CN 201120365652 U CN201120365652 U CN 201120365652U CN 202226868 U CN202226868 U CN 202226868U
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- valve
- pressure
- blast furnace
- pipeline
- pressure equalizing
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Abstract
A pressure equalizing and discharging valve group at the furnace top of a serial-tank blast furnace is provided. Two valve groups are installed in a parallel connection mode and then connected with a dust remover and a blast furnace material tank, one valve group is a pressure equalizing valve pipeline, and the other valve group is a pressure discharging valve pipeline. Two same valves installed in a parallel connection mode are installed on each valve pipeline group, the other end of the pressure equalizing valve pipeline is connected with a clean coal gas or half-clean coal gas pipe, and the other end of the pressure discharging valve pipeline is connected with a pressure discharging silencer. The pressure equalizing and discharging valve group at the furnace top of the serial-tank blast furnace is characterized in that after being in sequential serial connection with a blow down valve (3) branch, a blind plate valve (4) and a butterfly valve (5), the front of a valve (1) and a valve (2) of a pressure equalizing valve (1) and a pressure equalizing valve (2) in the pressure equalizing valve pipeline is in parallel connection into the clean coal gas or half-clean coal gas pipe, wherein the pressure equalizing valve (1) and the pressure equalizing valve (2) are in parallel connection. After being in sequential serial connection with a blind plate valve (7) and a butterfly valve (8), the front of a valve (6) and a valve (9) of a pressure discharging valve (6) and a pressure discharging valve (9) in the pressure discharging valve pipeline is in parallel connection into the dust remover (10) and the blast furnace material tank (11), wherein the pressure discharging valve (6) and the pressure discharging valve (9) are in parallel connection. The pressure equalizing and discharging valve group at the furnace top of the serial-tank blast furnace has the advantages of achieving online overhaul, being capable of processing system faults without stopping production or damping down, enhancing system reliability, meeting the requirements for stable production of the blast furnace and having good economic benefits.
Description
Affiliated field
The utility model relates to jar blast furnace furnace roof pressurization of a kind of string, row pressure system device, especially is adapted to the equal purge valve group of blast furnace furnace roof.
Background technology
At steel-making enterprise, during the blast furnace high top pressure operation, the lower seal valve receives the pressure of furnace throat inner high voltage gas.In order to make down close smooth unlatching, open pressure-balance valve earlier gas (blast furnace purified gas or half purified gas) is got in the batch can.For upper sealing valve is operated smoothly, bleed off the high pressure gas of batch can again, open purge valve and make upper sealing valve pressure up and down be normal atmosphere.The equipment of accomplishing aforesaid operations is in parallel installed with the back by two groups of valves and connects fly-ash separator and blast furnace bucket.Two groups of valves are the pressure-balance valve pipeline for one group, and another group is the purge valve pipeline, and each organizes valve pipeline respectively has two identical valves to be in parallel installed with, and the pressure-balance valve pipeline the other end and coal gas or half clean coal tracheae join, and the purge valve pipeline the other end and row pressure sound damper join.Each organizes two identical valves that are in parallel installed with in the valve pipeline, wherein works at ordinary times and is in closing condition for one, is used as subsequent use; In case a valve breaks down in the time of can not opening; Then start subsequent use valve, the shortcoming that said structure exists is: no matter every valve of which group valve pipeline leaks in case break down; All must could keep in repair valve by the stopping production damping down, influential to producing.
Summary of the invention
The purpose of the utility model is: a kind of damping down that need not stop production is provided, the equal purge valve group of blast furnace furnace roof of ability on-line maintenance.
The technical scheme of the utility model is achieved in that original system design and installation mode is constant; What improve design is: before every valve of pressure-balance valve pipeline and two pressure-balance valves connecing successively polyphone along being connected to the blow down valve branch road, after blank-plate valve, the butterfly valve again parallel connection insert purified gas or half clean coal tracheae; In the purge valve pipeline before every valve of the purge valve of two parallel connections successively polyphone along be connected to be connected in parallel again after the blank-plate valve, butterfly valve after again with the pressure-balance valve pipeline and connect join fly-ash separator and blast furnace bucket.This scheme can realize online inspection operation, and blast furnace is without damping down, and binder can the treatment system fault.
Pressure-equalizing passageway or equipment like system break down, and are example with pressure-balance valve 1 fault, at first close the butterfly valve that pressure-balance valve 1 joins and close the blind plate valve again; Open pressure-balance valve 1, close pressure-balance valve 2, drive blow down valve; Behind two equal nitrogen punching presses purging coal gas, open pressure-balance valve 1 access opening and can handle; Leak like pressure-balance valve, and temporarily can't handle the time, can close butterfly valve and close blank-plate valve again, launch another set of pressure-balance valve and get final product.
Row pressure pipeline or equipment like system break down, and earlier purge valve 1 and purge valve 2 are opened, and open two equal nitrogen punching presses then and purge coal gas, open fault purge valve access opening and can handle; Leak like purge valve, and temporarily can't handle the time, can close butterfly valve and close blank-plate valve again, launch another set of purge valve and get final product.
The advantage of the utility model is: realized on-bne repair, the damping down treatment system that need not stop production fault has strengthened the safety of system, has satisfied the requirement of blast furnace stably manufactured, has favorable economic benefit.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing 1 is an original system cloth structural representation.
Accompanying drawing 2 is the utility model structural representation.
Among the figure 1, pressure-balance valve 1,2, pressure-balance valve 2,3, blow down valve 1,4, blank-plate valve 1,5, butterfly valve 1,6, purge valve 1,7, blank-plate valve 3,8, butterfly valve 3,9, purge valve 2,10, fly-ash separator, 11, blast furnace bucket.
Specific embodiment
Original system design and installation mode is constant, and what improve design is: the preceding polyphone successively in pressure-balance valve pipeline and two pressure-balance valves (1), (2) that connect is along being connected to blow down valve (3) branch road, parallelly connected more afterwards purified gas or the half clean coal tracheae of inserting of blank-plate valve (4), butterfly valve (5); In the purge valve pipeline before every valve of two and the purge valve (6) that connects, (9) successively polyphone along be connected to blank-plate valve (7), butterfly valve (8) be connected in parallel again afterwards after again with pressure-balance valve pipeline be connected in parallel fly-ash separator (10) and blast furnace bucket (11).
Claims (1)
1. equal purge valve group of string jar blast furnace furnace roof; Be in parallel installed with the back by equal, two groups of valves of row pressure and connect fly-ash separator and blast furnace bucket; Each organizes valve pipeline respectively has two identical valves to be in parallel installed with; The pressure-balance valve pipeline the other end and coal gas or half clean coal tracheae join; The purge valve pipeline the other end and row pressure sound damper join, and it is characterized in that: pressure-balance valve pipeline and two pressure-balance valves (1) that connect, every valve (1) of (2), (2) preceding polyphone successively be along being connected to blow down valve (3) branch road, and blank-plate valve (4), butterfly valve (5) are afterwards again and connect into purified gas or half clean coal tracheae; In the purge valve pipeline two and the preceding polyphone successively in the purge valve (6), every valve (6) of (9), (9) that connect along be connected to blank-plate valve (7), butterfly valve (8) be connected in parallel again afterwards after again with pressure-balance valve pipeline be connected in parallel fly-ash separator (10) and blast furnace bucket (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203656527U CN202226868U (en) | 2011-09-19 | 2011-09-19 | Pressure equalizing and discharging valve group at furnace top of serial-tank blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203656527U CN202226868U (en) | 2011-09-19 | 2011-09-19 | Pressure equalizing and discharging valve group at furnace top of serial-tank blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202226868U true CN202226868U (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203656527U Expired - Fee Related CN202226868U (en) | 2011-09-19 | 2011-09-19 | Pressure equalizing and discharging valve group at furnace top of serial-tank blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202226868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487026A (en) * | 2018-12-21 | 2019-03-19 | 唐山市德龙钢铁有限公司 | A kind of novel blast-furnace pressure equalizing blow off valve package assembly and its operating method |
-
2011
- 2011-09-19 CN CN2011203656527U patent/CN202226868U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487026A (en) * | 2018-12-21 | 2019-03-19 | 唐山市德龙钢铁有限公司 | A kind of novel blast-furnace pressure equalizing blow off valve package assembly and its operating method |
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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: 20120523 Termination date: 20150919 |
|
| EXPY | Termination of patent right or utility model |