CN202912978U - Pressure-sharing diffusing device for parallel bucket non-bell furnace top - Google Patents
Pressure-sharing diffusing device for parallel bucket non-bell furnace top Download PDFInfo
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- CN202912978U CN202912978U CN 201220503223 CN201220503223U CN202912978U CN 202912978 U CN202912978 U CN 202912978U CN 201220503223 CN201220503223 CN 201220503223 CN 201220503223 U CN201220503223 U CN 201220503223U CN 202912978 U CN202912978 U CN 202912978U
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Abstract
The utility model discloses a pressure-sharing diffusing device for a parallel bucket non-bell furnace top. The device comprises two charging buckets and two blast furnaces which are arranged in parallel, wherein the blast furnaces are connected with the charging buckets through feeding valves; each charging bucket is connected with a cyclone dust collector; a connecting pipeline is arranged between the two cyclone dust collectors; a pre-pressure-sharing valve is arranged on the connecting pipeline; each cyclone dust collector is connected with a diffusing pipeline communicated with the atmosphere; and a diffusing valve is arranged on the diffusing pipeline. The device further comprises a clean gas bucket inflated with high-pressure clean gas, wherein a clean gas valve is arranged on a pressure-sharing pipeline and near the clean gas bucket; and pressure-sharing valves are arranged on the pressure-sharing pipeline and near the two charging buckets. The device adopts diffusion of the clean gas instead of diffusion of gas, solves the problems of environmental pollution, waste of resources and the like caused by the traditional process, and has good economic benefit and social benefit. One charging bucket is subjected to pre-pressure-sharing by the diffusing gas of the adjacent charging bucket, so that the quantity of gas consumed by pressure sharing and the quantity of gas discharged by diffusion can be reduced.
Description
Technical field
The utility model relates to the Iron And Steel Industry technical field, relates in particular to a kind of and tank without the pressure-equalizing bleeding device of bell furnace roof.
Background technology
The environmental requirement that steel industry is increasingly serious and Market Situation require iron and steel enterprise must accomplish energy-saving and emission-reduction, reduce cost.At present, blast furnace ironmaking operation discharge amount of pollution occupies the major part of whole steel industry quantity discharged, therefore, reduces the Iron-smelting quantity discharged and seems particularly necessary.
At present, worldwide batch can pressure-equalizing and discharging process all adopts the semicentennial traditional pressure-equalizing and discharging technology of having continued to use, namely utilize half purified gas, nitrogen all to be depressed into to batch can consistent with blast furnace top pressure, then stop to the batch can pressurising, open blanking lock discharge in the blast furnace; When diffusing, the raw gas in the batch can directly enters in the atmosphere after the thick dedusting of tornado dust collector, so that batch can diffuses to normal pressure, satisfies the batch can material feeding.This traditional pressure-equalizing and discharging control mode causes a large amount of poisonous coal gas also to enter in the air, has not only polluted environment, and is a kind of huge economic waste.By the ton iron amount of diffusing 7～9Nm
3Calculate, at present, China's year coal gas diffusion amount reaches about 50 billion cubic meters, and (the blast furnace gas unit price is by 0.11 yuan/Nm up to 5.5 hundred million yuans for financial loss
3Calculate).
Therefore, if can develop a kind of new pressure-equalizing and discharging technology, stop pressure-equalizing and discharging coal gas and directly sky is diffused, can alleviate environmental pollution, reach the target of setting up the environmental friendliness section steel works, can reclaim a large amount of Gas Resources again, obtain good economic benefit, have wide market outlook.
The utility model content
The technical problems to be solved in the utility model be in the prior art to and tank when carrying out pressure-equalizing and discharging without the bell furnace roof, blast furnace gas directly enters atmosphere in the batch can, to the defective of environment and waste Gas Resource, provide a kind of and can not pollute and can better reclaim the also tank of blast furnace gas in the batch can without bell furnace roof environmental protection pressure-equalizing bleeding device to air.
The technical scheme that its technical problem that solves the utility model adopts is:
Provide a kind of and tank without bell furnace roof environmental protection pressure-equalizing bleeding device, comprise at least two batch cans that are arranged in juxtaposition and blast furnace, be connected by baiting valve between blast furnace and the batch can, each batch can all connects tornado dust collector, be provided with connecting tube between the tornado dust collector, this connecting tube is provided with pre-equalizing valve;
Each tornado dust collector also is connected with the diffuse channel that is communicated with atmosphere, and diffuse channel is provided with diffusion valve;
This device also comprises the clean air tank that is filled with high pressure cleaning gas, this clean air tank is connected respectively with each batch can by pressure-equalizing passageway, be provided with the clean air valve near clean air tank place on the pressure-equalizing passageway, on pressure-equalizing passageway, also be respectively equipped with equalizing valve near each batch can place.
Described in the utility model and tank is without in the bell furnace roof environmental protection pressure-equalizing bleeding device, and this device also comprises sound damper, is connected with described diffuse channel.
Use the utility model, has following beneficial effect: in batch can, pass into clean air, when blast furnace bucket is carried out pressure-equalizing and discharging, diffuse the replacement coal gas diffusion with clean air, solve the problems such as the raw gas environmental pollution that directly discharging causes to sky of pressure-equalizing and discharging in the traditional technology and the wasting of resources, had good economic benefit and a social benefit; And, by the diffused gas of a batch can adjacent batch can is all pressed in advance, can reduce and all press the gas volume that consumes and diffuse the gas volume of discharging.In addition, the relatively original technique of the utility model, simple to operate, safe and reliable, can be directly on existing blast furnace and tank base simple the transformation get final product, fixed investment and operation expense are cheap.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is that the utility model embodiment and tank are without the structural representation of bell furnace roof environmental protection pressure-equalizing bleeding device.
Among the figure, 1-clean air tank; 2-1# clean air valve; 3-2# clean air valve; 4-pressure-equalizing passageway; 5-blanking lock; 6-1# batch can; 7-2# batch can; 8-1# equalizing valve; 9-2# equalizing valve; 10-1# whirlwind valve; 11-2# whirlwind valve; 12-1# tornado dust collector; 13-2# tornado dust collector; 14-1# diffusion valve; 15-2# diffusion valve; 16-pre-equalizing valve; 17-sound damper.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
In preferred embodiment of the present utility model, as shown in Figure 1, and tank is without bell furnace roof environmental protection pressure-equalizing bleeding device, comprise at least two batch cans that are arranged in juxtaposition, comprise 1# batch can 6 and 2# batch can 7, this device also comprises blast furnace, is connected by baiting valve 5 between blast furnace and the batch can, and each batch can respectively has independent valve to be connected with baiting valve 5.1# batch can 6 connects 1# tornado dust collector 12, also be connected with 1# whirlwind valve 10 on these 1# tornado dust collector 12,2# batch can 7 connects 2# tornado dust collector 13, also be connected with 2# whirlwind valve 11 on these 2# tornado dust collector 13, be provided with connecting tube between the tornado dust collector, this connecting tube is provided with pre-equalizing valve 16; For three and tank and above batch can, also connect by pre-equalizing valve between adjacent batch can.
Each tornado dust collector also is connected with the diffuse channel that is communicated with atmosphere, and diffuse channel is provided with diffusion valve, comprises the 1# diffusion valve 14 that is connected with 1# tornado dust collector 12, and the 2# diffusion valve 15 that is connected with 2# tornado dust collector 13;
This device also comprises the clean air tank 1 that is filled with high pressure cleaning gas, this clean air tank 1 is connected respectively with two batch cans by pressure-equalizing passageway 4, be provided with the clean air valve near clean air tank 1 place on the pressure-equalizing passageway 4, comprise 1# clean air valve 2 and 2# clean air valve 3; On pressure-equalizing passageway 4, also be respectively equipped with equalizing valve near two batch can places, comprise 1# equalizing valve 8 and 2# equalizing valve 9.
In order to reduce noise pollution, as shown in Figure 1, this device also comprises sound damper 17, is connected with diffuse channel.
Utilize in above-described embodiment and tank is all pressed without bell furnace roof environmental protection pressure-equalizing bleeding device and the method for diffusing is specially:
When 1# batch can 6 is all pressed, open 2# clean air valve 3 and 1# equalizing valve 8, clean air is in pressure-equalizing passageway 4 enters 1# batch can 6.After the pressure in the 1# batch can 6 satisfies equal pressure request, close 2# clean air valve 3, stop in 1# batch can 6, passing into clean air; Open blanking lock 5, the furnace charge in the 1# batch can 6 enters in the blast furnace.
After furnace charge enters blast furnace fully, keeping blanking lock 5 under the opened condition, open 1# clean air valve 2, again in 1# batch can 6, pass into clean air, the coal gas in the 1# batch can 6 is caught up with in the blast furnace; When the blast furnace gas volume percent in the 1# batch can 6 less than 5% the time, close blanking lock 5 and 1# clean air valve 2.
When diffusing, at first open pre-equalizing valve 16, gas in the 1# batch can 6 is after 12 dedustings of 1# tornado dust collector, be introduced into 2# batch can 7, the 2# batch can 7 of filling material is all pressed in advance, when 1# batch can 6 is consistent with 2# batch can 7 internal pressures, close pre-equalizing valve 16, open 1# diffusion valve 14, the residual gas in the 1# batch can 6 enters in the atmosphere through sound damper 17.
The pressure-equalizing and discharging control mode of 2# batch can 7 is consistent with 1# batch can 6.
Embodiment 2
And tank is without bell furnace roof environmental protection pressure-equalizing and discharging method, and its step can also be:
When 1# batch can 6 is all pressed, open 2# clean air valve 3 and 1# equalizing valve 8, clean air is in pressure-equalizing passageway 4 enters 1# batch can 6.After the pressure in the 1# batch can 6 satisfies equal pressure request, close 2# clean air valve 3, stop in 1# batch can 6, passing into clean air; Open blanking lock 5, the furnace charge in the 1# batch can 6 enters in the blast furnace.
After furnace charge enters blast furnace fully, keeping blanking lock 5 under the opened condition, open 1# clean air valve 2, again in 1# batch can 6, pass into clean air, the coal gas in the 1# batch can 6 is caught up with in the blast furnace; When the blast furnace gas volume percent in the 1# batch can 6 less than 10% the time, close blanking lock 5 and 1# clean air valve 2.
When diffusing, at first open pre-equalizing valve 16, gas in the 1# batch can 6 is after 12 dedustings of 1# tornado dust collector, be introduced into 2# batch can 7, the 2# batch can 7 of filling material is all pressed in advance, when 1# batch can 6 is consistent with 2# batch can 7 internal pressures, close pre-equalizing valve 16, open 1# diffusion valve 14, the residual gas in the 1# batch can 6 enters in the atmosphere through sound damper 17.
The pressure-equalizing and discharging control mode of 2# batch can 7 is consistent with 1# batch can 6.
And tank is without bell furnace roof environmental protection pressure-equalizing and discharging method, and its step can also be:
When 1# batch can 6 is all pressed, open 2# clean air valve 3 and 1# equalizing valve 8, clean air is in pressure-equalizing passageway 4 enters 1# batch can 6.After the pressure in the 1# batch can 6 satisfies equal pressure request, close 2# clean air valve 3, stop in 1# batch can 6, passing into clean air; Open blanking lock 5, the furnace charge in the 1# batch can 6 enters in the blast furnace.
After furnace charge enters blast furnace fully, keeping blanking lock 5 under the opened condition, open 1# clean air valve 2, again in 1# batch can 6, pass into clean air, the coal gas in the 1# batch can 6 is caught up with in the blast furnace; When the blast furnace gas volume percent in the 1# batch can 6 less than 20% the time, close blanking lock 5 and 1# clean air valve 2.
When diffusing, at first open pre-equalizing valve 16, gas in the 1# batch can 6 is after 12 dedustings of 1# tornado dust collector, be introduced into 2# batch can 7, the 2# batch can 7 of filling material is all pressed in advance, when 1# batch can 6 is consistent with 2# batch can 7 internal pressures, close pre-equalizing valve 16, open 1# diffusion valve 14, the residual gas in the 1# batch can 6 enters in the atmosphere through sound damper 17.
The pressure-equalizing and discharging control mode of 2# batch can 7 is consistent with 1# batch can 6.
Embodiment 4
And tank is without bell furnace roof environmental protection pressure-equalizing and discharging method, and its step can also be: when 1# batch can 6 is all pressed, open 2# clean air valve 3 and 1# equalizing valve 8, clean air is in pressure-equalizing passageway 4 enters 1# batch can 6.After the pressure in the 1# batch can 6 satisfies equal pressure request, close 2# clean air valve 3, stop in 1# batch can 6, passing into clean air.
Open blanking lock 5 and 1# clean air valve 2, when the furnace charge in the 1# batch can 6 enters blast furnace, through pressure-equalizing passageway 4 slowly passed into 1# batch can 6 in, in time filled up because furnace charge enter the space blast furnace after vacated again by the clean air that passes into for clean air, stops blast furnace gas to enter in the 1# batch can 6.After the furnace charge in the 1# batch can 6 all enters blast furnace, close blanking lock 5 and 1# clean air valve 2.
When diffusing, at first open pre-equalizing valve 16, gas in the 1# batch can 6 is after 12 dedustings of 1# tornado dust collector, be introduced into 2# batch can 7, the 2# batch can 7 of filling material is all pressed in advance, when 1# batch can 6 is consistent with 2# batch can 7 internal pressures, close pre-equalizing valve 16, open 1# diffusion valve 14, the residual gas in the 1# batch can 6 enters in the atmosphere through sound damper 17.
The pressure-equalizing and discharging control mode of 2# batch can 7 is consistent with 1# batch can 6.
The utility model passes into clean air in batch can, blast furnace bucket is all pressed, when diffusing, diffuse the replacement coal gas diffusion with clean air, solve the problems such as the raw gas environmental pollution that directly discharging causes to sky of pressure-equalizing and discharging in the traditional technology and the wasting of resources, had great economic benefit and a social benefit; And, by the diffused gas of a batch can adjacent batch can is all pressed in advance, can reduce and all press the gas volume that consumes and diffuse the gas volume of discharging.In addition, the relatively original technique of the utility model, simple to operate, safe and reliable, can directly reproduce has on blast furnace and the tank base simple the transformation get final product, and fixed investment and operation expense are cheap.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (2)
1. one kind and tank are without bell furnace roof environmental protection pressure-equalizing bleeding device, it is characterized in that, comprise at least two batch cans that are arranged in juxtaposition and blast furnace, be connected by baiting valve between blast furnace and the batch can, each batch can all connects tornado dust collector, be provided with connecting tube between the tornado dust collector, this connecting tube is provided with pre-equalizing valve;
Each tornado dust collector also is connected with the diffuse channel that is communicated with atmosphere, and diffuse channel is provided with diffusion valve;
This device also comprises the clean air tank that is filled with high pressure cleaning gas, this clean air tank is connected respectively with each batch can by pressure-equalizing passageway, be provided with the clean air valve near clean air tank place on the pressure-equalizing passageway, on pressure-equalizing passageway, also be respectively equipped with equalizing valve near each batch can place.
2. according to claim 1 and tank is characterized in that without bell furnace roof environmental protection pressure-equalizing bleeding device, and this device also comprises sound damper, is connected with described diffuse channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220503223 CN202912978U (en) | 2012-09-28 | 2012-09-28 | Pressure-sharing diffusing device for parallel bucket non-bell furnace top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220503223 CN202912978U (en) | 2012-09-28 | 2012-09-28 | Pressure-sharing diffusing device for parallel bucket non-bell furnace top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202912978U true CN202912978U (en) | 2013-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220503223 Expired - Fee Related CN202912978U (en) | 2012-09-28 | 2012-09-28 | Pressure-sharing diffusing device for parallel bucket non-bell furnace top |
Country Status (1)
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|---|---|
| CN (1) | CN202912978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017171596A1 (en) | 2016-03-30 | 2017-10-05 | Husqvarna Ab | A relief valve and a hose device for dust collectors, a dust collector and a method for operating a dust collector |
-
2012
- 2012-09-28 CN CN 201220503223 patent/CN202912978U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017171596A1 (en) | 2016-03-30 | 2017-10-05 | Husqvarna Ab | A relief valve and a hose device for dust collectors, a dust collector and a method for operating a dust collector |
| US11197593B2 (en) | 2016-03-30 | 2021-12-14 | Husqvarna Ab | Relief valve and a hose device for dust collectors, a dust collector and a method for operating a dust collector |
| US11759067B2 (en) | 2016-03-30 | 2023-09-19 | Husqvarna Ab | Relief valve and a hose device for dust collectors, a dust collector and a method for operating a dust collector |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20180928 |