CN203668429U - Pressure, vibration and noise reduction device for high coal pipe network of large blast furnace - Google Patents
Pressure, vibration and noise reduction device for high coal pipe network of large blast furnace Download PDFInfo
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- CN203668429U CN203668429U CN201320569222.6U CN201320569222U CN203668429U CN 203668429 U CN203668429 U CN 203668429U CN 201320569222 U CN201320569222 U CN 201320569222U CN 203668429 U CN203668429 U CN 203668429U
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Abstract
The utility model relates to a pressure, vibration and noise reduction device for a high coal pipe network of a large blast furnace. The pressure, vibration and noise reduction device is characterized by comprising a gravitate dust filter, a bag-type dust remover, a pressure reducing valve group pressure reduction device, a pressure reduction device, a special vibration and pressure reduction device, a dehydrater and a U-shaped water seal, wherein the gravitate dust filter is connected with the bag-type dust remover through a pipeline, the bag-type dust remover is connected with the special vibration and pressure reduction device through pipelines in two ways, one way of the bag-type dust remover is connected with an inlet of the special vibration and pressure reduction device through the pressure reducing valve group pressure reduction device, the other way of the bag-type dust remover is connected with the inlet of the special vibration and pressure reduction device through the pressure reduction device, and the special vibration and pressure reduction device is connected with the U-shaped water seal through the dehydrater. The pressure, vibration and noise reduction device has the benefits as follows: 1), the whole device is simple in structure, low in cost and convenient, reliable and fast to operate; 2), a circular seam pressure reduction system is added in a TRT (blast furnace top gas recovery turbine unit) and pressure reducing valve group system, pressure reduction values of each section are reasonably allocated according to the top pressure setting value of the blast furnace through a classified pressure reduction technology, and vibration and noise of the pipe network are effectively reduced.
Description
Technical field
The utility model relates to a kind of decompression, vibration damping, denoising device, relates in particular to a kind of large high coal pipe network of blast furnace decompression, vibration damping, denoising device, is applicable to iron and steel enterprise and other corresponding industrial circle.
Background technology
In large blast-furnace smelting production process, iron per ton can output pressure be the about 1500m of 150-250KPa
3blast furnace gas, how effectively to utilize pressure potential and the combustion heat energy of this blast furnace gas, extremely important to smelter surplus energy utility and safe operation.But very high to top pressure request in large blast-furnace smelting, in be controlled at ± 3KPa of pressure surge, in accurately controlling large blast furnace top pressure, how by blast-furnace gas pressure steady decrease to 12-14KPa, realizing complementary energy and effectively utilize, is the difficult problem that each smelter faces.
In blast furnace top pressure Controlling System, common technology is TRT and reducing valve group system, subject matter is under TRT maintenance or failure condition, during reducing valve group control blast furnace top pressure, the vibration of reducing valve group zone duct is large, noise is high, very large to pipeline, valve damage, often occur that the fluctuation of reducing valve fault blast furnace top pressure is large, when serious, there is being forced to long-time damping down.
Chinese patent application CN200920004185.8 discloses " Novel blast furnace gas pressure relief valve group and noise-and-vibration-reduction complete set device ", and this utility model comprises and is arranged on the decompression main valve imported and exported between adapter bonnet, 3～4 decompression by-pass valve, bypass pipe, 1～3 throttling valve, 1～3 throttle tube, 1～5 group of anechoic sheet and cylindrical shell sound insulation wrapping layer.Effect of the present utility model is by rearranging each valve, and takes comb stream and water saving measures, and coal gas compression release valve group noise and vibration is reduced, and can in the situation that not establishing silencing hood, noise be dropped to below 90dBA by 120～130dBA.
Above technology mode decompression still only adopts reducing valve group, and noise abatement adopts anechoic sheet pattern.But this structure can not change pipeline body vibration and noise, and the bloop material selection being installed in addition with and installation site were not at that time, easily caused bloop breakage, stopped up back segment row of conduits water drum, caused accident of pipeline network.Above technique and the utility model structure have essential distinction, and the split reduction mode that the utility model adopts can reduce pipeline body vibration, thereby reduces noise.By other smelters are known, in large blast furnace system, a reducing valve group vibration difficult problem is not all resolved in addition.Be TRT and reducing valve group system in the blast furnace top pressure control technique using at present, subject matter is under TRT maintenance or failure condition, during reducing valve group control blast furnace top pressure, the vibration of reducing valve group zone duct is large, noise is high, very large to pipeline, valve damage, often occurs that the fluctuation of reducing valve fault blast furnace top pressure is large, when serious, occur that pipeline is large because vibrating, produce pipeline crack, coal gas leaks in a large number, and blast furnace is forced to long-time damping down.Therefore, a kind of new technical scheme of exigence solves above-mentioned technical problem.
Summary of the invention
The utility model is just for the technical problem existing in prior art, a kind of simple in structure, the easy to operate decompression of the high coal pipe network of large blast furnace, vibration damping, denoising device are provided, adopt classification step-down technique, this device solution reducing valve group vibration is large, noise is large, the technical problem that failure rate is high.This technical scheme can ensure that the accurate control of blast furnace top pressure realizes high coal network security operation, effectively reduces vibration and the noise of pipe network.
To achieve these goals, the technical solution of the utility model is as follows, the high coal pipe network decompression of a kind of large blast furnace, vibration damping, denoising device, it is characterized in that, described device comprises gravitational precipitator, sack cleaner, reducing valve group reliever, reliever, special vibration damping reliever, water trap and U-shaped water seal, described gravitational precipitator connects sack cleaner by pipeline, sack cleaner divides two-way to connect by pipeline, the reducing valve group reliever of leading up to connects the entrance of special vibration damping reliever, the reliever of separately leading up to is connected to the entrance of special vibration damping reliever, described special vibration damping reliever connects U-shaped water seal by water trap.
As a kind of improvement of the present utility model, in described reliever, be provided with circumferential weld pressure drop system, and then realize pressure reduction with classification.
As a kind of improvement of the present utility model, described special vibration damping reliever is provided with circumferential weld pressure drop system, and then realizes pressure reduction with classification.
1), whole apparatus structure is simple with respect to prior art, the beneficial effects of the utility model are as follows:, cost is low; Easy to operate, reliable, quick; 2) in TRT and reducing valve group system, increase a set of circumferential weld depressurizing system, adopt pressure reduction with classification technique, according to blast furnace top pressure settings, each section of pressure relief value of properly distributed, effectively reduces vibration and the noise of pipe network; The utility model can ensure that the accurate control of blast furnace top pressure realizes high coal network security operation, reduces TRT and reducing valve group failure rate.
Brief description of the drawings
Fig. 1 is the utility model one-piece construction schematic diagram.
In figure: 1-gravitational precipitator, 2-sack cleaner, 3-reducing valve group reliever, 4-reliever, the special vibration damping reliever of 5-, 6-water trap, the water seal of 7-U type.
Embodiment
In order to deepen, to understanding and cognition of the present utility model, below in conjunction with the drawings and specific embodiments, the utility model to be made further instructions and introduced.
embodiment 1:
Referring to Fig. 1, the high coal pipe network decompression of a kind of large blast furnace, vibration damping, denoising device, described device comprises gravitational precipitator 1, sack cleaner 2, reducing valve group reliever 3, reliever 4, special vibration damping reliever 5, water trap 6 and U-shaped water seal 7, described gravitational precipitator 1 connects sack cleaner 2 by pipeline, sack cleaner 2 divides two-way to connect by pipeline, the reducing valve group reliever 3 of leading up to connects the entrance of special vibration damping reliever 5, the reliever 4 of separately leading up to is connected to the entrance of special vibration damping reliever 5, described special vibration damping reliever 5 connects U-shaped water seal 7 by water trap 6.
embodiment 2:
Referring to Fig. 1, as a kind of improvement of the present utility model, in described reliever 4, be provided with circumferential weld pressure drop system, and then realize pressure reduction with classification.All the other structures and advantage are identical with embodiment 1.
embodiment 3:
Referring to Fig. 1, as a kind of improvement of the present utility model, described special vibration damping reliever 5 is provided with circumferential weld pressure drop system, and then realizes pressure reduction with classification.All the other structures and advantage are identical with embodiment 1.
Concrete operation step is as follows:
With reference to Fig. 1, the blast furnace gas that blast furnace produces again through sack cleaner 2, enters depressurized system and realizes the recycling of blast furnace coal potential energy after gravitational precipitator 1.Under normal circumstances, blast furnace gas is once depressurized to 15-40KPa through TRT reliever 4, enters special vibration damping reliever 5 and carries out secondary and be depressurized to 12-14KPa; Stop in labour situation at TRT reliever 4, blast furnace gas is once depressurized to 100-140KPa through reducing valve group device 3, enters special vibration damping reliever 5 and carries out secondary and be depressurized to 12-14KPa.Pass through successively water trap 6, U-shaped water seal 7 enters gas main again.
The utility model can also be combined to form new embodiment by least one and embodiment 1 in technical characterictic described in embodiment 2,3.
It should be noted that above-described embodiment is only preferred embodiment of the present utility model; be not used for limiting protection domain of the present utility model; being equal to replacement or substituting of having done on the basis of the above all belongs to protection domain of the present utility model, and protection domain of the present utility model is as the criterion with claims.
Claims (2)
1. the high coal pipe network of large blast furnace decompression, vibration damping, denoising device, it is characterized in that, described device comprises gravitational precipitator, sack cleaner, reducing valve group reliever, reliever, special vibration damping reliever, water trap and U-shaped water seal, described special vibration damping reliever is provided with circumferential weld pressure drop system, and then realizes pressure reduction with classification; Described gravitational precipitator connects sack cleaner by pipeline, sack cleaner divides two-way to connect by pipeline, the reducing valve group reliever of leading up to connects the entrance of special vibration damping reliever, the reliever of separately leading up to is connected to the entrance of special vibration damping reliever, and described special vibration damping reliever connects U-shaped water seal by water trap.
2. the high coal pipe network of the large blast furnace of one according to claim 1 decompression, vibration damping, denoising device, is characterized in that, is provided with circumferential weld pressure drop system, and then realizes pressure reduction with classification in described reliever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569222.6U CN203668429U (en) | 2013-09-14 | 2013-09-14 | Pressure, vibration and noise reduction device for high coal pipe network of large blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569222.6U CN203668429U (en) | 2013-09-14 | 2013-09-14 | Pressure, vibration and noise reduction device for high coal pipe network of large blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203668429U true CN203668429U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320569222.6U Expired - Fee Related CN203668429U (en) | 2013-09-14 | 2013-09-14 | Pressure, vibration and noise reduction device for high coal pipe network of large blast furnace |
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| CN (1) | CN203668429U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660275A (en) * | 2018-05-30 | 2018-10-16 | 北京科技大学 | A method of steel-making supersonic jet oxygen rifle and its reduction injection jet noise |
| CN112831622A (en) * | 2021-01-06 | 2021-05-25 | 鞍钢股份有限公司 | Blast furnace gas cooling and dechlorinating system and method |
| CN112831621A (en) * | 2021-01-06 | 2021-05-25 | 鞍钢股份有限公司 | Blast furnace gas cooling system and cooling control method |
| CN112853015A (en) * | 2021-01-06 | 2021-05-28 | 鞍钢股份有限公司 | High-efficiency cooling system and method for blast furnace gas |
-
2013
- 2013-09-14 CN CN201320569222.6U patent/CN203668429U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660275A (en) * | 2018-05-30 | 2018-10-16 | 北京科技大学 | A method of steel-making supersonic jet oxygen rifle and its reduction injection jet noise |
| CN112831622A (en) * | 2021-01-06 | 2021-05-25 | 鞍钢股份有限公司 | Blast furnace gas cooling and dechlorinating system and method |
| CN112831621A (en) * | 2021-01-06 | 2021-05-25 | 鞍钢股份有限公司 | Blast furnace gas cooling system and cooling control method |
| CN112853015A (en) * | 2021-01-06 | 2021-05-28 | 鞍钢股份有限公司 | High-efficiency cooling system and method for blast furnace gas |
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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: 20140625 |