CN213113391U - Novel furnace top gas recovery device - Google Patents
Novel furnace top gas recovery device Download PDFInfo
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- CN213113391U CN213113391U CN202021510645.7U CN202021510645U CN213113391U CN 213113391 U CN213113391 U CN 213113391U CN 202021510645 U CN202021510645 U CN 202021510645U CN 213113391 U CN213113391 U CN 213113391U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model discloses a novel furnace top gas recovery device, which comprises a furnace top large platform, wherein two ends of the furnace top large platform are fixedly connected with a gas recovery pipe, the upper end of the gas recovery pipe is provided with a communicating pipe, the left end of the gas recovery pipe is provided with a first manual eye valve, the right end of the gas recovery pipe is provided with a second manual eye valve, the upper end of the first manual eye valve is provided with a first pressure equalizing and bleeding valve, the upper end of the left side of the communicating pipe is provided with a first pressure equalizing valve, the upper end of the first pressure equalizing valve is provided with a third manual eye valve, the upper end of the right side of the communicating pipe is provided with a second pressure equalizing and bleeding valve and a third pressure equalizing and bleeding valve, the gas recovery pipe is connected with a bypass pipeline, the gas recovery chamber body adopts an upper air inlet mode, the lower part is provided with a horn mouth, and the effect of a gravity dust collector is achieved during recovery, greatly saving investment cost and saving field.
Description
Technical Field
The utility model belongs to the technical field of the coal gas recovery, specifically be a novel furnace top coal gas recovery device.
Background
The pressure-equalizing and bleeding coal gas of the blast furnace top in the metallurgical industry is discharged to the air, the national requirement of 2019 that the coal gas of the blast furnace top needs to be recycled cannot be discharged to the air, the pressure-equalizing and bleeding coal gas of the blast furnace top is a basic process flow in the production process of the blast furnace, the pressure-equalizing and bleeding coal gas of the blast furnace top does not have a good solution for the air discharge for many years, a large amount of coal gas is discharged outside, resources are wasted, acid rain is easy to generate, and certain influence is caused on the surrounding environment, so a coal gas recycling device is needed to recycle the coal gas.
The existing furnace top gas recovery device has a huge structure and poor gas recovery effect, the existing furnace top gas recovery device is expensive, and the existing furnace top gas recovery device cannot recover and utilize gas, so that the practicability is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the problems, a novel top gas recovery device is provided.
The utility model adopts the technical scheme as follows: a novel furnace top gas recovery device comprises a furnace top large platform, wherein both ends of the furnace top large platform are fixedly connected with gas recovery pipes, the upper end of the gas recovery pipe is provided with a communicating pipe, the left end of the gas recovery pipe is provided with a first manual eye valve, a second manual eye valve is arranged at the right end of the coal gas recovery pipe, a first pressure-equalizing blow-off valve is arranged at the upper end of the first manual eye valve, a first pressure equalizing valve is arranged at the upper end of the left side of the communicating pipe, a third manual eye valve is arranged at the upper end of the first pressure equalizing valve, a second pressure equalizing valve is arranged at the upper end of the right side of the communicating pipe, a second pressure equalizing blow-off valve and a third pressure equalizing blow-off valve are arranged at the upper end of the second manual eye valve, the upper end of the third pressure-equalizing blow-off valve is connected with a fourth manual eye valve, the gas recovery pipe is connected with a bypass pipeline, and the bypass pipeline is provided with a manual ball valve.
In a preferred embodiment, the bottom of the right end of the gas recovery pipe is fixedly connected inside the gas recovery bin body, a lattice plate is arranged inside the gas recovery bin body, and a clean gas heating pipeline is fixedly connected to the left side of the lower end of the cloth bag and fixedly connected to the joint of the gas recovery bin body and the bottom of the gas recovery pipe.
In a preferred embodiment, the top end of the communicating pipe is connected with a collecting pipeline, the lower end of the collecting pipeline is fixedly connected with a gravity dust collector, and the bottom of the gravity dust collector is connected with a high-pressure pipe network through the collecting pipeline.
In a preferred embodiment, the right end of the coal gas recovery bin body is fixedly connected with a first pipeline, the right side of the first pipeline is provided with a first hydraulic pressure equalizing valve, the right side of the first hydraulic pressure equalizing valve is provided with a check valve on the first pipeline, the bottom of the first pipeline is fixedly connected to an ejector, and the right side of the ejector is fixedly connected with a second pipeline.
In a preferred embodiment, the second pipeline lower extreme is connected with manual blind plate valve, manual blind plate valve lower extreme fixedly connected with electric butterfly valve on the second pipeline, second pipeline bottom fixedly connected with low pressure pipe network, second pipeline left side fixedly connected with fourth pipeline, be provided with the second hydraulic pressure equalizing valve on the fourth pipeline, the fourth pipeline left end is connected with first pipeline.
In a preferred embodiment, the ejector left end fixedly connected with third pipeline, third pipeline left end fixedly connected with third surge pressure equalizing valve, the third surge pressure equalizing valve is at the manual blind plate valve of third pipeline upper end fixedly connected with second, manual blind plate valve of second is gone up to volume and is provided with manual regulation butterfly valve on the third pipeline, third pipeline bottom fixedly connected with clean gas house steward.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. in the utility model, the system automatically adjusts the gas discharge according to the pressure, thereby improving the gas recovery effect and realizing the function of automatically controlling the gas discharge;
2. the utility model discloses in, the gas recovery storehouse body has adopted the mode of going up admitting air, and the sack lower part has designed the horn mouth, can play the effect of gravity dust remover during the recovery, and the gas damages the phenomenon to the washing away of sack when having solved down and admitting air simultaneously, has improved the life of device.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The labels in the figure are: 1-manual ball valve, 2-fourth manual eye valve, 3-third pressure equalizing blow-off valve, 4-second pressure equalizing blow-off valve, 5-third manual eye valve, 6-first pressure equalizing blow-off valve, 8-first pressure equalizing valve, 9-first manual eye valve, 10-low pressure pipe network, 11-electric butterfly valve, 12-second pipeline, 13-ejector, 14-first pipeline, 15-check valve, 16-manual blind plate valve, 17-second hydraulic pressure equalizing valve, 18-high pressure pipe network, 19-gravity dust remover, 20-third hydraulic pressure equalizing valve, 21-manual adjusting butterfly valve, 22-third pipeline, 23-second manual blind plate valve, 25-gas recovery cabin, 26-clean gas heating pipeline, 27-cloth bag, 28-lattice plate, 29-second manual eye valve, 30-second pressure equalizing valve, 31-furnace top large platform, 32-clean gas main pipe, 33-first hydraulic pressure equalizing valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1, a novel furnace top gas recovery device comprises a furnace top large platform 31, wherein two ends of the furnace top large platform 31 are fixedly connected with a gas recovery pipe, a communicating pipe is arranged at the upper end of the gas recovery pipe, a first manual eye valve 9 is arranged at the left end of the gas recovery pipe, a second manual eye valve 29 is arranged at the right end of the gas recovery pipe, a first pressure equalizing blow-off valve 6 is arranged at the upper end of the first manual eye valve 9, when the pressure is less than or equal to 100KPa, the first pressure equalizing blow-off valve 6 is opened, then the gas is emptied and blown off through the furnace top large platform 31, a first pressure equalizing valve 8 is arranged at the upper end of the left side of the communicating pipe, a third manual eye valve 5 is arranged at the upper end of the first pressure equalizing valve 8, a second pressure equalizing valve 30 is arranged at the upper end of the right side of the communicating pipe, a second pressure equalizing blow-off valve 4 and a third pressure equalizing blow-off valve 3 are arranged at, when the pressure of the furnace top large platform 31 is reduced to about 30KPa, the third pressure-equalizing bleeding valve 3 is closed, and the second pressure-equalizing bleeding valve 4 is closed, so that the coal gas can be discharged through the furnace top large platform 31, the upper end of the third pressure-equalizing bleeding valve 3 is connected with the fourth manual eye valve 2, the coal gas recovery pipe is connected with a bypass pipeline, and the bypass pipeline is provided with a manual ball valve 1.
It should be noted that the bottom of the right end of the gas recovery pipe is fixedly connected inside the gas recovery bin 25, a lattice plate 28 is arranged inside the gas recovery bin 25, a cloth bag 27 is fixedly connected at the joint of the gas recovery bin 25 and the bottom of the gas recovery pipe, a clean gas heating pipeline 26 is fixedly connected at the left side of the lower end of the gas recovery bin 25, the gas recovery bin 25 adopts an upper air inlet mode, a horn mouth is designed at the lower part of the cloth bag 27, the effect of the gravity dust collector 19 can be achieved during recovery, and meanwhile, the phenomenon that gas erodes and damages the cloth bag 227 during lower air inlet is solved.
It should be noted that the top end of the communicating pipe is connected with a collecting pipeline, the lower end of the collecting pipeline is fixedly connected with a gravity dust collector 19, and the bottom of the gravity dust collector 19 is connected with the high-pressure pipe network 18 through the collecting pipeline.
It should be noted that the right end of the gas recovery bin body 25 is fixedly connected with a first pipeline 14, the right side of the first pipeline 14 is provided with a first hydraulic pressure equalizing valve 33, the right side of the first hydraulic pressure equalizing valve 33 is provided with a check valve 15 on the first pipeline 14, the bottom of the first pipeline 14 is fixedly connected to the ejector 13, and the right side of the ejector 13 is fixedly connected with a second pipeline 12.
It should be noted that the lower end of the second pipeline 12 is connected with a manual blind plate valve 16, the lower end of the manual blind plate valve 16 is fixedly connected with an electric butterfly valve 11 on the second pipeline 12, the bottom of the second pipeline 12 is fixedly connected with a low-pressure pipe network 10, the left side of the second pipeline 12 is fixedly connected with a fourth pipeline, a second hydraulic pressure equalizing valve 17 is arranged on the fourth pipeline, and the left end of the fourth pipeline is connected with the first pipeline 14.
It should be noted that the left end of the injector 13 is fixedly connected with a third pipeline 22, the left end of the third pipeline 22 is fixedly connected with a third hydraulic pressure equalizing valve 20, the third hydraulic pressure equalizing valve 20 is fixedly connected with a second manual blind plate valve 23 at the upper end of the third pipeline 22, the second manual blind plate valve 23 is provided with a manual adjusting butterfly valve 21 on the third pipeline 22, and the bottom of the third pipeline 22 is fixedly connected with a clean gas main pipe 32.
The working principle is as follows: the operation process of the device has three modes, and the system automatically adjusts according to the pressure: when the pressure is less than or equal to 100KPa, the mode I is as follows: the gas is emptied and diffused through the furnace top large platform 31 by opening the first pressure equalizing diffusion valve 6; when the pressure is more than 100KPa and less than or equal to 140KPa, the mode II (gas part recovery) is as follows: opening the third pressure-equalizing relief valve 3, closing the third pressure-equalizing relief valve 3 when the pressure of the large platform 31 on the furnace top is reduced to about 30KPa, and closing the second pressure-equalizing relief valve 4 at the same time, so that the gas can be discharged through the large platform 31 on the furnace top; when 140KPa is less than pressure, mode III (gas full recovery): open third pressure-equalizing relief valve 3, when the big platform 31 internal pressure of furnace roof is 30KPa probably, close second hydraulic pressure-equalizing valve 17, open third pressure-equalizing valve 20 and first pressure-equalizing valve 33 that surges simultaneously, the third pressure-equalizing valve 20 that surges is used for drawing power gas, first pressure-equalizing valve 33 that surges is used for drawing the middling pressure gas that penetrates, when the big platform 31 internal pressure of furnace roof falls below 9 KPa (draw and penetrate the completion), close third pressure-equalizing relief valve 3, open second hydraulic pressure-equalizing valve 17 simultaneously, close three pressure-equalizing valve 20 that surges and first pressure-equalizing valve 33 that surges, big platform 31 of furnace roof discharges coal gas.
The coal gas recovery bin body 25 adopts an upper air inlet mode, and the lower part of the cloth bag 27 is provided with a bell mouth, so that the effect of the gravity dust collector 19 can be achieved during recovery, and the phenomenon that coal gas erodes and damages the cloth bag 227 during lower air inlet is solved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a novel top gas recovery device, includes big platform of furnace top (31), its characterized in that: the furnace top large platform (31) is fixedly connected with gas recovery pipes at two ends, a communicating pipe is arranged at the upper end of each gas recovery pipe, a first manual eye valve (9) is arranged at the left end of each gas recovery pipe, a second manual eye valve (29) is arranged at the right end of each gas recovery pipe, a first pressure equalizing and releasing valve (6) is arranged at the upper end of each first manual eye valve (9), a first pressure equalizing valve (8) is arranged at the upper end of the left side of each communicating pipe, a third manual eye valve (5) is arranged at the upper end of each first pressure equalizing valve (8), a second pressure equalizing and releasing valve (30) is arranged at the upper end of the right side of each communicating pipe, a second pressure equalizing and releasing valve (4) and a third pressure equalizing and releasing valve (3) are arranged at the upper end of each second manual eye valve (29), a fourth manual eye valve (2) is connected at the upper end of each third pressure equalizing and releasing valve (3, and a manual ball valve (1) is arranged on the bypass pipeline.
2. The novel top gas recovery device of claim 1, wherein: the bottom of the right end of the gas recovery pipe is fixedly connected inside a gas recovery bin body (25), a lattice plate (28) is arranged inside the gas recovery bin body (25), a cloth bag (27) is fixedly connected at the joint of the gas recovery bin body (25) and the bottom of the gas recovery pipe, and a clean gas heating pipeline (26) is fixedly connected to the left side of the lower end of the gas recovery bin body (25).
3. The novel top gas recovery device of claim 1, wherein: the top end of the communicating pipe is connected with a collecting pipeline, the lower end of the collecting pipeline is fixedly connected with a gravity dust collector (19), and the bottom of the gravity dust collector (19) is connected with a high-pressure pipe network (18) through the collecting pipeline.
4. The novel top gas recovery device of claim 2, wherein: the coal gas recovery storehouse body (25) right-hand member fixedly connected with first pipeline (14), first pipeline (14) right side is provided with first pressure equalizing valve (33) that surges, first pressure equalizing valve (33) right side is provided with check valve (15) on first pipeline (14) that surges, first pipeline (14) bottom fixed connection is on ejector (13), ejector (13) right side fixedly connected with second pipeline (12).
5. The novel top gas recovery device of claim 4, wherein: the hydraulic pressure equalizing valve is characterized in that the lower end of the second pipeline (12) is connected with a manual blind plate valve (16), the lower end of the manual blind plate valve (16) is fixedly connected with an electric butterfly valve (11) on the second pipeline (12), the bottom of the second pipeline (12) is fixedly connected with a low-pressure pipe network (10), the left side of the second pipeline (12) is fixedly connected with a fourth pipeline, a second hydraulic pressure equalizing valve (17) is arranged on the fourth pipeline, and the left end of the fourth pipeline is connected with the first pipeline (14).
6. The novel top gas recovery device of claim 4, wherein: ejector (13) left end fixedly connected with third pipeline (22), third pipeline (22) left end fixedly connected with third surge equalizing valve (20), the third surge equalizing valve (20) is at the manual blind plate valve of third pipeline (22) upper end fixedly connected with second (23), manual regulation butterfly valve (21) are provided with in volume on third pipeline (22) on the manual blind plate valve of second (23), third pipeline (22) bottom fixedly connected with clean gas house steward (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021510645.7U CN213113391U (en) | 2020-07-28 | 2020-07-28 | Novel furnace top gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021510645.7U CN213113391U (en) | 2020-07-28 | 2020-07-28 | Novel furnace top gas recovery device |
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| Publication Number | Publication Date |
|---|---|
| CN213113391U true CN213113391U (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021510645.7U Active CN213113391U (en) | 2020-07-28 | 2020-07-28 | Novel furnace top gas recovery device |
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| Country | Link |
|---|---|
| CN (1) | CN213113391U (en) |
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2020
- 2020-07-28 CN CN202021510645.7U patent/CN213113391U/en active Active
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