CN211328556U - Gravity dust remover - Google Patents
Gravity dust remover Download PDFInfo
- Publication number
- CN211328556U CN211328556U CN201921944848.4U CN201921944848U CN211328556U CN 211328556 U CN211328556 U CN 211328556U CN 201921944848 U CN201921944848 U CN 201921944848U CN 211328556 U CN211328556 U CN 211328556U
- Authority
- CN
- China
- Prior art keywords
- steam
- dust
- bin
- inlet pipe
- steam heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model relates to a gravity dust collector, which comprises a dust collection bin, an air inlet pipe and a steam heater, wherein the upper end of the dust collection bin is provided with an air inlet, and the lower end of the dust collection bin is provided with an ash discharge port; the air inlet pipe is connected with an air inlet of the dust removing bin and extends into the dust removing bin; the upper part of the dust removing bin is also provided with a semi-clean gas outlet; the steam heater is arranged in the dust removal bin and is positioned below the air inlet pipe, a steam inlet pipe and a condensed water outlet pipe of the steam heater respectively penetrate through the side wall of the dust removal bin, and the steam inlet pipe of the steam heater is connected with a steam outlet of an external steam generator. The utility model provides an among the prior art because of the lower technical problem who produces the dewfall easily in the dust remover of raw coke oven gas temperature.
Description
Technical Field
The utility model relates to a blast furnace gas gravity dust collector, in particular to a gravity dust collector for improving the temperature of gas and preventing condensation.
Background
At present, the blast furnace gas purification and recovery process comprises the following steps: the dust-containing raw gas is subjected to coarse dust removal by a gravity dust remover and then enters a dry bag dust remover for fine dust removal.
The gravity dust collector is one of indispensable facilities in modern blast furnace ironmaking, and has the main function of primarily removing dust from raw gas generated by a blast furnace, namely removing large-particle dust in the raw gas and lightening the load for dry cloth bag dust removal in the subsequent process. In the gravity dust collector, large-particle dust in the raw gas overcomes the rising resistance of the raw gas and falls to a lower dust hopper of the gravity dust collector under the action of the gravity of the dust collector, so that the purpose of dust removal is achieved. In the low-temperature gas dust removal system, however, condensation is easily generated due to low temperature of raw gas, so that equipment corrosion and blockage of an ash discharge port are caused; and the condensed gas entering the dry-method bag dust collector can wet the bag, thereby causing the result that the filter bag cannot be used.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gravity dust collector to solve among the prior art because of the lower technical problem who produces the dewfall easily of raw coke oven gas temperature.
In order to solve the problems, the utility model provides a gravity dust collector, which comprises a dust collection bin, an air inlet pipe and a steam heater, wherein the upper end of the dust collection bin is provided with an air inlet, and the lower end of the dust collection bin is provided with an ash discharge port; the air inlet pipe is connected with an air inlet of the dust removing bin and extends into the dust removing bin; the upper part of the dust removing bin is also provided with a semi-clean gas outlet;
the steam heater is arranged in the dust removal bin and is positioned below the air inlet pipe, a steam inlet pipe and a condensed water outlet pipe of the steam heater respectively penetrate through the side wall of the dust removal bin, and the steam inlet pipe of the steam heater is connected with a steam outlet of an external steam generator.
Preferably, the steam heater is made of at least one heat exchange tube wound in a cylindrical spiral shape.
Preferably, the heat exchange tube of the steam heater is made of corrosion-resistant materials or subjected to corrosion-resistant surface treatment.
Preferably, the steam heater is arranged in the dust removal bin through a hanging device.
Preferably, the steam heater and the hanging device are fixed through a single hanging point.
Preferably, a steam inlet and a condensed water outlet are respectively formed in the side wall of the dust removing bin, and the outer wall of a steam inlet pipe of the steam heater is hermetically connected with the steam inlet; and the outer wall of a condensed water outlet pipe of the steam heater is hermetically connected with the condensed water outlet.
Preferably, the upper part of the dust removal bin is also provided with a bleeding valve interface.
Preferably, the air inlet pipe comprises an inlet pipe and a flared pipe which are communicated with each other, the inlet pipe is connected from an air inlet of the dust removal bin and extends to the middle part of the dust removal bin, the flared pipe is positioned below the inlet pipe, and the lower end of the inlet pipe is fixedly connected with the small-diameter end of the flared pipe;
the steam heater is positioned right below the large-diameter end of the flared tube.
Preferably, the outer diameter of the steam heater is larger than that of the large-diameter end of the flared tube.
Preferably, the dust removal bin comprises an upper cone, a middle straight barrel and a lower inverted cone which are sequentially communicated, the air inlet, the semi-clean gas outlet and the bleeding valve interface are all arranged on the upper cone, and the ash discharge port is arranged at the lower end of the lower inverted cone;
the steam heater is positioned between the middle straight barrel body and the lower inverted cone body.
Compared with the prior art, the utility model discloses there are following technological effect:
the utility model provides a gravity dust collector heats the lower raw coke oven gas of temperature in to the dust removal storehouse through steam heater, prevents raw coke oven gas dewfall and causes the jam of equipment corrosion and ash discharge mouth, drenches the sack when also preventing the coal gas of dewfall from getting into dry process sack cleaner, and then causes the consequence that the filter bag can't be used.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts. In the drawings:
fig. 1 is a schematic structural diagram of a gravity dust collector according to a preferred embodiment of the present invention
Fig. 2 is a top view of a gravity dust collector according to a preferred embodiment of the present invention.
Detailed Description
The gravity dust collector provided by the present invention will be described in detail with reference to fig. 1 and 2, and this embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments, and those skilled in the art can modify and color the gravity dust collector without changing the spirit and content of the present invention.
Referring to fig. 1 and 2, a gravity dust collector includes a dust collection bin 1, an air inlet pipe 2 and a steam heater 4, wherein an air inlet is formed at the upper end of the dust collection bin 1, and an ash discharge port 131 is formed at the lower end of the dust collection bin; the air inlet pipe 2 is connected from an air inlet of the dust removing bin 1 and extends into the dust removing bin 1; the upper part of the dust removing bin 1 is also provided with a semi-clean gas outlet 111;
the steam heater 4 is arranged in the dust removing bin 1 and is positioned below the air inlet pipe 2, a steam inlet pipe 41 and a condensed water outlet pipe 42 of the steam heater 4 respectively penetrate through the side wall of the dust removing bin 1, and the steam inlet pipe 41 of the steam heater 4 is connected with a steam outlet of an external steam generator. In order to improve the thermal efficiency, the present embodiment preferably arranges the steam heater 4 at the lower portion of the dust removing compartment 1.
In this embodiment, the dust removing bin 1 includes an upper cone 11, a middle straight cylinder 12 and a lower inverted cone 13 which are sequentially communicated, in this embodiment, the upper cone 11, the middle straight cylinder 12 and the lower inverted cone 13 are an integral structure, the upper cone 11 is provided with an air inlet, a semi-clean gas outlet 111 and a bleeding valve interface 112, the air inlet is located at the top end of the upper cone 11, and the semi-clean gas outlet 111 and the bleeding valve interface 112 are located at two sides of the upper cone 11; the ash discharge port 131 is formed at the lower end of the lower inverted cone 13.
The air inlet pipe 2 comprises an inlet pipe 21 and a flared pipe 22 which are communicated with each other, the inlet pipe 21 is connected from the air inlet and extends to the middle lower part of the middle straight cylinder 12, the flared pipe 22 is positioned below the inlet pipe 21, and the lower end of the inlet pipe 21 is fixedly connected with the small-diameter end of the flared pipe 22; in this embodiment, the outer wall of the intake pipe 2 is hermetically connected to the intake port.
The steam heater 4 is located right below the large-diameter end of the flared tube 22 and between the middle straight cylinder 12 and the lower inverted cone 13. In order to heat all the raw gas flowing out of the bell pipe 22 by the steam heater 4, the width of the steam heater 4 is larger than the diameter of the large-diameter end of the bell pipe 22, and the large-diameter end of the bell pipe 22 is next to the upper end of the steam heater 4. In the present embodiment, the steam heater 4 is made of at least one heat exchange tube wound in a cylindrical spiral shape, and thus, the spiral diameter of the cylindrical spiral heat exchange tube is larger than the diameter of the large-diameter end of the bell-shaped tube 22.
A steam inlet is formed in the side wall of the middle straight cylinder body 12, a condensed water outlet is formed in the side wall of the lower inverted cone body 13, the outer wall of a steam inlet pipe 41 of the steam heater 4 is hermetically connected with the steam inlet, and the steam inlet pipe 41 of the steam heater 4 is connected with a steam outlet of an external steam generator; the outer wall of the condensed water outlet pipe 42 of the steam heater is hermetically connected with the condensed water outlet.
In this embodiment, the temperature of the steam introduced into the steam inlet pipe 41 of the steam heater 4 by the external steam generator is about 160 ℃.
The steam heater 4 is hung in the dust removal bin 1 through the hanging device 3, and the steam heater 4 and the hanging device 3 are fixed through a single hanging point. The utility model discloses do not restrict hanging device 3's concrete structure, as long as can hang steam heater 4 can in the dust removal storehouse 1. In this embodiment, the hanging device 3 is fixed on the inner wall of the dust removing bin 1 through bolts, one point of the heat exchange tube of the steam heater 4 is fixedly connected with the hanging device 3, and other points are all in a suspended state, so that when steam is introduced into the steam heater 4, the heat exchange tube can generate displacement and retract into the cooling chamber along with the rise of temperature, and the embodiment adopts a single hanging point fixing mode, and reliably absorbs the displacement generated by the heat exchange tube due to expansion with heat and contraction with cold.
In the present embodiment, the heat exchange pipe of the steam heater 4 is made of a corrosion-resistant material or a corrosion-resistant surface treatment to improve its service life and reliability.
In the present embodiment, the steam heater 4 does not contact the inner wall of the dust removing bin 1.
In this embodiment, the middle straight cylinder 12 is further provided with a manhole 121, and the outer sidewall of the lower inverted cone 13 is provided with the bin wall vibrator 5, so as to facilitate discharge of large particle dust.
The utility model discloses a theory of operation:
raw coke oven gas enters the dust removal bin 1 through the air inlet pipe 2, and steam enters the heat exchange pipe of the steam heater 4 through the steam inlet pipe 41 so as to heat the raw coke oven gas outside the heat exchange pipe, improve the temperature of the raw coke oven gas and prevent the gas from dewing.
The utility model is used for among the intermittent type formula low temperature coal gas dust pelletizing system, if use in blast furnace voltage-sharing coal gas recovery system for promote the raw coke oven gas temperature, prevent the dewfall.
The disclosure above is only one specific embodiment of the present application, but the present application is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present application.
Claims (10)
1. A gravity dust collector is characterized by comprising a dust collection bin, an air inlet pipe and a steam heater, wherein the upper end of the dust collection bin is provided with an air inlet, and the lower end of the dust collection bin is provided with an ash discharge port; the air inlet pipe is connected with an air inlet of the dust removing bin and extends into the dust removing bin; the upper part of the dust removing bin is also provided with a semi-clean gas outlet;
the steam heater is arranged in the dust removal bin and is positioned below the air inlet pipe, a steam inlet pipe and a condensed water outlet pipe of the steam heater respectively penetrate through the side wall of the dust removal bin, and the steam inlet pipe of the steam heater is connected with a steam outlet of an external steam generator.
2. The gravity dust collector as claimed in claim 1, wherein the steam heater is made of at least one heat exchange tube wound in a cylindrical spiral shape.
3. A gravity dust collector as claimed in claim 2, wherein the heat exchange tubes of the steam heater are made of a corrosion resistant material or a corrosion resistant surface treatment.
4. The gravity dust collector as claimed in claim 1, wherein the steam heater is disposed in the dust removing compartment by a hanging means.
5. The gravity dust collector of claim 4, wherein the steam heater and the hanging device are fixed by a single hanging point.
6. The gravity dust collector of claim 1, wherein a steam inlet and a condensed water outlet are respectively formed on the side wall of the dust collection bin, and the outer wall of a steam inlet pipe of the steam heater is hermetically connected with the steam inlet; and the outer wall of a condensed water outlet pipe of the steam heater is hermetically connected with the condensed water outlet.
7. The gravity dust collector as claimed in claim 1, wherein the upper part of the dust collecting bin is further provided with a bleeding valve interface.
8. The gravity dust collector of claim 7, wherein the inlet pipe comprises an inlet pipe and a flared pipe which are communicated with each other, the inlet pipe is connected to the air inlet of the dust removing bin and extends to the middle part of the dust removing bin, the flared pipe is positioned below the inlet pipe, and the lower end of the inlet pipe is fixedly connected with the small-diameter end of the flared pipe;
the steam heater is positioned right below the large-diameter end of the flared tube.
9. The gravity dust collector of claim 8, wherein an outer diameter of the steam heater is larger than an outer diameter of the large diameter end of the bell pipe.
10. The gravity dust collector of claim 8, wherein the dust removing bin comprises an upper cone, a middle straight cylinder and a lower inverted cone which are sequentially communicated, the air inlet, the semi-clean gas outlet and the blow-off valve port are all arranged on the upper cone, and the ash discharge port is arranged at the lower end of the lower inverted cone;
the steam heater is positioned between the middle straight barrel body and the lower inverted cone body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921944848.4U CN211328556U (en) | 2019-11-12 | 2019-11-12 | Gravity dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921944848.4U CN211328556U (en) | 2019-11-12 | 2019-11-12 | Gravity dust remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211328556U true CN211328556U (en) | 2020-08-25 |
Family
ID=72132778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921944848.4U Active CN211328556U (en) | 2019-11-12 | 2019-11-12 | Gravity dust remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211328556U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551534A (en) * | 2021-07-20 | 2021-10-26 | 成都易态科技有限公司 | Air inlet channel, gravity dust remover, pre-dust removing method and dust removing system |
-
2019
- 2019-11-12 CN CN201921944848.4U patent/CN211328556U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551534A (en) * | 2021-07-20 | 2021-10-26 | 成都易态科技有限公司 | Air inlet channel, gravity dust remover, pre-dust removing method and dust removing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202254893U (en) | Flue gas radiation-type waste heat boiler recovery system for electric arc furnace | |
| CN202902316U (en) | Smoke water cooling dust collecting device | |
| CN201684496U (en) | High-temperature dust remover | |
| CN108434910B (en) | Dust removal method and production system for production of organic silicon and polycrystalline silicon | |
| CN211328556U (en) | Gravity dust remover | |
| CN209193911U (en) | A kind of duct type coal gas baffling dehydrator | |
| CN106731330B (en) | The dust-collecting and heat exchanging integrated treatment unit and method of a kind of pair of high-temperature dust-containing flue gas | |
| CN104548842A (en) | Cyclone diffusion type smoke prevention and dust control device and smoke prevention and dust control method | |
| CN102322746A (en) | Electric arc furnace smoke radiation type waste heat boiler recovery system | |
| CN107520049A (en) | A kind of multistage combined mesh electrode coal dust dust-precipitator | |
| CN104089492B (en) | Close the purification of mineral hot furnace coal gas dry-method and recovery system | |
| CN103939925B (en) | In The Sub-mergedfurnace of The Ferroalloys ash cleaner for exhaust-heating boiler | |
| CN211328557U (en) | Bag-type dust collector | |
| CN104587754A (en) | Parallel ceramic multi-tube cyclone dust collector and method for carrying out dust collection | |
| CN104001402A (en) | Off-gas treatment system | |
| CN212299972U (en) | Flue gas waste heat recovery device with spark capture function | |
| CN210426141U (en) | Heat storage temperature equalization dust reduction chamber for electric furnace | |
| CN210741127U (en) | Cement kiln flue gas purification treatment system | |
| CN105087854B (en) | Converter high-temperature flue gas dry method dust and process waste heat staged reclaimer and method | |
| CN212058351U (en) | Aluminum hydroxide roasting furnace flue gas phase change dust removal waste heat recovery device | |
| CN101230295B (en) | Blast furnace gas nonaqueous dust cleaner | |
| CN203625414U (en) | Dry cloth-bag dust removal device for carbon steel converter capable of recovering waste heat in whole process | |
| CN201493188U (en) | Combined type cyclone separation settlement cooler | |
| CN203360402U (en) | Novel coal gas filtration and purification device | |
| CN202692628U (en) | System for drying ammonium sulphate airflow by residual heat recovery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |