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CN111363593A - Ash discharging device of dry-wet dual-purpose gravity dust collector - Google Patents

Ash discharging device of dry-wet dual-purpose gravity dust collector Download PDF

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Publication number
CN111363593A
CN111363593A CN201811602096.3A CN201811602096A CN111363593A CN 111363593 A CN111363593 A CN 111363593A CN 201811602096 A CN201811602096 A CN 201811602096A CN 111363593 A CN111363593 A CN 111363593A
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CN
China
Prior art keywords
dust
ash
pipe
steel wire
wire rope
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Pending
Application number
CN201811602096.3A
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Chinese (zh)
Inventor
周荣斌
龚宪
陈富良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Meishan Iron and Steel Co Ltd
Original Assignee
Shanghai Meishan Iron and Steel Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Meishan Iron and Steel Co Ltd filed Critical Shanghai Meishan Iron and Steel Co Ltd
Priority to CN201811602096.3A priority Critical patent/CN111363593A/en
Publication of CN111363593A publication Critical patent/CN111363593A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10KPURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00Purifying combustible gases containing carbon monoxide
    • C10K1/02Dust removal

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

The invention relates to an ash discharging device of a dry-wet dual-purpose gravity dust collector, which comprises a dust humidifying stirrer and a tank car, wherein a first discharge port is arranged at the lower end of the dust humidifying stirrer, a feed port is arranged at the upper end of the tank car, an ash discharging device is arranged between the dust humidifying stirrer and the tank car, the ash discharging device comprises an ash discharging pipe outer sleeve, a rubber hose, a dust removing interface, a lifting mechanism, a power mechanism, a track, a first traction steel wire rope and a second traction steel wire rope, two ends of the track are respectively connected with the power mechanism through the first traction steel wire rope, an ash discharging pipe inner sleeve and an ash discharging pipe are arranged on the track, the outer side of the ash discharging pipe inner sleeve is provided with the ash discharging pipe outer sleeve, the upper end of the ash discharging pipe outer sleeve is connected with the track, the lower end of the ash; the invention can be used for switching the dry ash discharging mode and the wet ash discharging mode of the gravity dust collector, thereby effectively improving the ash discharging efficiency.

Description

Ash discharging device of dry-wet dual-purpose gravity dust collector
Technical Field
The invention relates to an ash discharging device of a dry-wet gravity dust collector, belonging to the technical field of blast furnace iron making.
Background
Blast furnace iron making is still the main process mode of iron making at the present stage, the stability and the smooth running of the blast furnace are the basis of all economic and technical indexes, the environmental pollution is reduced, and the ultra-clean emission standard is the primary index for the survival of the blast furnace iron making.
The blast furnace gas containsThe calorific value of combustible gas such as carbon oxide, hydrogen and the like is greater than 3140.1 kilojoules, the gas quantity is large, the user is wide, and the fuel is an important fuel for steel plants. However, the blast furnace gas discharged from the top of the blast furnace contains a large amount of dust, generally up to 10-40 g/Nm3Dust, some of which can reach 60-100 g/Nm3The dust is mainly based on the conditions of furnace charge sieving condition, powder rate, furnace top pressure, smelting strength, gas flow rate, gas temperature and the like, so that blast furnace raw gas must be purified by a group of dust removing equipment to reduce the dust content to 5-10 g/Nm3Then the next procedure is carried out to continue dedusting. The gravity dust collector is a first dust collector for blast furnace raw gas, the raw gas enters the gravity dust collector from the upper part, the flow of the raw gas is suddenly reversed by 180 degrees, gas ash in the raw gas leaves air flow due to inertia force and gravity, is settled to the bottom of the gravity dust collector, and is discharged through ash removal equipment.
After being discharged, the gas ash can be discharged into vehicles or other devices through different processes and transported to a sintering plant for reuse. The gas ash has smaller particles and higher temperature, so that on-site dust emission with different degrees is often caused in the discharge process. In order to reduce environmental pollution, a dust humidifying and stirring machine type dust discharging method is generally adopted, the method is low in cost, equipment is safe and reliable to operate, certain dust still exists, in order to further reduce environmental pollution, a dry type dust discharging method is adopted and directly placed into a tank car, a dust suction pipe is arranged at an interface to avoid dust rising, and the method basically reaches an ultra-clean emission standard. However, when the blast furnace is abnormally produced, the gas ash in the gravity dust collector reaches more than 300 ℃, and if a tank car is adopted to convey the gas ash, the parts such as a tank car hose, a connector seal and the like are damaged. The method needs to be changed into a dust stirrer for humidifying and discharging ash, reduces the temperature of gas ash, and adopts a truck for conveying, so that the problem to be solved by a plurality of manufacturers is how to quickly and effectively discharge ash.
Disclosure of Invention
The invention provides an ash discharging device of a dry-wet dual-purpose gravity dust collector, aiming at the defects in the prior art and solving the problems in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a dust discharging device of a dry-wet dual-purpose gravity dust collector comprises a dust humidifying stirrer and a tank car, wherein a first discharge port is formed in the lower end of the dust humidifying stirrer, a feed port is formed in the upper end of the tank car, a dust discharging device is arranged between the dust humidifying stirrer and the tank car, the dust discharging device comprises a lower dust pipe outer sleeve, a rubber hose, a dust removing interface, a lifting mechanism, a power mechanism, a track, a first traction steel wire rope and a second traction steel wire rope, two ends of the track are respectively connected with the power mechanism through the first traction steel wire rope, a lower dust pipe inner sleeve and a lower dust pipe are arranged on the track, a lower dust pipe outer sleeve is arranged outside the lower dust pipe inner sleeve, the upper end of the lower dust pipe outer sleeve is connected with the track, the lower end of the lower dust pipe outer sleeve is connected with the dust removing interface through the rubber hose, two ends of the dust removing interface are respectively, the lower end of the dust removal connector corresponds to the feed inlet, the upper end of the ash discharge pipe corresponds to the first discharge hole, and the lower end of the ash discharge pipe corresponds to the feed inlet.
As an improvement of the invention, the dust removal interface is provided with a dust suction device, the dust suction device comprises a dust suction pipe and a dust suction hose, and the dust removal interface is connected with the dust suction pipe through the dust suction hose.
As an improvement of the invention, a vibrator is arranged outside the ash discharging pipe.
As a modification of the invention, the lower ash pipe is arranged on the right side of the inner lining of the lower ash pipe.
As an improvement of the invention, the bottom end of the outer sleeve of the ash discharge pipe is provided with a second discharge hole, and the second discharge hole is arranged in the dust removal interface.
As an improvement of the invention, the diameter of the second discharge hole is smaller than that of the dust removal interface.
As an improvement of the invention, the power mechanism comprises a translation motor, a coupler and a steel wire rope reel, wherein the translation motor is connected with the steel wire rope reel through the coupler, and the steel wire rope reel is connected with the first traction steel wire rope.
As an improvement of the invention, the lifting mechanism comprises a lifting motor, a coupler and a steel wire rope reel, wherein the lifting motor is connected with the steel wire rope reel in a limited purchase mode through the coupler, and the steel wire rope reel is connected with the second traction steel wire rope.
Compared with the prior art, the invention has the following beneficial effects because the technology is adopted:
the ash discharging device for the dry-wet gravity dust collector has the advantages of simple structure, safety, reliability, convenience in use and low cost, can be used for switching the dry ash discharging mode and the wet ash discharging mode of the gravity dust collector, and can select the ash discharging mode according to the requirement, so that the ash discharging efficiency can be effectively improved.
Drawings
FIG. 1 is a schematic structural diagram of an ash discharging device of a wet and dry gravity dust collector;
FIG. 2 is a schematic structural view of a dry ash discharge pipe of a wet and dry gravity dust collector;
FIG. 3 is a schematic structural view of a wet ash discharge pipe of a wet-dry gravity dust collector;
in the figure: 1. the dust removal device comprises a lower dust pipe inner bushing, 2 a lower dust pipe outer bushing, 3 a rubber hose, 4 a dust removal interface, 5 a first traction steel wire rope, 6 a lifting motor, 7 a dust collection hose, 8 a dust collection pipe, 9 a lower dust pipe, 10 a vibrator, 11 a track, 12 a translation motor, 13 a second traction steel wire rope, 14 a dust humidifying stirrer, 15 a first discharge port, 16 a tank car, 17 a feed port, 18 and a second discharge port.
Detailed Description
The invention is further elucidated with reference to the drawings and the detailed description.
Example 1:
as can be seen by combining the attached drawings, the dust discharging device of the dry and wet dual-purpose gravity dust collector comprises a dust humidifying stirrer 14 and a tank car 16, wherein a first discharge port 15 is formed in the lower end of the dust humidifying stirrer 14, a feed port 17 is formed in the upper end of the tank car 16, a dust discharging device is arranged between the dust humidifying stirrer 14 and the tank car 16 and comprises a lower dust pipe outer sleeve 2, a rubber hose 3, a dust removing interface 4, a lifting mechanism, a power mechanism, a track 11, a first traction steel wire rope 5 and a second traction steel wire rope 13, two ends of the track 11 are respectively connected with the power mechanism through the first traction steel wire rope 5, a lower dust pipe inner sleeve 1 and a lower dust pipe 9 are arranged on the track 11, the lower dust pipe outer sleeve 2 is arranged outside the lower dust pipe inner sleeve 1, the upper end of the lower dust pipe outer sleeve 2 is connected with the track 11, the lower end of the lower dust, the two ends of the dust removal connector 4 are respectively connected with the lifting mechanism through second traction steel wire ropes 13, the upper end of the lower ash pipe inner bushing 1 corresponds to the first discharge hole 15, the lower end of the dust removal connector 4 corresponds to the feed inlet 17, the upper end of the lower ash pipe 9 corresponds to the first discharge hole 15, and the lower end of the lower ash pipe 9 corresponds to the feed inlet 17.
Example 2:
as an improvement of the present invention, a dust suction device is arranged on the dust removal interface 4, the dust suction device includes a dust suction pipe 8 and a dust suction hose 7, and the dust removal interface 4 is connected with the dust suction pipe 8 through the dust suction hose 7.
The remaining structural features and advantages are exactly the same as those of embodiment 1.
Example 3:
as a modification of the invention, a vibrator 10 is arranged outside the ash discharge pipe 9.
The rest of the structure and advantages are exactly the same as those of embodiment 1.
Example 4:
as a modification of the present invention, the lower ash pipe 9 is disposed on the right side of the lower ash pipe inner liner 1.
The rest of the structure and advantages are exactly the same as those of embodiment 1.
Example 5:
as an improvement of the invention, the bottom end of the ash discharge pipe outer sleeve 2 is provided with a second discharge hole 18, the second discharge hole 18 is arranged in the dust removal connector 4, and the diameter of the second discharge hole 18 is smaller than that of the dust removal connector 4.
The rest of the structure and advantages are exactly the same as those of embodiment 1.
The invention can also combine at least one of the technical characteristics described in the embodiments 2, 3, 4, 5, 6 and 7 with the embodiment 1 into a new embodiment.
The invention has the following specific using process:
the lower ash pipe of the dry-wet dual-purpose gravity dust collector is a split complete set of equipment, and the device adopts a dry or wet ash discharging mode according to the actual production condition.
The power mechanism comprises a translation motor 12, a coupler and a steel wire rope reel, the translation motor 12 is connected with the steel wire rope reel through the coupler, and the steel wire rope reel is connected with the first traction steel wire rope 5. The track 11 is controlled by a translation motor 12 to be switched left and right.
The lifting mechanism comprises a lifting motor 6, a coupler and a steel wire rope reel, the lifting motor 6 is connected with the steel wire rope reel in a limited purchasing mode through the coupler, the steel wire rope reel is connected with a second traction steel wire rope 13, and the dust removal interface 4 is controlled by the lifting motor 6 to move up and down.
When the temperature of gas ash in the gravity dust collector of the blast furnace is higher than 200 ℃, a wet ash discharging pipe is selected for use, the ash discharging device works, the translation motor 12 is reversely rotated, the track 11 drives the device to move leftwards, the ash discharging pipe 9 moves to the first discharge hole 15 of the dust humidifying stirrer 14, the tank car 16 collects dust, the vibrator 10 is intermittently started in the ash discharging process, and the ash deposition of the ash discharging pipe 9 is avoided.
When the temperature of the gas ash in the blast furnace gravity dust collector is lower than 200 ℃, the inner liner 1 of the ash discharge pipe can be selected to be used together with the tank car 16, and the ultra-clean emission standard can be reached during ash discharge operation. When the dust discharging device works, the translation motor 12 rotates forwards, the rail 11 drives the device to move rightwards, the inner liner 1 of the dust discharging pipe and the outer liner 2 of the dust discharging pipe move to the first discharge hole 15 of the dust humidifying stirrer 14, the lifting motor 6 is controlled to move downwards, the dust removing interface 4 corresponds to the feed hole 17 of the tank car 16, dust begins to be discharged, the dust collecting device is started, the dust collector is connected with the dust removing interface 4 through the dust collecting pipe 8 and the dust collecting hose 7, and dust is collected in the dust removing interface 4, so that dust is effectively prevented from overflowing; after the ash is discharged, the lifting motor 6 is controlled to move upwards, the dedusting interface 4 is driven to move upwards, and the ash is discharged.
The method discloses an ash discharging device of a dry-wet dual-purpose gravity dust collector, which is used for switching dry ash discharging modes and wet ash discharging modes of the gravity dust collector. The dust removal interface 4 is provided with a dust suction device which can suck overflowed dust into the dust suction pipe 8, no dust is raised on site, and ultra-clean discharge standard is achieved. The ash discharging pipe 9 is made of stainless steel, the vibrator 10 is attached to the pipe wall, the vibrator 10 is started intermittently, ash accumulation of the ash discharging pipe 9 is avoided, and rapid ash discharging is guaranteed.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention should be defined by the claims, and equivalents including technical features of the claims, i.e., equivalent modifications within the scope of the present invention.

Claims (8)

1. The utility model provides an ash device under wet dual-purpose gravity dust collector futilely which characterized in that: the dust discharging device comprises a dust humidifying stirrer and a tank car, wherein a first discharge hole is formed in the lower end of the dust humidifying stirrer, a feed hole is formed in the upper end of the tank car, a dust discharging device is arranged between the dust humidifying stirrer and the tank car and comprises a lower dust pipe outer sleeve, a rubber hose, a dust removing interface, a lifting mechanism, a power mechanism, a rail, a first traction steel wire rope and a second traction steel wire rope, two ends of the rail are respectively connected with the power mechanism through the first traction steel wire rope, a lower dust pipe inner sleeve and a lower dust pipe are arranged on the rail, a lower dust pipe outer sleeve is arranged on the outer side of the lower dust pipe inner sleeve, the upper end of the lower dust pipe outer sleeve is connected with the rail, the lower end of the lower dust pipe outer sleeve is connected with the dust removing interface through the rubber hose, two ends of the dust removing interface, the lower end of the dust removal connector corresponds to the feed inlet, the upper end of the ash discharge pipe corresponds to the first discharge hole, and the lower end of the ash discharge pipe corresponds to the feed inlet.
2. The ash discharging device of the wet and dry gravity dust collector according to claim 1, wherein: the dust removal connector is provided with a dust suction device, the dust suction device comprises a dust suction pipe and a dust suction hose, and the dust removal connector is connected with the dust suction pipe through the dust suction hose.
3. The ash discharging device of the wet and dry gravity dust collector according to claim 1, wherein: and a vibrator is arranged on the outer side of the ash discharging pipe.
4. The ash discharging device of the wet and dry gravity dust collector according to claim 1, wherein: the lower ash pipe is arranged on the right side of the inner bushing of the lower ash pipe.
5. The ash discharging device of the wet and dry gravity dust collector according to claim 1, wherein: the bottom end of the lower ash pipe outer sleeve is provided with a second discharge hole, and the second discharge hole is formed in the dust removal interface.
6. The dust discharging device of the wet and dry gravity dust collector of claim 5, wherein: the diameter of the second discharge hole is smaller than that of the dust removal interface.
7. The ash discharging device of the wet and dry gravity dust collector according to claim 1, wherein: the power mechanism comprises a translation motor, a coupler and a steel wire rope reel, the translation motor is connected with the steel wire rope reel through the coupler, and the steel wire rope reel is connected with a first traction steel wire rope.
8. The ash discharging device of the wet and dry gravity dust collector according to claim 1, wherein: the lifting mechanism comprises a lifting motor, a coupler and a steel wire rope reel, the lifting motor is connected with the steel wire rope reel in a limited purchasing mode through the coupler, and the steel wire rope reel is connected with a second traction steel wire rope.
CN201811602096.3A 2018-12-26 2018-12-26 Ash discharging device of dry-wet dual-purpose gravity dust collector Pending CN111363593A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811602096.3A CN111363593A (en) 2018-12-26 2018-12-26 Ash discharging device of dry-wet dual-purpose gravity dust collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811602096.3A CN111363593A (en) 2018-12-26 2018-12-26 Ash discharging device of dry-wet dual-purpose gravity dust collector

Publications (1)

Publication Number Publication Date
CN111363593A true CN111363593A (en) 2020-07-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112226572A (en) * 2020-10-23 2021-01-15 芜湖新兴铸管有限责任公司 Dry dedusting and fine ash discharging device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112226572A (en) * 2020-10-23 2021-01-15 芜湖新兴铸管有限责任公司 Dry dedusting and fine ash discharging device

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Application publication date: 20200703