CN104745749A - Liquid-form blast furnace slag granulating device - Google Patents
Liquid-form blast furnace slag granulating device Download PDFInfo
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- CN104745749A CN104745749A CN201310731284.7A CN201310731284A CN104745749A CN 104745749 A CN104745749 A CN 104745749A CN 201310731284 A CN201310731284 A CN 201310731284A CN 104745749 A CN104745749 A CN 104745749A
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- blast furnace
- slag
- furnace slag
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- pelletizer
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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Abstract
The invention discloses a liquid-form blast furnace slag granulation device which comprises a diversion trench, a slag input port, a granulating device, an exhaust port, water sprayers, densely distributed high-pressure jet holes, a slag hopper and a slag discharge port. The diversion trench is made of a refractory material and is mounted on the top of the granulating device. The lower end of the diversion trench is connected with the granulating device by the slag input port. The water sprayers are formed in the side wall of the granulating device. The lower end of the granulating device is provided with the densely distributed high-pressure jet holes. In addition, the exhaust port and the slag discharge port are respectively formed in the side wall and the lower end of the liquid-form blast furnace slag granulating device. According to the invention, a gas phase flow and a liquid phase flow are adopted and enable slag particles to be crushed and solidified to form solid particles in space. Through a high pressure air flow jet effect, the slag particles are dispersed and then contact with water mist in space fully, and the bursting force of water mist vaporizing and swelling at a high speed crushes the liquid-form blast furnace slag. The granulation is sufficient. The activity of the granulated blast furnace slag is good. Power consumption is reduced and water consumption is low. The liquid-form blast furnace slag granulation device has good economic benefits.
Description
Technical field
The present invention relates to a kind of liquid blast furnace slag granulation device, belong to the technical field of blast furnace utilization of metallurgy industry.
Background technology
Blast furnace slag is a kind of silicate material of good performance, can as the raw material producing material of construction and chemical fertilizer by process.Liquid blast furnace is through cooling rapidly, and its inside has little time form crystallizable mineral and a part of chemical energy is stored in the vitreum of formation, thus has higher activity.Blast furnace slag after quenching has potential hydraulic gelling property, and be excellent cement raw material, therefore the blast furnace slag of quenching has the huge market requirement.
Meanwhile, liquid blast furnace temperature, between 1350 DEG C to 1500 DEG C, belongs to high-grade residual heat resources, has very high recycling and is worth.
Just because of the use value of high-temperature liquid state slag, in recent years, various high-temperature liquid state Slag treatment device emerges in an endless stream.Current China liquid blast furnace mainly adopts water quenching quenching, and the blast furnace slag after shrend can be used for producing the material of construction such as cement, and water quenching Problems existing is: water consumption is high; Produce a large amount of H2S and SOX in Water Quenching Slag process and enter air with steam, promote that acid rain is formed, contaminate environment; The sensible heat of blast furnace slag is not recycled utilization; Water Quenching Slag water ratio is high, still needs drying treatment as cement raw material, needs to consume certain energy; System power consumption is large; In flush slag recirculated water, contained fine particle is very serious to the wearing and tearing of the parts such as water pump and valve, and system maintenance work amount is very large, adds maintenance cost.
For the shortcoming of blast furnace cinder water quenching technique; the method of the external dry type chilling granulated bf slag that just begun one's study of 20 century 70s, mainly contain wind and to quench method and centrifugal granulation method, the two is all first that liquid blast furnace is broken; be solidified as small-particle, then take means to reclaim the method for its sensible heat.Technique is reasonable not, and energy consumption is large, is granulated abundant not.
The granulation of liquid blast furnace for the recycling of waste and the Exposure degree of liquid blast furnace all significant, therefore, study a kind of energy consumption low, be granulated effective, structure is simple, and the liquid blast furnace slag granulation method that reliability is high is very necessary.
Summary of the invention
the technical problem solved:
The object of this invention is to provide a kind of energy consumption low, saving water resource, structure is simple, and granulation fully and be beneficial to granulating method and the device of Exposure degree.
technical scheme:
Technical scheme of the present invention is as follows:
A kind of liquid blast furnace slag granulation device, comprise diversion trench, fall cinder notch, pelletizer, venting port, nebulizing spray mouth, and gather high pressure spray pore, slag bucket, slag-drip opening, and diversion trench and the cinder notch that falls are arranged at pelletizer top; Venting port is arranged at above pelletizer side; Pelletizer sidewall is provided with nebulizing spray mouth; Pelletizer bottom is provided with densely covered high pressure spray pore; Pelletizer bottom is provided with slag-drip opening.
Nebulizing spray mouth is in tilted layout, and vergence direction is oblique top.
Nebulizing spray mouth is uniformly distributed in sidewall circumferentially.
Diversion trench refractory materials is made.
The cinder notch that passes through between diversion trench and pelletizer to fall is connected.
beneficial effect:
Beneficial effect of the present invention:
1. after blast furnace slag enters pelletizer by the cinder notch that falls; due to the jet-impingement effect of densely covered high pressure spray pore; slag particle is dispelled; the vaporific water droplet of simultaneously water jet ejection and slag particle contact rapid vaporization aloft and expand and produce bursting force blast furnace slag is broken; fused solution blast furnace slag in shattering process with vaporific water droplet heat exchange, rapid cooled and solidified is blast furnace slag particle.Because this process is carried out in space, granulation is relatively more abundant, and the blast furnace slag after granulation has higher activity.
2. the blast furnace slag particle after solidifying is fallen in the slag bucket of pelletizer bottom, and has slag-drip opening to discharge.The hot gas produced in liquid blast furnace process of setting is discharged by the venting port above side, enters residual neat recovering system, makes heat obtain Appropriate application.
3. in granulating of the present invention, blast furnace slag and spray water xi drop in access, and contact area is large, and the time is long, thus saving water resource.
Accompanying drawing explanation
Fig. 1 is liquid blast furnace slag granulation device schematic diagram provided by the present invention.
In figure: the 1 diversion trench 2 cinder notch 3 pelletizer 4 venting port 5 nebulizing spray mouth 6 that falls gathers high pressure spray pore 7 slag bucket 8 slag-drip opening.
Embodiment
Do one below in conjunction with accompanying drawing to the embodiment of this patent to illustrate:
As shown in Figure 1, a kind of liquid blast furnace slag granulation device, comprises diversion trench 1, and fall cinder notch 2, pelletizer 3, venting port 4, nebulizing spray mouth 5, and gather high pressure spray pore 6, slag bucket 7, slag-drip opening 8, and diversion trench 1 and the cinder notch 2 that falls are arranged at pelletizer top; Venting port 4 is arranged at above pelletizer side; Pelletizer sidewall is provided with nebulizing spray mouth 5; Pelletizer bottom is provided with densely covered high pressure spray pore 6; Pelletizer bottom is provided with slag-drip opening 8.
Nebulizing spray mouth 5 is in tilted layout, and vergence direction is oblique top.
Nebulizing spray mouth 5 is uniformly distributed in sidewall circumferentially.
Diversion trench 1 is made with refractory materials.
The cinder notch 2 that passes through between diversion trench 1 and pelletizer to fall is connected.
During the work of this device; blast furnace slag is entered by diversion trench 1; through falling, cinder notch 2 falls into pelletizer; the blast furnace slag fallen into dispels by the air-flow that the densely covered high pressure spray pore 6 installed in pelletizer ejects; water jet 5 on sidewall sprays vaporific water droplet; vaporific water droplet by with by the liquid blast furnace that dispels at access; rapid vaporization expands thus produces explosive power by blast furnace slag fragmentation by vaporific water droplet; simultaneously fused solution blast furnace slag in shattering process because of with vaporific water droplet heat exchange, rapid cooled and solidified is become blast furnace slag particle.Because liquid blast furnace and spray water xi drop in access, therefore, contact area is large, and fully, whole granulating, without the need to a large amount of water, has saved water resources, and spray water xi drops in granulating and evaporates completely, eliminates wastewater treatment link in contact.Meanwhile, granulating is comparatively abundant, also can keep higher temperature and activity after granulation, and its waste heat grade is higher, and the hot gas produced in granulating and the heat of slag particle all can enter residual neat recovering system recovery waste heat, make resource obtain Appropriate application.
Claims (5)
1. a liquid blast furnace slag granulation device, comprise diversion trench (1), fall cinder notch (2), pelletizer (3), venting port (4), nebulizing spray mouth (5), gather high pressure spray pore (6), slag bucket (7), slag-drip opening (8), is characterized in that: diversion trench (1) and the cinder notch that falls (2) are arranged at pelletizer top; Venting port (4) is arranged at above pelletizer side; Pelletizer sidewall is provided with nebulizing spray mouth (5); Pelletizer bottom is provided with densely covered high pressure spray pore (6); Pelletizer bottom is provided with slag-drip opening (8).
2. liquid blast furnace slag granulation device as claimed in claim 1, it is characterized in that: nebulizing spray mouth (5) is in tilted layout, vergence direction is oblique top.
3. liquid blast furnace slag granulation device as claimed in claim 1, is characterized in that: nebulizing spray mouth (5) is uniformly distributed in sidewall circumferentially.
4. liquid blast furnace slag granulation device as claimed in claim 1, is characterized in that: diversion trench (1) is made with refractory materials.
5. liquid blast furnace slag granulation device as claimed in claim 1, is characterized in that: the cinder notch (2) that passes through between diversion trench (1) and pelletizer (3) to fall is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310731284.7A CN104745749A (en) | 2013-12-27 | 2013-12-27 | Liquid-form blast furnace slag granulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310731284.7A CN104745749A (en) | 2013-12-27 | 2013-12-27 | Liquid-form blast furnace slag granulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104745749A true CN104745749A (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310731284.7A Pending CN104745749A (en) | 2013-12-27 | 2013-12-27 | Liquid-form blast furnace slag granulating device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105296691A (en) * | 2015-11-25 | 2016-02-03 | 南京圣诺热管有限公司 | High-temperature molten slag spraying granulating device |
| CN108660269A (en) * | 2018-07-17 | 2018-10-16 | 中能立化科技有限公司 | A kind of jet stream granulation spray gun and slag granulating heat-exchanger rig |
| CN113814050A (en) * | 2021-11-22 | 2021-12-21 | 中国恩菲工程技术有限公司 | Smelting slag granulating device |
-
2013
- 2013-12-27 CN CN201310731284.7A patent/CN104745749A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105296691A (en) * | 2015-11-25 | 2016-02-03 | 南京圣诺热管有限公司 | High-temperature molten slag spraying granulating device |
| CN108660269A (en) * | 2018-07-17 | 2018-10-16 | 中能立化科技有限公司 | A kind of jet stream granulation spray gun and slag granulating heat-exchanger rig |
| CN113814050A (en) * | 2021-11-22 | 2021-12-21 | 中国恩菲工程技术有限公司 | Smelting slag granulating device |
| CN113814050B (en) * | 2021-11-22 | 2022-03-01 | 中国恩菲工程技术有限公司 | Smelting slag granulating device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |
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| WD01 | Invention patent application deemed withdrawn after publication |