CN210458237U - Blast furnace slag chilling gasification device - Google Patents
Blast furnace slag chilling gasification device Download PDFInfo
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- CN210458237U CN210458237U CN201920411865.5U CN201920411865U CN210458237U CN 210458237 U CN210458237 U CN 210458237U CN 201920411865 U CN201920411865 U CN 201920411865U CN 210458237 U CN210458237 U CN 210458237U
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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
- 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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- 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 utility model discloses a blast furnace slag chilling gasification device, which comprises a high-speed nozzle, a shell, a plurality of heat exchange plates, a cooling water pipe and a steam outlet; a rectangular opening is formed in the center of the top of the shell, a plurality of high-speed nozzles are arranged at the upper end of the shell, and outlets of the high-speed nozzles incline upwards towards the center of the shell; the cooling water pipes are uniformly arranged on the inner wall of the shell, and the plurality of heat exchange plates are uniformly arranged on the inner wall of the shell in a staggered manner from top to bottom; one end of the heat exchange plate is connected with one side of the inner wall of the shell, and the other end of the heat exchange plate is arranged obliquely downwards; one end of the steam outlet is communicated with the interior of the shell, and the other end of the steam outlet is connected with the steam pipeline; the utility model arranges the rectangular opening and the plurality of high-speed nozzles on the top of the shell, the liquid blast furnace slag forms the belt-shaped blast furnace slag after passing through the rectangular opening on the top of the shell, and the high-speed water flow sprayed by the high-speed nozzles breaks the belt-shaped liquid blast furnace slag, thereby realizing the waste heat recovery of the blast furnace slag; meanwhile, the blast furnace slag forms glass phase blast furnace slag which can be used for cement production and reutilization.
Description
Technical Field
The utility model relates to a waste heat recovery technical field, in particular to blast furnace slag chilling gasification equipment.
Background
Since a century ago, a plurality of methods for utilizing the residual heat of blast furnace slag are proposed at home and abroad, such as a cooling rotary drum method, a slag sheet solidification residual heat recovery process, a continuous casting and rolling method, a slag plate solidification residual heat recovery process, a mechanical stirring method, a slag granulation residual heat recovery process, a rotary drum method, a slag granulation residual heat recovery process and the like, the common characteristics of the above treatment processes are that the specific high-grade energy of the high-temperature slag is low-grade energy by using a large amount of medium heat exchange, the substantial heat recovery rate is low, the larger the fall between the high temperature and the low temperature is, the larger the heat loss is, the lower the overall heat recovery efficiency is, the fundamental reason is that the industrial application is not realized, the slag wind breaking process developed in Japan in the 20 th century 80 th generation until the highest achievement of the current wind breaking process can be called as well as the processing capacity of the slag reaches 100t/h, the large-scale production test result shows that the heat recovery efficiency and the quality of the finished slag reach the industrial requirement, but the slag rotational speed of the rotary drum furnace slag granulation process reaches 3580 th generation, the service life of the rotary drum furnace and the rotary drum, the rotary drum furnace slag granulation process is difficult to meet the requirement of the industrial production test of the industrial production, the industrial production of the rotary drum, the rotary drum and the rotary drum, the rotary drum can not reach the rotary drum, the rotary drum can not reach the requirement of the rotary drum, the rotary drum can not reach the rotary drum.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model relates to a blast furnace slag chilling gasification equipment smashes blast furnace slag through adopting high-speed rivers in chilling gasification equipment, realizes the waste heat recovery to blast furnace slag, and this device area is little, and extensive applicability is general.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a blast furnace slag chilling gasification device comprises a high-speed nozzle, a shell, a plurality of heat exchange plates, a cooling water pipe and a steam outlet; a rectangular opening is formed in the center of the top of the shell, a plurality of high-speed nozzles are arranged at the upper end of the shell, high-speed water flows into the shell through the high-speed nozzles, and outlets of the high-speed nozzles incline upwards towards the center of the shell; the cooling water pipes are uniformly arranged on the inner wall of the shell, and the plurality of heat exchange plates are uniformly arranged on the inner wall of the shell in a staggered manner from top to bottom; one end of the heat exchange plate is connected with one side of the inner wall of the shell, the other end of the heat exchange plate is arranged obliquely downwards, and a feed opening is arranged between the other end of the heat exchange plate and the other side of the inner wall of the shell; the steam outlet is arranged below the high-speed nozzle and is arranged above the heat exchange plate; one end of the steam outlet is communicated with the inside of the shell, and the other end of the steam outlet is connected with the steam pipeline through a steam outlet connecting pipe.
Furthermore, the included angle between the heat exchange plate and the horizontal plane is 3-68 degrees; the free end of the upper stage heat exchange plate is arranged above the connecting end of the lower stage heat exchange plate, and the distance between the free end of the upper stage heat exchange plate and the connecting end of the lower stage heat exchange plate is 150mm-1800 mm.
Further, the device also comprises a purging nozzle; the purging nozzle is arranged at the joint of the heat exchange plate and the shell, the outlet of the purging nozzle is parallel to the heat exchange plate, the purging nozzle is connected with the air compressor, and the purging nozzle is further provided with an automatic control valve.
Furthermore, the bottom of the shell is also provided with a cooling water tank, the top of the cooling water tank is communicated with the bottom of the shell, the bottom of the cooling water tank is provided with a solid-phase outlet and a liquid-phase outlet, the solid-phase outlet is used for discharging the solid blast furnace slag shell, and the liquid-phase outlet is used for discharging cooling water after heat exchange.
Furthermore, the inner surface of the shell is provided with a nano high-temperature-resistant corrosion-resistant anti-sticking coating.
Furthermore, a nano high-temperature-resistant corrosion-resistant anti-sticking coating is arranged on the outer surface of the heat exchange plate.
Further, the water outlet of the cooling water pipe is arranged at the upper end of the shell and is connected with the water outlet pipe; the water inlet of the cooling water pipe is arranged at the lower end of the shell and is connected with the water supply equipment through a water inlet pipe.
Furthermore, the high-speed nozzles are arranged in three layers from top to bottom, six high-speed nozzles are uniformly arranged on each layer along the circumference of the shell, and the angle between each high-speed nozzle and the central axis of the shell is 60-120 degrees.
Further, still include the awl fill, the awl is fought and is set up at the top of casing, and the bottom and the casing top rectangle opening intercommunication of awl fill.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a blast furnace slag chilling gasification device, through set up rectangle opening and a plurality of high-speed nozzle at the casing top, the liquid blast furnace slag forms banded blast furnace slag after passing through the rectangle opening at casing top, and the high-speed rivers that the high-speed nozzle spouts smash banded liquid blast furnace slag, realize the waste heat recovery to blast furnace slag; meanwhile, the blast furnace slag crushed by the high-speed water flow forms glass phase blast furnace slag which can be used for cement production and reutilization; a plurality of heat exchange plates are uniformly arranged in the shell from top to bottom, and the blast furnace slag crushed by the high-speed airflow exchanges heat with the heat exchange plates again, so that the waste heat recovery efficiency of the device is improved.
Furthermore, the nanometer old high-temperature corrosion-resistant anti-sticking coating is arranged on the inner wall of the shell and the outer surface of the heat exchange plate, so that the liquid blast furnace slag is prevented from being adhered to the inner surface of the shell and the outer surface of the heat exchange plate.
Furthermore, the blowing nozzle is arranged at the connecting end of the heat exchange plate and the shell, so that the blast furnace slag staying on the heat exchange plate can be completely removed.
Furthermore, the upper end of the shell is arranged at the water outlet of the cooling water pipe, the water inlet of the cooling water pipe is arranged at the lower end of the shell, and cooling water in the cooling water pipe flows from low to high, so that the cooling effect of the cooling water pipe is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a blast furnace slag quench gasification apparatus according to the present invention;
the device comprises a conical hopper 1, a high-speed nozzle 2, a shell 3, a heat exchange plate 4, a blowing nozzle 5, a cooling water pipe 6, a steam outlet 7, a water outlet pipe 8 and a water inlet pipe 9.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to the attached drawing 1, the utility model provides a blast furnace slag chilling gasification device, which comprises a cone hopper 1, a high-speed nozzle 2, a shell 3, a heat exchange plate 4, a blowing nozzle 5, a cooling water pipe 6, a steam outlet 7 and a cooling water pool;
the cone hopper 1 is arranged at the top of the shell 3, a rectangular opening is formed in the center of the top of the shell 3, and the bottom of the cone hopper 1 is communicated with the rectangular opening in the top of the shell 3; the upper end of the shell 3 is provided with a plurality of high-speed nozzles 2, and high-speed water flow enters the shell 3 through the high-speed nozzles 2; the high-speed nozzles 2 are arranged in three layers from top to bottom, and each layer of high-speed nozzles comprises six high-speed nozzles uniformly arranged along the circumference of the shell 3; each high-speed nozzle 2 is inclined upward toward the central axis of the casing 3 at an angle of 60 to 120 ° with respect to the central axis of the casing 3.
A plurality of cooling water pipes 6 are uniformly arranged on the inner wall of the shell 3, and the cooling water pipes 6 form a cold water wall on the inner wall of the shell 3 for heat exchange and shell protection; the water outlet of the cooling water pipe 6 is arranged at the upper end of the shell 3, and the water outlet 8 of the cooling water pipe 6 is connected with the water outlet pipe; the water inlet 9 of the cooling water pipe is arranged at the lower end of the shell 3, the water inlet 9 of the cooling water pipe 6 is connected with a water supply device through a water inlet pipe, and cooling water in the cooling water pipe 6 flows from low to high.
A plurality of heat exchange plates 4 are uniformly arranged in the shell 3 in a staggered manner from top to bottom, and the plurality of heat exchange plates 4 are all arranged at the lower part of the high-speed nozzle 2; one end of the heat exchange plate 4 is connected with one side of the inner wall of the shell 3, the other end of the heat exchange plate 4 is arranged obliquely downwards, and a feed opening is arranged between the other end of the heat exchange plate 4 and the other side of the inner wall of the shell 3; the included angle between the heat exchange plate 4 and the horizontal plane is 3-68 degrees; the free end of the upper stage heat exchange plate 4 is arranged above the connecting end of the lower stage heat exchange plate 4, and the distance between the free end of the upper stage heat exchange plate 4 and the connecting end of the lower stage heat exchange plate 4 is 150mm-1800 mm; the purging nozzle 5 is arranged at the joint of the heat exchange plate 4 and the shell 3, and the outlet of the purging nozzle 5 is arranged in parallel with the heat exchange plate 4 and is used for purging blast furnace slag staying on the heat exchange plate 4; the blowing nozzle 5 is connected with the air compressor, and the blowing nozzle 4 is also provided with an automatic control valve for opening the blowing nozzle at regular time.
The shell 3 is also provided with a steam outlet 7, and the steam outlet 7 is arranged below the high-speed nozzle 2 and above the heat exchange plate 4; one end of the steam outlet 7 is communicated with the inside of the shell 3, and the other end of the steam outlet is connected with a steam pipeline through a steam outlet connecting pipe; the bottom of the shell 3 is provided with a cooling water pool, the bottom of the cooling water pool is provided with a solid phase outlet and a liquid phase outlet, the solid phase outlet is used for discharging the solid blast furnace slag shell, and the liquid phase outlet is used for discharging cooling water after heat exchange.
The utility model discloses a theory of operation:
the utility model relates to a blast furnace chilling gasification device, which is characterized in that liquid blast furnace slag is wrapped into a cone hopper 1 from the blast furnace slag, the liquid blast furnace slag flows into a shell 3 from the cone hopper through a rectangular opening at the top of the shell 3, and the liquid blast furnace slag slowly flows out through the rectangular opening at the top of the shell 3 and forms a strip-shaped falling; meanwhile, high-speed water flow is sprayed out by the high-speed nozzle 2 to cut and crush the falling belt-shaped liquid blast furnace slag, the liquid blast furnace slag is crushed and cooled into solid blast furnace slag particles, and the generated high-temperature water vapor is pumped out from a vapor outlet through a connecting pipe and enters an evaporator for utilization; the temperature of the crushed solid blast furnace slag particles is still high, the solid blast furnace slag particles fall on the heat exchange plate 4 which is obliquely arranged when continuing to fall, and the solid blast furnace slag particles finally fall in a cooling water tank at the bottom of the shell 3 after further heat exchange with the heat exchange plate 4; meanwhile, the top of the heat exchange plate 4 is provided with a blowing nozzle 5, and the blowing nozzle 5 can enable solid blast furnace slag particles staying on the heat exchange plate 4 to enter a bottom cooling water pool; the cooling water in the cooling water pool forms high-temperature water after exchanging heat with the blast furnace slag particles, the high-temperature water is introduced into the flash tank through a pipeline for utilization, and finally the solid blast furnace slag particles are discharged from the cooling water pool.
The utility model relates to a blast furnace chilling gasification device, a shell 3 is made of 316L stainless steel, and a nano high temperature resistant, corrosion resistant and anti-sticking coating is arranged on the inner surface of the shell 3 and is used for preventing liquid blast furnace slag from adhering to the inner surface of the shell; the surface of the heat exchange plate is provided with a nano high-temperature-resistant corrosion-resistant anti-sticking coating which is used for preventing the liquid blast furnace from being adhered to the outer surface of the heat exchange plate; a rectangular opening is arranged at the center of the top of the shell, and the high-speed nozzle is arranged at the upper part of the shell 3; the water inlet pipe 9 and the water outlet pipe 8 of the cooling water pipe are both made of 316L stainless steel, and the steam outlet connecting pipe 7 is made of 316L stainless steel.
The utility model discloses with high-speed jet milling blast furnace slag in chilling gasification equipment, the glass phase content of the blast furnace slag of gained can satisfy cement manufacture's requirement more than 90%. The waste heat recovery rate of the blast furnace slag treated by the waste heat utilization device for crushing the blast furnace slag by using high-speed airflow in the chilling gasification device reaches more than 80 percent.
Claims (9)
1. A blast furnace slag chilling gasification device is characterized by comprising a high-speed nozzle (2), a shell (3), a plurality of heat exchange plates (4), a cooling water pipe (6) and a steam outlet (7); a rectangular opening is formed in the center of the top of the shell (3), a plurality of high-speed nozzles (2) are arranged at the upper end of the shell (3), high-speed water flow enters the shell (3) through the high-speed nozzles (2), and outlets of the high-speed nozzles (2) incline upwards towards the center of the shell (3); the cooling water pipes (6) are uniformly arranged on the inner wall of the shell (3), and the plurality of heat exchange plates (4) are uniformly arranged on the inner wall of the shell (3) in a staggered manner from top to bottom; one end of the heat exchange plate (4) is connected with one side of the inner wall of the shell (3), the other end of the heat exchange plate is arranged obliquely downwards, and a feed opening is arranged between the other end of the heat exchange plate and the other side of the inner wall of the shell (3); the steam outlet (7) is arranged below the high-speed nozzle (2) and is arranged above the heat exchange plate (4); one end of the steam outlet (7) is communicated with the inside of the shell (3), and the other end of the steam outlet is connected with the steam pipeline through a steam outlet connecting pipe.
2. The blast furnace slag quench gasification apparatus according to claim 1, wherein the angle between the heat exchange plate (4) and the horizontal plane is 3 ° -68 °; the free end of the upper stage heat exchange plate (4) is arranged above the connecting end of the lower stage heat exchange plate (4), and the distance between the free end of the upper stage heat exchange plate (4) and the connecting end of the lower stage heat exchange plate (4) is 150mm-1800 mm.
3. A blast furnace slag quench gasification unit according to claim 2, characterized by further comprising a purge nozzle (5); the purging nozzle (5) is arranged at the joint of the heat exchange plate (4) and the shell (3), the outlet of the purging nozzle (5) is parallel to the heat exchange plate (4), the purging nozzle (5) is connected with the air compressor, and the purging nozzle (5) is further provided with an automatic control valve.
4. The blast furnace slag chilling gasification device according to claim 1, wherein a cooling water tank is further arranged at the bottom of the housing (3), the top of the cooling water tank is communicated with the bottom of the housing (3), a solid phase outlet and a liquid phase outlet are arranged at the bottom of the cooling water tank, the solid phase outlet is used for discharging the solid blast furnace slag housing, and the liquid phase outlet is used for discharging cooling water after heat exchange.
5. The blast furnace slag quench gasification apparatus according to claim 1, wherein the inner surface of the shell (3) is provided with a nano high temperature resistant corrosion resistant anti-stick coating.
6. The blast furnace slag quench gasification device according to claim 1, characterized in that the outer surface of the heat exchange plate (4) is provided with a nano high temperature resistant corrosion resistant anti-sticking coating.
7. The blast furnace slag quenching gasification device according to claim 1, wherein the water outlet of the cooling water pipe (6) is arranged at the upper end of the shell (3), and the water outlet (8) of the cooling water pipe (6) is connected with the water outlet pipe; the water inlet (9) of the cooling water pipe (6) is arranged at the lower end of the shell (3), and the water inlet (9) of the cooling water pipe (6) is connected with water supply equipment through a water inlet pipe.
8. A blast furnace slag quench gasification apparatus according to claim 1, characterized in that the high speed nozzles (2) are arranged in three tiers from top to bottom, each tier having six high speed nozzles arranged uniformly along the circumference of the shell, each high speed nozzle having an angle of 60 ° to 120 ° with the central axis of the shell (3).
9. The blast furnace slag quenching gasification device according to claim 1, further comprising a cone hopper (1), wherein the cone hopper (1) is arranged at the top of the shell (3), and the bottom of the cone hopper (1) is communicated with the rectangular opening at the top of the shell (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920411865.5U CN210458237U (en) | 2019-03-28 | 2019-03-28 | Blast furnace slag chilling gasification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920411865.5U CN210458237U (en) | 2019-03-28 | 2019-03-28 | Blast furnace slag chilling gasification device |
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| Publication Number | Publication Date |
|---|---|
| CN210458237U true CN210458237U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920411865.5U Active CN210458237U (en) | 2019-03-28 | 2019-03-28 | Blast furnace slag chilling gasification device |
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| CN (1) | CN210458237U (en) |
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2019
- 2019-03-28 CN CN201920411865.5U patent/CN210458237U/en active Active
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Address after: Room 605, 6 / F, block B, Zhonggang international, one side of Wenjing Road, economic development zone, Xi'an City, Shaanxi Province, 710000 Patentee after: Shaanxi Yuteng energy and Environmental Protection Technology Co.,Ltd. Address before: Room 605, 6 / F, block B, Zhonggang international, one side of Wenjing Road, economic development zone, Xi'an City, Shaanxi Province, 710000 Patentee before: SHAANXI YUTENG INDUSTRY Co.,Ltd. |
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Address after: 710018 room 604, floor 6, Zhonggang International Building B, Wenjing Road, Xi'an Economic and Technological Development Zone, Shaanxi Province Patentee after: Shaanxi Yuteng energy and Environmental Protection Technology Co.,Ltd. Address before: Room 605, 6 / F, block B, Zhonggang international, one side of Wenjing Road, economic development zone, Xi'an City, Shaanxi Province, 710000 Patentee before: Shaanxi Yuteng energy and Environmental Protection Technology Co.,Ltd. |