CN109365090B - Steel slag thermal crushing device - Google Patents
Steel slag thermal crushing device Download PDFInfo
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- CN109365090B CN109365090B CN201811449204.8A CN201811449204A CN109365090B CN 109365090 B CN109365090 B CN 109365090B CN 201811449204 A CN201811449204 A CN 201811449204A CN 109365090 B CN109365090 B CN 109365090B
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- Prior art keywords
- roller
- steel slag
- slag
- tank
- stage
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- 239000002893 slag Substances 0.000 title claims abstract description 135
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 99
- 239000010959 steel Substances 0.000 title claims abstract description 99
- 238000005507 spraying Methods 0.000 claims abstract description 16
- 239000000428 dust Substances 0.000 claims abstract description 13
- 239000002918 waste heat Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000498 cooling water Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 9
- 238000010008 shearing Methods 0.000 claims description 7
- 208000026231 acute otitis externa Diseases 0.000 claims description 3
- 239000000443 aerosol Substances 0.000 claims description 3
- 201000011645 beach ear Diseases 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000000112 cooling gas Substances 0.000 claims description 2
- 239000000110 cooling liquid Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 15
- 239000007788 liquid Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000009628 steelmaking Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C2018/147—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers of the plural stage type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/66—Heat exchange
-
- 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
Abstract
The invention provides a steel slag thermal crushing device, which comprises a shell and a steel slag tank arranged in the shell, wherein a movable door is arranged at the top of the shell opposite to the steel slag tank, and the shell is internally provided with: a hopper groove for receiving steel slag in the steel slag tank, and a slag discharging port at the bottom is communicated with the bottom of the shell; the crushing device is used for crushing the steel slag through a primary roller and a secondary roller with comb teeth on the circumferential surface; a spraying device for spraying cooling water to the steel slag; a steam exhaust pipe for outputting steam to the waste heat utilization device; a slag conveying device for outputting the processed slag; and a driving device for driving the components to work. The invention can crush liquid or semi-liquid steel slag for the first time in a non-cooling state, then spray water for cooling, and then crush the steel slag for the second time thermally. The generated high-temperature steam is directly pumped from the vicinity of the steam generation position for recovery, and the high-temperature steam is not mixed with dust removal air to achieve the effects of cooling and utilizing waste heat.
Description
Technical Field
The invention relates to the field of steelmaking, in particular to a steel slag thermal crushing device for crushing hot steel slag discharged from a steelmaking converter for multiple times and realizing sensible heat recovery.
Background
The steel slag produced after steelmaking contains some minerals and part of incompletely precipitated steel and iron, so that the steel slag needs to be crushed for multiple times to recover the steel and the iron as much as possible, and the final steel slag can be used as raw materials for manufacturing blank walls or paving in the construction industry.
The common hot crushing mode of the steel slag at present mainly comprises the following steps: although the wind blowing method, the slag bed rolling method, the double-roller method and the like can realize the crushing of the steel slag, the steel slag is still in a fluid state when the steel slag is just smelted, the steel slag is only crushed after being cooled, and sensible heat in the cooling process is not effectively utilized, so that the waste is large. In addition, the existing treatment equipment has the problems of high energy consumption and high manufacturing cost.
Disclosure of Invention
The invention aims to provide a steel slag thermal crushing device for crushing hot steel slag discharged from a steelmaking converter for multiple times and realizing sensible heat recovery.
In particular, the invention provides a steel slag thermal crushing device, which comprises a totally-enclosed dust collection shell and a steel slag tank which is arranged in the shell through a tank ear shaft and is used for containing steel slag, wherein a movable door is arranged at the top of the shell opposite to the steel slag tank, and the shell is internally provided with:
the hopper groove is integrally of a funnel structure with an upper opening and a lower part contracted, is arranged below the steel slag tank and is used for receiving steel slag in the steel slag tank, and a bottom slag discharge port is communicated with the bottom of the shell;
the crushing device comprises a first-stage roller which is arranged at the bottom of the hopper groove through a shaft and provided with comb teeth on the circumferential surface, and a second-stage roller which is arranged at the downstream of the first-stage roller through a shaft at intervals, wherein fixed teeth which are respectively provided with comb teeth on the first-stage roller and the second-stage roller in a shearing structure, and roller covers which are outwards protruded to respectively accommodate the first-stage roller and the second-stage roller are arranged on the hopper groove;
the spraying device is used for spraying cooling water to the steel slag in the crushing process;
the steam exhaust pipe is arranged at the roller cover of the primary roller and is used for outputting steam in the hopper groove to the waste heat utilization device;
the slag conveying device is positioned below the shell and opposite to the slag discharge port of the hopper groove, and comprises a slag pot for receiving the processed slag, a rail for guiding the slag pot to a slag pouring position, and the slag pot is supported on the rail through a rail wheel at the bottom;
and the driving device is used for driving the steel slag tank and the crushing device to rotate.
In one embodiment of the invention, a bracket for supporting the steel slag tank and fixing the hopper tank is arranged in the shell, the top of the bracket is of a U-shaped structure inclined towards the direction of the hopper tank, the steel slag tank is arranged between the U-shaped structures, gears with shifting forks are fixed at two ends of a trunnion of the tank, and the gears are driven by the driving device to control the steel slag tank to rotate along the radial direction of the shaft of the tank ear by the shifting forks.
In one embodiment of the invention, the spraying device comprises a primary nozzle and a secondary nozzle disposed in the hopper trough between the primary roller and the secondary roller, and a tertiary nozzle downstream of the secondary roller.
In one embodiment of the present invention, the primary, secondary and tertiary nozzles employ an aerosol nozzle configuration that atomizes water.
In one embodiment of the invention, the hopper tank and the roller cover are of a double-layer hollow structure, and cooling liquid or gas circularly flows in the hopper tank and the roller cover.
In one embodiment of the present invention, the fixed teeth at the primary roller are respectively provided at: the axial opening of the roller cover for accommodating the primary roller is provided with two sides which respectively correspond to each row of comb teeth on the primary roller, and the gap reserved by the primary roller at the hopper groove is the length of the comb teeth on the primary roller at the inner wall of the hopper groove at one side opposite to the primary roller.
In one embodiment of the present invention, the fixed teeth at the secondary roller are respectively provided at: the two sides of the axial opening of the roller cover for accommodating the secondary roller are respectively corresponding to each row of comb teeth on the secondary roller, and the inner wall of the hopper groove on one side opposite to the secondary roller, and the gap reserved by the secondary roller at the hopper groove is the length of the comb teeth.
In one embodiment of the invention, the roller cover is movably mounted.
In one embodiment of the invention, stirring holes communicated with the outside are arranged on the circumference of the hopper groove, and stirring rods for stirring and blocking the steel slag are inserted into the stirring holes.
In one embodiment of the invention, a pit is dug on the ground corresponding to the lower part of the shell, and the slag conveying device is positioned in the pit.
The invention can crush liquid or semi-liquid steel slag for the first time in a non-cooling state, then spray water for cooling, and then crush the steel slag for the second time thermally. The generated high-temperature steam is directly pumped from the vicinity of the steam generation position for recovery, and the high-temperature steam is not mixed with dust removal air to achieve the effects of cooling and utilizing waste heat.
Drawings
Fig. 1 is a schematic structural view of a steel slag thermal crushing device according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1, an embodiment of the present invention provides a slag thermal crushing apparatus, which comprises a fully enclosed dust collecting housing 10, and a slag pot 20, a hopper tank 30, a crushing apparatus 40, a spraying apparatus 50, a steam exhaust pipe 60, a slag conveying apparatus 70, and a driving apparatus 80 installed in the housing 10.
The steel slag pot 20 is installed at the upper part in the shell 10 through a pot trunnion 21, a movable door 11 is arranged at the top of the shell 10 opposite to the steel slag pot 20, the steel slag pot 20 enters and exits the shell 10 through the movable door 11, and then the steel slag pot 20 can radially rotate by taking the pot trunnion 21 as a support under the drive of a driving device 80 so as to pour the steel slag in the lower hopper slot 30.
The hopper tank 30 is integrally of a funnel-shaped structure with an upper opening and a lower part contracted, is arranged below the steel slag tank 20 and is used for receiving steel slag in the steel slag tank 20, and a bottom slag discharge port is communicated with the bottom of the shell 10 through a pipeline.
The crushing device 40 includes a primary roller 41 installed at the bottom of the hopper tank 30 by a shaft connection and having teeth 43 on the circumferential surface thereof, and a secondary roller 42 installed at a downstream of the primary roller 41 by a shaft spaced apart and opposite thereto, fixing teeth 44 installed on the hopper tank 30 to form a shearing structure with the teeth 43 of the primary roller 41 and the secondary roller 42, respectively, and roller covers protruding outwardly to receive the primary roller and the secondary roller, respectively.
The whole hopper groove 30 has a certain width to form a trapezoid with a large upper part and a small lower part, the primary roller 41 and the secondary roller 42 are arranged along the width direction, the comb teeth 43 on the surfaces of the primary roller 41 and the secondary roller 42 can be arranged in rows and intervals along the axial direction of the primary roller and are tangent to the fixed teeth 44 in the process of rotating in the same direction as the steel slag falling direction, so that the descending steel slag is sheared into small sections or small blocks, and the fixed teeth 44 are equivalent to the interval distance between the comb teeth 43. A steel slag descending channel is formed between the primary roller 41 and the secondary roller 42, so that the descending steel slag is subjected to secondary shearing.
The roller cover 45 is an arc cover as a movable cover for installing and maintaining the primary roller 41 and the secondary roller 42, and also functions to seal the hopper slot 30, and can be opened to maintain the internal equipment when necessary.
The spraying device 50 cools the steel slag during the crushing process by liquid or gas, and the specific liquid can be industrial water or sewage containing solid particles.
The steam exhaust pipe 60 is installed at the roller cover 45 of the primary roller 41 and is used for outputting steam generated by cooling in the hopper tank 30 to the waste heat utilization device. The steam exhaust pipe 60 may be installed at other positions where the descending of the steel slag is not affected and the steam can be collected. The specific waste heat utilization device can be a circulating heating pipe for heating water.
The slag conveying device 70 is used for conveying crushed steel slag to a designated position, is positioned at a steel slag outlet of the hopper trough 30 below the shell 10, and generally comprises a slag pot 71 for receiving the processed steel slag, a rail 72 for connecting the crushed steel slag with the steel slag where the steel slag is stacked, a rail wheel 711 capable of walking on the rail 72 is arranged at the bottom of the slag pot 71, and the slag pot 71 is supported on the rail 72 through the rail wheel 711 to walk.
The drive means 80 is used to provide operating power to the overall apparatus, including driving the slag pot 20 and the crushing device 40 in rotation. The specific driving device 80 may be a motor to which a reduction mechanism is connected.
When the device is operated, the movable door 11 at the upper part of the shell 10 is opened, the steel slag tank 20 filled with liquid steel slag is hung into the placing position in the shell 10 through the movable door 11 by a crane, then the steel slag tank 20 is controlled by the driving device 80 to turn over, steel slag in the steel slag tank 20 is poured into the hopper groove 30 below, steel slag entering the hopper groove 30 flows out from the bottom of the hopper groove 30, the liquid steel slag is divided into block semi-solid under the action of the first-stage roller 41 and the fixed teeth 44 in the flowing process, then the water is sprayed by the spraying device 50 for cooling, so that the steel slag is completely solidified, loses adhesion, enters the shearing range of the second-stage roller 42 and the fixed teeth 44, forms finer grain size after further shearing, is convenient for later slag stewing treatment, and finally the refined steel slag falls into the slag tank 71 from the bottom of the shell 10 and is conveyed to the later treatment position through the rail 72.
The whole shell 10 adopts a sealing structure, is beneficial to dust removal effect and reduces dust removal air quantity, meanwhile reduces process energy consumption and dust removal equipment manufacturing cost, and can be provided with a corresponding dust removal exhaust port 12 on the shell 10. The steam formed by the spraying device 50 and the steel slag rises and is discharged by the steam discharge pipe 60, and a corresponding air pump can be arranged at the steam discharge pipe 60 for facilitating the discharge of the steam. In addition, the height of the steam extraction pipe 60 needs to be lower than the height of the suction port 12 to avoid dust from being mixed in the steam as much as possible.
After the current steel slag treatment is completed, the movable door 11 above the shell 10 is opened, the steel slag tank 20 is lifted out by a crane to reload the steel slag, and the process is repeated. The movable door 11 may be opened in a flip-type structure or a flat-pull type structure.
The housing 10, the hopper tank 30 and the roller cover 45 may be of a double-layered hollow structure, and then internally circulate a liquid (water) or gas for cooling.
The embodiment can carry out the first crushing of the liquid or semi-liquid steel slag in a non-cooling state, then spray water cooling and then carry out the second thermal crushing. The generated high-temperature steam is directly pumped from the vicinity of the steam generation position for recovery, and the high-temperature steam is not mixed with dust removal air to achieve the effects of cooling and utilizing waste heat.
For the convenience of installing the steel slag pot 20, the bracket 13 for supporting the steel slag pot 20 and fixing the hopper slot 30 can be installed in the shell 10, the top of the bracket 13 is of a U-shaped structure inclined towards the direction of the hopper slot 30, the steel slag pot 20 is installed between the U-shaped structures and is just above the hopper slot 30, the steel slag pot 20 is supported at the top ends of the two U-shaped support rods of the bracket through the pot trunnion 21, the two ends of the pot trunnion 21 are fixedly provided with gears 22 with shifting forks, and the driving device 80 can control the gears 22 to drive the steel slag pot 20 to radially rotate along the pot trunnion 21 through the shifting forks.
Meanwhile, the side edge of the hopper slot 30 can be fixed with the vertical body of the bracket 13 through bolts, so that the stability of the hopper slot 30 is improved. The hopper slot 30 can also be pushed against the support 13 by corresponding hydraulic means. The adoption of the bracket 13 structure can improve the stability of the whole device.
The specific spraying device 50 can be a multi-stage spraying structure or a multi-stage spraying structure, the cooling position can also be set according to the crushing process of the steel slag, such as a first-stage nozzle 51 and a second-stage nozzle 52 which are arranged in the hopper tank 30 and positioned between the first-stage roller 41 and the second-stage roller 42, and a third-stage nozzle 53 positioned at the downstream of the second-stage roller 42, and the multi-stage spraying can cool different surfaces of the steel slag from different angles, so as to improve the cooling effect.
The primary nozzles 51, the secondary nozzles 52, and the tertiary nozzles 53 may employ an aerosol nozzle structure capable of atomizing water.
In one embodiment of the present invention, the fixing teeth 44 may be provided in plural places, and the fixing teeth 44 at the primary roller 41 are respectively provided at: the roller cover 45 accommodating the primary roller 41 is axially opened at both sides and respectively corresponding to each row of comb teeth 43 on the primary roller 41, and at the inner wall of the hopper slot 30 at the side opposite to the primary roller 41, the gap left by the primary roller 41 at the hopper slot 30 is the length of the upper comb teeth 43.
The fixed teeth 44 at the secondary roller 42 are respectively provided at: the roller cover 45 accommodating the secondary roller 42 is axially open on both sides and corresponds to each row of comb teeth 43 on the secondary roller 42, and on the inner wall of the hopper slot 30 on the side opposite to the secondary roller 42, the gap left by the secondary roller 42 at the hopper slot 30 is the length of the upper comb teeth 44 thereof.
The structure can enable the primary roller 41 and the secondary roller 42 to respectively form a shearing structure with the fixed teeth 44 at three positions on respective rotating tracks, thereby improving the crushing effect on steel slag.
Stirring holes (not shown) communicating with the outside are provided on the circumference of the hopper tank 30, and stirring bars for stirring the blocked steel slag are inserted into the stirring holes. When the temperature of the steel slag is too low to form arch materials, a hydraulic stirring rod can be inserted in a vibration mode to stir the steel slag to avoid mutual adhesion, so that the steel slag descends
To reduce the overall height of the apparatus, pit 14 may be dug in the corresponding ground below housing 10, and slag conveying device 70 may be placed within pit 14, thereby reducing the overall height of the apparatus and plant. In addition, a dust falling interface can be arranged at the top opening of the pit 14, so that dust emission is avoided.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims (4)
1. The utility model provides a slag hot breaker, includes totally closed dust collection and uses the casing to with install the slag jar in order to splendid attire slag in the casing through the cage shoe axle, be provided with the dodge gate at the relative top of casing and slag jar, its characterized in that still installs in the casing:
the hopper groove is integrally of a funnel structure with an upper opening and a lower part contracted, is arranged below the steel slag tank and is used for receiving steel slag in the steel slag tank, and a bottom slag discharge port is communicated with the bottom of the shell;
the crushing device comprises a first-stage roller which is arranged at the bottom of the hopper groove through a shaft and provided with comb teeth on the circumferential surface, and a second-stage roller which is arranged at the downstream of the first-stage roller through a shaft at intervals, wherein fixed teeth which are respectively provided with comb teeth on the first-stage roller and the second-stage roller in a shearing structure, and roller covers which are outwards protruded to respectively accommodate the first-stage roller and the second-stage roller are arranged on the hopper groove;
the spraying device is used for spraying cooling water to the steel slag in the crushing process;
the steam exhaust pipe is arranged at the roller cover of the primary roller and is used for outputting steam in the hopper groove to the waste heat utilization device;
the slag conveying device is positioned below the shell and opposite to the slag discharge port of the hopper groove, and comprises a slag pot for receiving the processed slag, a rail for guiding the slag pot to a slag pouring position, and the slag pot is supported on the rail through a rail wheel at the bottom;
the driving device is used for driving the steel slag tank and the crushing device to rotate;
a bracket for supporting the steel slag tank and fixing the hopper tank is arranged in the shell, the top of the bracket is of a U-shaped structure inclined towards the direction of the hopper tank, the steel slag tank is arranged between the U-shaped structures, gears with shifting forks are fixed at two ends of a tank trunnion, and the gears are driven by the driving device to control the steel slag tank to rotate along the radial direction of the tank ear shaft by the shifting forks;
the spraying device comprises a first-stage nozzle and a second-stage nozzle which are arranged in the hopper groove and positioned between the first-stage roller and the second-stage roller, and a third-stage nozzle positioned at the downstream of the second-stage roller;
the primary nozzle, the secondary nozzle and the tertiary nozzle adopt an aerosol nozzle structure for atomizing water;
the hopper groove and the roller cover are of double-layer hollow structures, and cooling liquid or gas circularly flows in the hopper groove and the roller cover;
the fixed teeth at the primary roller are respectively arranged at the following positions: the gap left by the primary roller at the hopper groove is the length of the comb teeth on the primary roller at the two sides of the axial opening of the roller cover for accommodating the primary roller and at the positions corresponding to each row of comb teeth on the primary roller and at the inner wall of the hopper groove at the side opposite to the primary roller;
the fixed teeth at the secondary roller are respectively arranged at the following positions: the two sides of the axial opening of the roller cover for accommodating the secondary roller are respectively corresponding to each row of comb teeth on the secondary roller, and the inner wall of the hopper groove on one side opposite to the secondary roller, and the gap reserved by the secondary roller at the hopper groove is the length of the comb teeth.
2. The steel slag thermal crushing device according to claim 1, wherein,
the roller cover is movably mounted.
3. The steel slag thermal crushing device according to claim 1, wherein,
stirring holes communicated with the outside are formed in the circumference of the hopper groove, and stirring rods for stirring and blocking steel slag are inserted into the stirring holes.
4. The steel slag thermal crushing device according to claim 1, wherein a pit is dug in the ground corresponding to the lower part of the shell, and the slag conveying device is positioned in the pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811449204.8A CN109365090B (en) | 2018-11-30 | 2018-11-30 | Steel slag thermal crushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811449204.8A CN109365090B (en) | 2018-11-30 | 2018-11-30 | Steel slag thermal crushing device |
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| Publication Number | Publication Date |
|---|---|
| CN109365090A CN109365090A (en) | 2019-02-22 |
| CN109365090B true CN109365090B (en) | 2023-12-29 |
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| CN201811449204.8A Active CN109365090B (en) | 2018-11-30 | 2018-11-30 | Steel slag thermal crushing device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735010A (en) * | 2019-09-10 | 2020-01-31 | 武汉市亚克流体设备有限公司 | Slag powerful thermal crushing device |
| CN110669881B (en) * | 2019-10-02 | 2021-05-11 | 华北理工大学 | Energy-saving and environment-friendly blast furnace slag treatment equipment |
| CN113293244A (en) * | 2021-05-21 | 2021-08-24 | 南京华电节能环保设备有限公司 | High-temperature molten slag crushing device and high-temperature molten slag crushing pool with waste heat recovery function |
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