Full-automatic high-pressure mixed gas steel slag treatment, recovery and sorting production line

Abstract

The utility model discloses a full-automatic high-pressure mixed gas steel slag processing, recycling and sorting production line which comprises an electric furnace center, a track and a slag tank, a control platform is arranged at one end of the track, a diversion trench is formed in the control platform, a consignment trolley is arranged on the track and used for consignment of a slag pot, a granulation mechanism capable of conducting angle, height and position translation is arranged on one side of the control platform, the granulation mechanism is arranged below the diversion trench, conveying equipment is arranged on one side of the granulation mechanism, and a steel slag air quenching mechanism is arranged above the conveying equipment. The lifting device is arranged on one side of the conveying device, and the sorting device is arranged on one side of the lifting device. According to the granulating mechanism, the height and angle of high-speed air jetting can be adjusted to achieve the optimal steel slag air-quenching granulating effect, meanwhile, cooling is conducted again through the spraying mechanism on the cooling and dust removing cover, liquid steel slag is rapidly granulated and cooled, and the consistency of the steel slag granulating particle size is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel slag recovery and treatment, and particularly relates to a full-automatic high-pressure mixed gas steel slag treatment, recovery and sorting production line. Background Art

[0002] Steel slag is a by-product of steelmaking, with silicate and ferrite as the main components, accounting for about 6% to 12% of steel production. At present, the main steel slag treatment processes include hot pouring, pan pouring, hot stewing, water quenching, drum, wind quenching and granulation wheel. From an investment perspective, the wind quenching method has a higher utilization rate. It means that the liquid slag is crushed by shearing and other actions under the strong impact and cooling effect of the high-pressure airflow, and the slag is heat-exchanged with the high-pressure gas at the same time, ultimately achieving the purpose of slag granulation and waste heat recovery. The key lies in whether the nozzle can provide continuous high-pressure airflow and whether it has a reasonable gas flow field distribution law.

[0003] After searching, the prior art publication number is CN 110747302 A, which discloses a steel slag air quenching device and a steel slag granulation method. The steel slag air quenching device comprises a device body with a forced cooling chamber, a liquid slag chute and a main air duct are arranged at the front end of the device body, an air jet of the main air duct is located at the lower side of the chute end of the liquid slag chute and faces the forced cooling chamber, a cooling inlet is arranged in the forced cooling chamber, and an exhaust gas outlet duct is arranged in the rear end of the device body; at least two booster air nozzles with nozzles facing the forced cooling chamber are arranged at the upper side of the device body, and a granulated material collector is arranged at the lower side of the device body;

[0004] Its more obvious disadvantage is that there are two booster nozzles, and the blowing directions of the main peak pipeline and the booster nozzle are more forked, which affects the flight trajectory of the liquid slag, causing it to enter the forced cooling chamber in advance before being cooled to the granulation level to form a larger cooling block, which is not conducive to the granulation of the slag;

[0005] After searching, the liquid steel slag air quenching granulation device with the prior art announcement number CN 219972343 U also uses the air quenching method to granulate the steel slag, but the discharge outlet of its air quenching pipe is fixed and the angle and height cannot be effectively adjusted, which will affect the strength and distance of the ejected air, and further affect the granulation quality of the steel slag. Summary of the invention

[0006] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a fully automatic high-pressure mixed gas steel slag processing, recycling and sorting production line. The granulation mechanism can adjust the height and angle of the high-speed jet air to achieve the best wind quenching effect, and at the same time cool down again through the spray mechanism on the cooling dust removal hood, so that the liquid steel slag is quickly granulated and cooled, and the consistency of the steel slag granulation particle size is improved.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A fully automatic high-pressure mixed gas slag processing, recycling and sorting production line comprises an electric furnace center, a track and a slag pot; a control platform is provided at one end of the track, a guide trough is provided on the control platform, a consignment trolley is provided on the track and used to consign the slag pot, a granulation mechanism capable of angle, height and position translation is provided on one side of the control platform, the granulation mechanism is provided below the guide trough, a conveying device is provided on one side of the granulation mechanism, a slag wind quenching mechanism is provided above the conveying device, a lifting device is provided on one side of the conveying device, and a sorting device is provided on one side of the lifting device; the electric furnace center dumps the remaining slag into the slag pot, the slag pot is consigned by the consignment trolley, and then consigned to the control platform along the track, the sorting device, the lifting device, the conveying device and the granulation mechanism are sequentially opened through the control platform, and then the slag pot is controlled to dump the slag into the guide trough, and then the slag flowing out of the guide trough is granulated by the granulation mechanism, the particles formed after granulation are transported to the lifting device through the conveying device station, and the lifting device is transported to the sorting device for sorting treatment.

[0009] The granulation mechanism comprises a box body, a first support plate is arranged in the box body, a second support plate and a translation mechanism are arranged on the first support plate, the second support plate is slidably connected to the first support plate, the translation mechanism is connected to the second support plate, and the translation mechanism controls the second support plate to slide on the first support plate; a fixing frame, a spray box and an angle adjustment mechanism are arranged on the second support plate, the spray box is arranged on the fixing frame, the angle adjustment mechanism is connected to the spray box and adjusts the spray angle of the spray box; a height adjustment mechanism is arranged under the first support plate, and the height adjustment mechanism is used to control the height of the first support plate; the spray angle and position of the spray box can be controlled by cooperating with the height adjustment mechanism, the angle adjustment mechanism and the translation mechanism to achieve the best spraying effect; an air compressor is arranged on one side of the granulation mechanism, and an air pipe is arranged on the air compressor and connected to the spray box.

[0010] The track is provided with a pair and is symmetrically arranged with the center of the electric furnace as the axis. A turntable is provided at the connection of the tracks, and the turntable is used to control the direction of the consignment trolley.

[0011] The slag air quenching mechanism comprises a cooling dust collecting hood, on which a spraying mechanism is provided for spraying and cooling, and at the same time, a dust removal device is provided on the cooling dust collecting hood for purifying and removing dust from water vapor.

[0012] The sorting device includes a storage bin and a conveying device, and the conveying device and the storage bin are fixed by a support frame; a pair of storage bins are provided and are respectively arranged at both ends of the conveying device, and the lifting device lifts the particles to the conveying device, and the particles are conveyed to the storage bin by forward and reverse conveying of the conveying device.

[0013] Preferably, a spray cooling system is provided on one side of the box to provide emergency cooling capability.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1) This technical solution includes a pair of tracks and a turntable, through which the slag pot can be controlled to enter different processing lines, thereby improving the overall processing efficiency. Secondly, a granulation mechanism is provided in the present invention. For the high-speed airflow ejected from the spray box, the spray box can be adjusted at different angles and positions through the cooperation of a height adjustment mechanism, an angle adjustment mechanism, and a translation mechanism, thereby improving its spraying effect, so that the high-speed ejected airflow can drive the liquid slag to cool rapidly under an effectively controlled ejection distance and height, thereby controlling the cooling force to be uniform, avoiding premature falling so that the liquid slag forms a large cooling block when the cooling time is insufficient, thereby affecting the overall granulation effect;

[0016] 2) The use of the cooling dust hood can not only cool the particles again through the spray mechanism to avoid damage to the subsequent conveying equipment and lifting equipment under continuous use due to high temperature, but also the dust removal equipment installed therein can effectively purify the exhaust gas generated by granulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 This is a schematic diagram of the structure of a fully automatic high-pressure mixed gas steel slag processing, recycling and sorting production line. Figure 1 ;

[0018] Attached Figure 2 This is a schematic diagram of the structure of a fully automatic high-pressure mixed gas steel slag processing, recycling and sorting production line. Figure 2 ;

[0019] Attached Figure 3 This is a schematic diagram of the structure of the granulation mechanism. Figure 1 ;

[0020] Attached Figure 4 This is a schematic diagram of the structure of the granulation mechanism. Figure 2

[0021] Attached Figure 5 This is a schematic diagram of the structure of the granulation mechanism. Figure 3

[0022] In the figure: 1. Electric furnace center; 2. Track; 21. Turntable; 3. Consignment trolley; 301. Slag pot; 4. Granulation mechanism; 401. Air compressor; 402. Air pipe; 5. Control platform; 51. Diversion trough; 6. Slag wind quenching mechanism; 61. Cooling dust collecting hood; 62. Conveying equipment; 7. Lifting equipment; 8. Sorting equipment; 81. Storage silo; 82. Conveying equipment;

[0023] 41. Box body; 42. Spray box; 421. Fixed frame; 422. Gear; 43. Angle adjustment mechanism; 44. First support plate; 441. Second support plate; 45. Lead screw; 46. Height adjustment mechanism; 47. Spray cooling system; 48. Translation mechanism. DETAILED DESCRIPTION

[0024] To facilitate the understanding of those skilled in the art, Figure 1-5 , the technical solution of the utility model is further specifically described.

[0025] A fully automatic high-pressure mixed gas steel slag processing, recycling and sorting production line, comprising an electric furnace center 1, a track 2, and a slag pot 301; a control platform 5 is provided at one end of the track 2, a guide groove 51 is provided on the control platform 5, a consignment trolley 3 is provided on the track 2 and is used to consign the slag pot 301, a granulation mechanism 4 capable of angle, height and position translation is provided on one side of the control platform 5, the granulation mechanism 4 is provided below the guide groove 51, a conveying device 62 is provided on one side of the granulation mechanism 4, a steel slag wind quenching mechanism 6 is provided above the conveying device 62, a lifting device 7 is provided on one side of the conveying device 62, and a lifting device 7 is provided on one side of the conveying device 62. A sorting device 8 is provided on one side of the equipment 7; the electric furnace center 1 dumps the remaining slag into the slag pot 301, the slag pot 301 is consigned by the consignment trolley 3, and then consigned to the control platform 5 along the track 2, and the sorting device 8, the lifting device 7, the conveying device 62, and the granulation mechanism 4 are sequentially turned on through the control platform 5, and then the slag pot 301 is controlled to dump the slag into the guide trough 51, and then the granulation mechanism 4 is used to granulate the slag flowing out of the guide trough 51, and the particles formed after granulation are transported to the lifting device 7 via the conveying device 62, and the lifting device 7 is transferred to the sorting device 8 for sorting processing.

[0026] The granulation mechanism 4 includes a box body 41, a first support plate 44 is arranged in the box body 41, a second support plate 441 and a translation mechanism 48 are arranged on the first support plate 44, the second support plate 441 is slidably connected to the first support plate 44, the translation mechanism 48 is connected to the second support plate 441, and the translation mechanism 48 controls the second support plate 441 to slide on the first support plate 44; a fixing frame 421, a spray box 42, and an angle adjustment mechanism 43 are arranged on the second support plate 441, the spray box 42 is arranged on the fixing frame 421, and the angle adjustment mechanism 43 is arranged on the second support plate 441. The control mechanism 43 is connected to the spray box 42 and adjusts the spray angle of the spray box 42; a height adjustment mechanism 46 is provided under the first support plate 44, and the height of the first support plate 44 is controlled by the height adjustment mechanism 46; the spray angle and position of the spray box 42 can be controlled by cooperating with the height adjustment mechanism 46, the angle adjustment mechanism 43 and the translation mechanism 48 to achieve the best spraying effect; an air compressor 401 is provided on one side of the granulating mechanism 4, and an air pipe 402 is provided on the air compressor 401 and connected to the spray box 42.

[0027] The rails 2 are provided in pairs and are symmetrically arranged with the center 1 of the electric furnace as the axis. A turntable 21 is provided at the connection of the rails 2, and the turntable 21 is used to control the direction of the shipping trolley 3.

[0028] The slag air quenching mechanism 6 comprises a cooling dust collecting hood 61, on which a spraying mechanism is provided for spraying and cooling, and at the same time, a dust removal device is provided on the cooling dust collecting hood 61 for purifying and removing dust from water vapor.

[0029] The sorting device 8 includes a storage bin 81 and a conveying device 82. The conveying device 82 and the storage bin 81 are fixed by a support frame. The storage bin 81 is provided with a pair of storage bins and is respectively arranged at both ends of the conveying device 82. The lifting device 7 lifts the particles to the conveying device 82, and the particles are conveyed to the storage bin 81 by forward and reverse conveying through the conveying device 82.

[0030] A spray cooling system 47 is provided on one side of the box body 41 to provide emergency cooling capability.

[0031] The height adjustment mechanism 46 includes a motor, a transmission shaft, a lead screw 45, a gear box and a worm gear assembly, which are matched with each other. The height adjustment technology here is the existing technology and will not be described in detail here.

[0032] The angle adjustment mechanism 43 includes a motor and a reduction box. A gear is provided at the output end of the reduction box and meshes with a gear 422 provided on one side of the spray box, thereby achieving an angle control effect. The angle adjustment technology here is existing technology and will not be described in detail.

[0033] The translation mechanism 48 includes a motor and a lead screw, the lead screw is threadedly connected to the second support plate, and the motor controls the lead screw to rotate to drive the second support plate to move; the translation mechanism adjustment technology here is existing technology and will not be described in detail here.

[0034] A fully automatic high-pressure mixed gas slag treatment, recycling and sorting production line, the working process is as follows:

[0035] When the steel slag needs to be granulated, the steel slag in the center 1 of the electric furnace is dumped into the slag pot 301, and then the transport trolley 3 is controlled by the turntable 21 to enter one of the tracks 2 and transported to the control platform 5. At this time, the sorting equipment 8, the lifting equipment 7, the conveying equipment 62, and the granulating mechanism 4 are turned on in sequence through the control platform 5, and then the slag pot 301 is controlled to dump the steel slag into the guide trough 51, and then the steel slag flowing out of the guide trough 51 is granulated by the granulating mechanism 4, and the particles formed after granulation are transported to the lifting equipment 7 via the conveying equipment 62, and the lifting equipment 7 is transferred to the sorting equipment 8 for sorting.

[0036] During the granulation process, the spray box 42 sprays high-speed airflow to impact the slag flowing out of the guide groove 51, so that the liquid slag is quickly cooled and granulated during the process of being blown out and falling to the ground. When falling into the conveying equipment 62, it is cooled by spraying water through the spray mechanism in the slag air quenching mechanism 6. The waste gas generated in this process is dedusted and exhausted through the dust removal equipment on the cooling dust collecting hood 61. The cooled slag particles are transported to the sorting equipment 8 through the lifting equipment 7. The conveying equipment 82 in the sorting equipment 8 uses forward and reverse conveying to convey the particles to the storage bin 81, completing the slag granulation process.

[0037] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A fully automatic high-pressure mixed gas steel slag processing, recycling and sorting production line, including an electric furnace center, a track, and a slag pot; characterized in that A control platform is provided at one end of the track, a guide trough is provided on the control platform, a transport trolley is provided on the track for transporting the slag pot, a granulating mechanism capable of angle, height and position translation is provided on one side of the control platform, the granulating mechanism is arranged below the guide trough, a conveying device is provided on one side of the granulating mechanism, a slag wind quenching mechanism is provided above the conveying device, a lifting device is provided on one side of the conveying device, and a sorting device is provided on one side of the lifting device.

2. The fully automatic high-pressure mixed gas slag processing, recycling and sorting production line according to claim 1 is characterized in that The granulation mechanism includes a box body, a first support plate is arranged in the box body, a second support plate and a translation mechanism are arranged on the first support plate, the second support plate is slidably connected to the first support plate, the translation mechanism is connected to the second support plate, and the translation mechanism controls the second support plate to slide on the first support plate; a fixed frame, a spray box, and an angle adjustment mechanism are arranged on the second support plate, the spray box is arranged on the fixed frame, the angle adjustment mechanism is connected to the spray box and adjusts the spray angle of the spray box; a height adjustment mechanism is arranged under the first support plate, and the height adjustment mechanism controls the first support plate to be adjusted.

3. The fully automatic high-pressure mixed gas slag processing, recycling and sorting production line according to claim 1 is characterized in that The track is provided with a pair and is symmetrically arranged with the center of the electric furnace as the axis. A turntable is provided at the connection of the tracks, and the turntable is used to control the direction of the consignment trolley.

4. The fully automatic high-pressure mixed gas slag processing, recycling and sorting production line according to claim 1 is characterized in that The slag air quenching mechanism comprises a cooling dust collecting hood, on which a spraying mechanism is provided for spraying and cooling, and at the same time, a dust removal device is provided on the cooling dust collecting hood for purifying and removing dust from water vapor.

5. The fully automatic high-pressure mixed gas slag processing, recycling and sorting production line according to claim 1 is characterized in that The sorting device includes a storage bin and a conveying device, and the conveying device and the storage bin are fixed by a support frame; a pair of storage bins are provided and are respectively arranged at both ends of the conveying device, and the lifting device lifts the particles to the conveying device, and the particles are conveyed to the storage bin by forward and reverse conveying of the conveying device.

6. The fully automatic high-pressure mixed gas slag processing, recycling and sorting production line according to claim 1 is characterized in that A spray cooling system is installed on one side of the box to provide emergency cooling capability.

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