CN219314971U - Energy-saving and environment-friendly treatment system for high-temperature liquid steel slag - Google Patents
Energy-saving and environment-friendly treatment system for high-temperature liquid steel slag Download PDFInfo
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- CN219314971U CN219314971U CN202320494898.7U CN202320494898U CN219314971U CN 219314971 U CN219314971 U CN 219314971U CN 202320494898 U CN202320494898 U CN 202320494898U CN 219314971 U CN219314971 U CN 219314971U
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Abstract
The utility model belongs to the technical field of steel slag heat treatment, and particularly relates to an energy-saving and environment-friendly treatment system for high-temperature liquid steel slag; the device comprises a steel slag crushing and heat absorbing roller, a bracket mechanism for supporting and driving the roller to rotate and turn over, and a circulating air system, wherein a material port of the steel slag crushing and heat absorbing roller is connected with a separable exhaust pipe, and a pipe port of the exhaust pipe is rotationally sealed with the steel slag crushing and heat absorbing roller; the air inlet of the steel slag crushing heat absorbing roller is connected with a separable air inlet pipe, the pipe orifice of the air inlet pipe is rotationally sealed with the steel slag crushing heat absorbing roller, and a circulating air system circularly supplies air to the inside of the steel slag crushing heat absorbing roller through the air inlet pipe and an exhaust pipe; crushing teeth are distributed on the inner wall of the steel slag crushing heat absorbing roller; the heat exchange and cooling are carried out through the circulating cooling air, and the hot air can generate clean saturated steam or high-pressure superheated steam, so that additional benefits are brought to customers. It is expected that by recovering the sensible heat of the high temperature steel slag, about 1.2 kilojoules of heat per ton of steel slag can be recovered, corresponding to 40KG of standard coal.
Description
Technical Field
The utility model belongs to the technical field of steel slag heat treatment, and particularly relates to an energy-saving and environment-friendly treatment system for high-temperature liquid steel slag.
Background
High temperature liquid steel slag is a byproduct of the steelmaking process. The iron is composed of various oxides formed by oxidizing impurities such as silicon, manganese, phosphorus, sulfur and the like in pig iron in the smelting process and salts generated by the reaction of the oxides and a solvent. Steel slag contains a number of useful components: 2-8% of metallic iron, 40-60% of calcium oxide, 3-10% of magnesium oxide and 1-8% of manganese oxide, so that the alloy can be used as a ferrous metallurgy raw material. The temperature of the liquid steel slag flowing out of the smelting furnace is high, about 1600 degrees, and after the liquid steel slag is discharged from the smelting furnace, the liquid steel slag needs to be further treated to quickly cool. The current high-temperature liquid steel slag treatment process method comprises the following steps: hot splashing method, roller method, pressured hot disintegrating method, disintegrating slag pool method. Various advantages and disadvantages are realized, and other processes are applied to different degrees except that the hot splashing method cannot be eliminated due to the fact that the organized emission cannot be realized. The main principle is that water is directly poured on the high-temperature liquid steel slag to quickly cool the steel slag. But all have a fundamental disadvantage: the high-temperature heat resource of the steel slag is wasted, a large amount of water vapor with dust is generated by spraying water to the high-temperature steel slag for cooling, the dust removing workload of the system is greatly increased, the operation energy consumption is high, the project investment can not be withdrawn through the operation of the project, and the cost burden of enterprises can only be further increased. The principle of the roller method is that high-temperature liquid steel slag is fed into a roller rotating at high speed, water is fed into the roller to be used as cooling medium, and the cooling medium is quenched, solidified and crushed. Has the advantages of fast slag discharge, small occupied area, small pollution and stable slag particle performance. The disadvantage is that a large amount of dust and water vapor is generated, and a dust removal system is required to be added. The cooling method is that water is directly contacted with high-temperature steel slag, and is rapidly cooled, ferric oxide and water molecules are produced into ferric oxide at high temperature, and the ferric oxide is magnetic and is difficult to separate by a subsequent magnetic separation device, so that the waste of steel is caused.
Disclosure of Invention
The utility model provides the energy-saving and environment-friendly treatment device for the high-temperature liquid steel slag, which has the advantages of low steel slag treatment cost, environment protection, reaching the standard and full recycling.
The utility model adopts the following technical scheme: the energy-saving and environment-friendly treatment system for the high-temperature liquid steel slag comprises a steel slag crushing and heat absorbing roller, a bracket mechanism for supporting and driving the roller to rotate and turn over, and a circulating air system, wherein a material port of the steel slag crushing and heat absorbing roller is connected with a separable exhaust pipe, and a pipe port of the exhaust pipe is rotationally sealed with the steel slag crushing and heat absorbing roller; the air inlet of the steel slag crushing heat absorbing roller is connected with a separable air inlet pipe, the pipe orifice of the air inlet pipe is rotationally sealed with the steel slag crushing heat absorbing roller, and a circulating air system circularly supplies air to the inside of the steel slag crushing heat absorbing roller through the air inlet pipe and an exhaust pipe; crushing teeth are distributed on the inner wall of the steel slag crushing heat absorbing roller.
Further, the steel slag crushing heat absorbing roller is characterized in that two ends of the cylinder are respectively connected with a conical cylinder, the tip end of the conical cylinder is provided with an opening, the opening of one conical cylinder at one side is used as a material port, the opening of the conical cylinder at the other side is used as an air port, and an openable gate plate is arranged at the air port.
Further, the outermost layer of the steel slag crushing heat absorbing roller is a steel plate, the middle layer is a heat insulating layer, the inner wall is a wear-resistant steel plate layer, a plurality of crushing teeth are arranged on the wear-resistant steel plate layer, and slag blocking plates which are perpendicular to the inner wall of the roller and have lengths along the axial direction of the roller are arranged between the crushing teeth.
Further, a guide groove matched with the flashboard is arranged on the steel slag crushing heat absorbing roller, when the steel slag crushing heat absorbing roller is fed, the air inlet pipe is separated from contact with the steel slag crushing heat absorbing roller, and the flashboard seals the air inlet.
Further, the circulating air system comprises a main air pipe connected in parallel according to the temperature gradient, and an induced draft fan, a bag-type dust remover, a heat exchanger and a gravity dust remover which are connected in series in sequence and connected with each level of main air pipe; the steel slag crushing heat absorption roller is divided into an ultrahigh temperature Duan Guntong roller, a high temperature section roller and a medium temperature Duan Guntong roller; the ultra-high temperature Duan Guntong, the high temperature section roller and the medium temperature Duan Guntong are connected with the main air pipe through the air inlet pipe and the air exhaust pipe.
Further, the pipe orifice of the exhaust pipe is an openable sealing cover, a supporting ring of the sealing cover is sleeved outside the material orifice and is in transition with the steel slag crushing heat absorbing roller to form rotary sealing by using a hairbrush, and a cover plate of the sealing cover is opened and closed by a hydraulic push rod.
Further, the steel slag crushing heat absorbing roller is supported by a bracket mechanism and drives the roller to rotate and turn over, two ends of a middle cylinder section of the steel slag crushing heat absorbing roller are respectively provided with a cam, the bracket mechanism is provided with two corresponding concave wheels, and the concave wheels cooperate to realize the rotation and axial and radial limit of the steel slag crushing heat absorbing roller; the middle cylinder section is also provided with a movable gear which is meshed with a driving gear connected with a driving motor, and the driving motor is arranged on the bracket mechanism.
Further, the bracket mechanism is divided into two parts, the upper bracket and the steel slag crushing and heat absorbing roller are integrated, the upper bracket is provided with a pair of trunnions at the gravity center position of the steel slag crushing and heat absorbing roller, and the trunnions are seated on the U-shaped support of the lower bracket; the outer end of the trunnion is provided with a gear which is meshed with a power gear fixed on the lower bracket to drive the upper bracket and the steel slag crushing heat absorbing roller to turn over.
Further, one side of the exhaust pipe connected with the material port is arranged on the sliding trolley, and one side of the air inlet pipe connected with the air port is arranged on the sliding trolley.
Compared with the prior art, the utility model has the advantages that:
1. the high-temperature steel slag is cooled and crushed in a closed environment, and large dust is not generated in the process, so that the dust removal and environmental protection investment and energy consumption are saved. Compared with slag bed rolling heat crushing, the method predicts 30% lower environmental investment and more than 50% lower operation energy consumption.
2. The steel slag subjected to circulating air cooling is not contacted with water, iron components in the steel slag cannot be oxidized into weak-magnetic ferrous iron due to the fact that the steel slag is contacted with water at high temperature, the iron recovery benefit is increased to the greatest extent, and the magnetic separation iron content can be expected to be improved by 20%.
3. The heat exchange and cooling are carried out through the circulating cooling air, and the hot air can generate clean saturated steam or high-pressure superheated steam, so that additional benefits are brought to customers. It is expected that by recovering the sensible heat of the high temperature steel slag, about 1.2 kilojoules of heat per ton of steel slag can be recovered, corresponding to 40KG of standard coal.
Drawings
FIG. 1 is a schematic diagram of a connection of a steel slag crushing heat absorbing roller with an air inlet pipe and an exhaust pipe;
FIG. 2 is a cross-sectional view of a steel slag crushing heat absorbing roller;
FIG. 3 is a schematic view of a slag baffle installed in a slag crushing heat absorbing roller;
FIG. 4 is a schematic diagram (front view) of the connection of the steel slag crushing heat absorbing roller and the bracket mechanism;
FIG. 5 is a schematic diagram showing the connection of the steel slag crushing heat absorbing roller and the bracket mechanism (side view);
FIG. 6 is a diagram of the feeding process of the steel slag crushing heat absorbing roller;
FIG. 7 is a schematic diagram of a steel slag crushing heat absorbing roller connected with a circulating wind system;
FIG. 8 is a drawing of a discharging state of the steel slag crushing heat absorbing roller;
in the figure: 1-a steel slag crushing heat absorbing roller; 1.1-a material port; 1.2-tuyere; 1.3-steel plate; 1.4-a heat insulation layer; 1.5-abrasion-resistant steel plate layers; 1.6-crushing teeth; 1.7-slag trap; 1 a-superhigh temperature Duan Guntong; 1 b-a high temperature section roller; 1 c-medium temperature Duan Guntong; 2-a main air pipe; 3-induced draft fan; 4-a bag-type dust remover; a 5-heat exchanger; 6-a gravity dust remover; 7-an air inlet pipe; 8-an exhaust pipe; 9-flashboard; 10-supporting rings; 11-a slipping trolley; 12-cam; 13-concave wheels; 14-a movable gear; 15-a drive gear; 16-an upper bracket; 17-U-shaped supports; 18-trunnion; 19-a lower bracket; 20-charging pot; 21-a slag receiving hopper; 22-a chute; 23-a solid slag receiving tank; 24-dust hood.
Detailed Description
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
As shown in fig. 1: the energy-saving and environment-friendly treatment system for the high-temperature liquid steel slag comprises a steel slag crushing and heat absorbing roller 1, a bracket mechanism for supporting and driving the roller to rotate and turn over, and a circulating air system, wherein a material port 1.1 of the steel slag crushing and heat absorbing roller 1 is connected with a separable exhaust pipe 8, and a pipe port of the exhaust pipe 8 is rotationally sealed with the steel slag crushing and heat absorbing roller 1; the air inlet 1.2 of the steel slag crushing heat absorbing roller 1 is connected with a separable air inlet pipe 7, the pipe orifice of the air inlet pipe 7 is rotationally sealed with the steel slag crushing heat absorbing roller 1, and a circulating air system circularly supplies air to the inside of the steel slag crushing heat absorbing roller 1 through the air inlet pipe 7 and an exhaust pipe 8; crushing teeth 1.6 are distributed on the inner wall of the steel slag crushing heat absorbing roller 1.
One side of the exhaust pipe 8 connected with the material port 1.1 is arranged on the sliding trolley 11, and one side of the air inlet pipe 7 connected with the air port 1.2 is arranged on the sliding trolley 11, so that the connection or the separation with the steel slag crushing heat absorbing roller 1 is facilitated.
The steel slag crushing heat absorbing roller 1 is characterized in that two ends of a cylinder are respectively connected with a conical cylinder, the tip end of the conical cylinder is provided with an opening, the opening of one conical cylinder at one side is used as a material port 1.1, the opening of the conical cylinder at the other side is used as an air port 1.2, and an openable gate plate 9 is arranged at the air port 1.2; the diameter of the material port 1.1 is larger than that of the tuyere 1.2.
The steel slag crushing heat absorbing roller 1 is provided with a guide groove matched with the flashboard 9, before the steel slag crushing heat absorbing roller 1 is fed, the air inlet pipe 7 is separated from contact with the steel slag crushing heat absorbing roller 1, and the flashboard 9 is used for sealing the air inlet 1.2.
The mouth of the exhaust pipe 8 is a openable sealing cover, a supporting ring 10 of the sealing cover is sleeved outside the material port 1.1 and forms rotary sealing with the lap joint of the steel slag crushing and heat absorbing roller 1 by using a hairbrush in a transitional manner, and a cover plate of the sealing cover is opened and closed by a hydraulic push rod.
As shown in fig. 2: the outermost layer of the steel slag crushing heat absorbing roller 1 is a steel plate 1.3, the middle layer is a heat insulation layer 1.4, the inner wall is a wear-resistant steel plate layer 1.5, and a plurality of crushing teeth 1.6 are arranged on the wear-resistant steel plate layer 1.5. The outermost layer is made of common carbon steel or galvanized steel sheet, the outermost layer is used for keeping the basic shape of the steel slag crushing heat absorbing roller 1, the wear-resistant steel plate layer 1.5 bears the impact of steel slag, the heat insulation layer 1.4 prevents the internal high temperature from radiating outwards, and the safety of a production area is improved.
As shown in fig. 3: slag blocking plates 1.7 which are perpendicular to the inner wall of the roller and have lengths along the axial direction of the roller are arranged among the crushing teeth 1.6, the heights of the slag blocking plates 1.7 are equivalent to those of the crushing teeth 1.6, when the roller rotates, the slag blocking plates 1.7 carry part of steel slag upwards, when the slag blocking plates 1.7 move to the top of the roller, the carried steel slag falls down completely, and the falling high-temperature steel slag is fully contacted with circulating air passing at a high speed to perform forced heat exchange.
As shown in fig. 4 and 5: the steel slag crushing heat absorbing roller 1 is supported and driven by a bracket mechanism to rotate and turn over, two ends of a middle cylinder section of the steel slag crushing heat absorbing roller 1 are respectively provided with a cam 12, the bracket mechanism is provided with two corresponding concave wheels 13, and the concave wheels cooperate to realize the rotation and axial and radial limit of the steel slag crushing heat absorbing roller 1; when the bracket mechanism drives the roller to turn up and down, the concave-convex wheel structure plays roles of holding the roller tightly and limiting and preventing falling. The middle cylinder section is also provided with a movable gear 14, the movable gear 14 is meshed with a driving gear 15 connected with a driving motor, and the driving motor is arranged on the bracket mechanism; the bracket mechanism drives the steel slag crushing heat absorbing roller 1 to turn over during material receiving and discharging, and the steel slag crushing heat absorbing roller 1 is horizontally arranged during thermal crushing and heat absorbing operation, and the driving motor drives the steel slag crushing heat absorbing roller to rotate by 360 degrees through the driving gear 15 and the driving gear 14.
The bracket mechanism is divided into two parts, an upper bracket 16 and the steel slag crushing and heat absorbing roller 1 are integrated, a pair of trunnions 18 are arranged on the upper bracket 16 at the gravity center position of the steel slag crushing and heat absorbing roller 1, and the trunnions 18 are seated on U-shaped supports 17 of a lower bracket 19; the outer end of the trunnion 18 is provided with a gear which is meshed with a power gear fixed on the lower bracket 19 to drive the upper bracket 16 and the steel slag crushing heat absorbing roller 1 to turn over, and the power gear is connected with a torque input mechanism which can be a motor.
In order to improve the heat absorption economy and obtain high-temperature steam with higher quality, at least three steel slag crushing heat absorption rollers 1 absorb heat simultaneously, and the heat absorption process is divided into three stages of ultrahigh temperature, high temperature and medium temperature; except for a small amount of air supplement, the heat absorbing air is usually recycled in a closed mode.
As shown in fig. 7: the circulating air system comprises a main air pipe 2 connected in parallel according to a temperature gradient, and an induced draft fan 3, a bag-type dust remover 4, a heat exchanger 5 and a gravity dust remover 6 which are connected in series with each level of main air pipe 2 in sequence; the steel slag crushing heat absorption roller 1 is divided into an ultrahigh temperature Duan Guntong a, a high temperature section roller 1b and a medium temperature Duan Guntong c; the ultra-high temperature Duan Guntong a, the high temperature section roller 1b and the medium temperature Duan Guntong c are all connected into the main air pipe 2 through the air inlet pipe 7 and the exhaust pipe 8; the normal temperature wind which completes heat exchange through the heat exchanger 5 enters the medium temperature Duan Guntong c, enters the high temperature section roller 1b after exiting the medium temperature Duan Guntong c, enters the ultra-high temperature Duan Guntong 1a after exiting the high temperature section roller 1b, enters the gravity dust remover 6 after exiting the ultra-high temperature Duan Guntong a to remove carried granular dust, then enters the heat exchanger 5, enters the bag dust remover 4 to remove dust after exiting the heat exchanger 5, and the normal temperature wind after dust removal returns to the medium temperature Duan Guntong 1c through the induced draft fan 3, thus the cycle is performed. When the air pressure of the circulating air system is insufficient, the induced draft fan 3 sucks normal-temperature air for supplementing.
As shown in fig. 6: the high-temperature liquid steel slag is filtered before being sent into the steel slag crushing heat absorbing roller 1. The steel slag crushing heat absorbing roller 1 is used for conveying slag from a steel slag receiving hopper 21, a grid with sharp corners is arranged in the steel slag receiving hopper 21 and used for allowing steel slag smaller than the aperture of the grid to pass through, and large slag such as slag at the bottom of a tank is blocked at the upper part of the grid; the side surface of the upper part of the grid is provided with movable steel bars, and the movable steel bars are driven by a hydraulic mechanism to horizontally enter and exit the hopper and are used for crushing large steel slag which stays at the upper part of the grid; the lower part of the steel slag receiving hopper 21 is connected with a chute 22 with an angle of 45 degrees, and the opening of the chute extends into the lower steel slag crushing heat absorbing roller 1. The high-temperature steel slag is transported to a steel slag receiving hopper 21 through a feed tank 20 and is fed into the steel slag crushing heat absorbing drum 1 through a chute 22.
The process flow for treating the high-temperature steel slag by using the system comprises the following steps:
1. the high-temperature liquid steel slag is transported to a slag treatment workshop by a slag pot car and is moved to a special slag pouring platform by a crane;
2. pouring high-temperature liquid steel slag into a special steel slag receiving hopper 21 by using an incoming material tank 20 on a platform, and conveying the high-temperature liquid steel slag filtered by the slag receiving hopper 21 into a steel slag crushing heat absorbing roller 1 through a chute 22. Before the steel slag crushing heat absorbing roller 1 is ready for feeding, the air inlet pipe 7 is separated from contact with the roller, and the air inlet 1.2 is closed by the flashboard 9; and opening a sealing cover at the position of the material port 1.1, and enabling the steel slag crushing heat absorbing roller 1 to rotate 45 degrees clockwise under the drive of a rotatable bracket mechanism, wherein the material port 1.1 is obliquely upwards and is used for receiving high-temperature steel slag. After the slag receiving hopper 21 discharges slag, the movable slag receiving hopper 21 and the chute 22 are moved away; the steel slag crushing heat absorbing roller 1 is driven by the bracket mechanism to rotate anticlockwise by 90 degrees and is horizontally placed.
3. When the steel slag crushing heat absorbing roller 1 performs heat crushing and heat absorbing operation, the steel slag crushing heat absorbing roller is horizontally placed, and the driving motor drives the steel slag crushing heat absorbing roller to rotate by 360 degrees through the driving gear 15 and the moving gear 14.
4. After the steel slag is cooled and crushed in the steel slag crushing heat absorbing roller 1, an opening cover is opened, the steel slag is crushed and cooled to 300-400 ℃, the roller is driven by a rotatable bracket mechanism to rotate anticlockwise by 90 degrees, the material opening 1.1 faces the ground completely, and medium-low temperature steel slag in the roller is poured into a solid slag receiving tank 23 at the lower part. The solid slag receiving tank 23 is placed on a special trolley, the trolley is moved along the track, and the solid slag receiving tank 23 is sent into a slag stewing operation area for stewing slag.
5. Setting a sufficient number of slag stewing positions according to the slag quantity to be treated in a workshop; a slag stewing tank cover is arranged above each slag stewing position, can be automatically controlled to open and close, and a water spraying device and a dust collection pipeline are integrated on the tank cover. The solid slag receiving tank 23 is covered with a tank cover after being in place, water is sprayed to the steel slag in the tank, saturated steam can be generated after the water is sprayed to the solid steel slag at about 300 ℃, the pulverization of the steel slag is accelerated, and the slag-iron separation is realized; excessive steam generated by spraying water and generated dust are sucked into an external main dust removing pipeline through a dust removing pipeline on the tank cover for centralized treatment.
6. After the slag stewing operation is completed, the solid slag receiving tank 23 is suspended to the magnetic separation area by using the inter-room internal crane to remove slag, and the empty tank emptied of slag is returned to the slag receiving trolley to return to the slag crushing area to receive slag.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An energy-saving and environment-friendly treatment system for high-temperature liquid steel slag is characterized in that: the device comprises a steel slag crushing and heat absorbing roller (1), a bracket mechanism for supporting and driving the roller to rotate and turn over, and a circulating air system, wherein a material port (1.1) of the steel slag crushing and heat absorbing roller (1) is connected with a separable exhaust pipe (8), and a pipe orifice of the exhaust pipe (8) is rotationally sealed with the steel slag crushing and heat absorbing roller (1); the air inlet (1.2) of the steel slag crushing and heat absorbing roller (1) is connected with a separable air inlet pipe (7), the pipe orifice of the air inlet pipe (7) is rotationally sealed with the steel slag crushing and heat absorbing roller (1), and a circulating air system circularly supplies air to the inside of the steel slag crushing and heat absorbing roller (1) through the air inlet pipe (7) and an exhaust pipe (8); crushing teeth (1.6) are distributed on the inner wall of the steel slag crushing heat absorbing roller (1).
2. The energy-saving and environment-friendly treatment system for high-temperature liquid steel slag according to claim 1, wherein the energy-saving and environment-friendly treatment system is characterized in that: the steel slag crushing heat absorbing roller (1) is characterized in that two ends of a cylinder are respectively connected with a cone, the tip end of the cone is provided with an opening, the opening of one cone on one side is used as a material port (1.1), the opening of the cone on the other side is used as an air port (1.2), and an openable gate plate (9) is arranged at the air port (1.2).
3. The energy-saving and environment-friendly treatment system for high-temperature liquid steel slag according to claim 2, wherein the energy-saving and environment-friendly treatment system is characterized in that: the steel slag crushing heat absorbing roller (1) is characterized in that the outermost layer of the steel slag crushing heat absorbing roller (1) is a steel plate (1.3), the middle layer is a heat insulation layer (1.4), the inner wall of the steel slag crushing heat absorbing roller is a wear-resistant steel plate layer (1.5), a plurality of crushing teeth (1.6) are arranged on the wear-resistant steel plate layer (1.5), and slag blocking plates (1.7) which are perpendicular to the inner wall of the roller and have lengths along the axial direction of the roller are arranged among the crushing teeth (1.6).
4. The energy-saving and environment-friendly treatment system for high-temperature liquid steel slag according to claim 2, wherein the energy-saving and environment-friendly treatment system is characterized in that: the steel slag crushing heat absorbing roller (1) is provided with a guide groove matched with the flashboard (9), when the steel slag crushing heat absorbing roller (1) is fed, the air inlet pipe (7) is separated from the steel slag crushing heat absorbing roller (1), and the flashboard (9) seals the air port (1.2).
5. The energy-saving and environment-friendly treatment system for high-temperature liquid steel slag according to claim 1, wherein the energy-saving and environment-friendly treatment system is characterized in that: the circulating air system comprises a main air pipe (2) connected in parallel according to a temperature gradient, and an induced draft fan (3), a bag-type dust remover (4), a heat exchanger (5) and a gravity dust remover (6) which are connected in series in sequence and connected with each level of main air pipe (2); the steel slag crushing heat absorption roller (1) comprises an ultrahigh temperature Duan Guntong (1 a), a high temperature section roller (1 b) and a medium temperature Duan Guntong (1 c); the ultra-high temperature Duan Guntong (1 a), the high temperature section roller (1 b) and the medium temperature Duan Guntong (1 c) are connected into the main air pipe (2) through the air inlet pipe (7) and the exhaust pipe (8).
6. The energy-saving and environment-friendly treatment system for high-temperature liquid steel slag according to claim 2, wherein the energy-saving and environment-friendly treatment system is characterized in that: the pipe orifice of the exhaust pipe (8) is a sealing cover which can be opened and closed, a supporting ring (10) of the sealing cover is sleeved outside the material orifice (1.1) and forms rotary sealing with the lap joint of the steel slag crushing heat absorbing roller (1) by using a hairbrush in a transitional manner, and a cover plate of the sealing cover is opened and closed by a hydraulic push rod.
7. The energy-saving and environment-friendly treatment system for high-temperature liquid steel slag according to claim 1, wherein the energy-saving and environment-friendly treatment system is characterized in that: the steel slag crushing heat absorbing roller (1) is supported and driven by a bracket mechanism to rotate and turn over, two ends of a middle cylinder section of the steel slag crushing heat absorbing roller (1) are respectively provided with a cam (12), the bracket mechanism is provided with two corresponding concave wheels (13), and the concave wheels are matched to realize the rotation and axial and radial limit of the steel slag crushing heat absorbing roller (1); the middle cylinder section is also provided with a movable gear (14), the movable gear (14) is meshed with a driving gear (15) connected with a driving motor, and the driving motor is arranged on the bracket mechanism.
8. The energy-saving and environment-friendly treatment system for high-temperature liquid steel slag, as claimed in claim 7, wherein: the bracket mechanism is divided into two parts, an upper bracket (16) and the steel slag crushing and heat absorbing roller (1) are integrated, the upper bracket (16) is provided with a pair of trunnions (18) at the gravity center position of the steel slag crushing and heat absorbing roller (1), and the trunnions (18) are seated on a U-shaped support (17) of a lower bracket (19); the outer end of the trunnion (18) is provided with a gear which is meshed with a power gear fixed on the lower bracket (19) to drive the upper bracket (16) and the steel slag crushing heat absorbing roller (1) to turn over.
9. The energy-saving and environment-friendly treatment system for high-temperature liquid steel slag according to claim 1, wherein the energy-saving and environment-friendly treatment system is characterized in that: one side of the exhaust pipe (8) connected with the material port (1.1) is arranged on the sliding trolley (11), and one side of the air inlet pipe (7) connected with the air port (1.2) is arranged on the sliding trolley (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320494898.7U CN219314971U (en) | 2023-03-15 | 2023-03-15 | Energy-saving and environment-friendly treatment system for high-temperature liquid steel slag |
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| CN202320494898.7U CN219314971U (en) | 2023-03-15 | 2023-03-15 | Energy-saving and environment-friendly treatment system for high-temperature liquid steel slag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116287494A (en) * | 2023-03-15 | 2023-06-23 | 山西航金环保科技有限公司 | Energy-saving and environment-friendly treatment method for high-temperature liquid steel slag |
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2023
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116287494A (en) * | 2023-03-15 | 2023-06-23 | 山西航金环保科技有限公司 | Energy-saving and environment-friendly treatment method for high-temperature liquid steel slag |
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