Slag cooler for cooling stainless steel slag

Abstract

The utility model relates to the technical field of stainless steel slag recovery treatment, in particular to a slag cooler for stainless steel slag cooling treatment, which comprises a mounting frame, a rotary drum, a motor and two support rings, the two support rings are fixedly mounted on the top wall of the mounting frame, the rotary drum is rotatably mounted on the two support rings, and the motor is mounted on the rotary drum. A rotary drum is arranged on the mounting rack, a gear ring is arranged on the rotary drum, the motor is fixedly mounted on the top wall of the mounting rack, the output end of the motor is meshed with the gear ring, sleeves are rotatably mounted at two ends of the rotary drum, and an air inlet, a feeding hole, a discharging hole and an air outlet are respectively formed in the two sleeves. The cold air conveying device is arranged at the air inlet of the rotary drum, cold air is used for cooling stainless steel slag entering the rotary drum, gas flows out of the air outlet and then is directly treated through the waste heat recovery device, the safety of cooling treatment is high, the resource utilization rate is high, and energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel slag recovery and treatment, in particular to a slag cooler for cooling treatment of stainless steel slag. Background Technique

[0002] During the production and manufacturing of stainless steel products, it is inevitable to produce stainless steel slag. The initial state of the stainless steel slag is in a high-temperature state, and the treatment of stainless steel slag requires steps such as cooling and crushing.

[0003] At present, natural cooling, water spraying cooling and other methods are generally used for the cooling treatment of stainless steel slag. Not only is the cooling efficiency low, but also the amount of water used for each cooling is large. After the water flows through the stainless steel slag, it contains impurities, and a sewage treatment system needs to be added to treat the water source to avoid environmental pollution, which brings great challenges to clean production.

[0004] Although there are already membrane type slag coolers that can be used for the cooling of stainless steel slag, due to concerns that large stones in the steel slag entering the slag cooler may cause wear and even damage to the slag cooler, resulting in water leakage of the slag cooler, and water leakage in the high-temperature section is prone to safety accidents such as suffocation explosions. Therefore, the particle size requirements for the steel slag entering the slag cooler are relatively high, and the existing slag cooler does not have a crushing effect on stainless steel slag, and its processing efficiency is low.

[0005] Therefore, a slag cooler for cooling treatment of stainless steel slag is proposed. Content of the Utility Model

[0006] The purpose of the utility model is to provide a slag cooler for cooling treatment of stainless steel slag. By setting a cold air conveying device to convey cold air into the rotating cylinder and using the cold air to cool the high-temperature stainless steel slag, the problems raised in the above background technique are solved.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A slag cooler for cooling treatment of stainless steel slag, comprising.

[0009] It includes a mounting frame, a rotating cylinder, a motor, and a support ring. There are two support rings, and both support rings are fixedly installed on the top wall of the mounting frame. The rotating cylinder is rotatably installed on the two support rings. A toothed ring is provided on the rotating cylinder. The motor is fixedly installed on the top wall of the mounting frame, and the output end of the motor meshes with the toothed ring. Sleeves are rotatably installed at both ends of the rotating cylinder, and an air inlet, a feed inlet, a discharge outlet, and an air outlet are respectively provided on the two sleeves.

[0010] Preferably, a plurality of material lifting plates are fixedly installed inside the rotating cylinder. The plurality of material lifting plates are arranged in an annular array along the inside of the rotating cylinder, and each material lifting plate is provided with rectangular teeth.

[0011] The material lifting plate is divided into a first part and a second part, and the width of the first part is greater than the width of the second part.

[0012] Preferably, a lower heat exchange interlayer is fixedly installed on the mounting frame, and an upper heat exchange interlayer is fixedly installed on the lower heat exchange interlayer by screws. The lower heat exchange interlayer and the upper heat exchange interlayer wrap the rotating drum, and ventilation grooves are provided on the upper heat exchange interlayer and the lower heat exchange interlayer, and multiple ventilation grooves are arranged in an arc shape.

[0013] The rotating drum is further provided with a heat exchange interlayer, and the heat exchange interlayer is provided with a plurality of ventilation grooves arranged at intervals, and the plurality of ventilation grooves are arranged in an arc shape.

[0014] Preferably, the rotating drum and the mounting frame are arranged at an inclination angle of 2-4 degrees.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. A cold air conveying device is provided at the air inlet of the drum, which uses cold air to cool the stainless steel slag entering the drum. The gas flows out from the air outlet and is directly processed by the waste heat recovery device. The cooling treatment has high safety, low resource utilization, and strong energy conservation and environmental protection.

[0017] 2. Set the inclination angle of the rotating drum and the mounting frame to 2-4 degrees. During the cooling process, the stainless steel slag can automatically move to the other side of the rotating drum according to the action of gravity. A lifting plate is also set inside the rotating drum to lift the stainless steel slag to a specified height and then drop it, thereby crushing the stainless steel slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the internal three-dimensional structure without a heat exchange interlayer;

[0019] Figure 2 It is a side structural diagram of a heat exchange interlayer structure;

[0020] Figure 3 It is a side sectional view of the drum;

[0021] Figure 4 Schematic diagram of the lifting plate structure.

[0022] In the figure: 1. Mounting frame; 2. Rotating drum; 3. Motor; 4. Support ring; 5. Sleeve; 6. Air outlet; 7. Discharge port; 8. Feed port; 9. Air inlet; 10. Gear ring; 11. Lifting plate; 1101. Part 1; 1102. Part 2; 12. Ventilation groove; 13. Lower heat exchange interlayer; 14. Upper heat exchange interlayer. DETAILED DESCRIPTION

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 3 , the present invention provides a slag cooler for stainless steel slag cooling treatment, and the technical solution is as follows:

[0025] A slag cooler for stainless steel slag cooling treatment includes a mounting frame 1, a rotary drum 2, a motor 3, and a support ring 4. There are two support rings 4, and both support rings 4 are fixedly installed on the top wall of the mounting frame 1. The rotary drum 2 is rotatably installed on the two support rings 4. A toothed ring 10 is provided on the rotary drum 2. The motor 3 is fixedly installed on the top wall of the mounting frame 1, and the output end of the motor 3 meshes with the toothed ring 10. Sleeves 5 are rotatably installed at both ends of the rotary drum 2, and an air inlet 9, a feed inlet 8, a discharge outlet 7, and an air outlet 6 are respectively provided on the two sleeves 5.

[0026] As Figure 1 and Figure 2 shown, a cold air intake device is connected to the air inlet 9, the feed inlet 8 is docked with an external feeding device, a stainless steel slag recovery device is provided below the discharge outlet 7, and a waste heat recovery device is connected to the air outlet 6. Stainless steel slag enters the sleeve 5 from the feed inlet 8 and then enters the inside of the rotary drum 2. The cold air intake device pumps cold air into the air inlet 9 of the cold air intake device, and the flow rate of the cold air is controlled to be 2 m / s.

[0027] The motor 3 drives the rotary drum 2 to rotate continuously, so that the cold air blows evenly over the surface of the stainless steel slag to better cool the stainless steel slag. The cooled stainless steel slag falls from the discharge outlet 7 at the other end. After the cold air is heated and rises in temperature, it flows into the waste heat recovery device through the air outlet 6. The rotary drum 2 is inclined with respect to the mounting frame 1, and the inclination angle is 2 - 4 degrees, so that the stainless steel slag moves towards the other side of the rotary drum 2 by itself when the rotary drum 2 rotates continuously.

[0028] As Figure 3 and Figure 4 shown, a plurality of material lifting plates 11 are fixedly installed inside the rotary drum 2. The plurality of material lifting plates 11 are arranged in a circular array along the inside of the rotary drum 2, and each material lifting plate 11 is provided with rectangular teeth.

[0029] After the stainless steel slag enters the inside of the rotary drum 2, it is continuously lifted to a certain height by the material lifting plate 11 and then falls. When the steel slag falls and hits the toothed material lifting plate 11, it plays a crushing role. During this whole process, the steel slag does not directly slide relative to the cooling cylinder, avoiding abrasion of the rotary drum 2.

[0030] The material lifting plate 11 is divided into a first part 1101 and a second part 1102, and the width of the first part 1101 is greater than that of the second part 1102; the toothed part is arranged on the first part 1101. Since the stainless steel slag has not been pulverized when it enters the first part, and the width of the first part is larger, it helps to lift more stainless steel slag. After the stainless steel slag flows to the second part, some of it has been pulverized, and the amount of stainless steel slag to be lifted is less. Therefore, the width of the material lifting plate 11 is smaller, which is beneficial to improving the cooling efficiency.

[0031] As Figure 3 As shown, a lower heat exchange sandwich layer 13 is fixedly installed on the mounting frame 1, and an upper heat exchange sandwich layer 14 is fixedly installed on the lower heat exchange sandwich layer 13 by screws. The lower heat exchange sandwich layer 13 and the upper heat exchange sandwich layer 14 wrap the rotary drum 2, and there is a gap between the lower heat exchange sandwich layer 13 and the upper heat exchange sandwich layer 14 and the outer wall of the rotary drum 2, and they do not directly contact the rotary drum 2. Ventilation grooves 12 are formed on both the upper heat exchange sandwich layer 14 and the lower heat exchange sandwich layer 13. A plurality of the ventilation grooves 12 are arc-shaped, and a plurality of the ventilation grooves 12 are all communicated with the cold air inlet device and the air outlet 6 through pipes. The upper heat exchange sandwich layer 14 and the lower heat exchange sandwich layer 13 absorb the heat transferred by the rotary drum 2 through heat radiation propagation, and cold air is introduced into the ventilation grooves 12 to take away the heat, and the heat transfer efficiency is high.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slag cooler for cooling treatment of stainless steel slag, characterized in that: It includes a mounting frame (1), a rotating cylinder (2), a motor (3), and a support ring (4). There are two support rings (4), and both of the two support rings (4) are fixedly installed on the top wall of the mounting frame (1). The rotating cylinder (2) is rotatably installed on the two support rings (4). A toothed ring (10) is provided on the rotating cylinder (2). The motor (3) is fixedly installed on the top wall of the mounting frame (1), and the output end of the motor (3) meshes with the toothed ring (10). Sleeves (5) are rotatably installed at both ends of the rotating cylinder (2), and an air inlet (9), a feed inlet (8), a discharge outlet (7), and an air outlet (6) are respectively provided on the two sleeves (5).

2. The slag cooler for cooling stainless steel slag according to claim 1, characterized in that: A plurality of material lifting plates (11) are fixedly installed inside the rotating cylinder (2), and the plurality of material lifting plates (11) are arranged in a circular array along the inside of the rotating cylinder (2). Each material lifting plate (11) is provided with rectangular teeth.

3. The slag cooler for cooling stainless steel slag according to claim 2, wherein: The material lifting plate (11) is divided into a first part (1101) and a second part (1102), and the width of the first part (1101) is greater than the width of the second part (1102).

4. The slag cooler for cooling stainless steel slag according to claim 3, wherein: A lower heat exchange interlayer (13) is fixedly installed on the mounting frame (1), and an upper heat exchange interlayer (14) is fixedly installed on the lower heat exchange interlayer (13) by screws. The lower heat exchange interlayer (13) and the upper heat exchange interlayer (14) wrap the rotating cylinder (2), and a plurality of ventilation grooves (12) are provided on both the upper heat exchange interlayer (14) and the lower heat exchange interlayer (13); A heat exchange interlayer (13) is further provided on the rotating cylinder (2), and a plurality of ventilation grooves (12) arranged at intervals are provided on the heat exchange interlayer (13), and the plurality of ventilation grooves (12) are arc-shaped.

5. The slag cooler for cooling treatment of stainless steel slag according to claim 1, wherein: The rotating cylinder (2) is inclined with respect to the mounting frame (1), and the inclination angle is 2-4 degrees.

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