Metallurgical dust and mud rotary kiln slag waste heat exchange device
By crushing kiln slag and combining it with a movable plate design, the problems of incomplete heat dissipation and blockage caused by large-sized kiln slag particles were solved, achieving efficient waste heat recovery and stable operation of the equipment.
Patent Information
- Application Number
- CN202520470032.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-20
- Estimated Expiration
- 2035-03-18
AI Technical Summary
In existing rotary kiln slag waste heat exchange devices for metallurgical dust and sludge, the large particle size of the kiln slag prevents heat from being completely dissipated and easily causes blockage, affecting heat exchange efficiency.
The kiln slag is crushed by a crusher shell and crushing wheel before entering the heat exchange cylinder to exchange heat with water. Combined with the design of movable plates and pins, the kiln slag is prevented from clogging and the heat exchange efficiency is improved.
It improves heat exchange efficiency, avoids kiln slag blockage, and enhances the working efficiency of the equipment.
Smart Images
Figure CN224018844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste heat exchange technology, and more specifically, to a waste heat exchange device for metallurgical dust and sludge rotary kiln slag. Background Technology
[0002] Kiln slag is a type of waste generated during the kiln firing process. It is mainly composed of water-quenched slag from semi-molten high-iron and silica furnace materials, and is characterized by large particle size, high residual carbon, high hardness, and high content of valuable metals in low concentrations.
[0003] Processed kiln slag contains a large amount of heat, with a maximum temperature of 800 to 1000 degrees Celsius. Generally, when recovering the heat from kiln slag, the slag is stuffed into the interior of a device, and then a screw conveyor moves the slag upwards. The heat from the slag is transferred to water in the external water pipes through the outer shell of the device, thus achieving heat exchange. However, because some of the kiln slag is quite large after processing, it is impossible to completely dissipate the internal heat. Therefore, it is necessary to improve and optimize the process. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a waste heat exchange device for metallurgical dust and sludge rotary kiln slag, which has the advantages of high heat exchange efficiency and avoidance of blockage.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste heat exchange device for metallurgical dust and sludge rotary kiln slag, comprising a bottom column, and a support mechanism fixedly installed above the bottom column;
[0006] A crusher housing is fixedly installed above the support mechanism. Two rollers are rotatably installed on one side of the crusher housing. One end of each roller extends into the interior of the crusher housing. A crushing wheel is fixedly installed on one end of each roller. A belt is connected between the two rollers. A bracket is fixedly installed on one side of the crusher housing. A motor is fixedly installed on one side of the bracket. The drive shaft of the motor is fixedly connected to one side of one of the rollers.
[0007] As a preferred embodiment of this utility model, a heat exchange cylinder is fixedly installed above the support mechanism. One end of the heat exchange cylinder extends to the bottom of the support mechanism. A baffle is hinged to the bottom of the heat exchange cylinder. A shell is fixedly installed on one side of the heat exchange cylinder. A movable plate is movably installed inside the shell. A spring is fixedly installed on one side of the movable plate. A fixed plate is fixedly installed at one end of the spring. A limit rod is fixedly installed on one side of the movable plate. One end of the limit rod passes through the left and right sides of the fixed plate and extends to the outside of the shell. A pin is fixedly installed on the other side of the movable plate. A socket is fixedly installed on the side of the baffle. One end of the socket extends into the inside of the shell. The socket is movably engaged with the pin. The fixed plate is fixedly connected to the shell.
[0008] As a preferred technical solution of this utility model, the support mechanism includes a base plate fixedly disposed above the bottom column, a support column fixedly installed above the base plate, the top of the support column being fixedly connected to the bottom of the crusher shell, a feed pipe being connected to the bottom of the crusher shell, one end of the feed pipe being connected to the side of the heat exchange cylinder, and the base plate being fixedly connected to the heat exchange cylinder.
[0009] As a preferred embodiment of this utility model, a feed inlet is provided on the top of the crusher shell, and the feed inlet is interconnected with the interior of the crusher shell.
[0010] As a preferred embodiment of this utility model, a second motor is fixedly installed above the heat exchange cylinder, and the drive shaft of the second motor extends into the interior of the heat exchange cylinder and is fixedly installed with an auger.
[0011] As a preferred embodiment of this utility model, the outer surface of the heat exchange cylinder is wound with a water pipe, and a discharge port is provided on the side of the heat exchange cylinder.
[0012] As a preferred embodiment of this utility model, a protective cover is fixedly installed above the heat exchange cylinder, and the protective cover is located outside the motor.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model starts a motor through a controller, which drives a roller to rotate. The other roller rotates through a belt drive. The rotation of the two rollers drives the two crushing wheels to rotate. The kiln slag is then added into the crusher shell. After being crushed by the crushing wheels and the inner wall of the crusher shell, it enters the feed pipe and finally enters the interior of the heat exchange cylinder. Compared with traditional devices, this device improves the heat exchange efficiency by crushing the kiln slag before exchanging heat with water, thereby improving the working efficiency of the device.
[0015] 2. This utility model moves the movable plate backward by moving the limiting rod backward, compressing the spring and moving the pin backward until the pin is completely removed from the inside of the sleeve frame. At this time, the baffle can be opened to release the kiln slag inside the heat exchange cylinder, preventing the kiln slag falling from above the auger from blocking the inside of the heat exchange cylinder and affecting the rotation of the auger, thereby reducing the efficiency of the auger in transporting kiln slag. This improves the working efficiency of the device and avoids the blockage of kiln slag. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the heat exchanger cylinder of this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the outer shell of this utility model;
[0019] Figure 4 This utility model Figure 3 A magnified view of part A;
[0020] Figure 5 This is a schematic diagram of the crusher wheel structure of this utility model;
[0021] Figure 6 This utility model Figure 5 A magnified view of part B;
[0022] Figure 7 This is a schematic diagram of the outer shell structure of the crusher of this utility model.
[0023] In the diagram: 1. Base column; 2. Base plate; 3. Support column; 4. Crusher housing; 5. Bracket; 6. Motor 1; 7. Roller; 8. Belt; 9. Crushing wheel; 10. Feed inlet; 11. Feed pipe; 12. Heat exchanger; 13. Protective cover; 14. Water pipe; 15. Motor 2; 16. Screwdriver; 17. Discharge port; 18. Baffle; 19. Housing; 20. Fixing plate; 21. Spring; 22. Limiting rod; 23. Movable plate; 24. Pin; 25. Connecting frame. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] like Figures 1 to 7As shown, this utility model provides a waste heat exchange device for metallurgical dust and sludge rotary kiln slag, including a bottom column 1, and a support mechanism is fixedly installed above the bottom column 1.
[0026] A crusher housing 4 is fixedly installed on the top of the support mechanism. Two rollers 7 are rotatably installed on one side of the crusher housing 4. One end of the rollers 7 extends into the interior of the crusher housing 4. A crushing wheel 9 is fixedly installed on one end of the rollers 7. A belt 8 is connected between the two rollers 7. A bracket 5 is fixedly installed on one side of the crusher housing 4. A motor 6 is fixedly installed on one side of the bracket 5. The drive shaft of the motor 6 is fixedly connected to one side of one of the rollers 7.
[0027] When the operator uses the machine, they first start motor 6 via the controller. When motor 6 starts, it drives roller 7 to rotate. When roller 7 rotates, it drives another roller 7 to rotate via belt 8. The rotation of the two rollers 7 drives the rotation of the two crushing wheels 9. When both crushing wheels 9 are rotating, the kiln slag is then fed into the inside of the crusher shell 4 through the feed inlet 10. The kiln slag is crushed by the rotation of the crushing wheels 9 and the squeezing of the inner wall of the crusher shell 4, so that the large pieces of kiln slag are crushed and enter the inside of the feed pipe 11, and finally enter the inside of the heat exchange cylinder 12.
[0028] The controller starts motor 6, which drives roller 7 to rotate. Through belt 8, another roller 7 rotates. The rotation of the two rollers 7 drives the two crushing wheels 9 to rotate. The kiln slag is then added into the crusher shell 4. After being crushed by the crushing wheels 9 and the inner wall of the crusher shell 4, it enters the feed pipe 11 and finally enters the interior of the heat exchange cylinder 12. Compared with the traditional device, this device can improve the heat exchange efficiency by crushing the kiln slag before exchanging heat with water, thereby improving the working efficiency of the device.
[0029] The heat exchange cylinder 12 is fixedly installed on the top of the support mechanism. One end of the heat exchange cylinder 12 extends to the bottom of the support mechanism. A baffle 18 is hinged to the bottom of the heat exchange cylinder 12. A shell 19 is fixedly installed on one side of the heat exchange cylinder 12. A movable plate 23 is movably installed inside the shell 19. A spring 21 is fixedly installed on one side of the movable plate 23. A fixed plate 20 is fixedly installed on one end of the spring 21. A limit rod 22 is fixedly installed on one side of the movable plate 23. One end of the limit rod 22 passes through the left and right sides of the fixed plate 20 and extends to the outside of the shell 19. A pin 24 is fixedly installed on the other side of the movable plate 23. A socket bracket 25 is fixedly installed on the side of the baffle 18. One end of the socket bracket 25 extends into the inside of the shell 19. The socket bracket 25 is movably connected to the pin 24. The fixed plate 20 is fixedly connected to the shell 19.
[0030] When the operator uses the device, they first move the limiting rod 22 backward. When the limiting rod 22 moves backward, it will cause the movable plate 23 to move backward. When the movable plate 23 moves backward, it will cause the spring 21 to be compressed. When the spring 21 is compressed and the movable plate 23 moves backward, it will cause the pin 24 to move backward. When the pin 24 moves backward, one end of the pin 24 will gradually move out of the socket 25. When the pin 24 is completely moved out of the socket 25, the baffle 18 can be opened.
[0031] By moving the limiting rod 22 backward, the movable plate 23 moves backward, compressing the spring 21 and causing the pin 24 to move backward until the pin 24 is completely removed from the inside of the sleeve frame 25. At this point, the baffle 18 can be opened to release the kiln slag inside the heat exchange cylinder 12, preventing the kiln slag falling from above the auger 16 from blocking the inside of the heat exchange cylinder 12 and affecting the rotation of the auger 16, thereby reducing the efficiency of the auger 16 in transporting kiln slag. This improves the working efficiency of the device and avoids the blockage of kiln slag.
[0032] The support mechanism includes a base plate 2 fixedly installed above the base column 1, a support column 3 fixedly installed above the base plate 2, the top of the support column 3 being fixedly connected to the bottom of the crusher housing 4, a feed pipe 11 being connected to the bottom of the crusher housing 4, one end of the feed pipe 11 being connected to the side of the heat exchange cylinder 12, and the base plate 2 being fixedly connected to the heat exchange cylinder 12.
[0033] The position of the heat exchange cylinder 12 is fixed by the design of the base plate 2 and the support column 3.
[0034] The crusher housing 4 has a feed inlet 10 on its upper part, and the feed inlet 10 is connected to the interior of the crusher housing 4.
[0035] The design of the feed inlet 10 facilitates the addition of kiln slag into the interior of the crusher shell 4, thereby making it easier to crush the kiln slag.
[0036] Among them, a second motor 15 is fixedly installed above the heat exchange cylinder 12, and the drive shaft of the second motor 15 extends into the interior of the heat exchange cylinder 12 and is fixedly installed with an auger 16.
[0037] The controller starts motor 215, which drives the auger 16 to rotate. When the auger 16 rotates, it causes the kiln slag to rise.
[0038] The heat exchange cylinder 12 has a water pipe 14 wound around its outer surface, and a discharge port 17 is provided on its side.
[0039] The design of the water pipe 14 facilitates the flow of water into the interior of the water pipe 14, thereby absorbing the heat from the kiln slag inside the heat exchange cylinder 12.
[0040] A protective cover 13 is fixedly installed above the heat exchange cylinder 12, and the protective cover 13 is located outside the motor 15.
[0041] The protective cover 13 is designed to protect the second motor 15 and improve the safety of the second motor 15 during operation.
[0042] Working principle and usage process of this utility model:
[0043] When the operator uses the machine, they first start motor 6 via the controller. When motor 6 starts, it drives roller 7 to rotate. When roller 7 rotates, it drives another roller 7 to rotate via belt 8. The rotation of the two rollers 7 drives the rotation of the two crushing wheels 9. When both crushing wheels 9 are rotating, the kiln slag is then fed into the inside of the crusher shell 4 through the feed inlet 10. The kiln slag is crushed by the rotation of the crushing wheels 9 and the squeezing of the inner wall of the crusher shell 4, so that the large pieces of kiln slag are crushed and enter the inside of the feed pipe 11, and finally enter the inside of the heat exchange cylinder 12.
[0044] When the operator uses the device, they first move the limiting rod 22 backward. When the limiting rod 22 moves backward, it will cause the movable plate 23 to move backward. When the movable plate 23 moves backward, it will cause the spring 21 to be compressed. When the spring 21 is compressed and the movable plate 23 moves backward, it will cause the pin 24 to move backward. When the pin 24 moves backward, one end of the pin 24 will gradually move out of the socket 25. When the pin 24 is completely moved out of the socket 25, the baffle 18 can be opened.
[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A waste heat exchange device for metallurgical dust and sludge rotary kiln slag, comprising a bottom column (1), characterized in that: A support mechanism is fixedly installed above the bottom column (1); A crusher housing (4) is fixedly installed above the support mechanism. Two rollers (7) are rotatably installed on one side of the crusher housing (4). One end of the rollers (7) extends into the interior of the crusher housing (4). A crushing wheel (9) is fixedly installed on one end of the rollers (7). A belt (8) is connected between the two rollers (7). A bracket (5) is fixedly installed on one side of the crusher housing (4). A motor (6) is fixedly installed on one side of the bracket (5). The drive shaft of the motor (6) is fixedly connected to one side of one of the rollers (7).
2. The waste heat exchange device for metallurgical dust and sludge rotary kiln slag according to claim 1, characterized in that: A heat exchange cylinder (12) is fixedly installed above the support mechanism. One end of the heat exchange cylinder (12) extends to the bottom of the support mechanism. A baffle (18) is hinged to the bottom of the heat exchange cylinder (12). A shell (19) is fixedly installed on one side of the heat exchange cylinder (12). A movable plate (23) is movably installed inside the shell (19). A spring (21) is fixedly installed on one side of the movable plate (23). A fixed plate (20) is fixedly installed at one end of the spring (21). The movable plate (23) has... A limiting rod (22) is fixedly installed on one side. One end of the limiting rod (22) passes through the left and right sides of the fixed plate (20) and extends to the outside of the outer shell (19). A pin (24) is fixedly installed on the other side of the movable plate (23). A socket bracket (25) is fixedly installed on the side of the baffle (18). One end of the socket bracket (25) extends into the inside of the outer shell (19). The socket bracket (25) is movably connected to the pin (24). The fixed plate (20) is fixedly connected to the outer shell (19).
3. The waste heat exchange device for metallurgical dust and sludge rotary kiln slag according to claim 1, characterized in that: The support mechanism includes a base plate (2) fixedly installed above the base column (1), a support column (3) fixedly installed above the base plate (2), the top of the support column (3) being fixedly connected to the bottom of the crusher shell (4), the bottom of the crusher shell (4) being connected to a feed pipe (11), one end of the feed pipe (11) being connected to the side of the heat exchange cylinder (12), and the base plate (2) being fixedly connected to the heat exchange cylinder (12).
4. The waste heat exchange device for metallurgical dust and sludge rotary kiln slag according to claim 1, characterized in that: The crusher housing (4) has a feed inlet (10) on its upper part, and the feed inlet (10) communicates with the interior of the crusher housing (4).
5. A waste heat exchange device for metallurgical dust and sludge rotary kiln slag according to claim 2, characterized in that: A second motor (15) is fixedly installed above the heat exchange cylinder (12), and the drive shaft of the second motor (15) extends into the interior of the heat exchange cylinder (12) and is fixedly installed with an auger (16).
6. The waste heat exchange device for metallurgical dust and sludge rotary kiln slag according to claim 2, characterized in that: The outer surface of the heat exchange cylinder (12) is wrapped with a water pipe (14), and a discharge port (17) is provided on the side of the heat exchange cylinder (12).
7. The waste heat exchange device for metallurgical dust and sludge rotary kiln slag according to claim 2, characterized in that: A protective cover (13) is fixedly installed above the heat exchange cylinder (12), and the protective cover (13) is located outside the motor (15).