Water slag granulating equipment for ironmaking
By designing a water slag granulation equipment for iron smelting including an outer shell frame, an inner rotary shell, upper and lower high-pressure pipes and spray heads, the equipment damage and fine granulation caused by water flow impact are solved, and the efficient granulation and cooling effect is achieved, and the production efficiency and equipment life are improved.
Patent Information
- Application Number
- CN202421741054.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-22
AI Technical Summary
During the existing water slag granulation process, the impact of the water flow causes continuous damage to the outer wall of the equipment, and the low-cost equipment is not fine enough for the granulation, and the cooling effect is low.
A water slag granulation equipment for iron smelting is designed, including an outer shell frame, an inner rotary shell, an upper and lower high-pressure pipe and a spray head. Through the rotation of the inner rotary shell and the spray impact of the high-pressure pipe, the impact on the hot slag is formed, and the heat exchange pipe is used to assist in cooling.
It achieves efficient granulation of water slag, improves production efficiency, reduces crushing costs, and extends the service life of the equipment.
Smart Images
Figure CN222821583U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of ironmaking, and more specifically relates to a slag granulating device used in ironmaking. Background Art
[0002] The slag produced in the ironmaking process is hot slag, which refers to high-temperature slag containing iron, basic oxides, iron oxide, chromium oxide and other components. Slag granulation is the process of turning the slag into granular materials after proper treatment. The main purpose of slag granulation is to reduce the volume of slag, improve the stability of slag, facilitate storage and transportation, and recover valuable components.
[0003] In the existing slag granulation process, if water is used for crushing or mixing, water flow impact may occur. Water flow impact is mostly horizontal impact, which continuously impacts the outer wall of the equipment, affecting the continuous use of the equipment. In addition, low-cost equipment is not fine enough for slag granulation and has a low cooling effect. Utility Model Content
[0004] The purpose of the utility model is to provide a slag granulation equipment for ironmaking in order to solve the above problems, as described below.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] The utility model provides a slag granulation device for ironmaking, comprising an outer shell frame, on which a hot slag port and a slag outlet are arranged, the hot slag port is located obliquely above the outer shell frame, and the slag outlet is located at the bottom of the outer shell frame; an inner rotating shell is rotatably connected inside the outer shell frame, and a motor for driving the inner rotating shell to rotate is arranged at one end of the outer shell frame;
[0007] The side of the outer shell frame is connected with an upper high-pressure pipe and a lower high-pressure pipe, the upper high-pressure pipe passes through the side of the outer shell frame and then extends toward the inner top surface of the outer shell frame, and the lower high-pressure pipe passes through the side of the outer shell frame and then extends toward the inner bottom surface of the outer shell frame;
[0008] The surfaces of the upper high-pressure pipe and the lower high-pressure pipe are provided with nozzles facing the inner rotating shell.
[0009] Furthermore, the outer shell frame is a regular polygonal structure to assist in guiding the slag fragments.
[0010] Furthermore, the outer wall of the inner rotating shell is a regular polygon, and fixing rings are provided at both ends of the inner rotating shell. The outer circular surface of the fixing ring is rotationally sealed with the outer shell frame. The motor is fixedly mounted on the outer shell frame by bolts, and the output shaft of the motor is connected to the fixing ring by a connecting rod.
[0011] Furthermore, a heat exchange pipe is provided in the inner rotating shell. The heat exchange pipe is spiral-shaped, and its liquid inlet and outlet are passed through the end cover on the non-motor end side of the outer shell frame and are connected to the coolant heat exchange system. The coolant heat exchange system at least includes a coolant pump body and a heat exchange box. The coolant pump body, the heat exchange box and the heat exchange pipe are arranged in series, and the heat exchange pipe assists in cooling the surface of the inner rotating shell.
[0012] Furthermore, a plurality of upper high-pressure pipes and lower high-pressure pipes are arranged at equal intervals, which can expand the impact range of the hot slag, further assist the hot slag granulation and perform a large-scale cooling treatment.
[0013] Furthermore, ribs are provided at the edges of the inner wall of the inner rotating shell.
[0014] Furthermore, a guide bar extending toward the inner rotating shell is fixedly connected to the inner wall at the lower end of the hot slag mouth; the guide bar is an arc-shaped structure, the protruding top end of the guide bar is higher than the top of the inner rotating shell, the bottom surface of the guide bar recess is lower than the top of the inner rotating shell, and the length of the guide bar is greater than the distance between the outer frame and the inner rotating shell.
[0015] Furthermore, a plurality of the guide bars are arranged at equal intervals.
[0016] Furthermore, the guide bar is welded to the outer shell frame.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] The utility model provides a granulation device for water slag used in ironmaking. The hot slag flow is impacted and crushed with the rotation of an inner rotating shell and the spraying and impact of upper and lower high-pressure pipes. The inner rotating shell can be driven to rotate by a motor, and the crushed slag is guided by the inner rotating shell to assist in water slag granulation, thereby improving production efficiency and reducing crushing costs. The nozzle can spray water toward the inner shell, and the service life of the equipment is increased with the rotation of the inner shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a schematic diagram of the internal structure of the utility model.
[0021] Figure 2 It is the front view of the utility model.
[0022] Figure 3 It is a structural schematic diagram of the inner shell of the utility model.
[0023] Figure 4 It is a structural schematic diagram of the distribution of the guide bars and the upper and lower high-pressure pipes of the utility model.
[0024] Figure 5 It is a structural schematic diagram of the non-motor end of the inner shell of the utility model.
[0025] Figure 6 It is a schematic diagram of the structure of the utility model after the non-motor end of the inner shell is sealed.
[0026] Figure 7 The utility model is a schematic diagram of a heat exchange pipe having a spiral structure.
[0027] The following are the descriptions of the reference numerals:
[0028] 1. Outer shell frame; 101. Hot slag outlet; 102. Slag outlet; 2. Guide bar; 3. Upper high-pressure pipe; 4. Lower high-pressure pipe; 5. Inner rotating shell; 501. Fixed ring; 502. Heat exchange pipe; 503. Rib; 504. End cover; 6. Motor; 7. Coolant heat exchange system. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0030] Example 1
[0031] See also Figure 1-Figure 4 As shown, the utility model provides a slag granulation device for ironmaking, comprising an outer shell frame 1, on which a hot slag port 101 and a slag outlet 102 are provided, wherein the hot slag port 101 is located obliquely above the outer shell frame 1, and the slag outlet 102 is located at the bottom end of the outer shell frame 1; an inner rotating shell 5 is rotatably connected inside the outer shell frame 1, and a motor 6 for driving the inner rotating shell 5 to rotate is provided at one end of the outer shell frame 1, and the inner rotating shell 5 is driven to rotate by the motor 6, so that after the inner rotating shell 5 rotates, it not only assists in hot slag granulation, but also assists in guiding the crushed slag;
[0032] The side of the outer shell frame 1 is connected with an upper high-pressure pipe 3 and a lower high-pressure pipe 4. The upper high-pressure pipe 3 passes through the side of the outer shell frame 1 and extends toward the inner top surface of the outer shell frame 1. The lower high-pressure pipe 4 passes through the side of the outer shell frame 1 and extends toward the inner bottom surface of the outer shell frame 1.
[0033] The upper high-pressure pipe 3 and the lower high-pressure pipe 4 are provided with nozzles facing the inner rotating shell 5. Figure 1 shown.
[0034] After the hot slag enters the outer shell frame 1, the hot slag flow is affected by the rotation of the inner rotating shell 5 and the spraying impact of the upper high-pressure pipe 3. After the hot slag is guided to the surface of the inner rotating shell 5, it can form crushed slag. After being cooled, the crushed slag rebounds between the inner rotating shell 5 and the outer shell frame 1, and is guided by the outer wall of the inner rotating shell 5 and the inner wall of the outer shell frame 1, and is finally discharged through the slag outlet 102, which assists in the granulation of water slag, improves production efficiency, reduces crushing costs, and enables the nozzle to spray water toward the inner shell. As the inner shell rotates, the service life of the equipment is increased.
[0035] An upper high-pressure pipe 3 and a lower high-pressure pipe 4 are provided in the device and extend toward the top and bottom surfaces of 1 respectively. The upper high-pressure pipe 3 is used to impact the hot slag to assist in granulation of the hot slag, and the lower high-pressure pipe 4 can be used to cool the inner rotating shell 5.
[0036] Preferably, the outer shell frame 1 is a regular polygonal structure, and specifically, the outer shell frame 1 is a regular octagonal structure, which assists in guiding the slag. Figure 1 , Figure 2 shown.
[0037] Preferably, the upper high-pressure pipe 3 and the lower high-pressure pipe 4 are arranged at equal intervals, and the number can be set according to actual conditions, preferably 8, to expand the impact range of the hot slag, further assist the hot slag granulation and perform a large-scale cooling treatment, such as Figure 4 shown.
[0038] Example 2
[0039] The second embodiment is different from the first embodiment in that:
[0040] See also Figure 2 , fixing rings 501 are provided at both ends of the inner rotating shell 5, and the outer circumferential surface of the fixing ring 501 is matched with the outer shell frame 1 for rotational sealing. With this arrangement, a seal between the inner rotating shell 5 and the outer shell frame 1 can be formed through the fixing ring 501, and the motor 6 is fixedly installed on the outer shell frame 1 by bolts, and the output shaft of the motor 6 is connected to the fixing ring 501 through a connecting rod, and the motor 6 is used to drive the fixing ring 501 and the inner rotating shell 5 to rotate.
[0041] Preferably, Figure 5As shown, the interior of the inner rotating shell 5 is a hollow structure, and a heat exchange pipe 502 is arranged in the inner rotating shell 5. The heat exchange pipe 502 is spiral, and its liquid inlet and liquid outlet are passed through the end cover 504 on the non-motor end side of the outer shell frame 1, and are connected to the coolant heat exchange system 7. The coolant heat exchange system 7 at least includes a coolant pump body and a heat exchange box. The coolant pump body, the heat exchange box and the heat exchange pipe 502 are arranged in series, and the valves on the pipeline are cooperated to realize the circulation of the coolant in the heat exchange pipe 502, thereby realizing heat exchange of the inner rotating shell 5. The heat exchange pipe 502 assists in cooling the surface of the inner rotating shell 5; the end cover 504 is used to seal the fixing ring 501 on the non-motor end side of the outer shell frame 1. Preferably, the end cover 504 is connected to the fixing ring 501 by threads.
[0042] Preferably, the outer wall of the inner rotating shell 5 is a regular polygon, and ribs 503 are provided at the edges of the inner wall of the inner rotating shell 5. The ribs 503 are used to provide auxiliary support for the inner rotating shell 5 to improve the supporting strength of the inner rotating shell 5.
[0043] Example 3
[0044] The third embodiment is different from the first and second embodiments in that:
[0045] The inner wall at the lower end of the hot slag outlet 101 is fixedly connected with a guide bar 2 extending toward the inner rotating shell 5. Preferably, the guide bar 2 is welded to the outer shell frame 1; further, the guide bar 2 is an arc-shaped structure, the protruding top end of the guide bar 2 is higher than the top of the inner rotating shell 5, and the bottom surface of the concave part of the guide bar 2 is lower than the top of the inner rotating shell 5. The length of the guide bar 2 is greater than the distance between the outer shell frame 1 and the inner rotating shell 5, which can guide the hot slag and prevent the hot slag from falling directly into the slag outlet 102. The hot slag can be guided to a direction close to the inner rotating shell 5 by the guide bar 2, and the rotation of the inner rotating shell 5 can drive the water slag to be granulated;
[0046] Preferably, a plurality of guide bars 2 are arranged at equal intervals, and the number can be set according to actual conditions, preferably 8, to expand the guiding range of the hot slag.
[0047] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A slag granulation equipment for ironmaking, characterized in that: The invention comprises an outer shell frame (1), wherein a hot slag opening (101) and a slag outlet (102) are provided on the outer shell frame (1), wherein the hot slag opening (101) is located obliquely above the outer shell frame (1), and the slag outlet (102) is located at the bottom end of the outer shell frame (1); an inner rotating shell (5) is rotatably connected inside the outer shell frame (1), and a motor (6) for driving the inner rotating shell (5) to rotate is provided at one end of the outer shell frame (1); The outer shell frame (1) is connected to an upper high-pressure pipe (3) and a lower high-pressure pipe (4) on the side thereof; the upper high-pressure pipe (3) penetrates the side of the outer shell frame (1) and extends toward the inner top surface of the outer shell frame (1); the lower high-pressure pipe (4) penetrates the side of the outer shell frame (1) and extends toward the inner bottom surface of the outer shell frame (1); The surfaces of the upper high-pressure pipe (3) and the lower high-pressure pipe (4) are provided with nozzles facing the inner rotating shell (5).
2. The slag granulation equipment for ironmaking according to claim 1, characterized in that: The outer shell frame (1) is a regular polygonal structure.
3. The slag granulation equipment for ironmaking according to claim 1 or 2, characterized in that: Both ends of the inner rotating shell (5) are provided with fixing rings (501), the outer circumferential surface of the fixing ring (501) is rotationally sealed with the outer shell frame (1), the motor (6) is fixedly mounted on the outer shell frame (1) by means of bolts, and the output shaft of the motor (6) is connected to the fixing ring (501) by means of a connecting rod.
4. The slag granulation equipment for ironmaking according to claim 3, characterized in that: A heat exchange pipe (502) is provided in the inner rotating shell (5), and the heat exchange pipe (502) comprises a liquid inlet end and a liquid outlet end; The liquid inlet and the liquid outlet pass through an end cover (504) on the non-motor end side of the outer housing frame (1) and are connected to a coolant heat exchange system (7); The coolant heat exchange system (7) comprises at least a coolant pump body and a heat exchange box, and the coolant pump body, the heat exchange box and the heat exchange pipe (502) are arranged in series.
5. The slag granulation equipment for ironmaking according to claim 4, characterized in that: The heat exchange pipe (502) is spiral-shaped.
6. The slag granulation equipment for ironmaking according to claim 4, characterized in that: The outer wall of the inner rotating shell (5) is a regular polygon, and ribs (503) are provided at the edges of the inner wall of the inner rotating shell (5).
7. The slag granulation equipment for ironmaking according to claim 1 or 5, characterized in that: A guide bar (2) extending toward the inner rotating shell (5) is fixedly connected to the inner wall of the lower end of the hot slag opening (101); the guide bar (2) is an arc-shaped structure, the protruding top end of the guide bar (2) is higher than the top of the inner rotating shell (5), the bottom surface of the concave part of the guide bar (2) is lower than the top of the inner rotating shell (5), and the length of the guide bar (2) is greater than the distance between the outer frame (1) and the inner rotating shell (5).
8. The slag granulation equipment for ironmaking according to claim 7, characterized in that: A plurality of the guide bars (2) are arranged at equal intervals.
9. The slag granulation equipment for ironmaking according to claim 1, characterized in that: A plurality of upper high-pressure pipes (3) and lower high-pressure pipes (4) are arranged at equal intervals.
10. The slag granulation equipment for ironmaking according to claim 8, characterized in that: The guide bar (2) is welded to the outer shell frame (1).