Iron ore fines sintering proportioning device

Abstract

The present disclosure relates to the technical field of iron concentrate processing equipment, and an embodiment of the present disclosure provides an iron concentrate sintering ore blending device, which comprises a support, an outer tank and an inner tank, the outer tank is rotationally connected in the support through a rotating shaft, the inner tank is rotationally connected in the outer tank, a stirring and discharging assembly is arranged in the outer tank and the inner tank, a feeding auger is fixed at the top of the support, a dispersing feeding assembly is arranged between the support and the feeding auger, the stirring and discharging assembly comprises a stirring motor, the stirring motor is arranged at the bottom of the outer tank, a central stirring frame is arranged at the output end of the stirring motor, an outer gear is arranged at the top of the inner tank, a driving motor is arranged outside the outer tank, a driving gear is arranged at the output end of the driving motor, and the driving gear is engaged with the outer gear. Through the above technical scheme, the technical problem that the material processing is uneven due to the lack of feeding pretreatment structure and the design defects of the mixing mechanism in the traditional ore blending device, which seriously restricts the sintering production quality, is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of iron concentrate processing equipment, specifically to an iron concentrate sintering and blending device. Background Technology

[0002] In the field of iron and steel metallurgy, the iron concentrate sintering and blending process is crucial to the quality of sinter and the efficiency of blast furnace smelting. However, traditional blending equipment lacks a feed pretreatment structure and has design flaws in the mixing mechanism, resulting in significant uneven material processing, which seriously restricts the quality of sintering production.

[0003] The structural drawbacks of the existing equipment are mainly reflected in two aspects: First, the feeding stage lacks pre-treatment functions. Different iron concentrates are directly conveyed from a single silo via a belt conveyor. The feed inlet lacks a processing structure, and high-moisture iron concentrates easily adhere to the surface of the conveyor belt, causing fluctuations in the feed rate. Furthermore, materials with different moisture levels agglomerate due to differences in viscosity during mixing. Second, the mixing structure is poorly designed, employing a single-shaft paddle-type stirring mechanism. The paddle rotation range is limited, only able to agitate local materials and unable to cover the entire mixing chamber, especially creating dead zones at the corners. The stirring shaft speed is not adjustable, making it impossible to achieve differentiated mixing by adapting the speed to materials of different particle sizes. Fine powder and coarse particles segregate due to uneven force. In addition, the bottom of the mixing chamber is a flat structure, making it easy for materials to accumulate and hindering flow. The lack of structures such as guide channels to promote material circulation results in prolonged mixing time while still maintaining uneven composition.

[0004] With the steel industry's increasing requirements for the uniformity of sintered ore, traditional equipment, due to design flaws such as "lack of feed pretreatment and inefficient mixing structure," can no longer meet the needs of modern ore blending. There is an urgent need to solve the industry problem of uneven material processing through innovative designs of feed-end pretreatment components and multi-dimensional mixing structures. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide an iron concentrate sintering blending device, which solves the technical problem that the lack of a feed pretreatment structure and the design defects of the mixing mechanism in the existing traditional blending device leads to the prominent problem of uneven material processing, which seriously restricts the quality of sintering production.

[0006] According to one aspect, at least one embodiment of this disclosure provides an iron concentrate sintering and blending apparatus, comprising:

[0007] The system comprises a support frame, an outer tank, and an inner tank, wherein the outer tank is rotatably connected to the support frame via a rotating shaft, and the inner tank is rotatably connected to the outer tank.

[0008] A mixing and discharging assembly is disposed in the outer tank and the inner tank;

[0009] The feeding auger and the dispersing feeding assembly are provided, wherein the feeding auger is fixed to the top of the support, and the dispersing feeding assembly is disposed between the support and the feeding auger;

[0010] The mixing and discharging assembly includes a mixing motor, which is located at the bottom of the outer tank. A central mixing frame is provided at the output end of the mixing motor. An external gear is provided at the top of the inner tank. A drive motor is provided outside the outer tank. A drive gear is provided at the output end of the drive motor. The drive gear meshes with the external gear.

[0011] As a further technical solution, the inner wall of the inner tank is provided with spiral blades, a control motor is provided on one side of the support, a main gear is provided at the output end of the control motor, and a secondary gear is provided on the rotating shaft of the outer tank, the secondary gear meshing with the main gear.

[0012] As a further technical solution, the dispersive feeding assembly includes a feeding tank, which is fixed to the top of the support and connected to the feeding auger. The feeding tank is located directly above the outer tank, and the bottom of the feeding tank has an open structure.

[0013] As a further technical solution, a dispersing pipe is rotatably connected to the bottom of the feed tank, a processing motor is installed on the top of the support, and a transmission wheel is installed at the output end of the processing motor and around the bottom of the dispersing pipe. The transmission wheels are connected by belt drive.

[0014] As a further technical solution, the outer tank can be rotated 90° by controlling a motor.

[0015] As a further technical solution, the lower end of the dispersion pipe has an inclined and bent transition structure, and the bottom opening of the dispersion pipe is offset from the axis of rotation.

[0016] As a further technical solution, the lower end of the dispersing pipe is higher than the top of the outer tank.

[0017] As a further technical solution, a dispersing frame is fixedly connected to the top of the feed tank, and the lower end of the dispersing frame is located inside the dispersing pipe.

[0018] The beneficial effects of the embodiments disclosed herein are as follows:

[0019] 1. In this disclosure, the mixing and discharging assembly uses a mixing motor to drive a central mixing frame to mix materials in the inner and outer tanks. The motor drives the inner tank to rotate, and the spiral blades on the inner wall enhance the mixing effect. The motor controls the rotation of the outer tank to achieve discharging. The spiral blade pitch gradually changes to ensure that the material is pushed evenly. The combined motion of the outer and inner tanks forms multi-dimensional mixing, covering the entire mixing chamber, avoiding mixing dead zones, solving the problem of limited mixing range in traditional devices, improving mixing uniformity, and ensuring that there is no material residue when discharging by flipping the outer tank in conjunction with the spiral blades.

[0020] 2. In this disclosure, the processing motor of the dispersing feeding component drives the dispersing pipe to rotate through the transmission wheel and belt, and evenly throws the material in the feeding tank to the outer tank through the bottom discharge hole. The guide plate on the inner wall of the dispersing pipe throws the material out along the tangential direction to avoid accumulation. The dispersing rack in the feeding tank prevents the material from clogging. The lower end of the dispersing pipe is inclined and bent off the axis to expand the dispersing range. This component realizes the uniform distribution of material in the feeding stage, lays the foundation for subsequent stirring, solves the problem of uneven feeding in traditional devices, and the labyrinth-type sealing structure prevents dust from overflowing and improves the safety of the working environment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0023] Figure 2 This is an isometric drawing of the present disclosure;

[0024] Figure 3 This is an isometric sectional view of the present disclosure;

[0025] Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle;

[0026] In the diagram: 1. Support frame; 2. Outer tank; 3. Inner tank; 4. Feeding auger; 5. Mixing and discharging assembly; 5-1. Agitator motor; 5-2. Central mixing frame; 5-3. External gear; 5-4. Drive motor; 5-5. Drive gear; 5-6. Spiral blade; 5-7. Control motor; 5-8. Main gear; 5-9. Secondary gear; 6. Dispersion feeding assembly; 6-1. Feed tank; 6-2. Dispersion pipe; 6-3. Processing motor; 6-4. Transmission wheel. Detailed Implementation

[0027] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0028] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0030] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] like Figures 1-4 As shown, it illustrates an iron concentrate sintering and blending apparatus according to an embodiment of the present disclosure, comprising:

[0034] The system comprises a support 1, an outer tank 2, and an inner tank 3. The outer tank 2 is rotatably connected to the support 1 via a rotating shaft, and the inner tank 3 is rotatably connected to the outer tank 2.

[0035] A mixing and discharging assembly 5 is disposed in the outer tank 2 and the inner tank 3;

[0036] The feeding auger 4 and the dispersing feeding assembly 6 are provided. The feeding auger 4 is fixed to the top of the support 1, and the dispersing feeding assembly 6 is disposed between the support 1 and the feeding auger 4.

[0037] The mixing and discharging assembly 5 includes a mixing motor 5-1, which is located at the bottom of the outer tank 2. A central mixing frame 5-2 is located at the output end of the mixing motor 5-1. An external gear 5-3 is located at the top of the inner tank 3. A drive motor 5-4 is located outside the outer tank 2. A drive gear 5-5 is located at the output end of the drive motor 5-4. The drive gear 5-5 meshes with the external gear 5-3. A spiral blade 5-6 is located on the inner wall of the inner tank 3. A control motor 5-7 is located on one side of the support 1. A main gear 5-8 is located at the output end of the control motor 5-7. A secondary gear 5-9 is located on the rotating shaft of the outer tank 2. The secondary gear 5-9 meshes with the main gear.

[0038] In some examples, a mixing and discharging assembly 5 is designed to achieve tilting and stirring assistance during discharge. This assembly uses a stirring motor 5-1 located at the bottom of the outer tank 2 as its power source, and its output center stirring frame 5-2 can mix the material between the inner and outer tanks 2. The drive motor 5-4 outside the outer tank 2 meshes with the external gear 5-3 at the top of the inner tank 3 via a drive gear 5-5, driving the inner tank 3 to rotate. The spiral blades 5-6 on the inner wall can both stir the material during rotation, ensuring uniform mixing of iron concentrate and flux, and during discharge, through gear transmission between the rotating shaft of the outer tank 2 and the main gear 5-8 at the output of the control motor 5-7, drive the outer tank 2 to tilt. Combined with the pushing action of the spiral blades 5-6, this conveys the material from the inner tank 3 to the outlet of the outer tank 2. The spiral blades 5-6 are made of wear-resistant manganese steel with a hardened surface to withstand the friction of iron concentrate, and their pitch gradually increases from the inside to the outside, ensuring uniform material delivery.

[0039] Through the combined action of rotating and stirring the inner tank 3, flipping the outer tank 2, and pushing with the spiral blades 5-6, the mixing and discharging component 5 achieves efficient mixing and directional discharge of materials.

[0040] like Figures 1-4As shown in the figure, the dispersion feeding assembly 6 in this embodiment includes a feeding tank 6-1, which is fixed to the top of the support 1. The feeding tank 6-1 is connected to the feeding auger 4 and is located directly above the outer tank 2. The bottom of the feeding tank 6-1 is an open structure. A dispersion pipe 6-2 is rotatably connected to the bottom of the feeding tank 6-1. A processing motor 6-3 is provided on the top of the support 1. A transmission wheel 6-4 is provided around the output end of the processing motor 6-3 and the bottom of the dispersion pipe 6-2. The transmission wheels 6-4 are connected to each other by belt drive.

[0041] In some examples, a dispersing feed assembly 6 is designed to avoid material accumulation affecting mixing efficiency. This assembly centers on a feed tank 6-1 fixed to the top of the support 1, with a dispersing pipe 6-2 rotating at its bottom opening, driven by a processing motor 6-3. The output of the processing motor 6-3 is connected to a drive wheel 6-4 at the bottom of the dispersing pipe 6-2 via a belt drive, causing the dispersing pipe 6-2 to rotate circumferentially. This allows the iron concentrate and flux, transported by the feed auger 4 to the feed tank 6-1, to be evenly dispersed into the outer tank 2 through several outlet holes at the bottom of the dispersing pipe 6-2, covering a large area of ​​the outer tank 2's cross-section. A guide plate is installed on the inner wall of the dispersing pipe 6-2 to guide the material out tangentially, preventing it from falling vertically and accumulating.

[0042] A labyrinthine sealing structure is used between the feed tank 6-1 and the dispersion pipe 6-2 to prevent dust from spilling out. By using the design of the motor 6-3 to drive the dispersion pipe 6-2 to rotate and the guide plate to guide the material dispersion and scattering, the dispersion feed assembly 6 achieves uniform material input, ensuring the efficiency and mixing uniformity of the subsequent mixing process.

[0043] For example, such as Figure 2 As shown, the outer tank 2 can be driven to rotate 90° by controlling motors 5-7.

[0044] In some examples, by rotating the outer tank 2 by 90°, it can be rotated to a horizontal position, which, together with the spiral blades 5-6, can fully discharge the material without leaving any residue.

[0045] For example, such as Figure 3 As shown, the lower end of the dispersion pipe 6-2 has an inclined and bent transition structure, and the bottom opening of the dispersion pipe 6-2 is offset from the axis of rotation.

[0046] In some examples, the lower end of the dispersion pipe 6-2 is deviated from the axis by a bending transition, so that the material can be dispersed and fall into the inner tank 3 when rotated. Combined with the continuously running stirring structure, it can achieve full and efficient stirring.

[0047] For example, such as Figure 1As shown, the lower end of the dispersion pipe 6-2 is higher than the top of the outer tank 2.

[0048] In some examples, the higher height avoids obstruction by the dispersing pipe 6-2 when the outer tank 2 rotates.

[0049] For example, such as Figure 3 As shown, a dispersing frame is fixedly connected to the top of the feed tank 6-1, and the lower end of the dispersing frame is located inside the dispersing pipe 6-2.

[0050] In some examples, by setting up a dispersing rack in conjunction with a continuously rotating dispersing pipe 6-2, it is possible to avoid material accumulation that could lead to blockages and prevent material discharge.

[0051] In actual use: The bracket 1 is fixed, the outer tank 2 is installed inside the bracket 1 via a rotating shaft, and the inner tank 3 is rotatably connected to the outer tank 2. The stirring motor 5-1 of the stirring and discharging assembly 5 is installed at the bottom of the outer tank 2, with its output end connected to the central stirring frame 5-2. The external drive motor 5-4 of the outer tank 2 meshes with the external gear 5-3 of the inner tank 3 via a drive gear 5-5. Spiral blades 5-6 are installed on the inner wall of the inner tank 3. The control motor 5-7 on one side of the bracket 1 meshes with the secondary gear 5-9 on the rotating shaft of the outer tank 2 via a main gear 5-8. The feeding auger 4 is fixed to the top of the bracket 1, and the feeding tank of the dispersing feeding assembly 6 is... 6-1 is connected to the feeding auger 4 and located above the outer tank 2. The bottom rotating set of the dispersion pipe 6-2 is connected to the feeding auger 4 and located above the outer tank 2. The processing motor 6-3 drives the dispersion pipe 6-2 to rotate through the transmission wheel 6-4 and belt. The top of the inner tank 6-1 is equipped with a dispersion frame. When in use, the feeding auger 4 feeds the material into the inner tank 6-1. The processing motor 6-3 drives the dispersion pipe 6-2 to rotate and disperse the material to the outer tank 2. The stirring motor 5-1 drives the central stirring frame 5-2 to stir. The drive motor 5-4 drives the inner tank 3 to rotate. The spiral blade 5-6 assists in mixing. The control motor 5-7 drives the outer tank 2 to rotate 90° to discharge the material.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A device for sintering and blending iron concentrate, characterized in that, include: The bracket (1), outer tank (2) and inner tank (3) are provided. The outer tank (2) is rotatably connected to the bracket (1) via a rotating shaft, and the inner tank (3) is rotatably connected to the outer tank (2). A mixing and discharging assembly (5) is disposed in the outer tank (2) and the inner tank (3); The feeding auger (4) and the dispersing feeding assembly (6) are provided. The feeding auger (4) is fixed to the top of the support (1), and the dispersing feeding assembly (6) is disposed between the support (1) and the feeding auger (4). The mixing and discharging assembly (5) includes a mixing motor (5-1), which is located at the bottom of the outer tank (2). A central mixing frame (5-2) is provided at the output end of the mixing motor (5-1). An external gear (5-3) is provided at the top of the inner tank (3). A drive motor (5-4) is provided outside the outer tank (2). A drive gear (5-5) is provided at the output end of the drive motor (5-4). The drive gear (5-5) meshes with the external gear (5-3).

2. The iron concentrate sintering and blending device according to claim 1, characterized in that, The inner wall of the inner tank (3) is provided with spiral blades (5-6), the support (1) is provided with a control motor (5-7) on one side, the output end of the control motor (5-7) is provided with a main gear (5-8), and the rotating shaft of the outer tank (2) is provided with a secondary gear (5-9), which meshes with the main gear (5-8).

3. The iron concentrate sintering and blending device according to claim 1, characterized in that, The dispersive feeding assembly (6) includes a feeding tank (6-1), which is fixed on the top of the support (1). The feeding tank (6-1) is connected to the feeding auger (4). The feeding tank (6-1) is located directly above the outer tank (2). The bottom of the feeding tank (6-1) is an open structure.

4. The iron concentrate sintering and blending device according to claim 3, characterized in that, The bottom of the feed tank (6-1) is rotatably connected to a dispersing pipe (6-2), and the top of the support (1) is equipped with a processing motor (6-3). The output end of the processing motor (6-3) and the bottom of the dispersing pipe (6-2) are both equipped with transmission wheels (6-4), and the transmission wheels (6-4) are connected by belt drive.

5. The iron concentrate sintering and blending device according to claim 2, characterized in that, The outer tank (2) can be driven to rotate 90° by controlling the motor (5-7).

6. The iron concentrate sintering and blending device according to claim 4, characterized in that, The lower end of the dispersion pipe (6-2) has an inclined and bent transition structure, and the bottom opening of the dispersion pipe (6-2) is offset from the axis of rotation.

7. The iron concentrate sintering and blending device according to claim 4, characterized in that, The lower end of the dispersion pipe (6-2) is higher than the top of the outer tank (2).

8. The iron concentrate sintering and blending device according to claim 4, characterized in that, A dispersing frame (7) is fixedly connected to the top of the feed tank (6-1), and the lower end of the dispersing frame (7) is located inside the dispersing pipe (6-2).

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