An admixture dispensing device

Abstract

This utility model discloses an additive dispensing device, belonging to the field of pre-charging in steelmaking. It includes: a support frame with a first mounting part and a second mounting part above it; a weighing sensor mounted on the first mounting part; a storage cylinder mounted on the weighing sensor; the storage cylinder includes a storage part for storing the additive, a feeding part for the additive to pass through at the bottom of the storage part, and a first control part above the feeding part for controlling the opening and closing of the channel; a funnel with multiple circumferentially spaced release holes for the additive to leak out; and a second control part above the release holes for controlling the opening and closing of the funnel. This utility model achieves uniform and equal dispensing within a predetermined area when adding additives into the furnace. To a certain extent, it overcomes the shortcomings of existing technologies that can only dispense additives sequentially or unevenly, thereby optimizing the slag-forming effect in steelmaking.

Description

Technical Field

[0001] This utility model relates to the field of pre-processing material feeding in steelmaking, and in particular to an additive dispensing device. Background Technology

[0002] Slag formation is an essential part of the steelmaking and ironmaking processes. In steelmaking and ironmaking, the impurities in the steel must be reduced. These impurities are separated and enter the molten slag. Because the slag is lightweight, it floats on top of the molten steel and is relatively easy to remove. Additionally, the molten slag protects the molten steel from direct contact with the atmosphere. Slag formation involves adding steelmaking additives, such as calcium fluoride or calcium oxide, during the steelmaking process to form slag.

[0003] During steelmaking, slag-forming materials need to be added to the converter. Currently, the slag-forming material adding device can only add materials at fixed points or in strips. The added slag-forming materials are not evenly distributed in the furnace, which will affect the slag-forming effect of steelmaking and is not conducive to steelmaking work.

[0004] Based on the above, it is necessary to improve the existing feeding equipment used for adding additives into the converter in order to achieve more uniform and planar addition of additives. Utility Model Content

[0005] To address the above issues and overcome the shortcomings of existing technologies, this invention proposes an additive dispensing device. This device achieves uniform and equal dispensing of powdered or granular additives within a specific area when adding them to the furnace. This invention, to a certain extent, overcomes the limitations of existing technologies that only allow for sequential or uneven dispensing, thereby optimizing the slag-forming effect in steelmaking.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides an admixture dispensing device, comprising:

[0008] The support frame provides installation space and installation structure for other components of the equipment, including a first mounting part at the top and a second mounting part located below the first mounting part;

[0009] A weighing sensor, wherein the weighing sensor is mounted on the first mounting part of the support frame;

[0010] A storage cylinder is mounted on the weighing sensor; the storage cylinder includes a storage section for storing additives, a feeding section for allowing additives to pass through is provided at the lower part of the storage section, and a first control section for controlling the opening and closing of the channel is provided above the feeding section;

[0011] The funnel has a second control section in the middle for dividing the funnel into two parts or connecting them into one part; below the second control section, the funnel has a plurality of release holes that are spaced apart circumferentially for the excipient to leak out.

[0012] Furthermore, the funnel also includes a first dispersing portion in the shape of a cylindrical tube and a second dispersing portion in the shape of a frustum, wherein the lower end diameter of the second dispersing portion is not greater than 50% of the upper end diameter.

[0013] Furthermore, the release holes on the funnel are spaced at equal central angles along the circumferential direction.

[0014] Furthermore, the release holes are evenly distributed at intervals along the height direction of the funnel.

[0015] Furthermore, the release holes are spaced apart along the height direction of the funnel, and the distance between every two adjacent rows of release holes gradually decreases from top to bottom.

[0016] Furthermore, the spacing between the release holes in adjacent rows decreases in the height direction by no more than 80% per row.

[0017] Furthermore, the diameter of the release hole gradually decreases from top to bottom along the height direction of the funnel.

[0018] Furthermore, the diameter of the release holes in the same row is the same; the diameter of the release holes in adjacent rows decreases by no more than 80% per row.

[0019] This utility model has at least the following advantages or beneficial effects:

[0020] (1) This utility model provides a device for adding admixtures into a steelmaking furnace. The funnel for directly adding admixtures in the device is divided into a first dispersion section and a second dispersion section, and the first dispersion section and the second dispersion section are provided with release holes for the admixtures to flow out. The diameter of the release holes and the spacing between them decrease from top to bottom, thereby directly controlling the flow rate of admixtures flowing out at different heights, so as to achieve the effect of uniform distribution and equal amount addition.

[0021] (2) This utility model provides a device for adding additives into a steelmaking furnace. The device is also equipped with a first control unit that can monitor the weight change of the additives inside and outside the storage cylinder and then feed it back to control the flow of the additives out of the storage cylinder, thereby realizing automated control of the amount of additives added. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of an admixture dispensing device;

[0024] Figure 2 This is a schematic diagram of a storage cylinder;

[0025] Figure 3 A schematic diagram of a funnel;

[0026] Figure label:

[0027] 1-Support frame; 11-First mounting part; 12-Second mounting part;

[0028] 2-Weighing sensor;

[0029] 3-Storage cylinder; 31-Storage section; 32-Feeding section; 33-First control section;

[0030] 4-Function funnel; 41-First dispersion section; 42-Second dispersion section; 43-Second control section; 44-Release hole. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship of the various parts or elements of this utility model and do not specifically refer to any part or element in this utility model. They should not be construed as limiting this utility model.

[0035] In this utility model, terms such as "fixed", "connected", and "linked" should be interpreted broadly, indicating that it can be a fixed connection, an integral connection, or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. For relevant scientific researchers or technicians in this field, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.

[0036] The embodiments of this utility model will be described in detail below.

[0037] An embodiment of this utility model discloses an admixture dispensing device, the details of which are as follows:

[0038] Figure 1 This is a schematic diagram of the overall structure of the admixture dispensing device in this embodiment. As can be seen from the diagram, the device mainly includes the following three parts:

[0039] The support frame 1 includes a first mounting part 11 and a second mounting part 12 that provide mounting space and mounting structure for other components, wherein the first mounting part 11 is located above the second mounting part 12;

[0040] Weighing sensor 2, which is disposed on the first mounting part 11;

[0041] The storage cylinder 3 is used to store additives, which can flow out from the feeding section 32 below the storage cylinder 3. The storage cylinder 3 is mounted on the weighing sensor 2, so that the weighing sensor 2 can monitor the weight change of the additives inside the storage cylinder 3. This weight change information can be used to control the total weight of additives added into the steelmaking furnace.

[0042] The funnel 4 is disposed on the second mounting part 12 and located below the feeding part 32 of the storage cylinder 3. In this way, the additive flowing out of the storage cylinder 3 will flow into the funnel 4 and then be re-added through the funnel 4.

[0043] Figure 2This is a schematic diagram of the storage cylinder 3. As can be seen from the diagram, the storage section 31 of the storage cylinder 3, used for storing additives, is a hollow cylinder with a bottom. A feeding section 32 for the additives to flow out is provided at the bottom. A first control section 33 is also provided on the feeding section 32. This first control section 33 is a remotely controllable electromagnetic valve that can directly control the opening or closing of the feeding section 32, thereby starting or stopping the feeding process.

[0044] Figure 3 This is a schematic diagram of the funnel 4. As shown in the diagram, the funnel 4 includes: a first dispersing portion 41, which is cylindrical with the same diameter at both ends, and a second dispersing portion 42, which is frustum-shaped with a larger diameter at the upper end than at the lower end. The lower end of the first dispersing portion 41 is fixedly connected to the upper end of the second dispersing portion 42; the upper end of the first dispersing portion 41 is open, and the lower end of the second dispersing portion 42 is closed. Furthermore, the diameter of the lower end of the second dispersing portion 42 is no more than 50% of its upper diameter. Thus, the first dispersing portion 41 and the second dispersing portion 42 form a funnel 4 with an open upper end and a sealed lower end.

[0045] In addition, a second control unit 43 is provided in the middle of the first dispersion section 41 of the funnel 4. This second control unit 43 is a remotely controllable solenoid valve that can directly control the connection and closure of the inside of the funnel 4. When the second control unit 43 is closed, the admixture can be temporarily stored in the funnel 4; when the second control unit 43 is opened, the admixture above the second control unit 43 can fall into the lower part of the first dispersion section 41 and the second dispersion section 42 of the funnel 4.

[0046] Furthermore, below the second control unit 43, both the first dispersion unit 41 and the second dispersion unit 42 have release holes 44 on their sidewalls. The release holes 44 allow the additive inside the funnel 4 to flow out. In the circumferential direction of the funnel 4, the release holes 44 are distributed at circumferential intervals, with adjacent central angles being the same. In the height direction of the funnel 4, the spacing between adjacent rows of release holes decreases progressively, with a reduction rate not exceeding 80%. Additionally, the diameters of the release holes 44 at the same height are equal; as the height decreases, the diameter of the release holes 44 decreases, with the diameter of each row of release holes 44 not exceeding 80% of the diameter of the adjacent row of release holes 44.

[0047] In this process, after the admixture flows out of the release orifice 44, the amount flowing out of each orifice 44 is essentially equal. This is because: firstly, during the dynamic process from the start of the admixture's flow to its complete flow, the cross-sectional height of the admixture within the funnel 4 continuously decreases, resulting in a shorter flow time for the upper-positioned orifice 44 compared to the lower-positioned one; secondly, at a given moment during admixture flow, the diameter of the upper-positioned orifice 44 is larger than that of the lower-positioned one, leading to a greater flow rate. Combining these two factors ensures that the volume of admixture passing through each orifice 44 is essentially equal.

[0048] Furthermore, because the release holes 44 are spaced apart circumferentially around the funnel 4, the admixture can be distributed throughout the entire circumference of the funnel 4. Also, because the release holes 44 are spaced apart vertically, the admixture traveling a greater distance from a higher release hole 44 than from a lower one, thus allowing for a radial distribution of the admixture. Combining these two aspects, the admixture can radiate outwards in a circular pattern from the funnel 4 as the center. This allows for planar admixture dispensing.

[0049] When using the admixture dispensing device of this embodiment, the following steps are preferred:

[0050] Step 1: Add sufficient additive to storage cylinder 3; ensure that the first control unit 33 and the second control unit 43 are in the closed state;

[0051] Step 2: Open the first control unit 33 to allow the admixture to flow from the storage cylinder 3 to the funnel 4; at the same time, the weighing sensor 2 monitors the weight change of the admixture in the storage cylinder 3. When the weight change reaches the preset weight threshold, the first control unit 33 is closed.

[0052] Step 3: Open the second control unit 43 to allow the additive in the funnel 4 to flow out from the release hole.

[0053] Step 4: Repeat steps 2 and 3 until the admixture is added.

[0054] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An admixture dosing apparatus characterized by, include: The support frame (1) provides installation space and installation structure for other components of the equipment, including a first mounting part (11) above and a second mounting part (12) located below the first mounting part. Weighing sensor (2), the weighing sensor (2) is mounted on the first mounting part (11) of the support frame (1); Storage cylinder (3), the storage cylinder (3) is disposed on the weighing sensor (2); the storage cylinder (3) includes a storage part (31) for storing additives, the lower part of the storage part (31) is provided with a feeding part (32) for allowing the additives to pass through, and the upper part of the feeding part (32) is provided with a first control part (33) that can control the opening and closing of the channel. The funnel (4) is disposed on the second mounting part (12) and located below the feeding part (32). The middle part of the funnel (4) is provided with a second control part (43) for dividing the funnel (4) into two parts or connecting them into one part. Below the second control part (43), the side wall of the funnel (4) is provided with a plurality of circumferentially spaced release holes (44) for the release of additives. The release holes (44) are distributed in multiple rows in the height direction of the funnel (4).

2. The admixture dosing apparatus of claim 1, wherein The funnel (4) further includes a first dispersion part (41) in the shape of a cylindrical tube and a second dispersion part (42) in the shape of a frustum, wherein the lower end diameter of the second dispersion part (42) is not greater than 50% of the upper end diameter.

3. The admixture dispensing device according to claim 1 or 2, characterized in that, The release holes (44) on the funnel (4) are circumferentially spaced at equal central angles.

4. The admixture dosing device according to claim 1 or 2, characterized in that The release holes (44) are evenly distributed at intervals along the height direction of the funnel (4).

5. The admixture dosing device according to claim 1 or 2, characterized in that The release holes (44) are spaced apart along the height direction of the funnel (4), and the distance between two adjacent rows of release holes (44) gradually decreases from top to bottom.

6. The admixture dosing apparatus of claim 5, wherein, The spacing of the release holes (44) in adjacent rows decreases in the height direction by no more than 80% per row.

7. The admixture dosing device according to claim 1 or 2, characterized in that The diameter of the release hole (44) gradually decreases from top to bottom along the height direction of the funnel (4).

8. The admixture dispensing device according to claim 7, characterized in that, The diameter of the release holes (44) in the same row is the same; the diameter of the release holes (44) in adjacent rows decreases by no more than 80% per row.

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