Buffer device for segregation distribution of sintering mixture and sintering machine
Through the sintered mixture segregation cloth buffer device set up in the sintering machine, the problem of large-sized particles rolling off during sintering of ultrafine enhanced vanadium titanium concentrate is solved, the sintering performance and breathability of the lower layer mixture are improved, and the yield is improved.
Patent Information
- Application Number
- CN202420685636.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-03
AI Technical Summary
When sintering is performed using ultrafine enhanced vanadium titanium concentrate, the large-grained particles generated in the sintered mixture lead to excessive permeability of the lower mixture and excessive heat transfer speed, making it difficult to achieve mass transfer and melt reaction, resulting in poor quality of the lower sintered ore and a large increase in the amount of ore return.
A buffer device for segregation cloth of sintered mixture is designed, and is arranged in the middle layer of the multi-layer loosening rod of the loosening machine of the sintering machine. The depth of the mixture is 5-10mm to alleviate the rolling and falling of large particles, and disperse and mix into the middle and upper layer sintered mixture.
Through the design of the buffer device, the rolling and falling of large particles is effectively reduced, the heat transfer, mass transfer and melting reaction of the lower layer mixture is improved, the sintering performance and yield are improved, and the overall breathability of the mixture is improved.
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Figure CN222688810U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of blast furnace ironmaking and sintering, and in particular to a buffer device for segregation distribution of sintering mixture and a sintering machine. Background Art
[0002] After using ultrafine upgraded vanadium-titanium concentrate, larger-sized mixture particles are produced in the sintering mixture. When the sintering machine mixture is segregated and distributed, as the mixture particles roll, the large particles of large-sized mixture naturally roll down to the lower layer of the sintering machine trolley distribution layer, resulting in the lower layer of sintering mixture being extremely air-permeable and the heat transfer rate being too fast, making it difficult to achieve mass transfer and melting reaction, making it difficult for the lower layer of sintering mixture to form consolidated sintered ore, resulting in poor quality of the lower layer of sintered ore and a significant increase in the amount of returned ore, affecting the use and sintering of the ultrafine upgraded vanadium-titanium concentrate.
[0003] Based on this, there is an urgent need for a buffer device for sintering mixed material segregation distribution and a sintering machine to solve the above problems. Utility Model Content
[0004] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.
[0005] In view of the shortcomings of the prior art, the embodiments of the present disclosure provide a buffer device and a sintering machine for segregation distribution of sintering mixtures, which reduce the proportion of large particles of large-sized mixtures rolling down to the lower layer, and allow the large-sized mixtures to be dispersed, mixed and distributed into the middle and upper layers of sintering mixtures.
[0006] According to a first aspect, an embodiment of the present disclosure provides a buffer device for segregating and distributing sintering mixtures, which is used in a sintering machine. The sintering machine includes a loosener, and the buffer device is arranged in the middle layer of the multi-layer loosening rods of the loosener and is inserted into the mixture to a depth of 5-10 mm.
[0007] In the preferred technical solution of the buffer device for segregation distribution of the sintered mixture, the buffer device is arranged on the upper part of the lowest layer of the multi-layer loosening rods of the loosening device.
[0008] In the preferred technical solution of the buffer device for segregating the sintered mixture, the buffer device is made of a transport tape.
[0009] In the preferred technical solution of the buffer device for segregation distribution of the sintered mixture, the thickness of the buffer device is 5-10 mm.
[0010] In the preferred technical solution of the buffer device for segregating and distributing sintered mixed materials, the width of the buffer device is equal to the width of the loosening device.
[0011] In the preferred technical solution of the buffer device for segregating and distributing sintered mixed materials, the width of the buffer device is 50-100 mm narrower than the width of the loosening device.
[0012] In the preferred technical solution of the buffer device for segregating and distributing sintered mixed materials, the width of the buffer device is 60-80 mm narrower than the width of the loosening device.
[0013] In the preferred technical solution of the buffer device for segregation distribution of the sintering mixture, the buffer device is horizontally inserted into the mixture to a depth of 5-10 mm when the sintering machine mixture forms a slope.
[0014] In the preferred technical solution of the buffer device for segregating the sintered mixture, the particle diameter of the sintered mixture is greater than 5 mm.
[0015] According to a second aspect, an embodiment of the present disclosure provides a sintering machine, which includes the aforementioned buffer device for segregating and distributing sintering mixture.
[0016] The buffer device for segregation distribution of sintered mixed materials provided in the embodiments of the present disclosure can achieve the following technical effects:
[0017] The buffer device is arranged in the middle layer of the multi-layer loosening rod of the loosening device and is inserted into the mixture to a depth of 5-10mm, which reduces the proportion of large particles of large-size mixture rolling to the lower layer, and makes the large-size mixture dispersed and mixed into the middle and upper layers of sintering mixture.
[0018] This device can reduce the proportion of large particles of large-size mixture rolling down to the lower layer, which is beneficial to improving the heat transfer, mass transfer, melting reaction and sintering performance of the lower layer mixture, improving its quality and increasing output.
[0019] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:
[0021] Figure 1 A side schematic diagram of a material loosener and a buffer device provided by the utility model is shown;
[0022] Figure 2 A three-dimensional schematic diagram of a material loosening device provided by the utility model is shown;
[0023] Figure 3 A schematic plan view of a buffer device provided by the utility model is shown.
[0024] Reference numerals:
[0025] 1. material loosening device; 11. material loosening rod; 111. first material loosening rod; 112. second material loosening rod; 113. third material loosening rod; 114. fourth material loosening rod;
[0026] 2. Buffer device. DETAILED DESCRIPTION
[0027] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.
[0028] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.
[0029] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0030] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0031] Unless otherwise stated, the term "plurality" means two or more.
[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
[0033] Figure 1 A side schematic diagram of a material loosener and a buffer device provided by the utility model is shown. Figure 2 The utility model shows a three-dimensional schematic diagram of the material loosening device provided by the utility model. Figure 3 A schematic plan view of a buffer device provided by the utility model is shown.
[0034] like Figures 1 to 3 As shown, an embodiment of the present disclosure provides a buffer device for segregating and distributing sintering mixtures, which is used in a sintering machine. The sintering machine includes a loosener 1, and a buffer device 2 is arranged in the middle layer of the multi-layer loosening rods 11 of the loosener 1 and is inserted into the mixture to a depth of 5-10 mm.
[0035] Specifically, the sintering machine has a loosening device 1. The loosening device 1 includes multiple layers of loosening rods 11, for example, a first loosening rod 111, a second loosening rod 112, a third loosening rod 113 and a fourth loosening rod 114. The first loosening rod 111, the second loosening rod 112, the third loosening rod 113 and the fourth loosening rod 114 are all located in different layers, and each layer includes a plurality of the above-mentioned loosening rods. The length of the first loosening rod 111 can be L1. The length of the second loosening rod 112 can be L2. The length of the third loosening rod 113 can be L3. The length of the fourth loosening rod 114 can be L4. The buffer device 2 is inserted into the mixed material to a depth of 5-10 mm. The height of the material layer is h, and h>10 mm. The buffer device 2 can reduce the proportion of large particles of large-sized mixture rolling down to the lower layer, so that the large-sized mixture is dispersed and mixed into the middle and upper layers of the sintering mixture, which is beneficial to improving the heat transfer, mass transfer, melting reaction of the lower layer mixture and improving the sintering performance of the lower layer mixture. At the same time, it can appropriately improve the air permeability of the mixture in the middle and upper layers of the sintering mixture, improve the air permeability of the overall material layer of the sintered ore mixture, reduce the deviation of the material layer permeability, improve the balance, and appropriately make up for the original defect of poor sintering product quality due to the transition segregation of large-sized mixture.
[0036] like Figure 1 to Figure 2 As shown, in the preferred technical solution of the present application, the buffer device 2 is arranged on the upper part of the lowest layer of the multi-layer loosening rods 11 of the loosening device 2.
[0037] Specifically, in the case of multi-layer loosening rods, depending on the difference in the particle size of the mixed material and the air permeability of the sintered material layer, the buffer device 2 is arranged on a layer of loosening rods 11 of the loosening device 1. The multi-layer loosening rods 11 can preferably be 4 layers, 5 layers, etc.
[0038] like Figure 1 As shown, in the preferred technical solution of the present application, the buffer device 2 is made of a transport tape and has a thickness of 5-10 mm.
[0039] Specifically, the buffer device 2 can be arranged in such a manner that it has a certain load-bearing capacity. In addition, the buffer device 2 can also have other thicknesses, such as 10-20 mm, as long as it can play a corresponding load-bearing effect and disperse and mix the large-particle mixture into the middle and upper layers of the sintering mixture.
[0040] like Figure 1 As shown, in the preferred technical solution of the present application, the width of the buffer device 2 is equal to the width of the material loosener 1.
[0041] Specifically, when the width of the buffer device 2 is equal to the width of the material loosener 1, it can effectively prevent the mixed material with large particles from falling out and disperse it.
[0042] like Figure 1 As shown, in the preferred technical solution of the present application, the width of the buffer device 2 is 50-100 mm narrower than the width of the material loosener 1. Preferably, the width of the buffer device 2 is 60-80 mm narrower than the width of the material loosener 1.
[0043] Specifically, when the width of the buffer device 2 is 50-100 mm narrower than the width of the loosening device 1, it can also prevent large-sized mixed materials from falling out and disperse. The same is also applicable to the case where the width of the buffer device 2 is 60-80 mm narrower than the width of the loosening device 1. In addition, other situations are also possible as long as they can also prevent large-sized mixed materials from falling out and disperse.
[0044] like Figure 1 As shown, in the preferred technical solution of the present application, the buffer device 2 is horizontally inserted into the mixture to a depth of 5-10 mm when the sintering machine mixture forms a slope.
[0045] Specifically, the depth of the inserted mixture is 5-10 mm, which is conducive to the large-particle sintering mixture on the slope surface rolling down to the buffer device 2, thereby preventing most of the large-particle mixture from rolling down to the lower part of the sintering material layer.
[0046] like Figure 1 As shown, in the preferred technical solution of the present application, the particle diameter of the mixture is greater than 5 mm.
[0047] Specifically, the buffer device 2 is suitable for mixed materials with large particle sizes, preferably, the mixed materials have a diameter of 5-10 mm.
[0048] An embodiment of the present disclosure provides a sintering machine, which includes the aforementioned buffer device for segregating and distributing sintering mixed materials.
[0049] The specific comparative tests are as follows:
[0050] According to the design idea of this application, it was applied in the on-site sintering machine. After the laboratory exploratory study used ultrafine upgraded vanadium titanium concentrate, the production quality level of sintered ore decreased. During the on-site exploratory verification test, a buffer distributor (plate) was arranged on the upper row (first row) loosening rod of the sintering machine loosener, inserted 5-8mm into the material, and the production quality level of the sintered ore after using ultrafine upgraded vanadium titanium concentrate was equivalent to the original capacity level of using coarse-grained vanadium titanium concentrate.
[0051] 1. Comparative laboratory experiment of coarse and fine particle size vanadium-titanium concentrate
[0052] Table 1 Sintering cup experimental batching scheme percentage (%)
[0053]
[0054] Table 2 Technical and economic indicators of sintered ore
[0055]
[0056]
[0057] Table 3 Exploration test plan for adding Anning ore to one sintering machine / %
[0058]
[0059] Table 4 Statistical results of operating parameters and hourly output at each stage
[0060]
[0061] Note: Material adjustment - use less loose material in the lower and middle layers or install a rubber buffer plate on the bottom loosener to reduce the amount of large-particle mixture in the lower layer.
[0062] The buffer device 2 is arranged in the middle layer of the multi-layer loosening rod 11 of the loosening device 1 and is inserted into the mixture to a depth of 5-10mm, which reduces the proportion of large particles of large-sized mixture rolling down to the lower layer, and makes the large-sized mixture dispersed and mixed into the middle and upper layers of the sintering mixture.
[0063] This device can reduce the proportion of large particles of large-size mixture rolling down to the lower layer, which is beneficial to improving the heat transfer, mass transfer, melting reaction and sintering performance of the lower layer mixture, improving its quality and increasing output.
[0064] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A buffer device for segregation distribution of sintering mixture, used in a sintering machine, characterized in that: The sintering machine includes a loosener, and the buffer device is arranged in the middle layer of the multi-layer loosening rods of the loosener and is inserted into the mixture to a depth of 5-10mm. The buffer device is made of a transport tape; the thickness of the buffer device is 5-10mm; when the sintering machine mixture forms a slope, the buffer device is horizontally inserted into the mixture to a depth of 5-10mm.
2. The buffer device for sintering mixture segregation distribution according to claim 1, characterized in that: The buffer device is arranged on the upper part of the lowest layer of the multi-layer loosening rods of the loosening device.
3. The buffer device for sintering mixture segregation distribution according to claim 2, characterized in that: The width of the buffer device is equal to the width of the material loosener.
4. The buffer device for sintering mixture segregation distribution according to claim 2, characterized in that: The width of the buffer device is 50-100 mm narrower than the width of the material loosener.
5. The buffer device for sintering mixture segregation distribution according to claim 2, characterized in that: The width of the buffer device is 60-80 mm narrower than the width of the material loosener.
6. The buffer device for sintering mixture segregation distribution according to any one of claims 1 to 5, characterized in that: The particle diameter of the mixed material is greater than 5 mm.
7. A sintering machine, characterized in that: include: A buffer device for segregating sintered mix materials as claimed in any one of claims 1 to 6.