Integrated liner and silo for pellet production
By designing an integrated liner in the pellet production silo, the liner is distributed around the entire circle, eliminating the gaps at the junctions. This solves the problem of material sticking to the silo, achieves stability and continuity in material feeding, and prevents the silo from cracking.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHOUGANG JINGTANG IRON & STEEL CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-26
AI Technical Summary
In traditional pellet production, there are installation gaps at the junction of the vertical and conical sections of the silo, which makes the material sticky, affecting the stability and continuity of feeding. External rapping devices can also cause the silo body to crack.
The integrated liner design includes a first arc plate, a second arc plate, and a transition plate, which are distributed around the inside of the vertical and conical sections of the silo. It is fixed by studs and nuts to eliminate installation gaps at the junctions and increase material flowability.
It solved the problem of material sticking at the junction of the silos, ensuring the stability and continuity of material feeding, preventing silo cracking, and improving material flowability.
Smart Images
Figure CN224278410U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pellet production equipment technology, and in particular to an integrated liner and a hopper for pellet production. Background Technology
[0002] In the production of iron ore pellets, because iron ore powder contains moisture and binders need to be added, polyurethane lining plates need to be installed inside the silo to protect the silo body.
[0003] Traditional liner plates use a split design at the junction of the vertical and conical sections of the hopper, resulting in installation gaps. During production, due to the impact and viscosity of the material, material sticking is prone to occur at this junction, thus affecting the material discharge from the hopper.
[0004] A vibration device is usually added to the outside of the silo to solve the defect through external vibration, but this can easily cause the silo body to crack and does not significantly improve the adhesion of materials. Utility Model Content
[0005] To address the aforementioned issues, this application provides an integrated liner and a hopper for pellet production.
[0006] This application provides an integrated liner, comprising multiple liner segments arranged sequentially along a circumferential direction. Each liner segment includes a first arc plate portion, a second arc plate portion, and a transition plate portion. The first arc plate portion is used to be installed on the inner side of the vertical section of the hopper, and the second arc plate portion is used to be installed on the inner side of the conical section of the hopper adjacent to the vertical section. The angle between the second arc plate portion and the first arc plate portion is the angle formed by the inner sides of the vertical section and the conical section. The transition plate portion smoothly transitions between one axial end of the first arc plate portion and one axial end of the second arc plate portion.
[0007] In some embodiments, the first arc plate portion and the second arc plate portion are respectively provided with mounting holes for studs to pass through. The studs are used to fix the first arc plate portion to the inside of the vertical section or the inner side of the conical section. The nut screwed to the stud presses the first arc plate portion into the vertical section or presses the second arc plate portion into the conical section.
[0008] In some implementations, the nut is a countersunk nut.
[0009] In some embodiments, the countersunk nut has a frustum-shaped periphery, and the mounting hole has a frustum-shaped hole wall that mates with the periphery of the countersunk nut.
[0010] In some embodiments, the first arc plate portion and the second arc plate portion are respectively provided with four mounting holes distributed at the four corners of a rectangle.
[0011] In some implementations, the unfolded length of the liner is controlled between 0.8m and 1.5m.
[0012] In some embodiments, the axial length of the first arc plate portion is equal to the axial length of the second arc plate portion.
[0013] In some embodiments, the arc length of the first arc plate portion and the second arc plate portion is controlled between 0.2m and 0.5m.
[0014] In some embodiments, the first arc plate portion, the transition plate portion, and the second arc plate portion are integrally formed.
[0015] A hopper for pellet production includes a vertical section, a conical section, and the aforementioned integrated liner. The conical section is spaced apart from the vertical section, and multiple liner plates of the integrated liner are distributed in a circular pattern and connected to the vertical section and the conical section.
[0016] The beneficial effects of this application are as follows: It provides an integrated liner plate, which is formed by combining multiple separate liner plates. Specifically, it is used between the vertical section and the conical section of the silo. The multiple liner plates are distributed circumferentially around the silo and form a complete circle. The first arc plate of the liner plate is installed on the inner side of the vertical section of the silo, and the second arc plate of the liner plate is installed on the inner side of the conical section of the silo. The transition plate of the liner plate blocks the installation gap at the junction of the vertical section and the conical section. Through the transition plate of the multiple liner plates distributed in a complete circle, the installation gap at the junction of the vertical section and the conical section is eliminated, the material flow at this location is increased, the problem of material sticking that existed at this location is solved, and the stability and continuity of material discharge from the silo are ensured. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model.
[0018] Figure 1 A schematic diagram illustrating the application of the integrated liner provided in this application in a silo;
[0019] Figure 2 for Figure 1 Enlarged view of a portion involving the integrated liner;
[0020] Figure 3 This is a schematic diagram showing the unfolded shape of the integrated liner.
[0021] Figure 4 A schematic diagram showing the installation holes for the separate liner plates;
[0022] Figure 5 This is a schematic diagram of the first arc plate section installed on the vertical section of the silo.
[0023] Attached diagram labels: 1-hopper, 10-vertical section, 20-conical section, 30-liner plate, y-angle, 31-first arc plate, 32-second arc plate, 33-transition plate, 34-mounting hole, 35-stud, 36-nut. Detailed Implementation
[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0025] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0026] This application provides an integrated liner plate, which is used in silo 1, specifically silo 1 of the pelletizing production equipment. Please refer to [reference needed]. Figure 1 The hopper 1 includes a vertical section 10 and a conical section 20 adjacent to the vertical section 10. In the use or installation state, the vertical section 10 is above the conical section 20. Further explanation of the hopper 1 in the pellet production equipment is provided here: the top of the vertical section 10 is a cover plate structure with a manhole for personnel passage and maintenance operations. For example, when maintaining the liner, the liner needs to be inserted into the hopper 1 through the manhole. Due to the small size of the manhole, the dimensions of a single liner are also relatively small.
[0027] The integrated liner consists of multiple separate liner sections 30, in conjunction with reference. Figure 1 and Figure 2 It shows the installation position of the liner plate components 30 in the hopper 1. Multiple liner plate components 30 are distributed sequentially along the circumference of the hopper 1, and the overall distribution is in a complete circle. Figure 3 This shows the unfolded diagram of the integrated liner.
[0028] Please refer to Figure 2The liner section 30 includes a first arc plate portion 31, a second arc plate portion 32, and a transition plate portion 33. The first arc plate portion 31 is installed on the inner side of the vertical section 10 of the hopper 1. In the installed state, the first arc plate portion 31 is in close contact with the inner side of the vertical section 10. The vertical section 10 is generally cylindrical, so the first arc plate portion 31 is arc-shaped, having three directions: axial, arc, and thickness. The second arc plate portion 32 is installed on the inner side of the conical section 20 adjacent to the vertical section 10 of the hopper 1. The second arc plate portion 32 also has three directions: axial, arc, and thickness. The second arc plate portion 32 and the first arc plate portion 31 form an included angle γ. Figure 2 The included angle y is shown, which is equal to the angle formed by the vertical section 10 and the inner side of the conical section 20 of the hopper 1.
[0029] exist Figure 2 In the middle, the transition plate part 33 is connected between the first arc plate part 31 and the second arc plate part 32. One end of the transition plate part 33 is connected to the axial end of the first arc plate part 31, and the other end of the transition plate part 33 is connected to the axial end of the second arc plate part 32. The transition plate part 33 of the liner body 30 covers the installation gap at the junction of the vertical section 10 and the conical section 20. Through the transition plate parts 33 of multiple liners distributed in a circle, the installation gap at the junction of the vertical section 10 and the conical section 20 is eliminated, the material flowability at this position is increased, and the smooth design of the transition plate part 33 further improves the material flowability, solves the problem of material sticking that existed at this position, and ensures the stability and continuity of material discharge from the hopper 1.
[0030] In some implementation methods, please refer to Figure 4 The first arc plate portion 31 and the second arc plate portion 32 are respectively provided with mounting holes 34, which are used for inserting studs 35. Please refer to the reference. Figure 4 and Figure 5 The stud 35, which passes through the mounting hole 34 of the first arc plate portion 31, is fixed to the inner side of the vertical section 10. The stud 35, which passes through the mounting hole 34 of the second arc plate portion 32, is fixed to the inner side of the conical section 20. The stud 35 can be fixed by welding to a preset position on the inner side of the vertical section 10 and the inner side of the conical section 20. The nut 36 is threaded to the stud 35. In the installed state, the nut 36 is also in the mounting hole 34. The first arc plate portion 31 is pressed into the vertical section 10 by the corresponding nut 36, and the second arc plate portion 32 is pressed into the conical section 20 by the corresponding nut 36, thereby realizing the installation of the first arc plate portion 31 and the second arc plate portion 32 in sequence.
[0031] In some implementation methods, please refer to Figure 5Nut 36 is a countersunk nut 36. When the integrated liner is in the installation state, the countersunk nut 36 is completely located in the mounting hole 34, which improves the material flow at the junction of the vertical section 10 and the conical section 20.
[0032] Please refer to Figure 5 In some embodiments, based on the countersunk nut 36, the countersunk nut 36 is further designed with a frustum shape on its periphery. The mounting hole 34 is provided with a frustum-shaped hole wall. The frustum-shaped hole wall cooperates with the frustum-shaped periphery of the countersunk nut 36, so that the countersunk nut 36 can better press the liner plate 30 into the inner side of the hopper 1.
[0033] In some implementation methods, please refer to Figure 4 The first arc plate portion 31 and the second arc plate portion 32 are respectively provided with four mounting holes 34 distributed at the four corners of a rectangle, so that the liner plate split 30 has sufficient installation stability.
[0034] In some embodiments, the unfolded length of the liner plate segment 30 is controlled between 0.8m and 1.5m. The unfolded length of the liner plate segment 30 refers to the sum of the axial length of the first arc plate portion 31, the axial length of the second arc plate portion 32, and the arc length of the transition plate portion 33 formed by the smooth transition design. Its beneficial effect is that it ensures sufficient anti-sticking capability while facilitating installation.
[0035] In some embodiments, the axial length of the first arc plate portion 31 is equal to the axial length of the second arc plate portion 32.
[0036] In some embodiments, the arc length of the first arc plate portion 31 and the second arc plate portion 32 is controlled between 0.2m and 0.5m.
[0037] In some embodiments, the first arc plate portion 31, the transition plate portion 33, and the second arc plate portion 32 are integrally formed to improve the structural strength of the liner plate split 30.
[0038] In some implementations, the integrated liner is made of ultra-high molecular weight polyethylene.
[0039] This application also provides a hopper 1 for pellet production; please refer to the reference. Figures 1 to 3 The hopper 1 includes a vertical section 10, a conical section 20 and the aforementioned integrated liner. The conical section 20 is spaced apart from the vertical section 10. The multiple liner segments 30 of the integrated liner are distributed in a circle and connected to the vertical section 10 and the conical section 20.
[0040] Based on the above, this application briefly describes the dimensional design process of the integrated liner plate, as follows: First, determine the unfolded length of the liner plate segment 30; based on the included angle between the vertical segment 10 and the conical segment 20 of the hopper 1 and the diameter of the hopper 1, determine the included angle of the fan-shaped surface after the entire integrated liner plate is unfolded; the unfolded shape of the entire integrated liner plate is as follows: Figure 3 As shown, determine the upper and lower arc lengths of the corresponding fan-shaped surface after the entire integrated liner plate is unfolded; determine the bending angle y of the liner plate split 30 based on the included angle between the vertical segment 10 and the conical segment 20.
[0041] Based on the above, this section provides supplementary explanations on the key points of installing the integrated liner plate, specifically including: after the entire liner plate body is installed, install the traditional liner plate of the vertical section 10 of the hopper 1 layer by layer upwards, and install the traditional liner plate of the conical section 20 of the hopper 1 layer by layer downwards.
[0042] In this application, 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 being 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 being 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.
[0043] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.
[0044] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. An integrated liner plate, characterized in that, It includes multiple liner segments distributed sequentially along a circumferential direction, the liner segments comprising: The first arc plate is used to be installed on the inner side of the vertical section of the silo; The second arc plate portion is used to be installed on the inner side of the conical section adjacent to the vertical section of the hopper, and the angle between the second arc plate portion and the first arc plate portion is the angle formed by the inner side of the vertical section and the conical section; and The transition plate portion is smoothly connected between one axial end of the first arc plate portion and one axial end of the second arc plate portion.
2. The integrated liner as described in claim 1, characterized in that, The first arc plate portion and the second arc plate portion are respectively provided with mounting holes. The mounting holes are used for inserting studs. The studs are used to fix the inner side of the vertical section or the inner side of the conical section. The nuts screwed to the studs press the first arc plate portion into the vertical section or press the second arc plate portion into the conical section.
3. The integrated liner as described in claim 2, characterized in that, The nut is a countersunk nut.
4. The integrated liner as described in claim 3, characterized in that, The countersunk nut has a frustum-shaped periphery, and the mounting hole has a frustum-shaped hole wall that matches the periphery of the countersunk nut.
5. The integrated liner as described in claim 2, characterized in that, The first arc plate portion and the second arc plate portion are each provided with four mounting holes distributed at the four corners of a rectangle.
6. The integrated liner as described in claim 1, characterized in that, The unfolded length of the liner plate is controlled between 0.8m and 1.5m.
7. The integrated liner as described in claim 6, characterized in that, The axial length of the first arc plate portion is equal to the axial length of the second arc plate portion.
8. The integrated liner as described in claim 1, characterized in that, The arc lengths of the first and second arc plate portions are controlled between 0.2m and 0.5m.
9. The integrated liner as described in claim 1, characterized in that, The first arc plate portion, the transition plate portion, and the second arc plate portion are integrally formed.
10. A silo for pellet production, characterized in that, include: Vertical segment; The conical segment is spaced apart from the vertical segment; as well as The integrated liner as described in any one of claims 1-9, wherein a plurality of the liner portions are distributed in a circular pattern and connected to the vertical section and the conical section.