Loading bin for homogenizing casting powder finished product materials

Abstract

The utility model relates to the technical field of casting powder production equipment, in particular to a loading bin for homogenizing finished casting powder materials, which sequentially comprises a feed port at the top of the bin, a vertical charging barrel, a bin cone shrunk downwards and a discharge port from top to bottom. A pore plate is arranged between the vertical charging barrel and the storage bin cone; and a material guide cone is arranged below the feeding hole and is positioned at the upper end of the vertical charging barrel. By arranging the material guide cone, more large particles fed from the feeding port are distributed towards the edge of the vertical silo, less particles are distributed in the center of the vertical silo, materials are scattered through the pore plate so as to be reversely mixed at the discharging port, small-bag coarse and fine particles packaged in front and back of the same batch are uniformly scattered, and the problem that in the same batch, the particles are uniformly mixed in the middle of the vertical silo is solved. The technical problems that in the later period of the batch, the number of fine powder particles in the 10Kg small bags packaged firstly is small, the number of large particles is relatively large, and in the last period of the batch, the number of the fine powder in the 10Kg small bags packaged is obviously increased, and the number of the fine powder is too large are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of protective slag production equipment, in particular to a loading bin for homogenizing protective slag finished material. BACKGROUND

[0002] Continuous casting protective slag is a very key protective material for steel continuous casting, and plays a key role in whether the continuous casting is smooth or not. However, in the manufacturing process of the continuous casting protective slag, the particle size of the particles varies greatly, for example, there are particles with a particle size less than 0.2 mm, and there are particles with a particle size greater than 0.8 mm, or even 1.0 mm. The produced protective slag is usually first stored in a large silo, and then is packaged and loaded from the discharge port of the large silo. However, the silo to the outlet usually needs to be necked down. Therefore, in the process of the protective slag flowing down in the silo, the relatively large particles will be discharged first along the center line of the silo and the discharge port, and the relatively small particles will be left behind and finally fall along the downwardly tapered wall of the silo. That is, in the process of packaging and loading the relatively large amount of powder material with different particle sizes from the large silo into small bags, it is necessary to prevent the particle size of the material in the bags at the beginning of the batch from being greatly different from the particle size of the material in the bags at the end of the batch. This will inevitably result in that in one batch, the 10Kg small bags packed first contain less fine powder particles and relatively more large particles, while in the later period of the end of the batch, the 10Kg small bags packed contain significantly more fine powder particles. Too much fine powder can easily cause continuous casting slag and large slag strips, which brings great uncertainty to the stable operation of the continuous casting.

[0003] In view of this, the present utility model is proposed. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a loading bin for homogenizing protective slag finished material, so as to solve the technical problem of too much fine powder in the 10Kg small bags packed first in the same batch and relatively more large particles, and significantly more fine powder in the 10Kg small bags packed in the later period of the end of the batch.

[0005] In order to achieve the above-mentioned purpose of the utility model, the following technical scheme is adopted:

[0006] The utility model provides a loading bin for homogenizing protective slag finished material, which comprises a feeding port at the top of the loading bin, a vertical cylinder, a downwardly tapered silo cone and a discharge port from top to bottom.

[0007] A perforated plate is arranged between the vertical cylinder and the silo cone, and the perforated plate is used for material distribution.

[0008] A material guide cone is arranged below the feeding port and at the upper end of the vertical cylinder, and the material guide cone is used for guiding the large particles in the material to the edge of the vertical cylinder.

[0009] Furthermore, the material guide cone is in the shape of a cone that is smaller at the top and larger at the bottom. A support frame is provided below the material guide cone. One end of the support frame is connected to the material guide cone, and the other end is connected to the inner cavity of the vertical barrel.

[0010] Furthermore, a circular hole is provided at the top of the material guide cone, the circular hole is coaxially arranged with the feed port, and the diameter of the circular hole is 1 / 5 to 1 / 3 of the diameter of the bottom of the material guide cone.

[0011] Furthermore, the outer diameter of the orifice plate matches the inner diameter of the vertical barrel.

[0012] Furthermore, the inner diameter of the upper opening of the silo cone is larger than the outer diameter of the orifice plate, and the outer diameter of the orifice plate is larger than the inner diameter of the vertical barrel.

[0013] Furthermore, a straight section is provided at the upper opening of the silo cone, the inner diameter of the straight section matches the outer diameter of the orifice plate, and the height of the straight section matches the thickness of the orifice plate.

[0014] Furthermore, the charging silo also includes a purge device, which is located above the orifice plate and arranged along the tangent direction of the vertical inner wall of the barrel.

[0015] Furthermore, the purge device includes an air duct and a fan.

[0016] Furthermore, the apertures of the leakage holes on the orifice plate are consistent in size.

[0017] Furthermore, the diameter of the leakage holes on the orifice plate gradually increases from the center position of the orifice plate to a direction away from the center position of the orifice plate.

[0018] The utility model provides a loading silo for homogenized mold slag finished materials. By setting a guide cone, the larger particles fed from the feed port are distributed more toward the edge of the vertical silo, while the central part of the vertical silo is distributed relatively less. The materials are spread through a perforated plate so that they can be reversely mixed at the discharge port. This ensures that the coarse and fine particles of the small bags packaged before and after the same batch are evenly distributed. This ensures that the particle size of the small bags packaged at the end of the same batch of powdered materials is uniform with that of the small bags packaged at the beginning. This ensures that the overall physical properties of the mold slag batch materials are consistent, ensuring smooth continuous casting. This solves the technical problem that within the same batch, the first 10kg small bags packaged have fewer fine powder particles and relatively more large particles, while at the end of the batch, the 10kg small bags packaged have a significant increase in fine powder and excessive fine powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those of ordinary skill in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 A front view of a charging bin for a homogenized protective slag finished material provided in Embodiment 1 of the present application;

[0021] Figure 2 A cross-sectional structural view of a charging bin for a homogenized protective slag finished material provided in Embodiment 1 of the present application;

[0022] Figure 3 A front view of a charging bin for a homogenized protective slag finished material provided in Embodiment 2 of the present application;

[0023] Figure 4 A top view of a perforated plate provided in Embodiment 2 of the present application.

[0024] Figure legend: 11 - feeding port; 12 - vertical cylinder; 13 - bin cone; 14 - discharging port; 15 - packaging bag; 16 - perforated plate; 161 - leakage hole; 17 - guide cone; 171 - round hole; 18 - purging device; 181 - fan; 182 - air pipe; 19 - straight cylinder section; 20 - flange. DETAILED DESCRIPTION

[0025] Unless otherwise defined herein, scientific and technical terms used in connection with the present application shall have the meanings that are commonly understood by those of ordinary skill in the art. The meaning and scope of the terms should be clear; however, in the event of any latent ambiguity, definitions provided herein take precedence. In this application, the use of "or" means "and / or" unless otherwise stated. Moreover, the use of the term "including" as well as other forms such as "include", is not limiting.

[0026] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of the utility model, it is necessary to explain that the terms "proximal end", "distal end", "front end", "rear end", "inner", "outer" and the like indicate the position relationship based on the position relationship shown in the drawing, or the position relationship of the utility model product when it is usually placed, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a specific orientation, structure and operation, therefore, it cannot be understood as a limitation of the utility model. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] The terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or suspended, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0029] In the description of the utility model, it is also necessary to explain that, unless otherwise specified and limited, the terms "setting", "mounting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] The utility model provides a kind of loading bin of homogenization protective slag finished material, the loading bin includes feed inlet 11 of bin top from top to bottom in turn, vertical cylinder 12, bin cone 13 that shrinks downwards and discharge port 14;

[0031] The vertical cylinder 12 and the bin cone 13 are provided with a perforated plate 16, and the perforated plate 16 is used for material distribution;

[0032] The lower portion of the feed inlet 11 is provided with a guide cone 17, which is located at the upper end of the vertical cylinder 12, and the guide cone 17 is used to guide the large particles in the material to disperse to the edge of the vertical cylinder 12.

[0033] By setting the guide cone 17, the larger particles entering the feed port 11 are distributed more toward the edge of the vertical silo, while the central part of the vertical silo is distributed relatively less. The material is spread through the orifice plate 16 so that it can be reversely mixed at the discharge port 14. This ensures that the coarse and fine particles in the small bags packaged before and after the same batch are evenly distributed. This ensures that the particle size of the small bags packaged at the end of the same batch of powder materials is uniform with that of the small bags packaged at the beginning, so that the overall material properties of the mold slag batch are consistent, ensuring the smooth progress of continuous casting. This solves the technical problem that in the same batch, the first 10kg small bags packaged have fewer fine powder particles and relatively more large particles, while the fine powder in the 10kg small bags packaged at the end of the batch increases significantly, resulting in excessive fine powder.

[0034] In some specific embodiments, the guide cone 17 is in the shape of a cone that is small at the top and large at the bottom, so that large particles in the material entering from the feed port 11 are distributed along the guide cone 17 to the edge of the vertical barrel 12. A support frame is provided under the guide cone 17, one end of the support frame is connected to the guide cone 17, and the other end is connected to the inner cavity of the vertical barrel 12, which is used to support the guide cone 17 to maintain its stability.

[0035] The support frame may be composed of two or more support rods, or may be a support frame of other structures. The size and position of the support frame shall be such that the support frame can stably support the guide cone 17 without affecting the falling of the material.

[0036] In some specific embodiments, a circular hole 171 is provided at the top of the guide cone 17 . The circular hole 171 is coaxially arranged with the feed port 11 . The diameter of the circular hole 171 is 1 / 5 to 1 / 3 of the diameter of the bottom of the guide cone 17 .

[0037] A circular hole 171 is provided at the top of the guide cone 17 to facilitate viewing the conditions in the silo from the feed inlet 11 downward.

[0038] In some specific embodiments, the outer diameter of the orifice plate 16 matches the inner diameter of the vertical barrel 12 , so that all materials can pass through the orifice plate 16 for material distribution.

[0039] In some specific embodiments, the inner diameter of the upper opening of the silo cone 13 is larger than the outer diameter of the orifice plate 16 , and the outer diameter of the orifice plate 16 is larger than the inner diameter of the vertical barrel 12 .

[0040] The orifice plate 16 is placed on the silo cone 13, and the vertical barrel 12 is placed on the orifice plate 16, and the two are sealed together by the flange 20. The non-leakage hole of the edge of the orifice plate 16 is located outside the inner wall of the vertical barrel 12, which effectively reduces the obstruction of the edge of the orifice plate 16 on the material falling along the inner wall of the vertical barrel 12, so that the material along the inner wall of the vertical barrel 12 falls more smoothly than before, and the material particles are more evenly distributed.

[0041] In some specific embodiments, a straight section 19 is provided at the upper opening of the silo cone 13 , the inner diameter of the straight section 19 matches the outer diameter of the orifice plate 16 , and the height of the straight section 19 matches the thickness of the orifice plate 16 , so as to accommodate the orifice plate 16 .

[0042] In some specific embodiments, the loading silo further includes a purge device 18, which is located above the orifice plate 16 and arranged tangentially along the inner wall of the vertical barrel 12. This facilitates thorough removal of residual material on the orifice plate 16 at the end of packaging each batch of material to prevent mixing between batches.

[0043] In some specific embodiments, the purge device 18 includes an air duct 182 and a fan 181 .

[0044] In some specific embodiments, the leakage holes 161 on the orifice plate 16 have the same aperture size.

[0045] In some specific embodiments, the diameter of the leakage holes 161 on the orifice plate 16 gradually increases from the center of the orifice plate 16 to a direction away from the center of the orifice plate 16. This allows the material at the edge of the vertical barrel 12 to fall faster, thereby avoiding segregation of material particle size.

[0046] In some specific embodiments, a packaging bag 15 for receiving the material may be provided at the discharge port 14 , and a weighing and metering device may be provided between the packaging bag 15 and the discharge port 14 .

[0047] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] Example 1

[0049] Combine Figure 1 and Figure 2 To illustrate, a loading silo for homogenized protective slag finished materials includes a feed port 11 at the top of the silo, a vertical barrel 12, a downwardly contracted silo cone 13, a discharge port 14, and a packaging bag 15 for receiving the discharge from the discharge port. A perforated plate 16 for controlling the distribution of materials is arranged between the vertical barrel 12 and the downwardly contracted silo cone 13, and leakage holes 161 of uniform aperture are distributed on the perforated plate 16.

[0050] A material guide cone 17 is provided below the feed port 11 and above the vertical barrel 12. The material guide cone 17 is in the shape of a cone with a small top and a large bottom. The material guide cone 17 is fixedly connected to the inner cavity of the vertical barrel 12. The material guide cone is provided so that the larger particles entering the feed port are distributed more toward the edge of the vertical silo, while the central part of the vertical silo is distributed relatively less, so as to enable reverse mixing at the discharge port and uniform distribution of coarse and fine particles in the small bags packaged before and after the same batch; a purge device 18 is provided above the orifice plate 16 for spreading materials and along the tangent direction of the inner wall of the vertical barrel 12. The purge device includes an air duct 182 and a fan 181. The provision of this mechanism is conducive to thoroughly removing the residual materials on the orifice plate of the vertical silo at the end of packaging each batch of materials to avoid possible mixing between batches.

[0051] A weighing and metering device is provided between the packaging bag 15 and the discharge port 14, which is not shown in the present embodiment.

[0052] Example 2

[0053] Combine Figure 3 and Figure 4 The present invention describes a charging silo for homogenized mold slag finished material, comprising a feed port 11 at the top of the silo, a vertical barrel 12, a downwardly contracting silo cone 13, a discharge port 14, and a packaging bag 15 for receiving material discharged from the discharge port. A perforated plate 16 for controlling material distribution is disposed between the vertical barrel 12 and the downwardly contracting silo cone 13. The outer diameter of the perforated plate 16 for material distribution is greater than the inner diameter of the vertical barrel 12, and the inner diameter of the upper opening of the downwardly contracting silo cone 13 is greater than the outer diameter of the perforated plate 16 for material distribution. A straight section 19 is provided based on the thickness of the perforated plate 16 for material distribution to accommodate the perforated plate 16 for material distribution. The perforated plate 16 for material distribution is disposed between the lower end of the vertical barrel 12 and the upper opening of the downwardly contracting silo cone 13, and is sealed and connected via a flange 20.

[0054] The orifice plate 16 for spreading materials is provided with leakage holes 161, the diameter of which is relatively small near the center of the orifice plate 16, and relatively large far away from the center of the orifice plate 16. This orifice plate can make the material at the edge of the silo fall faster, thereby avoiding the segregation of the material particle size; the non-leakage hole part of the orifice plate edge is made to be on the periphery of the inner wall of the vertical barrel, effectively reducing the obstruction of the orifice plate edge to the material falling along the inner wall of the vertical barrel, making the material along the inner wall of the vertical barrel fall more normally, and the material particles are more evenly distributed. At the same time, because the diameter of the hole on the orifice plate is relatively small near the center of the orifice plate, and relatively large far away from the center of the orifice plate, the material at the edge of the silo falls faster, thereby further avoiding the segregation of the material particle size.

[0055] A material guiding cone 17 is arranged on the upper part of the vertical cylinder 12 below the feeding port 11, the material guiding cone 17 is in the shape of a cone with a small upper part and a large lower part, the material guiding cone 17 is fixedly connected with the inner cavity of the vertical cylinder 12, and a circular hole 171 with a diameter of 1 / 4 of the diameter of the bottom of the material guiding cone 17 is arranged at the middle position of the top end of the material guiding cone 17, the circular hole 171 is arranged at the top of the material guiding cone, which is beneficial to the observation of the condition in the bin from the feeding port 11 downward.

[0056] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A charging silo for homogenized mold slag finished material, characterized in that: The loading silo comprises, from top to bottom, a feed port (11) at the top of the silo, a vertical barrel (12), a downwardly contracting silo cone (13), and a discharge port (14); A perforated plate (16) is provided between the vertical barrel (12) and the silo cone (13), and the perforated plate (16) is used to prevent reverse mixing of materials at the discharge port (14); A material guide cone (17) is provided below the feed port (11) and is located at the upper end of the vertical barrel (12). The material guide cone (17) is used to guide large particles in the material to disperse toward the edge of the vertical barrel (12).

2. The charging silo according to claim 1, characterized in that: The guide cone (17) is in the shape of a cone with a small top and a large bottom. A support frame is provided below the guide cone (17). One end of the support frame is connected to the guide cone (17), and the other end is connected to the inner cavity of the vertical barrel (12).

3. The charging silo according to claim 1, characterized in that: A circular hole (171) is provided at the top of the guide cone (17), the circular hole (171) is coaxially arranged with the feed port (11), and the diameter of the circular hole (171) is 1 / 5 to 1 / 3 of the diameter of the bottom of the guide cone (17).

4. The charging silo according to claim 1, characterized in that: The outer diameter of the orifice plate (16) matches the inner diameter of the vertical barrel (12).

5. The charging silo according to claim 1, characterized in that: The inner diameter of the upper opening of the silo cone (13) is larger than the outer diameter of the orifice plate (16), and the outer diameter of the orifice plate (16) is larger than the inner diameter of the vertical barrel (12).

6. The charging silo according to claim 5, characterized in that: A straight section (19) is provided at the upper opening of the silo cone (13), the inner diameter of the straight section (19) matches the outer diameter of the orifice plate (16), and the height of the straight section (19) matches the thickness of the orifice plate (16).

7. The charging silo according to claim 1, characterized in that The charging silo further comprises a purge device (18), which is located above the orifice plate (16) and is arranged along the tangential direction of the inner wall of the vertical barrel (12).

8. The charging silo according to claim 7, characterized in that: The purge device (18) comprises an air duct (182) and a fan (181).

9. The charging silo according to any one of claims 1 to 8, characterized in that: The leakage holes (161) on the orifice plate (16) have the same aperture size.

10. The charging silo according to any one of claims 1 to 8, characterized in that: The leakage holes (161) on the orifice plate (16) have a diameter that gradually increases from the center of the orifice plate (16) toward a direction away from the center of the orifice plate (16).

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