Weighing type skip car for feeding of blast furnace

Abstract

The utility model provides a weighing type skip car for blast furnace feeding, which relates to the technical field of blast furnace skip cars and comprises a skip car body and a wear-resisting lining plate arranged in the skip car body, a plurality of strip-shaped red wear-resisting plates are uniformly distributed on the wear-resisting lining plate along the height direction of the skip car body, and the red wear-resisting plates are uniformly distributed along the height direction of the skip car. The volume of 8 m < 3 > is equally divided into 8 parts, scale scales are arranged on the surface, and the scale reference unit is half of the distance between every two adjacent red wear-resisting plates. By observing the relative position offset of the material pile tip and the scale, the moisture change of coke or the particle size change of crude fuel can be directly judged. The width of the red wear-resisting plate is 1 / 8-1 / 10 of the perimeter of the inner wall, and the two ends of the red wear-resisting plate extend to the top and the bottom of the skip car. The device is simple in structure and low in improvement cost, does not need additional detection equipment, can quantify material characteristic fluctuation in real time, remarkably improves the process adjustment efficiency of the blast furnace, and avoids furnace condition fluctuation caused by coke load deviation.

Description

A weighing car for charging blast furnaces Technical Field

[0001] This utility model relates to the field of blast furnace charging car technology, and more specifically, to a weighing charging car for blast furnace charging. Background Technology

[0002] The blast furnace charging car is a core piece of equipment in the ironmaking process, used to transport raw materials such as ore and coke to the top of the blast furnace. Existing charging cars mostly use manganese steel or white cast iron wear-resistant liners to improve wear resistance, but their function is limited to transportation and cannot quantify the amount of material. Operators can only roughly estimate the volume of material in the charging car, and when coke moisture content fluctuates or raw material particle size changes, it is difficult to accurately judge the actual weight change due to the lack of intuitive quantitative methods. Increased coke moisture content leads to a decrease in bulk density, resulting in a larger loading volume in the charging car for the same batch weight. However, existing charging cars lack volume calibration structures, making it difficult for operators to quickly identify such changes, easily causing deviations in coke load adjustments and affecting furnace stability. Furthermore, existing technological improvements focus on improving carrying efficiency or wear resistance, but still do not address the need for real-time monitoring of material quantification and moisture / particle size changes. Literature such as "Innovation in the Modification of Blast Furnace Charging Car Liners at Xinjin Steel" only optimizes wear resistance and fails to provide intuitive judgment of process parameters.

[0003] Therefore, there is an urgent need for a material car structure that combines wear resistance and weighing function, and to solve the technical problem of insufficient material quantification accuracy in blast furnace operation through simple and reliable volume division and calibration design. Summary of the Invention

[0004] To address the aforementioned technical issues, a weighing car for blast furnace charging is provided. The car's volume is evenly divided by a red wear-resistant plate and marked with scales. Changes in coke moisture or particle size can be intuitively determined based on changes in the position of the material pile tip.

[0005] To achieve the above objectives, this utility model provides a weighing car for blast furnace charging, including a car body and a wear-resistant liner installed inside it. The wear-resistant liner has multiple strip-shaped red wear-resistant plates evenly distributed along the height direction of the car body, and the red wear-resistant plates divide the volume inside the car into multiple equal areas. The surface of the red wear-resistant plates is provided with scale markings, which are used to determine the moisture content or particle size changes of the material by observing the relative position of the material pile tip and the scale markings.

[0006] Furthermore, the number of red wear-resistant plates is 8, which divides the volume of the material cart body into 8 equal parts.

[0007] Furthermore, the red wear-resistant plate is made of manganese steel or white cast iron and is fixedly connected to the inner wall of the material cart body.

[0008] Furthermore, the scale is based on half the distance between adjacent red wear-resistant plates, and is used to quantify the positional offset of the material pile tip.

[0009] Furthermore, the height of the red wear-resistant plate is consistent with the height of the inner wall of the material cart body, and each red wear-resistant plate extends continuously in the vertical direction, with its two ends fixedly connected to the top and bottom of the material cart body, respectively.

[0010] Furthermore, the width of the red wear-resistant plate is 1 / 8 to 1 / 10 of the circumference of the inner wall of the material cart body, and the surface of each red wear-resistant plate is flush with the wear-resistant liner.

[0011] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] 1. The present invention provides a weighing material car for blast furnace charging, which realizes the function of dividing the car volume and scale by adding a red wear-resistant plate, without the need for complex equipment or high investment, and significantly reduces the upgrade cost of the blast furnace material metering system.

[0013] 2. The present invention provides a weighing car for blast furnace charging, which can intuitively judge the change in coke pile specific gravity based on the position change of the material pile tip and the scale, quickly identify the impact of moisture fluctuation on weight, and thus accurately adjust the coke load and stabilize the furnace condition.

[0014] 3. The present invention provides a weighing material car for blast furnace charging. Under the premise of constant coke batch weight, the material level offset scale directly reflects the trend of raw material particle size change, assisting the operator in optimizing raw material ratio and process parameters. Attached Figure Description

[0015] 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 or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 is a schematic diagram of a weighing car for blast furnace charging according to the present invention.

[0017] Figure 2 is a layout diagram of the red wear-resistant plate of a weighing car for blast furnace charging according to the present invention.

[0018] In the picture: 1. Material cart body; 2. Wear-resistant liner; 3. Red wear-resistant plate; 4. Scale markings; 5. Fixing screws. Detailed Implementation

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] 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 the present invention. 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.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0024] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0026] As shown in Figures 1 and 2, this utility model provides a weighing broiler charging car, including a car body 1 and a wear-resistant liner 2 disposed inside it. The wear-resistant liner 2 has multiple strip-shaped red wear-resistant plates 3 evenly distributed along the height direction of the car body 1 and is fixed to the car body by fixing screws 5. The red wear-resistant plates 3 divide the volume inside the car into multiple equal areas. The surface of the red wear-resistant plates 3 is provided with scale markings 4, which are used to determine the moisture or particle size changes of the material by observing the relative position of the material pile tip and the scale markings 4, without the need for additional detection equipment.

[0027] Furthermore, the number of red wear-resistant plates 3 is 8, which divide the volume of the material cart body 1 into 8 equal parts, standardize the volume division, simplify the operator's calculation process, ensure that the material level corresponds to the scale when the coke batch weight is fixed, and improve the judgment accuracy.

[0028] Furthermore, the red wear-resistant plate 3 is made of manganese steel or white cast iron and is fixedly connected to the inner wall of the material cart body 1. The wear resistance of the material is consistent with that of the material cart body 1, which extends the service life and avoids material flow obstruction due to uneven installation.

[0029] Furthermore, the scale 4 uses half the distance between adjacent red wear-resistant plates 3 as the reference unit to quantify the positional offset of the material pile tip. Quantifying the pile tip offset makes it easier for operators to quickly judge the magnitude of moisture or particle size changes and improve the accuracy of adjusting the coke load.

[0030] Furthermore, the height of the red wear-resistant plate 3 is consistent with the height of the inner wall of the material cart body 1, and each red wear-resistant plate 3 extends continuously in the vertical direction, with its two ends fixedly connected to the top and bottom of the material cart body 1, respectively, to avoid misjudgment of scale due to discontinuity of the plate when the material is accumulated, and to ensure the continuity and reliability of material level observation.

[0031] Furthermore, the width of the red wear-resistant plate 3 is 1 / 8 to 1 / 10 of the circumference of the inner wall of the material cart body 1, and the surface of each red wear-resistant plate 3 is flush with the wear-resistant liner 2. While ensuring the segmentation accuracy, it reduces the occupation of the effective volume of the material cart, ensures smooth material flow, and avoids the risk of material jamming.

[0032] The specific implementation process of this embodiment is as follows: The charging car body 1 adopts the standard structure of the existing blast furnace charging car, and wear-resistant lining plates 2 are installed inside. The material is manganese steel or white cast iron to enhance wear resistance. The wear-resistant lining plates 2 cover the inner wall of the charging car to protect the car body and extend its service life;

[0033] Eight strip-shaped red wear-resistant plates 3 are uniformly welded and fixed along the height direction of the material cart body 1. The red wear-resistant plates 3 are made of manganese steel or white cast iron. Each plate extends continuously in the vertical direction and is fixed at both ends to the top and bottom of the material cart to ensure that its height is consistent with the inner wall of the material cart. The width of the red wear-resistant plates 3 is set to 1 / 8 to 1 / 10 of the circumference of the inner wall of the material cart and is flush with the surface of the wear-resistant liner 2 to avoid obstructing the flow of materials.

[0034] 8m through 8 red wear-resistant plates 3 3 The material cart's internal volume is divided into 8 equal sections, each corresponding to 1m². 3 Volume, scale markings 4 are machined on the surface of red wear-resistant plate 3. The scale unit is based on half the distance between adjacent red wear-resistant plates 3. For example, if the distance between adjacent plates is 100cm, then the base unit of scale markings 4 is 50cm.

[0035] Judgment of coke moisture changes: When the coke batch weight is fixed and dry quenching is performed without water, the coke pile tip should be aligned with a certain mark 4 on a scale. If the coke moisture increases, causing a decrease in bulk density, the pile tip will be lower than the original mark. The operator can quantify the moisture change by observing the offset.

[0036] Judging particle size changes: Under the premise of fixed bulk density and batch weight, if the particle size of coke or ore becomes smaller, the material will be more compacted, and the position of the pile tip will be higher than the original scale position. The particle size change can be intuitively judged by the scale offset.

[0037] During the material cart manufacturing process, it is necessary to ensure the installation accuracy of the red wear-resistant plate 3 to avoid the division error affecting the volume interpretation. The clarity of the scale 4 should be checked regularly. If the scale becomes blurred due to wear, the red wear-resistant plate 3 should be repaired or replaced in time.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high furnace charging scale wagon, comprising a wagon body and a wear-resistant lining plate arranged in the interior of the wagon body, characterized in that: The wear-resistant liner has multiple strip-shaped red wear-resistant plates evenly distributed along the height of the material cart body. The red wear-resistant plates divide the internal volume of the material cart into multiple equal areas. The surface of the red wear-resistant plates is provided with scale markings, which are used to determine the changes in moisture or particle size of the material by observing the relative position of the material pile tip and the scale markings.

2. The scale car for charging a blast furnace according to claim 1, wherein The number of red wear-resistant plates is 8, which divides the volume of the material cart body into 8 equal parts.

3. The scale car for charging a blast furnace according to claim 1, wherein The red wear-resistant plate is made of manganese steel or white cast iron and is fixedly connected to the inner wall of the material cart body.

4. A weighing car for blast furnace charging according to claim 1, characterized in that, The scale is based on half the distance between adjacent red wear-resistant plates, and is used to quantify the positional offset of the material pile tip.

5. The scale car for charging a blast furnace according to claim 1, wherein The height of the red wear-resistant plate is the same as the height of the inner wall of the material cart body, and each red wear-resistant plate extends continuously in the vertical direction, with its two ends fixedly connected to the top and bottom of the material cart body, respectively.

6. A weighing car for blast furnace charging according to claim 1, characterized in that, The width of the red wear-resistant plate is 1 / 8 to 1 / 10 of the circumference of the inner wall of the material cart body, and the surface of each red wear-resistant plate is flush with the wear-resistant liner.

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