A ladle provided with a wear-resistant lining

Abstract

The utility model discloses a kind of material tank of wear-resistant lining plate setting, belong to furnace top material tank equipment field, including tank body, tank body is the container of upper cylindrical, lower conical, tank body cylindrical portion top is feed inlet, tank body conical portion bottom is discharge port, tank body conical portion inner conical surface is provided with two circles of material tank lining plate from top to bottom, every piece of material tank lining plate is provided with 2 fastening bolts, a circle of wear-resistant lining plate is commonly set on the fastening bolt of several roots of lower circle of material tank lining plate, the utility model can economically, effectively and reliably solve the local serious wear problem caused by the bolt peripheral area of furnace top material tank conical surface lining plate due to material flow concentrated impact, avoid the huge waste caused by being forced to replace lining plate as a whole due to small range damage.

Description

Technical Field

[0001] This utility model relates to the field of furnace top material tank equipment, and in particular to a material tank equipped with a wear-resistant lining plate. Background Technology

[0002] In industries such as metallurgy, mining, and building materials, furnace top hoppers are crucial equipment for storing and transferring materials such as ores and coke. These hoppers typically have a conical bottom to facilitate the smooth discharge of materials under gravity. To resist the severe impact and wear caused by material flow, especially high-speed falling material flow, the inner wall of the hopper, particularly the conical section, is generally lined with wear-resistant plates.

[0003] Currently, the common method for installing wear-resistant liners involves setting multiple liner plates in concentric rings on the conical surface of the liner tank and securing them with bolts. For example, in a typical furnace top liner tank design, there are two rings of liners on the conical surface, with two fastening bolts on the upper part of each ring to firmly fix the liner plates to the conical structure of the liner tank. However, this design has significant drawbacks in actual operation. Due to the material flow path inside the liner tank and the tank's structural design, during the discharge process, the high-speed falling material flow will highly concentrate its impact on a specific area at the top of the first ring of liners, especially around the fastening bolts of that ring. This continuous, high-intensity localized impact leads to two serious consequences: severe wear of the liner plates around the bolts, and the impact force concentrated in a limited area near the bolt mounting holes, causing the liner material in that area to wear down, thin, or even break rapidly. The wear area is usually concentrated in the upper part of that ring of liners, covering approximately one-quarter of the entire liner area. Uneven wear leads to resource waste. In stark contrast to the severe wear around the bolts, most other areas of the liner show only slight wear or are essentially intact. Replacing the entire liner, or even the entire ring, due to severe localized wear would result in enormous material waste and downtime maintenance costs, making it extremely uneconomical. Current technologies for addressing this type of localized wear often involve replacing the entire liner or attempting localized repairs. However, complete replacement is costly and doesn't fully utilize the unworn portions; while localized repairs, such as directly welding reinforcement structures or attaching wear-resistant layers to severely worn areas, are often difficult to securely fix due to the poor weldability or inability to reliably weld the liner material itself. These repairs are highly susceptible to detachment and failure under continuous impact from subsequent materials, failing to provide lasting protection.

[0004] Therefore, how to economically, effectively and reliably solve the problem of severe local wear caused by the concentrated impact of material flow on the conical liner of the furnace top material tank around the bolts, avoid the huge waste caused by the forced replacement of the entire liner due to small-scale damage, and overcome the technical obstacle of direct welding reinforcement on the liner body, has become a technical problem that urgently needs to be improved in this field. Utility Model Content

[0005] The technical problem this invention aims to solve is to provide a material tank with a wear-resistant liner. It addresses the issues of uneven wear of existing material tank liners and severe wear on the lower liner, effectively extending the service life of the liner, reducing labor intensity for workers, and saving on liner replacement costs.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a material tank with wear-resistant lining plates, including a tank body, which is a container with a cylindrical upper part and a conical lower part. The top of the cylindrical part of the tank body is the inlet, and the bottom of the conical part of the tank body is the outlet. Two rings of material tank lining plates are arranged from top to bottom on the inner conical surface of the conical part of the tank body. Two fastening bolts are arranged on the upper part of each material tank lining plate, and a ring of wear-resistant lining plates is arranged on several fastening bolts of the lower ring of material tank lining plates.

[0007] A further improvement of the present invention is that the wear-resistant liner structure consists of several fastening bolts uniformly selected from the bottom ring of the liner, with reinforcing bars welded onto each bolt, and a middle plate laid on the reinforcing bars. The middle plates are connected end to end and welded to form a ring, and a ceramic liner is attached to the middle plate.

[0008] A further improvement of this utility model is that the number of steel bars welded on the selected fastening bolt is 24, each steel bar is ∮24 and has a length of 150mm.

[0009] A further improvement to this utility model is that the angle of each steel bar is raised by 20°.

[0010] A further improvement to the technical solution of this utility model is that the thickness of the middle plate is 16mm.

[0011] The technological advancements achieved by this invention, due to the adoption of the above-mentioned technical solutions, are as follows: By uniformly selecting a portion of the fastening bolts of the lower ring of lining plates and welding reinforcing bars onto these bolts, the problem of directly welding wear-resistant lining plates to the lining plates is solved. Adding a section of reinforcing bar provides a wider installation space for the wear-resistant lining plates, facilitating installation. Raising the reinforcing bars by 20° allows for more natural contact with the material during feeding, resulting in better cushioning and protection of the tank lining plates. Laying the middle plate before the lining plates ensures a more stable arrangement. Attached Figure Description

[0012] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Among them, 1. Tank liner, 2. Fastening bolts, 3. Reinforcing bars, and 4. Wear-resistant liner. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to embodiments:

[0016] like Figure 1 The diagram shows a schematic of a material tank structure with wear-resistant liners. This new type is a modification of a traditional furnace top material tank. The material tank includes a tank body, an inlet, and an outlet. The tank body is a container composed of an upper cylindrical part and a lower conical part. The top of the cylindrical part of the tank body is the inlet, and the bottom of the conical part is the outlet. Two rings of material tank liners 1 are arranged from top to bottom on the inner conical surface of the conical part of the tank body. Each material tank liner 1 is equipped with two fastening bolts 2. A ring of wear-resistant liners 4 is arranged on several fastening bolts 2 of the lower ring of material tank liners 1. Specifically, a certain number of fastening bolts 2 of the lower ring of material tank liners 1 are selected and uniformly welded with reinforcing bars 3. In this embodiment, 24 fastening bolts 2 are selected, and these 24 fastening bolts are evenly distributed around the ring of the material tank. A reinforcing bar 3 is welded to each bolt, resulting in a uniform ring of 24 reinforcing bars 3 inside the hopper. Each reinforcing bar 3 is ∮24mm long and 150mm in length. During welding, the welding angle of each reinforcing bar 3 is 20° outward and upward along the bolt. Using the ring of reinforcing bars 3 welded to the bolts on the hopper as a base, a layer of several medium plates, each 16mm thick, is laid on top of this ring. The medium plates are welded end to end to form a ring, increasing strength and preventing detachment. Subsequently, ceramic liners are installed and adhered for effective fixation, forming a storage space. This storage space receives the impact of the material flow immediately during discharge, preventing material from impacting the hopper liner and greatly extending the liner's lifespan. This new type of material can economically, effectively, and reliably solve the problem of severe localized wear on the conical liner of the furnace top hopper caused by the concentrated impact of material flow on the area around the bolts. It avoids the huge waste caused by having to replace the entire liner due to minor damage. After the six-month maintenance cycle, the hopper is inspected during the shutdown period. The material on the upper part of the modified wear-resistant liner is good, with only slight wear. The welds of the ceramic liner and the supporting steel bars are normal. The original liner of the hopper is not worn due to the protection of the modified wear-resistant liner. The modification measures are effective. As long as the wear-resistant liner is properly maintained, the service life of the hopper liner can be effectively extended by more than 2 times, reducing the labor intensity of workers and saving the cost of replacing the liner.

[0017] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A material tank with a wear-resistant liner, comprising a tank body, the tank body being a container with a cylindrical upper part and a conical lower part, the top of the cylindrical part of the tank body being a feed inlet and the bottom of the conical part of the tank body being a discharge outlet, characterized in that: The inner conical surface of the conical part of the tank is provided with two rings of tank liners (1) from top to bottom. Each tank liner (1) is provided with two fastening bolts (2). On the lower ring of tank liners (1), a ring of wear-resistant liners (4) is provided together on several fastening bolts (2).

2. A material tank with a wear-resistant liner according to claim 1, characterized in that: The wear-resistant liner (4) is constructed by uniformly selecting several fastening bolts (2) on the bottom ring of the liner, with a steel bar (3) welded on each bolt, and a middle plate laid on the steel bar (3). The middle plates are connected end to end and welded to form a ring, and a ceramic liner is pasted on the middle plate.

3. A material tank with a wear-resistant liner according to claim 2, characterized in that: The number of steel bars (3) welded on the selected fastening bolts (2) is 24, each steel bar (23) is ∮24, and the length is 150mm.

4. A material tank with a wear-resistant liner according to claim 3, characterized in that: The angle of each steel bar (3) is 20° upward.

5. A material tank with a wear-resistant liner according to claim 2, characterized in that: The thickness of the middle plate is 16mm.

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