A curved coal chutes

Abstract

This utility model relates to the field of coal chutes, specifically a curved coal chute, comprising a lower arc-shaped pipe and an upper arc-shaped pipe. The upper arc-shaped pipe is positioned at the top of the lower arc-shaped pipe, and a connecting flange is welded to the top of the upper arc-shaped pipe. Both the lower and upper arc-shaped pipes have wear-resistant layers on their outer sides. A first flow collector is welded to one end of the lower arc-shaped pipe. The first and second flow collectors on the inner sides of both the lower and upper arc-shaped pipes prevent coal from falling and carrying a large amount of air within the pipe. Both the lower and upper arc-shaped pipes are curved, which reduces the friction of the coal flow against the pipe wall, eliminating coal blockage and uneven coal distribution. The curved structure causes the coal to fall at a certain angle to the next section, rather than falling close to one side of the pipe wall. When it finally reaches the coal conveying device, the coal is dispersed and can fall evenly into the conveying device.

Description

Technical Field

[0001] This utility model relates to the field of coal chutes, specifically to a curved coal chute. Background Technology

[0002] In chemical plants and power plants, the coal chutes used for coal transfer are mostly straight structures with square cross-sections. Coal chutes are core equipment used in industrial settings such as coal mines, thermal power plants, ports, and coal washing plants for transporting pulverized coal and coal lumps. They achieve efficient material transfer and diversion control through the pipeline structure.

[0003] Currently, the problems encountered in the transportation process of traditional straight coal chutes not only shorten their service life, but also cause coal to adhere to the inner wall of the chutes during use, resulting in a reduction in the diameter of the chutes and making them prone to blockage. At the same time, the coal falls close to one side of the chutes during the falling process, resulting in uneven coal distribution. When the coal falls onto the conveying device, it causes coal bias, which increases the current in the coal conveying system and, in severe cases, can cause the equipment to trip and fail to meet production requirements. Therefore, a curved coal chute is proposed. Through the curved structure design of the lower and upper arc-shaped pipe bodies, the friction of the coal flow on the pipe wall can be reduced, eliminating coal blockage and coal bias. The curved coal chute structure is simple in structure and has a long service life. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a curved coal chuting pipe. Through the curved structure design of the lower and upper arc-shaped pipe bodies, the friction of coal flow on the pipe wall can be reduced, eliminating coal blockage and coal deviation. The curved coal chuting pipe structure is simple in structure and has a long service life.

[0005] The technical solution adopted by this utility model to solve its technical problem is a curved coal drop pipe, including a lower arc-shaped pipe body and an upper arc-shaped pipe body. The upper arc-shaped pipe body is set at the top of the lower arc-shaped pipe body. A connecting flange is welded to the top of the upper arc-shaped pipe body. A wear-resistant layer is provided on the outer side of both the lower arc-shaped pipe body and the upper arc-shaped pipe body.

[0006] A first collector plate is welded to one end of the lower arc-shaped tube body, and a second collector plate corresponding to the first collector plate is welded to one end of the upper arc-shaped tube body.

[0007] By adopting the above technical solutions, the lower and upper arc-shaped pipes with curved structures can reduce the friction of coal flow against the pipe wall and eliminate coal blockage and coal deviation. The first and second flow collectors can prevent coal from falling and dispersing within the lower and upper arc-shaped pipes, carrying a large amount of air.

[0008] Specifically, the lower arc-shaped tube body is welded with a first flange, the upper arc-shaped tube body is provided with a second flange at its bottom end, and a sealing ring is provided between the first flange and the second flange.

[0009] Specifically, the second flange is fitted with fixing bolts at equal intervals inside, and the fixing bolts are fitted with nuts on the outer side of the bottom of the first flange.

[0010] Specifically, the wear-resistant layer is made of ceramic powder material.

[0011] Specifically, lifting rings are welded to one side of the lower arc-shaped tube and the upper arc-shaped tube.

[0012] Specifically, both the lower and upper arc-shaped tubes are made of stainless steel.

[0013] The beneficial effects of this utility model are:

[0014] (1) The curved coal drop pipe of this utility model has a first flow collector and a second flow collector on the inner side of the lower arc-shaped pipe body and the upper arc-shaped pipe body. This can prevent the coal from falling and carrying a large amount of air in the lower arc-shaped pipe body and the upper arc-shaped pipe body. Both the lower arc-shaped pipe body and the upper arc-shaped pipe body are curved structure designs, which can reduce the friction force of the coal flow on the pipe wall and eliminate the phenomena of coal blockage and coal deviation. The curved structure makes the coal fall at a certain angle to the next section, instead of falling close to one side of the pipe wall. When it finally falls into the coal conveying device, the coal is dispersed and can fall evenly into the coal conveying device.

[0015] (2) The curved coal chute of this utility model has a wear-resistant layer made of ceramic powder material on the surface of the lower arc-shaped pipe body and the upper arc-shaped pipe body, which can improve the strength of the lower arc-shaped pipe body and the upper arc-shaped pipe body, thereby improving their service life. The connecting flange is a live flange when not installed, and can be effectively adjusted when the position deviates due to environmental factors during the installation process. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 This is a cross-sectional view of the lower arc-shaped tube and the upper arc-shaped tube of this utility model;

[0020] Figure 4 This is a cross-sectional view of the wear-resistant layer of this utility model;

[0021] In the diagram: 1. Lower arc-shaped pipe body; 2. Upper arc-shaped pipe body; 3. Connecting flange; 4. First manifold; 5. Second manifold; 6. First flange; 7. Second flange; 8. Sealing ring; 9. Wear-resistant layer; 10. Fixing bolt; 11. Nut; 12. Lifting ring. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] The curved structure design of the lower and upper arc-shaped pipes reduces the friction of coal flow against the pipe wall, eliminates coal blockage and coal deviation, and features a simple structure and long service life. Figure 1-4 As shown, the curved coal chute of this utility model includes a lower arc-shaped pipe body 1 and an upper arc-shaped pipe body 2. The upper arc-shaped pipe body 2 is disposed on the top of the lower arc-shaped pipe body 1. A connecting flange 3 is welded to the top of the upper arc-shaped pipe body 2. A wear-resistant layer 9 is provided on the outer side of both the lower arc-shaped pipe body 1 and the upper arc-shaped pipe body 2.

[0024] A first collector plate 4 is welded to one end of the inner side of the lower arc-shaped tube 1, and a second collector plate 5 corresponding to the first collector plate 4 is welded to one end of the inner side of the upper arc-shaped tube 2.

[0025] In use, the lower arc-shaped tube 1 and the upper arc-shaped tube 2 with their curved structure can reduce the friction of the coal flow against the tube wall and eliminate coal blockage and coal deviation. The first collector plate 4 and the second collector plate 5 can prevent the coal from falling and spreading in the lower arc-shaped tube 1 and the upper arc-shaped tube 2, carrying a large amount of air.

[0026] For example, such as Figure 2 As shown, the present invention also includes a first flange 6 welded to the lower arc-shaped tube 1, a second flange 7 provided at the bottom end of the upper arc-shaped tube 2, and a sealing ring 8 provided between the first flange 6 and the second flange 7.

[0027] During use, the sealing ring 8 seals between the second flange 7 and the first flange 6.

[0028] For example, such as Figure 2 As shown, the present invention also includes a fixing bolt 10 equidistantly sleeved inside the second flange 7, and a nut 11 sleeved on the outer side of the fixing bolt 10 at the bottom of the first flange 6.

[0029] When in use, the nut 11 is put on the outside of the fixing bolt 10 and tightened to fix the second flange 7 and the first flange 6 together.

[0030] For example, such as Figure 4 As shown, the present invention also includes a wear-resistant layer 9 made of ceramic powder material.

[0031] In use, the wear-resistant layer 9 made of ceramic powder material is applied to the surface of the lower arc-shaped tube 1 and the upper arc-shaped tube 2 through a thermal spraying process, which can improve their strength and thus increase the service life of the lower arc-shaped tube 1 and the upper arc-shaped tube 2.

[0032] For example, such as Figure 1 As shown, the present invention also includes a lifting ring 12 welded to one side of the lower arc-shaped tube 1 and the upper arc-shaped tube 2.

[0033] When in use, the lifting ring 12 facilitates the hoisting and fixing of the lower arc-shaped tube 1 and the upper arc-shaped tube 2.

[0034] For example, such as Figure 1 As shown, the present invention also includes that both the lower arc-shaped tube 1 and the upper arc-shaped tube 2 are made of stainless steel.

[0035] When in use, the lower arc-shaped tube 1 and the upper arc-shaped tube 2, made of stainless steel, are high in strength and not easily worn.

[0036] In use, the lower arc-shaped tube 1 and the upper arc-shaped tube 2 are connected by the second flange 7 and the first flange 6, and are fixed by the fixing bolts 10 and nuts 11. The sealing ring 8 is set between the second flange 7 and the first flange 6 to prevent leakage.

[0037] The surfaces of the lower arc-shaped tube 1 and the upper arc-shaped tube 2 are provided with a wear-resistant layer 9 made of ceramic powder material, which can improve the strength of the lower arc-shaped tube 1 and the upper arc-shaped tube 2, thereby improving their service life. The connecting flange 3 is a live flange when not installed, and can be effectively adjusted when the position deviates due to environmental factors during the installation process.

[0038] The lower arc-shaped pipe 1 and the upper arc-shaped pipe 2 are equipped with a first flow collector 4 and a second flow collector 5 on their inner sides. This can prevent the coal from falling and carrying a large amount of air in the lower arc-shaped pipe 1 and the upper arc-shaped pipe 2. Both the lower arc-shaped pipe 1 and the upper arc-shaped pipe 2 are designed with curved structures, which can reduce the friction of the coal flow on the pipe wall and eliminate coal blockage and coal deviation. The curved structure makes the coal fall at a certain angle to the next section, rather than falling close to one side of the pipe wall. When it finally falls into the coal conveying device, the coal is dispersed and can fall evenly into the coal conveying device.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A curved coal chute, characterized in that, It includes a lower arc-shaped tube (1) and an upper arc-shaped tube (2), the upper arc-shaped tube (2) is disposed on the top of the lower arc-shaped tube (1), a connecting flange (3) is welded to the top of the upper arc-shaped tube (2), and a wear-resistant layer (9) is provided on the outer side of both the lower arc-shaped tube (1) and the upper arc-shaped tube (2). The lower arc-shaped tube (1) has a first collector plate (4) welded to one end of its inner side, and the upper arc-shaped tube (2) has a second collector plate (5) welded to one end of its inner side, corresponding to the first collector plate (4).

2. The curved coal chute according to claim 1, characterized in that, The lower arc-shaped tube (1) is welded with a first flange (6), and the upper arc-shaped tube (2) is provided with a second flange (7) at its bottom end. A sealing ring (8) is provided between the first flange (6) and the second flange (7).

3. A curved coal chute according to claim 2, characterized in that, The second flange (7) is fitted with fixing bolts (10) at equal intervals inside, and the fixing bolts (10) are fitted with nuts (11) on the outside of the bottom of the first flange (6).

4. A curved coal chute according to claim 1, characterized in that, The wear-resistant layer (9) is made of ceramic powder material.

5. A curved coal chute according to claim 1, characterized in that, A lifting ring (12) is welded to one side of the lower arc-shaped tube (1) and the upper arc-shaped tube (2).

6. A curved coal chute according to claim 1, characterized in that, Both the lower arc-shaped tube (1) and the upper arc-shaped tube (2) are made of stainless steel.

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