Blast furnace distribution chute

Abstract

The utility model relates to the technical field of chutes, and discloses a blast furnace distribution chute, which comprises a shell, and is characterized in that the outer surface of the upper end of the shell is fixedly connected with a mounting piece, the outer surface of the front end of the mounting piece is provided with an insertion hole, and the outer surface of the lower end of the shell is connected with an extension device in a sliding manner. Through an arranged extension device, a push-and-pull handle on the outer wall of a standby groove is pushed to one side, at the moment, a sliding piece on the inner wall of the standby groove can synchronously move in a sliding groove plate on the outer wall of a shell, a conical buckle sinks after passing through a fixed butt joint block, the conical buckle is meshed with the fixed butt joint block when passing through, and when the standby groove moves to a certain degree, the conical buckle is buckled with the fixed butt joint block. The chute can be attached to the arc-shaped plate and cannot move, the falling condition is prevented, people can adjust different length requirements conveniently, the situation that the chute length is not enough in the raw material conveying process is avoided, the use multifunctionality of the chute is improved, various requirements in the production process of people are met, and the chute is suitable for various use scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of chutes, in particular to a blast furnace material distribution chute. Background Art

[0002] A chute refers to a trough usually on the ground for transporting things from high to low. It has a smooth inner surface and things can slide down automatically. Blast furnace charge distribution refers to the distribution of charge (mainly ore and coke) in the throat of the blast furnace during the blast furnace ironmaking process. The basic law of blast furnace charge distribution is an important part of the blast furnace smelting process theory. Controlling blast furnace charge distribution is an important means of blast furnace operation. Usually blast furnace charge is loaded into the blast furnace throat in batches. The amount of ore in a batch of charge is determined based on experience and the amount of coke in the batch determined by the coke load constitutes a batch of charge, which is loaded into the throat through a double clock or rotary distributor of the charge distribution equipment. In a normal blast furnace stroke, the distribution of coal gas and charge in the circumferential direction of the furnace is uniform or basically uniform. Therefore, the analysis and study of the distribution of coal gas and charge is mainly the distribution along the radial direction of the cross section. The blast furnace is a countercurrent reactor. The coal gas is generated in the lower part of the blast furnace, and then rises through the charge layer. The charge descends from the upper part to react with the coal gas to complete the smelting processes such as heating, reduction, slag making, and melting. Model studies and blast furnace anatomy have shown that the temperature of the charge gradually increases from top to bottom in the furnace until it melts, maintaining a layered structure in the throat.

[0003] However, it still has some disadvantages. For example, when the traditional blast furnace distribution chute is in use, the inner wall of the chute will be subjected to friction during the transmission of raw materials. Continuous transmission and use will easily cause the inner wall of the chute to be damaged, shortening the service life of the chute. When the transmission route is long, the chute length is limited and multiple chutes need to be installed to complete the transmission work, which increases people's investment cost and consumes people's installation time, which is not conducive to people's use.

[0004] In order to solve the above problems, a blast furnace distribution chute is proposed in the present application. Utility Model Content

[0005] The utility model aims to provide a blast furnace material distribution chute to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blast furnace material distribution chute, comprising an outer shell, the upper outer surface of the outer shell is fixedly connected to a mounting piece, the front end outer surface of the mounting piece is provided with an insertion hole, the lower outer surface of the outer shell is slidably connected to an extension device, the inner wall of the outer shell is fixedly installed with a protective device, the upper outer surface of the outer shell is fixedly connected to a trapezoidal block, the upper outer surface of the trapezoidal block is fixedly connected to a fixed horizontal plate, and the outer wall of the outer shell is fixedly installed with an arc plate.

[0007] Preferably, the extension device includes a slide plate, a fixed docking block, a sliding part, a spare groove, a limit plate, a push-pull handle and a conical buckle. The outer wall of the shell is fixedly installed with the slide plate, the inner surface of one side of the slide plate is fixedly connected with the fixed docking block, and the inner surface of the slide plate is slidably connected with the sliding part.

[0008] Preferably, a conical buckle is movably connected to the outer surface of the upper end of the sliding member, and a spare groove is fixedly installed on the outer surface of the rear end of the sliding member.

[0009] Preferably, a limiting plate is fixedly connected to the inner wall of the spare groove, and a push-pull handle is fixedly installed on the outer wall of the spare groove.

[0010] Preferably, the protective device includes a No. 1 fixing part, a movable bolt, a wear-resistant layer, a high temperature resistant layer and a bonding layer, the inner wall of the outer shell is fixedly connected to the No. 1 fixing part, and the inner wall of the No. 1 fixing part is threadedly connected to the movable bolt.

[0011] Preferably, the lower outer surface of the No. 1 fixing piece is fixedly connected with a wear-resistant layer, the lower outer surface of the wear-resistant layer is fixedly connected with a high-temperature resistant layer, and the lower outer surface of the high-temperature resistant layer is fixedly connected with a bonding layer.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model sets an extension device to push the push-pull handle of the outer wall of the spare groove to one side. At this time, the sliding part of the inner wall of the spare groove will be synchronously displaced in the slide groove plate of the outer wall of the shell, and the conical buckle will sink after passing through the fixed docking block. When passing through, the conical buckle will mesh with the fixed docking block. When the spare groove is displaced to a certain extent, it will fit with the arc plate and cannot move to prevent falling. This is convenient for people to adjust different length requirements and avoid the situation where the chute is not long enough during the raw material transmission process. The versatility of its use is improved, the various needs of people in the production process are met, and it is suitable for various usage scenarios.

[0014] The utility model provides a protective device, wherein a No. 1 fixing part is penetrated and fixed to the inner wall of the outer shell by a movable bolt, and the inner wall of the chute is protected by the wear-resistant layer and the high-temperature resistant layer, so as to prevent the chute from being worn and damaged during the raw material transmission process, thereby increasing its service life, effectively protecting the inner wall of the chute so that high-intensity transmission work can be performed, avoiding damage caused by long-term use friction, and reducing people's maintenance expenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a blast furnace distribution chute according to the utility model;

[0016] Figure 2 This is a schematic diagram of the exploded structure of a blast furnace distribution chute of the utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of an extension device in a blast furnace distribution chute according to the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the overall structure of a protective device in a blast furnace distribution chute.

[0019] In the figure: 1. Shell; 2. Mounting part; 3. Extension device; 4. Trapezoidal block; 5. Fixed horizontal plate; 6. Protective device; 7. Insertion hole; 8. Arc plate; 9. Slide plate; 10. Fixed docking block; 11. Sliding part; 12. Spare slot; 13. Limiting piece; 14. Push-pull handle; 15. Conical buckle; 16. No. 1 fixing part; 17. Movable bolt; 18. Wear-resistant layer; 19. High temperature resistant layer; 20. Bonding layer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1-Figure 4 The utility model provides a technical solution: a blast furnace charging chute, comprising a shell 1, a mounting member 2 is fixedly connected to the outer surface of the upper end of the shell 1, an insertion hole 7 is opened on the outer surface of the front end of the mounting member 2, an extension device 3 is slidably connected to the outer surface of the lower end of the shell 1, a protective device 6 is fixedly installed on the inner wall of the shell 1, a trapezoidal block 4 is fixedly connected to the outer surface of the upper end of the shell 1, a fixed horizontal plate 5 is fixedly connected to the outer surface of the upper end of the trapezoidal block 4, an arc plate 8 is fixedly installed on the outer wall of the shell 1, and the mounting member 2 can facilitate people to quickly dock and install the chute, save cumbersome installation steps, and improve its use efficiency.

[0022] In this embodiment, Figure 3 As shown, the extension device 3 includes a slide plate 9, a fixed docking block 10, a sliding member 11, a spare groove 12, a limiting plate 13, a push-pull handle 14 and a conical buckle 15. The outer wall of the shell 1 is fixedly installed with the slide plate 9, the inner surface of one side of the slide plate 9 is fixedly connected with the fixed docking block 10, the inner surface of the slide plate 9 is slidably connected with the sliding member 11, the upper end outer surface of the sliding member 11 is movably connected with the conical buckle 15, the rear end outer surface of the sliding member 11 is fixedly installed with the spare groove 12, the inner wall of the spare groove 12 is fixedly connected with the limiting plate 13, the outer wall of the spare groove 12 is fixedly installed with the push-pull handle 14, and the spare groove 12 can be freely adjusted in length to meet people's various needs during production.

[0023] In this embodiment, Figure 4As shown, the protective device 6 includes a No. 1 fixing part 16, a movable bolt 17, a wear-resistant layer 18, a high temperature resistant layer 19 and a bonding layer 20. The inner wall of the outer shell 1 is fixedly connected with the No. 1 fixing part 16, the inner wall of the No. 1 fixing part 16 is threadedly connected with the movable bolt 17, the lower end outer surface of the No. 1 fixing part 16 is fixedly connected with the wear-resistant layer 18, the lower end outer surface of the wear-resistant layer 18 is fixedly connected with the high temperature resistant layer 19, and the lower end outer surface of the high temperature resistant layer 19 is fixedly connected with the bonding layer 20. The wear-resistant layer 18 can reduce the friction caused by the long-term transmission of raw materials and avoid damage to the inner surface of the chute.

[0024] Working principle:

[0025] Before using a blast furnace material distribution chute, the staff first tilts the shell 1 at an angle, installs it in the working area through the mounting member 2, and fixes it through the insertion hole 7 to transfer the raw materials through the shell 1. Through the extension device 3, the push-pull handle 14 of the outer wall of the spare groove 12 is pushed to one side. At this time, the sliding member 11 on the inner wall of the spare groove 12 will be synchronously displaced in the slide plate 9 on the outer wall of the shell 1. The conical buckle 15 sinks after passing through the fixed docking block 10. When passing through, the conical buckle 15 will mesh with the fixed docking block 10. When the spare groove 12 is displaced to a certain extent, it will fit with the arc plate 8 and cannot move. , to prevent it from falling, it is convenient for people to adjust different length requirements, avoid the situation where the chute is not long enough during the raw material transmission process, improve its versatility, meet people's various needs in the production process, and adapt to various usage scenarios. Through the protective device 6, the No. 1 fixing part 16 is fixed to the inner wall of the shell 1 through the movable bolt 17, and the inner wall of the chute is protected by the wear-resistant layer 18 and the high-temperature resistant layer 19. The wear and damage to the chute caused by the transmission of raw materials is protected, the service life is increased, and the inner wall of the chute is effectively protected for high-intensity transmission work, avoiding damage caused by long-term use friction, and reducing people's maintenance expenses.

[0026] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present utility model.

Claims

1. A blast furnace distribution chute, comprising a housing (1), characterized in that: The outer surface of the upper end of the shell (1) is fixedly connected to a mounting member (2), the outer surface of the front end of the mounting member (2) is provided with an insertion hole (7), the outer surface of the lower end of the shell (1) is slidably connected to an extension device (3), the inner wall of the shell (1) is fixedly installed with a protective device (6), the outer surface of the upper end of the shell (1) is fixedly connected to a trapezoidal block (4), the outer surface of the upper end of the trapezoidal block (4) is fixedly connected to a fixed horizontal plate (5), and the outer wall of the shell (1) is fixedly installed with an arc plate (8).

2. A blast furnace distribution chute according to claim 1, characterized in that: The extension device (3) comprises a slide plate (9), a fixed docking block (10), a sliding member (11), a spare groove (12), a limit plate (13), a push-pull handle (14) and a conical buckle (15); the slide plate (9) is fixedly mounted on the outer wall of the housing (1); the fixed docking block (10) is fixedly connected to the inner surface of one side of the slide plate (9); and the sliding member (11) is slidably connected to the inner surface of the slide plate (9).

3. A blast furnace distribution chute according to claim 2, characterized in that: The upper outer surface of the sliding member (11) is movably connected with a conical buckle (15), and the rear end outer surface of the sliding member (11) is fixedly mounted with a spare groove (12).

4. A blast furnace distribution chute according to claim 3, characterized in that: A limiting plate (13) is fixedly connected to the inner wall of the spare groove (12), and a push-pull handle (14) is fixedly installed on the outer wall of the spare groove (12).

5. A blast furnace distribution chute according to claim 4, characterized in that: The protective device (6) comprises a No. 1 fixing piece (16), a movable bolt (17), a wear-resistant layer (18), a high-temperature resistant layer (19) and a bonding layer (20); the inner wall of the outer shell (1) is fixedly connected to the No. 1 fixing piece (16); and the inner wall of the No. 1 fixing piece (16) is threadedly connected to the movable bolt (17).

6. A blast furnace distribution chute according to claim 5, characterized in that: The lower outer surface of the first fixing member (16) is fixedly connected to a wear-resistant layer (18), the lower outer surface of the wear-resistant layer (18) is fixedly connected to a high-temperature resistant layer (19), and the lower outer surface of the high-temperature resistant layer (19) is fixedly connected to a bonding layer (20).

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