Discharging pipe of submerged arc furnace

Abstract

The utility model provides a submerged arc furnace blanking pipe, and relates to the technical field of submerged arc furnace blanking pipes, the submerged arc furnace blanking pipe comprises a blanking pipe, the blanking pipe comprises a first buffer pipe and a second buffer pipe, the top of the first buffer pipe is fixedly connected with an ingress pipe through a bolt, and one end of the bottom of the second buffer pipe is fixedly connected with a shunt pipe through a bolt. Buffer assemblies are arranged at the bottom in the first buffer pipe and one side in the second buffer pipe, and the buffer assemblies are arranged in the first buffer pipe and the second buffer pipe, so that the first buffer pipe and the second buffer pipe are protected while the falling speed of the furnace burden is reduced, the situation that the falling speed of the furnace burden is too high, and the furnace burden is damaged is avoided. And the impact force damages the inner wall of the blanking pipe, so that the blanking pipe cannot be used.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding pipes for submerged arc furnaces, in particular to a feeding pipe for submerged arc furnaces. Background Art

[0002] During the operation of the ore-fired furnace, the charge needs to be evenly fed into the furnace. The traditional way of adding charge is manual, which is labor-intensive and labor-intensive, and workers need to be exposed to high temperature environments, which is dangerous.

[0003] The existing feed pipes of the current ore-fired furnace have certain defects. The length of a single feed pipe is too long. When the charge falls in the feed pipe, due to the influence of gravity acceleration and falling height, the higher the falling height, the faster the falling speed, the greater the friction of the charge on the inner wall of the feed pipe, and the greater the impact on the bottom of the feed pipe, causing damage to the feed pipe. Therefore, we propose a feed pipe for an ore-fired furnace. Utility Model Content

[0004] The utility model aims to provide a feed pipe for a submerged arc furnace to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A feed pipe for an electric arc furnace includes a feed pipe, wherein the feed pipe includes a first buffer tube and a second buffer tube, wherein the top of the first buffer tube is fixedly connected with an introduction tube by bolts, and one end of the bottom of the second buffer tube is fixedly connected with a diversion tube by bolts, and buffer assemblies are provided at the bottom of the first buffer tube and one side of the inside of the second buffer tube.

[0007] As a preferred solution of the utility model, one end of the top of the introduction pipe is connected to an external ore-fired furnace silo.

[0008] The technical effect of adopting the above further solution is that the external ore-fired furnace charge bin introduces the charge into the discharge pipe through the connected introduction pipe.

[0009] As a preferred solution of the utility model, the first buffer tube and the second buffer tube are fixedly connected by bolts.

[0010] The technical effect of adopting the above further solution is that the first buffer tube and the second buffer tube are fixedly connected by bolts, which is convenient for disassembly and replacement.

[0011] As a preferred solution of the utility model, the buffer assembly includes a buffer rod, and the top of the buffer rod is fixedly connected with a buffer plate.

[0012] As a preferred solution of the utility model, a plurality of buffer rods are sleeved with buffer springs on their peripheries.

[0013] The technical effect of adopting the above-mentioned further scheme is as follows: the charge is introduced into the discharge pipe through the inlet pipe, and the charge will fall along the straight section of the first buffer pipe and onto the buffer plate in the inclined section. With the cooperation of the buffer rod at the bottom of the buffer plate and the buffer spring around the buffer rod, the buffer plate is buffered and shock-absorbed to eliminate the impact force caused by the falling charge; similarly, when the charge falls into the second buffer pipe through the first buffer pipe, the buffer assembly designed in the second buffer pipe buffers the charge again, thereby not only buffering the falling speed of the charge to a certain extent, but also protecting the first buffer pipe and the second buffer pipe.

[0014] As a preferred solution of the utility model, an observation port is opened on the other side of the inclined section of the first buffer tube, and a cover plate is arranged on the outer side of the observation port.

[0015] As a preferred solution of the utility model, the cover plate is threadedly connected to the observation port.

[0016] The technical effect of adopting the above further solution is: the cover plate is rotated to be removed so that the staff can observe the internal situation of the first buffer tube from the observation port.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. In the utility model, the feed pipe is divided into a first buffer pipe and a second buffer pipe, which are fixedly connected by bolts, so that the damaged pipe part can be easily disassembled and replaced.

[0019] 2. In the utility model, buffer components are provided inside the first buffer tube and the second buffer tube, which can reduce the falling speed of the charge and protect the first buffer tube and the second buffer tube, so as to prevent the charge from falling too fast and causing damage to the inner wall of the discharge tube due to its impact force, thus making it unusable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the planar internal structure of a feed pipe of an ore-fired furnace provided by the utility model;

[0021] Figure 2 A schematic diagram of a partial cross-sectional structure of a first buffer tube of a submerged arc furnace feed pipe provided by the utility model;

[0022] Figure 3 The utility model provides an enlarged schematic diagram of the A zone structure of a submerged arc furnace feed pipe.

[0023] Legend: 1. Feeding tube; 101. First buffer tube; 102. Second buffer tube; 2. Inlet tube; 3. Diverter tube; 4. Buffer assembly; 401. Buffer rod; 4011. Buffer spring; 402. Buffer plate; 5. Observation port; 501. Cover plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant literature, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0028] Example 1

[0029] like Figure 1-3As shown, the utility model provides a technical solution: a feed pipe of an ore-fired furnace, comprising a feed pipe 1, the feed pipe 1 comprising a first buffer tube 101 and a second buffer tube 102, the top of the first buffer tube 101 is fixedly connected with an inlet tube 2 by bolts, and one end of the bottom of the second buffer tube 102 is fixedly connected with a shunt tube 3 by bolts, through which the charge can be shunted out from the furnace, a buffer assembly 4 is arranged at the bottom of the first buffer tube 101 and one side of the inside of the second buffer tube 102, the buffer assembly 4 comprises a buffer rod 401, the top of the buffer rod 401 is fixedly connected with a buffer plate 402, and a plurality of buffer rods 401 are sleeved with a buffer spring 4011 on the periphery, so that the charge can pass through the shunt tube 3. After being introduced into the discharge pipe 1 through the introduction pipe 2, the charge will fall along the straight section of the first buffer pipe 101 and onto the buffer plate 402 in the inclined section. With the cooperation of the buffer rod 401 at the bottom of the buffer plate 402 and the buffer spring 4011 outside the buffer rod 401, the buffer plate 402 is buffered and shock-absorbed to eliminate the impact force caused by the falling charge. Similarly, when the charge falls into the second buffer pipe 102 through the first buffer pipe 101, the buffer assembly 4 designed in the second buffer pipe 102 buffers the charge again, thereby not only buffering the falling speed of the charge to a certain extent, but also protecting the first buffer pipe 101 and the second buffer pipe 102.

[0030] Example 2

[0031] like Figure 1-3 As shown, a feed pipe 1 for an electric arc furnace is provided, and one end of the top of the introduction pipe 2 is connected to an external electric arc furnace silo. The external electric arc furnace silo introduces the charge into the feed pipe 1 through the connected introduction pipe 2. The first buffer tube 101 and the second buffer tube 102 are fixedly connected by bolts. The first buffer tube 101 and the second buffer tube 102 are fixedly connected by bolts, which is convenient for disassembly and replacement. An observation port 5 is provided on the other side of the inclined section of the first buffer tube 101, and a cover plate 501 is provided on the outside of the observation port 5. The cover plate 501 is threadedly connected to the observation port 5. The cover plate 501 is rotated to be removed so that the staff can observe the internal situation of the first buffer tube 101 from the observation port 5.

[0032] The working process of the utility model is as follows: when using a feed tube 1 for an ore-heating furnace, the feed tube 1 comprises a first buffer tube 101 and a second buffer tube 102. The top of the first buffer tube 101 is fixedly connected with an introduction tube 2 by bolts. One end of the top of the introduction tube 2 is connected to an external ore-heating furnace bunker. The external ore-heating furnace bunker introduces the charge into the feed tube 1 through the connected introduction tube 2. The first buffer tube 101 and the second buffer tube 102 are fixedly connected by bolts. The first buffer tube 101 and the second buffer tube 102 are fixedly connected by bolts, which is convenient for disassembly and replacement. A buffer assembly 4 is provided at the bottom of a buffer tube 101 and at one side of the inside of a second buffer tube 102. The buffer assembly 4 includes a buffer rod 401. The top of the buffer rod 401 is fixedly connected to a buffer plate 402. The outer periphery of the plurality of buffer rods 401 is sleeved with a buffer spring 4011. The furnace charge is introduced into the discharge tube 1 through the introduction tube 2. The furnace charge will fall on the buffer plate 402 in the inclined section along the straight section of the first buffer tube 101. With the cooperation of the buffer rod 401 at the bottom of the buffer plate 402 and the buffer spring 4011 outside the buffer rod 401, the buffer The punch plate 402 performs buffering and shock absorption to eliminate the impact force caused by the falling of the furnace charge; similarly, when the furnace charge falls into the second buffer tube 102 through the first buffer tube 101, the buffer assembly 4 designed in the second buffer tube 102 buffers the furnace charge again, thereby not only buffering the falling speed of the furnace charge to a certain extent, but also protecting the first buffer tube 101 and the second buffer tube 102. A shunt pipe 3 is bolted to one end of the bottom of the second buffer tube 102, through which the shunt pipe 3 can be used to divert the furnace charge. A shunt pipe 3 is provided on the other side of the inclined section of the first buffer tube 101. Observation port 5, a cover plate 501 is arranged on the outside of the observation port 5, and the cover plate 501 is threadedly connected to the observation port 5. The cover plate 501 is rotated to be removed so that the staff can observe the internal situation of the first buffer tube 101 from the observation port 5. The utility model has a simple structure. By arranging the buffer assembly 4 inside the first buffer tube 101 and the second buffer tube 102, while reducing the falling speed of the furnace charge, the first buffer tube 101 and the second buffer tube 102 are also protected to prevent the furnace charge from falling too fast and its impact force from damaging the inner wall of the feed tube 1, making it unusable.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feed pipe for a submerged arc furnace, comprising a feed pipe (1), characterized in that: The feed tube (1) comprises a first buffer tube (101) and a second buffer tube (102); the top of the first buffer tube (101) is fixedly connected to an introduction tube (2) by bolts; one end of the bottom of the second buffer tube (102) is fixedly connected to a diversion tube (3) by bolts; a buffer assembly (4) is provided at the bottom of the first buffer tube (101) and one side of the inside of the second buffer tube (102).

2. The feed pipe for a submerged arc furnace according to claim 1, characterized in that: One end of the top of the introduction pipe (2) is connected to an external ore-fired furnace silo.

3. The feed pipe for a submerged arc furnace according to claim 1, characterized in that: The first buffer tube (101) and the second buffer tube (102) are fixedly connected by bolts.

4. The feed pipe for a submerged arc furnace according to claim 1, characterized in that: The buffer assembly (4) comprises a buffer rod (401), and the top of each buffer rod (401) is fixedly connected to a buffer plate (402).

5. The feed pipe for a submerged arc furnace according to claim 4, characterized in that: A buffer spring (4011) is sleeved around the periphery of each of the plurality of buffer rods (401).

6. The feed pipe for a submerged arc furnace according to claim 1, characterized in that: An observation port (5) is provided on the other side of the inclined section of the first buffer tube (101), and a cover plate (501) is provided on the outside of the observation port (5).

7. The feed pipe for a submerged arc furnace according to claim 6, characterized in that: The cover plate (501) is threadedly connected to the observation port (5).

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