阅读说明：本技术 一种小型高炉无料钟设备布料装置及方法 (Material distribution device and method for small blast furnace bell-less equipment ) 是由 赵庆辉 付光明 樊金锋 于 2019-11-18 设计创作，主要内容包括：本发明涉及一种小型高炉无料钟设备布料装置及方法,属于冶金行业高炉炉顶设备技术领域。技术方案是：布料钟体外侧壳体(14)与布料钟体(15)之间的空隙形成布料通道；布料钟体外侧壳体(14)通过多个拉杆(10)固定在高炉炉头外壳内,所述拉杆(10)的下端通过球形万向连接装置(13)与布料钟体外侧壳体(14)转动连接,拉杆(10)的上端从高炉炉头外壳(2)上穿出并与拉杆驱动装置(11)驱动连接。本发明的有益效果是：结构简单,检修方便,使用寿命长,能够方便小型高炉的布料,满足高炉操作要求,提升高炉操作指标。(The invention relates to a distributing device and a distributing method for small blast furnace bell-less equipment, and belongs to the technical field of blast furnace top equipment in the metallurgical industry. The technical scheme is as follows: a gap between the outer shell (14) of the distributing bell body and the distributing bell body (15) forms a distributing channel; the outer shell (14) of the distributing clock body is fixed in the blast furnace end shell through a plurality of pull rods (10), the lower ends of the pull rods (10) are rotatably connected with the outer shell (14) of the distributing clock body through spherical universal connecting devices (13), and the upper ends of the pull rods (10) penetrate out of the blast furnace end shell (2) and are in driving connection with a pull rod driving device (11). The invention has the beneficial effects that: simple structure, it is convenient to overhaul, long service life can make things convenient for the cloth of small-size blast furnace, satisfies blast furnace operation requirement, promotes blast furnace operation index.)

1. The utility model provides a small-size blast furnace does not have bell equipment distributing device which characterized in that: comprises a pull rod (10), a pull rod driving device (11), a sealing device (12), a spherical universal connecting device (13), a distributing clock outer side shell (14) and a distributing clock body (15); the outer shell (14) of the distributing clock body is in a cone cylinder shape, the distributing clock body (15) is in a round table shape, the outer shell (14) of the distributing clock body is sleeved outside the distributing clock body (15), the distributing clock body (15) is fixedly connected with the outer shell (14) of the distributing clock body through a rib plate, and a distributing channel is formed by a gap between the outer shell (14) of the distributing clock body and the distributing clock body (15); the distributing clock body outer side shell (14) is fixed in a blast furnace end shell through a plurality of pull rods (10), the pull rods (10) are arranged along the circumferential direction of the distributing clock body outer side shell (14), the lower ends of the pull rods (10) are rotatably connected with the distributing clock body outer side shell (14) through spherical universal connecting devices (13), the upper ends of the pull rods (10) penetrate out of the blast furnace end shell (2) and are in driving connection with pull rod driving devices (11), and sealing devices (12) are arranged between the pull rods (10) and the blast furnace end shell (2).

2. The distributing device of small-sized blast furnace bell-less equipment according to claim 1, characterized in that: the spherical universal connecting device (13) comprises a sphere (20) fixed at the lower end of the pull rod (10) and a cavity body which is fixed on the outer shell (14) of the cloth clock body and matched with the sphere (20).

3. The distributing device of small-sized blast furnace bell-less equipment according to claim 1, characterized in that: the pull rods (10) are all arranged in parallel with the central lines of the outer shell (14) of the distributing bell body and the distributing bell body (15).

4. The distributing device of small-sized blast furnace bell-less equipment according to claim 1, characterized in that: the pull rod driving device (11) is electrically driven or hydraulically driven.

5. The small-sized blast furnace bell-less equipment fixing and distributing device according to claim 1 or 2, characterized in that: the number of the pull rods (10) is three; the outer shell (14) of the distributing bell body and the distributing bell body (15) are of split assembly structures.

6. A material distribution method of small-sized blast furnace bell-less equipment, which is carried out by adopting the material distribution device of any one of claims 1 to 5, and comprises the following steps: if the edge of the blast furnace needs to be distributed with more materials, the pull rods are lifted at the same time, the distributing bell body is in a high position, and more materials falling from the distributing bell body can be distributed on the edge of the blast furnace; if the material needs to be distributed in the center of the blast furnace, the pull rods are lowered at the same time, the material distributing bell body is in a low position, and more material falling from the material distributing bell body can be distributed near the center of the blast furnace; when the material is distributed to one direction of the blast furnace, one or two pull rods are kept to be not moved, other pull rods are moved, the distributing bell body can incline to the distributing direction, and more material falling from the distributing bell body can be distributed in the distributing direction, so that the operating requirement of the blast furnace is met.

Technical Field

The invention relates to a distributing device and a distributing method for small blast furnace bell-less equipment, and belongs to the technical field of blast furnace top equipment in the metallurgical industry.

Background

At present, in the technical field of charging of blast furnace top equipment in the metallurgical industry, bell-less charging equipment is widely used in large blast furnaces due to excellent material distribution performance and sealing performance, while small blast furnaces, such as blast furnaces below 200m3, have not very large function due to the excellent material distribution performance of bell-less rotary distributor, and meanwhile, because the bell-less rotary distributor is expensive in manufacturing cost, the furnace top equipment still adopts the traditional bell-less furnace top equipment; the traditional blast furnace with the big bell and the small bell has a plurality of defects, such as poor sealing performance of furnace top equipment, short service cycle of the big bell and the small bell, poor production index of the blast furnace, more coal gas and dust leaked from the furnace top area, serious environmental pollution, harm to personal safety and the like; in order to ensure that a blast furnace below 200m3 adopts bell-less equipment, a material distribution device suitable for the bell-less equipment of a small blast furnace needs to be developed, not only needs to meet the basic material distribution requirement of the small blast furnace, but also needs to have low manufacturing cost, and is a necessary condition for the bell-less top equipment of the small blast furnace.

Disclosure of Invention

The invention aims to provide a distributing device and a distributing method for bell-less equipment of a small-sized blast furnace, which can meet the basic distributing requirement of the small-sized blast furnace, have low manufacturing cost and solve the problems in the background technology.

The technical scheme of the invention is as follows:

a small-sized blast furnace bell-less equipment distributing device comprises a pull rod, a pull rod driving device, a sealing device, a spherical universal connecting device, a distributing bell outer shell and a distributing bell body; the outer shell of the distributing clock body is in a cone cylinder shape, the distributing clock body is in a round table shape, the outer shell of the distributing clock body is sleeved outside the distributing clock body, the distributing clock body is fixedly connected with the outer shell of the distributing clock body through a rib plate, and a distributing channel is formed in a gap between the outer shell of the distributing clock body and the distributing clock body; the shell on the outer side of the distributing clock body is fixed in a shell of a blast furnace end through a plurality of pull rods, the pull rods are arranged along the circumferential direction of the shell on the outer side of the distributing clock body, the lower ends of the pull rods are rotatably connected with the shell on the outer side of the distributing clock body through spherical universal connecting devices, the upper ends of the pull rods penetrate out of the shell of the blast furnace end and are in driving connection with a pull rod driving device, and a sealing device is arranged between the pull rods and the shell of the blast furnace end.

The spherical universal connecting device comprises a sphere fixed at the lower end of the pull rod and a cavity body fixed on the shell outside the distributing clock body and matched with the sphere.

The pull rods are all arranged in parallel with the center lines of the outer shell of the distributing clock body and the distributing clock body.

The pull rod driving device is electrically driven or hydraulically driven.

The number of the pull rods is three. The shell on the outer side of the distributing clock body is fixed in the shell of the blast furnace end through three pull rods, the three pull rods are arranged along the circumferential direction of the shell on the outer side of the distributing clock body, the central angle between every two adjacent pull rods is 90 degrees, the pull rods can move up and down under the action of the driving device, the function of multi-directional distributing in the small blast furnace is achieved, and the distributing requirement of the small blast furnace is met.

The outer shell of the distributing clock body and the distributing clock body are of split assembly structures.

A material distributing method of small-sized blast furnace bell-less equipment is carried out by adopting the material distributing device, and comprises the following steps: if the edge of the blast furnace needs to be distributed with more materials, the pull rods are lifted at the same time, the distributing bell body is in a high position, and more materials falling from the distributing bell body can be distributed on the edge of the blast furnace; if the material needs to be distributed in the center of the blast furnace, the pull rods are lowered at the same time, the material distributing bell body is in a low position, and more material falling from the material distributing bell body can be distributed near the center of the blast furnace; when the material is distributed to one direction of the blast furnace, one or two pull rods are kept to be not moved, other pull rods are moved, the distributing bell body can incline to the distributing direction, and more material falling from the distributing bell body can be distributed in the distributing direction, so that the operating requirement of the blast furnace is met.

The innovation points of the invention are as follows: firstly, the double-layer conical structure is adopted, so that the strength is high and the service life is long; secondly, the bell-shaped distributing device adopts a spherical universal connecting device, and three pull rods with central angles of 90 degrees move up and down under the action of a pull rod driving device, so that the distributing function in a fixed area in the circumferential direction of the blast furnace is realized, and the operation requirement of the blast furnace is met; thirdly, the outer shell of the distributing clock body and the distributing clock body adopt split structures.

The invention has the beneficial effects that: the basic material distribution requirement of the small-sized blast furnace can be met, and necessary conditions are provided for the small-sized blast furnace to adopt bell-less furnace top equipment; secondly, simple structure, the body all adopts the components of a whole that can function independently structure outside the cloth clock body and the cloth clock body, is convenient for change, can improve equipment life, improves the surrounding environment, can make things convenient for the cloth of small-size blast furnace, can realize blast furnace edge cloth, central cloth and appointed regional cloth function moreover, satisfies blast furnace operation requirement, promotes blast furnace operation index.

Drawings

FIG. 1 is a sectional view showing a state of use of the present invention;

FIG. 2 is an external view of the present invention in use;

FIG. 3 is a schematic cross-sectional view of an embodiment of the present invention;

FIG. 4 is a schematic top view of the present invention;

in the figure: the invention relates to a material distributing device (also called a bell-type distributor) 1, a blast furnace end shell 2, a corrugated compensator 3, a lower sealing valve 4, a lower sealing material blocking valve 5, a material tank 6, an upper sealing valve 7, an upper sealing material blocking valve 8, a material receiving hopper 9, a pull rod 10, a pull rod driving device 11, a sealing device 12, a spherical universal connecting device 13, a distributing bell outer side shell 14, a distributing bell body 15, an access door 16, a gauge rod pipe 17, an ignition hole 18, a connecting bolt 19 and a sphere 20.

Detailed Description

The invention is further illustrated by way of example in the following with reference to the accompanying drawings.

A small-sized blast furnace bell-less equipment distributing device comprises a bell-type distributing device 1, a blast furnace end shell 2, a corrugated compensator 3, a lower sealing valve 4, a lower sealing blocking material valve 5, a charging bucket 6, an upper sealing valve 7, an upper sealing blocking material valve 8 and a receiving hopper 9, wherein the bell-type distributing device 1 is arranged in the blast furnace end shell 2, and the lower sealing valve 4, the lower sealing blocking material valve 5, the charging bucket 6, the upper sealing valve 7, the upper sealing blocking material valve 8 and the receiving hopper 9 are sequentially arranged above the blast furnace end shell 2; the bell-type distributing device 1 comprises a pull rod 10, a pull rod driving device 11, a sealing device 12, a spherical universal connecting device 13, a distributing bell outer side shell 14 and a distributing bell body 15; the outer shell 14 of the distributing clock body is in a cone cylinder shape, the distributing clock body 15 is in a round table shape, the outer shell 14 of the distributing clock body is sleeved outside the distributing clock body 15, the distributing clock body 15 is fixedly connected with the outer shell 14 of the distributing clock body through a rib plate, and a distributing channel is formed in a gap between the outer shell 14 of the distributing clock body and the distributing clock body 15; the outer shell 14 of the distributing bell body is fixed in a blast furnace end shell through a plurality of pull rods 10, the pull rods 10 are arranged along the circumferential direction of the outer shell 14 of the distributing bell body, the lower ends of the pull rods 10 are rotatably connected with the outer shell 14 of the distributing bell body through spherical universal connecting devices 13, the upper ends of the pull rods 10 penetrate out of the blast furnace end shell 2 and are in driving connection with pull rod driving devices 11, and sealing devices 12 are arranged between the pull rods 10 and the blast furnace end shell 2.

The ball universal connecting device 13 comprises a ball 20 fixed at the lower end of the pull rod 10 and a cavity body matched with the ball 20 and fixed on the outer shell 14 of the distributing clock body.

The plurality of tie rods 10 are all arranged in parallel with the center lines of the outer shell 14 of the cloth bell and the cloth bell 15.

The pull rod driving device 11 is electrically driven or hydraulically driven.

Referring to the attached drawings 1-4, in this embodiment, the blast furnace end further includes a blast furnace end shell 2, a corrugated compensator 3, a lower sealing valve 4, a lower sealing material valve 5, a charging bucket 6, an upper sealing valve 7, an upper sealing material valve 8 and a receiving hopper 9, the invention (also called a bell-type distributor) 1 is arranged in the blast furnace end shell 2, and the corrugated compensator 3, the lower sealing valve 4, the lower sealing material valve 5, the charging bucket 6, the upper sealing valve 7, the upper sealing material valve 8 and the receiving hopper 9 are sequentially arranged above the blast furnace end shell 2.

The outer shell 14 of the conical-cylinder-shaped distributing clock body is provided with openings at the bottom and the top, and the width of the opening at the top is larger than that of the corrugated compensator 3 at the top of the blast furnace end shell 2.

The number of the pull rods 10 is three.

The outer shell 14 of the distributing bell body and the distributing bell body 15 are of split assembly structures.

The shell of the blast furnace end is composed of an upper part and a lower part, wherein the upper part is in a frustum shape, and the lower part is in a cylindrical shape. An access door is arranged at the upper part of the shell of the blast furnace end. The bell-type distributor 1 is arranged below a lower sealing valve 4 of the blast furnace and is positioned inside a shell of a furnace end of the blast furnace.

The distributing bell body outer shell 14 and the distributing bell body 15 of the bell-type distributing device are both cast or welded structural members and both adopt a split structure form, and the distributing bell body outer shell 14 and the distributing bell body 15 are composed of a plurality of fan-shaped sections through connecting bolts and are replaced through an access door on the blast furnace end shell 2; various wear-resistant materials such as wear-resistant cast iron, wear-resistant alloy, wear-resistant ceramic and the like can be embedded in the surface of the cloth bell body 15; the shell on the outer side of the distributing clock body is fixed in the shell of the blast furnace end through three pull rods, the three pull rods are arranged along the circumferential direction of the shell on the outer side of the distributing clock body, the central angle between every two adjacent pull rods is 90 degrees, the pull rods can move up and down under the action of the driving device, the function of multi-directional distributing in the small blast furnace is achieved, and the distributing requirement of the small blast furnace is met. The upper end of the pull rod 10 extends out of the blast furnace end shell 2, a sealing device 12 is arranged between the blast furnace end shell 2 and the pull rod 10, the pull rod 10 is connected with a pull rod driving device 11 to realize up-and-down movement, and the pull rod driving device 11 can be an electric device or a hydraulic control device; the lower end of the pull rod 10 is fixedly connected with the ball body 20 of the cavity body of the spherical universal connecting device, so that the rotation in any direction can be realized; the spherical universal connecting device 13 is not limited to the forms of forging, casting and the like, and the inside of the joint of the spherical universal connecting device 13 and the ball 20 at the bottom of the pull rod 10 is a spherical cavity structure. An access door 16 is arranged on the shell 2 of the blast furnace end, which is convenient for the maintenance of the distributing clock body 15.

The charging sequence and process of the small blast furnace bell-less top equipment are basically consistent with those of the large blast furnace, the difference is that the small blast furnace is not provided with a rotary distributor and is replaced by a bell-type distributing device, the normal installation and working height of the bell-type distributing device are basically consistent with the position of opening and discharging the large bell of the small blast furnace top equipment, the position can be adjusted up and down by taking the position as a reference, if the edge of the blast furnace is required to be distributed with more material, three pull rods are simultaneously lifted, the distributing bell body is in a high position, and more material which slides down from the distributing bell body can be arranged at the edge of the blast furnace; if more material is required to be distributed in the center of the blast furnace, the three pull rods are lowered at the same time, the material distributing clock body is in a low position, and more material falling from the material distributing clock body is arranged close to the center of the blast furnace; when the material is distributed to one position of the blast furnace, one or two pull rods can be kept to be not moved, two or one pull rod is moved, the material distributing bell body can incline to the material distributing position, and more material falling from the material distributing bell body can be distributed in the position, so that the operation requirement of the blast furnace is met.