CN219689756U

CN219689756U - Broken coal detection device of blast furnace coal injection system

Info

Publication number: CN219689756U
Application number: CN202320994319.5U
Authority: CN
Inventors: 汤向东; 钱扬寅; 马敏飞; 周广强; 顾建清; 姚岳虎; 乔宁; 李雄飞; 钱俊锋
Original assignee: Jiangyin Xingcheng Special Steel Works Co Ltd
Current assignee: Jiangyin Xingcheng Special Steel Works Co Ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-09-15
Anticipated expiration: 2033-04-27

Abstract

The utility model discloses a coal breakage detection device of a blast furnace coal injection system, and relates to the technical field of blast furnace coal injection systems. The utility model comprises a mounting seat, a swing arm and a proximity sensor, wherein the mounting seat is fixed in a coal feeder and is vertically arranged right above a belt of the coal feeder, the upper part of the front side of the mounting seat is rotationally connected with a rotating rod through a hinged seat, the top end of the swing arm is fixed with the center of the rotating rod, the bottom end of the swing arm is rotationally connected with a rotating shaft, both ends of the rotating shaft extend to both sides of the swing arm and are respectively fixed with a roller, a tension spring is fixed between the rear side of the bottom end of the swing arm and the bottom edge of the mounting seat, and the top of the front side of the mounting seat is fixedly provided with a mounting rod. According to the utility model, the roller is designed to be pressed on the material layer, the roller and the swing arm are supported by the material layer, and whether the material layer exists on the belt or not is detected by detecting the distance between the swing arm and the proximity sensor, so that the coal breakage fault can be rapidly and accurately judged, the misjudgment condition of an operator is avoided, and the stable operation of equipment is effectively ensured.

Description

Broken coal detection device of blast furnace coal injection system

Technical Field

The utility model belongs to the technical field of blast furnace coal injection systems, and particularly relates to a coal breakage detection device of a blast furnace coal injection system.

Background

In the blast furnace coal injection and blanking system, the speed is fed back to a secondary meter by a speed measuring sensor, the secondary meter calculates the actual flow through the feedback speed, and the actual flow is compared with the given flow of a picture to control the given frequency converter, so that the belt speed of a coal feeder is controlled, and the outlet of the coal feeder is connected with a mill.

When the speed measuring sensor is in fault or the connecting shaft is broken, the actual flow is 0, an operator can misjudge that the coal is broken, but the coal feeder 50HZ is actually operated, so that a large amount of accumulated coal of the mill can be stopped, the coal breaking of the blast furnace is finally caused, the motor of the mill is damaged, the yield is influenced, and the equipment is damaged, so that the detection device capable of detecting whether the coal feeder is broken or not is designed, and the problem which needs to be solved by the operator in the field is solved.

Disclosure of Invention

The utility model aims to provide a coal breakage detection device of a blast furnace coal injection system, which can be pressed on a material layer through the design of a roller, supports the roller and a swing arm through the material layer, detects whether the material layer exists on a belt through detecting the distance between the swing arm and a proximity sensor, can rapidly and accurately judge coal breakage faults, eliminates the misjudgment condition of operators, and effectively ensures the stable operation of equipment.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a coal breakage detection device of a blast furnace coal injection system, which comprises a mounting seat, a swing arm and a proximity sensor;

the mounting seat is fixed in the coal feeder and is vertically arranged right above the belt of the coal feeder;

the upper part of the front side of the mounting seat is rotationally connected with a rotating rod through a hinged seat, the top end of the swing arm is fixed with the center of the rotating rod, the bottom end of the swing arm is rotationally connected with a rotating shaft, and two ends of the rotating shaft extend to two sides of the swing arm and are fixedly provided with rollers;

a tension spring is fixed between the rear side of the bottom end of the swing arm and the bottom edge of the mounting seat;

the top of the front side of the mounting seat is fixedly provided with a mounting rod, and the proximity sensor is fixed at the end part of the mounting rod and faces the swing arm.

Further, the installation pole includes horizontal pole portion and montant portion, connect through inclined rod portion between horizontal pole portion and the montant portion, horizontal pole portion tip is fixed with the mount pad, montant portion and mount pad parallel arrangement.

Further, a cushion block is fixed on the surface of the swing arm, which is close to the mounting seat, and the swing arm is arranged in parallel with the mounting seat through the cushion block.

Further, ring bodies are fixed at the center of the bottom edge of the mounting seat and at the rear side of the bottom end of the swing arm, and two ends of the tension spring are respectively fixed with the two ring bodies.

Further, the coal feeder also comprises an audible and visual alarm, and the audible and visual alarm and the proximity sensor are electrically connected with a controller of the coal feeder.

The utility model has the following beneficial effects:

according to the utility model, the roller is designed to be pressed on the material layer, the roller and the swing arm are supported by the material layer, whether the material layer exists on the belt is detected by detecting the distance between the swing arm and the proximity sensor, the coal breakage fault can be rapidly and accurately judged, the misjudgment condition of an operator is avoided, the stable operation of equipment is effectively ensured, the economic loss caused by the equipment fault is reduced, the accident handling time is shortened by the first time alarm, the working efficiency of personnel rush repair is improved, and the production is ensured.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a coal breakage detection device of a blast furnace coal injection system according to the present utility model;

FIG. 2 is a side view of the structure of the present utility model;

FIG. 3 is a schematic view of the assembled structure of the present utility model;

in the drawings, the list of components represented by the various numbers is as follows:

1-mount pad, 2-swing arm, 3-proximity sensor, 4-feeder, 5-feeder belt, 101-hinge support, 102-bull stick, 103-extension spring, 104-mount bar, 105-horizontal pole portion, 106-montant portion, 107-diagonal pole portion, 108-ring body, 201-cushion, 202-pivot, 203-cylinder.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the utility model discloses a coal breakage detection device of a blast furnace coal injection system, which comprises a mounting seat 1, a swing arm 2 and a proximity sensor 3;

the mounting seat 1 is fixed in the coal feeder 4 and is vertically arranged right above the coal feeder belt 5;

the upper part of the front side of the mounting seat 1 is rotationally connected with a rotating rod 102 through a hinged seat 101, the top end of a swing arm 2 is fixed with the center of the rotating rod 102, the bottom end of the swing arm 2 is rotationally connected with a rotating shaft 202, and two ends of the rotating shaft 202 extend to two sides of the swing arm 2 and are fixedly provided with rollers 203;

a tension spring 103 is fixed between the rear side of the bottom end of the swing arm 2 and the bottom edge of the mounting seat 1;

the top of the front side of the mounting seat 1 is fixed with a mounting rod 104, and the proximity sensor 3 is fixed at the end part of the mounting rod 104 and faces the swing arm 2.

As shown in fig. 1-2, the mounting rod 104 includes a cross rod portion 105 and a vertical rod portion 106, the cross rod portion 105 and the vertical rod portion 106 are connected through an inclined rod portion 107, an end portion of the cross rod portion 105 is fixed with the mounting seat 1, and the vertical rod portion 106 is arranged parallel to the mounting seat 1.

As shown in fig. 1-2, a cushion block 201 is fixed on a surface of the swing arm 2, which is close to the mounting seat 1, and the swing arm 2 is arranged in parallel with the mounting seat 1 through the cushion block 201.

As shown in fig. 1-2, ring bodies 108 are fixed at the center of the bottom edge of the mounting seat 1 and at the rear side of the bottom end of the swing arm 2, and two ends of the tension spring 103 are respectively fixed with the two ring bodies 108.

The intelligent coal feeder further comprises an audible and visual alarm, the audible and visual alarm and the proximity sensor 3 are electrically connected with a controller of the coal feeder 4, the audible and visual alarm is installed on site and used for warning, a switching power supply and an intermediate relay are additionally arranged in a control box, relay signals are input to a PLC and used for controlling a coal feeder belt, perfecting an upper computer picture and carrying out main control audible and visual alarm, and the PLC signals and the coal feeder belt are interlocked and controlled and carry out main control audible and visual alarm and picture alarm.

The working principle of the utility model is as follows: during normal blanking, the roller 203 is lifted by using the height of the material layer, so that an angle exists between the overturning of the swing arm 2 and the mounting seat 1, when a coal breakage condition occurs, as no coal dust is supported below the roller 203, the swing arm 2 is in a vertical state as shown in fig. 1-2, at the moment, the proximity sensor detects distance information and sends a coal breakage signal, the coal feeder belt 5 is immediately stopped to stop blanking, an on-site and main control audible and visual alarm is used for alarming, and a picture displays the coal breakage alarm.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. A broken coal detection device of a blast furnace coal injection system is characterized in that: comprises a mounting seat (1), a swing arm (2) and a proximity sensor (3);

the mounting seat (1) is fixed in the coal feeder (4) and is vertically arranged right above the coal feeder belt (5);

the upper part of the front side of the mounting seat (1) is rotationally connected with a rotating rod (102) through a hinged seat (101), the top end of the swing arm (2) is fixed with the center of the rotating rod (102), the bottom end of the swing arm (2) is rotationally connected with a rotating shaft (202), and two ends of the rotating shaft (202) extend to two sides of the swing arm (2) and are fixedly provided with rollers (203);

a tension spring (103) is fixed between the rear side of the bottom end of the swing arm (2) and the bottom edge of the mounting seat (1);

the top of the front side of the mounting seat (1) is fixedly provided with a mounting rod (104), and the proximity sensor (3) is fixed at the end part of the mounting rod (104) and faces the swing arm (2).

2. The coal breakage detection device of the blast furnace coal injection system according to claim 1, wherein the mounting rod (104) comprises a cross rod portion (105) and a vertical rod portion (106), the cross rod portion (105) and the vertical rod portion (106) are connected through an inclined rod portion (107), the end portion of the cross rod portion (105) is fixed with the mounting seat (1), and the vertical rod portion (106) is arranged in parallel with the mounting seat (1).

3. The coal breakage detection device of the blast furnace coal injection system according to claim 1, wherein a cushion block (201) is fixed on the surface of the swing arm (2) close to the installation seat (1), and the swing arm (2) is arranged in parallel with the installation seat (1) through the cushion block (201).

4. The coal breakage detection device of the blast furnace coal injection system according to claim 1, wherein ring bodies (108) are fixed at the center of the bottom edge of the installation seat (1) and at the rear side of the bottom end of the swing arm (2), and two ends of the tension spring (103) are respectively fixed with the two ring bodies (108).

5. The coal breakage detection device of a blast furnace coal injection system according to claim 1, further comprising an audible and visual alarm, wherein the audible and visual alarm and the proximity sensor (3) are electrically connected with a controller of a coal feeder (4).