CN217757535U

CN217757535U - Steel slag quantitative feeding device applied to converter steelmaking production line

Info

Publication number: CN217757535U
Application number: CN202221597942.9U
Authority: CN
Inventors: 赵利
Original assignee: Fushun New Steel Co ltd
Current assignee: Fushun New Steel Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-11-08
Anticipated expiration: 2032-06-23

Abstract

The utility model provides a steel slag quantitative feeding device applied to a converter steelmaking production line, which comprises a support frame, wherein a roller way for conveying steel slag is arranged on the support frame, and the outer surface of the roller way is covered with a high-temperature resistant flat belt; a hopper is arranged above the roller way, a discharge port which can be opened and closed is arranged at the lower part of the hopper, and guard plates made of steel plates are fixed on the outer walls of two sides of the discharge port along the moving direction of the flat belt; and weighing mechanisms are arranged at the bottom of the hopper and outside the discharge hole. The utility model uses the high temperature resistant flat belt to replace the skirt belt and uses the guard plate made of steel plate to replace the guard plate made of rubber, thereby greatly prolonging the service life of the belt and the guard plate and saving a large amount of maintenance man-hours; through set up gravity sensor below the discharge gate of hopper, realized accurate pay-off, both avoided because too much rod mill overload operation of pay-off, also avoided because the utilization ratio of pay-off few rod mill is crossed low technical problem.

Description

Steel slag quantitative feeding device applied to converter steelmaking production line

Technical Field

The utility model relates to a metallurgical steelmaking technical field particularly, especially relates to a slag dosing device who uses on converter steelmaking production line.

Background

After the converter steelmaking is finished, the generated steel slag needs to be conveyed to a rod mill for grinding, and the purpose of grinding is to extract iron-containing substances which are not fully refined from the steel slag, return the steel slag to the furnace and refine the steel slag again so as to improve the utilization rate of raw materials. The feeder is a key device for conveying steel slag to a rod mill for grinding, the conventional feeder uses a skirt belt which is a belt with two wave-shaped side edges vertical to a belt main body, and the original design aims to prevent some finely-crushed steel slag from leaking at two sides of a conveyor belt by using two sides of the wave-shaped skirt; and rubber guard plates are arranged on two sides of the discharge end of the skirt edge belt to prevent steel slag from leaking from two sides of the end part of the circular arc roller way. However, when the steel slag is used, the steel slag has very high temperature and certain hardness, so that the skirt with folds and the steel slag can generate very large friction, the steel slag is very easy to damage in a high-temperature state, and the rubber protective plate is also easy to damage and needs to be replaced frequently; the belt is difficult to replace due to the skirt edge, twelve fixing bolts are firstly dismounted in a narrow working space, then rubber plates on two sides are taken down, a new skirt edge belt is replaced, and finally a new guard plate is mounted. Through statistics, the skirt belt and the rubber guard plate need to be replaced four times per month to ensure normal work, eight hours are needed totally, certain capital and man-hour investment is needed for replacing the skirt belt and the rubber guard plate, and the key is to influence the smooth production.

Meanwhile, each time the material is fed into the rod mill, the material feeding is controlled according to the experience of an operator, and the problem of too much or too little material feeding often occurs. When the feeding is excessive, the rod mill can run in an overload way, the service life of the rod mill can be shortened, and the grinding effect on the steel slag can be deteriorated; when the feeding amount is too small, the utilization rate of the rod mill is reduced, and the production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

According to the technical problems that the prior steel slag feeding device adopts a skirt-edge belt to convey steel slag, the belt and a protective plate are required to be frequently replaced to influence the working efficiency, and the steel slag cannot be quantitatively conveyed to a rod mill, the utility model provides a steel slag quantitative feeding device which is applied to a converter steelmaking production line and adopts a high-temperature-resistant flat belt to replace the skirt-edge belt, a steel plate to replace a rubber protective plate and a weighing mechanism arranged at a discharge port of a hopper, which comprises a support frame, wherein a roller bed for conveying the steel slag is arranged on the support frame, and the outer surface of the roller bed is covered with the high-temperature-resistant flat belt; a hopper is arranged above the roller way, a discharge port which can be opened and closed is arranged at the lower part of the hopper, and guard plates made of steel plates are fixed on the outer walls of two sides of the discharge port along the moving direction of the flat belt; and weighing mechanisms are arranged at the bottom of the hopper and outside the discharge hole.

Further, the flat belt is resistant to high temperatures.

Furthermore, the flat belt is a high-temperature resistant conveying belt which takes ethylene propylene diene monomer as a covering layer and takes high-temperature resistant canvas as a framework material.

Further, the weighing mechanism is a gravity sensor.

Further, the gravity sensor is a10 MM high-precision pressure type force measuring sensor with the model number of A1010.

Further, a gap is reserved between the guard plate and the flat belt, and the size of the gap is 3mm.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses an use high temperature resistant flat band replacement shirt rim belt, the backplate replacement of making with the steel sheet is with the backplate that rubber was made, prolonged the life of belt and backplate greatly, saved a large amount of man-hours of maintenance, also improved the utilization ratio of equipment simultaneously.

2. By arranging the gravity sensor below the discharge hole of the hopper, the weight of the steel slag conveyed to the rod mill at each time is accurately controlled, the technical problem that the utilization rate of the rod mill is too low due to too much feeding caused by overload operation of the rod mill and too little feeding caused by too little feeding is avoided, and the utilization rate of equipment is further improved.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a front view of the present invention.

FIG. 2 is a side view of FIG. 1

In the figure: 1. a roller bed; 1.1, flat belt; 2. a guard plate; 3. a hopper; 4. a weighing mechanism; 5. a rod mill; 6. a support frame.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

A steel slag quantitative feeding device applied to a converter steelmaking production line comprises a supporting frame 6, a roller way 1 for conveying steel slag is arranged on the supporting frame 6, and a high-temperature resistant flat belt 1.1 covers the outer surface of the roller way 1; a hopper 3 is arranged above the roller way 1, a discharge port capable of opening and closing is arranged at the lower part of the hopper 3, protective plates 2 made of steel plates are fixed on the outer walls of the two sides of the discharge port along the moving direction of the flat belt 1.1, the protective plates 2 play a role in preventing steel slag falling onto the flat belt 1.1 from leaking out from the two sides of the flat belt 1.1 from the hopper 3, and a gap of about 3mm is reserved between the bottom surface of the protective plates 2 and the flat belt 1.1 for preventing the protective plates 2 and the flat belt 1.1 from rubbing; a weighing mechanism 4 is arranged at the bottom of the hopper 3 and outside the discharge port, when the steel slag in the hopper 3 reaches a preset weight according to the weight displayed by the weighing mechanism 4, the steel slag stops being poured into the hopper 3, the discharge port is opened to enable the steel slag to fall onto the flat belt 1.1, the roller way 1 is started, and the flat belt 1.1 conveys the steel slag to a rod mill at the tail end of the roller way 1 for grinding.

In a preferred embodiment, the flat belt 1.1 is a high temperature resistant conveyor belt using ethylene propylene diene monomer as a covering layer and high temperature resistant canvas as a framework material, and the conveyor belt can carry a medium with a surface temperature not exceeding 220 ℃ and an internal temperature not exceeding 800 ℃.

As a preferred embodiment, the weighing mechanism 4 is a gravity sensor, which is a10 MM high precision pressure type load cell, model: A1010.

finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A steel slag quantitative feeding device applied to a converter steelmaking production line is characterized in that: the steel slag conveying device comprises a support frame (6), wherein a roller way (1) for conveying steel slag is arranged on the support frame (6), and a high-temperature-resistant flat belt (1.1) covers the outer surface of the roller way (1); a hopper (3) is arranged above the roller way (1), a discharge port which can be opened and closed is arranged at the lower part of the hopper (3), and guard plates (2) made of steel plates are fixed on the outer walls of two sides of the discharge port along the moving direction of the flat belt (1.1); and weighing mechanisms (4) are arranged at the bottom of the hopper (3) and outside the discharge hole.

2. The steel slag quantitative feeding device applied to the converter steelmaking line as claimed in claim 1, wherein: the flat belt (1.1) is resistant to high temperatures.

3. The steel slag quantitative feeding device applied to the converter steelmaking line as claimed in claim 1, wherein: the flat belt (1.1) is a high-temperature-resistant conveying belt taking ethylene propylene diene monomer as a covering layer and taking high-temperature-resistant canvas as a framework material.

4. The steel slag quantitative feeding device applied to the converter steelmaking line as claimed in claim 1, wherein: the weighing mechanism (4) is a gravity sensor.

5. The device of claim 4, wherein the device comprises: the gravity sensor is a10 MM high-precision pressure type force measuring sensor with the model number of A1010.

6. The steel slag quantitative feeding device applied to the converter steelmaking line as claimed in claim 1, wherein: a gap is reserved between the guard plate (2) and the flat belt (1.1), and the size of the gap is 3mm.