CN216936387U

CN216936387U - Multistage grinding system is used in preparation of continuous casting covering slag

Info

Publication number: CN216936387U
Application number: CN202220716348.0U
Authority: CN
Inventors: 彭锴; 翟胜辉; 杨恒; 姚文方; 姜腾超
Original assignee: Luoyang Kefeng Metallurgy New Material Co ltd
Current assignee: Luoyang Kefeng Metallurgical New Materials Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-07-12
Anticipated expiration: 2032-03-30

Abstract

The utility model discloses a multi-stage grinding system for preparing continuous casting covering slag, which comprises a stirring barrel, a plurality of grinding machines and a vibrating screen, wherein the stirring barrel is communicated with a feeding pipe, the feeding pipe is led out of a plurality of branch pipelines in parallel, each branch pipeline is provided with a grinding machine, the tail ends of the branch pipelines are communicated with a same discharging pipe, and the discharging pipes are communicated with the vibrating screen; the stirring barrel feeds materials to the corresponding mill by gravity through the feeding pipe and the branch pipelines. The utility model can finish the replacement operation of the steel ball of the mill without stopping production, improve the production efficiency, solve the defect of the traditional machine halt replacement, and improve the grinding quality by returning the coarse grain slurry screened and filtered by the vibrating screen into the mill through the coarse material discharge pipe for grinding again.

Description

Multistage grinding system is used in preparation of continuous casting covering slag

Technical Field

The utility model relates to the technical field of continuous casting covering slag production equipment, in particular to a multistage grinding system for preparing continuous casting covering slag.

Background

As a functional material in the continuous casting process, the metallurgical functions in the crystallizer can be classified into the following five types: (1) secondary oxidation of the molten steel is prevented; (2) heat insulation and preservation; (3) absorbing non-metallic inclusions; (4) controlling the lubrication between the crystallizer and the casting blank; (5) improve the heat transfer between the crystallizer and the casting blank. The quality of the performance of the covering slag directly determines the quality of a casting blank, thereby influencing the production benefit. Need stir the grinding to the raw materials in the production preparation process of continuous casting covering slag, the tradition is for placing the grinding steel ball in a grinding vessel, grinds thick liquids through rotatory, but uses wearing and tearing easily appear in the steel ball after a period, influences the thick liquids quality after the steel ball wearing and tearing, need the shut down when changing the steel ball, wastes time and energy the increase cost, and the thick liquids quality after the grinding is low in addition.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the existing defects and provide a multistage grinding system for preparing continuous casting mold flux, which can complete the replacement operation of a steel ball of a mill without stopping production, improve the production efficiency and solve the defect of the traditional machine halt replacement.

In order to achieve the purpose, the utility model provides the following technical scheme: a multi-stage grinding system for preparing continuous casting covering slag comprises a stirring barrel, a plurality of mills and a vibrating screen, wherein the stirring barrel is communicated with a feeding pipe, the feeding pipe is led out in parallel to form a plurality of branch pipelines, each branch pipeline is provided with a mill, the tail ends of the branch pipelines are communicated with a same discharging pipe, and the discharging pipes are communicated with the vibrating screen; the mixing barrel feeds materials to the corresponding mills by gravity through the feeding pipe and the branch pipes.

Preferably, the vibrating screen is communicated with a slurry discharge pipe and a coarse material discharge pipe; the coarse material discharge pipe is communicated with the feeding pipe, and a storage tank and a centrifugal pump are mounted on the coarse material discharge pipe.

Preferably, the upper part of the stirring barrel is provided with a motor, and the motor drives a stirrer in the stirring barrel to rotate through a speed reducer.

Preferably, a feed valve and a discharge valve are arranged on each branch pipeline and correspondingly close to the inlet end and the outlet end of the mill.

Preferably, a gate valve is arranged at the end, close to the discharge port of the stirring barrel, of the feeding pipe.

Preferably, the coarse material discharge pipe is also provided with a stop valve, and the stop valve is positioned at the discharge port end of the centrifugal pump.

Compared with the prior art, the utility model has the beneficial effects that: according to the multi-stage grinding system for preparing the continuous casting covering slag, the stirring barrel feeds materials to the plurality of grinding machines by means of gravity, the plurality of grinding machines grind the raw materials, the plurality of grinding machines are arranged in parallel, when one grinding machine reaches the service life and needs to replace a worn steel ball, the feeding valve and the discharging valve on the corresponding branch pipeline of the grinding machine are closed, the other grinding machines are normally started, the replacement operation can be completed without stopping production, and the production efficiency is improved; in addition, coarse particle slurry screened and filtered by the vibrating screen flows back into the mill through a coarse material discharge pipe to be ground again, so that the grinding quality is improved.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1 motor, 2 agitator, 3 agitator, 4 feed pipes, 5 slide valves, 6 pipelines, 7 feed valves, 8 mills, 9 bleeder valves, 10 discharging pipes, 11 shale shakers, 12 slurry discharging pipes, 13 coarse material discharging pipes, 14 storage tanks, 15 centrifugal pumps, 16 stop valves.

Detailed Description

In the following description, the technical solutions of the present invention will be described with reference to the drawings of the embodiments of the present invention, and it should be understood that, if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present invention, and for convenience of describing the present invention, it is not necessary to indicate or imply that the indicated devices or elements have a specific orientation:

referring to fig. 1, the present invention provides a technical solution: a multi-stage grinding system for preparing continuous casting covering slag comprises a stirring barrel 2, a plurality of grinding machines 8 and a vibrating screen 11, wherein the stirring barrel 2 is communicated with a feeding pipe 4, the feeding pipe 4 leads out a plurality of branch pipelines 6 in parallel, each branch pipeline 6 is provided with a grinding machine 8, the tail ends of the branch pipelines 6 are communicated with a same discharging pipe 10, and the discharging pipes 10 are communicated with the vibrating screen 11; the stirring barrel 2 feeds materials to the corresponding mill 8 through the feeding pipe 4 and the branch pipelines 6 by means of gravity; a feed valve 7 and a discharge valve 9 are arranged on each branch pipeline 6 corresponding to the inlet and outlet ends close to the mill 8;

it can be understood that, agitator 2 is used for stirring the raw materials, agitator 2 relies on gravity to the 8 feeds of a plurality of mills, a plurality of mills 8 grind the raw materials, through setting up a plurality of mills 8 side by side, when a certain mill 8 reaches the life need to change the steel ball of wearing and tearing, close feed valve 7 and bleeder valve 9 on this mill 8 corresponds the branch pipe way 6, normally start other mill 8, need not to stop production and can accomplish the change operation, and the production efficiency is improved, the problem that need to stop production when having solved the tradition and adopting a mill to change the steel ball, waste time and energy and increase cost is solved

Furthermore, the vibrating screen 11 is communicated with a slurry discharge pipe 12 and a coarse material discharge pipe 13, the coarse material discharge pipe 13 is communicated with the feeding pipe 4, a storage tank 14 and a centrifugal pump 15 are mounted on the coarse material discharge pipe 13, slurry after being ground by the grinding machine 8 enters the vibrating screen 11, coarse particle slurry is screened out by the vibrating screen 11, the slurry is discharged through the slurry discharge pipe 12, the coarse particle slurry flows into the storage tank 14 through the coarse material discharge pipe 13, and then flows back to the grinding machine 8 through the centrifugal pump 15 for secondary grinding, so that the grinding quality is improved;

further, the upper part of the stirring barrel 2 is provided with a motor 1, the motor 1 drives a stirrer 3 in the stirring barrel 2 to rotate through a speed reducer, and the materials in the stirring barrel 2 are stirred;

further, a gate valve 5 is arranged on the feeding pipe 4 close to the discharge port end of the stirring barrel 2 and used for controlling feeding to a mill 8;

in addition, a stop valve 16 is arranged on the coarse material discharge pipe 13, and the stop valve 16 is positioned at the discharge port end of the centrifugal pump 15.

The utility model is not described in detail in the prior art, and it is apparent to a person skilled in the art that the utility model is not limited to details of the above-described exemplary embodiments, but that the utility model can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the scope of the claims concerned.

Claims

1. The utility model provides a preparation of continuous casting covering slag is with multistage grinding system, includes agitator (2), a plurality of mill (8) and shale shaker (11), its characterized in that: the stirring barrel (2) is communicated with a feeding pipe (4), a plurality of branch pipelines (6) are led out of the feeding pipe (4) in parallel, a grinding machine (8) is installed on each branch pipeline (6), the tail ends of the branch pipelines (6) are communicated with a same discharging pipe (10), and the discharging pipes (10) are communicated with a vibrating screen (11); the stirring barrel (2) feeds materials to the corresponding grinding machine (8) through the feeding pipe (4) and the branch pipes (6) by means of gravity.

2. The multistage grinding system for continuous casting mold flux preparation according to claim 1, characterized in that: the vibrating screen (11) is communicated with a slurry discharge pipe (12) and a coarse material discharge pipe (13); the coarse material discharge pipe (13) is communicated with the feeding pipe (4), and a storage tank (14) and a centrifugal pump (15) are mounted on the coarse material discharge pipe (13).

3. The multistage grinding system for continuous casting mold flux preparation according to claim 1, characterized in that: the upper portion of agitator (2) is equipped with motor (1), and agitator (3) in motor (1) drive agitator (2) through the reduction gear is rotatory.

4. The multistage grinding system for continuous casting mold flux preparation according to claim 1, characterized in that: and a feed valve (7) and a discharge valve (9) are arranged on each branch pipeline (6) and correspond to the inlet end and the outlet end close to the mill (8).

5. The multistage grinding system for continuous casting mold flux preparation according to claim 1, characterized in that: and a gate valve (5) is arranged on the feeding pipe (4) and close to the discharge port end of the stirring barrel (2).

6. The multistage grinding system for continuous casting mold flux preparation according to claim 2, characterized in that: the coarse material discharge pipe (13) is also provided with a stop valve (16), and the stop valve (16) is positioned at the discharge port end of the centrifugal pump (15).