CN215313040U

CN215313040U - Unloading type feeding system for vertical mill

Info

Publication number: CN215313040U
Application number: CN202120579992.3U
Authority: CN
Inventors: 郑小新; 李好哲; 王智洋
Original assignee: Hubei Gucheng Tailong Cement Co ltd
Current assignee: Hubei Gucheng Tailong Cement Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-12-28
Anticipated expiration: 2031-03-22

Abstract

The utility model relates to the technical field of vertical mill control, in particular to an unloading type feeding system for a vertical mill, which comprises a vertical mill, a buffer bin, a conveyor belt and a three-way valve, wherein the vertical mill, the buffer bin, the conveyor belt and the three-way valve are respectively controlled by the system and are not linked when the vertical mill is stopped, the three-way valve comprises an inverted Y-shaped three-way pipe, the three-way pipe comprises a main pipe, the upper end of the main pipe is communicated with the conveyor belt, the left side of the lower end of the main pipe is communicated with the vertical mill, the right side of the lower end of the main pipe is communicated with the buffer bin, and the right branch pipe is provided with a gate valve. The utility model is an improvement of the existing equipment, the construction is simple, the equipment load caused by sudden shutdown of the existing equipment is well solved, the equipment after the transformation is completed is linked during operation, and is not linked during shutdown, so that when the mill is suddenly shutdown, other equipment can continue to operate and unload, the failure rate of the equipment is reduced, and the service life of the equipment is prolonged.

Description

Unloading type feeding system for vertical mill

Technical Field

The utility model relates to the technical field of vertical mill control, in particular to an unloading type feeding system for a vertical mill.

Background

The broken stone material used for producing cement is generally ground into powder by a vertical mill, and during production, the vertical mill can stop the mill, a lifting machine and a raw material conveying belt simultaneously in order to protect the mill due to sudden failure of the vertical mill, so that the materials carried by the lifting machine and the raw material conveying belt are retained in equipment; on the one hand, equipment area material is shut down suddenly, causes very big impact load for equipment, and on the other hand, a large amount of materials are detained in equipment, under the action of gravity, also cause very big load for equipment, make equipment, especially speed reducer damage easily. In addition, when the equipment is shut down, the turning plate of the three-way valve is clamped by the raw materials and cannot be completely turned over, and the materials still enter the mill.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide an unloading type feeding system for a vertical mill, which removes a changeover valve plate of a three-way valve, arranges a valve on a branch pipe leading to a buffer bin, and simultaneously cuts off the linkage of the mill and other equipment so as to achieve the purpose that the mill is suddenly stopped and the other equipment can continuously run for unloading.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an unload formula charge-in system for standing mill, includes by the vertical mill of system control and not linkage when shutting down, surge bin, conveyer belt and intercommunication three-way valve respectively, the three-way valve includes the three-way pipe of the shape of falling Y, the three-way pipe include the upper end with the person in charge, the lower extreme left side of conveyer belt intercommunication with the left branch pipe of vertical mill intercommunication, lower extreme right side with the right branch pipe of surge bin intercommunication, the right branch pipe is provided with the slide valve.

Further, a funnel is arranged between the conveyor belt and the main pipe, a lifting machine is arranged at the bottom of the vertical grinding machine, and the top of the lifting machine is communicated with the funnel.

The utility model has the beneficial effects that: the utility model provides an unload formula charge-in system for vertical mill, its includes by system control respectively and when shutting down the vertical mill that does not link, surge bin, conveyer belt and intercommunication three's three-way valve, the three-way valve includes the three-way pipe of the shape of falling Y, the three-way pipe include the upper end with the person in charge, the lower extreme left side of conveyer belt intercommunication with the left branch pipe, the lower extreme right side of vertical mill intercommunication with the right branch pipe of surge bin intercommunication, the right branch pipe is provided with the slide valve. The utility model is an improvement of the existing equipment, the construction is simple, the equipment load caused by sudden shutdown of the existing equipment is well solved, the equipment after the transformation is completed is linked during operation, and is not linked during shutdown, so that when the mill is suddenly shutdown, other equipment can continue to operate and unload, the failure rate of the equipment is reduced, and the service life of the equipment is prolonged.

Drawings

FIG. 1 is a schematic structural view of an unloading type feeding system for a vertical mill of the present invention.

Description of reference numerals: 1-vertical mill, 2-buffer bin, 3-conveyor belt, 4-three-way valve, 41-three-way pipe, 411-main pipe, 412-left branch pipe, 413-right branch pipe, 42-gate valve, 5-hopper, 6-elevator.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific examples, which are not intended to limit the scope of the utility model.

As shown in fig. 1, the unloading type feeding system for a vertical mill of the present embodiment includes a vertical mill 1, a surge bin 2, a conveyor belt 3, and a three-way valve 4 communicating with the three, which are respectively controlled by the system and are not linked during shutdown, wherein the three-way valve 4 includes an inverted Y-shaped three-way pipe 41, the three-way pipe 41 includes a main pipe 411 whose upper end is communicated with the conveyor belt 3, a left branch pipe 412 whose lower end left side is communicated with the vertical mill 1, and a right branch pipe 413 whose lower end right side is communicated with the surge bin 2, and the right branch pipe 413 is provided with a gate valve 42.

The utility model is an improvement of the existing equipment, mainly remove the turning plate of the three-way valve 41 of the existing equipment, then set up the valve plate on the said right branch pipe 413, this embodiment adopts the gate valve 42, meanwhile, the said vertical mill 1, said conveyer belt 3, the said gate valve 42 are controlled separately by the system, and when the said vertical mill 1 stops suddenly, other operational equipments do not stop, and the said gate valve 42 is opened.

In addition, in order to control the speed and reliability of the material from the conveyor belt 3 entering the three-way pipe 41, a hopper 5 is provided between the conveyor belt 3 and the main pipe 411, and the material which is not ground in the vertical mill 1 and sinks to the bottom is lifted to the hopper 5 by a lifter 6 provided at the bottom of the vertical mill 1, and then flows back to the vertical mill 1 to be repeatedly ground.

The improved operation condition of the equipment is as follows, when the vertical mill 1 operates normally, the gate valve 42 is closed, and at the moment, the material directly enters the vertical mill 1; when the vertical mill 1 is suddenly stopped, the gate valve 42 is opened, the conveyor belt 3 and the elevator 6 continue to operate, because the vertical mill 1 is suddenly stopped, materials are accumulated in the vertical mill 1 until the intersection point of the three-way pipe 41, so that the materials can not enter the left branch pipe 412 any more, and simultaneously the materials of the right branch pipe 413 fall down, so that the subsequent materials of the conveyor belt 3 and the elevator 6 enter the buffer bin 2 along the right branch pipe 413, and the conveyor belt 3 and the elevator 6 are unloaded without stopping with the materials and damaging equipment.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An unloading feed system for a vertical mill, characterized by: the three-way valve comprises a vertical mill, a buffer bin, a conveyor belt and a three-way valve, wherein the vertical mill, the buffer bin, the conveyor belt and the three-way valve are respectively controlled by a system and are not linked when the machine is stopped, the three-way valve comprises an inverted Y-shaped three-way pipe, the three-way pipe comprises a main pipe, a lower end, a left branch pipe and a right branch pipe, the upper end of the main pipe is communicated with the conveyor belt, the lower end of the left branch pipe is communicated with the vertical mill, the lower end of the right branch pipe is communicated with the buffer bin, and the right branch pipe is provided with a gate valve.

2. An unloading feed system for a vertical mill according to claim 1, wherein: the conveyer belt with be provided with the funnel between the person in charge, the bottom of vertical mill is provided with the lifting machine, the top of lifting machine with the funnel intercommunication.