CN217814206U

CN217814206U - Hydraulic system of excessive structure of vertical mill pressurization station

Info

Publication number: CN217814206U
Application number: CN202221177592.0U
Authority: CN
Inventors: 韩荣欢; 王翔; 陆敏; 吴明明; 丁浩南
Original assignee: Changzhou Yidun Hydraulic Technology Co ltd
Current assignee: Changzhou Yidun Hydraulic Technology Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-11-15
Anticipated expiration: 2032-05-17

Abstract

The utility model relates to a hydraulic system who grinds surplus structure of pressure station immediately, including motor pump group, valve unit and mill oil cylinder group, motor pump group passes through the valve unit and links to each other with the mill oil cylinder group, and motor pump group includes first motor pump group and second motor pump group, and the valve unit includes first valve unit and second valve unit, and first motor pump group links to each other with first valve unit, and second motor pump group links to each other with the second valve unit, and first valve unit, second valve unit link to each other with the mill oil cylinder group through high-pressure ball valve respectively, are provided with between first valve unit and the second valve unit and extremely empty surplus formula high-pressure ball valve. The utility model discloses an addding and rising surplus formula high pressure ball valve, solved the problem that the on-the-spot mill pressurized station continuous operation does not shut down and overhauls, guarantee mill normal continuous operation has realized not shutting down and has overhauld the processing trouble under the state.

Description

Hydraulic system of excessive structure of vertical mill pressurization station

Technical Field

The utility model relates to a hydraulic system technical field especially relates to a hydraulic system who rises surplus structure in immediately, grinding pressurization station.

Background

With the continuous development of cement production technology and the increasing size of cement industry, the roller type vertical mill is widely applied to the cement industry and becomes a trend, and the roller type vertical mill is generally accepted by people mainly because the roller type vertical mill has unique advantages in the aspects of working principle, grinding mechanism, equipment structure, system manufacturability and the like; such as: the process system is simple and convenient to control, can greatly utilize the kiln tail waste gas of the preheater kiln, saves energy consumption, has high grinding efficiency, has small floor area, simple process system, low capital investment, low energy consumption, low metal consumption and low noise compared with a ball milling system, has small weight compared with the ball mill in both the system and a single machine, and can save a large amount of metal materials. In recent years, roller mills have been widely used in domestic and foreign cement production.

A hydraulic system of a vertical mill pressurizing station in the existing cement industry is shown in figure 1, and a motor pump set is connected with a working oil port of a mill oil cylinder set through a control valve set and a high-pressure ball valve. However, in the hydraulic system, during long-term continuous operation, the motor-pump set or the control valve set may be damaged, and shutdown maintenance is required.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model discloses mainly grind the hydraulic system who presses station design one kind to cement trade and increase the structure immediately, can make motor pump package and valve unit reserve as reseing, solved the problem that the on-the-spot mill pressed station continuous operation does not shut down and overhauls.

The utility model discloses a realize through following technical scheme:

the utility model provides a hydraulic system who rises surplus structure in immediately grinding pressurization station, includes motor pump group, valve unit and mill oil cylinder group, motor pump group passes through the valve unit and links to each other with mill oil cylinder group, motor pump group includes first motor pump group and second motor pump group, the valve unit includes first valve unit and second valve unit, and first motor pump group links to each other with first valve unit, and second motor pump group links to each other with the second valve unit, and first valve unit, second valve unit link to each other with mill oil cylinder group through high-pressure ball valve respectively, are provided with between first valve unit and the second valve unit and rise surplus formula high-pressure ball valve.

The utility model discloses a preferred embodiment has set up four sets of mill oil cylinder groups, and mill oil cylinder group includes first mill oil cylinder group, second mill oil cylinder group, third mill oil cylinder group, fourth mill oil cylinder group, first control valves group links to each other with the working fluid port of first mill oil cylinder group, third mill oil cylinder group through first high-pressure ball valve, second high-pressure ball valve respectively, the second control valves group links to each other with the working fluid port of second mill oil cylinder group, fourth mill oil cylinder group through third high-pressure ball valve, fourth high-pressure ball valve respectively.

Correspondingly, in order to further guarantee that the mill can normally operate, be provided with the first surplus formula high pressure ball valve of rising between the inlet line of first valve bank, second valve bank, be provided with the second between the outlet line of first high pressure ball valve, third high pressure ball valve and rise surplus formula high pressure ball valve, it rises surplus formula high pressure ball valve to be provided with the third between the outlet line of second high pressure ball valve, fourth high pressure ball valve.

Compared with the prior art, the hydraulic system of the excess structure of the vertical mill pressurizing station has the advantages that through the specially designed excess high-pressure ball valve, when any one group of motor-pump sets fails, the excess high-pressure ball valve between the two control valve sets can be switched as a standby pump set to supply oil to the other group of control valve set at the first time; when any one group of control valve group breaks down, the high-pressure ball valve on the outlet pipeline of the group of control valve group is closed, the surplus high-pressure ball valve on the pipeline is opened, oil is supplied to the other two groups of mill oil cylinder groups, normal and continuous operation of the mill is guaranteed, and the maintenance and fault processing under the non-stop state are realized.

Drawings

FIG. 1 is a structural block diagram of a hydraulic system of a vertical mill pressurizing station without a surplus structure in the raw cement industry;

fig. 2 is a structural block diagram of a hydraulic system of a surplus structure of a vertical mill pressurizing station of the present invention;

fig. 3 is a schematic circuit diagram of the hydraulic system of the excessive structure of the vertical mill pressurizing station of the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined. The directional terms mentioned in the present invention include "up", "down", "front", and "forward

The terms "rear", "left", "right", "top", "bottom", "side", "end", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.

The hydraulic system of the excessive structure of the vertical mill pressurizing station as shown in fig. 2 and 3 comprises a motor-pump set, a control valve set and a mill oil cylinder set.

The motor-pump set comprises a first motor-pump set 1.1 and a second motor-pump set 1.2, the control valve set comprises a first control valve set 2.1 and a second control valve set 2.2, and the mill oil cylinder set comprises a first mill oil cylinder set 7.1, a second mill oil cylinder set 7.2, a third mill oil cylinder set 7.3 and a fourth mill oil cylinder set 7.4.

The first motor-pump group 1.1 is connected with the first control valve group 2.1, and the second motor-pump group 1.2 is connected with the second control valve group 2.2;

the first control valve group 2.1 is connected with working oil ports of a first mill oil cylinder group 7.1 and a third mill oil cylinder group 7.3 through a first high-pressure ball valve 3.1 and a second high-pressure ball valve 3.2; the second control valve group 2.2 is connected with working oil ports of a second mill oil cylinder group 7.2 and a fourth mill oil cylinder group 7.4 through a first high-pressure ball valve 3.3 and a second high-pressure ball valve 3.4;

be provided with the first surplus formula high pressure ball valve 4 of hypertenting between the inlet line of first valves 2.1, second valves 2.2, it hypertensions surplus formula high pressure ball valve 5 to be provided with the second between the outlet line of first high pressure ball valve 3.1, third high pressure ball valve 3.3, it hypertensions surplus formula high pressure ball valve 6 to be provided with the third between the outlet line of second high pressure ball valve 3.2, fourth high pressure ball valve 3.4.

The utility model discloses when considering that the motor pump package or the control valve group that appear in the long-term continuous operation process of mill damage the inefficacy, can switch over and increase surplus first excessive high-pressure ball valve 4, second excessive high-pressure ball valve 5, third excessive high-pressure ball valve 6 of design, keep the normal work of oil cylinder group, guarantee the normal operating of mill;

when any one group of motor-pump sets fails, a first high-pressure ball valve 3.1 between the first control valve set 2.1 and the second control valve set 2.2 can be switched as a standby pump set to supply oil to the other group of control valve sets at the first time;

when any one group of control valve set breaks down, the high-pressure ball valve on the outlet pipeline of the group of control valve set is closed, the second surplus high-pressure ball valve 5 and the third surplus high-pressure ball valve 6 on the pipeline are opened, oil is supplied to the other two groups of mill oil cylinder sets, the normal and continuous operation of the mill is guaranteed, and the maintenance and fault processing under the non-stop state are realized.

It should be noted that, the motor pump group and the control valve group in the present invention can be two sets, or more than two sets, and correspondingly, the mill oil cylinder group can also be more than four sets.

In the present application, relational terms such as first, second, third, fourth, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a hydraulic system who rises surplus structure in immediately, grinding pressurization station, includes motor pump package, valve unit and mill oil cylinder group, motor pump package passes through the valve unit and links to each other its characterized in that with mill oil cylinder group: the motor-pump set comprises a first motor-pump set and a second motor-pump set, the control valve set comprises a first control valve set and a second control valve set, the first motor-pump set is connected with the first control valve set, the second motor-pump set is connected with the second control valve set, the first control valve set and the second control valve set are respectively connected with the mill oil cylinder set through high-pressure ball valves, and excess high-pressure ball valves are arranged between the first control valve set and the second control valve set.

2. The hydraulic system of the excessive structure of the vertical mill pressurizing station according to claim 1, characterized in that: the grinding machine oil cylinder group comprises a first grinding machine oil cylinder group, a second grinding machine oil cylinder group, a third grinding machine oil cylinder group and a fourth grinding machine oil cylinder group, the first control valve group is respectively connected with working oil ports of the first grinding machine oil cylinder group and the third grinding machine oil cylinder group through a first high-pressure ball valve and a second high-pressure ball valve, and the second control valve group is respectively connected with the working oil ports of the second grinding machine oil cylinder group and the fourth grinding machine oil cylinder group through a third high-pressure ball valve and a fourth high-pressure ball valve.

3. The hydraulic system of the excessive structure of the vertical mill pressurizing station as claimed in claim 2, characterized in that: be provided with the first surplus formula high pressure ball valve of rising between the inlet line of first valve unit, second valve unit, it rises surplus formula high pressure ball valve to be provided with the second between the outlet line of first high pressure ball valve, third high pressure ball valve, it rises surplus formula high pressure ball valve to be provided with the third between the outlet line of second high pressure ball valve, fourth high pressure ball valve.