CN216554662U

CN216554662U - Blast furnace stokehole clay gun fast and slow fender implementation structure

Info

Publication number: CN216554662U
Application number: CN202123161517.3U
Authority: CN
Inventors: 朱卫锋; 顾锡伟; 沈波; 马卫峰
Original assignee: Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Current assignee: Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-05-17
Anticipated expiration: 2031-12-16

Abstract

The utility model provides a blast furnace front mud gun fast and slow gear implementing structure, which comprises an oil tank, a first control part, a second control part and a mud gun rotary oil cylinder, wherein the oil tank is connected with the first control part; the oil tank is provided with an oil return port; the oil tank is connected with an oil inlet of the mud gun rotation oil cylinder through a first oil inlet pipeline and a second oil inlet pipeline, and an oil outlet of the mud gun rotation oil cylinder is connected with the oil return port through a first oil return pipeline and a second oil return pipeline; the first control part comprises two first throttling valves which are respectively arranged on a first oil inlet pipeline and a first oil return pipeline, and the second control part comprises two second throttling valves which are respectively arranged on a second oil inlet pipeline and a second oil return pipeline. The original single-speed operation is changed into the operation capable of adjusting the speed, the speed requirements of the mud gun under different application scenes are met, the mud gun is prevented from being damaged, and the service life of the mud gun is prolonged.

Description

Blast furnace stokehole clay gun fast and slow fender implementation structure

Technical Field

The utility model belongs to the technical field of operation of a blast furnace front mud gun, and particularly relates to a structure for implementing a fast gear and a slow gear of the blast furnace front mud gun.

Background

Conventional blast furnace stokehold clay gun adopts single speed, only comes control switch by the remote controller, can not speed regulation, and when the big gun head of clay gun rotated to the big ditch position and stopped, appeared rocking by a wide margin, can cause the fracture to each bearing of clay gun and each link mechanism, be unfavorable for safety in production.

Therefore, it is necessary to develop a method for adjusting the speed of a mud gun, which can adjust the mud gun for more effective safe operation, change the original single-speed operation into the operation capable of adjusting the speed, meet the speed requirements of the mud gun under different application scenes, prevent the mud gun from being damaged, and prolong the service life of the mud gun.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems that the single-speed mud gun is easy to shake greatly when suddenly stopped and damages the whole bearing of the mud gun, the utility model provides a high-speed and low-speed gear implementation structure of the mud gun in front of a blast furnace.

The utility model adopts the following technical scheme:

a blast furnace front mud gun fast and slow gear implementation structure comprises an oil tank, a first control part, a second control part and a mud gun rotary oil cylinder; the oil tank is provided with an oil return port; the oil tank is connected with an oil inlet of the mud gun rotary oil cylinder through a first oil inlet pipeline and a second oil inlet pipeline, and an oil outlet of the mud gun rotary oil cylinder is connected with the oil return port through a first oil return pipeline and a second oil return pipeline; the first control part comprises two first throttling valves which are respectively arranged on a first oil inlet pipeline and a first oil return pipeline, and the second control part comprises two second throttling valves which are respectively arranged on a second oil inlet pipeline and a second oil return pipeline.

Furthermore, the first control part further comprises two first electro-hydraulic directional valves respectively arranged on the first oil inlet pipeline and the first oil return pipeline, and two first balance valves respectively arranged on the first oil inlet pipeline and the first oil return pipeline.

Furthermore, the second control part also comprises two second electro-hydraulic directional valves respectively arranged on the first oil inlet pipeline and the first oil return pipeline, and two second balance valves respectively arranged on the first oil inlet pipeline and the first oil return pipeline.

Furthermore, a first oil inlet pipeline, a second oil inlet pipeline, a first oil return pipeline and a second oil return pipeline in front of the mud gun rotary oil cylinder are respectively provided with a pressure measuring joint.

Furthermore, a valve is arranged in front of the oil tank.

The utility model has the beneficial effects that:

the original single-speed operation is changed into the operation capable of adjusting the speed, the speed requirements of the mud gun under different application scenes are met, the mud gun is prevented from being damaged, and the service life of the mud gun is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of the implementation of the fast and slow gears of the blast furnace stokehole clay gun of the utility model.

Description of reference numerals: 1. an oil tank; 11. a first oil inlet pipeline; 12. a second oil inlet pipeline; 2. an oil return port; 21. a first oil return line; 22. a second oil return line; 3. a first control unit; 31. a first electro-hydraulic directional valve; 32. a first counter-balance valve; 33. a first throttle valve; 4. a second control unit; 41. a second electro-hydraulic directional valve; 42. a second balancing valve; 43. a second throttle valve; 5. a clay gun rotary oil cylinder; 6. a pressure measuring joint; 7. and (4) a valve.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Further, in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1

A blast furnace front mud gun fast and slow gear implementation structure comprises an oil tank 1, a first control part 3, a second control part 4 and a mud gun rotary oil cylinder 5; the oil tank is provided with an oil return port 2; the oil tank 1 is connected with an oil inlet of the mud gun rotary oil cylinder 5 through a first oil inlet pipeline 11 and a second oil inlet pipeline 12, and an oil outlet of the mud gun rotary oil cylinder 5 is connected with the oil return port 2 through a first oil return pipeline 21 and a second oil return pipeline 22; the first control part 3 comprises two first throttle valves 33 which are respectively arranged on a first oil inlet pipeline 11 and a first oil return pipeline 21, the oil amount in the pipelines is controlled through the first throttle valves 33, the oil amount in the mud gun rotary oil cylinder 5 is further controlled and input, and the mud gun rotary oil cylinder 5 is finally controlled to move, the second control part 4 comprises two second throttle valves 43 which are respectively arranged on a second oil inlet pipeline 12 and a second oil return pipeline 22, the oil amount in the pipelines is controlled through the second throttle valves 43, the oil amount input into the mud gun rotary oil cylinder 5 is further controlled, the mud gun rotary oil cylinder 5 is finally controlled to move, the oil amounts in the pipelines are controlled through different throttle valves, and the switching between a fast gear and a slow gear is realized.

Specifically, the first control part 3 further includes two first electro-hydraulic directional valves 31 respectively disposed on the first oil inlet line 11 and the first oil return line 21, and two first balance valves 32 respectively disposed on the first oil inlet line 11 and the first oil return line 21.

Specifically, the second control part 4 further includes two second electro-hydraulic directional valves 41 respectively disposed on the first oil inlet line 11 and the first oil return line 21, and two second balance valves 42 respectively disposed on the first oil inlet line 11 and the first oil return line 21.

The electro-hydraulic directional valve is a hydraulic directional valve which is combined with an electromagnetic pilot valve into a whole, a valve core is pushed by pressure oil in a control oil way, the electro-hydraulic directional valve is a combination of the electromagnetic directional valve and a hydraulic directional valve, and the electro-hydraulic directional valve is a control valve which controls the action of the hydraulic directional valve by the electromagnetic directional valve and changes the flowing direction of fluid. The electro-hydraulic directional valve is mainly used in a hydraulic system with the flow rate exceeding the normal working allowable range of the electromagnetic directional valve, and is used for controlling the action of an actuating element or controlling the flowing direction of oil.

A balancing valve is a special function valve, since the medium (various flowable materials) has a large pressure difference or flow difference in various parts of the pipe or container, in order to reduce or balance the difference, a valve is installed between the corresponding pipes or containers to adjust the relative balance of pressures on both sides, or to achieve the balance of flow by means of flow division.

Specifically, the first oil inlet pipeline 11, the second oil inlet pipeline 12, the first oil return pipeline 21 and the second oil return pipeline 22 in front of the clay gun slewing oil cylinder 5 are all provided with pressure measuring connectors 6 for measuring oil pressure and realizing accurate control on the clay gun slewing oil cylinder 5.

Specifically, a valve 7 is arranged in front of the oil tank 1 and used for controlling oil outlet of the oil tank 1.

When the structure is implemented by using the fast and slow gears of the mud gun in front of the blast furnace, the first control part 3 is used as the fast gear, and the second control part 4 is used as the slow gear, the valve 7 is opened to enable the oil in the oil tank 1 to flow out, and the slow movement is needed, if the head of the baking gun rotates, the equipment maintenance rotates and the gun retreating moves, the second electro-hydraulic reversing valve 41 is opened, the oil enters the second control part 4, the flowing range of the oil is controlled through the second balance valve 42, the oil enters the mud gun rotary oil cylinder 5 to be driven after the flow is controlled by the second throttle valve 43, and the oil flows back to the oil return port 2 through the oil discharge port to complete the circulation. When rapid operation is needed, if the plugging port needs to be rotated, the first electro-hydraulic directional valve 31 is opened, the flow range of oil is controlled through the first balance valve 32, the oil enters the clay gun rotary oil cylinder 5 to be driven after the flow is controlled through the first throttle valve 33, and the oil flows back to the oil return port 2 through the oil discharge port to complete circulation.

When the structure is implemented by using the fast and slow gears of the blast furnace front mud gun, the first control part 3 can be used for the slow gear, and the second control part 4 can be used for the fast gear, and the oil quantity is adjusted.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may 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, which should be covered by the claims of the present invention.

Claims

1. A blast furnace stokehole mud gun fast and slow gear implementation structure is characterized by comprising an oil tank (1), a first control part (3), a second control part (4) and a mud gun rotary oil cylinder (5); the oil tank is provided with an oil return port (2); the oil tank (1) is connected with an oil inlet of the mud gun rotary oil cylinder (5) through a first oil inlet pipeline (11) and a second oil inlet pipeline (12), and an oil outlet of the mud gun rotary oil cylinder (5) is connected with the oil return port (2) through a first oil return pipeline (21) and a second oil return pipeline (22); the first control part (3) comprises two first throttling valves (33) which are respectively arranged on the first oil inlet pipeline (11) and the first oil return pipeline (21), and the second control part (4) comprises two second throttling valves (43) which are respectively arranged on the second oil inlet pipeline (12) and the second oil return pipeline (22).

2. The blast furnace stokehole mud gun fast-slow gear implementing structure according to claim 1, characterized in that the first control part (3) further comprises two first electro-hydraulic directional valves (31) respectively arranged on the first oil inlet pipeline (11) and the first oil return pipeline (21), and two first balance valves (32) respectively arranged on the first oil inlet pipeline (11) and the first oil return pipeline (21).

3. The blast furnace stokehole mud gun fast-slow gear implementation structure according to claim 1 or 2, characterized in that the second control part (4) further comprises two second electro-hydraulic directional valves (41) respectively arranged on the first oil inlet pipeline (11) and the first oil return pipeline (21), and two second balance valves (42) respectively arranged on the first oil inlet pipeline (11) and the first oil return pipeline (21).

4. The blast furnace stokehole mud gun fast and slow gear implementation structure according to claim 1, characterized in that a first oil inlet pipeline (11), a second oil inlet pipeline (12), a first oil return pipeline (21) and a second oil return pipeline (22) in front of the mud gun slewing cylinder (5) are provided with pressure measuring joints (6).

5. The blast furnace stokehole mud gun fast and slow stop implementing structure according to claim 1, characterized in that a valve (7) is arranged in front of the oil tank (1).