Slag breaking machine for RH furnace

Abstract

The utility model relates to the technical field of RH furnaces, in particular to a slag breaking machine of an RH furnace. Comprising a base, a moving trolley, a lifting device, a guide mechanism, a slag breaking frame, a slag breaking air cylinder and a slag breaking head. A guide rail is arranged on the base, and the moving trolley is installed on the guide rail and moves along the guide rail. The lifting device and the guide mechanism are installed on the moving trolley, the lifting device is connected with the slag breaking frame, and the lifting device drives the slag breaking frame to ascend and descend along the guide mechanism; a base of the slag breaking air cylinder is installed on the slag breaking frame, and the slag breaking head is connected with a piston rod of the slag breaking air cylinder. Slag breaking can be carried out on RH furnace molten steel, and the safety risk of manual slag breaking is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of RH furnaces, and specifically relates to a slag breaker for an RH furnace. Background Art

[0002] An RH furnace is a multifunctional vacuum refining steel refining furnace used for the refining treatment of molten steel. During the molten steel treatment process in the RH furnace, a slag shell often forms on the surface of the molten steel, seriously affecting the detection work such as sampling, temperature measurement, and oxygen determination of the molten steel. Therefore, slag breaking treatment must be carried out during the molten steel detection of the RH furnace.

[0003] Due to factors such as the uncertain space between the ladle and the vacuum nozzle of the RH furnace, large changes in the clearance value, complex slag composition, and easy adhesion, the manual slag breaking method has been adopted at home and abroad to break the slag of the molten steel in the RH furnace at the present stage. However, when manually breaking the slag, safety risks such as molten steel splashing and high-temperature roasting are faced. Therefore, slag breaking is one of the technical problems to be solved in the molten steel treatment process of the RH furnace. In addition, due to the need for automatic temperature measurement and sampling of the RH temperature measurement and sampling robot, there is an urgent need for a slag breaking device that does not require manual intervention at all. Content of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a slag breaker for an RH furnace, which can break the slag of the molten steel in the RH furnace and avoid the safety risks of manual slag breaking.

[0005] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0006] A slag breaker for an RH furnace includes a base, a mobile trolley, a lifting device, a guiding mechanism, a slag breaking frame, a slag breaking cylinder, and a slag breaking head; a guide rail is provided on the base, the mobile trolley is installed on the guide rail and moves along the guide rail; the lifting device and the guiding mechanism are installed on the mobile trolley, the lifting device is connected to the slag breaking frame, and the lifting device drives the slag breaking frame to lift along the guiding mechanism; the base of the slag breaking cylinder is installed on the slag breaking frame, and the slag breaking head is connected to the piston rod of the slag breaking cylinder.

[0007] Further, the mobile trolley includes a frame, wheels, and a mobile motor. The mobile motor and the wheels are installed on the frame, and the mobile motor is connected to the wheels and drives the wheels to rotate.

[0008] Further, the lifting device is an electro-hydraulic push rod. The base of the electro-hydraulic push rod is fixedly connected to the mobile trolley, and the rod head of the electro-hydraulic push rod is connected to the slag breaking frame.

[0009] Further, the slag breaking frame includes a first cross beam, a second cross beam, vertical beams, and inclined beams; the first cross beam and the second cross beam are horizontally arranged and parallel to each other; the vertical beams are vertically arranged and fixedly connected to the first cross beam and the second cross beam; the inclined beams are inclined in the horizontal direction and fixedly connected to the vertical beams and the second cross beam.

[0010] Further, the guiding mechanism includes a first guiding mechanism and a second guiding mechanism. The first guiding mechanism is vertically fixed on the top surface of the moving trolley. The first cross beam is connected to the first guiding mechanism and moves along the first guiding mechanism. The second guiding mechanism is horizontally fixed on the side of the moving trolley. The second guiding mechanism is provided with guiding wheels, and the vertical beam abuts against the guiding wheels and moves along the guiding wheels.

[0011] Further, it further includes a slag removal sleeve. The slag removal sleeve is fixed at the bottom end of the inclined beam, and the rod body of the slag breaking head passes through the slag removal sleeve, and the slag removal sleeve is used for slag removal.

[0012] Further, it further includes a buffer device. The buffer device includes a buffer seat and a buffer spring. One end of the buffer seat is connected to the piston rod of the slag breaking cylinder, and the other end is connected to the rod body of the slag breaking head. The buffer spring is sleeved on the rod body of the slag breaking head and is located between the buffer seat and the slag removal sleeve.

[0013] Compared with the prior art, the utility model has at least the following technical effects or advantages:

[0014] 1. The utility model is provided with a moving trolley. During slag breaking, the moving trolley moves forward to the slag breaking position first. According to the ladle clearance value, the lifting device adjusts the height of the slag breaking frame. The slag breaking frame moves to the slag breaking height along the guiding mechanism. The rear cavity of the slag breaking cylinder is inflated and the front cavity is exhausted, and the slag breaking head realizes slag breaking. After slag breaking is completed, the front cavity of the slag breaking cylinder is inflated and the rear cavity is exhausted, driving the slag breaking head to rise and return to the standby position, completing the slag breaking process. It can break the slag of the molten steel in the RH furnace, avoiding the safety risks of manual slag breaking and meeting the requirements of automatic temperature measurement and sampling of the RH temperature measurement and sampling robot.

[0015] 2. The utility model is provided with a slag removal sleeve at the bottom end of the slag breaking frame. After slag breaking is completed, when the slag breaking head rises, it passes through the slag removal sleeve, so that the steel slag adhered to the slag breaking head is detached, avoiding the adhesion of steel slag on the slag breaking head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure diagram of the utility model.

[0017] Figure 2 is a schematic front view of the structure of the utility model.

[0018] In the figure: 1 - base; 2 - moving motor; 3 - electro-hydraulic push rod; 4 - second guiding mechanism; 5 - slag breaking frame; 6 - slag breaking head; 7 - buffer device; 8 - slag breaking cylinder; 9 - first guiding mechanism; 10 - moving trolley; 11 - slag removal sleeve DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Embodiments of the present utility model will be described in detail below. To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part rather than all of the embodiments of the present utility model. The following description of at least one exemplary embodiment is actually only illustrative and in no way restricts the present utility model and its application or use. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0021] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] In the description of the present utility model, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be clear that for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0024] In addition, it should be noted that the use of words such as "first" and "second" to limit the components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above words have no special meanings and thus should not be construed as limiting the protection scope of the present utility model.

[0025]

Embodiment

[0026] As Figure 1 、 Figure 2 shown, a slag breaker for an RH furnace includes a base 1, a moving trolley 10, a lifting device, a first guiding mechanism 9, a second guiding mechanism 4, a slag breaking frame 5, a slag breaking cylinder 8, a slag breaking head 6, a buffer device 7, and a slag discharging sleeve 11.

[0027] A guide rail is provided on the base 1, and the moving trolley 10 is installed on the guide rail and moves along the guide rail. The moving trolley 10 includes a vehicle frame, wheels, and a moving motor 2. The moving motor 2 and the wheels are installed on the vehicle frame. The moving motor 2 is connected to the wheels and drives the wheels to rotate, thereby driving the moving trolley 10 to travel along the guide rail.

[0028] The lifting device is an electro-hydraulic push rod 3. The base of the electro-hydraulic push rod 3 is fixedly connected to the moving trolley 10, and the rod head of the electro-hydraulic push rod 3 is connected to the slag breaking frame 5.

[0029] The slag breaking frame 5 includes a first cross beam, a second cross beam, a vertical beam, and an inclined beam. The first cross beam and the second cross beam are horizontally arranged and parallel to each other. The first cross beam is located above, and the second cross beam is located below. The vertical beam is vertically arranged, with its top connected to the first cross beam and its bottom connected to the second cross beam. The inclined beam is inclined with respect to the horizontal direction and is fixedly connected to the second cross beam and the vertical beam.

[0030] The first guiding mechanism 9 consists of four guiding columns, which are vertically fixed at the four corners of the top surface of the moving trolley 10. The first crossbeam is fixed on the flat plate, and four through holes corresponding to the guiding columns are provided on the flat plate. The flat plate is sleeved on the four guiding columns. The rod head of the electro-hydraulic push rod 3 is fixed to the bottom surface of the flat plate. The telescopic movement of the electro-hydraulic push rod 3 drives the flat plate and the first crossbeam to move up and down along the four guiding columns, thereby driving the slag breaking frame 5 to move up and down along the first guiding mechanism 9. The second guiding mechanism 4 is horizontally fixed on the side of the moving trolley 10. The second guiding mechanism 4 is provided with guiding wheels, and the vertical beam abuts against the guiding wheels. The vertical beam moves along the guiding wheels, and thus the slag breaking frame 5 moves along the second guiding mechanism 4. The electro-hydraulic push rod 3 drives the slag breaking frame 5 to move up and down, and the first guiding mechanism 9 and the second guiding mechanism 4 play a guiding role in the up and down movement of the slag breaking frame 5.

[0031] The slag breaking cylinder 8 is installed on the inclined beam of the slag breaking frame 5. The slag breaking cylinder 8 is connected to the slag breaking head 6 through a buffer device 7, and the buffer device 7 is used for buffering. The main body part of the slag breaking head 6 is a cylindrical rod body, and the end part is a cone.

[0032] The slag discharging sleeve 11 is fixed at the bottom end of the inclined beam. The rod body of the slag breaking head passes through the slag discharging sleeve 11, and the slag discharging sleeve 11 is used for slag discharging. The buffer device 7 includes a buffer seat and a buffer spring. One end of the buffer seat is connected to the piston rod of the slag breaking cylinder, and the other end is connected to the rod body of the slag breaking head. The buffer spring is sleeved on the rod body of the slag breaking head and is located between the buffer seat and the slag discharging sleeve.

[0033] The working principle and working process of the present utility model are as follows:

[0034] During slag breaking, the moving motor 2 drives the moving trolley 10 to travel to the slag breaking position. According to the ladle clearance value, the electro-hydraulic push rod 3 drives the slag breaking frame 5 to move up and down to adjust the height of the slag breaking frame 5. The slag breaking frame 5 moves to the slag breaking height along the guiding mechanism. The rear cavity of the slag breaking cylinder 8 is inflated and the front cavity is exhausted, and the slag breaking head 6 realizes slag breaking. After slag breaking is completed, the front cavity of the slag breaking cylinder 8 is inflated and the rear cavity is exhausted, driving the slag breaking head 6 to rise and return to the standby position, completing the slag breaking process. After slag breaking is completed, when the slag breaking head 6 rises, it passes through the slag discharging sleeve 11, so that the steel slag adhered to the slag breaking head is separated, avoiding the adhesion of steel slag on the slag breaking head.

[0035] The present utility model can break the slag of the molten steel in the RH furnace, avoiding the safety risks of manual slag breaking and meeting the requirements of the RH temperature measurement and sampling robot for automatic temperature measurement and sampling.

[0036] The protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. An RH furnace slag breaker, characterized in that: It includes a base, a moving trolley, a lifting device, a guiding mechanism, a slag breaking frame, a slag breaking cylinder and a slag breaking head; A guide rail is provided on the base, and the moving trolley is installed on the guide rail and moves along the guide rail; The lifting device and the guiding mechanism are installed on the moving trolley. The lifting device is connected to the slag breaking frame, and the lifting device drives the slag breaking frame to lift along the guiding mechanism; The base of the slag breaking cylinder is installed on the slag breaking frame, and the slag breaking head is connected to the piston rod of the slag breaking cylinder.

2. The RH furnace slag breaker according to claim 1, characterized in that: The moving trolley includes a vehicle frame, wheels and a moving motor. The moving motor and the wheels are installed on the vehicle frame. The moving motor is connected to the wheels and drives the wheels to rotate.

3. The RH furnace slag breaker according to claim 1, characterized in that: The lifting device is an electro-hydraulic push rod. The base of the electro-hydraulic push rod is fixedly connected to the moving trolley, and the rod head of the electro-hydraulic push rod is connected to the slag breaking frame.

4. The RH furnace slag breaker according to claim 1, characterized in that: The slag breaking frame includes a first cross beam, a second cross beam, vertical beams and inclined beams; the first cross beam and the second cross beam are horizontally arranged and parallel to each other; the vertical beams are vertically arranged and fixedly connected to the first cross beam and the second cross beam; the inclined beams are inclined in the horizontal direction and fixedly connected to the vertical beams and the second cross beam.

5. The RH furnace slag breaker according to claim 4, characterized in that: The guiding mechanism includes a first guiding mechanism and a second guiding mechanism. The first guiding mechanism is vertically fixedly connected to the top surface of the moving trolley. The first cross beam is connected to the first guiding mechanism, and the first cross beam moves along the first guiding mechanism; the second guiding mechanism is horizontally fixedly connected to the side surface of the moving trolley. The second guiding mechanism is provided with guide wheels, and the vertical beam abuts against the guide wheels, and the vertical beam moves along the guide wheels.

6. The RH furnace slag breaker according to claim 4, characterized in that: It further includes a slag discharging sleeve. The slag discharging sleeve is fixedly connected to the bottom end of the inclined beam. The rod body of the slag breaking head passes through the slag discharging sleeve, and the slag discharging sleeve is used for slag discharging.

7. The RH furnace slag breaker according to claim 4, characterized in that: It further includes a buffer device. The buffer device includes a buffer seat and a buffer spring. One end of the buffer seat is connected to the piston rod of the slag breaking cylinder, and the other end is connected to the rod body of the slag breaking head. The buffer spring is sleeved on the rod body of the slag breaking head and is located between the buffer seat and the slag discharging sleeve.

Images