Converter slag scraper

Abstract

The utility model provides a converter slag scraper, which belongs to the field of oxygen lance steel slag removal and comprises slag scraping devices symmetrically arranged on two sides of an oxygen lance opening, each slag scraping device comprises a fixed base fixedly connected with a fixed structure, and a horizontally arranged cylinder is fixed on each fixed base through a cylinder seat. The end of a push rod of the air cylinder faces the oxygen lance opening, the end of the push rod penetrates through a guide base fixed to the fixed base, a mechanical clamp is fixed to the end of the push rod, and the push rod is in clearance fit or sliding fit with the guide base. A scraper is arranged on the mechanical clamp, and the scraper is detachably connected with the mechanical clamp. The slag scraping device is directly adopted to replace manual slag scraping, so that the working efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of converter steelmaking equipment, in particular to equipment for oxygen lance slag scraping, and in particular to a converter slag scraper. Background Art

[0002] During the converter smelting process, the converter oxygen lance will enter the converter from the oxygen lance mouth under the action of the oxygen lance lifting device. The molten iron in the converter hearth will splash, and the oxygen lance will inevitably stick to and hang some slag. In order to avoid excessive accumulation of slag and affect the normal use of the oxygen lance, the staff will use the time of each converter steel tapping and iron addition to rush to the oxygen lance mouth platform and use tools such as crowbars to manually clean the slag. The work intensity is high, the work efficiency is low, and the working environment is poor, so there is an urgent need for a slag scraping device to replace manual operation. Utility Model Content

[0003] In view of the above technical problems, a converter scraper is provided.

[0004] The technical means adopted by the utility model are as follows:

[0005] A converter scraper comprises scraper devices symmetrically arranged on both sides of an oxygen lance mouth, the scraper device comprises a fixed base fixedly connected to a fixed structure, a horizontally arranged cylinder is fixed on the fixed base through a cylinder seat, the end of a push rod of the cylinder faces the oxygen lance mouth, and the end of the push rod passes through a guide seat fixed on the fixed base and is fixed with a mechanical clamp, the push rod and the guide seat are clearance-fitted or slidingly fitted; a scraper is arranged on the mechanical clamp, and the scraper is detachably connected to the mechanical clamp;

[0006] During operation, the oxygen lance moves the slag sticking part to the height of the mechanical clamp under the action of the oxygen lance lifting device, the cylinders on both sides are pushed out at the same time, the end face of the scraper presses against the oxygen lance, the oxygen lance lifting device moves the oxygen lance, and the scraper scrapes the slag off the oxygen lance.

[0007] Preferably, the mechanical clamp includes a middle part and bending parts respectively located at both ends of the middle part, the middle of the middle part is fixedly connected to the end of the push rod, and the middle part is horizontally arranged and perpendicular to the push rod, the bending direction of the bending part is toward the oxygen gun, and the scraper is installed at the bending part.

[0008] Preferably, the scraper has a quadrilateral cross-section, with two diagonal portions arranged vertically, so that the scraper has a certain shear force at the top and bottom during the scraping process, making it easy to scrape off the slag.

[0009] Furthermore, each corner of the scraper adopts an arc transition to avoid stress concentration.

[0010] Preferably, the scraper has a height greater than its width.

[0011] Preferably, the top and bottom of the scraper have a hard alloy layer, and the end surface of the scraper has a wear-resistant layer.

[0012] Preferably, the mechanical pliers are provided with a through hole matched with the cross section of the scraper, the scraper is inserted into the through hole, and a pin shaft vertically passes through the through hole and the scraper to connect the scraper to the mechanical pliers.

[0013] Preferably, a protective plate is fixed on the fixed base, and the protective plate covers the fixed base, the cylinder seat, the cylinder, the push rod and the guide seat.

[0014] Preferably, a pit is arranged on the fixing structure, the fixing base is installed in the pit, and the protective plate covers the top of the pit.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. The utility model directly adopts a scraping device to replace manual scraping, which has higher working efficiency.

[0017] 2. The use of a fixed base, a cylinder seat and a guide seat ensures that the scraping device will not be damaged by the oxygen gun during the scraping process, thus protecting the scraping equipment.

[0018] 3. The scraper device is arranged in the pit and the structure of the protective plate ensures that the scraped slag will not damage the scraper device.

[0019] 4. The detachable connection between the scraper and the mechanical pliers enables easy replacement of the scraper.

[0020] Based on the above reasons, the utility model can be widely promoted in the fields of scrapers and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the structure of a converter slag scraper in a specific implementation manner of the utility model.

[0023] Figure 2 It is a cross-sectional view of a tool in a specific implementation manner of the utility model.

[0024] In the figure: 1. Oxygen gun nozzle; 2. Fixed base; 3. Cylinder seat; 4. Cylinder; 5. Push rod; 6. Guide seat; 7. Mechanical pliers; 8. Scraper. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] 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 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 be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0029] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0030] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0031] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0032] like Figures 1-2As shown, a converter scraper comprises a scraper device symmetrically arranged on both sides of an oxygen lance mouth 1, the scraper device comprises a fixed base 2 fixedly connected to a fixed structure, a horizontally arranged cylinder 4 is fixed on the fixed base 2 through a cylinder seat 3, the end of a push rod 5 of the cylinder 4 faces the oxygen lance mouth 1, and the end of the push rod 5 passes through a guide seat 6 fixed on the fixed base 2, and is fixed with a mechanical clamp 7, the push rod 5 and the guide seat 6 are clearance-fitted or slidingly fit; a scraper 8 is arranged on the mechanical clamp 7, and the scraper 8 is detachably connected to the mechanical clamp 7; the mechanical clamp 7 comprises a middle part and bending parts respectively located at both ends of the middle part, the middle of the middle part is fixedly connected to the end of the push rod 5, and the middle part is horizontally arranged and perpendicular to the push rod 5, the bending direction of the bending part faces the oxygen lance, and the scraper 8 is installed at the bending part. The scraper 8 has a quadrilateral cross section, in which two diagonal edges are arranged vertically, and the other two diagonal edges are arranged horizontally, forming a symmetrical structure. Each corner of the quadrilateral adopts an arc transition method, and the height of the scraper is greater than its width, which enables the upper and lower edges of the scraper to have a certain shear force during the scraping process, making it easy to scrape off the slag. The upper and lower edges of the scraper 8 are welded with a hard alloy layer, and the end face of the scraper has a wear-resistant layer. The mechanical pliers 7 is provided with a through hole that is compatible with the cross section of the scraper 8. The scraper is inserted into the through hole, and a pin shaft vertically passes through the through hole and the scraper 8 to connect the scraper 8 to the mechanical pliers 7.

[0033] A pit is arranged on the fixed structure, the fixed base 2 is installed in the pit, a protective plate (not shown) is fixed on the fixed base 2, the protective plate covers the fixed base 2, the cylinder seat 3, the cylinder 4, the push rod 5 and the guide seat 6, and the protective plate covers the top of the pit.

[0034] During operation, the oxygen lance moves the slag sticking part to the height of the mechanical clamp 7 under the action of the oxygen lance lifting device, and the mechanical clamps 7 on both sides are pushed out at the same time, the end face of the scraper 8 is against the oxygen lance, and the oxygen lance lifting device moves the oxygen lance, and the scraper scrapes the slag off the oxygen lance. The fallen slag falls back into the oxygen lance port 1 and returns to the converter.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A converter scraper, characterized in that: It comprises scraping devices symmetrically arranged on both sides of the oxygen gun mouth, the scraping device comprises a fixed base fixedly connected to the fixed structure, a horizontally arranged cylinder is fixed on the fixed base through a cylinder seat, the end of the push rod of the cylinder faces the oxygen gun mouth, and the end of the push rod passes through a guide seat fixed on the fixed base and is fixed with a mechanical clamp, the push rod and the guide seat are clearance-fitted or slidingly fitted; a scraper is arranged on the mechanical clamp, and the scraper is detachably connected to the mechanical clamp; The scraper has a quadrilateral cross section, with two diagonal portions arranged vertically; During operation, the oxygen lance moves the slag sticking part to the height of the mechanical clamp under the action of the oxygen lance lifting device, the cylinders on both sides are pushed out at the same time, the end face of the scraper presses against the oxygen lance, the oxygen lance lifting device moves the oxygen lance, and the scraper scrapes the slag off the oxygen lance.

2. A converter scraper according to claim 1, characterized in that: The mechanical clamp includes a middle part and bending parts respectively located at both ends of the middle part, the middle of the middle part is fixedly connected to the end of the push rod, and the middle part is horizontally arranged and perpendicular to the push rod. The bending direction of the bending part is toward the oxygen gun, and the scraper is installed at the bending part.

3. A converter scraper according to claim 1, characterized in that: Each corner of the scraper adopts arc transition.

4. A converter scraper according to claim 1, characterized in that: The scraper has a height greater than its width.

5. A converter scraper according to any one of claims 3 to 4, characterized in that: The top and bottom of the scraper are provided with a hard alloy layer, and the end surface of the scraper is provided with a wear-resistant layer.

6. A converter scraper according to claim 1, characterized in that: The mechanical clamp is provided with a through hole matched with the cross section of the scraper, the scraper is inserted into the through hole, and a pin shaft vertically passes through the through hole and the scraper to connect the scraper to the mechanical clamp.

7. A converter scraper according to claim 1, characterized in that: A protective plate is fixed on the fixed base, and the protective plate covers the fixed base, the cylinder seat, the cylinder, the push rod and the guide seat.

8. A converter scraper according to claim 7, characterized in that: A pit is arranged on the fixing structure, the fixing base is installed in the pit, and the protective plate covers the top of the pit.

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