Replacing device of converter sliding plate slag stopping mechanism

Abstract

The utility model provides a replacing device of a converter sliding plate slag stopping mechanism. The replacing device comprises an operation cabin and a lifting appliance, the operation cabin comprises a bottom platform and a protective ceiling; the protective ceiling is installed on the bottom platform through the supporting net frame. A groove attached to a converter shell is formed in the front end of the bottom platform. The lifting appliance comprises a main guide rail and an electric hoist; lifting lugs are arranged on the protective ceiling and / or fork grooves are formed in the bottom platform; when the converter sliding plate slag stopping mechanism needs to be replaced, only the replacing device needs to be moved to the converter front platform, the groove in the front end of the bottom platform is attached to a converter shell below the converter sliding plate slag stopping mechanism, and then a replacing worker stands on the bottom platform to complete replacement of the converter sliding plate slag stopping mechanism; the bottom platform is in tight butt joint with the converter shell, so that the situation that replacement personnel fall from a gap and are hurt is avoided; and the supporting screen frames on the left side and the right side not only can block splashed steel slag, but also can play a role in ventilation, so that the operation comfort of replacement personnel is improved.

Description

Technical Field

[0001] The utility model belongs to the field of converter parts replacement, and in particular relates to a replacement device for a converter slide plate slag blocking mechanism. Background Art

[0002] The converter slide slag retaining mechanism controls the size of the converter tapping port through the movement of the slide to achieve slag-steel separation during tapping and prevent slag from entering the ladle and affecting the cleanliness of the molten steel. The converter slide slag retaining mechanism needs to be regularly maintained and replaced according to the production process requirements and on-site test conditions. The replacement of the converter slide slag retaining mechanism is usually completed on the furnace front platform, but there is a 1.5m gap between the furnace front platform and the converter shell, and the distance between the furnace front platform and the ground is about 11m. Therefore, it is very easy for the replacement personnel to slip and fall during operation. In addition, after the converter has been used for a period of time, a certain amount of slag will accumulate on its smoke hood. These slags may fall onto the converter shell under the action of their own weight, and deflect and rebound under the action of the converter shell, causing splashing, thereby injuring the replacement personnel, which poses a great safety hazard. Utility Model Content

[0003] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a replacement device for a converter slide slag blocking mechanism to improve the replacement safety of replacement personnel.

[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides a replacement device for the slag blocking mechanism of a converter slide, comprising an operating cabin and a sling; the operating cabin comprises a bottom platform and a protective ceiling; supporting mesh frames are relatively fixed on the left and right sides of the bottom platform, and the protective ceiling is installed on the top of the supporting mesh frames; the front end of the bottom platform is provided with a groove that fits with the outer wall of the converter furnace shell; the sling comprises a main rail installed at the bottom of the protective ceiling and an electric hoist slidably arranged on the main rail, and the main rail extends in the front and rear directions; the protective ceiling is provided with lifting ears and / or the bottom platform is provided with fork grooves. When the converter slide slag retaining mechanism needs to be replaced, only the replacement device needs to be moved to the platform in front of the furnace, and the front end groove of the bottom platform is fit with the converter shell under the converter slide slag retaining mechanism; the replacement personnel stands on the bottom platform, uses the electric hoist to hang the converter slide slag retaining mechanism to be disassembled, and completes the disassembly and transfer of the converter slide slag retaining mechanism; the new converter slide slag retaining mechanism is hoisted and reinstalled; because the front end of the bottom platform is tightly connected with the converter shell through the groove, the gap between the platform in front of the furnace and the converter shell is eliminated, thereby avoiding the situation where the replacement personnel fall from the gap and get injured; the supporting mesh frames on the left and right sides can not only block the slag falling from the smoke hood, avoid the slag falling from high altitude and injuring the replacement personnel on the bottom platform, but also play a role in ventilation and air exchange, thereby improving the working comfort of the replacement personnel.

[0005] Preferably, the front end of the protective ceiling extends forward and protrudes beyond the front end of the bottom platform; the front end of the protective ceiling and the front end of the bottom platform can abut against the converter shell at the same time, thereby improving the stability of tooling replacement.

[0006] Preferably, two auxiliary guide rails are provided at the bottom of the protective ceiling, and the two auxiliary guide rails are symmetrically arranged on the left and right sides of the main rail; a pulley hook is installed on the auxiliary guide rail; by adding a pulley hook to assist in lifting the converter slide slag blocking mechanism, the converter slide slag blocking mechanism can be prevented from accidentally detaching from the electric hoist and injuring people, thereby improving the lifting safety.

[0007] Preferably, the supporting net frame is provided with a transverse blowing pipe extending in the front-to-back direction, and a plurality of blowing ports are provided at intervals on the transverse blowing pipe to quickly reduce the temperature in the working cabin and improve the working comfort of the replacement personnel.

[0008] Preferably, an anti-skid portion is provided on the top of the bottom platform to prevent the replacement personnel from slipping and falling.

[0009] Preferably, a guardrail connected to the bottom platform is provided at the front of the supporting net frame, which cooperates with the supporting net frame to block the replacement personnel and prevent the replacement personnel from falling from the left and right sides of the working cabin.

[0010] Preferably, the supporting mesh frame is connected to the protective ceiling via diagonal braces to provide reinforcement.

[0011] As described above, the replacement device of the converter slide slag blocking mechanism of the utility model has the following beneficial effects:

[0012] When it is necessary to replace the converter slide slag stop mechanism of the converter, it is necessary to first use a crane or a forklift to move the replacement device to the furnace front platform, and make the groove at the front of the bottom platform fit with the converter shell under the converter slide slag stop mechanism; then, the converter slide slag stop mechanism to be removed is hung by an electric hoist, and the connecting bolts on the converter slide slag stop mechanism are removed by a wrench; the removed converter slide slag stop mechanism is transferred to the transport rack outside the operating cabin, and the new converter slide slag stop mechanism is hoisted back and installed, thereby completing the replacement of the converter slide slag stop mechanism; since the groove at the front of the bottom platform fits with the converter shell under the converter slide slag stop mechanism, the gap between the furnace front platform and the converter shell is effectively eliminated, avoiding accidental falling of the replacement personnel in the gap; and the setting of the support mesh frame can not only prevent the personnel in the cabin from falling, but also prevent the steel slag falling from the smoke hood from entering the cabin and injuring the personnel in the cabin, thereby further improving the safety of replacement; in addition, the mesh holes on the support mesh frame also facilitate the exchange of air inside and outside the cabin, thereby improving the working comfort of the personnel in the cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the replacement device in the utility model.

[0014] Figure 2 The rear view of the replacement device.

[0015] Figure 3 This is a schematic diagram of the status when the replacement device is in use.

[0016] Description of Reference Numerals

[0017] Furnace front platform 01, converter shell 02, converter slide plate slag blocking mechanism 021, bottom platform 11, groove 111, fork groove 112, protective ceiling 12, supporting mesh frame 13, guardrail 14, electric hoist 21, pulley hook 22, horizontal blowing pipe 3. DETAILED DESCRIPTION

[0018] The following is a description of the implementation of the present invention by means of specific embodiments, and those familiar with the technology can be enlightened by this specification.

[0019] See also Figures 1 to 3 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial changes in the technical content. The content can easily understand other advantages and effects of the utility model.

[0020] Since there is a gap of 1.5m between the furnace front platform 01 and the converter shell 02, and the distance between the furnace front platform 01 table top and the ground is 11m, it is very easy for replacement personnel to fall from the gap between the furnace front platform 01 and the converter shell 02 when replacing the converter slide slag blocking mechanism 021 on the furnace front platform 01, which poses a great safety hazard; in addition, the slag above the smoke hood is also very easy to splash and injure the replacement personnel, affecting the safety of replacement.

[0021] Based on this, the utility model provides a replacement device for the converter slide slag blocking mechanism, which replaces and transports the converter slide slag blocking mechanism 021 at the converter steel outlet, thereby improving the safety of the converter slag blocking mechanism 021 during replacement and transportation. For ease of description, this application uses the length of the operating cabin as the front-to-back direction, the height of the operating cabin as the up-down direction, and the width of the operating cabin as the left-to-right direction. Based on this, Figure 3 In the drawing, the right side of the paper is the front direction, the left side of the paper is the back direction, the upper side of the paper is the upper direction, the lower side of the paper is the lower direction, the inner side perpendicular to the paper is the left direction, and the outer side perpendicular to the paper is the right direction.

[0022] like Figures 1 to 3 As shown, the utility model discloses a replacement device for a converter slide slag blocking mechanism, which includes an operating cabin and a sling; wherein the operating cabin includes a bottom platform 11 and a protective ceiling 12; a supporting mesh frame 13 is relatively fixed on the left and right sides of the bottom platform 11, and the protective ceiling 12 is installed on the top of the supporting mesh frame 13; the supporting mesh frame 13 includes at least two columns spaced apart in the front-to-back direction and a filter screen located between the columns; the filter screen can not only prevent personnel in the operating cabin from falling from both sides of the operating cabin, but also block the splashing slag to avoid the slag from injuring people; at the same time, the filter screen can also play a role in ventilation to prevent the temperature in the operating cabin from being too high and affecting the comfort of the replacement personnel. A groove 111 that fits with the outer wall of the converter shell 02 needs to be provided at the front end of the bottom platform 11, so that when the replacement device is placed on the furnace front platform 01, the gap between the furnace front platform 01 and the converter shell 02 can be eliminated by the fit of the groove 111 and the converter shell 02, thereby avoiding the risk of the replacement personnel stepping on air and falling; the lifting device includes a main rail installed at the bottom of the protective ceiling 12 and an electric hoist 21 slidably set on the main rail, and the main rail extends in the front and rear directions, so that the replacement personnel can control the electric hoist 22 to hang and rotate the converter slide slag blocking mechanism 021 through the controller, thereby reducing the difficulty of disassembly and transportation of the converter slide slag blocking mechanism 021; the protective ceiling 12 is provided with a lifting ear and / or the bottom platform 11 is opened with a fork groove 112, so as to facilitate the transportation of the entire replacement device by a crane or a forklift, thereby improving the transportation convenience of the replacement device.

[0023] It is understandable that the filter screen is made of a high temperature resistant material with a certain strength, and this is not limited thereto. The filter screen of this embodiment is preferably a steel wire mesh.

[0024] Since the converter shell 02 at the converter slide slag stop mechanism 021 is an inclined surface, in order to ensure the docking stability of the replacement device and the converter shell 02 and prevent the base platform 11 from bearing all the forces of the converter shell 02, the front end of the protective ceiling 12 needs to extend forward and protrude from the front end of the bottom platform 11, so that when the groove 111 of the bottom platform 11 is in contact with the converter shell 02 below the converter slide slag stop mechanism 021, the front end of the protective ceiling 12 can simultaneously abut against the converter shell 02 above the converter slide slag stop mechanism 021 to ensure the docking stability of the replacement device.

[0025] Furthermore, if Figure 2As shown, two auxiliary guide rails are provided at the bottom of the protective ceiling 12, and the two auxiliary guide rails are symmetrically arranged on the left and right sides of the main rail; a pulley hook 22 is installed on the auxiliary guide rail, so that when the electric hoist 21 lifts the converter slide slag blocking mechanism 021, the pulley hook 22 can be used for auxiliary hooking to prevent the converter slide slag blocking mechanism 021 from being unhooked and injuring the replacement personnel, thereby ensuring the safety of lifting.

[0026] In order to prevent the replacement personnel from slipping, an anti-skid portion needs to be provided on the top of the bottom platform 11, and the anti-skid portion is an anti-skid pad or a steel plate with an anti-skid pattern.

[0027] In order to ensure the continuity of operation, the converter slide slag blocking mechanism 021 is usually replaced during the converter operation interval. At this time, the converter shell 02 has a relatively high temperature (usually 100 degrees); thus, when the replacement device is docked with the converter shell 02, the temperature in the operating cabin is relatively high, which greatly increases the burden on the replacement personnel; in order to improve the operating comfort of the replacement personnel, such as Figure 1 As shown, a transverse blowing pipe 3 extending in the front-to-back direction is provided on the supporting net frame 13, and a plurality of blowing ports are provided at intervals on the transverse blowing pipe 3 so as to blow cold air into the working cabin through the blowing ports to achieve the purpose of cooling.

[0028] like Figure 1 and 3 As shown, a diagonal brace is provided between the supporting mesh frame 13 and the protective ceiling 12 to strengthen the connection and ensure the connection strength between the two.

[0029] like Figure 1 As shown, a guardrail 14 connected to the bottom platform 11 is provided at the front of the supporting net frame 13. The guardrail 14 not only plays a protective role, but also plays a role in strengthening the connection.

[0030] like Figure 3 As shown, the use process of the replacement device is as follows: first, the replacement device of the utility model is transported to the furnace front platform 01 by a forklift or a hanger, so that the groove 111 of the bottom platform 11 and the front end of the protective ceiling 12 are both in contact with the converter shell; at this time, the converter slide slag retaining mechanism 021 to be removed is located in the working cabin formed by the bottom platform 11, the protective ceiling 12 and the supporting mesh frame 13; the replacement personnel operate on the bottom platform 11, that is, the replacement personnel moves the electric hoist 21 (controlled by the controller) and the pulley hook 22 to the top of the converter slide slag retaining mechanism 021 to be replaced for hooking, and uses a wrench to remove the fixing bolts on the converter slide slag retaining mechanism 021; then the electric hoist 21 is used to move the disassembled converter slide slag retaining mechanism 021 from front to back to the conveying frame outside the working cabin, and the new converter slide slag retaining mechanism 021 is hoisted back to the installation position for installation to complete the final replacement.

[0031] During the replacement process, the bottom platform 11, the protective top plate 12 and the converter shell 02 are abutted to form a relatively stable structure, which not only ensures the docking stability of the replacement device, but also avoids the risk of replacement personnel falling from the gap between the front platform 01 and the converter shell 02; and the protective ceiling 12 and the supporting mesh frames 13 on both sides can block the flying slag, preventing the slag from entering the working cabin and injuring the replacement personnel, thereby further improving the working safety of the replacement personnel.

[0032] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A replacement device for a converter slide slag blocking mechanism, characterized in that: It includes an operating cabin and a lifting device; the operating cabin includes a bottom platform and a protective ceiling; supporting mesh frames are relatively fixed on the left and right sides of the bottom platform, and the protective ceiling is installed on the top of the supporting mesh frames; the front end of the bottom platform is provided with a groove that fits with the outer wall of the converter shell; the lifting device includes a main rail installed at the bottom of the protective ceiling and an electric hoist slidably set on the main rail, and the main rail extends in the front and rear directions; the protective ceiling is provided with lifting ears and / or the bottom platform is provided with fork grooves.

2. The device for replacing the slag blocking mechanism of a converter slide plate according to claim 1, characterized in that: The front end of the protective ceiling extends forward and protrudes beyond the front end of the bottom platform; the front end of the protective ceiling and the front end of the bottom platform can abut against the converter shell at the same time.

3. A replacement device for a converter slide slag blocking mechanism according to claim 1 or 2, characterized in that: Two auxiliary guide rails are arranged at the bottom of the protective ceiling, and the two auxiliary guide rails are symmetrically arranged on the left and right sides of the main guide rail; and pulley hooks are installed on the auxiliary guide rails.

4. A replacement device for a converter slide slag blocking mechanism according to claim 1 or 2, characterized in that: The supporting net frame is provided with a transverse blowing pipe extending in the front-to-back direction, and a plurality of blowing ports are arranged at intervals on the transverse blowing pipe.

5. A replacement device for a converter slide slag blocking mechanism according to claim 1 or 2, characterized in that: The top of the bottom platform is provided with an anti-slip portion.

6. A replacement device for a converter slide slag blocking mechanism according to claim 1 or 2, characterized in that: A guardrail connected to the bottom platform is arranged at the front of the supporting net frame.

7. A replacement device for a converter slide slag blocking mechanism according to claim 1 or 2, characterized in that: The supporting net frame is connected to the protective ceiling via diagonal braces.

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