CN215365840U - RH stove vacuum feeding device - Google Patents
RH stove vacuum feeding device Download PDFInfo
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- CN215365840U CN215365840U CN202121889811.3U CN202121889811U CN215365840U CN 215365840 U CN215365840 U CN 215365840U CN 202121889811 U CN202121889811 U CN 202121889811U CN 215365840 U CN215365840 U CN 215365840U
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- material pipe
- vacuum
- feeding device
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Abstract
The utility model discloses a RH furnace vacuum feeding device, comprising: the device comprises a vacuum hopper, a fixed material pipe connected with the vacuum hopper, a vacuum groove and a movable material pipe, wherein the upper end of the movable material pipe is connected with the fixed material pipe through a first pneumatic expansion joint, and the lower end of the movable material pipe is connected with the vacuum groove through a second pneumatic expansion joint; the movable material pipe is further connected with a movable assembly. The vacuum feeding device for the RH furnace is reliable in operation, has extremely low failure rate, can conveniently and quickly shift the feeding pipe on the premise of not disassembling the feeding pipe, ensures the lifting operation of a vacuum tank, ensures the smooth operation of maintenance work, and promotes the safe production.
Description
Technical Field
The utility model belongs to the technical field of metallurgy, and particularly relates to a vacuum feeding device of an RH furnace.
Background
In the refining process of the RH furnace, the components of the molten steel are frequently required to be finely adjusted so as to meet the requirements of the steel, particularly some special steels, on the component content, so that alloy materials are required to be added into a vacuum tank of the RH furnace, the operation of adding the alloy materials is required to be carried out in a closed environment of a feeding pipeline system, and the feeding pipeline system is required to be sealed. However, the vacuum vessel, which is the main equipment for RH furnace vacuum melting, generally needs to be replaced periodically for various reasons such as erosion, and the replacement of the vacuum vessel usually requires a lifting operation. The above two aspects of the situation present certain difficulties for maintenance work: on one hand, the feeding pipeline must be kept sealed and cannot be easily disassembled; on the other hand, the hoisting of the vacuum tank by the feeding pipeline forms an obstacle, and great obstacle is brought to maintenance work.
In the prior art, the above difficulties are solved by the use of a feeding chute, which is designed in two parts, namely: the fixed part and the rotating part are connected through a rotary bearing, and the switching part of the rotary bearing is sealed through a labyrinth. Although the method solves the problem of moving the feeding pipeline on the premise of not disassembling the feeding pipeline, a large amount of dust is easy to enter the rotary bearing due to the influence of the field environment, the phenomenon that the rotary bearing is blocked and cannot rotate is often caused, the feeding pipeline cannot be moved, and the vacuum tank is difficult to lift out.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vacuum feeding device of an RH furnace, which aims to solve the technical problems that: on the premise of not disassembling the feeding pipe, the feeding pipe is conveniently and reliably moved, and the hoisting operation of the vacuum tank is ensured.
In order to achieve the purpose, the utility model adopts the following technical scheme that:
the device comprises a vacuum hopper, a fixed material pipe connected with the vacuum hopper, a vacuum groove and a movable material pipe, wherein the upper end of the movable material pipe is connected with the fixed material pipe through a first pneumatic expansion joint, and the lower end of the movable material pipe is connected with the vacuum groove through a second pneumatic expansion joint; the movable material pipe is further connected with a movable assembly.
Furthermore, the moving assembly comprises a rack and a moving trolley, wherein the upper part of the rack is connected with a pair of upper guide rails, and the lower part of the rack is connected with a pair of lower guide rails; the pair of guide wheels at the front side of the moving trolley are respectively in rolling connection with the lower guide rail at the front side, and the pair of guide wheels at the rear side of the moving trolley are respectively in rolling connection with the lower guide rail at the rear side; the support block on the movable trolley is detachably connected with the movable material pipe; the moving trolley is connected with a push-pull mechanism.
Furthermore, the push-pull mechanism comprises an electro-hydraulic push rod connected to the left end of the rack, and a telescopic rod of the electro-hydraulic push rod is connected with the moving trolley through a pin shaft.
Further, the lower end of the movable material pipe is provided with a pneumatic baffle.
Furthermore, the electro-hydraulic push rod is electrically connected with the controller.
The vacuum feeding device for the RH furnace is reliable in operation, has extremely low failure rate, can conveniently and quickly shift the feeding pipe on the premise of not disassembling the feeding pipe, ensures the lifting operation of a vacuum tank, ensures the smooth operation of maintenance work, and promotes the safe production.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a partial sectional structural view of fig. 1.
Detailed Description
The present invention will be described in further detail below with reference to the attached drawings so as to be more clearly understood by those skilled in the art.
As shown in fig. 1 and 2, the present invention includes:
the device comprises a vacuum hopper 1, a fixed material pipe 2 connected with the vacuum hopper, a vacuum groove 3 and a movable material pipe 4, wherein the upper end of the movable material pipe is connected with the fixed material pipe through a first pneumatic expansion joint 5, and the lower end of the movable material pipe is connected with the vacuum groove through a second pneumatic expansion joint 6; the movable material pipe is also connected with a movable assembly 8.
Further, the moving assembly comprises a frame 81 and a moving trolley 84, wherein the upper part of the frame is connected with a pair of upper guide rails 82, and the lower part of the frame is connected with a pair of lower guide rails 83; the pair of rollers 85 at the front side of the moving trolley are respectively in rolling connection with the upper guide rail at the front side, the pair of rollers at the rear side of the moving trolley are respectively in rolling connection with the upper guide rail at the rear side, the pair of guide wheels 86 at the front side of the moving trolley are respectively in rolling connection with the lower guide rail at the front side, and the pair of guide wheels at the rear side of the moving trolley are respectively in rolling connection with the lower guide rail at the rear side; the support block 87 on the movable trolley is detachably connected with the movable material pipe; the moving trolley is connected with a push-pull mechanism.
Furthermore, the push-pull mechanism comprises an electro-hydraulic push rod 88 connected to the left end of the rack, and a telescopic rod 89 of the electro-hydraulic push rod is connected with the moving trolley through a pin shaft 810.
Further, the lower end of the movable material pipe is also provided with a pneumatic baffle 7.
Furthermore, the electro-hydraulic push rod is electrically connected with the controller.
The working principle of the utility model is as follows: when the vacuum groove needs to be lifted, the electro-hydraulic push rod 88 is started, the telescopic rod 89 retracts to drive the movable trolley to move left, so that the movable material pipe 4 is pulled to move left, the upper end of the movable material pipe is connected with the fixed material pipe through the first pneumatic telescopic joint 5, the lower end of the movable material pipe is connected with the vacuum groove through the second pneumatic telescopic joint 6, the telescopic functions of the first pneumatic telescopic joint and the second pneumatic telescopic joint are achieved, the left movement of the movable material pipe is achieved, then the pneumatic baffle 7 is closed, and the vacuum groove can be lifted.
The vacuum feeding device for the RH furnace is reliable in operation, has extremely low failure rate, can conveniently and quickly shift the feeding pipe on the premise of not disassembling the feeding pipe, ensures the lifting operation of a vacuum tank, ensures the smooth operation of maintenance work, and promotes the safe production.
The present invention is not limited to the above-mentioned embodiments, and various modifications made by those skilled in the art according to the concept of the present invention should fall within the scope of the claimed invention.
Claims (5)
1. The utility model provides a RH stove vacuum feeding device, includes vacuum hopper (1), the fixed material pipe (2) and the vacuum tank (3) of connecting the vacuum hopper, its characterized in that: the device also comprises a movable material pipe (4), wherein the upper end of the movable material pipe is connected with the fixed material pipe through a first pneumatic expansion joint (5), and the lower end of the movable material pipe is connected with the vacuum groove through a second pneumatic expansion joint (6); the movable material pipe is also connected with a movable assembly (8).
2. The RH furnace vacuum feeding device of claim 1, wherein: the moving assembly comprises a rack (81) and a moving trolley (84), wherein the upper part of the rack is connected with a pair of upper guide rails (82), and the lower part of the rack is connected with a pair of lower guide rails (83); a pair of rollers (85) at the front side of the mobile trolley are respectively in rolling connection with the upper guide rail at the front side, a pair of rollers at the rear side of the mobile trolley are respectively in rolling connection with the upper guide rail at the rear side, a pair of guide wheels (86) at the front side of the mobile trolley are respectively in rolling connection with the lower guide rail at the front side, and a pair of guide wheels at the rear side of the mobile trolley are respectively in rolling connection with the lower guide rail at the rear side; the supporting block (87) on the moving trolley is detachably connected with the moving material pipe; the moving trolley is connected with a push-pull mechanism.
3. The RH furnace vacuum feeding device of claim 2, wherein: the push-pull mechanism comprises an electro-hydraulic push rod (88) connected to the left end of the rack, and a telescopic rod (89) of the electro-hydraulic push rod is connected with the moving trolley through a pin shaft (810).
4. The RH furnace vacuum feeding device according to claim 1 or 2, wherein: the lower end of the movable material pipe is also provided with a pneumatic baffle (7).
5. The RH furnace vacuum feeding device of claim 3, wherein: the electro-hydraulic push rod is electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121889811.3U CN215365840U (en) | 2021-08-11 | 2021-08-11 | RH stove vacuum feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121889811.3U CN215365840U (en) | 2021-08-11 | 2021-08-11 | RH stove vacuum feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215365840U true CN215365840U (en) | 2021-12-31 |
Family
ID=79618650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121889811.3U Active CN215365840U (en) | 2021-08-11 | 2021-08-11 | RH stove vacuum feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215365840U (en) |
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2021
- 2021-08-11 CN CN202121889811.3U patent/CN215365840U/en active Active
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