A salvaging and integrated deslagging device for a tin smelting process electric furnace front bed

Abstract

This invention discloses an integrated slag removal device for the electric furnace front bed in tin smelting, comprising: a track, a platform, a robotic arm, a pneumatic pick, and a slag removal assembly; the platform is slidably connected to the top of the track; the robotic arm is mounted on the top of the platform; the mounting end of the pneumatic pick is connected to the robotic arm, and the working end is equipped with a pick's chisel; the mounting end of the slag removal assembly is connected to the robotic arm, and the working end is equipped with a slag-removing claw capable of opening and closing. The slag removal device of this invention integrates slag removal and slag scraping, making slag removal convenient and highly efficient.

Description

Technical Field

[0001] This invention relates to the field of tin smelting technology, and more specifically to an integrated slag removal device for the front bed of an electric furnace in the tin smelting process. Background Technology

[0002] Electric furnace smelting, as one of the methods in the reduction smelting stage of tin smelting, adopts batch feeding and generates high temperature through electric arc or molten slag resistance to rapidly reduce tin oxide into crude tin. The reduction reaction and slag formation process are carried out simultaneously. The slag produced by smelting can be centrally smelted for secondary tin recovery, which can meet the processing needs of minerals or impurities with different tin contents and effectively reduce resource waste.

[0003] During the electric furnace reduction smelting process, the high-temperature molten liquid obtained is placed in the forebed. During the cooling process, the crude tin and slag form upper and lower layers in the forebed. After cooling, the crude tin is discharged and the slag remains in the forebed. At this time, the slag in the forebed needs to be removed so that the forebed can be used for the next batch of production.

[0004] Slag removal at the front of the furnace is an essential operation in the electric furnace smelting cycle. This operation is labor-intensive and operates under harsh conditions. The current slag removal method involves manual slag breaking with pneumatic picks, followed by gantry crane transporting the slag to a designated location. After complete cooling, the slag is further broken into smaller pieces by manual hammering.

[0005] Therefore, developing an integrated slag removal device for the electric furnace front bed in the tin smelting process that is convenient and efficient is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, the present invention provides an integrated slag removal device for the electric furnace front bed in the tin smelting process, which is convenient and efficient in slag removal.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A slag removal device integrating the foreboard scooping of an electric furnace in a tin smelting process includes: track, The platform is slidably connected to the top of the track; A robotic arm, which is mounted on top of the platform; A pneumatic pick, wherein the mounting end of the pneumatic pick is connected to the robotic arm, and the working end is provided with a pick bar. The slag removal assembly has its mounting end connected to the robotic arm, and its working end is equipped with a slag removal claw that can open and close.

[0009] The beneficial effects of adopting the above technical solution are that it integrates traditional manual slag removal and slag retrieval into one device, and uses a robotic arm to perform the slag removal and slag retrieval process, which significantly improves slag removal efficiency, reduces manual intervention, and lowers labor intensity and operational risks.

[0010] Preferably, a drive motor is installed at the bottom of the platform, which drives the platform to move along the track. This enables the slag removal device to be positioned and moved on the track, expands the slag removal range, adapts to the slag removal needs of the front bed at different locations, and improves operational flexibility and coverage area.

[0011] Preferably, the platform is provided with a base on top, and the bottom of the robotic arm is mounted on the top of the base.

[0012] Preferably, the end of the robotic arm is equipped with a first quick-change disc that connects to the pneumatic pick or slag removal assembly. This enables rapid tooling switching, reduces downtime, improves equipment utilization, and meets the high-efficiency requirements of alternating slag removal and slag removal operations.

[0013] Preferably, the pneumatic pick includes: a second quick-change disc, a pick barrel, and a limiting bracket. One end of the pick barrel is connected to the second quick-change disc, and the second quick-change disc is connected to the first quick-change disc. The other end of the pick barrel is connected to the limiting bracket, and the drive end of the pick barrel is connected to the pick chisel, which penetrates the limiting bracket.

[0014] Preferably, the slag removal assembly includes: a third quick-change disc, a slag removal body, and a cylinder; the mounting end of the slag removal body is connected to the third quick-change disc, and the third quick-change disc is connected to the first quick-change disc; the cylinder is disposed inside the slag removal body, the moving end of the cylinder is hinged to a connecting rod, the other end of the connecting rod is hinged to the bottom of the slag removal claw, and the top of the slag removal claw is hinged to the bottom of the slag removal body.

[0015] Preferably, a connecting groove is provided on the side wall at the bottom of the slag removal body, the moving end of the cylinder passes through the connecting groove and is connected to an mounting plate, and the top end of the connecting rod is hinged to the mounting plate.

[0016] Preferably, the closed end of the claw is provided with a scooping tooth, and when the two claws are closed, the scooping teeth are closed in a cross manner.

[0017] Preferably, a control cabinet is provided on the top of the platform, and the drive motor and cylinder are both connected to the control cabinet.

[0018] Preferably, the slag removal device also includes a support for placing the pneumatic pick and slag removal assembly.

[0019] As can be seen from the above technical solution, compared with the prior art, the present invention discloses an integrated slag removal device for the electric furnace front bed in the tin smelting process, the beneficial effects of which are: (1) This invention integrates slag removal and slag collection, with a high degree of automation, simple operation, high slag removal and crushing efficiency, and good slag collection effect; (2) Using this device, manual cleaning of slag is no longer required, reducing the intensity of manual labor and effectively avoiding the safety risks caused by cross-operations. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the slag removal device provided by the present invention; Figure 2 A top view of the slag removal device provided by the present invention; Figure 3 This is a side view of the slag removal device provided by the present invention; Figure 4 This is a schematic diagram of the structure of the pneumatic pick provided by the present invention; Figure 5 This is a schematic diagram of the slag removal component provided by the present invention.

[0022] In the figure, 1-Railway; 2-Platform; 3-Robotic arm; 31-Arm 1; 32-Arm 2; 33-Arm 3; 34-Arm 4; 35-Arm 5; 4-Pneumatic pick; 41-Pickle; 42-Second quick-change disc; 43-Pick cylinder; 44-Limit bracket; 5-Slag removal assembly; 51-Slag removal claw; 52-Third quick-change disc; 53-Slag removal body; 54-Cylinder; 55-Connecting rod; 56-Connecting groove; 57-Mounting plate; 58-Slag removal teeth; 6-Drive motor; 7-Control cabinet; 8-Base; 9-First quick-change disc; 10-Bracket. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This invention discloses an integrated slag removal device for the electric furnace fore-hearth in tin smelting, comprising: Track 1, Platform 2 is slidably connected to the top of track 1; Robotic arm 3 is mounted on top of platform 2; The pneumatic pick 4 has its mounting end connected to the robotic arm 3 and its working end equipped with a pick bar 41. The slag removal component 5 is installed at the same end as the robotic arm 3, and its working end is equipped with a slag-removing claw 51 that can open and close. When slag removal is required, the robotic arm 3 is connected to the pneumatic hammer 4 to remove slag; when slag removal is required, the robotic arm 3 is connected to the slag removal component 5 to remove slag. This system integrates slag removal and slag removal, and can replace manual operation, thus improving work efficiency.

[0025] In one embodiment, a drive motor 6 is installed at the bottom of the platform 2, which drives the platform 2 to move along the track 1. The movement of the platform 2 along the track can be a conventional linear gear rack slide, where the drive motor 6 drives the gear to rotate, and the gear meshes with the rack on the track 1, thereby moving the platform 2 along the track 1. The drive motor 6 is connected to a control cabinet 7, which controls the platform 2 to move to a set position.

[0026] In one embodiment, the robotic arm 3 includes: arm one 31, arm two 32, arm three 33, arm four 34, and arm five 35; each arm of the robotic arm is driven by a corresponding drive component, and each drive component is connected to the control cabinet 7, through which the corresponding actions of the robotic arm are controlled. This robotic arm is an existing robotic arm, mainly realizing swinging and rotating actions, and these actions are all implemented in the same way as existing robotic arms.

[0027] In one embodiment, a base 8 is provided on the top of the platform 2, and the bottom of the robotic arm 3 is mounted on the top of the base 8.

[0028] In one embodiment, a first quick-change disc 9 is provided at the connection end between the arm 35 and the pneumatic pick 4 or the slag removal assembly 5. The quick-change disc facilitates the rapid replacement of the arm 35 with the pneumatic pick 4 or the slag removal assembly 5.

[0029] In one embodiment, the pneumatic pick 4 includes: a second quick-change disc 42, a pick cylinder 43, and a limiting bracket 44. One end of the pick cylinder 43 is connected to the second quick-change disc 42, which is connected to the first quick-change disc 9. The other end of the pick cylinder 43 is connected to the limiting bracket 44. The drive end of the pick cylinder 43 is connected to a pick bit 41, which passes through the limiting bracket 44. Currently, the pick bit is three-sectioned. Because long pick bits are easily broken, the long pick bit is directly separated into three sections at the point of breakage based on the testing results. The bottom section is made of a high-temperature resistant and high-hardness alloy. By setting the limiting bracket 44 on the outside of the three sections of the pick bit, the pick bit 41 is kept in a linear motion state, ensuring that the impact force can be transmitted to the bottom of the pick bit. The principle of the pick bit 41 in the pneumatic pick 4 being driven by compressed air is the same as that of existing pneumatic picks.

[0030] In one embodiment, the slag removal assembly 5 includes: a third quick-change disc 52, a slag removal body 53, and a cylinder 54; the mounting end of the slag removal body 53 is connected to the third quick-change disc 52, and the third quick-change disc 52 is connected to the first quick-change disc 9; the cylinder 54 is disposed inside the slag removal body 53, and a connecting rod 55 is hinged to the moving end of the cylinder 54, the other end of the connecting rod 55 is hinged to the bottom of the slag removal claw 51, and the top of the slag removal claw 51 is hinged to the bottom of the slag removal body 53. When the cylinder 54 extends, it drives the connecting rod 55 to open the slag removal claw 51; when the cylinder 54 retracts, it drives the connecting rod 55 to close the slag removal claw 51. The slag removal operation can be realized by the extension and retraction of the cylinder 54.

[0031] In one embodiment, a connecting groove 56 is provided on the side wall at the bottom of the slag removal body 53, the moving end of the cylinder 54 passes through the connecting groove 56 and is connected to the mounting plate 57, and the top end of the connecting rod 55 is hinged to the mounting plate 57.

[0032] The closed end of the scooping claw 51 is provided with scooping teeth 58. When the two scooping claws 51 are closed, the scooping teeth 58 intersect and close. One of the two scooping claws 51 is provided with two scooping teeth 58, and the other scooping claw 51 is provided with three scooping teeth 58. When the two scooping claws 51 are closed, the scooping teeth 58 intersect and close. The scooping teeth 58 can reduce the gap when the scooping claws 51 are closed, and can scoop up smaller slag.

[0033] The first quick-change plate 9, the second quick-change plate 42, and the third quick-change plate 52 are all existing quick-change plates. The first quick-change plate 9 is the mother plate, and the second quick-change plate 42 and the third quick-change plate 52 are the daughter plates that can be quickly connected. The quick-change plate used in this application is produced by Zhengzhou Linghang Robotics Co., Ltd., and the model is: LTC-0630F robot gun changing plate.

[0034] In one embodiment, a control cabinet 7 is provided on the top of the platform 2, and the drive motor 6 and cylinder 54 are both connected to the control cabinet 7.

[0035] In one embodiment, the slag removal device further includes a support 10 for placing the pneumatic pick 4 and the slag removal assembly 5.

[0036] Work process: Slag removal: First, install the pneumatic pick 4 on the robotic arm 3. Then, move the pneumatic pick 4 to the designated position, start the pneumatic pick 4, and supply air. Then, control the pick 41 to continue downward. When the set depth is reached, the air supply will stop, and the pneumatic pick 4 will be controlled to move vertically upward to the initial height and then horizontally to the next slag removal point. This process is repeated. The specific steps are as follows: Step 1: Before slag removal, the pneumatic pick 4 is perpendicular to the front bed. At the starting point of slag removal, the slag is removed and crushed from west to east and from south to north at certain intervals. After the slag removal is completed, the program will skip the slag removal operation in the west-east direction and proceed to the next operation. Step 2: The pneumatic pick is at a certain angle to the front bed, and a series of crushing operations are carried out from south to north to the slag discharge port at certain intervals on the side near the east. This also has the function of skipping the process, which means ending the subsequent operations of the north and south columns and proceeding to Step 3. Steps 3, 4, 5, and 6: Crush the front bed at certain angles and intervals in the order of west, south, east, and north.

[0037] Following the order of first the center and then the perimeter ensures that large pieces of slag from the front bed do not fall off, resulting in the most ideal crushing effect. The crushed slag does not require secondary crushing during subsequent screening. During the slag removal process, a maximum number of impacts is set for each location; after reaching this number, the next crushing operation begins. If the pneumatic pick gets stuck during slag removal, this is resolved by controlling the rotation of the end shaft.

[0038] Slag removal: First, install the slag removal component 5 on the robotic arm 3, and then move the slag removal component 5 to the designated position. The specific slag removal steps are as follows: Step 1: Begin by moving vertically downwards from west to east and from south to north from the starting point to collect the slag; Step 2: At the south side of the slag discharge opening, carry out slag removal from east to west and from north to south; Step 3: Remove debris from the southeast and southwest corners of the transition section of the front bed; Step 4: Remove slag from the south side of the forebed; Step 5: With the grabber in the open position, push the remaining slag from the south to the north and grab it. Step Six: Grab the area below the slag discharge port separately.

[0039] During the slag-grabbing process, depending on the judgment conditions, the grabber will perform movements such as pressing, prying, pushing, retracting, and shaking. When grabbing slag, each bucket will be drained of molten tin at a fixed point for a certain period of time to empty the molten tin, and finally poured into the slag bucket at the slag dumping point.

[0040] In actual production, the production site can freely switch between pneumatic pick and reamer operation by operating the knob according to production needs; manual preparation is an emergency handling procedure. After selecting this procedure, the robotic arm will automatically move to the slag removal starting point when it determines that the tooling is a pneumatic pick, and then the slag can be manually removed by the operator on site through the on-site operating handle.

[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A slag removal device integrating the foreboard of an electric furnace in a tin smelting process, characterized in that, include: track, The platform is slidably connected to the top of the track; A robotic arm, which is mounted on top of the platform; A pneumatic pick, wherein the mounting end of the pneumatic pick is connected to the robotic arm, and the working end is provided with a pick bar. The slag removal assembly has its mounting end connected to the robotic arm, and its working end is equipped with a slag removal claw that can open and close.

2. The integrated slag removal device for the electric furnace fore-bed in tin smelting process according to claim 1, characterized in that, A drive motor is installed at the bottom of the platform, and the drive motor drives the platform to move along the track.

3. The integrated slag removal device for the electric furnace fore-bed in tin smelting process according to claim 2, characterized in that, The platform has a base on top, and the bottom of the robotic arm is mounted on the top of the base.

4. The integrated slag removal device for the electric furnace fore-bed in tin smelting process according to claim 3, characterized in that, The end of the robotic arm is provided with a first quick-change disc that connects to the pneumatic pick or slag removal assembly.

5. The integrated slag removal device for the electric furnace fore-bed in tin smelting process according to claim 4, characterized in that, The pneumatic pick includes: a second quick-change disc, a pick barrel, and a limiting bracket. One end of the pick barrel is connected to the second quick-change disc, and the second quick-change disc is connected to the first quick-change disc. The other end of the pick barrel is connected to the limiting bracket, and the drive end of the pick barrel is connected to the pick chisel, which penetrates the limiting bracket.

6. The integrated slag removal device for the electric furnace fore-bed in tin smelting process according to claim 4, characterized in that, The slag removal assembly includes: a third quick-change disc, a slag removal body, and a cylinder; the mounting end of the slag removal body is connected to the third quick-change disc, and the third quick-change disc is connected to the first quick-change disc; the cylinder is disposed inside the slag removal body, and the moving end of the cylinder is hinged to a connecting rod, the other end of the connecting rod is hinged to the bottom of the slag removal claw, and the top of the slag removal claw is hinged to the bottom of the slag removal body.

7. The integrated slag removal device for the electric furnace fore-bed in tin smelting process according to claim 6, characterized in that, The bottom side wall of the slag removal body is provided with a connecting groove, the moving end of the cylinder passes through the connecting groove and is connected to the mounting plate, and the top end of the connecting rod is hinged to the mounting plate.

8. The integrated slag removal device for the electric furnace fore-bed in tin smelting process according to claim 6, characterized in that, The closed end of the claw is provided with a scooping tooth, and when the two claws are closed, the scooping teeth are closed in a cross manner.

9. The integrated slag removal device for the electric furnace fore-bed in tin smelting process according to claim 7, characterized in that, A control cabinet is installed on the top of the platform, and the drive motor and cylinder are connected to the control cabinet.

10. The integrated slag removal device for the electric furnace fore-bed in tin smelting process according to claim 1, characterized in that, The slag removal device also includes a support for holding the pneumatic pick and slag removal components.

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