WO2022205567A1

WO2022205567A1 - Submerged arc welding flux recycling separating discharging circulating device

Info

Publication number: WO2022205567A1
Application number: PCT/CN2021/092968
Authority: WO
Inventors: 周宇飞; 杜康; 王跃跃; 张龙
Original assignee: 浙江金象科技有限公司
Priority date: 2021-03-31
Filing date: 2021-05-11
Publication date: 2022-10-06
Also published as: CN113083668A; CN113083668B

Abstract

A submerged arc welding flux recycling separating discharging circulating device, comprising an arc-shaped material guide member (1) provided on the outer wall of a tank body workpiece. A material guide groove (11) capable of surrounding a welding spot is provided at the inner side of the arc-shaped material guide member (1); a movable automatic seam welding device is provided above the top of the arc-shaped material guide member (1); a support frame (2) communicated with the material guide groove (11) is provided below the bottom end of the arc-shaped material guide member (1); a hopper (21) is provided on the support frame (2); and the arc-shaped material guide member (1) can be automatically turned over and separated from the tank body workpiece.

Description

Submerged arc welding flux recovery and separation discharge recycling device

technical field

The invention relates to a submerged arc welding flux recovery, separation and discharge recycling device, which belongs to the technical field of submerged arc welding flux recovery.

Background technique

Submerged arc welding has the advantages of high productivity, high degree of mechanization, good and stable welding quality, and is widely used in boilers, pressure vessels, petrochemicals, nuclear vessels, oil and gas pipelines and other fields. Flux is an indispensable welding auxiliary material for submerged arc welding, and the flux that has not been melted during the welding process should be recycled and used again.

In the prior art, submerged arc welding is often used in conventional tank body welding. When the submerged arc welder welds the weld, the flux and the slag cannot be separated. Flux and slag are scattered on the ground, causing serious waste and inconvenience to on-site work.

technical problem

The purpose of the present invention is to provide a submerged arc welding flux recovery, separation and discharge recycling device, which solves the problems in the prior art that most of the flux and welding slag will be scattered around during welding seam welding and cause waste, and increase the difficulty of cleaning. .

technical solutions

The above-mentioned technical purpose of the present invention is mainly solved by the following technical solutions: a submerged arc welding flux recovery, separation and discharge circulation device, comprising an arc-shaped material guide member arranged on the outer wall of the tank workpiece, the arc-shaped material guide member The inner side of the arc-shaped material guide is provided with a material guide groove that can surround the welding point, a movable automatic welding seam device is provided above the top of the arc-shaped material guide, and a bottom end of the arc-shaped material guide is connected with the material guide groove. The supporting frame is provided with a hopper, and the arc-shaped material guide can be automatically turned over and separated from the tank workpiece; the above-mentioned arc-shaped material guide is arranged to facilitate the welding of the tank workpiece. Covered, so that when the tank workpiece is welded, it can be enclosed by the guide groove on the arc guide, to block and guide the flux and welding slag generated during welding, and prevent the flux and welding slag from scattering around. It is difficult to clean, and at the same time, the flux and slag can move along the guide trough and fall into the hopper for collection, so as to facilitate the separation of the flux and the slag and reuse the flux to avoid waste.

Preferably, the outer upper end of the support frame is provided with a driving cylinder connected to the outer wall of the arc-shaped material guide, the inner upper end of the support frame is provided with a top plate, and the arc-shaped material guide and the top plate are rotatably connected; the above The setting of the driving cylinder is convenient to control the inversion of the arc-shaped material guide, so that after the welding seam of the tank body workpiece is completed, the arc-shaped material guide member can be controlled to separate from the tank body workpiece through the driving cylinder, so as to facilitate the removal of the welding seam completed. At the same time, the arc-shaped material guide can be controlled to be close to the tank workpiece before the welding seam, and the arc-shaped material guide can be installed on the tank workpiece to carry out the welding work.

Preferably, the top plate can be turned upside down on the support frame, a connecting rod is arranged between the top plate and the arc-shaped material guide, one end of the connecting rod is rotatably connected to the top plate, and the other end of the connecting rod is connected to the arc The upper end of the top plate is provided with a slot; the above-mentioned top plate and slot are arranged to facilitate the automatic scraping of the welding seam coating along with the rotation of the tank workpiece, avoiding the need for the coating to cool after cooling. , The labor and trouble of manual scraping makes the cleaning of the skin easier.

Preferably, a vibrator is provided on the outer wall of the hopper, and a first-stage filter screen and a second-stage filter screen are arranged in the hopper from top to bottom in sequence; The filtering effect of the filter screen and the secondary filter screen, and the setting of the primary filter screen and the secondary filter screen, so that the welding slag and the flux of different sizes can be separated in turn in the process of welding slag and flux falling, so as to facilitate the appropriate The size of the flux is reused.

Preferably, the first-stage filter screen is inclined downward toward one side of the hopper, a first discharge port is provided on the hopper near the lowest position of the first-stage filter screen, and the top surface of the first-stage filter screen is provided with a first outlet. There are a plurality of first blocking bars arranged at intervals, and each of the first blocking bars is arranged in a direction perpendicular to the inclination direction of the first-level filter screen; the inclined setting of the first-level filter screen makes the separated large particles Welding slag and flux can be automatically separated from the first discharge port along the inclined direction, which reduces the difficulty of cleaning the surface of the first-stage filter. The residence time of the flux and slag on the filter screen is increased, thereby increasing the shaking time of the flux and the slag and enhancing the separation effect.

Preferably, a guide plate inclined downward toward one side of the hopper is provided below the secondary filter screen, and a second discharge port is provided on the hopper near the lowest position of the guide plate; the above guide The setting of the flow plate is convenient for blocking and guiding the small particles of flux, so that the small particles of flux can be separated from the second outlet along the inclined direction, so as to prevent the small particles of flux from falling to the bottom of the hopper and affecting the separation quality.

Preferably, the secondary filter screen includes a first inclined portion and a second inclined portion that are symmetrically arranged and inclined downward toward both sides, and a gap is provided between the lowest part of the first inclined portion and the inner wall of the hopper, There is a gap between the lowest part of the second inclined part and the inner wall of the hopper, and a plurality of first inclined parts are arranged at intervals along the inclined direction on the top surface of the first inclined part and the top surface of the second inclined part. Two retaining bars; the above-mentioned first inclined part and second inclined part are arranged so that the medium particle flux can directly slide down from the gap on both sides of the secondary filter screen to the bottom of the hopper, so as to be collected for secondary use, and Small particles of flux can roll on the inclined part, and are directly separated through the secondary filter screen and fall down, and the setting of the second baffle is convenient to block the small particles of flux and avoid the small particles of flux from the secondary filter. The two sides of the mesh slide down to the bottom of the hopper, and can cooperate with the vibrator to increase the residence time of fluxes of different sizes falling on the secondary filter, thereby increasing the shaking time of the flux on the secondary filter and enhancing the separation effect.

Preferably, the top end of the arc-shaped material guide is provided with a notch, and the automatic welding seam device includes a horizontally arranged and horizontally movable support plate, a welding torch penetrated in the notch and vertically arranged on the support plate, and a The storage tank above the support plate, the welding torch is communicated with the bottom of the storage tank through a hose; the setting of the above-mentioned gap can make way for the welding torch to pass through, so as to facilitate the welding of the welding seam, and the storage tank The setting is used to store the flux to be used, so that the flux can be transported through the hose at any time to realize the welding of the welding torch, and it can be conveyed through the hose, so that the welding torch can continue welding within a certain period of time, ensuring a single tank The continuity of the welding work of the body workpiece is avoided, and the welding is stopped halfway due to insufficient flux, which affects the welding quality.

Preferably, the bottom of the hopper is provided with a soft auger and a control motor for controlling the soft auger, one end of the soft auger is arranged at the bottom of the hopper and connected to the control motor, and the other side of the soft auger is connected to the control motor. One end extends through the support plate to above the top opening of the storage box; the above-mentioned soft auger and control motor are arranged so that the medium-particle flux separated from the bottom of the hopper can be collected and directly transported to the storage box for secondary use , realizes the recycling of flux, and effectively avoids the waste of flux material.

Preferably, the bottom of the storage box is provided with a plurality of compression springs connected to the support plate, and the outer wall of the storage box is provided with a laser ranging sensor, and the laser ranging sensor is electrically connected to an external frequency converter through a wire. Connection; the setting of the above-mentioned laser ranging sensor can cooperate with the compression spring to set the load-bearing limit of the storage box, so that after the storage box sinks for a certain distance, the laser ranging sensor can detect the gap between the storage box and the support plate The distance between the two parts changes, and it is detected whether the flux in the storage box is overweight, so that the start and stop of the control motor can be controlled by the frequency converter, so as to prevent the overflow of the flux in the storage box from being transported too much, resulting in waste.

beneficial effect

Therefore, the present invention has the characteristics of avoiding the waste caused by the scattering of flux and welding slag in the welding seam, and reducing the difficulty of cleaning.

Description of drawings

Fig. 1 is the three-dimensional structure diagram of the present invention;

Fig. 2 is the three-dimensional structure diagram of another angle of view of Fig. 1;

Fig. 3 is the structural sectional view of the hopper in Fig. 1;

FIG. 4 is a cross-sectional view of the structure of FIG. 3 from another perspective.

BEST MODE FOR CARRYING OUT THE INVENTION

The technical solutions of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

As shown in Figures 1-4, a submerged arc welding flux recovery, separation and discharge recycling device is characterized in that it includes an arc-shaped material guide 1 arranged on the outer wall of the tank workpiece, and the inner side of the arc-shaped material guide 1 is provided with There is a material guide trough 11 that can surround the welding part of the workpiece of the tank body, a movable automatic welding seam device is arranged above the top of the arc-shaped material guide piece 1, and a material guide trough 11 is arranged below the bottom end of the arc-shaped material guide piece 1 The connected support frame 2, the support frame 2 is provided with a hopper 21, and the arc-shaped material guide 1 can be automatically turned over and separated from the tank workpiece. It is surrounded by a shroud, so that when the tank workpiece is welded, it can be enclosed by the guide groove on the arc guide to block and guide the flux and welding slag generated during welding, so as to prevent the flux and welding slag from scattering and increasing. It reduces the difficulty of cleaning, and at the same time allows the flux and slag to move along the guide trough and fall into the hopper for collection, so as to facilitate the separation of the flux and the slag and reuse the flux to avoid waste. The material guide member is arc-shaped and adheres closely to the outer wall of the tank workpiece, and the material guide groove just surrounds the welding seam. During welding, the flux and welding slag will be blocked by the arc guide material and stay in the material guide groove. , and drop down into the hopper along the guide trough. When the welding is completed, the automatic welding device moves horizontally through the external tooling and leaves the top of the tank workpiece, while the arc-shaped material guide leaves the outer wall of the tank workpiece. Thus, the can body workpiece can be withdrawn from the device, and a new can body workpiece can be mounted on the device for welding.

The outer upper end of the support frame 2 is provided with a driving cylinder 12 connected to the outer wall of the arc-shaped material guide 1, and the inner upper end of the support frame 2 is provided with a top plate 22, and the arc-shaped material guide 1 and the top plate 22 are rotatably connected. The above-mentioned driving cylinder It is easy to control the overturn of the arc-shaped material guide, so that after the welding of the tank body workpiece is completed, the arc-shaped material guide can be controlled to separate from the tank body workpiece by driving the cylinder, so as to facilitate the removal of the tank body after the welding seam is completed. At the same time, before the welding seam, the arc-shaped material guide can be controlled to be close to the tank workpiece, and the arc-shaped material guide can be installed on the tank workpiece to carry out the welding work; the top plate 22 can be turned upside down on the support frame 2, A connecting rod 13 is arranged between the top plate 22 and the arc-shaped material guide 1. One end of the connecting rod 13 is rotatably connected with the top plate 22, and the other end of the connecting rod 13 is rotatably connected with the arc-shaped material guide 1. The upper end of the top plate 22 is provided with Slot 221, the above-mentioned top plate and slot are arranged to facilitate automatic scraping of the welding seam coating with the rotation of the tank workpiece, avoiding the labor and trouble of manual scraping after the coating is cooled, and making the coating Cleaning is easier; before welding, the drive cylinder can control the arc-shaped material guide to be close to the tank workpiece, so that the inner side of the arc-shaped material guide is close to the outer wall of the tank workpiece, and the welding seam of the tank workpiece is located in the material guide groove At this time, the top plate is close to the welding seam of the tank workpiece with the movement of the arc-shaped material guide and the jacking movement of the connecting rod. The slot is just stuck at the welding seam of the welding seam. Therefore, the coating at the welding place can be scraped off. When the coating is just welded, the temperature of the coating is higher, the texture is soft, and the scraping is more convenient. After the coating is cooled, the texture is hard and the scraping is more difficult. , Scrape off the medicine skin directly through the top plate after welding, which is more easy and labor-saving.

A vibrator 211 is arranged on the outer wall of the hopper 21, and a first-stage filter screen 23 and a second-stage filter screen 24 are arranged in the hopper 21 from top to bottom. and the filtration effect of the secondary filter screen, and the setting of the primary filter screen and the secondary filter screen, so that the welding slag and flux of different sizes can be separated in turn in the process of welding slag and flux falling, so as to facilitate the selection of suitable size The flux is reused; the primary filter screen 23 is inclined downward toward the side of the hopper 21, and a first discharge port 231 is provided on the hopper 21 near the lowest position of the primary filter screen 23. The top surface is provided with a plurality of first blocking bars 232 arranged at intervals, and each first blocking bar 232 is arranged in a direction perpendicular to the inclination direction of the first-level filter screen 23. The inclined setting of the first-level filter screen makes the separation The large particles of welding slag and flux can be automatically separated from the first discharge port along the inclined direction, which reduces the difficulty of cleaning the surface of the first-stage filter. The residence time of the flux and slag falling on the primary filter screen increases the shaking time of the flux and slag and enhances the separation effect. Technology, which will not be repeated here, the above-mentioned first-stage filter screen can separate the largest volume of solder slag and flux and separate the solder slag and flux from the first outlet.

The lower part of the secondary screen 24 is provided with a guide plate 25 which is inclined downward toward one side of the hopper 21, and a second discharge port 251 is provided on the hopper 21 near the lowest position of the guide plate 25. The above-mentioned The setting of the deflector is easy to block and guide the small particles of flux, so that the small particles of flux can be separated from the second outlet along the inclined direction, so as to prevent the small particles of flux from falling to the bottom of the hopper and affecting the separation quality; The secondary filter screen 24 includes a first inclined portion 241 and a second inclined portion 242 that are symmetrically arranged and inclined downward toward both sides. There is a gap between the lowest part of the inclined part 242 and the inner wall of the hopper 21, and a plurality of second stoppers spaced along the inclined direction are provided on the top surface of the first inclined part 241 and the top surface of the second inclined part 242. Strip 243, the arrangement of the above-mentioned first inclined part and second inclined part, so that the medium particle flux can directly slide down from the gap on both sides of the secondary filter screen to the bottom of the hopper, so as to be collected for secondary use, and the small The granular flux can roll on the inclined part, and be separated directly through the secondary filter and fall down, and the setting of the second blocking bar is convenient to block the small particle flux and avoid the small particle flux from the secondary filter. The two sides of the hopper slide down to the bottom of the hopper, and can cooperate with the vibrator to increase the residence time of different sizes of flux falling on the secondary filter, thereby increasing the shaking time of the flux on the secondary filter and enhancing the separation effect.

The secondary filter can separate the medium volume of flux from the small flux, and the medium volume of flux needs to be reused. The medium volume of flux can slide off the top of the secondary filter in an inclined direction and fall to the hopper through the gap. At the bottom of the device, waiting for collection and transportation, the small flux falls from the secondary filter screen to the deflector, and falls out of the second outlet from the deflector along the inclined direction to achieve separation.

The top end of the arc-shaped material guide 1 is provided with a gap 14, and the automatic welding seam device includes a horizontally arranged and horizontally movable support plate 31, a welding torch 32 that penetrates through the gap 14 and is vertically arranged on the support plate 31, and a The storage box 33 above the support plate 31, the welding torch 32 is communicated with the bottom of the storage box 33 through the hose 321, the above-mentioned notch can be set aside for the welding torch to pass through, so as to facilitate the welding of the butt weld, and the storage The setting of the material box is used to store the flux to be used, so that the flux can be transported through the hose at any time to realize the welding of the welding torch, and it can be conveyed through the hose, so that the welding torch can continue welding within a certain period of time, ensuring The continuity of the welding work of a single tank workpiece can avoid stopping welding halfway due to insufficient flux, which affects the welding quality; the bottom of the hopper 21 is provided with a soft auger 34 and a control motor 26 for controlling the soft auger 34. The soft auger 34 One end of the auger is located at the bottom of the hopper 21 and is connected to the control motor 26. The other end of the soft auger 34 extends through the support plate 31 to the top opening of the storage box 33. The above-mentioned soft auger and the control motor are arranged so that The medium particle flux separated from the bottom of the hopper is collected and directly transported to the storage box for secondary use, which realizes the recycling of the flux and effectively avoids the waste of the flux material.

The above-mentioned welding torch and soft auger are existing products on the market at present, which are the prior art, and will not be repeated here. The above-mentioned hose can transport the flux in the storage box along with the welding of the welding torch, so as to maintain the continuity of welding. , Before welding, pour the raw material directly into the top of the primary filter in the hopper, through the separation of the primary filter and the secondary filter, the appropriate medium volume flux falls to the bottom of the hopper, and the motor is controlled to drive the soft auger Start, the soft auger conveys the medium volume flux into the storage box to realize the feeding of the flux. During the welding process, the medium volume flux that falls to the bottom of the hopper is guided by the arc guide, and the medium volume flux is guided by the soft auger again. It is transported to the storage box to realize the secondary utilization and automatic circulation of the flux.

The bottom of the storage box 33 is provided with a plurality of compression springs 331 connected to the support plate 31, and the outer wall of the storage box 33 is provided with a laser ranging sensor 332, and the laser ranging sensor 332 is electrically connected with the external frequency converter 333 through a wire, The setting of the above-mentioned laser ranging sensor can cooperate with the compression spring to set the load-bearing limit of the storage box, so that after the storage box sinks for a certain distance, the laser ranging sensor can detect the distance between the storage box and the support plate by detecting the distance between the storage box and the support plate. Change, detect whether the flux in the storage box is overweight, so as to control the start and stop of the control motor through the inverter, and prevent the overflow of the flux in the storage box from being transported too much, resulting in waste.

The above-mentioned laser ranging sensors and frequency converters are both existing products on the market and are existing technologies, which will not be repeated here. The flux in the storage box is stored, so that when the flux in the storage box is too much, the inverter will control the motor to stop and stop the conveying of the flux by the soft auger. When the flux in the storage box is too small, The storage box will be moved up by the rebound of the compression spring. At this time, the laser ranging sensor detects the size of the distance, and controls the motor to turn on through the frequency converter, and controls the motor to start the soft auger to transport the flux again, so as to realize the internal control of the storage box. Automatic control of flux reserves.

The flux storage in the above-mentioned storage tank can also be detected by a load cell, and a load cell is set between the top of the support plate and the bottom of the storage tank, and the total mass of the weighed flux is used to determine whether to continue to transport the flux. The feeding of the soft auger can be stopped when the quality is satisfied, otherwise, the feeding of the soft auger is maintained.

The flux storage in the above storage box can also be controlled by the mechanical limit switch to start and stop the feeding of the soft auger. When the quality of the flux in the storage box is overweight, the storage box will move down and toggle the mechanical limit. switch and limit switch will stop the feeding of the soft auger. When the quality of the flux in the storage box is too low, the storage box will be moved up by the rebound of the compression spring, and the mechanical limit switch will be toggled again. The dragon thus starts to feed again.

Claims

A submerged arc welding flux recovery, separation and discharge recycling device is characterized in that: it comprises an arc-shaped material guide (1) arranged on the outer wall of a tank body workpiece, and an inner side of the arc-shaped material guide (1) is provided with a A material guide trough (11) surrounding the welding part of the workpiece of the tank body, a movable automatic welding seam device is provided above the top of the arc-shaped material guide (1), and a bottom end of the arc-shaped material guide (1) is provided with a movable automatic welding seam device. A support frame (2) communicated with the material guide trough (11) is arranged below, a hopper (21) is arranged on the support frame (2), and the arc-shaped material guide (1) can be automatically turned over and connected to the tank body Workpiece separation.

2. The submerged arc welding flux recovery, separation and discharge recycling device according to claim 1, characterized in that: the outer upper end of the support frame (2) is provided with a driving cylinder connected to the outer wall of the arc-shaped material guide (1). (12), the inner upper end of the support frame (2) is provided with a top plate (22), and the arc-shaped material guide (1) and the top plate (22) are rotatably connected.

3. The submerged arc welding flux recovery, separation and discharge recycling device according to claim 2, characterized in that: the top plate (22) can be turned upside down on the support frame (2), and the top plate (22) and the arc-shaped A connecting rod (13) is arranged between the material guides (1), one end of the connecting rod (13) is rotatably connected to the top plate (22), and the other end of the connecting rod (13) is connected to the arc-shaped material guide (13). 1) Rotating connection, the upper end of the top plate (22) is provided with a slot (221).

4. The submerged arc welding flux recovery, separation and discharge recycling device according to claim 1, characterized in that: a vibrator (211) is provided on the outer wall of the hopper (21), and a vibrator (211) is arranged on the outer wall of the hopper (21). A first-level filter screen (23) and a second-level filter screen (24) are arranged in sequence from the bottom.

5. The submerged arc welding flux recovery, separation and discharge recycling device according to claim 4, characterized in that: the first-stage filter screen (23) is inclined downward toward one side of the hopper (21), and the hopper ( 21) A first discharge port (231) is provided at the position close to the lowest position of the first-stage filter screen (23), and a plurality of first gears arranged at intervals are arranged on the top surface of the first-stage filter screen (23). strips (232), each of the first blocking strips (232) is arranged along a direction perpendicular to the inclination direction of the primary filter screen (23).

6. The submerged arc welding flux recovery, separation, and discharge recycling device according to claim 4, characterized in that: the lower part of the secondary filter screen (24) is provided with a downward inclination toward one side of the hopper (21). A baffle (25), the hopper (21) is provided with a second discharge port (251) at a position close to the lowest position of the baffle (25).

7. The submerged arc welding flux recovery, separation and discharge recycling device according to claim 4 or 6, characterized in that: the secondary filter screen (24) comprises a first inclination that is symmetrically arranged and inclined downward toward both sides. part (241) and a second inclined part (242), a gap is formed between the lowest part of the first inclined part (241) and the inner wall of the hopper (21), and the lowest part of the second inclined part (242) There is a gap between the hopper (21) and the inner wall of the hopper (21), and a plurality of first inclined parts (241) and the top surface of the second inclined part (242) are provided with a plurality of first inclined parts at intervals along the inclined direction. Second stop bar (243).

8. The submerged arc welding flux recovery, separation and discharge recycling device according to claim 1, characterized in that: the top of the arc-shaped material guide (1) is provided with a gap (14), and the automatic welding device comprises: A horizontally arranged and horizontally movable support plate (31), a welding torch (32) penetrated in the gap (14) and vertically arranged on the support plate (31), and a material storage box arranged above the support plate (31) (33), the welding torch (32) communicates with the bottom of the storage tank (33) through a hose (321).

9. The submerged arc welding flux recovery, separation and discharge recycling device according to claim 8, characterized in that: the bottom of the hopper (21) is provided with a soft auger (34) and a soft auger (34) for controlling the soft auger (34) The control motor (26), one end of the soft auger (34) is set at the bottom of the hopper (21) and connected with the control motor (26), and the other end of the soft auger (34) passes through the support plate (31) extends over the top opening of the hopper (33).

10. The submerged arc welding flux recovery, separation, and discharge recycling device according to claim 8, wherein the bottom of the storage box (33) is provided with a plurality of compression springs (331) connected to the support plate (31). ), a laser ranging sensor (332) is provided on the outer wall of the storage box (33), and the laser ranging sensor (332) is electrically connected to an external frequency converter (333) through a wire.