A slag removal system for flame cutting equipment

Abstract

This application discloses a slag removal system for flame cutting equipment, relating to the field of flame cutting equipment technology. This application optimizes and improves the structure of existing slag removal devices for flame cutting equipment by installing a rigid plate at an angle near the cutting flame at the top of the slag container. Water is sprayed from above the rigid plate onto its top surface via a water pipe, causing the water to impact the top surface and form a water curtain. This water curtain impacts and carries away the slag generated during the cutting operation, rapidly and efficiently cooling the slag and effectively reducing dust dispersion and filter layer damage. By adjusting the water spray volume per unit time, the shape and landing point of the water curtain are changed, preventing slag accumulation and fully utilizing the filter layer and container capacity. Adjusting the water spray volume and landing point allows the water curtain to repeatedly impact the slag on the filter layer, aiding in the efficient and thorough separation of the slag.

Description

Technical Field

[0001] This invention relates to the field of flame cutting equipment technology, and in particular to a slag removal system for flame cutting equipment. Background Technology

[0002] Flame cutting machines are important steelmaking continuous casting equipment, mainly used to cut the cast billets pulled from the crystallizer by the straightening machine into steel billets with specific lengths and cross-sectional shapes. During the continuous casting process, flame cutting machines will generate cutting slag (iron oxide scale and a large amount of metal dust) when cutting billets.

[0003] To collect the aforementioned slag, containers for collecting slag are often installed below the flame cutting machine in the steelmaking continuous casting workshop. When the flame cutting machine cuts the steel billet, the slag falls into these containers. To cool the slag in a timely manner, reduce its damage to the containers, and reduce dust dispersion, these containers are usually filled with a certain amount of water for cooling the slag. To avoid the cooling water in the container being too close to the flame sprayed by the cutting machine, which would cause the flame (cutting flame) to heat the water in the container and generate a large amount of water vapor (due to continuous heating and / or boiling, a large amount of water vapor is generated), affecting the air pressure and thus affecting the stability of the flame and the cutting effect, the water level in the container needs to be set at least 55 cm away from the flame. To achieve the separation of slag and dust, a filter layer (usually a metal filter screen) is usually installed below the water level in the container.

[0004] While the above-mentioned method (using a simple method of setting up a water-containing container with a filter layer inside to collect cutting debris) can effectively collect most of the cutting debris and achieve a certain degree of cutting debris separation, it is limited by its own structure and relies entirely on the natural settling of the cutting debris by its own weight to achieve collection and separation. The cutting debris will accumulate in large quantities directly below the flame nozzle, requiring the container to be replaced after collecting only a small amount of cutting debris, resulting in a small effective capacity and insufficient utilization of the filter layer. After the cutting debris (a mixture of iron oxide scale and metal dust) falls onto the filter layer (after completing the falling and rolling motion), it is basically in a stationary state, resulting in poor separation effect and low efficiency. Because the flame is far from the water level, the dust generated after cutting splashes and spreads in the air over a large area for a long time.

[0005] Therefore, there is a need for a slag treatment system for flame cutting equipment that has high capacity utilization, full utilization of filter layer, high efficiency in slag separation, strong operational stability, sufficient and timely slag cooling, and good dust reduction effect. Summary of the Invention

[0006] This application provides a slag removal system for flame cutting equipment, which solves the technical problems of low capacity utilization and filter layer utilization of slag removal devices used in existing flame cutting equipment, low slag separation efficiency and poor effect, insufficient slag cooling and poor dust reduction effect. The system achieves the technical effects of high capacity utilization of the slag container, full utilization of the filter layer, high slag separation efficiency and good effect, strong stability in use, sufficient and timely slag cooling and good dust reduction effect.

[0007] This application provides a slag discharge treatment system for a flame cutting equipment, installed below the flame cutting machine, including a slag cooling component and a slag receiving container;

[0008] The slag cooling assembly includes a liquid spraying unit and a water supply assembly;

[0009] The spray treatment unit includes a water curtain generating plate and a spray pipe;

[0010] The top surface of the water curtain generating plate is flat, suspended and inclined, located diagonally below the cutting flame ejected by the flame nozzle. The top surface is more than 15 cm away from the bottom of the cutting flame, and the bottom or higher side is positioned on the plate frame, which is used to achieve positioning.

[0011] The water spray pipe is connected to the water supply component, and the water outlet is located diagonally above the water curtain generating plate. It is positioned on the plate frame by the pipe body frame. The sprayed water column impacts the water curtain generating plate to form a water curtain and impacts the lower part of the cutting flame. The water supply component supplies water to the water spray pipe and controls and adjusts the water supply volume.

[0012] The slag receiving container has an opening at the top and is positioned below the flame cutter to collect and hold the cutting slag. It has a filter layer inside, either horizontally or at an angle.

[0013] Preferably, the angle between the water curtain generating plate and the horizontal ground is 25 to 70 degrees; the angle between the water jet from the water spray pipe and the water curtain generating plate is 15 to 50 degrees.

[0014] Preferably, all flame nozzles of a flame cutting machine share a single water curtain generating plate, which is a horizontally arranged long rectangular strip with multiple water spray pipes.

[0015] Preferably, the water curtain generating plate is a rectangular rigid plate with its length direction parallel to the horizontal ground.

[0016] Preferably, the water curtain generating plate is rotatably connected to the plate carrier, and the axis of rotation is parallel to the horizontal ground; a plate displacement component is positioned on the water curtain generating plate;

[0017] The plate shifting component is a telescopic rod structure or a motor structure. When in use, it drives the water curtain generating plate to rotate, thereby changing its amplitude and generating water curtains with more shapes and landing points to adapt to different objects being cut.

[0018] Preferably, the water curtain generating plate is fan-shaped with upturned corners and multiple radially arranged fan-shaped areas on its top surface. One of these fan-shaped areas is a smooth plane, while the other fan-shaped areas are radially arranged with strip-shaped grooves and / or strip-shaped protrusions. The lengths and / or spacing between the strip-shaped grooves and protrusions on different fan-shaped areas are different. The bottom of the water curtain generating plate is ball-jointed on the plate carrier. The upturned corners are rotatably connected to the linkage displacement component.

[0019] The linkage shifting component is used to drive the water curtain generating plate to move up and down and swing left and right, so that the water column can fall on different fan-shaped areas as needed, thereby generating water curtains of different shapes.

[0020] The linkage displacement assembly includes a horizontal moving rod and a vertical lifting rod; the vertical lifting rod is set vertically, with its bottom positioned on the ground, and is controlled to extend and retract; the horizontal moving rod is set horizontally, fixed to the top of the vertical lifting rod, and is controlled to extend and retract; the raised corner of the water curtain generating plate is positioned on the horizontal moving rod.

[0021] Preferably, each spray treatment unit includes a water curtain generating plate, a plate carrier, a water spray pipe and a pipe carrier, and one flame nozzle is equipped with two spray treatment units; the two spray treatment units equipped with the same flame nozzle are symmetrically arranged, and the sprayed water curtain impacts each other directly below the cutting flame and then sprays towards the filter layer below.

[0022] Preferably, the slag receiving container includes a base container, a filter layer, and a roll carrier plate;

[0023] The basic container is a rectangular block-shaped box container with an open top;

[0024] The filter layer includes a first filter layer and a second filter layer, which are arranged one on top of the other.

[0025] The slag receiving and conveying assembly, multiple reversing rollers, and pressure rollers form the first filter layer; the slag conveying assembly forms the second filter layer.

[0026] The roll carrier plate is a vertically arranged rigid plate, fixed to the top of the base container near one side;

[0027] The slag receiving and conveying assembly is a conveyor belt structure, including two support belt drums and annular filter screens sleeved on the two support belt drums; one end of the two support belt drums is positioned on the inner wall of the base container, and the other end is positioned on the drum carrier plate.

[0028] Multiple commutation rollers are always in contact with the annular filter screen to guide the moving direction of the annular filter screen, so as to cooperate with the pressure belt roller to shape the annular filter screen into an inverted "乁" shape, so as to ensure that the cut slag after screening is output from the basic container while avoiding direct contact with the slag conveying component;

[0029] The pressure belt roller is located at the top of the annular filter screen, close to the reel carrier plate, always in contact with the annular filter screen, horizontally arranged, and the ends are positioned on the inner wall of the basic container;

[0030] The slag conveying component is an inclined conveyor belt structure, one end is positioned on the reel carrier plate, and the other end is positioned at a position close to the bottom of the inner wall of the basic container;

[0031] During the cutting operation, the slag receiving and conveying component and the slag conveying component continuously operate, and while rotating, the filtered iron oxide scale and metal powder are respectively discharged from the basic container.

[0032] Preferably, the slag receiving container includes a basic container, a filter layer and a reel carrier plate;

[0033] The basic container is a rectangular block-shaped box container with an open top;

[0034] The filter layer includes a first filter layer and a second filter layer, which are arranged one above the other; the slag receiving and conveying component and two pressure belt rollers form the first filter layer;

[0035] The reel carrier plate is a vertically arranged rigid plate body, and the number is multiple, and it is fixed at positions close to both sides of the top of the basic container;

[0036] The slag receiving and conveying component is integrally in the shape of a reel, including a first reel, a second reel and a filter belt; the first reel and the second reel are both horizontally arranged, and the two are respectively positioned on the reel carrier plates close to both sides of the top of the basic container, both are higher than the water level, and are both located obliquely above the basic container;

[0037] Both ends of the filter belt are respectively wound and positioned on the first reel and the second reel, and most of the non-wound filter belt is located below the water level under the restriction of the pressure belt roller;​​​​​​​​​​​The unblocking column is a hollow cylinder with a surface covered with sharp cones, and there are one or more of them. The length direction is always the same as the width direction of the base container.

[0042] The unblocking column floats after being placed in water and is positioned in the space enclosed by the annular filter screen or at the bottom of the filter belt, always in contact with the annular filter screen or filter belt. The pointed cone on the unblocking column corresponds to the filter holes on the annular filter screen and filter belt. As the annular filter screen and filter belt move, they drive the unblocking column to rotate, thereby unblocking the filter holes in real time. The impact of the falling water curtain also drives the unblocking column to move up and down, thus assisting in the unblocking process.

[0043] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0044] By optimizing and improving the structure of the slag removal device used in existing flame cutting equipment, a rigid plate is inclinedly installed at the top of the slag container, near the lower part of the cutting flame. Water is sprayed from above the rigid plate (water jet) through a water pipe, causing the sprayed water to impact the top surface of the rigid plate and form a water curtain. The formed water curtain impacts and carries away the slag generated during the cutting operation at a position relatively close to the cutting flame, rapidly and efficiently cooling the slag without generating a large amount of water vapor, effectively reducing dust emission and filter layer damage. By adjusting the water spray volume per unit time, the shape and landing point of the formed water curtain can be changed, avoiding concentrated accumulation of slag and making full use of the filter layer and container capacity. By adjusting the water spray volume and changing the water curtain's impact point, the water curtain repeatedly impacts the slag on the filter layer, assisting in the efficient and thorough separation of the slag. Furthermore, since the water spray does not use nozzles, there is no need to worry about nozzle clogging affecting the normal cooling of the slag. It exhibits strong stability and low requirements for the water quality used. It effectively solves the technical problems of low capacity utilization and filter layer utilization in existing flame cutting equipment's slag discharge devices, low and poor slag separation efficiency, insufficient and untimely slag cooling, and poor dust suppression. This results in a slag treatment system with high capacity utilization of the slag container, full utilization of the filter layer, high and effective slag separation, strong operational stability, and sufficient and timely slag cooling with good dust suppression. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the external structure of the slag removal system of the flame cutting equipment in this application;

[0046] Figure 2 This is a schematic diagram of the slag cooling assembly.

[0047] Figure 3 This is a schematic diagram showing the positional relationship between the flame nozzle and the slag cooling assembly.

[0048] Figure 4This is a schematic diagram showing the positional relationship between the flame nozzle, the slag cooling assembly, and the slag receiving container.

[0049] Figure 5 This is a schematic diagram showing the positional relationship between the two sets of liquid spraying units;

[0050] Figure 6 This is a schematic diagram of the board shifting assembly.

[0051] Figure 7 This is a schematic diagram of the structure of a box-shaped filter layer;

[0052] Figure 8 A schematic diagram of the structure of a fan-shaped water curtain generating plate;

[0053] Figure 9 A schematic diagram of the structure of the fan-shaped water curtain generating plate and the plate carrier;

[0054] Figure 10 This is a schematic diagram showing the positional relationship between the linkage displacement component and the fan-shaped water curtain generating plate;

[0055] Figure 11 This is a schematic diagram of the external structure of the slag receiving container;

[0056] Figure 12 This is a simplified diagram of the internal structure of the slag receiving container;

[0057] Figure 13 This is a schematic diagram showing the positional relationship between the slag receiving and conveying components and the slag conveying components.

[0058] Figure 14 This is a partial structural diagram of the slag conveying assembly;

[0059] Figure 15 A schematic diagram showing the positional relationship between the slag-blocking component and the foundation container;

[0060] Figure 16 A simplified diagram showing the positional relationship between the first roll, the second roll, and the filter belt;

[0061] Figure 17 This is a schematic diagram showing the positional relationship between the dredging column and the filter belt.

[0062] In the picture:

[0063] Flame cutting machine 001, flame nozzle 010, water curtain generating plate 110, plate carrier 120, water spray pipe 130, pipe carrier 140, plate shifting assembly 150, transverse moving rod 161, longitudinal lifting rod 162, slag receiving container 200, first filter layer 210, slag receiving and conveying assembly 211, reversing roller 212, pressure roller 213, base rod 214, isolation ring 215, first drum 216, second drum 217, filter belt 218, second filter layer 220, slag conveying assembly 221, drain outlet 230, overflow outlet 240, drum carrier plate 250, top baffle 260, slag discharge chute 270, slag baffle plate 280, dredging column 290. Detailed Implementation

[0064] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0065] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0067] Example 1:

[0068] like Figures 1 to 4 As shown, the slag removal system of the flame cutting equipment of this application is adapted to use with the flame cutting machine 001 and is installed below the flame cutting machine 001 to collect the slag generated by the flame cutting operation. It includes a slag cooling component and a slag receiving container 200.

[0069] The slag cooling assembly is used to disperse and rapidly cool the falling slag, assist in slag separation, reduce dust, and replenish water to the slag receiving container 200. It includes a liquid spraying unit and a water supply assembly.

[0070] The spray treatment unit includes a water curtain generating plate 110, a plate carrier 120, a water spray pipe 130, and a pipe carrier 140.

[0071] The water curtain generating plate 110 is a rigid plate with a flat top surface. It is suspended and tilted, with an angle of 25 to 70 degrees to the horizontal ground. It is located diagonally below the cutting flame emitted by the flame nozzle 010 of the flame cutting machine 001. The vertical distance between the top surface and the bottom of the cutting flame is greater than 15 centimeters. The water curtain generating plate 110 is positioned on the flame cutting machine 001 or on the ground by the plate carrier 120. The bottom or the raised side of the water curtain generating plate 110 is positioned on the plate carrier 120.

[0072] The plate carrier 120 is a rigid frame, which is composed of poles, columns and / or plates spliced ​​together, and plays the role of supporting the water curtain generating plate 110.

[0073] The water spray pipe 130 is connected to the water supply assembly and is used to spray water jets toward the top surface of the water curtain generating plate 110, serving as a water flow channel. It is directly or indirectly fixed to the plate carrier 120 through the pipe carrier 140. The outlet of the water spray pipe 130 is located diagonally above the water curtain generating plate 110, and the angle between the sprayed water jet and the water curtain generating plate 110 is 15 degrees to 50 degrees.

[0074] The pipe support frame 140 is a rigid frame, which is composed of poles, columns and / or plates, and serves to support the water spray pipe 130.

[0075] The water supply component is used to supply water to the spray pipe 130 and adjust the water supply volume as needed (controlled by the control unit, which is used to control the coordinated operation of various components of the system in this application, preferably a programmable logic controller, which is the prior art and will not be described in detail here), and is connected to the water source. The main body is a combination of pump, pipe and valve.

[0076] The slag receiving container 200 is a rigid container with an open top, placed below the flame cutting machine 001, with its top more than 55 cm from the bottom of the cutting flame, located at the bottom of the slag cooling assembly, and used to collect and contain cutting slag; the slag receiving container 200 has a filter layer arranged horizontally or inclined inside, and a drain outlet 230 is provided on the bottom or side wall near the bottom; the slag receiving container 200 contains water, with the water level at least 2 cm above the filter layer.

[0077] During the cutting operation, the water supply component continuously supplies water to the water spray pipe 130, with intermittent or continuous variations in the water supply volume. This causes the water spray pipe 130 to spray water jets onto the water curtain generating plate 110. The water jets impact the water curtain generating plate 110, forming a water curtain that is sprayed downwards from the cutting flame. The formed water curtain impacts and carries away the cutting debris generated during the cutting operation below the cutting flame. Because the water is continuously flowing and has a relatively fast flow rate, it moves away from the cutting flame before the flame heats it to the point of generating a large amount of water vapor. Since the formed water curtain is relatively close to the cutting flame, it comes into contact with the dust as early as possible (before the dust has spread in large quantities), thus achieving a good dust removal and suppression effect. The formed water curtain can also wash away concentrated cutting debris. The system disperses the slag, preventing it from accumulating and effectively and quickly cooling it. This prevents the slag from damaging the filter layer or condensing (after melting and solidifying) upon contact with it, thus clogging the filter pores. Changes in the water supply from the water supply component alter the shape and landing point of the water curtain, preventing slag from accumulating and fully utilizing the capacity of the filter layer and the slag container 200. It also repeatedly impacts the slag on the filter layer (causing it to agitate), aiding in efficient and thorough slag separation. Furthermore, since the water spray does not require nozzles, there is no need to worry about nozzle clogging affecting the normal cooling and slag removal operation. It is highly stable and has low requirements for the water quality (circulating water can be used, which is relatively water-saving).

[0078] Furthermore, the water curtain generating plate 110 is a rectangular rigid plate with its length direction parallel to the horizontal ground.

[0079] Preferably, the water outlet of the water spray pipe 130 is a flat opening, and the length direction of the water outlet is the same as the length direction of the rectangular water curtain generating plate 110.

[0080] Preferably, each flame nozzle 010 is equipped with a water curtain generating plate 110, which is fixed to the carrier of the flame nozzle 010 by a plate frame 120 and moves with the flame nozzle 010.

[0081] Preferably, all flame nozzles 010 of a flame cutting machine 001 share a water curtain generating plate 110, which is a horizontally arranged long rectangular strip and equipped with multiple water spray pipes 130.

[0082] Preferred, such as Figure 6As shown, the water curtain generating plate 110 is rotatably connected to the plate carrier 120, and the axis of rotation is parallel to the horizontal ground. A plate shifting component 150 is positioned on the water curtain generating plate 110. The plate shifting component 150 is a telescopic rod structure (telescopic cylinder, telescopic hydraulic cylinder, electric telescopic rod) that is controlled to extend and retract (controlled by a control unit) or a motor that directly or indirectly drives the water curtain generating plate 110 to rotate. The plate shifting component 150 is used to drive the water curtain generating plate 110 to rotate, thereby changing its amplitude and generating water curtains with more shapes and landing points to adapt to different cut objects. In use, the angle of the water curtain generating plate 110 is adjusted as needed.

[0083] Preferably, each spray treatment unit includes a water curtain generating plate 110, a plate carrier 120, a water spray pipe 130, and a pipe carrier 140, and one flame nozzle 010 is equipped with two spray treatment units; for example Figure 5 As shown, two liquid spraying units are symmetrically arranged with the same flame nozzle 010. The sprayed water curtain impacts each other directly below the cutting flame and then sprays onto the filter layer below.

[0084] Preferably, the water curtain generating plate 110 is rotatably connected to the plate carrier 120; the water curtain generating plates 110 of the two liquid spraying units matched with the same flame nozzle 010 are each equipped with a plate shifting assembly 150; during use, the angles of the water curtain generating plates 110 of the two liquid spraying units are different and continuously change.

[0085] Furthermore, the filter layer is a metal filter screen.

[0086] Furthermore, such as Figure 4 As shown, the slag receiving container 200 includes a base container and filter layers; the base container is a rigid container with an open top; there are two filter layers, arranged one above the other, namely the first filter layer 210 and the second filter layer 220; the first filter layer 210 and the second filter layer 220 are preferably 10-mesh and 35-mesh filters, respectively. The first filter layer 210 can isolate the cut iron oxide scale, and the second filter layer 220 can isolate most of the metal dust; the water level in the base container is more than three centimeters higher than the first filter layer 210; a drain outlet 230 is provided on the side wall of the base container near the bottom or at the bottom; the drain outlet 230 is equipped with a valve that controls opening and closing; an overflow outlet 240 is provided on the side wall of the base container near the top, and the presence of the overflow outlet 240 ensures that the water level is always higher than the first filter layer 210 by a certain height (e.g., 3 centimeters).

[0087] Furthermore, such as Figure 7 As shown, the main body of the first filter layer 210 and the second filter layer 220 is a rigid box with an opening at the top.

[0088] Furthermore, the base container is equipped with wheels at the bottom, so that the base container can be pushed away and replaced when the target storage volume is reached.

[0089] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0090] By varying the water spray volume, the cutting debris is dispersed, preventing it from accumulating in one place and making full use of the filter layer. The water curtain impacts the cutting debris on the filter layer, promoting more thorough separation and significantly improving separation efficiency. It has good stability and requires almost no maintenance (unlike nozzles, which are prone to clogging and require frequent maintenance). It is water-saving, using recycled water without worrying about nozzle clogging. The formed water curtain can be relatively close to the cutting flame, significantly improving dust suppression without generating a large amount of water vapor that would affect the stability of the flame. It can cool the cutting debris earlier, preventing it from damaging the filter layer. It also serves to replenish water to the container.

[0091] Example 2:

[0092] To further increase the diversity of water curtain shapes and better adapt to different shapes of objects being cut, thereby further improving the applicability of this application, this embodiment modifies the shape of the water curtain generating plate 110 based on the above embodiment, so that the shape of the formed water curtain can be flexibly adjusted as needed, specifically as follows:

[0093] like Figures 8 to 10 As shown, the water curtain generating plate 110 is generally fan-shaped with upturned corners. The top surface has multiple radially arranged fan-shaped areas, one of which is a smooth plane. The other fan-shaped areas have radially arranged grooves and / or protrusions. The length direction of the grooves and protrusions is the same as or approximately the same as the radial direction of the water curtain generating plate 110. The lengths and / or spacing of the grooves and protrusions in different fan-shaped areas vary. The bottom of the water curtain generating plate 110 is ball-jointed to the plate carrier 120. The upturned corners are rotatably connected (hinged or ball-jointed) to the linkage displacement assembly.

[0094] The linkage shifting component is used to drive the water curtain generating plate 110 to move up and down (amplitude change) and swing left and right, so that the water column can fall on different fan-shaped areas as needed (change the landing point), thereby generating water curtains of different shapes.

[0095] The linkage displacement assembly includes a transverse moving rod 161 and a longitudinal lifting rod 162. The longitudinal lifting rod 162 is longitudinally arranged, with its bottom positioned on the ground, and is an electric telescopic rod, telescopic cylinder, or telescopic hydraulic cylinder, capable of controlled extension and retraction. The transverse moving rod 161 is transversely arranged and fixed to the top of the longitudinal lifting rod 162, and is also an electric telescopic rod, telescopic cylinder, or telescopic hydraulic cylinder, capable of controlled extension and retraction. The raised corner of the water curtain generating plate 110 is positioned on the transverse moving rod 161. When the water curtain generating plate 110 needs to be positioned in a specific posture, this is achieved by controlling the extension and retraction of the transverse moving rod 161 and the longitudinal lifting rod 162.

[0096] Example 3:

[0097] To further enhance the automation level of this application and reduce the impact of replacing the slag receiving container 200 on the cutting operation (making it unnecessary to replace the slag receiving container 200), while further improving the slag separation effect and efficiency, the structure of the slag receiving container 200 has been optimized and improved based on the above embodiments, specifically as follows:

[0098] like Figures 11 to 13 As shown, the slag receiving container 200 includes a base container, a filter layer, and a roll carrier plate 250;

[0099] The basic container is a rectangular block-shaped box container with an open top;

[0100] The filter layer includes a first filter layer 210 and a second filter layer 220, which are arranged one on top of the other.

[0101] The slag receiving and conveying assembly 211, multiple reversing rollers 212 and pressure rollers 213 form the first filter layer 210; the slag conveying assembly 221 forms the second filter layer 220.

[0102] The roller carrier plate 250 is a vertically arranged rigid plate, fixed to the top of the base container near one side, and serves to support the slag receiving and conveying assembly 211 so that the filtered slag can be output.

[0103] The slag receiving and conveying component 211 is a conveyor belt structure as a whole, including two supporting rollers and an annular filter screen sleeved on the two supporting rollers; both of the two supporting rollers are horizontally arranged, the end of one of them is positioned on the inner wall of the basic container, and the end of the other is positioned on the roller carrier plate 250, and at least one of them is internally provided with a motor or rotates under the drive of a motor; the supporting roller positioned on the roller carrier plate 250 is obliquely above the basic container; the annular filter screen is a ring-shaped strip metal mesh, which plays a role in screening and separating slag, and the distance between the edge of the annular filter screen and the inner wall of the basic container is less than 0.5 cm; a plurality of reversing rollers 212 are all horizontally arranged, always in contact with the annular filter screen, located in the space enclosed by the annular filter screen or at the bottom of the annular filter screen, and are used to guide the moving direction of the annular filter screen, so as to cooperate with the pressing roller 213 to shape the annular filter screen into an inverted "乁" shape, so as to ensure that the cut slag is output from the basic container while avoiding direct contact with the slag conveying component 221; the pressing roller 213 is located at the top of the annular filter screen, is arranged close to the roller carrier plate 250, always in contact with the annular filter screen, is horizontally arranged, and the end is positioned on the inner wall of the basic container;

[0104] The water level in the basic container is higher than the bottom surface of the pressing roller 213;

[0105] The slag conveying component 221 is an inclined conveyor belt structure, and the annular belt sleeved on it is a filter screen, which is integrally inclined, with one end positioned on the roller carrier plate 250 and the other end positioned at a position close to the bottom of the inner wall of the basic container;

[0106] During the cutting operation, the slag receiving and conveying component 211 and the slag conveying component 221 continuously operate, and while rotating, the filtered (screened out) scale and metal powder are respectively discharged from the basic container.

[0107] Preferably, in order to ensure the slag conveying effect and avoid the cut slag slipping during the conveying process; as Figure 14 shown, a circle of retaining bars is evenly arranged on the outer surface of the belt body of the slag conveying component 221; the retaining bars are strip-shaped, the length direction is parallel to the horizontal ground, and the length is the same as the width of the belt body of the slag conveying component 221.

[0108] Furthermore, the pressing roller 21 includes a base rod 214 and a plurality of isolating annular bodies 215 positioned on the base rod 214; the base rod 214 is a horizontally arranged rigid rod body, and the end is positioned on the inner wall of the basic container; the isolating annular bodies 215 are rigid ring bodies, and the number is multiple, sleeved on the base rod 214, and are used to directly contact the top surface of the annular filter screen to shape the annular filter screen without affecting the conveyance of the cut slag.

[0109] Furthermore, to prevent cutting debris from falling onto the air-dwelling annular filter screen and causing damage, a top baffle 260 is fixed on the roll carrier plate 250; the top baffle 260 is a rigid plate that is horizontally inclined to cover the annular filter screen exposed to the air.

[0110] Furthermore, a slag discharge chute 270 for guiding the output of the separated slag is fixed on the outer wall of the basic container; the slag discharge chute 270 is an inclined rigid plate.

[0111] Preferably, to prevent slag from falling from the gaps between the slag receiving and conveying component 211 and the base container, and the gaps between the slag conveying component 221 and the base container, thus affecting the separation effect, multiple slag baffles 280 are provided on the inner wall of the base container near the aforementioned gaps; the slag baffles 280 are strip-shaped plates, located above and close to the aforementioned gaps, effectively preventing slag from splashing into the aforementioned gaps.

[0112] Preferably, in order to prevent slag from falling from the gap between the slag receiving and conveying component 211 and the base container and the gap between the slag conveying component 221 and the base container, thereby affecting the separation effect, brushes are provided on the inner wall of the base container near the gaps, and these brushes fill the gaps.

[0113] Example 4:

[0114] To prevent the accumulation of cutting debris in the space enclosed by the annular filter screen (although most of the cutting debris accumulated in the space enclosed by the annular filter screen will gradually be filtered out or fall from the edge to the second filter layer 220 over time, its presence in the space enclosed by the annular filter screen will accelerate the wear of the annular filter screen to some extent, affecting the actual service life of the annular filter screen and the support belt drum), this application embodiment has optimized and improved the structure of the slag container 200 based on the above embodiment, specifically as follows:

[0115] like Figure 15 and Figure 16 As shown, the slag receiving container 200 includes a base container, a filter layer, and a roll carrier plate 250;

[0116] The basic container is a rectangular block-shaped box container with an open top;

[0117] The filter layer includes a first filter layer 210 and a second filter layer 220, which are arranged one above the other; the slag receiving and conveying assembly 211 and two pressure rollers 213 form the first filter layer 210; the structure of the second filter layer 220 is the same as in embodiment 3;

[0118] The roll carrier plate 250 is a vertically arranged rigid plate, and there are multiple pieces. It is fixed on the top of the foundation container near both sides to serve as a load-bearing and supporting element.

[0119] The slag receiving and conveying assembly 211 is generally in the shape of a roller, including a first roller 216, a second roller 217, and a filter belt 218. The first roller 216 and the second roller 217 are both arranged horizontally and are respectively positioned on the roller carrier plates 250 on the top of the base container near both sides. Both are above the water level and are located diagonally above the base container. At least one of them has a built-in motor or rotates under the drive of a motor. The filter belt 218 is an annular strip of metal mesh, with both ends wound and positioned on the first roller 216 and the second roller 217 respectively, serving as a screen for slag separation. The distance between the edge and the inner wall of the base container is less than 0.5 cm. Most of the filter belt 218 not wound on the first roller 216 and the second roller 217 is below the water level under the restriction of the pressure roller 213.

[0120] The pressure rollers 213 are located on the top of the filter belt 218, and there are two of them. They are set close to the roll carrier plates 250 on both sides, and always abut against the annular filter screen. They are set laterally, and their ends are positioned on the inner wall of the base container. They also play a certain role in tensioning the filter belt 218.

[0121] The water level in the base container is higher than the bottom surface of the pressure roller 213;

[0122] During the cutting operation, the first drum 216 and the second drum 217 rotate back and forth, replacing the filter belt 218 submerged in water and transporting the filtered cutting residue out from both sides.

[0123] Furthermore, to prevent slag from falling onto the air-dwelling annular filter screen and causing damage, a top baffle 260 is fixed on the roll carrier plate 250; the top baffle 260 is a horizontally arranged rigid plate that covers the filter belt 218 exposed to the air.

[0124] Example 5:

[0125] To further ensure and maintain the separation effect of the filter layer, this embodiment adds a dredging column 290 to the above embodiment, which is used to dredge and maintain the annular filter screen or filter belt 218 in real time; specifically:

[0126] like Figure 17 As shown, the unblocking column 290 is a hollow cylinder with a surface covered with pointed cones. There are one or more of them. The axial length is 1 to 3 centimeters shorter than the width of the base container. The length direction is always the same as the width direction of the base container.

[0127] The unblocking column 290 floats after being submerged in water. During use, it is placed within the space enclosed by the annular filter screen or at the bottom of the filter belt 218, always in contact with the screen or belt. The pointed cone on the unblocking column 290 corresponds to the filter holes on the annular filter screen and filter belt 218. As the annular filter screen and filter belt 218 move, they rotate the unblocking column 290, thus unblocking the filter holes in real time. The impact of the falling water curtain also causes the unblocking column 290 to move up and down, further enhancing the unblocking effect. The unblocking column 290 requires no additional power and has good stability, enabling timely unblocking of the filter holes clogged with cutting debris (further effectively preventing the cutting debris from melting and clogging the filter holes due to residual heat). When the water curtain impacts the unblocking column 290, the up-and-down movement of the column causes the water near the filter holes to flow rapidly, flushing the filter holes while assisting in the separation of cutting debris and heat exchange.

[0128] Preferably, a dredging column 290 is also provided at the bottom of the second filter layer 220. The dredging column 290 located here is positioned in the base container by a soft rope positioned at the end of the dredging column 290; the end of the soft rope is rotatably connected to the dredging column 290 or the inner wall of the base container.

[0129] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A slag removal system for a flame cutting device, installed below the flame cutting machine (001), characterized in that: Includes slag cooling components and slag receiving container (200); The slag cooling assembly includes a liquid spraying unit and a water supply assembly; The spray treatment unit includes a water curtain generating plate (110) and a water spray pipe (130); The top surface of the water curtain generating plate (110) is flat, suspended and inclined, located diagonally below the cutting flame ejected by the flame nozzle (010), with the top surface being more than 15 cm away from the bottom of the cutting flame, and the bottom or higher side being positioned on the plate carrier (120), and the positioning is achieved through the plate carrier (120). The water spray pipe (130) is connected to the water supply assembly, and the outlet is located diagonally above the water curtain generating plate (110). It is positioned on the plate carrier (120) by the pipe carrier (140). The sprayed water jet impacts the water curtain generating plate (110) to form a water curtain and impacts the area below the cutting flame. The water supply assembly supplies water to the water spray pipe (130) and controls and adjusts the water supply volume. The slag receiving container (200) has an opening at the top and is located below the flame cutter (001) for collecting and containing cutting slag. The interior is provided with a filter layer, either horizontally or at an angle. The water curtain generating plate (110) is rotatably connected to the plate carrier (120), and the axis of rotation is parallel to the horizontal ground; a plate shifting component (150) is positioned on the water curtain generating plate (110); The plate shifting component (150) is a telescopic rod structure or a motor structure. When in use, it drives the water curtain generating plate (110) to rotate, thereby changing its amplitude and generating water curtains with more shapes and landing points to adapt to different objects being cut.

2. The slag removal system of the flame cutting equipment as described in claim 1, characterized in that: The angle between the water curtain generating plate (110) and the horizontal ground is 25 to 70 degrees; the angle between the water jet from the water spray pipe (130) and the water curtain generating plate (110) is 15 to 50 degrees.

3. The slag removal system of the flame cutting equipment as described in claim 1, characterized in that: All flame nozzles (010) of a flame cutting machine (001) share a water curtain generating plate (110), which is a horizontally arranged long rectangular strip and equipped with multiple water spray pipes (130).

4. The slag removal system of the flame cutting equipment as described in claim 1, characterized in that: The water curtain generating plate (110) is a rectangular rigid plate with its length parallel to the horizontal ground.

5. The slag removal system of the flame cutting equipment as described in claim 1, characterized in that: The water curtain generating plate (110) is generally fan-shaped with upturned corners. The top surface has multiple fan-shaped areas arranged radially. One of these fan-shaped areas is a smooth plane, while the other fan-shaped areas are radially provided with strip-shaped grooves and / or strip-shaped protrusions. The lengths and / or spacing between the strip-shaped grooves and protrusions on different fan-shaped areas are different. The bottom of the water curtain generating plate (110) is ball-jointed on the plate carrier (120). The upturned corners are rotatably connected to the linkage displacement component. The linkage shifting component is used to drive the water curtain generating plate (110) to move up and down and swing left and right, so that the water column can fall on different fan-shaped areas as needed, thereby generating water curtains of different shapes. The linkage displacement component includes a transverse displacement rod body (161) and a longitudinal lifting rod (162); the longitudinal lifting rod (162) is longitudinally arranged, positioned on the ground at the bottom, and controlled to expand and contract; the transverse displacement rod body (161) is transversely arranged, fixed at the top of the longitudinal lifting rod (162), and controlled to expand and contract; the tilted corner of the water curtain generating plate (110) is positioned on the transverse displacement rod body (161).

6. The slag removal system of the flame cutting equipment as described in any one of claims 1 to 5, characterized in that: Each liquid spraying treatment unit includes a water curtain generating plate (110), a plate body carrier (120), a water spraying pipe (130), and a pipe body carrier (140). One flame nozzle (010) is paired with two liquid spraying treatment units; the two liquid spraying treatment units paired with the same flame nozzle (010) are symmetrically arranged, and the ejected water curtains shoot towards each other directly below the cutting flame and then spray downward onto the filter layer.

7. The slag removal system of the flame cutting equipment as described in claim 1, characterized in that: The slag receiving container (200) includes a base container, a filter layer, and a reel carrier plate (250); The base container is a rectangular block-shaped box container with an open top; The filter layer includes a first filter layer (210) and a second filter layer (220), which are arranged one above the other; The slag receiving conveying component (211), multiple reversing rollers (212), and a pressing belt roller (213) form the first filter layer (210); the slag conveying component (221) forms the second filter layer (220); The reel carrier plate (250) is a vertically arranged rigid plate body, fixed at a position near one side of the top of the base container; The slag receiving conveying component (211) is an overall conveyor belt structure, including two belt supporting reels and an annular filter screen sleeved on the two belt supporting reels; the end of one of the two belt supporting reels is positioned on the inner wall of the base container, and the end of the other is positioned on the reel carrier plate (250); Multiple reversing rollers (212) always abut against the annular filter screen, used to guide the moving direction of the annular filter screen, so as to cooperate with the pressing belt roller (213) to shape the annular filter screen into an inverted "乁" shape, so as to ensure that the screened cutting slag exits the base container while avoiding direct contact with the slag conveying component (221); The pressing belt roller (213) is located at the top of the annular filter screen, arranged near the reel carrier plate (250), always abuts against the annular filter screen, is transversely arranged, and the ends are positioned on the inner wall of the base container; The slag conveying component (221) is an inclined conveyor belt structure, one end is positioned on the reel carrier plate (250), and the other end is positioned at a position near the bottom of the inner wall of the base container; During the cutting operation, the slag receiving conveying component (211) and the slag conveying component (221) continuously operate, and while rotating, discharge the filtered iron oxide scale and metal powder out of the base container respectively.

8. The slag removal system of the flame cutting equipment as described in claim 1, characterized in that: The slag receiving container (200) includes a base container, a filter layer, and a reel carrier plate (250); The base container is a rectangular block-shaped box container with an open top; The filter layer includes a first filter layer (210) and a second filter layer (220), which are arranged one above the other; the slag receiving conveying component (211) and two pressing belt rollers (213) form the first filter layer (210); The roll carrier plate (250) is a vertically arranged rigid plate, and there are multiple pieces of it, which are fixed to the top of the base container near both sides. The slag receiving and conveying assembly (211) is generally in the shape of a roller, including a first roller (216), a second roller (217) and a filter belt (218); the first roller (216) and the second roller (217) are both arranged horizontally, and are respectively positioned on the roller carrier plates (250) on the top of the base container near the two sides. Both are higher than the water level and are located diagonally above the base container. The filter belt (218) is wound and positioned on the first roll (216) and the second roll (217) at both ends, and most of the unwound filter belt (218) is below the water level under the restriction of the pressure roller (213); The pressure roller (213) is located on the top of the filter belt (218), there are two of them, they are set close to the roll carrier plate (250) on both sides, always in contact with the annular filter screen, are set laterally, and the ends are positioned on the inner wall of the base container; During the cutting operation, the first drum (216) and the second drum (217) rotate back and forth, replacing the filter belt (218) submerged in water and transporting the filtered cutting residue out from both sides.

9. The slag removal system of the flame cutting equipment as described in claim 7 or 8, characterized in that: It also includes drainage columns; The unblocking column (290) is a hollow cylinder with a surface covered with pointed cones, and there are one or more of them. The length direction is always the same as the width direction of the base container. The unblocking column (290) floats after being placed in the water and is placed in the space enclosed by the annular filter screen or at the bottom of the filter belt (218), always in contact with the annular filter screen or filter belt (218); the pointed cone on the unblocking column (290) corresponds to the filter holes on the annular filter screen and filter belt (218); during the movement of the annular filter screen and filter belt (218), the unblocking column (290) is driven to rotate, thereby unblocking the filter holes in real time; the impact of the falling water curtain will also drive the unblocking column (290) to move up and down, thereby assisting in the unblocking process.

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