Automatic slag flushing device for slag grabbing hopper

Abstract

The invention is suitable for the technical field of slag grabbing devices, and provides an automatic slag flushing device for a slag grabbing bucket, which comprises a lifting platform, a base, a mounting cavity, a slag grabbing bucket main body, a hydraulic system, an upper fixed seat, a lower fixed seat, a front lug seat, a rear lug seat, a lifting mechanism, a slag flushing mechanism and a linkage mechanism, one end of the linkage mechanism is respectively connected with the lifting mechanism and the slag flushing mechanism, and the other end of the linkage mechanism is rotationally connected with a rear lug seat on the slag grabbing bucket main body; the linkage mechanism, the lifting mechanism and the slag flushing mechanism can be linked only through opening and contracting of the slag grabbing hopper body, seamless connection of the actions of grabbing, blocking and gas storage or releasing, downward moving and slag flushing can be completed, cooperative control of multiple sets of sensors and an electric control unit is replaced with mechanical linkage, the fault rate of electrical elements is reduced, and the reliability of the system is improved. And the equipment maintenance cost is reduced, the operation reliability under the severe working condition is improved, the continuous operation requirement of slag grabbing and transferring in the smelting scene is met, and the overall equipment operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of slag grabbing devices, and particularly relates to an automatic slag flushing device for a slag grabbing bucket. BACKGROUND

[0002] In the smelting industry such as steel and metallurgy, the grabbing and transferring of iron ore is a core link connecting the mining and smelting processes, and the operation efficiency and slag cleaning effect directly affect the continuous operation of the smelting production line and the product quality. The iron ore is prone to sintering or sticky adhesion under high-temperature working conditions, forming slag residues on the inner wall of the slag grabbing bucket. If not cleaned in time, the subsequent grabbed iron ore will have problems such as mixed composition, thereby affecting the qualified rate of smelting products.

[0003] The existing automatic slag flushing device for the slag grabbing bucket sets a water storage tank with a top opening on the support beam of the slag grabbing bucket, and opens a first water flushing port at the bottom of the water storage tank towards the pulling mechanism. The slag grabbing bucket can store water in the water storage tank during operation, and then flush out water through the first water flushing port, so as to flush away the accumulated slag at the bottom of the pulling mechanism and the support beam, realize the effect of automatic slag flushing, save the work and time of cleaning the support beam, and improve the production efficiency.

[0004] The existing device still has multi-dimensional technical defects in actual use. First, the slag flushing medium is water, which will react with the slag in a high-temperature environment to generate a sticky compound and adhere to the slag bucket, increasing the difficulty of slag flushing. Moreover, the residual water after slag flushing will penetrate into the subsequent grabbed iron ore, thereby increasing the moisture content of the raw material and affecting the production quality of the smelting product. Second, the existing water storage tank is designed with a top opening, and dust or broken ore particles in the smelting scene are easy to fall into the tank, not only polluting the slag flushing water, but also depositing sludge at the bottom of the water tank. When these impurities enter the first water flushing port with the water flow, they are easy to cause the blockage of the water flushing port, which requires regular shutdown and disassembly of the water tank for cleaning, affecting the continuity of smelting production.

[0005] Therefore, in view of the above status, it is urgent to develop an automatic slag flushing device for a slag grabbing bucket to overcome the deficiencies in current actual applications. SUMMARY

[0006] In view of the deficiencies of the prior art, the purpose of the embodiments of the present application is to provide an automatic slag flushing device for a slag grabbing bucket to solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] An automatic slag flushing device for a slag grabbing bucket includes a lifting platform located at the bottom of a base and cooperating with an installation cavity formed at the bottom of the base. A slag grabbing bucket body and a hydraulic system are distributed circumferentially on the outer periphery of the base. An upper fixed seat and a lower fixed seat are distributed circumferentially on the outer wall of the base. The tail end of the hydraulic system is mounted on the upper fixed seat, and the output end of the hydraulic system is connected to a front ear seat provided on the slag grabbing bucket body. The slag grabbing bucket body is mounted on the lower fixed seat, and a rear ear seat is provided on the side of the slag grabbing bucket body near the base. The slag grabbing bucket body adopts an arc-shaped plate structure with inconsistent curvature at the top and bottom. The device also includes:

[0009] A lifting mechanism is installed in the mounting cavity, and one end of the lifting mechanism is connected to the top of the lifting platform;

[0010] The slag flushing mechanism is installed in the installation cavity. One end of the slag flushing mechanism is fixed to the top of the lifting platform, and the other end of the slag flushing mechanism is connected to a gas storage tank that is also fixed in the installation cavity. The gas storage tank stores slag flushing gas for flushing slag.

[0011] The linkage mechanism is installed in the installation cavity. One end of the linkage mechanism is connected to the lifting mechanism and the slag flushing mechanism respectively, and the other end of the linkage mechanism passes through the lateral groove opened on the side wall of the base and is rotatably connected to the rear ear seat on the slag grab bucket body.

[0012] As a further technical solution of the present invention, the bending direction of the slag grabbing bucket body is towards the base, and the top area of ​​the slag grabbing bucket body adopts an arc with a large radius of curvature, wherein the radius of curvature of the lower area gradually decreases.

[0013] As a further technical solution of the present invention, the linkage mechanism includes a linkage rod, a traction rod and a connecting rod. One end of the linkage rod is rotatably connected to the rear ear seat, and the other end of the linkage rod passes through the lateral groove and is rotatably connected to the traction rod disposed inside the mounting cavity. Connecting rods are installed on both the left and right ends of the traction rod, and the two connecting rods are respectively connected to the lifting mechanism and the slag flushing mechanism.

[0014] As a further technical solution of the present invention, the lifting mechanism includes a control component, a lifting component, and a fixed frame. The fixed frame is fixed on the inner wall of the mounting cavity. One end of the lifting component is vertically slidably connected to the fixed frame, and the other end of the lifting component is vertically fixedly connected to the top of the lifting platform. One end of the control component is horizontally slidably mounted on the fixed frame and connected to a connecting rod. The other end of the control component is rotatably mounted on the fixed frame and slidably connected to the lifting component.

[0015] As a further technical solution of the present invention, the lifting assembly includes a left guide column, a right guide column and a spiral guide groove. The left guide column and the right guide column are parallel to each other and are both vertically fixed on the top of the lifting platform. One end of the left guide column and the right guide column are vertically slidably connected to the fixing frame. The outer wall of the left guide column is provided with a spiral guide groove that is slidably connected to the control assembly.

[0016] As a further technical solution of the present invention, the control component includes a rack, a slide block, a gear, a rotating component, and a sliding column. The slide block is horizontally fixed on one side of the fixed frame. A rack is horizontally slidably mounted on the slide block. One end of the rack is connected to a connecting rod. The rotating component is rotatably mounted on the fixed frame via a bearing and is located outside the left guide column. The rotating component is concentric with the left guide column. A sliding column that is slidably connected to a spiral guide groove is vertically fixed on the inner wall of the rotating component. A gear that meshes with the rack is fixed on the outer wall of the rotating component.

[0017] As a further technical solution of the present invention, the bottom of both the left guide post and the right guide post are vertically fixed with sleeves, and the sleeves are used for one end of the slag flushing mechanism to pass through.

[0018] As a further technical solution of the present invention, the slag flushing mechanism includes a pumping component, a transfer cylinder, and a slag flushing component. The pumping component is installed in the installation cavity. One end of the pumping component is connected to another connecting rod, and the other end of the pumping component is connected to the transfer cylinder and the air storage tank respectively. The transfer cylinder is fixed on the top of the lifting platform. Slag flushing components are distributed around the transfer cylinder, and the transfer cylinder has an air inlet hole around its circumference that cooperates with the slag flushing components. Two slag flushing components pass through the sleeves on the left guide column and the right guide column respectively.

[0019] As a further technical solution of the present invention, the pumping assembly includes a pumping rod, a pumping cylinder, a piston, an air supply pipe, and an air inlet pipe. The pumping cylinder is fixed in the mounting cavity. An air supply pipe and an air inlet pipe are respectively installed at one end of the pumping cylinder. The air supply pipe is connected to the interior of the transfer cylinder, and the air inlet pipe is connected to the air storage tank. Both the air supply pipe and the air inlet pipe are provided with one-way valves. A piston is slidably installed inside the pumping cylinder. A pumping rod is vertically fixed on one side of the piston. One end of the pumping rod extends outside the pumping cylinder and is connected to another connecting rod.

[0020] As a further technical solution of the present invention, the slag flushing assembly includes a fixed cylinder, a telescopic cylinder, a connecting cylinder, an arc-shaped seat, a nozzle, a rotating baffle, a telescopic spring, and a flow guiding spring. The fixed cylinder is perpendicular to the transfer cylinder and is circumferentially distributed on the outer wall of the transfer cylinder. The telescopic cylinder is horizontally slidably installed on the fixed cylinder. The connecting cylinder is slidably installed inside the telescopic cylinder. The connecting cylinder is connected to the transfer cylinder through an air inlet. An arc-shaped seat is fixed on one side of the connecting cylinder. Nozzles are circumferentially distributed on the outer side of the arc-shaped seat. The nozzles are connected to the arc-shaped seat and the connecting cylinder respectively. The outer wall of the connecting cylinder is connected to the outer wall of the transfer cylinder through the telescopic spring. A rotating baffle is rotatably installed inside the connecting cylinder. One side of the rotating baffle is connected to the inner wall of the arc-shaped seat through the flow guiding spring. The elastic force of the flow guiding spring is less than the elastic force of the telescopic spring.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The linkage mechanism, lifting mechanism, and slag flushing mechanism can be activated by simply opening and closing the main body of the slag grabbing bucket. When multiple hydraulic systems drive their respective slag grabbing bucket bodies to the retracted state simultaneously, the lifting mechanism can move the lifting platform upwards to seal the installation cavity, and the slag flushing mechanism can temporarily store the slag flushing gas. When the slag grabbing bucket body is releasing the grabbed iron ore, the lifting mechanism can move one end of the slag flushing mechanism to the same height as the top area of ​​the slag grabbing bucket body via the lifting platform. The slag flushing mechanism can then spray the temporarily stored slag flushing gas onto the inner wall of the top area of ​​the slag grabbing bucket body, achieving automatic slag grabbing bucket operation. Slag flushing; this allows for a seamless connection between the actions of "grabbing-sealing-gas storage" or "releasing-lowering-slag flushing". By replacing the coordinated control of multiple sets of sensors and electrical control units through mechanical linkage, the failure rate of electrical components is reduced, equipment maintenance costs are lowered, and the operational reliability under harsh working conditions is improved. It is adapted to the continuous operation requirements of slag grabbing and transfer in smelting scenarios and improves the overall equipment operating efficiency. Moreover, by using the slag flushing gas injection method, the drawbacks of liquid slag flushing can be avoided. For example, liquid may evaporate, scale, or react with slag in a high-temperature environment, causing secondary blockage. In addition, liquid may leave moisture after slag flushing, leading to slag agglomeration or equipment corrosion.

[0023] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 This is a top-side structural view of the automatic slag flushing device with a slag grabbing bucket provided in an embodiment of the present invention.

[0025] Figure 2 This is a side view of the automatic slag flushing device provided in an embodiment of the present invention.

[0026] Figure 3 for Figure 1 A top view of the internal structure of the central base.

[0027] Figure 4 for Figure 3 A schematic diagram of the structure of the main body of the slag grabber, the lifting platform, the linkage mechanism, the lifting mechanism and the slag flushing mechanism.

[0028] Figure 5 for Figure 4 Side view of the structure from below.

[0029] Figure 6 for Figure 5 A schematic diagram of the lifting mechanism.

[0030] Figure 7 for Figure 6 A cross-sectional view of the lifting mechanism.

[0031] Figure 8 for Figure 6 Exploded view of the central lifting mechanism.

[0032] Figure 9 for Figure 7 Enlarged view of the structure at point A in the middle.

[0033] Figure 10 for Figure 4 A schematic diagram of the slag flushing mechanism.

[0034] Figure 11 for Figure 10 A cross-sectional view of the structure of the rotating drum and slag flushing assembly.

[0035] Figure 12 for Figure 11 Enlarged view of the structure at point B.

[0036] Reference numerals: 100-Base, 110-Lower fixed seat, 120-Upper fixed seat, 130-Mounting cavity, 140-Side groove, 200-Slag grab bucket body, 210-Front ear seat, 220-Rear ear seat, 300-Hydraulic system, 400-Lifting platform, 500-Linkage mechanism, 510-Linkage rod, 520-Traction rod, 530-Connecting rod, 600-Lifting mechanism, 610-Control component, 611-Rack, 612-Slide seat, 613-Gear, 614-Rotating component, 615-Slide column, 620-Lifting component, 6 21-Left guide post, 622-Right guide post, 623-Sleeve, 624-Spiral guide groove, 630-Fixed frame, 700-Slag flushing mechanism, 710-Pumping assembly, 711-Pumping rod, 712-Pumping cylinder, 713-Air supply pipe, 714-Air inlet pipe, 720-Transfer cylinder, 721-Air inlet hole, 730-Slag flushing assembly, 731-Fixed cylinder, 732-Telescopic cylinder, 733-Connecting cylinder, 734-Arc seat, 735-Nozzle, 736-Rotating baffle, 737-Telescopic spring, 738-Guide spring, 800-Air storage tank. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0038] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0039] like Figures 1 to 12 As shown, an automatic slag flushing device for a slag grabbing bucket, as an embodiment of the present invention, includes a lifting platform 400, which is located at the bottom of a base 100 and cooperates with an installation cavity 130 opened at the bottom of the base 100. A slag grabbing bucket body 200 and a hydraulic system 300 are distributed circumferentially on the outer periphery of the base 100. An upper fixed seat 120 and a lower fixed seat 110 are distributed circumferentially on the outer wall of the base 100. The tail of the hydraulic system 300 is mounted on the upper fixed seat 120, and the output end of the hydraulic system 300 is connected to a front ear seat 210 provided on the slag grabbing bucket body 200. The slag grabbing bucket body 200 is mounted on the lower fixed seat 110. A rear ear seat 220 is provided on the side of the slag grabbing bucket body 200 near the base 100. The slag grabbing bucket body 200 preferably adopts an arc-shaped plate structure with inconsistent curvature at the top and bottom. The device also includes:

[0040] A lifting mechanism 600 is installed in the mounting cavity 130, and one end of the lifting mechanism 600 is connected to the top of the lifting platform 400.

[0041] A slag flushing mechanism 700 is installed in the mounting cavity 130. One end of the slag flushing mechanism 700 is fixed to the top of the lifting platform 400, and the other end of the slag flushing mechanism 700 is connected to a gas storage tank 800, which is also fixed in the mounting cavity 130. The gas storage tank 800 stores slag flushing gas for flushing slag.

[0042] Linkage mechanism 500 is installed in the installation cavity 130. One end of the linkage mechanism 500 is connected to the lifting mechanism 600 and the slag flushing mechanism 700 respectively. The other end of the linkage mechanism 500 passes through the lateral groove 140 opened on the side wall of the base 100 and is rotatably connected to the rear ear seat 220 on the slag grab bucket body 200.

[0043] When multiple hydraulic systems 300 drive their respective grab bucket bodies 200 to the retracted state, the multiple grab bucket bodies 200 can grab the iron ore and transfer it to the smelting equipment by retracting. At this time, the lifting platform 400 moves up to a position flush with the bottom of the base 100. The rear ear seat 220 on the grab bucket body 200 can drive the linkage mechanism 500 to move away from the base 100. The linkage mechanism 500 simultaneously drives the lifting mechanism 600 and the slag flushing mechanism 700 to work. The lifting mechanism 600 can drive the lifting platform... The lifting platform 400 moves upward to a position flush with the bottom of the base 100, so that the lifting platform 400 can seal the bottom of the installation cavity 130, preventing the grabbed iron ore from entering the installation cavity 130 and preventing the slag flushing mechanism 700 from interfering with the iron ore. The slag flushing mechanism 700 can unidirectionally extract the slag flushing gas stored in the gas storage tank 800 during the upward movement of the lifting platform 400, so that a certain amount of slag flushing gas can be temporarily stored inside the slag flushing mechanism 700, so that it can subsequently spray the slag flushing gas to the inside of the slag grab bucket body 200.

[0044] When the grab bucket body 200 releases the grabbed iron ore, it can drive the rear ear seat 220 to rotate towards the base 100. The rear ear seat 220 can drive the linkage mechanism 500 to move towards the base 100. At this time, the linkage mechanism 500 drives the lifting mechanism 600 and the slag flushing mechanism 700 to work in opposite directions simultaneously. This allows the lifting mechanism 600 to drive the lifting platform 400 to move downwards, so that the lifting platform 400 can drive one end of the slag flushing mechanism 700 to move downwards to the top area of ​​the grab bucket body 200, flushing... The slag-flushing mechanism 700 can transport the slag-flushing gas temporarily stored inside to one end of its lifting platform 400, and the other end can quickly spray the slag-flushing gas onto the inner wall of the top area of ​​the slag-grabbing bucket body 200. The slag-grabbing bucket body 200 can guide the airflow sprayed onto its top area towards its bottom area, thereby cleaning the slag retained on the inner wall of the slag-grabbing bucket body 200, completing the automatic slag flushing of the slag-grabbing bucket, avoiding residual slag from mixing into the ore subsequently grabbed, thus affecting the stability of the composition of the smelting products and improving the smelting quality of the smelting products;

[0045] By simply opening and closing the slag grabbing bucket body 200, the linkage mechanism 500, the lifting mechanism 600, and the slag flushing mechanism 700 can be linked together to achieve a seamless connection of "grabbing-blocking-gas storage" or "releasing-lowering-slag flushing" actions. The mechanical linkage replaces the coordinated control of multiple sets of sensors and electrical control units, reducing the failure rate of electrical components, lowering equipment maintenance costs, and improving operational reliability under harsh working conditions. It is suitable for the continuous operation requirements of slag grabbing and transfer in smelting scenarios, and improves the overall equipment operating efficiency. Moreover, by using the slag flushing gas injection method, the drawbacks of liquid slag flushing can be avoided. For example, liquid may evaporate, scale, or react with slag in a high-temperature environment, causing secondary blockage. Liquid may also leave moisture after slag flushing, leading to slag agglomeration or equipment corrosion.

[0046] In a preferred embodiment, the curvature direction of the slag grabbing bucket body 200 is towards the base 100, and the top area of ​​the slag grabbing bucket body 200 adopts an arc with a large radius of curvature. This makes the arc in this area gentler, ensuring that the slag flushing gas can obtain a relatively stable initial flow direction after being injected onto its top inner wall. Meanwhile, the radius of curvature of the lower area gradually decreases, making the arc gradually steeper. At this time, when the airflow flows along the arc-shaped inner wall of the slag grabbing bucket body 200, it generates a downward component velocity guided by the change in curvature. At the same time, by utilizing the kinetic energy of the gas and the pressure difference of the arc surface, the airflow can cover the bottom corner of the slag grabbing bucket, realizing full-area slag flushing from top to bottom.

[0047] The gas storage tank 800 is equipped with a gas pressure regulating valve, which can stabilize the internal pressure.

[0048] like Figures 3 to 5As shown, in a preferred embodiment of the present invention, the linkage mechanism 500 includes a linkage rod 510, a traction rod 520, and a connecting rod 530. One end of the linkage rod 510 is rotatably connected to the rear ear seat 220, and the other end of the linkage rod 510 passes through the lateral groove 140 and is rotatably connected to the traction rod 520 disposed inside the mounting cavity 130. Connecting rods 530 are installed at both ends of the traction rod 520, and the two connecting rods 530 are respectively connected to the lifting mechanism 600 and the slag flushing mechanism 700.

[0049] When multiple hydraulic systems 300 drive their respective slag grabbing bucket bodies 200 to be in the retracted state, the lifting platform 400 moves up to a position flush with the bottom of the base 100. The rear ear seat 220 on the slag grabbing bucket body 200 can drive the linkage rod 510 to move outward in the direction of the side groove 140. The linkage rod 510 drives the traction rod 520 to move. The traction rod 520 drives the lifting mechanism 600 and the slag flushing mechanism 700 to work simultaneously through two connecting rods 530. This allows the lifting mechanism 600 to move the lifting platform 400 up to a position flush with the bottom of the base 100. The slag flushing mechanism 700 can unidirectionally extract the slag flushing gas stored in the gas storage tank 800 during the upward movement of the lifting platform 400, thereby completing the temporary storage of the slag flushing gas by the slag flushing mechanism 700.

[0050] When the main body 200 of the slag grabbing bucket releases the grabbed iron ore, it can drive the rear ear seat 220 to rotate towards the base 100. The rear ear seat 220 can drive the linkage rod 510 to move towards the interior of the mounting cavity 130. The linkage rod 510 drives the traction rod 520 to move in the opposite direction. The traction rod 520 drives the lifting mechanism 600 and the slag flushing mechanism 700 to work in opposite directions through two connecting rods 530. This allows the lifting mechanism 600 to drive the lifting platform 400 to move down. The lifting platform 400 can drive one end of the slag flushing mechanism 700 to move down to the top area of ​​the main body 200 of the slag grabbing bucket. The slag flushing mechanism 700 can quickly spray slag flushing gas onto the inner wall of the top area of ​​the main body 200 of the slag grabbing bucket, thereby completing the automatic slag flushing of the slag grabbing bucket.

[0051] In a preferred embodiment, both the linkage rod 510 and the connecting rod 530 are preferably straight rod-shaped structures, and the traction rod 520 is preferably Y-shaped rod-shaped structure.

[0052] like Figures 3 to 9As shown, in a preferred embodiment of the present invention, the lifting mechanism 600 includes a control component 610, a lifting component 620, and a fixing frame 630. The fixing frame 630 is fixed to the inner wall of the mounting cavity 130. One end of the lifting component 620 is vertically slidably connected to the fixing frame 630, and the other end of the lifting component 620 is vertically fixedly connected to the top of the lifting platform 400. One end of the control component 610 is horizontally slidably mounted on the fixing frame 630 and connected to one end of the traction rod 520 through a connecting rod 530. The other end of the control component 610 is rotatably mounted on the fixing frame 630 and slidably connected to the lifting component 620.

[0053] The lifting assembly 620 includes a left guide post 621, a right guide post 622, and a spiral guide groove 624. The left guide post 621 and the right guide post 622 are parallel to each other and are both vertically fixed to the top of the lifting platform 400. One end of the left guide post 621 and the right guide post 622 are vertically slidably connected to the fixing frame 630. The outer wall of the left guide post 621 is provided with a spiral guide groove 624 that is slidably connected to the control assembly 610.

[0054] When the rear ear seat 220 on the main body 200 of the slag grabber can drive the linkage rod 510 to move outward in the direction of the lateral channel 140, the linkage rod 510 drives the traction rod 520 to move. The traction rod 520 drives the lifting mechanism 600 and the slag flushing mechanism 700 to work simultaneously through two connecting rods 530. One of the connecting rods 530 can drive one end of the control component 610 to slide horizontally, so that the other end of the control component 610 rotates on the fixed frame 630. The other end of the control component 610 can rotate and slide in cooperation with the spiral guide channel 624. The left guide column 621 is driven to slide on the fixed frame 630, so that the left guide column 621 and the right guide column 622 cooperate with each other and drive the lifting platform 400 to move up to a position flush with the bottom of the base 100. The lifting platform 400 can not only move one end of the slag flushing mechanism 700 into the installation cavity 130 by moving up, so as to avoid interference between the iron ore and the slag flushing mechanism 700 when grabbing, but also seal the bottom of the installation cavity 130 to prevent the iron ore from entering the installation cavity 130 and damaging its internal components, thus extending the service life of the device.

[0055] When the grab bucket body 200 releases the grabbed iron ore, it can drive the rear ear seat 220 to rotate towards the base 100. The rear ear seat 220 can drive the linkage rod 510 to move towards the interior of the mounting cavity 130. The linkage rod 510 drives the traction rod 520 to move in the opposite direction. The traction rod 520 drives the lifting mechanism 600 and the slag flushing mechanism 700 to work in opposite directions simultaneously through two connecting rods 530. One of the connecting rods 530 can drive one end of the control component 610 to slide horizontally in the opposite direction, so that... The other end of the control component 610 rotates in the opposite direction on the fixed frame 630, thereby driving the left guide column 621 to slide in the opposite direction on the fixed frame 630. This causes the left guide column 621 and the right guide column 622 to cooperate with each other and drive the lifting platform 400 to move down. By moving down, the lifting platform 400 can drive one end of the slag flushing mechanism 700 to move down to the top area of ​​the slag grabbing bucket body 200, so that the slag flushing mechanism 700 can quickly spray the slag flushing gas onto the inner wall of the top area of ​​the slag grabbing bucket body 200, thereby completing the automatic slag flushing of the slag grabbing bucket.

[0056] like Figures 3 to 9 As shown, in a preferred embodiment of the present invention, the control component 610 includes a rack 611, a slide 612, a gear 613, a rotating component 614, and a sliding column 615. The slide 612 is horizontally fixed to one side of the fixed frame 630. The rack 611 is horizontally slidably mounted on the slide 612. One end of the rack 611 is connected to a connecting rod 530. The rotating component 614 is rotatably mounted on the fixed frame 630 via a bearing and is located outside the left guide column 621. The rotating component 614 is concentric with the left guide column 621. A sliding column 615 that is slidably connected to the spiral guide groove 624 is vertically fixed on the inner wall of the rotating component 614. A gear 613 that meshes with the rack 611 is fixed on the outer wall of the rotating component 614.

[0057] When the connecting rod 530 drives the rack 611 to move outward from the base 100, the rack 611 drives the gear 613 to rotate, and the gear 613 drives the rotating component 614 to rotate on the fixed frame 630. The rotating component 614 can drive the left guide column 621 to slide on the fixed frame 630 through the sliding engagement of the sliding column 615 and the spiral guide groove 624. This allows the left guide column 621 and the right guide column 622 to cooperate with each other and drive the lifting platform 400 to move up to a position flush with the bottom of the base 100. By moving up, the lifting platform 400 can not only drive one end of the slag flushing mechanism 700 to move into the installation cavity 130, avoiding interference between the iron ore and the slag flushing mechanism 700 when grabbing, but also seal the bottom of the installation cavity 130, preventing the iron ore from entering the installation cavity 130 and damaging its internal components, thus extending the service life of the device.

[0058] When the connecting rod 530 drives the rack 611 to move inward toward the installation cavity 130, the rack 611 drives the gear 613 to rotate in the opposite direction, the gear 613 drives the rotating component 614 to rotate in the opposite direction, and the rotating component 614 drives the sliding column 615 to rotate in the opposite direction. The sliding column 615, through its reverse rotation and its cooperation with the spiral guide groove 624, can drive the left guide column 621 to slide in the opposite direction on the fixed frame 630, so that the left guide column 621 and the right guide column 622 cooperate with each other and drive the lifting platform 400 to move downward. By moving downward, the lifting platform 400 can drive one end of the slag flushing mechanism 700 to move down to the top area of ​​the slag grabbing bucket body 200, so that the slag flushing mechanism 700 can quickly spray the slag flushing gas onto the inner wall of the top area of ​​the slag grabbing bucket body 200, thereby completing the automatic slag flushing of the slag grabbing bucket.

[0059] In a preferred embodiment, the rotating member 614 preferably adopts a conical rotating body structure, the sliding column 615 is fixed to the inner wall of the end with a smaller taper on the rotating member 614, the bearing is installed on the inner wall of the end with a larger taper on the rotating member 614, and the gear 613 is installed on the outer wall of the end with a larger taper on the rotating member 614.

[0060] like Figures 3 to 10 As shown, in a preferred embodiment of the present invention, the bottom of both the left guide post 621 and the right guide post 622 are vertically fixed with sleeves 623. The sleeves 623 are used for one end of the slag flushing mechanism 700 to pass through, so that it can effectively and quickly complete the slag flushing operation on the slag grabbing bucket body 200.

[0061] like Figures 3 to 12 As shown, in a preferred embodiment of the present invention, the slag flushing mechanism 700 includes a pumping component 710, a transfer cylinder 720, and a slag flushing component 730. The pumping component 710 is installed in the mounting cavity 130. One end of the pumping component 710 is connected to another connecting rod 530, and the other end of the pumping component 710 is connected to the transfer cylinder 720 and the air storage tank 800 respectively. The transfer cylinder 720 is fixed on the top of the lifting platform 400. The transfer cylinder 720 is circumferentially distributed with slag flushing components 730, and the transfer cylinder 720 is circumferentially provided with air inlet holes 721 that cooperate with the slag flushing components 730. The two slag flushing components 730 respectively penetrate the sleeves 623 on the left guide post 621 and the right guide post 622.

[0062] The pumping assembly 710 includes a pumping rod 711, a pumping cylinder 712, a piston, an air supply pipe 713, and an air inlet pipe 714. The pumping cylinder 712 is fixed inside the mounting cavity 130. One end of the pumping cylinder 712 is respectively equipped with the air supply pipe 713 and the air inlet pipe 714. The air supply pipe 713 is connected to the interior of the transfer cylinder 720, and the air inlet pipe 714 is connected to the air storage tank 800. Both the air supply pipe 713 and the air inlet pipe 714 are equipped with one-way valves. A piston is slidably installed inside the pumping cylinder 712. The pumping rod 711 is vertically fixed to one side of the piston. One end of the pumping rod 711 extends outside the pumping cylinder 712 and is connected to another connecting rod 530.

[0063] When the rear ear seat 220 on the main body 200 of the slag grabber can drive the linkage rod 510 to move outward in the direction of the side groove 140, the linkage rod 510 drives the traction rod 520 to move, and the traction rod 520 drives the two connecting rods 530 to move simultaneously. One of the connecting rods 530 can drive the lifting mechanism 600 to work, and the other connecting rod 530 drives the extraction rod 711 to move outward in the direction of the base 100. At this time, the one-way valve on the air supply pipe 713 is in the closed state, and the one-way valve on the air inlet pipe 714 is in the open state. The extraction rod 711 can extract the slag flushing gas in the air storage tank 800 into the extraction cylinder 712 by driving the piston to slide in the extraction cylinder 712, so that the extraction cylinder 712 can temporarily store the slag flushing gas. At the same time, the lifting platform 400 can drive the transfer cylinder 720 and the slag flushing assembly 730 to move upward into the installation cavity 130 to avoid movement interference with the iron ore when grabbing, and extend the service life.

[0064] When the grab bucket body 200 releases the grabbed iron ore, it can drive the rear ear seat 220 to rotate towards the base 100. The rear ear seat 220 can drive the linkage rod 510 to move towards the interior of the mounting cavity 130. The linkage rod 510 drives the traction rod 520 to move in the opposite direction. The traction rod 520 drives the two connecting rods 530 to move in the opposite direction. One of the connecting rods 530 drives the lifting mechanism 600 to work in the opposite direction, so that the lifting mechanism 600 can move the lifting platform 400 down to the bottom of the base 100 and allow the slag flushing assembly 730 to move down to the top of the grab bucket body 200. The two sections are at the same height; another connecting rod 530 drives the extraction rod 711 to move in the opposite direction. At this time, the one-way valve on the air supply pipe 713 is in the open state, and the one-way valve on the air inlet pipe 714 is in the closed state. The extraction rod 711 can guide the slag flushing gas temporarily stored inside the extraction cylinder 712 to the transfer cylinder 720 by driving the piston to slide in the opposite direction. The transfer cylinder 720 can then guide the slag flushing gas to the slag flushing assembly 730, which in turn can quickly spray the slag flushing gas onto the inner wall of the top area of ​​the slag grab bucket body 200, thereby completing the automatic slag flushing of the slag grab bucket.

[0065] In a preferred embodiment, the transfer cylinder 720 preferably adopts a circular cylindrical structure;

[0066] A pneumatic booster valve can also be installed on the air inlet pipe 714. It does not require an external power supply and uses the low-pressure gas in the air storage tank to drive the booster, so that the airflow ejected from the nozzle 735 has a certain pressure to meet the slag flushing requirements.

[0067] like Figures 3 to 12 As shown, in a preferred embodiment of the present invention, the slag flushing assembly 730 includes a fixed cylinder 731, a telescopic cylinder 732, a connecting cylinder 733, an arc-shaped seat 734, a nozzle 735, a rotating baffle 736, a telescopic spring 737, and a flow guiding spring 738. The fixed cylinder 731 is perpendicular to the transfer cylinder 720 and circumferentially distributed on the outer wall of the transfer cylinder 720. The telescopic cylinder 732 is horizontally slidably mounted on the fixed cylinder 731. The connecting cylinder 733 is slidably mounted inside the telescopic cylinder 732. The connecting cylinder 733 is connected to the transfer cylinder 720 through an air inlet 721. The connecting cylinder 733 is connected to an arc-shaped seat 734 fixed on one side. Spray nozzles 735 are distributed circumferentially on the outer side of the arc-shaped seat 734. The spray nozzles 735 are connected to the arc-shaped seat 734 and the connecting cylinder 733 respectively. The outer wall of the connecting cylinder 733 is connected to the outer wall of the transfer cylinder 720 through a telescopic spring 737. A rotating baffle 736 is rotatably installed inside the connecting cylinder 733. One side of the rotating baffle 736 is connected to the inner wall of the arc-shaped seat 734 through a flow guide spring 738. The elastic force of the flow guide spring 738 is less than the elastic force of the telescopic spring 737.

[0068] When the flushing gas enters the connecting cylinder 733 through the transfer cylinder 720, the airflow first pushes the rotating baffle 736 to rotate, and the guide spring 738 is compressed, allowing the airflow to smoothly enter the arc-shaped seat 734, and finally be sprayed by the nozzle 735 onto the top area of ​​the slag grab bucket body 200; when the arc-shaped seat 734, the connecting cylinder 733, and the transfer cylinder 720 are filled with gas and the gas injection volume is less than the inflow volume, the gas pressure can push the connecting cylinder 733 to move away from the transfer cylinder 720. The connecting cylinder 733 drives the telescopic cylinder 732 to slide and extend within the fixed cylinder 731, and the telescopic spring 737... In the stretched state, the connecting cylinder 733 simultaneously drives the arc-shaped seat 734 and the nozzle 735 to move closer to the main body 200 of the slag grabbing bucket, thereby reducing the distance between the nozzle 735 and the main body 200 of the slag grabbing bucket. This allows the airflow ejected from the nozzle 735 to directly impact the residual slag on the inner wall of the slag grabbing bucket with a higher effective flow rate and pressure. There is no need to increase the pressure of the gas storage tank 800 or increase the gas flow rate to compensate for the loss of kinetic energy over a long distance. This can directly overcome the adhesion between the slag and the inner wall, ensuring that the residual slag is completely blown off. It can also improve the directionality of the airflow, allowing it to be accurately sprayed in the top area of ​​the main body 200 of the slag grabbing bucket.

[0069] When the slag-flushing gas stops entering the transfer cylinder 720, the airflow pressure in the connecting cylinder 733 disappears. The telescopic spring 737 releases its elastic potential energy first and pulls the connecting cylinder 733 and the telescopic cylinder 732 back to their initial positions, preventing them from interfering with the movement of the base 100 or the iron ore during the ascent of the lifting platform 400. At the same time, the guide spring 738 also releases its own elastic potential energy and drives the rotating baffle 736 to reset and close, restoring the seal on the connecting cylinder 733 and preventing external dust and slag from entering the connecting cylinder 733 or the transfer cylinder 720, thus extending its service life.

[0070] In a preferred embodiment, the arc-shaped seat 734 preferably adopts an arc-shaped block structure with a square frame cross-section, and the arc of the arc-shaped seat 734 is consistent with the radial arc of the top area of ​​the slag grabbing bucket body 200.

[0071] The design of the flow guide spring 738 is only to drive the rotating baffle 736 to rotate under normal conditions, thereby completing the closure of the connecting cylinder 733. Therefore, its elastic force is only sufficient to drive the rotating baffle 736 to rotate under normal conditions, and it can only rotate in the direction closer to the arc-shaped seat 734.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic slag flushing device for a slag grabbing bucket, comprising a lifting platform located at the bottom of a base and cooperating with an installation cavity opened at the bottom of the base; a slag grabbing bucket body and a hydraulic system distributed circumferentially on the outer periphery of the base; an upper fixed seat and a lower fixed seat distributed circumferentially on the outer wall of the base; the tail end of the hydraulic system is mounted on the upper fixed seat; the output end of the hydraulic system is connected to a front ear seat provided on the slag grabbing bucket body; the slag grabbing bucket body is mounted on the lower fixed seat; a rear ear seat is provided on the side of the slag grabbing bucket body near the base; the slag grabbing bucket body adopts an arc-shaped plate structure with inconsistent curvature at the top and bottom, characterized in that... Also includes: A lifting mechanism is installed in the mounting cavity, and one end of the lifting mechanism is connected to the top of the lifting platform; The slag flushing mechanism is installed in the installation cavity. One end of the slag flushing mechanism is fixed to the top of the lifting platform, and the other end of the slag flushing mechanism is connected to a gas storage tank that is also fixed in the installation cavity. The gas storage tank stores slag flushing gas for flushing slag. The linkage mechanism is installed in the installation cavity. One end of the linkage mechanism is connected to the lifting mechanism and the slag flushing mechanism respectively, and the other end of the linkage mechanism passes through the lateral groove opened on the side wall of the base and is rotatably connected to the rear ear seat on the slag grab bucket body.

2. The automatic slag flushing device for the slag grabbing bucket according to claim 1, characterized in that, The main body of the slag grabbing bucket is curved towards the base, and the top area of ​​the slag grabbing bucket adopts an arc with a large radius of curvature, while the radius of curvature of the lower area gradually decreases.

3. The automatic slag flushing device for the slag grabbing bucket according to claim 1, characterized in that, The linkage mechanism includes a linkage rod, a traction rod, and a connecting rod. One end of the linkage rod is rotatably connected to the rear ear seat, and the other end of the linkage rod passes through the lateral groove and is rotatably connected to the traction rod located inside the mounting cavity. Connecting rods are installed at both ends of the traction rod, and the two connecting rods are respectively connected to the lifting mechanism and the slag flushing mechanism.

4. The automatic slag flushing device for the slag grabbing bucket according to claim 3, characterized in that, The lifting mechanism includes a control component, a lifting component, and a fixed frame. The fixed frame is fixed to the inner wall of the mounting cavity. One end of the lifting component is vertically slidably connected to the fixed frame, and the other end of the lifting component is vertically fixedly connected to the top of the lifting platform. One end of the control component is horizontally slidably mounted on the fixed frame and connected to a connecting rod, and the other end of the control component is rotatably mounted on the fixed frame and slidably connected to the lifting component.

5. The automatic slag flushing device for the slag grabbing bucket according to claim 4, characterized in that, The lifting assembly includes a left guide column, a right guide column, and a spiral guide groove. The left and right guide columns are parallel to each other and are both vertically fixed to the top of the lifting platform. One end of each of the left and right guide columns is vertically slidably connected to the fixing frame. A spiral guide groove that is slidably connected to the control assembly is provided on the outer wall of the left guide column.

6. The automatic slag flushing device for the slag grabbing bucket according to claim 5, characterized in that, The control assembly includes a rack, a slide, a gear, a rotating component, and a sliding column. The slide is horizontally fixed to one side of the fixed frame. A rack is horizontally slidably mounted on the slide. One end of the rack is connected to a connecting rod. The rotating component is rotatably mounted on the fixed frame via a bearing and is located outside the left guide column. The rotating component is concentric with the left guide column. A sliding column that is slidably connected to a spiral guide groove is vertically fixed on the inner wall of the rotating component. A gear that meshes with the rack is fixed on the outer wall of the rotating component.

7. The automatic slag flushing device for the slag grabbing bucket according to claim 5, characterized in that, Both the left and right guide pillars have sleeves vertically fixed to their bottoms, and the sleeves are used for one end of the slag flushing mechanism to pass through.

8. The automatic slag flushing device for the slag grabbing bucket according to claim 7, characterized in that, The slag flushing mechanism includes a pumping component, a transfer cylinder, and a slag flushing assembly. The pumping component is installed in the installation cavity. One end of the pumping component is connected to another connecting rod, and the other end of the pumping component is connected to the transfer cylinder and the air storage tank respectively. The transfer cylinder is fixed on the top of the lifting platform. Slag flushing assemblies are distributed around the transfer cylinder, and the transfer cylinder has air inlets around its circumference that cooperate with the slag flushing assemblies. Two slag flushing assemblies pass through the sleeves on the left guide column and the right guide column respectively.

9. The automatic slag flushing device for the slag grabbing bucket according to claim 8, characterized in that, The pumping assembly includes a pumping rod, a pumping cylinder, a piston, an air supply pipe, and an air inlet pipe. The pumping cylinder is fixed in the mounting cavity. An air supply pipe and an air inlet pipe are respectively installed at one end of the pumping cylinder. The air supply pipe is connected to the interior of the transfer cylinder, and the air inlet pipe is connected to the air storage tank. Both the air supply pipe and the air inlet pipe are equipped with one-way valves. A piston is slidably installed inside the pumping cylinder. A pumping rod is vertically fixed to one side of the piston. One end of the pumping rod extends outside the pumping cylinder and is connected to another connecting rod.

10. The automatic slag flushing device for the slag grabbing bucket according to claim 8, characterized in that, The slag flushing assembly includes a fixed cylinder, a telescopic cylinder, a connecting cylinder, an arc-shaped seat, nozzles, a rotating baffle, a telescopic spring, and a flow guiding spring. The fixed cylinder is perpendicular to the intermediate transfer cylinder and is circumferentially distributed on the outer wall of the intermediate transfer cylinder. The telescopic cylinder is horizontally slidably mounted on the fixed cylinder. The connecting cylinder is slidably mounted inside the telescopic cylinder. The connecting cylinder is connected to the intermediate transfer cylinder through an air inlet. An arc-shaped seat is fixed on one side of the connecting cylinder. Nozzles are circumferentially distributed on the outer side of the arc-shaped seat. The nozzles are connected to the arc-shaped seat and the connecting cylinder respectively. The outer wall of the connecting cylinder is connected to the outer wall of the intermediate transfer cylinder through a telescopic spring. A rotating baffle is rotatably mounted inside the connecting cylinder. One side of the rotating baffle is connected to the inner wall of the arc-shaped seat through a flow guiding spring. The elastic force of the flow guiding spring is less than that of the telescopic spring.

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