Emergency plugging device for slag and iron notch of electric furnace

Abstract

The utility model provides an emergency plugging device for an electric furnace slag and iron notch. Comprising a mud beating barrel body, a spiral mud pushing rod, a pneumatic motor, a coupler, a pushing air cylinder and a transmission assembly. A mud containing cavity is formed in the mud beating cylinder body, the front end of the spiral mud pushing rod extends into the mud beating cylinder body, the rear end of the spiral mud pushing rod is connected with an output shaft of the coupler, an input shaft of the coupler is connected with the pneumatic motor through the transmission assembly, the coupler of the transmission assembly is supported in the transmission seat, and the driven gear is fixedly installed on the coupler. The driving shaft is connected with an output shaft of the pneumatic motor, the sliding gear is arranged on the driving shaft in a sleeving mode and reciprocates in the axial direction of the driving shaft, the sliding gear is matched with the driving shaft through a sliding key, and the toothed belt is arranged on the sliding gear and the driven gear in a sleeving mode. A pushing cylinder body is fixedly connected to the rear side of the transmission assembly, and a piston rod of the pushing cylinder is fixedly connected with a transmission seat of the transmission assembly. The device achieves rapid emergency plugging, avoids accidents, and has remarkable practical application value.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to an electric furnace slag iron mouth emergency plugging device. Background Art

[0002] Electric furnaces are mainly used for reducing smelting ore, carbonaceous reducing agents and solvents or scrap steel and other raw materials. They mainly produce alloy steel, ferroalloys, titanium slag, etc., and are important smelting equipment in the metallurgical industry. Electric furnaces have slag and iron outlets. Correspondingly, each slag iron outlet needs to be equipped with a set of opening and blocking equipment, such as an opening machine and a mud gun machine. After the electric furnace is powered on for production, the slag iron needs to be discharged once regularly according to the iron-out system. When the slag iron standard is reached, the opening machine is used to open the iron outlet, and the high-temperature slag iron flows out, the molten iron enters the iron ladle, and the high-temperature slag enters the water slag pool through high-pressure water for water quenching and granulation, or the slag enters the slag basin; when the slag iron is finished, the mud gun machine is used to block the corresponding slag iron outlet. During the slag iron process, if the blocking equipment fails, such as the mud gun machine fails or cannot be used due to power outage, the mud sleeve is damaged, causing mud to leak out of the plugging port, and the iron outlet cannot be blocked, if the slag iron outlet cannot be blocked normally in a short time, a large amount of high-temperature slag iron will overflow and burn the equipment, and the high-temperature slag iron will explode when it meets water.

[0003] Application number: CN202221401704.6 "An emergency plugging device for the taphole opening machine in front of a blast furnace" mentions a taphole opening machine beam with a taphole opening machine propulsion mechanism connected to the bottom. The front section is a plugging cap and the back section is a push block and a push rod, and the cannon mud is pushed out by the push block. However, the patent does not consider the situation where the mud sleeve is damaged and has gaps or is not tightly stuck. At the same time, the taphole opening machine device and the traditional mud cannon machine are both electrical hydraulic systems, and there are the same potential safety hazards, that is, it does not consider the situation where the hydraulic system is damaged due to power outages and hydraulic oil pipe bursts, and does not fundamentally solve the potential safety hazards. Utility Model Content

[0004] The purpose of the utility model is to provide an electric furnace slag iron mouth emergency plugging device to solve the problems raised in the above background technology:

[0005] (1) How to solve the existing problems of hydraulic oil pipe bursting, power outage and inability to use mud guns, and gaps in the iron mouth mud sleeve resulting in poor sealing, so as to avoid accidents caused by high-temperature slag and iron leakage due to failure to plug the holes in time.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An electric furnace slag iron mouth emergency plugging device;

[0008] It includes a mud-beating barrel, a spiral mud-pushing rod, a pneumatic motor, a coupling, a pushing cylinder and a transmission assembly;

[0009] The mud-making cylinder body is provided with a mud-loading chamber, the front end of the spiral mud-pushing rod extends into the mud-making cylinder body, the rear end of the spiral mud-pushing rod is connected to the output shaft of the coupling, the input shaft of the coupling is connected to the pneumatic motor through a transmission assembly, the transmission assembly includes a transmission seat, a drive shaft, a sliding gear, a driven gear and a toothed belt, the coupling is supported in the transmission seat, the rotation axis of the coupling is consistent with the rotation axis of the spiral mud-pushing rod, the driven gear is fixedly mounted on the coupling, the drive shaft is connected to the output shaft of the pneumatic motor, the sliding gear is sleeved on the drive shaft and the sliding gear reciprocates along the axial direction of the drive shaft, the sliding gear and the drive shaft are matched by a sliding key, and the toothed belt is sleeved on the sliding gear and the driven gear;

[0010] The cylinder body of the pushing cylinder is fixedly connected to the rear side of the transmission assembly, the piston rod of the pushing cylinder is fixedly connected to the transmission seat of the transmission assembly, and the telescopic direction of the piston rod of the pushing cylinder is consistent with the axial direction of the spiral mud pushing rod.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] Furthermore, it also includes a fixed frame, a cylinder body of the push cylinder is fixedly connected to the rear of the fixed frame, and the pneumatic motor is fixedly connected to the side wall of the fixed frame;

[0013] A first slide rail assembly is provided in the fixed frame, and the first slide rail assembly includes a linear slide rail and two first sliders. The linear slide rail is fixedly connected to the fixed frame, and the two first sliders are respectively fixedly connected to the transmission seat of the transmission assembly. The first slider cooperates with the linear slide rail, and the linear slide rail moves forward and backward.

[0014] Furthermore, two sets of second slide rail assemblies are provided on the fixed frame, and the second slide rail assemblies include guide rails and second sliders. The guide rails are fixedly supported on the upper part of the fixed frame, and the second sliders are fixedly connected to the transmission seat of the transmission assembly, and the second sliders cooperate with the slide rails.

[0015] Furthermore, the fixed frame is an integral cast steel frame structure.

[0016] Furthermore, the transmission assembly also includes a support plate, one end of the support plate is fixedly connected to the transmission seat, one end of the support plate extends to one side of the drive shaft, and the sliding gear is supported on the support plate.

[0017] Furthermore, a through hole communicating with the mud loading chamber is formed on the side wall of the mud beating barrel, and a mud loading cover plate closing the mud loading chamber is hingedly connected to the through hole.

[0018] Furthermore, a detachably connected plugging nozzle is provided at the front end of the mud beating barrel.

[0019] Furthermore, spiral blades are provided on the side walls of the mud pushing rod.

[0020] Furthermore, the mud pushing rod is a bare-rod mud pushing rod, and a piston for pushing the cannon mud is provided at the end of the bare-rod mud pushing rod.

[0021] When this structure is adopted, the spiral mud pusher has the function of rotating and pushing under the action of the pneumatic motor and the pushing cylinder. The gun mud is squeezed and pushed under the rotation and pushing of the spiral mud pusher. After opening the mud loading cover of the mud barrel, the gun mud block can be placed in the mud loading chamber. The front end of the mud barrel is the plugging mouth of the traditional mud gun machine. When the mud sleeve is also damaged and a gap appears, the plugging mouth can be assembled with screws, and the plugging mouth can be inserted into the iron mouth channel like a plug to achieve plugging and prevent mud leakage.

[0022] The beneficial technical effects of the electric furnace slag iron mouth emergency plugging device are:

[0023] (1) The power is fully pneumatic, which eliminates the problems of hydraulic system failure and power outage of the mud gun machine, and is safe and reliable.

[0024] (2) When the mud sleeve is damaged and a gap appears, the small plugging mouth can be tightly combined with the inside of the iron mouth channel to prevent the leakage of the taphole mud.

[0025] (3) The structure is simple and easy to operate, and emergency plugging can be achieved quickly.

[0026] The electric furnace slag iron mouth emergency plugging device solves the various factors and combinations that may cause plugging, such as damage to the mud gun machine, power outages, damage to the mud sleeve and gaps, and other combinations of factors that are unfavorable to plugging, and achieves rapid emergency plugging to avoid accidents, which has significant practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a top view of the first embodiment of the electric furnace slag iron mouth emergency plugging device.

[0028] Figure 2 It is a front view of the first embodiment of the electric furnace slag iron mouth emergency plugging device.

[0029] Figure 3 It is one of the three-dimensional views of the first embodiment of the electric furnace slag iron mouth emergency plugging device.

[0030] Figure 4 It is the second stereogram of the first embodiment of the electric furnace slag iron mouth emergency plugging device (the mud-beating barrel body is omitted in the figure).

[0031] Figure 5 It is the third stereogram of the first embodiment of the electric furnace slag iron mouth emergency plugging device (the mud-beating barrel body is omitted in the figure).

[0032] Figure 6 It is a stereoscopic diagram of the second embodiment of the electric furnace slag iron mouth emergency plugging device.

[0033] Description of the numbers in the figure:

[0034] Fixed frame-100; spiral mud pushing rod-300; mud beating barrel-400; mud loading cover plate-410; plugging nozzle-420; pneumatic motor-500; transmission seat-610; driving shaft-620; sliding gear-630; driven gear-640; support plate-650; toothed belt-660; support frame-670; pushing cylinder-700; linear slide rail-810; first slider-820; guide rail-910; second slider-920. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0036] The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementations.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0038] Embodiment 1

[0039] See also Figures 1 to 5 .

[0040] The electric furnace slag iron mouth emergency plugging device comprises a mud beating barrel 400, a fixed frame 100, a spiral mud pushing rod 300, an air motor 500, a coupling, a pushing cylinder 700, a transmission assembly, two sets of first slide rail assemblies and two sets of second slide rail assemblies.

[0041] The fixed frame 100 is an integral cast steel frame structure, the fixed frame 100 is fixed on the outside of the titanium slag electric furnace, the mud making cylinder body 400 is welded on the front side of the fixed frame 100, a mud loading chamber is arranged in the mud making cylinder body 400, a through hole communicating with the mud loading chamber is opened on the side wall of the mud making cylinder body 400, a mud loading cover plate 410 closing the mud loading chamber is hinged at the through hole, a plugging nozzle 420 is arranged at the front end of the mud making cylinder body 400, and the mud making cylinder body 400 and the plugging nozzle 420 are detachably connected by bolts.

[0042] The front end of the spiral mud pusher rod 300 extends into the mud beating barrel 400, and the rear end of the spiral mud pusher rod 300 is connected to the output shaft of the coupling (the coupling is completely in the transmission seat 610, so it is not shown in the figure), and the input shaft of the coupling is connected to the pneumatic motor 500 through a transmission assembly. The transmission assembly includes a transmission seat 610, a drive shaft 620, a sliding gear 630, a driven gear 640, a support plate 650 and a toothed belt 660. The rear end of the coupling is supported in the transmission seat 610 by a bearing, and the rotation axis of the coupling is consistent with the rotation axis of the spiral mud pusher rod 300. The driven gear 640 is fixedly installed on the side wall of the front section of the coupling. The rear end of the drive shaft 620 is connected to the pneumatic motor The output shaft of the pneumatic motor 500 is connected, the pneumatic motor 500 is fixed to the outer wall of the fixed frame 100 by bolts, and a support frame 670 is arranged on the outer side of the pneumatic motor 500 and the drive shaft 620, the front end of the drive shaft 620 is supported on the support frame 670, the drive shaft 620 and the support frame 670 are matched by bearings, the axis of the drive shaft 620 is parallel to the axis of the coupling, the sliding gear 630 is mounted on the drive shaft 620 and the sliding gear 630 reciprocates along the axial direction of the drive shaft 620, the sliding gear 630 and the drive shaft 620 are matched by a sliding key, and the toothed belt 660 is mounted on the sliding gear 630 and the driven gear 640.

[0043] One end of the support plate 650 is fixed to the transmission seat 610 by bolts, and one end of the support plate 650 extends to one side of the drive shaft 620. The drive shaft 620 passes through the support plate 650. The sliding gear 630 is supported on the support plate 650, and the sliding gear 630 and the support plate 650 are matched with bearings.

[0044] The cylinder body of the pushing cylinder 700 is fixed to the rear part of the fixed frame 100 by bolts, the piston rod of the pushing cylinder 700 extends into the fixed frame 100, the piston rod of the pushing cylinder 700 is fixed to the transmission seat 610 of the transmission assembly, and the telescopic direction of the piston rod of the pushing cylinder 700 is consistent with the axial direction of the spiral mud pusher 300.

[0045] The first slide rail assembly includes a linear slide rail 810 and two first sliders 820. The linear slide rail 810 is fixed to the fixed frame 100 by bolts. The two first sliders 820 are respectively fixed to the transmission seat 610 of the transmission assembly by bolts. The first sliders 820 cooperate with the linear slide rail 810, and the direction of the linear slide rail 810 is forward and backward.

[0046] The second slide rail assembly includes a guide rail 910 and a second slider 920. The guide rail 910 is fixedly supported on the upper portion of the fixed frame 100. The second slider 920 and the transmission seat 610 of the transmission assembly are an integrated structure. The second slider 920 cooperates with the slide rail.

[0047] When in use, start the pushing cylinder 700, and the piston rod of the pushing cylinder 700 pushes the transmission seat 610 of the transmission assembly. The pneumatic motor 500 does not move with it, but synchronously drives the mud beating cylinder body 400 and the spiral mud pushing rod 300 to move back and forth along the two groups of first slide rail assemblies. The linear slide rail 810 of the first slide rail assembly has low resistance, ensuring that the directional displacements on both sides of the mud beating cylinder body 400 and the spiral mud pushing rod 300 are consistent during movement.

[0048] During this process, the pneumatic motor 500 does not follow the movement. The pneumatic motor 500 cooperates with the sliding gear 630, the driven gear 640, and the toothed belt 660 to transmit power to the coupling and the spiral mud pusher 300. This not only reduces the pushing load of the pushing cylinder 700, but also facilitates the selection of a small-sized pushing cylinder 700, thereby reducing the curb weight of the electric furnace slag iron mouth emergency plugging device, and avoids rigid contact between the pneumatic motor 500 and other mechanisms, further reducing the impact of the vibration of the pneumatic motor 500 on other components.

[0049] The fixed frame 100 is an integral cast steel frame structure, and the push cylinder 700 and the linear slide rail 810 of the first slide rail assembly are fixed on the fixed frame 100. The integrated fixed frame 100 can have higher strength and avoid vibration interference and resonance of the various components of the fixed frame 100.

[0050] The spiral mud pushing rod 300 has the functions of rotation and propulsion. The cannon mud is squeezed and pushed forward under the rotation and propulsion of the spiral mud pushing rod 300. After opening the mud loading cover 410 of the mud beating barrel 400, the cannon mud block can be placed in the mud loading chamber. The front end of the mud beating barrel 400 is a small plugging mouth 420 of a traditional mud cannon machine.

[0051] When the mud sleeve is damaged and a gap appears, the small plugging nozzle 420 can be assembled with screws, and the small plugging nozzle 420 is inserted into the inside of the iron mouth channel like a plug to achieve sealing and prevent mud leakage.

[0052] The electric furnace slag iron mouth emergency plugging device comprehensively solves the various factors and their combinations that may cause plugging, such as damage to the mud gun machine, power outages, gaps in the mud sleeve damage and other combinations of factors that are unfavorable to plugging, thereby achieving rapid emergency plugging and avoiding accidents.

[0053] Embodiment 2

[0054] See also Figure 6 .

[0055] The difference between this embodiment and the first embodiment is that the structure of the mud pusher rod is a bare-rod mud pusher rod 310 , and a piston 311 for pushing the cannon mud is provided at the end of the bare-rod mud pusher rod 310 .

[0056] The bare-rod mud pusher in this embodiment can also achieve the same technical effect as the spiral mud pusher 300 in the first embodiment.

[0057] The above are only two implementation modes of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the principle of the present invention, and these should also be regarded as belonging to the protection scope of the present invention.

Claims

1. An electric furnace slag iron mouth emergency plugging device, characterized by: It comprises a mud beating barrel (400), a mud pushing rod (300), an air motor (500), a coupling, a pushing cylinder (700) and a transmission assembly; The mud-beating barrel (400) is provided with a mud-loading chamber, the front end of the mud-beating rod (300) extends into the mud-beating barrel (400), the rear end of the mud-beating rod (300) is connected to the output shaft of the coupling, and the input shaft of the coupling is connected to the pneumatic motor (500) through a transmission assembly, the transmission assembly includes a transmission seat (610), a drive shaft (620), a sliding gear (630), a driven gear (640) and a toothed belt (660), the coupling is supported in the transmission seat (610), and the rotation axis of the coupling is connected to the transmission seat (610). The rotation axes of the mud pusher rod (300) are consistent, the driven gear (640) is fixedly installed on the coupling, the driving shaft (620) is connected to the output shaft of the pneumatic motor (500), the sliding gear (630) is sleeved on the driving shaft (620) and the sliding gear (630) reciprocates along the axial direction of the driving shaft (620), the sliding gear (630) and the driving shaft (620) are matched by a sliding key, and the toothed belt (660) is sleeved on the sliding gear (630) and the driven gear (640); The cylinder body of the pushing cylinder (700) is fixedly connected to the rear side of the transmission assembly, the piston rod of the pushing cylinder (700) is fixedly connected to the transmission seat (610) of the transmission assembly, and the telescopic direction of the piston rod of the pushing cylinder (700) is consistent with the axial direction of the mud pushing rod (300).

2. The electric furnace slag iron mouth emergency plugging device according to claim 1 is characterized in that: It also includes a fixed frame (100), a cylinder body of a push cylinder (700) is fixedly connected to the rear of the fixed frame (100), and a pneumatic motor (500) is fixedly connected to a side wall of the fixed frame (100); A first slide rail assembly is provided inside the fixed frame (100), and the first slide rail assembly includes a linear slide rail (810) and two first sliders (820). The linear slide rail (810) is fixedly connected to the fixed frame (100), and the two first sliders (820) are respectively fixedly connected to the transmission seat (610) of the transmission assembly. The first sliders (820) cooperate with the linear slide rail (810), and the linear slide rail (810) moves in a front-to-back direction.

3. The electric furnace slag iron mouth emergency plugging device according to claim 2 is characterized in that: Two sets of second slide rail assemblies are also provided on the fixed frame (100), and the second slide rail assemblies include a guide rail (910) and a second slider (920). The guide rail (910) is fixedly supported on the upper part of the fixed frame (100), and the second slider (920) is fixedly connected to the transmission seat (610) of the transmission assembly, and the second slider (920) cooperates with the slide rail.

4. The electric furnace slag iron mouth emergency plugging device according to claim 1 is characterized in that: The fixed frame (100) is an integrally cast steel frame structure.

5. The electric furnace slag iron mouth emergency plugging device according to claim 1 is characterized in that: The transmission assembly further comprises a support plate (650), one end of the support plate (650) is fixedly connected to the transmission seat (610), one end of the support plate (650) extends toward one side of the drive shaft (620), and the sliding gear (630) is supported on the support plate (650).

6. The electric furnace slag iron mouth emergency plugging device according to claim 1 is characterized in that: The side wall of the mud-beating barrel (400) is provided with a through hole communicating with the mud-loading chamber, and a mud-loading cover plate (410) for closing the mud-loading chamber is hingedly connected to the through hole.

7. The electric furnace slag iron mouth emergency plugging device according to claim 1 is characterized in that: The front end of the mud-beating barrel (400) is provided with a detachably connected plugging nozzle (420).

8. The electric furnace slag iron mouth emergency plugging device according to claim 1 is characterized by: The side wall of the mud pusher rod (300) is provided with spiral blades.

9. The electric furnace slag iron mouth emergency plugging device according to claim 1 is characterized in that: The mud pushing rod (300) is a bare-rod mud pushing rod (310), and a piston (311) for pushing cannon mud is provided at the end of the bare-rod mud pushing rod (310).

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