CN113218199B - Bottom blowing smelting furnace charge door bonding object cleaning device - Google Patents

Abstract

The application discloses a cleaning device for adhesive at a charging port of a bottom-blowing smelting furnace, and relates to the field of metallurgy; the cleaning device is provided with a composite motion device and a cleaning rod, wherein the composite motion device carries the cleaning rod to move up and down and drives the cleaning rod to rotate around the axis of the cleaning rod; the cleaning knife arranged at the bottom of the cleaning rod enters a cylindrical charging hole of the bottom blowing furnace and moves upwards to lift the cleaning rod out of the charging hole; the composite motion device drives the cleaning rod to rotate around the axis of the cleaning rod and reciprocate up and down, so that the motion track of the cleaning knife in the charging hole is a right circular cylinder, and the adhesive on the inner wall of the charging hole is cleaned; the device can replace traditional manual clearance, reduces work load, improves cleaning efficiency, and automatic descaling machine of charge door can clear up 360 to the charge door in addition, does not have the dead angle ground.

Description

Bottom blowing smelting furnace charge door bonding object cleaning device

Technical Field

The application relates to the field of metallurgy, in particular to a device for cleaning adhesive at a charging hole of a bottom blowing smelting furnace.

Background

The copper smelting industry in China introduces smelting technologies such as flash smelting, oxygen-enriched top-blown smelting, norlanda smelting and the like from abroad. In recent decades, domestic metallurgical workers have independently developed bottom-blown smelting and converting techniques, side-blown smelting and multi-lance top-blown techniques, which are rapidly applied and matured. At present, many old copper smelting plants are improved and newly built copper smelting plants mostly adopt oxygen-enriched bottom blowing smelting and double-side blowing smelting technologies according to the characteristic of relatively complex sources of raw materials. The copper smelting technologies are operated by a plurality of smelting enterprises in China, so that the China becomes the world maximum copper production country, and the China copper smelting technologies are advanced in the world.

The oxygen-enriched bottom blowing copper smelting technology is also called a water gap mountain copper smelting method (SKS method), is expanded based on the water gap mountain lead smelting method, and is another new technology for strengthening molten pool smelting which is independently developed in China after the silver copper smelting method; the technology is firstly applied to the annual production 1 ten thousand tons of cathode copper project of a great dragon smelting plant in the south of the Yuan in 2006, and then is successfully applied to two smelting plants in the Shandong province and Hengbang in succession. A qualitative and quantitative leap is achieved over a period of more than ten years. Up to now, 15 copper smelting enterprises in China adopt the technology for production. The oxygen bottom blowing lead smelting technology is continuously perfected and improved since the first production line in 2002, and has remarkable results in the aspects of raw material adaptability, energy conservation, emission reduction, clean production and the like, and more than 40 production lines adopting the oxygen bottom blowing smelting technology for lead smelting are tested in the market for more than ten years. The industrialized successful application of oxygen-enriched bottom blowing smelting opens up a new era of nonferrous metal smelting or noble metal trapping smelting taking copper and lead as carriers.

The bottom blowing smelting furnace is a horizontal cylindrical rotary furnace and comprises a furnace body, an oxygen lance and a burner; as shown in fig. 1 and 2, the furnace body shell is made of steel plate, a water jacket is not arranged, and chrome-magnesia bricks are lined; the furnace body is provided with a transmission device which can rotate 360 degrees. The furnace body is provided with a charging hole, a smoke outlet, a slag discharging hole, a sulfonium (copper) discharging hole and a detection hole, the bottom of the furnace body is provided with an oxygen gun, and the end wall fuel oil burner is used for furnace opening and heat preservation. The oxygen lance is an important part of the bottom blowing smelting furnace, and the basic structure is in the form of a multi-layer sleeve. The inner tube is filled with pulverized coal and carrier gas, and the middle is filled with oxygen for supplementing heat and providing oxygen for reaction; the outer tube is filled with nitrogen or compressed air for cooling and protecting the oxygen lance.

Because the bottom blowing smelting furnace is a cylindrical rotary metallurgical furnace kiln, the diameter of the bottom blowing smelting furnace cannot be overlarge due to the processing of rolling rings and gear rings and the stress condition of supporting rollers, the maximum specification of the bottom blowing smelting furnace put into production in the world is 5.8 x 30 m, and the bottom blowing smelting furnace is the shortest distance between a melt surface and a charging hole in the copper smelting and lead smelting industries with the formation scale at present. Therefore, the largest short plate in the bottom blowing smelting technology is that the strong stirring of high-pressure gas to the melt caused by an oxygen lance can inevitably cause a part of high-temperature melt to splash upwards to a feed inlet, and materials in the process of mixing and falling of the high-temperature melt or the high-temperature melt are adhered along the periphery under the feed inlet, and the feed inlet of each domestic oxygen bottom blowing smelting furnace at home and abroad is mostly in a water-cooling structure for protecting peripheral refractory materials. The structure is favorable for quick cleaning after bonding, but also makes the splashed high-temperature melt more easily bonded on the side wall of the charging hole, and the cleaning workload of the discharging hole is very large.

The high-temperature melt splashes to the feed inlet to be solidified when encountering cold so that the feed inlet is reduced, the feed inlet can be blocked when not being treated in time (the whole production line can be stopped when serious), the feed inlet needs to be cleaned manually in time, and usually one person is poked by an iron rod or two persons to cooperate with each other, one hammer is used, and the other hammer is used for supporting the drill rod, so that workers in the position are extremely easy to burn by the splashed high-temperature melt and smoke. In the last decade of the development of bottom blowing copper smelting or lead smelting, various automatic cleaning equipment or devices for charging ports are developed, and a great deal of work is done by a design house, but up to now, more than ten copper smelting enterprises and more than thirty lead smelting enterprises using the bottom blowing smelting technology adopt manual or semi-manual work to clean the charging ports.

Disclosure of Invention

The application aims to provide a brand-new cleaning device for adhesive materials at a charging hole of a bottom-blowing smelting furnace, which solves the problem of cleaning the adhesive materials at the charging hole of the bottom-blowing smelting furnace.

The technical scheme adopted by the application is as follows: the cleaning device for the adhesive at the charging hole of the bottom blowing smelting furnace is provided with a compound motion device and a cleaning rod, wherein the compound motion device carries the cleaning rod to move up and down and drives the cleaning rod to rotate around the axis of the cleaning rod; the cleaning knife arranged at the bottom of the cleaning rod enters a cylindrical charging hole of the bottom blowing furnace and moves upwards to lift the cleaning rod out of the charging hole; the composite motion device drives the cleaning rod to do up-and-down reciprocating motion while rotating around the axis of the cleaning rod, so that the motion track of the cleaning knife in the charging hole is a right circular cylinder, and the adhesive on the inner wall of the charging hole is cleaned.

Further, the compound motion device comprises a moving device and a rotating device, the moving device is provided with the rotating device, and the rotating device is connected with the cleaning rod; the moving device carries the rotating device and the cleaning rod to move up and down, so that the cleaning rod can enter and exit the charging hole or reciprocate up and down in the charging hole; the rotating device drives the cleaning rod to rotate around the axis of the cleaning rod.

In a preferred embodiment, the mobile device has the following specific structure: the mobile device is arranged on the frame and comprises a mobile platform, the mobile platform is sequentially connected with a hydraulic motor, an electromagnetic clutch and a first driving shaft horizontally supported by two first bearing seats, and a first gear which synchronously rotates is arranged on the first driving shaft; racks are symmetrically arranged on two sides of the first gear and fixedly connected with the rack; the movable platform moves up and down through relative motion between the first gear and the double racks fixed on the frame.

Furthermore, the mobile device can be matched with an auxiliary mobile system; the auxiliary moving system comprises four polished rods symmetrically distributed on four corners of the moving platform, and the four polished rods are vertically arranged in the frame, wherein the two polished rods at the front are provided with an upper pulley yoke and a lower pulley yoke, and the two polished rods at the back are provided with a group of pulley yoke; the pulley frame comprises pulley blocks at two ends and a connecting rod in the middle, the connecting rod is fixedly connected with the moving platform, and the pulley blocks are connected to the polish rod; the pulley block comprises two symmetrically installed pulleys, and a polish rod is clamped between the two pulleys; the pulley block can move up and down along the polish rod.

In a preferred embodiment, the specific structure of the rotating device is as follows: the rotating device comprises a power device, the power device is arranged on the moving platform, a driving shaft of the power device vertically penetrates through the moving platform downwards and is connected with a first middle transmission shaft through a coupler, the first middle transmission shaft penetrates through a second bearing seat, and the lower end of the first middle transmission shaft is connected with a vibration reduction device; the second bearing seat is connected to the mobile platform; the lower end of the vibration damper is connected with a second intermediate transmission shaft, and the lower end of the second intermediate transmission shaft is connected with the cleaning rod through a flange coupler.

In a preferred embodiment, the vibration damping device has the following specific structure: the vibration damping device comprises a middle sliding block coupler, two end cover assemblies and an even number of springs; the sliding block coupler mainly comprises two half couplers and an inner central sliding block, and the two half couplers can slide relatively through the sliding of the central sliding block; two end cover assemblies are symmetrically arranged at two ends of the sliding block coupler, an installation space is formed between the two end cover assemblies, an even number of springs are arranged in the installation space around the annular array of the sliding block coupler, the upper end and the lower end of each spring are fixed with the end cover assemblies at two sides, and the rotation directions of the adjacent springs are opposite; the connection relation between the vibration damper and the first and second middle drive shafts is that the bottom end of the first middle drive shaft is inserted into the upper part of the slide block coupling and connected; the top end of the second intermediate transmission shaft is inserted into the lower half coupling of the sliding block coupling and is connected with the sliding block coupling; the two half couplings can slide relatively through the sliding of the central sliding block, but the two half couplings slide to overcome the resistance formed by the springs due to the elastic connection of an even number of springs with opposite rotation directions.

Further, the two end cover assemblies are symmetrical in structure and comprise two outer cover plates and an even number of spring bases, and the number of the spring bases is 2 times that of the springs; the outer cover plate is a circular plate and is sleeved on the flange at the end part of the sliding block coupler, and the inner edge of the outer cover plate is fixed on the flange by using screws; an installation space is formed between the two outer cover plates, an even number of groups of spring bases are arranged in the installation space around the annular array of the sliding block coupler, each group of spring bases consists of an upper spring base and a lower spring base which are opposite, and the spring bases are fixed on the outer cover plates; the spring base comprises a bottom plate and two concentrically arranged circular side plates on the bottom plate, an annular groove is formed between the two circular side plates, and the end part of the spring is clamped in the annular groove and is fixed; each spring is fixed at a position through spring bases at the upper end and the lower end; each group of spring bases is provided with a stud bolt, the stud bolts are arranged on the axis of each group of spring bases and are positioned in the springs, two ends of each stud bolt penetrate out of the two outer cover plates, and the end part mounting nuts clamp the outer cover plates.

In a preferred embodiment, the cleaning rod is specifically configured as follows: the cleaning rod comprises a rod body, at least one cleaning knife which is distributed along the radial direction is arranged on the side surface of the bottom of the rod body, the cleaning knife is an alloy knife, the cleaning knife comprises a knife body, a 45-degree wedge-shaped knife head is formed at the head end of the knife body, and the knife head is parallel to the tangential direction of the feeding hole; the tail end of the cutter body is detachably connected to the rod body; specifically, be equipped with threaded connection portion on the body of rod, be equipped with the internal thread connecting hole on it, cutter body tail end is equipped with the external screw thread, cutter body tail end threaded connection is on threaded connection portion, and adjusts clearance sword extension length and fixes its position through lock nut.

In a preferred embodiment, one side of the cleaning rod is provided with a supporting platform; the vibrating device comprises a vibrating plate, a clamping device is arranged on the vibrating plate and used for clamping the cleaning rod, and the vibrating plate is driven by the vibrating device to reciprocate on the supporting platform so as to shake the cleaning rod to clean the adhesive on the cleaning rod.

The application has the beneficial effects that: in the cleaning device for the adhesive at the charging hole of the bottom blowing smelting furnace, the composite motion device carries the cleaning rod to move up and down and drives the cleaning rod to rotate around the axis of the cleaning rod; the cleaning knife arranged at the bottom of the cleaning rod enters a cylindrical charging hole of the bottom blowing furnace and moves upwards to lift the cleaning rod out of the charging hole; the composite motion device drives the cleaning rod to rotate around the axis of the cleaning rod and reciprocate up and down, so that the motion track of the cleaning knife in the charging hole is a right circular cylinder, and the adhesive on the inner wall of the charging hole is cleaned; the device can replace traditional manual clearance, reduces work load, improves cleaning efficiency, and automatic descaling machine of charge door can clear up 360 to the charge door in addition, does not have the dead angle ground.

Drawings

Fig. 1 is a schematic view of a part of the structure of a conventional bottom-blown smelting furnace production line.

FIG. 2 is an enlarged view of the charging port.

FIG. 3 is an illustration of the cleaning apparatus of the present application in an installed position.

Fig. 4 is a schematic front perspective view of the cleaning device.

Fig. 5 is a rear perspective view of the cleaning device.

Fig. 6 is a schematic perspective view of the frame.

Fig. 7 is a side view of the mobile device, the rotating device, and the cleaning bar assembled together.

Fig. 8 is a diagram showing the overall structure of the mobile device.

Fig. 9 is a front side partial structure display view of a mobile device.

Fig. 10 is a rear side partial structure display view of the mobile device.

Fig. 11 is an explanatory view of a connection structure of the pulley block and the optical lever.

Fig. 12 is a front view of the rotary device.

Fig. 13 is a side cut-away view of the rotary device.

Fig. 14 is a side sectional development view of the vibration damping device in the rotating device.

Fig. 15 is a top view showing the structure of the vibration damping device.

Fig. 16 is a schematic perspective view of a vibration damping device.

Fig. 17 is a structural representation of the spring mount.

Fig. 18 shows the overall construction of the cleaning rod.

Fig. 19 is a perspective view showing the bottom of the cleaning lever.

Fig. 20 is a structural representation of the cleaning blade.

Fig. 21 is a perspective view showing the structure of the sheath.

Fig. 22 is a schematic representation of the bottom view of the rapping device.

Fig. 23 is a schematic top view of the rapping device.

Fig. 24 is a view showing the rapping device in a separated state from the cleaning lever.

Fig. 25 is a position change diagram of the cleaning blade in the working state of the cleaning device according to the present application.

In the figure: a bottom blowing furnace 1, a charging port 101, a water-cooling jacket 102, a feeding platform 103, a feeding belt 104 and a material guiding pipe 105;

a frame 2 supporting the platform 201;

the device comprises a moving device 3, a moving platform 301, a rear horizontal carrier 301.1, a front vertical plate 301.2, a front horizontal carrier 301.3, a hydraulic motor 302, an electromagnetic clutch 303, a first bearing seat 304, a first driving shaft 305, a first gear 306 and a rack 307; polish rod 308, pulley yoke 309, pulley block 309.1, connecting rod 309.2,

a rotating device 4, a power device 401, a pin coupling 402, a first intermediate transmission shaft 403, a second bearing seat 404, a second intermediate transmission shaft 405, a flange coupling 406,

damping device 5, slide coupling 501, half coupling 501.1, central slide 501.2, outer cover 502, spring mount 503, bottom plate 503.1, circular side plate 503.2, spring 504, stud 505,

cleaning rod 6, rod body 601, cleaning knife 602, tool bit 602.1, threaded connection 603, lock nut 604, upper rod body 605, lower rod body 606, sheath structure 607, shell one 607.1, shell two 607.2, propeller blade 608;

rapping device 7, vibrating plate 701, slide bar 702, sliding seat 703, return spring 704, vibrating device 705, clamping device 706, clamping arm 706.1, clamping portion 706.2, rotating shaft 706.3, cylinder 706.4;

safety device 8, fixed pulley 801, pulling rope 802, counterweight 803, elastic stopper 804.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

Examples

The structure diagram of the existing bottom blowing smelting furnace production line is shown in fig. 1, and comprises a bottom blowing furnace 1, wherein a charging port 101 is arranged on the bottom blowing furnace 1, the charging port 101 is shown in an enlarged structure diagram of the charging port 101 in fig. 2, the charging port 101 is cylindrical, the inner diameter of the charging port 101 is generally 350-400mm, a layer of water-cooling jacket 102 is arranged on the periphery of the charging port 101, and the thickness of the inner wall of the water-cooling jacket 102 is generally 10mm; a feeding platform 103 is arranged above the bottom blowing furnace 1, a feeding belt 104 is arranged on the feeding platform 103, the tail end of the feeding belt 104 is positioned above the bottom blowing furnace 1, a material guiding pipe 105 is also arranged on the feeding platform 103, and the material guiding pipe 105 is positioned below the tail end of the feeding belt 104; during the rotation of the bottom blowing furnace 1, the bottom blowing furnace 1 is charged when the charging port 101 is opposite to the material guiding pipe 105.

As shown in fig. 3-5, the cleaning device of the present application is installed on the feeding platform 103 at the position of the feeding pipe 105, and is located at the opposite side of the end of the feeding belt 104; the cleaning device mainly comprises a frame 2, a moving device 3, a rotating device 4 and a cleaning rod 6. Wherein, the frame 2 is arranged on the feeding platform 103 above the bottom blowing furnace 1; as shown in fig. 6, the frame 2 is a steel structure frame and is formed by connecting a plurality of upright posts and cross bars; the moving device 3, the rotating device 4 and the cleaning rod 6 are assembled into a complete moving body (as shown in figure 7) and are arranged on the frame 2; wherein, the moving device 3 is connected with the frame 2 and moves up and down in the frame 2; a rotating device 4 is mounted on the moving device 3, and the rotating device 4 moves up and down along with the moving device 3; the rotating device 4 is connected with a cleaning rod 6, and the cleaning rod 6 is driven by the rotating device 4 to rotate around the axis of the rotating device;

as shown in fig. 25, during cleaning operation, the bottom blowing furnace 1 rotates until the charging port 101 is opposite to the material guiding pipe 105, the moving device 3 carries the rotating device 4 and the cleaning rod 6 to move downwards, the cleaning rod 6 passes through the material guiding pipe 105 to enter the charging port 101, and the cleaning rod 6 is coaxial with the charging port 101 and the material guiding pipe 105; the cleaning rod 6 is driven by the rotating device 4 to rotate, and the rotating device 4 rotates and moves up and down along with the moving device 3, so that the cleaning rod 6 rotates and moves up and down in a combined mode; at least one cleaning knife 602 distributed along the radial direction is arranged on the cleaning rod 6, and in the process of the compound movement, the movement track of the tool bit 602.1 end of the cleaning knife 602 in space is cylindrical, so that the adhesive on the inner wall of the charging hole 101 is cleaned, and the problem of blockage of the charging hole 101 is solved.

There are various embodiments of the moving means 3, the rotating means 4, the cleaning bar 6 according to the present application, which are exemplified below.

Referring to fig. 4, 5 and 7-11, a mobile device 3 according to the present application is understood as follows, in a preferred embodiment, the mobile device 3 includes a mobile platform 301, the mobile platform 301 includes a rear horizontal carrier 301.1, a front vertical plate 301.2 and a front horizontal carrier 301.3 (as shown in fig. 9 and 10), a first driving device is installed on the rear horizontal carrier 301.1, and the first driving device includes a hydraulic motor 302, an electromagnetic clutch 303 and a first driving shaft 305 horizontally supported by two first bearing seats 304, and a first gear 306 is installed on the first driving shaft 305 to synchronously rotate, as shown in fig. 10; racks 307 are symmetrically arranged on the left side and the right side of the first gear 306, and the racks 307 are fixedly connected with the frame 2. The moving platform 301 moves up and down by a relative motion between the first gear 306 and the double rack 307 fixed to the frame 2.

The hydraulic motor is selected in the moving device 3, so that the moving stability is good, and meanwhile, overload can be effectively avoided; in practical application, the speed of the hydraulic motor is inconsistent with the speed of the upward movement (the speed of lifting the cleaning rod 6 upward is higher than the speed of cleaning bonding downward) by using the speed regulating valve, and the speed can be regulated according to the actual kiln feeding amount and the quantity of bonding objects, so that the automatic control is convenient to realize.

Further improvement, in order to ensure the moving stability and safety of the moving platform 301, an auxiliary moving system is further added; as shown in fig. 8 and 9, the auxiliary moving system comprises four polished rods 308 symmetrically distributed on four corners of the moving platform 301, the four polished rods 308 are vertically installed in the frame 2, wherein an upper pulley frame 309 and a lower pulley frame 309 are arranged on the front two polished rods 308, and a group of pulley frames 309 are arranged on the rear two polished rods 308; the pulley frame 309 has the same structure and comprises pulley blocks 309.1 at two ends and a connecting rod 309.2 in the middle, wherein the connecting rod 309.2 is fixedly connected with the movable platform 301, and the pulley blocks 309.1 are connected on the polished rod 308; in this embodiment, the connecting rod 309.2 in the middle of the front two groups of the pulley frames 309 is fixedly connected with the front vertical plate 301.2 of the mobile platform 301, and the rear one group of the pulley frames 309 is connected with the bottom surface of the rear horizontal carrier plate 301.1;

as shown in fig. 11, one of the pulley blocks 309.1 is connected with the polish rod 308, the pulley block 309.1 comprises two symmetrically installed pulleys, and the polish rod 308 is clamped between the two pulleys; the pulley block 309.1 can move up and down along the polish rod 308;

in the embodiment, the moving device 3 drives the gear rack kinematic pair to move up and down on the polish rod 308 of the frame 2 through a hydraulic motor; the gear rack does not have a self-locking function, and the gear rack directly transmits power. The three sets of pulley frames 309 and the matched polish rod 308 ensure the accuracy of the up-and-down moving position of the moving device 3.

Referring to fig. 7, 9, 12 and 13, in a preferred embodiment of the rotating device 4 according to the present application, the rotating device 4 is vertically arranged and includes a power device 401, the power device 401 may be an electric motor or a hydraulic motor, etc., the power device 401 is mounted on a front horizontal carrier 301.3 of the moving platform 301, a driving shaft of the power device 401 vertically passes through the front horizontal carrier 301.3 downwards and is connected to a first intermediate transmission shaft 403 through a pin coupling 402, the first intermediate transmission shaft 403 passes through a second bearing seat 404, and a lower end is connected to a vibration damping device 5; as shown in fig. 7 and 13, the second bearing 404 is laterally connected to the front of the front vertical plate 301.2 of the mobile platform 301, and the second bearing 404 plays a supporting role; the lower end of the vibration damper 5 is connected with a second intermediate transmission shaft 405, and the lower end of the second intermediate transmission shaft 405 is connected with the cleaning rod 6 through a flange coupler 406.

As shown in fig. 14 to 16, which are structural explanatory views of the damper 5, the damper 5 includes a middle slider coupling 501, two end cap assemblies, an even number of springs 504 (6 are provided in the present embodiment), and stud bolts 505; the sliding block coupling 501 mainly comprises two half couplings 501.1 and an inner central sliding block 501.2 (existing product), and the two half couplings 501.1 can slide relatively through the sliding of the central sliding block 501.2; two end cover assemblies are symmetrically arranged at two ends of the sliding block coupler 501, the two end cover assemblies are symmetrical in structure and comprise two outer cover plates 502 and an even number of spring bases 503, and the number of the spring bases 503 is 2 times that of springs 504 (12 springs are arranged in the embodiment); wherein the outer cover plate 502 is a circular plate, is sleeved on the flange at the end part of the sliding block coupler 501, and the inner edge of the outer cover plate 502 is fixed on the flange by using screws; an installation space is formed between the two outer cover plates 502, in the installation space, an even number of groups of spring bases are annularly arranged around the sliding block coupler 501, each group of spring bases consists of an upper spring base 503 and a lower spring base 503 which are opposite, and the spring bases 503 are fixed on the outer cover plates 502; as shown in fig. 17, the spring base 503 is shown in a structural representation, the spring base 503 includes a bottom plate 503.1 and two concentrically arranged circular side plates 503.2 on the bottom plate, an annular groove is formed between the two circular side plates 503.2, and the end of the spring 504 is clamped in the annular groove and fixed, which may be welded or other fixing modes; each spring 504 is fixed by a spring base 503 at the upper end and the lower end, the rotation directions of the adjacent springs 504 are opposite, six springs 504 are arranged in the embodiment, three rotation directions are right rotation, three rotation directions are left rotation, the end parts are tightly fastened and ground, and the support ring is one ring; in addition, each set of spring mounts 503 is provided with a stud 505, the stud 505 being mounted on the axis of each set of spring mounts 503, within the spring 504, with two outer cover plates 502 extending from opposite ends, and end mounting nuts clamping the outer cover plates.

As shown in fig. 14, the vibration damping device 5 is connected to the first intermediate transmission shaft 403 and the second intermediate transmission shaft 405 in such a manner that the bottom end of the first intermediate transmission shaft 403 is inserted into and connected to the upper half coupling 501.1 of the slider coupling 501; the top end of the second intermediate transmission shaft 405 is inserted into the lower half coupling 501.1 of the slide coupling 501 and connected; the two coupling halves 501.1 can slide relatively by sliding of the central slider 501.2, but due to the elastic connection of an even number of oppositely rotating springs 504, the two coupling halves 501.1 need to slide against the resistance created by the springs 504.

The cleaning bar 6 is coupled to the power unit 401 by means of a vibration damping device 5, which functions as follows:

(1) The main function of the vibration damper 5 is to transmit the torque of the power device 401 to the cleaning rod 6, so that the cleaning rod 6 is rigid enough and the rotation device 4 is not blocked in the falling process of lump materials in the materials; specifically, when a large block of material is clamped between the cleaning rod 6 and the inner wall of the charging hole 101, the cleaning rod 6 is driven by the elasticity of the vibration reduction device 5 and the moving device 3 to move up and down, and the block is extruded and deformed or crushed and is sent into the furnace along with the cleaning rod 6 moving up and down; thereby avoiding the blockage of the feed inlet 101 and the jamming of the rotary device 4 caused by the lump materials entrained in the material.

(2) When the cleaning rod 6 is lifted from the charging hole 101 to perform vibration cleaning, the vibration damper 5 can isolate the vibration of the cleaning rod 6, so that the vibration is prevented from being transmitted to the bearing seat of the rotating device 4 and the power device 401 to cause equipment damage; the structure of the rapping device 7 will be described in detail later.

(3) The direction of the resistance force applied to the cleaning rod 6 in the actual cleaning process is uncertain, so that the rotating device 4 can vibrate, the rotation directions of the adjacent springs 504 are opposite, and the forces in different directions can be borne, so that the transmission of the non-directional vibration is relieved.

The rotating device 4 is specifically described below; the first intermediate transmission shaft 403, the second bearing seat 404, the second intermediate transmission shaft 405, the vibration damping device 5, the flange coupling 406, etc. in the rotating device 4 are optional configurations; the simplest rotation means 4 are: the power unit 401 is directly connected with the cleaning rod 6 through a coupling.

Referring to fig. 7 and 18-21, in a preferred embodiment of the cleaning rod 6 according to the present application, the cleaning rod 6 includes a rod body 601, the rod body 601 is an elongated rod with a length of 2m-3m and a diameter of 60mm-80mm, and at least one cleaning knife 602 distributed along a radial direction is disposed on a bottom side of the rod body 601; as shown in fig. 19, four cleaning blades 602 are uniformly distributed, and the cleaning blades 602 are alloy blades; as shown in fig. 20, the cleaning blade 602 includes a blade body, a blade 602.1 is formed at the head end of the blade body, and the blade 602.1 is preferably a 45 ° wedge blade, which is parallel to the tangential direction of the charging port 101, so as to avoid the blade 602.1 damaging the inner wall of the charging port 101 during cleaning; the detachable connection of cutter body tail end is on body of rod 601, specifically, is equipped with threaded connection portion 603 on the body of rod 601, is equipped with the internal thread connecting hole on it, and the cutter body tail end is equipped with the external screw thread, and cutter body tail end threaded connection is on threaded connection portion 603, and adjusts clearance sword 602 extension and fixes its position through lock nut 604. Thus, not only can the cleaning effect be increased by adjusting the rotation diameter of the cleaning blade 602, but also the cleaning blade 602 can be conveniently replaced.

The cleaning bar 6 can also be optimized and improved as follows: as shown in fig. 20, during normal operation, the rotating device 4 rotates in only one direction; when an emergency occurs, if the tool bit part at the lower part of the cleaning rod 6 is stuck in the charging hole 101, the cleaning rod 6 is blocked in the charging hole 101, and the normal operation moving device 3 cannot move up and down, at this time, the cleaning rod 6 cannot lift out of the bottom blowing furnace 1, so that the bottom blowing furnace 1 cannot normally perform converter; to solve this problem, the cleaning lever 6 is further modified as follows: as shown in fig. 18, the cleaning rod 6 is improved into a two-stage structure of screw connection, for example, as shown in fig. 18, a rod body 601 of the cleaning rod 6 is divided into an upper rod body 605 and a lower rod body 606, the upper rod body 605 is provided with a screw connection port at the bottom end, the lower rod body 606 is provided with a screw connection port at the top end, the screw connection port is screwed into the screw connection port and locked, and the rotation direction is consistent with the locking rotation direction in normal operation; the cutter body is mounted on the lower rod body 606;

when the emergency is met, the rotating device 4 or the moving device 3 sends an overload signal to the control system, the control system controls the rotating device 4 to rotate reversely, the screw rod connecting structure is disconnected, the moving device 3 carries the upper rod body 605 to lift out of the bottom blowing furnace 1, and the lower rod body 606 is temporarily left in a normal converter in the charging port 101 of the bottom blowing furnace 1; after the furnace is turned out, the charging port 101 is cleaned exclusively, and the lower rod 606 is taken out.

Furthermore, in order to avoid that the lead screw connection structure enters splash and the lead screw connection cannot be disconnected, a sheath structure 607 is additionally arranged at the lead screw connection structure; as shown in fig. 18 and 21, a first conical shell 607.1 is arranged at the bottom end of the upper rod 605 around the screw rod connection part, a second conical shell 607.2 is arranged at the top end of the lower rod 606 around the screw rod connection part, and after the upper rod 605 and the lower rod 606 are connected into a whole, the second conical shell 607.2 seals the bottom opening of the first conical shell 607.1 to form a closed space for sealing the screw rod connection structure inside; thereby avoiding the entry of splashes or dust.

Further, as shown in fig. 18 and 19, the cleaning rod 6 may further be provided with a propeller 608 to rotate synchronously with the cleaning rod 6, and in a preferred embodiment, the propeller 608 has three propeller blades, and is mounted on the upper rod 605, and the propeller 608 rotates in the material guiding tube 105.

The function of the propeller blades 608 is:

(1) The material feeding pipe 105 plays a role in material distribution, and materials entering the material feeding pipe 105 are scattered on the rotating paddles and enter the bottom blowing furnace 1 through the feed opening after rotating and dispersing along with the paddles;

(2) Under the intervention of the propeller blade 608, the material entering the feed opening can fall along the inner wall to form a 'material curtain', so that most of splashes are pressed, and the bonding speed and amount are reduced; in addition, a material seal which is not easy to adhere is formed, the amount of cold air entering the blanking opening is reduced, the space temperature of the blanking opening is increased, and the formation of adhesion is relieved.

Furthermore, a vibrating device 7 can be additionally arranged in the cleaning device for vibrating and dropping the adhesive on the cleaning rod 6 so as to ensure the cleaning effect of the cleaning rod 6. With reference to fig. 4, 22-24, a rapping device 7 of the present application, as described below, is understood; as shown in fig. 4, a supporting platform 201 is arranged on one side of the cleaning rod 6 on the frame 2; the supporting platform 201 is provided with the rapping device 7, the rapping device 7 comprises a vibrating plate 701, the vibrating plate 701 is provided with a clamping device 706, the clamping device 706 is used for clamping the cleaning rod 6, and the vibrating plate 701 is driven by the vibrating device 705 to reciprocate on the supporting platform 201 so as to shake the cleaning rod 6, so that the adhesive on the cleaning rod 6 is cleaned.

In a preferred embodiment, the rapping device 7 is structured as follows: as shown in fig. 22, two parallel slide bars 702 are arranged on the supporting platform 201, and the slide bars 702 are vertically directed to the vertical surface where the cleaning bar 6 is located; four sliding seats 703 are arranged at the bottom of the vibrating plate 701, and the vibrating plate 701 is connected to two slide bars 702 in a sliding manner through the four sliding seats 703; return springs 704 are arranged at two ends of each slide bar 702 to clamp the sliding seat 703 in the middle; a vibration device 705, such as a pneumatic knocking hammer (existing product), is installed at the center of the bottom surface of the vibration plate 701, and the knocking direction of the pneumatic knocking hammer is the same as the direction of the slide bar 702; when the pneumatic knocking hammer works, the vibrating plate 701 is driven to reciprocate along the slide bar 702 in a back-and-forth tiny displacement manner; after the clamping device 706 on the upper surface of the vibration plate 701 clamps the cleaning rod 6, the reciprocating motion of the vibration plate 701 is transferred to the cleaning rod 6, and the cleaning rod 6 throws away the adhesive during the shaking process.

As shown in fig. 23 and 24, a preferred embodiment of the clamping device 706 is as follows: the clamping device 706 comprises two clamping arms 706.1, the middle parts of the two clamping arms 706.1 are rotatably connected to a rotating shaft 706.3 on the upper surface of the vibration plate 701, two clamping arms 706.1 are respectively provided with a clamping part 706.2 near the end of the cleaning rod 6, and the two clamping arms 706.1 far away from the end of the cleaning rod 6 are connected together by a double-head extending cylinder 706.4; as shown in fig. 23, the two ends of the cylinder 706.4 are extended simultaneously, the two clamping arms 706.1 rotate around the respective central rotating shafts 706.3, and the two clamping portions 706.2 approach each other until they hold the cleaning rod 6. As shown in fig. 24, both ends of the cylinder 706.4 are shortened at the same time, and the two holding portions 706.2 are separated from each other away from the cleaning lever 6.

In addition, the preferred shape of the gripping portion 706.2 is semi-cylindrical, with the two gripping portions 706.2 embracing the cleaning rod 6 to form a complete cylinder to hold the cleaning rod 6 inside.

The vibration device 7 can transmit the vibration upwards to the power device 401 above the cleaning rod 6 when the cleaning rod 6 is rocked, so that the power device 401 is damaged and the operation is unstable; the present application provides a vibration damping device 5 between the purge rod 6 and the power unit 401.

The workflow of the device of the application is shown in figure 25:

in the figure, (A) is in a standby state of the cleaning device, the moving device 3 is at the highest position of the frame 2, the cleaning knife 602 on the cleaning rod 6 does not extend into the charging port 101 of the bottom blowing furnace 1, and the bottom blowing furnace can perform normal process operation;

in the figure, (B) and (C) are working states of the cleaning device, firstly, the bottom blowing furnace 1 rotates until the charging port 101 is opposite to the material guiding pipe 105; the moving device 3 moves downwards, and the cleaning knife 602 enters the material guiding pipe 105; then, the rotating device 4 is started to drive the cleaning knife 602 to rotate (shown as B); then, the moving device 3 drives the rotary cleaning knife 602 to move downwards into the charging port 101 (shown as C) and clean to the bottom of the charging port 101, and then the moving device 3 moves back into the material guiding pipe 105; the reciprocating motion is performed in this way, after the set reciprocating cycle times are reached, the moving device 3 moves upwards to drive the cleaning knife 602 to leave the charging port 101 of the bottom blowing furnace 1, and then the rotating device 4 stops; the bottom blowing furnace 1 can perform converter actions or other process operations; starting a rapping device 7 to clean the cleaning rod 6; at the end of the cleaning, the rapping device 7 is separated from the cleaning rod 6, and the cleaning device is re-brought into a standby state.

In order to further improve the use safety of the cleaning device, a safety device 8 is also designed in the device; mainly aims at the emergency of sudden power failure, the equipment is suddenly powered off, the cleaning rod 6 stays in the charging port 101 of the bottom blowing furnace 1, and if the cleaning rod 6 is not timely lifted out of the charging port 101, the converter of the bottom blowing furnace 1 is influenced to cause equipment accidents; the safety device 8 designed for this purpose is: in the event of a sudden power failure, the weight 803 is used to pull the moving means 3 upwards, lifting the cleaning rod 6 out of the charging opening 101.

As shown in fig. 5, a fixed pulley 801 is arranged at the top of the frame 2, one end of a traction rope 802 penetrating through the fixed pulley 801 is connected to the moving device 3, the other end is connected with a counterweight 803, and the weight of the counterweight 803 is slightly larger than that of the whole moving device 3 and the rotating device 4; for example, as shown in fig. 5, two parallel pulling ropes 802 are connected at one end to the moving platform 301 and at the other end to a counterweight 803 passing through two sets of parallel fixed pulleys 801, the counterweight 803 being located on the opposite side of the rapping device 7.

The weight 803 can pull the mobile device 3 upwards under the condition of power failure, and the structure of the mobile device 3 is not separated; the electromagnetic clutch 303 on the moving device 3 can be automatically powered off and disconnected, and the moving device 3 is not limited by the hydraulic motor 302; in addition, since the rack and pinion 307 does not have a self-locking function, the force of the moving device 3 against the weight 803 lifts the cleaning rod 6 from the charging port 101.

Further, in order to relieve the force of the moving device 3 striking the frame 2 during the lifting process of the weight 803, an elastic blocking member 804 is disposed on the top of the frame 2; for example, as shown in fig. 6, a rubber buffer is sleeved on top of the four polish rods 308 to limit the pulley block 309.1 to move upwards.

It will be understood that the application has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the application. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the application without departing from the essential scope thereof. Therefore, it is intended that the application not be limited to the particular embodiment disclosed, but that the application will include all embodiments falling within the scope of the appended claims.

Claims (8)

1. The utility model provides a bottom blowing smelting furnace charge door bonding thing cleaning device, has compound motion device and clearance pole, characterized by: the compound motion device comprises a moving device and a rotating device, wherein the moving device is provided with the rotating device, and the rotating device is connected with the cleaning rod; the moving device carries the rotating device and the cleaning rod to move up and down, so that the cleaning rod can enter and exit the charging hole or reciprocate up and down in the charging hole; the rotating device drives the cleaning rod to rotate around the axis of the cleaning rod; when the cleaning rod moves downwards, a cleaning knife arranged at the bottom of the cleaning rod enters a cylindrical charging hole of the bottom blowing furnace, and the cleaning rod is lifted out of the charging hole by moving upwards; the composite motion device drives the cleaning rod to rotate around the axis of the cleaning rod and reciprocate up and down, so that the motion track of the cleaning knife in the charging hole is a right circular cylinder, and the adhesive on the inner wall of the charging hole is cleaned; the rotating device comprises a power device, a driving shaft of the power device is downwards connected with a first middle transmission shaft, and the lower end of the first middle transmission shaft is connected with a vibration reduction device; the lower end of the vibration damper is connected with a second intermediate transmission shaft, and the lower end of the second intermediate transmission shaft is connected with a cleaning rod through a flange coupler; the vibration damper comprises a middle sliding block coupler, two end cover assemblies and an even number of springs; the slide block coupler mainly comprises two half couplers and an inner central slide block; two end cover assemblies are symmetrically arranged at two ends of the sliding block coupler, an installation space is formed between the two end cover assemblies, an even number of springs are arranged in the installation space around the annular array of the sliding block coupler, the upper end and the lower end of each spring are fixed with the end cover assemblies at two sides, and the rotation directions of the adjacent springs are opposite; the connection relation between the vibration damper and the first and second middle drive shafts is that the bottom end of the first middle drive shaft is inserted into the upper part of the slide block coupling and connected; the top end of the second intermediate transmission shaft is inserted into the lower half coupling of the sliding block coupling and is connected with the sliding block coupling; the two half couplings can slide relatively through the sliding of the central sliding block, but the two half couplings slide to overcome the resistance formed by the springs due to the elastic connection of an even number of springs with opposite rotation directions.

2. The bottom-blowing smelting furnace feed inlet bond cleaning device according to claim 1, characterized in that: the mobile device is arranged on the frame and comprises a mobile platform, the mobile platform is sequentially connected with a hydraulic motor, an electromagnetic clutch and a first driving shaft horizontally supported by two first bearing seats, and a first gear which synchronously rotates is arranged on the first driving shaft; racks are symmetrically arranged on two sides of the first gear and fixedly connected with the rack; the movable platform moves up and down through relative motion between the first gear and the double racks fixed on the frame.

3. The bottom-blowing smelting furnace feed inlet bond cleaning device according to claim 2, characterized in that: an auxiliary moving system is additionally arranged; the auxiliary moving system comprises four polished rods symmetrically distributed on four corners of the moving platform, and the four polished rods are vertically arranged in the frame, wherein the two polished rods at the front are provided with an upper pulley yoke and a lower pulley yoke, and the two polished rods at the back are provided with a group of pulley yoke; the pulley frame comprises pulley blocks at two ends and a connecting rod in the middle, the connecting rod is fixedly connected with the moving platform, and the pulley blocks are connected to the polish rod; the pulley block comprises two symmetrically installed pulleys, and a polish rod is clamped between the two pulleys; the pulley block can move up and down along the polish rod.

4. The bottom-blowing smelting furnace feed inlet bond cleaning device according to claim 2, characterized in that: the power device is arranged on the moving platform, a driving shaft of the power device vertically penetrates through the moving platform downwards and is connected with a first middle transmission shaft through a coupler, the first middle transmission shaft penetrates through a second bearing seat, and the lower end of the first middle transmission shaft is connected with the vibration reduction device; the second bearing seat is connected to the mobile platform.

5. The bottom-blowing smelting furnace charge door bonding object cleaning device according to claim 4, characterized in that: the two end cover assemblies are symmetrical in structure and comprise two outer cover plates and an even number of spring bases, and the number of the spring bases is 2 times that of the springs; the outer cover plate is a circular plate and is sleeved on the flange at the end part of the sliding block coupler, and the inner edge of the outer cover plate is fixed on the flange by using screws; an installation space is formed between the two outer cover plates, an even number of groups of spring bases are arranged in the installation space around the annular array of the sliding block coupler, each group of spring bases consists of an upper spring base and a lower spring base which are opposite, and the spring bases are fixed on the outer cover plates; the spring base comprises a bottom plate and two concentrically arranged circular side plates on the bottom plate, an annular groove is formed between the two circular side plates, and the end part of the spring is clamped in the annular groove and is fixed; each spring is fixed at a position through spring bases at the upper end and the lower end; each group of spring bases is provided with a stud bolt, the stud bolts are arranged on the axis of each group of spring bases and are positioned in the springs, two ends of each stud bolt penetrate out of the two outer cover plates, and the end part mounting nuts clamp the outer cover plates.

6. The bottom-blown smelting furnace charge door bonding material cleaning device according to any one of claims 1-5, characterized in that: the cleaning rod comprises a rod body, at least one cleaning knife which is distributed along the radial direction is arranged on the side surface of the bottom of the rod body, the cleaning knife is an alloy knife, the cleaning knife comprises a knife body, a 45-degree wedge-shaped knife head is formed at the head end of the knife body, and the knife head is parallel to the tangential direction of the feeding hole; the tail end of the cutter body is detachably connected to the rod body.

7. The bottom-blowing smelting furnace feed inlet bond cleaning device according to claim 6, wherein: the rod body is provided with a threaded connection part, an internal threaded connection hole is formed in the rod body, the tail end of the cutter body is provided with external threads, the tail end of the cutter body is in threaded connection with the threaded connection part, and the extension length of the cleaning cutter is adjusted through a locking nut and the position of the cleaning cutter is fixed.

8. The bottom-blowing smelting furnace feed inlet bond cleaning device according to claim 1, characterized in that: one side of the cleaning rod is provided with a supporting platform; the vibrating device comprises a vibrating plate, a clamping device is arranged on the vibrating plate and used for clamping the cleaning rod, and the vibrating plate is driven by the vibrating device to reciprocate on the supporting platform so as to shake the cleaning rod to clean the adhesive on the cleaning rod.