JPS63183375A - Self-propelling type skimming device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention generally relates to a freely movable (self-propelled) slag removal device for removing floating substances floating on the surface of molten metal during metal refining, and in particular to The present invention relates to a self-propelled sludge removal device suitable for removing sludge generated in a refining furnace.

For example, in refining furnaces used in steel manufacturing, slag consisting of various metal oxides, etc. is deposited on the surface of molten copper.
floats on the surface, and it is necessary to remove it as appropriate.

In particular, the removal of silt in a copper refining furnace is carried out using copper inlet/outlet ports provided at several locations in the longitudinal direction of the cylindrical refining furnace. The opening for the copper to be taken in and out is relatively small, and conventionally the sludge inside the refining furnace was removed by a worker using a scraping rod with a scraping plate attached to the end of a long and thin rod. Such manual work is not only inefficient, but also poses problems in terms of work safety.

For example, in a lead refining furnace, as shown in FIG. First and second arms 304.306
A scraping plate 308 is attached to the tip of the first arm, and floating matter (dross) 3 in the refining furnace is removed by operating the first and second arms with a hydraulic cylinder device 21310.
A slag removal device for removing 22 has been proposed. However, in this device, the arm 30 is large and heavy.
4,306 has to be operated, which makes the device extremely large and complex, which not only increases manufacturing costs but also causes frequent breakdowns and requires a lot of time and money for maintenance. be. Furthermore, although such a device can be used in a rotary furnace with an open top, it should not be used in cases such as copper refining furnaces where the window for extracting grains is small and located on the side of the refining furnace. is difficult or impossible.

&1511 An object of the present invention is to provide a self-propelled sludge removal device that has a simple structure, less trouble, good operability, and is relatively small.

Another object of the present invention is to provide a self-propelled slag removing device that eliminates the need for workers to directly approach the refining furnace and allows the worker to move freely and improve work safety. It is.

Still another object of the present invention is to provide a self-propelled slag removal device that can be particularly suitably used in copper refining furnaces.

The first object is achieved by the self-propelled slag removal device according to the present invention. In summary, the present invention includes a self-propelled means equipped with a track ring, an upper rotating means rotatably attached to the self-propelled means, and a sludge removal stage attached to the upper rotating means. The sludge removing means includes a hollow scraping arm having a scraping member at its tip for scraping out floating matter in the refining furnace, a carrier that swingably supports the other end of the scraping arm, and the scraping arm. a driving means for swinging the arm;
an elongated carrier guide provided with a rail that engages with a support roller provided on the carrier and supports the carrier movably along the longitudinal direction of the scraping arm; and a carrier guide provided at both ends of the carrier guide. carrier drive chain means having a sprocket wheel and a chain stretched between the sprocket wheels and connected to the carrier; acting on the sprocket wheel;
The self-propelled sludge removal device is characterized in that it has a drive means for driving the carrier drive chain means and causing the carrier to reciprocate along the axis of the carrier guide.

According to a preferred embodiment of the present invention, the carrier guide has an inverted U-shape in cross section, and the rail includes upper and lower rails spaced apart from each other on both inner sides of the carrier guide. The roller has 7-shaped grooves arranged on each side of the carrier, two above and below, so that the V-groove of the carrier support roller fits into the upper rail and lower rail provided on the carrier guide. The scraping arm has a large diameter portion, the diameter of which gradually decreases toward the tip where the scraping member is attached.
It is formed of a three-stage hollow shaft consisting of a medium diameter part and a small diameter part, and is preferably configured to supply cooling air to the inside of the scraping arm to cool the writing arm and the scraping member.

1 Practical Example Next, the self-propelled slag removing device according to the present invention will be explained in more detail with reference to the drawings.

Referring to FIGS. 1 to 3, the self-propelled sludge removal bag 211 according to the present invention includes a self-propelled means 6 equipped with a track ring 4, and an upper part rotatably attached to the self-propelled means 6. A turning means 8;
The upper rotating means 8 is equipped with a sludge removing means IO attached to the upper rotating means 8.

As can be better understood with reference to FIG. 4, the self-propelled means 6 is equipped with a track ring 4 on a bogie 2, similar to a tracked vehicle used in construction machinery, etc., and each It has a normal structure that allows it to freely move forward, backward, left and right by operating a traveling hydraulic motor 3 provided on the endless track ring 4.

The structure of such self-propelled means is well known to those skilled in the art and will not be described in further detail.

The upper turning means 8 is rotatably attached to the truck 2 of the self-propelled means 6 via a turning mechanism 12 (FIG. 3). The upper turning means 8 is an operator equipped with various control panels and operation levers for controlling the turning of the upper turning means 8 with respect to the truck 2 and driving control of the traveling means 6 and the sludge removal means IO. - Equipped with a driver's cab 14 for night driving, and a power room 16 in which power equipment such as electric motors and hydraulic pumps for the self-propelled means 6 and the sludge removing means 10, control equipment, etc. are mounted.

Next, the sludge removing means 10 attached to the upper turning means 8 will be explained.

As can be seen in FIG. 1, the sludge removal means 10 has a carrier guide 20 integrally secured to the upper pivot means. The carrier guide 20 has an elongated shape to form an elongated space suitable for accommodating and moving a carrier 22, which will be described in detail later.
As shown in the figure, it is shaped like an inverted U. Typically, the wire carrier guide is preferably a frame structure formed using various sections of steel to reduce weight, as illustrated in Figures 4-6. An upper rail 24 and a lower rail 26 are provided on both inner sides of the carrier guide 20 and are spaced apart from each other. In this embodiment, the upper rail 24 is fixed to the lower surface of the U-shaped steel provided at the inner upper corner of the carrier guide, and the lower rail 26 is fixed to the support plate 3 attached to the lower end of the carrier guide.
Fixedly installed on the top surface of 0. Each rail 24, 26 may have any cross-sectional shape, but in this example it is trapezoidal.

Next, the carrier 22 will be explained with reference to FIGS. 6 to 8. The carrier 22 has eight support rollers 32 having nine grooves to fit the upper rail 24 and lower rail 26 provided on the carrier guide 20. The support roller 32 is attached to an axle 40 which is rotatably fitted in a bearing block 34, 36 via a bearing 38. The bearing blocks 34, 36 are integrated with an upper connecting plate 42 and a non-connecting plate 44.

The carrier 22 thus configured is fitted closely to the upper and lower rails 24, 26 provided on the carrier guide 20, as shown in FIG. That is, the carrier guide is movable along the axial direction with movement (backlash) in the vertical and horizontal directions being restricted.

The carrier guide 20 is further provided with carrier driving means 50 for driving the carrier 22 along the axial direction. As shown in FIGS. 4 and 5, the carrier drive means 50 is a chain drive means, and includes sprocket wheels 52 and 54 provided at both ends of the carrier guide 20, and a chain between the two sprocket wheels. A stretched chain 56 is provided. To explain further, the sprocket wheel 52 disposed at the right end of the carrier guide 20 in FIG. 4 is used as a driving sprocket, and as shown in FIG.
In this embodiment, two sprocket wheels 52 are provided close to both inner side walls of the carrier guide 20. The axle 60 also extends through the carrier guide 20 and is connected to a coupling 62 as shown in FIGS.
An electric motor M disposed in the power chamber 16 of the upper revolving body via
connected to. On the other hand, the sprocket wheel 54 disposed on the other side of the carrier guide 20 is a driven 9-keet wheel, and is rotatably attached to the carrier guide 20 via a bearing member 64, as shown in FIG. 1O. In this embodiment, two sprocket wheels 54 are fixed to the axle 66 and are provided close to both inner side walls of the carrier guide 20 in correspondence with the sprocket wheels 52.

A chain is stretched between the sprocket wheels 52 and 54, and both ends 56a of the chain are connected as shown in FIGS. 6 and 7.
As shown in the figure, it is connected to the carrier 22 via tension adjustment means 70 provided on the side of the carrier 22. The main running portion 56A of the chain 56 runs along the upper rail 2 of the carrier guide, as best illustrated in FIG.
4 is attached to the U-shaped steel, and the aging section 56B is stretched and arranged so as to run between the upper and lower sprocket wheels 32.

In the above configuration, by driving the electric motor M in the forward and reverse directions, the carrier 22 is able to reciprocate within the carrier guide 20 along the axial direction. According to the above configuration, as described above, the carrier 22 can be extremely smoothly driven within the carrier guide 20 along the rails 24 and 26 without vertical and horizontal play by the carrier drive chain means.

As shown in FIG. 4, the carrier 22 supports a scraping arm 82 having a scraping member 80t at its tip for scraping out floating matter in the refining furnace 200.

As best illustrated in FIGS. 11 and 12, the scraping arm 82 has a large diameter portion 84 and a medium diameter portion, the diameter of which gradually decreases toward the tip where the scraping member 80 is attached. 86 and a small diameter portion 88. The shaft is preferably made of heat resistant steel. By configuring the scraping arm 82 in this way, the strength of the scraping arm 82 can be increased and the weight can be significantly reduced, so that the carrier 22 that supports the scraping arm 82 can be
This also has the effect of simplifying and downsizing the structure of the carrier guide. Furthermore, as the scraping arm 82 and the carrier 22 are made lighter and smaller, the inertia of the movable members can be reduced, so the driving speed of these members can be increased, and the sludge removal operation can therefore be carried out quickly. There is profit.

A shaft 90 is fixed adjacent to the rear end of the scraping arm 82, that is, the rear end of the large diameter portion 84. The shaft 90 is rotatably attached to a YX-shaped support arm 92 fixed to the bottom of the carrier 22. Further, a bifurcated protruding plate member 94 is provided at the rear end of the scraping arm 82, and the protruding plate member 94 is rotatably connected to one end of a hydraulic cylinder 96 provided on the carrier 22 via a shaft 98. be done.

The hydraulic cylinder 96 has a swing shaft 100.
00 is rotatably supported on a fixed plate 102.104 arranged between both blocks 34.36 of the carrier 22 and fixed to the blocks 34.36, as understood from FIGS. 6 to 8. has been done.

Therefore, in the above configuration, when hydraulic oil is supplied to the hydraulic cylinder 96 from the hydraulic pump P of the power chamber 16, the scraping arm 82 moves to the horizontal reference position ZiH with the axis 90 as the center.
θ1 and θ2 upward and downward from (Fig. 11), respectively.
It is only shaken. The 01 and θl are as understood from FIG.

Although it can be changed arbitrarily depending on the length of the scraping arm, the structure of the refining furnace, etc.1, in a normal copper refining furnace.

If the length of the scraping arm 82 is about 5 m, it would be sufficient to set θ1 to 3 degrees and θ2 to 10 degrees.

Scraping member 8 provided at the tip of scraping arm 82
0 may have any structure, but in this embodiment, as shown in FIGS. 11 and 12, it is fitted to the tip of the small diameter portion 88 of the scooping arm 82, and the small diameter portion is inserted into the bottle 11O. 8
The mounting fixed at 8 has an axis 112 and a vertical plate 114 fixed perpendicular to the axis 112. Furthermore, the vertical plate 1
A side plate 116 is attached to 14 in a somewhat expanded state.

Further, as shown in FIG. 11, an air supply pipe 120 is disposed to penetrate inside the hollow scraping arm 82. The air supply pipe 120 is introduced into the arm 82 from the large diameter part of the scraping arm 82, and is held approximately at the center by a suitable support ring 124 provided within the arm 82, and its outlet is connected to the shaft 112. located close to. With this configuration, the cooling air discharged to the tip of the arm through the air supply pipe 120 cools the tip of the scraping arm 82 and the scraping member 80, and then flows toward the large diameter portion of the scraping arm 82. The liquid flows while being cooled, and after cooling the scraping arm 82, it is discharged to the outside from the discharge port 122 formed in the large diameter portion.

Next, the operation of the self-propelled slag removal device configured as described above will be explained.

The operator first drives and controls the self-propelled means 6 to operate the sludge removing device 21.
Then, the upper rotating means 8 is rotated to fit the sludge removing means 10 into the floating object scraping window 202 (FIG. 4) of the refining furnace 200.

Next, the operator operates the swinging hydraulic cylinder 96 of the scraping arm 82 to move the arm 82 in the vertical direction so that the scraping arm 82 of the sludge removing means 10 is placed in a position that matches the scraping window 202 of the refining furnace 200. Make it sway. Once the angular position of the arm 82 is determined, the operator activates the carrier drive means, ie the hydraulic motor M.
The carrier 22 is moved along the carrier guide 20. As the carrier 22 moves, the scraping arm 82
approaches the refining furnace 200 and is introduced into the refining furnace through the scraping window 202. The operator further operates the hydraulic cylinder 96 and the hydraulic motor M to scrape out floating matter inside the refining furnace 200 through the window 202.

Of course, each of the above-mentioned operations, that is, traveling of the self-propelled means 6, turning of the upper turning means 8, and swinging and moving of the scraping arm 82 up and down and back and forth, may be performed singly or in parallel at any time.

The self-propelled sludge removal device according to the present invention, which is constructed and operates as described above, has a simple structure, few failures, and good operability.
There is also the potential benefit of a relatively compact device. Furthermore, since the device of the present invention is self-propelled and the writing arm can be driven in various directions, there is no need for workers to approach the refining furnace directly, which improves work safety and greatly improves work efficiency. It has the advantage of high working efficiency and can be suitably used, especially in refining furnaces such as copper refining furnaces, which have small windows for scraping out suspended matter.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a self-propelled slag removal device according to the present invention. FIG. 2 is a perspective view of the self-propelled slag removing device according to the present invention similar to FIG. 1, but with the upper rotating means rotated by 90 degrees. FIG. 3 is a front view of the self-propelled slag removal device according to the present invention. FIG. 4 is a longitudinal cross-sectional view taken in the axial direction of the slag removal means. FIG. 5 is a horizontal sectional view taken in the axial direction of the slag removal means. FIG. 6 is a cross-sectional view of the carrier guide and carrier taken along the general line VI--VI of FIG. 4, with the carrier partially showing support rollers and hydraulic cylinders. FIG. 7 is a plan view of the carrier. FIG. 8 is a longitudinal sectional view of the carrier. FIG. 9 is a sectional view taken along line IX--IX in FIG. 2. FIG. 1θ is a sectional view taken along line XX in FIG. 4. FIG. 11 is a longitudinal cross-sectional view of the carrier, the YK scraping arm, and the scraping member. FIG. 12 is a plan view of the scraping arm and scraping member. FIG. 13 is a front view of a conventional slag removal device. 1: Self-propelled sludge removal device 2 2 Carts 4: Track ring 6: Self-propelled means 8: Upper swing means lO: sludge removal means 20: Carrier guide 22: Carrier 24.26': Rail 32: Support roller 52. 54: Sprocket wheel 56: Chain 80: Scraping member 82: Scraping arm 96: Hydraulic cylinder 200: Refining furnace sheath 3 Figure 13 30U 3sl

Claims (1)

[Scope of Claims] 1) A self-propelled means equipped with a track ring, an upper rotating means rotatably attached to the self-propelled means, and a sludge removal means attached to the upper rotating means. , the sludge removing means includes a hollow scraping arm having a scraping member at its tip for scraping out floating matter in the refining furnace, a carrier that swingably supports the other end of the scraping arm, and the scraping arm. a slender carrier guide comprising a drive means for swinging the carrier, a rail that engages with a support roller provided on the carrier and supports the carrier so as to be movable along the longitudinal direction of the scraping arm; carrier drive chain means having a sprocket wheel provided at both ends of the guide and a chain stretched between the two sprocket wheels and connected to the carrier; acting on the sprocket wheel to drive the carrier drive chain means; and a drive means for reciprocating the carrier along the axis of the carrier guide. 2) The carrier guide has an inverted U-shape in cross section, and upper and lower rails are provided spaced apart from each other on both inner sides of the carrier guide, and support rollers are provided on each side of the carrier. Two Vs are placed on the top and bottom of the
2. The device according to claim 1, wherein the roller has a groove, and the V-groove of the carrier support roller is engaged with an upper rail and a lower rail provided on the carrier guide so as to fit therein. 3) A patent claim in which the scraping arm is formed of a three-stage hollow shaft consisting of a large diameter portion, a medium diameter portion, and a small diameter portion such that the diameter decreases sequentially toward the tip where the scraping member is attached. The device according to item 1 or 2 of the scope. 4) The device according to any one of claims 1 to 3, wherein cooling air is supplied to the inside of the scraping arm.