KR950005288Y1 - Cutting device of refractory - Google Patents

Abstract

No content.

Description

Hot Repair Refractory Cutting Machine

1 is an external perspective view showing the cutting device of the present invention as a whole.

2 is a detailed view of a bearing member provided in the cutting device of the present invention.

3 is an operating state diagram showing a state in which the cutting device of the present invention cut the hot maintenance refractory.

4 is an explanatory diagram showing a state in which hot repair refractory is cut to repair the blow lance of the hot water preliminary processing equipment according to the prior art.

5 is a configuration diagram of a general molten iron preliminary treatment equipment.

* Explanation of symbols for main parts of the drawings

3: driving cart 5, 5 ': support stand

8, 8 ': weight 9: weight weight hanger

10, 10 ': bearing member 15: cutting hanger

17, 17 ': cutting edge 18: handle

20: connecting plate 21: bolt member

100: charter preparation processing equipment 102: lance

107: refractory

The present invention relates to a cutting device for hot repair refractory used in the lance for blowing the subsidiary materials into the molten iron of the crossroad car in the molten iron preliminary treatment equipment, more specifically, the refractory of the blow lance is dropped or cracking occurs The present invention relates to a hot repair refractory cutting device, which can easily carry out refractory repair work of a blown lance by cutting the hot repair refractory material more easily.

In general, the molten iron preliminary processing equipment 100, the molten iron in the process of the main raw material blowing lance 102 mounted on the trolley 101 is deposited in the molten iron 103 to blow the sub-material 104 as shown in FIG. As a result of the extreme reaction of the excess raw materials, the refractory material installed on the outside of the lance is removed or cracks are generated. If such a phenomenon occurs, the melt penetrates into the subsidiary material injection lance forbidden melt and puncture phenomenon of the gold occurs and the secondary raw material is not blown at the correct position in the molten iron is a problem in the reaction efficiency and the injection lance 102 Must be replaced. Therefore, when the refractory 107 is dropped out of the blowing lance prohibited 105, the refractory dropping portion and the crack (Chack) portion must be used after reinforcing using the hot repair refractory.

In the prior art, the refractory material 107 constructed outside the lance gold material 105 is dropped 108 or cracks 109 in the process of injecting the sub-material by depositing the sub-material injection lance 102 in the crossroad vehicle. If a condition occurs, perform the hot repair work with the fourth degree.

In this hot repair operation, the hot repair refractory 107 is loaded in a box and delivered, sealed in a plastic bag and stored on site. The hot repair refractory material 107 is a semi-solid refractory material (plastic material) and is cut with a shovel 110 during hot repair work to perform a lance repair work.

However, during such a lance repair process, the hot repair refractory 107 has to be cut to an appropriate size by using the shovel 110, which increases the worker's fatigue, and does not cut a proper size, thereby making a large amount of refractory ( 107) was lost, especially in the case of being cut to an excessive size, an accident occurs in which the protruding portion 107a rubs against adjacent equipment during the up and down operation of the blown lance 102.

The present invention was devised to solve the above-mentioned conventional problems, and it is possible to reduce the maintenance work load of the operator by performing the refractory cutting operation accurately in a short time, and to repair the blown lance by obtaining the hot maintenance refractory of uniform and appropriate size. The purpose is to provide a hot repair refractory cutting device that makes the job easier.

In order to achieve the above object, the present invention is fixed to a pair of supports on the upper surface of the running cart equipped with a plurality of running wheels on the lower surface, each bearing member is mounted on the upper end of the support rod is a circular rod shape therebetween The rotating shaft of the insertion shaft is formed, the cutting edge hanger extends to the front of the rotating shaft is formed, the weight hanger extends to the rear is formed, a pair of semi-circular cutting edge is adjustable in the width direction at the tip end of the cutting blade hanger Mounted on the front end of the weight hanger; While the lower pair of weights are fixed, a support plate on which the hot repair refractory is loaded is provided at the lower portion of the cutting edge, and a plurality of cutting grooves are formed on the support plate, and the lower portion of the weight weight cushions the upper surface of the traveling cart. By providing a hot repair refractory cutting device of the spring-loaded structure.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

In the present invention, the maintenance-refractory cutting device 1 is equipped with driving wheels 3a at the lower square corners of the traveling trolley 3, and a pair of supports 5 and 5 'are fixed at the center thereof on the upper surface thereof. Uprights are fixed while keeping the distance from each other.

In addition, bearing members 10 and 10 'are mounted on upper portions of the supports 5 and 5', and the bearing members 10 and 10 'are upper and lower housing members 13 and 13, respectively. ') Is settled in the inner space which is connected by the hinge 13a to be formed, between which the rotating shaft 14 of the circular rod shape is inserted to be rotatable. The upper and lower housing members 13 and 13 'are coupled to each other by the through-bolt 19 at opposite sides of the hinge 13a, and screwed into the center of the upper housing member 13 to enter the inside. As much as possible high information bolts 12 are mounted so that their lower ends push the upper ends of the bearing members 10 'and 10, respectively, downwardly, so that the bearing members 10 and 10 in the upper and lower housing members 13 and 13'. ') Is fixed to prevent each rotation. In addition, one end of the cutting blade rack 15 is connected between the central portion of the rotating shaft 14, that is, the bearing members 10 and 10 ′, and the weight rack 9 is coupled to the opposite side, and the cutting blade Hook 15 is connected to the connecting rod 16 to the length adjustable by the pin 20 in the middle portion, the plurality of semi-circular cutting blades 17, 17 'is mounted on the end of the connecting rod 16. . In addition, the handle 18 is protruded upwardly installed on the upper surface of the connecting rod 16, and the cutting blades 17, 17 'are bolt members 21 mounted transversely to the distal end of the connecting rod 16. It is fixed by a pair of nut members 22a and 22b on each side, and is configured to be able to adjust the length (interval) in the width direction along the bolt member 21. In addition, the weight rack (9) consisting of a pair of rod members extending to the opposite side of the cutting edge rack (15) is fixed to the front and bottom pair weights (8, 8 ') integrally fixed to the tip, Immediately below the weights 8 and 8 ', the shock absorbing spring 6 is mounted on the upper surface of the traveling cart 3 to support it. In addition, a support plate 7 on which the hot repair refractory material 107 is mounted on an upper surface thereof is provided below the cutting edges 17 and 17 ′, and the support plate 7 is curved in a concave portion downward. The bent portion 7a is formed, and a plurality of cutting grooves 7b are formed on the upper surface thereof along the longitudinal direction of the cutting edges 17 and 17 ', while one side edge of the support plate 7 is supported by a support ( 5) It is integrally fixed to the front side of (5 ').

According to the present invention configured as described above, the hot repair refractory material 107 to be used for the repair work of the blown lance 102 is placed in the bent portion 7a of the support plate 7 as shown in FIG. , When the operator pulls the handle 18 connected to the cutting blade rack 15 forward and downward, the connecting rod 16 is pivoted downward about the pin 20 so that the cutting blades 17 and 17 'are rotated. 14, while rotating clockwise (Clock-wise) around the cutting groove (7b) proceeds to cut the hot repair refractory 107 to a predetermined size. On the other hand, as opposed to the cutting edges 17 and 17 ', the weights 8 and 8' located at the rear are raised while being lifted by the pressing force of the operator. At this time, the rotating shaft 14 is rotated without any resistance because both ends are fitted on the bearing members 10, 10 ', and when the hot repair refractory 107 is cut to a predetermined size, the worker handles By releasing (18), the cutting edges 17 and 17 'are lifted by the weights 8 and 8' as opposed to the above and returned to the original state. At this time, the lower end of the weight (8 ′) impacts the shock absorbing spring (6), but it is immediately absorbed by the elastic force has no effect on the running cart (3) and other peripherals. On the other hand, if you want to adjust the longitudinal position of the cutting edge (17, 17 '), take off the pin (16) to the cutting blade rack 15 and the connecting table 16, the connecting table 16 By moving the through hole 16a provided in the position and recombining the pin 20, the length of the cutting edges 17 and 17 'from the rotating shaft 14 is adjustable. In addition, since the widthwise spacing of the cutting edges 17 and 17 'is easily adjusted by the positional movement by the nut members 22a and 22b on the bolt member 21, the operator can remove the refractory material 107 of a desired size. It can be easily cut.

According to the present invention as described above, since the hot repair refractory 107 can be easily cut and processed to an appropriate size, the maintenance work of the operator is made very easy. Since the refractory surface of the refractory 107 is uniformly and smoothly formed, when the refractory adheres to the blown lance 102, the mounting state thereof is satisfactorily formed to improve the external refractory quality of the blown lance. The practical effect is to minimize the loss of the refractory 107 used.

Claims (1)

A pair of supports 5, 5 'are erected and fixed on an upper surface of the travel cart 3 on which the plurality of travel wheels 3a are mounted on the lower surface, and the support 5, 5' of Bearing members 10 and 10 ′ are respectively mounted at upper ends thereof, and a circular rod-shaped rotary shaft 14 is rotatably inserted therebetween, and the cutting edge holder 15 is extended in front of the rotary shaft 14. A pair of semi-circular cutting edges 17 and 17 'is mounted at the tip of the cutting edge holder 15, and the hot repair refractory 107 is loaded below the cutting edges 17 and 17'. The support plate 7 is provided, and the support plate 7 is formed with a plurality of cutting grooves 7b, so that the hot repair refractory material 107 used in the lance 102 for the sub-material injection in the molten iron preliminary processing equipment 100 is provided. In the cutting device, the pair of semi-circular cutting edges (17) and (17 ') can be adjusted in the width direction by the bolt member (21) and the nut member (22a) (22b). The weight hanger 9 is extended to the rear of the rotary shaft 14, and the upper and lower pairs of weights 8 and 8 'are fixed to the distal end of the weight hanger 9; On the other hand, hot repair refractory cutting device, characterized in that the buffer spring 6 is mounted to the lower portion of the weight (8 ').