Simple device for preventing deviation of furnace cover of heating and heat preservation pit

Abstract

The utility model relates to a simple device for preventing deviation of a furnace cover of a heating insulation pit, which belongs to the technical field of metallurgy, is arranged on the insulation pit and comprises positioning key blocks including a first positioning key block and a second positioning key block. The heat preservation pit comprises a heat preservation pit furnace body, furnace covers and a furnace cover frame, the upper end of the heat preservation pit furnace body is provided with the furnace cover frame with two feeding ports, the furnace covers are arranged on the two feeding ports in a sealing mode respectively, first positioning key blocks are symmetrically and evenly distributed at the two ends of the furnace cover frame in the transverse direction respectively, and second positioning key blocks are symmetrically and evenly distributed at the two ends of the furnace cover frame in the longitudinal direction respectively. The first positioning key block and the second positioning key block are identical in structure and are both cuboid structures, one sides of the lower ends of the first positioning key block and the second positioning key block are concave inwards to form clamping grooves, and one sides of the upper ends of the first positioning key block and the second positioning key block are inclined to form slope structures. The device is simple and easy to implement, convenient to use and low in cost, deviation of the heat preservation pit furnace cover is effectively prevented, the equipment failure probability is reduced, and the equipment replacement cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of anti-deviation devices, specifically to a kind of heating heat preservation pit furnace cover anti-deviation simple device, belong to metallurgical technical field. BACKGROUND

[0002] The heat preservation pit is an important device in steel production, which mainly functions to solve the problem of too fast cooling speed of continuous casting slab, which leads to change of crystal orientation composition or temperature stress cracking, etc., seriously affecting the quality of the blank, and plays a key role in ensuring the temperature and quality of the slab.

[0003] At present, the heat preservation pit used by wide and thick plate plant has one furnace cover on each side of the pit, which is placed on the top of the pit. When operating, one of the pit covers is lifted about 800mm by a cover lifting machine and translated to the upper side of the other pit cover to realize overlapping, exposing half of the heat preservation pit area and realizing the in / out pit operation of the steel billet. The function of the transverse moving cover lifting machine is to open one of the pit covers and overlap it on the other pit cover, which opens half of the heat preservation pit and realizes the loading and unloading of the material billet while maximizing the equipment space saving. The main functions of the transverse moving cover lifting machine are lifting and walking translation, and its walking stroke covers the heat preservation pit area.

[0004] It is found that the furnace cover of the heat preservation pit is prone to deviation during use. The deviated furnace cover interferes with the lifting mechanism of the cover lifting machine above the heat preservation pit, affecting the normal operation of the heat preservation pit. If not discovered in time, the non-sealing of the furnace door and forced start may cause damage to the gear motor, wheels and auxiliary equipment of the cover lifting machine.

[0005] Due to the design structure and frame strength of the heat preservation pit, it is difficult and time-consuming to modify the synchronization of the lifting and transverse moving device of the cover lifting machine of the heat preservation pit.

[0006] The current patent CN206739893U is a guide deviation correction device for a vacuum melting furnace cover trolley, which accurately guides and corrects the moving position of the furnace cover trolley, effectively prevents the furnace cover trolley from deviating, avoids the deviation of the furnace cover position, and prevents the vacuum melting furnace from being unable to be vacuum sealed, thereby ensuring the smooth production. However, it is a new device added outside the furnace cover, and its structure is complex, the manufacturing cost is high, the cycle is long, and the use is not convenient.

[0007] Therefore, it is an urgent technical problem for the technical personnel in the field to develop a heating heat preservation pit furnace cover anti-deviation simple device that can overcome the above defects. UTILITY MODEL CONTENTS

[0008] The utility model wants to solve the technical problem, overcome prior art's shortcoming, provide a kind of heating heat preservation pit furnace cover anti-deviation simple device, the device is simple and easy to implement, convenient to use, low in cost, effectively prevent the deviation of heat preservation pit furnace cover, reduce the probability of equipment failure, reduce the cost of equipment replacement.

[0009] In order to solve the above technical problems, the utility model provides a kind of heating heat preservation pit furnace cover anti-deviation simple device, is set to heat preservation pit, including positioning key block, positioning key block includes first positioning key block and second positioning key block;

[0010] Heat preservation pit includes heat preservation pit furnace body, furnace cover and furnace cover frame, and the heat preservation pit furnace body is the hollow square structure of upper end opening, and the furnace cover frame with two charging ports is set on the upper end of heat preservation pit furnace body, and the furnace cover frame is respectively set on the two charging ports of furnace cover, and the two ends of furnace cover frame horizontal direction are respectively symmetrically distributed with a plurality of first positioning key blocks, and the two ends of furnace cover frame longitudinal direction are respectively symmetrically distributed with a plurality of second positioning key blocks;

[0011] The first positioning key block and the second positioning key block are the same structure and are cuboid structure, the first positioning key block and the second positioning key block are recessed on one side of lower end to form a clamping groove for clamping on one side of furnace cover frame, and the upper end of first positioning key block and second positioning key block is inclined to form a slope structure for limiting furnace cover;

[0012] The thickness of the first positioning key block is 8-10mm greater than the thickness of the second positioning key block.

[0013] The utility model further defined technical scheme is:

[0014] Further, in the aforementioned heating heat preservation pit furnace cover anti-deviation simple device, the distance between furnace cover edge and the edge of furnace cover frame in horizontal direction is 45-55mm.

[0015] Technical effect, the gap between furnace cover edge and the edge of furnace cover frame in horizontal direction is greater than the gap in longitudinal direction, so the thickness of the first positioning key block is greater than the thickness of the second positioning key block, to adapt to actual work, ensure the normal operation.

[0016] In the aforementioned heating heat preservation pit furnace cover anti-deviation simple device, the distance between furnace cover edge and the edge of furnace cover frame in longitudinal direction is 40-50mm.

[0017] In the aforementioned heating heat preservation pit furnace cover anti-deviation simple device, the angle of the slope of the first positioning key block and the second positioning key block is 20-30°, preferably 25°.

[0018] Technical effects, the utility model discloses be equipped with the slope on the positioning key block, and control angle is 25 DEG, and angle is too big, and it is too flat to carry out effective limit when descending furnace cover, and angle is too small, and it needs accurate alignment when placing furnace cover, and it is difficult to operate control, and the effect of limiting is not played, and control is in 25 DEG and realizes effective fast limit.

[0019] In the foregoing simple device for preventing furnace cover from deviating in heating and heat preservation pit, the depth of the inner clamping groove of the first positioning key block and the second positioning key block is two-thirds of the corresponding thickness.

[0020] Technical effects, the depth of the clamping groove is set to two-thirds of the thickness of the whole positioning key block, which is beneficial to effective clamping on the frame of the furnace cover.

[0021] In the foregoing simple device for preventing furnace cover from deviating in heating and heat preservation pit, the depth of the clamping groove of the first positioning key block is 8-10mm greater than the depth of the inner clamping groove of the second positioning key block.

[0022] Technical effects, according to the thickness itself, the furnace cover frame is clamped well.

[0023] In the foregoing simple device for preventing furnace cover from deviating in heating and heat preservation pit, the transition platform is respectively left between the corresponding inclined surface and the clamping groove on the first positioning key block and the second positioning key block.

[0024] Technical effects, if there is no transition platform between the clamping groove and the inclined surface, an angle is formed, the angle prolongs the occupied space of the positioning key block on the frame of the furnace cover, the thickness of the positioning key block is enlarged, and the angle exists, the furnace cover may be pressed when placed, resulting in not sealing and affecting normal work.

[0025] In the foregoing simple device for preventing furnace cover from deviating in heating and heat preservation pit, the top end of the first positioning key block and the second positioning key block is a plane structure.

[0026] Technical effects, the top end of the positioning key block is not an acute angle structure of an inclined surface, and the furnace cover is not scratched when moving, the furnace cover is protected, and the service life is prolonged.

[0027] The beneficial effects of the utility model are:

[0028] The positioning key block structure is adapted to the frame of the furnace cover, the clamping groove is vertically arranged on the frame of the furnace cover, and then welded and fixed, the inclined surface on the positioning key block limits the furnace cover, so that the furnace cover falls into an accurate position, deviation is effectively prevented, the furnace cover is not damaged in the whole process, the structure is simple, and the use is convenient.

[0029] The utility model discloses a first positioning key block and a second positioning key block are added to the furnace cover frame steel structure and the furnace cover junction of the heat preservation pit, and the positioning key block is attached to the furnace cover frame and does not cause interference to the uncovering machine walking, and the positioning key block does not need to transform the uncovering machine, and the separate device manufacturing modification is more convenient, and its structure is simple, and the cost is low, and the use is convenient.

[0030] The utility model discloses a first positioning key block and a second positioning key block are added to the furnace cover frame steel structure and the furnace cover junction of the heat preservation pit, and the positioning key block is attached to the furnace cover frame and does not cause interference to the uncovering machine walking, and the positioning key block does not need to transform the uncovering machine, and the separate device manufacturing modification is more convenient, and its structure is simple, and the cost is low, and the use is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The utility model discloses a first positioning key block and a second positioning key block are added to the furnace cover frame steel structure and the furnace cover junction of the heat preservation pit, and the positioning key block is attached to the furnace cover frame and does not cause interference to the uncovering machine walking, and the positioning key block does not need to transform the uncovering machine, and the separate device manufacturing modification is more convenient, and its structure is simple, and the cost is low, and the use is convenient.

[0032] Figure 2 The utility model discloses a first positioning key block and a second positioning key block are added to the furnace cover frame steel structure and the furnace cover junction of the heat preservation pit, and the positioning key block is attached to the furnace cover frame and does not cause interference to the uncovering machine walking, and the positioning key block does not need to transform the uncovering machine, and the separate device manufacturing modification is more convenient, and its structure is simple, and the cost is low, and the use is convenient. Figure 1 The utility model discloses a first positioning key block and a second positioning key block are added to the furnace cover frame steel structure and the furnace cover junction of the heat preservation pit, and the positioning key block is attached to the furnace cover frame and does not cause interference to the uncovering machine walking, and the positioning key block does not need to transform the uncovering machine, and the separate device manufacturing modification is more convenient, and its structure is simple, and the cost is low, and the use is convenient.

[0033] Figure 3 The utility model discloses a first positioning key block and a second positioning key block are added to the furnace cover frame steel structure and the furnace cover junction of the heat preservation pit, and the positioning key block is attached to the furnace cover frame and does not cause interference to the uncovering machine walking, and the positioning key block does not need to transform the uncovering machine, and the separate device manufacturing modification is more convenient, and its structure is simple, and the cost is low, and the use is convenient.

[0034] Figure 4 The utility model discloses a first positioning key block and a second positioning key block are added to the furnace cover frame steel structure and the furnace cover junction of the heat preservation pit, and the positioning key block is attached to the furnace cover frame and does not cause interference to the uncovering machine walking, and the positioning key block does not need to transform the uncovering machine, and the separate device manufacturing modification is more convenient, and its structure is simple, and the cost is low, and the use is convenient. Figure 3 The utility model discloses a first positioning key block and a second positioning key block are added to the furnace cover frame steel structure and the furnace cover junction of the heat preservation pit, and the positioning key block is attached to the furnace cover frame and does not cause interference to the uncovering machine walking, and the positioning key block does not need to transform the uncovering machine, and the separate device manufacturing modification is more convenient, and its structure is simple, and the cost is low, and the use is convenient.

[0035] Figure 5 The utility model discloses a first positioning key block and a second positioning key block are added to the furnace cover frame steel structure and the furnace cover junction of the heat preservation pit, and the positioning key block is attached to the furnace cover frame and does not cause interference to the uncovering machine walking, and the positioning key block does not need to transform the uncovering machine, and the separate device manufacturing modification is more convenient, and its structure is simple, and the cost is low, and the use is convenient.

[0036] Figure 6 The utility model discloses a first positioning key block and a second positioning key block are added to the furnace cover frame steel structure and the furnace cover junction of the heat preservation pit, and the positioning key block is attached to the furnace cover frame and does not cause interference to the uncovering machine walking, and the positioning key block does not need to transform the uncovering machine, and the separate device manufacturing modification is more convenient, and its structure is simple, and the cost is low, and the use is convenient. Figure 5 The utility model discloses a first positioning key block and a second positioning key block are added to the furnace cover frame steel structure and the furnace cover junction of the heat preservation pit, and the positioning key block is attached to the furnace cover frame and does not cause interference to the uncovering machine walking, and the positioning key block does not need to transform the uncovering machine, and the separate device manufacturing modification is more convenient, and its structure is simple, and the cost is low, and the use is convenient.

[0037] In the drawing: 1-first positioning key block, 2-second positioning key block, 3-heat preservation pit furnace body, 4-furnace cover, 5-furnace cover frame, 6-slot, 7-inclined plane, 8-transition platform. DETAILED DESCRIPTION

[0038] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments; as long as the technical features involved in the various embodiments of the present application do not conflict with each other, they can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Embodiment 1

[0039] The heating and heat preservation pit furnace cover anti-deviation simple device provided in the embodiment is arranged on the heat preservation pit, and comprises a positioning key block, the positioning key block comprises a first positioning key block 1 and a second positioning key block 2.

[0040] Referring to Figures 5-6 , the heat preservation pit comprises a heat preservation pit furnace body 3, a furnace cover 4 and a furnace cover frame 5, the heat preservation pit furnace body 3 is a hollow square structure with an open upper end, the furnace cover frame 5 with two charging ports is arranged at the upper end of the heat preservation pit furnace body 3, the furnace cover 4 is respectively arranged on the two charging ports of the furnace cover frame 5, the distance between the edge of the furnace cover 4 and the edge of the furnace cover frame 5 in the transverse direction is 45-55 mm, a plurality of first positioning key blocks 1 are symmetrically and uniformly arranged at the two ends of the furnace cover frame 5 in the transverse direction, the distance between the edge of the furnace cover 4 and the edge of the furnace cover frame 5 in the longitudinal direction is 40-50 mm, and a plurality of second positioning key blocks 2 are symmetrically and uniformly arranged at the two ends of the furnace cover frame 5 in the longitudinal direction.

[0041] Referring to Figures 1-4 , the first positioning key block 2 is a cuboid structure, the length is 195 mm, the width is 100 mm, and the thickness is 65 mm, the second positioning key block 1 is a cuboid structure, the length is 195 mm, the width is 100 mm, and the thickness is 55 mm, one side of the lower end of the first positioning key block 1 and the second positioning key block 2 is recessed to form a clamping groove 6 for clamping one side of the furnace cover frame 5, one side of the upper end of the first positioning key block 1 and the second positioning key block 2 is inclined to form a slope 7 structure for limiting the furnace cover, and the angle of the slope 7 of the first positioning key block 1 and the second positioning key block 2 is 25°.

[0042] Referring to Figures 1-4 , a transition platform 8 is respectively left between the corresponding slope 7 and the clamping groove 6 of the first positioning key block 1 and the second positioning key block 2, the transition platform 8 is flush with the bottom end of the slope 7, and the top end of the first positioning key block 1 and the second positioning key block 2 is a plane structure.

[0043] In the embodiment, the depth of the clamping groove 6 in the first positioning key block 1 and the second positioning key block 2 is two-thirds of the corresponding thickness, and the depth of the clamping groove 6 in the first positioning key block 1 is greater than the depth of the clamping groove 6 in the second positioning key block 2 by 10 mm.

[0044] Since the positioning key block is added to the furnace cover of the wide and thick plate plant heat preservation pit, no equipment downtime and equipment damage caused by furnace cover deviation have occurred so far.

[0045] 1. Designing heat preservation pit drawing, checking heat preservation pit furnace body and cover lifting machine spacing size, measuring and drawing, processing accessories;

[0046] 2. Coordinating downtime, welding positioning key block at the junction of the furnace cover frame steel structure and the furnace cover of the heat preservation pit furnace body.

[0047] The utility model mainly reduces the equipment failure downtime caused by the deviation of the furnace cover of the heating heat preservation pit, reduces the cost of spare parts replacement, and meets the production demand.

[0048] The utility model mainly applies to the simple and rapid solution for preventing the deviation of the cover lifting type heating heat preservation pit furnace cover, and aims at correcting the deviation of the slab heating heat preservation pit furnace cover, reducing the production downtime and possible equipment damage.

[0049] The predicted annual economic benefit can be about 70,000 yuan:

[0050] 1. The economic cost of manpower maintenance adjustment is about 21,600 yuan.

[0051] 2. Because of the unsealed furnace door and forced start, the damage of the gear motor, wheels and auxiliary equipment of the cover lifting machine may occur, and the spare part cost can be saved by about 50,000 yuan per year.

[0052] In addition to the above embodiments, the utility model can also have other implementation manners. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. A simple device for preventing deviation of the furnace cover of a heating and insulation pit, installed on the insulation pit, characterized in that: The positioning key block comprises a first positioning key block (1) and a second positioning key block (2). The heat preservation pit comprises a heat preservation pit furnace body (3), a furnace cover (4) and a furnace cover frame (5). The heat preservation pit furnace body (3) is a hollow square structure with an open upper end. The furnace cover frame (5) is provided on the upper end of the heat preservation pit furnace body (3) and has two charging openings. The furnace cover (4) is respectively arranged on the two charging openings of the furnace cover frame (5). A plurality of first positioning key blocks (1) are symmetrically and uniformly arranged at the two ends of the furnace cover frame (5) in the transverse direction. A plurality of second positioning key blocks (2) are symmetrically and uniformly arranged at the two ends of the furnace cover frame (5) in the longitudinal direction. The first positioning key block (1) and the second positioning key block (2) have the same structure and are both cuboid structures. One side of the lower end of the first positioning key block (1) and the second positioning key block (2) is recessed to form a clamping groove (6) for clamping one side of the furnace cover frame (5). One side of the upper end of the first positioning key block (1) and the second positioning key block (2) is inclined to form a slope (7) structure for limiting the furnace cover. The thickness of the first positioning key block (1) is 8-10mm greater than that of the second positioning key block (2).

2. The simple device for preventing deviation of the furnace cover of the heating pit according to claim 1, characterized in that: The distance between the edge of the furnace cover (4) and the edge of the furnace cover frame (5) in the transverse direction is 45-55mm.

3. The simple device for preventing the deviation of the furnace cover of the heating pit according to claim 1, characterized in that: The distance between the edge of the furnace cover (4) and the edge of the furnace cover frame (5) in the longitudinal direction is 40-50mm.

4. The simple device for preventing deviation of a furnace cover of a heating pit according to claim 1, characterized in that: The angle of the slope (7) of the first positioning key block (1) and the second positioning key block (2) is 20-30°.

5. The simple device for preventing the deviation of the furnace cover of the heating pit according to claim 1, characterized in that: The depth of the clamping groove (6) of the first positioning key block (1) and the second positioning key block (2) is two-thirds of the corresponding thickness.

6. The simple device for preventing the deviation of the furnace cover of the heating pit according to claim 1, characterized in that: The depth of the clamping groove (6) of the first positioning key block (1) is 8-10mm greater than that of the second positioning key block (2).

7. The simple device for preventing the deviation of the furnace cover of the heating pit according to claim 1, characterized in that: A transition platform (8) is respectively arranged between the corresponding slope (7) and the clamping groove (6) of the first positioning key block (1) and the second positioning key block (2).

8. The simple device for preventing the deviation of the furnace cover of the heating pit according to claim 1, characterized in that: The top end of the first positioning key block (1) and the second positioning key block (2) is a planar structure.

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