Submerged arc furnace lining sintering crack prevention device

Abstract

The utility model discloses a submerged arc furnace lining sintering anti-cracking device which comprises a furnace body, a furnace building mold is arranged in the furnace body, a furnace lining is arranged between the furnace building mold and the furnace body, a furnace cover is arranged above the furnace body, a through hole is formed in the middle of the furnace cover, an L-shaped installation frame is arranged above the furnace cover, and a through hole is formed in the middle of the through hole. A mounting cavity is formed in the L-shaped mounting frame, a stand column is arranged above the L-shaped mounting frame, the stand column is communicated with the mounting cavity, the stand column is slidably connected with the L-shaped mounting frame, a high-temperature-resistant probe assembly is arranged at the lower end of the stand column, and the high-temperature-resistant probe assembly is connected with the stand column through a screw; according to the anti-crack device, the probe is placed in the furnace chamber, the camera is used for shooting the surface of the furnace lining, whether the furnace lining cracks or not is judged according to the shot image, the furnace lining is repaired in time, the furnace lining cracks are prevented from being further expanded, potential safety hazards are reduced, and the sintering service life of the furnace lining is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to furnace lining sintering technical field, concretely is a mineral heat furnace furnace lining sintering anti -crack device. BACKGROUND

[0002] The mineral heat furnace is also called arc furnace or resistance furnace, which is mainly used for reducing smelting of ores, carbonaceous reducing agent and solvent raw materials, and mainly produces ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, ferromanganese-silicon alloy and other ferroalloy, is important industrial raw materials in metallurgical industry and chemical raw materials such as calcium carbide, the load of the mineral heat furnace transformer is continuous and stable, the impedance voltage is low, the number of pressure regulating stages is more, and the overload capacity is strong. The furnace lining refractory material is formed by sintering, and the surface forms a sintering layer, which can be put into use, the sintering process of the furnace lining refractory material plays a very key role, and improper control of various factors in sintering can easily cause the sintering of the refractory material not to be formed, the furnace lining refractory material to crack, and longitudinal and transverse cracks of different depths to be formed on the surface of the refractory material, thereby reducing the service life of the intermediate frequency furnace.

[0003] The Chinese patent with publication number CN218627736U and authorization announcement date of March 14, 2023 discloses a kind of intermediate frequency smelting furnace furnace lining sintering anti -crack device, it is related to metal smelting processing technical field, solve the technical problem that existing furnace lining refractory material is prone to crack when sintering, the device includes the furnace body of upward opening, the furnace body is equipped with furnace building mould, furnace building mould is arranged between the furnace body and furnace lining, the outer periphery of the top of furnace body is provided with connecting ring edge, the top opening of the furnace body is provided with pressing plate, the pressing plate is fixedly connected with connecting ring edge, the connecting ring edge is provided with positioning groove, the bottom surface of the pressing plate is provided with the positioning ring matched with positioning groove;The utility model can effectively inhibit the tendency of refractory material crack, avoid longitudinal and transverse cracks of furnace lining refractory material, improve the service life of intermediate frequency furnace, reduce operating cost, and ensure the safety of intermediate frequency furnace operation process.

[0004] Existing furnace lining sintering will appear loss in use process, cannot detect and repair the crack of furnace lining, surface crack expands after using a period of time, high-temperature melt enters crack, high-temperature melt destroys intermediate frequency furnace coil copper pipe, contacts with cooling water in coil copper pipe, produces explosion, there is security risk, reduces the service life of furnace lining sintering, can not satisfy the use demand. UTILITY MODEL CONTENTS

[0005] The utility model discloses a purpose lies in providing a kind of mineral heat furnace lining sintering anti-crack device, to solve the wear of existing furnace lining sintering in the above background technology during use will appear, cannot detect and repair the crack of furnace lining, surface crack enlarges after using a period, high-temperature melt enters crack, high-temperature melt destroys the copper pipe of medium-frequency furnace coil, contact with cooling water in coil copper pipe, produce explosion, there is security risk, reduce furnace lining sintering service life, cannot satisfy the use demand problem.

[0006] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of mineral heat furnace lining sintering anti-crack device, including furnace body, the inside of the furnace body is provided with furnace building mould, furnace building mould is provided with furnace lining between the furnace body, the top of the furnace body is provided with furnace cover, and the top of furnace cover and furnace lining is attached, the middle part of the furnace cover is provided with through-hole, and through-hole is correspondingly provided with furnace building mould, the top of the furnace cover is provided with L type mounting bracket, installation cavity is provided on the L type mounting bracket, the top of the L type mounting bracket is provided with stand, and stand is through with installation cavity Setting, the stand is slidably connected with L type mounting bracket, the lower end of the stand is provided with high-temperature probe assembly, and high-temperature probe assembly is connected with stand by screw.

[0007] Preferably, the outer wall of the upper end of the furnace body is provided with a connecting hole, the connecting hole is provided with at least four, the outer part of the furnace cover is provided with a connecting bolt, and the connecting bolt is correspondingly provided with the connecting hole, the connecting bolt is through with the furnace cover, and the connecting bolt is threadedly connected with the furnace body.

[0008] Preferably, the upper end of the furnace body is provided with a positioning groove, the top of the furnace cover is provided with a positioning ring, and the positioning ring is fixedly connected with the furnace cover, the positioning ring is correspondingly provided with the positioning groove, and the positioning ring is inserted with the furnace body.

[0009] Preferably, the inside of the furnace building mould is provided with a temperature measuring thermistor assembly, the temperature measuring thermistor assembly is provided with two, and the two temperature measuring thermistor assemblies are provided on the two sides inside the furnace building mould.

[0010] Preferably, the side wall of the stand is provided with a gear rack groove, the inside of the installation cavity is provided with a gear, and the gear is rotatably connected with the L type mounting bracket, the gear is provided on one side of the gear rack groove, and the gear is meshingly connected with the gear rack groove, one side of the L type mounting bracket is provided with a motor, and the motor is connected with the L type mounting bracket by screw, the output end of the motor is connected with one end of the gear.

[0011] Preferably, the upper end of the stand is provided with a connecting groove, the lower end of the stand is provided with a connecting block, and the connecting block is integrally provided with the stand, the connecting block is correspondingly provided with the connecting groove, the connecting block is provided with a limiting hole, the stand is provided with an assembly hole, the inside of the assembly hole is provided with a limiting bolt, and the limiting bolt is correspondingly provided with the limiting hole.

[0012] Preferably, a rotating member is arranged between the L-shaped mounting bracket and the furnace cover, and the L-shaped mounting bracket is rotatably connected to the furnace cover through the rotating member.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The utility model discloses a device through the setting of furnace body, furnace cover and furnace building mould, the inside wall and the upper end of furnace lining are limited by furnace body, furnace cover and furnace building mould, when the furnace lining expands to all directions under the heat, the expansion is prevented by the blocking effect of furnace body, furnace cover and furnace building mould, the longitudinal and transverse cracks of furnace lining are avoided.

[0015] 2. The utility model discloses a device through the setting of L-shaped mounting bracket, stand, motor, gear, gear row slot and rotating member, the high-temperature-resistant probe assembly is put into the electric arc furnace, the inside wall of furnace lining is shot by the high-temperature-resistant probe assembly, whether longitudinal and transverse cracks of furnace lining are judged according to the shooting image, the motor drives the rotation of the gear, the gear is driven to rotate with the stand through the gear row slot transmission connection, along with the rotation of the gear drives the stand to go up and down, changes the height of high-temperature-resistant probe assembly, can detect the different height of furnace lining, the L-shaped mounting bracket is rotatably connected with the furnace cover through the rotating member, when not detecting, rotates the L-shaped mounting bracket, does not affect the normal use of electric arc furnace.

[0016] 3. The utility model discloses a device through the setting of connecting groove, connecting block, limiting hole and limiting bolt, connecting block is inserted into the alignment connecting groove, connects two stands, changes the length of stand, the limiting bolt is rotated into the limiting hole, and the connected stand is limited, satisfies the detection demand of electric arc furnace of different depth. DRAWINGS

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2 It is the sectional view of the utility model;

[0019] Figure 3 It is the A area local enlarged view of the utility model; Figure 2

[0020] Figure 4 It is the furnace cover structure diagram of the utility model.

[0021] ​In the figure: 1, furnace body; 2, furnace cover; 3, connecting bolt; 4, L-shaped mounting bracket; 5, stand; 6, temperature measuring thermistor assembly; 7, furnace building mold; 8, high-temperature probe assembly; 9, motor; 10, furnace lining; 11, mounting cavity; 12, gear; 13, gear row groove; 14, connecting groove; 15, connecting block; 16, limiting hole; 17, limiting bolt; 18, positioning groove; 19, positioning ring; 20, connecting hole; 21, rotating part; 22, through hole; 23, assembly hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] Please refer to Figures 1-4 The utility model provides an embodiment: a mineral furnace furnace lining sintering anti -crack device, furnace body 1 is provided with furnace building mold 7 in the inside, furnace building mold 7 is provided with furnace lining 10 between furnace body 1, the upper portion of furnace body 1 is provided with furnace cover 2, and the upper end of furnace lining 10 is attached with furnace cover 2, the middle part of furnace cover 2 is provided with through hole 22, and through hole 22 is correspondingly arranged with furnace building mold 7, the upper portion of furnace cover 2 is provided with L-shaped mounting bracket 4, and L-shaped mounting bracket 4 is provided with mounting cavity 11, the upper portion of L-shaped mounting bracket 4 is provided with stand 5, and stand 5 is through with mounting cavity 11 Setting, stand 5 and L-shaped mounting bracket 4 are connected with sliding, the lower end of stand 5 is provided with high-temperature probe assembly 8, and high-temperature probe assembly 8 is connected with stand 5 through screw, and rotating part 21 is arranged between L-shaped mounting bracket 4 and furnace cover 2, and L-shaped mounting bracket 4 and furnace cover 2 are connected through rotating part 21, and furnace building mold 7 is provided with temperature measuring thermistor assembly 6 in the inside, temperature measuring thermistor assembly 6 is provided with two, and two temperature measuring thermistor assemblies 6 are arranged on both sides in the inside of furnace building mold 7.

[0024] When using: furnace body 1, furnace cover 2 and furnace building mold 7 limit the inside and outside wall and upper end of furnace lining 10, when furnace lining 10 expands to all directions, is blocked by furnace body 1, furnace cover 2 and furnace building mold 7, prevents its expansion, can effectively inhibit the crack tendency of furnace lining 10, avoids longitudinal and transverse cracks of furnace lining 10, when mineral furnace is not used, high-temperature probe assembly 8 is placed in mineral furnace, high-temperature probe assembly 8 is photographed to the inside wall of furnace lining 10, whether longitudinal and transverse cracks of furnace lining 10 are generated according to the image, is convenient for timely maintenance replacement, L-shaped mounting bracket 4 and furnace cover 2 are connected through rotating part 21, when not detecting, rotate L-shaped mounting bracket 4, do not affect the normal use of mineral furnace, two temperature measuring thermistor assemblies 6 are installed in different positions, can measure temperature from different parts, is convenient for measuring sintering temperature, makes sintering temperature control more accurate.

[0025] Please refer to Figure 1 , Figure 2 and Figure 3 , the outer wall of the upper end of the furnace body 1 is provided with connecting holes 20, and the connecting holes 20 are provided with at least four connecting holes 20, the outer part of the furnace cover 2 is provided with connecting bolts 3, and the connecting bolts 3 are correspondingly arranged with the connecting holes 20, the connecting bolts 3 are throughly arranged with the furnace cover 2, and the connecting bolts 3 are threadedly connected with the furnace body 1, the upper end of the furnace body 1 is provided with a positioning groove 18, the top of the furnace cover 2 is provided with a positioning ring 19, and the positioning ring 19 is fixedly connected with the furnace cover 2, the positioning ring 19 is correspondingly arranged with the positioning groove 18, and the positioning ring 19 is inserted with the furnace body 1, the connecting bolts 3 are screwed into the connecting holes 20, and the installed furnace cover 2 is limited, preventing the furnace lining 10 from expanding upward and opening the furnace cover 2, the positioning ring 19 is inserted into the positioning groove 18, and the connected furnace cover 2 is positioned, ensuring the connection accuracy of the furnace cover 2 and the furnace body 1.

[0026] Please refer to Figure 1 and Figure 2 , the side wall of the column 5 is provided with a gear slot 13, the inside of the mounting cavity 11 is provided with a gear 12, and the gear 12 is rotatably connected with the L-shaped mounting frame 4, the gear 12 is arranged on one side of the gear slot 13, and the gear 12 is meshingly connected with the gear slot 13, one side of the L-shaped mounting frame 4 is provided with a motor 9, and the motor 9 is connected with the L-shaped mounting frame 4 through screws, the output end of the motor 9 is connected with one end of the gear 12, the upper end of the column 5 is provided with a connecting groove 14, the lower end of the column 5 is provided with a connecting block 15, and the connecting block 15 is integrally arranged with the column 5, the connecting block 15 is correspondingly arranged with the connecting groove 14, the connecting block 15 is provided with a limiting hole 16, the column 5 is provided with an assembly hole 23, the inside of the assembly hole 23 is provided with a limiting bolt 17, and the limiting bolt 17 is correspondingly arranged with the limiting hole 16, the motor 9 drives the gear 12 to rotate, the gear 12 and the column 5 are drivingly connected through the gear slot 13, the column 5 is lifted with the rotation of the gear 12, the height of the high-temperature-resistant probe assembly 8 is changed, the different heights of the furnace lining 10 can be detected, the connecting block 15 is inserted into the connecting groove 14 to connect the two columns 5, the length of the column 5 is changed, the limiting bolt 17 is screwed into the limiting hole 16 to limit the connected column 5, and the detection requirements of the submerged arc furnace of different depths are met.

[0027] Working principle: the furnace body 1, the furnace cover 2 and the furnace building mold 7 limit the inner wall and the upper end of the furnace lining 10, when the furnace lining 10 expands to all directions, the blocking effect of the furnace body 1, the furnace cover 2 and the furnace building mold 7 prevents its expansion, which can effectively inhibit the crack tendency of the furnace lining 10 and avoid the longitudinal and transverse cracks of the furnace lining 10, when the electric furnace is not used, the motor 9 drives the gear 12 to rotate, the gear 12 and the column 5 are connected through the gear slot 13, the column 5 is lifted with the rotation of the gear 12, the height of the high-temperature-resistant probe assembly 8 is changed, the high-temperature-resistant probe assembly 8 is put into the electric furnace, the inner wall of the furnace lining 10 is shot by the high-temperature-resistant probe assembly 8, whether the longitudinal and transverse cracks of the furnace lining 10 are generated is judged according to the shooting image, the timely repair and replacement are facilitated, the L-shaped mounting bracket 4 and the furnace cover 2 are connected through the rotating part 21, the L-shaped mounting bracket 4 is rotated when not detecting, the normal use of the electric furnace is not affected, the two temperature measuring resistance components 6 are installed at different positions, the temperature can be measured from different parts, the sintering temperature is measured, and the sintering temperature is more accurate; the connecting block 15 is inserted into the connecting groove 14, the two columns 5 are connected, the length of the column 5 is changed, the limiting bolt 17 is screwed into the limiting hole 16, the connected column 5 is limited, and the detection requirements of the electric furnace with different depths are met.

[0028] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for preventing cracks in sintering of a lining of a submerged arc furnace, comprising a furnace body (1), characterized in that: A furnace mold (7) is provided inside the furnace body (1), a furnace lining (10) is provided between the furnace mold (7) and the furnace body (1), a furnace cover (2) is provided above the furnace body (1), and the furnace cover (2) is fitted with the upper end of the furnace lining (10), a through hole (22) is provided in the middle portion of the furnace cover (2), and the through hole (22) is provided corresponding to the furnace mold (7), an L-shaped mounting frame (4) is provided above the furnace cover (2), a mounting cavity (11) is provided on the L-shaped mounting frame (4), a column (5) is provided above the L-shaped mounting frame (4), and the column (5) and the mounting cavity (11) are connected, the column (5) and the L-shaped mounting frame (4) are slidably connected, a high-temperature resistant probe assembly (8) is provided at the lower end of the column (5), and the high-temperature resistant probe assembly (8) and the column (5) are connected by screws.

2. The device for preventing cracks in sintering of a lining of a submerged arc furnace according to claim 1, characterized in that: The outer wall of the upper end of the furnace body (1) is provided with connecting holes (20), and at least four connecting holes (20) are provided. The outside of the furnace cover (2) is provided with a connecting bolt (3), and the connecting bolt (3) is provided corresponding to the connecting hole (20). The connecting bolt (3) and the furnace cover (2) are connected, and the connecting bolt (3) is threadedly connected to the furnace body (1).

3. The device for preventing cracks in sintering of a lining of a submerged arc furnace according to claim 1, characterized in that: A positioning groove (18) is provided at the upper end of the furnace body (1), a positioning ring (19) is provided at the top of the furnace cover (2), and the positioning ring (19) is fixedly connected to the furnace cover (2), the positioning ring (19) and the positioning groove (18) are arranged correspondingly, and the positioning ring (19) is plugged into the furnace body (1).

4. The device for preventing cracks in sintering of a lining of a submerged arc furnace according to claim 1, characterized in that: A temperature measuring thermal resistor assembly (6) is provided inside the furnace building mold (7), and two temperature measuring thermal resistor assemblies (6) are provided, and the two temperature measuring thermal resistor assemblies (6) are provided on both sides inside the furnace building mold (7).

5. The device for preventing cracks during sintering of a lining of a submerged arc furnace according to claim 1, characterized in that: A tooth row groove (13) is provided on the side wall of the column (5), a gear (12) is provided inside the mounting cavity (11), and the gear (12) is rotatably connected to the L-shaped mounting frame (4), the gear (12) is provided on one side of the tooth row groove (13), and the gear (12) is meshed with the tooth row groove (13), a motor (9) is provided on one side of the L-shaped mounting frame (4), and the motor (9) is connected to the L-shaped mounting frame (4) by screws, and the output end of the motor (9) is connected to one end of the gear (12).

6. The device for preventing cracks in sintering of a lining of a submerged arc furnace according to claim 1, characterized in that: The upper end of the column (5) is provided with a connecting groove (14), the lower end of the column (5) is provided with a connecting block (15), and the connecting block (15) and the column (5) are provided as a whole, the connecting block (15) and the connecting groove (14) are provided correspondingly, a limiting hole (16) is provided on the connecting block (15), an assembly hole (23) is provided on the column (5), a limiting bolt (17) is provided inside the assembly hole (23), and the limiting bolt (17) and the limiting hole (16) are provided correspondingly.

7. The device for preventing cracks in sintering of a lining of a submerged arc furnace according to claim 1, characterized in that: A rotating member (21) is provided between the L-shaped mounting frame (4) and the furnace cover (2), and the L-shaped mounting frame (4) and the furnace cover (2) are rotatably connected via the rotating member (21).

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