Baking furnace for submersed nozzle of tundish of continuous casting machine

Abstract

The utility model discloses a continuous casting machine tundish submersed nozzle baking furnace, which relates to the technical field of steel casting equipment, and adopts the technical scheme that the baking furnace comprises a baking furnace body and a tray, the baking furnace body is of a circular structure, an air inlet mechanism is arranged at the bottom of the baking furnace body, and the air inlet mechanism is used for introducing fuel gas and air into the baking furnace body; the tray is of a circular structure and is arranged in the baking oven body, the bottom of the tray is fixedly connected with a supporting rod, the supporting rod is fixedly connected to the inner wall of the bottom of the baking oven body, the gas inlet mechanism comprises a gas inlet pipe and an air inlet pipe, and the gas inlet pipe and the air inlet pipe are arranged on the two sides of the baking oven body respectively; the submerged nozzle baking oven has the advantages that the submerged nozzle baking effect is greatly improved, and meanwhile the submerged nozzle baking oven adopts the design of the stirring wheels, so that the concentration of mixed gas and air is more uniform.

Description

TECHNICAL FIELD

[0001] The utility model relates to cast steel equipment technical field, concretely relates to a continuous casting machine tundish submerged entry nozzle baking oven. BACKGROUND

[0002] Submerged entry nozzle is located between continuous casting tundish and crystallizer, is the flow guide pipe of molten steel from tundish to crystallizer. Its function is: prevent molten steel secondary oxidation, control molten steel flow state and injection speed, promote inclusion floating, prevent protective slag and non-metallic inclusion from being rolled into molten steel etc. With the development of science and technology, the requirement of steel performance is increasingly stringent, and submerged entry nozzle has become one of the most important functional refractory materials for preventing secondary oxidation of injection flow from tundish to crystallizer and improving steel cleanliness. During the use of submerged entry nozzle, it is usually necessary to carry out baking to prevent the blockage of nozzle caused by cold shutdown due to too low temperature and the nozzle burst caused by stress concentration due to too large temperature difference, and therefore a continuous casting machine tundish submerged entry nozzle baking oven is required.

[0003] The existing baking oven body needs to pass air and gas into the inside of the baking oven body when working, but the mixing effect of air and gas is not good when they are passed in simultaneously, thus affecting the baking effect and causing problems in product quality. SUMMARY

[0004] Therefore, the utility model provides a continuous casting machine tundish submerged entry nozzle baking oven, places the product in the inside of the baking oven body through the user, passes air and gas in through the gas inlet pipe and air inlet pipe, starts the transmission motor to work simultaneously, makes the air and gas fully mix and then enter the inside of the baking oven body, and the submerged entry nozzle baking effect is better, so as to solve the problem that the existing baking oven body needs to pass air and gas into the inside of the baking oven body when working, but the mixing effect of air and gas is not good when they are passed in simultaneously, thus affecting the baking effect and causing problems in product quality.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a continuous casting machine tundish submerged entry nozzle baking oven, comprising

[0006] The baking oven body is provided with a circular structure.

[0007] The baking oven body bottom is equipped with an air inlet mechanism, and the air inlet mechanism is used for passing gas and air into the inside of the baking oven body.

[0008] The tray is provided with a circular structure, and the tray is arranged in the inside of the baking oven body. The tray bottom is fixedly connected with a supporting rod, and the supporting rod is fixedly connected to the inner wall of the baking oven body bottom.

[0009] The air inlet mechanism comprises a gas inlet pipe and an air inlet pipe, and the gas inlet pipe and the air inlet pipe are arranged on both sides of the baking oven body respectively.

[0010] The air inlet mechanism further comprises a gas collecting box, the gas collecting box is arranged at the bottom of the baking oven body, and the gas collecting box is communicated with the gas inlet pipe and the air inlet pipe.

[0011] Preferably, the air inlet mechanism comprises a transmission motor, the transmission motor is arranged at the bottom of the gas collecting box, a transmission shaft is fixedly connected to the output end of the transmission motor, the top end of the transmission shaft extends into the gas collecting box, and the transmission shaft and the gas collecting box are movably connected through a rolling bearing.

[0012] Preferably, the air inlet mechanism further comprises a stirring wheel, the stirring wheel is embedded in the gas collecting box, and the stirring wheel is fixedly sleeved outside the transmission shaft.

[0013] Preferably, the air inlet mechanism further comprises two exhaust pipes, the two exhaust pipes are arranged at the top of the gas collecting box, the top ends of the two exhaust pipes extend into the baking oven body, the gas collecting box is communicated with the baking oven body through the exhaust pipes, and control assemblies are arranged in the two exhaust pipes.

[0014] Preferably, the control assembly comprises two lifting rods, the two lifting rods are embedded in the two exhaust pipes respectively, the lifting rods slide with the exhaust pipes, and the bottom ends of the two lifting rods are fixedly connected with stop blocks.

[0015] Preferably, the control assembly further comprises two lifting plates, the two lifting plates are arranged in the baking oven body, and the two lifting plates are fixedly connected to the top ends of the two lifting rods respectively.

[0016] Preferably, two air grooves are embedded in the two exhaust pipes respectively, a plurality of blocking strips are embedded in the top portions of the air grooves, and the plurality of blocking strips are fixedly connected to the bottom portions of the two lifting plates respectively.

[0017] Preferably, springs are fixedly connected to the top portions of the two lifting plates, and the two springs are fixedly connected to the bottom portion of the tray.

[0018] Preferably, a plurality of blocking rods are embedded in the gas collecting box, and the plurality of blocking rods are sleeved outside the stirring wheel.

[0019] Preferably, a plurality of supporting legs are fixedly connected to the bottom portion of the baking oven body, a supporting plate is arranged between the plurality of supporting legs, and the supporting plate is arranged at the bottom of the transmission motor.

[0020] The beneficial effects of the present application are as follows:

[0021] By using the user to place the product inside the baking oven body, air and gas are introduced through the gas inlet pipe and the air inlet pipe, and the transmission motor is started to work, so that the gas and air are fully mixed and then enter the baking oven body, so that the immersion nozzle baking effect is better, so as to solve the problem that the existing baking oven body needs to introduce air and gas into the baking oven body during work, but the mixing effect of air and gas is not good, so that the baking effect is affected, and the product quality problem is caused, the utility model greatly improves the effect of immersion nozzle baking, and the device adopts the design of the stirring wheel, so that the concentration of mixed gas is more uniform, the immersion nozzle is more convenient to bake, and in addition, the device adopts the design of the control assembly, so that the mixed gas can enter the baking oven body uniformly. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only exemplary, and those skilled in the art can also obtain other implementation drawings according to the provided drawings without creating labor.

[0023] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the limiting conditions of the utility model that can be implemented, so they do not have technical significance, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that the utility model can produce, should still fall within the scope covered by the technical content disclosed by the utility model.

[0024] Figure 1 The overall structure schematic view provided by the utility model is provided;

[0025] Figure 2 The partial front view cross-sectional view provided by the utility model is provided;

[0026] Figure 3 The gas collecting box three-dimensional structure schematic view provided by the utility model is provided;

[0027] Figure 4 The exhaust pipe three-dimensional structure schematic view provided by the utility model is provided;

[0028] In the drawing: 1, baking oven body;2 tray;3 support rod;4 gas inlet pipe;5 air inlet pipe;6 gas collecting box;7 transmission motor;8 transmission shaft;9 stirring wheel;10 exhaust pipe;11 lifting rod;12 stop block;13 lifting plate;14 air passage;15 blocking bar;16 spring;17 stop rod;18 support leg;19 support plate. DETAILED DESCRIPTION

[0029] The preferred embodiments of the utility model are described below in conjunction with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0030] Referring to the drawings Figure 1 - the drawings Figure 4 The utility model provides a kind of submerged entry nozzle baking furnace in continuous casting machine tundish, including

[0031] Baking furnace body 1 is provided as circular structure;

[0032] Baking furnace body 1 bottom is equipped with air intake mechanism, air intake mechanism is used to be inhaled gas and air to baking furnace body 1 inside;

[0033] Tray 2, tray 2 is provided as circular structure, tray 2 is located in baking furnace body 1 inside, tray 2 bottom is fixedly connected with support rod 3, support rod 3 is fixedly connected in baking furnace body 1 bottom inner wall;

[0034] Air intake mechanism includes gas inlet pipe 4 and air inlet pipe 5, gas inlet pipe 4 and air inlet pipe 5 are located at baking furnace body 1 both sides respectively;

[0035] Air intake mechanism further includes gas collection box 6, gas collection box 6 is located at baking furnace body 1 bottom, and gas collection box 6 is communicated with gas inlet pipe 4 and air inlet pipe 5;

[0036] In the embodiment, the user places the product in the baking furnace body 1, air and gas are inhaled through gas inlet pipe 4 and air inlet pipe 5, and the transmission motor 7 is started to work, so that the gas and air are fully mixed and enter the baking furnace body 1, so that the submerged entry nozzle baking effect is better;

[0037] Wherein, in order to realize the purpose of air intake, the device uses the following technical scheme to realize: air intake mechanism includes transmission motor 7, transmission motor 7 is arranged at the bottom of the gas collecting box 6, the output end of transmission motor 7 is fixedly connected with transmission shaft 8, the top end of transmission shaft 8 extends to the inside of gas collecting box 6, transmission shaft 8 and gas collecting box 6 are movably connected through rolling bearing, air intake mechanism also includes stirring wheel 9, stirring wheel 9 is embedded in the inside of gas collecting box 6, stirring wheel 9 is fixedly sleeved on the outside of transmission shaft 8, air intake mechanism also includes two exhaust pipes 10, two exhaust pipes 10 are all arranged at the top of gas collecting box 6, the top end of two exhaust pipes 10 all extends to the inside of baking oven body 1, gas collecting box 6 is communicated with baking oven body 1 through exhaust pipe 10, control assembly is arranged in the inside of two exhaust pipes 10, control assembly includes two lifting rods 11, two lifting rods 11 are respectively embedded in the inside of two exhaust pipes 10, lifting rod 11 slides with exhaust pipe 10, the bottom end of two lifting rods 11 is fixedly connected with stop block 12, control assembly also includes two lifting plates 13, two lifting plates 13 are all arranged in the inside of baking oven body 1, two lifting plates 13 are respectively fixedly connected at the top end of two lifting rods 11, two exhaust pipes 10 are all embedded with two air slots 14, a plurality of air slots 14 are embedded with a plurality of blocking strips 15 in the inside of top portion, a plurality of blocking strips 15 are respectively fixedly connected at the bottom of two lifting plates 13, the top of two lifting plates 13 is fixedly connected with spring 16, two springs 16 are all fixedly connected with the bottom of tray 2, a plurality of stop rods 17 are embedded in the inside of gas collecting box 6, a plurality of stop rods 17 are all sleeved on the outside of stirring wheel 9;

[0038] The user starts the transmission motor 7 to work, the transmission motor 7 drives the transmission shaft 8 to rotate, the transmission shaft 8 drives the stirring wheel 9 to rotate, the stirring wheel 9 rotates and mixes the air and gas into the even, at the same time, the stirring wheel 9 rotates and drives a plurality of stop rods 17 to rotate, the stop rod 17 rotates and abuts a plurality of stop blocks 12, so that a plurality of stop blocks 12 extend into the inside of exhaust pipe 10, when the stop block 12 extends into the inside of exhaust pipe 10, it drives the lifting rod 11 and the lifting plate 13 to rise, the lifting plate 13 drives a plurality of blocking strips 15 to rise, so that the blocking strip 15 is separated from the air slot 14, so that the gas collecting box 6 is communicated with the baking oven body 1 through the air slot 14, so that the mixed gas enters the inside of the baking oven body 1, so that the baking effect is better;

[0039] Wherein, in order to realize the purpose of structure support, the device uses the following technical scheme to realize: the bottom of baking oven body 1 is fixedly connected with a plurality of supporting legs 18, a plurality of supporting legs 18 are provided with supporting plate 19, supporting plate 19 is arranged at the bottom of transmission motor 7;

[0040] The design of a plurality of supporting legs 18 and supporting plate 19 supports transmission motor 7 and baking oven body 1, so that the overall structure is more stable.

[0041] The use process of the utility model is as follows: the user places the product inside the baking oven body 1, air and gas are introduced through the gas inlet pipe 4 and the air inlet pipe 5, and the transmission motor 7 is started to work, so that the gas and air are fully mixed and then enter the inside of the baking oven body 1, so that the submerged nozzle baking effect is better, the user starts the transmission motor 7 to work, the transmission motor 7 drives the transmission shaft 8 to rotate, the transmission shaft 8 drives the stirring wheel 9 to rotate, the stirring wheel 9 rotates to uniformly mix the introduced air and gas, meanwhile, the stirring wheel 9 drives the plurality of blocking rods 17 to rotate, the blocking rods 17 rotate to abut the plurality of blocking blocks 12, so that the plurality of blocking blocks 12 extend into the inside of the exhaust pipe 10, when the blocking blocks 12 extend into the inside of the exhaust pipe 10, the lifting rod 11 and the lifting plate 13 are driven to ascend, the lifting plate 13 drives the plurality of blocking strips 15 to ascend, so that the blocking strips 15 are separated from the air passage 14, so that the gas collecting box 6 is communicated with the baking oven body 1 through the air passage 14, so that the completely mixed gas enters the inside of the baking oven body 1, so that the baking effect is better, the design of the plurality of supporting legs 18 and the supporting plate 19 supports the transmission motor 7 and the baking oven body 1, so that the overall structure is more stable.

[0042] The above is only the preferred embodiment of the utility model, any skilled person in the art can modify the utility model by using the above-mentioned technical solutions or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement according to the technical scheme of the utility model is within the scope of protection required by the utility model.

Claims

1. A continuous casting tundish submerged entry nozzle baking furnace characterized by: Comprising The baking oven body (1) is provided with an air inlet mechanism for introducing gas and air into the inside of the baking oven body (1). The tray (2) is provided with a support rod (3) fixedly connected to the bottom of the baking oven body (1). The air inlet mechanism includes a gas inlet pipe (4) and an air inlet pipe (5), which are respectively arranged on both sides of the baking oven body (1). The air inlet mechanism further includes a gas collecting box (6) arranged at the bottom of the baking oven body (1), which is in communication with the gas inlet pipe (4) and the air inlet pipe (5). The air inlet mechanism further includes a stirring wheel (9) embedded in the inside of the gas collecting box (6), and the stirring wheel (9) is fixedly sleeved on the outside of the transmission shaft (8).

2. A continuous casting machine tundish submerged entry nozzle baking furnace according to claim 1, characterized in that: The air inlet mechanism further includes two exhaust pipes (10) arranged at the top of the gas collecting box (6), and the top of the exhaust pipe (10) extends into the inside of the baking oven body (1).

3. A continuous casting machine tundish submerged entry nozzle baking furnace according to claim 1, characterized in that: The control assembly includes two lifting rods (11) embedded in the inside of the two exhaust pipes (10), and the lifting rod (11) is in sliding connection with the exhaust pipe (10).

4. A continuous casting machine tundish submerged entry nozzle baking furnace according to claim 1, characterized in that: The control assembly further includes two lifting plates (13) arranged in the inside of the baking oven body (1), and the lifting plate (13) is fixedly connected to the top of the lifting rod (11).

5. A continuous caster tundish submerged entry nozzle baking furnace according to claim 4, characterized in that: The inside of the exhaust pipe (10) is embedded with two air grooves (14), and the top of the air groove (14) is embedded with a plurality of blocking strips (15).

6. A continuous casting machine tundish submerged entry nozzle baking furnace according to claim 4, characterized in that: The top of the lifting plate (13) is fixedly connected with a spring (16), and the spring (16) is fixedly connected with the bottom of the tray (2).

7. A continuous caster tundish submerged entry nozzle baking furnace according to claim 4, characterized in that: The inside of the gas collecting box (6) is embedded with a plurality of blocking rods (17), and the blocking rod (17) is sleeved on the outside of the stirring wheel (9).

8. A continuous casting machine tundish submerged entry nozzle baking furnace according to claim 6, characterized in that: The bottom of the baking oven body (1) is fixedly connected with a plurality of supporting legs (18), and the supporting legs (18) are provided with a supporting plate (19) arranged at the bottom of the transmission motor (7).

9. A submerged entry nozzle baking furnace for a tundish of a continuous casting machine according to claim 1, characterized in that: ​ 10. A submerged entry nozzle baking furnace for a tundish of a continuous casting machine according to claim 1, characterized in that: ​

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