Automatic ignition device for continuous casting slab

Abstract

The utility model discloses an automatic ignition device for a continuous casting slab, which relates to the technical field of ignition devices, and comprises a gun body with a pipe structure, a mounting seat and a nozzle, the mounting seat and the nozzle are respectively arranged at two ends of the gun body, the mounting seat is connected with a mixed gas pipe, one end of the mixed gas pipe is communicated with the gun body, and the other end of the mixed gas pipe is communicated with the nozzle. The other end of the mixed gas pipe is connected with a gas connector, a ceramic cyclone head and a wabbler are sequentially arranged in the nozzle in the gas flowing direction, a lengthened sparking plug is fixedly arranged in the installation base, the positive electrode of the lengthened sparking plug extends into the nozzle and penetrates through the ceramic cyclone head to be connected with the wabbler, and the negative electrode of the lengthened sparking plug extends into the nozzle. A spark area is formed between the wabbler and the inner wall of the nozzle, a fire damper is fixedly arranged on the outer side of the nozzle, the ignition position is arranged in the nozzle, the ignition position is far away from the fuel gas outlet with high pressure, sparks can be generated at multiple positions through the wabbler, and the ignition success rate is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to ignition device technical field, concretely is a kind of continuous casting slab automatic ignition device. BACKGROUND

[0002] In steel continuous casting production, the billet from crystallizer is continuous, needs to be cut into fixed length by flame cutting equipment, which needs flame cutting gun in cutting equipment, in order to ensure the continuity of flame cutting gun in the continuous casting billet cutting process, usually set flame cutting gun as long-lasting flame, so it will cause gas waste when not needing ignition, for this, automatic ignition device is needed to ignite for flame cutting gun, to achieve the purpose of energy saving;

[0003] However, the ignition position of the existing automatic ignition device is near the gas outlet, and the ignition spark is easy to be blown out by the pressurized gas, causing ignition failure and low reliability. Once the ignition fails, it will affect the normal cutting of the slab, seriously affecting the casting speed and the quality of the billet. Therefore, it is a technical problem for those skilled in the art to provide an automatic ignition device with high ignition reliability. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides an automatic ignition device for continuous casting slab to solve the problems raised in the background art.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: an automatic ignition device for continuous casting slab, comprising a gun body of pipe structure, mounting seats and nozzles arranged at both ends of the gun body, a mixed gas pipe connected to the mounting seat, one end of the mixed gas pipe being in communication with the gun body, a gas joint connected to the other end of the mixed gas pipe, a ceramic cyclone head and a wobbler arranged in the gas flow direction in the nozzle, a lengthened spark plug fixedly arranged in the mounting seat, the positive electrode of the lengthened spark plug extending into the nozzle and being connected to the wobbler through the ceramic cyclone head, a spark zone formed between the wobbler and the inner wall of the nozzle, and a fire baffle fixedly arranged outside the nozzle.

[0006] Preferably, a plurality of air holes are formed in the side wall of the nozzle.

[0007] Preferably, a plurality of fixing frames for fixing the positive electrode of the lengthened spark plug are arranged in the gun body.

[0008] Preferably, an ignition gun support is fixedly arranged outside the gun body.

[0009] Preferably, an explosion-proof junction box is fixedly arranged on the mounting seat, and the wire connection end of the lengthened spark plug is arranged in the explosion-proof junction box.

[0010] Advantages

[0011] The utility model provides a kind of continuous casting slab automatic ignition device, with following advantages: relative to traditional ignition gun, the position of ignition of the device is set in nozzle, make ignition position away from the gas outlet of higher pressure, can produce spark in multiple places by plum blossom head, improve ignition success rate;Gas can be rotated in nozzle by ceramic cyclone head, make the gas that nozzle sprays more uniform;The device is small in structure, light in weight, can be applied in multiple occasions, without large-power driving motor when needing to lift, move the device horizontally. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the perspective view of the utility model;

[0013] Figure 2 It is the internal structure diagram of the utility model from main view;

[0014] Figure 3 It is the plan view of the utility model;

[0015] Figure 4 It is the main view of lengthened spark plug;

[0016] Figure 5 It is Figure 2 the sectional view of A-A;

[0017] Figure 6 It is Figure 3 the sectional view of B-B;

[0018] Figure 7 It is the perspective view of ceramic cyclone head;

[0019] Figure 8 It is the perspective view of plum blossom head;

[0020] Figure 9 It is the perspective view of fixed frame.

[0021] In the drawing: 1, gun body;2, mounting seat;3, nozzle;4, mixed gas pipe;5, gas joint;6, ceramic cyclone head;7, plum blossom head;8, lengthened spark plug;9, fire baffle;10, air hole;11, fixed frame;12, ignition gun support;13, explosion-proof junction box. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model.

[0023] Please refer to Figures 1-9The utility model provides a technical scheme: a kind of continuous casting slab automatic ignition device, including the gun body 1 of pipe structure, the mounting seat 2 and nozzle 3 respectively being arranged at the both ends of gun body 1, mixed gas pipe 4 is connected on mounting seat 2, one end of mixed gas pipe 4 is communicated with gun body 1, mixed gas pipe 4 other end is connected with gas joint 5, ceramic cyclone head 6 and wobble head 7 are sequentially arranged in nozzle 3 along gas flow direction, elongated spark plug 8 is fixedly arranged in mounting seat 2, the positive pole of elongated spark plug 8 extends to nozzle 3 and is connected with wobble head 7 by passing ceramic cyclone head 6, and the spark area is formed between wobble head 7 and the inner wall of nozzle 3, so that ignition position is away from the gas outlet of higher pressure, and multiple convex points can be formed by wobble head 7 in the shape of plum blossom, multiple sparks are generated, the ignition success rate is improved, fire baffle 9 is fixedly arranged on the outside of nozzle 3, and the direction of flame is changed by fire baffle 9, so that flame is sprayed to flame cutting torch.

[0024] Further, a plurality of air holes 10 are formed in the side wall of nozzle 3, so that oxygen in the air can enter the nozzle, and the combustion effect is improved.

[0025] Further, a plurality of fixing frames 11 for fixing the positive pole of elongated spark plug 8 are arranged in gun body 1.

[0026] Further, ignition gun support 12 is fixedly arranged on the outside of gun body 1, and is used for fixing ignition gun on one side of flame cutting torch.

[0027] Further, explosion-proof junction box 13 is fixedly arranged on mounting seat 2, and the wire connection end of elongated spark plug 8 is arranged in explosion-proof junction box 13, so that elongated spark plug 8 can be easily maintained.

[0028] By the person skilled in the art, all electrical components in the case and their adapted power supply are connected by wires, and appropriate controllers should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should be completed according to the working principle and the order of the electrical components. The detailed connection means is a known technology in the art. The working principle and process are mainly introduced below, and the electrical control is not described.

[0029] The working principle and use process of the utility model are as follows: when in use, gas enters mixed gas pipe 4 through gas joint 5, at this time, the gas is released, and the released gas enters nozzle 3 through mounting seat 2 and gun body 1. After elongated spark plug 8 is powered on, multiple sparks are generated between wobble head 7 and the inner wall of nozzle 3. At this time, the gas is ignited by the sparks and sprayed out of nozzle 3, and the flame direction is changed by fire baffle 9 to ignite the flame cutting torch. The gas can be rotated in nozzle 3 by ceramic cyclone head 6, so that the gas sprayed out of nozzle 3 is more uniform.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic ignition device for continuously cast slabs, characterized in that, The gun body (1) comprises a pipe structure, a mounting seat (2) and a nozzle (3) arranged at both ends of the gun body (1) respectively, a mixed gas pipe (4) connected to the mounting seat (2), one end of the mixed gas pipe (4) being communicated with the gun body (1), the other end of the mixed gas pipe (4) being connected with a gas joint (5), the nozzle (3) being sequentially provided with a ceramic cyclone head (6) and a plug head (7) in the direction of gas flow, the mounting seat (2) being fixedly provided with an extended spark plug (8), the positive electrode of the extended spark plug (8) extending into the nozzle (3) and being connected with the plug head (7) through the ceramic cyclone head (6), a spark area being formed between the plug head (7) and the inner wall of the nozzle (3), and a fire baffle (9) being fixedly arranged outside the nozzle (3).

2. A continuous casting slab automatic ignition device according to claim 1, characterized in that, A plurality of air holes (10) are formed in the side wall of the nozzle (3).

3. The apparatus according to claim 1, wherein the apparatus is characterized by: A plurality of fixing frames (11) for fixing the positive electrode of the extended spark plug (8) are arranged in the gun body (1).

4. The apparatus according to claim 1, wherein A fire gun support (12) is fixedly arranged outside the gun body (1).

5. The apparatus according to claim 1, wherein An explosion-proof junction box (13) is fixedly arranged on the mounting seat (2), and the wire connection end of the extended spark plug (8) is arranged in the explosion-proof junction box (13).

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