Desulfurization spray gun

The technology of desulfurization spray gun and pipeline is applied in the field of molten iron desulfurization treatment device, which can solve the problems of low stability of refractory material and gun body skeleton, mechanical deformation of gun body skeleton, failure of refractory material layer, etc., and achieves low operating cost and service life. Long, extended service life effect

CN101984081AInactive Publication Date: 2011-03-09LIAONING ZHONGBANG HI TECH DEV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-03-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the field of molten iron desulfurization treatment devices and in particular relates to a desulfurization spray gun. The spray gun comprises a gun body (2), a pipeline (1), refractory material layers (4), frameworks (3) and a plurality of ring-shaped ribs (5), wherein the frameworks (3) are arranged in the refractory material layers and are fixedly connected with the pipeline (1); the ring-shaped ribs (5) are fixedly connected with the pipeline (1) by transverse ribs (6); the bottom of the pipeline (1) is fixedly provided with a stable pile (7); the ring-shaped ribs (5) are in the shape of concentric rings; a protective layer (8) is arranged outside the refractory material layers (4); eagle claw shaped frameworks (9) are fixedly arranged on the transverse ribs (6); and the outlet end of the pipeline (1) is of horn mouth structure. The spray gun has the following beneficial effects: the spray gun has simple structure and low operation cost; the refractory materials and the gun body frameworks have high stability; the gun body frameworks are not liable to mechanical deformation; and the gun body has long service life.
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Description

technical field

[0001] The invention belongs to the field of molten iron desulfurization treatment devices, and in particular relates to a desulfurization spray gun. Background technique

[0002] At present, before steelmaking in the smelting industry, it is generally necessary to carry out desulfurization pretreatment on molten iron, and the main equipment used in the above process is the desulfurization spray gun. Due to the fact that the existing hot metal desulfurization spray gun does not fully consider the difference in physical properties between the pipeline and the refractory material layer in the design of the skeleton and the gun body, when the spray gun is used in an alternating state of cold and hot, the refractory material layer is likely to cause cracking and falling off. In addition, due to the low degree of stability between the refractory material and the frame of the gun body and the eccentricity of the frame of the gun body, the actual operation of the eq...

Examples

Embodiment Construction

[0014] Such as figure 1 , 2 As shown, the desulfurization spray gun includes: a gun body 2, a pipeline 1, a refractory material layer 4, a skeleton 3 and an annular rib 5; The shaped ribs 5 are fixedly connected with the pipeline 1 through the transverse ribs 6; the bottom of the pipeline 1 is fixedly provided with a stabilizing pile 7. The stabilizing pile 7 can effectively prevent the eccentricity of the pipeline 1 and the overall framework, thereby further strengthening the stability of the system structure.

[0015] In order to strengthen the effect of stress distribution, the annular ribs 5 in the present invention are several concentric annular ribs. This structural design can effectively solve the phenomenon of longitudinal cracking and falling off of the refractory material layer.

[0016] In order to prolong the life of the gun body, the present invention can be provided with a protective layer 8 outside the refractory material layer 4 .

[0017] In the present in...