Processing method of full steel pipe protected by refractory material

A technology of refractory materials and processing methods, which is used in manufacturing tools, fibrous fillers, auxiliary molding equipment, etc., can solve the problems of secondary atomization damage of raw oil, unstable gas flow rate, and fluctuation of product quality, and achieve thermal shock stability. Good performance, prolong the interval of regular replacement, reduce the effect of surface temperature

Active Publication Date: 2015-03-11
石家庄市新星化炭有限公司
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Problems solved by technology

Existing throats are built with high-temperature refractory materials. Due to reasons such as manufacturing and use, they are often scoured by high-temperature and high-speed airflow during use, and then the shape changes, and the inner wall becomes rough, resulting in unstable gas flow rate and raw materials. The secondary atomization of oil is destroyed, and the product quality fluctuates

Method used

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Experimental program
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Embodiment Construction

[0016] A method for processing an all-steel throat pipe protected by a refractory material, comprising the following steps:

[0017] A. Inner tank preparation, use a steel plate rolling machine to process the steel plate into a cylindrical inner tank, and perform machining correction on the inner wall and diameter of the inner tank to ensure that the error value is within 0.5mm, and open the corresponding position of the inner tank Oil gun mouth through hole;

[0018] B. Mold installation, use anchors to fix the mold in the inner tank, and fix the multi-lobed split mold to form an overall cylindrical shape, leave a filling gap between the mold and the inner tank, and weld and fix the anchors and the inner tank , when the mold is installed in place, use a stick-shaped object at the through hole of the oil gun mouth to block the through hole of the oil gun mouth and extend out of the oil gun mouth through hole to fit closely with the outer wall of the mold, which can prevent the...

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Abstract

The invention discloses a processing method of a full steel pipe protected by a refractory material. A steel plate is produced to a liner, and the refractory material prepared by evenly mixing chrome corundum and a binding agent is cast in the liner to obtain the full steel pipe protected by the refractory material; in the pipe produced by the method, the volume density of the refractory material is at least 3.0 g / cm3, and approaches the volume density of 3.2 g / cm3 of machine-made bricks; and the refractory material can bear the external force damage strength of 20 MPa approaching the strength of cement, can bear the scour from high-temperature and high-speed air flows without generating the deformation, and is smooth in inner wall, so that high-temperature gas can quickly pass through, raw oil is continuously and stably shorn and atomized, the product quality can be preferably guaranteed, and the service life of the life is prolonged.

Description

technical field [0001] The invention belongs to the technical field of processing methods, and relates to a processing method of a throat, in particular to a processing method of an all-steel throat protected by a refractory material used in the production process of carbon black. Background technique [0002] The throat, the core component of the carbon black reactor, is a feature of the carbon black production device in the new process. The shape of the throat determines the quality and production rate of carbon black in the process. Existing throats are built with high-temperature refractory materials. Due to reasons such as manufacturing and use, they are often scoured by high-temperature and high-speed airflow during use, and then the shape changes, and the inner wall becomes rough, resulting in unstable gas flow rate and raw materials. The secondary atomization of oil is destroyed, and the product quality fluctuates. Contents of the invention [0003] In order to ov...

Claims

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Application Information

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IPC IPC(8): B23P15/00B28B1/14B28B17/00C09C1/50
CPCB23P15/00B28B1/14C09C1/50
Inventor 苏吉春苏建军毕老虎薛俊杰李祥录张志廷
Owner 石家庄市新星化炭有限公司
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