Device and method for semi-dry thermal gunning repair of rotary kiln lining refractories
A repair method and technology of rotary kiln, which is applied in the direction of lining repair, lighting and heating equipment, furnace, etc., can solve the problems of production line shutdown, affecting the production of the next process, and long repair time, so as to avoid production stoppage, thicken the thickness, and repair short time effect
Active Publication Date: 2019-03-19
GUANGDONG GUANGQING METAL TECH
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Problems solved by technology
[0004] One of the purposes of the present invention is to address the above-mentioned deficiencies, to provide a semi-dry thermal gunning repair device and method for rotary kiln lining refractory materials, in order to solve the long time-consuming repair of rotary kiln lining refractory materials in the prior art , affect the production of the next process, and even cause the entire production line to face technical problems such as shutdown
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[0020] The present invention will be further elaborated below in conjunction with the accompanying drawings.
[0021] refer to figure 1 As shown, one embodiment of the present invention is a semi-dry thermal gunning repair device for rotary kiln lining refractory materials. The repair device needs to include a gunning machine 1. The aforementioned gunning machine 1 is connected to the The high-pressure air source (not shown in the figure) is connected. In addition, the gunning machine 1 needs to be connected with the spray gun 4 through the first high-pressure pipeline 3, and the spray gun 4 needs to be connected with the water tank 9 through the second high-pressure pipeline 5. ; As shown in the figure, a self-priming pump 6 also needs to be installed between the aforementioned water tank 9 and the second high-pressure pipeline 5; The high-pressure pipeline 3 outputs, and then the silica sol solution in the water tank 9 is output by the second high-pressure pipeline 5 by the...
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The invention discloses a semidry method hot gunning repair device and method of a rotary kiln lining refractory material, and belongs to a rotary kiln lining refractory material repair technology. The repair device comprises a gunning machine, the gunning machine is communicated with a high pressure air source through a compressed air pipe, the gunning machine is further communicated with a spray gun through a first high pressure pipeline, the spray gun is further communicated with a water tank through a second high pressure pipeline, a self-priming pump is installed between the water tank and the second high pressure pipeline, and is used for outputting a gunning refractory from the gunning machine through the first high pressure pipeline by utilizing high pressure air, then outputting a silica sol solution from the water tank through the second high pressure pipeline by utilizing the self-priming pump, mixing the gunning refractory and the silica sol solution in the spray gun and spraying the gunning refractory and the silica sol solution. By spraying the mixture of a mixed solution of spray gun silica sol solution and water and high alumina mullite to the inner wall of the rotary kiln through the spray gun, filling a perfoliate fracture, thickening the thickness of the refractory material, repairing a castable which sheds locally, and adopting a hot repair technology, the time for slow-down kiln cooling during cold repair is avoided, the repair time is short, and the production of the subsequent process is not influenced.
Description
technical field [0001] The present invention relates to a rotary kiln lining refractory material repair technology, more specifically, the present invention mainly relates to a rotary kiln lining refractory material semi-dry thermal gunning repair device and method. Background technique [0002] Rotary kiln is an important link in the production process of ferronickel by RKEF process, and its main functions are to increase the temperature of materials, dehydration and pre-reduction. The kiln lining refractory material of the rotary kiln is 10mm aluminum silicate fiber insulation felt + 230mm high alumina castable. The service life of the rotary kiln is mainly limited by the use of its kiln lining refractory materials. Due to the impact of long-term high-temperature use and extreme cold and extreme heat generated when the kiln is shut down for maintenance on the thermal shock stability of the refractory materials, the kiln lining of the rotary kiln is resistant to The materi...
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IPC IPC(8): F27D1/16
CPCF27D1/16F27D2001/1605
Inventor 梁国燊陈彦虎何丛珍刘光勇程学伟
Owner GUANGDONG GUANGQING METAL TECH