Pre-constructing method of hearth bricks of multiple-hearth roaster
A multi-layer roasting furnace and hearth brick technology, which is applied in the direction of lining repair, etc., can solve the problems of brick loss, serious hearth brick masonry quality, hearth wear and so on.
Inactive Publication Date: 2013-04-17
PANGANG GRP ENG TECH
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Problems solved by technology
In addition, because the hearth will generate impact loads during the perennial vibration load and furnace charge erosion, it is very easy to cause severe wear and tear of the hearth and bricks will fall off. The quality of the hearth bricks in the entire roasting furnace lining bricks is particularly serious
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[0013] Exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
[0014] figure 1 is a schematic cross-sectional view of a multi-layer baking furnace according to an embodiment of the present invention. Figure 2A is a top view of a hearth with an edge feed opening according to an embodiment of the present invention, Figure 2B It is a top view of a hearth with a central feed opening according to an embodiment of the present invention. refer to Figure 1 to Figure 2B , the multi-layer baking furnace according to the embodiment of the present invention includes a furnace wall 100 and a plurality of first hearths 200 and a plurality of second hearths 300 , wherein the first hearths 200 and the second hearths 300 are arranged alternately....
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The invention discloses a pre-constructing method of hearth bricks of a multiple-hearth roaster. The method includes: using 1mm as grade to select and sort bricks according to main size tolerance of bricks, and inspecting appearance of bricks to remove unqualified bricks; grinding plaster surfaces of selected bricks to guarantee tight combination of bricks during construction; drawing a cross central line on a pre-constructing platform, allowing a conical face of each hearth brick to face upwardly, constructing from a first layer, arranging each arch layer ring by ring from the outer ring to the inner ring in a dried manner, inspecting surface smoothness after construction, and grinding each brick whose error exceeds a preset value; drawing a cross central line on the surface of each arch after constructing and grinding of each arch layer, and numbering the bricks piece by piece; and classifying and storing the numbered bricks according to the numbers; wherein the same ring uses bricks of same grade in main size during construction, and bricks of large grade are ground into bricks of small grade for construction when cooperation of bricks of two grades is needed.
Description
technical field [0001] The invention relates to a pre-laying method for hearth bricks of a multi-layer roasting furnace, more specifically, the present invention relates to a pre-laying method for hearth bricks of a multi-layer roasting furnace which can improve the quality of the pre-laying. Background technique [0002] Self-suspended multi-layer roasting furnace is roasting V 2 o 3 and V 2 o 5 As an important thermal equipment for raw materials, there are usually multi-layer hearths in the furnace. The upper surface of a typical hearth is a horizontal plane, and the lower surface is a conical surface, and the taper is generally small. There is a rotatable shaft in the center of the hearth, and a rake arm is installed on the hollow shaft of each hearth for raking. When the rake arm rotates with the hollow shaft, the charge is raked from the upper hearth layer by layer. [0003] During the use of multi-layer roasting furnace, due to the complex chemical composition of...
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IPC IPC(8): F27D1/16
Inventor 蒋辉彭将国吴荣善冯树雄
Owner PANGANG GRP ENG TECH