An integral ceramic pump body ceramic casting mold and its pressure ring structure

Abstract

An integral ceramic pump body ceramic casting mold and its pressure ring structure belong to the technical field of ceramic pump body processing tools, in particular to an integral ceramic pump body ceramic casting mold and its pressure ring structure. The invention provides an integral type which can avoid material leakage at the outer flange of the shell during the pouring process, and at the same time save the process of manually cutting the ceramic material after the ceramic material is solidified, thereby improving production efficiency and saving production supplies such as knives. A ceramic pump body ceramic casting mold and its pressure ring structure. The present invention is characterized in that: between the inner flange and the outer flange, a pressure ring which is matched with the outer surface of the mold is arranged; the pressure ring comprises a ring body, and the lower surface of the ring body is provided with a clamping groove corresponding to the annular protrusion; The inner flange of the mold body and the outer flange of the shell are connected by connecting bolts, the ring body is provided with through holes corresponding to the connecting bolts, and the inner flange is provided corresponding to the upper surface of the ring body. There are top wire holes.

Description

technical field [0001] The invention belongs to the technical field of ceramic pump body processing tools, and particularly relates to an integral ceramic pump body ceramic casting mold and a pressure ring structure thereof. Background technique [0002] Silicon carbide ceramic pumps are widely used in flue gas desulfurization systems to transport slurry or other strong abrasive, strong corrosive solution media and other fields. Among them, the ceramic pump body is an important overcurrent component in the silicon carbide ceramic pump. For the silicon carbide ceramic lining, the silicon carbide ceramic material needs to be poured into the metal shell of the mold, so that the silicon carbide ceramic material fills the cavity formed between the metal shell and the mold. After being heated and solidified in a heating furnace, the silicon carbide ceramic material is tightly bonded to the inner surface of the metal shell to form a ceramic lining. Metal mold is an indispensable ...

AI Technical Summary

Problems solved by technology

[0003] In actual production, the production of silicon carbide ceramic pump bodies usually encounters the following two problems: 1. During the casting process of silicon carbide ceramics for the pump body (refer to Figure 5 , Image 6 ),like Image 6 (Pump body water outlet part) shows part A, there is a situation of material leakage, often leaking into the threaded hole of the flange, after the ceramic is solidified, the cleaning will greatly delay the construction period, and at the same time cause insufficient ceramics in other parts of the ceramic lining, After the poured ceramics are solidified, secondary replenishment is required, and it is necessary to set aside curing time for the secondary ceramics, which also greatly delays the construction period.

[0004] 2. After the ceramic pouring is completed, due to the volume shrinkage of the ceramic when it is cooled, there are often defects such as cracks at the part where the ceramic and the metal are bonded at the exit

However, in this production process, since the ceramic casting material used is a special anti-abrasion ceramic material, the ceramic is very wear-resistant after solidification, so manual cutting of the ceramic part with cracks is time-consuming, laborious and expensive.

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