Mixing pot bottom discharge apparatus and application method thereof

Abstract

The invention discloses a mixing pot bottom discharge apparatus and an application method thereof. The mixing pot bottom discharge apparatus comprises a mixing pot; a valve is mounted at the bottom ofthe mixing pot; the center of a top plate of the valve is provided with a discharge port; the discharge port is sealed with a valve core; the lower portion of the valve core is connected with a valvecore holder through an ejector rod; a protective cover is arranged below the valve core holder; the lower edge of the valve, the edge of the valve core holder and the edge of a protective cover are fixedly connected; after the ejector rod is passed through the valve core holder, the ejector rod is positioned above the protective cover; the center of the protective cover is provided with a hole; afastening bolt is mounted in the hole to lock the ejector rod. Isolation and connection are separately provided for chemical slurry and inside and outside passages of the mixing pot during mixing andpouring processes; it is ensured that no chemical slurry leaks during the mixing process and mixing pot transport process; the chemical slurry may flow smoothly during pouring. The mixing pot bottomdischarge apparatus helps improve product quality, ensure operational process safety, lower labor intensity for operators and improve working efficiency.

Description

technical field [0001] The invention belongs to the field of solid rocket motor propellant charge, and in particular relates to a bottom discharging device of a mixing pot and a use method thereof. Background technique [0002] The vertical kneader is one of the key production equipment in the production process of rocket engine composite solid propellant charge. Its model specification directly reflects the production capacity and scale of military enterprises. Its structure is as follows: figure 1 As shown, the main part of the equipment is mainly composed of hydraulic motor, transmission box, paddle, slide table, mixing pot, support seat and so on. The mixing pot is an important part of the vertical kneader, and the matching quantity is generally 1 to 3 sets. According to the production process of composite solid propellants, the mixing pots for large vertical kneaders need to complete related operations in three positions: premixing, mixing, and pouring. [0003] The m...

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Problems solved by technology

[0004] Since the 1990s, major domestic vertical kneader manufacturers have equipped vertical kneaders with models of 1000L, 2000L, and 2400L with the bottom discharge method of the mixing pot. The structure adopted is as follows figure 2 As shown, in the process of delivery, there are very obvious design defects such as the difficulty of disassembly and cleaning due to the complex structure, the labor intensity of the operator, the easy penetration of the slurry into the moving parts of the valve stem, and the inability to realize remote control. The bottom discharge method cannot be used normally, and we have to go back to the old way of turning the mixing pot to discharge the material. As a result, the bottom discharge process of the mixing pot cannot be popularized and used in the production of composite solid propellant charges.

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