Bottom discharge device and usage method of mixing pot

Abstract

The invention discloses a discharge device at the bottom of a mixing pot and a use method thereof. The device comprises a mixing pot, a valve body is installed at the bottom of the valve body, and a discharge port is arranged in the center of the top plate of the valve body, and the discharge port is blocked by a valve core , the lower part of the valve core is connected to the valve core seat through the ejector rod, and a protective cover is provided under the valve core seat, the lower edge of the valve body, the edge of the valve core seat and the edge of the protective cover are connected and fixed, and the ejector rod runs through the valve core seat The back is located above the protective cover, and the center of the protective cover is provided with a hole, and fastening bolts are installed in the hole to lock the ejector rod. During the mixing and pouring process, the device separates and communicates the slurry with the inner and outer channels of the mixing pot, so as to ensure that the slurry does not leak during the mixing process and the transfer of the mixing pot, and that the slurry can flow smoothly during pouring. The device can improve product quality, ensure the safety of the operation process, reduce the labor intensity of operators, and improve the work 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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