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A continuous powder feeding device and real-time control method

A feeding device and powder technology, applied in the direction of transportation and packaging, loading/unloading, etc., can solve the problems of inability to achieve speed control, friction sensitivity, large and fine oxidants, etc., and achieve the elimination of connection interference, short distance, and large inclination angle Effect

Active Publication Date: 2015-11-25
XIAN AEROSPACE CHEM PROPULTION PLANT
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0008] In order to overcome the deficiencies in the prior art that are not suitable for fine oxidizers with relatively high friction sensitivity, or cannot realize the speed control in continuous feeding, the present invention proposes a continuous powder feeding device and a real-time control method

Method used

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  • A continuous powder feeding device and real-time control method

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Embodiment Construction

[0032]This embodiment is a continuous powder feeding device, including a hopper 1, a vibrator 2, a feeding valve 3, a scale 5, a hose valve 6, an air hammer 7 and a feeding pipe 8.

[0033] Hopper 1 is installed on the weighing platform of the scale 5 that is positioned at support. The upper end of the blanking valve 3 is communicated with the discharge port of the hopper 1, and the lower end of the blanking valve 3 is connected with the upper end of the rubber hose valve 6 through a flexible pipe 4; Two pneumatic hammers 7 are installed on the top and the bottom of the outer wall of the feeding pipe 8 respectively. Described hopper 1, scale 5 and support are all prior art. Air hammer 7 and vibrator 2 all adopt standard parts.

[0034] The hose valve 6 is a straight-through powder hose valve disclosed in the utility model patent application No. 201320659985.X by Xi'an Aerospace Chemical Power Plant, which is a non-standard processed part. The rubber hose valve 6 includes a ...

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Abstract

The invention relates to a continuous powder feeding device and a real-time control method. A hopper of the continuous powder feeding device is installed on a weighing platform of a scale located on a bracket, the upper end of a blanking valve is communicated with a discharge hole of the hopper, the lower end of the blanking valve is communicated with the upper end of a rubber tube valve, the lower end of the rubber tube valve is communicated with a blanking pipe, and two air hammers are installed on upper and lower portions of an outer wall of the blanking pipe respectively. During feeding, the initial feeding amount is weighed, the weight of the feeding device is weighed before and after connection with a mixture pot so as to control the feeding amount, and opening of the blanking valve and a switch of a vibrator are adjusted, so that feeding speed control is achieved. According to the continuous powder feeding device and the real-time control method, continuous and smooth feeding of large-weight and small particle size powder in large vertical mixers can be achieved, feeding speeds and feeding amount can be controlled, product qualities are improved, and safety of a feeding process is guaranteed.

Description

technical field [0001] The invention relates to the field of solid propellant preparation, in particular to a large-weight, fine powder continuous on-line quantitative feeding device and a real-time control method thereof. Background technique [0002] The feeding powder in the solid propellant mixing process is mainly an oxidant. At present, the single feeding amount of domestic mixer powder is less than 1500kg, and when the content of components with a particle size of less than 40 mesh in the formula increases, feeding problems such as material blocking and arching often occur. In addition, because the falling of the material is not smooth and unstable, the control of the feeding speed depends entirely on the experience of the operating staff. [0003] Over the years, domestic pharmaceutical charging factories have adopted manual feeding or manual-assisted mechanical hopper feeding in the fine oxidant feeding process. For fine oxidizers with a particle size of less than...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G65/44B65G69/00
Inventor 朱艳明野延年寇朝辉王超张宁王艳萍曾勇
Owner XIAN AEROSPACE CHEM PROPULTION PLANT
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