A kind of ultrafine powder pneumatic conveying equipment that can precisely control conveying

Abstract

The invention discloses an ultrafine powder pneumatic conveying device capable of accurately controlling conveying and belongs to the field of powder conveying equipment. The ultrafine powder pneumatic conveying device comprises a storage device, a collection device and a powder variable frequency conveying device which are independently arranged in a separated mode. The collection device is fixedly arranged on the powder variable frequency conveying device. A discharge port of the storage device is communicated with a feed port of the collection device through a soft connecting pipe and a control valve set arranged on the soft connecting pipe in a sealing mode. A discharge port of the collection device is connected with a feed port of the powder variable frequency conveying device in a sealing mode. A powder outlet of the powder variable frequency conveying device is in flexible connection with a powder inlet of a mixing bin. Weight sensors are electrically connected with a control device. The control device can control the ultrafine powder conveying speed of the powder variable frequency conveying device according to weight signals transmitted by the weight sensors. The ultrafine powder pneumatic conveying device is simple in structure and is provided with the powder variable frequency conveying device with a variable frequency motor, so that accuracy control and quantitative continuous conveying are achieved, and loss of materials is reduced.

Description

technical field [0001] The invention relates to the field of powder conveying equipment, in particular to an ultrafine powder pneumatic conveying equipment capable of precisely controlling conveying. Background technique [0002] Ultrafine powder is a fine powder with an average particle size of less than 10 μm, such as titanium dioxide, zinc oxide powder, etc., and is widely used in industrial production. In the actual production process, due to its special material properties, the ultra-fine powder is easy to arch during the flow process, resulting in unsmooth feeding. The ultra-fine powder conveying equipment used by most domestic enterprises is belt type or spiral type, and both of them have their defects. For example, the belt type has requirements for the type of ultra-fine powder and is prone to dust pollution, while the simple The spiral device consumes a lot of energy, and at the same time, the ultrafine powder is easy to stick to the wall of the trough, resulting ...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an ultra-fine powder pneumatic conveying equipment with precise control of conveying, which can precisely control the conveying of ultra-fine powder, which is environmentally friendly and energy-saving, thereby solving the problem that the existing ultra-fine powder pressure conveying device cannot be precisely controlled delivery volume problem

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