Novel filter screen cleaning structure

A filter screen, a new type of technology, applied in filtration and separation, moving filter element filters, separation methods, etc., can solve the problems of large fluctuation, poor cleaning effect, low melt cavity pressure, etc., to achieve small pressure fluctuation and cleaning effect. Good, melt stable effect

Active Publication Date: 2014-11-05
GUANGDONG SHICHENG PLASTIC MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a new type of filter screen cleaning structure, which is suitable for disc filters, and aims to solve the technical problems of the traditional filter screen cleaning structure, such as low melt cavity pressure, large fluctuations, and poor cleaning effect

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0017] In order to overcome the technical problems such as large pressure fluctuations, unstable melt temperature inside the melt cavity, and poor cleaning effect of the traditional disc filter cleaning structure, the present invention optimizes the structure of the melt cavity , add a backwash feed valve inside the melt cavity, separate the melt cavity to form a "double cavity" structure, so that the filter cleaning structure does not produce any pressure fluctuations during work, and the inside of the melt cavity The melt temperature is easy to control and the cleaning effect is good. The present invention is described in detail below.

[0018] The invention provides a novel filter screen cleaning structure, which is suitable for disc...

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Abstract

The invention discloses a novel filter screen cleaning structure which is suitable for a disk type filter and comprises an outer shell; one side of the outer shell is provided with a power mechanism, and the interior of the outer shell is provided with a backwash piston connected with the power mechanism; the outer shell is also provided with a melt inlet and a melt outlet, the interior of the outer shell is provided with a discharging piston for opening or closing the melt outlet, the discharging piston is connected with the backwash piston through a connecting shaft, and a melt cavity accommodating a melt is formed between the discharging piston and the backwash piston; the interior of the outer shell is also provided with a backwash feeding valve matched with the action of the backwash piston to control opening and closing of the melt inlet. The internal pressure fluctuation of the melt cavity is small, the melt temperature is easy to control, the cleaning effect is good, an actual production plan is not affected, and the quality of products can be ensured.

Description

technical field [0001] The invention relates to a cleaning structure, in particular to a novel filter screen cleaning structure for a disc filter. Background technique [0002] Disc filter is a kind of mechanical equipment used in PVB production process, and its function is to filter PVB slurry. The disc filter is generally equipped with a filter screen cleaning device to realize automatic cleaning of the internal filter screen. The traditional filter screen cleaning device is generally equipped with a melt (PVB slurry) inlet and a melt outlet. During the filtration process of PVB slurry, a point is separated from the mainstream of PVB slurry and enters the filter screen cleaning device from the melt inlet. Then it is extruded by the piston and ejected from the melt outlet to wash the filter screen to achieve the effect of cleaning the filter screen. [0003] The traditional filter screen cleaning device is generally provided with a melt cavity, and the melt inlet is kept ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D33/48
Inventor 张春华秦志红陈勇白汝佳
Owner GUANGDONG SHICHENG PLASTIC MACHINERY
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