Combined type scraper filtering device for alkyd resin and control method thereof

Abstract

The invention discloses a combined type scraper filtering device for alkyd resin and a control method thereof. The combined type scraper filtering device comprises a blade type filter, a plurality of bag filters, a sludge extracting device and a feeding device, wherein the blade type filter is connected with the bag filters through the pipes; the blade type filter is connected with the sludge extracting device through a slagging pipe; the blade type filter is connected with the feeding device through a feeding pipe; the blade type filter is connected with a storage tank through an output pipe; the sludge extracting device and the feeding device are connected with each other through a backflow pipe. The control method for the combined type scraper filtering device comprises the following steps: starting a conveying pump device and guiding the resin into the blade type filter equipped with a stainless steel screen; primarily filtering the resin by the blade type filter; guiding the resin into the bag filters with built-in bags; and completing and discharging resin. The combined type scraper filtering device has the advantages of wide application space, low slagging volume, capability of extracting the resin from the waste residue, excellent filter residue treating effect, and the like.

Description

【Technical field】 [0001] The invention relates to the technical field of a synthetic resin filter device and its control method, in particular to the technical field of a composite scraper filter device for alkyd resin filtration and its control method. 【Background technique】 [0002] The high-efficiency plate filter is a kind of filter introduced from abroad in the mid-1990s, which uses diatomite as a filter auxiliary material, and a filter plate composed of multi-layer mat-shaped wire mesh interlaced and framed as the main filter means. It is still widely used and is a very good filtering device. However, with the continuous improvement of national environmental protection requirements and the increase of comprehensive production costs, the filter residue, a by-product of high-efficiency plate filters, is a kind of chemical solid waste, and the cost of sending it out is as high as 6,000 yuan / T, and the silicon in the filter residue Nearly half of the resin is adsorbed by ...

AI Technical Summary

Problems solved by technology

However, with the continuous improvement of national environmental protection requirements and the increase of comprehensive production costs, the filter residue, a by-product of high-efficiency plate filters, is a kind of chemical solid waste, and the cost of sending it out is as high as 6,000 yuan / T, and the silicon in the filter residue Nearly half of the resin is adsorbed by diatomaceous earth. According to actual weighing, 1 kg of diatomite can absorb 1 to 1.5 kg of resin, resulting in large economic losses.

Images