A filter and squeeze drying unit for easy-to-filter materials

Abstract

The invention discloses a filtering and squeezing unit for filterable materials. The filtering and squeezing unit comprises a distribution pipe (17), which is connected to one or more filtering and squeezing machines (18) through feed valves (13). The filtering and squeezing machine comprises a barrel (8), the upper end of which is connected to the feed valve (13) and the lower end of which is provided with a discharge valve (1). An irregular-shaped filter pipe (9) is arranged inside each barrel (8). A positive blow valve (12) is disposed between the feed valve (13) and the barrel (8). The lower part of the barrel (8) is provided with a back-blow outlet valve (2). According to the invention, multiple materials can be filtered and squeezed at the same time, and the operation is carried out under airtight condition. In addition, filtering effect is good, squeezing efficiency is high, filter cakes can be continuously produced, and the operation can be effectively combined with production activities.

Description

technical field [0001] The invention relates to a treatment device for easy-to-filter materials, in particular to a filter and squeeze drying unit for easy-to-filter materials. Background technique [0002] Filterable material refers to the specific resistance of the filter cake formed by filtration in the solution β<10 15 (1 / m 2 ), the particles are rigid, and the filter cake is formed to be more than 30mm and is incompressible. In most production processes, fast solid-liquid separation is required, and a filter cake with higher dryness is required. At present, there are many filtration devices on the market, and the filtration of such slurry is mostly completed by plate and frame filter presses, centrifuges, presses and other equipment, and the filtration is quite troublesome. It brings great inconvenience to production; and most of these devices need to spend a lot of labor and high cost to maintain, and they are all open work, which brings very unfavorable factors t...

AI Technical Summary

Problems solved by technology

At present, there are many filtration devices on the market, and the filtration of such slurry is mostly completed by equipment such as plate and frame filter presses, centrifuges, presses, etc., and the filtration is quite troublesome. It brings great inconvenience to production; and most of these devices need to spend a lot of labor and high cost to maintain, and they are all open work, which brings very unfavorable factors to safe production and clean production; there are also Although many simple bag filter devices are airtight production, most of the bag filter cake unloading is manually operated and the filter cake degree is very low; it cannot meet the needs of production well

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