Novel high-performance belt pressure filter

Abstract

The invention relates to a novel high-performance belt pressure filter, wherein a main pressure roller is orderly and spirally arranged from low to high in a vertical direction of a plane in a pressure filter area, horizontal position on the top of the previous roller ot two adjacent main pressure roller is higher or equal to the horizontal position at bottom of the next roller; a lower filter belt is overlaied with an upper filter belt to clamp the pressure filter materials so as to make the materials enter the pressure filter area from the main pressure roller at the lowest position; each main pressure roller of the upper filter belt and the lower filter belt in the pressure filter area is wrapped from lower part and leaves from upper part. Because of reasonable arrangement of the pressure rollers, the water produced by extruding the materials during pressure filter process automatically falls into a water catcher below a roller barrel so as to prevent the water reflowing into the extruded or to-be-extruded materials and to greatly increase the dehydration efficiency of the belt pressure filter.

Description

technical field [0001] The invention relates to a belt filter press in the field of dehydration equipment, in particular to a novel high-efficiency belt filter press. Background technique [0002] In industrial and agricultural production such as metallurgy, chemical industry, papermaking, tanning, alcohol sewage treatment, poultry and livestock breeding, and urban catering waste, it is often necessary to separate solid-liquid from associated waste liquid and waste residue, and the lower the moisture content of the waste residue after separation , the treatment of waste residue is also easier, and the comprehensive treatment cost will be lower. Therefore, in various dehydration equipment, due to its continuous and uninterrupted production, simple operation, low operation and maintenance costs, and relatively high solid-liquid separation efficiency, etc. At present, belt filter presses are widely used in the production practice of the above-mentioned industries at home and a...

AI Technical Summary

Problems solved by technology

[0005] 2. The direction in which the filter belt entrains the filter material into the pressure roller is unreasonable

[0006] 3. There are defects in the drive system, and the operation stability and reliability are not high

[0007] 4. The mechanical strength of the roller is not enough, it is easy to crack and break

[0008] 5. The design of the permeable roller is not reasonable enough, and the water outlet efficiency is not high

[0009] 6. The extrusion area of ​​the pair of rollers is too small, and the dehydration of the material is not sufficient

[0010] 7. The angle between the upper and lower filter belts and the horizontal plane is too large, and the feeding is uneven

[0012] 9. The thickness of the adhesive layer of the pressure roller and the driving roller is not enough

The thickness of the rubber layer on the outer surface of the pressure roller and the driving roller of the existing belt filter press is generally between 5-6mm. Because the rubber is too thin, the surface of the roller is very hard and the elasticity is small, and the contact surface with the filter belt cannot be formed. The "engagement" depth is not enough, so the friction between the filter belt and the filter belt will be relatively small. When the tension of the filter belt is increased in order to improve the dehydration efficiency of the belt filter press, the driving roller must bear a relatively large load. The filter belt tends to slip, which causes the filter belt to be out of sync, and the belt filter cannot be dehydrated normally

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