Filter press filter plate for ethylene glycol recovery

A filter press filter plate, ethylene glycol technology, applied in the field of filter press filter plate, can solve the problems of poor filter cake block effect, large shock force, deformation of filter press plate, etc., to achieve long service life and improve recovery. The effect of small rate and motion range

Active Publication Date: 2021-07-02
湖北山特莱新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this application, the filter press plate is shaken to drop the fragments on the filter press plate. The effect on the filter cake with high viscosity is poor, and a large vibration force is required, which may cause deformation of the filter press plate

Method used

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  • Filter press filter plate for ethylene glycol recovery
  • Filter press filter plate for ethylene glycol recovery
  • Filter press filter plate for ethylene glycol recovery

Examples

Experimental program
Comparison scheme
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Embodiment

[0033] Example: Filtering plate for ethylene glycol recovery, such as Figure 1-2 As shown, the filter plate 1 and the pressure plate 2, the filter plate 1, and the pressure plate 2 are formed into a group, and when the two are fitted, the filter plate 1 and the pressure plate 2 form a filter chamber. The filter plate 1 includes a filter surface 101, and the filter surface 101 has a sealed edge 102 having a thickness of the filter surface 101, and the filter surface 101 is detachably connected to the filter cloth 3, and the filter surface 101 and the filter cloth 3 are provided. On the plate 4, the push plate 4 slides on the filter plate 1, and a plurality of projections 103 are provided on the filter surface 101, and the push plate 4 is provided with a through hole two embedded in the tape, and the thickness of the push plate 4 is less than convex. The height of 103, the projection 103 can support the filter cloth 3 to support, and the recess between the projections 103 can bring ...

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PUM

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Abstract

The invention relates to the technical field of filter presses, and discloses a filter press filter plate for ethylene glycol recovery. The filter press filter plate comprises a filter plate and a pressing plate, the filter plate comprises a filter surface, a sealing edge I for framing the filter surface, and filter cloth detachably connected outside the filter surface, a push plate is arranged between the filter surface and the filter cloth, the push plate is slidably connected to the filter plate, and a driving assembly is arranged in the filter plate; and the pressing plate comprises a core plate, a second sealing edge for framing the core plate and a partition plate fixed outside the core plate, a cavity is formed between the partition plate and the core plate, a flexible diaphragm is arranged on the partition plate, and a first air channel is formed in the second sealing edge. The filter press filter plate has the following advantages and effects that after ethylene glycol liquid is pressurized in the filter cavity, ethylene glycol and solid impurities are separated through the filter cloth on the filter plate, ethylene glycol recovery is achieved, a flexible diaphragm is arranged on the pressing plate, when the pressing plate is inflated, the flexible diaphragm can extrude a filter cake in the filter cavity, ethylene glycol is further removed from the filter cake, the recovery rate of ethylene glycol is increased, and the ethylene glycol recovery rate is improved.

Description

Technical field [0001] The present invention relates to the field of filtering machines, and in particular, to a filter plate plate for ethylene glycol recovery. Background technique [0002] In the process of preparing a water-soluble polyester slurry, a large amount of ethylene glycol is used as a solvent, and the ethylene glycol produced by the produced polyester waste water is subjected to a fractionater, cooled the distillate, and the coolant, the solid impurities and The treatment of distilled ethylene glycol can be obtained to obtain colorless liquor. Solid-state impurities in ethylene glycol generally include esterification polymerization to produce floc, solid high polymer, etc., the viscosity is large, easy to stick to the filter cloth, need to be artificially cleared, the filter cloth clearance is not clean The filter cake contains high water, lowering the recovery of ethylene glycol; even causes damage to the filter cloth, and it needs to be repaired, which seriously ...

Claims

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Application Information

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IPC IPC(8): B01D25/12C07C29/76C07C31/20
CPCB01D25/12C07C29/76C07C31/202
Inventor 陈春华周重旭丁成城
Owner 湖北山特莱新材料有限公司
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