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Filter cloth cleaning solution for filter press

A technology for cleaning liquid and filter press, applied in inorganic non-surface-active detergent compositions, non-surface-active detergent compositions, chemical instruments and methods, etc. Workers' labor intensity and other issues, to achieve the effect of extending the service life, increasing the use time, and reducing the production cost

Active Publication Date: 2018-09-07
浙江阳福针织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods cannot thoroughly clean the filter cloth, which not only increases the labor intensity of the workers, but also causes waste of water resources, reduces the service life of the filter cloth, and increases the operating cost of the enterprise.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A filter cloth cleaning solution for a filter press comprises the following parts by weight: iron filings: 1.5 parts, sulfuric acid: 10 parts, ammonium sulfate: 1.0 parts, sodium sulfite: 0.5 parts, sodium hydroxide: 20 parts, builder: 0.3 parts Parts, disodium edetate: 0.3 parts, deionized water: 500 parts.

[0016] The molar concentration of described sulfuric acid is 15%.

[0017] The molar concentration of the sodium hydroxide is 10%.

[0018] The preparation method of filter cloth cleaning liquid of described filter press comprises the following steps:

[0019] (1) First mix the iron filings and 10% sodium hydroxide and place them in the mixer, then start the stirring motor, the stirring speed is 20r / min, and the stirring time is 15min; then filter the stirred material through the sieve.

[0020] (2) Mix the iron filings cleaned in step (1) with 15% sulfuric acid and place them in a mixing tank. The reaction time is 0.5 hours and the reaction temperature is 10°C....

Embodiment 2

[0024] A filter cloth cleaning solution for a filter press comprises the following parts by weight: iron filings: 2.0 parts, sulfuric acid: 15 parts, ammonium sulfate: 3.0 parts, sodium sulfite: 0.6 parts, sodium hydroxide: 22 parts, builder: 0.4 parts Parts, disodium edetate: 0.5 parts, deionized water: 500 parts.

[0025] The molar concentration of described sulfuric acid is 18%.

[0026] The molar concentration of described sodium hydroxide is 15%.

[0027] The preparation method of filter cloth cleaning liquid of described filter press comprises the following steps:

[0028] (1) First mix the iron filings and 15% sodium hydroxide and place them in the mixer, then start the stirring motor, the stirring speed is 22r / min, and the stirring time is 18min; then filter the stirred material through the sieve.

[0029] (2) Mix the iron filings cleaned in step (1) with 18% sulfuric acid and place them in a mixing tank. The reaction time is 1 hour and the reaction temperature is 50...

Embodiment 3

[0033] A filter cloth cleaning solution for a filter press comprises the following parts by weight: iron filings: 3.0 parts, sulfuric acid: 20 parts, ammonium sulfate: 5.0 parts, sodium sulfite: 0.8 parts, sodium hydroxide: 25 parts, builder: 0.5 parts Parts, disodium edetate: 0.7 parts, deionized water: 500 parts.

[0034] The molar concentration of described sulfuric acid is 20%.

[0035] The molar concentration of described sodium hydroxide is 20%.

[0036] The preparation method of filter cloth cleaning liquid of described filter press comprises the following steps:

[0037] (1) First mix the iron filings and 20% sodium hydroxide and place them in the mixer, then start the stirring motor, the stirring speed is 25r / min, and the stirring time is 20min; then filter the stirred material through the sieve.

[0038] (2) Mix the iron filings cleaned in step (1) with 20% sulfuric acid and place them in a mixing tank. The reaction time is 2 hours and the reaction temperature is 8...

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PUM

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Abstract

The invention discloses a filter cloth cleaning solution for a filter press. The filter cloth cleaning solution is prepared from the following components in parts by weight: 1.5-3.0 parts of scrap iron, 10-20 parts of sulfuric acid, 1.0-5.0 parts of ammonium sulfate, 0.5-0.8 part of sodium sulfite, 20-25 parts of sodium hydroxide, 0.3-0.5 part of a builder, 0.3-0.7 part of ethylenediamine tetraacetic acid disodium and 500 parts of deionized water. By the filter cloth cleaning solution for the filter press, detained stains on the surface of the filter cloth of the filter press can be effectively cleaned and treated; and the filter press is prevented from being dismantled and cleaned by operating personnel in a conventional method, so that the service time of the filter press is greatly prolonged; the service lifetime of the filter cloth is prolonged; the work efficiency of the operating personnel is effectively improved; the production cost of an enterprise is reduced; and the economic efficiency of the enterprise is improved.

Description

technical field [0001] The invention relates to a filter cloth cleaning solution for a filter press. Background technique [0002] After the filter cloth is used for a long time, it will easily form the clogging of the filter cloth holes. If it cannot be cleaned effectively, if the time is long, the pores of the filter cloth will be clogged, which will easily cause the accumulation of the mixture, which will directly affect the Filtration effect of filter press equipment. To clean the filter cloth, the filter cloth generally needs to be removed, and then rinsed with a high-pressure water gun, or brushed with a brush. These methods cannot thoroughly clean the filter cloth, which not only increases the labor intensity of the workers, but also causes waste of water resources, reduces the service life of the filter cloth, and increases the operating cost of the enterprise. Contents of the invention [0003] The invention mainly solves the technical problems existing in the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D7/60C11D7/32C11D7/10
CPCC11D7/10C11D7/3245C11D11/0017
Inventor 郑明进
Owner 浙江阳福针织有限公司
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