Powdered activated carbon rinsing method and equipment thereof

Abstract

The invention discloses a powdered activated carbon rinsing method and equipment thereof. A plurality of layers of alternatively arranged annular carbon channels and filtrate channels are formed in rinsing equipment; the carbon channels are formed by superposing multiple inverted trapezoids and have the width of 0.3-0.4m and the depth of 1.5-2m; the filtrate channels are formed by superposing multiple inverted trapezoids and have the width of 0.1-0.15m; filtering pore plates and filtering nets are arranged between the two channels; a bottom surface and two vertical faces serving as filtering surfaces are arranged on each carbon channel; and the filtering area of a carbon-water mixture is large. The method comprises the following steps: rinsing to-be-rinsed powdered carbon in the multiple layers of annular carbon channels, stirring and rinsing the carbon-water mixture for proper time by using compressed air, filtering the carbon-water mixture through the filtering nets and the filtering pore plates between the carbon channels and the filtrate channels, adding water into the rinsing equipment to perform repeated rinsing and filtering operations until the impurity content of the carbon meets the requirements; and finally, conveying the last rinsed carbon-water mixture into a filter press to perform filter pressing by using a mud pump.

Description

1. Technical field [0001] The invention relates to a method and equipment for rinsing semi-finished products in the production process of activated carbon, in particular to a method and equipment for rinsing powdered activated carbon. 2. Technical Background [0002] Powdered activated carbon is widely used in chemical, dye, pharmaceutical, food, environmental protection and other fields. With the rapid development of my country's economy and the improvement of people's living standards, the amount of activated carbon is increasing. In order to protect the environment, it is required to The waste powdery activated carbon is regenerated and utilized, and the powdery regenerated activated carbon product is usually made by heating regeneration method. During the preparation process, it is required to go through pickling and multiple water washing processes to reduce its impurity content. Rinse and filter again until the impurity content and PH value of the carbon meet the require...

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Problems solved by technology

[0002] Powdered activated carbon is widely used in chemical, dye, pharmaceutical, food, environmental protection and other fields. With the rapid development of my country's economy and the improvement of people's living standards, the amount of activated carbon is increasing. In order to protect the environment, it is required to The waste powdery activated carbon is regenerated and utilized, and the powdery regenerated activated carbon product is usually made by heating regeneration method. During the preparation process, it is required to go through pickling and multiple water washing processes to reduce its impurity content. Rinse and filter again until the impurity content and PH value of the carbon meet the requirements. Because the particles of powdered activated carbon are relatively fine, usually above 120 mesh, using ordinary filtration methods, the filtration speed is relatively slow, which affects the output of the rinsing process, such as The patent application number is 200820138328.X, a kind of activated carbon rinsing equipment, which is characterized in that the material to be washed is placed in the rinsing tank, rinsed with water and then filtered, and the material is discharged manually from the discharge port at the bottom of the side of the rinsing tank, which is labor-intensive. low production efficiency

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