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On-line regeneration method for sand tank

A sand tank and filter tank technology, which is applied in the maintenance field of pretreatment equipment, can solve the problems of inconvenient handling, high cost, and invisible filter layer, etc., and achieve the effect of convenient observation and avoiding difficult processing.

Active Publication Date: 2019-12-13
SHANGHAI FENGXIN ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] (1) Only applicable to small water plants;
[0005] (2) The filter layer cannot be seen during operation;
[0006] (3) The sand discharge port is small and the sand discharge is inconvenient;
[0007] (4) The equipment is generally small and the water volume is limited;
[0008] (5) It takes time and effort to change the filter material
Fully-sealed pressure vessels are not suitable for making too large, inconvenient to carry, and the cost is relatively high

Method used

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  • On-line regeneration method for sand tank
  • On-line regeneration method for sand tank

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Embodiment Construction

[0048] Such as figure 1 As shown, this embodiment provides a pressure filter tank, the pressure filter tank includes a pressure filter tank body and a cleaning liquid assembly;

[0049] The pressure filter body is the structure and shape of a commercially available pressure filter, and the focus of this embodiment is the transformation of this type of conventional pressure filter;

[0050] The top of the pressure filter body has an upper manhole, and the bottom has a lower manhole and an outlet hole;

[0051] The lower manhole is a structure that can be opened and closed, and is fixedly arranged between the outlet hole and the pressure filter tank body;

[0052] The top of the pressure filter body also has two lifting lugs, and the main part of the equipment can be opened by applying force upward to the two lifting lugs;

[0053] The left side of the pressure filter body has a water inlet on the top and a discharge hole on the bottom;

[0054] The entire structure of the pr...

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Abstract

The invention provides an on-line regeneration method for a sand tank, and the on-line regeneration method is characterized by comprising the following steps of: S1, performing at least one cycle cleaning on sand in the sand tank by adopting a cleaning agent I; S2, adoptingthecleaning agent I to soak and clean the sand in the sand tank at least once; and S3, cleaning the sand in the sand tank withwater; wherein the cleaning agent I comprises at least two acids. The method can realize on-line cleaning without frequent canning.

Description

technical field [0001] The invention belongs to the field of maintenance of pretreatment equipment, and in particular relates to an online regeneration method for sand tanks. Background technique [0002] In the water treatment process, pretreatment is an extremely important link, and the filtration link is generally one of the indispensable conditions in the water treatment process. Generally, the filter container is an ordinary fast filter, a double valve filter, a multi-layer filter, a siphon filter, a valveless filter, a mobile cover filter, a pressure filter, a microfilter, a valve filter, etc. Among them, the pressure filter tank is easy to move, easy to mount, slow down and settle, and the water quality is good, so it is most widely used in small water stations. [0003] The disadvantages of existing processing technologies are as follows: [0004] (1) Only applicable to small water plants; [0005] (2) The filter layer cannot be seen during operation; [0006] (3...

Claims

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Application Information

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IPC IPC(8): B01D24/46C11D7/60C11D7/08C11D7/26C11D11/00
CPCB01D24/46C11D7/08C11D7/265C11D2111/24
Inventor 张金山夏志先
Owner SHANGHAI FENGXIN ENVIRONMENTAL PROTECTION TECH
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