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Sand filter system

A technology of sand filter and sand filter tank, applied in the field of sand filter system, can solve the problems of short filtering time, unsatisfactory filtering effect, low utilization rate of filter layer, etc., and achieve good filtering effect.

Inactive Publication Date: 2014-01-15
KUNSHAN SHENGXING EQUIP INSTALLATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing sand filter devices generally use one-time filtration, which has a low utilization rate of the filter layer, and the filtration time is short, and the filtration effect is not ideal

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 1 It is a structural schematic diagram of the sand filtration system of this embodiment. As shown in the figure, the sand filter system includes a sand filter tank 100, the upper part of the sand filter tank 100 is provided with a positive washing inlet 101 and a backwash outlet 104, the lower part of the sand filter tank 100 is provided with a backwash inlet 103, and the bottom is opened There is a positive washing outlet 102 . The filter layers in the sand filter tank 100 are anthracite layer 107 , quartz sand layer 106 , and garnet layer 105 sequentially from top to bottom. The thickness of the garnet layer 105 is 25 cm, the thickness of the quartz sand layer 106 is 25 cm, and the thickness of the anthracite layer 107 is 100 cm.

[0034] The top of the sand filter tank 100 is provided with an exhaust port 108 and a viewing port 109 for manually observing the internal conditions of the sand filter tank 100 . A sewage outlet 110 for discharging sewage is open...

Embodiment 2

[0039] figure 2 It is a schematic diagram of the structure of the sand filter system of this embodiment. As shown in the figure, the basic structure of the sand filter system is the same as that of Embodiment 1, including a sand filter tank 100. The upper part of the sand filter tank 100 is provided with a positive washing inlet 101 and A backwash outlet 104, a backwash inlet 103 is opened at the bottom of the sand filter tank 100, and a positive wash outlet 102 is opened at the bottom. The positive washing inlet 101 is connected to the water inlet pipeline 200; the positive washing outlet 102 is connected to the backwashing inlet 103 through a transition pipeline 300, and the transition pipeline 300 is provided with a first valve 400; the backwash outlet 104 is connected to the water outlet pipeline 500, and the water outlet pipe A second valve 600 is provided on the road 500 .

[0040] The difference from Embodiment 1 is that the water inlet pipeline 200 of this embodiment...

Embodiment 3

[0042] image 3 It is a structural schematic diagram of the sand filter system of this embodiment. As shown in the figure, the basic structure of the sand filter system is the same as that of Embodiment 2, including a sand filter tank 100. The upper part of the sand filter tank 100 is provided with a positive washing inlet 101 and A backwash outlet 104, a backwash inlet 103 is opened at the bottom of the sand filter tank 100, and a positive wash outlet 102 is opened at the bottom. The positive washing inlet 101 is connected to the water inlet pipeline 200; the positive washing outlet 102 is connected to the backwashing inlet 103 through a transition pipeline 300, and the transition pipeline 300 is provided with a first valve 400; the backwash outlet 104 is connected to the water outlet pipeline 500, and the water outlet pipe A second valve 600 is provided on the road 500 . The water inlet pipeline 200 extends into the sand filter tank 100 through the positive washing inlet 10...

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Abstract

The invention discloses a sand filter system which is designed for solving the problems about poor filtering effect of a conventional sand filter device and the like, and comprises a sand filter tank, wherein a conventional flushing inlet and a back flushing outlet are formed in the upper part of the sand filter tank; a conventional flushing outlet and a back flushing inlet are formed in the lower part of the sand filter tank; the conventional flushing inlet is connected with a water inlet pipe; the conventional flushing outlet is connected with the back flushing inlet through a transition pipe; a first valve is arranged on the transition pipe; the back flushing outlet is connected with a water outlet pipe; a second valve is arranged on the water outlet pipe. Since the sand filter system filters water for two times through conventional flushing and back flushing, the filtering effect is good.

Description

technical field [0001] The invention relates to a sand filter system. Background technique [0002] Sand filtration is a water filtration process that uses natural quartz sand, usually manganese sand and anthracite as filter materials. The sand particle size is generally 0.5-1.2mm, and the unevenness coefficient is 2. It is often used for feed water treatment after clarification (sedimentation) treatment or advanced treatment of sewage after secondary treatment. According to the requirements of raw water and effluent water quality, it can have different filter layer thickness and filtration speed. The main function is to intercept the macromolecular solid particles and colloids in the water to make the water clear. Manganese sand can remove iron ions in water. [0003] Existing sand filter devices generally perform one-time filtration, which has a low utilization rate of the filter layer, short filtration time, and unsatisfactory filtration effect. Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D24/10B01D24/46
Inventor 沈卫忠高德夫
Owner KUNSHAN SHENGXING EQUIP INSTALLATION
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