CN212854935U - Three-stage filtration sedimentation tank for assembly type construction sewage - Google Patents

Abstract

The utility model discloses an assembly type construction sewage three-stage filtration sedimentation tank, which consists of three rectangular stainless steel filter screens and a box body; the rectangular stainless steel filter screens are vertically arranged and are all formed by clamping filtering materials by stainless steel wire meshes, and the box body is divided into a first pool, a second pool, a third pool and a fourth pool; the stainless steel wire net on the right side of the first pool is filled with artificial sand, the stainless steel wire net on the right side of the second pool is filled with activated carbon, and 2-3 layers of polymer fiber filter cotton are sandwiched in the stainless steel wire net on the right side of the third pool. The utility model solves the defects that the construction and the use of the prior brick-laying and steel plate-welding three-level sedimentation tank are time-consuming and labor-consuming, uneconomical and environmentally-friendly; and the sewage enters the fourth sedimentation tank after being filtered by the three sedimentation tanks, and is discharged through the overflow gap, so that the three-stage filtration and purification of the sewage are realized.

Description

Three-stage filtration sedimentation tank for assembly type construction sewage

Technical Field

The utility model relates to a tertiary sedimentation tank of assembled in the construction project construction field, the construction project job site construction sewage treatment system of specifically being applicable to.

Background

At present, the construction site sewage treatment generally adopts a brick-built three-level sedimentation tank or a steel plate-welded three-level sedimentation tank without any filtering device, suspended matters and various impurities in water are only settled down along with the lapse of time in the sedimentation tank, and chemical harmful substances in the sewage continuously flow out. This kind of brick or steel sheet welded tertiary sedimentation tank is not only time-consuming and labor-consuming, still probably because of the improper production seepage of being under construction, influences all ring edge borders, clears up the sediment moreover and takes time-consuming and labor-consuming, and the abandonment promptly is done up to the use, can not retrieve reuse, does not satisfy the requirement of environmental protection saving.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an assembly type construction sewage three-stage filtration sedimentation tank, which consists of three rectangular stainless steel filter screens and a box body; the rectangular stainless steel filter screens are vertically arranged and are all formed by clamping filtering materials by stainless steel wire meshes, and the box body is divided into a first pool, a second pool, a third pool and a fourth pool; artificial sand is filled in the stainless steel wire mesh on the right side of the first tank and is used for primarily filtering impurities, suspended matters and silt in the sewage; activated carbon is filled in the stainless steel wire mesh on the right side of the second tank and is used for filtering free matters, microorganisms and partial heavy metal ions in water and effectively reducing the chroma of the water; 2-3 layers of polymer fiber filter cotton are clamped in the stainless steel wire net on the right side of the third filter tank to filter the micro-particle suspended matters which are not filtered in the first filter tank and the second filter tank; the fourth tank is a clean water tank which can be directly recycled or discharged after being filtered; the upper part of the left side of the first pool is provided with a water inlet, and the right side of the fourth pool is provided with a water outlet.

Preferably, the thickness of the cuboid stainless steel filter screen filled artificial sand on the first right side of the tank is 100 mm, and the thickness of the stainless steel filter screen filled active carbon on the second right side of the tank is 50 mm.

The utility model solves the defects that the construction and the use of the prior brick-laying and steel plate-welding three-level sedimentation tank are time-consuming and labor-consuming, uneconomical and environmentally-friendly; and the sewage enters the fourth sedimentation tank after being filtered by the three sedimentation tanks, and is discharged through the overflow gap, so that the three-stage filtration and purification of the sewage are realized.

Drawings

The following further description is made with reference to the accompanying drawings and detailed description:

fig. 1 is a sectional view of the fabricated construction sewage three-stage filtration sedimentation tank of the embodiment of the utility model.

Fig. 2 is a physical diagram of various selected materials.

In the figure, 2-pool I, 3-pool II, 4-pool III, 5-pool IV, 1-water inlet, 6-water outlet, 7-artificial sand filter layer, 8-activated carbon filter layer and 9-polymer fiber filter layer.

Detailed Description

Example 1

As shown in fig. 1 and 2, the utility model discloses an assembled construction sewage tertiary filtration sedimentation tank comprises three cuboid stainless steel filter screen and a box, is impurity, suspended solid, silt etc. in the pond stainless steel wire net inside packing artificial sand primary filtration sewage respectively. Activated carbon is filled in the stainless steel wire mesh of the second pool and is used for filtering free objects, microorganisms and partial heavy metal ions in water and effectively reducing the chroma of the water. 2-3 layers of polymer fiber filter cotton are clamped in the stainless steel wire mesh of the third tank to filter the micro-particle suspended matters which are not filtered in the first tank and the second tank of the filter. The fourth tank is a clean water tank which can be directly recycled (can be used for concrete mixing water, watering cars, building maintenance, garden watering and the like) or discharged after being filtered. Adjacent side surfaces among the four pools are formed by stainless steel wire mesh clamping filter materials with the diameter of 2mm, sewage enters the fourth pool after being filtered by the three previous sedimentation pools, and finally is discharged through the overflow gap, so that the three-stage filtration and purification of the sewage are realized.

The unit in fig. 1 is in cm.

The particle size of the artificial sand is 3-7 mm; the meshes of the stainless steel wire mesh are 10 meshes, 0.8 mm thick wires and 2mm meshes; the activated carbon can be selected from columnar 1.5MM, 4.0MM, 6.0MM, 8.0MM or coal granule or coconut shell 4-8MM, 1-2MM or fruit shell 1-2MM or powdered carbon.

The utility model discloses construction and maintenance method of assembled construction sewage tertiary filtration sedimentation tank:

1. carrying out earth excavation according to the size of the box body; cleaning the once trapped substance for 15-30 days for 90 days or flowing water 10000m³The filter screen and the filler in the filter screen are replaced once.

2. And pouring a plain concrete cushion layer, wherein the size of the cushion layer is slightly larger than that of the box body.

3. Firstly, a box body is installed to be communicated with a water inlet and a water outlet, and then a pool I, a pool II and a pool III are respectively installed according to the position relation of a design drawing.

4. The first pool is a water inlet, and the fourth pool is a water outlet.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. An assembled construction sewage three-stage filtration sedimentation tank is characterized by comprising three rectangular stainless steel filter screens and a box body; the rectangular stainless steel filter screens are vertically arranged and are all formed by clamping filtering materials by stainless steel wire meshes, and the box body is divided into a first pool, a second pool, a third pool and a fourth pool; artificial sand is filled in the stainless steel wire mesh on the right side of the first tank and is used for primarily filtering impurities, suspended matters and silt in the sewage; activated carbon is filled in the stainless steel wire mesh on the right side of the second tank and is used for filtering free matters, microorganisms and partial heavy metal ions in water and effectively reducing the chroma of the water; 2-3 layers of polymer fiber filter cotton are clamped in the stainless steel wire net on the right side of the third filter tank to filter the micro-particle suspended matters which are not filtered in the first filter tank and the second filter tank; the fourth tank is a clean water tank which can be directly recycled or discharged after being filtered; the upper part of the left side of the first pool is provided with a water inlet, and the right side of the fourth pool is provided with a water outlet.

2. The fabricated construction sewage three-stage filtering and settling tank of claim 1, wherein the thickness of the rectangular stainless steel filter screen filled with the artificial sand on the first right side of the tank is 100 mm, and the thickness of the stainless steel filter screen filled with the activated carbon on the second right side of the tank is 50 mm.

Images