CN201135806Y - Multi-way multi-layer back washing sand purification apparatus - Google Patents

Abstract

Disclosed is a multi-direction and multi-layer back washing sand filter, which relates to an environmental protection device, in particular to a sewage processing device. The sewage processing device is composed of an outer casing, a water inlet pipe, a water outlet pipe and a filtering material, the sewage processing device is characterized in that a vortex flowing head is installed at the top end of the water inlet pipe, a water distribution device is installed on the layer in the outer casing, the water distribution device is formed by welding a water distribution pipe and a branch pipe, a distribution water head is installed on the branch pipe, and an oil outlet is installed at the top end of the shell. By adopting the filtering device, the pollution to the filtering material caused by oily soil can be reduced, and the service life of the filtering device can be prolonged. When the filtering device is required to be washed, the valve of a water source is opened, through the pressure of the water source, the inner part of the filtering material can be loosened and inflated, the filtering material is convenient for being cleaned, and the cleaning efficiency is enhanced. The filtering device can improve the filtrating effect, and improve the sewage processing level. The filtering device is particularly suitable for oil containing sewage process.

Description

Multidirectional multilayer backwash sand filter

Technical field

The utility model relates to a kind of environmental protection equipment, is a kind of sewage-treatment plant.

Background technology

In process of oil production, just can reach discharge standard after having many oil-polluted waters to handle, still use the quartz sand filtration device at present mostly in the production scene, being about to cobblestone, magnetic iron ore and the different quartz sand layering of thickness particle diameter directly is contained in the shell of tubular, make effluent stream out-of-date, dirt is stopped by quartz sand, and water is passed through, can sewage disposal is clean.This filter life cycle is short, just needs after a period of time to clean once, and the dirt removal of staying in the filter is fallen, and could continue to dispose of sewage.And the filtrate of this filter hardens easily, promptly dirt easily and filtrate bond together, very difficult dirt removal is fallen by cleaning, the regeneration effect of filtrate is bad, filter effect is just very poor when re-using it and disposing of sewage.And adopt general backwash mode when cleaning, filtrate is washed out easily, therefore will constantly add filtrate.Though also have the water treatment facilities of some other type, be difficult at the scene using because of there is defectives different in each in it.

The utility model content

The purpose of this utility model provides a kind of simple in structure, easy to operate multidirectional multilayer backwash sand filter, uses this filter process sewage effective, and its work period is longer.

The utility model technical solution is to realize like this, a kind of multidirectional multilayer backwash sand filter, constitute by shell and the water inlet pipe and the outlet pipe that are installed on the shell, filtrate is housed in the enclosure, and its special character is, in the upper end of water inlet pipe the vortex flow head is installed, layering in the enclosure is equipped with water-distributing device, water-distributing device is welded together by water distributor and arm and constitutes, and water distribution head is installed on arm, has narrow slot longitudinally on the water outlet screen casing that install bottom in the enclosure.Upper end at shell is equipped with oil drain out.

In above-mentioned technical solution, its special character also is, is welded with 2-20 vortex tube on the vortex flow head, becomes 180 degree between per two corresponding vortex tubes, and it is opposite that it curves direction.

In above-mentioned technical solution, its special character also is to be equipped with in the enclosure 1-10 layer water-distributing device.

In above-mentioned technical solution, its special character also is to be welded on the water distributor by 4-20 root arm at water-distributing device and constitutes, and is interconnected between them, and 4-30 water distribution head is housed on each arm, and becomes 10 degree-60 degree angles between the adjacent water distribution head.

Usefulness of the present utility model is, (1) in the upper end of water inlet pipe the vortex flow head is installed, sewage flows out from the vortex flow pipe, generation rotatablely moves, be convenient to make oil in the sewage and moisture from, isolated oil can be discharged from oil drain out, reduces the pollution of oil to filtrate, can prolong the service life of filter.(2) layering is equipped with water-distributing device in the enclosure, and every layer of water-distributing device is connected with the water source, when the needs filter rinsed, opens the water source respectively, and the pressure by the water source can make the filtrate internal loose expand, and is convenient to filtrate is cleaned up, and improves cleaning efficiency.(3) because to have minimum widith on the water outlet screen casing be 0.1 millimeter slit, filtrate can be selected the sand than fine grain for use, so this filter can improve filter effect, improves the sewage disposal level.(4) this apparatus structure is simple, and using method is the same basically, easy to operate with existing filter.

Description of drawings

Fig. 1 is a cross-sectional view of the present utility model.

Fig. 2 is the vertical view of vortex flow head.

Fig. 3 is that water distribution head is installed in the side view of (among Fig. 1) on the arm.

Fig. 4 is the attached view of water-distributing device.

The specific embodiment

Be welded with going to the bottom of circular arc in columniform shell 3 lower ends, be welded with outlet pipe 6 and leg 7 on going to the bottom, the bottom in shell 3 fixedly is welded with base plate 8, is evenly equipped with through hole on the base plate.Evenly be processed with longitudinal slot on semicircular water outlet screen casing 5,0.3 millimeter of gap width (this slit generally can be the 0.05-1.0 millimeter) is fixedly welded on water outlet screen casing 5 on the base plate 8.On each water distribution head, be evenly equipped with longitudinal slot, 0.3 millimeter of gap width (this slit generally also can be the 0.05-1.0 millimeter), each water distribution head is fixedly welded on the arm 15 by short tube, water distribution head 12,16 is welded on directly over the arm arm, water distribution head 13 takes over 60 °, water distribution head 14 is taken back 60 °, each water distribution head separation approximately equates (generally can be the 50-300 millimeter), each water distribution head and arm are connected, each arm is welded on the water distributor 17, and and water distributor be connected, form one deck water-distributing device 4.3 layers of water-distributing device are installed in the present embodiment, are fixed in the shell 3, the water distributor 17 on every layer of water-distributing device is connected by flange, valve and water source.Water inlet pipe 2 is fixedly mounted on the top of shell 3, the inner upwards bends up, pipe end is plugged, be welded with vortex flow head 9 in the top, vortex flow head 9 is welded on the vertical tube relatively by 2 vortex flow pipes 11 with camber and constitutes, it curves direction opposite (2-20 vortex flow pipe generally can be arranged on the vortex flow head), and vortex flow head 9 is connected by vertical tube and water inlet pipe 2.Layering is from bottom to top packed particle diameter into greater than 0.3 millimeter fine sand, coarse sand in shell 3, in the upper end of shell 3 upper end cover with arc is installed, and is welded with the oil drain out 1 that is made of short tube and flange on upper end cover.

Claims (5)

1, a kind of multidirectional multilayer backwash sand filter, by shell (3) be installed in water inlet pipe (2) on the shell (3) and outlet pipe (6) constitutes, in shell (3), filtrate is housed, it is characterized in that, in the upper end of water inlet pipe (2) vortex flow head (9) is installed, layering in the enclosure is equipped with water-distributing device (4), water-distributing device (4) welds together formation by water distributor (17) and arm (15), water distribution head (12 is installed on arm, 13,14,16), have narrow slot longitudinally on the bottom water outlet screen casing (5) in shell (3), oil drain out (1) is installed in the upper end of shell (3).

2, multidirectional multilayer backwash sand filter according to claim 1 is characterized in that, is welded with 2-20 vortex tube (11) on the vortex flow head (9), becomes 180 degree between per two corresponding vortex tubes (11), and it is opposite that it curves direction.

3, multidirectional multilayer backwash sand filter according to claim 1 and 2 is characterized in that, 1-10 layer water-distributing device (4) is installed in shell (3).

4, multidirectional multilayer backwash sand filter according to claim 1 and 2, it is characterized in that, water-distributing device (4) is welded on water distributor (17) by 4-20 root arm (15) and goes up formation, be interconnected between them, 4-30 water distribution head is housed on the every arm, and becomes 10 degree-60 degree angles between the adjacent water distribution head.

5, multidirectional multilayer backwash sand filter according to claim 3, it is characterized in that, being welded on water distributor (17) at water-distributing device (4) by 4-20 root arm (15) constitutes, be interconnected between them, 4-30 water distribution head is housed on the every arm, and becomes 10 degree-60 degree angles between the adjacent water distribution head.

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