Utility model content
Technical problem to be solved in the utility model is to provide a kind of sand filtering device with disinfection function.
In order to solve the problems, such as above-mentioned prior art, this utility model employs the following technical solutions realization：
This utility model sand filtering device, including sandfiltration pot, the sand filtration medium being arranged in sandfiltration pot and with sandfiltration pot connect
Logical backpurge system, is provided with least one set ultraviolet sterilization device inside the sandfiltration pot, be additionally provided with the sandfiltration pot with it is ultraviolet
The power supply that sterilizing unit is connected.Thus, during sandfiltration pot filter sewage, ultraviolet sterilization device is opened, thus, it is possible to right
Ultraviolet-sterilization process is carried out into the sewage inside sandfiltration pot so that the water outlet of sandfiltration pot disclosure satisfy that going out for sewage treatment process
Water water quality requirement, realizes while sterilizing process is carried out to sewage on original filter base, and can be fine
Ground ensures the filter effect of sand filtration medium.
Used as the further improvement of above-mentioned sand filtering device, the ultraviolet sterilization device includes being arranged at the purple inside sandfiltration pot
Outer fluorescent tube and the transparent lamp shade shrouded outside ultraviolet lamp tube.Ultraviolet lamp tube can effectively kill the antibacterial in sewage, thoroughly
Light lampshade ensure that ultraviolet lamp tube is not affected by sewage in sandfiltration pot, on the basis for ensureing translucent effect play isolation
Further, the transparent lamp shade is the shell that quartz material is constituted.Quartz material translucent effect is good, wear-resistant,
Use cost is low.
Used as the further improvement of above-mentioned sand filtering device, the ultraviolet sterilization device hangs and is arranged above sand filtration medium.
Effectively carried out disinfection before sewage water filtration sterilization to sewage, beneficial to the filter effect for ensureing sand filtration medium.
Used as the further improvement of above-mentioned sand filtering device, the ultraviolet sterilization device is fixed on the inwall of sandfiltration pot.By purple
Outer sterilizing unit is arranged at the inwall of sandfiltration pot, prevents ultraviolet sterilization device interference wastewater influent.
Used as the further improvement of above-mentioned sand filtering device, the power supply is fixed on the outer wall of sandfiltration pot.By power supply and sand filtration
Tank is integrated, is arranged on outside more preferably control, and avoids power supply from being affected by water.
Used as the further improvement of above-mentioned sand filtering device, the sand filtration medium is quartz sand.Quartz sand as sand filtration medium,
Little with filtration resistance, specific surface area is big, and resistance to acids and bases is strong, the advantages of resistance tocrocking is good.
As the further improvement of above-mentioned sand filtering device, the sandfiltration pot include tank body, be arranged at it is removable at the top of tank body
Unload formula top cover and water inlet pipe, be arranged at sand filtration medium with the blow-off pipe of upper tank body, be arranged at the outlet pipe of tank base, it is described
Water inlet pipe is provided with water intaking valve, and blow-off pipe is provided with blowoff valve, outlet pipe and is provided with outlet valve.Top cover is detachable, convenience
The installation of ultraviolet sterilization device and the placement and replacement of sand filtration medium inside sandfiltration pot, above-mentioned overall structure realize that sewage is entered
With the output of water purification after sterilizing, filtration.
Further, the tank base is provided with backwash trachea, and the backwash trachea is provided with backwash air valve, institute
State the backwash gas confession that backpurge system is included the backwashing water feedway connected with outlet pipe and connected with backwash trachea
To device.More thoroughly cleaning for tank interior sand filtration medium is thus achieved, improves the filter effect of sand filtration medium.
Further, the sand filtration pot bottom is provided with the Dropbox for propping sand filter medium.Dropbox is played to sand filtration medium
Good supporting role, also so that sewage obtains uniform filtering.
Below by way of accompanying drawing and specific embodiment, the utility model is described in further detail.
Which is elaborated as a example by the application in sewage water filtration below by way of this utility model.
As shown in figure 1, this utility model sand filtering device, including sandfiltration pot 1, the sand filtration medium 4 that is arranged in sandfiltration pot 1 with
And the backpurge system connected with sandfiltration pot 1.The sandfiltration pot 1 include tank body 110, be arranged at it is detachable at the top of tank body 110
Top cover 160 and water inlet pipe 120, it is arranged at sand filtration medium 4 with the blow-off pipe 150 of upper tank body 110, is arranged at 110 bottom of tank body
Outlet pipe 130, be bolted between top cover 160 and tank body 110, the water inlet pipe 120 is provided with water intaking valve 121, row
Dirty pipe 150 is provided with blowoff valve 151, outlet pipe 130 and is provided with outlet valve 131.110 bottom of the tank body is provided with backwash trachea
140, the backwash trachea 140 is provided with backwash air valve 141, and the backpurge system includes anti-with what outlet pipe 130 was connected
Flush water supply device and the backwash gas feedway connected with backwash trachea 140, backwashing water feedway are tank
The recoil operation of body 110 provides backwashing water, and backwash gas feedway provides backwash gas for the recoil operation of tank body 110,
The sand filtration medium 4 is quartz sand, and the two groups of ultraviolet sterilization devices 2 in left and right, the ultraviolet-sterilization dress are provided with inside the sandfiltration pot 1
Putting 2 includes the ultraviolet lamp tube 210 being arranged inside sandfiltration pot 1 and the transparent lamp shade 220 shrouded outside ultraviolet lamp tube 210,
The transparent lamp shade 220 is the shell that quartz material is constituted, if cost conditions can also adopt crystal material in the case of allowing
The shell that material is constituted, the ultraviolet sterilization device 2 hang and are arranged above sand filtration medium 4, and the ultraviolet sterilization device 2 is solid
The power supply 3 being connected with ultraviolet sterilization device 2 is additionally provided with the inwall of sandfiltration pot 1, the sandfiltration pot 1, the power supply 3 is fixed
In the outer wall of sandfiltration pot 1.The sand filtration pot bottom is provided with the Dropbox for propping sand filter medium, and the sand filtration medium 4 passes through water
The flat Dropbox 5 for being arranged at 1 bottom of sandfiltration pot is supported.Wherein preferably the sandfiltration pot 1 is overall and Dropbox therein 5 is not using
Rust Steel material is constituted.
Hereinafter using method of the present utility model is described further：
This utility model sand filtering device is first turned on water intaking valve 121 when filter operation is carried out to sewage so that sewage from
Water inlet pipe 120 is entered inside sandfiltration pot 1, is turned on the power so that ultraviolet sterilization device 2 is opened afterwards, and sewage is in ultraviolet sterilization device
Sterilizing process is obtained in the presence of ultraviolet lamp tube 210 in 2, ultraviolet lamp tube 210 is avoided in the presence of transparent lamp shade 220
Affected by water, the sewage after disinfecting constantly is filtered in 4 quartz sand of sand filtration medium, opens outlet valve afterwards
131, the clear water after above-mentioned sterilizing is filtered is flowed out from outlet pipe 130 through Dropbox 5, and the final clear water for flowing out disclosure satisfy that
The purity requirements after sterilizing and filtration in sewage disposal process.The ultraviolet sterilization device that this utility model is set up
2 not only cause the requirement of sewage purification effluent quality has been reached from 1 water outlet of sandfiltration pot, and cause sand filtering device carrying out sewage
During filtration, periodically to device interior disinfection the bacteria breed in sand filtration medium can be reduced, beneficial to the mistake of follow-up sewage
Filter, coordinates the backwash operation of backpurge system to enable to sand filtering device and keeps original filter effect.Above-mentioned sterilizing, filtration behaviour
After finishing, water intaking valve 121 is closed, open backwash air valve 141, start backpurge system so that backwashing water is by outlet pipe
130 enter sandfiltration pot 1, and backwash gas enter sandfiltration pot 1 by backwash trachea 140, and thus the quartz sand in sandfiltration pot 1 is in recoil
Cleaned under the double rinse of wash water and backwash gas, opened blowoff valve 151, backwashing water clean after quartz sand with
Backwash gas discharge sandfiltration pot 1 via blow-off pipe 150, after system backwash terminates, close backwash air valve 141 and blowoff valve 151,
Backwashing water and backwash gas stop supply, and unnecessary water is flowed out from outlet pipe 130, quartz sand natural sedimentation under gravity
Compacting.What deserves to be explained is, in order to ensure ultraviolet-sterilization effect, periodically need to clear up transparent lamp shade 220, ensured with this
The bactericidal effect of ultraviolet germicidal 210.