The rain in factory area recycle device
Technical field:
The present invention relates to a kind of rain in factory area recycle device.
Background technology:
At present, at the dual mode that disposes of factory's rain drainage system, a kind of is that the rain drainage system is set separately, river or lake near the rainwater of collecting directly is discharged to; Another kind is that rain drainage system and production or living drainage system are built jointly, at the pipe network end catch basin is set, production or sanitary sewage are delivered to the Sewage Disposal processing together with the early-stage rainwater that dams, and most of rainwater and the dirt, the waste water that are blended in the rainwater directly are discharged to neighbouring river or lake.For first kind of mode, dirty, waste water all is sent to Sewage Disposal and handles, can not pollute near river or lake, but also contain the pollutant that produces in certain process of factory production in the rainwater in the early stage, this part pollutant also can pollute near river or lake; For the second way, early-stage rainwater will be sent to Sewage Disposal and handle, can not pollute near river or lake, but in rainstorm process, understand that some dirt, waste water are blended in the rainwater and in the river or lake near directly being discharged to, this part pollutant also can pollute near river or lake.When especially having an accident in factory, environmental hazard is caused in river or lake near large amount of sewage can enter along drainage pipe.China is a poor-water country, and water resource is seriously deficient, and this dual mode all is not used to rainwater resource and has wasted.The present invention aims to provide a kind of device, makes the draining of factory neither pollute near water body, and rainwater resource is used, to alleviate the problem of water resources shortage.
Summary of the invention:
The objective of the invention is to: the device that provides a kind of rain draining to recycle, make the rain draining of factory neither pollute near the water body factory, improve environmental protection standard, rainwater resource is used, save the new water consumption of factory, alleviate the contradiction of water resources shortage.
The present invention constitutes like this: it comprises production waste drainage and rainwater collection conduit 1, and production waste drainage and rainwater collection conduit 1 are connected with rain drainage pipe 3 with balancing tank 7 respectively by catchpit 2; Rain drainage pipe 3 is connected with settling tank 4,4 li of settling tanks rainwater backwater lift pump 5 is arranged, and an end of rainwater water return pipeline 6 is connected with rainwater backwater lift pump 5, and the other end is connected with balancing tank 7; 7 li have lift pump 8 in the balancing tank, and lift pump 8 is connected with sewage treatment equipment 9; 10 li reuse water pump 11 is arranged at reuse pool, reuse water pump 11 is connected with recycle-water pipeline 12.
Sewage treatment equipment 9 is installed between sewerage treatment in 13, and sewerage treatment workshop 13 is faced mutually with balancing tank 7, reuse pool 10, and distance is short more good more.
During rainy season, rainwater enters settling tank 4 by production waste drainage and rainwater collection conduit 1, rain drainage pipe 3 and stores, production waste drainage and a part of early-stage rainwater by catchpit 2, enter balancing tank 7, enter sewage treatment equipment 9 by lift pump 8 again and handle; During dry season, be stored in rainwater in the settling tank 4 and get back in the balancing tank 7 by rainwater backwater lift pump 5, rainwater water return pipeline 6 and production waste drainage enters sewage treatment equipment 9 by lift pump 8 more together and handles, the water after the processing enters reuse pool 10, get back to plant area by reuse water pump 11, recycle-water pipeline 12 uses.
Owing to adopted technique scheme, compared with prior art, the present invention improves the environmental protection standard of factory district, make factory no longer discharge any noxious pollutant near water body, even when having an accident,, can not cause disaster near environment owing to there is settling tank to store harmful water body in factory yet.Simultaneously rainwater is recycled, saved and produce new water consumption, part is alleviated the problem of water resources shortage.The present invention is specially adapted to water resources shortage and the higher area of environmental requirement, and the less demanding arid area of land used.
Description of drawings:
Fig. 1 is structural representation of the present invention, plan view.
The specific embodiment:
Embodiments of the invention: as shown in Figure 1, in factory, be provided with between catchpit 2, balancing tank 7, reuse pool 10, sewerage treatment 13,13 install sewage treatment equipment 9 between sewerage treatment, and its treatment scale considers that according to the production waste drainage amount and the early-stage rainwater amount of damming interception ratio is 2~3; Settling tank 4 is set outside factory, and its volume size is determined according to the amount of precipitation and the evaporation capacity of locality, should guarantee to be stored in the amount of rainfall run-off in 1 year of plant area in the design rainfall recurrence interval, will consider to deduct the evaporated water in 1 year in settling tank surface simultaneously.Settling tank should be provided with the measure of antiseep; Bury production waste drainage and rainwater collection conduit 1 underground in plant area, production waste drainage and rainwater collection conduit 1 are connected with catchpit 2 and are connected with balancing tank 7; One end of rain drainage pipe is connected with catchpit 2, and the other end is connected with settling tank 4; Rainwater backwater lift pump 5 is installed in settling tank 4, an end of rainwater water return pipeline 6 is connected with rainwater backwater lift pump 5, the other end is connected with balancing tank 7; Lift pump 8 is installed in balancing tank 7, lift pump 8 is connected with sewage treatment equipment 9; Install back with water pump 11 10 li of reuse pools, reuse water pump 11 is connected with recycle-water pipeline 12.