CN104150630B - A kind of heavy metal chelating machine - Google Patents
A kind of heavy metal chelating machine Download PDFInfo
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- CN104150630B CN104150630B CN201410411193.XA CN201410411193A CN104150630B CN 104150630 B CN104150630 B CN 104150630B CN 201410411193 A CN201410411193 A CN 201410411193A CN 104150630 B CN104150630 B CN 104150630B
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Abstract
The invention provides a kind of heavy metal chelating machine, comprise recycle pump, the water outlet of recycle pump is connected with membrane module by waste pipe, the inlet channel of membrane module is connected with inlet pipe, the bottom of membrane module is provided with the Graceful mouth of a river, the top of membrane module is provided with concentrated solution outlet, the concentrated solution outlet of membrane module is connected with catcher by concentrated solution pipeline, the top of catcher is provided with overflow box outlet, the overflow box outlet at the top of catcher is connected with wastewater disposal basin by overflow spout, the middle part of catcher is provided with water outlet, the water outlet at the middle part of catcher is connected with the inlet channel of recycle pump by being separated fresh water pipeline, the bottom of catcher is provided with sewage draining exit, sewage draining exit is connected with sludge concentrating pot by blow-off line, sludge concentrating pot is connected with pressure filter by filter pressing pump, the filtrate outlet of pressure filter is connected with wastewater disposal basin by filtrate conduit, it is little that the present invention has floor space, simple to operate, level of automation is high, working efficiency is high, long service life, the advantage that cost is low.
Description
Technical field
The invention belongs to water treatment field of Environment Protection, be specifically related to a kind of heavy metal chelating machine.
Background technology
Heavy metal refers to the metal of relative density more than 5, comprises copper, lead, zinc, tin, nickel, cobalt, antimony, mercury, cadmium and bismuth 10 kinds of metals.They are present in environment with simple substance, chemical combination state form, and move in the environment, accumulate and just define heavy metal contamination.Heavy metal contamination is mainly manifested in the contaminated wastewater containing heavy metal.Mechanical workout, mining, chemical industry, iron and steel and non-ferrous metal metallurgy etc. are all the main sources of heavy metal wastewater thereby.In recent years, along with rapid industrial development, waste water discharges in a large number, and water source and heavy metal in soil accumulation aggravation, its heavy metal contamination caused is more and more serious.Because the kind of heavy metal wastewater thereby is different, all there is larger difference in Pollutant levels, other impurity concentration and solution medium, these factors add the difficulty of heavy metal containing wastewater treatment.The method of conventional process heavy metal wastewater thereby has the precipitator method, physico-chemical processes, electrochemical process and biochemical process etc., and these method process heavy metal wastewater therebies are difficult to obtain desirable effect.Just current, technique such as Fig. 1 that heavy metal containing wastewater treatment is commonly used is " chemical method+coagulation sloping plate deposition+filtration " combination process, and this technique mainly exists following problem: 1, technique is loaded down with trivial details, complicated operation, working strength are large; 2, need to add a large amount of medicament, running cost is high, and causes secondary pollution; 3, because different heavy metal ion forms the pH value difference of hydroxide colloid, the poor processing effect of this method, can not qualified discharge.If the emission request of waste water strictly need reach zero release, follow-up, need to carry out evaporation concentration, such energy consumption is large, process cost is high, cost is too high.
Summary of the invention
The object of the invention is to the drawback solving prior art existence, provide a kind of floor space little, simple to operate, level of automation is high, stable effluent quality, the membrane sepn that service efficiency is high, the life-span is long, cost is low and heavy metal wastewater treatment apparatus.
In order to realize foregoing invention object, the technical solution adopted in the present invention is: a kind of heavy metal chelating machine, comprise recycle pump, the water outlet of described recycle pump is connected with membrane module by waste pipe, the inlet channel of described membrane module is connected with inlet pipe, the bottom of described membrane module is provided with the Graceful mouth of a river, the top of described membrane module is provided with concentrated solution outlet, the concentrated solution outlet of described membrane module is connected with catcher by concentrated solution pipeline, the top of described catcher is provided with overflow box outlet, described overflow box outlet is connected with wastewater disposal basin by overflow spout, the middle part of described catcher is provided with water outlet, described water outlet is connected with recycle pump inlet channel by being separated fresh water pipeline, the bottom of described catcher is provided with sewage draining exit, sewage draining exit is connected with sludge concentrating pot by blow-off line, described sludge concentrating pot is connected with pressure filter by filter pressing pump, described pressure filter is provided with filtrate outlet, described filtrate outlet is connected with wastewater disposal basin by filtrate conduit, wherein, described membrane module comprises columned housing, the top of described housing is provided with concentrated solution outlet, the bottom of housing is provided with the Graceful mouth of a river, the bottom of housing is provided with water-in, the bottom of the inside of housing is provided with columnar bracket, described columnar bracket is positioned at the top at the described housing bottom Graceful mouth of a river, cylindrical cavity A is defined between the outer wall of columnar bracket and housing wall, the inwall of columnar bracket defines cylindrical cavity B, described cylindrical cavity A is communicated with water-in on the right side of the bottom of described housing, the bottom of described columnar bracket seals with inner walls and contacts, space is provided with between the top of columnar bracket and housing, the top of columnar bracket has been fixed film silk, the upper end that is fixed, the lower end of described film silk is floating, the inboardend of film silk is communicated with described cylindrical cavity B, the lower periphery of described film silk is fixed with net defence.
Described recycle pump inlet channel is provided with flow valve.
The inlet pipe of the inlet channel connection of described membrane module is provided with intake valve.
The separation fresh water pipeline of the water outlet connection at the middle part of described catcher is provided with throttling valve, the blow-off line of the sewage draining exit connection of the bottom of described catcher is provided with wash water valve, the overflow spout of the overflow box outlet connection at the top of described catcher is provided with surplus valve.
The bottom outside of the columnar bracket of the enclosure interior of described membrane module and inner walls are sealed by ring baffle and contact, the top of columnar bracket is provided with porous web plate, the top of support arranges the outstanding baffle plate to tank wall direction, and described film silk is fixed on the top of described baffle plate.
Described membrane module is external-compression type membrane module, the mode of operation of what it adopted is air supporting and cross-flow.
Described catcher adopts gravity cyclone separator.
Described pressure filter is plate and frame(type)filter press.
The beneficial effect that the present invention produces is: the ingenious treatment process having merged external pressure membrane technique, cross-flow mode of operation, air supporting mode of operation and catcher of device provided by the present invention, make membranous system contamination resistance strong, stable, not only can carry out rationally process to carry out reuse to various heavy metal wastewater thereby, and the heavy metal body refuse purity reclaimed is high, the recycling receiving slag can be carried out, achieve without dirt zero release.Concrete principle is as follows: membrane module inlet channel is connected with inlet pipe, inlet pipe is provided with intake valve, can regulate the gas flow entered in membrane module like this, the enclosure interior bottom of membrane module is positioned at above the Graceful mouth of a river and is provided with columnar bracket, columnar bracket outer wall and housing wall define cylindrical cavity A, columnar bracket inwall defines cylindrical cavity B, wherein cylindrical cavity A is mixing wastewater with air district and is communicated with membrane module water-in, the gas and the heavy metal wastewater thereby that make to enter membrane module bottom like this fully can mix in cylindrical cavity A, the stirring action of gas is utilized to prevent suspended substance in film surface attachment like this, effective reduction even eliminates the fouling membrane that concentration polarization brings, ensure that the long-time steady operation of film, cylindrical cavity B is clear water split tunnel, the clear water after membrane filtration is made directly to be discharged by cylindrical cavity B like this, the bottom outside of columnar bracket and inner walls are sealed by ring baffle and contact, and make not to be communicated with between A, B two cylindrical cavities, be provided with cavity between the top of columnar bracket and housing, this is the passage that air-water mixture upwards walks to enter the floating end of film silk, the top of support arranges the outstanding baffle plate to tank wall direction, film silk is fixed on the top of this baffle plate, the upper end that is fixed, the lower end of film silk is floating, air-water mixture after mixing is filtered by the floating end upwards entering film silk along the cavity between columnar bracket and housing after the release of porous web plate, make membrane filtration in comparatively stable scope, carry out avoiding film like this and be subject to large fluctuation impact, avoid waste water and pile up the film fracture caused at inboardend, and the oil droplet in waste water, heavy metal precipitation particle and other suspended substances can adhere to the surface of small bubbles, rise with bubble and taken out of membranous system, further reduction fouling membrane, and carbon dioxide in air can fully and heavy metal ion react the not tolerant precipitation of Formed hydrochlorate, efficiently solve heavy metal water pollution problems, the inboardend of film silk is communicated with described cylindrical cavity B, make waste water fully can act on film like this, clear water after membrane filtration directly enters water-dilution channel from the inboardend of film bottom and directly discharges, and is fixed with net defence around the inboardend of film silk, this avoid the swing of film silk, meanwhile, film silk, with its high-precision crown_interception, has retained the heavy metal carbonate deposition and hydroxide colloid that generate, has ensured the cleaning of process water, the top of membrane module is provided with concentrated solution liquid outlet, the concentrated solution outlet of membrane module is connected with catcher by concentrated solution pipeline, makes the concentrated solution carrying a large amount of microbubble discharge from the concentrated solution outlet at the top of membrane module and directly enter catcher by concentrated solution pipeline like this, the top of catcher is provided with overflow box outlet and is connected with wastewater disposal basin by overflow spout, these suspended substances just can be discharged from overflow outlet by simple overflow to liquid level at the top of catcher by the bubble floated rapidly after such one side makes to enter catcher by the greasy dirt suspended substance holder sticking to its surface, reduce fouling membrane, the suspended substance making on the other hand to go out through catcher gravity cyclonic separation, greasy dirt eddy flow enter wastewater disposal basin to top overflow box outlet and do circular treatment, the surplus valve that overflow spout is arranged can regulate overflowing liquid floating matter uninterrupted, the middle part of catcher is provided with water outlet and is connected with recycle pump inlet channel by being separated fresh water pipeline, make to cross isolated clear water through catcher process so again to get back to recycle pump and do circular treatment, reduce heavy metal content in water outlet further and ensure that the water of process is cleaner, be separated fresh water pipeline is provided with throttling valve can adjusting water outlet flow and Controlling System pressure, be provided with sewage draining exit bottom catcher and be connected with sludge concentrating pot by blow-off line, make to deposit to heavy metal carbonate deposition bottom catcher like this and hydroxide colloid regularly enters sludge concentrating pot, while blowdown, have the effect on system decompression and flushing membrane surface concurrently, flow valve on blow-off line can regulate blowdown flow rate size, sludge concentrating pot is connected with plate-and-frame filter press by filter pressing pump, plate-and-frame filter press is provided with filtrate outlet, this filtrate outlet is connected with wastewater disposal basin by filtrate conduit, make the heavy metal waste slag in sludge concentrating pot regularly can squeeze into plate-and-frame filter press by filter pressing pump like this and carry out press filtration process, the water after press filtration gets back to wastewater disposal basin by filtrate conduit.
The present invention is with pure physical method process waste water, break traditional coagulation-settlement process, avoid adding secondary pollution that the medicaments such as flocculation agent bring and traditional technology deposits the series of problems such as a large amount of silts, the equal automatic operating of all flow processs of this equipment, fault detects automatically, has floor space little, simple to operate, working efficiency is high, the advantage that long service life, cost are low.
Accompanying drawing explanation
Fig. 1 is current heavy metal waste water treatment process schematic diagram.
Fig. 2 is structural representation of the present invention.
Fig. 3 is membrane module structure schematic diagram in the present invention.
In figure: 1, recycle pump 2, membrane module 3, catcher 4, flow valve 5, throttling valve 6, wash water valve 7, surplus valve 8, sludge concentrating pot 9, filter pressing pump 10, plate-and-frame filter press 11, filtrate conduit 12, intake valve 13, porous web plate 14, net defence 15, cylindrical cavity A16, cylindrical cavity B17, ring baffle 18, baffle plate.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
Embodiment 1
As shown in Figures 2 and 3, a kind of heavy metal chelating machine, comprise recycle pump 1, the water outlet of described recycle pump 1 is connected with membrane module 2 by waste pipe, the inlet channel of described membrane module 2 is connected with inlet pipe, the bottom of described membrane module 2 is provided with the Graceful mouth of a river, the top of described membrane module 2 is provided with concentrated solution liquid outlet, the concentrated solution outlet of described membrane module 2 is connected with catcher 3 by concentrated solution pipeline, the top of described catcher 3 is provided with overflow box outlet, described overflow box outlet is connected with wastewater disposal basin by overflow spout, the middle part of described catcher 3 is provided with water outlet, described water outlet is connected with recycle pump inlet channel by being separated fresh water pipeline, the bottom of described catcher 3 is provided with sewage draining exit, sewage draining exit is connected with sludge concentrating pot 8 by blow-off line, described sludge concentrating pot 8 is connected with pressure filter 10 by filter pressing pump 9, described pressure filter 10 is provided with filtrate outlet, described filtrate outlet is connected with wastewater disposal basin by filtrate conduit, wherein, described membrane module 2 comprises columned housing, the top of described housing is provided with concentrated solution outlet, the bottom of housing is provided with the Graceful mouth of a river, the bottom of housing is provided with water-in, the bottom of the inside of housing is provided with columnar bracket, described columnar bracket is positioned at the top at the described housing bottom Graceful mouth of a river, cylindrical cavity A is defined between the outer wall of columnar bracket and inner walls, the inwall of columnar bracket defines cylindrical cavity B, described cylindrical cavity A is communicated with water-in on the right side of the bottom of described housing, the bottom of described columnar bracket seals with inner walls and contacts, space is provided with between the top of columnar bracket and housing, the top of columnar bracket has been fixed film silk, the upper end that is fixed, the lower end of described film silk is floating, the inboardend of film silk is communicated with described cylindrical cavity B, the lower periphery of described film silk is fixed with net defence.
Heavy metal wastewater thereby supplies recycle pump through transport pipe, the water outlet of recycle pump is connected with membrane module by waste pipe, the inlet channel of membrane module is connected with inlet pipe, the bottom of the enclosure interior of membrane module is positioned at above the Graceful mouth of a river and is provided with columnar bracket, cylindrical cavity A is defined between the outer wall of columnar bracket and inner walls, the inwall of columnar bracket defines cylindrical cavity B, wherein cylindrical cavity A is mixing wastewater with air district and is communicated with membrane module water-in, gas in membrane module is entered and first heavy metal wastewater thereby fully mixes in cylindrical cavity A by recycle pump outlet conduit, the stirring action of gas is utilized to prevent suspended substance in film surface attachment, effective reduction even eliminates the fouling membrane that concentration polarization brings, ensure that the long-time steady operation of film, cylindrical cavity B is clear water split tunnel, clear water after membrane filtration is directly discharged by cylindrical cavity B, the bottom outside of columnar bracket seals with inner walls and contacts, and makes not to be communicated with between A, B two cylindrical cavities, and be provided with space between the top of columnar bracket and housing, this is the passage that air-water mixture upwards walks to enter the floating end of film silk, the upper end that is fixed, the lower end of film silk is floating, the floating end that air-water mixture after mixing upwards enters film silk along the cavity between columnar bracket and housing filters, make membrane filtration in comparatively stable scope, carry out avoiding film and be subject to large fluctuation impact, avoid waste water and pile up the film fracture caused at inboardend, and the oil droplet in waste water, heavy metal precipitation particle and other suspended substances can adhere to the surface of small bubbles, rise with bubble and taken out of membranous system, further reduction fouling membrane, and carbon dioxide in air can fully and heavy metal ion react the not tolerant precipitation of Formed hydrochlorate, efficiently solve heavy metal water pollution problems, the inboardend of film silk is communicated with described cylindrical cavity B, make waste water fully can act on film like this, clear water after membrane filtration directly enters water-dilution channel from the inboardend of film bottom and directly discharges, and is fixed with net defence around the inboardend of film silk, avoids the swing of film silk, meanwhile, film silk, with its high-precision crown_interception, has retained the heavy metal carbonate deposition and hydroxide colloid that generate, has ensured the cleaning of process water, the top of membrane module is provided with concentrated solution liquid outlet, the concentrated solution outlet of membrane module is connected with catcher by concentrated solution pipeline, and the concentrated solution of such membrane module process carries a large amount of microbubble and discharges from the concentrated solution outlet at the top of membrane module and directly enter catcher by concentrated solution pipeline, the top of catcher is provided with overflow box outlet and is connected with wastewater disposal basin by overflow spout, these suspended substances are discharged from overflow outlet by simple overflow to liquid level at the top of catcher by the bubble floated rapidly after entering catcher by the greasy dirt suspended substance holder sticking to its surface, reduce fouling membrane, in addition, enter wastewater disposal basin to top overflow box outlet do circular treatment through the suspended substance of the isolated light specific gravity of catcher process, greasy dirt eddy flow, the middle part of catcher is provided with water outlet and is connected with recycle pump inlet channel by being separated fresh water pipeline, make to cross isolated clear water through catcher process so again to get back to recycle pump and do circular treatment, reduce heavy metal content in water outlet further and ensure that the water of process is cleaner, the bottom of catcher is provided with sewage draining exit and is connected with sludge concentrating pot by blow-off line, make to deposit to heavy metal carbonate deposition bottom catcher like this and hydroxide colloid regularly enters sludge concentrating pot, while blowdown, have the effect on system decompression and flushing membrane surface concurrently, sludge concentrating pot is connected with pressure filter by filter pressing pump, pressure filter is provided with filtrate outlet, this filtrate outlet is connected with wastewater disposal basin by filtrate conduit, make the heavy metal waste slag in sludge concentrating pot regularly can squeeze into pressure filter by filter pressing pump like this and carry out press filtration process, the water after press filtration by filtrate conduit to getting back to wastewater disposal basin.
To sum up, it is little that the present invention has floor space, simple to operate, and automatization degree is high, and working efficiency is high, the advantage that long service life, cost are low.
Embodiment 2
As shown in Figures 2 and 3, a kind of heavy metal chelating machine, comprise recycle pump 1, the water outlet of described recycle pump 1 is connected with membrane module 2 by waste pipe, the inlet channel of described membrane module 2 is connected with inlet pipe, the bottom of described membrane module 2 is provided with the Graceful mouth of a river, the top of described membrane module 2 is provided with concentrated solution outlet, the concentrated solution outlet of described membrane module 2 is connected with catcher 3 by concentrated solution pipeline, the top of described catcher 3 is provided with overflow box outlet, described overflow box outlet is connected with wastewater disposal basin by overflow spout, the middle part of described catcher 3 is provided with water outlet, described water outlet is connected with recycle pump inlet channel by being separated fresh water pipeline, the bottom of described catcher 3 is provided with sewage draining exit, sewage draining exit is connected with sludge concentrating pot by blow-off line, described sludge concentrating pot 8 is connected with pressure filter 10 by filter pressing pump 9, described pressure filter 10 is provided with filtrate outlet, described filtrate outlet is connected with wastewater disposal basin by filtrate conduit, wherein, described membrane module 2 comprises columned housing, the top of described housing is provided with concentrated solution outlet, the bottom of housing is provided with the Graceful mouth of a river, the bottom of housing is provided with water-in, the bottom of the inside of housing is provided with columnar bracket, described columnar bracket is positioned at the top at the described housing bottom Graceful mouth of a river, cylindrical cavity A is defined between the outer wall of columnar bracket and inner walls, the inwall of columnar bracket defines cylindrical cavity B, described cylindrical cavity A is communicated with the lower water inlet of described housing, the bottom of columnar bracket seals with inner walls and contacts, space is provided with between the top of columnar bracket and housing, the top of columnar bracket has been fixed film silk, the upper end that is fixed, the lower end of described film silk is floating, the inboardend of film silk is communicated with described cylindrical cavity B, the lower periphery of described film silk is fixed with net defence.
The inlet channel of described recycle pump 1 is provided with flow valve 4.
The inlet pipe of the inlet channel connection of described membrane module 2 is provided with intake valve 12.
The separation clear water pipe of the water outlet connection at the middle part of described catcher 3 is provided with throttling valve 5, the blow-off pipe of the sewage draining exit connection of the bottom of described catcher 3 is provided with wash water valve 6, the upflow tube of the overflow box outlet connection at the top of described catcher 3 is provided with surplus valve 7.
The bottom outside of the columnar bracket of the enclosure interior of described membrane module and inner walls are sealed by ring baffle and contact, the top of columnar bracket is provided with porous web plate, the top of support arranges the outstanding baffle plate to tank wall direction, and described film silk is fixed on the top of described baffle plate.
Described membrane module 2 is external-compression type membrane module, the mode of operation of what it adopted is air supporting and cross-flow.
Described catcher 3 adopts gravity cyclone separator.
Described pressure filter 10 is plate and frame(type)filter press.
Heavy metal wastewater thereby supplies recycle pump through transport pipe, and the water outlet of recycle pump is connected with membrane module by waste pipe, membrane module inlet channel is connected with inlet pipe, inlet pipe is provided with intake valve, regulates intake valve can regulate the gas flow entered in membrane module, the enclosure interior bottom of membrane module is positioned at above the Graceful mouth of a river and is provided with columnar bracket, cylindrical cavity A is defined between the outer wall of columnar bracket and inner walls, the inwall of columnar bracket defines cylindrical cavity B, wherein cylindrical cavity A is mixing wastewater with air district and is communicated with water-in on the right side of the bottom of housing, gas in membrane module is entered and first heavy metal wastewater thereby fully mixes in cylindrical cavity A by recycle pump outlet conduit, the stirring action of gas is utilized to prevent suspended substance in film surface attachment, effective reduction even eliminates the fouling membrane that concentration polarization brings, ensure that the long-time steady operation of film, cylindrical cavity B is clear water split tunnel, clear water after membrane filtration is directly discharged by cylindrical cavity B, the bottom outside of columnar bracket and inner walls are sealed by ring baffle and contact, and make not to be communicated with between A, B two cylindrical cavities, be provided with space between the top of columnar bracket and housing, this is the passage that air-water mixture upwards walks to enter the floating end of film silk, the top of support arranges the outstanding baffle plate to tank wall direction, film silk is fixed on the top of this baffle plate, the upper end that is fixed, the lower end of film silk is floating, air-water mixture after mixing is filtered by the floating end upwards entering film silk along the cavity between columnar bracket and housing under pressure after the release of porous web plate, make membrane filtration in comparatively stable scope, carry out avoiding film and be subject to large fluctuation impact, avoid waste water and pile up the film fracture caused at inboardend, and the oil droplet in waste water, heavy metal precipitation particle and other suspended substances can adhere to the surface of small bubbles, rise with bubble and taken out of membranous system, further reduction fouling membrane, and carbon dioxide in air can fully and heavy metal ion react the not tolerant precipitation of Formed hydrochlorate, efficiently solve heavy metal water pollution problems, the inboardend of film silk is communicated with described cylindrical cavity B, make waste water fully can act on film like this, clear water after membrane filtration directly enters water-dilution channel from the inboardend of film bottom and directly discharges, and is fixed with net defence around the inboardend of film silk, avoids the swing of film silk, meanwhile, film silk, with its high-precision crown_interception, has retained the heavy metal carbonate deposition and hydroxide colloid that generate, has ensured the cleaning of process water, the top of membrane module is provided with concentrated solution liquid outlet, the concentrated solution outlet of membrane module is connected with catcher by concentrated solution pipeline, and the concentrated solution of such membrane module process carries a large amount of microbubble and discharges from the concentrated solution outlet at the top of membrane module and directly enter catcher by concentrated solution pipeline, the top of catcher is provided with overflow box outlet and is connected with wastewater disposal basin by overflow spout, these suspended substances are discharged from overflow outlet by simple overflow to liquid level at the top of catcher by the bubble floated rapidly after entering catcher by the greasy dirt suspended substance holder sticking to its surface, reduce fouling membrane, in addition, suspended substance, the greasy dirt eddy flow of the light specific gravity gone out through catcher gravity cyclonic separation enter wastewater disposal basin to top overflow box outlet and do circular treatment, the surplus valve that overflow spout is arranged can regulate overflowing liquid floating matter uninterrupted, the middle part of catcher is provided with water outlet and is connected with recycle pump inlet channel by being separated fresh water pipeline, make to cross isolated clear water through catcher process so again to get back to recycle pump and do circular treatment, reduce heavy metal content in water outlet further and ensure that the water of process is cleaner, be separated fresh water pipeline is provided with throttling valve can adjusting water outlet flow and Controlling System pressure, the bottom of catcher is provided with sewage draining exit and is connected with sludge concentrating pot by blow-off line, make to deposit to heavy metal carbonate deposition bottom catcher like this and hydroxide colloid regularly enters sludge concentrating pot, while blowdown, have the effect on system decompression and flushing membrane surface concurrently, flow valve on blow-off line can regulate blowdown flow rate size, sludge concentrating pot is connected with plate-and-frame filter press by filter pressing pump, plate-and-frame filter press is provided with filtrate outlet, this filtrate outlet is connected with wastewater disposal basin by filtrate conduit, make the heavy metal waste slag in sludge concentrating pot regularly can squeeze into plate-and-frame filter press by filter pressing pump like this and carry out press filtration process, the water after press filtration by filtrate conduit to getting back to wastewater disposal basin.
The key point of apparatus of the present invention is ingeniously to have merged external pressure membrane technique, cross-flow mode of operation, the treatment process of air supporting mode of operation and catcher, efficiently solve the blockage problem of film, ensure that the long-time steady operation of film, because membrane process itself is a physical separating process, so this device has broken traditional coagulation-settlement process, do not need to add any flocculation agent, avoid the series of problems such as the secondary pollution that medicament brings, rationally process can be carried out to carry out reuse to various heavy metal wastewater thereby, the heavy metal body refuse purity reclaimed is high, the recycling receiving slag can be carried out, achieve without dirt zero release, and stable effluent quality, in water, heavy metal content is better than national drinking water standard.
To sum up, it is little that the present invention has floor space, simple to operate, and level of automation is high, and working efficiency is high, the advantage that long service life, cost are low.
Claims (8)
1. a heavy metal chelating machine, it is characterized in that: comprise recycle pump, the water outlet of described recycle pump is connected with membrane module by waste pipe, the inlet channel of described membrane module is connected with inlet pipe, the bottom of described membrane module is provided with the Graceful mouth of a river, the top of described membrane module is provided with concentrated solution outlet, the concentrated solution outlet of described membrane module is connected with catcher by concentrated solution pipeline, the top of described catcher is provided with overflow box outlet, described overflow box outlet is connected with wastewater disposal basin by overflow spout, the middle part of described catcher is provided with water outlet, described water outlet is connected with recycle pump inlet channel by being separated fresh water pipeline, the bottom of described catcher is provided with sewage draining exit, sewage draining exit is connected with sludge concentrating pot by blow-off line, described sludge concentrating pot is connected with pressure filter by filter pressing pump, described pressure filter is provided with filtrate outlet, described filtrate outlet is connected with wastewater disposal basin by filtrate conduit, wherein, described membrane module comprises columned housing, the top of described housing is provided with concentrated solution outlet, the bottom of housing is provided with the Graceful mouth of a river, water-in is provided with on the right side of the bottom of housing, the bottom of the inside of housing is provided with columnar bracket, described columnar bracket is positioned at the top at the described housing bottom Graceful mouth of a river, cylindrical cavity A is defined between the outer wall of columnar bracket and inner walls, the inwall of columnar bracket defines cylindrical cavity B, described cylindrical cavity A is communicated with water-in on the right side of the bottom of described housing, the bottom of described columnar bracket seals with inner walls and contacts, gap is provided with between the top of columnar bracket and housing, the top of columnar bracket has been fixed film silk, the upper end that is fixed, the lower end of described film silk is floating, the inboardend of film silk is communicated with described cylindrical cavity B, the lower periphery of described film silk is fixed with net defence.
2. a kind of heavy metal chelating machine as claimed in claim 1, is characterized in that: described recycle pump inlet channel is provided with flow valve.
3. a kind of heavy metal chelating machine as claimed in claim 1, is characterized in that: the inlet pipe of the inlet channel connection of described membrane module is provided with intake valve.
4. a kind of heavy metal chelating machine as claimed in claim 1, it is characterized in that: the separation fresh water pipeline of the water outlet connection at the middle part of described catcher is provided with throttling valve, the blow-off line of the sewage draining exit connection of the bottom of described catcher is provided with wash water valve, the overflow spout of the overflow box outlet connection at the top of described catcher is provided with surplus valve.
5. a kind of heavy metal chelating machine as claimed in claim 1, it is characterized in that: the bottom outside of the columnar bracket of the enclosure interior of described membrane module and inner walls are sealed by ring baffle and contact, the top of columnar bracket is provided with porous web plate, the top of support arranges the outstanding baffle plate to tank wall direction, and described film silk is fixed on the top of described baffle plate.
6. a kind of heavy metal chelating machine as claimed in claim 1, is characterized in that: described membrane module is external-compression type membrane module, the mode of operation of what it adopted is air supporting and cross-flow.
7. a kind of heavy metal chelating machine as claimed in claim 1, is characterized in that: described catcher adopts gravity cyclone separator.
8. a kind of heavy metal chelating machine as claimed in claim 1, is characterized in that: described pressure filter is plate and frame(type)filter press.
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| CN201410411193.XA CN104150630B (en) | 2014-08-20 | 2014-08-20 | A kind of heavy metal chelating machine |
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| CN201410411193.XA CN104150630B (en) | 2014-08-20 | 2014-08-20 | A kind of heavy metal chelating machine |
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| CN104150630B true CN104150630B (en) | 2016-04-06 |
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| CN109942063A (en) * | 2016-08-16 | 2019-06-28 | 涂瑞强 | A kind of reactor of Beneficiation Wastewater |
| CN108455763B (en) * | 2018-04-26 | 2024-05-31 | 厦门清胜环保科技有限公司 | High-efficient treatment jar of ore pulp sewage |
| CN109738264A (en) * | 2019-01-09 | 2019-05-10 | 中国科学院合肥物质科学研究院 | A kind of automation soil pumping and filtering device |
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|---|---|---|---|---|
| CN202237816U (en) * | 2011-08-18 | 2012-05-30 | 郑州银科尔科技有限公司 | Efficient self-cleaning membrane separation and purification device |
| CN103908818A (en) * | 2014-04-18 | 2014-07-09 | 济南华闻节能工程技术有限公司 | Film lamination filter for condensed water treatment |
| CN204162514U (en) * | 2014-08-20 | 2015-02-18 | 郑州银科尔科技有限公司 | A kind of heavy metal chelating machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03169394A (en) * | 1989-11-30 | 1991-07-23 | Fujitsu Ltd | Suspension wastewater recovery apparatus |
| JP3867454B2 (en) * | 1999-10-25 | 2007-01-10 | 株式会社日立製作所 | Membrane separation and purification equipment |
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2014
- 2014-08-20 CN CN201410411193.XA patent/CN104150630B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202237816U (en) * | 2011-08-18 | 2012-05-30 | 郑州银科尔科技有限公司 | Efficient self-cleaning membrane separation and purification device |
| CN103908818A (en) * | 2014-04-18 | 2014-07-09 | 济南华闻节能工程技术有限公司 | Film lamination filter for condensed water treatment |
| CN204162514U (en) * | 2014-08-20 | 2015-02-18 | 郑州银科尔科技有限公司 | A kind of heavy metal chelating machine |
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| CN104150630A (en) | 2014-11-19 |
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