CN103058422A - Technique for fluorite mine floatation sewage treatment - Google Patents
Technique for fluorite mine floatation sewage treatment Download PDFInfo
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- CN103058422A CN103058422A CN2013100342288A CN201310034228A CN103058422A CN 103058422 A CN103058422 A CN 103058422A CN 2013100342288 A CN2013100342288 A CN 2013100342288A CN 201310034228 A CN201310034228 A CN 201310034228A CN 103058422 A CN103058422 A CN 103058422A
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Abstract
The invention discloses a technique for fluorite mine floatation sewage treatment. The technique disclosed by the invention uses two deaerating tanks for removing air bubbles in mud, so that tiny solid particles are prevented from being adsorbed onto the air bubbles, and sedimentation and separation effects are improved. The technique disclosed by the invention needs no tailing pond, and by using the technique, the floor space can be reduced by more than 96% in comparison with the existing fluorite mine floatation sewage treatment technique according to a newly built fluorite mine floatation plant, so that land acquisition cost and tailing pond construction cost are saved, and the construction period is shortened; according to the existing floatation plant with tailing pond that is built, high investment for clearing the tailing pond or newly building the tailing pond after the tailing pond is full in future is saved. Compared with a waste water treatment technique using the tailing pond, the technique completely avoids potential environmental protection hazard about waste water leakage in the tailing pond and potential safety hazard about dam break of the tailing pond. The method disclosed by the invention realizes good separation effect, small floor space, low investment and low operation cost.
Description
Technical field
The present invention relates to a kind of fluorite flotation waste water reclamation and utilize technique, relate in particular to a kind of less investment, fluorite flotation waste water treatment process that working cost is low.
Background technology
The main component of fluorite is Calcium Fluoride (Fluorspan), is the basic material of the industry such as hydrofluoric acid, iron and steel, aluminium, pottery, aviation.The Natural Fluorite ore deposit is a kind of nonmetalliferous ore, and normal association has the impurity such as carbonate, silicate, quartz, contains Calcium Fluoride (Fluorspan) purity Fluorspar Powder higher, easy to use thereby need the process ore dressing that impurity is separated to make.For the fluorite ore of heterogeneity, use different flotation reagents in the floatation process, collecting agent commonly used has oleic acid etc., and inhibitor has water glass etc., and sequestrant has soda ash etc.Fluorite ore makes Fluorspar Powder through apparatus processing such as crusher, vibratory screening apparatus, ball mill, flotation machine, thickener, drying machines.Add water in ball mill workshop section and form ore pulp, add flotation reagent and clear water before entering flotation machine, Fluorspar Powder with enter postorder workshop section after impurity is realized separating in flotation machine, contain in a large number simultaneously the waste water of sand, mud, flotation reagent in the discharge of flotation machine workshop section.The treatment process of fluorite flotation waste water has following several at present: discharge after (1), the waste water process Tailings Dam natural subsidence; (2), adding water purification agent (coagulating agent, flocculation agent) in the waste water helps and heavy discharges after the Tailings Dam natural subsidence; (3), waste water adds water purification agent (coagulating agent, flocculation agent) and re-uses whizzer, pressure filter and process the water outlet discharging; (4), waste water by swirler, equalizing tank, mixing tank, add water purification agent (coagulating agent and flocculation agent), efficient concentration settling pond, pressure filter and process, the clear liquid reuse, tailings enters tailing dam.
Owing to added the medicaments such as collecting agent, inhibitor, sequestrant in the ore pulp before the flotation, the flotation waste water of generation is a kind of water that contains the electrically charged suspended substance of colloidal, is difficult for the natural sedimentation separation.The supernatant liquor water quality that above-mentioned (1) kind method natural subsidence technique obtains is relatively poor, affects quality product when being back to flotation, not up to standard, contaminate environment during discharging; Need to be in very large Tailings Dam for a long time natural sedimentation, the Tailings Dam floor space is large.The chemical feeding quantity of natural subsidence technique was large after above-mentioned (2) kind method adding water purification agent (coagulating agent, flocculation agent) helped and sinks, running cost is higher; The Tailings Dam floor space is large.Above-mentioned (3) although the kind method can the fast processing flotation waste water, and chemical feeding quantity is large, current consumption is large, and running cost is high, and effluent quality is poor, can not be back to flotation or qualified discharge, needs simultaneously supporting Tailings Dam.The clear liquid that above-mentioned (4) kind method produces does not pass through filter process, and effluent quality is unstable, needs to use Tailings Dam, and floor space is large, has the environmental protection hidden danger of the waste water leakage in the Tailings Dam and the potential safety hazard of Tailings Dam dam break.
More than have lower, the technology imperfection for the treatment of process technology content now, effluent quality is unstable, and chemical feeding quantity is large, running cost is high, and needs the Tailings Dam of large volume, and floor space is large.So far, also there are not the clear water of a kind of solid content that can be in the situation of not using Tailings Dam the fluorite flotation wastewater treatment be become can be back to flotation about 10mg/L and the technique of water ratio about 15% two kinds of materials of dry sand that can directly transport and recycle.
Summary of the invention
Character for fluorite flotation waste water complicated component, separation difficulty, and existing treatment process running cost is high, effluent quality is poor, the present situation that has environmental protection hidden danger and potential safety hazard, the purpose of this invention is to provide a kind of fluorite flotation waste water treatment process, make fluorite flotation waste water behind this new_type treatment, become two kinds of materials of dry sand that as clear as crystal, as can be back to fluorite clear water and water ratio about 15% can directly transport and recycle in the situation of not using Tailings Dam.
For achieving the above object, technical scheme of the present invention is as follows:
The invention provides a kind of fluorite flotation waste water treatment process, may further comprise the steps:
In the fluorite flotation waste water suction hydrocyclone, realize separating of sand and mud;
Out mud enters No. 1 degassing vessel degasification from hydrocyclone, and the mud that vibrating-dewatering screen and strainer are discharged enters No. 1 degassing vessel degasification, then is extracted in the efficient deep wimble thickener, and mud is being separated into thin mud and dense mud in efficient deep wimble thickener;
Out dense mud enters medial launder from efficient deep wimble thickener, and hydrocyclone sand out suction vibrating-dewatering screen together; Through the upper dry sand that forms of the processing sieve of vibrating-dewatering screen, sieve is lower to form mud, and mud enters No. 1 degassing vessel and carries out later separation;
Out thin mud enters No. 2 degassing vessel degasification from efficient deep wimble thickener, with coagulating agent suction strainer; Flocculation agent adds in front 10 ~ 30 meters input duct of strainer fluid inlet, coagulating agent, flocculation agent and waste water are mixed first in input duct, then in strainer, flocculate, precipitate, filter, clear water reclaims after the top outlet of strainer is flowed out, and the mud that filter bottom is discharged enters No. 1 degassing vessel and carries out later separation.
Preferably, the solid content of described thin mud is 0.8 ~ 6%.
Preferably, the solid content of described dense mud is 50 ~ 60%.
Preferably, described coagulating agent is selected from ferrous sulfate, polymerize aluminum chloride, aluminium iron polychloride or iron trichloride.
Preferably, the concentration of described coagulating agent is 1 ~ 3%.
Preferably, described flocculation agent is selected from cationic polyacrylamide, anionic polyacrylamide, amphiprotic polyacrylamide or non-ionic polyacrylamide.
Preferably, the concentration of described flocculation agent is 0.1 ~ 0.2%.
Preferably, the suspension content of described clear water is 1 ~ 10mg/L.
Preferably, the water ratio of described dry sand is 13 ~ 15%.
The present invention compares with prior art, has the following advantages and beneficial effect:
1, the clear water water white transparency through obtaining after the art breading of the present invention, suspension content is 1 ~ 10mg/L, can be back to flotation and ball milling, saves great lot of water resources, saves the flotation reagents such as collecting agent, inhibitor, sequestrant.
2, process operation expense of the present invention is low.It is more scientific that chemical feeding points is selected, waste water separates most sand and a part of mud in the waste water through hydrocyclone, efficient deep wimble thickener first, then add coagulating agent and flocculation agent, significantly reduce because consume the solid substance of coagulating agent and flocculation agent this moment in the waste water, the pharmaceutical quantities that need to add significantly reduces thereupon; In addition, compare with other equipment, the facility that use in the at present existing technique, the properity of the strainer that the present invention adopts is more suitable for the needs of fluorite flotation wastewater treatment, use strainer only need add a small amount of coagulating agent and flocculation agent the less particle of suspended substance formation can be removed by strainer, other equipment can not be accomplished in the existing technique at present.The chemical feeding quantity of this technique be tradition add water purification agent (coagulating agent, flocculation agent) help heavy after Tailings Dam natural subsidence technique 10%, to add 20% of other apparatus and process such as the supporting pressure filter of water purification agent (coagulating agent, flocculation agent), whizzer, settling pond, settling tank, can reduce water purification agent (coagulating agent, flocculation agent) usage quantity, for enterprise saves running cost.
3, the present invention compares with the technique of use pressure filter, whizzer, can reduce power consumption and chemical feeding quantity, reduces the wastewater treatment working cost.
4, be about 15% dry sand through obtaining water ratio after the art breading of the present invention, can realize that dry method stores up.Contain the useful element or the non-metallic minerals that are worth recovery in some sand, such as pyrite, plumbous zinc ore, barite etc., adopt corresponding beneficiation method to be reclaimed, can realize that resource takes full advantage of; Also can directly dry sand be produced the material of construction such as brick; Can directly will sell outside the dry sand transportation; The potential safety hazard in worked-out section can be eliminated in dry sand filling fluorite ore worked-out section, save safety and drop into, to reclaiming behind the land restoration, save the environmental improvement fund, be conducive to the geologic media protection.
5, technique of the present invention does not need Tailings Dam, for newly-built fluorite flotation factory, compares with existing fluorite flotation waste water treatment process and to use this technique can reduce floor space more than 96%, saves land expropriation cost, builds the Tailings Dam expense, shortens the construction period; For the existing flotation mill that builds up Tailings Dam, saved the great number investment that Tailings Dam in the future is booked rear cleaning Tailings Dam or newly-built Tailings Dam.Compare with the waste water treatment process that uses Tailings Dam, this technique has thoroughly been eliminated the environmental protection hidden danger that waste water leaks in the Tailings Dam and the potential safety hazard of Tailings Dam dam break.
6, one-time investment of the present invention is few, compares with other fluorite flotation waste water treatment process that use Tailings Dam, and investment of the present invention is about the former 30 ~ 40%.
7, use two degassing vessels in the technique of the present invention, can remove the bubble in the mud, avoided tiny solid particulate to be attached on the bubble, strengthened sedimentation and the effect of separating.
8, used efficient deep wimble thickener in the technique of the present invention, than common thickener to mud, moisture from effect better, it is lower that top goes out fluid solid content, the dense mud solid content in bottom is higher.
Description of drawings
Fig. 1 is the schema of fluorite flotation waste water treatment process.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawing illustrated embodiment.
Below used strainer be the class moral strainer that moral environmental protection equipment company limited of Shanghai class produces, model is: the BD-5 type, 3.3 meters of diameters, high 6.9 meters, top is cylindrical, the bottom is taper shape, there are swash plate, filtration medium, water cap etc. in inside.
Strainer in this technique is a kind of combined-type water treatment unit that moral environmental protection equipment company limited of Shanghai class produces.Collection dosing flocculation, inclined plate sedimentation, the granular filtering medium that floats are filtered into one.The main purpose of design strainer is the suspended substance of efficiently removing in the mud in the technique, uses general equipment not accomplish.
Mention No. 1 degassing vessel, No. 2 degassing vessels in the invention, its volume per hour is about about 1/8 (if flow is Q cube m/h, then degassing vessel can be designed to the Q/8 cubic meter) of the water yield; Structure is a square or cylindrical open container, and the larger degasifying effect of surface-area is better; Be equivalent to a dashpot, make waste water in groove short stay once so that the bubble in the waste water is overflowed the more few solid particulate that more is conducive to remove in the waste water of the bubble in the waste water from waste water.
Embodiment 1
As shown in Figure 1, Fig. 1 is the schema of fluorite flotation waste water treatment process.Take Henan fluorite flotation factory waste water as example, introduce the embodiment of this technique.
Fluorite flotation waste water (suspension content of fluorite flotation waste water is 42603mg/L) is realized separating of sand and mud with No. 1 pump flow suction hydrocyclone with 40 cubes m/hs; From the top mud out of hydrocyclone through No. 1 degassing vessel degasification, the mud that vibrating-dewatering screen and strainer are discharged enters No. 1 degassing vessel degasification, then pump into efficient deep wimble thickener through No. 2 pumps, its top thin mud (solid content is 1%) out is through No. 2 degassing vessel degasification, per hour being added in simultaneously and being dissolved into concentration in the coagulating agent stirred pot is 100 liters of 1.5% copperas solutions, after No. 3 pumps pump into strainer, in the input duct of strainer, per hour be added in through No. 4 pumps that to be dissolved into concentration in the flocculation agent stirred pot be that 0.1% molecular weight is 300 liters of 10,000,000 anionic polyacrylamide solution, in strainer, flocculate, precipitation, filter, clear water reclaims for flotation and ball milling after the top outlet of strainer is flowed out, and the suspension content of clear water is 2mg/L.
No. 1 degassing vessel that the mud that filter bottom produces enters the hydrocyclone back carries out later separation.The dense mud (solid content is 56%) that the sand that the hydrocyclone bottom produces and efficient deep wimble thickener bottom produce all enters medial launder, pump into vibrating-dewatering screen through No. 5 pumps, No. 1 degassing vessel that the mud that its underpart produces enters the hydrocyclone back carries out later separation, the water ratio that its top produces dry sand is 13.2%, firmly be not held in the hand and can extrude water, can transport factory with automobile and sell.
Embodiment 2
Fluorite flotation waste water (suspension content of fluorite flotation waste water is 50210mg/L) is realized separating of sand and mud with No. 1 pump flow suction hydrocyclone with 40 cubes m/hs; From the top mud out of hydrocyclone through No. 1 degassing vessel degasification, the mud that vibrating-dewatering screen and strainer are discharged enters No. 1 degassing vessel degasification, then pump into efficient deep wimble thickener through No. 2 pumps, its top thin mud (solid content is 0.8%) out is through No. 2 degassing vessel degasification, per hour being added in simultaneously and being dissolved into concentration in the coagulating agent stirred pot is 100 liters of 1% copperas solutions, after No. 3 pumps pump into strainer, in the input duct of strainer, per hour be added in through No. 4 pumps that to be dissolved into concentration in the flocculation agent stirred pot be that 0.2% molecular weight is 300 liters of 10,000,000 anionic polyacrylamide solution, in strainer, flocculate, precipitation, filter, clear water reclaims for flotation and ball milling after the top outlet of strainer is flowed out, and the suspension content of clear water is 6mg/L.
No. 1 degassing vessel that the mud that filter bottom produces enters the hydrocyclone back carries out later separation.The dense mud (solid content is 60%) that the sand that the hydrocyclone bottom produces and efficient deep wimble thickener bottom produce all enters medial launder, pump into vibrating-dewatering screen through No. 5 pumps, No. 1 degassing vessel that the mud that its underpart produces enters the hydrocyclone back carries out later separation, the water ratio that its top produces dry sand is 14.5%, firmly be not held in the hand and can extrude water, can transport factory with automobile and sell.
Embodiment 3
Fluorite flotation waste water (suspension content of fluorite flotation waste water is 47508mg/L) is realized separating of sand and mud with No. 1 pump flow suction hydrocyclone with 40 cubes m/hs; From the top mud out of hydrocyclone through No. 1 degassing vessel degasification, the mud that vibrating-dewatering screen and strainer are discharged enters No. 1 degassing vessel degasification, then pump into efficient deep wimble thickener through No. 2 pumps, its top thin mud (solid content is 6%) out is through No. 2 degassing vessel degasification, per hour being added in simultaneously and being dissolved into concentration in the coagulating agent stirred pot is 100 liters of 3% copperas solutions, after No. 3 pumps pump into strainer, in the input duct of strainer, per hour be added in through No. 4 pumps that to be dissolved into concentration in the flocculation agent stirred pot be that 0.15% molecular weight is 300 liters of 10,000,000 anionic polyacrylamide solution, in strainer, flocculate, precipitation, filter, clear water reclaims for flotation and ball milling after the top outlet of strainer is flowed out, and the suspension content of clear water is 3mg/L.
No. 1 degassing vessel that the mud that filter bottom produces enters the hydrocyclone back carries out later separation.The dense mud (solid content is 50%) that the sand that the hydrocyclone bottom produces and efficient deep wimble thickener bottom produce all enters medial launder, pump into vibrating-dewatering screen through No. 5 pumps, No. 1 degassing vessel that the mud that its underpart produces enters the hydrocyclone back carries out later separation, the water ratio that its top produces dry sand is 13.5%, firmly be not held in the hand and can extrude water, can transport factory with automobile and sell.
Embodiment 4
Fluorite flotation waste water (suspension content of fluorite flotation waste water is 45007mg/L) is realized separating of sand and mud with No. 1 pump flow suction hydrocyclone with 40 cubes m/hs; From the top mud out of hydrocyclone through No. 1 degassing vessel degasification, the mud that vibrating-dewatering screen and strainer are discharged enters No. 1 degassing vessel degasification, then pump into efficient deep wimble thickener through No. 2 pumps, its top thin mud (solid content is 3%) out is through No. 2 degassing vessel degasification, per hour being added in simultaneously and being dissolved into concentration in the coagulating agent stirred pot is 100 liters of 2% copperas solutions, after No. 3 pumps pump into strainer, in the input duct of strainer, per hour be added in through No. 4 pumps that to be dissolved into concentration in the flocculation agent stirred pot be that 0.15% molecular weight is 300 liters of 10,000,000 anionic polyacrylamide solution, in strainer, flocculate, precipitation, filter, clear water reclaims for flotation and ball milling after the top outlet of strainer is flowed out, and the suspension content of clear water is 4mg/L.
No. 1 degassing vessel that the mud that filter bottom produces enters the hydrocyclone back carries out later separation.The dense mud (solid content is 52%) that the sand that the hydrocyclone bottom produces and efficient deep wimble thickener bottom produce all enters medial launder, pump into vibrating-dewatering screen through No. 5 pumps, No. 1 degassing vessel that the mud that its underpart produces enters the hydrocyclone back carries out later separation, the water ratio that its top produces dry sand is 14%, firmly be not held in the hand and can extrude water, can transport factory with automobile and sell.
Embodiment 5
Fluorite flotation waste water (suspension content of fluorite flotation waste water is 42615mg/L) is realized separating of sand and mud with No. 1 pump flow suction hydrocyclone with 40 cubes m/hs; From the top mud out of hydrocyclone through No. 1 degassing vessel degasification, the mud that vibrating-dewatering screen and strainer are discharged enters No. 1 degassing vessel degasification, then pump into efficient deep wimble thickener through No. 2 pumps, its top thin mud (solid content is 1.2%) out is through No. 2 degassing vessel degasification, per hour being added in simultaneously and being dissolved into concentration in the coagulating agent stirred pot is 100 liters of 1.5% polymeric aluminum chlorides solutions, after No. 3 pumps pump into strainer, in the input duct of strainer, per hour be added in through No. 4 pumps that to be dissolved into concentration in the flocculation agent stirred pot be 300 liters of 0.2% cationic polyacrylamide solution, in strainer, flocculate, precipitation, filter, clear water reclaims for flotation and ball milling after the top outlet of strainer is flowed out, and the suspension content of clear water is 1mg/L.
No. 1 degassing vessel that the mud that filter bottom produces enters the hydrocyclone back carries out later separation.The dense mud (solid content is 55%) that the sand that the hydrocyclone bottom produces and efficient deep wimble thickener bottom produce all enters medial launder, pump into vibrating-dewatering screen through No. 5 pumps, No. 1 degassing vessel that the mud that its underpart produces enters the hydrocyclone back carries out later separation, the water ratio that its top produces dry sand is 13%, firmly be not held in the hand and can extrude water, can transport factory with automobile and sell.
Embodiment 6
Fluorite flotation waste water (suspension content of fluorite flotation waste water is 49856mg/L) is realized separating of sand and mud with No. 1 pump flow suction hydrocyclone with 40 cubes m/hs; From the top mud out of hydrocyclone through No. 1 degassing vessel degasification, the mud that vibrating-dewatering screen and strainer are discharged enters No. 1 degassing vessel degasification, then pump into efficient deep wimble thickener through No. 2 pumps, its top thin mud (solid content is 2.6%) out is through No. 2 degassing vessel degasification, per hour being added in simultaneously and being dissolved into concentration in the coagulating agent stirred pot is 90 liters of 1% polymerize aluminum chloride ferrous solutions, after No. 3 pumps pump into strainer, in the input duct of strainer, per hour be added in through No. 4 pumps that to be dissolved into concentration in the flocculation agent stirred pot be 350 liters of 0.1% amphiprotic polyacrylamide solution, in strainer, flocculate, precipitation, filter, clear water reclaims for flotation and ball milling after the top outlet of strainer is flowed out, and the suspension content of clear water is 10mg/L.
No. 1 degassing vessel that the mud that filter bottom produces enters the hydrocyclone back carries out later separation.The dense mud (solid content is 54%) that the sand that the hydrocyclone bottom produces and efficient deep wimble thickener bottom produce all enters medial launder, pump into vibrating-dewatering screen through No. 5 pumps, No. 1 degassing vessel that the mud that its underpart produces enters the hydrocyclone back carries out later separation, the water ratio that its top produces dry sand is 15%, firmly be not held in the hand and can extrude water, can transport factory with automobile and sell.
Embodiment 7
Fluorite flotation waste water (suspension content of fluorite flotation waste water is 47620mg/L) is realized separating of sand and mud with No. 1 pump flow suction hydrocyclone with 40 cubes m/hs; From the top mud out of hydrocyclone through No. 1 degassing vessel degasification, the mud that vibrating-dewatering screen and strainer are discharged enters No. 1 degassing vessel degasification, then pump into efficient deep wimble thickener through No. 2 pumps, its top thin mud (solid content is 4%) out is through No. 2 degassing vessel degasification, per hour being added in simultaneously and being dissolved into concentration in the coagulating agent stirred pot is 100 liters of 1.5% liquor ferri trichloridis, after No. 3 pumps pump into strainer, in the input duct of strainer, per hour be added in through No. 4 pumps that to be dissolved into concentration in the flocculation agent stirred pot be 400 liters of 0.1% non-ionic polyacrylamide solution, in strainer, flocculate, precipitation, filter, clear water reclaims for flotation and ball milling after the top outlet of strainer is flowed out, and the suspension content of clear water is 5mg/L.
No. 1 degassing vessel that the mud that filter bottom produces enters the hydrocyclone back carries out later separation.The dense mud (solid content is 51.5%) that the sand that the hydrocyclone bottom produces and efficient deep wimble thickener bottom produce all enters medial launder, pump into vibrating-dewatering screen through No. 5 pumps, No. 1 degassing vessel that the mud that its underpart produces enters the hydrocyclone back carries out later separation, the water ratio that its top produces dry sand is 13.8%, firmly be not held in the hand and can extrude water, can transport factory with automobile and sell.
Embodiment 8
Fluorite flotation waste water (suspension content of fluorite flotation waste water is 47200mg/L) is realized separating of sand and mud with No. 1 pump flow suction hydrocyclone with 40 cubes m/hs; From the top mud out of hydrocyclone through No. 1 degassing vessel degasification, the mud that vibrating-dewatering screen and strainer are discharged enters No. 1 degassing vessel degasification, then pump into efficient deep wimble thickener through No. 2 pumps, its top thin mud (solid content is 5%) out is through No. 2 degassing vessel degasification, per hour being added in simultaneously and being dissolved into concentration in the coagulating agent stirred pot is 100 liters of 1.5% liquor ferri trichloridis, after No. 3 pumps pump into strainer, in the input duct of strainer, per hour be added in through No. 4 pumps that to be dissolved into concentration in the flocculation agent stirred pot be 300 liters of 0.1% cationic polyacrylamide solution, in strainer, flocculate, precipitation, filter, clear water reclaims for flotation and ball milling after the top outlet of strainer is flowed out, and the suspension content of clear water is 5mg/L.
No. 1 degassing vessel that the mud that filter bottom produces enters the hydrocyclone back carries out later separation.The dense mud (solid content is 51%) that the sand that the hydrocyclone bottom produces and efficient deep wimble thickener bottom produce all enters medial launder, pump into vibrating-dewatering screen through No. 5 pumps, No. 1 degassing vessel that the mud that its underpart produces enters the hydrocyclone back carries out later separation, the water ratio that its top produces dry sand is 14.8%, firmly be not held in the hand and can extrude water, can transport factory with automobile and sell.
Embodiment 9
Fluorite flotation waste water (suspension content of fluorite flotation waste water is 48920mg/L) is realized separating of sand and mud with No. 1 pump flow suction hydrocyclone with 40 cubes m/hs; From the top mud out of hydrocyclone through No. 1 degassing vessel degasification, the mud that vibrating-dewatering screen and strainer are discharged enters No. 1 degassing vessel degasification, then pump into efficient deep wimble thickener through No. 2 pumps, its top thin mud (solid content is 2.3%) out is through No. 2 degassing vessel degasification, per hour being added in simultaneously and being dissolved into concentration in the coagulating agent stirred pot is 100 liters of 1.5% polymeric aluminum chlorides solutions, after No. 3 pumps pump into strainer, in the input duct of strainer, per hour be added in through No. 4 pumps that to be dissolved into concentration in the flocculation agent stirred pot be 350 liters of 0.1% amphiprotic polyacrylamide solution, in strainer, flocculate, precipitation, filter, clear water reclaims for flotation and ball milling after the top outlet of strainer is flowed out, and the suspension content of clear water is 8mg/L.
No. 1 degassing vessel that the mud that filter bottom produces enters the hydrocyclone back carries out later separation.The dense mud (solid content is 52%) that the sand that the hydrocyclone bottom produces and efficient deep wimble thickener bottom produce all enters medial launder, pump into vibrating-dewatering screen through No. 5 pumps, No. 1 degassing vessel that the mud that its underpart produces enters the hydrocyclone back carries out later separation, the water ratio that its top produces dry sand is 14.9%, firmly be not held in the hand and can extrude water, can transport factory with automobile and sell.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not breaking away from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (9)
1. a fluorite flotation waste water treatment process is characterized in that, may further comprise the steps:
In the fluorite flotation waste water suction hydrocyclone, realize separating of sand and mud;
Out mud enters No. 1 degassing vessel degasification from hydrocyclone, and the mud that vibrating-dewatering screen and strainer are discharged enters No. 1 degassing vessel degasification, then is extracted in the efficient deep wimble thickener, and mud is being separated into thin mud and dense mud in efficient deep wimble thickener;
Out dense mud enters medial launder from efficient deep wimble thickener, and hydrocyclone sand out suction vibrating-dewatering screen together; Through the upper dry sand that forms of the processing sieve of vibrating-dewatering screen, sieve is lower to form mud, and mud enters No. 1 degassing vessel and carries out later separation;
Out thin mud enters No. 2 degassing vessel degasification from efficient deep wimble thickener, with coagulating agent suction strainer; Flocculation agent adds in front 10 ~ 30 meters input duct of strainer fluid inlet, coagulating agent, flocculation agent and waste water are mixed first in input duct, then in strainer, flocculate, precipitate, filter, clear water reclaims after the top outlet of strainer is flowed out, and the mud that filter bottom is discharged enters No. 1 degassing vessel and carries out later separation.
2. fluorite flotation waste water treatment process according to claim 1, it is characterized in that: the solid content of described thin mud is 0.8 ~ 6%.
3. fluorite flotation waste water treatment process according to claim 1, it is characterized in that: the solid content of described dense mud is 50 ~ 60%.
4. fluorite flotation waste water treatment process according to claim 1, it is characterized in that: described coagulating agent is selected from ferrous sulfate, polymerize aluminum chloride, aluminium iron polychloride or iron trichloride.
5. according to claim 1 or 4 described fluorite flotation waste water treatment process, it is characterized in that: the concentration of described coagulating agent is 1 ~ 3%.
6. fluorite flotation waste water treatment process according to claim 1, it is characterized in that: described flocculation agent is selected from cationic polyacrylamide, anionic polyacrylamide, amphiprotic polyacrylamide or non-ionic polyacrylamide.
7. according to claim 1 or 6 described fluorite flotation waste water treatment process, it is characterized in that: the concentration of described flocculation agent is 0.1 ~ 0.2%.
8. fluorite flotation waste water treatment process according to claim 1, it is characterized in that: the suspension content of described clear water is 1 ~ 10mg/L.
9. fluorite flotation waste water treatment process according to claim 1, it is characterized in that: the water ratio of described dry sand is 13 ~ 15%.
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| CN201310034228.8A CN103058422B (en) | 2013-01-29 | 2013-01-29 | Technique for fluorite mine floatation sewage treatment |
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| CN201310034228.8A CN103058422B (en) | 2013-01-29 | 2013-01-29 | Technique for fluorite mine floatation sewage treatment |
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| CN103058422A true CN103058422A (en) | 2013-04-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105645734A (en) * | 2016-03-09 | 2016-06-08 | 旌德县圣裕莹石加工有限公司 | Sludge dewatering and circulating equipment for fluorite tail pulp treatment and application of sludge dewatering and circulating equipment |
| CN108238688A (en) * | 2016-12-23 | 2018-07-03 | 张东升 | A kind of tails dry discharge treatment method |
| JP2021529222A (en) * | 2018-12-05 | 2021-10-28 | グアンドォン ティエンアン ニュー マテリアル カンパニー リミテッド | Polypropylene film, polypropylene composite film |
| CN115583752A (en) * | 2022-10-14 | 2023-01-10 | 武汉理工大学 | Method for treating fluorine-containing acidic wastewater in grading manner and recycling calcium fluoride resources |
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| CN102432124A (en) * | 2011-11-04 | 2012-05-02 | 招金有色矿业有限公司 | Process for comprehensively treating and recycling fluorite gangue water |
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| JP2003117565A (en) * | 2001-10-16 | 2003-04-22 | Kurita Water Ind Ltd | Method for treating fluorine-containing water and equipment therefor |
| CN101468857A (en) * | 2007-12-25 | 2009-07-01 | 陈艳锋 | Sewage treatment method for fluorite concentration plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105645734A (en) * | 2016-03-09 | 2016-06-08 | 旌德县圣裕莹石加工有限公司 | Sludge dewatering and circulating equipment for fluorite tail pulp treatment and application of sludge dewatering and circulating equipment |
| CN108238688A (en) * | 2016-12-23 | 2018-07-03 | 张东升 | A kind of tails dry discharge treatment method |
| JP2021529222A (en) * | 2018-12-05 | 2021-10-28 | グアンドォン ティエンアン ニュー マテリアル カンパニー リミテッド | Polypropylene film, polypropylene composite film |
| JP7183300B2 (en) | 2018-12-05 | 2022-12-05 | グアンドォン ティエンアン ニュー マテリアル カンパニー リミテッド | polypropylene film, polypropylene composite film |
| CN115583752A (en) * | 2022-10-14 | 2023-01-10 | 武汉理工大学 | Method for treating fluorine-containing acidic wastewater in grading manner and recycling calcium fluoride resources |
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| CN103058422B (en) | 2014-06-11 |
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