CN202898147U - Well drilling waste water flocculating settling and desliming treatment device - Google Patents
Well drilling waste water flocculating settling and desliming treatment device Download PDFInfo
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- CN202898147U CN202898147U CN 201220402108 CN201220402108U CN202898147U CN 202898147 U CN202898147 U CN 202898147U CN 201220402108 CN201220402108 CN 201220402108 CN 201220402108 U CN201220402108 U CN 201220402108U CN 202898147 U CN202898147 U CN 202898147U
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Abstract
The utility model relates to a well drilling waste water flocculating settling and desliming treatment device. The well drilling waste water flocculating settling and desliming treatment device comprises a flocculating reaction tank provided with a stirring device, as well as a flocculating settling tank, an intermediate tank, a sludge tank and a clear water tank which are arranged in a well field, wherein the flocculating reaction tank is provided with a water supply port communicated with a water feeding port, a dosing port and a water drainage port which are arranged at the outside; a first water pump is arranged between the flocculating settling tank and the flocculating reaction tank; the flocculating settling tank is communicated with the water inlet end of the first water pump; and the water outlet end of the first water pump is communicated with the flocculating reaction tank; the flocculating reaction tank is communicated with the flocculating settling tank and the intermediate tank which are arranged in the well field to constitute water circulation, so that a water body is stored in a cooperative manner, the defects that transportation and uniform stirring are difficult when the volume of the flocculating reaction tank is too large are reduced, and the volume required for the flocculating settling tank is also reduced; and furthermore, the water body constituted by well drilling waste water and a flocculating agent is always in a flowing state, the dissolution efficiency of the flocculating agent is improved, and the utilization rate of the flocculating agent which is slight soluble or insoluble is further increased.
Description
Technical field
The utility model relates to a kind of waste disposal plant, particularly a kind of well-drilling waste water flocculation sediment desliming treatment unit.
Background technology
In the process of oilfield drilling, the waste water that the mud during owing to tripping operation on the seepage of the loss of mud, mud circulating system, flushing uphole equipment and the drilling tool and greasy dirt form is called well-drilling waste water.Well-drilling waste water is the important source of pollution of petroleum prospecting enterprise, well-drilling waste water have a little many, wide, pollutant kind is complicated, high stability, intermittent discharging and discharging characteristics such as difficult control, is petroleum industry than one of water pollution source of unmanageable and disposal.
Well-drilling waste water contains the various ingredients in the mud, form complicated, principal pollutant have suspended substance, heavy metal, oil, phenol, sulfide etc., well-drilling waste water totally has the colourity height, suspension content is high, the CODcr value is high, the characteristics that its organic biodegradability is poor, pollutent mainly contain following several:
(1) CODcr: from various organic sludge treatment agents and tensio-active agent such as tannin, pore forming material and defoamer etc.;
(2) oil: from oil-base mud, diesel coolant, drilling unit wash-down water etc.;
(3) heavy metal: mainly by the Cr6+ that adds inorganic treatment additive chromic salt introducing, the chromic salt ligninsulfonate is also introduced chromium ion in addition, and other source of heavy metal pollution also has Pb2+, Cd2+ plasma.
Prior art adopts the mode of flocculation to purify usually, process well-drilling waste water, see also the 387th page～390 pages disclosed documents " well-drilling waste water and acid fracturing operation wastewater Processing Technology Research progress " on December 25th, 2002 " oilfield chemistry ", large for flowability, cycle is short, waste water quality changes well-drilling waste water greatly, usually adopt flocculation, sedimentation, filter, the modes such as absorption are processed, be the disclosed well-drilling waste water treatment process of 201010209919.3 Chinese invention patent " treatment process of the poly-sulphur mud drilling waste water of a kind of deep-well " such as application number, by flocculation, and be aided with adsorption and oxidation technique the impurity in the well-drilling waste water is more efficiently removed.
The research that recycles after processing for well-drilling waste water at present still belongs to blank at home, being used for slurry after well-drilling waste water is processed is the main application of well-drilling waste water, drilling well with slurry water there is no national standard at present, requires chroma in waste water to need less than 300, to the CODcr no requirement (NR) during wellbore construction.Because drilling depth is darker, the well-drilling waste water amount that produces is larger, contain a large amount of suspended substances and oily substance in the waste water, colourity is greater than 5000, waste water COD cr10000～40000mg/L, and good stability, the mud-water separation difficulty, cause the considerable part sewage can not reuse, must build enough ponds and store drilling waste water.
The existing device that utilizes flocculence to process well-drilling waste water is generally and is provided with the waste water intake line, the waste water treatment tank of the intake line that makes up a prescription, delivery conduit and whipping appts, well-drilling waste water compiles after the wastewater disposal basin, entered in the waste water treatment tank after flocculation agent stirs, flocculates by the waste water intake line, be expelled to settling bowl by delivery conduit and carry out natural subsidence, there is following weak point in it:
1, the flocculation agent use-pattern is generally to the wastewater disposal basin of storage well-drilling waste water and directly adds flocculation agent, well-drilling waste water and flocculation agent react in wastewater disposal basin, because wastewater disposal basin is built at situ of drilling well temporarily, whipping appts is not installed usually, flocculation agent and well-drilling waste water reaction times are longer, and have the inadequate problem of reaction.
2, when adding such as low solubility flocculation agents such as white limes, because its solubleness is low, usually need add excessive flocculation agent, a large amount of flocculation agents are deposited in the wastewater disposal basin, have both caused the flocculation agent waste, have taken again the wastewater disposal basin pond and have held.
3, add the flocculation agent processing to well-drilling waste water and can produce a large amount of precipitations, and the mode that adopts at present is to build enough storage pools to store waste water and precipitation, this causes well-drilling waste water storage pool land occupation many, waste water and precipitation are mixed storage in the storage pool simultaneously, store for a long time the risk that seepage occurs, cause environmental pollution.
4, owing to the soluble material that contains in the well-drilling waste water than multipolarity, only adopting conventional flocculation agent to process well-drilling waste water is difficult to the pollutent in the waste water and colourity are effectively processed, well-drilling waste water after the processing can not satisfy the requirement of wellbore construction, can not reuse.
The storage pool of revising when 5, oil-gas field is processed well-drilling waste water within the drilling well phase at present need take a large amount of surrounding grounds, causes the project cost of land too high, and the Sewage Environment Pollution risk of storage is large, and in addition, the precipitation that forms after processing also is difficult to process.
The utility model content
The technical problems to be solved in the utility model is to overcome the above-mentioned deficiency of prior art, the well-drilling waste water flocculation sediment desliming treatment unit that a kind of land occupation is few, the flocculation agent utilising efficiency high, treatment effect is good and the rear slag liquid of processing separates is provided, and the well-drilling waste water after the processing can be back to wellbore construction.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of well-drilling waste water flocculation sediment desliming treatment unit, comprise the flocculation reaction tank that is provided with whipping appts and flocculating settling pond, intermediate pool, sludge sump and the water purifying tank that is arranged at the well site, described flocculation reaction tank is provided with and is communicated to outside admission port, dosing mouth and water port, be provided with the first water pump between described flocculating settling pond and the flocculation reaction tank, described flocculating settling pond is communicated with the feed-water end of the first water pump, and the water side of described the first water pump is communicated with described flocculation reaction tank; Be provided with communicating valve between described flocculation sedimentation tank and the intermediate pool, be provided with the second water pump and electrofloatation device between described intermediate pool and the flocculation reaction tank, described electrofloatation device comprises housing, be provided with at least two pole plates in the described housing, described pole plate links to each other with the pulse power, described pole plate is installed on the housing middle part, leave spacing between described pole plate bottom and the housing bottom inwall, described housing internal polar plate region forms electrolysis zone, the pitch area that is positioned at the electrolysis zone below in the described housing is the contraminated zone, the zone that is positioned at the electrolysis zone top in the described housing is clean water area, described intermediate pool is communicated with the feed-water end of the second water pump, and the water side of described the second water pump is communicated with the contraminated zone of electrofloatation device; The bottom of described electrofloatation device is provided with row and becomes silted up mouthful, and described row is become silted up and mouthful is communicated with sludge sump; Described clean water area is provided with water outlet, and described water outlet is communicated with described flocculation reaction tank; Be provided with the water purification delivery conduit between the water side of described the second water pump and the water purifying tank; Described sludge sump is communicated with sludge dewatering equipment, is provided with waterwater entrance and pure water inlet on the described sludge dewatering equipment, is provided with the 3rd water pump between described waterwater entrance and the sludge sump, and described pure water inlet is communicated to water purifying tank.
Adopt such structure, by being communicated with the flocculating settling pond that is arranged at the well site and intermediate pool, the flocculation reaction tank consists of water cycle, the collaborative water body that stores, slowed down and be difficult to the defective of transporting, being difficult to stir when the flocculation reaction tank volume is excessive, also reduced the required volume of flocculation sedimentation tank, and the water body that well-drilling waste water and flocculation agent form is in flow state always, improve the dissolved efficiency of flocculation agent, improved the utilization ratio of the flocculation agent of slightly soluble or indissoluble; Simultaneously, waste water electrolysis and physics sedimentation in electrofloatation device are carried out simultaneously, significantly improved cleaning water, and the waste water Semi-polarity material modification under electrochemical action after processing, flocculation agent be can again add and organism and colourity further removed, recovering and reutilizing waste water after the processing is in wellbore construction, and the mud of generation is easy to storage and security landfill after dewatering by sludge dewatering equipment, and land occupation significantly reduces.
Preferably, the angle of described pole plate and housing bottom surface is 55 °～65 °, and the frequency of the described pulse power is 20kHz～25kHz.Easily be adsorbed in problem on the pole plate for the fine particle that forms after tiny solid impurity in the well-drilling waste water and the impurity metal ion electrolysis, pole plate is obliquely installed and is aided with the vibrations of high-frequency pulse power supply with 55 °～65 ° oblique angle, impurity comes off and is settled down to the contraminated zone with the landing of taking advantage of a situation of the oblique angle of pole plate in pole plate vibrations, has avoided the accumulation of impurity on the pole plate.
Preferably, described flocculation reaction tank comprises the first tank body and the second tank body, described admission port is arranged at the top of the first tank body, described whipping appts is arranged in the first tank body, be provided with middle siphunculus between described the first tank body and the second tank body, one end of described middle siphunculus is communicated to the inside of the first tank body by the side of the first tank body, the other end of described middle siphunculus is communicated to the inside of the second tank body by the top of the second tank body, described water port is arranged at the side of the second tank body, be provided with the secondary reaction water-in on described the second tank body, described secondary reaction water-in is arranged at the side of the second tank body, and tangentially be communicated to the inside of the second tank body.
Preferably, described dosing mouth is connected with dispensation apparatus by dosing pipe, described dispensation apparatus comprises the first dispensing canister and the second dispensing canister, described the first dispensing canister upper top is provided with clear water import and Imported Medicines, described the second dispensing canister is arranged at the below of the first dispensing canister, be provided with mixed medicine agitator in described the first dispensing canister, be provided with the liquid transfer lime between described the first dispensing canister and the second dispensing canister, the sidewall of described the second dispensing canister is provided with medicine liquid outlet, and described medicine liquid outlet is communicated with the dosing mouth of flocculation reaction tank.
Preferably, be provided with the secondary back pipeline between the dosing mouth of described medicine liquid outlet and flocculation reaction tank, described secondary back pipeline comprises the first ball valve and the second ball valve, and the input terminus of the input terminus of described the first ball valve, the second ball valve all is communicated to the inside of the second dispensing canister; The output terminal of described the first ball valve is connected with the first plunger metering pump, the output terminal of described the first plunger metering pump is parallel with delivery conduit and the first return line, described delivery conduit is communicated with the output terminal of the first plunger metering pump with the dosing mouth of flocculation reaction tank, described the first return line is with the internal communication of output terminal and second dispensing canister of described the first plunger metering pump; The output terminal of described the second ball valve is connected with the second plunger metering pump, be provided with the second return line between the output terminal of described the second plunger metering pump and the second dispensing canister, described the second return line is with output terminal and the second dispensing canister internal communication of the second plunger metering pump.
Preferably, described well site is provided with the first skid body and the second skid body, described the first skid body and the second skid body are hollow casing, it is inner that described flocculation reaction tank, electrofloatation device and dispensation apparatus all are arranged at the first skid body, it is inner that described sludge dewatering equipment is arranged at the second skid body, described the first skid body and the second skid body bottom are provided with at least two support posts, are provided with stull between the described support post.
Preferably, described flocculating settling pond comprises landwaste pond, muddy water pond and the reaction settling basin that is arranged at the well site, a described landwaste pond side adjacent with the muddy water pond is provided with at least one connected entrance, described landwaste pond is provided with into the water ramp away from a side in muddy water pond, the bottom surface in described landwaste pond is downward-sloping to the direction of connected entrance along the water inlet ramp, the bottom in described muddy water pond is tapered, it is inner that the feed-water end of described the first water pump is communicated to the muddy water pond, and the feed-water end of the water port of described flocculation reaction tank, the first water pump all is communicated with reaction settling basin.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, by being communicated with the flocculating settling pond that is arranged at the well site and intermediate pool, the flocculation reaction tank consists of water cycle, the collaborative water body that stores, slow down the flocculation reaction tank volume and be difficult to transportation when excessive, the defective that is difficult to stir, also reduced the required volume of flocculation sedimentation tank, and, the water body that well-drilling waste water and flocculation agent form is in flow state always, improved the dissolved efficiency of flocculation agent, and through reaching default equilibrium concentration after the several times circulation, improved the utilization ratio of the flocculation agent of slightly soluble or indissoluble, waste water electrolysis and physics sedimentation in electrofloatation device are carried out simultaneously, significantly improved cleaning water, and the waste water Semi-polarity material modification under electrochemical action after processing, flocculation agent be can again add and organism and colourity further removed, recovering and reutilizing waste water after the processing also can carry out next step advanced treatment to qualified discharge in drilling well with slurry water.(revised context).
2, reduce greatly the well-drilling waste water floor space: the well site is in the landwaste pond of building this treatment process necessity, the muddy water pond, the flocculating settling pond, behind the intermediate pool, need not repair the sewage storage pool of larger volume, according to well-drilling waste water maximum amount of water every day 20m3, drilling well was calculated in 150 days, the waste water of the 3000m3 that has an appointment is produced, if build storage pool, dark 3m calculates by average pond, to take about land area more than 2 mu, and adopt after this technique, the function pond cubic capacity of building is less than 1000m3, calculate by mean depth 3m, only take about 0.5 mu land area, the land seizure area has reduced more than 75%, and this will greatly reduce the cost of land of drilling operation.
3, reduce clear water usage quantity and the complete rear residue wastewater flow rate of drilling well: drilling water needs to use clear water more than 90% at present, only about 10% well-drilling waste water has obtained recycling, in some water-deficient areas, this has greatly restricted carrying out of drilling well work, after adopting this art breading well-drilling waste water, about 90% well-drilling waste water has obtained recycling, and only need replenish about 10% clear water, has reduced greatly the demand to clear water.After the drilling well completion, remaining waste water only is a small amount of waste water that drilling well produces in last treatment cycle, can be pulled to after treatment next situ of drilling well and do the with slurry water simultaneously, also can be transported to concentrate sewage works to process rear discharging up to standard.
The problem that the well-drilling waste water that produces when 4, the invention solves present wellbore construction can't recycle, can be with the maximum recycle of well-drilling waste water, greatly degree has alleviated the environmental risk that well-drilling waste water brings, the core processing equipment that adopts simultaneously is skid mounted equipment, be convenient to transportation, can repeat, repeatedly use, can be used in different drilling wells zone, reduce the environmental protection investments of processing well-drilling waste water.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the structural representation of flocculation reaction tank in the utility model;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the structural representation of chemicals dosing plant among the present invention;
Fig. 5 is the structural representation of electrofloatation device among the present invention.
Reference numeral is as follows: flocculation reaction tank-1; The first tank body-101; The second tank body-102; Whipping appts-1a; Admission port-1b; Dosing mouth-1c; Water port-1d; Flocculating settling pond-2; Landwaste pond-2a; Muddy water pond-2b; Reaction settling basin-2c; Intermediate pool-3; Sludge sump-4; Water purifying tank-5; Dried mud sump-6; The first water pump-6a; The second water pump-6b; The 3rd water pump-6c; Communicating valve-7; Electrofloatation device-8; Housing-8a; Pole plate-8b; Row's silt mouth-8c; Electrolysis zone-9a; Contraminated zone-9b; Clean water area-9c; Water purification delivery conduit-10; Sludge dewatering equipment-11; Middle siphunculus-12; Secondary reaction water-in-13; The first dispensing canister-141; The second dispensing canister-142; Mixed medicine agitator-15; The first skid body-161; The second skid body-162; Support post-17; Stull-18; Connected entrance-19; Water inlet ramp-20; Secondary back pipeline-21; The first ball valve-22a; The second ball valve-22b; The first plunger metering pump-23a; The second plunger metering pump-23b; Delivery conduit-24; The first return line-25a; The second return line-25b.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Embodiment of the present utility model is not limited to following examples, all belongs within the protection domain of the present utility model in the various variations of making under the prerequisite that does not break away from the utility model aim.
Embodiment 1
Extremely shown in Figure 5 such as Fig. 1, well-drilling waste water flocculation sediment desliming treatment unit comprises the flocculation reaction tank 1 that is provided with whipping appts 1a in the present embodiment, and the flocculating settling pond 2 that is arranged at the well site, intermediate pool 3, sludge sump 4, water purifying tank 5, and dried mud sump 6, described flocculation reaction tank 1 is provided with and is communicated to outside admission port 1b, dosing mouth 1c and water port 1d, be provided with the first water pump 6a between described flocculating settling pond 2 and the flocculation reaction tank 1, described flocculating settling pond 2 is communicated with the feed-water end of the first water pump 6a, the water side of described the first water pump 6a is communicated with described flocculation reaction tank 1, can the water body in the flocculating settling pond 2 be pumped in the flocculation reaction tank 1 by the first water pump 6a.Be provided with communicating valve 7 between described flocculation sedimentation tank and the intermediate pool 3, after the liquid sedimentation in the flocculation sedimentation tank and the preset water level of appreciating, open liquid separation that communicating valve 7 can be limpider with the upper strata to intermediate pool 3, be provided with the second water pump 6b and electrofloatation device 8 between described intermediate pool 3 and the flocculation reaction tank 1, described electrofloatation device 8 comprises housing 8a, be provided with at least two pole plate 8b in the described housing 8a, the angle of described pole plate 8b and housing 8a bottom surface is 55 °, the frequency of the described pulse power is 20kHz, impurity comes off and is settled down to contraminated zone 9b with the landing of taking advantage of a situation of the oblique angle of pole plate 8b in pole plate 8b vibrations, has avoided the accumulation of the upper impurity of pole plate 8b.Described pole plate 8b links to each other with the pulse power, described pole plate 8b is installed on housing 8a middle part, leave spacing between described pole plate 8b bottom and the housing 8a bottom interior wall, described housing 8a internal polar plate 8b region forms electrolysis zone 9a, the pitch area that is positioned at electrolysis zone 9a below in the described housing 8a is contraminated zone 9b, the zone that is positioned at electrolysis zone 9a top in the described housing 8a is clean water area 9c, described intermediate pool 3 is communicated with the feed-water end of the second water pump 6b, and the water side of described the second water pump 6b is communicated with the contraminated zone 9b of electrofloatation device 8; The bottom of described electrofloatation device 8 is provided with the row mouthful 8c that becomes silted up, and the described row mouthful 8c that becomes silted up is communicated with sludge sump 4; Described clean water area 9c is provided with water outlet, and described water outlet is communicated with described flocculation reaction tank 1; Be provided with water purification delivery conduit 10 between the water side of described the second water pump 6b and the water purifying tank 5; Adopt such structure, the water body that can according to circumstances the second water pump 6b be extracted out from intermediate pool 3 directly exports in the water purifying tank 5 and recycles.Described sludge sump 4 is communicated with sludge dewatering equipment 11, is provided with waterwater entrance and pure water inlet on the described sludge dewatering equipment 11, is provided with the 3rd water pump 6c between described waterwater entrance and the sludge sump 4, and described pure water inlet is communicated to water purifying tank 5.Adopt such structure, the mud that produces is stored separately respectively by sludge dewatering equipment 11 dehydration rear formation body refuses and water purification, be easy to discharge and recovery, and save the space.
Utilize present embodiment well-drilling waste water flocculation sediment desliming treatment unit to process the method for well-drilling waste water, comprise following step:
A, with well-drilling waste water and flocculation agent be added to mix in the flocculation reaction tank 1 after, export in flocculating settling pond 2 and the intermediate pool 3 and left standstill 12～16 hours;
B, by the second water pump 6b the liquid in the intermediate pool 3 are pumped in the contraminated zone 9b of electrofloatation device 8, the starting impulse power supply carries out electrolysis, after the electrolysis liquid among the clean water area 9c is directed into and carries out the secondary flocculation in the flocculation reaction tank 1, mud among the 9b of contraminated zone is directed in the sludge sump 4, and carries out slag liquid by sludge dewatering equipment 11 and separate;
C, the water purification that separation in the water purification after the secondary flocculation and the sludge dewatering equipment 11 is obtained input in the water purifying tank 5.
Among the step a of present embodiment, first calcium hydroxide or calcium oxide are added in the pending poly-sulphur mud sewage with powder or solution form, mix 5 ~ 15 minutes, again ferric sulfate or ferrous sulfate are added in the sewage after the above-mentioned processing, stir flocculation 5 ~ 15 minutes, at last, add polyacrylamide in the sewage after above-mentioned steps is processed.Lower embodiment all adopts just poly-sulphur mud sewage disposal of aforesaid method.Get drilling waste water analysis, obtain the sewage related data, after adopting poly-sulphur mud provided by the invention sewage disposal, treatment process adopts the method in the embodiment, the related data of the sewage after the analyzing and processing, concrete, choose the poly-sulphur mud sewage sample I1L in somewhere, Sichuan, analyze the COD in the sewage
CrMeasure colourity with usefulness extension rate method, then the coagulating agent that is sequentially added into the poly-sulphur mud sewage of processing provided by the invention is processed it, wherein the calcium hydroxide add-on is 8g, the ferrous sulfate add-on is 17.5g, and then to the sewage adding 100mg polyacrylamide processing after processing by above-mentioned treatment step, the sewage index after the analyzing and processing is as shown in table 1.
Table 1 is parameter comparison table before and after the present embodiment sewage disposal
Embodiment 2
Extremely shown in Figure 5 such as Fig. 1, in the present embodiment, flocculation reaction tank 1 comprises the first tank body 101 and the second tank body 102, described admission port 1b is arranged at the top of the first tank body 101, described whipping appts 1a is arranged in the first tank body 101, be provided with middle siphunculus 12 between described the first tank body 101 and the second tank body 102, one end of described middle siphunculus 12 is communicated to the inside of the first tank body 101 by the side of the first tank body 101, the other end of described middle siphunculus 12 is communicated to the inside of the second tank body 102 by the top of the second tank body 102, described water port 1d is arranged at the side of the second tank body 102, be provided with secondary reaction water-in 13 on described the second tank body 102, described secondary reaction water-in 13 is arranged at the side of the second tank body 102, and tangentially be communicated to the inside of the second tank body 102.Adopt such structure, not only guaranteed that slightly soluble or indissoluble medicine fully stirred, but also can be spilled over to the second dispensing canister 142 interior further slowly-releasings behind mixing in the first dispensing canister 141, when having guaranteed the first dispensing canister 141 interior liquid fluidity, increased dissolution time and the dissolving probability of coagulating agent in water body.
In the present embodiment, the angle of pole plate 8b and housing 8a bottom surface is 65 °, and the frequency of the pulse power is 25kHz.
All the other structures and the method for utilizing present embodiment well-drilling waste water flocculation sediment desliming treatment unit to process well-drilling waste water see also embodiment 1.
In the present embodiment, step a calcium hydroxide add-on is 8g, and the ferrous sulfate add-on is 12g, and then the sewage after processing by above-mentioned treatment step is added the processing of 500mg polyacrylamide, and the sewage index after the analyzing and processing is as shown in table 2.
Table 2 is parameter comparison table before and after the present embodiment sewage disposal
Embodiment 3
Extremely shown in Figure 5 such as Fig. 1, in the present embodiment well-drilling waste water flocculation sediment desliming treatment unit, described dosing mouth 1c is connected with dispensation apparatus by dosing pipe, described dispensation apparatus comprises the first dispensing canister 141 and the second dispensing canister 142, described the first dispensing canister 141 upper tops are provided with clear water import and Imported Medicines, described the second dispensing canister 142 is arranged at the below of the first dispensing canister 141, be provided with mixed medicine agitator 15 in described the first dispensing canister 141, be provided with the liquid transfer lime between described the first dispensing canister 141 and the second dispensing canister 142, the sidewall of described the second dispensing canister 142 is provided with medicine liquid outlet, and described medicine liquid outlet is communicated with the dosing mouth 1c of flocculation reaction tank 1.Be provided with secondary back pipeline 21 between the dosing mouth 1c of medicine liquid outlet and flocculation reaction tank 1, described secondary back pipeline 21 comprises the first ball valve 22a and the second ball valve 22b, and the input terminus of the input terminus of described the first ball valve 22a, the second ball valve 22b all is communicated to the inside of the second dispensing canister 142; The output terminal of described the first ball valve 22a is connected with the first plunger metering pump 23a, the output terminal of described the first plunger metering pump 23a is parallel with delivery conduit 24 and the first return line 25a, described delivery conduit 24 is communicated with the output terminal of the first plunger metering pump 23a with the dosing mouth 1c of flocculation reaction tank 1, described the first return line 25a is with the internal communication of output terminal and the second dispensing canister 142 of described the first plunger metering pump 23a; The output terminal of described the second ball valve 22b is connected with the second plunger metering pump 23b, be provided with the second return line 25b between the output terminal of described the second plunger metering pump 23b and the second dispensing canister 142, described the second return line 25b is with output terminal and the second dispensing canister 142 internal communication of the second plunger metering pump 23b.Adopt such structure, can be as required adjust the dissolution time of coagulating agent in water body and dissolving probability, simultaneously, return line passes back into current in the second dispensing canister 142 and the water bodys in the second dispensing canister 142 are played washes away uniform effect.
All the other structures and the method for utilizing present embodiment well-drilling waste water flocculation sediment desliming treatment unit to process well-drilling waste water see also embodiment 2.
In the present embodiment, step a calcium hydroxide add-on is 8g, and the ferrous sulfate add-on is 30g, and then the sewage after processing by above-mentioned treatment step is added the processing of 960mg polyacrylamide, and the sewage index after the analyzing and processing is as shown in table 2.
Table 3 is parameter comparison table before and after the present embodiment sewage disposal
Embodiment 4
Extremely shown in Figure 5 such as Fig. 1, well site described in the present embodiment is provided with the first skid body 161 and the second skid body 162, described the first skid body 161 and the second skid body 162 are hollow casing, described flocculation reaction tank 1, electrofloatation device 8 and dispensation apparatus all are arranged at the first skid body 161 inside, described sludge dewatering equipment 11 is arranged at the second skid body 162 inside, described the first skid body 161 and the second skid body 162 bottoms are provided with two support posts 17, are provided with stull 18 between the described support post 17.Adopt such structure, at first determine to carry out the position that well-drilling waste water is processed, then support is arranged on this position, after support has set, again the skid body is arranged on the support, arranging like this guaranteed the stable of skid body structure, guaranteed simultaneously the position stability of well-drilling waste water treatment unit, avoid the impact such as factors such as floor surface infiltrations, if transportation well-drilling waste water treatment unit then directly transports casing, guaranteed that on the one hand the safety of the device in the casing is with stable, on the other hand so that transportation becomes simple, in all the other embodiments, also one of the quantity of support post 17, three or more.
All the other structures and the method for utilizing present embodiment well-drilling waste water flocculation sediment desliming treatment unit to process well-drilling waste water see also embodiment 3.
Embodiment 5
Extremely shown in Figure 5 such as Fig. 1, the pond of flocculating settling described in the present embodiment 2 comprises the landwaste pond 2a that is arranged at the well site, muddy water pond 2b and reaction settling basin 2c, the side that described landwaste pond 2a is adjacent with muddy water pond 2b is provided with three connected entrances 19, in all the other embodiments, the quantity of connected entrance 19 can be one, two or more, just repeat no more at this, described landwaste pond 2a is provided with into water ramp 20 away from the side of muddy water pond 2b, the bottom surface of described landwaste pond 2a is downward-sloping to the direction of connected entrance 19 along water inlet ramp 20, the bottom of described muddy water pond 2b is tapered, it is inner that the feed-water end of described the first water pump 6a is communicated to muddy water pond 2b, the water port 1d of described flocculation reaction tank 1, the feed-water end of the first water pump 6a all is communicated with reaction settling basin 2c.Well-drilling waste water is directed into after the 2a of landwaste pond, the silt that wherein proportion is larger precipitates in the 2a of landwaste pond, and all the other waste water flow automatically to muddy water pond 2b, can effectively well-drilling waste water be separated with the waste water for the treatment of subsequent disposal that passes through sediment deposition, be convenient to directly extract and process before pending waste water recycles, and be easy to the settling water conservancy diversion with arranging at the bottom of the pond after the gradient and be easy to follow-up desilting blowdown.
All the other structures see also embodiment 4.
Utilize present embodiment well-drilling waste water flocculation sediment desliming treatment unit to process the method for well-drilling waste water, comprise following several step:
A, well-drilling waste water inject in the landwaste pond 2a and are spilled in the 2b of muddy water pond after the physical sedimentation, open the first water pump 6a the well-drilling waste water in the 2b of muddy water pond is pumped into flocculation reaction tank 1, the liquid after mixing to flocculation reaction tank 1 interior adding flocculation agent exports to reaction settling basin 2c;
After liquid leaves standstill 12 hours among b, the reaction settling basin 2c, supernatant liquid is entered in the intermediate pool 3, then the excess sludge among the reaction settling basin 2c being carried out slag liquid by sludge dewatering equipment 11 separates, mud after the dehydration enters the dried mud sump 6 that is arranged at the well site, and the liquid that sludge dewatering produces enters intermediate pool 3;
C, by the second water pump 6b the liquid in the intermediate pool 3 are pumped in the contraminated zone 9b of electrofloatation device 8, the starting impulse power supply carries out electrolysis, after the electrolysis liquid among the clean water area 9c is directed in the flocculation reaction tank 1, and the adding flocculation agent carries out the secondary flocculation, liquid after the secondary flocculation is imported flocculating settling pond 2, the mud among the 9b of contraminated zone is directed in the sludge sump 4;
D, with after liquid leaves standstill 12 hours in the flocculating settling pond 2, supernatant liquid is entered intermediate pool 3, then the excess sludge in the flocculating settling pond 2 is pumped into sludge sump 4 with the 3rd water pump 6c;
Water purification in e, the intermediate pool 3 pumps into water purifying tank 5 with the second water pump 6b, and the mud in the sludge sump 4 is pumped into sludge dewatering equipment 11 with the 3rd water pump 6c, and the mud after the dehydration enters dried mud sump 6, and the liquid that sludge dewatering produces enters water purifying tank 5.
Step f, with the liquid in the water purifying tank 5 as the operation such as drilling well with slurry water.
As preferably, the total time of the operating time of above-mentioned each step is 24 hours, muddy water pond 2b, reaction settling basin 2c, intermediate pool 3, water purifying tank 5 volumes are 1 times of the maximum generation of well-drilling waste water in the well site five days, the sludge sump volume is 1 times of the maximum generation of well site well-drilling waste water every day, and dried mud sump 6 volumes are 1 times of the sludge quantity processing Total Water and produce.
In the present embodiment, the sludge yield (water ratio 80%) of processing Total Water is about processes 10% of Total Water volume.Actually build that the pond holds and the pond body is arranged and needed to determine according to well site demand and operational requirement, Chi Rong had larger reduction more originally, reduction is decided on well depth, the water purification water yield of processing the reuse capable of circulation that obtains behind the well-drilling waste water is about 90% of well-drilling waste water water yield volume, has the mud (water ratio 80%) that accounts for the well-drilling waste water water yield 10% volume to produce.
Embodiment 6
To shown in Figure 5, the structure of well-drilling waste water flocculation sediment desliming treatment unit sees also embodiment 5 in the present embodiment such as Fig. 1, utilizes present embodiment well-drilling waste water flocculation sediment desliming treatment unit to process the method for well-drilling waste water, comprises following several step:
A, well-drilling waste water inject in the landwaste pond 2a and are spilled in the 2b of muddy water pond after the physical sedimentation, open the first water pump 6a the well-drilling waste water in the 2b of muddy water pond is pumped into flocculation reaction tank 1, the liquid after mixing to flocculation reaction tank 1 interior adding flocculation agent exports to reaction settling basin 2c;
After liquid leaves standstill 16 hours among b, the reaction settling basin 2c, supernatant liquid is entered in the intermediate pool 3, then the excess sludge among the reaction settling basin 2c is carried out slag liquid by sludge dewatering equipment 11 and separate, the mud after the dehydration enters dried mud sump 6, and the liquid that sludge dewatering produces enters intermediate pool 3;
C, by the second water pump 6b the liquid in the intermediate pool 3 are pumped in the contraminated zone 9b of electrofloatation device 8, the starting impulse power supply carries out electrolysis, after the electrolysis liquid among the clean water area 9c is directed in the flocculation reaction tank 1, and the adding flocculation agent carries out the secondary flocculation, liquid after the secondary flocculation is imported flocculating settling pond 2, the mud among the 9b of contraminated zone is directed in the sludge sump 4;
D, with after liquid leaves standstill 16 hours in the flocculating settling pond 2, supernatant liquid is entered intermediate pool 3, then the excess sludge in the flocculating settling pond 2 is pumped into sludge sump 4 with the 3rd water pump 6c;
Water purification in e, the intermediate pool 3 pumps into water purifying tank 5 with the second water pump 6b, and the mud in the sludge sump 4 is pumped into sludge dewatering equipment 11 with the 3rd water pump 6c, and the mud after the dehydration enters dried mud sump 6, and the liquid that sludge dewatering produces enters water purifying tank 5.
Step f, with the liquid in the water purifying tank 5 as the operation such as drilling well with slurry water.
As preferably, the total time of the operating time of above-mentioned each step is 24 hours, muddy water pond 2b, reaction settling basin 2c, intermediate pool 3, water purifying tank 5 volumes are 1.5 times of the maximum generation of well-drilling waste water in the well site five days, sludge sump 4 volumes are 1.5 times of the maximum generation of well site well-drilling waste water every day, and the volume of dried mud sump 6 is 1.5 times of the sludge quantity processing Total Water and produce.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (7)
1. well-drilling waste water flocculation sediment desliming treatment unit, it is characterized in that: comprise the flocculation reaction tank (1) that is provided with whipping appts (1a), and the flocculating settling pond (2) that is arranged at the well site, intermediate pool (3), sludge sump (4), and water purifying tank (5), described flocculation reaction tank (1) is provided with and is communicated to outside admission port (1b), dosing mouth (1c) and water port (1d), be provided with the first water pump (6a) between described flocculating settling pond (2) and the flocculation reaction tank (1), described flocculating settling pond (2) is communicated with the feed-water end of the first water pump (6a), and the water side of described the first water pump (6a) is communicated with described flocculation reaction tank (1); Be provided with communicating valve (7) between described flocculation sedimentation tank and the intermediate pool (3), be provided with the second water pump (6b) and electrofloatation device (8) between described intermediate pool (3) and the flocculation reaction tank (1), described electrofloatation device (8) comprises housing (8a), be provided with at least two pole plates (8b) in the described housing (8a), described pole plate (8b) links to each other with the pulse power, described pole plate (8b) is installed on housing (8a) middle part, leave spacing between described pole plate (8b) bottom and housing (8a) bottom interior wall, described housing (8a) internal polar plate (8b) region forms electrolysis zone (9a), the pitch area that is positioned at electrolysis zone (9a) below in the described housing (8a) is contraminated zone (9b), the zone that is positioned at electrolysis zone (9a) top in the described housing (8a) is clean water area (9c), described intermediate pool (3) is communicated with the feed-water end of the second water pump (6b), and the water side of described the second water pump (6b) is communicated with the contraminated zone (9b) of electrofloatation device (8); The bottom of described electrofloatation device (8) is provided with row and becomes silted up mouthful (8c), described row become silted up mouthful (8c) be communicated with sludge sump (4); Described clean water area (9c) is provided with water outlet, and described water outlet is communicated with described flocculation reaction tank (1); Be provided with water purification delivery conduit (10) between the water side of described the second water pump (6b) and the water purifying tank (5); Described sludge sump (4) is communicated with sludge dewatering equipment (11), described sludge dewatering equipment is provided with waterwater entrance and pure water inlet on (11), be provided with the 3rd water pump (6c) between described waterwater entrance and the sludge sump (4), described pure water inlet is communicated to water purifying tank (5).
2. well-drilling waste water flocculation sediment desliming treatment unit according to claim 1 is characterized in that: described pole plate (8b) is 55 °～65 ° with the angle of housing (8a) bottom surface, and the frequency of the described pulse power is 20kHz～25kHz.
3. well-drilling waste water flocculation sediment desliming treatment unit according to claim 1, it is characterized in that: described flocculation reaction tank (1) comprises the first tank body (101) and the second tank body (102), described admission port (1b) is arranged at the top of the first tank body (101), described whipping appts (1a) is arranged in the first tank body (101), be provided with middle siphunculus (12) between described the first tank body (101) and the second tank body (102), one end of described middle siphunculus (12) is communicated to the inside of the first tank body (101) by the side of the first tank body (101), the other end of described middle siphunculus (12) is communicated to the inside of the second tank body (102) by the top of the second tank body (102), described water port (1d) is arranged at the side of the second tank body (102), be provided with secondary reaction water-in (13) on described the second tank body (102), described secondary reaction water-in (13) is arranged at the side of the second tank body (102), and tangentially be communicated to the inside of the second tank body (102).
4. well-drilling waste water flocculation sediment desliming treatment unit according to claim 1, it is characterized in that: described dosing mouth (1c) is connected with dispensation apparatus by dosing pipe, described dispensation apparatus comprises the first dispensing canister (141) and the second dispensing canister (142), described the first dispensing canister (141) upper top is provided with clear water import and Imported Medicines, described the second dispensing canister (142) is arranged at the below of the first dispensing canister (141), be provided with mixed medicine agitator (15) in described the first dispensing canister (141), be provided with the liquid transfer lime between described the first dispensing canister (141) and the second dispensing canister (142), the sidewall of described the second dispensing canister (142) is provided with medicine liquid outlet, and described medicine liquid outlet is communicated with the dosing mouth (1c) of flocculation reaction tank (1).
5. well-drilling waste water flocculation sediment desliming treatment unit according to claim 4, it is characterized in that: be provided with secondary back pipeline (21) between the dosing mouth (1c) of described medicine liquid outlet and flocculation reaction tank (1), described secondary back pipeline (21) comprises the first ball valve (22a) and the second ball valve (22b), and the input terminus of the input terminus of described the first ball valve (22a), the second ball valve (22b) all is communicated to the inside of the second dispensing canister (142); The output terminal of described the first ball valve (22a) is connected with the first plunger metering pump (23a), the output terminal of described the first plunger metering pump (23a) is parallel with delivery conduit (24) and the first return line (25a), described delivery conduit (24) is communicated with the output terminal of the first plunger metering pump (23a) with the dosing mouth (1c) of flocculation reaction tank (1), described the first return line (25a) is with the internal communication of output terminal and second dispensing canister (142) of described the first plunger metering pump (23a); The output terminal of described the second ball valve (22b) is connected with the second plunger metering pump (23b), be provided with the second return line (25b) between the output terminal of described the second plunger metering pump (23b) and the second dispensing canister (142), described the second return line (25b) is with output terminal and the second dispensing canister (142) internal communication of the second plunger metering pump (23b).
6. well-drilling waste water flocculation sediment desliming treatment unit according to claim 4, it is characterized in that: described well site is provided with the first skid body (161) and the second skid body (162), described the first skid body (161) and the second skid body (162) are hollow casing, described flocculation reaction tank (1), electrofloatation device (8) and dispensation apparatus all are arranged at the first skid body (161) inside, described sludge dewatering equipment (11) is arranged at the second skid body (162) inside, described the first skid body (161) and the second skid body (162) bottom are provided with at least two support posts (17), are provided with stull (18) between the described support post (17).
7. well-drilling waste water flocculation sediment desliming treatment unit according to claim 1, it is characterized in that: described flocculating settling pond (2) comprises the landwaste pond (2a) that is arranged at the well site, muddy water pond (2b) and reaction settling basin (2c), described landwaste pond (2a) side adjacent with muddy water pond (2b) is provided with at least one connected entrance (19), described landwaste pond (2a) is provided with into water ramp (20) away from a side of muddy water pond (2b), the bottom surface in described landwaste pond (2a) is downward-sloping to the direction of connected entrance (19) along water inlet ramp (20), the bottom in described muddy water pond (2b) is tapered, the feed-water end of described the first water pump (6a) is communicated to inside, muddy water pond (2b), the water port (1d) of described flocculation reaction tank (1), the feed-water end of the first water pump (6a) all is communicated with reaction settling basin (2c).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220402108 CN202898147U (en) | 2012-08-14 | 2012-08-14 | Well drilling waste water flocculating settling and desliming treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220402108 CN202898147U (en) | 2012-08-14 | 2012-08-14 | Well drilling waste water flocculating settling and desliming treatment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765837A (en) * | 2012-08-14 | 2012-11-07 | 成都凯迈科技有限公司 | Well drilling waste water flocculent precipitate desliming processing device and method for processing sewage |
| CN106396197A (en) * | 2016-11-30 | 2017-02-15 | 重庆奇甫机械有限责任公司 | Phosphorization wastewater treatment system and phosphatizing system |
-
2012
- 2012-08-14 CN CN 201220402108 patent/CN202898147U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765837A (en) * | 2012-08-14 | 2012-11-07 | 成都凯迈科技有限公司 | Well drilling waste water flocculent precipitate desliming processing device and method for processing sewage |
| CN106396197A (en) * | 2016-11-30 | 2017-02-15 | 重庆奇甫机械有限责任公司 | Phosphorization wastewater treatment system and phosphatizing system |
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