CN104193030A - Device for flocculating and separating calcium-magnesium precipitate in formation water through alkaline flooding - Google Patents

Device for flocculating and separating calcium-magnesium precipitate in formation water through alkaline flooding Download PDF

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Publication number
CN104193030A
CN104193030A CN201410391835.4A CN201410391835A CN104193030A CN 104193030 A CN104193030 A CN 104193030A CN 201410391835 A CN201410391835 A CN 201410391835A CN 104193030 A CN104193030 A CN 104193030A
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mixing tank
storage tank
pipeline
pipe interface
inlet pipe
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CN201410391835.4A
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CN104193030B (en
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董明哲
宫厚健
李亚军
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China University of Petroleum Beijing CUPB
China University of Petroleum UPC East China
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China University of Petroleum UPC East China
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Abstract

The invention relates to a device for flocculating and separating calcium-magnesium precipitate in formation water through alkaline flooding. The device comprises a NaOH solution storage tank, a formation water storage tank and a polymer solution storage tank, wherein the NaOH solution storage tank and the formation water storage tank are respectively connected with a NaOH solution water inlet pipe joint and a formation water inlet pipe joint of a first mixer respectively through a pipeline, a water outlet pipe joint of the first mixer is connected with a NaOH solution and formation water mixture inlet pipe joint in the upper part of a second mixer; the polymer solution storage tank is connected with a polymer solution water inlet pipe joint of the second mixer through a pipeline, and a mixed liquid water outlet pipe joint of the second mixer is connected with a horizontal spiral hose separator through a pipeline; and a mixed liquid outlet of the horizontal spiral hose separator through a pipeline is connected with a mixed liquid water inlet joint of a settling tank through a pipeline. More than 90% of separation effect can be achieved within short time through lower flocculant, and the production efficiency can be greatly improved.

Description

Drive the device of local water calcium magnesium precipitate thing flocculation separation for alkali
Technical field
The invention belongs to petroleum engineering field, particularly, relate to a kind of device that drives local water calcium magnesium precipitate thing flocculation separation for alkali, thereby utilize lower concentration flocculation agent mixed base and local water in spirrillum hose arrangement to make calcium magnesium precipitate thing flocculation separation.
Background technology
Viscosity of thickened oil is high, be difficult for flowing, and conventionally utilizes the method for steam thermal recovery at present, reduces thick oil viscosity by heating, thereby makes viscous crude be convenient to mobile and be plucked out of.If but core intersection is thin or oil reservoir is dark especially, adopt steam treatment to exploit and will cause serious calorific loss, and exploitation effect is also poor.For this type of viscous crude, chemical flooding particularly alkali to drive be than better suited method.It is because contain in crude oil after natural organic acid and alkali reaction and can generate and have surface-active material that alkali drives the recovery ratio that why can improve viscous crude, thus formation W/O (water-in-oil) or O/W (oil-in-water) emulsion.In the time forming W/O emulsion, because W/O emulsion has very high viscosity, can stop up high permeability zones territory, water pressure is increased, thereby improve oil recovery factor; In the time forming O/W emulsion, thick oil viscosity can reduce greatly, thereby is displaced with water.
Although alkali drives, viscous crude is had to extraordinary driving effect, because the use of alkali can cause the harm such as the erosion and encrustation of equipment, limited alkali and driven the application in viscous oil recovery.Oil production water filling generally adopts local water, contains a large amount of salt ions, as Ca in water 2+, Mg 2+deng, after mixing with NaOH, can there is following reaction:
OH -+HCO 3 -→CO 3 2-+H 2O
Ca 2++CO 3 2-→CaCO 3
Mg 2++2OH -→Mg(OH) 2
The CaCO generating 3and Mg (OH) 2will in pipeline or stratum, deposit gradually fouling, totally unfavorable for actual production.Therefore, in local water, the removal of calcium ions and magnesium ions is the important prerequisite that alkali drives the application in viscous oil recovery.
At present, in field produces, this is mainly taked following several processing mode:
(1), prior by the Ca in local water by chemical precipitation method or ion-exchange-resin process etc. 2+and Mg 2+deng removing;
(2), acid adding scale removal;
(3), add Scale inhibitors.
But these methods need to add new chemical agent, the use of a large amount of chemical agents, can increase production cost.In addition, the deposit seeds of generation is very little, be difficult to directly remove by the method for filtering, aborning conventionally by the gathering that is used for accelerating precipitation of flocculation agent, though separation efficiency be improved, but separating effect bad.
Summary of the invention
For overcoming the defect of prior art, the invention provides a kind of device that drives local water calcium magnesium precipitate thing flocculation separation for alkali, that utilizes that flocculation agent and spirrillum flexible pipe separator combine drives local water calcium magnesium precipitate thing flocculation separation for alkali, in the time of the consumption of lower flocculation agent, just can reach better separating effect, simultaneously simple to operate, can greatly reduce production costs.
For achieving the above object, the present invention is by the following technical solutions:
Drive the device of local water calcium magnesium precipitate thing flocculation separation for alkali, comprising: NaOH solution storage tank, local water storage tank, polymers soln storage tank, the first mixing tank, the second mixing tank, flat spirrillum flexible pipe separator or vertical spirrillum flexible pipe separator, subsider; Wherein:
The first internal mixer is provided with whipping appts, and the first mixing tank top is provided with the water inlet pipe interface of NaOH solution water inlet pipe interface and local water, and the bottom of the first mixing tank is provided with the rising pipe interface of NaOH solution and local water mixed solution;
NaOH solution storage tank is connected with the NaOH solution water inlet pipe interface of the first mixing tank by the first pipeline, and the first pipeline is provided with the first impeller pump; Local water storage tank is connected with the local water water inlet pipe interface of the first mixing tank by the second pipeline, and the second pipeline is provided with the second impeller pump;
The second internal mixer is provided with whipping appts, and the top of the second mixing tank is provided with polymers soln water inlet pipe interface, NaOH solution and local water mixed solution water inlet pipe interface; The rising pipe interface of the first mixing tank is connected with local water mixed solution water inlet pipe interface with the NaOH solution on the top of the second mixing tank by the 3rd pipeline; Polymers soln storage tank is connected with the polymers soln water inlet pipe interface of the second mixing tank by the 4th pipeline, and the 4th pipeline is provided with the 3rd impeller pump;
The bottom of the second mixing tank is provided with the rising pipe interface of NaOH solution, local water and mixed with polymers liquid, the mixed solution rising pipe interface of the second mixing tank is connected with flat spirrillum flexible pipe separator or vertical spirrillum flexible pipe separator by the 5th pipeline, and the 5th pipeline is provided with stopping valve; The lower end of flat spirrillum flexible pipe separator or vertical spirrillum flexible pipe separator is provided with mixture export;
Subsider is square storage tanks, and top is provided with mixed solution water inlet pipe interface, and the below, inside of subsider is provided with baffle plate, and baffle plate separates subsider left and right, and the bottom of subsider left-hand end is provided with water outlet;
By the 7th pipeline, the mixture export of flat spirrillum flexible pipe separator or vertical spirrillum flexible pipe separator is connected with the mixed solution water inlet pipe interface of subsider.
Compared with prior art, beneficial effect of the present invention is as follows:
(1), present method adopt flocculation agent separate with spirrillum flexible pipe the method combining, can within the lower flocculation agent consumption short period, reach more than 90% separating effect, can enhance productivity significantly;
(2), the flocculation agent consumption that adopts in present method is lower than 3mg/L, low-consuming, and is market medicine on sale, wide material sources, with low cost;
(3), the spirrillum flexible pipe separator that adopts in present method can take vertical or flat, can be according to the space of factory building and flow process need to take reasonable manner, flexible easy handling;
(4), present method can reach 99% to the separating effect of calcium magnesium is the highest, can farthest reduce the impact of throw out fouling on stratum and pipeline;
(5), method of the present invention, environmental pollution is little, low to the corrodibility of equipment.
(6), method of the present invention is low for equipment requirements, method is simple and cost is lower.
Brief description of the drawings
Fig. 1 is the device schematic diagram that drives local water calcium magnesium precipitate thing flocculation separation for alkali;
Fig. 2 is another device schematic diagram that drives local water calcium magnesium precipitate thing flocculation separation for alkali;
In figure: 1, NaOH solution storage tank, 2, local water storage tank, 3, polymers soln storage tank, 4, the first impeller pump, 5, the second impeller pump, 6, the 3rd impeller pump, 7, the first mixing tank, 8, the second mixing tank, 9, stopping valve, 10, flat spirrillum flexible pipe separator, 11, subsider, 12, vertical spirrillum flexible pipe separator.
Embodiment
As shown in Figure 1, drive the device of local water calcium magnesium precipitate thing flocculation separation for alkali, comprising: NaOH solution storage tank 1, local water storage tank 2, polymers soln storage tank 3, the first mixing tank 7, the second mixing tank 8, flat spirrillum flexible pipe separator 10, subsider 11 and vertical spirrillum flexible pipe separator 12; Wherein:
The storage tank that NaOH solution storage tank 1 is plastic material, for storing NaOH solution;
The storage tank that local water storage tank 2 is plastic material, for storing the simulated formation water of preparation;
The storage tank that polymers soln storage tank 3 is plastic material, for storing the flocculant aqueous solution of preparation; Flocculation agent used is one or both in anionic polyacrylamide, non-ionic polyacrylamide or cationic polyacrylamide; The concentration of flocculation agent used is controlled at 0.3-3mg/L;
The first mixing tank 7 tops are that cylindrical shell, bottom are cone shell, the first mixing tank 7 inside are provided with whipping appts, the first mixing tank 7 tops are provided with the water inlet pipe interface of NaOH solution water inlet pipe interface and local water, and the bottom of the first mixing tank 7 is provided with the rising pipe interface of NaOH solution and local water mixed solution; NaOH solution storage tank 1 is connected with the NaOH solution water inlet pipe interface of the first mixing tank 7 by the first pipeline, and the first pipeline is provided with the first impeller pump 4, the first impeller pumps 4 NaOH solution is pumped in the first mixing tank 7; Local water storage tank 2 is connected with the local water water inlet pipe interface of the first mixing tank 7 by the second pipeline, and the second pipeline is provided with the second impeller pump 5, the second impeller pumps 5 local water is pumped in the first mixing tank 7; NaOH solution and local water mix by stirring fully in the first mixing tank 7;
The second mixing tank 8 tops are that cylindrical shell, bottom are cone shell, and the second mixing tank 8 inside are provided with whipping appts, and the top of the second mixing tank 8 is provided with polymers soln water inlet pipe interface, NaOH solution and local water mixed solution water inlet pipe interface; The rising pipe interface of the first mixing tank 7 is connected with local water mixed solution water inlet pipe interface with the NaOH solution on the top of the second mixing tank 8 by the 3rd pipeline; Polymers soln storage tank 3 is connected with the polymers soln water inlet pipe interface of the second mixing tank 8 by the 4th pipeline, and the 4th pipeline is provided with the 3rd impeller pump 6, the three impeller pumps 6 polymers soln is pumped in the second mixing tank 8; The NaOH solution that polymers soln enters with the first mixing tank 7 and the mixed solution of local water fully mix by stirring;
The bottom of the second mixing tank 8 is provided with the rising pipe interface of NaOH solution, local water and mixed with polymers liquid, the mixed solution rising pipe interface of the second mixing tank 8 is connected with flat spirrillum flexible pipe separator 10 by the 5th pipeline, the 5th pipeline is provided with stopping valve 9, enters flat spirrillum flexible pipe separator 10 by the on-off control mixing liquid of stopping valve 9; Flat spirrillum flexible pipe separator 10 plastic hoses by diameter 5~10mm are wound around and obtain along horizontal circle column jecket; The lower end of flat spirrillum flexible pipe separator 10 is provided with mixture export;
Subsider 11 is square storage tanks, and its top is provided with mixed solution water inlet pipe interface, by the 7th pipeline, the mixture export of flat spirrillum flexible pipe separator 10 is connected with the mixed solution water-in of subsider 11;
The below, inside of subsider 11 is provided with baffle plate, baffle plate separates subsider left and right, and the bottom of subsider left-hand end is provided with water outlet, and the macrobead in liquid is concentrated the right-hand member that is deposited in baffle plate in subsider, and liquid overflows across baffle plate and flows to the subsider left side, flow out by the water outlet of bottom, left side.
Above-mentioned to drive the action principle of local water calcium magnesium precipitate thing flocculation separator for alkali as follows: respectively the NaOH solution in NaOH solution storage tank 1 and local water storage tank 2 and local water are pumped in the first mixing tank 7 by impeller pump 4 and impeller pump 5, by stirring, NaOH solution and local water are fully mixed, after mixing, pass in the second mixing tank 8, by the 3rd impeller pump, the polymers soln in polymers soln storage tank 3 is pumped in the second mixing tank 8 simultaneously, make abundant mixing by stirring, afterwards mixing liquid is passed into flat spirrillum flexible pipe separator 10, in separator, throw out can be deposited as macrobead gradually, when particle is grown up to a certain extent, can flow in subsider 11 with fluid, because precipitation is gathered into large particle in flat spirrillum flexible pipe separator 10, once at the bottom of entering into subsider 11 and can sinking to pond, the liquid flowing out from water outlet like this, the content of calcium magnesium is just down to very low degree.
As improvement, the present invention can also adopt scheme as shown in Figure 2, is with the difference of Fig. 1: replace flat spirrillum flexible pipe separator 10 by vertical spirrillum flexible pipe separator 12; The plastic hose that vertical spirrillum flexible pipe separator 12 is 5~10mm by diameter is wound around and obtains along vertical cylindrical tube.
Below prove by experiment beneficial effect of the present invention, in following examples, local water used is the simulated formation water of laboratory preparation, and total mineralization is 25915mg/L, and process for preparation is by 452.74g NaCl, 21.09g CaCl 2, 47.37g MgCl 26H 2o, 22.30g NaHCO 3after adding certain water stirring and dissolving, constant volume is stand-by to 20L.
Embodiment 1
Utilize impeller pump 4 that the NaOH solution in NaOH solution storage tank 1 is pumped in the first mixing tank 7 with the flow velocity of 0.1mL/min, utilize impeller pump 5 that the simulated formation water in local water storage tank 2 is pumped in the first mixing tank 7 with the speed of 20mL/min simultaneously, controlling the first mixing tank is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass in the second mixing tank 8, pass into again afterwards in flat spirrillum flexible pipe separator 10, throw out is deposited as gradually macrobead in spirrillum flexible pipe, separate throw out by subsider 11 afterwards, get the water of certain mass from water outlet, filter and claim to obtain weight of precipitate, calculating solids content is 60.0mg/kg, removal efficiency is 96.3%.
Embodiment 2
Utilize impeller pump 4 that the NaOH solution in NaOH solution storage tank 1 is pumped in the first mixing tank 7 with the flow velocity of 0.1mL/min, utilize impeller pump 5 that the simulated formation water in local water storage tank 2 is pumped in the first mixing tank 7 with the speed of 150mL/min simultaneously, controlling the first mixing tank is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass in the second mixing tank 8, utilize impeller pump 6 by the anionic polyacrylamide that in polymkeric substance storage tank 3, concentration is 0.3mg/L (molecular weight 2 × 10 simultaneously 7degree of hydrolysis 35%) solution is pumped in the second mixing tank 8 with the flow velocity of 0.1mL/min, controlling the second mixing tank 8 is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass into again in flat spirrillum flexible pipe separator 10, throw out is deposited as gradually macrobead in spirrillum flexible pipe, separate throw out by subsider 11 afterwards, get the water of certain mass from water outlet, filter and claim to obtain weight of precipitate, calculating solids content is 148.3mg/kg, and removal efficiency is 90.7%.
Embodiment 3
Utilize impeller pump 4 that the NaOH solution in NaOH solution storage tank 1 is pumped in the first mixing tank 7 with the flow velocity of 0.1mL/min, utilize impeller pump 5 that the simulated formation water in local water storage tank 2 is pumped in the first mixing tank 7 with the speed of 150mL/min simultaneously, controlling the first mixing tank is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass in the second mixing tank 8, utilize impeller pump 6 by the anionic polyacrylamide that in polymkeric substance storage tank 3, concentration is 0.3mg/L (molecular weight 2 × 10 simultaneously 7degree of hydrolysis 35%) solution is pumped in the second mixing tank 8 with the flow velocity of 0.1mL/min, controlling the second mixing tank 8 is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass into again in vertical spirrillum flexible pipe separator 12, throw out is deposited as gradually macrobead in spirrillum flexible pipe, separate throw out by subsider 11 afterwards, get the water of certain mass from water outlet, filter and claim to obtain weight of precipitate, calculating solids content is 78.7mg/kg, and removal efficiency is 95.1%.
Embodiment 4
Utilize impeller pump 4 that the NaOH solution in NaOH solution storage tank 1 is pumped in the first mixing tank 7 with the flow velocity of 0.1mL/min, utilize impeller pump 5 that the simulated formation water in local water storage tank 2 is pumped in the first mixing tank 7 with the speed of 150mL/min simultaneously, controlling the first mixing tank is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass in the second mixing tank 8, utilize impeller pump 6 by the anionic polyacrylamide that in polymkeric substance storage tank 3, concentration is 1.0mg/L (molecular weight 2 × 10 simultaneously 7degree of hydrolysis 35%) solution is pumped in the second mixing tank 8 with the flow velocity of 0.1mL/min, controlling the second mixing tank 8 is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass into again in flat spirrillum flexible pipe separator 10, throw out is deposited as gradually macrobead in spirrillum flexible pipe, separate throw out by subsider 11 afterwards, get the water of certain mass from water outlet, filter and claim to obtain weight of precipitate, calculating solids content is 75.4mg/kg, and removal efficiency is 95.3%.
Embodiment 5
Utilize impeller pump 4 that the NaOH solution in NaOH solution storage tank 1 is pumped in the first mixing tank 7 with the flow velocity of 0.1mL/min, utilize impeller pump 5 that the simulated formation water in local water storage tank 2 is pumped in the first mixing tank 7 with the speed of 150mL/min simultaneously, controlling the first mixing tank is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass in the second mixing tank 8, utilize impeller pump 6 by the anionic polyacrylamide that in polymkeric substance storage tank 3, concentration is 3.0mg/L (molecular weight 2 × 10 simultaneously 7degree of hydrolysis 35%) solution is pumped in the second mixing tank 8 with the flow velocity of 0.1mL/min, controlling the second mixing tank 8 is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass into again in flat spirrillum flexible pipe separator 10, throw out is deposited as gradually macrobead in spirrillum flexible pipe, separate throw out by subsider 11 afterwards, get the water of certain mass from water outlet, filter and claim to obtain weight of precipitate, calculating solids content is 34.1mg/kg, and removal efficiency is 97.9%.
Embodiment 6
Utilize impeller pump 4 that the NaOH solution in NaOH solution storage tank 1 is pumped in the first mixing tank 7 with the flow velocity of 0.1mL/min, utilize impeller pump 5 that the simulated formation water in local water storage tank 2 is pumped in the first mixing tank 7 with the speed of 150mL/min simultaneously, controlling the first mixing tank is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass in the second mixing tank 8, utilize impeller pump 6 by the non-ionic polyacrylamide that in polymkeric substance storage tank 3, concentration is 3.0mg/L (molecular weight 1 × 10 simultaneously 7) solution is pumped in the second mixing tank 8 with the flow velocity of 0.1mL/min, controlling the second mixing tank 8 is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass into again in vertical spirrillum flexible pipe separator 12, throw out is deposited as gradually macrobead in spirrillum flexible pipe, separate throw out by subsider 11 afterwards, get the water of certain mass from water outlet, filter and claim to obtain weight of precipitate, calculating solids content is 139.8mg/kg, and removal efficiency is 91.3%.
Embodiment 7
Utilize impeller pump 4 that the NaOH solution in NaOH solution storage tank 1 is pumped in the first mixing tank 7 with the flow velocity of 0.1mL/min, utilize impeller pump 5 that the simulated formation water in local water storage tank 2 is pumped in the first mixing tank 7 with the speed of 150mL/min simultaneously, controlling the first mixing tank is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass in the second mixing tank 8, utilize impeller pump 6 by the cationic polyacrylamide that in polymkeric substance storage tank 3, concentration is 3.0mg/L (molecular weight 1 × 10 simultaneously 7cationic degree 45%-50%) solution is pumped in the second mixing tank 8 with the flow velocity of 0.1mL/min, controlling the second mixing tank 8 is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass into again in vertical spirrillum flexible pipe separator 12, throw out is deposited as gradually macrobead in spirrillum flexible pipe, separate throw out by subsider 11 afterwards, get the water of certain mass from water outlet, filter and claim to obtain weight of precipitate, calculating solids content is 156.8mg/kg, and removal efficiency is 90.2%.
Embodiment 8
Utilize impeller pump 4 that the NaOH solution in NaOH solution storage tank 1 is pumped in the first mixing tank 7 with the flow velocity of 0.1mL/min, utilize impeller pump 5 that the simulated formation water in local water storage tank 2 is pumped in the first mixing tank 7 with the speed of 50mL/min simultaneously, controlling the first mixing tank is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass in the second mixing tank 8, utilize impeller pump 6 by the anionic polyacrylamide that in polymkeric substance storage tank 3, concentration is 0.3mg/L (molecular weight 2 × 10 simultaneously 7degree of hydrolysis 35%) solution is pumped in the second mixing tank 8 with the flow velocity of 0.1mL/min, controlling the second mixing tank 8 is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass into again in vertical spirrillum flexible pipe separator 12, throw out is deposited as gradually macrobead in spirrillum flexible pipe, separate throw out by subsider 11 afterwards, get the water of certain mass from water outlet, filter and claim to obtain weight of precipitate, calculating solids content is 9.5mg/kg, and removal efficiency is 99.4%.
Embodiment 9
Utilize impeller pump 4 that the NaOH solution in NaOH solution storage tank 1 is pumped in the first mixing tank 7 with the flow velocity of 0.1mL/min, utilize impeller pump 5 that the simulated formation water in local water storage tank 2 is pumped in the first mixing tank 7 with the speed of 50mL/min simultaneously, controlling the first mixing tank is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass in the second mixing tank 8, utilize impeller pump 6 by the anionic polyacrylamide that in polymkeric substance storage tank 3, concentration is 3.0mg/L (molecular weight 2 × 10 simultaneously 7degree of hydrolysis 35%) solution is pumped in the second mixing tank 8 with the flow velocity of 0.1mL/min, controlling the second mixing tank 8 is uniformly mixed with the stirring velocity of 200rpm, after being uniformly mixed, pass into again in vertical spirrillum flexible pipe separator 12, throw out is deposited as gradually macrobead in spirrillum flexible pipe, separate throw out by subsider 11 afterwards, get the water of certain mass from water outlet, filter and claim to obtain weight of precipitate, calculating solids content is 9.5mg/kg, and removal efficiency is 99.4%.

Claims (10)

1. a device that drives local water calcium magnesium precipitate thing flocculation separation for alkali, comprising: NaOH solution storage tank, local water storage tank, polymers soln storage tank, the first mixing tank, the second mixing tank, flat spirrillum flexible pipe separator, subsider; It is characterized in that:
The first internal mixer is provided with whipping appts, and the first mixing tank top is provided with the water inlet pipe interface of NaOH solution water inlet pipe interface and local water, and the bottom of the first mixing tank is provided with the rising pipe interface of NaOH solution and local water mixed solution;
NaOH solution storage tank is connected with the NaOH solution water inlet pipe interface of the first mixing tank by the first pipeline, and the first pipeline is provided with the first impeller pump; Local water storage tank is connected with the local water water inlet pipe interface of the first mixing tank by the second pipeline, and the second pipeline is provided with the second impeller pump;
The second internal mixer is provided with whipping appts, and the top of the second mixing tank is provided with polymers soln water inlet pipe interface, NaOH solution and local water mixed solution water inlet pipe interface; The rising pipe interface of the first mixing tank is connected with local water mixed solution water inlet pipe interface with the NaOH solution on the top of the second mixing tank by the 3rd pipeline; Polymers soln storage tank is connected with the polymers soln water inlet pipe interface of the second mixing tank by the 4th pipeline, and the 4th pipeline is provided with the 3rd impeller pump;
The bottom of the second mixing tank is provided with the rising pipe interface of NaOH solution, local water and mixed with polymers liquid, and the mixed solution rising pipe interface of the second mixing tank is connected with flat spirrillum flexible pipe separator by the 5th pipeline, and the 5th pipeline is provided with stopping valve; The lower end of flat spirrillum flexible pipe separator is provided with mixture export;
Subsider is square storage tanks, and top is provided with mixed solution water inlet pipe interface, and the below, inside of subsider is provided with baffle plate, and baffle plate separates subsider left and right, and the bottom of subsider left-hand end is provided with water outlet;
By the 7th pipeline, the mixture export of flat spirrillum flexible pipe separator is connected with the mixed solution water inlet pipe interface of subsider.
2. the device that drives local water calcium magnesium precipitate thing flocculation separation for alkali according to claim 1, is characterized in that: the first mixing tank top is that cylindrical shell, bottom are cone shell; The second mixing tank top is that cylindrical shell, bottom are cone shell.
3. according to driving the device of local water calcium magnesium precipitate thing flocculation separation for alkali described in claim 1-2, it is characterized in that: flat spirrillum flexible pipe separator is wound around and obtains along horizontal circle column jecket by the plastic hose of diameter 5~10mm.
4. according to driving the device of local water calcium magnesium precipitate thing flocculation separation for alkali described in claim 1-3, it is characterized in that: the storage tank that NaOH solution storage tank is plastic material; Local water storage tank is the storage tank of plastic material; Polymers soln storage tank is the storage tank of plastic material, for storing the flocculant aqueous solution of preparation.
5. according to driving the device of local water calcium magnesium precipitate thing flocculation separation for alkali described in claim 1-4, it is characterized in that: flocculation agent used is one or both in anionic polyacrylamide, non-ionic polyacrylamide or cationic polyacrylamide; The concentration of flocculation agent used is controlled at 0.3-3mg/L.
6. a device that drives local water calcium magnesium precipitate thing flocculation separation for alkali, comprising: NaOH solution storage tank, local water storage tank, polymers soln storage tank, the first mixing tank, the second mixing tank, vertical spirrillum flexible pipe separator, subsider; It is characterized in that:
The first internal mixer is provided with whipping appts, and the first mixing tank top is provided with the water inlet pipe interface of NaOH solution water inlet pipe interface and local water, and the bottom of the first mixing tank is provided with the rising pipe interface of NaOH solution and local water mixed solution;
NaOH solution storage tank is connected with the NaOH solution water inlet pipe interface of the first mixing tank by the first pipeline, and the first pipeline is provided with the first impeller pump; Local water storage tank is connected with the local water water inlet pipe interface of the first mixing tank by the second pipeline, and the second pipeline is provided with the second impeller pump;
The second internal mixer is provided with whipping appts, and the top of the second mixing tank is provided with polymers soln water inlet pipe interface, NaOH solution and local water mixed solution water inlet pipe interface; The rising pipe interface of the first mixing tank is connected with local water mixed solution water inlet pipe interface with the NaOH solution on the top of the second mixing tank by the 3rd pipeline; Polymers soln storage tank is connected with the polymers soln water inlet pipe interface of the second mixing tank by the 4th pipeline, and the 4th pipeline is provided with the 3rd impeller pump;
The bottom of the second mixing tank is provided with the rising pipe interface of NaOH solution, local water and mixed with polymers liquid, and the mixed solution rising pipe interface of the second mixing tank is connected with vertical spirrillum flexible pipe separator by the 5th pipeline, and the 5th pipeline is provided with stopping valve; The lower end of vertical spirrillum flexible pipe separator is provided with mixture export;
Subsider is square storage tanks, and top is provided with mixed solution water inlet pipe interface, and the below, inside of subsider is provided with baffle plate, and baffle plate separates subsider left and right, and the bottom of subsider left-hand end is provided with water outlet;
By the 7th pipeline, the mixture export of vertical spirrillum flexible pipe separator is connected with the mixed solution water inlet pipe interface of subsider.
7. the device that drives local water calcium magnesium precipitate thing flocculation separation for alkali according to claim 6, is characterized in that: the first mixing tank top is that cylindrical shell, bottom are cone shell; The second mixing tank top is that cylindrical shell, bottom are cone shell.
8. according to driving the device of local water calcium magnesium precipitate thing flocculation separation for alkali described in claim 6-7, it is characterized in that: the plastic hose that vertical spirrillum flexible pipe separator is 5~10mm by diameter is wound around and obtains along vertical cylindrical tube.
9. according to driving the device of local water calcium magnesium precipitate thing flocculation separation for alkali described in claim 6-8, it is characterized in that: the storage tank that NaOH solution storage tank is plastic material; Local water storage tank is the storage tank of plastic material; Polymers soln storage tank is the storage tank of plastic material, for storing the flocculant aqueous solution of preparation.
10. according to driving the device of local water calcium magnesium precipitate thing flocculation separation for alkali described in claim 6-9, it is characterized in that: flocculation agent used is one or both in anionic polyacrylamide, non-ionic polyacrylamide or cationic polyacrylamide; The concentration of flocculation agent used is controlled at 0.3-3mg/L.
CN201410391835.4A 2014-08-11 2014-08-11 Device for calcium and magnesium sediment flocculation separation in the water of alkali drive stratum Expired - Fee Related CN104193030B (en)

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CN201410391835.4A CN104193030B (en) 2014-08-11 2014-08-11 Device for calcium and magnesium sediment flocculation separation in the water of alkali drive stratum

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Cited By (2)

* Cited by examiner, † Cited by third party
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