CN118221254B - Waste liquid treatment device for acidizing and fracturing - Google Patents
Waste liquid treatment device for acidizing and fracturing Download PDFInfo
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- CN118221254B CN118221254B CN202410635369.3A CN202410635369A CN118221254B CN 118221254 B CN118221254 B CN 118221254B CN 202410635369 A CN202410635369 A CN 202410635369A CN 118221254 B CN118221254 B CN 118221254B
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- 239000007788 liquid Substances 0.000 title claims abstract description 110
- 239000002699 waste material Substances 0.000 title claims abstract description 50
- 238000006243 chemical reaction Methods 0.000 claims abstract description 73
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 55
- 239000000945 filler Substances 0.000 claims abstract description 40
- 238000012856 packing Methods 0.000 claims description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000002347 injection Methods 0.000 claims description 24
- 239000007924 injection Substances 0.000 claims description 24
- 239000012530 fluid Substances 0.000 claims description 21
- 239000002253 acid Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 13
- 238000005189 flocculation Methods 0.000 description 11
- 230000016615 flocculation Effects 0.000 description 11
- 230000001105 regulatory effect Effects 0.000 description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- -1 demulsifier Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46176—Galvanic cells
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The waste liquid treatment device for acidizing and fracturing comprises a Fenton reactor and a micro-electrolysis reactor, wherein the micro-electrolysis reactor is arranged above the Fenton reactor and is communicated with the Fenton reactor, a reaction frame is arranged in the micro-electrolysis reactor, a plurality of groups of filling cavities are arranged in the reaction frame, a rotatable distributor which is respectively communicated with the plurality of groups of filling cavities through a pipeline is also arranged in the micro-electrolysis reactor, and when the distributor rotates, external liquid can be uniformly distributed into the plurality of groups of filling cavities for treatment and then is introduced into the Fenton reactor; according to the invention, the distribution equipment is arranged in the micro-electrolysis reactor, so that the acidizing and fracturing waste liquid entering the micro-electrolysis reactor for contact reaction with the filler bed can be continuously and uniformly dispersed and reacted, the micro-electrolysis filler bed failure caused by long-time contact of excessive acidizing and fracturing waste liquid with the filler bed is avoided, and the continuous treatment effect on the acidizing and fracturing waste liquid is ensured.
Description
Technical Field
The invention relates to the technical field of sewage treatment equipment, in particular to a waste liquid treatment device for acid fracturing.
Background
The acidizing and fracturing is one of important measures for improving the oil gas yield of a single well and repairing depleted wells, the fracturing operation is usually carried out by adopting mixed acid mainly comprising earth acid, and meanwhile, additional reagents such as demulsifier, stabilizer, guanidine gum and the like are added into the fracturing fluid to improve the construction performance, so that the waste liquid returned after the acidizing and fracturing construction operation has the characteristics of high acidity, high stability and high viscosity, and the treatment difficulty of the acidizing and fracturing waste liquid is greatly increased.
Aiming at the characteristics of high acidity, high stability and high viscosity of the acidizing and fracturing waste liquid, the combined treatment of a micro-electrolysis treatment method and a Fenton oxidation method is currently proposed in the industry, wherein the micro-electrolysis method is to introduce the waste liquid into a special filler capable of forming local primary batteries for oxidation-reduction reaction, more ferrous iron is generated in the treatment process, and hydrogen peroxide is added in the Fenton oxidation method under the existence of the ferrous iron, so that a group of extremely strong oxidizing reaction systems are obtained, the oxidative decomposition of most stable pollutants can be indiscriminately realized, the ferrous iron needed in the Fenton oxidation method can be provided by the micro-electrolysis method, and the combined use of the micro-electrolysis method and the Fenton oxidation method has the natural application advantage in treating the wastewater with high difficulty.
However, the treatment characteristic of the micro-electrolysis method is that the waste liquid is directly contacted with the filler forming the stacked bed structure, so that passivation and hardening phenomena of the filler layer are easy to occur, especially when the micro-electrolysis method is used for treating the waste liquid with high viscosity and high stability, such as acidizing and fracturing waste liquid, because the waste liquid contains a large amount of organic matters, the micro-electrolysis method is easy to form large-scale aggregation and hardening in the filler layer after being contacted with the micro-electrolysis filler layer, the effect of treating the acidizing and fracturing waste liquid by the micro-electrolysis method is obviously reduced, the serious possibility of the filler inactivation is caused, and operators are forced to frequently replace the filler layer, so that the treatment time and the treatment cost are greatly improved.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a waste liquid treatment apparatus for acid fracturing, which distributes waste liquid introduced into a micro-electrolysis treatment process by a specific distribution apparatus and structure, reduces damage to a filler layer as much as possible, and improves treatment effect.
In order to solve at least one technical problem, the technical scheme provided by the invention is as follows:
the waste liquid treatment device for acidizing and fracturing comprises a Fenton reactor and a micro-electrolysis reactor, wherein the micro-electrolysis reactor is arranged above the Fenton reactor and is communicated with the Fenton reactor,
The micro-electrolysis reactor comprises a reaction cavity and a liquid collecting cavity which is arranged below the reaction cavity and connected with the reaction cavity, a cylindrical reaction frame is fixedly arranged in the reaction cavity, a plurality of groups of filling cavities are arranged on the reaction frame at intervals, the top of each filling cavity is contacted with a filling cavity cover which is arranged on the wall of the micro-electrolysis reactor, so that the filling cavity cover can control the communication between the outside and the filling cavity, and a filling bottom hole is formed in the bottom of each filling cavity, so that the inside of each filling cavity can be communicated with the reaction cavity;
a packing bed is arranged in the packing cavity, a distribution chamber with a cylindrical inner space is arranged at the top of the micro-electrolysis reactor, the bottom surface of the distribution chamber is provided with bottom holes of the distribution chamber with the same number as the packing cavity at intervals, and the bottom holes of the distribution chamber are correspondingly communicated to the packing cavity one by one through built-in guide pipes penetrating through the micro-electrolysis reactor and the reaction frame;
The micro-electrolysis reactor is also provided with a distributor, the distributor comprises a distribution rotor and a water stop plate, the distribution rotor and the water stop plate are coaxially connected and are not contacted, the top of the distribution rotor extends to the outside of the distribution chamber and is sequentially connected with the liquid injection chamber and the driving motor from bottom to top, so that the micro-electrolysis reactor can rotate around a shaft under the driving of the driving motor;
The distribution rotor is a cylinder with a gap, the diameter and the height of the distribution rotor are equal to those of the space inside the distribution chamber, so that the distribution rotor can rotate around a shaft in the distribution chamber under the drive of a driving motor, the distribution rotor is provided with a distribution gap which can be always communicated with the bottom hole of the distribution chamber, the distribution rotor is provided with a distribution hole communicated with the distribution gap, the distribution hole is communicated with the liquid injection chamber, and fluid can be injected into the distribution hole through the liquid injection chamber when the distribution rotor rotates around the shaft;
the water stop plate is a cylinder with a gap, which is in contact with the bottom surface of the reaction frame, and can completely cover the bottom hole of the filler, and the water stop plate and the connecting shaft of the distribution rotor penetrate through the reaction frame and the top surface of the micro-electrolysis reactor, so that the water stop plate can synchronously rotate with the distribution rotor, a water stop gap which can be communicated with the bottom hole of the filler is arranged on the water stop plate, and the water stop gap is not communicated with the distribution gap.
The Fenton reactor is characterized in that the inside of the Fenton reactor comprises a liquid outlet chamber and a reaction chamber which are arranged separately, wherein a stirring assembly and a pH monitor which extend into the reaction chamber from the outside are arranged in the reaction chamber, an adjusting inlet and an oxidizing agent inlet which extend into the reaction chamber are also arranged on the Fenton reactor, a separation net which is communicated with the liquid outlet chamber and the reaction chamber is arranged at the separation part of the liquid outlet chamber and the reaction chamber, and a liquid outlet pipe which is connected to the outside is arranged in the liquid outlet chamber.
Furthermore, the bottom surface of the reaction chamber is funnel-shaped, the lowest part of the reaction chamber is the lowest part of the Fenton reactor, and a sludge discharge port is arranged.
One embodiment of the invention is that the number of bottom holes of the distribution chamber which are communicated with the distribution notch simultaneously is not higher than 2 groups.
The liquid injection chamber is a hollow closed container which is fixedly arranged, a waste liquid inlet which is communicated with the inside and the outside is arranged on the liquid injection chamber, a plurality of groups of liquid guide through holes are arranged on the part of the connecting shaft of the distribution rotor and the driving motor, which penetrates the liquid injection chamber, and the liquid guide through holes are communicated with the distribution holes.
One embodiment of the invention is that the bottom holes of the distribution chamber are distributed in a ring shape at intervals.
One embodiment of the invention is that the arc distance of the water stop notch relative to the distribution notch along the rotation direction is larger than the arc distance of the water stop notch and the distribution notch along the reverse rotation direction.
One embodiment of the invention is that the liquid collecting cavity is funnel-shaped.
One embodiment of the invention is that the diameter of the packed bed is greater than the pore size of the bottom pores of the packing.
One embodiment of the invention is that a safety valve is arranged on the packing cavity cover.
The invention has the technical effects that:
1. By arranging the distribution equipment in the micro-electrolysis reactor, the acidizing and fracturing waste liquid entering the micro-electrolysis reactor for contact reaction with the filler bed can be continuously and uniformly dispersed and reacted, so that the micro-electrolysis filler bed is prevented from being invalid due to the fact that excessive acidizing and fracturing waste liquid is contacted with the filler bed for a long time, smooth progress of micro-electrolysis-Fenton combined reaction is ensured, and continuous treatment effect on the acidizing and fracturing waste liquid is ensured.
2. The micro-electrolysis packed bed can be directly replaced by opening the packing cavity cover, so that the operation is simple, the labor cost and the time cost for replacing the packed bed are reduced, and the treatment efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of a micro-electrolytic reactor according to the present invention;
FIG. 3 is a schematic view of the inside of the distribution chamber in the present invention;
FIG. 4 is a schematic structural view of a reaction frame in the present invention;
FIG. 5 is a schematic diagram of a distributor of the present invention;
FIG. 6 is a schematic view of the structure of the liquid injection chamber in the present invention;
In the figure, the rotation direction of a 1-Fenton reactor, a 2-micro-electrolysis reactor, a 3-liquid injection chamber, a 4-driving motor, a 5-distributor, a 6-skid base, a 101-liquid outlet chamber, a 102-reaction chamber, a 103-separation net, a 104-liquid outlet pipe, a 105-mud discharging port, a 106-stirring component, a 107-pH monitoring meter, a 108-adjusting inlet, a 109-oxidant inlet, a 201-reaction chamber, a 202-liquid collecting chamber, a 203-reaction frame, a 204-filling cavity cover, a 205-filling cavity, a 206-filling bottom hole, a 207-filling bed, a 208-distribution chamber, a 209-distribution chamber bottom hole, a 210-reaction frame through hole, a 211-filling cavity through hole, a 212-built-in guide pipe, a 213-safety valve, a 301-liquid injection chamber shell, a 302-movable seal, a 303-waste liquid inlet, a 501-distribution rotor, a 502-distribution hole, a 503-distribution notch, a 504-water stopping plate, a 505-water stopping notch, a 506-guide through hole and a 507-distributor is shown.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Referring to fig. 1, a waste liquid treatment apparatus for acid fracturing,
Comprising a Fenton reactor 1 and a micro-electrolysis reactor 2, wherein the micro-electrolysis reactor 2 is arranged above the Fenton reactor 1 and is communicated with the Fenton reactor 1, and as shown in fig. 2, the micro-electrolysis reactor 2 comprises a reaction cavity 201 and a liquid collecting cavity 202 arranged below the reaction cavity 201 and connected with the reaction cavity, and in some embodiments, the liquid collecting cavity 202 can be arranged in a funnel shape, so that fluid can conveniently flow out of the liquid collecting cavity 202 from top to bottom.
The reaction chamber 201 is fixedly provided with a cylindrical reaction frame 203, referring to fig. 4, a plurality of groups of packing chambers 205 are arranged on the reaction frame 203 at intervals, the top of each packing chamber 205 is in contact with a packing chamber cover 204 arranged on the wall of the micro-electrolysis reactor 2, the packing chamber cover 204 virtually forms a switch cover for the packing chamber 205 to be in contact with the outside, so that the packing chamber cover 204 can control the communication between the outside and the packing chamber 205, when the internal components of the packing chamber 205 need to be replaced, the packing chamber cover 204 can be directly opened to realize the replacement, in some embodiments, a safety valve 213 is arranged on the packing chamber cover 204, so that the condition that high pressure is generated due to liquid accumulation in the packing chamber 205 is avoided, and in addition, a packing bottom hole 206 is arranged at the bottom of the packing chamber 205, so that the inside of the packing chamber 205 can be communicated with the reaction chamber 201.
The packing cavity 205 is provided with a packing bed 207, and the packing bed 207 may be fixed in the packing cavity 205 in a conventional manner, including but not limited to bonding, fixing by a detachable structure, etc., and the diameter of the packing bed 207 in this embodiment is larger than the diameter of the packing bottom hole 206, so that the packing bed 207 can be directly placed in the packing cavity 205, and the complexity in replacement is reduced.
Referring to fig. 2 and 3, the top of the micro-electrolysis reactor 2 is provided with a distribution chamber 208 with a cylindrical inner space, the bottom surface of the distribution chamber 208 is provided with a plurality of distribution chamber bottom holes 209 with the same number as that of the packing chambers 205 at intervals, the distribution chamber bottom holes 209 are communicated with the packing chambers 205 in a one-to-one correspondence manner through built-in conduits 212 penetrating through the micro-electrolysis reactor 2 and the reaction frame 203, when fluid enters the distribution chamber 208, the fluid can flow into the distribution chamber bottom holes 209 at will under the condition of no obstruction, and enters the packing chambers 205 under the guidance of the built-in conduits 212, as can be seen from fig. 4, the built-in conduits 212 can be respectively arranged to penetrate through reaction frame through holes 210 on the packing chambers 205, packing chamber through holes 211 on the top of the reaction frame 203 and the distribution chamber bottom holes 209, and obviously, the packing chamber through holes 211 can also be communicated with the distribution chamber bottom holes 209.
Referring to fig. 5, the micro-electrolysis reactor 2 is further provided with a distributor 5, the distributor 5 comprises a distribution rotor 501 and a water stop plate 504, the distribution rotor 501 and the water stop plate 504 are coaxially connected and are not contacted, the top of the distribution rotor 501 extends to the outside of the distribution chamber 208 and is sequentially connected with the liquid injection chamber 3 and the driving motor 4 from bottom to top, so that the distribution rotor is capable of rotating around an axis under the driving of the driving motor 4, as can be seen from fig. 2, the distributor 5 is in fact clamped in the micro-electrolysis reactor 2, part of the distribution rotor 501 is clamped in the distribution chamber 208, the water stop plate 504 is clamped in the reaction chamber 201 and is clung to the bottom of the reaction frame 203, and when the distribution rotor 501 rotates, the water stop plate 504 also synchronously rotates.
Wherein, referring to fig. 3 and 5, the distribution rotor 501 is a cylinder with a gap, which is arranged in the distribution chamber 208, the diameter and height of the distribution rotor 501 are equal to the inner space of the distribution chamber 208, namely, the cylinder where the distribution rotor 501 is positioned can exactly and completely fill the inner space of the distribution chamber 208, so that the cylinder can rotate around the axis in the distribution chamber 208 under the driving of the driving motor 4, the distribution rotor 501 is provided with the distribution gap 503 which can always be communicated with the distribution chamber bottom hole 209, wherein, the number of the distribution chamber bottom holes 209 which are simultaneously communicated with the distribution gap 503 is not higher than 2 groups, namely, the volume of the distribution gap 503 needs to be controlled, the distribution rotor 501 is prevented from being provided with the distribution holes 502 which are communicated with the distribution gap 503, the distribution holes 502 are communicated with the liquid injection chamber 3, and when the distribution rotor 501 rotates around the axis, the fluid can be injected into the distribution holes 502 through the liquid injection chamber 3, it can be seen that the external fluid can be introduced into the position of the distribution gap 503 along the sequence from the liquid injecting chamber 3 to the distribution hole 502, and the distribution gap 503 is always communicated with the distribution chamber bottom hole 209, after the external fluid enters the distribution gap 503, the external fluid can further enter the distribution chamber bottom hole 209, and is continuously introduced into the packing cavity 205 along the built-in conduit 212, and because the connection mode of the distribution chamber bottom hole 209 and the packing cavity 205 is one-to-one, i.e. there is no arrangement mode that a plurality of groups of distribution chamber bottom holes 209 are connected to the same packing cavity 205, when the distribution rotor 501 rotates around the axis, the distribution gap 503 is communicated with the distribution chamber bottom holes 209 at different positions in sequence in the rotation process, so that the external fluid introduced into the distribution gap 503 by the liquid injecting chamber 3 is uniformly dispersed into different packing cavities 205 and further contacts different packing beds 207 in the packing cavity 205, the function of uniformly dispersing the external fluid into different packed beds 207 is achieved, and obviously, to better obtain a uniform dispersing effect, the structure of the distribution chamber bottom holes 209 should be distributed in a ring shape at intervals as shown in fig. 3, and the distribution notches 503 are always communicated with the distribution chamber bottom holes 209, so that multiple groups of the distribution chamber bottom holes 209 can be allowed to be connected into the distribution notches 503, and the distribution notches 503 are not completely separated from the distribution chamber bottom holes 209 to cause pressure holding.
Referring to fig. 2 and 5, the water stop plate 504 is a cylinder with a gap, which is in contact with the bottom surface of the reaction frame 203, and can completely cover the filler bottom hole 206, and when the distribution gap 503 introduces external fluid into the filler cavity 205, the filler bottom hole 206 of the filler cavity 205 into which the fluid is introduced is blocked by the solid part of the water stop plate 504, so that the acidified fracturing waste liquid serving as external fluid can be retained in the filler cavity 205 and fully contacted with the filler bed 207, the contact time of the filler bottom hole 206 and the filler bottom hole is increased, the micro-electrolysis effect is improved, the water stop gap 505 is not communicated with the distribution gap 503, the water stop plate 504 and the distribution rotor 501 synchronously rotate, that is, the water stop plate 504 and the filler bottom hole are not communicated, namely, the water stop plate 504 and the filler bottom hole are not connected to the same filler cavity 205, but are arranged in a staggered structure as shown in fig. 5, and the filler bottom hole 206 of the filler cavity 205 into which the fluid is introduced is blocked by the solid part of the water stop plate 504 when the distribution gap 503 introduces external fluid into the filler cavity 205, so that the acidified fracturing waste liquid serving as external fluid can be retained in the filler cavity 205, the contact with the filler bed 207, the contact time of the two is increased, and the micro-electrolysis effect is improved, and the effect is realized, and the filler fluid is not being introduced into the filler cavity 205 and the filler cavity and is dispersed, and the filler cavity is dispersed, and the filler is dispersed.
In addition, in order to improve the effect of the circulation process, in some embodiments, as shown in fig. 5, the arc distance between the water stop notch 505 and the distribution notch 503 in the rotation direction is greater than the arc distance between the two opposite rotation directions, assuming that the rotation direction 507 of the distributor shown in fig. 5 is the rotation direction of the distributor 5, the arc distance between the water stop notch 505 and the distribution notch 503 is the outer large circle, and is far greater than the arc distance between the two opposite rotation directions, so that the fluid introduced into the packing cavity 205 by the distribution notch 503 can be discharged out of the packing cavity 205 after the water stop notch 505 rotates by the large circle, thereby prolonging the retention time of the fluid in the packing cavity 205.
Referring to fig. 1, the Fenton reactor 1 in this embodiment includes a liquid outlet 101 and a reaction chamber 102 separately disposed inside, wherein, a stirring assembly 106 and a pH monitor 107 are disposed in the reaction chamber 102, which extend into the reaction chamber 102 from the outside, a regulating inlet 108 and an oxidizing agent inlet 109 are disposed on the Fenton reactor 1, a separation net 103 is disposed at the separation of the liquid outlet 101 and the reaction chamber 102, which is communicated with the liquid outlet 101, a liquid outlet pipe 104 is disposed in the liquid outlet 101, the bottom surface of the reaction chamber 102 is funnel-shaped, the lowest part of the reaction chamber is the lowest part of the Fenton reactor 1, a sludge outlet 105 is disposed, the waste liquid processed by the micro-electrolysis reactor 2 enters the Fenton reactor 1, the pH monitor 107 is used for on-line monitoring the pH value in the whole Fenton reactor 1, the regulating inlet 108 is connected with an external pH regulating liquid storage tank, when the pH monitor 107 monitors the pH value exceeding the normal range of the Fenton reactor, the pH regulating inlet 108 is used for regulating the pH value inside, the Fenton reactor 1 is disposed on the stirring assembly 106, which includes a conventional paddle, the stirring assembly 106 is disposed on the bottom of the reaction chamber, and the flocculation reactor 102 is disposed at the lowest part of the reaction chamber, and the bottom of the flocculation reactor is disposed at the bottom of the flocculation reactor, and the flocculation reactor is separated from the flocculation reactor 1, and the flocculation reactor is separated from the flocculation reactor is disposed at the bottom of the flocculation reactor 1, and the flocculation reactor is separated from the flocculation reactor 1, and the flocculation reactor is separated, and the flocculation-suspended. In addition, the bottom of the Fenton reactor 1 can be provided with a skid-mounted base 6, so that the whole treatment device can be conveniently carried.
The function of the liquid injection chamber 3 is to introduce the waste liquid into the distribution gap in the rotation process of the distributor 5, in this embodiment, the structure of the liquid injection chamber 3 is shown in fig. 6, which is a hollow closed container fixedly arranged, a waste liquid inlet 303 communicating the inside and the outside is arranged on the hollow closed container, a plurality of groups of liquid guide through holes 506 are arranged on the part of the distribution rotor 501 penetrating the liquid injection chamber 3 with the connecting shaft of the driving motor 4, the liquid guide through holes are communicated with the distribution holes 502, wherein a movable seal 302 including but not limited to mechanical seal and elastic seal is arranged between the distributor 5 and the wall of the liquid injection chamber 3, so that the waste liquid entering the liquid injection chamber 3 can be guided to the distribution holes 502 along a pipeline through the liquid guide through holes 506 when the distributor 5 rotates, and then enters the distribution gap 503.
In summary, the working procedure of the invention is as follows:
The distributor 5 rotates at a certain speed under the drive of the driving motor 4, the acidified fracturing waste liquid is continuously injected into the distribution notch 503 in the distribution chamber 208 from the liquid injection chamber 3, and along with the rotation process of the distributor 5, the distribution notch 503 is communicated with the bottom holes 209 of different distribution chambers, so that the acidified fracturing waste liquid is respectively introduced into different packing cavities 205 to be contacted with the packing bed 207, the micro-electrolysis reaction is implemented, the problem that the packing bed is rapidly hardened and disabled due to the fact that excessive acidified fracturing waste liquid is accumulated on a single packing bed in the process is avoided, and the packing bed can be directly replaced by opening the packing cavity cover 204 after being used for a period of time, so that the operation is simple, convenient and rapid.
The waste liquid after micro-electrolysis treatment is continuously discharged into the reaction chamber 102 through the filler bottom hole 206, the pH value of a reaction system in the reaction chamber 102 is monitored by the pH monitor 107, the pH value in the reaction chamber is controlled to be about 4 by supplementing a pH regulating medicament in real time through the regulating inlet 108, the required hydrogen peroxide content is further determined according to the waste liquid amount injected into the micro-electrolysis reactor 2, then the hydrogen peroxide is injected through the oxidant inlet 109, the Fenton oxidation reaction is carried out on the waste liquid after micro-electrolysis containing ferrous iron, the stirring component 106 is used for stirring during the reaction process, the continuous and smooth progress of the treatment is ensured, the liquid injection is suspended after a period of reaction, the treated waste liquid is pumped out of the reaction device through the liquid outlet 104, and the generated floccule is discharged out of the Fenton reactor 1 through the mud discharge outlet 105, so that the combined treatment of the acidizing fracturing waste liquid is realized.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and should not be construed as limiting the present invention.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present invention disclosed in the embodiments of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (10)
1. A waste liquid treatment device for acidizing and fracturing is characterized by comprising a Fenton reactor (1) and a micro-electrolysis reactor (2), wherein the micro-electrolysis reactor (2) is arranged above the Fenton reactor (1) and is communicated with the Fenton reactor (1),
The micro-electrolysis reactor (2) comprises a reaction cavity (201) and a liquid collecting cavity (202) which is arranged below the reaction cavity (201) and connected with the reaction cavity, a cylindrical reaction frame (203) is fixedly arranged in the reaction cavity (201), a plurality of groups of filling cavities (205) are arranged on the reaction frame (203) at intervals, the tops of the filling cavities (205) are in contact with a filling cavity cover (204) which is arranged on the wall of the micro-electrolysis reactor (2), the filling cavity cover (204) can control the communication between the outside and the filling cavity (205), and a filling bottom hole (206) is formed in the bottom of the filling cavity (205) so that the inside of the filling cavity (205) can be communicated with the reaction cavity (201);
A packing bed (207) is arranged in the packing cavity (205), a distribution chamber (208) with a cylindrical inner space is arranged at the top of the micro-electrolysis reactor (2), the bottom surface of the distribution chamber (208) is provided with distribution chamber bottom holes (209) with the same number as the packing cavity (205) at intervals, and the distribution chamber bottom holes (209) are communicated to the packing cavity (205) in a one-to-one correspondence manner through built-in pipes (212) penetrating through the micro-electrolysis reactor (2) and the reaction frame (203);
the micro-electrolysis reactor (2) is also provided with a distributor (5), the distributor (5) comprises a distribution rotor (501) and a water stop plate (504), the distribution rotor (501) and the water stop plate (504) are coaxially connected and are not contacted, the top of the distribution rotor (501) extends to the outside of the distribution chamber (208) and is sequentially connected with the liquid injection chamber (3) and the driving motor (4) from bottom to top, so that the micro-electrolysis reactor can rotate around a shaft under the driving of the driving motor (4);
The distribution rotor (501) is a cylinder with a gap and arranged in the distribution chamber (208), the diameter and the height of the distribution rotor (501) are equal to the inner space of the distribution chamber (208), so that the distribution rotor can rotate around a shaft in the distribution chamber (208) under the driving of the driving motor (4), the distribution rotor (501) is provided with a distribution gap (503) which can be always communicated with a bottom hole (209) of the distribution chamber, the distribution rotor (501) is provided with a distribution hole (502) communicated with the distribution gap (503), the distribution hole (502) is communicated with the liquid injection chamber (3), and fluid can be injected into the distribution hole (502) through the liquid injection chamber (3) when the distribution rotor (501) rotates around the shaft;
The water stopping plate (504) is a cylinder with a gap, which is in contact with the bottom surface of the reaction frame (203), and can completely cover the filler bottom hole (206), the connecting shaft of the water stopping plate (504) and the distribution rotor (501) penetrates through the reaction frame (203) and the top surface of the micro-electrolysis reactor (2), so that the water stopping plate (504) can synchronously rotate with the distribution rotor (501), the water stopping plate (504) is provided with a water stopping gap (505) which can be communicated with the filler bottom hole (206), and the water stopping gap (505) is not communicated with the distribution gap (503).
2. The waste liquid treatment device for acid fracturing according to claim 1, wherein: the Fenton reactor (1) is inside including the play liquid room (101) and the reaction chamber (102) that separate the setting, wherein, be provided with stirring subassembly (106) and pH monitor (107) that stretch into through outside in reaction chamber (102), be provided with regulation import (108) and oxidant import (109) that stretch into reaction chamber (102) on Fenton reactor (1), the separation department of play liquid room (101) and reaction chamber (102) is provided with separation net (103) of intercommunication both, be provided with in play liquid room (101) and be connected to outside drain pipe (104).
3. The waste liquid treatment device for acid fracturing according to claim 2, wherein: the bottom surface of the reaction chamber (102) is funnel-shaped, the lowest part of the reaction chamber is the lowest part of the Fenton reactor (1), and a sludge discharge port (105) is arranged.
4. The waste liquid treatment device for acid fracturing according to claim 1, wherein: the number of distribution chamber bottom holes (209) which are communicated with the distribution notch (503) at the same time is not higher than 2 groups.
5. The waste liquid treatment device for acid fracturing according to claim 1, wherein: the liquid injection chamber (3) is a hollow closed container which is fixedly arranged, a waste liquid inlet (303) which is communicated with the inside and the outside is arranged on the hollow closed container, a plurality of groups of liquid guide through holes (506) are arranged on the part, penetrating into the liquid injection chamber (3), of the connecting shaft of the distribution rotor (501) and the driving motor (4), and the liquid guide through holes are communicated with the distribution holes (502).
6. The waste liquid treatment device for acid fracturing according to claim 1, wherein: the bottom holes (209) of the distribution chamber are distributed in a ring shape at intervals.
7. The waste liquid treatment device for acid fracturing according to claim 1, wherein: the arc distance of the water stopping notch (505) relative to the distribution notch (503) along the rotation direction is larger than the arc distance of the water stopping notch and the distribution notch along the reverse rotation direction.
8. The waste liquid treatment device for acid fracturing according to claim 1, wherein: the liquid collecting cavity (202) is funnel-shaped.
9. The waste liquid treatment device for acid fracturing according to claim 1, wherein: the diameter of the packed bed (207) is larger than the pore diameter of the bottom hole (206) of the packing.
10. The waste liquid treatment device for acid fracturing according to claim 1, wherein: and a safety valve (213) is arranged on the packing cavity cover (204).
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| CN202410635369.3A CN118221254B (en) | 2024-05-22 | 2024-05-22 | Waste liquid treatment device for acidizing and fracturing |
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| CN202410635369.3A CN118221254B (en) | 2024-05-22 | 2024-05-22 | Waste liquid treatment device for acidizing and fracturing |
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| CN118221254B true CN118221254B (en) | 2024-07-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114917838A (en) * | 2022-05-11 | 2022-08-19 | 河北彩客新材料科技股份有限公司 | Hydrogen peroxide solution control feeding device for synthesizing DATA |
| CN116255829A (en) * | 2023-04-28 | 2023-06-13 | 安庆金野新材料有限公司 | Nonferrous metal material vacuum melting device |
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| KR20040102450A (en) * | 2003-05-28 | 2004-12-08 | 한종경 | Device for Seperating Foreign Substance from Filth Water |
| JP2012220945A (en) * | 2011-04-13 | 2012-11-12 | Technomate Co Ltd | Cleaner for 3d spectacles |
| CN202139090U (en) * | 2011-07-11 | 2012-02-08 | 许继联华国际环境工程有限责任公司 | Novel micro-electrolysis reactor |
| CN211912974U (en) * | 2019-11-07 | 2020-11-13 | 新阳科技集团有限公司 | Waste water tower |
| CN215855260U (en) * | 2021-08-20 | 2022-02-18 | 河南洁水环保科技有限公司 | Yellow ginger saponin waste water micro-electrolysis tower |
| CN217384876U (en) * | 2021-12-01 | 2022-09-06 | 安徽中青环保工程有限公司 | Water quality monitoring timesharing sampling device |
| CN220537622U (en) * | 2023-03-07 | 2024-02-27 | 西南石油大学 | Fenton coupling micro-electrolysis oxidation treatment system for toxic industrial wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114917838A (en) * | 2022-05-11 | 2022-08-19 | 河北彩客新材料科技股份有限公司 | Hydrogen peroxide solution control feeding device for synthesizing DATA |
| CN116255829A (en) * | 2023-04-28 | 2023-06-13 | 安庆金野新材料有限公司 | Nonferrous metal material vacuum melting device |
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