CN113482577A - Bittern purification and collection method - Google Patents
Bittern purification and collection method Download PDFInfo
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- CN113482577A CN113482577A CN202110829054.9A CN202110829054A CN113482577A CN 113482577 A CN113482577 A CN 113482577A CN 202110829054 A CN202110829054 A CN 202110829054A CN 113482577 A CN113482577 A CN 113482577A
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- bittern
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
Abstract
The invention relates to a bittern purification and collection method. The bittern purifying and collecting method comprises the following steps of S1: mixing the low-calcium liquid with clear water according to a certain proportion, fully mixing, and introducing into an underground dissolving cavity of a mirabilite well group; step S2: after the mixed solution fully reacts in the underground dissolving cavity, returning the reacted salt rock brine to the ground, and enabling the reacted salt rock brine to enter a salt rock brine tank; step S3: outputting the salt rock brine in the salt rock brine tank to a user place through a brine conveying pump matched with the salt rock brine tank; step S4: cleaning the salt rock brine tank and the pipe fittings for conveying the salt rock brine regularly; the bittern purification and mining method improves the comprehensive utilization rate of underground resources in the later mining period of the mirabilite well group, and is suitable for the green mining requirement advocated by the state.
Description
Technical Field
The invention belongs to the technical field of mirabilite brine collection, and particularly relates to a brine purification and brine collection method.
Background
The existing mirabilite well group gradually slides down the content of brine sodium sulfate along with the increase of the mining age and the inherent shortage of the mirabilite ore bed quality, the content of sodium chloride stably rises, and the quality of mirabilite brine can not meet the production requirement easily, so that a plurality of mirabilite well groups are easily abandoned and cannot be utilized after becoming a low-nitre well group, thereby causing resource waste.
Disclosure of Invention
The invention aims to solve the problems and provide a bittern purification and collection method which is simple in structure and reasonable in design.
The invention realizes the purpose through the following technical scheme:
a bittern purification and collection method comprises the following steps of S1: mixing the low-calcium liquid with clear water according to a certain proportion, fully mixing, and introducing into an underground dissolving cavity of a mirabilite well group;
step S2: after the mixed solution fully reacts in the underground dissolving cavity, returning the reacted salt rock brine to the ground, and enabling the reacted salt rock brine to enter a salt rock brine tank;
step S3: outputting the salt rock brine in the salt rock brine tank to a user place through a brine conveying pump matched with the salt rock brine tank;
step S4: and cleaning the salt rock brine tank and the pipe fittings for conveying the salt rock brine regularly.
As a further optimized solution of the present invention, in step S1, the ratio of the low-calcium liquid to the clear water is 3: n; wherein n is more than or equal to 1 and less than or equal to 2;
as a further preferable aspect of the present invention, in step S2, a mixed liquid of the low-calcium liquid and the clear water is continuously added at a mixing ratio of 2: 1.
the utility model provides a bittern purification adopts bittern device, the device includes calcium fluid reservoir, calcium fluid reservoir is connected with the calcium liquid pump, calcium fluid reservoir and salt well intercommunication, salt well and bittern storage tank intercommunication, bittern storage tank is connected with defeated bittern pump, a plurality of user's pipelines are connected to defeated bittern pump, bittern storage tank is the detachable jar body, during the clearance, dismantles this jar body, clears up.
As a further optimization scheme of the invention, the brine storage tank comprises a tank shell and a bottom plate member, the position of the tank shell is fixed, the lower end of the bottom plate member is connected with a lifting device, and the lifting device can lift the bottom plate member.
As a further optimized scheme of the invention, the lifting device comprises a bearing frame, the bearing frame comprises a bearing plate member and an underframe member, and a telescopic rod member and a reinforcing rod member are arranged between the bearing plate member and the underframe member; when the brine storage tank receives brine, the telescopic rod piece jacks up the bearing plate piece to enable the upper end of the bearing plate piece to be in contact with the lower end of the tank shell, the upper end of the reinforcing rod piece is in contact with the bearing plate piece, and the lower end of the reinforcing rod piece is connected with the bottom frame piece; when the brine storage tank is cleaned, the telescopic rod piece is contracted, the bearing plate is in an inclined state, and the upper end of the reinforcing rod piece is not in contact with the bearing plate.
As a further optimized scheme of the invention, the telescopic rod piece is inclined, the upper end and the lower end of the telescopic rod piece are both connected with movable joints, and the upper end and the lower end of the telescopic rod piece are respectively connected with the bearing plate piece and the underframe piece through the movable joints; the lower end of the reinforcing rod piece is rotatably connected with the bottom frame piece, the upper end of the reinforcing rod piece is provided with a groove, a compression spring is arranged in the groove, the upper end of the compression spring is connected with an arc top rod piece, and the upper end face of the arc top rod piece protrudes out of the groove.
As a further optimized scheme of the invention, the telescopic rod is a hydraulic rod, the hydraulic rod is connected with a hydraulic assembly, and the hydraulic assembly controls the length of the hydraulic rod; the chassis spare is connected with motor element, motor element's drive shaft has the dwang, the dwang is restricted to rotate around self axis in the chassis spare, strengthen the lower extreme and the dwang fixed connection of member.
As a further optimization scheme of the invention, the bottom plate piece comprises an outer frame piece and a solid plate piece, an elastic waterproof sheet is arranged between the outer frame piece and the solid plate piece, the lower end of the tank shell is pressed on the surface of the elastic waterproof sheet, the upper end face of the solid plate piece is fixedly connected with an inner plate piece, the outer side surface of the inner plate piece is connected with a pressurizing bag piece, and the pressurizing bag piece is in close contact with the inner wall of the tank shell after being expanded.
As a further optimization scheme of the invention, the pressurizing bag comprises an outer bag, a fixing clamp and an inner bag, the outer bag is communicated with the inner bag, the inner bag is wrapped on the outer surface of the fixing clamp, the inner plate comprises a whole frame and a sliding frame, a limiting inner rod is inserted into the whole frame, the limiting inner rod is fixedly connected with the sliding frame, the limiting inner rod can slide out of or be inserted into the frame wall of the whole frame, the outer surface of the inner plate is provided with a matching groove, the matching groove is matched with the fixing clamp, and when the pressurizing bag expands, the inner bag expands to seal a gap between the matching groove and the fixing clamp.
The invention has the beneficial effects that: the invention adopts a low-calcium liquid injection well mode, converts the mirabilite brine into the salt rock brine, increases the brine quantity of the salt rock, simultaneously improves the comprehensive utilization rate of underground resources at the later stage of the mirabilite well group exploitation, and adapts to the green mining requirement advocated by the state.
Drawings
FIG. 1 is a schematic flow diagram of the process of the present invention;
FIG. 2 is a schematic structural view of a halogen storage tank of the present invention;
FIG. 3 is a schematic structural view of the telescopic rod and the reinforcing rod of the present invention;
FIG. 4 is a schematic structural view of a floor member of the present invention;
FIG. 5 is a schematic structural view of an inner panel member of the present invention;
FIG. 6 is a schematic view of the slide frame of the present invention shown in a slid-out configuration;
fig. 7 is a schematic structural view illustrating the engagement between the fixed latch and the engagement groove of the present invention.
In the figure: 1. a brine storage tank; 11. a brine conveying pump; 12. a halogen inlet pump; 2. a floor member; 21. an outer frame member; 22. an elastic waterproof sheet; 23. an inner panel; 231. a whole frame piece; 232. a slide frame member; 233. defining an inner rod; 234. a mating groove; 24. a pressurizing bladder member; 241. an outer bladder member; 242. fixing the clamping piece; 243. an inner bladder member; 3. a carrier; 31. a load bearing plate; 32. a limiting plate; 33. a telescopic rod member; 34. a reinforcing bar member; 35. an undercarriage member; 36. a movable section; 37. rotating the rod; 38. a compression spring; 39. a curved roof bar; 4. a hydraulic assembly; 5. an electric motor assembly.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in fig. 1, a bittern purification and collection method includes the following steps, step S1: mixing the low-calcium liquid with clear water according to a certain proportion, fully mixing, and introducing into an underground dissolving cavity of a mirabilite well group;
step S2: after the mixed solution fully reacts in the underground dissolving cavity, returning the reacted salt rock brine to the ground, and enabling the reacted salt rock brine to enter a salt rock brine tank;
step S3: outputting the salt rock brine in the salt rock brine tank to a user place through a brine conveying pump matched with the salt rock brine tank;
step S4: and cleaning the salt rock brine tank and the pipe fittings for conveying the salt rock brine regularly.
Further, in step S1, the ratio of the low-calcium liquid to the clear water is 3: n; wherein n is more than or equal to 1 and less than or equal to 2; in the present embodiment, n is 1;
in step S2, a mixed liquid of the low-calcium liquid and the clear water is continuously added at a mixing ratio of 2: 1;
in the method of the embodiment, a low-calcium liquid (calcium chloride 55-65g/L) well injection mode is adopted, the mirabilite brine is converted into salt rock brine, the salt rock brine quantity is increased, the comprehensive utilization rate of underground resources in the later mining period of a mirabilite well group is improved, and the method is suitable for the green mining requirement advocated by the state.
The principle applied in this example is actually that sodium sulfate and calcium chloride react to produce sodium chloride and calcium sulfate (slightly soluble); the method comprises the following steps of mixing a low-calcium solution (55-65 g/L calcium chloride) with water in a ratio of 3: 2, injecting the mixture into an underground dissolving cavity of the mirabilite well group, and converting the mirabilite well group into a salt well for production.
Specifically, the low-calcium solution is injected into a dissolving cavity of a mirabilite well, the low-calcium solution reacts with sodium sulfate (the content is less than or equal to 65g/L) in the mirabilite well to produce sodium chloride and calcium sulfate, the sodium chloride and the calcium sulfate are concentrated for a certain time to produce calcium sulfate crystals, qualified rock salt brine (the content of the sodium chloride is more than or equal to 295 g/L, and the content of the sodium sulfate is less than or equal to 16 g/L) is lifted out of the ground through the residual pressure at the bottom of the well to enter a brine tank, and the calcium sulfate crystals are left at the bottom of the well.
In actual production, the experiment is carried out on a mirabilite well Hx9-Hx10 in Huaihe salt mining industry according to the method, the content of sodium sulfate is increased from 66 g/L to 15 g/L, and the content of sodium chloride is increased from 286 g/L to 302 g/L; at present, the well group adopts alternate injection of clear water and low-calcium liquid, and the yield and the quality are stable. The method is convenient for popularization and use in the industry.
Example 2
In the bittern purification and collection method, due to the slightly soluble characteristic of calcium sulfate, in practical production experiments, certain defects exist: for a well group with a small cavity, injecting low-calcium liquid for production, wherein the cavity has a small volume, calcium chloride does not fully react with sodium sulfate, the returned ground brine contains calcium chloride and sodium sulfate, the calcium chloride and the sodium sulfate continuously react, and reactants are deposited in a pipeline and a brine tank, so that scaling is generated and the pipeline is easily blocked; experiments show that some calcium sulfate crystals can easily enter the brine tank along with brine to form calcium sulfate scale in the tank body, so that the brine storage tank and each pipeline need to be cleaned regularly in the method, and then the brine storage tank is very troublesome to clean. Provide one kind in this embodiment and adopt steamed device, the clearance of the storage steamed jar of being convenient for:
as shown in fig. 2-7, a bittern purification and extraction device comprises a calcium liquid tank, wherein the calcium liquid tank is connected with a calcium liquid pump, the calcium liquid tank is communicated with a bittern well, the bittern well is communicated with a bittern storage tank 1, the bittern storage tank 1 is connected with a bittern transfer pump 11, the bittern transfer pump 11 is connected with a plurality of user pipelines, the bittern storage tank 1 is a separable tank body, and the tank body is detached for cleaning. The brine storage tank 1 is further connected with a brine inlet pump 12 for receiving brine flowing out of the brine well, and the brine storage tank 1 in this embodiment is the salt rock brine tank in embodiment 1.
Further, the brine storage tank 1 comprises a tank shell and a bottom plate part 2, the tank shell is fixed in position, the lower end of the bottom plate part 2 is connected with a lifting device, and the lifting device can lift the bottom plate part 2. The tank shell can be fixed by welding with a frame body or other fixed connection modes, so that a certain gap is reserved between the whole tank shell and the ground, and the bottom plate member 2 is matched with the bottom of the tank shell through the lifting device, so that a complete tank cavity is formed in the tank shell.
The lifting device comprises a bearing frame 3, the bearing frame 3 comprises a bearing plate member 31 and an underframe member 35, and a telescopic rod member 33 and a reinforcing rod member 34 are arranged between the bearing plate member 31 and the underframe member 35; when the brine storage tank 1 receives brine, the telescopic rod 33 jacks up the bearing plate 31, so that the upper end of the bearing plate 31 is contacted with the lower end of the tank shell, the upper end of the reinforcing rod 34 is contacted with the bearing plate 31, and the lower end of the reinforcing rod 34 is connected with the bottom frame piece 35; when the bittern storage tank 1 is cleaned, the telescopic rod 33 is contracted, the bearing plate 31 is in an inclined state, and the upper end of the reinforcing rod 34 is not contacted with the bearing plate 31.
In this embodiment, the telescopic rod 33 is inclined, the upper and lower ends of the telescopic rod 33 are connected to movable joints 36, and the upper and lower ends of the telescopic rod 33 are connected to the bearing plate 31 and the underframe member 35 through the movable joints 36, respectively; the lower end of the reinforcing rod piece 34 is rotatably connected with the bottom frame piece 35, the upper end of the reinforcing rod piece 34 is provided with a groove, a compression spring 38 is arranged in the groove, the upper end of the compression spring 38 is connected with an arc ejection rod piece 39, and the upper end face of the arc ejection rod piece 39 protrudes out of the groove.
The telescopic rod 33 is a hydraulic rod, the hydraulic rod is connected with a hydraulic assembly 4, and the length of the hydraulic rod is controlled by the hydraulic assembly 4; underframe spare 35 is connected with motor element 5, motor element 5's drive shaft has dwang 37, dwang 37 limits to and rotates around self axis in underframe spare 35, strengthen the lower extreme and the dwang 37 fixed connection of member 34.
In practical use, the actual extension values of the telescopic rod members 33 can be adjusted through the hydraulic assembly 4, so that the whole bottom plate member 2 is in an inclined state, and workers can directly wash and scrub the surface of the bottom plate member 2 conveniently.
In actual use, the reinforcement bar 34 is driven by the motor assembly 5 such that the upper end of the curved roof bar 39 supports the carrier plate member 31, improving the stability of the overall carrier 3 and thus the attachment of the shell to the floor member 2.
As shown in fig. 3, which is a side view of the reinforcing bar member 34 and the telescopic bar member 33, the parts shown in the drawings may be provided as a set of support members, and in actual use, at least two sets of such support members are used to support the floor member 2. The upper end surface of the bearing plate 31 may be provided with a stopper plate 32, and the movement of the floor member 2 is restricted by the stopper plate 32.
The base plate member 2 includes frame 21 and solid plate member, be provided with elasticity waterproof sheet 22 between frame 21 and the solid plate member, the lower extreme pressure of tank shell covers in the surface of elasticity waterproof sheet 22, plate 23 in the up end fixedly connected with of solid plate member, the outside surface of interior plate 23 is connected with and pressurizes bag spare 24, pressurize the inner wall in close contact with of 24 inflation backs of bag spare and tank shell. The pressure bag member 24 is inflated for use when in use, so that the tightness between the tank shell and the bottom plate member 2 can be well enhanced, and liquid can be effectively prevented from flowing out from the tank shell and the bottom plate member. The elastic waterproof sheet 22 is a soft rubber sheet, a groove body can be arranged between the outer frame piece 21 and the solid plate, and the elastic waterproof sheet 22 is placed in the groove body.
The pressurizing bag member 24 comprises an outer bag member 241, a fixing clamp 242 and an inner bag member 243, the outer bag member 241 is communicated with the inner bag member 243, the inner bag member 243 is wrapped on the outer surface of the fixing clamp 242, the inner plate member 23 comprises a whole frame member 231 and a sliding frame member 232, a limiting inner rod 233 is inserted into the whole frame member 231, the limiting inner rod 233 is fixedly connected with the sliding frame member 232, the limiting inner rod 233 can slide out or be inserted into the frame wall of the whole frame member 231, a matching groove 234 is formed in the outer surface of the inner plate member 23, the matching groove 234 is matched with the fixing clamp 242, and when the pressurizing bag member 24 expands, the inner bag member 243 expands to seal a gap between the matching groove 234 and the fixing clamp 242. In the actual use, can take out fixed fastener 242 from cooperation groove 234 in, take out the back, drive reinforcing rod piece 34 rotates, and the flexible member 33 of drive section contracts, makes interior plate 23 slope, and slide frame 232 and the slide-out of restricting interior pole 233 this moment are convenient for the later stage when clearing up the surface of bottom plate spare 2, the outflow of dirt, the use of the personnel of being convenient for clear up.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. A bittern purification and collection method is characterized by comprising the following steps of S1: mixing the low-calcium liquid with clear water according to a certain proportion, fully mixing, and introducing into an underground dissolving cavity of a mirabilite well group;
step S2: after the mixed solution fully reacts in the underground dissolving cavity, returning the reacted salt rock brine to the ground, and enabling the reacted salt rock brine to enter a salt rock brine tank;
step S3: outputting the salt rock brine in the salt rock brine tank to a user place through a brine conveying pump matched with the salt rock brine tank;
step S4: and cleaning the salt rock brine tank and the pipe fittings for conveying the salt rock brine regularly.
2. The bittern purification and collection method according to claim 1, wherein: in step S1, the ratio of the low-calcium liquid to the clear water is 3: n; wherein n is more than or equal to 1 and less than or equal to 2.
3. The bittern purification and collection method according to claim 1, wherein: in step S2, a mixed liquid of the low-calcium liquid and the clear water is continuously added at a mixing ratio of 2: 1.
4. the utility model provides a bittern purification adopts bittern device, its characterized in that, the device include calcium liquid jar, calcium liquid jar is connected with the calcium liquid pump, calcium liquid jar and salt well intercommunication, the salt well communicates with bittern storage tank (1), bittern storage tank (1) is connected with defeated bittern pump (11), a plurality of user's pipelines are connected to defeated bittern pump (11), bittern storage tank (1) is the detachable jar body, during the clearance, dismantles this jar body, clears up.
5. The bittern purification and collection device according to claim 4, wherein: the bittern storage tank (1) comprises a tank shell and a bottom plate piece (2), the tank shell is fixed in position, the lower end of the bottom plate piece (2) is connected with a lifting device, and the lifting device can lift the bottom plate piece (2).
6. The bittern purification and collection device according to claim 5, wherein: the lifting device comprises a bearing frame (3), the bearing frame (3) comprises a bearing plate piece (31) and an underframe piece (35), and a telescopic rod piece (33) and a reinforcing rod piece (34) are arranged between the bearing plate piece (31) and the underframe piece (35); when the brine storage tank (1) receives brine, the telescopic rod piece (33) jacks up the bearing plate piece (31) to enable the upper end of the bearing plate piece (31) to be in contact with the lower end of the tank shell, the upper end of the reinforcing rod piece (34) is in contact with the bearing plate piece (31), and the lower end of the reinforcing rod piece (34) is connected with the bottom frame piece (35); when the halogen storage tank (1) is cleaned, the telescopic rod piece (33) is contracted, the bearing plate piece (31) is in an inclined state, and the upper end of the reinforcing rod piece (34) is not contacted with the bearing plate piece (31).
7. The bittern purification and collection device according to claim 6, wherein: the telescopic rod piece (33) is inclined, the upper end and the lower end of the telescopic rod piece (33) are both connected with movable joints (36), and the upper end and the lower end of the telescopic rod piece (33) are respectively connected with the bearing plate piece (31) and the underframe piece (35) through the movable joints (36); the lower end of the reinforcing rod piece (34) is rotatably connected with the bottom frame piece (35), the upper end of the reinforcing rod piece (34) is provided with a groove, a compression spring (38) is arranged in the groove, the upper end of the compression spring (38) is connected with an arc ejection rod piece (39), and the upper end face of the arc ejection rod piece (39) protrudes out of the groove.
8. The bittern purification and collection device according to claim 7, wherein: the telescopic rod piece (33) is a hydraulic rod, the hydraulic rod is connected with a hydraulic assembly (4), and the length of the hydraulic rod is controlled by the hydraulic assembly (4); underframe spare (35) is connected with motor element (5), the drive shaft of motor element (5) is connected with dwang (37), dwang (37) are restricted to rotate around self axis in underframe spare (35), strengthen the lower extreme and dwang (37) fixed connection of member (34).
9. The bittern purification and collection device according to claim 8, wherein: bottom plate spare (2) are including outer frame spare (21) and solid plate, be provided with elasticity waterproof sheet (22) between outer frame spare (21) and the solid plate, the lower extreme pressure of tank shell covers in the surface of elasticity waterproof sheet (22), plate (23) in the up end fixedly connected with of solid plate, the outside surface of interior plate (23) is connected with and pressurizes bag spare (24), pressurize bag spare (24) inflation back and the inner wall in close contact with of tank shell.
10. The bittern purification and collection device according to claim 9, wherein: the pressurizing bag piece (24) comprises an outer bag piece (241), a fixing clamp piece (242) and an inner bag piece (243), the outer bag piece (241) is communicated with the inner bag piece (243), the inner bag piece (243) wraps the outer surface of the fixing clamp piece (242), the inner bag piece (23) comprises a whole frame piece (231) and a sliding frame piece (232), a limiting inner rod (233) is inserted into the whole frame piece (231), the limiting inner rod (233) is fixedly connected with the sliding frame piece (232), the limiting inner rod (233) can slide out or be inserted into the frame wall of the whole frame piece (231), a matching groove (234) is formed in the outer surface of the inner bag piece (23), the matching groove (234) is matched with the fixing clamp piece (242), and when the pressurizing bag piece (24) expands, the inner bag piece (243) expands to seal a gap between the matching groove (234) and the fixing clamp piece (242).
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