CN115212955A - Quartz sand proppant and preparation device and method thereof - Google Patents
Quartz sand proppant and preparation device and method thereof Download PDFInfo
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- CN115212955A CN115212955A CN202210961807.6A CN202210961807A CN115212955A CN 115212955 A CN115212955 A CN 115212955A CN 202210961807 A CN202210961807 A CN 202210961807A CN 115212955 A CN115212955 A CN 115212955A
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 183
- 239000006004 Quartz sand Substances 0.000 title claims abstract description 154
- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims description 23
- 239000000428 dust Substances 0.000 claims abstract description 75
- 238000000926 separation method Methods 0.000 claims abstract description 38
- 238000000227 grinding Methods 0.000 claims abstract description 36
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 238000001035 drying Methods 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims description 129
- 239000004576 sand Substances 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 abstract description 25
- 239000002253 acid Substances 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000005406 washing Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000012216 screening Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
- Silicon Compounds (AREA)
Abstract
The invention provides a quartz sand proppant and a preparation device and a preparation method thereof, wherein the preparation device comprises a dryer component, a grinding machine, a coarse separation sieve, an air classifier, a first dust remover and a second dust remover; the feeding port of the dryer component is used for receiving quartz sand raw materials, the feeding port of the grinding machine is connected with the discharging port of the dryer component, the discharging port of the grinding machine is connected with the feeding port of the coarse separation sieve, and the discharging port of the coarse separation sieve is connected with the feeding port of the air classifier; the inlet of the first dust remover is respectively communicated with the air outlets of the dryer component, the grinding machine and the coarse separation sieve, and the inlet of the second dust remover is communicated with the air outlet of the air classifier. The preparation device and the preparation method adopting the structure are adopted to prepare the quartz sand proppant, so that washing can be avoided, the equipment investment is reduced, and meanwhile, the drying energy consumption and the workshop pollution are reduced; the dust can be recycled, the turbidity of the propping agent is effectively controlled, the strength and the sphericity of the propping agent are improved, and the acid solubility is reduced.
Description
Technical Field
The invention belongs to the technical field of propping agents, and particularly relates to a quartz sand propping agent as well as a preparation device and a preparation method thereof.
Background
The hydraulic fracturing is an important measure for increasing the yield and injection of the oil and gas field, and achieves a good effect in the yield increasing transformation of the oil and gas reservoir. The method comprises the steps of injecting high-viscosity liquid into a well by utilizing a ground high-pressure pump train set, forming high pressure at the bottom of the well, generating a crack when the bottom pressure is greater than the fracture pressure of a stratum, continuously injecting sand-carrying liquid with a propping agent, extending the crack forwards and filling the propping agent, closing the crack on the propping agent after closing the well and flowing back, supporting the crack, forming a sand-filled crack with high flow conductivity in a reservoir stratum, and finally achieving the purposes of increasing yield and injection.
The petroleum fracturing propping agent is one of key factors for success and failure of oil-gas field fracturing modification measures, the commonly used propping agents at present are mainly divided into three categories, namely quartz sand propping agent, ceramsite propping agent and film-coated propping agent, based on the concept of 'sufficient economy', the quartz sand is favored due to the low-price and easily-obtained inherent advantages, the quartz sand propping agent for reservoir modification is increased year by year, the quartz sand proportion in the propping agent in North America is up to 96%, and the quartz sand proportion in the propping agent in China is also increased year by year.
At present, the production process of the quartz sand proppant has the disadvantages of slow progress, low production efficiency, large equipment investment and serious pollution. The production of quartz sand for fracturing generally lacks water sources, the traditional process is utilized to consume a large amount of water, and meanwhile, the turbidity of the propping agent is not easy to control, and the quality of the propping agent is seriously influenced. And a large amount of fuel resources are consumed for drying after washing, which is not favorable for low carbon, environmental protection and cost reduction.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a quartz sand proppant and a preparation device and a preparation method thereof.
In one aspect of the invention, a preparation device of a quartz sand proppant is provided, and comprises a dryer assembly, a grinder, a coarse separation screen, an air classifier, a first dust remover and a second dust remover;
the feeding port of the dryer component is used for receiving quartz sand raw materials, the feeding port of the grinding machine is connected with the discharging port of the dryer component, the discharging port of the grinding machine is connected with the feeding port of the coarse separation sieve, and the discharging port of the coarse separation sieve is connected with the feeding port of the air classifier;
the inlet of the first dust remover is respectively communicated with the air outlets of the dryer assembly, the grinding machine and the coarse separation screen, and the inlet of the second dust remover is communicated with the air outlet of the air classifier.
Optionally, the dryer assembly comprises a heating furnace and a three-cylinder dryer;
the heating furnace is arranged on the inlet side of the three-cylinder drying machine in series.
Optionally, the mill is provided with multi-stage grinding rollers.
Optionally, the air classifier comprises a high-pressure fan, a finished product box, a plurality of adjusting plates and a plurality of partition plates;
the feeding port of the finished product box is communicated with the discharging port of the coarse separation screen, the air inlet of the finished product box is communicated with the air outlet of the high-pressure fan, and the air outlet of the finished product box is communicated with the inlet of the second dust remover;
the plurality of partition plates are arranged at intervals along the air inlet direction of the finished product box so as to divide the finished product box into a plurality of finished product chambers;
the adjusting plate is arranged on the corresponding separating plate in a lifting manner so as to adjust the vertical distance between the adjusting plate and the air inlet.
Optionally, a buffer bin is arranged inside the finished product chamber.
Optionally, an outlet of the first dust remover is communicated with an induced draft port of a separately arranged induced draft fan to form an external circulation;
and the outlet of the second dust remover is communicated with the induced draft port of the high-pressure fan through an air pipe to form internal circulation.
In another aspect of the present invention, there is provided a method for preparing a proppant of quartz sand, using the preparation apparatus described above, the method comprising:
providing a quartz sand raw material;
conveying the quartz sand raw material to the dryer component, and drying the quartz sand raw material;
conveying the dried quartz sand particles to the grinding machine, and grinding the quartz sand particles;
conveying the ground quartz sand particles to the coarse separation sieve, and performing coarse separation on the quartz sand particles to form first quartz sand particles with a particle size larger than a preset particle size and second quartz sand particles with a particle size smaller than the preset particle size;
conveying the second quartz sand particles to the wind classifier, and performing wind classification on the second quartz sand particles to obtain quartz sand proppants with different particle sizes;
the first dust remover collects dust separated from the surface of the quartz sand particles in the drying, grinding and coarse separation processes;
the second dust remover collects quartz sand particle dust in the air classification process.
Optionally, when the preparation device comprises a high-pressure fan, a finished product box, a plurality of adjusting plates and a plurality of partition plates;
the step of conveying the second quartz sand particles to the wind classifier, and performing wind classification on the second quartz sand particles to obtain the quartz sand proppants with different particle sizes comprises the following steps:
the heights of the adjusting plates are adjusted by controlling the feeding amount of the second quartz sand particles of the finished product box and the air inlet amount fed by the high-pressure fan, so that the second quartz sand particles with different particle sizes are respectively settled in the corresponding finished product chambers.
Optionally, a belt conveyor is used for conveying the quartz sand raw material to the dryer assembly; and/or the presence of a gas in the gas,
conveying the dried quartz sand particles to the grinding machine by using a belt conveyor; and/or the presence of a gas in the gas,
and conveying the second quartz sand particles to the air classifier by using a bucket elevator.
In another aspect of the present invention, a quartz sand proppant is provided, which is prepared and formed by using the preparation device described above.
According to the quartz sand proppant and the preparation device and method thereof provided by the embodiment of the invention, the dryer, the grinder, the coarse separation sieve, the air classifier, the first dust remover and the second dust remover are adopted, so that the quartz sand proppant is free from being washed in the preparation process, the equipment investment is reduced, and meanwhile, the drying energy consumption and the workshop pollution are reduced; the dust can be recycled, the turbidity of the propping agent is effectively controlled, the strength and the sphericity of the propping agent are improved, and the acid solubility is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a device for preparing a silica sand proppant according to an embodiment of the present invention;
FIG. 2 is an enlarged view of the composition structure of an air classifier of the apparatus for preparing a proppant of quartz sand according to another embodiment of the present invention;
fig. 3 is a schematic flow chart of a method for preparing a silica sand proppant according to another embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a preparation apparatus 100 for a proppant of quartz sand, the preparation apparatus 100 comprising a dryer assembly 110, a grinder 120, a coarse separation screen 130, an air classifier 140, a first dust remover 150 and a second dust remover 160. The feed inlet of the dryer assembly 110 is used for receiving quartz sand raw material. The feed inlet of the grinder 120 is connected to the discharge outlet of the dryer assembly 110, and the discharge outlet of the grinder 120 is connected to the feed inlet of the coarse separation sieve 130. The discharge port of the coarse separation sieve 130 is connected with the feed port of the air classifier 140. The inlet of the first dust collector 150 is communicated with the air outlets of the dryer assembly 110, the grinder 120 and the coarse separation screen 130, respectively. The inlet of the second dust collector 160 is communicated with the air outlet of the air classifier 140.
As shown in fig. 1, when the apparatus of this embodiment is used to prepare the quartz sand proppant, the mined quartz sand raw material may be first transported to the upper storage bin 500 by a loader or a transportation vehicle, and then transported to the dryer assembly 110 by the belt conveyor 600 for drying.
During the drying process, the quartz sand particles will rub against each other in the dryer assembly 110 to separate the dust on the surface, the separated dust is extracted and collected by the first dust collector 150 through the air outlet of the dryer assembly 110, and the dried quartz sand particles can be conveyed to the grinder 120 through the belt conveyor 600. The quartz sand particles are ground by the grinder 120, high-strength friction is formed during the grinding process, dust on the surfaces of the quartz sand particles is promoted to be separated, the separated dust is pumped out by the first dust remover 150 through the air outlet of the grinder 120 and collected, and the ground quartz sand particles are conveyed to the coarse separation screen 130. The quartz sand particles are cooled and screened by the coarse separation screen 130, the surface dust of the quartz sand particles is separated again in the screening process, the dust separated again is pumped out and collected by the first dust remover 150 through the air outlet of the coarse separation screen 130, the quartz sand particles with the particle size of more than 20 meshes can be separated after screening, and the quartz sand particles with the particle size of less than 20 meshes are lifted into the buffer bin 800 by the bucket elevator 700.
And conveying the quartz sand particles in the buffer bin 800 to the air classifier 140, sorting the quartz sand particles conveyed to the air classifier 140 in the air classifier 140, and obtaining the quartz sand particles with the required particle size after sorting. Wherein the unwanted dust of the quartz sand particles is extracted and collected by the second dust collector 160 through the air outlet of the air classifier 140 during the sorting process.
Preferably, as shown in fig. 1, the dryer assembly 110 includes a heating furnace 111 and a triple-drum dryer 112. The heating furnace 111 is provided in series on an inlet side of the triple-drum dryer 112. Through the heating furnace and the three-cylinder dryer, the quartz sand raw material can be dried better, and dust can be effectively extracted by the first dust remover along with water vapor generated by drying.
Preferably, as shown in fig. 1, the grinder 120 is provided with multi-stage grinding rollers (not shown). The grinder arranged in this way can form forcible high-strength friction on quartz sand particles inside the grinder through the rotation of the multistage grinding rollers, so that the quartz sand particles with defects are broken, the strength of finished products is improved, and dust on the surfaces of the quartz sand particles can be effectively removed again.
The preparation facilities of quartz sand proppant of this embodiment through the drying-machine subassembly that sets up, grinds machine, coarse separation sieve, air classifier, first dust remover and second dust remover, can exempt from the washing at the in-process of preparing quartz sand proppant, reduces drying energy consumption and workshop pollution when reducing the equipment investment. The dust can be recycled, the turbidity of the propping agent is effectively controlled, the strength and the sphericity of the propping agent are improved, and the acid solubility is reduced. The production efficiency can also be improved.
Illustratively, as shown in fig. 1 and 2, the air classifier 140 includes a high pressure fan 141, a finished product box 142, a plurality of regulating plates 143, and a plurality of partition plates 144. The feed inlet of the finished product box 142 is communicated with the discharge outlet of the coarse separation sieve 130, the air inlet of the finished product box 142 is communicated with the air outlet of the high pressure fan 141, and the air outlet of the finished product box 142 is communicated with the inlet of the second dust remover 160. The plurality of partition plates 144 are disposed at intervals along an air inlet direction of the finished product box 142 to divide the finished product box 142 into a plurality of finished product chambers 142a. The adjusting plate 143 is disposed on the corresponding separating plate 144 in a liftable manner to adjust a vertical distance between the adjusting plate and the air inlet.
Specifically, as shown in fig. 2, when the silica sand particles reach the air classifier 140, the high pressure fan 141 blows air to classify the silica sand particles entering the air classifier 140 by the wind force. The quartz sand particles are blown by wind to move from the material inlet of the finished product box 142 to the air outlet thereof, and during the period, the adjusting plate 143 blocks the quartz sand particles, so that the quartz sand particles fall into the corresponding finished product chambers 142a respectively, and the quartz sand particles with the required particle size are obtained. The unwanted quartz sand particle dust is blown to the air outlet of the finished product box 142 by wind power and is pumped out and collected by the second dust remover 160.
As an example, as shown in fig. 2, the intake air volume of the high pressure fan 141 is set to be 20KPa to 60KPa, and 300 to 700 square per minute. A vertical notch is formed in the upper portion of the side wall of the partition plate 144, the adjusting plate 143 can be arranged in the notch in a vertically moving mode, and the height of the adjusting plate 143 is adjusted, so that the top end of the adjusting plate 143 is located below the air inlet and is 50-350 mm away from the lower edge of the air inlet. The number of the adjusting plates 143 is 3, and the adjusting plates correspond to the partition plates 144 on the sides thereof, respectively. Therefore, the quartz sand particles with different particle sizes of four groups of 20-40 meshes, 30-50 meshes, 40-70 meshes and 70-140 meshes can be obtained by screening, the four groups of quartz sand particles are respectively settled in corresponding different finished product bins 142a along the air inlet direction of the finished product box 142 to be used as quartz sand supporting agents, and the quartz sand particles below 140 meshes are extracted and collected by the second dust remover 160.
It should be noted that, as shown in fig. 2, the air inlet amount of the high pressure fan 141 and the height of the adjusting plate 143 can be freely adjusted to obtain the quartz sand particles with different particle sizes and can be classified accurately. The embodiment does not make specific restrictions to the air intake of high pressure positive blower, the height of regulating plate.
Preferably, as shown in fig. 2, a temporary storage chamber 145 is provided inside the finished product chamber 142a. The quartz sand particles falling into the finished product chamber can be buffered and temporarily stored through the temporary storage bin.
Preferably, as shown in fig. 1, the outlet of the first dust collector 150 is communicated with the induced draft of the induced draft fan 170 separately provided to form an external circulation. The outlet of the second dust collector 160 is communicated with the induced draft port of the high pressure fan 141 through an air duct 180 to form an internal circulation. The dust can be collected more effectively by the arranged induced draft fan 170 and the high pressure fan 141. Meanwhile, the high pressure fan 141 and the second dust remover 160 form an internal circulation through the air pipe 180, so that the allocation of fans can be reduced, and the energy consumption is reduced.
The preparation facilities of quartz sand proppant of this embodiment through high pressure positive blower, finished product case, a plurality of regulating plate and a plurality of division board that set up, can realize that the high efficiency is hierarchical, realizes that the quartz sand granule of all required specifications of single material loading once-through separation also can reduce energy consumption and equipment investment.
In another aspect of the present invention, as shown in fig. 3, a method for preparing a quartz sand proppant is provided, wherein the preparation apparatus described above is adopted, and the specific structure of the preparation apparatus can refer to the related description above, which is not repeated herein. The preparation method comprises the following steps:
s210, providing a quartz sand raw material.
Specifically, in the step, the required quartz sand raw material is collected and obtained first, and preparation is made for the subsequent steps of drying, grinding, separating and the like. As an example, as shown in fig. 1, the mined quartz sand raw material may be first transported to an upper storage bin 500 via a loader or a transport vehicle. It should be noted that, in this step, various different means may be adopted to provide the quartz sand raw material, and this embodiment does not limit this, and may be determined specifically according to actual needs.
S220, conveying the quartz sand raw material to the dryer component, and drying the quartz sand raw material.
Specifically, as shown in fig. 1, in this step, the raw quartz sand needs to be conveyed to a dryer assembly 110 for drying treatment, and the surface dust is separated by mutual friction during the drying process.
As an example, as shown in fig. 1, the dryer assembly 110 includes a heating furnace 111 and a three-cylinder dryer 112, the raw material of silica sand is conveyed into the three-cylinder dryer 112 by a belt conveyor 600 to be processed into silica sand particles, and the heating furnace 111 provides hot air to the three-cylinder dryer 112 as a heat source of the dryer.
And S230, conveying the dried quartz sand particles to the grinding machine, and grinding the quartz sand particles.
Specifically, as shown in fig. 1, in this step, the dried quartz sand particles need to be conveyed to the grinder 120 by the belt conveyor 600 to be ground, and high-strength friction is formed on the surfaces of the quartz sand particles during the grinding process, so as to promote the dust on the surfaces of the quartz sand particles to be detached again.
As an example, as shown in fig. 1, the grinder 120 may be provided with multi-stage grinding rollers, and high-intensity friction is formed on the quartz sand particles in the grinder 120 by the rotation of the multi-stage grinding rollers to promote the dust on the surface of the quartz sand particles to be detached again, and for the quartz sand particles with defects, the quartz sand particles are broken by the high-intensity friction to improve the strength of the finished product. The grinding process can promote friction and collision between the grinding roller and the quartz sand particles and between the quartz sand particles, so that edges and corners of the quartz sand particles are ground off, and the sphericity is finally improved. In addition, during the friction and collision process, the acid soluble substance can be promoted to be separated from the particles, so that the acid solubility is reduced.
S240, conveying the ground quartz sand particles to the coarse separation sieve, and performing coarse separation on the quartz sand particles to form first quartz sand particles with particle sizes larger than a preset particle size and second quartz sand particles with particle sizes smaller than the preset particle size.
Specifically, as shown in fig. 1, in this step, the quartz sand particles after grinding treatment need to be conveyed to a coarse separation sieve 130 to be cooled and separated, and second quartz sand particles smaller than a preset particle size are obtained by sieving.
As an example, as shown in fig. 1, after being sieved, quartz sand particles with a particle size of 20 meshes or more can be separated, and quartz sand particles with a particle size of 20 meshes or less are lifted into a buffer bin 800 by a bucket elevator 700. The quartz sand particles with the particle size of less than 20 meshes are obtained.
And S250, conveying the second quartz sand particles to the wind classifier, and performing wind classification on the second quartz sand particles to obtain the quartz sand propping agents with different particle sizes.
Specifically, as shown in fig. 1, in this step, the obtained second quartz sand particles smaller than the preset particle size need to be subjected to wind classification to obtain the required finished quartz sand proppant products with different specifications.
S310, collecting dust separated from the surface of the quartz sand particles in the drying, grinding and coarse separation processes by the first dust remover.
Specifically, as shown in fig. 1, in this step, the first dust collector 150 is respectively communicated with the air outlets of the dryer assembly 110, the grinder 120 and the coarse separation sieve 130, and the dust generated in the drying, grinding and coarse separation processes is collected by the first dust collector 150, and the collected dust can be used as sand powder for secondary use.
And S410, collecting quartz sand particle dust in the wind classification process by the second dust remover.
Specifically, as shown in fig. 1, in this step, the second dust collector 160 is communicated with the air outlet of the air classifier 140, the quartz sand particles are classified in the air classifier 140 to obtain the quartz sand proppant with the required particle size, the residual quartz sand particle dust after classification is collected by the second dust collector 160, and the collected quartz sand particle dust is reused as sand powder.
Exemplarily, as shown in fig. 2, when the preparation apparatus 100 includes a high pressure fan 141, a finishing tank 142, a plurality of regulating plates 143, and a plurality of partition plates 144. The conveying the second quartz sand particles to the air classifier 140, and performing air classification on the second quartz sand particles to obtain the quartz sand proppants with different particle sizes includes:
s251, adjusting the heights of the adjusting plates 143 by controlling the feeding amount of the second sand particles of the finished product tank 142 and the intake amount fed by the high pressure fan 141, so as to settle the second sand particles of different particle sizes in the corresponding finished product chambers 142a.
Specifically, as shown in fig. 2, in this step, the feeding amount of the quartz sand particles, the air intake amount fed by the high pressure fan 141, and the height-adjustable adjusting plate 143 are matched with each other, so that high-efficiency classification can be realized, and all required finished quartz sand proppants with different specifications can be obtained by one-time separation through single feeding.
It should be noted that, in the foregoing, the belt conveyor and the bucket elevator are respectively used for conveying, besides the two conveying devices, the present invention may also use other conveying devices to complete the conveying operation, and this embodiment is not limited in particular.
In another aspect of the present invention, a quartz sand proppant is provided, which is prepared and formed by using the preparation device described above. The specific structure of the preparation device can refer to the related descriptions, and is not described herein again.
The invention provides a quartz sand proppant and a preparation device and method thereof, which can be free from washing in the process of preparing the quartz sand proppant, reduce equipment investment and reduce drying energy consumption and workshop pollution at the same time. The dust can be recycled, the turbidity of the propping agent is effectively controlled, the strength and the sphericity of the propping agent are improved, and the acid solubility is reduced. The production efficiency can also be improved.
It will be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present invention, and the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. The preparation device of the quartz sand proppant is characterized by comprising a dryer component, a grinding machine, a coarse separation sieve, an air classifier, a first dust remover and a second dust remover;
the feeding port of the dryer component is used for receiving quartz sand raw materials, the feeding port of the grinding machine is connected with the discharging port of the dryer component, the discharging port of the grinding machine is connected with the feeding port of the coarse separation sieve, and the discharging port of the coarse separation sieve is connected with the feeding port of the air classifier;
the inlet of the first dust remover is respectively communicated with the air outlets of the dryer component, the grinding machine and the coarse separation sieve, and the inlet of the second dust remover is communicated with the air outlet of the air classifier.
2. The apparatus of claim 1, wherein said dryer assembly comprises a furnace and a triple-cylinder dryer;
the heating furnace is arranged on the inlet side of the three-cylinder dryer in series.
3. The apparatus of claim 1, wherein the grinding mill is provided with multi-stage grinding rollers.
4. The apparatus of any of claims 1 to 3, wherein the air classifier comprises a high pressure fan, a finishing tank, a plurality of regulating plates, and a plurality of partition plates;
the feeding port of the finished product box is communicated with the discharging port of the coarse separation screen, the air inlet of the finished product box is communicated with the air outlet of the high-pressure fan, and the air outlet of the finished product box is communicated with the inlet of the second dust remover;
the plurality of partition plates are arranged at intervals along the air inlet direction of the finished product box so as to divide the finished product box into a plurality of finished product chambers;
the adjusting plates are arranged on the corresponding partition plates in a lifting manner so as to adjust the vertical distance between the adjusting plates and the air inlet.
5. The apparatus of claim 4, wherein a buffer bin is disposed inside the finished product chamber.
6. The apparatus for preparing a quartz sand proppant as set forth in any one of claims 1 to 3, wherein the outlet of the first dust collector is communicated with an induced draft of a separately provided induced draft fan to form an external circulation;
and the outlet of the second dust remover is communicated with the induced draft port of the high-pressure fan through an air pipe to form internal circulation.
7. A method for preparing a quartz sand proppant, characterized in that the preparation device of any one of claims 1 to 6 is used, and the method comprises the following steps:
providing a quartz sand raw material;
conveying the quartz sand raw material to the dryer component, and drying the quartz sand raw material;
conveying the dried quartz sand particles to the grinding machine, and grinding the quartz sand particles;
conveying the ground quartz sand particles to the coarse separation sieve, and performing coarse separation on the quartz sand particles to form first quartz sand particles with a particle size larger than a preset particle size and second quartz sand particles with a particle size smaller than the preset particle size;
conveying the second quartz sand particles to the wind classifier, and performing wind classification on the second quartz sand particles to obtain quartz sand proppants with different particle sizes;
the first dust remover collects dust separated from the surface of the quartz sand particles in the drying, grinding and rough separation processes;
the second dust remover collects quartz sand particle dust in the air classification process.
8. The method of making a quartz sand proppant of claim 7, wherein when the means for making comprises a high pressure blower, a finished bin, a plurality of conditioning plates, and a plurality of divider plates;
the step of conveying the second quartz sand particles to the wind classifier, and performing wind classification on the second quartz sand particles to obtain the quartz sand proppants with different particle sizes comprises the following steps:
the heights of the adjusting plates are adjusted by controlling the feeding amount of the second quartz sand particles of the finished product box and the air inlet amount fed by the high-pressure fan, so that the second quartz sand particles with different particle sizes are respectively settled in the corresponding finished product chambers.
9. The method of making a silica sand proppant as set forth in claim 7, wherein the silica sand feedstock is delivered to the dryer assembly using a belt conveyor; and/or the presence of a gas in the atmosphere,
conveying the dried quartz sand particles to the grinding machine by using a belt conveyor; and/or the presence of a gas in the atmosphere,
and conveying the second quartz sand particles to the air classifier by using a bucket elevator.
10. A quartz sand proppant characterized by being produced by using the production apparatus according to any one of claims 1 to 6.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117505256A (en) * | 2024-01-06 | 2024-02-06 | 孝义市鼎润新材料科技有限公司 | A selection by winnowing screening machine for after haydite sand raw materials is broken |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100197532A1 (en) * | 2009-01-30 | 2010-08-05 | Unimin Corporation | Method of making proppant used in gas or oil extraction |
| CN202180055U (en) * | 2011-06-13 | 2012-04-04 | 中信重工机械股份有限公司 | Cake material scattering and grading device |
| CN204052160U (en) * | 2014-05-30 | 2014-12-31 | 福建南方路面机械有限公司 | A kind of selection by winnowing sand device |
| CN106861869A (en) * | 2017-01-05 | 2017-06-20 | 江苏赛日实业有限公司 | A kind of multistage dry-method sand manufacturing production line and its technology for making sand |
| CN208912542U (en) * | 2018-09-30 | 2019-05-31 | 三门峡上阳机械制造有限公司 | A kind of refuse air-selective separator |
| CN209756185U (en) * | 2019-01-15 | 2019-12-10 | 湖南海泰博农生物科技有限公司 | Medicinal material processing tablet press |
| CN111375548A (en) * | 2020-03-30 | 2020-07-07 | 北京昆仑隆源石油开采技术有限公司 | Quartz sand proppant and preparation method and preparation device thereof |
| CN111495553A (en) * | 2020-04-24 | 2020-08-07 | 郑州市熔盛耐材助剂有限公司 | Production process of quartz sand for fracturing |
| CN112973935A (en) * | 2021-02-05 | 2021-06-18 | 张鹏飞 | Dry production process of quartz sandstone lump ore as fracturing propping agent |
| CN113399263A (en) * | 2021-07-06 | 2021-09-17 | 向光联 | Quartz sand winnowing equipment and use method thereof |
| CN113845118A (en) * | 2021-09-13 | 2021-12-28 | 陕西福瑞珂能源科技有限公司 | Preparation method for improving compressive strength of quartz sand proppant for fracturing |
| WO2022021960A1 (en) * | 2020-07-28 | 2022-02-03 | 贵州成智重工科技有限公司 | 6s processing process and production line of coarse and fine meso- and microaggregates for concrete |
| CN114289158A (en) * | 2021-12-29 | 2022-04-08 | 辽宁隆源砂业有限公司 | Petroleum fracturing propping agent and preparation process thereof |
-
2022
- 2022-08-11 CN CN202210961807.6A patent/CN115212955B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100197532A1 (en) * | 2009-01-30 | 2010-08-05 | Unimin Corporation | Method of making proppant used in gas or oil extraction |
| CN202180055U (en) * | 2011-06-13 | 2012-04-04 | 中信重工机械股份有限公司 | Cake material scattering and grading device |
| CN204052160U (en) * | 2014-05-30 | 2014-12-31 | 福建南方路面机械有限公司 | A kind of selection by winnowing sand device |
| CN106861869A (en) * | 2017-01-05 | 2017-06-20 | 江苏赛日实业有限公司 | A kind of multistage dry-method sand manufacturing production line and its technology for making sand |
| CN208912542U (en) * | 2018-09-30 | 2019-05-31 | 三门峡上阳机械制造有限公司 | A kind of refuse air-selective separator |
| CN209756185U (en) * | 2019-01-15 | 2019-12-10 | 湖南海泰博农生物科技有限公司 | Medicinal material processing tablet press |
| CN111375548A (en) * | 2020-03-30 | 2020-07-07 | 北京昆仑隆源石油开采技术有限公司 | Quartz sand proppant and preparation method and preparation device thereof |
| CN111495553A (en) * | 2020-04-24 | 2020-08-07 | 郑州市熔盛耐材助剂有限公司 | Production process of quartz sand for fracturing |
| WO2022021960A1 (en) * | 2020-07-28 | 2022-02-03 | 贵州成智重工科技有限公司 | 6s processing process and production line of coarse and fine meso- and microaggregates for concrete |
| CN112973935A (en) * | 2021-02-05 | 2021-06-18 | 张鹏飞 | Dry production process of quartz sandstone lump ore as fracturing propping agent |
| CN113399263A (en) * | 2021-07-06 | 2021-09-17 | 向光联 | Quartz sand winnowing equipment and use method thereof |
| CN113845118A (en) * | 2021-09-13 | 2021-12-28 | 陕西福瑞珂能源科技有限公司 | Preparation method for improving compressive strength of quartz sand proppant for fracturing |
| CN114289158A (en) * | 2021-12-29 | 2022-04-08 | 辽宁隆源砂业有限公司 | Petroleum fracturing propping agent and preparation process thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117505256A (en) * | 2024-01-06 | 2024-02-06 | 孝义市鼎润新材料科技有限公司 | A selection by winnowing screening machine for after haydite sand raw materials is broken |
| CN117505256B (en) * | 2024-01-06 | 2024-03-22 | 孝义市鼎润新材料科技有限公司 | A selection by winnowing screening machine for after haydite sand raw materials is broken |
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|---|---|
| CN115212955B (en) | 2024-07-23 |
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