CN114042522A - Glass silica sand production system and method - Google Patents
Glass silica sand production system and method Download PDFInfo
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- CN114042522A CN114042522A CN202111529042.0A CN202111529042A CN114042522A CN 114042522 A CN114042522 A CN 114042522A CN 202111529042 A CN202111529042 A CN 202111529042A CN 114042522 A CN114042522 A CN 114042522A
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 286
- 239000004576 sand Substances 0.000 title claims abstract description 173
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 56
- 239000011521 glass Substances 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 112
- 230000018044 dehydration Effects 0.000 claims abstract description 28
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 28
- 239000002699 waste material Substances 0.000 claims abstract description 14
- 239000002689 soil Substances 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000002893 slag Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 238000012958 reprocessing Methods 0.000 claims description 9
- 230000007613 environmental effect Effects 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000012141 concentrate Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 239000013055 pulp slurry Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 2
- 239000013590 bulk material Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- 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
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- 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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a glass silica sand production system, which comprises a crushing system, a desliming system, a grading system, a dewatering system and an environment-friendly system; the crushing system is connected with the desliming system, the desliming system is connected with the grading system, and after treatment of the grading system, water-containing fine sand and water-containing common sand are obtained; the dehydration system comprises a fine sand dehydration system and a common sand dehydration system which are respectively used for dehydrating water-containing fine sand and water-containing common sand to obtain a finished fine sand product and a finished common sand product; the environment-friendly system is connected with the desliming system and the common sand dewatering system and is used for separating the separated mud and water to obtain waste mud and clear water; the glass silica sand production system further comprises a demagnetizing system used for demagnetizing the finished product of the fine sand. The sand-soil separation method has the advantages of good sand-soil separation effect, high production efficiency, separated mud and water recycling, water environment pollution avoidance, and silica sand classification by using a hydraulic classifier to obtain fine sand products and common sand products.
Description
Technical Field
The invention belongs to the field of silica sand production, and relates to a glass silica sand production system and a glass silica sand production method.
Background
The glass is formed by fusing silica and other chemical substances together, and the main production raw materials are as follows: soda ash, limestone and silica sand. Forming a continuous network structure when melted, gradually increasing in viscosity during cooling and hardening the silicate-based non-metallic material which causes crystallization thereof.
Silica sand is an indispensable raw material in the glass production process, and the silica sand is required to be subjected to impurity removal (mud, magnetic impurities and other impurities) in the glass production process so as to ensure the production quality of glass. The sand-soil separation effect of the existing glass silica sand production system is poor, the separated mud and water are directly discharged outside, the water environment is polluted, silica sand is not classified, and the obtained product is single.
Disclosure of Invention
The invention aims to provide a glass silica sand production system and a method, aiming at the technical problems that the sand-soil separation effect of the existing glass silica sand production system is poor, the separated mud and water are directly discharged, the water environment is polluted, silica sand is not classified, and the obtained product is single.
The invention provides a glass silica sand production system, which comprises a crushing system, a desliming system, a grading system, a dewatering system and an environment-friendly system, wherein the crushing system is connected with the desliming system;
the crushing system is connected with the desliming system, the desliming system is connected with the grading system, and after treatment of the grading system, water-containing fine sand and water-containing common sand are obtained;
the dehydration system comprises a fine sand dehydration system and a common sand dehydration system which are respectively used for dehydrating water-containing fine sand and water-containing common sand to obtain a finished fine sand product and a finished common sand product;
the environmental protection system is connected with the desliming system and the common sand dewatering system and is used for separating and treating separated mud and water to obtain waste mud and clean water, and the clean water is reused in the crushing system.
In a preferred scheme, the glass silica sand production system further comprises a demagnetizing system, and the demagnetizing system is used for demagnetizing the finished product of the fine sand to obtain the high-quality glass silica sand.
The preferable scheme, environmental protection system includes mud-water separator, pressure filter, mud-water separator is used for collecting waste water, desliming fill branch muddy water, ordinary sand dehydration fill branch muddy water and handle to the washery, obtains useless mud and clear water, the pressure filter is used for carrying out the filter-pressing to useless mud, and the direct outward transport of gained useless mud result, gained clear water is used for again broken system.
Further, the demagnetizing system adopts a flat plate type iron remover or a strong magnetic iron remover.
According to the preferable scheme, the crushing system comprises a large-block material crushing system and a crushing system, wherein the large-block material crushing system is used for primarily crushing large-block ores and deeply crushing the large-block ores by the crushing system to obtain silica sand with preset fineness.
Furthermore, before the large ore is primarily crushed, the soil on the surface of the large ore is cleaned, and the collected wastewater enters an environment-friendly system.
The preferable scheme is that the crushing system comprises a first crusher, a first swing sieve, a second crusher, a second swing sieve and a third swing sieve, a discharge port of the first crusher is connected with a feed port of the first swing sieve, oversize products of the first swing sieve return to the first crusher for reprocessing, a discharge port of the first swing sieve is connected with a feed port of the second crusher, a discharge port of the second crusher is connected with a feed port of the second swing sieve, oversize products of the second swing sieve return to the second crusher for reprocessing, a discharge port of the second swing sieve is connected with a feed port of the third swing sieve, oversize products of the third swing sieve are used for processing casting sand, qualified powder materials enter a raw slurry tank, and are mixed with clear water to form raw slurry slag slurry.
Furthermore, the screen mesh diameter of the first swing screen is larger than that of the second swing screen, and the screen mesh diameter of the second swing screen is larger than that of the third swing screen.
Preferably, the crushing system comprises a rod mill, a fourth swing screen and a fifth swing screen, a discharge port of the rod mill is connected with a feed port of the fourth swing screen, oversize products of the fourth swing screen return to the rod mill for reprocessing, a discharge port of the fourth swing screen is connected with a feed port of the fifth swing screen, oversize products of the fifth swing screen are used for processing casting sand, qualified powder materials enter a raw slurry tank, and clear water is added to form raw slurry slag slurry.
Further, the screen mesh diameter of the fourth swing screen is larger than that of the fifth swing screen.
In the preferable scheme, the desliming system adopts a desliming hopper for desliming the primary pulp slurry, and the separated slurry enters the environment-friendly system.
Preferably, the grading system comprises a primary hydraulic classifier and a secondary hydraulic classifier, a discharge port of the primary hydraulic classifier is connected with a feed port of the secondary hydraulic classifier, the sand water separated by the primary hydraulic classifier and the secondary hydraulic classifier enters a common sand pool, and a discharge port of the secondary hydraulic classifier is connected with a fine sand pool.
In the preferred scheme, the concentrate dewatering system adopts a dewatering hopper for dewatering water-containing concentrate, and separated clear water enters a crushing system.
According to the preferable scheme, the common sand dewatering system adopts a dewatering hopper and is used for dewatering the water-containing common sand, the separated mud water directly enters the environment-friendly system, and the obtained common sand product is used as building sand.
As a general inventive concept, the present invention also provides a method for producing glass silica sand, comprising the steps of:
(1) cleaning large natural silica sand ores, then primarily crushing, deeply crushing by using a crushing system to obtain silica sand with preset fineness, and adding clear water to form primary pulp slag slurry;
(2) sending the raw slurry slag slurry obtained in the step (1) into a desliming system, separating slurry and sending the slurry into an environment-friendly system, and sending the deslimed mortar into a grading system;
(3) treating the deslimed mortar obtained in the step (2) by a grading system to obtain water-containing fine sand and water-containing common sand;
(4) respectively dehydrating the water-containing fine sand and the water-containing common sand obtained in the step (3) by using a dehydration system to obtain a fine sand finished product and a common sand finished product, and separating return water from a fine sand dehydration hopper to enter a crushing system; separating mud water from the common sand dehydration hopper and feeding the mud water into an environment-friendly system;
(5) the separated mud water is treated by an environment-friendly system to obtain waste mud and clear water;
(6) and demagnetizing the finished product of the fine sand by using a demagnetizing system to obtain the demagnetized finished product of the fine sand, namely the high-quality glass silica sand.
The invention has the following beneficial technical effects:
the invention provides a glass silica sand production system which has low requirement on equipment, good sand-soil separation effect and high production efficiency, can recycle separated mud and water, avoids polluting water environment, and utilizes a hydraulic classifier to classify silica sand to obtain fine sand products and common sand products.
The invention has simple production process and low cost, does not need to add any chemical reagent and can prepare the high-quality glass silica sand.
Drawings
FIG. 1 is an overall schematic view of a glass silica sand production system in example 1;
FIG. 2 is a schematic view showing the connection of the apparatus of a system for producing vitreous silica sand in example 2;
FIG. 3 is a process flow diagram of the method for producing vitreous silica sand in example 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
It should be noted that all references herein to "upper", "lower", "left", "right", "front" and "back" describing an orientation do not refer to that orientation unless specifically stated, but merely for convenience of description, the orientation of the product may vary from one orientation to another. An orientation that would be understood by one of ordinary skill in the art without making any creative effort would be within the scope of the present invention.
The experimental procedures described in the following examples are conventional unless otherwise specified, and the reagents and equipment, unless otherwise specified, are commercially available.
Example 1
A glass silica sand production system is shown in figure 1 and comprises a crushing system, a desliming system, a grading system, a dewatering system and an environment-friendly system;
the crushing system is connected with the desliming system, the desliming system is connected with the grading system, and after treatment of the grading system, water-containing fine sand and water-containing common sand are obtained;
the dehydration system comprises a fine sand dehydration system and a common sand dehydration system which are respectively used for dehydrating water-containing fine sand and water-containing common sand to obtain a finished fine sand product and a finished common sand product;
the environment-friendly system is connected with the desliming system and the common sand dehydration system and is used for separating the separated mud and water to obtain waste mud and clean water, and the clean water is reused in the crushing system;
the glass silica sand production system further comprises a demagnetizing system, wherein the demagnetizing system is used for demagnetizing the finished product of the fine sand to obtain high-quality glass silica sand, and the demagnetizing system adopts a flat plate type iron remover.
Example 2
A glass silica sand production system is shown in figure 2 and comprises a crushing system, a desliming system, a grading system, a dewatering system and an environment-friendly system;
the crushing system is connected with the desliming system, the desliming system is connected with the grading system, and after treatment of the grading system, water-containing fine sand and water-containing common sand are obtained;
the dehydration system comprises a fine sand dehydration system and a common sand dehydration system which are respectively used for dehydrating water-containing fine sand and water-containing common sand to obtain a finished fine sand product and a finished common sand product;
the environment-friendly system is connected with the desliming system and the common sand dehydration system and is used for separating the separated mud and water to obtain waste mud and clean water, and the clean water is reused in the crushing system;
the glass silica sand production system further comprises a demagnetizing system, wherein the demagnetizing system is used for demagnetizing finished fine sand products to obtain high-quality glass silica sand, and the demagnetizing system adopts a strong magnetic iron remover.
The crushing system comprises a large-block material crushing system and a crushing system, wherein the large-block material crushing system adopts a crusher for primarily crushing large-block ores, and then deeply crushing the large-block ores by the crushing system to obtain silica sand with preset fineness.
Cleaning soil on the surface of the large ore before primary crushing, and collecting waste water to enter an environment-friendly system.
The crushing system comprises a first crusher, a first swing sieve, a second crusher, a second swing sieve and a third swing sieve, wherein a discharge port of the first crusher is connected with a feed port of the first swing sieve, oversize products of the first swing sieve return to the first crusher for reprocessing, a discharge port of the first swing sieve is connected with a feed port of the second crusher, a discharge port of the second crusher is connected with a feed port of the second swing sieve, oversize products of the second swing sieve return to the second crusher for reprocessing, a discharge port of the second swing sieve is connected with a feed port of the third swing sieve, oversize products of the third swing sieve are used for processing casting sand, qualified powder materials enter a raw slurry tank, and raw slurry residue slurry is formed by adding clear water; the screen mesh aperture of the first swing screen is larger than that of the second swing screen, and the screen mesh aperture of the second swing screen is larger than that of the third swing screen.
The crushing system comprises a rod mill, a fourth swing screen and a fifth swing screen, wherein a discharge port of the rod mill is connected with a feed port of the fourth swing screen, oversize products of the fourth swing screen return to the rod mill for reprocessing, a discharge port of the fourth swing screen is connected with a feed port of the fifth swing screen, oversize products of the fifth swing screen are used for processing casting sand, qualified powder materials enter a raw slurry tank, and clear water is added to form raw slurry slag slurry; the screen mesh diameter of the fourth swing screen is larger than that of the fifth swing screen.
The desliming system adopts a desliming hopper for desliming the primary pulp slurry, and the separated slurry enters the environmental protection system.
The grading system comprises a primary hydraulic classifier and a secondary hydraulic classifier, wherein a discharge hole of the primary hydraulic classifier is connected with a feed hole of the secondary hydraulic classifier, sand water separated by the primary hydraulic classifier and the secondary hydraulic classifier enters a common sand pool, and a discharge hole of the secondary hydraulic classifier is connected with a fine sand pool.
The fine sand dewatering system adopts a dewatering hopper for dewatering the water-containing fine sand, and the separated clear water enters a crushing system; the common sand dewatering system adopts a dewatering hopper for dewatering the water-containing common sand, mud water is separated out and directly enters the environment-friendly system, and the obtained common sand product is used for building sand.
The environmental protection system comprises a mud-water separator and a filter press, wherein the mud-water separator is used for collecting waste water in a washing field, separating mud water from a mud-removing bucket, separating mud water from a common sand dewatering bucket and treating the mud water to obtain waste mud and clear water, the filter press is used for carrying out filter pressing on the waste mud, the obtained waste mud product is directly transported outwards, and the obtained clear water is reused in the crushing system.
Example 3
As shown in fig. 3, a method for producing glass silica sand includes the following steps:
(1) cleaning large natural silica sand ores, then primarily crushing, deeply crushing by using a crushing system to obtain silica sand with preset fineness, and adding clear water to form primary pulp slag slurry;
(2) sending the raw slurry slag slurry obtained in the step (1) into a mud removing hopper, separating mud water into an environment-friendly system, and sending the deslimed mortar into a grading system;
(3) treating the deslimed mortar obtained in the step (2) by a grading system to obtain water-containing fine sand and water-containing common sand;
(4) respectively dehydrating the water-containing fine sand and the water-containing common sand obtained in the step (3) by using a dehydration system to obtain a fine sand finished product and a common sand finished product, and separating return water from a fine sand dehydration hopper to enter a crushing system; separating mud water from the common sand dehydration hopper and feeding the mud water into an environment-friendly system;
(5) the separated mud water is treated by an environment-friendly system to obtain waste mud and clear water;
(6) and demagnetizing the finished product of the fine sand by using a demagnetizing system to obtain the demagnetized finished product of the fine sand, namely the high-quality glass silica sand.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the invention are to be considered as within the scope of the invention.
Claims (10)
1. A glass silica sand production system is characterized by comprising a crushing system, a desliming system, a grading system, a dewatering system and an environment-friendly system;
the crushing system is connected with the desliming system, the desliming system is connected with the grading system, and after treatment of the grading system, water-containing fine sand and water-containing common sand are obtained;
the dehydration system comprises a fine sand dehydration system and a common sand dehydration system which are respectively used for dehydrating water-containing fine sand and water-containing common sand to obtain a finished fine sand product and a finished common sand product;
the environment-friendly system is connected with the desliming system and the common sand dehydration system and is used for separating the separated mud and water to obtain waste mud and clean water, and the clean water is reused in the crushing system;
the glass silica sand production system also comprises a demagnetizing system which is used for demagnetizing the finished product of the fine sand to obtain the high-quality glass silica sand.
2. The glass silica sand production system according to claim 1, wherein the environmental protection system comprises a mud-water separator and a filter press, the mud-water separator is used for treating waste water collected by a washing field, mud water separated from a mud removing hopper and mud water separated from a common sand dewatering hopper to obtain waste mud and clean water; the filter press is used for carrying out filter pressing on waste mud, the obtained waste mud product is directly transported outwards, and the obtained clear water is reused in the crushing system.
3. The glass silica sand production system according to claim 1, wherein the crushing system comprises a bulk material crushing system and a crushing system, the bulk material crushing system is used for carrying out primary crushing on bulk ores and then carrying out deep crushing by the crushing system to obtain silica sand with a preset fineness;
cleaning soil on the surface of the large ore before primary crushing, and collecting waste water to enter an environment-friendly system.
4. The glass silica sand production system according to claim 3, wherein the crushing system comprises a first crusher, a first swing sieve, a second crusher, a second swing sieve and a third swing sieve, a discharge port of the first crusher is connected with a feed port of the first swing sieve, oversize products of the first swing sieve are returned to the first crusher for reprocessing, a discharge port of the first swing sieve is connected with a feed port of the second crusher, a discharge port of the second crusher is connected with a feed port of the second swing sieve, oversize products of the second swing sieve are returned to the second crusher for reprocessing, a discharge port of the second swing sieve is connected with a feed port of the third swing sieve, oversize products of the third swing sieve are used for processing casting sand, qualified powder enters a raw slurry tank, and is mixed with clear water to form raw slurry slag slurry;
the screen mesh aperture of the first swing screen is larger than that of the second swing screen, and the screen mesh aperture of the second swing screen is larger than that of the third swing screen.
5. The glass silica sand production system according to claim 3, wherein the crushing system comprises a rod mill, a fourth swing screen and a fifth swing screen, a discharge port of the rod mill is connected with a feed port of the fourth swing screen, oversize products of the fourth swing screen return to the rod mill for reprocessing, a discharge port of the fourth swing screen is connected with a feed port of the fifth swing screen, oversize products of the fifth swing screen are used for processing casting sand, qualified powder materials enter a raw slurry tank, and clear water is added to form raw slurry slag slurry;
the screen mesh diameter of the fourth swing screen is larger than that of the fifth swing screen.
6. The glass silica sand production system according to claim 1, wherein the desliming system employs a desliming hopper for desliming the virgin pulp slurry, and the separated slurry enters the environmental protection system.
7. The glass silica sand production system according to claim 1, wherein the grading system comprises a primary hydraulic classifier and a secondary hydraulic classifier, a discharge port of the primary hydraulic classifier is connected with a feed port of the secondary hydraulic classifier, sand water separated by the primary hydraulic classifier and the secondary hydraulic classifier enters a common sand pool, and a discharge port of the secondary hydraulic classifier is connected with a fine sand pool.
8. The glass silica sand production system according to claim 1, wherein the concentrate dewatering system employs a dewatering hopper for dewatering the hydrous concentrate, and the separated clear water enters the crushing system;
the common sand dewatering system adopts a dewatering hopper for dewatering the water-containing common sand, the separated muddy water directly enters the environmental protection system, and the obtained common sand product is used as building sand.
9. The glass-silica sand production system of claim 1, wherein the demagnetizing system is a flat plate type iron remover or a strong magnetic iron remover.
10. The production method of the glass silica sand is characterized by comprising the following steps:
(1) cleaning large natural silica sand ores, then primarily crushing, deeply crushing by using a crushing system to obtain silica sand with preset fineness, and adding clear water to form primary pulp slag slurry;
(2) sending the raw slurry slag slurry obtained in the step (1) into a desliming system, separating slurry and sending the slurry into an environment-friendly system, and sending the deslimed mortar into a grading system;
(3) treating the deslimed mortar obtained in the step (2) by a grading system to obtain water-containing fine sand and water-containing common sand;
(4) respectively dehydrating the water-containing fine sand and the water-containing common sand obtained in the step (3) by using a dehydration system to obtain a fine sand finished product and a common sand finished product, and separating return water from a fine sand dehydration hopper to enter a crushing system; separating mud water from the common sand dehydration hopper and feeding the mud water into an environment-friendly system;
(5) the separated mud water is treated by an environment-friendly system to obtain waste mud and clear water;
(6) and demagnetizing the finished product of the fine sand by using a demagnetizing system to obtain the demagnetized finished product of the fine sand, namely the high-quality glass silica sand.
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| CN107511241A (en) * | 2016-06-15 | 2017-12-26 | 张荣斌 | A kind of Machine-made Sand production system |
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Application publication date: 20220215 |