CN113560032A - One-stage wet mica removing process for machine-made sand - Google Patents
One-stage wet mica removing process for machine-made sand Download PDFInfo
- Publication number
- CN113560032A CN113560032A CN202110812742.4A CN202110812742A CN113560032A CN 113560032 A CN113560032 A CN 113560032A CN 202110812742 A CN202110812742 A CN 202110812742A CN 113560032 A CN113560032 A CN 113560032A
- Authority
- CN
- China
- Prior art keywords
- sand
- mica
- product
- machine
- magnetic separation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- 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
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a one-stage flotation mica removing process for machine-made sand, which relates to the field of sand production and comprises a slurry mixing process, a magnetic separation process, a sand washing process, a concentration process and a filtering process. Compared with the prior art, the invention has the beneficial effects that: the invention adopts a wet process, does not cause dust pollution of the surrounding environment, and is more environment-friendly than the traditional wind method; in a certain field intensity range, the method can remove the redundant mica by adopting a section of magnetic separation, and has simple process; the invention can obtain a purer byproduct mica for other purposes.
Description
Technical Field
The invention relates to the field of sandstone production, in particular to a one-stage wet mica removing process for machine-made sand.
Background
In the production of the machine-made sand, because mother rock contains mica minerals and the like, the produced machine-made sand has a certain mica content, wherein the mica content of the machine-made sand exceeds the requirement of the construction sand in the national standard GBT14684-2011 on the mica content, so that the product quality is unqualified, the machine-made sand of a part of machine-made sand cannot be normally used, and the investment failure and the waste of resources are caused. The mica is removed by adopting wind power in the traditional technology, and a large amount of dust can be discharged by the wind power, so that the environmental dust pollution is easily caused. Therefore, a mica removing process is needed, which can remove the overhigh mica content in the machine-made sand and ensure that the machine-made sand containing mica exceeds the standard meets the national standard requirement.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a one-stage wet mica removing process for machine-made sand, which has the advantages of good mica removing effect and high production efficiency.
The purpose of the invention is achieved by the following technical scheme: the one-stage wet mica removing process for machine-made sand comprises the following steps:
step one, a size mixing procedure: fully mixing the raw material sand with water to obtain a mixed product a;
step two, a magnetic separation process: carrying out magnetic separation on the product a obtained in the step one through magnetic separation equipment to obtain a product b adsorbed by the magnetic separation equipment and a product c not adsorbed by the magnetic separation equipment;
step three, sand washing working procedure: washing sand of the product b obtained in the step two through sand washing equipment to obtain sand d and wastewater e after mica removal;
step four, a concentration process: concentrating the product c obtained in the step two through concentration and dehydration equipment to obtain concentrated ore pulp f and waste water g;
step five, a filtering process: and D, filtering the concentrated ore pulp f obtained in the step four through a filtering device to obtain mica h and wastewater i.
As a preferable technical scheme, the water content percentage of the product a in the step one is 40-90%.
As a preferable technical scheme, in the second step, the magnetic separation equipment is one or more of a wet-type cylinder magnetic separator, a wet-type disc magnetic separator, a flat magnetic separator and a vertical ring high gradient magnetic separator; the magnetic field intensity of the magnetic separation equipment is 2500-15000 Gs.
As a preferable technical scheme, the sand washing equipment in the third step is one or more of a sand washing machine, a sieve, a hydrocyclone and a spiral classifier.
As a preferable technical scheme, the concentration and dehydration equipment in the fourth step is one or two of a thickener and a concentration tank.
As a preferred technical scheme, 2-50 g of flocculating agent is added into each ton of the mixture in the fourth step according to the weight of solids; the water content of the concentrated ore pulp f is not more than 55 percent by mass.
As a preferable technical scheme, the filtering equipment in the fifth step is one or two of a filter press, a spiral hill type vacuum filter, a belt type vacuum filter and a ceramic filter.
The invention has the beneficial effects that:
1. the invention adopts a wet process, does not cause dust pollution of the surrounding environment, and is more environment-friendly than the traditional wind method;
2. in a certain magnetic field intensity range, the method can remove the redundant mica by adopting a section of magnetic separation, and has simple process;
3. the invention can obtain a purer byproduct mica for other purposes.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The invention will be described in detail below with reference to the following drawings:
example 1: a one-stage wet mica removing process for machine-made sand comprises the following steps:
step one, a size mixing procedure: fully mixing the raw material sand with water to obtain a mixed product a, wherein the water content of the product a is 60% by weight;
step two, a magnetic separation process: carrying out magnetic separation on the product a obtained in the step one by a wet type drum magnetic separator with the magnetic field intensity of 5000Gs to obtain a product b adsorbed by the magnetic separator and a product c not adsorbed by the magnetic separator;
step three, sand washing working procedure: washing sand of the product b obtained in the step two by a wheel type sand washer to obtain sand d and wastewater e after mica removal;
step four, a concentration process: concentrating the product c obtained in the step two by a thickener, and adding 30g of flocculant into each ton of the product c according to the weight of solid during concentration; obtaining concentrated ore pulp f and waste water g with the water content of 45 percent by mass;
step five, a filtering process: and (4) filtering the concentrated ore pulp f obtained in the step four through a spiral hill type vacuum filter to obtain mica h and wastewater i.
Example 2: a one-stage wet mica removing process for machine-made sand comprises the following steps:
step one, a size mixing procedure: fully mixing the raw material sand with water to obtain a mixed product a, wherein the water content of the product a is 55% by weight;
step two, a magnetic separation process: carrying out magnetic separation on the product a obtained in the step one by a wet drum magnetic separator with the magnetic field intensity of 5500Gs to obtain a product b adsorbed by the magnetic separator and a product c not adsorbed by the magnetic separator;
step three, sand washing working procedure: washing sand from the product b obtained in the step two through a sieve to obtain sand d and wastewater e after mica removal;
step four, a concentration process: concentrating the product c obtained in the step two by a thickener, and adding 25g of flocculant into each ton of the product c according to the weight of solid during concentration; obtaining concentrated ore pulp f with water content of 52% and waste water g;
step five, a filtering process: and (4) filtering the concentrated ore pulp f obtained in the step four through a spiral hill type vacuum filter to obtain mica h and wastewater i.
Example 3: a one-stage wet mica removing process for machine-made sand comprises the following steps:
step one, a size mixing procedure: fully mixing the raw material sand with water to obtain a mixed product a, wherein the water content of the product a is 55% by weight;
step two, a magnetic separation process: carrying out magnetic separation on the product a obtained in the step one by a wet type cylinder magnetic separator with the magnetic field intensity of 6000Gs to obtain a product b adsorbed by the magnetic separator and a product c not adsorbed by the magnetic separator;
step three, sand washing working procedure: washing sand of the product b obtained in the step two by a wheel type sand washer to obtain sand d and wastewater e after mica removal;
step four, a concentration process: concentrating the product c obtained in the step two by a thickener, and adding 30g of flocculant into each ton of the product c according to the weight of solid during concentration; obtaining concentrated ore pulp f with the water content of 40% and waste water g;
step five, a filtering process: and (4) filtering the concentrated ore pulp f obtained in the step four through a belt type vacuum filter to obtain mica h and wastewater i.
Example 4: a one-stage wet mica removing process for machine-made sand comprises the following steps:
step one, a size mixing procedure: fully mixing the raw material sand with water to obtain a mixed product a, wherein the water content of the product a is 60% by weight;
step two, a magnetic separation process: carrying out magnetic separation on the product a obtained in the step one by a vertical ring high gradient magnetic separator with the magnetic field intensity of 3500Gs to obtain a product b adsorbed by the magnetic separator and a product c not adsorbed by the magnetic separator;
step three, sand washing working procedure: washing sand of the product b obtained in the step two by a wheel type sand washer to obtain sand d and wastewater e after mica removal;
step four, a concentration process: concentrating the product c obtained in the step two by a thickener, and adding 25g of flocculant into each ton of the product c according to the weight of solid during concentration; obtaining concentrated ore pulp f and waste water g with the water content of 50 percent by mass;
step five, a filtering process: and (4) filtering the concentrated ore pulp f obtained in the step four through a spiral hill type vacuum filter to obtain mica h and wastewater i.
Example 5: a one-stage wet mica removing process for machine-made sand comprises the following steps:
step one, a size mixing procedure: fully mixing the raw material sand with water to obtain a mixed product a, wherein the water content of the product a is 75% by weight;
step two, a magnetic separation process: carrying out magnetic separation on the product a obtained in the step one by a wet drum magnetic separator with the magnetic field intensity of 4500Gs to obtain a product b adsorbed by the magnetic separator and a product c not adsorbed by the magnetic separator;
step three, sand washing working procedure: washing sand of the product b obtained in the step two by a wheel type sand washer to obtain sand d and wastewater e after mica removal;
step four, a concentration process: concentrating the product c obtained in the step two by a thickener, and adding 35g of flocculant into each ton of the product c according to the weight of solid during concentration; obtaining concentrated ore pulp f with the water content of 40% and waste water g;
step five, a filtering process: and (4) filtering the concentrated ore pulp f obtained in the step four through a spiral hill type vacuum filter to obtain mica h and wastewater i.
Example 6: a one-stage wet mica removing process for machine-made sand comprises the following steps:
step one, a size mixing procedure: fully mixing the raw material sand with water to obtain a mixed product a, wherein the water content of the product a is 65% by weight;
step two, a magnetic separation process: carrying out magnetic separation on the product a obtained in the step one by a vertical ring high gradient magnetic separator with the magnetic field intensity of 4000Gs to obtain a product b adsorbed by the magnetic separator and a product c not adsorbed by the magnetic separator;
step three, sand washing working procedure: washing sand of the product b obtained in the step two through a spiral classifier to obtain sand d and wastewater e after mica removal;
step four, a concentration process: concentrating the product c obtained in the step two by a thickener, and adding 30g of flocculant into each ton of the product c according to the weight of solid during concentration; obtaining concentrated ore pulp f with the water content of 40% and waste water g;
step five, a filtering process: and (4) filtering the concentrated ore pulp f obtained in the step four through a spiral hill type vacuum filter to obtain mica h and wastewater i.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts a wet process, does not cause dust pollution of the surrounding environment, and is more environment-friendly than the traditional wind method;
2. in a certain field intensity range, the method can remove the redundant mica by adopting a section of magnetic separation, and has simple process;
3. the invention can obtain a purer byproduct mica for other purposes.
It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.
Claims (7)
1. A one-stage wet mica removing process for machine-made sand is characterized in that: the method comprises the following steps:
step one, a size mixing procedure: fully mixing the raw material sand with water to obtain a mixed product a;
step two, a magnetic separation process: carrying out magnetic separation on the product a obtained in the step one through magnetic separation equipment to obtain a product b adsorbed by the magnetic separation equipment and a product c not adsorbed by the magnetic separation equipment;
step three, sand washing working procedure: washing sand of the product b obtained in the step two through sand washing equipment to obtain sand d and wastewater e after mica removal;
step four, a concentration process: concentrating the product c obtained in the step two through concentration and dehydration equipment to obtain concentrated ore pulp f and waste water g;
step five, a filtering process: and D, filtering the concentrated ore pulp f obtained in the step four through a filtering device to obtain mica h and wastewater i.
2. The machine-made sand one-stage wet mica removing process according to claim 1, which is characterized in that: the water content percentage of the product a in the first step is 40-90%.
3. The machine-made sand one-stage wet mica removing process according to claim 1, which is characterized in that: in the second step, the magnetic separation equipment is one or more of a wet-type cylinder magnetic separator, a wet-type disc magnetic separator, a flat magnetic separator and a vertical ring high gradient magnetic separator; the magnetic field intensity of the magnetic separation equipment is 2500-15000 Gs.
4. The machine-made sand one-stage wet mica removing process according to claim 1, which is characterized in that: and in the third step, the sand washing equipment is one or more of a sand washing machine, a sieve, a hydrocyclone and a spiral classifier.
5. The machine-made sand one-stage wet mica removing process according to claim 1, which is characterized in that: in the fourth step, the concentration and dehydration equipment is one or two of a thickener and a concentration tank.
6. The machine-made sand one-stage wet mica removing process according to claim 1, which is characterized in that: adding 2-50 g of flocculating agent per ton of solid weight in the fourth step; the water content of the concentrated ore pulp f is not more than 55 percent by mass.
7. The machine-made sand one-stage wet mica removing process according to claim 1, which is characterized in that: and in the fifth step, the filtering equipment is one or two of a filter press, a disk mountain type vacuum filter, a belt type vacuum filter and a ceramic filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812742.4A CN113560032A (en) | 2021-07-19 | 2021-07-19 | One-stage wet mica removing process for machine-made sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812742.4A CN113560032A (en) | 2021-07-19 | 2021-07-19 | One-stage wet mica removing process for machine-made sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113560032A true CN113560032A (en) | 2021-10-29 |
Family
ID=78165517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110812742.4A Pending CN113560032A (en) | 2021-07-19 | 2021-07-19 | One-stage wet mica removing process for machine-made sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113560032A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733176A (en) * | 2017-03-13 | 2017-05-31 | 中国电建集团成都勘测设计研究院有限公司 | For Eradicates except the separation system of biotite in artificial sand |
-
2021
- 2021-07-19 CN CN202110812742.4A patent/CN113560032A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733176A (en) * | 2017-03-13 | 2017-05-31 | 中国电建集团成都勘测设计研究院有限公司 | For Eradicates except the separation system of biotite in artificial sand |
Non-Patent Citations (1)
| Title |
|---|
| 梁福林: "CN106733176", 《湖北水利发电》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103240168B (en) | Grading separation and dehydration method for high-ash difficult-separation coal slime | |
| CN111659527B (en) | Gasification slag water medium cyclone gravity carbon ash separation device and method | |
| CN100569381C (en) | The iron-removing concentrating process of potassic feldspar | |
| CN110201791B (en) | Comprehensive utilization method of sandy kaolin tailings containing tourmaline, muscovite and quartz sand | |
| CN102773153B (en) | Lignite separation process | |
| CN103433123A (en) | Process for ore pulp desliming and ore slurry dehydration | |
| CN111644264B (en) | A heavy-magnetic combined separation process for gasification slag | |
| KR101024540B1 (en) | Coal Ash Purification and Product Recovery Method | |
| CN110270432B (en) | A kind of method for removing non-calcic mineral impurities in carbide slag | |
| CN106179717A (en) | A kind of full level of thermal coal is selected in simplified heavy medium sorting process | |
| CN110624506B (en) | Method for preparing water purifying agent using coal gasification slag and obtained water purifying agent | |
| CN101716439A (en) | Method for dehydrating micro-particle slurry | |
| CN107344141B (en) | Process for extracting clean coal from coal slime | |
| CN111302589B (en) | Efficient dewatering method for urban construction waste mud | |
| CN103663481A (en) | Purification technology for low-grade bentonite | |
| CN109365121B (en) | A low-rank coal and rock micro-component enrichment process | |
| CN103934080B (en) | Direct liquefaction coal and preparation method thereof | |
| CN107805043B (en) | Method for preparing kaolin for medium-high grade ceramics from fine tailings and poor-quality kaolin | |
| CN105665133B (en) | A kind of comprehensive reutilization method of stone material tailing resource | |
| CN108993760A (en) | A kind of low-grade difficulty of weathering selects manganese ore sorting process | |
| CN104437828A (en) | Efficient desulfuration and deashing dense medium separation technology for fine coal | |
| CN113546750A (en) | Two-stage wet mica removing process for machine-made sand | |
| CN113560032A (en) | One-stage wet mica removing process for machine-made sand | |
| CN108031546B (en) | A method for recovering iron from red mud | |
| CN110004263B (en) | Process for producing iron concentrate powder by red mud fluidized bed method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211029 |