CN114850032A - Fog dry separation method and system - Google Patents
Fog dry separation method and system Download PDFInfo
- Publication number
- CN114850032A CN114850032A CN202210489047.3A CN202210489047A CN114850032A CN 114850032 A CN114850032 A CN 114850032A CN 202210489047 A CN202210489047 A CN 202210489047A CN 114850032 A CN114850032 A CN 114850032A
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- Prior art keywords
- dry
- mist
- unit
- fog
- sorting
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- 238000000926 separation method Methods 0.000 title claims abstract description 56
- 239000000428 dust Substances 0.000 claims abstract description 23
- 238000002360 preparation method Methods 0.000 claims abstract description 18
- 238000000746 purification Methods 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000003595 mist Substances 0.000 claims description 64
- 238000000034 method Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 5
- 239000011859 microparticle Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000002912 waste gas Substances 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 3
- 239000004088 foaming agent Substances 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 6
- 239000003245 coal Substances 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- 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
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
-
- 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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
-
- 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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/08—Cleaning arrangements
Abstract
The invention relates to a fog dry separation method and a fog dry separation system, which mainly comprise a raw material preparation unit, a fog preparation unit, an air compression unit, a dry separation unit, a circulating purification unit, a product unit and the like, wherein fog dry separation is realized by replacing an air medium with a fog medium, dry dust generated in a large amount in the existing dry separator is radically reduced, the problem of treatment of the fine dust in the prior art is solved, the explosion hidden danger of the fine dust is eliminated, the fog dry separation method and the fog dry separation system which are simple, stable in operation, high in reliability, low in separation cost and environment-friendly are realized, and the fog dry separation method and the fog dry separation system which are brand new, economic and efficient in the existing separation industry are particularly suitable for being used in high-gas mines, and the dry gangue discharge system of lump coal is simpler.
Description
Technical Field
The invention relates to a dry separation method and a dry separation system, in particular to a fog dry separation method and a fog dry separation system suitable for coal, ore and other materials.
Background
The dry separation equipment which is applied to the industry at present and takes air as a medium mainly comprises an air jigging separator, a composite dry separator and the like. The air jigging separator feeds pulsating air flow to the lower part of the air distribution plate to form a variable-speed medium flow, the separated material is periodically dispersed and settled in the variable-speed medium flow, and layering with density as a leading factor is completed within a certain time, so that separation is realized. In the composite dry separator, particles with different densities are subjected to the combined action of wind power, exciting force, gravity and bed surface friction, and separation with density as a leading factor is realized according to the potential energy diminishing theory. In the method, the airflow is used as a main power source, and the air flow brings micro-particles in the material into the airflow during working, so that a large amount of dust is generated, and the following neck clamping problem which is difficult to break through exists: firstly, the micro dust is difficult to treat, the cost is high, and the environmental pollution is easy to generate; and secondly, the micro dust has explosion danger and can not be used in an environment with explosion-proof requirements, such as underground coal mines, particularly high-gas mines.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, realize the dry separation of fog by replacing air medium with fog medium, radically reduce and eliminate a great amount of dry dust generated in the existing dry separator, thereby changing the problem of micro-dust treatment, eliminating the explosion hidden danger of micro-dust, and achieving the dry separation method and the dry separation system of fog with simple system, stable operation, high reliability, low separation cost and environmental protection.
The technical scheme of the invention is summarized as follows:
a fog dry separation method comprises an existing dry separation method taking air as a medium, wherein dry separation is realized by replacing the air medium with a fog medium, and dry dust generated in a large amount in an existing dry separator is reduced.
The mist dry separation method is characterized in that the mist medium is dry mist.
The fog dry separation method of the invention, wherein the fog medium is wet fog.
The dry mist sorting method comprises the following steps of sorting the mist, wherein the mist medium is supersaturated water mist.
The mist dry separation method is characterized in that the mist medium is mist generated by mixing two or more than two media.
The mist dry sorting method comprises the step of carrying out dry sorting on mist, wherein the mist medium is water foam mist generated by the action of water and a foaming agent.
A fog dry separation system mainly comprises a raw material preparation unit, a fog preparation unit, a gas compression unit, a dry separation unit, a circulating purification unit, a product unit and the like. The raw material preparation unit sends prepared sorted materials into the dry separation unit, the mist preparation unit sends prepared mist into the air compression unit, the air compression unit sends mixed mist into the dry separation unit, products separated by the dry separation unit enter the product unit, waste gas generated by the dry separation unit enters the circulating purification unit, air purified by the circulating purification unit enters the air compression unit, and microparticles separated by the circulating purification unit enter the product unit.
According to the dry mist sorting system, the mist preparation unit and the air compression unit can be compounded into one unit.
Compared with the prior art, the invention fully shows the following advantages:
dry dust is reduced in the separator, so that the problem of environmental pollution is avoided;
dry dust is eliminated in the sorting machine, and explosion hidden danger is eliminated;
the system is simple, stable in operation, high in reliability, low in sorting cost and environment-friendly. In conclusion, the invention has the advantages that: the dry dust is reduced, the problem of easy environmental pollution is avoided, the potential explosion hazard is eliminated, the system is simple, the operation is stable, the reliability is high, the separation cost is low, and the method is environment-friendly, is a brand-new economic and efficient fog dry separation method and system in the separation industry at present, is particularly suitable for being used in high gas mines, and is simpler for a lump coal gangue discharge system.
Description of the drawings:
FIG. 1 shows a schematic diagram of a mist dry sorting system.
The specific implementation mode is as follows:
example 1: a fog dry separation method comprises the existing dry separation method taking air as a medium, such as an air jigging separation method, a composite dry separation method and the like, and can also be other dry separation methods constructed by combining air flow on the basis of a vibrating screen or a shaking table (including but not limited to the two devices).
Based on the same principle and method, in the above embodiment, the same purpose and effect can be achieved by replacing the mist medium with dry mist, or wet mist, or supersaturated mist, or mist generated by mixing two or more media, or water foam mist generated by the action of water and a foaming agent, or saturated water vapor for a specific material, and the like (including but not limited to the above).
Example 2: the following detailed description of the mist dry-method sorting system and the process flow of the invention is made with reference to the accompanying drawing 1: the invention relates to a fog dry separation system which mainly comprises a raw material preparation unit, a fog preparation unit, a gas compression unit, a dry separation unit, a circulating purification unit, a product unit and the like. The raw material preparation unit is used for preparing the raw materials into the materials required by the dry separation machine through processes (including but not limited to) such as crushing and screening the raw materials according to the separation target requirements, then sending the separated materials into the dry separation unit, and if the materials are lump material separation, sending the sieved materials into the product unit; the mist preparation unit selects proper mist and mist quantity according to the requirements of a separation target and materials, the type of the mist is as described in embodiment 1, the aim is to be economical and reasonable, the mist quantity is to achieve the aim of removing dry and tiny dust, the mist is sent into the air compression unit according to the requirements of a working flow after being prepared, and the sending point can be arranged in front of a fan or behind the fan; the air compressing unit mixes the circulating purified air and the fog according to the requirement of a separation target and then sends the mixture into the dry separation unit according to the requirement; the sorted materials entering after the dry separation unit starts the equipment are sorted under the combined action of fog airflow and the movement force of the equipment, fog in the fog is combined with dry micro-dust particles in the sorted materials or combined with dry micro-dust particles adhered to the surfaces of the sorted materials in the sorting process, so that the dry micro-dust is humidified, part of wet micro-dust is taken away by the sorted materials, part of the wet micro-dust is taken away by the airflow and is carried into waste gas after being separated from the materials, the sorted concentrate, middling and tailing products are respectively sent to product bins of the product unit, and the sorted waste gas is sent to the circulating purification unit; the circulating purification unit recovers material microparticles in the waste gas and sends the material microparticles into a bin of the product unit according to requirements, and the purified air is sent into the air compression unit for recycling.
Based on the same principle and method, the mist preparation unit and the air compression unit can be compounded into one unit in the embodiment, namely the integrated equipment is used for completing the preparation, and the aim and the effect of the invention can be achieved.
Based on the same principle and method, the dry separator can be changed into a two-product or multi-product separation device in the embodiment, and the aim and the effect of the invention can be achieved.
As described above, the dry dust generated in large quantity in the existing dry separator is radically reduced by adopting the dry mist sorting method and the dry mist sorting system, the problem of treatment of the fine dust in the prior art is solved, the explosion hidden danger of the fine dust is eliminated, the dry mist sorting method and the dry mist sorting system which are simple in system, stable in operation, high in reliability, low in sorting cost and environment-friendly are realized, the dry mist sorting method and the dry mist sorting system which are brand new in the sorting industry at present are particularly suitable for being used in high-gas mines, and the dry gangue discharge system of lump coal is simpler.
The invention discloses a mist dry sorting method and a system, which, although a few examples are illustrated, make certain modifications, improvements, substitutions and the like, or any combination of the above embodiments, within the scope of protection of the invention for a person of ordinary skill in the art.
Claims (8)
1. A fog dry separation method comprises the existing dry separation method taking air as a medium, and is characterized in that: the dry separation is realized by replacing air medium with mist medium, and dry dust generated in the existing dry separator in large quantity is reduced.
2. The dry mist sorting process according to claim 1, characterized in that the mist medium is dry mist.
3. The dry mist sorting process of claim 1, wherein the mist medium is wet mist.
4. The dry mist sorting method according to claim 1, wherein the mist medium is supersaturated water mist.
5. The dry mist sorting method according to claim 1, wherein the mist medium is a mist generated by mixing two or more media.
6. The dry mist sorting method according to claim 1, wherein the mist medium is water foam mist generated by the action of water and a foaming agent.
7. The dry mist sorting system for achieving any one of the claims 1 to 6 mainly comprises a raw material preparation unit, a mist preparation unit, an air compressing unit, a dry sorting unit, a circulating purification unit, a product unit and the like, and is characterized in that the raw material preparation unit sends prepared sorted materials into the dry sorting unit, the mist preparation unit sends prepared mist into the air compressing unit, the air compressing unit sends mixed mist into the dry sorting unit, products sorted by the dry sorting unit enter the product unit, waste gas generated by the dry sorting unit enters the circulating purification unit, air purified by the circulating purification unit enters the air compressing unit, and microparticles separated by the circulating purification unit enter the product unit.
8. The dry mist sorting system of claim 7, wherein: the mist preparation unit and the air compression unit are compounded into a unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210489047.3A CN114850032A (en) | 2022-05-07 | 2022-05-07 | Fog dry separation method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210489047.3A CN114850032A (en) | 2022-05-07 | 2022-05-07 | Fog dry separation method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114850032A true CN114850032A (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210489047.3A Pending CN114850032A (en) | 2022-05-07 | 2022-05-07 | Fog dry separation method and system |
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| CN (1) | CN114850032A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006102672A (en) * | 2004-10-06 | 2006-04-20 | Sumitomo Metal Mining Co Ltd | Production method of atomized powder for flame spraying |
| CN1773634A (en) * | 2004-11-08 | 2006-05-17 | Tdk株式会社 | Method for producing electromagnetic wave absorbing sheet, method for classifying powder |
| CN204486440U (en) * | 2015-01-05 | 2015-07-22 | 上海应用技术学院 | For the control gathering-device of polishing, polishing, wire drawing platform magnalium dust |
| CN205461535U (en) * | 2016-02-03 | 2016-08-17 | 金易通科技(北京)股份有限公司 | Foam type cloud and mist dust suppression device |
| CN208106477U (en) * | 2018-04-04 | 2018-11-16 | 合肥工业大学 | A kind of dust guard of coal underground separation system |
| CN208845216U (en) * | 2018-09-12 | 2019-05-10 | 江西安源通风设备有限公司 | It is a kind of can spray drying mist and wet fog dedusting fan |
| CN109877042A (en) * | 2019-03-19 | 2019-06-14 | 苏州双恩智能科技有限公司 | A kind of titanium alloy fine-powder gas sifter |
| CN213314172U (en) * | 2020-07-08 | 2021-06-01 | 中冶长天国际工程有限责任公司 | High dust of security gets rid of system |
| CN112934373A (en) * | 2021-03-19 | 2021-06-11 | 深圳市好立得商贸有限公司 | Machine is retrieved to smokeless environment-friendly lithium cell |
| CN113457329A (en) * | 2021-08-11 | 2021-10-01 | 山东九昌重工科技有限公司 | Dry fog dust suppression device for preventing water fog dissipation |
| CN215232522U (en) * | 2020-11-20 | 2021-12-21 | 佛山(华南)新材料研究院 | Screening device |
-
2022
- 2022-05-07 CN CN202210489047.3A patent/CN114850032A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006102672A (en) * | 2004-10-06 | 2006-04-20 | Sumitomo Metal Mining Co Ltd | Production method of atomized powder for flame spraying |
| CN1773634A (en) * | 2004-11-08 | 2006-05-17 | Tdk株式会社 | Method for producing electromagnetic wave absorbing sheet, method for classifying powder |
| CN204486440U (en) * | 2015-01-05 | 2015-07-22 | 上海应用技术学院 | For the control gathering-device of polishing, polishing, wire drawing platform magnalium dust |
| CN205461535U (en) * | 2016-02-03 | 2016-08-17 | 金易通科技(北京)股份有限公司 | Foam type cloud and mist dust suppression device |
| CN208106477U (en) * | 2018-04-04 | 2018-11-16 | 合肥工业大学 | A kind of dust guard of coal underground separation system |
| CN208845216U (en) * | 2018-09-12 | 2019-05-10 | 江西安源通风设备有限公司 | It is a kind of can spray drying mist and wet fog dedusting fan |
| CN109877042A (en) * | 2019-03-19 | 2019-06-14 | 苏州双恩智能科技有限公司 | A kind of titanium alloy fine-powder gas sifter |
| CN213314172U (en) * | 2020-07-08 | 2021-06-01 | 中冶长天国际工程有限责任公司 | High dust of security gets rid of system |
| CN215232522U (en) * | 2020-11-20 | 2021-12-21 | 佛山(华南)新材料研究院 | Screening device |
| CN112934373A (en) * | 2021-03-19 | 2021-06-11 | 深圳市好立得商贸有限公司 | Machine is retrieved to smokeless environment-friendly lithium cell |
| CN113457329A (en) * | 2021-08-11 | 2021-10-01 | 山东九昌重工科技有限公司 | Dry fog dust suppression device for preventing water fog dissipation |
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