CN112439561A - Controllable liquid phase classification equipment of underflow - Google Patents
Controllable liquid phase classification equipment of underflow Download PDFInfo
- Publication number
- CN112439561A CN112439561A CN202011398105.9A CN202011398105A CN112439561A CN 112439561 A CN112439561 A CN 112439561A CN 202011398105 A CN202011398105 A CN 202011398105A CN 112439561 A CN112439561 A CN 112439561A
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- underflow
- cavity
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- cyclone
- overflow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/12—Construction of the overflow ducting, e.g. diffusing or spiral exits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
- B04C5/181—Bulkheads or central bodies in the discharge opening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/24—Multiple arrangement thereof
- B04C5/28—Multiple arrangement thereof for parallel flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
- B04C2009/002—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with external filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
- B04C2009/005—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with external rotors, e.g. impeller, ventilator, fan, blower, pump
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Abstract
The invention discloses a liquid phase grading device with controllable bottom flow, which relates to the technical field of liquid phase grading and has the technical scheme that the device comprises a cyclone group and a bottom flow control unit; the cyclone group comprises a shell and at least a miniature cyclone, an inner cavity is formed on the inner side of the shell, an overflow cavity, a feeding cavity, a middle flow cavity and a bottom flow cavity are arranged in the inner cavity, and a bottom flow discharge hole communicated with the bottom flow cavity is formed in the bottom of the shell; the upper end of the micro cyclone is provided with a micro overflow port communicated with the overflow cavity and a micro feed inlet communicated with the feed cavity, the middle part of the micro cyclone is communicated with the middle flow cavity, and the lower end of the micro cyclone is provided with a micro underflow port communicated with the underflow cavity; the underflow control unit comprises at least one control valve and is connected with an underflow discharge hole of the cyclone group. The invention has the effects of improving the production efficiency and saving the production cost of equipment, manpower and the like.
Description
Technical Field
The invention relates to the technical field of liquid phase classification, in particular to liquid phase classification equipment with controllable underflow.
Background
Classification is one of the conventional means for obtaining high-quality powder materials with different specifications in the field of material manufacturing, and the common classification methods include liquid phase classification and gas phase classification, or wet classification and dry classification. The most widely used medium in liquid phase classification includes absolute ethanol and water, which has the advantages of obtaining a product with a fine particle size, and controlling the particle size distribution range within a narrow range, so that the method is more suitable for the classification of ultrafine powder materials. The ultrafine powder generally refers to powder with a particle size of not more than 10 μm, wherein powder with a particle size of 0.1-1 μm is called submicron powder, and powder with a particle size of 1-100 nm is called nano powder. The ultrafine powder is classified according to the type of material, and includes various types such as metal, nonmetal, organic, inorganic, and biological. Since different kinds of ultrafine powders have different characteristics, technicians often use different classification force fields to effectively classify the ultrafine powders, such as gravity field classification, centrifugal force field classification, inertial force field classification, electric field force classification, magnetic field force classification, thermal gradient force field classification, and chromatography classification, so as to obtain ultrafine powder materials with different particle size distributions relatively efficiently.
In the prior art, one of the options of separating materials by using a centrifugal force field and gravity settling commonly used in the field is to adopt a hydrocyclone, when the hydrocyclone is used for grading ultrafine metal powder, an overflow product with fine granularity and low density, namely fine powder, is obtained from an overflow pipe at the upper part of the hydrocyclone under an ideal condition, and an underflow product with coarse granularity and high density, namely coarse powder, is obtained from an underflow pipe (or a sand settling pipe) at the lower part of the hydrocyclone; in the actual industrial production, however, a great amount of fine powder is inevitably carried in the underflow product, and if the fine powder is not solved, a great amount of waste is caused; and because each structural parameter of the swirler is a fixed value after the manufacture is finished, the classification capability and the classification performance of the swirler cannot be adjusted in real time by adjusting the structure and configuration parameters of the swirler, so that the problem of low recovery efficiency of single-stage classification fine powder is caused.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a liquid phase classification device with controllable underflow, which has the effects of remarkably reducing the production cost and improving the production efficiency.
In order to achieve the purpose, the invention provides the following technical scheme:
a liquid phase classification device with controllable underflow comprises a cyclone group and an underflow control unit;
the cyclone group comprises a shell and at least two micro cyclones vertically arranged in the shell, a sealed inner cavity is formed on the inner side of the shell, an overflow cavity, a feeding cavity, a middle flow cavity and a bottom flow cavity which are sequentially arranged from top to bottom are arranged in the inner cavity, and a bottom flow discharge hole communicated with the bottom flow cavity is formed in the bottom of the shell; the upper end of the micro cyclone is provided with a micro overflow port communicated with the overflow cavity and a micro feed inlet communicated with the feed cavity, the middle part of the micro cyclone is communicated with the middle flow cavity, and the lower end of the micro cyclone is provided with a micro underflow port communicated with the underflow cavity;
the underflow control unit comprises at least one control valve and is connected with an underflow discharge hole of the cyclone group.
By adopting the technical scheme, when the superfine powder is subjected to liquid-phase classification, the parallel use of the plurality of micro cyclones effectively controls the underflow flow to obviously improve the yield of the fine powder in overflow on the premise of reducing the classification times, so that the production efficiency is directly improved, the production cost of equipment, manpower and the like is saved, the superfine powder can be used in different medium environments such as water, organic solvents and the like, and the market prospect is wide.
The invention is further configured to: the top end of the shell is provided with an upper cover plate, and the lower side of the upper cover plate is provided with an overflow baffle plate, a feeding baffle plate and an underflow baffle plate which are sequentially arranged from top to bottom; the overflow cavity is formed between the upper cover plate and the overflow partition plate, and the feeding cavity is formed between the overflow partition plate and the feeding partition plate; the underflow chamber is formed between the underflow partition and the feed partition, and the underflow chamber is formed between the underflow partition and the bottom of the housing.
By adopting the technical scheme, stable overflow cavity, feeding cavity, middle flow cavity and underflow cavity structures are formed in the shell, and the effects of improving the production efficiency and saving the production cost of equipment, manpower and the like are achieved.
The invention is further configured to: the upper cover plate is provided with the overflow discharge gate, the side of casing is provided with raw materials feed inlet and well discharge gate, the raw materials feed inlet with feeding chamber intercommunication, well flow discharge gate with well flow chamber intercommunication.
Through adopting above-mentioned technical scheme, form stable flow chamber in the casing, and then when showing reduction in production cost, realize improving production efficiency's effect.
The invention is further configured to: the miniature swirler comprises a swirler upper section and a swirler lower section which are connected with each other, a miniature overflow port is positioned at the top end of the swirler upper section, the miniature feed inlet is positioned on the side surface of the swirler upper section, the joint of the swirler upper section and the swirler lower section is communicated with the intermediate flow cavity, and the miniature underflow port is positioned at the bottom of the swirler lower section.
By adopting the technical scheme, the micro cyclone and the inner cavity in the shell form a stable matching structure, and the effects of improving the production efficiency, saving equipment, manpower and other production costs are achieved.
The invention is further configured to: the underflow control unit further comprises a buffer tank, and two ends of the buffer tank are respectively connected with the underflow discharge hole and the control valve.
Through adopting above-mentioned technical scheme, the buffer tank plays the effect of steady pressure.
The invention is further configured to: a pressure gauge is arranged between the control valve and the buffer tank, and the outlet end of the control valve is connected with a peristaltic pump.
By adopting the technical scheme, the pressure gauge is used for monitoring the pressure of the underflow pipe so as to achieve the purpose of preventing the equipment from being damaged by overhigh system pressure; the peristaltic pump plays a role in effectively preventing the ultrafine powder from being deposited and blocked in the peristaltic pump body.
The invention is further configured to: still including the emulsifying kettle, shale shaker and the stirred tank that connect gradually, stirred tank's bottom discharge gate with raw materials feed inlet intercommunication, well flow discharge gate and the peristaltic pump all with stirred tank's top feed inlet intercommunication.
By adopting the technical scheme, the emulsifying kettle, the vibrating screen and the stirring kettle are used for the classification pretreatment of raw materials, so that the liquid phase classification equipment with controllable underflow forms a stable circulating working system, and the effects of obviously reducing the production cost and improving the production efficiency are achieved.
The invention is further configured to: the miniature feed inlet is involute or tangent.
Through adopting above-mentioned technical scheme, play the effect of effectively reducing raw materials feeding resistance, promote raw materials input speed and hierarchical precision.
The invention is further configured to: the miniature cyclones are provided in even number.
Through adopting above-mentioned technical scheme, effectively promote miniature swirler's work efficiency and effect.
The invention is further configured to: the distance between two adjacent micro cyclones is larger than the diameter of each micro cyclone.
Through adopting above-mentioned technical scheme, effectively promote miniature swirler's work efficiency and effect.
In conclusion, the invention has the following beneficial effects: the parallel use of a plurality of micro cyclones and the control of the underflow flow rate realize the improvement of the yield of fine powder in overflow on the premise of reducing the grading times, obviously improve the production efficiency, save the production cost of equipment, manpower and the like, can be used in different medium environments such as water, organic solvent and the like, and has wide application prospect.
Drawings
FIG. 1 is a schematic view of the flow structure of the present embodiment;
fig. 2 is a schematic structural view of the swirler assembly of the present embodiment.
Description of reference numerals: 1. a cyclone group; 11. an upper cover plate; 12. a housing; 121. a raw material inlet; 122. a medium flow discharge port; 123. a bottom flow discharge hole; 13. an overflow baffle; 14. a feed spacer; 15. an underflow partition plate; 16. a micro swirler; 161. the upper section of the cyclone; 162. the lower section of the swirler; 163. a micro overflow port; 164. a micro feed inlet; 165. a micro underflow port; 2. a bottom flow control unit; 21. a control valve; 22. a buffer tank; 23. a peristaltic pump; 24. a pressure gauge; 3. an emulsifying kettle; 4. vibrating screen; 5. and (5) stirring the mixture in a kettle.
Detailed Description
In order to make the technical solution and advantages of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the liquid phase classification device with controllable underflow comprises a cyclone group 1 and an underflow control unit 2. The cyclone group 1 comprises a housing 12 and at least two mini-cyclones 16 arranged vertically in the housing 12. A sealed inner cavity is formed on the inner side of the shell 12, and an overflow cavity, a feeding cavity, a middle flow cavity and a bottom flow cavity are arranged in the inner cavity from top to bottom in sequence. It should be noted that the top end of the shell 12 is provided with an upper cover plate 11, and an overflow baffle plate 13, a feed baffle plate 14 and an underflow baffle plate 15 are arranged on the lower side of the upper cover plate 11 in sequence from top to bottom. Thus, an overflow chamber is formed between the upper cover plate 11 and the overflow barrier 13, and a feed chamber is formed between the overflow barrier 13 and the feed barrier 14; the underflow chamber is formed between the underflow partition plate 15 and the feed partition plate 14, and the underflow chamber is formed between the underflow partition plate 15 and the bottom of the shell 12, so that stable overflow chamber, feed chamber, underflow chamber and underflow chamber structures are formed in the shell 12, and the effects of improving the production efficiency and saving the production cost of equipment, manpower and the like are achieved. At the same time, an underflow outlet 123 is provided in the bottom of the housing 12 in communication with the underflow chamber. The upper end of the mini cyclone 16 is provided with a mini overflow 163 communicating with the overflow chamber and a mini feed 164 communicating with the feed chamber. The middle part of the micro cyclone 16 is communicated with the middle flow cavity, and the lower end of the micro cyclone 16 is provided with a micro underflow port 165 communicated with the underflow cavity. Therein, the mini cyclone 16 comprises an upper cyclone section 161 and a lower cyclone section 162 connected to each other. The micro overflow port 163 is located at the top end of the cyclone upper section 161, the micro feed port 164 is located at the side surface of the cyclone upper section 161, the junction of the cyclone upper section 161 and the cyclone lower section 162 is communicated with the middle flow cavity, and the micro underflow port 165 is located at the bottom of the cyclone lower section 162, so that the micro cyclone 16 and the inner cavity in the casing 12 form a stable matching structure, and the effects of improving the production efficiency, saving the production cost of equipment, manpower and the like are achieved. Correspondingly, the underflow control unit 2 comprises at least one control valve 21 and is connected to the underflow outlet 123 of the cyclone block 1. Therefore, when the liquid-phase classification equipment with controllable underflow is used for liquid-phase classification of ultrafine powder, the flow of the underflow is effectively controlled by using the plurality of micro cyclones 16 in parallel, so that the yield of fine powder in overflow is obviously improved on the premise of reducing classification times, the production efficiency is directly improved, the production cost of equipment, manpower and the like is saved, the equipment can be used in different medium environments such as water, organic solvents and the like, and the market prospect is wide.
It should be noted that the upper cover plate 11 is provided with an overflow discharge hole. The side of the housing 12 is provided with a raw material feed opening 121 and a middle effluent opening 122. Raw materials feed inlet 121 and feeding chamber intercommunication, well flow discharge gate 122 and well flow chamber intercommunication to form stable mobile cavity in casing 12, and then when showing reduction in production cost, realize improving production efficiency's effect. Meanwhile, a buffer tank 22, a pressure gauge 24 and a peristaltic pump 23 are also provided in the underflow control unit 2. Wherein, two ends of the buffer tank 22 are respectively connected with the underflow discharge port 123 and the control valve 21 to play a role in stabilizing pressure; the pressure gauge 24 is arranged between the control valve 21 and the buffer tank 22 and used for monitoring the pressure of the underflow pipe so as to achieve the purpose of preventing the equipment from being damaged due to overhigh system pressure; the peristaltic pump 23 is connected with the outlet end of the control valve 21 and plays a role in effectively preventing the ultrafine powder from being deposited and blocked in the pump body of the peristaltic pump 23.
As shown in fig. 1 and fig. 2, the liquid phase classification apparatus with controllable underflow further comprises an emulsifying kettle 3, a vibrating screen 4 and a stirring kettle 5 which are connected in sequence. The bottom discharge port of the stirring kettle 5 is communicated with the raw material feed port 121, and the middle flow discharge port 122 and the peristaltic pump 23 are both communicated with the top feed port of the stirring kettle 5. Therefore, the emulsifying kettle 3, the vibrating screen 4 and the stirring kettle 5 are used for the classification pretreatment of the raw materials, so that the liquid phase classification equipment with controllable underflow forms a stable circulating working system, and the effects of obviously reducing the production cost and improving the production efficiency are achieved. In order to further improve the grading effect of the liquid-phase grading equipment with controllable underflow on the powder, the micro feed inlet 164 is in an involute shape or a tangent shape, so that the effect of effectively reducing the resistance of raw material feeding is achieved, and the raw material feeding speed and the grading precision are improved. The number of the micro cyclones 16 is even, and the distance between two adjacent micro cyclones 16 is larger than the diameter of each micro cyclone 16, so that the working efficiency and the effect of the micro cyclones 16 are effectively improved.
In conclusion, the present application realizes the improvement of the yield of fine powder in overflow on the premise of reducing the classification times by the parallel use of the plurality of micro cyclones 16 and the control of the underflow flow, remarkably improves the production efficiency, saves the production cost of equipment, manpower, etc., can be used in different medium environments such as water and organic solvents, etc., and has a wide application prospect.
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 embodiment, but all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the present invention may occur to those skilled in the art without departing from the principle of the present invention, and such modifications and embellishments should also be considered as within the scope of the present invention.
Claims (10)
1. A controllable underflow liquid phase classification apparatus is characterized in that: comprises a cyclone group (1) and an underflow control unit (2);
the cyclone group (1) comprises a shell (12) and at least two micro cyclones (16) vertically arranged in the shell (12), wherein a sealed inner cavity is formed on the inner side of the shell (12), an overflow cavity, a feeding cavity, a middle flow cavity and a bottom flow cavity are sequentially arranged in the inner cavity from top to bottom, and a bottom flow discharge hole (123) communicated with the bottom flow cavity is formed in the bottom of the shell (12); the upper end of the micro cyclone (16) is provided with a micro overflow port (163) communicated with the overflow cavity and a micro feed port (164) communicated with the feed cavity, the middle part of the micro cyclone (16) is communicated with the middle flow cavity, and the lower end of the micro cyclone (16) is provided with a micro underflow port (165) communicated with the underflow cavity;
the underflow control unit (2) comprises at least one control valve (21) and is connected with an underflow discharge opening (123) of the cyclone group (1).
2. A liquid phase classification apparatus with controlled underflow according to claim 1 wherein: an upper cover plate (11) is arranged at the top end of the shell (12), and an overflow baffle plate (13), a feeding baffle plate (14) and an underflow baffle plate (15) which are sequentially arranged from top to bottom are arranged on the lower side of the upper cover plate (11); the overflow cavity is formed between the upper cover plate (11) and the overflow partition plate (13), and the feeding cavity is formed between the overflow partition plate (13) and the feeding partition plate (14); the underflow chamber is formed between the underflow partition wall (15) and the feed partition wall (14), and the underflow chamber is formed between the underflow partition wall (15) and the bottom of the housing (12).
3. A liquid phase classification apparatus with controlled underflow according to claim 2 characterised in that: upper cover plate (11) are provided with the overflow discharge gate, the side of casing (12) is provided with raw materials feed inlet (121) and well discharge gate (122), raw materials feed inlet (121) with feeding chamber intercommunication, well discharge gate (122) with well flow chamber intercommunication.
4. A liquid phase classification apparatus with controlled underflow according to claim 3 wherein: the micro cyclone (16) comprises an upper cyclone section (161) and a lower cyclone section (162) which are connected with each other, a micro overflow port (163) is positioned at the top end of the upper cyclone section (161), a micro feed port (164) is positioned on the side surface of the upper cyclone section (161), the connection part of the upper cyclone section (161) and the lower cyclone section (162) is communicated with the intermediate flow cavity, and a micro underflow port (165) is positioned at the bottom of the lower cyclone section (162).
5. A liquid phase classification apparatus with controlled underflow according to claim 3 wherein: the underflow control unit (2) further comprises a buffer tank (22), and two ends of the buffer tank (22) are respectively connected with the underflow discharge hole (123) and the control valve (21).
6. A liquid phase classification apparatus with controlled underflow according to claim 5 wherein: a pressure gauge (24) is arranged between the control valve (21) and the buffer tank (22), and the outlet end of the control valve (21) is connected with a peristaltic pump (23).
7. A controlled underflow liquid phase classification apparatus as claimed in claim 6 wherein: still including emulsifying kettle (3), shale shaker (4) and stirred tank (5) that connect gradually, the bottom discharge gate of stirred tank (5) with raw materials feed inlet (121) intercommunication, well class discharge gate (122) and peristaltic pump (23) all with the top feed inlet intercommunication of stirred tank (5).
8. A liquid phase classification apparatus with controlled underflow according to claim 1 wherein: the miniature feed inlet is involute or tangent.
9. A liquid phase classification apparatus with controlled underflow according to claim 1 wherein: an even number of mini-cyclones (16) are provided.
10. A liquid phase classification apparatus with controlled underflow according to claim 1 wherein: the distance between two adjacent micro cyclones (16) is larger than the diameter of each micro cyclone (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011398105.9A CN112439561A (en) | 2020-12-03 | 2020-12-03 | Controllable liquid phase classification equipment of underflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011398105.9A CN112439561A (en) | 2020-12-03 | 2020-12-03 | Controllable liquid phase classification equipment of underflow |
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| Publication Number | Publication Date |
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| CN112439561A true CN112439561A (en) | 2021-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011398105.9A Pending CN112439561A (en) | 2020-12-03 | 2020-12-03 | Controllable liquid phase classification equipment of underflow |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6206202B1 (en) * | 1996-03-04 | 2001-03-27 | Hosokawa Mikropul Gesellschaft Fur Mahl-Und Staubtechnik Mbh | Cyclone separator |
| CN203944481U (en) * | 2014-05-12 | 2014-11-19 | 江南大学 | The micro-a cluster cyclone locking device of a kind of multitube |
| CN206199509U (en) * | 2016-09-20 | 2017-05-31 | 山东科技大学 | A kind of product cyclone of scalping four |
| CN206325720U (en) * | 2016-11-10 | 2017-07-14 | 北京金诚信矿山技术研究院有限公司 | A kind of tailings cyclone classification experimental system |
| CN210279519U (en) * | 2019-06-19 | 2020-04-10 | 新泰市佳禾生物科技有限公司 | Cyclone separator convenient to dismouting |
-
2020
- 2020-12-03 CN CN202011398105.9A patent/CN112439561A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6206202B1 (en) * | 1996-03-04 | 2001-03-27 | Hosokawa Mikropul Gesellschaft Fur Mahl-Und Staubtechnik Mbh | Cyclone separator |
| CN203944481U (en) * | 2014-05-12 | 2014-11-19 | 江南大学 | The micro-a cluster cyclone locking device of a kind of multitube |
| CN206199509U (en) * | 2016-09-20 | 2017-05-31 | 山东科技大学 | A kind of product cyclone of scalping four |
| CN206325720U (en) * | 2016-11-10 | 2017-07-14 | 北京金诚信矿山技术研究院有限公司 | A kind of tailings cyclone classification experimental system |
| CN210279519U (en) * | 2019-06-19 | 2020-04-10 | 新泰市佳禾生物科技有限公司 | Cyclone separator convenient to dismouting |
Non-Patent Citations (2)
| Title |
|---|
| 《化学工程手册》编辑委员会: "《化学工程手册 第22篇 液固分离》", 31 October 1989, 化学工业出版社 * |
| 孙铁田: "《柳州选矿设备学术报告会论文集》", 31 October 1983 * |
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Application publication date: 20210305 |