CN107824342B - Supergravity grading process system - Google Patents
Supergravity grading process system Download PDFInfo
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- CN107824342B CN107824342B CN201711260190.0A CN201711260190A CN107824342B CN 107824342 B CN107824342 B CN 107824342B CN 201711260190 A CN201711260190 A CN 201711260190A CN 107824342 B CN107824342 B CN 107824342B
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000008569 process Effects 0.000 title claims abstract description 42
- 239000002002 slurry Substances 0.000 claims abstract description 115
- 238000011010 flushing procedure Methods 0.000 claims abstract description 52
- 239000002893 slag Substances 0.000 claims abstract description 52
- 238000007599 discharging Methods 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 238000005086 pumping Methods 0.000 claims description 6
- 238000005194 fractionation Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 20
- 238000004891 communication Methods 0.000 abstract description 7
- 238000003756 stirring Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 6
- XTOOSYPCCZOKMC-UHFFFAOYSA-L [OH-].[OH-].[Co].[Ni++] Chemical compound [OH-].[OH-].[Co].[Ni++] XTOOSYPCCZOKMC-UHFFFAOYSA-L 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 229910052602 gypsum Inorganic materials 0.000 description 4
- 239000010440 gypsum Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 239000011362 coarse particle Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- HNKUEPPOYVAOFH-UHFFFAOYSA-N [Mg].[Zn].[Cu].[Ni].[Co] Chemical compound [Mg].[Zn].[Cu].[Ni].[Co] HNKUEPPOYVAOFH-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- -1 cobalt nickel hydroxide zinc copper Chemical compound 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/04—Periodical feeding or discharging; Control arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/04—Periodical feeding or discharging; Control arrangements therefor
- B04B11/05—Base discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B13/00—Control arrangements specially designed for centrifuges; Programme control of centrifuges
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a supergravity grading process system, which comprises: the supergravity grading device is provided with a feeding and discharging pipeline and a slurry outlet; the slurry supply device is connected with the material inlet and outlet pipeline; the slag flushing device is connected with the feeding and discharging pipeline; an overflow tank communicated with the slurry outlet for collecting slurry overflowed from the supergravity separation device; the control part comprises an integrated PLC system for controlling the automatic production of the supergravity grading process system; the valve body assembly is provided with a first interface, a second interface and a third interface, the first interface is connected with a water source, the second interface is communicated with the material inlet and outlet pipeline, and the third interface is communicated with the slurry supply device; the control part respectively controls the first interface and the third interface to be connected or disconnected with the second interface. According to the supergravity grading process system, the communication state of the valve body assembly can be controlled through the control piece, feeding, separating and slag flushing are realized through the supergravity grading device, and the supergravity grading process system is convenient to operate and high in automation degree.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to a supergravity grading process system.
Background
In the related art, waste water treatment in the nonferrous industry and waste residues and intermediate mixed materials generated in the intermediate metallurgical process, such as cobalt nickel hydroxide zinc copper and calcium sulfate, are gradually defined as dangerous waste, and disposal cost is a great burden to enterprises.
The mixture (such as the mixture of cobalt nickel hydroxide and calcium sulfate) is separated, and valuable metals are enriched after separation by means of hydraulic classification and screening. However, the above separation method is inefficient, has poor effect and cannot meet the classification requirement of a large amount of waste residue or intermediate materials.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a supergravity grading process system which is easy to separate materials and easy to operate.
According to an embodiment of the invention, a supergravity classification process system comprises: the super-gravity classification device is provided with a feeding and discharging pipeline and a slurry outlet; the slurry supply device is connected with the material inlet and outlet pipeline; the slag flushing device is connected with the feeding and discharging pipeline; an overflow trough communicated with the slurry outlet for collecting slurry overflowed from the supergravity separation device; a control comprising an integrated PLC system to control automated production of the supergravity fractionation process system; the valve body assembly is provided with a first interface, a second interface and a third interface, the first interface is connected with a water source, the second interface is communicated with the material inlet and outlet pipeline, and the third interface is communicated with the slurry supply device; wherein the control piece respectively controls the first interface and the third interface to be connected with or disconnected from the second interface.
According to the supergravity grading process system provided by the embodiment of the invention, the communication state of the valve body assembly can be controlled through the control piece, and the feeding, separation and slag flushing are realized through the supergravity grading device, so that the operation is convenient and the automation degree is high.
In addition, the supergravity grading process system according to the embodiment of the invention has the following additional technical characteristics:
according to some embodiments of the invention, the slurry supply apparatus comprises: the slurry tank is connected with the feeding and discharging pipeline; and the feed pump is connected with the slurry tank and used for pumping slurry into the supergravity grading device.
According to some embodiments of the invention, the slag flushing device comprises: the slag flushing groove is connected with the feeding and discharging pipeline; the self-sucking pump is connected with the slag flushing groove and used for pumping slag flushing into the slag flushing groove by the supergravity grading device.
According to some embodiments of the invention, the control is imported into DCS or mobile phone APP for monitoring or controlling by authority.
According to some embodiments of the invention, the supergravity classification device comprises: a fixed bracket; the cylinder body is arranged on the fixed support, and the slurry outlet is formed on the cylinder body; the rotary drum is arranged in the cylinder, and the lower end of the material inlet and outlet pipeline is suitable for extending into the rotary drum; the rotary drum motor is arranged at the outer bottom of the cylinder body and connected with the rotary drum for driving the rotary drum to rotate; the lifting device is arranged at the outer top of the cylinder body and connected with the feeding and discharging pipeline, and is connected with a lifting motor to drive the feeding and discharging pipeline to ascend and descend; the first flexible pipe section is arranged between the feeding and discharging pipeline and the second connector, and the second flexible pipe section is arranged between the feeding and discharging pipeline and the slag flushing groove.
Further, a first switch valve is arranged at the first interface, a second switch valve is arranged between the material inlet and outlet pipeline and the first flexible pipe section, a third switch valve is arranged between the third interface and the slurry tank, and a fourth switch valve is arranged between the second flexible pipe section and the slag flushing tank; when the second interface is communicated with the third interface and the second switch valve and the third switch valve are both opened, the first switch valve and the fourth switch valve are both closed; when the first interface is communicated with the second interface and the first switch valve and the second switch valve are both opened, the third switch valve and the fourth switch valve are both closed; when the fourth switch valve is opened, the second switch valve, the third switch valve and the fourth switch valve are all closed.
Further, a fifth switch valve is arranged between the feeding pump and the slurry tank.
Optionally, the drum motor is in transmission connection with the drum; or a shaft part which extends downwards and is opposite to the output shaft of the drum motor is formed on the drum, and the drum is connected with the drum motor through a coupler.
According to some embodiments of the invention, the feed and discharge conduit comprises: a main pipe extending in the up-down direction; the branch pipeline is arranged at the lower end of the main pipeline and is communicated with the main pipeline, and the branch pipeline comprises one or a plurality of branch pipelines which are arranged at intervals along the circumferential direction.
Specifically, the bottom of the cylinder body is in a cone shape which is contracted inwards from top to bottom, and the slurry outlet is formed on the bottom wall of the cylinder body.
Further, the inner bottom surface of the cylinder body is formed with a baffle ring extending upward and spaced apart from the outer bottom wall of the drum, the baffle ring is staggered in the up-down direction from the slurry outlet, and the slurry outlet is positioned outside the baffle ring.
Specifically, the rotary drum motor is a variable frequency motor.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a supergravity fractionation process system according to an embodiment of the present invention;
fig. 2 is a schematic view of a supergravity classification device in a supergravity classification process system according to an embodiment of the present invention.
Reference numerals:
the supergravity classification process system 200, the supergravity classification device 100, the cylinder 1, the slurry outlet 11, the baffle ring 12, the rotary drum 2, the rotary drum motor 3, the material inlet and outlet pipeline 4, the main pipeline 41, the branch pipeline 42, the lifting device 5, the lifting motor 6, the fixed support 7, the slurry supply device 210, the slurry tank 211, the feeding pump 212, the slag flushing device 220, the slag flushing tank 221, the self-priming pump 222, the overflow tank 230, the valve body assembly 240, the first interface 241, the second interface 242, the third interface 243, the first switch valve 250, the second switch valve 260, the third switch valve 270, the fourth switch valve 280, the fifth switch valve 290, the first flexible pipe section 201 and the second flexible pipe section 202.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention discloses a supergravity grading process system, which mainly relates to separation of valuable substances of nonferrous smelting waste water slag and process slag and grading of nonferrous smelting intermediate materials.
A supergravity fractionation process system 200 according to an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1-2, a supergravity classification process system 200 according to an embodiment of the present invention includes: supergravity classifier 100, slurry feeder 210, slag flushing device 220, overflow trough 230, controls (not shown) and valve body assembly 240.
Specifically, the supergravity classification device 100 has a feed/discharge pipe 4 and a slurry outlet 11. The slurry supply device 210 is connected to the feed/discharge line 4. The slurry is conveniently injected into the super-gravity classification device 100 through the feeding and discharging pipeline 4, so that the slurry can enter the super-gravity classification device 100 from the slurry supply device 210 through the feeding and discharging pipeline 4, is separated by the super-gravity classification device 100 and is discharged through the slurry outlet 11.
The slag flushing device 220 is connected with the feeding and discharging pipeline 4. Flushing water can be injected into the super-gravity classifying device 100 through the feeding and discharging pipeline 4, the flushing water can flush separated slag in the super-gravity classifying device 100, and the separated slag flushing the super-gravity classifying device 100 can be further pumped to the slag flushing device 220 through the feeding and discharging pipeline 4.
The overflow launder 230 communicates with the slurry outlet 11 for collecting slurry overflowed from the hypergravity separation device 100. That is, the slurry is continuously injected during the separation of the supergravity separator 100 for a certain period of time, and the slurry separated in the supergravity separator 100 overflows, so that the overflow tank 230 communicates with the slurry outlet 11, and the slurry overflowed from the supergravity separator 100 (for example, particles having a relatively low specific gravity) can be collected.
The controls include an integrated PLC system to control automated production of the supergravity classification process system 200. By providing the control element in the supergravity grading process system 200, the automation and the intelligent degree of the supergravity grading process system 200 are improved, and the control is easy.
The valve body assembly 240 has a first port 241, a second port 242, and a third port 243, the first port 241 is connected to a water source, the second port 242 is in communication with the inlet and outlet conduit 4, and the third port 243 is in communication with the slurry supply 210.
Wherein the control part controls the first interface 241 and the third interface 243 to be connected with or disconnected from the second interface 242 respectively. That is, one of the first interface 241 and the third interface 243 may be controlled to communicate with the second interface 242 by the control member; the first, second and third interfaces 241, 242 and 243 may also be controlled to be closed by a control.
When the control member controls the third interface 243 to be communicated with the second interface 242, the slurry in the slurry feeding device 210 can enter the super-gravity classification device 100 through the feeding and discharging pipeline 4, and is separated by the super-gravity classification device 100 and then discharged through the slurry outlet 11.
When the control member controls the first interface 241 and the second interface 242 to be communicated, flushing water is conveniently injected into the supergravity grading device 100 through the feeding and discharging pipeline 4, the flushing water can flush separated slag (for example, granular slurry with larger specific gravity) in the supergravity grading device 100, and the separated slag flushed out of the supergravity grading device 100 is conveniently pumped to the slag flushing device 220 through the feeding and discharging pipeline 4.
According to the supergravity grading process system 200 provided by the embodiment of the invention, the communication state of the valve body assembly 240 can be controlled through the control piece, and the feeding, separation and slag flushing are realized through the supergravity grading device 100, so that the operation is convenient and the automation degree is high.
Optionally, the treated material is a mixture of hydroxide and gypsum, nickel cobalt copper zinc magnesium, mixed slag in the process of wastewater neutralization and precipitation treatment or intermediate mixed slag in the nonferrous metallurgy process, and the like.
After lime milk is adopted for precipitation in nickel wet smelting, ore pulp containing gypsum and cobalt nickel hydroxide is generated, the ore pulp is fed into a supergravity classification device 100 to automatically separate cobalt nickel hydroxide from gypsum, the cobalt nickel hydroxide ore pulp is produced in a semi-continuous overflow mode, and the gypsum ore pulp in a rotary drum is led out intermittently.
Referring to fig. 1, according to some embodiments of the invention, a slurry supply apparatus 210 includes: a slurry tank 211 and a feed pump 212, wherein the slurry tank 211 is connected with the feed and discharge pipeline 4; a feed pump 212 is connected to the slurry tank 211 for pumping slurry into the supergravity classification device 100. The slurry in the slurry tank 211 is conveniently pumped by a feed pump 212 to the supergravity distribution apparatus 100 for separation.
According to some embodiments of the present invention, the slag flushing device 220 includes: a slag flushing tank 221 and a self-priming pump 222, wherein the slag flushing tank 221 is connected with the feeding and discharging pipeline 4; a self-priming pump 222 is coupled to the slag flushing tank 221 for pumping slag (e.g., separating slag) from the supergravity classification device 100 into the slag flushing tank 221. That is, the separated slag of the flushing hypergravity classification apparatus 100 may be sucked into the slag flushing tank 221 by the self-sucking pump 222 to be stored.
Referring to fig. 1, at least one of the slurry supply device 210, the slag flushing device 220, and the overflow tank 230 may be connected with a stirring device, and materials can be stirred by the stirring device, so that material precipitation is avoided, and the materials are more uniform.
For example, the slurry supply device 210 may be connected to a stirring device, and the stirring device may include a stirring portion and a driving member, and the stirring portion may be driven to rotate by the driving member, so as to stir the slurry in the slurry tank 211, prevent the slurry from settling, and enable the slurry to be injected into the super gravity separation device 100 more uniformly for separation.
According to some embodiments of the invention, the control element may be incorporated into a DCS (i.e., distributed Control System, distributed control system) or a cell phone APP for monitoring or controlling by authority. Therefore, the automation and the intelligent degree of the supergravity grading process system 200 can be further improved, and the control is easy and the operation is convenient.
According to some embodiments of the present invention, as shown in fig. 2, a supergravity classifying device 100 according to an embodiment of the present invention includes: the device comprises a fixed bracket 7, a cylinder 1, a rotary drum 2, a rotary drum motor 3, a feeding and discharging pipeline 4 and a lifting device 5.
Specifically, the cylinder 1 is provided on the fixing bracket 7 (for example, by welding or the like), and the cylinder 1 has a slurry outlet 11 communicating with the inner cavity thereof, and the slurry in the cylinder 1 can be further discharged through the slurry outlet 11.
The rotary drum 2 is installed in the cylinder 1. The material of the cylinder 1 can be stainless steel, titanium and the like, and the cylinder 1 not only can protect the rotary drum 2, but also can prevent overflow slurry from splashing.
For example, the drum 2 may be provided at the bottom inside the cylinder 1, and the relative position of the drum 2 and the cylinder 1 is fixed, and the top of the drum 2 may be opened, or a feed inlet and a feed outlet communicating with the inner cavity of the cylinder 1 is formed in the drum 2.
The drum motor 3 is provided outside the drum body 1, and the drum motor 3 is connected to the drum 2 to drive the drum 2 to rotate. The rotary drum 2 can be made of stainless steel or titanium, and the rotary drum motor 3 can be arranged below the rotary drum 2, and the rotary drum 2 can be driven to rotate at a high speed through the rotary drum motor 3 to generate supergravity, so that the slurry separation is facilitated.
The supergravity herein means a centrifugal force generated by the high-speed rotation of the drum 2, and the acceleration of the rotation of the drum 2 is greater than the gravitational acceleration.
The lower end of the feeding and discharging pipe 4 is adapted to extend into the drum 2. By extending the feed and discharge conduit 4 into the drum 2, it is easy to add slurry to the drum 2 or to withdraw slurry from the drum 2.
The lifting device 5 is arranged outside the cylinder body 1, the lifting device 5 is connected with the material inlet and outlet pipeline 4, and the lifting device 5 is connected with a lifting motor 6 to drive the material inlet and outlet pipeline 4 to ascend and descend. Through elevating gear 5 and elevator motor 6, can promote or descend business turn over pipeline 4 voluntarily, convenient operation.
The slurry can be injected into the rotary drum 2 through the feeding and discharging pipeline 4, the rotary drum 2 is driven by the rotary drum motor 3 to rotate at a high speed to generate supergravity, and the slurries with different specific gravities can be layered, so that the slurry separation is facilitated, the operation is easy, and the separation efficiency is high.
According to the supergravity grading device 100 provided by the embodiment of the invention, slurry can be injected into the rotary drum 2 through the feeding and discharging pipeline 4, the rotary drum 2 is driven to rotate at a high speed through the rotary drum motor 3 to generate supergravity, and the slurry with different specific gravities can be layered, so that the separation of the slurry is facilitated, the operation is easy, and the separation efficiency is high.
Wherein, a first flexible pipe section 201 is arranged between the material inlet and outlet pipeline 4 and the second joint 242, and a second flexible pipe section 202 is arranged between the material inlet and outlet pipeline 4 and the slag flushing groove 221. By arranging the first flexible pipe section 201 and the second flexible pipe section 202, compensation is performed in the automatic lifting process of the feeding and discharging pipeline 4 of the supergravity grading device 100, and combination is more reasonable.
The valve body assembly 240 may be a three-way valve or the like, for example, the first port 241 of the valve body assembly 240 may be accessed with flush water for cleaning the bowl 2, programmed by the control.
For example, the control can be programmed to stop the feed pump 212 after a certain amount of time has passed, start the flushing water and self-priming pump 222, and clean the bowl 2 of the relatively heavy particulate slurry.
Further, referring to fig. 1, a first switch valve 250 is disposed at the first interface 241, a second switch valve 260 is disposed between the material inlet and outlet pipe 4 and the first flexible pipe section 201, a third switch valve 270 is disposed between the third interface 243 and the slurry tank 211, and a fourth switch valve 280 is disposed between the second flexible pipe section 202 and the slag flushing tank 221.
Wherein, when the second port 242 is communicated with the third port 243 and both the second switching valve 260 and the third switching valve 270 are opened, both the first switching valve 250 and the fourth switching valve 280 are closed. At this time, the slurry in the slurry supply device 210 may enter the drum 2 via the third switching valve 270, the third port 243, the second port 242, and the second switching valve 260 of the valve body assembly 240 in this order, and be further separated via the feeding and discharging pipe 4.
When the first port 241 communicates with the second port 242 and both the first switching valve 250 and the second switching valve 260 are opened, both the third switching valve 270 and the fourth switching valve 280 are closed. At this time, the flushing water is conveniently injected into the drum 2 to flush the drum 2.
When the fourth switching valve 280 is opened, the second switching valve 260, the third switching valve 270, and the fourth switching valve 280 are all closed. After the drum 2 is washed, the flushing slag in the drum 2 is conveniently extracted, and the operation is easy.
Further, in connection with fig. 1, a fifth on-off valve 290 is also provided between the feed pump 212 and the slurry tank 211. This facilitates better control of the slurry tank 211 in injecting slurry into the bowl 2.
For example, if the feed pump 212 fails, the slurry tank 211 may be controlled to close by closing the fifth valve 290 to stop feeding.
Wherein the first, second, third, fourth and fifth switching valves 250, 260, 270, 280 and 290 may be electric or pneumatic valves, controlled by the control member.
Referring to fig. 1 and 2, according to some embodiments of the present invention, a drum motor 3 is disposed at the bottom outside the cylinder 1, and the drum motor 3 is in transmission connection with the drum 2 (e.g., gear transmission, belt transmission, etc.), and the drum 2 can be driven to rotate at a high speed by the drum motor 3, so as to facilitate further separation of slurry.
The lifting device 5 is arranged at the top outside the cylinder body 1. The lifting device 5 is convenient to install, the automation degree of the supergravity grading device 100 is improved, and the efficiency is improved.
According to some embodiments of the present invention, the drum 2 is formed with a shaft portion extending downward and opposite to an output shaft of the drum motor 3, and the drum 2 is connected to the drum motor 3 through a coupling. In other words, the drum 2 is formed with a shaft portion which may extend downward and which may be opposite to the output shaft of the drum motor 3, thereby facilitating reliable connection between the drum 2 and the drum motor 3 by means of a coupling.
As shown in fig. 2, according to some embodiments of the invention, the feed and discharge pipeline 4 comprises: a main pipe 41 and a branch pipe 42, the main pipe 41 extending in the up-down direction (refer to the up-down direction shown in fig. 2); the branch pipes 42 are provided at the lower end of the main pipe 41, and the branch pipes 42 communicate with the main pipe 41, and the branch pipes 42 may include one or a plurality of branch pipes arranged at intervals in the circumferential direction. Thus, in the process of injecting the slurry into the feeding and discharging pipeline 4, the slurry can be injected into the rotary drum 2 through the main pipeline 41 and then through the branch pipeline 42, so that the slurry is uniformly distributed in the rotary drum 2.
In addition, the material inlet and outlet pipeline 4 can enable the slurry to enter the rotary drum 2, the material inlet and outlet pipeline 4 can also discharge materials from the rotary drum 2, and flushing water can also be injected into the rotary drum 2 through the material inlet and outlet pipeline 4.
Referring to fig. 2, according to some embodiments of the present invention, the bottom of the cylinder 1 is tapered to shrink inwardly from top to bottom. The overflowed slurry of the rotary drum 2 is easy to slide downwards and accumulate through the cylinder body 1 in the process of high-speed rotation, so that the slurry is conveniently led out further.
Further, in connection with fig. 2, the slurry outlet 11 may be formed in the bottom wall of the cylinder 1. So that slurry accumulated in the bottom of the bowl 1 can be discharged via the slurry outlet 11.
Further, referring to fig. 2, the inner bottom surface of the cylinder 1 is formed with a stopper ring 12 extending upward and spaced apart from the outer bottom wall of the drum 2. That is, the inner bottom surface of the cylinder 1 is formed with the stopper ring 12, the stopper ring 12 may extend upward, and the stopper ring 12 may be spaced apart from the outer bottom wall of the drum 2. By arranging the baffle ring 12, slurry can be prevented from flowing into the rotary drum motor 3 and the joint of the rotary drum motor 3 and the rotary drum 2, thereby being beneficial to reducing the failure rate and ensuring the use reliability of the supergravity grading device 100.
Still further, with reference to fig. 1, the baffle ring 12 is offset from the slurry outlet 11 in the up-down direction, and the slurry outlet 11 may be located outside the baffle ring 12. Preferably, the baffle ring 12 is coaxial with the drum motor 3. Thus, the super-gravity classifying device 100 is compact and reasonable in structure.
According to some embodiments of the invention, the drum motor 3 is a variable frequency motor, and the frequency of the drum motor 3 is 0-50Hz. Therefore, the stepless speed regulating function can be realized after the rotary drum motor 3 is connected with the frequency converter, the rotary drum rotating speed is controlled, the rotary drum 2 is driven to rotate better, and the slurry separation is realized.
According to the supergravity grading device 100 provided by the embodiment of the invention, the rotary drum 2 is driven to rotate at a high speed by the rotary drum motor 3 to generate supergravity, so that materials with different granularity or specific gravity in waste residue slurry are layered in the supergravity grading device 100, fine particle overflow is continuously led out, coarse particles are regularly pumped away, the impurity content in the fine particle valuable substances is extremely low, and the volume of the coarse particles is extremely small.
The operation of the supergravity classification process system 200 according to an embodiment of the present invention is described in detail below with reference to fig. 1-2.
The control part can control the communication state of the valve body assembly 240, and the super-gravity grading device 100 can realize feeding, separating and slag flushing, so that the operation is convenient and the automation degree is high.
Specifically, the slurry may be fed into the supergravity classification device 100 from the slurry supply device 210 via the feed/discharge pipe 4, separated by the supergravity classification device 100, and discharged via the slurry outlet 11.
Flushing water can be injected into the super-gravity classifying device 100 through the feeding and discharging pipeline 4, the flushing water can flush separated slag in the super-gravity classifying device 100, and the separated slag flushing the super-gravity classifying device 100 can be further pumped to the slag flushing device 220 through the feeding and discharging pipeline 4.
The overflow launder 230 communicates with the slurry outlet 11 for collecting slurry overflowed from the hypergravity separation device 100.
The working process of the supergravity grading device 100 is as follows: full water is filled into the rotary drum 2 through the feeding and discharging pipeline 4, the rotary drum motor 3 is started, and the rotary drum 2 is driven to rotate at a certain speed; after slurry is introduced into the rotary drum 2 through the feeding and discharging pipeline 4, heavy particles in the slurry are attached to the inner wall of the rotary drum 2, and light particles overflow from the rotary drum 2 (for example, overflow from the open top of the rotary drum 2); stopping feeding after a certain time, putting down the feeding and discharging pipeline 4 to suck out coarse particle slurry, and then injecting water into the rotary drum 2 through the feeding and discharging pipeline 4 to clean the rotary drum 2, wherein flushing water can be discharged through the feeding and discharging pipeline 4.
Here, it is understood that the slurry may be directly introduced into the drum 2 without injecting water into the drum 2. The operation of the supergravity classification process system 200 according to the embodiment of the present invention is completed.
Other configurations and operations of the supergravity fractionation process system 200 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (8)
1. A supergravity classification process system, comprising:
the super-gravity classification device is provided with a feeding and discharging pipeline and a slurry outlet;
the slurry supply device is connected with the material inlet and outlet pipeline and comprises a slurry tank;
the slag flushing device is connected with the feeding and discharging pipeline and comprises a slag flushing groove;
the overflow groove is communicated with the slurry outlet and is used for collecting slurry overflowed by the supergravity grading device;
a control comprising an integrated PLC system to control automated production of the supergravity fractionation process system;
the valve body assembly is provided with a first interface, a second interface and a third interface, the first interface is connected with a water source, the second interface is communicated with the material inlet and outlet pipeline, and the third interface is communicated with the slurry supply device;
wherein the control part respectively controls the first interface and the third interface to be connected or disconnected with the second interface;
the supergravity classifying device comprises:
a fixed bracket;
the cylinder body is arranged on the fixed support, and the slurry outlet is formed on the cylinder body;
the rotary drum is arranged in the cylinder, and the lower end of the material inlet and outlet pipeline is suitable for extending into the rotary drum;
the rotary drum motor is arranged at the outer bottom of the cylinder body and connected with the rotary drum for driving the rotary drum to rotate;
the lifting device is arranged at the outer top of the cylinder body and connected with the feeding and discharging pipeline, and is connected with a lifting motor to drive the feeding and discharging pipeline to ascend and descend;
a first flexible pipe section is arranged between the feeding and discharging pipeline and the second connector, and a second flexible pipe section is arranged between the feeding and discharging pipeline and the slag flushing groove;
a first switch valve is arranged at the first interface, a second switch valve is arranged between the material inlet and outlet pipeline and the first flexible pipe section, a third switch valve is arranged between the third interface and the slurry tank, and a fourth switch valve is arranged between the second flexible pipe section and the slag flushing tank;
when the second interface is communicated with the third interface and the second switch valve and the third switch valve are both opened, the first switch valve and the fourth switch valve are both closed;
when the first interface is communicated with the second interface and the first switch valve and the second switch valve are both opened, the third switch valve and the fourth switch valve are both closed;
when the fourth switch valve is opened, the second switch valve, the third switch valve and the fourth switch valve are all closed;
the bottom of the cylinder body is in a cone shape which is contracted inwards from top to bottom, and the slurry outlet is formed on the bottom wall of the cylinder body;
the inner bottom surface of the cylinder body is provided with a baffle ring which extends upwards and is spaced from the outer bottom wall of the rotary drum, the baffle ring is staggered with the slurry outlet in the up-down direction, and the slurry outlet is positioned outside the baffle ring.
2. The supergravity classification process system according to claim 1, wherein the slurry supply means comprises:
the slurry tank is connected with the feeding and discharging pipeline;
and the feed pump is connected with the slurry tank and used for pumping slurry into the supergravity grading device.
3. The supergravity classification process system according to claim 1, wherein the slag flushing device comprises:
the slag flushing groove is connected with the feeding and discharging pipeline;
the self-sucking pump is connected with the slag flushing groove and used for pumping slag flushing into the slag flushing groove by the supergravity grading device.
4. The supergravity classification process system according to claim 1, wherein the control is imported into DCS or cell phone APP for monitoring or controlling by authority.
5. The supergravity classification process system according to claim 2, wherein a fifth on-off valve is further provided between the feed pump and the slurry tank.
6. The supergravity classification process system according to claim 1, wherein the drum motor is in driving connection with the drum; or (b)
The rotary drum is provided with a shaft part which extends downwards and is opposite to an output shaft of the rotary drum motor, and the rotary drum is connected with the rotary drum motor through a coupler.
7. The supergravity classification process system according to claim 1, wherein the feed and discharge conduit comprises:
a main pipe extending in the up-down direction;
the branch pipeline is arranged at the lower end of the main pipeline and is communicated with the main pipeline, and the branch pipeline comprises one or a plurality of branch pipelines which are arranged at intervals along the circumferential direction.
8. The supergravity classification process system according to claim 1, wherein the drum motor is a variable frequency motor.
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