CN206454776U - A kind of equipment for controlling dense-medium separation suspension - Google Patents
A kind of equipment for controlling dense-medium separation suspension Download PDFInfo
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- CN206454776U CN206454776U CN201720043664.5U CN201720043664U CN206454776U CN 206454776 U CN206454776 U CN 206454776U CN 201720043664 U CN201720043664 U CN 201720043664U CN 206454776 U CN206454776 U CN 206454776U
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Abstract
The utility model provides a kind of equipment for controlling dense-medium separation suspension, including qualified medium bucket, the qualification medium pump main feed pipe and qualification medium pump positioned at qualified medium bucket bottom being sequentially connected with, qualification medium pump is also associated with the qualification medium pump discharge nozzle connected with heavy-media separator medium inlet, and qualification medium pump discharge nozzle is connected by return duct with qualified medium bucket；Qualified medium bucket top is connected with qualification medium pump auxiliary feed pipe, and the qualification medium pump auxiliary feed pipe other end is connected with qualification medium pump.The utility model has the following advantages that：Pipeline and equipment are simplified, is reduced investment outlay, reduction design, difficulty of construction, operation maintenance amount reduce；Use with the opening, without individually continuously opening air feed equipment during maintenance down, reduce power consumption, it is cost-effective；Automated condtrol is realized, is not easily blocked, is convenient to clean.
Description
Technical field
The utility model is related to a kind of equipment, more specifically, more particularly to a kind of controls dense-medium separation suspension to set
It is standby.
Background technology
Coal separation is entered according to the difference in coal and impurity physical property (such as granularity, density, hardness, magnetic and electrically)
Row sorting, physics coal separation and physical chemistry coal preparation technology are the technologies commonly used during actual coal separation is produced, and typically can effectively remove coal
Middle inorganic sulfur (pyritic sulfur), chemical coal separation and microorganism coal separation can also remove the organic sulfur in coal.The effect of coal washing：Carry
High Coal Quality, reduction pollution that caused by coal burning thing discharge, improve coal utilization efficiency, save the energy, optimize product structure, improve product
Competitiveness, reduces transport power and wastes.
Coal in China industry more distinct issues are exactly that coal washing rate is relatively low, and relatively low enters rate of washing, and not only environment can be made
Very big influence is will also result in into very big influence, and to the product of downstream industry.The characteristics of due to coal resources in China is
Interior ash is higher, and difficult separation coal is more, and high-sulfur output of coal increases with mining depth, and development heavy media coal separation (is also referred to as dense medium
Coal separation) technology be colleague common recognition.Heavy media coal separation is to be more than 1g/cm in density3Medium in, by the big of grain density
Small difference carries out coal separation.The advantage of heavy media coal separation is that the efficiency of separation is high, feed particle size scope is wide, and production control is easy to automatic
Change.Especially recently as the further development of coal market economy, the requirement of environment and user to Coal Quality is increasingly
Height, also more and more substantially, most of newly-built or reconstruction coal preparation plant all employs part dense medium to the superiority of high-precision sink float
Or full weight Jie's flow., it is expected that the selected proportion of the heavy media coal separation method of China will be stepped up to more than 70%.
Heavy media coal separation way generally used now is to use heavy-media suspension coal separation.Heavy-media suspension (is also referred to as dense medium
Suspension or heavy suspension) it is to be formed by granular solid (medium solid) and water mixture.Production practices for many years show, magnetic
Iron ore is that the dense medium of most suitable coal separation aggravates material, so coal separation now with magnetite powder is used medium solid more, in weight
During media coal separation, the loss of dense medium suspension liquid medium solid (such as magnetite powder) is unavoidable.And dielectric loss is always
It is the important technical evaluation index in one, sink float coal works.Because medium solid granularity is thinner, heavy suspension density is also more stable,
Also accordingly reduced for the slime content that stabilization is mixed in heavy suspension；After medium solid granularity is thicker, heavy suspension is stable
Property be deteriorated, in order to meet stability requirement certainly will increase shale thing content, so as to cause under sculping screen and efficiency of separator
Drop, medium solid loss is significantly increased.The granularity of magnetite powder belongs to coarse dispersion suspension between 1~500 μm, be one not
Stable system, solid particle is affected by gravity in a liquid to occur sedimentation layering, do not produce especially standing when
Wait.In addition, magnetite powder moisture also can not be ignored on the consumption influence that is situated between.Such as moisture height, medium conglomeration can be made blocking, not only cause to add
Be situated between difficult, and medium enter charging basket after be difficult to disperse, cause suspension unstable.Thus improve the stabilization of heavy-media suspension
Matter of utmost importance of the property into heavy media coal separation.Usual ameliorative way mainly has：
1st, using the thinner magnetite powder of granularity.
2nd, allow to retain more coal slime in medium system.
3rd, the mechanical agitation (such as lifting wheel or scraper plate) in sorting groove is utilized.
4th, using level or on rush medium flow field.
But be all to use generally when maintenance down for the qualified medium bucket that rabbling mechanism can not be set
Blow the method for high-pressure blast to reduce the sedimentation of heavy-media suspension, onsite application finds that effect is not fine, and one is medium solid
Density of suspending liquid is larger, and high-pressure blast is typically by the circulating line supply around barrel surrounding, only in the office near bucket wall
Portion improves the sedimentation phenomenon of suspension, is still settled close to conjunction Jie's bucket center obvious；Two be that high-pressure blast is generally all
Realize supply by air compressor machine, air compressor machine must the continual operation during maintenance down, power consumption is big, and once
It is out of service, close Jie's bucket and interior suspension precipitated soon, usual high-pressure air hose it is all thinner (general caliber≤DN50,
Caliber increases, and blast consumption is greatly increased, and wind speed can not improve, and effect is bad), high-pressure air hose is easily blocked, causes high-pressure air hose
Failure, high-pressure blast drum is not come in, and magnetite powder accumulates in a barrel bottom, plugs the feeding pipe of qualification medium pump, qualification medium pump without
Method starts, and system can not be run, and the medium that Jie's bucket can only be often closed by removing adds medium completion heavy-media suspension again again
Preparation, being normally carried out for production is often have impact on while wasting time and energy.
Utility model content
The purpose of this utility model is that the shortcoming for overcoming above-mentioned prior art suspends there is provided one kind control dense-medium separation
The equipment of liquid.
To achieve these goals, the technical scheme of the utility model offer is：
Control dense-medium separation suspension equipment, including be sequentially connected with qualified medium bucket, positioned at qualified medium bucket bottom
Qualification medium pump main feed pipe and qualification medium pump, qualification medium pump be also associated with and go heavy-media separator medium inlet connect
Logical qualification medium pump discharge nozzle, qualification medium pump discharge nozzle is connected by return duct with qualified medium bucket, so that heavy coal separation
Suspension cyclically flows in the equipment of control dense-medium separation coal separation suspension；Qualified medium bucket top is connected with qualified Jie
Matter pump aids in feed pipe, and the qualification medium pump auxiliary feed pipe other end is connected with qualification medium pump.
Preferably, qualification medium pump main feed pipe is by wear-resistant steel pipe, qualification medium pump main feed pipe hand sluice valve, qualified Jie
Matter pump main feed pipe electricity hydraulic valve, collar clamp type flexible pipe joint and reduced pipe composition.
Preferably, it is also equipped with accident vomit pipe on qualification medium pump main feed pipe.
It is highly preferred that being provided with accident vomit pipe hand sluice valve on accident vomit pipe.
Preferably, qualification medium pump auxiliary feed pipe is provided with the electric hydraulic valve of qualification medium pump auxiliary feed pipe.
Preferably, the electric hydraulic valve of qualification medium pump discharge nozzle is provided with qualification medium pump discharge nozzle.
Preferably, the electric hydraulic valve of return duct is provided with return duct.
Preferably, return duct caliber >=DN150.
Preferably, return duct oblique cutting to qualified medium bucket bottom.
Compared with prior art, the utility model has the following advantages that：
1st, the equipment that this must have using qualification medium pump, without being separately provided air compressor machine and supporting air accumulator, air
Cleaning equipment etc., saves equipment investment；
2nd, the setting of blowing line is reduced, it is to avoid complicated pipe-line system, design, the difficulty reduction of construction, coal separation
Medium system operation maintenance amount reduces；
3rd, the present apparatus is used with the opening, and air feed equipment progress suspension is individually continuously opened during being not used in maintenance down anti-settling
Operation is dropped, power consumption is reduced, has saved operating cost；
4th, pipe-line system key position valve employs electro-hydraulic dynamic gate valve in the present apparatus, is easy to implement automation control
System, reduces manual labor；
5th, return duct caliber is thicker in the present apparatus, general >=DN150, and oblique cutting is not easily blocked, just to qualified medium bucket bottom
In cleaning.
Brief description of the drawings
The equipment for the control dense-medium separation suspension that Fig. 1 provides for embodiment 1 working state figure when production system is shut down；
Fig. 2 is the equipment floor plan for the control dense-medium separation suspension that embodiment 1 is provided；
The equipment for the control dense-medium separation suspension that Fig. 3 provides for embodiment 1 working state figure when production system starts；
The valve start-stop when production system starts of the equipment for the control dense-medium separation suspension that Fig. 4 provides for embodiment 1 is suitable
Program flow diagram；
The valve start-stop when production system is shut down of the equipment for the control dense-medium separation suspension that Fig. 5 provides for embodiment 1 is suitable
Program flow diagram.
Embodiment
In order to more clearly describe technology contents of the present utility model, traveling one is entered with reference to specific embodiment
The description of step.
Embodiment 1
As shown in Fig. 1~2, the equipment for the control dense-medium separation suspension that the utility model is provided includes the conjunction being sequentially connected with
Lattice medium bucket 1, qualification medium pump main feed pipe 2 and qualification medium pump 3 positioned at 1 bottom of qualified medium bucket, qualification medium pump 3 is also
The qualification medium pump discharge nozzle 4 connected with heavy-media separator medium inlet is connected with, qualification medium pump discharge nozzle 4 is also by returning
Flow tube 5 and qualified medium bucket 1 connect, so that heavy coal separation suspension is cyclically in the equipment for controlling dense-medium separation suspension
Flowing；Qualified medium bucket 1 top be connected with qualification medium pump auxiliary feed pipe 6, qualification medium pump auxiliary the other end of feed pipe 6 with
Qualification medium pump 3 is connected, it is to avoid the heavy coal separation suspension flow velocity in main feed pipe 2 is too low.
Qualification medium pump main feed pipe 2 is by wear-resistant steel pipe, qualification medium pump main feed pipe hand sluice valve 21, qualification medium pump
Main feed pipe electricity hydraulic valve 22, collar clamp type flexible pipe joint and reduced pipe composition.Wherein qualification medium pump main feed pipe is manual
Gate valve 21 is constantly in opening when flat, only closed when the electric hydraulic valve 22 of qualification medium pump main feed pipe needs maintenance,
To prevent the heavy-media suspension in qualified medium bucket 1 from leaking.
The electric hydraulic valve 41 of qualification medium pump discharge nozzle is provided with qualification medium pump discharge nozzle 4.
The electric hydraulic valve 51 of return duct is provided with return duct 5.
Qualification medium pump auxiliary feed pipe 6 is provided with the electric hydraulic valve 61 of qualification medium pump auxiliary feed pipe.
Accident vomit pipe 7 is also equipped with qualification medium pump main feed pipe 2；Accident blowing is provided with accident vomit pipe 7
Pipe hand sluice valve 71.
When needing control dense-medium separation suspension, it can start in production system first 5~8 minutes and open heavy-media suspension
Partial circulating, to complete the preparation of qualified suspension, the behaviour of the equipment for the control dense-medium separation suspension that the utility model is provided
Work order be：Closing accident vomit pipe hand sluice valve 71, closes the electric hydraulic valve 41 of qualification medium pump discharge nozzle, opens qualified be situated between
The electric hydraulic valve 61 of matter pump auxiliary feed pipe, opens the electric hydraulic valve 51 of return duct, starts qualification medium pump 3, now qualified to be situated between
Matter pump 3 extracts supernatant liquor from the top of qualified medium bucket 1 via auxiliary feed pipe 6, and conjunction is squeezed into via the impeller of qualification medium pump 3
Lattice medium pump discharge nozzle 4,1 bottom of qualified medium bucket is returned into return duct 5, and the magnetite powder positioned at qualified medium bucket bottom exists
Gradually washed open under the powerful flow of qualification medium pump 3 and pressure, ultimately form the even heavy-media suspension of the equal grain of matter, refer to Fig. 3,
Whole process takes around 5~8 minutes.
When the densitometer in qualified medium bucket shows that density reaches setting value in bucket, partial circulating task is completed, can
The heavy-media suspension for preparing completion is delivered to heavy-media separator medium inlet, operation order now is：It is qualified to open
Medium pump discharge nozzle electricity hydraulic valve 41, closing volume pipe electricity hydraulic valve 51, opens qualification medium pump main feed pipe electro-hydraulic dynamic
Gate valve 22, closes the electric hydraulic valve 61 of qualification medium pump auxiliary feed pipe, and qualified suspension passes through qualification medium pump main feed pipe 2
Into qualification medium pump 3, in the presence of impeller, qualified heavy-media suspension enters qualification medium pump discharge nozzle 4 and then passed through
Pipeline, which enters, removes heavy-media separator qualified medium entrance, and qualified medium conveying is completed, the utility model when production system starts
Valve start-stop order refer to Fig. 4.
When production system is shut down, the equipment operational procedure for the control dense-medium separation suspension that the utility model is provided is：
The electric hydraulic valve 22 of qualification medium pump main feed pipe closed on qualification medium pump 3, closes qualification medium pump 3, opens to be located at and close
The electric hydraulic valve 41 of qualification medium pump discharge nozzle on lattice medium pump discharge nozzle 4, opens the accident being located on accident vomit pipe 7 and puts
Suspension in expects pipe hand sluice valve 71, pump flows out naturally under gravity, qualification medium pump 3 is in Light Condition, with
Prevent suspension from settling and depositing in qualification medium pump 3, the next time of influence qualification medium pump 3 smoothly starts, closing volume pipe
Electric hydraulic valve 51 prevents the solid particle in suspension enters from blocking return duct 5 in return duct 5, now valve of the present utility model
Door start-stop order refers to Fig. 5.Elapse over time, qualified medium bucket 1 in solids in suspension particle under gravity by
Gradually settle, supernatant liquor, the stratification state of underlying magnets miberal powder are formed in final bucket, as shown in Figure 1.
The utility model provide control dense-medium separation suspension equipment in the process of running, all electric hydraulic valves
Add in production collection control program, whole working cycles only need the gate valve of manual operation there was only accident vomit pipe hand sluice valve 71,
Automated condtrol is realized, manual labor is reduced.
In this description, the utility model is described with reference to its specific embodiment.But it is clear that still can be with
Various modification can be adapted and conversion is without departing from spirit and scope of the present utility model.Therefore, specification and drawings are considered as
It is illustrative and not restrictive.
Claims (9)
1. control the equipment of dense-medium separation suspension, it is characterised in that：Including be sequentially connected with qualified medium bucket, positioned at it is qualified be situated between
The qualification medium pump main feed pipe and qualification medium pump of matter bucket bottom, qualification medium pump are also associated with and heavy-media separator medium
The qualification medium pump discharge nozzle of entrance connection, qualification medium pump discharge nozzle is connected by return duct with qualified medium bucket；It is qualified to be situated between
Matter bucket top is connected with qualification medium pump auxiliary feed pipe, and the qualification medium pump auxiliary feed pipe other end connects with qualification medium pump
It is logical.
2. the equipment described in claim 1, it is characterised in that：Qualification medium pump main feed pipe is by wear-resistant steel pipe, qualification medium pump
The electric hydraulic valve of main feed pipe hand sluice valve, qualification medium pump main feed pipe, collar clamp type flexible pipe joint and reduced pipe composition.
3. the equipment described in claim 1, it is characterised in that：Qualification medium pump main feed pipe is provided with accident vomit pipe.
4. the equipment described in claim 3, it is characterised in that：Accident vomit pipe hand sluice valve is provided with accident vomit pipe.
5. the equipment described in claim 1, it is characterised in that：Qualification medium pump aids in feed pipe to be aided in provided with qualification medium pump
Feed pipe electricity hydraulic valve.
6. the equipment described in claim 1, it is characterised in that：Qualification medium pump discharge nozzle is provided with qualification medium pump discharge nozzle
Electric hydraulic valve.
7. the equipment described in claim 1, it is characterised in that：The electric hydraulic valve of return duct is provided with return duct.
8. the equipment described in claim 1, it is characterised in that：Return duct caliber >=DN150.
9. the equipment described in claim 1, it is characterised in that：Return duct oblique cutting to qualified medium bucket bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720043664.5U CN206454776U (en) | 2017-01-14 | 2017-01-14 | A kind of equipment for controlling dense-medium separation suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720043664.5U CN206454776U (en) | 2017-01-14 | 2017-01-14 | A kind of equipment for controlling dense-medium separation suspension |
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| Publication Number | Publication Date |
|---|---|
| CN206454776U true CN206454776U (en) | 2017-09-01 |
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ID=59695543
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720043664.5U Active CN206454776U (en) | 2017-01-14 | 2017-01-14 | A kind of equipment for controlling dense-medium separation suspension |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106799299A (en) * | 2017-01-14 | 2017-06-06 | 泰富重工制造有限公司 | A kind of device and method of control dense-medium separation suspension |
| CN110976062A (en) * | 2019-12-30 | 2020-04-10 | 内蒙古蒙西矿业有限公司 | Coal washing process capable of improving utilization rate |
-
2017
- 2017-01-14 CN CN201720043664.5U patent/CN206454776U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106799299A (en) * | 2017-01-14 | 2017-06-06 | 泰富重工制造有限公司 | A kind of device and method of control dense-medium separation suspension |
| CN110976062A (en) * | 2019-12-30 | 2020-04-10 | 内蒙古蒙西矿业有限公司 | Coal washing process capable of improving utilization rate |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Device and method for controlling dense medium coal separation suspension liquid Effective date of registration: 20180503 Granted publication date: 20170901 Pledgee: Xiangtan Jiuhua Economic Construction Investment Co., Ltd. Pledgor: Tidfore Engineering Co., Ltd.|Tidfore Heavy Industry Co., Ltd.|Ocean engineering equipment (Tianjin) Co., Ltd. Registration number: 2018430000029 |