CN104922947A - Novel underflow anti-clogging discharge method and device for thickener - Google Patents
Novel underflow anti-clogging discharge method and device for thickener Download PDFInfo
- Publication number
- CN104922947A CN104922947A CN201510268500.8A CN201510268500A CN104922947A CN 104922947 A CN104922947 A CN 104922947A CN 201510268500 A CN201510268500 A CN 201510268500A CN 104922947 A CN104922947 A CN 104922947A
- Authority
- CN
- China
- Prior art keywords
- underflow
- arm
- discharge
- supervisor
- clogging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of chemical industry, smelting industry and coal industry, and particularly relates to a novel underflow anti-clogging discharge method and a novel underflow anti-clogging discharge device, which are created and modified on the basis of a conventional thickener underflow discharge system, for a thickener. In order to solve the current situation that potential safety and environment-friendly hazards such as pipeline clogging, pump body coagulation, underflow overflow and the like are liable to occur in a natural underflow discharge process of the thickener, and the maintenance cost is high, the invention provides a safe, environment-friendly and efficient underflow anti-clogging discharge method and underflow anti-clogging discharge device for the thickener. The novel underflow anti-clogging discharge method and the novel underflow anti-clogging discharge device have the characteristics of being anti-clogging, safe, environment-friendly, convenient and time-saving to repair and maintain, capable of reducing the maintenance cost, stable in underflow discharge, and high in efficiency.
Description
Technical field
The invention belongs to the industry technology fields such as chemical industry, smelting, coal, is a kind of novel thickener underflow anti-clogging discharge method and device that carry out innovating and transforming on the basis of traditional thickener underflow exhaust system.
Background technology
The open discharge that current thickener underflow nature exhaust system majority adopts, namely by a medial launder, after underflow discharge to medial launder, carried by pump again, the volume imbalance that in use very easily occurs this mode of movement causes medial launder and overflows the phenomenon of liquid, and this mode of movement needs post operation personnel on site to stand fast at, and on-the-spot start-stop equipment and controlling opening of valve are to keep the volumetric balance of medial launder, use complexity, labour intensity is large.The phenomenons such as even if having the underflow discharge device of part concentrator to adopt closed pipeline conveying, but it very easily line clogging occurs, the pump housing is solidifying dead, burn-down of electric motor, maintenance cleaning difficulty, once occur that line clogging need take cleaning apart by root, workload is large, and maintenance cost is high.
Summary of the invention
The present invention be directed in thickener underflow nature discharge process and easily occur that line clogging, the pump housing are solidifying dead, underflow overflows the safety such as liquid, environmental protection hidden danger, and the present situation that maintenance cost is high, provides a kind of safety, environmental protection, efficiently thickener underflow anti-clogging tapping equipment.
In order to achieve the above object, the present invention proposes following technical scheme:
A kind of novel thickener underflow anti-clogging tapping equipment, described underflow discharge device mainly comprises taper feed opening, supervisor, arm, branched pipe, pump discharge arm, pump inlet arm, high-pressure air hose, motor and dirt discharge groove, wherein, taper feed opening accesses the below be arranged at the bottom of concentrator pond, taper feed opening is connected with supervisor, main valve is provided with between taper feed opening and supervisor, supervisor is connected with arm by reducing short tube, reducing short tube is provided with arm main valve, arm is divided into pump inlet arm and pump discharge arm by branched pipe, pump inlet arm is provided with blowoff valve and sewage draining exit, the below of sewage draining exit is provided with dirt discharge groove, pump discharge arm is provided with two for sending the centrifugal pump of underflow, centrifugal pump is provided with motor, be connected by centrifugal pump arm for subsequent use between two centrifugal pumps, pump discharge arm is provided with arm valve, centrifugal pump is provided with terminal valve, supervisor is provided with high-pressure air hose, and high-pressure air hose is provided with two airduct valves, and arm and branched pipe are provided with inspection socket.
As preferably, described taper feed opening, supervisor are stainless steel.
As preferably, described supervisor one end adopts stainless steel blind plate to block, with bolts between blind plate and supervisor's flange, and described supervisor one end adopts stainless steel blind plate to block, with bolts between blind plate and supervisor's flange.
As preferably, described supervisor one end adopts stainless steel blind plate to block, and with bolts between blind plate and supervisor's flange, underflow discharge device arrives pump discharge arm again by supervisor, arm, from coarse to fine, adopts two centrifugal pumps to carry.
Based on the discharge method of above novel thickener underflow anti-clogging tapping equipment, described method comprises the following steps:
1) package unit adopts closed pipeline discharge, carries out remote control, control the unlatching of centrifugal pump or the carrying out of stopping by control room;
2) whether during underflow discharge, check and use the terminal valve of centrifugal pump and arm valve to open, open supervisor's valve, thickener underflow naturally flows into the pump housing under self gravitation effect, and notice control room remote activation centrifugal pump starts to discharge underflow;
3) if centrifugal pump flows out without slag liquid after opening, then notify that control room stops discharge immediately, first open blowoff valve slowly to open high-pressure air hose again and purge supervisor and dredge, must guard against high-pressure air hose and be in full-gear, after sewage draining exit has slag liquid to flow out, close blowoff valve and high-pressure air hose again, again notify control room discharge underflow, the slag liquid that sewage draining exit is got rid of enters centrifugal pump through dirt discharge groove and again sees off;
4) thickener underflow preventing clogging up device is furnished with the inspection socket being convenient to the cleaning of pipeline periodicity and safeguarding, when centrifugal pump inlet pipeline occurs abnormal, can be used as underflow outlet for subsequent use use, access all the other outlets and carry out underflow discharge;
5) high-pressure air hose realizes, to supervisor and the cleaning of arm and arm and dredging, when closing supervisor's valve, realizing the cleaning to branched pipe; When closing arm main valve, the cleaning to supervisor and dredging can be realized.
As preferably, in step 3), blowoff valve open degree remains on less than 45 °, avoids the excessive slag liquid of underflow impulsive force to spill dirt discharge groove.
As preferably, remote control is carried out by control room in step 1), to the concrete steps of the unlatching of centrifugal pump or the control of stopping be: control system adopts DCS control system, unlatching or halt instruction is sent by DCS control system, be signal of telecommunication starting relay through switch, terminal cabinet module converts, and then start or stop centrifugal pump.
The present invention has the following advantages compared with traditional thickener underflow tapping equipment:
1) anti-clogging: whole thickener underflow tapping equipment pipeline is from coarse to fine, tapered conveying, thus increases Cemented filling pressure, and pipeline pressure is larger more backward, and slag liquid mobility is stronger.According to the difference of technological requirement, as discharged excessive cycle, part slag liquid in pipeline then can aggegation together even can blocking pipe, before unlatching centrifugal pump, first open high-pressure air hose purge conveyance conduit and dredge, and then open centrifugal pump and normally carry, the inspection socket be furnished with in addition, periodically clearing up except maintenance except being convenient to pipeline, also can be used as apex for subsequent use and using.
2) safety, environmental protection: this thickener underflow preventing clogging up device is closed pipeline conveying, avoid underflow and need the on-the-spot potential safety hazard of closing down valve and bringing because there are unrestrained liquid phenomenon post personnel in course of conveying, as the generation of toxic and harmful in unrestrained liquid process, the injury of solution scald and corrosive liquids.In operating process, post personnel only need carry out site safety and confirm, the unlatching of pump and stopping by control room manipulation, thus reduce a series of security incidents that post personnel on site's controlling equipment causes.
3) overhaul, easy to maintenancely to save time: thickener underflow exhaust system pipe head all adopts stainless steel blind plate to block, below underflow discharge supervisor valve, being provided with high-pressure air hose, when line clogging, high-pressure air hose can being opened and carry out clearing up and dredging.Pipeline only needs opening conduits termination blind plate to clear up when doing periodicmaintenance cleaning, and without the need to dismantling pipeline and valve, motor has overload protection and electric current height report chain function in addition, can at utmost stop burn-down of electric motor phenomenon, improve motor service life.Compare with conventional exhaust system, this system saves maintenance time, reduces maintenance cost.
4) underflow discharge is stable, efficiency is high: in whole underflow discharge device, and from supervisor to arm again to pump discharge arm, whole system pipeline is from coarse to fine, tapered conveying, increase Cemented filling pressure, pipeline pressure is larger more backward, slag liquid mobility is stronger, thus improves transfer efficiency.
Accompanying drawing explanation
Fig. 1 thickener underflow anti-clogging tapping equipment structure chart;
Fig. 2 tele-control system figure;
Wherein, 1-taper feed opening, 2-main valve, 3-supervisor, 4-arm main valve, 5-reducing short tube, 6-inspection socket: 6a-inspection socket a, 6b-inspection socket b, 6c-inspection socket c; 7-dirt discharge groove, 8-centrifugal pump, 9-motor, 10-pump inlet arm, 11-arm, 12-arm valve, 13-terminal valve, 14-blowoff valve, 15-sewage draining exit, 16-high-pressure air hose, 17-airduct valve, 18-branched pipe, 19-pump discharge arm, 20-centrifugal pump arm for subsequent use, 21-power distribution cabinet, 22-terminal cabinet, 23-switch, 24-DCS control system.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention and accompanying drawing, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, described underflow discharge device mainly comprises taper feed opening 1, supervisor 3, arm 11, branched pipe 18, pump discharge arm 19, pump inlet arm 10, high-pressure air hose 16, motor 9 and dirt discharge groove 7, wherein, taper feed opening 1 accesses the below be arranged at the bottom of concentrator pond, taper feed opening 1 is connected with supervisor 3, main valve 2 is provided with between taper feed opening 1 and supervisor 3, taper feed opening 1 and supervisor 3 are stainless steel structure, supervisor 3 is connected with arm 11 by reducing short tube 5, reducing short tube 5 is provided with arm main valve 4, standby valve when damaging as main valve 2, arm 11 is divided into pump inlet arm 10 and pump discharge arm 19 by branched pipe 18, pump inlet arm 10 is provided with blowoff valve 14 and sewage draining exit 15, the below of sewage draining exit 15 is provided with dirt discharge groove 7, pump discharge arm 19 is provided with two for sending the centrifugal pump 8 of underflow, two centrifugal pump 8 a preparation and a use, the motor 9 of centrifugal pump 8 can adopt on the spot or long-range two kinds of start-up mode, be connected by centrifugal pump arm 20 for subsequent use between two centrifugal pumps 8, pump discharge arm 19 is provided with arm valve 12, and centrifugal pump 8 is provided with terminal valve 13, supervisor 3 is provided with high-pressure air hose 16, and high-pressure air hose 16 is provided with two airduct valves 17, and arm 11 and branched pipe 18 are provided with 7 inspection sockets 6, during for pipeline, valve exception, checks used.
A novel thickener underflow anti-clogging discharge method, described method comprises the following steps:
1) package unit belongs to closed pipeline discharge, wherein, unlatching or the stopping of package unit centrifugal pump 8 all carry out remote control by control room, what control system adopted is DCS control system 24, unlatching or halt instruction is sent by DCS control system 24, through switch 23, terminal cabinet 22 is converted to the relay in signal of telecommunication startup power distribution cabinet 22, and then start or stop centrifugal pump, the power distribution cabinet 22 of motor 9 is provided with comprehensive protection function, as fuse, air switch etc., automatic cut-off power is understood when motor exceedes rated current, in addition DCS control system 24 is provided with electric current height report, high report and low report, low reporting achievement can, once exceed the setting value of high report or low report, system can send stop signal, through switch, terminal cabinet is converted to signal of telecommunication starting relay, and then stopping centrifugal pump, control system as shown in Figure 2.
2) whether during underflow discharge, check and use the valve on the terminal valve 13 of pump and arm to open, open supervisor's valve, thickener underflow naturally flows into the pump housing under self gravitation effect, and notice control room remote activation centrifugal pump starts to discharge underflow;
3) to flow out without slag liquid afterwards as centrifugal pump 8 is opened, then notify that control room stops discharge immediately, first open blowoff valve 14 slowly to open high-pressure air hose 16 again and purge supervisor and dredge, must guard against high-pressure air hose 16 and be in full-gear, after sewage draining exit 15 has slag liquid to flow out, close blowoff valve 14 and high-pressure air hose 16 again, again notify control room discharge underflow, the slag liquid that sewage draining exit 15 is got rid of enters centrifugal pump 9 through dirt discharge groove 11 and again sees off;
4) inspection socket a thickener underflow preventing clogging up device is furnished with, inspection socket b, inspection socket c, periodically clear up except maintenance except being convenient to pipeline, also can be used as underflow outlet for subsequent use to use, when centrifugal pump inlet pipeline occurs abnormal, all the other outlets accessible carry out underflow discharge;
5) high-pressure air hose 16 can realize cleaning to supervisor 3 and arm 11 and arm and dredging.When closing supervisor's valve 2, the cleaning to branched pipe can be realized; When closing arm main valve 4, the cleaning to supervisor and dredging can be realized.Blowoff valve 14 is opened aperture and is remained on less than 45 °, avoids the excessive slag liquid of underflow impulsive force to spill dirt discharge groove.
1) during thickener underflow discharge, whether post personnel only need the terminal valve of the good pump of site inspection to open, and whether pipeline valve is opened, and on-the-spot with or without operating personnel, all inspections are ready, after site safety confirmation is errorless, just can notify that underflow discharge is carried out in control room.
2) in underflow discharge process, without the need to post, personnel stand fast at, and after underflow discharge, post personnel can be closed down centrifugal pump or close down centrifugal pump by control room is long-range in scene.
3) centrifugal pump is in whole service process, and control room all can be observed its electric current, and motor is not only provided with overload protection function; and control room operating system is provided with electric current height report and low reporting achievement can; once current overload or exceed high report, motor can automatic dead electricity, teaching display stand defencive function.
4) this thickener underflow preventing clogging up device is closed pipeline conveying, avoid underflow and need the on-the-spot potential safety hazard of closing down valve and bringing because there are unrestrained liquid phenomenon post personnel in course of conveying, as the generation of toxic and harmful in unrestrained liquid process, the injury of solution scald and corrosive liquids.
5) this thickener underflow tapping equipment belongs to seal Cemented filling, in acid, corrosive liquids and liquid with toxic and harmful there is good closure, improve the safety coefficient of post human users.
6) this underflow discharge device is applicable to the conveying of granule, acidity, poisonous and harmful, corrosivity, high temperatures underflow, high efficient block.
7) thickener underflow anti-clogging tapping equipment has 5 alternate outlets, when pipeline occurs extremely or need periodicity cleaning to safeguard, alternate outlets can be used to carry out underflow discharge.
Specific embodiment of the invention effect:
Certain smeltery's meutral innersion concentrator, its underflow pulp density >=60%, and containing sour PH5.0 ~ 5.5, slurry temperature >=70 DEG C, because containing the various mineralogical composition such as acid, lead, zinc, arsenic in its ore pulp composition, therefore containing volatile toxic and harmful in this ore pulp underflow.A diameter is now adopted to be at the bottom of the bell access concentrator pond of 1000mm, stainless steel tube and the ball valve of a ND200 is accessed below bell, then the DN150/125 short tube of the upper special facture of welding, after loading onto DN125 ball valve and corresponding pipe support, introduce high-pressure air hose, by centrifugal pump, closed discharge is carried out to underflow, the metered flow of pump is 40m3/h, in actual applications, detected by flowmeter, its emission flow can reach 50m3/h.Since coming into operation, never occurred line clogging, solidifying phenomenon of waiting indefinitely, meet Production requirement, result of use is remarkable.
The present invention has anti-clogging, safety, environmental protection, maintenance, easy to maintenancely to save time, and underflow discharge is stable, efficiency advantages of higher, has been applied in zinc hydrometallurgy system at present, Be very effective.The present invention has compared with traditional thickener underflow tapping equipment: 1) anti-clogging: whole thickener underflow tapping equipment pipeline is from coarse to fine, tapered conveying, thus increases Cemented filling pressure, and pipeline pressure is larger more backward, and slag liquid mobility is stronger.According to the difference of technological requirement, as discharged excessive cycle, part slag liquid in pipeline then can aggegation together even can blocking pipe, before unlatching centrifugal pump, first open high-pressure air hose purge conveyance conduit and dredge, and then open centrifugal pump and normally carry, the inspection socket be furnished with in addition, periodically clearing up except maintenance except being convenient to pipeline, also can be used as apex for subsequent use and using; 2) safety, environmental protection: this thickener underflow preventing clogging up device is closed pipeline conveying, avoid underflow and need the on-the-spot potential safety hazard of closing down valve and bringing because there are unrestrained liquid phenomenon post personnel in course of conveying, as the generation of toxic and harmful in unrestrained liquid process, the injury of solution scald and corrosive liquids.In operating process, post personnel only need carry out site safety and confirm, the unlatching of pump and stopping by control room manipulation, thus reduce a series of security incidents that post personnel on site's controlling equipment causes; 3) overhaul, easy to maintenancely to save time: thickener underflow exhaust system pipe head all adopts stainless steel blind plate to block, below underflow discharge supervisor valve, being provided with high-pressure air hose, when line clogging, high-pressure air hose can being opened and carry out clearing up and dredging.Pipeline only needs opening conduits termination blind plate to clear up when doing periodicmaintenance cleaning, and without the need to dismantling pipeline and valve, motor has overload protection and electric current height report chain function in addition, can at utmost stop burn-down of electric motor phenomenon, improve motor service life.Compare with conventional exhaust system, this system saves maintenance time, reduces maintenance cost; 4) underflow discharge is stable, efficiency is high: in whole underflow discharge device, and from supervisor to arm again to pump discharge arm, whole system pipeline is from coarse to fine, tapered conveying, increase Cemented filling pressure, pipeline pressure is larger more backward, slag liquid mobility is stronger, thus improves transfer efficiency.
Finally, above embodiment and accompanying drawing are only in order to illustrate technical scheme of the present invention and unrestricted, although by above-described embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (7)
1. a novel thickener underflow anti-clogging tapping equipment, it is characterized in that: described underflow discharge device mainly comprises taper feed opening, supervisor, arm, branched pipe, pump discharge arm, pump inlet arm, high-pressure air hose, motor and dirt discharge groove, wherein, taper feed opening accesses the below be arranged at the bottom of concentrator pond, taper feed opening is connected with supervisor, main valve is provided with between taper feed opening and supervisor, supervisor is connected with arm by reducing short tube, reducing short tube is provided with arm main valve, arm is divided into pump inlet arm and pump discharge arm by branched pipe, pump inlet arm is provided with blowoff valve and sewage draining exit, the below of sewage draining exit is provided with dirt discharge groove, pump discharge arm is provided with two for sending the centrifugal pump of underflow, centrifugal pump is provided with motor, be connected by centrifugal pump arm for subsequent use between two centrifugal pumps, pump discharge arm is provided with arm valve, centrifugal pump is provided with terminal valve, supervisor is provided with high-pressure air hose, and high-pressure air hose is provided with two airduct valves, and arm and branched pipe are provided with inspection socket.
2. a kind of novel thickener underflow anti-clogging tapping equipment according to claim 1, is characterized in that: described taper feed opening, supervisor are stainless steel.
3. a kind of novel thickener underflow anti-clogging tapping equipment according to claim 1, is characterized in that: one end of described supervisor adopts stainless steel blind plate to block, with bolts between the flange of rust steel blind plate and supervisor.
4. a kind of novel thickener underflow anti-clogging tapping equipment according to claim 1, is characterized in that: underflow discharge device arrives pump discharge arm again by supervisor, arm, from coarse to fine, adopts two centrifugal pumps to carry.
5. a novel thickener underflow anti-clogging discharge method, is characterized in that: described method comprises the following steps:
1) adopt closed pipeline to discharge package unit, carry out remote control by control room, the unlatching of centrifugal pump or stopping are controlled;
2) whether during underflow discharge, check and use the terminal valve of centrifugal pump and arm valve to open, open supervisor's valve, thickener underflow naturally flows into the pump housing under self gravitation effect, and notice control room remote activation centrifugal pump starts to discharge underflow;
3) flow out without slag liquid after centrifugal pump is opened, then notify that control room stops discharge immediately, first open blowoff valve slowly to open high-pressure air hose again and purge supervisor and dredge, must guard against high-pressure air hose and be in full-gear, after sewage draining exit has slag liquid to flow out, close blowoff valve and high-pressure air hose again, again notify control room discharge underflow, the slag liquid that sewage draining exit is got rid of enters centrifugal pump through dirt discharge groove and again sees off;
4) thickener underflow preventing clogging up device is furnished with the inspection socket being convenient to the cleaning of pipeline periodicity and safeguarding, when centrifugal pump inlet pipeline occurs abnormal, can be used as underflow outlet for subsequent use use, access all the other outlets and carry out underflow discharge;
5) high-pressure air hose realizes, to supervisor and the cleaning of arm and arm and dredging, when closing supervisor's valve, realizing the cleaning to branched pipe; When closing arm main valve, the cleaning to supervisor and dredging can be realized.
6. one according to claim 5 novel thickener underflow anti-clogging discharge method, is characterized in that: in step 3), and blowoff valve open degree remains on less than 45 °, avoids the excessive slag liquid of underflow impulsive force to spill dirt discharge groove.
7. a kind of novel thickener underflow anti-clogging discharge method according to claim 5, it is characterized in that: in step 1), carry out remote control by control room, to the concrete steps of the unlatching of centrifugal pump or the control of stopping be: control system adopts DCS control system, unlatching or halt instruction is sent by DCS control system, be signal of telecommunication starting relay through switch, terminal cabinet module converts, and then start or stop centrifugal pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510268500.8A CN104922947B (en) | 2015-05-25 | 2015-05-25 | Underflow anti-clogging discharge method and device for thickener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510268500.8A CN104922947B (en) | 2015-05-25 | 2015-05-25 | Underflow anti-clogging discharge method and device for thickener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104922947A true CN104922947A (en) | 2015-09-23 |
| CN104922947B CN104922947B (en) | 2017-01-11 |
Family
ID=54110568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510268500.8A Active CN104922947B (en) | 2015-05-25 | 2015-05-25 | Underflow anti-clogging discharge method and device for thickener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104922947B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754396A (en) * | 2017-11-21 | 2018-03-06 | 飞翼股份有限公司 | A kind of thickener underflow system |
| CN112619213A (en) * | 2020-12-08 | 2021-04-09 | 彝良驰宏矿业有限公司 | Discharging device of thickener |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5682733A (en) * | 1979-10-12 | 1981-07-06 | Upurafurenie Buodopurobuodonoo | Device for automatically discharging sand from sand trap |
| CN2161376Y (en) * | 1993-07-24 | 1994-04-13 | 徐州矿务局庞庄煤矿 | A eduction gear for thickener underflow |
| CN201586408U (en) * | 2009-05-08 | 2010-09-22 | 昆明理工大学 | High-concentration underflow compulsive discharge device of thickener |
| CN203220788U (en) * | 2013-05-07 | 2013-10-02 | 山东科技大学 | Underflow anti-blocking device of thickener |
-
2015
- 2015-05-25 CN CN201510268500.8A patent/CN104922947B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5682733A (en) * | 1979-10-12 | 1981-07-06 | Upurafurenie Buodopurobuodonoo | Device for automatically discharging sand from sand trap |
| CN2161376Y (en) * | 1993-07-24 | 1994-04-13 | 徐州矿务局庞庄煤矿 | A eduction gear for thickener underflow |
| CN201586408U (en) * | 2009-05-08 | 2010-09-22 | 昆明理工大学 | High-concentration underflow compulsive discharge device of thickener |
| CN203220788U (en) * | 2013-05-07 | 2013-10-02 | 山东科技大学 | Underflow anti-blocking device of thickener |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754396A (en) * | 2017-11-21 | 2018-03-06 | 飞翼股份有限公司 | A kind of thickener underflow system |
| CN112619213A (en) * | 2020-12-08 | 2021-04-09 | 彝良驰宏矿业有限公司 | Discharging device of thickener |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104922947B (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207380568U (en) | A kind of water tank or water tank anti-overflow stream automaton | |
| CN105840480B (en) | A kind of closed level Four connection in series-parallel pumping station system and its control method | |
| CN202096833U (en) | Electric automatic liquid discharge monitoring system | |
| CN104922947A (en) | Novel underflow anti-clogging discharge method and device for thickener | |
| CN105293869A (en) | Intelligent integral sludge dewatering machine room | |
| CN201650779U (en) | Submersible pump for quickly transporting oil | |
| CN203129311U (en) | Intelligent vacuum draining device | |
| CN207231730U (en) | Locomotive rain test system | |
| CN202359640U (en) | Blow-down device for industrial circulation cooling water | |
| CN207253867U (en) | A kind of sieves automatic backflushing device | |
| CN203822373U (en) | Automatic water pumping and draining device and multi-stage water pumping and draining system for adverse-slope tunnel | |
| CN201461399U (en) | Skid-mounting system for multiphase pump | |
| CN204776898U (en) | Clear stifled device of thermal power factory high pressure air water coal bunker | |
| CN208295559U (en) | A kind of supervisor's steam trap water seal breakdown alarm of blast furnace gas and automatic water-replenishing device | |
| CN205638880U (en) | Closed level four connection in series -parallel pump station system | |
| CN214297948U (en) | Lubrication system for hazardous waste conveying pipeline | |
| CN207073184U (en) | A kind of cable duct of substation drainage system | |
| CN107505094A (en) | Locomotive rain test system and operating method | |
| CN204785167U (en) | Ware is prevented letting out by pipeline | |
| CN104746551B (en) | Two filtration recoils are from removing contamination water fetching device and working method thereof | |
| CN204052067U (en) | A kind of induction system preventing curing agent coating pipeline from blocking | |
| CN202099830U (en) | Automatic water supply system for construction water | |
| CN202266829U (en) | Device for injecting nitric acid into nitric acid storage tanks, and control circuit of device for injecting nitric acid into nitric acid storage tanks | |
| CN2753417Y (en) | Power frequency pump fire control constant pressure water supply apparatus | |
| CN204921399U (en) | Valve is closed to direction changing variable sectional type of protection motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |