CN106622703A - Automatic alarm device for material blockage of three-product dense-medium cyclone - Google Patents
Automatic alarm device for material blockage of three-product dense-medium cyclone Download PDFInfo
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- CN106622703A CN106622703A CN201710138587.6A CN201710138587A CN106622703A CN 106622703 A CN106622703 A CN 106622703A CN 201710138587 A CN201710138587 A CN 201710138587A CN 106622703 A CN106622703 A CN 106622703A
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- Prior art keywords
- liquid level
- audible
- delay relay
- time
- visual annunciator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C11/00—Accessories, e.g. safety or control devices, not otherwise provided for, e.g. regulators, valves in inlet or overflow ducting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Cyclones (AREA)
Abstract
The invention discloses an automatic alarm device for material blockage of a three-product dense-medium cyclone. The automatic alarm device comprises an ultrasonic liquid-level switch and audible and visual alarms, wherein the ultrasonic liquid-level switch is electrically connected with a time-delay relay control cabinet, a time-delay relay KT1 and a time-delay relay KT2 are arranged in the time-delay relay control cabinet, the time-delay relay KT1 is electrically connected with a high-liquid-level audible and visual alarm, the time-delay relay KT2 is electrically connected with a low-liquid-level audible and visual alarm, and the high-liquid-level audible and visual alarm and the low-liquid-level audible and visual alarm are electrically connected with a centralized control PLC (programmable logic controller). A high monitoring liquid level and a low monitoring liquid level are set in a middling coal aggregate box. The automatic alarm device has the advantages that high liquid level and low liquid level triggering signals of the ultrasonic liquid-level switch can be adjusted correspondingly according to coal quality change; alarming can indicate the conditions of a position where material blockage accidents occur, so that faults can be discovered timely, effective measures such as onsite machine halting or centralized-control automatic interlocking machine halting can be taken, accident extension is avoided, accident loss is reduced and production efficiency is improved.
Description
Technical field
The present invention relates to measurement apparatus, are exactly a kind of three-product HM cyclone blocking auto-alarm devices.
Background technology
Three-product HM cyclone is the main screening installation that current coal preparation plant generally adopts, three-product HM cyclone by
One section of cyclone of cylinder type and two sections of cylinder-pyramid type, two sections of cyclone are composed in series, and are mainly used in the dressing of coal by washing of raw coal, if
There are cleaned coal, three discharge gates of middle coal and spoil, discharge gate is equipped with Material collecting box for harvesting.Raw coal and heavy-media suspension feed one section of eddy flow
Device, it is sorted after obtain head coal product and heavies product；Heavies product enter two sections of cyclones, it is sorted after obtain middle coal and cash
Stone.The sorted cleaned coal for obtaining, middle coal and spoil are discharged respectively from corresponding discharge gate.
When entering to wash in raw coal that percentage of shale content is high, spoil granularity is big, debris are more, can cause cyclone that putty accident occurs.
Cyclone putty accident is mainly one section of cyclone putty and two sections of cyclone putties, wherein, one section of cyclone putty occurs
First, two sections of junctions；Two sections of cyclone putties occur in two sections of spoil discharge gates.
There is the putty accident one, two sections of cyclone junctions, during putty in coal and spoil enter cleaned coal, cause cleaned coal
Contamination of products, affects quality of cleaned coal, while middle coal and spoil product are reduced, middle coal discharge gate discharge is reduced；Occur in two sections of rotations
Putty accident at stream device underflow opening, coal during spoil is entered during putty, ature of coal amount in impact, while cause middle product of coal to increase,
Spoil product is reduced, and middle coal discharge gate discharge increases.It can be seen that, the change of middle coal discharge gate withdrawal rate can direct reaction putty thing
Therefore, and can judge it is stifled one section or stifled two sections according to the size of amount.Middle coal withdrawal rate number by middle coal Material collecting box for harvesting liquid level become
Change is intuitively showed, that is, one, two sections of putties of high level and cyclone when liquid level, spoil discharge gate putty during normal production occur
When three kinds of states of low liquid level.
Because production needs, one, two sections of junctions of three-product HM cyclone often design that bore is less, and handling capacity is received
Limit, in addition in feed coal spoil, debris impact, and cause putty accident frequently to occur.At present coal preparation plant relies primarily on existing
Field post work, collection control work observation and judgement, aforesaid way discovery putty accident is more delayed, causes fault spread, affects just
Often production.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of three-product HM cyclone blocking auto-alarm device, should
Device by alarm signal deliver to collection control PLC, it is ensured that relevant station personnel find in time, and adopts an effective measure, scene shut down or
Collection control automatic linkage shutdown etc., it is to avoid fault spread, reduces causality loss, improve production efficiency.
To solve above-mentioned technical problem, the present invention is adopted the following technical scheme that：
A kind of three-product HM cyclone blocking auto-alarm device, including ultrasonic liquid level switch, audible-visual annunciator is described
Ultrasonic liquid level switch is arranged on the top of middle coal Material collecting box for harvesting, and ultrasonic liquid level switch arranges the high liquid of monitoring in middle coal Material collecting box for harvesting
Position, monitoring low liquid level, ultrasonic liquid level switch electrically connects with time-delay relay control cabinet, is provided with time-delay relay control cabinet and prolongs
When relay KT1, time-delay relay KT2, time-delay relay KT1 electrically connects with high level audible-visual annunciator；Time-delay relay KT2
Electrically connect with low liquid level audible-visual annunciator, high level audible-visual annunciator, low liquid level audible-visual annunciator are electrically connected respectively with collection control PLC
Connect.
Using the present invention of above-mentioned technical proposal, compared with prior art, its advantage is：
Ultrasonic liquid level switch monitoring high level, monitoring low liquid level, high and low liquid level trigger can carry out phase according to coal varitation
Should adjust.Two audible-visual annunciators correspond to respectively monitoring high level, monitoring low liquid level, and monitoring high liquid level warning represents spoil discharge
Mouth putty；Monitoring low liquid level warning represents one, two sections of junction putties；Warning can indicate that the position feelings that putty accident occurs
Condition.This device can guarantee that and find in time failure, and adopt an effective measure, and scene is shut down or collection control automatic linkage is shut down etc., it is to avoid
Fault spread, reduces causality loss, improve production efficiency.
Further, optimal technical scheme is as follows：
Described middle coal Material collecting box for harvesting is provided with mounting bracket, and mounting bracket is connected ultrasonic liquid level switch, high level acousto-optic report
Alert device, low liquid level audible-visual annunciator and time-delay relay control cabinet；High level audible-visual annunciator sets with low liquid level audible-visual annunciator
Put at the top of mounting bracket, time-delay relay control cabinet is arranged under high level audible-visual annunciator and low liquid level audible-visual annunciator
Side；Mounting bracket is connected with one end of ultrasonic wave support, and ultrasonic wave support level is arranged, and ultrasonic wave support is connected ultrasonic wave
Liquid-level switch.
By arranging mounting bracket, this apparatus structure can be made more compact, power line and holding wire are connected more between element
It is convenient；High level audible-visual annunciator is arranged on the top of mounting bracket with low liquid level audible-visual annunciator, is easier can alarm
Reception is noticeable, accident is processed in time；The setting of ultrasonic wave support, is easy to adjust ultrasonic liquid level switch installation position
Put.
The controlling switch of autonomous working is equipped with the central station of floating dock with middle coal Material collecting box for harvesting, controlling switch controls this device and enters
Enter working condition, the controlling switch that wherein central station of floating dock is arranged is realized by software programming.
Description of the drawings
The structural representation of Fig. 1 embodiment of the present invention；
Autoalarm control principle drawing in Fig. 2 Fig. 1；
Description of reference numerals：1- three-product HM cyclones；Coal discharge gate in 2-；Coal Material collecting box for harvesting in 3-；4- is monitored
High level；5- monitors low liquid level；6- ultrasonic liquid level switchs；7- ultrasonic wave supports；8- time-delay relay control cabinets；
9- high level audible-visual annunciators；10- low liquid level audible-visual annunciators；11- power lines and holding wire；12- mounting brackets；
13- collection control PLC.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment, the present invention is further illustrated.
Referring to Fig. 1, Fig. 2, a kind of three-product HM cyclone blocking auto-alarm device, by ultrasonic liquid level switch 6, sound
Light crossing-signal is constituted；Three-product HM cyclone 1 is provided with middle coal discharge gate 2, and middle coal discharge gate 2 surpasses to the middle discharge of coal Material collecting box for harvesting 3
Sound wave liquid level switch 6 is arranged on the top of middle coal Material collecting box for harvesting 3, and it is high that ultrasonic liquid level switch 6 arranges monitoring in middle coal Material collecting box for harvesting 3
Liquid level 4, monitoring low liquid level 5, ultrasonic liquid level switch 6 is electrically connected with time-delay relay control cabinet 8, time-delay relay control cabinet 8
Time-delay relay KT1, time-delay relay KT2 are inside provided with, time-delay relay KT1 is electrically connected with high level audible-visual annunciator 9；Time delay
Relay KT2 is electrically connected with low liquid level audible-visual annunciator 10, and high level audible-visual annunciator 9, low liquid level audible-visual annunciator 10 are distinguished
Electrically connect with collection control PLC13.
Ultrasonic liquid level switch 6 is arranged on the side of coal Material collecting box for harvesting 3 top in three-product cyclone, can consult supersonic liquid level and open
Close 6 specifications to be installed on request, if box sizes are little, liquid level relay also may be selected.Because of liquid level in process of production
There is unstability, liquid level triggers ultrasonic liquid level switch 6 as monitoring high level 4 when taking slightly above normal production；Take Zhong Meiji
The discharge gate center line overlapping positions of hopper 3 trigger ultrasonic liquid level switch 6 as monitoring low liquid level 5.
Time-delay relay KT1 and time-delay relay KT2, carries out delay adjustmentses, delay duration to high and low liquid level signal respectively
Set according to needs of production, it is ensured that mask instantaneous high or low liquid level signal, the signal stabilization for delivering to audible-visual annunciator can
Lean on.
Trigger is transported to time-delay relay by normally opened contact, passes through normally opened through the signal of time-delay relay process
Point is transported to audible-visual annunciator and collection control PLC13.Collection control PLC13 can need to process trigger, such as automatic linkage according to production
Shut down, to avoid fault spread, reduce causality loss, improve production efficiency.
Middle coal Material collecting box for harvesting 3 is provided with mounting bracket 12, and mounting bracket 12 is connected ultrasonic liquid level switch 6, high level sound
Light crossing-signal 9, low liquid level audible-visual annunciator 10 and time-delay relay control cabinet 8；High level audible-visual annunciator 9 and low liquid level acousto-optic
Alarm 10 is arranged on the top of mounting bracket 12, and time-delay relay control cabinet 8 is arranged on high level audible-visual annunciator 9 with low liquid
The lower section of position audible-visual annunciator 10；Mounting bracket 12 is connected with one end of ultrasonic wave support 7, and ultrasonic wave support 7 is horizontally disposed with, ultrasound
Ripple support 7 is connected ultrasonic liquid level switch 6.
By arranging mounting bracket 12, this apparatus structure can be made more compact, power line and holding wire are connected between element
11 are more convenient；High level audible-visual annunciator 9 is arranged on the top of mounting bracket 12 with low liquid level audible-visual annunciator 10, can make police
Report is easier to be noticeable reception, and accident is processed in time；The setting of ultrasonic wave support 7, is easy to regulation supersonic liquid level to open
Close 6 installation site.
The course of work of this device is as follows：
（1）When 1 spoil discharge gate putty of three-product HM cyclone, the middle liquid level of coal Material collecting box for harvesting 3 exceedes normal position, ultrasonic wave
Liquid-level switch 6 sends high liquid level warning signal, and K1 is closed, when time-delay relay KT1 setting durations are reached, time-delay relay
KT1 normally opened contacts are closed, and high liquid level warning signal delivers to audible-visual annunciator and collection control PLC13, sends alarm.
（2）When 1 one, two sections of junction putties of three-product HM cyclone, the middle liquid level of coal Material collecting box for harvesting 3 is less than in discharge gate
During heart line, ultrasonic liquid level switch 6 sends low liquid level warning, and K2 closures are low when time-delay relay KT2 setting durations are reached
Liquid level warning signal delivers to audible-visual annunciator and collection control PLC13, sends alarm.
The ultrasonic liquid level switch 6 of the present embodiment monitors high level 4, the high and low liquid level trigger of monitoring low liquid level 5 can
Adjusted accordingly according to coal varitation.Two audible-visual annunciators correspond to respectively monitoring high level 4, monitoring low liquid level 5, and monitoring is high
Liquid level 4 is reported to the police and represents spoil discharge gate putty；Monitoring high level 4 is reported to the police and represents one, two sections of junction putties；Warning can indicate that
There is the situation of putty accident.
The foregoing is only the specific embodiment of the present invention, but the protection not limited to this of the present invention, any this technology neck
The technical staff in domain the thinkable change being equal to the technical program technical characteristic or replacement, all cover the present invention guarantor
Within the scope of shield.
Claims (3)
1. a kind of three-product HM cyclone blocking auto-alarm device, including ultrasonic liquid level switch, audible-visual annunciator, it is special
Levy and be：Described ultrasonic liquid level switch is arranged on the top of middle coal Material collecting box for harvesting, and ultrasonic liquid level switch is in middle coal Material collecting box for harvesting
Interior to arrange monitoring high level, monitoring low liquid level, ultrasonic liquid level switch is electrically connected with time-delay relay control cabinet, time-delay relay
Time-delay relay KT1, time-delay relay KT2 are provided with control cabinet, time-delay relay KT1 is electrically connected with high level audible-visual annunciator
Connect；Time-delay relay KT2 is electrically connected with low liquid level audible-visual annunciator, high level audible-visual annunciator, low liquid level audible-visual annunciator point
Do not electrically connect with collection control PLC.
2. three-product HM cyclone blocking auto-alarm device according to claim 1, it is characterised in that：In described
Coal Material collecting box for harvesting is provided with mounting bracket, and mounting bracket is connected ultrasonic liquid level switch, high level audible-visual annunciator, low liquid level sound
Light crossing-signal and time-delay relay control cabinet；High level audible-visual annunciator is arranged on mounting bracket with low liquid level audible-visual annunciator
Top, time-delay relay control cabinet is arranged on high level audible-visual annunciator with low liquid level audible-visual annunciator lower section；Mounting bracket with
One end connection of ultrasonic wave support, ultrasonic wave support level is arranged, and ultrasonic wave support is connected ultrasonic liquid level switch.
3. three-product HM cyclone blocking auto-alarm device according to claim 1, it is characterised in that：In central station of floating dock
With the controlling switch that middle coal Material collecting box for harvesting is equipped with autonomous working, controlling switch controls this device and enters working condition, wherein collection control
The controlling switch that room is arranged is realized by software programming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710138587.6A CN106622703A (en) | 2017-03-09 | 2017-03-09 | Automatic alarm device for material blockage of three-product dense-medium cyclone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710138587.6A CN106622703A (en) | 2017-03-09 | 2017-03-09 | Automatic alarm device for material blockage of three-product dense-medium cyclone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106622703A true CN106622703A (en) | 2017-05-10 |
Family
ID=58848223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710138587.6A Pending CN106622703A (en) | 2017-03-09 | 2017-03-09 | Automatic alarm device for material blockage of three-product dense-medium cyclone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106622703A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304853A (en) * | 2018-09-04 | 2019-02-05 | 山东霞光集团有限公司 | A kind of wood moulding extruder full-automatic alarm controller and Anti-blockage mechanism |
Citations (8)
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|---|---|---|---|---|
| GB2025623A (en) * | 1978-06-06 | 1980-01-23 | Energoinvest | Liquid level sensing device |
| CN2117593U (en) * | 1992-03-14 | 1992-09-30 | 达县氮肥厂 | Liquid level gauge with electric contact |
| CN2728990Y (en) * | 2003-12-22 | 2005-09-28 | 刘钦福 | Material ash level controller |
| JP2011122877A (en) * | 2009-12-09 | 2011-06-23 | Toshiba Mach Co Ltd | Display device of liquid level warning light in construction machine or the like |
| CN203497485U (en) * | 2013-09-17 | 2014-03-26 | 雅化集团三台化工有限公司 | Ammonium nitrate solution storage tank liquid level detection apparatus |
| CN204841990U (en) * | 2015-07-21 | 2015-12-09 | 贵州水城矿业股份有限公司二塘选煤厂 | Three products of non -pressure feed heavily are situated between swirler and stop up alarm device |
| CN205348289U (en) * | 2015-12-19 | 2016-06-29 | 大连大孤山污水处理有限公司 | Water tank automatic water supply device |
| CN206535672U (en) * | 2017-03-09 | 2017-10-03 | 唐山开滦林西矿业有限公司 | Three-product HM cyclone blocking auto-alarm device |
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2017
- 2017-03-09 CN CN201710138587.6A patent/CN106622703A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2025623A (en) * | 1978-06-06 | 1980-01-23 | Energoinvest | Liquid level sensing device |
| CN2117593U (en) * | 1992-03-14 | 1992-09-30 | 达县氮肥厂 | Liquid level gauge with electric contact |
| CN2728990Y (en) * | 2003-12-22 | 2005-09-28 | 刘钦福 | Material ash level controller |
| JP2011122877A (en) * | 2009-12-09 | 2011-06-23 | Toshiba Mach Co Ltd | Display device of liquid level warning light in construction machine or the like |
| CN203497485U (en) * | 2013-09-17 | 2014-03-26 | 雅化集团三台化工有限公司 | Ammonium nitrate solution storage tank liquid level detection apparatus |
| CN204841990U (en) * | 2015-07-21 | 2015-12-09 | 贵州水城矿业股份有限公司二塘选煤厂 | Three products of non -pressure feed heavily are situated between swirler and stop up alarm device |
| CN205348289U (en) * | 2015-12-19 | 2016-06-29 | 大连大孤山污水处理有限公司 | Water tank automatic water supply device |
| CN206535672U (en) * | 2017-03-09 | 2017-10-03 | 唐山开滦林西矿业有限公司 | Three-product HM cyclone blocking auto-alarm device |
Non-Patent Citations (1)
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|---|
| 陆徳民 等: "《石油化工自动控制设计手册》", 31 January 2000, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304853A (en) * | 2018-09-04 | 2019-02-05 | 山东霞光集团有限公司 | A kind of wood moulding extruder full-automatic alarm controller and Anti-blockage mechanism |
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