CN103706162B - Automatic filtering device for low-temperature coal tar and working method of automatic filtering device - Google Patents
Automatic filtering device for low-temperature coal tar and working method of automatic filtering device Download PDFInfo
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- CN103706162B CN103706162B CN201310742014.6A CN201310742014A CN103706162B CN 103706162 B CN103706162 B CN 103706162B CN 201310742014 A CN201310742014 A CN 201310742014A CN 103706162 B CN103706162 B CN 103706162B
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Abstract
The invention discloses an automatic filtering device for low-temperature coal tar and a working method of the automatic filtering device. The automatic filtering device comprises a filter, a filtering system, a cleaning system, a slag discharging system and a control system, wherein the filtering system comprises a filter, a stock solution tank, a stock solution inlet valve, a clean liquid tank, a clean liquid outlet valve, a gas discharging valve and a waste gas tank; the cleaning system comprises a filter, a cleaning liquid storage tank, a cleaning liquid conveying pump, a cleaning liquid inlet valve, a cleaning liquid outlet valve and a cleaning liquid recycling tank; the slag discharging system comprises a filter, a slag discharging valve and a filtered slag recycling tank. By the adoption of a cylinder for controlling a slag scraping piston to move up and down to realize auxiliary slag discharging, the automatic filtering device has the advantages that a backwashing step and an immersing step which are executed after every filtering are eliminated, the filtering period is greatly shortened, and the filtering efficiency is improved; meanwhile, the using amount of cleaning liquid is lowered, waste of raw materials and polluted oil are avoided, and requirements on energy conservation and environmental friendliness are met.
Description
Technical field
The present invention relates to a kind for the treatment of technology of coalite tar, mainly a kind of automatic filtering unit of coalite tar and method of work thereof.
Background technology
Coalite tar is the product of coal destructive distillation when temperature is lower in coke making process, its composition is very complicated, and wherein the content of hydrocarbon compound is 45% ~ 70%, and the content of phenolic compound is 15% ~ 30%, the content of pitch is 10% ~ 15%, also containing other a small amount of materials.Current coalite tar is mainly used in the production of liquid fuel and chemicals, but due to its solid impurity such as coal dust, coke powder content higher, processing coalite tar before, need process it, to reduce the solids content in raw material; At present, more advanced processing method adopts multiple layer metal silk screen sintering filter core to filter coalite tar, to remove the most of solid impurity in raw material, but there is following shortcoming and defect:
1, filtering traffic is little, and filter cycle is long, and filter efficiency is low;
2, all need to carry out backwash to filter core after each filtration, the consumption of cleaning fluid is large, and can produce the large sump oil of a large amount of solid contents, has both caused the loss of feedstock oil, and has increased again the difficulty of post processing;
3, automaticity is low, cannot realize continued operation.
Summary of the invention
The shortcoming and defect part existed in above-mentioned technology, the object of the invention is automatic filtering unit and the method for work thereof that will design a kind of coalite tar, filter effect can be ensured, filter cycle can be shortened again, particularly by every turn filter after backwash and soaking technology change to periodic cleaning, greatly reduce the consumption of cleaning fluid and the generation of sump oil, plant automation degree is high simultaneously, can realize continued operation.
To achieve these goals, technical scheme of the present invention is as follows:
An automatic filtering unit for coalite tar, mainly comprises filter, filtration system, purging system, dreg removing system, control system;
Described filter comprises filter tank body, wedge shaped wires winded filtering core, stoste entrance, cylinder, exhaust outlet, upper pressure tap, scrapes slag piston, lower pressure tap, rinse liquid outlet, slag-drip opening, filter washing water inlet, purified liquor outlet, ball-cock assembly; Described filter tank body is connected with wedge shaped wires winded filtering core, stoste entrance, cylinder, exhaust outlet, upper pressure tap, lower pressure tap, rinse liquid outlet, slag-drip opening, filter washing water inlet, purified liquor outlet, ball-cock assembly respectively; Described slag piston of scraping connects cylinder and wedge shaped wires winded filtering core respectively;
Described filtration system comprises filter, original fluid container, stoste inlet valve, stoste entrance, Clear liquid tank, purified liquor outlet valve, purified liquor outlet, exhaust outlet, drain tap, gas tank; Described original fluid container outlet connects stoste inlet valve, and the outlet of described stoste inlet valve connects stoste entrance, and described stoste entrance connects filter; Described Clear liquid tank entrance connects purified liquor outlet valve, and described purified liquor outlet valve connects purified liquor outlet, and described purified liquor outlet connects filter; Described gas tank entrance connects drain tap outlet, and described drain tap entrance connects exhaust outlet, and described exhaust outlet connects filter;
Described purging system comprises filter, cleaning fluid storage tank, cleaning fluid delivery pump, filter washing water inlet valve, filter washing water inlet, rinse liquid outlet, rinse liquid outlet valve, cleaning fluid recycling can; Described cleaning fluid outlet connects cleaning fluid delivery pump entrance, and described cleaning fluid delivery pump outlet connects filter washing water inlet valve, and described filter washing water inlet connects filter; Described filter connects rinse liquid outlet, and described rinse liquid outlet connects rinse liquid outlet valve, and described rinse liquid outlet valve connects cleaning fluid recycling can;
Described dreg removing system comprises filter, slag-drip opening, slag-discharging valve and filter residue recycling can; Described filter connects slag-drip opening outlet, and described slag-drip opening outlet connects slag-discharging valve, and described slag-discharging valve connects filter residue recycling can;
Described control system comprises filter, upper pressure tap, upper differential pressure transmitter device, lower pressure tap and lower differential pressure transmitter device; Described upper differential pressure transmitter device connects upper pressure tap, and described upper pressure tap connects filter; Described lower differential pressure transmitter device connects lower pressure tap, and described lower pressure tap connects filter; Described filtration system, purging system, dreg removing system, control system use 1 filter jointly.
Wedge shaped wires winded filtering core of the present invention is the ceramic element adopting band outer groove.
Wedge shaped wires winded filtering core optimum position of the present invention is: annular groove opening part center line and the alignment of purified liquor outlet center line.
The optimum position of lower pressure tap of the present invention is that the mirror image of purified liquor outlet is coaxial.
The Optimum clearance scraping slag piston and wedge shaped wires winded filtering core inner surface of the present invention is 0.07mm.
Cylinder optimum position of the present invention degree be in cylinder circular piston bar and circular wedge shaped wires winded filtering core coaxial.
The optimum position of stoste entrance of the present invention, upper pressure tap is stoste entrance, upper pressure tap center line higher than wedge shaped wires winded filtering core axially cross dimensions be 800mm.
Ball-cock assembly position of the present invention must not axially section, upper pressure tap, exhaust outlet, cylindrical shell, cylinder be interfered with wedge shaped wires winded filtering core.
A method of work for the automatic filtering unit of coalite tar, comprises the following steps:
A, topping up are vented: first close slag-discharging valve, filter washing water inlet valve, rinse liquid outlet valve, purified liquor outlet valve, cylinders retract is in home position; Detect ball-cock assembly, upper differential pressure transmitter device and lower differential pressure transmitter device more whether sensitive, safe, reliable and meet initialized normal operating condition; Its two, start the force (forcing) pump in original fluid container, stoste be pressurized to 0.5MPa and prepare to topping up in filter; Its three, when stoste reaches 0.5MPa, after opening drain tap first completely, then stoste inlet valve is opened; Now enter filter tank body in by pipeline through stoste inlet valve and stoste entrance through the stoste of pressurization in original fluid container, the gas in filter tank body after exhaust outlet, drain tap are discharged into and carry out harmless treatment in gas tank, then discharges in air; When the liquid level that stoste is filled with filter inside does not reach ball-cock assembly closedown height, topping up exhaust condition remains unchanged, and continues the state of being exhausted; When the liquid level that stoste is filled with filter inside reaches ball-cock assembly closedown height, close drain tap immediately, open purified liquor outlet valve; Now, topping up exhaust terminates, and enters the filtration treatment stage;
B, filtration treatment: after steps A is run, purified liquor outlet valve and stoste inlet valve continue to open, and continue to be filled with stoste in filter tank body, open the duty of upper differential pressure transmitter device and lower differential pressure transmitter device on-line checkingi, judgement simultaneously; When stoste flows through wedge shaped wires winded filtering core, upper differential pressure transmitter device and lower differential pressure transmitter device are provided with setting value 0.2MPa, if be less than setting value 0.2MPa, filter keeps filtration condition and continuous firing; Now, solid impurity or particle are intercepted at wedge shaped wires winded filtering core inner surface, and the liquid meeting technological requirement arrives wedge shaped wires winded filtering core annular groove place through wedge shaped wires winded filtering core, the liquid after filtration through purified liquor outlet, purified liquor outlet Valved discharge in Clear liquid tank; When upper differential pressure transmitter device and lower differential pressure transmitter device are more than or equal to setting pressure difference 0.2MPa, filter stops filtration work, closes stoste inlet valve simultaneously, enters and scrape the Slag treatment stage;
C, scrape Slag treatment: through step B detect setting pressure difference be more than or equal to 0.2MPa time, close stoste inlet valve, open cylinder and come and go working procedure, make cylinder piston rod energy auto-extending or retraction, scrape slag piston and also follow piston rod and move back and forth once; At this moment, solid impurity or particle can deposit to filter tank base, and scrape slag piston and be retracted into home position, purified liquor outlet valve closing, each actuator comes back to init state; Now, device comes back to steps A and starts working, and goes round and begins again;
D, deslagging process: when the solid impurity after step C process or particle deposition reach maximum collection quantity of slag 25L or 80 minutes deslagging time of setting to filter tank base, filter can in office when section opens slag-discharging valve automatically, and slag slurry is disposed to filter residue recycling can by slag-drip opening through slag-discharging valve;
E, periodic cleaning: when filter runs 120 days, need clean filter, during cleaning, close stoste inlet valve, purified liquor outlet valve, drain tap, rinse liquid outlet valve, slag-discharging valve, open filter washing water inlet valve, start cleaning fluid delivery pump, cleaning fluid is filled with in filter tank body, be full of rear stopping cleaning fluid delivery pump, close filter washing water inlet valve, soak after 3 minutes, start and scrape slag piston, it is made to move up and down 5 minutes, open rinse liquid outlet valve again, filter washing water inlet valve, open cleaning fluid delivery pump, cleaning fluid in cleaning fluid delivery pump feeding filter and the cleaning fluid in original filter are together drained in cleaning fluid recycling can, when plant running minute, close cleaning fluid delivery pump, filter washing water inlet valve, open drain tap, the cleaning fluid in filter is made to rely on pressure itself difference to flow in cleaning fluid recycling can again.
Compared with prior art, the present invention has following beneficial effect:
1, the coalite tar adopting wedge shaped wires winded filtering core larger to viscosity due to the present invention filters, and improves the rate of filtration to a certain extent, the solid impurity effectively in removing coalite tar, and not easily blocks, and is easy to cleaning, long service life.
What 2, adopt cylinder to control to scrape slag piston due to the present invention moves up and down auxiliary deslagging, eliminate the backwash after each filtration and soaking step, substantially reduce filter cycle, improve filter efficiency, decrease the consumption of cleaning fluid simultaneously, avoid the waste of raw material and the generation of sump oil, meet energy-conserving and environment-protective requirement.
3, because the present invention adopts the operation of Process Control System to device be made up of automatic valve and instrumentation etc. to control, automaticity is high, reduces manpower operation's cost, can realize continued operation when multiple stage is used in conjunction.
Accompanying drawing explanation
The present invention has 9 width accompanying drawings.
Fig. 1 is coalite tar automatic filtering unit structural representation.
Fig. 2 is filter schematic diagram.
Fig. 3 is purging system structural representation.
Fig. 4 is filtration system structural representation.
Fig. 5 is dreg removing system structural representation.
Fig. 6 is Control system architecture schematic diagram.
Fig. 7 is wedge shaped wires winded filtering core complete section front view.
Fig. 8 is the top view of Fig. 7.
Fig. 9 is the flow chart of coalite tar automatic filtering unit.
In figure: 1, cleaning fluid storage tank, 2, cleaning fluid delivery pump, 3, filter washing water inlet valve, 4, slag-discharging valve, 5, filter residue recycling can, 6, rinse liquid outlet valve, 7, cleaning fluid recycling can, 8, purified liquor outlet valve, 9, filter, 10, stoste inlet valve, 11, drain tap, 12, filter tank body, 13, wedge shaped wires winded filtering core, 14, stoste entrance, 15, cylinder, 16, exhaust outlet, 17, upper pressure tap, 18, scrape slag piston, 19, lower pressure tap, 20, rinse liquid outlet, 21, slag-drip opening, 22, filter washing water inlet, 23, purified liquor outlet, 24, original fluid container, 25, Clear liquid tank, 26, gas tank, 27, upper differential pressure transmitter device, 28, lower differential pressure transmitter device, 29, ball-cock assembly, 30, annular groove, 31, upper surface, 32, cylindrical shell.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in figs 1-9, a kind of automatic filtering unit of coalite tar, mainly comprises filter 9, filtration system, purging system, dreg removing system, control system;
Described filter 9 comprises filter tank body 12, wedge shaped wires winded filtering core 13, stoste entrance 14, cylinder 15, exhaust outlet 16, upper pressure tap 17, scrapes slag piston 18, lower pressure tap 19, rinse liquid outlet 20, slag-drip opening 21, filter washing water inlet 22, purified liquor outlet 23, ball-cock assembly 29; Described filter tank body 12 is connected with wedge shaped wires winded filtering core 13, stoste entrance 14, cylinder 15, exhaust outlet 16, upper pressure tap 17, lower pressure tap 19, rinse liquid outlet 20, slag-drip opening 21, filter washing water inlet 22, purified liquor outlet 23, ball-cock assembly 29 respectively; Described slag piston 18 of scraping connects cylinder 15 and wedge shaped wires winded filtering core 13 respectively;
Described filtration system comprises filter 9, original fluid container 24, stoste inlet valve 10, stoste entrance 14, Clear liquid tank 25, purified liquor outlet valve 6, purified liquor outlet 23, exhaust outlet 16, drain tap 11, gas tank 26; Described original fluid container 24 exports and connects stoste inlet valve 10, and the outlet of described stoste inlet valve 10 connects stoste entrance 14, and described stoste entrance 14 connects filter; Described Clear liquid tank 25 entrance connects purified liquor outlet valve 8, and described purified liquor outlet valve 8 connects purified liquor outlet 23, and described purified liquor outlet 23 connects filter 9; Described gas tank 26 entrance connects drain tap 11 and exports, and described drain tap 11 entrance connects exhaust outlet 16, and described exhaust outlet 16 connects filter;
Described purging system comprises filter 9, cleaning fluid storage tank 1, cleaning fluid delivery pump 2, filter washing water inlet valve 3, filter washing water inlet 22, rinse liquid outlet 20, rinse liquid outlet valve 6, cleaning fluid recycling can 7; Described cleaning fluid storage tank 1 exports and connects cleaning fluid delivery pump 2 entrance, and described cleaning fluid delivery pump 2 exports and connects filter washing water inlet valve 3, and described filter washing water inlet 22 connects filter 9; Described filter 9 connects rinse liquid outlet 20, and described rinse liquid outlet 20 connects rinse liquid outlet valve 6, and described rinse liquid outlet valve 6 connects cleaning fluid recycling can 7;
Described dreg removing system comprises filter 9, slag-drip opening 21, slag-discharging valve 4 and filter residue recycling can 5; Described filter 9 connects slag-drip opening 21 and exports, and described slag-drip opening 21 exports and connects slag-discharging valve 4, and described slag-discharging valve 4 connects filter residue recycling can 5;
Described control system comprises filter 9, upper pressure tap 17, upper differential pressure transmitter device 27, lower pressure tap 19 and lower differential pressure transmitter device 28; Described upper differential pressure transmitter device 27 connects upper pressure tap 17, and described upper pressure tap 17 connects filter 9; Described lower differential pressure transmitter device 28 connects lower pressure tap 19, and described lower pressure tap 19 connects filter 9; Described filtration system, purging system, dreg removing system, control system use 1 filter 9 jointly.
Wedge shaped wires winded filtering core 13 of the present invention is the ceramic elements adopting band outer groove 30; Described wedge shaped wires winded filtering core 13 optimum position is: annular groove 30 opening part center line and the alignment of purified liquor outlet 23 center line; The optimum position of described lower pressure tap 19 is that the mirror image of purified liquor outlet is coaxial; The described Optimum clearance scraping slag piston 18 and wedge shaped wires winded filtering core 13 inner surface is 0.07mm; Described cylinder 15 optimum position degree be in cylinder 15 circular piston bar and circular wedge shaped wires winded filtering core 13 coaxial; Described stoste entrance 14, the optimum position of upper pressure tap 17 are stoste entrances 14, upper pressure tap 17 center line higher than wedge shaped wires winded filtering core 13 axially section 31 be of a size of 800mm; Described ball-cock assembly 29 position must not axially section 31, upper pressure tap 17, exhaust outlet 16, cylindrical shell 32, cylinder 15 be interfered with wedge shaped wires winded filtering core 13.
A method of work for the automatic filtering unit of coalite tar, comprises the following steps:
A, topping up are vented: first close slag-discharging valve 4, filter washing water inlet valve 3, rinse liquid outlet valve 6, purified liquor outlet valve 8, cylinders retract is in home position; Detect ball-cock assembly 29, upper differential pressure transmitter device 27 and lower differential pressure transmitter device 28 more whether sensitive, safe, reliable and meet initialized normal operating condition; Its two, start the force (forcing) pump of in original fluid container 24, stoste be pressurized to 0.5MPa and prepare 9 topping ups in filter; Its three, when stoste reaches 0.5MPa, after opening drain tap 11 first completely, then stoste inlet valve 10 is opened; Now enter filter tank body 12 in by pipeline through stoste inlet valve 10 and stoste entrance 14 through the stoste of pressurization in original fluid container 24, gas in filter tank body 12 after exhaust outlet 16, drain tap 11 are discharged into and carry out harmless treatment in gas tank 26, then discharges in air; When the liquid level that stoste is filled with filter 9 inside does not reach ball-cock assembly 29 closedown height, topping up exhaust condition remains unchanged, and continues the state of being exhausted; When the liquid level that stoste is filled with filter 9 inside reaches ball-cock assembly 29 closedown height, close drain tap 11 immediately, open purified liquor outlet valve 8; Now, topping up exhaust terminates, and enters the filtration treatment stage;
B, filtration treatment: after steps A is run, purified liquor outlet valve 8 and stoste inlet valve 10 continue to open, and continue to be filled with stoste in filter tank body 12, open the duty of upper differential pressure transmitter device 27 and lower differential pressure transmitter device 28 on-line checkingi, judgement simultaneously; When stoste flows through wedge shaped wires winded filtering core 13, upper differential pressure transmitter device 27 and lower differential pressure transmitter device 28 are provided with setting value 0.2MPa, if be less than setting value 0.2MPa, filter 9 keeps filtration condition and continuous firing; Now, solid impurity or particle are intercepted at wedge shaped wires winded filtering core 13 inner surface, and the liquid meeting technological requirement arrives wedge shaped wires winded filtering core annular groove 30 place through wedge shaped wires winded filtering core 13, the liquid after filtration is discharged in Clear liquid tank 25 through purified liquor outlet 23, purified liquor outlet valve 8; When upper differential pressure transmitter device 27 and lower differential pressure transmitter device 28 are more than or equal to setting pressure difference 0.2MPa, filter 9 stops filtration work, closes stoste inlet valve 10 simultaneously, enters and scrape the Slag treatment stage;
C, scrape Slag treatment: through step B detect setting pressure difference be more than or equal to 0.2MPa time, close stoste inlet valve 10, open cylinder and come and go working procedure, make cylinder 15 piston rod energy auto-extending or retraction, scrape slag piston 18 and also follow piston rod reciprocating motion once; At this moment, solid impurity or particle can deposit to bottom filter tank body 12, and scrape slag piston 18 and be retracted into home position, purified liquor outlet valve 8 is closed, and each actuator comes back to init state; Now, device comes back to steps A and starts working, and goes round and begins again;
D, deslagging process: when reaching maximum collection quantity of slag 25L or 80 minutes deslagging time of setting bottom the solid impurity after step C process or particle deposition to filter tank body 12, filter can in office when section opens slag-discharging valve 4 automatically, and slag slurry is disposed to filter residue recycling can 5 by slag-drip opening 21 through slag-discharging valve 4;
E, periodic cleaning: when filter 9 runs 120 days, need clean filter 9, during cleaning, close stoste inlet valve 10, purified liquor outlet valve 8, drain tap 11, rinse liquid outlet valve 6, slag-discharging valve 4, open filter washing water inlet valve 3, start cleaning fluid delivery pump 2, cleaning fluid is filled with in filter tank body 12, be full of rear stopping cleaning fluid delivery pump 2, close filter washing water inlet valve 3, soak after 3 minutes, start and scrape slag piston 18, it is made to move up and down 5 minutes, open rinse liquid outlet valve 6 again, filter washing water inlet valve 3, open cleaning fluid delivery pump 2, cleaning fluid delivery pump 2 is sent into the cleaning fluid in filter and the cleaning fluid in original filter together drains in cleaning fluid recycling can 7, when plant running 3 minutes, close cleaning fluid delivery pump 2, filter washing water inlet valve 3, open drain tap 11, the cleaning fluid in filter is made to rely on pressure itself difference to flow in cleaning fluid recycling can 7 again.
Specific embodiments of the invention shown in Fig. 1, filter medium to be dregginess be 0.07% coalite tar, dielectric viscosity is 8.5cP, and the treating capacity of filter is 10m
3/ h; Coal tar after filtration reaches the requirement of following process equipment to solids content.
Claims (7)
1. an automatic filtering unit for coalite tar, is characterized in that: mainly comprise filter (9), filtration system, purging system, dreg removing system, control system;
Described filter (9) comprises filter tank body (12), wedge shaped wires winded filtering core (13), stoste entrance (14), cylinder (15), exhaust outlet (16), upper pressure tap (17), scrapes slag piston (18), lower pressure tap (19), rinse liquid outlet (20), slag-drip opening (21), filter washing water inlet (22), purified liquor outlet (23), ball-cock assembly (29); Described filter tank body (12) is connected with wedge shaped wires winded filtering core (13), stoste entrance (14), cylinder (15), exhaust outlet (16), upper pressure tap (17), lower pressure tap (19), rinse liquid outlet (20), slag-drip opening (21), filter washing water inlet (22), purified liquor outlet (23), ball-cock assembly (29) respectively; Described slag piston (18) of scraping connects cylinder (15) and wedge shaped wires winded filtering core (13) respectively;
Described filtration system comprises filter (9), original fluid container (24), stoste inlet valve (10), stoste entrance (14), Clear liquid tank (25), purified liquor outlet valve (8), purified liquor outlet (23), exhaust outlet (16), drain tap (11), gas tank (26); Described original fluid container (24) outlet connects stoste inlet valve (10), the outlet of described stoste inlet valve (10) connects stoste entrance (14), and described stoste entrance (14) connects filter; Described Clear liquid tank (25) entrance connects purified liquor outlet valve (8), described purified liquor outlet valve (8) connects purified liquor outlet (23), and described purified liquor outlet (23) connects filter (9); Described gas tank (26) entrance connects drain tap (11) outlet, and described drain tap (11) entrance connects exhaust outlet (16), and described exhaust outlet (16) connects filter;
Described purging system comprises filter (9), cleaning fluid storage tank (1), cleaning fluid delivery pump (2), filter washing water inlet valve (3), filter washing water inlet (22), rinse liquid outlet (20), rinse liquid outlet valve (6), cleaning fluid recycling can (7); Described cleaning fluid storage tank (1) outlet connects cleaning fluid delivery pump (2) entrance, described cleaning fluid delivery pump (2) outlet connects filter washing water inlet valve (3), and described filter washing water inlet (22) connects filter (9); Described filter (9) connects rinse liquid outlet (20), described rinse liquid outlet (20) connects rinse liquid outlet valve (6), and described rinse liquid outlet valve (6) connects cleaning fluid recycling can (7);
Described dreg removing system comprises filter (9), slag-drip opening (21), slag-discharging valve (4) and filter residue recycling can (5); Described filter (9) connects slag-drip opening (21) outlet, described slag-drip opening (21) outlet connects slag-discharging valve (4), and described slag-discharging valve (4) connects filter residue recycling can (5);
Described control system comprises filter (9), upper pressure tap (17), upper differential pressure transmitter device (27), lower pressure tap (19) and lower differential pressure transmitter device (28); Pressure tap (17) in described upper differential pressure transmitter device (27) connection, described upper pressure tap (17) connects filter (9); Described lower differential pressure transmitter device (28) connects lower pressure tap (19), and described lower pressure tap (19) connects filter (9); Described filtration system, purging system, dreg removing system, control system use 1 filter (9) jointly.
2. the automatic filtering unit of a kind of coalite tar according to claim 1, is characterized in that: described wedge shaped wires winded filtering core (13) is the ceramic element adopting band outer groove (30).
3. the automatic filtering unit of a kind of coalite tar according to claim 1, is characterized in that: the optimum position of described lower pressure tap (19) is that the mirror image of purified liquor outlet (23) is coaxial.
4. the automatic filtering unit of a kind of coalite tar according to claim 1, is characterized in that: the described Optimum clearance scraping slag piston (18) and wedge shaped wires winded filtering core (13) inner surface is 0.07mm.
5. the automatic filtering unit of a kind of coalite tar according to claim 1, is characterized in that: described cylinder (15) optimum position degree is that the middle circular piston bar of cylinder (15) and circular wedge shaped wires winded filtering core (13) are coaxial.
6. the automatic filtering unit of a kind of coalite tar according to claim 1, is characterized in that: the optimum position of described stoste entrance (14), upper pressure tap (17) is stoste entrance (14), upper pressure tap (17) center line higher than wedge shaped wires winded filtering core (13) axially section (31) be of a size of 800mm.
7. the automatic filtering unit of a kind of coalite tar according to claim 1, is characterized in that: described ball-cock assembly (29) position must not axially section (31), upper pressure tap (17), exhaust outlet (16), cylindrical shell (32), cylinder (15) be interfered with wedge shaped wires winded filtering core (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310742014.6A CN103706162B (en) | 2013-12-30 | 2013-12-30 | Automatic filtering device for low-temperature coal tar and working method of automatic filtering device |
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| CN201310742014.6A CN103706162B (en) | 2013-12-30 | 2013-12-30 | Automatic filtering device for low-temperature coal tar and working method of automatic filtering device |
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| CN103706162B true CN103706162B (en) | 2015-06-10 |
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| CN104117238B (en) * | 2014-08-07 | 2016-02-17 | 偃师然合生物材料有限公司 | A kind of filtration system for glucosides class high-viscosity material |
| CN105435509A (en) * | 2014-09-30 | 2016-03-30 | 上海安赐环保科技股份有限公司 | Scraping plate filtering device applied to high-temperature coal tar purification system, purification system and purification process |
| JP6122887B2 (en) * | 2015-02-18 | 2017-04-26 | 株式会社日進製作所 | Sludge dewatering and solidification equipment |
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| CN201643829U (en) * | 2010-03-17 | 2010-11-24 | 上海宝钢化工有限公司 | Sticky tar filter |
| JP2012096194A (en) * | 2010-11-04 | 2012-05-24 | Benten:Kk | Filter cleaning system |
| CN102772940A (en) * | 2012-07-31 | 2012-11-14 | 黑龙江建龙钢铁有限公司 | Device and method for back washing of ceramic filter of coking surplus ammonia water filter tar |
| CN203017841U (en) * | 2012-12-25 | 2013-06-26 | 中国矿业大学(北京) | Coal tar pressure filtering device |
| CN203620344U (en) * | 2013-12-30 | 2014-06-04 | 大连华氏流体设备有限公司 | Automatic low-temperature coal tar filter device |
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