CN105822616B - The driving control system of loop type extractor - Google Patents
The driving control system of loop type extractor Download PDFInfo
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- CN105822616B CN105822616B CN201610342609.6A CN201610342609A CN105822616B CN 105822616 B CN105822616 B CN 105822616B CN 201610342609 A CN201610342609 A CN 201610342609A CN 105822616 B CN105822616 B CN 105822616B
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- oil
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- hydraulic
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/006—Refining fats or fatty oils by extraction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
Abstract
The present invention relates to a kind of driving control system of loop type extractor, ring chain is driven jointly by upper and lower drive shaft, upper and lower drive shaft is driven by upper and lower fluid pressure drive device, the oil inlet of upper and lower fluid pressure drive device is connected with hydraulic oil fuel feeding house steward respectively, and the oil return opening of upper and lower fluid pressure drive device is connected with hydraulic oil oil return house steward respectively；Hydraulic oil pump is driven by hydraulic oil pump motor, the Median Function of three position four-way directional control valve is M types, the suction inlet of hydraulic oil pump is connected with the oil-out of hydraulic oil container and is provided with oil absorption filter at the oil-out of hydraulic oil container, the outlet of hydraulic oil pump is connected by check valve with the P mouths of three position four-way directional control valve, the T mouths of three position four-way directional control valve are connected with the oil return opening of hydraulic oil container, the A mouths of three position four-way directional control valve are connected with hydraulic oil fuel feeding house steward, and the B mouths of three position four-way directional control valve are connected with hydraulic oil oil return house steward.The system can realize the Two axle drive of chain and synchronous even running.
Description
Technical field
The present invention relates to a kind of infuser, more particularly to a kind of driving control system of loop type extractor belongs to vegetable oil
Leach control technology field.
Background technology
Leaching is the most key process in oil refining process, and its principle is the intersolubility using grease and solvent, molten
Agent penetrates into solid oil plant, and dissolving grease formation concentrated blend expands due to there is the concentrated blend inside concentration difference, solid oil plant
In the dilute miscella for being scattered to outside, oil extraction is come out.The capital equipment leached in process is infuser, according to material characteristic
And yield, it is general using pot group type infuser, flat rotary extractor or ring type infuser etc..
Traditional loop type extractor includes ring chain, and the head lower end of ring chain is driven using single drive shaft, head
Upper end is turned to using arc track, and afterbody bending section is slided for upper strata chain using semicircular track and is diverted to lower floor, upper strata chain
The lower section of bar, which is provided with below upper strata screen, lower floor's scraper plate, is provided with lower floor's screen, and the lower section of upper strata screen is provided with upper strata oil bucket, lower floor
The lower section of screen is respectively to be provided with the bed of material provided with lower floor's oil bucket, the top of upper and lower layer screen, is uniformly provided with along the circumference of chain
Spray equipment is respectively equipped with above heavy big scraper plate, the upper and lower bed of material, immersion extraction is carried out to material, the grease of leaching is fallen into
In the oil bucket of lower section.
Sprocket wheel and chain engagement place stress when single drive shaft drives is big, abrasion weight；Chain is while under tension and moment of flexure
Effect, stress is big, when have chain cleavage, running check, replacings cause operating cost height.If taking double driving shafts to drive
Stationary problem must be solved, if while can be blocked in the too high infuser of material position, the material envelope at the too low then charging aperture of material position
Destroyed, solvent vapo(u)r can be caused to be leaked at charging aperture.
The content of the invention
It is an object of the present invention to overcome problems of the prior art, there is provided a kind of driving control of loop type extractor
System processed, it is possible to achieve the Two axle drive of chain and Biaxial synchronous even running.
To solve above technical problem, a kind of driving control system of loop type extractor of the invention, including detour in leaching
The ring chain gone out in device housing, the ring chain is driven jointly by upper drive shaft and lower drive shaft, the upper drive shaft by
Upper fluid pressure drive device driving, the lower drive shaft is driven by lower fluid pressure drive device, the upper fluid pressure drive device and described
Lower fluid pressure drive device is controlled by same hydraulic power unit, and the upper fluid pressure drive device enters with the lower fluid pressure drive device
Hydraulic fluid port is connected by fuel feeding branch pipe with hydraulic oil fuel feeding house steward respectively, and the upper fluid pressure drive device is filled with the lower hydraulic-driven
The oil return opening put is connected by oil returning branch pipe with hydraulic oil oil return house steward respectively；The hydraulic power unit includes hydraulic oil container, hydraulic pressure
Oil pump and three position four-way directional control valve, the hydraulic oil pump are driven by hydraulic oil pump motor, the middle position of the three position four-way directional control valve
Function is M types, and the suction inlet of the hydraulic oil pump is connected with the oil-out of the hydraulic oil container and pacified at the oil-out of hydraulic oil container
Equipped with oil absorption filter, the outlet of the hydraulic oil pump is connected by check valve with the P mouths of the three position four-way directional control valve, described
The T mouths of three position four-way directional control valve are connected with the oil return opening of the hydraulic oil container, A mouths and the liquid of the three position four-way directional control valve
Press oil fuel feeding house steward to be connected, the B mouths of the three position four-way directional control valve are connected with the hydraulic oil oil return house steward.
Relative to prior art, the present invention achieves following beneficial effect：Handle is first passed through to cut three position four-way directional control valve
Shift to middle position, start after the hydraulic oil in hydraulic oil pump, hydraulic oil container is filtered through oil absorption filter and enter hydraulic oil pump, now by
P mouths and T mouthfuls of directly conducting oil returns in three position four-way directional control valve, the hydraulic oil of hydraulic oil pump output return to hydraulic oil container and realize liquid
Press oil the No Load Start of pump motor.During normal work, three position four-way directional control valve is switched to by right working position by handle, hydraulic oil from
The A mouths of three position four-way directional control valve enter hydraulic oil fuel feeding house steward, enter upper and lower hydraulic-driven dress simultaneously by hydraulic oil fuel feeding house steward
Put, drive upper and lower drive shaft synchronous axial system, the oil return of upper and lower fluid pressure drive device respectively enters hydraulic oil oil return house steward, from liquid
Press oil oil return house steward and enter the B mouths of three position four-way directional control valve, then hydraulic oil container is returned to from T mouthfuls.It is a small amount of in infuser Start-up and Adjustment
After charging, three position four-way directional control valve can be switched to by left station by handle, realize rotating backward for upper and lower drive shaft, but
Material is discharged from the discharging opening of head casing as early as possible.The hydraulic oil of hydraulic oil pump output is assigned to two confessions by hydraulic oil fuel feeding house steward
Oil inlet pipe, then fluid pressure drive device and lower fluid pressure drive device are respectively enterd, then import hydraulic oil oil return by two oil returning branch pipes
House steward, is then return to hydraulic oil container；Because the hydraulic fluid pressure of upper and lower fluid pressure drive device input is equal, upper and lower drive shaft
Output torque is identical in theory, by hydraulic system self-balancing pressure, it is ensured that two-axis synchronization even running.
As the improvement of the present invention, it is controlled that the hydraulic oil pump motor M1 is controlled by frequency converter VFD, the frequency converter VFD
Start button SB1, stop button SB2, the frequency conversion have been sequentially connected in series between control loop, the both positive and negative polarity of the control loop
The delay of device VFD failure breaking-off contact, stall alert time-delay relay disconnects normally closed interlock KT1-1 and main motor control relay
Device K1 coil, start button SB1 two ends are parallel with the self-keeping contact K1-1 of main motor control relay, main motor control after
Second normally open contact K1-2 of electrical equipment is connected on the enabling signal input of the frequency converter VFD；Level position transducer LT material position
Signal output part is connected with the input end of analog signal AI of the frequency converter VFD, the analog signal output of the frequency converter VFD
End AO is connected with comparator relay SSR the first signal source input AI1；Detect the speed measurement switch of infuser chain pace
ZS signal end output end is connected with velocity transducer SST signal input part, velocity transducer SST signal output part with than
Secondary signal source input AI2 connections compared with relay SSR；The comparison signal failure contact of the comparator relay SSR and master
It is connected to after 3rd normally open contact K1-3 of motor control relay and the stall alert time-delay relay KT1 coil series connection
Between the both positive and negative polarity of control loop.Start button SB1 is pressed, main motor control relay K1 coil obtains electric, main motor control
Self-keeping contact's K1-1 adhesive self-insurances of relay, the second normally open contact K1-2 closures of main motor control relay make frequency converter
VFD starts driving hydraulic oil pump motor M1 and rotated, and hydraulic power unit is advanced by fluid power system drive chain；Frequency converter according to
The rotating speed for the level signals regulation hydraulic oil pump motor M1 that level position transducer LT is detected, and actuating speed signal is supplied to
Comparator relay SSR the first signal source input；Speed measurement switch ZS detects the actual pace of infuser chain, and leads to
Cross the secondary signal source input that chain actual speed signal is supplied to comparator relay SSR by velocity transducer SST；If driven
Dynamic rate signal occurs than larger error with chain actual speed signal, then comparator relay SSR comparison signal failure is tactile
Head closure, makes stall alert time-delay relay KT1 coil obtain electric, and the delay of stall alert time-delay relay disconnects normally closed interlock
KT1-1 delays disconnect, and make main motor control relay K1 coil losing electricity, the self-keeping contact K1-1 of main motor control relay,
Second normally open contact K1-2 of main motor control relay and the 3rd normally open contact K1-3 of main motor control relay break simultaneously
Open, frequency converter VFD is stopped and ring chain is halted.When frequency converter VFD itself is out of order, frequency converter VFD event
Barrier breaking-off contact, which disconnects, shuts down hydraulic oil pump motor M1.
As a further improvement on the present invention, high charge level switch LT-H and the high charge level of the level position transducer LT alarm after
It is connected to after electrical equipment KT2 coil series connection between the both positive and negative polarity of control loop, high charge level alarm relay KT2 normally open contact
KT2-1 is with forbidding supplied materials relay K2 coil to be connected to after connecting between the both positive and negative polarity of control loop.When the material in infuser
When layer height is too high, triggering high charge level switch LT-H closures, high charge level alarm relay KT2 coil obtains electric, high charge level alarm
Relay KT2 normally open contact KT2-1 closures, make to forbid supplied materials relay K2 coil to obtain electric, and stopping is sent to charging circuit
Feed signal.
As a further improvement on the present invention, the low stuff level switch LT-L of the level position transducer LT and low material position alarm after
It is connected to after electrical equipment KT3 coil series connection between the both positive and negative polarity of control loop, low material position alarm relay KT3 normally closed interlock
KT3-1 is connected on the delay disconnection normally closed interlock KT1-1 and main motor control relay K1 of stall alert time-delay relay line
Between circle.When feeding mechanism, which breaks down, make it that the bed depth in infuser is too low, low stuff level switch LT-L closures are triggered,
Low material position alarm relay KT3 coil obtains electric, and low material position alarm relay KT3 normally closed interlock KT3-1 delays disconnect, and make master
Motor control relay K1 coil losing electricity, frequency converter VFD is stopped and ring chain is halted.
As a further improvement on the present invention, be provided with the hydraulic oil fuel feeding house steward super oil pressure alarm switch PT-H and
Low oil pressure alarm switch PT-L, the super oil pressure alarm switch PT-H are connected to control after being connected with hydraulic system fault indicator lamp H4
Between the both positive and negative polarity in loop processed, the low oil pressure alarm switch PT-L and the 4th normally open contact K1-4 of main motor control relay
It is in parallel after series connection with the super oil pressure alarm switch PT-H.When superpressure occurs for hydraulic oil fuel feeding house steward, super oil pressure alarm switch
PT-H closures light hydraulic system fault indicator lamp H4；It is in and inhales in the 4th normally open contact K1-4 of main motor control relay
When conjunction state is hydraulic oil pump motor M1 in running order, if during the hypotony of hydraulic oil fuel feeding house steward, low oil pressure report
Alert switch PT-L closures also light hydraulic system fault indicator lamp H4.
As a further improvement on the present invention, the coil two ends of the stall alert time-delay relay KT1 are parallel with stall
Alarm lamp H1, the coil two ends of the high charge level alarm relay KT2 are parallel with high charge level alarm lamp H2, the taboo
Only supplied materials relay K2 coil two ends, which are parallel with, forbids supplied materials indicator lamp H5.If actuating speed signal and chain actual speed
When signal is occurred than larger error, stall alert indicator lamp H1 is lighted while shutdown；High charge level triggering high charge level switch LT-
When H is closed, high charge level alarm lamp H2 is lighted；While forbidding the supplied materials actuating of relay, supplied materials indicator lamp H5 is forbidden to light.
As a further improvement on the present invention, the coil two ends of the low material position alarm relay KT3 are parallel with low material position
Alarm lamp H3.When low material position triggers low stuff level switch LT-L closures, low material position alarm lamp H3 is lighted.
As a further improvement on the present invention, the comparator relay SSR include power module, it is CPU, communication module, defeated
Enter module and relay driving module；DC24V is converted into DC 5V operating voltages and is supplied to each module by the power module；CPU
The two-way analog signal that the input module is transmitted is converted to data signal, result of calculation then is compared into judgement, such as
The error of fruit two paths of signals value exceedes permissible value, then it is driven the comparison to relay driving module output low level
Signal fault contact action；The communication module is uploaded to by download program into CPU or by the data and working condition in CPU
In host computer；4 ~ the 20mA of two-way received current signal is respectively converted into 0 ~ 5V voltage signal by the input module,
And CPU two-way input end of analog signal is delivered to, while playing a part of signal isolation；The relay driving module is received
The low level control signal that CPU is sent is gone forward side by side after row energization amplification, the comparison signal failure contact is produced closed action.
Communication module is by download program into CPU, and the first signal source input AI1 of input module receives the mould of frequency converter VFD outputs
It is driving analog signal to intend signal, and the secondary signal source input AI2 of input module receives the simulation that velocity transducer SST is sent
Signal and the actual pace analog signal of chain, input module change the 4 ~ 20mA of two-way received current signal respectively
For 0 ~ 5V voltage signal, and deliver to CPU two-way input end of analog signal P1.1 and P1.2；CPU transmits input module
Two-way DC0 ~ 5V analog signals are converted to 10 position digital signals, are calculated, then enter result of calculation according to respective range
Row multilevel iudge, P0.5 outputs low level delivers to relay driving module if the error of two paths of signals value exceedes permissible value,
Relay driving module drives comparison signal failure contact closure；Communication module can be by the data and working condition in CPU
Reach in host computer.
As a further improvement on the present invention, the power module uses LM7805 regulator blocks, and the CPU is used
STC15F2K60S2 single-chip microcomputers, the communication module uses MAX485 chips, and the input module uses WS1521 signal isolations
Device.
As a further improvement on the present invention, the infuser housing is by head casing, feed zone, upper extracting stage, lower leaching
Go out section, drain section and tail box body phase is mutually spliced, the upper strata of the ring chain is located at the feed zone and upper extracting stage
In, the lower floor of the ring chain is located at the lower extracting stage and drained in section, and the right output port of the feed zone is drained with described
The right output port of section is connected by flange with the upper and lower ends of the head casing respectively, the left port of the upper extracting stage and institute
The left port for stating lower extracting stage is connected by flange with the upper and lower ends of the afterbody casing respectively, the left end of the feed zone
Mouth is connected with the right output port of the upper extracting stage by flange, the right output port of the lower extracting stage and the left end for draining section
Mouth is connected by flange；The lower drive shaft is located at the bottom of the head casing, and the upper guider is located at the head
The top of portion's casing, the upper drive shaft is located at the top of the afterbody casing, and the lower tensioning shaft is located at the afterbody casing
Bottom.After ring chain starts, oil plant embryo enters from the charging aperture at the top of buffer bin, and upper strata is layered under drawing-in device driving
Expect on bed, upper strata scraper plate promotes material right-to-left to advance from the upward extracting stage of feed zone, after oil plant indusium miscella spray into
For the wet dregs of rice, the wet dregs of rice enter afterbody casing from the left end of upper extracting stage, and material is dropped down onto on lower layered material bed in afterbody casing, and lower floor scrapes
Plate promotes material to sequentially pass through lower extracting stage to the right from the bottom of afterbody casing and drain section, finally reaches head casing from discharging
Mouth discharge.Material is during advance, and extract is constantly sprayed to material, soaked and extracted, and the grease of leaching is fallen into down
In the oil bucket of side.Huge infuser is divided into several standalone modules, is easy in the prepackage of manufacturing shop and subdivision transport,
It can easily connect integral to erecting bed, greatly reduce on-site installation work amount and construction period.With tradition list
Chain is held tightly to slide in afterbody semicircular track and compared in axle driving structure, and drive shaft and lower are gone up in afterbody casing of the present invention
The force-bearing situation of mandrel is good, running resistance very little.Afterbody can be used due to not needing scraper plate to be turned to scraper from top to bottom
Light-duty bar shaped scraper plate, without using heavy big scraper plate.Traditional semicircular track afterbody promotes material descending by heavy type scratch board
And turn to, the wet dregs of rice have interrupted immersion and eluted during steering is descending；The Two axle drive structure of the present invention, material is relied under gravity
Sliding, in whereabouts, Duan Buyu scraper plates are contacted, and can be proceeded to soak during descending and be eluted, substantially increase the production of leaching
Energy and efficiency.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description, accompanying drawing only provide with reference to
Illustrate to use, be not used to the limitation present invention.
Fig. 1 is the structural representation of infuser of the present invention.
Fig. 2 is the stereogram of infuser drive system of the present invention.
Fig. 3 is the piping diagram of infuser hydraulic system of the present invention.
Fig. 4 is the stereogram of infuser transmission system of the present invention.
Fig. 5 is the enlarged drawing at A positions in Fig. 4.
Fig. 6 is the hydraulic schematic diagram of infuser of the present invention.
Fig. 7 is the electrical schematic diagram of the driving control system of loop type extractor of the present invention.
Fig. 8 is the schematic diagram of comparator relay in Fig. 7.
In figure：1. buffer bin；1a. charging apertures；2. feed zone；3. on extracting stage；4. lower extracting stage；5. drain section；6.
Portion's casing；6a. discharging openings；7. afterbody casing；7a. slide carriages；7b. striker plates；8. upper strata screen；8a. upper stratas slide rail；9. lower-layer gate
Plate；9a. lower floors slide rail；10. on drive shaft；The upper fluid pressure drive devices of 10a.；10b. upper sprocket wheels；11. lower drive shaft；Liquid under 11a.
Hydraulic driver；11b. lower sprockets；12. on guider；13. lower tensioning shaft；Tightener sprocket under 13a.；14. hydraulic power unit；
14a. hydraulic oil containers；14a1. air cleaners；14a2. liquid level liquid thermometer；14b. oil absorption filters；14c. manual ball valves；14d.
Compensator；14e. hydraulic oil pumps；M1. hydraulic oil pump motor；14f. check valves；14g. pressure oil strainers；14h. 3-position 4-ways
Reversal valve；15. ring chain；15a. outer plates；15b. inner plates；15c. chain rollers；15d. wear-resistant slide blocks；16. scraper plate.
QM1. breaker；FC1. electrothermal relay；VFD. frequency converter；SB1. start button；SB2. stop button；K1. main electricity
Machine control relay；K2. supplied materials relay is forbidden；KT1. stall alert time-delay relay；KT2. high charge level alarm relay；
KT3. low material position alarm relay；LT. level position transducer；ZS. speed measurement switch；SST. velocity transducer；SSR. comparator relay；
PT-H. super oil pressure alarm switch；PT-L. low oil pressure alarm switch；H1. stall alert indicator lamp；H2. high charge level police instruction
Lamp；H3. low material position alarm lamp；H4. hydraulic system fault indicator lamp；H5. supplied materials indicator lamp is forbidden.
Embodiment
As shown in Figures 1 to 5, the drive system of loop type extractor of the present invention includes the endless chain being located in infuser housing
Multiple scraper plates 16 are uniformly installed, the lower right corner of ring chain 15 is provided with lower drive shaft 11, lower driving on bar 15, ring chain 15
Lower sprocket 11b is installed, the upper right corner of ring chain 15 is provided with upper guider 12 on axle 11, upper guider 12 be slide rail or
Upper tightener sprocket.The upper left corner of ring chain 15 is provided with upper drive shaft 10, upper drive shaft 10 and is provided with upper sprocket wheel 10b, annular
The lower left corner of chain 15 is provided with lower tensioning shaft 13, is provided with lower tightener sprocket 13a on lower tensioning shaft 13, ring chain 15 successively around
Bag lower sprocket 11b, on guider 12, upper sprocket wheel 10b and lower tightener sprocket 13a.
Infuser housing by head casing 6, feed zone 2, upper extracting stage 3, lower extracting stage 4, drain section 5 and afterbody casing 7
Mutually it is spliced, the upper strata of ring chain 15 is located in feed zone 2 and upper extracting stage 3, under the lower floor of ring chain 15 is located at
Extracting stage 4 is with draining in section 5, and the right output port of feed zone 2 is with draining the right output port of section 5 respectively by flange and head casing 6
Upper and lower ends are connected, and the left port of upper extracting stage 3 and the left port of lower extracting stage 4 pass through flange and afterbody casing 7 respectively
Upper and lower ends are connected, and the left port of feed zone 2 is connected with the right output port of upper extracting stage 3 by flange, the right side of lower extracting stage 4
Port is connected with draining the left port of section 5 by flange；Lower drive shaft 11 is located at the bottom of head casing 6, upper guider
12 are located at the top of head casing 6, and upper drive shaft 10 is located at the top of afterbody casing 7, and lower tensioning shaft 13 is located at afterbody casing 7
Bottom.
After ring chain 15 starts, oil plant embryo enters from the charging aperture 1a at the top of buffer bin 1, and lower berth is driven in drawing-in device
On upper layer material bed, upper strata scraper plate promotes material right-to-left to advance from the upward extracting stage 3 of feed zone 2, oil plant indusium miscella
Turn into the wet dregs of rice after spray, the wet dregs of rice enter afterbody casing 7 from the left end of upper extracting stage 3, and material drops down onto lower layered material in afterbody casing 7
On bed, lower floor's scraper plate promotes material to sequentially pass through lower extracting stage 4 to the right from the bottom of afterbody casing 7 and drain section 5, finally reaches
Head casing 6 is discharged from discharging opening 6a.Material is during advance, and extract is constantly sprayed to material, soaked and extracted,
The grease of leaching is fallen into the oil bucket of lower section.
Breadth direction extension of the scraper plate 16 along infuser, the two ends of scraper plate 16 are respectively fixedly connected with the outer of ring chain 15
On carrier bar 15a, outer plate 15a, which is hinged on by chain pin in the middle part of inner plate 15b outside, chain pin, is respectively installed with chain roller
15c, the top position corresponding with chain roller 15c of scraper plate 16 is respectively fixed with wear-resistant slide block 15d；The upper strata of ring chain 15
Lower section is provided with upper strata screen 8, upper strata screen 8 and is embedded with the upper strata slide rail 8a contacted with chain roller 15c；Under lower floor's scraper plate
Side is provided with lower floor's screen 9, lower floor's screen 9 and is embedded with the lower floor slide rail 9a contacted with wear-resistant slide block 15d.
Lower drive shaft 11 be located at upper guider 12 underface on the right side of, lower tensioning shaft 13 be located at upper drive shaft 10 just under
Side left side；The right side of upper drive shaft 10 is provided with the slide carriage 7a that connects relative with the left end of upper strata screen 8, and slide carriage 7a lower end is to the left
Tilt, provided with the striker plate 7b being tilted to the right between slide carriage 7a lower end and lower tensioning shaft 13, striker plate 7b lower end is just
Lower section is provided with the blind plate docked with the level of lower floor screen 9.
Upper strata chain is rolled by chain roller 15c on the slide rail 8a of upper strata, when chain goes to lower floor, due to scraper plate 16
Upper limb down, chain roller 15c can not be supported on lower floor slide rail 9a, the present invention be fixed with resistance to wear smooth at the top of scraper plate 16
Block 15d, is supported on lower floor slide rail 9a by wear-resistant slide block 15d, makes to be formed very between the top of lower floor's scraper plate and lower floor's screen 9
Small gap；The advance frictional force of chain of the present invention is small, to screen not damaged, and screen service life is long, and operating cost is low；Realize
Contactless, zero abrasion between scraper plate 16 and screen, it is to avoid gap becomes big to screen because of abrasion, enters excessive cake embryo powder
In miscella, leaching system is produced and endangers or adversely affects, the service life of infuser is extended, it also avoid screen abrasion
Running check, replacing afterwards, cause operating cost high.
As shown in Figure 3 and Figure 6, upper drive shaft 10 is driven by upper fluid pressure drive device 10a, and lower drive shaft 11 is driven by lower hydraulic pressure
Dynamic device 11a drivings, upper fluid pressure drive device 10a and lower fluid pressure drive device 11a are controlled by same hydraulic power unit 14, upper liquid
Hydraulic driver 10a is connected by fuel feeding branch pipe with hydraulic oil fuel feeding house steward respectively with lower fluid pressure drive device 11a oil inlet,
Upper fluid pressure drive device 10a and lower fluid pressure drive device 11a oil return opening passes through oil returning branch pipe and hydraulic oil oil return house steward respectively
It is connected.
Hydraulic power unit 14 includes hydraulic oil container 14a, hydraulic oil pump and three position four-way directional control valve 14h, and hydraulic oil pump is by hydraulic pressure
Oil pump electrical machinery drives, and three position four-way directional control valve 14h Median Function is M types, the suction inlet of hydraulic oil pump and going out for hydraulic oil container 14a
Hydraulic fluid port is connected and is provided with oil absorption filter at hydraulic oil container 14a oil-out, the outlet of hydraulic oil pump by check valve 14f with
Three position four-way directional control valve 14h P mouths are connected, and the T mouths of three position four-way directional control valve are connected with hydraulic oil container 14a oil return opening, three
The A mouths of four-way reversing valve are connected with hydraulic oil fuel feeding house steward, and the B mouths of three position four-way directional control valve are connected with hydraulic oil oil return house steward.
Manual ball valve 14c and compensator 14d is provided between the suction inlet of hydraulic oil pump and hydraulic oil container 14a oil-out；It is single
To between valve 14f and three position four-way directional control valve 14h P mouths be provided with pressure oil strainer 14g.
Hydraulic oil container 14a top is communicated by air cleaner 14a1 with air, is provided with the wall of hydraulic oil container 14a sides
Liquid level liquid thermometer 14a2.
First pass through handle and three position four-way directional control valve 14h is switched into middle position, start the hydraulic pressure in hydraulic oil pump, hydraulic oil container
Oil enters hydraulic oil pump after being filtered through oil absorption filter 14b, now because the P mouths of three position four-way directional control valve are directly turned on T mouthfuls
Oil return, the hydraulic oil of hydraulic oil pump output returns to the No Load Start that hydraulic oil container realizes hydraulic oil pump motor.
During normal work, three position four-way directional control valve 14h is switched to by right working position by handle, hydraulic oil is changed from 3-position 4-way
Enter hydraulic oil fuel feeding house steward to the A mouths of valve, upper and lower fluid pressure drive device 11a, driving are entered by hydraulic oil fuel feeding house steward simultaneously
Upper drive shaft 10, the synchronous axial system of lower drive shaft 11, upper fluid pressure drive device 10a, lower fluid pressure drive device 11a oil return are entered respectively
Enter hydraulic oil oil return house steward, the B mouths of three position four-way directional control valve are entered from hydraulic oil oil return house steward, then hydraulic oil container is returned to from T mouthfuls.
After infuser Start-up and Adjustment on a small quantity charging, three position four-way directional control valve 14h can be switched to by left station by handle,
Drive shaft 10 in realization, lower drive shaft 11 are rotated backward, but material discharges from the discharging opening of head casing as early as possible.
As shown in fig. 7, hydraulic oil pump motor M1 be controlled by frequency converter VFD, major loop be in series with circuit breaker Q M1 and heat after
Electrical equipment FC1, frequency converter VFD is controlled by control loop.Control loop uses 24V direct currents, between the both positive and negative polarity of control loop according to
It is secondary to be in series with start button SB1, stop button SB2, frequency converter VFD failure breaking-off contact, stall alert time-delay relay
Delay disconnects normally closed interlock KT1-1 and main motor control relay K1 coil, and start button SB1 two ends are parallel with main motor
The self-keeping contact K1-1 of control relay, the second normally open contact K1-2 of main motor control relay is connected on frequency converter VFD's
Enabling signal input.
Level position transducer LT level signals output end is connected with frequency converter VFD input end of analog signal AI, frequency conversion
Device VFD analog signal output AO and comparator relay SSR the first signal source input AI1 are connected.Detect infuser chain
The speed measurement switch ZS of bar pace signal end output end is connected with velocity transducer SST signal input part, speed transmitting
Device SST signal output part is connected with comparator relay SSR secondary signal source input AI2；Comparator relay SSR comparison
The coil of signal fault contact and the 3rd normally open contact K1-3 and stall alert time-delay relay KT1 of main motor control relay
It is connected to after series connection between the both positive and negative polarity of control loop.Stall alert time-delay relay KT1 coil two ends are parallel with stall report
Alert indicator lamp H1.
Start button SB1 is pressed, main motor control relay K1 coil obtains electric, the self-insurance of main motor control relay is touched
Head K1-1 adhesive self-insurances, the second normally open contact K1-2 closures of main motor control relay make frequency converter VFD start driving hydraulic pressure
Oil pump electrical machinery M1 is rotated, and hydraulic power unit is advanced by fluid power system drive chain.
The level signals that frequency converter is detected according to level position transducer LT adjust hydraulic oil pump motor M1 rotating speed, and will
Actuating speed signal is supplied to comparator relay SSR the first signal source input.Speed measurement switch ZS detects infuser chain
Actual pace, and chain actual speed signal is supplied to the second of comparator relay SSR by velocity transducer SST
Signal source input；If actuating speed signal occurs than larger error, comparator relay with chain actual speed signal
SSR comparison signal failure contact closure, stall alert indicator lamp H1 is lighted, while stall alert time-delay relay KT1 line
Enclose electric, the delay of stall alert time-delay relay disconnects normally closed interlock KT1-1 delays and disconnected, and makes main motor control relay K1
Coil losing electricity, the self-keeping contact K1-1 of main motor control relay, the second normally open contact K1-2 of main motor control relay
Simultaneously switched off with the 3rd normally open contact K1-3 of main motor control relay, frequency converter VFD is stopped and stops ring chain
Advance.
When frequency converter VFD itself is out of order, frequency converter VFD failure breaking-off contact, which disconnects, stops hydraulic oil pump motor M1
Machine.
Level position transducer LT high charge level switch LT-H is connected to control after being connected with high charge level alarm relay KT2 coil
Between the both positive and negative polarity in loop processed, high charge level alarm relay KT2 coil two ends are parallel with high charge level alarm lamp H2, height material
Position alarm relay KT2 normally open contact KT2-1 is with forbidding supplied materials relay K2 coil to be connected to control loop after connecting
Between both positive and negative polarity.Forbid supplied materials relay K2 coil two ends to be parallel with and forbid supplied materials indicator lamp H5.When the bed of material in infuser
During excessive height, triggering high charge level switch LT-H closures, high charge level alarm lamp H2 is lighted, while high charge level alarm relay
KT2 coil obtains electric, high charge level alarm relay KT2 normally open contact KT2-1 closures, makes the coil for forbidding supplied materials relay K2
Obtain electric, forbid supplied materials indicator lamp H5 to light, stopping charging signal is sent to charging circuit.
Level position transducer LT low stuff level switch LT-L is connected to control after being connected with low material position alarm relay KT3 coil
Between the both positive and negative polarity in loop processed, low material position alarm relay KT3 coil two ends are parallel with low material position alarm lamp H3.Low material
The delay that position alarm relay KT3 normally closed interlock KT3-1 is connected on stall alert time-delay relay disconnects normally closed interlock KT1-1
Between main motor control relay K1 coil.Make it that the bed depth in infuser is too low when feeding mechanism breaks down
When, low stuff level switch LT-L closures are triggered, low material position alarm lamp H3 is lighted, while low material position alarm relay KT3 line
Enclose electric, low material position alarm relay KT3 normally closed interlock KT3-1 delays disconnect, and make main motor control relay K1 coil
Dead electricity, frequency converter VFD is stopped and ring chain is halted.
Super oil pressure alarm switch PT-H and low oil pressure alarm switch PT-L, super oil pressure report are installed on hydraulic oil fuel feeding house steward
Alert switch PT-H is connected between the both positive and negative polarity of control loop after being connected with hydraulic system fault indicator lamp H4, and low oil pressure alarm is opened
Close after PT-L connects with the 4th normally open contact K1-4 of main motor control relay and be in parallel with super oil pressure alarm switch PT-H.Liquid
When pressing oil fuel feeding house steward generation superpressure, super oil pressure alarm switch PT-H closures light hydraulic system fault indicator lamp H4；In master
4th normally open contact K1-4 of motor control relay in attracting state be hydraulic oil pump motor M1 in running order when, such as
During the hypotony of fruit hydraulic oil fuel feeding house steward, low oil pressure alarm switch PT-L closures also make hydraulic system fault indicator lamp H4 bright
Rise.
As shown in figure 8, comparator relay SSR includes power module, CPU, communication module, input module and relay driving
Module；DC24V is converted into DC 5V operating voltages and is supplied to each module by power module；The two-way mould that CPU transmits input module
Intend signal and be converted to data signal, result of calculation is then compared judgement, allow if the error of two paths of signals value exceedes
Value, then make it drive comparison signal failure contact action to relay driving module output low level；Communication module is by under program
It is downloaded in CPU or the data and working condition in CPU is uploaded in host computer；Input module is by the 4 ~ 20mA of two-way received
Current signal be respectively converted into 0 ~ 5V voltage signal, and CPU two-way input end of analog signal is delivered to, while playing signal
The effect of isolation；The low level control signal that relay driving module reception CPU is sent is gone forward side by side after row energization amplification, makes to compare
Signal fault contact produces closed action.
Communication module is by download program into CPU, and the first signal source input AI1 of input module receives frequency converter VFD
The analog signal of output is driving analog signal, and the secondary signal source input AI2 of input module receives velocity transducer SST and sent
The actual pace analog signal of analog signal and chain come, input module is by the 4 ~ 20mA of two-way received current signal
0 ~ 5V voltage signal is respectively converted into, and delivers to CPU two-way input end of analog signal P1.1 and P1.2；CPU will input mould
Two-way DC0 ~ 5V analog signals that block is transmitted are converted to 10 position digital signals, are calculated according to respective range, then will meter
Calculate result and be compared judgement, P0.5 outputs low level is delivered to relay and driven if the error of two paths of signals value exceedes permissible value
Dynamic model block, relay driving module driving comparison signal failure contact closure；Communication module can be by the data in CPU and work
State is uploaded in host computer.
Power module uses LM7805 regulator blocks, and CPU uses STC15F2K60S2 single-chip microcomputers, and communication module uses MAX485
Chip, input module uses WS1521 signal isolators.Velocity transducer SST can use KFU8-FSSP-1 types, and brand is extraordinarily
Good fortune P+F.
It the foregoing is only the preferable possible embodiments of the present invention, non-therefore the limitation present invention patent protection model
Enclose.In addition to the implementation, the present invention can also have other embodiment.All use equivalent substitutions or the skill of equivalent transformation formation
Art scheme, all falls within the protection domain of application claims.Technical characteristic of the invention without description can be by or using now
There is technology realization, will not be repeated here.
Claims (9)
1. a kind of driving control system of loop type extractor, including the ring chain in infuser housing that detours, the annular
Chain is driven jointly by upper drive shaft and lower drive shaft, it is characterised in that：The upper drive shaft is driven by upper fluid pressure drive device,
The lower drive shaft is driven by lower fluid pressure drive device, and the upper fluid pressure drive device and the lower fluid pressure drive device are controlled by
Same hydraulic power unit, the oil inlet of the upper fluid pressure drive device and the lower fluid pressure drive device passes through fuel feeding branch pipe respectively
Fuel feeding house steward is connected with hydraulic oil, and the oil return opening of the upper fluid pressure drive device and the lower fluid pressure drive device is respectively by returning
Oil inlet pipe is connected with hydraulic oil oil return house steward；The hydraulic power unit includes hydraulic oil container, hydraulic oil pump and three position four-way directional control valve,
The hydraulic oil pump is driven by hydraulic oil pump motor, and the Median Function of the three position four-way directional control valve is M types, the hydraulic oil pump
Suction inlet be connected with the oil-out of the hydraulic oil container and oil absorption filter, the hydraulic pressure be installed at the oil-out of hydraulic oil container
The outlet of oil pump is connected by check valve with the P mouths of the three position four-way directional control valve, the T mouths of the three position four-way directional control valve and institute
The oil return opening for stating hydraulic oil container is connected, and the A mouths of the three position four-way directional control valve are connected with the hydraulic oil fuel feeding house steward, and described three
The B mouths of position and four-way reversing valve are connected with the hydraulic oil oil return house steward；The hydraulic oil pump motor (M1) is controlled by frequency converter
(VFD), the frequency converter (VFD) be controlled by between control loop, the both positive and negative polarity of the control loop be sequentially connected in series startup by
Button（SB1）, stop button（SB2）, the failure breaking-off contact of the frequency converter (VFD), the delay of stall alert time-delay relay
Disconnect normally closed interlock（KT1-1）With main motor control relay（K1）Coil, start button（SB1）Two ends be parallel with main electricity
The self-keeping contact of machine control relay（K1-1）, the second normally open contact of main motor control relay（K1-2）It is connected on the change
The enabling signal input of frequency device (VFD)；Level position transducer（LT）Level signals output end and the frequency converter (VFD) mould
Intend signal input part（AI）It is connected, the analog signal output of the frequency converter (VFD)（AO）With comparator relay（SSR）'s
First signal source input（AI1）Connection；Detect the speed measurement switch of infuser chain pace（ZS）Signal end output end
With velocity transducer（SST）Signal input part connection, velocity transducer（SST）Signal output part and comparator relay
（SSR）Secondary signal source input（AI2）Connection；The comparator relay（SSR）Comparison signal failure contact and main electricity
3rd normally open contact of machine control relay（K1-3）And the stall alert time-delay relay（KT1）Coil series connection after connect
Between the both positive and negative polarity of control loop.
2. the driving control system of loop type extractor according to claim 1, it is characterised in that：The level position transducer
（LT）High charge level switch (LT-H) connected with the coil of high charge level alarm relay (KT2) after be connected to the positive and negative of control loop
Between pole, the normally open contact of high charge level alarm relay (KT2)（KT2-1）With forbidding supplied materials relay（K2）Coil series connection after
It is connected between the both positive and negative polarity of control loop.
3. the driving control system of loop type extractor according to claim 1, it is characterised in that：The level position transducer
（LT）Low stuff level switch (LT-L) connected with the coil of low material position alarm relay (KT3) after be connected to the positive and negative of control loop
Between pole, the normally closed interlock of low material position alarm relay (KT3)（KT3-1）The delay for being connected on stall alert time-delay relay is broken
Open normally closed interlock（KT1-1）With main motor control relay（K1）Coil between.
4. the driving control system of loop type extractor according to claim 1, it is characterised in that：The hydraulic oil fuel feeding is total
Super oil pressure alarm switch is installed on pipe（PT-H）With low oil pressure alarm switch（PT-L）, the super oil pressure alarm switch（PT-H）
With hydraulic system fault indicator lamp（H4）It is connected to after series connection between the both positive and negative polarity of control loop, the low oil pressure alarm switch
（PT-L）With the 4th normally open contact of main motor control relay（K1-4）With the super oil pressure alarm switch after series connection（PT-H）
It is in parallel.
5. the driving control system of loop type extractor according to claim 2, it is characterised in that：The stall alert delay
Relay（KT1）Coil two ends be parallel with stall alert indicator lamp（H1）, the coil of the high charge level alarm relay (KT2)
Two ends are parallel with high charge level alarm lamp（H2）, it is described to forbid supplied materials relay（K2）Coil two ends be parallel with and forbid supplied materials
Indicator lamp（H5）.
6. the driving control system of loop type extractor according to claim 3, it is characterised in that：The low material position alarm after
The coil two ends of electrical equipment (KT3) are parallel with low material position alarm lamp（H3）.
7. the driving control system of loop type extractor according to any one of claim 1 to 6, it is characterised in that：It is described
Comparator relay（SSR）Including power module, CPU, communication module, input module and relay driving module；The power supply mould
DC24V is converted into DC 5V operating voltages and is supplied to each module by block；The two-way analog signal that CPU transmits the input module
Data signal is converted to, result of calculation is then compared judgement, if the error of two paths of signals value exceedes permissible value, to
The relay driving module output low level makes it drive the comparison signal failure contact action；The communication module is by journey
Sequence downloads in CPU or the data and working condition in CPU is uploaded in host computer；The input module is by receive two
4 ~ 20mA of road current signal is respectively converted into 0 ~ 5V voltage signal, and delivers to CPU two-way input end of analog signal, simultaneously
Play a part of signal isolation；The relay driving module receives the low level control signal that CPU sends row energization of going forward side by side and put
After big, the comparison signal failure contact is set to produce closed action.
8. the driving control system of loop type extractor according to claim 7, it is characterised in that：The power module is used
LM7805 regulator blocks, the CPU uses STC15F2K60S2 single-chip microcomputers, and the communication module uses MAX485 chips, described defeated
Enter module using WS1521 signal isolators.
9. the driving control system of loop type extractor according to claim 1, it is characterised in that：The infuser housing by
Head casing, feed zone, upper extracting stage, lower extracting stage, drain section and tail box body phase is mutually spliced, the ring chain
Upper strata is located at the feed zone and in upper extracting stage, the lower floor of the ring chain is located at the lower extracting stage and drained in section,
The right output port of the feed zone passes through the upper and lower ends phase of flange and the head casing respectively with the right output port for draining section
Connection, the left port of the left port of the upper extracting stage and the lower extracting stage passes through the upper of flange and the afterbody casing respectively
Lower two ends are connected, and the left port of the feed zone is connected with the right output port of the upper extracting stage by flange, the lower leaching
The right output port for going out section is connected with the left port for draining section by flange；The lower drive shaft is located at the head casing
Bottom, the upper guider is located at the top of the head casing, and the upper drive shaft is located at the top of the afterbody casing,
The lower tensioning shaft is located at the bottom of the afterbody casing.
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| CN105820874B (en) * | 2016-05-23 | 2022-12-02 | 迈安德集团有限公司 | Modular annular extractor |
| CN108561466B (en) * | 2018-05-07 | 2024-01-26 | 宁夏天地奔牛实业集团有限公司 | Clutch and brake chain tightening device applicable to power part of coal mine underground scraper conveyor |
| CN110201417B (en) * | 2019-06-26 | 2021-05-07 | 晨光生物科技集团股份有限公司 | Leacher and control method thereof |
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| CN2635675Y (en) * | 2003-09-05 | 2004-08-25 | 武汉友谊食品工程有限公司 | Four-wheel chain drawing device |
| CN202865201U (en) * | 2012-09-27 | 2013-04-10 | 济南中棉生物科技有限公司 | Two-liquid-phase integral type leacher |
| CN203096024U (en) * | 2013-02-04 | 2013-07-31 | 太仓市宝马油脂设备有限公司 | Grease extractor |
| CN104450171A (en) * | 2014-11-28 | 2015-03-25 | 安徽大团结食用油有限公司 | Miniature box-type leacher for special oil |
| CN204935896U (en) * | 2015-04-29 | 2016-01-06 | 四川建设机械（集团）股份有限公司 | Tank of truck mixer drive hydraulic system principle |
| CN204725189U (en) * | 2015-06-10 | 2015-10-28 | 吉林省通用机械有限责任公司 | A kind of holding hydraulic pressure system for knuckle Special Fixture for Machining |
| CN205806052U (en) * | 2016-05-23 | 2016-12-14 | 迈安德集团有限公司 | The driving control system of loop type extractor |
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