Summary of the invention
The object of the invention is to for above-mentioned shortcoming and defect that now both at home and abroad coal picker exists, the anhydrous screening installation of gangue inorganic sulfur in a kind of X ray clean coal of civilian non-power Application of Nuclear Technology high-tech is provided.
The object of the invention is to realize by the following technical solutions: the anhydrous screening installation of gangue inorganic sulfur in this X ray clean coal, for getting rid of middle coal, spoil and the inorganic sulfur of raw coal or lump coal on coal mine well port or ground Coal Transport line, it comprises gangue inorganic sulfur conveyer, wind-power coal picker, spoil inorganic sulfur conveyer, X ray photoelectric effect identification sorter, powdered coal dust-removing unit and electric appliance interlocker able to programme in the raw coal lump coal feed system connecting successively by raw coal or lump coal throughput direction, large grade straight-line oscillation screen system, granule level straight-line oscillation screen system, classification coal queue system, desulfurization discharge refuse conveyer, photoelectric effect detector shield chamber, clean coal, described raw coal lump coal feed system is connected and is located on highest level face with large grade straight-line oscillation screen system, granule level straight-line oscillation screen system is connected on the horizontal plane under large grade straight-line oscillation screen system, large grade straight-line oscillation screen system and granule level straight-line oscillation screen system are connected to the classification coal queue system on its lower horizontal plane jointly, left end under classification coal queue system is provided with desulfurization discharge refuse conveyer, the left side of desulfurization discharge refuse conveyer is provided with photoelectric effect detector shield chamber, the left end of desulfurization discharge refuse conveyer is provided with air valve support, air valve support is provided with middle coal and gets rid of air valve group and spoil inorganic sulfur eliminating air valve group, the left end of air valve support is provided with gangue inorganic sulfur conveyer in clean coal, in clean coal gangue inorganic sulfur conveyer respectively with wind-power coal picker, spoil inorganic sulfur conveyer, clean coal warehousing storage, middle coal crushing system connects, described X ray photoelectric effect identification sorter gets rid of air valve group with the middle coal on photoelectric effect detector shield chamber, air valve support respectively and spoil inorganic sulfur eliminating air valve group is connected, described powdered coal dust-removing unit is arranged on input and the output of raw coal lump coal feed system, described electric appliance interlocker able to programme is connected with each drive motors of screening installation.
Specifically, described large grade straight-line oscillation screen system comprises double-deck seat formula dual-axis vibration sieve, vibratory sieve funnel and lump coal transfer passage; Granule level straight-line oscillation screen system comprises individual layer seat formula dual-axis vibration sieve, lump coal smalls transfer passage; The lower screen panel aperture of the double-deck seat formula dual-axis vibration sieve of large grade straight-line oscillation screen system is less than middle grade screenings, and lower floor's sieve plate is connected to by vibratory sieve funnel on the upper strata sieve plate of individual layer seat formula dual-axis vibration sieve of granule level straight-line oscillation screen system; The smalls coal bunker that the wear-resisting steel plate that the lower floor of the individual layer seat formula dual-axis vibration sieve of granule level straight-line oscillation screen system is atresia is made; Described lump coal transfer passage comprises coarse coal slideway and medium sized coal slideway, and described lump coal smalls transfer passage comprises small coal slideway and smalls slideway.
Specifically, described classification coal queue system involving vibrations is lined up feeder, vibrator; Described vibration is lined up feeder and is connected with vibrator, vibration is lined up feeder and is fixed with successively from top to bottom corresponding three groups and lines up, that is: coarse coal hopper, medium sized coal hopper, small coal hopper and smalls hopper, coarse coal lines up that groove, medium sized coal are lined up groove, groove lined up by small coal and smalls is lined up groove, and coarse coal lines up that output magazine, medium sized coal are lined up output magazine, output magazine lined up by small coal and smalls is lined up output magazine; Described coarse coal hopper, medium sized coal hopper, small coal hopper and smalls hopper respectively correspondence are positioned under described coarse coal slideway, medium sized coal slideway, small coal slideway and smalls slideway.
Specifically, described desulfurization discharge refuse conveyer comprises frame, motorized pulleys, driven cylinder, photoelectric effect identification transportation rubber belt, flat idler group, upper correction edger roll group, lower correction edger roll group, three-phase alternating current frequency converter and noise elimination dust cover; Described photoelectric effect identification transportation rubber belt is provided with some longitudinal photoelectric effect identification raceway grooves.
Specifically, described photoelectric effect detector shield chamber comprises that the interior outerplanar in five of front, back, left, right, up is all the radiation protection shielding wall of being made up of sheet metal clamping lead plate, is provided with photoeffect detector group and the soft X source group of mark in screened room; Photoeffect detector group is positioned on described photoelectric effect identification transportation rubber belt, and corresponding with its photoelectric effect identification raceway groove, and identify soft X source and be mounted under photoelectric effect identification transportation rubber belt, and corresponding one by one with photoeffect detector group.
Specifically, described X ray photoelectric effect identification sorter comprises low-voltage dc power supply, high pressure adjustable DC power supply, linear amplifier, linear ratemeters, rectilinear scanner, steady peak single track, meets anticoincidence scanner, photoelectric effect pulse filter, multiple-pulse delay controller, the Big Dipper and global pick device, controllable rater and instrument chassis; Described photoeffect detector group is to the linear amplifier output clean coal of X ray photoelectric effect identification sorter, middle coal, three kinds of different photoelectric effect pulse signals of spoil inorganic sulfur.
Specifically, described electric appliance interlocker able to programme comprises PLC controller and rack thereof, 3 phase AC solid relay group, electrothermal relay group dropping resistor, fuse group, bipolar band switch; The break contact of electrothermal relay group is concatenated into path with wire, the starting point of this serial connection path is connected with bipolar band switch moving plate I and band switch moving plate II again, and then affixed with the dc source zero volt terminal OV of PLC, serial connection the end of path and each control negative pole of solid-state relay group affixed after, then with each LED
inegative pole affixed, each LED
ipositive pole and the control positive pole of 3 phase AC solid relay affixed; One end of each dropping resistor is affixed with the positive pole of corresponding light emitting diode, and each output that the other end of each dropping resistor is corresponding with PLC controller is affixed; The output of the input of each electrothermal relay heater element and 3 phase AC solid relay group is affixed, and the output of each electrothermal relay heater element and the input of each three-phase alternating-current motor are affixed; The input of one end of each fuse and 3 phase AC solid relay group is affixed, and their other end is in parallel with main circuit affixed, and the input of main circuit is electrically connected with city through air switch; The output winding y of PLC
jquantity and LED
iquantity identical, wherein, i=j=1,2,3 ... 16, j and i are greater than 16 natural number, the output winding X of PLC
kquantity be greater than 43, k=1,2,3 ... 43, k is greater than 43 natural number.
Specifically, the soft X source group of described mark or americium-241 are
241am, or plutonium-238 are
238pu, or
241am and
238the mixing source of Pu.
The course of work of the present invention is:
The anhydrous screening installation of gangue inorganic sulfur in X ray clean coal of the present invention, be mainly used in getting rid of on coal mine well port or ground Coal Transport line middle coal, spoil and inorganic sulfur (raw coal relating to is below the mixture of clean coal, middle coal, spoil, inorganic sulfur and smalls composition) in raw coal or lump coal, make the colliery can be at oneself coal mining well head to each coal-fired user's direct marketing essence lump coal and the smart smalls of the low ash content of low-sulfur.The input of raw coal lump coal feed system and output are all provided with the coal dust dust catcher that powdered coal dust-removing unit separates.Large grade straight-line oscillation screen system is made up of lump coal transfer passage, vibratory sieve funnel and double-deck seat formula dual-axis vibration sieve (linear vibrating screen), and lower floor's sieve plate of this linear vibrating screen is transported to the screenings that is less than middle grade on the upper strata sieve plate of granule level straight-line oscillation screen system by vibratory sieve funnel; Granule level straight-line oscillation screen system comprises lump coal smalls transfer passage and individual layer seat formula dual-axis vibration sieve (linear vibrating screen), the lower floor of this linear vibrating screen is the smalls coal bunker that the wear-resisting steel plate of atresia is made, and this smalls coal bunker is carried smalls to smalls slideway.Spoil inorganic sulfur conveyer is transported to spoil inorganic sulfur to process region.Classification coal queue system is lined up feeder, vibrator, coarse coal hopper, medium sized coal hopper, small coal hopper, smalls hopper, coarse coal by vibration and is lined up groove, medium sized coal and line up groove, small coal and line up groove, smalls and line up groove, smalls and line up output magazine, small coal and line up output magazine, medium sized coal and line up output magazine and coarse coal and line up output magazine and form; In the time that coarse coal enters coarse coal hopper through coarse coal slideway, by vibrator, coarse coal being directed to coarse coal lines up to line up in groove, under gravitational effect, coarse coal drops to coarse coal at the output of lining up groove in freely falling body mode and lines up the input of output magazine and line up for the second time (line up is for the second time to avoid two lump coal mutually to overlap), and the vee of finally lining up output magazine by coarse coal drops to the photoelectric effect first of the photoelectric effect identification transportation rubber belt of desulfurization discharge refuse conveyer and identifies in passage; In the time that medium sized coal enters medium sized coal hopper through medium sized coal slideway, vibrator is directed to medium sized coal by medium sized coal and lines up to line up in groove, under centrifugal force effect, medium sized coal drops to medium sized coal at the output of lining up groove in freely falling body mode and lines up the input of output magazine and line up for the second time (second line up be to avoid two lump coal mutually to overlap), and the vee of finally lining up output magazine by medium sized coal drops in the second identification passage of photoelectric effect identification transportation rubber belt; In the time that small coal enters small coal hopper through small coal slideway, vibrator is directed to small coal by small coal and lines up to line up in groove, under centrifugal force effect, small coal drops to small coal at the output of lining up groove in freely falling body mode and lines up the input of output magazine and enter for the second time to line up (line up is for the second time also to avoid two lump coal pieces mutually to overlap), and the vee of finally lining up output magazine by small coal drops in the 3rd identification passage of photoelectric effect identification transportation rubber belt; In the time that smalls enters smalls hopper through smalls slideway, vibrator is directed to smalls by smalls and lines up to line up in groove, under gravitational effect, smalls drops to smalls at the output of lining up groove in freely falling body mode and lines up the input of output magazine and line up for the second time, and the triangle output breach of finally lining up output magazine by smalls drops in the 4th identification passage of photoelectric effect identification transportation rubber belt.Desulfurization discharge refuse conveyer is made up of motorized pulleys, flat idler group, upper correction edger roll group, lower correction edger roll group, photoelectric effect identification transportation rubber belt, frame, driven cylinder, three-phase alternating current frequency converter and noise elimination dust cover; By the photoelectric effect identification transportation rubber belt of motorized pulleys and the tension of driven cylinder, under the flat idler group in frame, upper correction edger roll group, the acting in conjunction of lower correction edger roll group, the horizontal cross of photoelectric effect identification transportation rubber belt is swung in be limited in ± 0.8mm, make each central point identifying on the each identification passage on soft X source group and photoeffect detector group and photoelectric effect identification transportation rubber belt become straight line, make the present invention approach 100% to the correct recognition rata of the clean coal in raw coal, middle coal, spoil inorganic sulfur.Being fixed on noise elimination dust cover on dust cover and the air valve support in frame drops to noise to be less than 90 decibels, to make the coal dust content <18mg/m of gas leakage
3.Three-phase alternating current frequency converter changes the linear velocity of motorized pulleys between 0.6 meter per second-1.2 meter per second, and the diameter of motorized pulleys is greater than and vibrates the height of lining up feeder.Fine coal dedusting unit is made up of several fine coal dust catchers and fine coal dust removal machine main frame.The inside of photoelectric effect detector shield chamber is made up of photoeffect detector group and the soft X source group of mark, and five the interior outerplanars that all around above wait of this detector shield chamber are all the radiation protection shielding walls of being made by sheet metal clamping lead plate.X ray photoelectric effect identification sorter is by low-voltage dc power supply, high pressure adjustable DC power supply, linear amplifier, linear ratemeters, rectilinear scanner, steady peak single track, meet anticoincidence scanner, photoelectric effect pulse filter, multiple-pulse delay controller, the Big Dipper and global pick device, controllable rater and instrument chassis composition, photoeffect detector group can be to the linear amplifier output clean coal of X ray photoelectric effect identification sorter, middle coal, three kinds of different photoelectric effect pulse signals of spoil inorganic sulfur, when the clean coal pulse signal of linear amplifier enters while meeting anticoincidence scanner, making middle coal eliminating air valve group and spoil inorganic sulfur get rid of air valve group is all failure to actuate, clean coal all drops to by horizontal projectile motion trajectory in the clean coal passage of gangue inorganic sulfur conveyer in clean coal, be transported to again the warehousing storage of clean coal, in the time that linear amplifier is received the photoelectric effect pulse signal of middle coal, this pulse signal enters linear ratemeters and multiple-pulse delay controller through steady peak single track, making coal get rid of air valve group starts and middle coal is all rejected in the middle coal channel or middle coal inorganic sulfur passage of gangue inorganic sulfur conveyer in clean coal, be transported to again broken process and clean coal recovery process, be used for improving clean coal recovery, in the time that linear amplifier is received the photoelectric effect pulse signal of spoil inorganic sulfur, this pulse signal is after photoelectric effect pulse filter enters steady peak single track and rectilinear scanner, make spoil inorganic sulfur get rid of air valve group and start and spoil inorganic sulfur is all rejected on spoil sulphur conveyer, then be transported to the processing place of spoil inorganic sulfur, the Big Dipper and global pick device comprise Big Dipper positioning terminal apparatus, GPS global location device, markon is locating terminal slightly, and in order to the longitude and latitude of the monitoring soft X source group of mark and X ray photoelectric effect identification sorter, controllable automatic charging device is in order to regularly to collect user and coal-fired user's fund.Line up output magazine by smalls and be given to the smalls in the 4th identification all of photoelectric effect identification transportation rubber belt, after identifying soft X source group irradiation, spoil inorganic sulfur corresponding to the 4th identification passage that the photoelectric effect pulse signal of spoil inorganic sulfur that is greater than 10mm is transferred to photoelectric effect identification transportation rubber belt by photoeffect detector group got rid of air valve group, approximately 90% the spoil inorganic sulfur that is greater than 10mm in smalls is rejected in the middle gangue inorganic sulfur passage of gangue inorganic sulfur conveyer in clean coal, smalls is processed into and easily selects smalls, to easily select smalls to be transported to the feeding mouth of wind-power coal picker again, heightening and consolidation of the present invention the frame of wind-power coal picker and the steel plate of appearance thereof, the device for discharging of the sorting bed body of wind-power coal picker being discharged to clean coal and spoil inorganic sulfur lengthens, make it to become clean coal efferent duct and successively discharge clean coal, and spoil inorganic sulfur efferent duct can be discharged spoil inorganic sulfur continuously, the present invention has also adjusted the vibration frequency of vibrator, and its desulfurization discharge refuse performance and discharge ability are all improved accordingly, thereby makes the present invention obtain the low ash content essence of low-sulfur smalls.
In the present invention, can be separate unit through improved wind-power coal picker, also can be many.The compass screen surface number of plies of large grade linear vibrating screen and granule level linear vibrating screen can be that a compass screen surface is that double-deck another compass screen surface is individual layer, can be also that two compass screen surfaces are all double-deck.In the time that raw coal lump coal feed system is only supplied with lump coal, smalls hopper, smalls are lined up groove and smalls and are lined up that output magazine correspondingly becomes tiny lump coal hopper, groove lined up by tiny lump coal and tiny lump coal is lined up output magazine, and bulk cleaned coal, middle block of cleaned coal, fritter cleaned coal and tiny block of cleaned coal are processed into lump coal in the present invention.
Authority detects the equipment such as unit 470A-six.y dosemeter detecting in the present invention
241am and
238the result of the leakage rediation of two kinds of soft X sources of mark of Pu is as follows: when
241am and
238when Pu is in store status, the surperficial leakage rediation level in six of the front, back, left, right, up, down of source container is background; When
241a and
238when Pu is in duty, the front, rear, left and right of source container,, lower five surperficial leakage rediation levels are background, radiation leakage level from 1 meter of of vessel surface is all less than 0.5usv/n, therefore, the present invention meets the requirement of the People's Republic of China (PRC) " the safe basic standard of ionization radiation protection and radiation source " (GB18871-2002) regulation.
Water becomes water vapour in the combustion chamber of coal-burning boiler, consume a large amount of heat energy, and therefore, moisture becomes the harmful components in coal, and non-aqueous technique of the present invention has reduced the objectionable impurities water in cleaned coal, has avoided the secondary pollution of black water to surrounding enviroment.Moisture in the cleaned coal of producing with the present invention, lower than the moisture of raw coal, can be that country saves a large amount of transport power, and for having saved a large amount of water resources in coal main producing region.The each composition of mechanical movement identification raw coal lump coal for modern wet process coal cleaning machine, the present invention uses
241am and
238the each composition of the soft X-ray bundle identification coal of the mark of two kinds of nucleic radiation of Pu, makes coal separation consumption rate of the present invention be about 1/3rd of modern wet process coal cleaning factory; The operating ambient temperature of modern wet process coal cleaning machine is+1 DEG C-+40 DEG C, in the time that operating ambient temperature is down to 0 DEG C, wash water freezes, make wet method gravity coal machine can only carry out seasonal interruption production, operating ambient temperature of the present invention expands to-40 DEG C-+40 DEG C, the coal separation that can throughout the year go into operation in all parts of the world, has increased substantially the utilization rate of equipment; In approximately 180 seconds of the shortest coal washing time of modern wet process coal cleaning machine, in the longest approximately 9 seconds of coal separation time of the present invention, be 1/20th of the modern wet process coal cleaning time, increased substantially the production efficiency of coal separation industry; Owing to not consuming wash water and having saved a large amount of electric power, make approximately 10 yuan/ton of coal separation costs of the present invention, be 1/3rd of approximately 30 yuan/ton of modern wet process coal cleaning costs; Spoil elimination factor and the inorganic sulphur-cake removal efficiency of modern wet process coal cleaning machine are 50%-70%, and the removal efficiency of spoil elimination factor of the present invention and inorganic sulfur is 90% left and right, higher 20-40 percentage points than modern wet process coal cleaning machine; Modern wet process coal cleaning machine will lose 3%-4% coal slime in technological process, makes clean coal recovery be about 94%, and clean coal recovery of the present invention approximately 98%, than high approximately 4 percentage points of modern wet process coal cleaning machine, has improved the utilization rate of cleaned coal; Domestic so far also can only the easy coal separation of the little grade of sorting at the anhydrous wind-power coal picker using, can not sorting medium can coal separation and difficult separation coal, its occupation rate of market is very little, cannot meet the needs of the new seven provinces and regions coal minings of the sweet peaceful green grass or young crops in China Jin Meng Shan, the present invention not only can use the easy coal separation of the large, medium and small wholegrain level of non-aqueous technique sorting, and can the medium optional raw coal of anhydrous sorting wholegrain level and wholegrain level difficulty select raw coal and wholegrain level extremely difficulty select raw coal; Under same kind of products at abroad Britain X ray coal picker selected, be limited to 32mm, can not sorting smalls, can only sorting be greater than the lump coal of 32mm, its smart lump coal rate of recovery is 80% always, a large amount of smart lump coal that run off, is had a strong impact on the economic benefit in colliery, cannot enter coal separation industrial market; Feed particle size of the present invention can reach 200mm, under feed particle size, is limited to 0mm, can make various coal-fired users use the low ash content essence lump coal of low-sulfur and the low ashes essence of low-sulfur smalls; The investment of the little lightweight fixed assets of volume of the present invention is about 1/2nd of wet method gravity coal washer, and therefore, the present invention is the environment-friendly products of the low running cost of the little lightweight energy-saving and water-saving reduced investment of a kind of volume.Utilize the present invention to build large, medium and small various types of near coal-mine anhydrous coal preparation plant at coal mine well port, increase substantially the selected ratio of China's raw coal.Operation principle of the present invention is X ray photoelectric effect president face law T=CZ
ef 4enter
3, C is certain constant, Z
effor the effective atomic number of illuminated material, enter for X ray wavelength, the present invention also can divide other mineral products.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the present embodiment comprises and is arranged on coal mine well port or ground Coal Transport line four different altitude heights and the installations and facilities of serial connection successively: the equipment of the first height above sea level (the highest height above sea level) has large grade straight-line oscillation screen system 3 and raw coal lump coal feed system 2, the second height above sea level is provided with granule level straight-line oscillation screen system 4, between the first height above sea level and the second height above sea level, be provided with vibratory sieve funnel 27, raw coal or lump coal 26 enter the classification coal queue system 6 of the 3rd height above sea level through large grade straight-line oscillation screen system 3 and granule level straight-line oscillation screen system 4, between the second height above sea level and the 3rd height above sea level, be provided with the coarse coal slideway 62 of lump coal transfer passage 23, medium sized coal slideway 63, built-in structure part 64, the small coal slideway 65 of lump coal smalls transfer passage 24, smalls slideway 66, the lower end of classification coal queue system 6 is that feeder 25 and vibrator 28 are lined up in vibration, the right side of classification coal queue system 6 is provided with that coarse coal hopper 29, coarse coal are lined up groove 33, large fast coal is lined up output magazine 40, the left side of classification coal queue system 6 is equipped with that smalls hopper 32, smalls are lined up groove 36, smalls is lined up output magazine 37, and the middle part of classification coal queue system 6 is provided with medium sized coal hopper 30, medium sized coal and lines up groove 34, medium sized coal and line up that output magazine 39 and small coal hopper 31, small coal are lined up groove 35, small coal is lined up output magazine 38, the equipment of another the 3rd height above sea level is photoelectric effect detector shield chamber 9, and the top in photoelectric effect detector shield chamber 9 is provided with photoeffect detector group 21, and the middle part in photoeffect detector screened room 9 is provided with the soft X source group 22 of mark, the 4th height above sea level (minimum height above sea level) is provided with gangue inorganic sulfur conveyer 12, noise elimination dust cover 49 and air valve support 18 in electric appliance interlocker 1 able to programme, spoil inorganic sulfur conveyer 5, desulfurization discharge refuse conveyer 7, fine coal dedusting unit 8, X ray photoelectric effect identification sorter 10, wind-power coal picker 11, clean coal, spoil inorganic sulfur conveyer 5 is transported to spoil inorganic sulfur 15 to process place, desulfurization discharge refuse conveyer 7 comprises motorized pulleys 41, flat idler group 42, upper correction edger roll group 43, lower correction edger roll group 44, photoelectric effect identification transportation rubber belt 45, frame 46, driven cylinder 47, three-phase alternating current frequency converter 48 and noise elimination dust cover 49, fine coal dedusting unit 8 makes the coal dust content of position, the each space of whole production site of the present invention gas all be less than 18mg/m
3, X ray photoelectric effect identification sorter 10 comprises low-voltage dc power supply 50, high pressure adjustable DC power supply 51, rectilinear scanner 52, linear ratemeters 53, linear amplifier 54, steady peak single track 55, meets anticoincidence scanner 56, photoelectric effect pulse filter 57, multiple-pulse delay controller 58, the Big Dipper and global pick device 59, controllable rater 60 and instrument chassis 61, wind-power coal picker 11 is on the technical characterictic basis of traditional wind-power coal picker, to have increased the height of frame and the steel plate of device outer surface, adjust the vibration frequency of the vibrator in wind-power coal picker, make device for discharging become clean coal efferent duct 16, constantly discharge clean coal 14 to gangue inorganic sulfur conveyer 12 in clean coal by this clean coal efferent duct 16, another discharge port of wind-power coal picker 11 lengthens as spoil inorganic sulfur efferent duct 20, and this spoil inorganic sulfur efferent duct 20 is constantly discharged spoil inorganic sulfur 15 to spoil inorganic sulfur conveyer 5, in clean coal, gangue inorganic sulfur conveyer 12 is constantly transported to appointed place by clean coal 14, middle coal 13, spoil inorganic sulfur 15, middle coal is installed on noise elimination dust cover 49 and air valve support 18 and gets rid of air valve group 17 and spoil inorganic sulfur eliminating air valve group 19.
Referring to Fig. 6, electric appliance interlocker 1 able to programme comprises PLC controller, 3 phase AC solid relay group, dropping resistor, light emitting diode, electrothermal relay group, fuse group, bipolar band switch moving plate I 67 and band switch moving plate II 68, the output winding y of PLC
jquantity and LED
iquantity identical, have i=j=1,2,3 ... 16, j and i are greater than 16 natural number, the output winding X of PLC
kquantity be greater than 43, k=1,2,3 ... 43, k is greater than 43 natural number.
In X ray clean coal of the present invention, gangue inorganic sulfur is poly-as follows without the operation step of wet concentration screening installation:
Referring to Fig. 1, Fig. 2, Fig. 4 and Fig. 5, before start operation, first detect raw coal lump coal feed system 2, large grade straight-line oscillation screen system 3, granule level straight-line oscillation screen system 4, spoil inorganic sulfur conveyer 5, desulfurization discharge refuse conveyer 7, powdered coal dust-removing unit 8, photoelectric effect detector shield chamber 9, wind-power coal picker 11, the earth resistance of gangue inorganic sulfur conveyer 12 electromechanical components such as grade and the earth in clean coal, their earth resistance is all less than 4 Europe mothers; The earth resistance of X ray photoelectric effect identification sorter 10 is also less than 4 Europe mothers, but the relative distance of the earth electrode of its earth electrode and other electromechanical components is greater than 4 meters; Second step detects the technical indicator of input and output cable; The pre-thermal X-rays photoelectric effect of the 3rd step identification sorter, after 10 approximately 10 minutes, is opened the gate of the soft X source group 22 of mark, compares background and without the stability of covering two kinds of counting rates, adjusts the operating voltage of high pressure adjustable DC power supply 51.
The operating instruction of carrying out semi-automatic sequence starting is as follows:
Press the button SB
1, the input terminal X of PLC
1connect with 24V dc source, through the left and right bus of ladder diagram, input coil X
1energising, makes output winding y
0energising, dropping resistor R
1make the LED in photoelectrical coupler
0produce luminous potential difference, this luminous current potential official post 3 phase AC solid relay SSR
0conducting, SSR
0conducting makes the motor M of fine coal dedusting unit 8 correspondences
0start and continuous operation LED
0corresponding phototransistor T
0produce photoelectric current, T
0colelctor electrode and the+affixed input terminal X that makes of 24V
23corresponding input coil X
23energising, as motor M
0when startup and continuous operation, just start to absorb fine coal dust to workplace of the present invention, ensure the content <18mg/m of workplace of the present invention coal dust
3; As motor M
0while turning round for 6 second, the program in PLC makes output winding y
1energising, output winding y
1energising makes dropping resistor R
3and LED
1all produce potential difference, LED
1luminous current potential official post 3 phase AC solid relay SSR
1conducting, SSR
1conducting makes the motor M of spoil inorganic sulfur conveyer 5 correspondences
1start and continuous operation, for defeated pound spoil inorganic sulfur is got ready; LED
1corresponding phototransistor T
1produce photoelectric current, T
1colelctor electrode and the+affixed input terminal X that makes of 24V
24corresponding input coil X
24energising; As motor M
1when 6 second of continuous operation, the program in PLC makes output winding Y
2energising, output winding Y
2energising makes dropping resistor R
5and LED
2all produce potential difference, this luminous current potential official post 3 phase AC solid relay SSR
2conducting, SSR
2conducting makes the motor M of gangue inorganic sulfur conveyer 12 correspondences in clean coal
2start and continuous operation, for carrying clean coal, middle coal, spoil inorganic sulfur to get ready to appointed place; LED
2conducting makes corresponding phototransistor T
2produce photoelectric current, T
2colelctor electrode affixed and make input terminal X with+24V
25corresponding input coil X
25energising; As motor M
2when 6 second of continuous operation, the program in PLC makes output winding Y
3energising, output winding Y
3energising makes dropping resistor R
7and LED
3all produce potential difference, LED
3luminous current potential official post 3 phase AC solid relay SSR
3conducting, SSR
3conducting makes the motor M of wind-power coal picker 11 correspondences
3start and continuous operation, get ready for wind-power coal picker 11 will easily select smalls to be processed into the low ash content essence of low-sulfur smalls, make LED simultaneously
3corresponding transistor T
3produce photoelectric current, T
3colelctor electrode and+24V
1the affixed input terminal X that makes
26corresponding input coil X
26energising; As motor M
3while transporting for 6 second continuously, the program of PLC makes output winding Y
4energising, output winding Y
4energising makes dropping resistor R
9and LED
4all produce potential difference, LED
4luminous current potential official post 3 phase AC solid relay SSR
4conducting, SSR
4conducting makes the motor M of desulfurization discharge refuse conveyer 7 correspondences
4start and continuous operation, get ready for the present invention carries raw coal or lump coal to carry out discharge refuse desulfurization, make LED simultaneously
4corresponding phototransistor T
4produce photoelectric current, T
4colelctor electrode and the+affixed input terminal X that makes of 24V
27corresponding input coil X
27energising; As motor M
4while transporting for 6 second continuously, the program of PLC makes output winding Y
5energising, output winding Y
5energising makes dropping resistor R
11and LED
5all produce potential difference, LED
5luminous current potential official post 3 phase AC solid relay SSR
5conducting, SSR
5conducting makes the motor M of granule level straight-line oscillation screen system 4 correspondences
5start and continuous operation, get ready for the conveying that granule level straight-line oscillation screen system 4 screens small coal and smalls, make LED simultaneously
5corresponding phototransistor T
5produce photoelectric current, T
5colelctor electrode and the+affixed input terminal X that makes of 24V
30corresponding input coil X
30energising; Now want closed vibration to line up the power switch of feeder 25, make it produce coal supply amplitude.As motor M
5while transporting for 6 second continuously, the program of PLC makes output winding Y
6energising, output winding Y
6energising makes dropping resistor R
13and LED
6all produce potential difference, LED
6luminous current potential official post 3 phase AC solid relay SSR
6conducting, SSR
6conducting makes the motor M of large grade straight-line oscillation screen system 3 correspondences
6start and continuous operation, for large grade straight-line oscillation screen system 3 screens coarse coal and medium sized coal is got ready, make LED simultaneously
6corresponding phototransistor T
6produce photoelectric current, T
6colelctor electrode and the+affixed input terminal X that makes of 24V
31corresponding input coil X
31energising.As motor M
6while transporting for 6 second continuously, the program of PLC makes output winding Y
7energising, output winding Y
7energising makes dropping resistor R
15and LED
7all produce potential difference, LED
7luminous current potential official post 3 phase AC solid relay SSR
7conducting, SSR
7conducting makes the motor M of raw coal lump coal feed system 2 correspondences
7start and continuous operation, for the present invention supplies with raw coal or lump coal is got ready, make LED simultaneously
7corresponding phototransistor T
7produce photoelectric current, T
7colelctor electrode and the+affixed input terminal X that makes of 24V
32corresponding input coil X
32energising.Motor M
7continuous operation, make raw coal or lump coal 26 supply to all parts of the present invention, each knob of feeder 25 is lined up in intense adjustment vibration, raw coal or lump coal are continuously transported to large grade straight-line oscillation screen system 3 through raw coal lump coal feed system 2, granule level straight-line oscillation screen system 4, classified coal queue system 6 drops on the transportation rubber belt 45 of desulfurization discharge refuse conveyer 7 and identifies sorting again, clean coal 14 on gangue inorganic sulfur conveyer 12 in clean coal is transported to warehouse, by the middle coal 13 on gangue inorganic sulfur conveyer 12 in clean coal, spoil inorganic sulfur 15 on spoil inorganic sulfur 15 and spoil inorganic sulfur conveyer 5 is transported to processes place, just realize anhydrous coal separation of the present invention.
The operation step of carrying out semi-automatic backward shutdown is poly-as follows:
The first step is cut off raw coal or lump coal supply, makes clean coal all arrive warehouse; Second step presses the button SB
2, input coil X
2energising, eight motor are pressed M
7, M
6, M
5, M
4, M
3, M
2, M
1, M
0order progressively shut down; The 3rd step is closed the soft X source group 22 of mark; The 4th step is closed the power supply of X ray photoelectric effect identification sorter 10, and the 5th step is cut off and vibrated the power supply of lining up feeder 25, and the 6th step disconnects air switch Q, and the present invention and civil power are disconnected.
Operation step when detecting and repairing is poly-as follows:
First by toggle switch KNX
0, (SB
0) press, make input coil X
0energising, X in ladder diagram
0break contact all disconnect, and X
0moving together contact all closed.Press respectively again SB
3, SB
5, SB
7, SB
11, SB
13, SB
15, SB
17, SB
21on eight buttons, motor M
0, M
1, M
2, M
3, M
4, M
5, M
6, M
7, etc. eight motor motivations intermittently start; After detecting or repairing, as long as press SB
22, SB
20, SB
16, SB
14, SB
12, SB
10, SB
6, SB
4, eight motor are just according to M
7, M
6, M
5, M
4, M
3, M
2, M
1, M
0, order all shut down successively.