CN204779473U - Prevent pyrolysis of coal of dust and carry matter rotary furnace - Google Patents

Abstract

The utility model provides a prevent pyrolysis of coal of dust and carry matter rotary furnace, including rotatory barrel, furnace end air duct, feed arrangement and discharging device, the outer heating jacket of barrel, transmission, riding wheel and keep off parts such as wheel device, be equipped with special end face seal structure between furnace end and the stove tail sound part, press from both sides the cover both ends and be equipped with that to press from both sides the cover sealed, be equipped with temperature measuring device in the rotary furnace barrel.

Description

A kind of improving quality of coal by pyrolysis rotary kiln of anti-dust

Technical field

The utility model belongs to technical field of coal chemical industry, is specifically related to a kind of improving quality of coal by pyrolysis rotary kiln of anti-dust.

Technical background

In recent years, along with going from bad to worse of the northern area of China atmospheric environment, how efficient and rationally utilize coal resources, avoid coal directly to burn use, more and more obtain the attention of domestic scholars.And produce high value added product by the method for improving quality of coal by pyrolysis, be effective way that is clean, that utilize coal resources efficiently.

At present, the domestic equipment for improving quality of coal by pyrolysis mainly contains vertical retort and stationary heat carrier dry distillation of coal fluidized-bed etc.Wherein, vertical retort uses largest, and equipment is simple, it is less to invest, but also there is many shortcomings, such as only can use lump coal, generation caloric power of gas low and can not use as industrial chemicals; And stationary heat carrier dry distillation of coal fluidized-bed is still not mature enough technically, cannot large-scale promotion.

In addition, also have a lot of mechanism and scholar's research to adopt rotary furnace equipment to carry out improving quality of coal by pyrolysis, this equipment have that investment is low, oil yield rate and factor of created gase is high, can process the advantages such as fine coal, therefore there is good prospect, obtain increasing attention.

CN1066459A discloses the low middle temperature fast pyrolysis process of external-heat in a kind of multistage rotary kiln gaseous heat-carrier (being called for short MRF technique).The exploitation route of this technique is carried out in three rotary kilns respectively coal drying, pyrolysis and cooling, quenching that the drying of employing heat smoke internal heat type, external-heat pyrolysis, internal heat type carburetting hot-work, vibratory screening apparatus are sprayed water.Wherein, in carburetting stove, be heated to 800-850 DEG C through internal heat type, make the further pyrolysis of semicoke generate shot coke, the high-temperature gas mixture of generation imports pyrolysis heater.This art breading raw coal size is 3-30mm, cannot solve the pyrolysis problem of particle diameter at the fine coal of 0-3mm.

CN101608126A discloses a kind of device for improving quality of coal by pyrolysis.This device mainly comprises rotary dryer, pyrolyzer, heating rotary kiln, and wherein rotary dryer is provided with tube-in-tube structure, and feed coal and hot semicoke can be made to realize indirect heat exchange, simultaneously cooling heat semicoke.The dominating process route that this device realizes pyrolysis of coal is: first feed coal flows direct heat exchange with hot flue gases in rotary dryer, high-temperature hot semicoke in moisture-free coal and heating rotary kiln then by rotary dryer urceolus and original coal indirect heat exchange, is then mixed into pyrolyzer through screw mixer and carries out pyrolysis by hot semicoke by a certain percentage; Semicoke part after pyrolysis is used as heat drying coal, and partially recycled is that product is burnt, and the coal gas produced in process supplies heating rotary kiln combustion heating semicoke, recovery part tar simultaneously.The advantage of this device for improving quality of coal by pyrolysis is flexible operation, and the semicoke produced and quality of coke tar are better, and achieves cascaded utilization of energy, and system thermal efficiency is also higher.But there is tube-in-tube structure rotary dryer processed complex in this device, pyrolyzer is that batch reactor can not realize the problems such as operate continuously.

CN103074095A, on the basis of CN101608126A, changes pyrolyzer pattern into rotary kiln, and solving original pyrolyzer can not the problem such as operate continuously.This pyrolysis rotary kiln inside is provided with screen cloth, pyrolysis char be divide into fines and coarse fodder, and as product semicoke after fines cooling, coarse fodder returns after heating rotary kiln heats up and returns revolution pyrolysis oven as thermal barrier.Hot semicoke fines no longer cools at rotary dryer urceolus and original coal indirect heat exchange simultaneously, changes multiple coil cooler into, has avoided the problem of tube-in-tube structure rotary dryer processed complex.

But still there is insoluble problem, i.e. a dust problem in current improving quality of coal by pyrolysis rotary kiln in operational process.When adopting rotary kiln to carry out improving quality of coal by pyrolysis, owing to containing a large amount of fine coal in raw material, in addition the gyroscopic characteristics of rotary kiln, its inside in rotary kiln operation process is made to there is a certain amount of dust, these dust and the larger reactant gases of viscosity mix, very easily block the rotary kiln air guide mouth of pipe, and cause the dust content in tar and coal gas higher, cause the difficulty of subsequent technique process.

Summary of the invention

For defect and the deficiency of prior art, the utility model provides a kind of improving quality of coal by pyrolysis rotary kiln of anti-dust, and this equipment has carried out industrial large-sizedization, continuously long-term operation, solves the dust problem in improving quality of coal by pyrolysis production process.

For realizing this technical assignment, the technical solution adopted in the utility model is: a kind of improving quality of coal by pyrolysis rotary kiln of anti-dust is primarily of parts compositions such as rotary barrel, airway, feeding unit and drawing mechanism, cylindrical shell external heating jacket, transmission mechanism, support roller and catch wheel devices, external heating jacket is provided with gas approach and exhanst gas outlet, in addition, special end face sealed structure is provided with between burner and stove tail sound parts, chuck two ends are provided with chuck sealing, for accurately measuring temperature of charge distribution in stove, in rotary kiln cylindrical shell, be provided with temperature measuring equipment.

The utility model relates to a kind of improving quality of coal by pyrolysis rotary kiln of anti-dust, comprise rotary barrel 5, external heating jacket 7, burner airway 2, feeding unit 20, drawing mechanism, transmission mechanism 18, master wheel 8, riding wheel apparatus 15, rolling ring 9, catch wheel device 17, described drawing mechanism comprises spiral shell ring 11, feed box 12, discharge port 13; Described external heating jacket 7 is provided with gas approach 16 and exhanst gas outlet 10, and burner and stove tail are provided with combined sealing structure 4, and described external heating jacket 7 two ends are provided with chuck sealing 6, are provided with temperature measuring equipment 19 in described rotary barrel 5.

Further, welding spiral charging guide plate 21 in described rotary barrel 5 internal surface length range, anti-dust inner core 26 is being welded on the described spiral charging guide plate 21 within the scope of burner certain length, on described anti-dust inner core 26, a circle venting hole is opened at interval of certain length, not etc., the position number of aperture that gas production rate is large is not many for venting hole quantity on each circle;

When described anti-dust inner core 26 length is longer, described anti-dust inner core 26 can be divided into multistage manufacture, each section of anti-dust inner core only welds with described spiral charging guide plate 21 one end, the other end retractable, keep at a certain distance away between adjacent two sections of described anti-dust inner cores 26, near one end of burner welding baffle plate 27 on described anti-dust inner core 21, described baffle plate 27 center drilling, opening diameter is more bigger than the external diameter of burner airway 2, described burner airway 2 is connected with the quiet end cap of burner by corrugated tube 14, and extend in described anti-dust inner core 26 through the quiet end cap of burner, and apart from baffle plate 27 certain distance described in end, and opening for feed is positioned at described baffle plate 27 outside.

Further, arrange stock pusher 1 in described burner airway 2, described stock pusher 1 is driven by motor, and presses certain frequency operation, is again shifted onto in described rotary kiln by the dust entered in described burner airway 2.

Further, described feeding unit 20 is the screw feeding device of independently translator driving, and described screw feeding device is connected with the quiet end cap of burner by described corrugated tube 14, and it is inner that blanking port is deep into described rotary barrel 5 through burner quiet end cap bottom.

Further, described drawing mechanism comprises the spiral shell ring 11 of many groups flight 25 of interior welds, feed box 12 and discharge port 13, it is inner that described spiral shell ring 11 stretches into described rotary barrel 5 through the centre hole on stove tail end cover, and be welded and fixed with stove tail end cover, rotate with described rotary barrel 5, described spiral shell ring 11 the other end stretches in described feed box 12, stove tail end cover is evenly welded with multiple hopper 24, the charging breach that width is slightly wider than described hopper 24 is had in the corresponding position of described spiral shell ring 11, when rotary kiln operates, the material of body of heater inner bottom part is taken up by the described hopper 24 rotated, when running to certain altitude, material is due in action of gravity falls within described spiral shell ring 11, then be transported in described feed box 12 by the spiral plate 25 in described spiral shell ring 11, discharged out of the furnace by described discharge port 13 again.

Further, described cylindrical shell external heating jacket 7 is made up of with running chuck 23 the fixing chuck 22 that structure is different, described running chuck 23 is welded on the position of described rotary barrel 5 being installed master wheel 8 and rolling ring 9, described fixing chuck 22 is arranged on the position of described rotary barrel 5 installing outside described master wheel 8 and described rolling ring 9, between described fixing chuck 22 and described running chuck 23 and between described fixing chuck 22 two ends and described rotary barrel 5, described chuck is set seals 6, described fixing chuck 22, formation one is through along described rotary barrel 5 total length together for described running chuck 23 and described chuck sealing 6, non-separately independently, full heating jacket structure.

Further, according to the length of described rotary kiln, two groups or many group riding wheel apparatus 15 are set, described riding wheel apparatus 15 comprises support roller 31, supporting-roller shaft 32, bearing 33, bearing support 28, described supporting-roller shaft bearing 28 thickeies design, and water coolant water channel is set in described bearing support 28 inside, at described supporting-roller shaft bearing 28 back side, water inlet pipe 29 and rising pipe 30 are set, described water inlet pipe 29, described rising pipe 30 is threaded connection with water coolant water channel, water coolant flows into after water channel through water inlet pipe and carries out sufficient heat exchange with bearing support 28, and then flow out through rising pipe, riding wheel apparatus 15 can be made to be in lesser temps state all the time.

Further, described burner airway 2 and between described feeding unit 20 and rotary kiln burner end cap, and between described feed box 12 and described spiral shell ring 11, described combined sealing structure 4 is set, described combined sealing structure 4 comprises rotary packing ring 42 and stationary seal ring 41, described rotary packing ring 42 is fixed on rotary kiln burner end cap or described spiral shell ring 11 by rotating seat 43, described stationary seal ring 41 is fixed on described stationary seat 40, described stationary seat 40 is by described corrugated tube 14 and described burner airway 2, described feeding unit 20 or described feed box 12 are connected, along described stationary seat 40 circumference, multiple cylinder 3 is set, under the effect of described cylinder 3 pressure, described rotary packing ring 42 is fitted all the time with described stationary seal ring 41, form mechanical seal, realize first sealing,

Described stationary seal ring 41 welds a sealing-ring 39, described sealing-ring 39 is divided into graphite-filled chamber and packing groove two portions, described graphite-filled chamber is positioned at the circumferential exterior of described stationary seal ring 41, described packing groove is positioned at the circumferential exterior of described rotary packing ring 42, Graphite Powder 99 is full of in graphite-filled chamber, the trim of described stationary seal ring 41 upper part has several grooves, and with described graphite-filled chamber UNICOM, Graphite Powder 99 in described graphite-filled chamber constantly enters described rotary packing ring trim successively by the groove of described stationary seal ring 41 trim, described stationary seal ring trim, at described rotary packing ring trim, lubrication is played between described stationary seal ring trim, described several Graphite Powder 99 opening for feeds of sealing-ring 39 upper weld, and be connected with Graphite Powder 99 holder, ensure that the Graphite Powder 99 in described graphite-filled chamber uninterruptedly adds, in the packing groove of described sealing-ring 39, lock packing 34 is installed, and by gland 36 press seal filler 34, push bolt 37 and spring 35 are set on the packing groove of sealing-ring 39 simultaneously, at push bolt 37 and spring 35 under effect, lock packing 34 fits tightly with the circumferential outer surface of the rotary packing ring 42 rotated all the time, form packing seal, realize second sealing.

Further, described temperature measuring equipment 19 is set to the thermopair 45 installing a band protective tube 44 on described rotary barrel 5 inwall, described protective tube 44 is fixed by the multiple pipe clamps 49 be welded on described rotary barrel 5 inwall, described pipe clamp 49 diameter is slightly larger than described protective tube 44, described thermopair 45 and described protective tube 44 retractable in described pipe clamp 49, so the thermal expansion avoiding described rotary barrel 5 is on the impact of described thermopair 45 and described protective tube 44, temperature probe 50 on described thermopair 45 in described protective tube 45 and described protective tube 44 inwall close contact,

Described thermopair 45 length suitably can adjust according to processing requirement, and when requiring point for measuring temperature more, described thermopair 45 can select branched thermopair; Described thermopair 45 and the position of described protective tube 44 without heating jacket on the rotation outer wall of rotary kiln are stretched out outside rotary kiln; after flange 48 seals; wireless temperature transmitter 46 is connected by signal cable 47; wireless temperature transmitter 46 is fixed on the rotation outer wall of rotary kiln by support, rotates with rotary kiln.

Improving quality of coal by pyrolysis rotary kiln of the present utility model has the following advantages:

(1) the utility model can prevent the airborne dust situation of rotary kiln in operation process effectively, and the dust solved in equipment and pipeline gathers the problem resulted in blockage, and can guarantee equipment long-term operation;

(2) drawing mechanism of the present utility model adopts driven form, without the parts such as drive-motor and bearing, can improve the security of the drawing mechanism under the stove tail condition of high temperature, operability;

(3) heat smoke in external heating jacket of the present utility model is evenly distributed, and can heat rotary kiln rotary barrel total length, effectively can improve overall heat exchange efficiency and the throughput of rotary kiln;

(4) supporting-roller shaft bearing inside of the present utility model is provided with water coolant water channel, and make in rotary kiln operation process, bearing is in low-temperature condition all the time, substantially increases the life and reliability of bearing of conveyor idler;

(5) combined sealing structure of burner of the present utility model, stove tail possesses mechanical seal and packing seal, form double seal, can guarantee when rotary barrel occurs that circumference is beated, still can provide good sealed environment, and, the utility model also adopts Graphite Powder 99 lubricant, and under can avoiding the condition of high temperature, coking carbonization causes the situation of seal failure to occur, and further increases the stopping property of rotary furnace equipment;

(6) the utility model is also provided with device for measuring temperature of materials in stove, the temperature of each section of material in rotary kiln can be measured exactly, possess long service life, advantage that precision is high, and be combined the temperature that can realize automatically controlling material in stove with DCS system, reduce the labour intensity of workman.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is internal structure schematic diagram of the present utility model;

Fig. 3 is riding wheel apparatus structural representation;

Fig. 4 is bearing of conveyor idler holder structure schematic diagram;

Fig. 5 is supporting-roller shaft bearing vertical view;

Fig. 6 is special end face sealed structural representation;

Fig. 7 is special end face sealed structure left view;

Fig. 8 is temperature of charge determinator schematic diagram in rotary kiln stove;

Fig. 9 is thermopair and protective tube scheme of installation in stove;

Each coded representation in accompanying drawing: 1-stock pusher, 2-burner airway, 3-cylinder, 4-combined sealing structure, 5-rotary barrel, 6-chuck seals, 7-external heating jacket, 8-master wheel, 9-rolling ring, 10-exhanst gas outlet, 11-spiral shell ring, 12-feed box, 13-discharge port, 14-corrugated tube, 15-riding wheel apparatus, 16-gas approach, 17-catch wheel device, 18-transmission mechanism, 19-temperature measuring equipment, 20-feeding unit, 21-spiral charging guide plate, 22-fixes chuck, 23-operates chuck, 24-hopper, 25-spiral plate, the anti-dust inner core of 26-, 27-baffle plate, 28-supporting-roller shaft bearing, 29-water inlet pipe, 30-rising pipe, 31-support roller, 32-supporting-roller shaft, 33-bearing, 34-lock packing, 35-spring, 36-gland, 37-push bolt, 38-Graphite Powder 99 opening for feed, 39-sealing-ring, 40-stationary seat, 41-stationary seal ring, 42-rotary packing ring, 43-rotating seat, 44-protective tube, 45-thermopair, 46-wireless temperature transmitter, 47-signal cable, 48-flange, 49-pipe clamp, 50-temperature probe.

Embodiment

As shown in Figure 1, a kind of improving quality of coal by pyrolysis rotary kiln of anti-dust is primarily of rotary barrel 5, external heating jacket 7, burner airway 2, feeding unit 20 and drawing mechanism, transmission mechanism 18 and master wheel 8, riding wheel apparatus 15 and rolling ring 9, parts such as catch wheel device 17 grade form, external heating jacket 7 is provided with gas approach 16 and exhanst gas outlet 10, smoke entrance quantity and position are determined according to rotary kiln length, in addition, combined sealing structure 4 is provided with at burner and stove tail, external heating jacket 7 two ends are provided with chuck sealing 6, for accurately measuring temperature of charge distribution in stove, temperature measuring equipment 19 is provided with in rotary kiln cylindrical shell.

As shown in Figure 2, at rotary barrel 5 internal surface, welding spiral charging guide plate 21 in length range, spiral charging guide plate 21 is mainly used in accurately controlling the material reaction time, prevent airborne dust, the effects such as strengthening heat, anti-dust inner core 26 is being welded on the spiral charging guide plate 21 within the scope of burner certain length, on anti-dust inner core 26, a circle venting hole is opened at interval of certain length, venting hole quantity on each circle is not etc., the position number of aperture that gas production rate is large is many, concrete the number of openings of often enclosing is determined according to technological reaction situation, when anti-dust inner core 26 length needing to arrange is longer, anti-dust inner core 26 can be divided into multistage manufacture, each section of anti-dust inner core 26 only welds with spiral charging guide plate 21 one end, the other end retractable, keep at a certain distance away between adjacent two sections of anti-dust inner cores 26, to reserve enough expansion gaps, near one end of burner welding baffle plate 27 on anti-dust inner core 21, baffle plate 27 center drilling, opening diameter is more bigger than burner airway 2 external diameter, burner airway 2 is connected with the quiet end cap of burner by corrugated tube 14, and extend in anti-dust inner core 26 through the quiet end cap of burner, and apart from end baffle 27 certain distance, and the opening for feed of feeding unit 20 is positioned at baffle plate 27 outside, dust-proof inner core 26 plays the effect of isolation coal dust, be mainly used in preventing a large amount of dust in charging and reaction process from entering burner airway 2 with reactant gases, cause the increasing of follow-up dust removal installation load.

As shown in Figure 2, arrange stock pusher 1 in burner airway 2, stock pusher 1 is driven by motor, and presses certain frequency operation, is again shifted onto in rotary reaction furnace by the dust entered in burner airway 2, prevents burner airway 2 from blocking.

As shown in Figure 2, feeding unit 20 is the screw feeding device of independently translator driving, and screw feeding device is connected with the quiet end cap of burner by corrugated tube 14, and it is inner that blanking port is deep into rotary barrel 5 through the quiet end cap central of burner.

As shown in Figure 2, drawing mechanism is by the spiral shell ring 11 of interior welds many groups spiral plate 25, feed box 12 and discharge port 13 form, it is inner that spiral shell ring 11 stretches into rotary barrel 5 through the centre hole on stove tail end cover, and be welded and fixed with stove tail end cover, rotate with rotary barrel 5, spiral shell ring 11 the other end rises up in feed box 12, stove tail end cover is evenly welded with multiple hopper 24, and corresponding position has the width charging breach slightly wider than hopper on spiral shell ring 11, during rotary kiln running, the material of body of heater inner bottom part is taken up by the hopper 24 rotated, when running to certain altitude, material falls within spiral shell ring 11 due to action of gravity, then be transported in feed box 12 by the spiral plate 25 in spiral shell ring 11, discharged out of the furnace by discharge port 13 again.

As shown in Figure 2, position on rotary kiln cylindrical shell outside master wheel 8 and rolling ring 9 arranges fixing chuck 22, fixing chuck 22 does not rotate with rotary barrel 5, at master wheel 8, the running chuck 23 rotated with rotary barrel 5 is set with rolling ring 9 position, running chuck 23 is welded on rotary barrel 5 outside surface by the gusset be uniformly distributed along the circumference, fix between chuck 22 and running chuck 23 and chuck is set between fixing chuck 22 two ends and rotary barrel 5 and seal 6, fixing chuck 22, formation one is through along rotary barrel 5 total length together for running chuck 23 and chuck sealing 6, non-separately independently, full heating jacket structure, thus realize heating rotary barrel 5 total length part.Chuck sealing 14 can adopt the sealing means of spring application graphite grazing block or fish scale diaphragm seal to add the sealing means of steel cable.

As Fig. 1, shown in 3 ~ 5, many group riding wheel apparatus 15 are set in rotary kiln bottom, riding wheel apparatus 15 mainly comprises support roller 31, supporting-roller shaft 32, bearing 33, parts such as bearing support 28 grade, supporting-roller shaft bearing 28 adopts and thickeies design, and water coolant water channel is set in bearing support 28 inside, at supporting-roller shaft bearing 28 back side, water inlet pipe 29 and rising pipe 30 are set, water inlet pipe and water outlet pipe and water coolant water channel are threaded connection, water coolant flows into after water channel through water inlet pipe and carries out sufficient heat exchange with bearing support 28, and then flow out through rising pipe, riding wheel apparatus 15 can be made to be in lesser temps state all the time.

As Fig. 1, 2, 6, shown in 7, burner airway 2 and between feeding unit 20 and rotary kiln burner end cap, and between feed box 12 and spiral shell ring 11, combined sealing structure 4 is set, described combined sealing structure 4 mainly comprises rotary packing ring 42 and stationary seal ring 41, it is characterized in that rotary packing ring 42 is fixed on rotary kiln burner end cap or spiral shell ring 11 by rotating seat 43, stationary seal ring 41 is fixed on stationary seat 40, stationary seat 40 is by corrugated tube 14 and burner airway 2, feeding unit 20 or feed box 12 are connected, along stationary seat 40 circumference, multiple cylinder 3 is set, under the effect of cylinder 3 pressure, rotary packing ring 42 and stationary seal ring 41 are fitted all the time, form mechanical seal, realize first sealing.Stationary seal ring 41 welds a sealing-ring 39, sealing-ring 39 is divided into graphite-filled chamber and packing groove two portions, graphite-filled chamber is positioned at the circumferential exterior of stationary seal ring 41, packing groove is positioned at the circumferential exterior of rotary packing ring 42, during operation, Graphite Powder 99 is full of in graphite-filled chamber, and on the trim of stationary seal ring 41 upper part, have several grooves, and with graphite-filled chamber UNICOM, therefore when rotary kiln runs, Graphite Powder 99 in graphite-filled chamber constantly enters dynamic by the groove of stationary seal ring 41 trim, stationary seal ring trim, dynamic, static seal plays lubrication between face.At several Graphite Powder 99 opening for feeds 38 of sealing-ring upper weld, and be connected with Graphite Powder 99 holder, ensure that the Graphite Powder 99 in graphite-filled chamber uninterruptedly adds, in the packing groove of sealing-ring 39, lock packing 34 is installed, and by gland 36 press seal filler 34, push bolt 37 and spring 35 are set on the packing groove of sealing-ring 39 simultaneously, at push bolt 37 and spring 35 under effect, lock packing 34 fits tightly with the circumferential outer surface of the rotary packing ring 43 rotated all the time, form packing seal, namely second sealing is realized, prevent Graphite Powder 99 and gas leakage, spring 35 also can regulate dynamic in addition, static seal face is in operation process, and the diameter run-out that cause excessive due to malalignment.

Device for measuring temperature of materials 19 in described stove; it is characterized in that the thermopair 45 installing a band protective tube 44 on rotary kiln cylindrical shell 5 inwall; protective tube 44 is fixed by being welded on multiple pipe clamp 49 on rotary barrel 5 inwall; pipe clamp 49 diameter is slightly larger than protective tube 44; thermopair 45 and protective tube 44 retractable in pipe clamp 49; so the thermal expansion avoiding rotary barrel 5 is on the impact of thermopair 45 and protective tube 44; temperature probe 50 on thermopair 45 in protective tube 44 and protective tube 44 inwall close contact, to avoid temperature of charge in temperature hysteresis and Measurement accuracy stove.Thermopair 45 length suitably can adjust according to processing requirement, and when requiring point for measuring temperature more, thermopair 45 can select branched thermopair.Thermopair 45 and the position of protective tube 44 without heating jacket on the rotation outer wall of rotary kiln are stretched out outside rotary kiln; after flange 48 seals; wireless temperature transmitter 46 is connected by signal cable 47; wireless temperature transmitter 46 is fixed on the rotation outer wall of rotary kiln by support, rotates with rotary kiln.

Claims (9)

1. the improving quality of coal by pyrolysis rotary kiln of an anti-dust, comprise rotary barrel (5), external heating jacket (7), burner airway (2), feeding unit (20), drawing mechanism, transmission mechanism (18), master wheel (8), riding wheel apparatus (15), rolling ring (9), catch wheel device (17), described drawing mechanism comprises spiral shell ring (11), feed box (12), discharge port (13); Described external heating jacket (7) is provided with gas approach (16) and exhanst gas outlet (10), burner and stove tail are provided with combined sealing structure (4), described external heating jacket (7) two ends are provided with chuck sealing (6), are provided with temperature measuring equipment (19) in described rotary barrel (5).

2. the improving quality of coal by pyrolysis rotary kiln of a kind of anti-dust as claimed in claim 1, it is characterized in that, welding spiral charging guide plate (21) in described rotary barrel (5) internal surface length range, anti-dust inner core (26) is being welded apart from the described spiral charging guide plate (21) within the scope of burner certain length is upper, on described anti-dust inner core (26), open a circle venting hole at interval of certain length, not etc., the position number of aperture that gas production rate is large is not many for the venting hole quantity on each circle;

When described anti-dust inner core (26) length is longer, described anti-dust inner core (26) can be divided into multistage manufacture, each section of anti-dust inner core only welds with described spiral charging guide plate (21) one end, the other end retractable, keep at a certain distance away between adjacent two sections of described anti-dust inner cores (26), upper welding baffle plate of the one end near burner (27) of described anti-dust inner core (21), described baffle plate (27) center drilling, opening diameter is more bigger than the external diameter of burner airway (2), described burner airway (2) is connected with the quiet end cap of burner by corrugated tube (14), and extend in described anti-dust inner core (26) through the quiet end cap of burner, and apart from baffle plate (27) certain distance described in end, and opening for feed is positioned at described baffle plate (27) outside.

3. the improving quality of coal by pyrolysis rotary kiln of a kind of anti-dust as claimed in claim 1, it is characterized in that, in described burner airway (2), stock pusher (1) is set, described stock pusher (1) is driven by motor, and press certain frequency operation, the dust entered in described burner airway (2) is shifted onto in described rotary kiln again.

4. the improving quality of coal by pyrolysis rotary kiln of a kind of anti-dust as claimed in claim 1, it is characterized in that, described feeding unit (20) is the screw feeding device of independently translator driving, described screw feeding device is connected with the quiet end cap of burner by corrugated tube (14), and it is inner that blanking port is deep into described rotary barrel (5) through burner quiet end cap bottom.

5. the improving quality of coal by pyrolysis rotary kiln of a kind of anti-dust as claimed in claim 1, it is characterized in that, described drawing mechanism comprises the spiral shell ring (11) of many groups flight (25) of interior welds, feed box (12) and discharge port (13), it is inner that described spiral shell ring (11) stretches into described rotary barrel (5) through the centre hole on stove tail end cover, and be welded and fixed with stove tail end cover, rotate with described rotary barrel (5), described spiral shell ring (11) the other end stretches in described feed box (12), stove tail end cover is evenly welded with multiple hopper (24), the width charging breach slightly wider than described hopper (24) is had in the corresponding position of described spiral shell ring (11), when rotary kiln operates, the material of body of heater inner bottom part is taken up by the described hopper (24) rotated, when running to certain altitude, material is due in action of gravity falls within described spiral shell ring (11), then be transported in described feed box (12) by the spiral plate (25) in described spiral shell ring (11), discharged out of the furnace by described discharge port (13) again.

6. the improving quality of coal by pyrolysis rotary kiln of a kind of anti-dust as claimed in claim 1, it is characterized in that, described cylindrical shell external heating jacket (7) is made up of the different fixing chuck (22) of structure and running chuck (23), described running chuck (23) is welded on the position of described rotary barrel (5) being installed master wheel (8) and rolling ring (9), described fixing chuck (22) is arranged on the upper position of installing outside described master wheel (8) and described rolling ring (9) of described rotary barrel (5), between described fixing chuck (22) and described running chuck (23) and between described fixing chuck (22) two ends and described rotary barrel (5), described chuck is set seals (6), described fixing chuck (22), described running chuck (23) and described chuck sealing (6) form together one through along described rotary barrel (5) total length, non-separately independently, full heating jacket structure.

7. the improving quality of coal by pyrolysis rotary kiln of a kind of anti-dust as claimed in claim 1, it is characterized in that, arrange two groups or organize riding wheel apparatus (15) according to the length of described rotary kiln more, described riding wheel apparatus (15) comprises support roller (31), supporting-roller shaft (32), bearing (33), bearing support (28), described supporting-roller shaft bearing (28) thickeies design, and water coolant water channel is set in described bearing support (28) inside, at described supporting-roller shaft bearing (28) back side, water inlet pipe (29) and rising pipe (30) are set, described water inlet pipe (29), described rising pipe (30) and water coolant water channel are threaded connection, water coolant flows into after water channel through water inlet pipe and carries out sufficient heat exchange with bearing support (28), and then flow out through rising pipe, riding wheel apparatus (15) can be made to be in lesser temps state all the time.

8. the improving quality of coal by pyrolysis rotary kiln of a kind of anti-dust as claimed in claim 1, it is characterized in that, described burner airway (2) and between described feeding unit (20) and rotary kiln burner end cap, and between described feed box (12) and described spiral shell ring (11), described combined sealing structure (4) is set, described combined sealing structure (4) comprises rotary packing ring (42) and stationary seal ring (41), described rotary packing ring (42) is fixed on rotary kiln burner end cap or described spiral shell ring (11) by rotating seat (43), described stationary seal ring (41) is fixed on stationary seat (40), described stationary seat (40) is by corrugated tube (14) and described burner airway (2), described feeding unit (20) or described feed box (12) are connected, along described stationary seat (40) circumference, multiple cylinder (3) is set, under described cylinder (3) pressure effect, described rotary packing ring (42) and described stationary seal ring (41) are fitted all the time, form mechanical seal, realize first sealing,

The upper welding sealing-ring (39) of described stationary seal ring (41), described sealing-ring (39) is divided into graphite-filled chamber and packing groove two portions, described graphite-filled chamber is positioned at the circumferential exterior of described stationary seal ring (41), described packing groove is positioned at the circumferential exterior of described rotary packing ring (42), Graphite Powder 99 is full of in graphite-filled chamber, the trim of described stationary seal ring (41) upper part has several grooves, and with described graphite-filled chamber UNICOM, Graphite Powder 99 in described graphite-filled chamber constantly enters described rotary packing ring trim successively by the groove of described stationary seal ring (41) trim, described stationary seal ring trim, at described rotary packing ring trim, lubrication is played between described stationary seal ring trim, several Graphite Powder 99 opening for feeds of described sealing-ring (39) upper weld, and be connected with Graphite Powder 99 holder, ensure that the Graphite Powder 99 in described graphite-filled chamber uninterruptedly adds, in the packing groove of described sealing-ring (39), lock packing (34) is installed, and by gland (36) press seal filler (34), push bolt (37) and spring (35) are set on the packing groove of sealing-ring (39) simultaneously, at push bolt (37) and spring (35) under effect, lock packing (34) fits tightly with the circumferential outer surface of the rotary packing ring (42) rotated all the time, form packing seal, realize second sealing.

9. the improving quality of coal by pyrolysis rotary kiln of a kind of anti-dust as claimed in claim 1, it is characterized in that, described temperature measuring equipment (19) is set to the thermopair (45) installing band protective tube (44) on described rotary barrel (5) inwall, described protective tube (44) is fixed by the multiple pipe clamps (49) be welded on described rotary barrel (5) inwall, described pipe clamp (49) diameter is slightly larger than described protective tube (44), described thermopair (45) and described protective tube (44) retractable in described pipe clamp (49), so the thermal expansion avoiding described rotary barrel (5) is on the impact of described thermopair (45) and described protective tube (44), temperature probe (50) on described thermopair (45) in described protective tube (45) and described protective tube (44) inwall close contact,

Described thermopair (45) length suitably can adjust according to processing requirement, and when requiring point for measuring temperature more, described thermopair (45) can select branched thermopair; Described thermopair (45) and the position of described protective tube (44) without heating jacket on the rotation outer wall of rotary kiln are stretched out outside rotary kiln; after flange (48) sealing; wireless temperature transmitter (46) is connected by signal cable (47); wireless temperature transmitter (46) is fixed on the rotation outer wall of rotary kiln by support, rotates with rotary kiln.