CN204779480U - Dry carbomorphism device of brown coal fluidization - Google Patents

Abstract

The utility model provides a dry carbomorphism device of brown coal fluidization, belongs to brown coal upgrading technical field, solves present brown coal upgrading technology, does not still have the technical problem of ripe production facility. The utility model discloses a: drying furnace and retort, retort are multislot retorts that feeds through with the drying furnace, establish the slot type burner hearth in the multislot retort, and the multislot air distribution plate is divided into to the slot type burner hearth, has carbomorphism narrow slit hood on the multislot air distribution plate, and multislot air distribution plate below is the isobaric bellows of multislot, and the isobaric bellows of multislot feed through with multislot flue gas air heat exchanger, multislot steam water heat exchanger, high temperature coal gas distributor, and the multislot retort meets with the gravity cooler. The utility model is used for brown coal upgrading, it is reasonable to have a device layout, compact structure, the energy consumption is little, pollute less, output is high, low in manufacturing cost's advantage.

Description

A kind of brown coal fluidized drying carbonizing apparatus

Technical field

The utility model belongs to brown coal upgrading processing technique field, the equipment of particularly brown coal non-evaporating dehydrolysis upgrading, is a kind of device adopting brown coal to carry out fluidized drying and charing specifically.

Background technology

Brown coal are coals that degree of coalification is lower, and its degree of coalification is between peat and bituminous coal.Brown coal water content is high, in atmosphere easy-weathering; Containing a certain amount of original humic acid, carbon content is low, and oxygen level is high, and hydrogen richness changes greatly: volatile matter is generally 45% ~ 55%.Because brown coal moisture is high, calorific value is low, easy-weathering and spontaneous combustion, the transportation cost of unit energy is high, is unfavorable for long distance delivery and storage.The thermo-efficiency that brown coal directly burn is lower, and the quantity discharged of greenhouse gases is also very large, is difficult to large-scale develop and utilize.In addition, brown coal liquefaction, destructive distillation and gasification all need moisture in coal to be down to less than 10%, and brown coal utilize as feedstock conversion and are also restricted.If brown coal, without upgrading processing, will be difficult to the specification of quality meeting user, the key that brown coal Efficient Development utilizes is processed in brown coal upgrading.Brown coal upgrading mentioned here, refer to that brown coal are in dehydration, shaping and thermal decomposition process, the Nomenclature Composition and Structure of Complexes of coal changes, and changes into the upgraded coal with approximate bituminous coal character.After brown coal dehydration upgrading processing. moisture significantly reduces, and thermal value increases substantially, and both can prevent spontaneous combustion of coal, be convenient to transport and storage, is conducive to again generating, gas making, chemical industry use.

In recent years. along with domestic coal price sharp rises, the lignite resource of relative low price causes the attention of derived energy chemical industry.A collection of newly-built Coal Chemical Engineering Project uses brown coal instead one after another as raw material, have developed multiple brown coal Upgrading Processes.Domestic and international brown coal Upgrading Processes is summed up and substantially can be divided into non-evaporating dehydrolysis upgrading technology, shaping upgrading technology, pyrolysis upgrading technology three major types.

1, non-evaporating dehydrolysis upgrading technology:

Non-evaporating dehydrolysis upgrading technology is directly contacted with high temperature and high pressure steam (or high-temperature hot oil) by brown coal, and moisture is deviate from, thus make brown coal contraction become finer and close, and hydrophobicity strengthens.Non-evaporating dehydrolysis method for upgrading thermo-efficiency and security thereof are all higher.

2, shaping upgrading technology:

Shaping upgrading technology is that brown coal are processed into moulded coal, then for industrial and civilian.Brown coal are in moulding process, and through high pressure or shearing physical action, make its gel structure and pore system receive irreversible destruction, thus inherently change the coal rank of coal sample, degree of coalification also improves thereupon.

3, pyrolysis upgrading technology:

Brown coal pyrolysis started from for 20 beginnings of the century, its objective is and produced paraffin oil and solid smokeless fuel.The seventies in last century oil crisis, people pay attention to the exploitation of cheap lignite resource, be studied, develop some novel procesies to brown coal pyrolytic process.Typical brown coal pyrolytic process comprises: L-R technique of Germany, the fluid bed fast pyrolysis technique etc. of Australia.

At present, domestic brown coal Upgrading Processes is also in the starting stage, in the upgrading of brown coal non-evaporating dehydrolysis, only has minority R&D institution to carry out fundamental research, there is no ripe production unit,

Summary of the invention

The utility model is intended to the shortcoming overcoming prior art, provides a kind of brown coal fluidized drying carbonizing apparatus, solves current brown coal quality-improving processing technique, there is no energy consumption little, pollute less, the technical problem of the production unit of high, the low cost of manufacture of output.

The utility model is achieved through the following technical solutions:

A kind of brown coal fluidized drying carbonizing apparatus, comprise: drying oven and charring furnace, it is characterized in that: described charring furnace is a kind of multiple-grooved charring furnace, described drying oven bottom is isobaric bellows, above isobaric bellows, drying oven air distribution plate is set, drying oven air distribution plate is provided with dry narrow slit blast cap, the bottom of isobaric bellows is connected the hot device of Qi Shui Change by regulation gate valve with the hot device of Qi Shui Change and is connected with coal gas of high temperature divider, coal gas of high temperature divider and ash melt poly-burner and are connected, and drying oven connects with screw-type coal distributor, described multiple-grooved charring furnace is communicated with drying oven, I ~ No. IV slot type burner hearth is provided with in multiple-grooved charring furnace, separate with multiple-grooved burner hearth baffle between adjacent burner hearth, I ~ No. IV slot type lower furnace portion arranges multiple-grooved air distribution plate, multiple-grooved air distribution plate is provided with charing narrow slit blast cap, corresponding with I ~ No. IV slot type burner hearth below multiple-grooved air distribution plate the isobaric bellows of I ~ No. IV multiple-grooved are set, I ~ No. IV isobaric bellows of multiple-grooved is connected with I ~ No. IV multiple-grooved flue gas air heat exchanger by I ~ No. IV charring furnace regulated valve correspondence, I ~ No. IV multiple-grooved flue gas air heat exchanger correspondence is communicated with I ~ No. IV multiple-grooved vapor-water heat exchanger, I ~ No. IV multiple-grooved vapor-water heat exchanger is communicated with coal gas of high temperature divider, multiple-grooved charring furnace connects with gravity cooler.

Further, the drying oven flue gas that described drying oven produces, be communicated with No. II jet pump through flue gas condenser, No. II jet pump is communicated with vapor-water heat exchanger, and meanwhile, drying oven flue gas is communicated with chimney through wet dust collector, induced draft fan.

Further, the charring furnace high-temperature flue gas that described multiple-grooved charring furnace produces is communicated with No. I jet pump through tar-processing system, and No. I jet pump melts poly-burner with ash and No. II high pressure positive blower is connected.

Further, described I ~ No. IV multiple-grooved vapor-water heat exchanger and gravity cooler and vapor-water heat exchanger, communicate respectively by the cold water of water pump with soft brush treatment system, the hot water formed after heat exchange communicates with heat pipe vapor-water heat exchanger and No. I high pressure positive blower.

Further, described multiple-grooved flue gas air heat exchanger is connected with heat pipe vapor-water heat exchanger and No. I high pressure positive blower, the high-pressure hot air that multiple-grooved flue gas air heat exchanger is formed, be connected with No. II jet pump through high temperature air inlet air plenum, No. II jet pump is connected with vapor-water heat exchanger.

Further, described ash melts the slag bath being provided with liquid slag below poly-burner.

Further, the band ash water of condensation bottom described condenser connects with settling tank.

The utility model compared with prior art, has the following advantages and beneficial effect:

1, energy consumption is little, pollutant emission is few:

The flue gas of discharging in drying, carbonization process due to drying oven, multiple-grooved charring furnace carries out recycle all, and not only consumed energy is few, and drastically reduce the area the discharge of pollutent; Because the flue gas recirculation after coal burner burning utilizes, not only the input amount of coal dust significantly reduces, and decreasing pollution thing total emission volumn is more than 60%; Because coal grain all carries out in drying, carbonization process under fluidization kinestate, can contact fully between high-temperature flue gas with fluidised coal grain, accelerate dry, charing process, dry, carbonization time shortens, decrease energy consumption, the discharge of unit output reduces greatly; Because drying oven and charring furnace carry out under complete air-tight state, in pressure-fired combustion with meagre oxygen in burner hearth, largely decrease scaling loss.

2, output is high, production cost is low:

Due to the drying of coal grain, carbonize and carry out under fluidized state, high-temperature flue gas fully contacts with fluidization coal grain, accelerates dry, charing process, improves unit output; Directly enter charring furnace afterwards because coal grain drying is qualified, eliminating dried coal grain in prior art need deposit, transport all swivel links entering charring furnace again through cooling, dress, reduces production cost; Because drying oven flue gas and retort gas all carry out recycle, in whole technological process, the input amount of coal dust significantly reduces, and reduces production cost; Due to automatic regulation in production process, reduce labor management, reduce production cost; Because total system is without large-scale rotating machinery, of the same type can stdn buying, in the device fabrication processes such as drying, charring furnace fault and spoilage little, decrease maintenance load, reduce production cost; Because the time that is dry, charing shortens and scaling loss minimizing greatly, expand output ratio, reduce production cost.

The utility model is used for brown coal upgrading processing, has device layout reasonable, compact construction, and energy consumption is little, pollute less, output is high, the advantage of low cost of manufacture.

Accompanying drawing explanation

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

Embodiment

Embody the exemplary embodiments of the utility model feature & benefits, will describe in detail in the following description by reference to the accompanying drawings.Be understood that the utility model can have various changes in different embodiments, it neither departs from protection domain of the present utility model, and explanation wherein and to be shown in be use when explain in essence, and be not used to limit the utility model.

As shown in Figure 1, a kind of brown coal fluidized drying carbonizing apparatus, comprise: drying oven and charring furnace, described charring furnace is a kind of multiple-grooved charring furnace 2, described drying oven 1 bottom is isobaric bellows 1.2, above isobaric bellows 1.2, drying oven air distribution plate 1.1 is set, drying oven air distribution plate 1.1 is provided with dry narrow slit blast cap 1.1.1, the bottom of isobaric bellows 1.2 is connected the hot device 11 of Qi Shui Change by regulation gate valve 10 with the hot device of Qi Shui Change 11 and is connected with coal gas of high temperature divider 12, coal gas of high temperature divider 12 and ash melt poly-burner 16 and are connected, and drying oven 1 connects with screw-type coal distributor 19; Described multiple-grooved charring furnace 2 is communicated with drying oven 1, is provided with I ~ No. IV slot type burner hearth d in multiple-grooved charring furnace 2 ₁~ d ₄, separate with multiple-grooved burner hearth baffle 2.1 between adjacent burner hearth, I ~ No. IV slot type lower furnace portion arranges multiple-grooved air distribution plate 2.2, and multiple-grooved air distribution plate is provided with charing narrow slit blast cap 2.2.1, with I ~ No. IV slot type burner hearth d below multiple-grooved air distribution plate 2.2 ₁~ d ₄correspondence arranges the isobaric bellows c of I ~ No. IV multiple-grooved ₁~ c ₄, I ~ No. IV isobaric bellows c of multiple-grooved ₁~ c ₄by I ~ No. IV charring furnace regulated valve e ₁~ e ₄correspondence and I ~ No. IV multiple-grooved flue gas air heat exchanger b ₁~ b ₄connect, I ~ No. IV multiple-grooved flue gas air heat exchanger b ₁~ b ₄correspondence and I ~ No. IV multiple-grooved vapor-water heat exchanger a ₁~ a ₄be communicated with, I ~ No. IV multiple-grooved vapor-water heat exchanger a ₁~ a ₄be communicated with coal gas of high temperature divider 12, multiple-grooved charring furnace 2 connects with gravity cooler 4.

Further, the drying oven flue gas M that described drying oven 1 produces, be communicated with No. II jet pump 18 through flue gas condenser 24, No. II jet pump 18 is communicated with vapor-water heat exchanger 11, and meanwhile, drying oven flue gas M is communicated with chimney 22 through wet dust collector 20, induced draft fan 21.

Further, the charring furnace high-temperature flue gas E that described multiple-grooved charring furnace 2 produces is communicated with No. I jet pump 14 through tar-processing system 3, and No. I jet pump 14 melts poly-burner 16 with ash and No. II high pressure positive blower 13 is connected.

Further, described I ~ No. IV multiple-grooved vapor-water heat exchanger a ₁~ a ₄communicate with the cold water A of soft brush treatment system 7 respectively by water pump 8 with gravity cooler 4 and vapor-water heat exchanger 11, the hot water B formed after heat exchange communicates with heat pipe vapor-water heat exchanger 6 and No. I high pressure positive blower 5.

Further, described multiple-grooved flue gas air heat exchanger b ₁-b ₄be connected with heat pipe vapor-water heat exchanger 6 and No. I high pressure positive blower 5, multiple-grooved flue gas air heat exchanger b ₁-b ₄the high-pressure hot air D formed, be connected with No. II jet pump (18) through high temperature air inlet air plenum 17, No. II jet pump 18 is connected with vapor-water heat exchanger 11.

Further, described ash melts the slag bath 15 being provided with liquid slag below poly-burner 16.

Further, the band ash water of condensation bottom described condenser 24 connects with settling tank 23.

Adopt the method for a kind of brown coal fluidized drying charing of the present utility model, its processing step is:

(1) to drying oven 1 and multiple-grooved charring furnace 2 baker;

(2) coal grain O enters drying oven 1 drying;

(3) dried coal grain O enters multiple-grooved charring furnace 2 and carbonizes;

(4) finished product carbonized material Q enters gravity cooler 4 from the discharging channel of multiple-grooved charring furnace 2 and cools.

Further, described step () is to drying oven 1 and multiple-grooved charring furnace 2 baker:

1. open No. I high pressure blower 5, open water pump 8, open drying oven regulation gate valve 10 and I ~ No. IV charring furnace regulated valve e ₁~ e ₄, guarantee that sky G&W is unimpeded;

2. coal dust S enters ash and melts the ignition of poly-burner 16; Part high-temperature flue gas H is entered the isobaric bellows 1.2 of drying oven 1 through vapor-water heat exchanger 11, drying oven regulated valve 10 by high-temperature flue gas distribution chamber 12, by the ventilating pit of the dry narrow slit blast cap 1.1.1 on drying oven air distribution plate 1.1, then the burner hearth entering drying oven 1 carries out baker; Another part high-temperature flue gas H is through I ~ No. IV multiple-grooved vapor-water heat exchanger a ₁~ a ₄, I ~ No. IV multiple-grooved flue gas air heat exchanger b ₁~ b ₄, I ~ No. IV charring furnace regulated valve e ₁~ e ₄enter the isobaric bellows c of I ~ No. IV charring furnace multiple-grooved ₁~ c ₄, by charring furnace multiple-grooved air distribution plate 2.2 carbonizing the ventilating pit of narrow slit blast cap 2.2.1, then enter I ~ No. IV slot type burner hearth d ₁~ d ₄, carry out baker by " roast technic code ".

Further, affiliated step (two) coal grain O enters drying oven 1 drying:

1. screw-type coal distributor 19 is started, when coal grain O fills out setting thickness from the coal inlet air distribution plate 1.1 entered below the burner hearth of drying oven 1, adjustment drying oven regulation gate valve 10 makes high-temperature flue gas H enter isobaric bellows 1.2 through vapor-water heat exchanger 11, drying oven regulation gate valve 10, entered the burner hearth of drying oven by the ventilating pit of the dry narrow slit blast cap 1.1.1 on drying oven air distribution plate 1.1 equably, allow coal grain O carry out fluidization campaign on air distribution plate; The flow of cold water A in adjustment vapor-water heat exchanger 11, make fire box temperature be warming up to 150 DEG C ~ 180 DEG C, high-temperature flue gas H fully contacts with fluidised coal grain, completes drying;

2. timing sampling from the product sampling pipe bottom drying oven, the degree of drying of inspection coal grain, at any time the temperature of high-temperature flue gas H and flow are adjusted, until whole drought indexs of coal grain O are qualified, along with constantly adding of coal grain O, the dry qualified No. I slot type burner hearth d of coal grain O from the lower passage of drying oven 1 to multiple-grooved charring furnace 2 in fluidization process ₁mobile.

Further, affiliated step (three) dried coal grain O enters multiple-grooved charring furnace 2 and carbonizes:

1. dry qualified after coal grain O at No. I slot type burner hearth d ₁air distribution plate on fill out setting thickness time, regulate and control No. I charring furnace regulated valve e ₁make coal grain O at No. I slot type burner hearth d ₁air distribution plate on fluidization, add along with coal grain O keeps, No. I slot type burner hearth d ₁coal grain O in fluidization process to No. II slot type burner hearth d ₂mobile, coal grain O is respectively at II ~ No. IV slot type burner hearth d by that analogy ₂~ d ₄inside carry out fluidized carbonization;

2. I ~ No. IV multiple-grooved vapor-water heat exchanger a is adjusted at any time ₁~ a ₄flow, adjust I ~ No. IV charring furnace regulated valve e ₁~ e ₄aperture, the flow of regulation and control high-temperature flue gas H, makes I ~ No. IV slot type burner hearth d ₁~ d ₄carbonization temperature reach 250 DEG C, 375 DEG C, 500 DEG C and 550 DEG C ~ 650 DEG C respectively, high-temperature flue gas H fully contacts with at fluidised moisture-free coal grain, completes charing;

3. timing sampling from the product sampling pipe bottom multiple-grooved charring furnace 2, the degree of carbonization of inspection moisture-free coal grain, adjusts high-temperature flue gas H at any time and enters I ~ No. IV slot type burner hearth d ₁~ d ₄temperature, pressure and flow, until after the whole qualified of finished product carbonized material, the inlet amount of coal grain O and the load of finished product carbonized material Q keep balance, in the carbonization time of setting, coal grain O constantly enters, and moisture-free coal grain constantly moves to slot type burner hearth, and finished product carbonized material Q constantly discharges.

Further, affiliated step (four) finished product carbonized material Q enters gravity cooler 4 from the discharging channel of multiple-grooved charring furnace 2 and cools, and cooled finished product carbonized material Q can be delivered to finished goods warehouse with conveyor.

Recycle in brown coal fluidized drying charring process:

1. the coal drying oven flue gas M of described drying oven 1 generation, after flue gas condenser 24 cools, after the gas mixture J that the warm air D of part of smoke M and high temperature air inlet air plenum 17 synthesizes warm air+dry burner hearth flue gas M in No. II jet pump 18 enters vapor-water heat exchanger 11, enter the recycle of isobaric bellows 1.2 by drying oven regulation gate valve 10; Another part drying oven flue gas M enters air through induced draft fan 21 by chimney 22 by the tail gas R after wet dust collector 20 water bath dust-removing, and environmental protection index complies with the national standard requirements.

2. drying oven flue gas M is after flue gas condenser 24 cools, and bottom condenser 24, generating strap ash water of condensation N enters settling tank 23, and the clear water after precipitation will be fully utilized, and because throw out includes unknown rational number, will infiltrate pulverized coal as fuel and use after being dug out dehydration.

3. the charring furnace high-temperature flue gas E that produces of multiple-grooved charring furnace 2 after tar-processing system 3 processes and the high pressure normal temperature air C that sends of No. II high pressure positive blower 13 enter ash at the gas mixture G that No. I jet pump 14 is mixed to form normal temperature air C+ charring furnace coal gas of high temperature E and melt poly-burner 16 and participate in burning, recycle, gradually reduces the input amount of coal dust S.

4. be defeated by gravity cooler 4 couples of finished product carbonized material Q respectively by the cold water A after soft brush treatment system 7 sofening treatment to cool, and be defeated by I ~ No. IV multiple-grooved vapor-water heat exchanger a ₁~ a ₄carry out steam-water heat exchanging to the high-temperature flue gas H (about 1300 DEG C ~ 1450 DEG C) in high-temperature flue gas distribution chamber 12, the high-temperature flue gas H after cooled can meet I ~ No. IV slot type burner hearth d in multiple-grooved charring furnace 2 ₁~ d ₄temperature requirement in carbonization process, be defeated by vapor-water heat exchanger 11 and high-temperature flue gas distribution chamber 12 simultaneously, high-temperature flue gas H carries out steam-water heat exchanging, high-temperature flue gas H after cooled can meet the temperature requirement of dry burner hearth in coal drying process, and softening cold water A is through gravity cooler 4, I ~ No. IV multiple-grooved vapor-water heat exchanger a ₁-a ₄form the high pressure normal temperature air C sent by heat pipe vapor-water heat exchanger 6 and No. I high pressure positive blower 5 after hot water B gathers after carrying out heat exchange with vapor-water heat exchanger 11 and high-temperature flue gas H and finished product carbonized material Q and carry out heat exchange, cooled softening cold water A will proceed recycle.

5. No. I high pressure positive blower 5 starts rear generation high pressure normal temperature air C and is first cooled by the hot water B in heat pipe cold water-to-water heat exchanger 6, then enters I ~ No. IV multiple-grooved flue gas air heat exchanger b ₁-b ₄carry out heat exchange with high-temperature flue gas H, the temperature of high-temperature flue gas H is cooled to I ~ No. IV slot type burner hearth d that can meet in multiple-grooved charring furnace 2 on the one hand ₁~ d ₄temperature requirement in carbonization process, high-pressure hot air D is formed after being heated up by heat exchange high pressure normal temperature air C on the other hand, enter after ash melts poly-burner 16 and coal dust S mixing ignition through high temperature air inlet air plenum 17, form high-temperature flue gas H and participate in whole drying, charring process process high-pressure hot air D will play combustion-supporting and effect that is stable burning in whole combustion processes.

6. coal dust S and high-pressure hot air D melts in poly-burner 16 at ash and forms high-temperature flue gas H after mixing ignition, and the liquid slag T simultaneously produced enters slag bath 15, through cooling broken postprecipitation, can do the raw material use of material of construction after digging out through dehydration.

The utility model specifically can be implemented in a variety of forms and not depart from spirit or the essence of invention, so be to be understood that, above-described embodiment is not limited to aforesaid details, and should explain widely in claim limited range, therefore fall into change in claim or its equivalent scope and remodeling and all should be claim and contained.

Claims (7)

1. a brown coal fluidized drying carbonizing apparatus, comprise: drying oven and charring furnace, it is characterized in that: described charring furnace is a kind of multiple-grooved charring furnace (2), described drying oven (1) bottom is isobaric bellows (1.2), isobaric bellows (1.2) top arranges drying oven air distribution plate (1.1), drying oven air distribution plate (1.1) is provided with dry narrow slit blast cap (1.1.1), the bottom of isobaric bellows (1.2) is connected with the hot device of Qi Shui Change (11) by regulation gate valve 10, the hot device of Qi Shui Change (11) is connected with coal gas of high temperature divider (12), coal gas of high temperature divider (12) and ash melt poly-burner (16) and are connected, drying oven (1) connects with screw-type coal distributor (19), described multiple-grooved charring furnace (2) is communicated with drying oven (1), is provided with I ~ No. IV slot type burner hearth (d in multiple-grooved charring furnace (2) ₁~ d ₄), separate by multiple-grooved burner hearth baffle (2.1) between adjacent burner hearth, I ~ No. IV slot type lower furnace portion arranges multiple-grooved air distribution plate (2.2), multiple-grooved air distribution plate is provided with charing narrow slit blast cap (2.2.1), and multiple-grooved air distribution plate (2.2) below is corresponding with I ~ No. IV slot type burner hearth arranges I ~ No. IV multiple-grooved equipressure bellows (c ₁~ c ₄), I ~ No. IV isobaric bellows (c of multiple-grooved ₁~ c ₄) by I ~ No. IV charring furnace regulated valve (e ₁~ e ₄) corresponding and I ~ No. IV multiple-grooved flue gas air heat exchanger (b ₁~ b ₄) connect, I ~ No. IV multiple-grooved flue gas air heat exchanger (b ₁~ b ₄) corresponding and I ~ No. IV multiple-grooved vapor-water heat exchanger (a ₁~ a ₄) be communicated with, I ~ No. IV multiple-grooved vapor-water heat exchanger (a ₁~ a ₄) be communicated with coal gas of high temperature divider (12), multiple-grooved charring furnace (2) connects with gravity cooler (4).

2. according to brown coal fluidized drying carbonizing apparatus described in claim 1, it is characterized in that: the drying oven flue gas (M) that described drying oven (1) produces, be communicated with No. II jet pump (18) through flue gas condenser (24), No. II jet pump (18) is communicated with vapor-water heat exchanger (11), meanwhile, drying oven flue gas (M) is communicated with chimney (22) through wet dust collector (20), induced draft fan (21).

3. according to brown coal fluidized drying carbonizing apparatus described in claim 1, it is characterized in that: the charring furnace high-temperature flue gas (E) that described multiple-grooved charring furnace (2) produces is communicated with No. I jet pump (14) through tar-processing system (3), No. I jet pump (14) melts poly-burner (16) with ash and No. II high pressure positive blower (13) is connected.

4. according to brown coal fluidized drying carbonizing apparatus described in claim 1, it is characterized in that: described I ~ No. IV multiple-grooved vapor-water heat exchanger (a ₁~ a ₄) and gravity cooler (4) and vapor-water heat exchanger (11), communicate with the cold water (A) of soft brush treatment system (7) respectively by water pump (8), the hot water (B) formed after heat exchange communicates with heat pipe vapor-water heat exchanger (6) and No. I high pressure positive blower (5).

5. according to brown coal fluidized drying carbonizing apparatus described in claim 1, it is characterized in that: described I ~ No. IV multiple-grooved flue gas air heat exchanger (b ₁~ b ₄) be connected with heat pipe vapor-water heat exchanger (6) and No. I high pressure positive blower (5), I ~ No. IV multiple-grooved flue gas air heat exchanger (b ₁~ b ₄) high-pressure hot air (D) that formed, be connected with No. II jet pump (18) through high temperature air inlet air plenum (17), No. II jet pump (18) is connected with vapor-water heat exchanger (11).

6. according to brown coal fluidized drying carbonizing apparatus described in claim 1, it is characterized in that: described ash melts the slag bath (15) that poly-burner (16) below is provided with liquid slag.

7. according to brown coal fluidized drying carbonizing apparatus described in claim 1, it is characterized in that: the band ash water of condensation of described condenser (24) bottom connects with settling tank (23).