CN202953978U - Device for making coke from pulverized coal - Google Patents
Device for making coke from pulverized coal Download PDFInfo
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- CN202953978U CN202953978U CN 201220673094 CN201220673094U CN202953978U CN 202953978 U CN202953978 U CN 202953978U CN 201220673094 CN201220673094 CN 201220673094 CN 201220673094 U CN201220673094 U CN 201220673094U CN 202953978 U CN202953978 U CN 202953978U
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Abstract
The utility model discloses a device for making coke from pulverized coal. The device comprises a plurality of carbonization chambers, wherein each carbonization chamber comprises a plurality of pulverized coal carrying plates which are downwards and obliquely mounted layer by layer, a plurality of layers of heat exchange units which are constituted by utilizing the plurality of the pulverized coal carrying plates and mutually communicated, a material distribution port formed in the top of the carbonization chamber, a hot carrier gas generation device for generating hot carrier gas by combustion or heating, and a curve type semi-coke discharge channel arranged below the carbonization chamber. According to the device, gas flow regions of all the layers of the heat exchange units ensure that the hot carrier gas generated by combustion or heating flows to all the layers of the heat exchange regions from bottom to top and respectively performs heat exchange with pulverized coal layers of all the heat exchange units so as to generate pulverized semi-coke, coal gas and coal tar.
Description
Technical field
The utility model relates to a kind of by coal system burnt technical field, particularly a kind of fine coal coke making apparatus.
Background technology
Semicoke claims again blue charcoal, is the flammable solid product by raw coal low-temperature pyrolysis gained.Raw coal removes sulphur and the coal gas of pyrolysis water, tar, part in the fast pyrogenation process.The productive rate of raw coal semicoke processed is about the 50%-70% of feed coal quality.
The semicoke look is deceived porous, and main component is carbon, ash content and volatile matter.Its ash oontent depends on the raw material ature of coal, the about 5%-20% of volatile content (quality).With coke, compare, volatile content is high, and porosity is large and physical strength is low.Compare with carbon monoxide, steam or oxygen, there is stronger reactive behavior.Semicoke is good high heat value smokeless fuel, and mainly as industry or domestic fuel, also for the synthesis of gas, calcium carbide production etc., the reductive agent while smelting as copper mine or phosphorus ore etc. on a small quantity, in addition also as coke making and coal blending.
Semicoke contains the calorific value higher than coal body.The grindability index of semicoke, reactivity and incendivity are all good than coal, and therefore, semicoke can replace hard coal to be used as Steel Plant and the desirable Suo of power plant's blast furnace blows fuel, and the sintering materials of Steel Plant.
Existing coal semicoke pyrolysis oven, no matter be internal heat type or external-heat, granularity to the raw coal that uses all requires between 20mm-80mm, and the following fine coal of 20mm, because gap is little, ventilation property is poor, the reason such as the flame penetration power is not enough or thermal energy conduction is not smooth, for Jiao processed, can cause the temperature of same coal seam different sites unbalanced, pyrolysis is inhomogeneous, cause portioned product burning, portioned product underburnt, quality is unstable; Simultaneously, the coal gas after pyrolysis also can't be discharged smoothly.In addition, coal gas is carried dust secretly and is overflowed, and causes tar and dust to break away from, and affects the tar quality.
Summary of the invention
The utility model technical issues that need to address just are to overcome the defect of prior art, and the fine coal coke making apparatus is provided.
According to the utility model, a kind of fine coal coke making apparatus is provided, comprise a plurality of coking chambers, its each coking chamber comprises:
A plurality of fine coal loading plates of successively downward-sloping installation;
The Multi-layer thermal crosspoint be interconnected that utilizes described a plurality of fine coal loading plate to form;
Be arranged at the cloth mouth on coking chamber top;
For by burning or add the thermal barrier gas generation apparatus of thermogenesis thermal barrier gas;
Be arranged at the curvilinear style semicoke tapping channel of coking chamber below.
Preferably, described each coking chamber surrounds by refractory wall.
Preferably, described thermal barrier gas generation apparatus reaches in described coking chamber from described refractory wall.
Preferably, described refractory wall is hollow wall, the combustion chamber that described thermal barrier gas generation apparatus consists of described hollow wall.
Preferably, on described fine coal loading plate, have a plurality of for from below, the fine coal layer the fine coal loading plate being carried out the ventilation air gap of fine coal heating pyrolysis; And each fine coal loading plate bottom all has the opening flowed downward for fine coal; Wherein, the bottom of the upper strata fine coal loading plate of any two adjacent fine coal loading plates is near the upper end of lower floor's fine coal loading plate.
Preferably, the angle of fine coal loading plate and coking chamber inboard is between 20 degree to 70 degree.
Preferably, described heat exchange unit surrounds by the upper strata fine coal loading plate lower surface of two adjacent fine coal loading plates and lower floor's fine coal loading plate upper surface and coking chamber inwall on every side thereof.
Preferably, the fine coal loading plate of every layer of heat exchange unit is provided with the air flue be communicated with its gas flow area, the gas flow area of every layer of heat exchange unit is connected with the gas flow area that is located thereon layer heat exchange unit by the upper air flue be located thereon, and by the downtake be positioned under it, with the gas flow area that is positioned at its lower floor's heat exchange unit, is connected.
Preferably, the air flue that is positioned at one or more heat exchange units on coking chamber top arranges duct control system.
Preferably, the air flue that is positioned at one or more heat exchange units of coking chamber middle and lower part arranges duct control system.
With respect to prior art, useful technique effect of the present utility model is: the fine coal for particle diameter below 20mm, the utility model can fundamentally guarantee in the burnt process of fine coal system that the fine coal equilibrium is heated, heat exchange, gas dust filters, and the coal gas overflow channel is unobstructed, thereby can make fine coal Jiao processed carry out smoothly.In addition, the utility model, by utilizing up thermal barrier gas to carry out preheating to fine coal, reaches descending semicoke freezing air and coal gas is carried out to preheating, and heat energy is taken full advantage of, and reaches the purpose of energy-saving and emission-reduction.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of internal heat type fine coal coke making apparatus of the present utility model;
Fig. 2 is the schematic diagram of a kind of external-heat fine coal coke making apparatus of the present utility model;
Fig. 3 is the schematic diagram of the fine coal semicoke coking chamber shown in Fig. 1 and 2;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is that the C of Fig. 3 is to view;
Fig. 6 is the schematic diagram after fine coal semicoke coking chamber is distributed into fine coal;
Fig. 7 a is a kind of structure and the distribution schematic diagram of the air gap on the fine coal loading plate of fine coal semicoke coking chamber;
Fig. 7 b is another kind of structure and the distribution schematic diagram of the air gap on the fine coal loading plate of fine coal semicoke coking chamber;
Fig. 7 c is another kind of structure and the distribution schematic diagram of the air gap on the fine coal loading plate of fine coal semicoke coking chamber.
Embodiment
As depicted in figs. 1 and 2, the utility model provides a kind of fine coal coke making apparatus, comprise fine coal coke oven 1 processed, described fine coal coke oven 1 processed is respectively cloth mouth 2, venting port 10, the burnt coking chamber 8 of a plurality of fine coal system, coke outlet 9, semicoke tapping channel 5, gas flow channel 6 and air and gas inlet 7 from top to bottom.
Fig. 1 has shown internal heat type fine coal coke making apparatus of the present utility model.Wherein fine coal coke oven processed 1 top is cloth mouth 2, is useful on the charging vehicle of cloth on cloth mouth 2.Fine coal coke oven processed 1 below is coke outlet 9 and coke extractor 19, for collecting and release the powdery semicoke.Fine coal coke oven 1 processed has outer partition wall and a plurality of internal partition wall 21, and the burnt coking chamber 8 of each fine coal system surrounds by partition wall, and for example fine coal system burnt coking chamber 8 in the outside is surrounded by outer partition wall and internal partition wall, is positioned at the burnt coking chamber 8 of inner fine coal system and is surrounded by two internal partition walls.Successively set up relatively alternately a plurality of fine coal loading plates 18 on the partition wall of two of interior left and right of the burnt coking chamber 8 of each fine coal system, thereby at the interior Multi-layer thermal crosspoint 81 (referring to Fig. 3) that formed of the burnt coking chamber 8 of fine coal system.In addition, the burnt coking chamber of each fine coal system 8 belows are provided with internal heat type heating unit (Suo mouth 16 and the gas passage 15 that is communicated with nozzle 16).
Fig. 2 has shown external-heat fine coal coke making apparatus of the present utility model.Wherein fine coal coke oven processed 1 top is cloth mouth 2, is useful on the charging vehicle of cloth on cloth mouth 2.Fine coal coke oven processed 1 below is coke outlet 9 and coke extractor 19, for collecting and release the powdery semicoke.Fine coal coke oven 1 processed has outer partition wall and a plurality of internal partition wall 21, and the burnt coking chamber 8 of each fine coal system surrounds by partition wall, and for example fine coal system burnt coking chamber 8 in the outside is surrounded by outer partition wall and internal partition wall, is positioned at the burnt coking chamber 8 of inner fine coal system and is surrounded by two internal partition walls.Successively set up relatively alternately a plurality of fine coal loading plates 18 on the partition wall of two of interior left and right of the burnt coking chamber 8 of each fine coal system, thereby at the interior Multi-layer thermal crosspoint 81 (referring to Fig. 3) that formed of the burnt coking chamber 8 of fine coal system.In addition, be provided with external-heat heating unit 20 between the burnt coking chamber 8 of fine coal system, as the partition wall combustion chamber.
Particularly, the utility model is mainly to have developed a kind of burnt coking chamber 8 of fine coal system that is suitable for fine coal Jiao processed, and utilizes the burnt coking chamber 8 of this fine coal system by fine coal Jiao's processed method.
Below mainly in conjunction with Fig. 1 to Fig. 7 to of the present utility model comprise the fine coal coke making apparatus of the burnt coking chambers 8 of a plurality of fine coal systems and made burnt method in coking chamber be elaborated.
Fig. 3 has shown the concrete structure schematic diagram of the burnt coking chamber 8 of the fine coal system shown in Fig. 1 and Fig. 2.As shown in Figure 3, the burnt coking chamber 8 of the utility model fine coal system comprises:
A plurality of fine coal loading plates 18 of successively downward-sloping installation;
The Multi-layer thermal crosspoint 81 be interconnected that utilizes described a plurality of fine coal loading plate 18 to form, its every layer heat exchange unit 81 all has fine coal build-up areas (corresponding to the fine coal layer 811 shown in Fig. 6) and the gas flow area 812 based on fine coal loading plate 18, in order to form fine coal and the burnt environment of the flowable fine coal system of gas;
Be arranged at the cloth mouth 82 on coking chamber top, for fine coal is distributed into to each layer of heat exchange unit 81 from top to bottom, when being distributed into fine coal, utilize the extruding supporting role between fine coal, make on the fine coal build-up areas of every layer of heat exchange unit and pile up the fine coal layer 811 (as shown in Figure 6) diagonally distributed is arranged respectively, and form and be positioned at the gas flow area 812 (as shown in Figure 6) on inclination fine coal layer thus;
The thermal barrier gas generation apparatus, for by the burning or add thermogenesis thermal barrier gas, thermal barrier gas utilizes the gas flow area of each layer, flow to from bottom to top each layer of heat exchange unit 81, carries out heat exchange with the fine coal layer 811 of each heat exchange unit respectively;
Be arranged at the curvilinear style semicoke tapping channel 5 of coking chamber below, curyilinear semicoke tapping channel 5, under same vertical height, has increased the length of semicoke tapping channel 5, increases the descending resistance of coking chamber gas, extend the semicoke downgoing time, make semicoke that longer being cooled the time be arranged.As shown in Figure 1, between the tapping channel 5 of adjacent two coking chambers, gas flow channel 6 is set, coal gas and air enter before the internal heat type heating unit and the high temperature semicoke are carried out cooling by force through gas flow channel 6, realize the dry coke quenching purpose; Coal gas or air itself utilize the semicoke waste heat to obtain preheating simultaneously, play a role in energy conservation.As shown in Figure 2, be provided with partition wall combustion chamber 20 between adjacent two coking chambers, and between the tapping channel 5 of adjacent two coking chambers, gas flow channel 6 is set, coal gas and air enter through gas flow channel 6 that partition wall combustion chamber 20 is front carries out coolingly by force to the high temperature semicoke, realize the dry coke quenching purpose; Coal gas or air itself utilize the semicoke waste heat to obtain preheating simultaneously, play a role in energy conservation.
Below each integral part in the burnt coking chamber 8 of fine coal system is elaborated.
As shown in Fig. 3 to 6, on each fine coal loading plate 18, all have a plurality of for from its below, the fine coal layer 811 it being carried out to the ventilation air gap 181 of pulverized coal pyrolysis.
As shown in Figure 7a, ventilation air gap 181 is preferably the long strip shape through hole that connects fine coal loading plate 18; It can be also billet shape through hole as shown in Figure 7b; Can be also round tube hole as shown in Figure 7 c, and preferably according to Triangle-Profile on fine coal loading plate 18.Wherein, fine coal can not be descending by air gap 181 in descending process, and mobile thermal barrier gas can be up through air gap 181 from bottom to top.
As shown in Fig. 3 or 6, each fine coal loading plate 18 bottom all has the opening 182 flowed downward for fine coal, and the bottom of the upper strata fine coal loading plate of any two adjacent fine coal loading plates 18 is near the upper end of lower floor's fine coal loading plate, and the angle of fine coal loading plate 18 and coking chamber inboard is between 20 degree to 70 degree.
As shown in Fig. 3 or 6, every layer of heat exchange unit 81 of the present utility model surrounds by the upper strata fine coal loading plate lower surface of two adjacent fine coal loading plates 18 and lower floor's fine coal loading plate upper surface and coking chamber inwall on every side thereof; When being distributed into fine coal, every layer of heat exchange unit 81 utilizes the fine coal loading plate 18 of its inclination to pile up inclination fine coal layer 811 thereon, and formation is positioned at the gas flow area 812 on inclination fine coal layer.
As shown in Figure 4, the fine coal loading plate 18 of every layer of heat exchange unit of the utility model 81 is provided with the air flue 80 be communicated with its gas flow area 812, the gas flow area 812 of every layer of heat exchange unit 81 is connected with the gas flow area that is located thereon layer heat exchange unit by the upper air flue be located thereon, and by the downtake be positioned under it, with the gas flow area that is positioned at its lower floor's heat exchange unit, is connected.
Except air flue shown in Fig. 3 to Fig. 5, the utility model also can arrange a plurality of air flues that pass successively from top to bottom each fine coal loading plate 18, air flue part between adjacent fine coal loading plate 18 all offers the ventage be connected with the gas flow area 812 of this layer of heat exchange unit 81, thermal barrier gas flow to each layer of heat exchange unit from bottom to top by this air flue, and by this ventage and each heat exchange unit from top to down mobile fine coal layer carry out heat exchange.
In addition, when the burnt coking chamber 8 of fine coal system is the internal heat type structure, the burnt coking chamber 8 of fine coal system is divided into preheating and drying district 31, pyrogenation and carbonization district 32, burning coking district 33 and semicoke cooling zone 34; When the burnt coking chamber 8 of fine coal system is the external-heat structure, the burnt coking chamber 8 of fine coal system is divided into preheating and drying district 31, pyrogenation and carbonization district 32 and semicoke cooling zone 34, the air flue of the one or more heat exchange units 81 in its preheating and drying district 31 arranges duct control system, when the many dust of gas entrainment to be discharged, close one or several duct control system, force thermal barrier gas to pass from the air gap 181 of fine coal loading plate 18 and fine coal, utilize the dust in 811 pairs of gas to be discharged of undried fine coal layer of piling up on fine coal loading plate 18 to be filtered.
In addition, when the burnt coking chamber 8 of fine coal system is the internal heat type structure, the air flue of one or more heat exchange units 81 in its burning coking district arranges duct control system, enter the interior coal gas of coking chamber and the pressure size of air for basis, close one or several air flue, force thermal barrier gas to pass from the ventilation air gap 181 of top fine coal loading plate 18 and fine coal, make thermal barrier gas and fine coal heat exchange more abundant, enhance productivity.
As shown in Figure 2, a plurality of fine coal loading plates with the ventilation air gap of successively installing in coking chamber can be also trilateral or arc.Wherein, while being distributed into fine coal, under the effect of described fine coal loading plate, fine coal is descending, pile up inclination fine coal layer on the fine coal loading plate of every layer of heat exchange unit, and form and be positioned at the gas flow area on inclination fine coal layer thus, that is to say, pile up on each fine coal loading plate inclination fine coal layer is arranged, under be distributed with gas flow area; Wherein, on the fine coal loading plate, have a plurality of for from below, the fine coal layer the fine coal loading plate being carried out the ventilation air gap of fine coal heating pyrolysis, fine coal can not be descending by described air gap in descending process, and mobile thermal barrier gas can be up through described air gap from bottom to top.
Below mainly the utility model is made to burnt method in the burnt coking chamber 8 of fine coal system and is described in detail.
Describe fine coal system Jiao method of the present utility model in detail below in conjunction with Fig. 6, in general, fine coal system Jiao method of the present utility model comprises the following steps:
Downward-sloping fine coal loading plate 18 successively is installed in the coking chamber 8 for fine coal Jiao processed;
Utilize a plurality of fine coal loading plates 18 to form the Multi-layer thermal crosspoint 81 be interconnected, its every layer heat exchange unit 81 all has fine coal build-up areas (corresponding to the fine coal layer 811 shown in Fig. 6) and the gas flow area 812 based on fine coal loading plate 18, in order to form fine coal and the burnt environment of the flowable fine coal system of gas;
Fine coal is distributed in each layer of heat exchange unit 81 from top to bottom, makes the fine coal layer 811 that on the fine coal build-up areas of every layer of heat exchange unit 81, accumulation diagonally distributes respectively;
Utilize the gas flow area 812 of each layer or to add thermogenetic thermal barrier gas and flow to from bottom to top each layer of heat exchange unit by burning, make thermal barrier gas respectively with each heat exchange unit 81 from top to down mobile fine coal layer carry out heat exchange.
Particularly, in the utility model system Jiao method, the step that downward-sloping fine coal loading plate successively is installed comprises:
As shown in Fig. 3 or 6, a plurality of downward-sloping fine coal loading plates 18 with ventilation air gap 181 successively relatively are installed alternately in coking chamber 8 inboards, are made the bottom of upper strata fine coal loading plate of any two adjacent fine coal loading plates 18 near the upper end of lower floor's fine coal loading plate; Wherein, the bottom of each fine coal loading plate 18 all has the opening flowed downward for fine coal; Wherein, the angle of fine coal loading plate 18 and coking chamber inboard is between 20 degree to 70 degree; Wherein, on the fine coal loading plate, have a plurality of for from below, the fine coal layer the fine coal loading plate being carried out the ventilation air gap of fine coal heating pyrolysis, fine coal can not be descending by described air gap in descending process, and mobile thermal barrier gas can be up through described air gap from bottom to top.
In addition, the step that the utility model is successively installed downward-sloping fine coal loading plate also comprises: the fine coal loading plate that the shapes such as a plurality of trilaterals with the ventilation air gap or arc successively are installed in coking chamber; Wherein, while being distributed into fine coal, under the effect of described fine coal loading plate, fine coal is descending, pile up inclination fine coal layer on the fine coal loading plate of every layer of heat exchange unit, and form and be positioned at the gas flow area on inclination fine coal layer thus, that is to say, pile up on each fine coal loading plate inclination fine coal layer is arranged, under be distributed with gas flow area; Wherein, on described fine coal loading plate, have a plurality of for from below, the fine coal layer the fine coal loading plate being carried out the ventilation air gap of fine coal heating pyrolysis, its role is to, fine coal can not be descending by described air gap in descending process, and mobile thermal barrier gas can be up through described air gap from bottom to top.
Particularly, in the utility model system Jiao method, thermal barrier gas comprises with each heat exchange unit 81 step that mobile fine coal layer carries out heat exchange from top to down respectively:
Coal gas and air produce thermal barrier gas after burning or heating, on the air flue of thermal barrier gas by upper strata fine coal floor or fine coal loading plate one side, are advanced into each heat exchange unit in pyrogenation and carbonization district and are full of its gas flow area;
The thermal barrier gas of the gas flow area of each heat exchange unit goes out fugitive constituent by the conduction of the fine coal loading plate on it and air gap thereof to the fine coal heating pyrogenation and carbonization that is located thereon layer, and directly the fine coal heating pyrogenation and carbonization be positioned under it is gone out to fugitive constituent;
The fugitive constituent that destructive distillation goes out and the thermal barrier gas gas flow area by each pyrogenation and carbonization district continues up, and the fine coal in fine coal preheating and drying district 31 is carried out to preheating and drying.
The system Jiao method of the burnt coking chamber 8 of the fine coal system of embodiment 1 internal heat type structure
As shown in Figure 1, when the burnt coking chamber 8 of fine coal system is the internal heat type structure, the burnt coking chamber 8 of fine coal system is divided into preheating and drying district 31, pyrogenation and carbonization district 32, burning coking district 33 and semicoke cooling zone 34, wherein: preheating and drying district 31 comprises several heat exchange units that are positioned at coking chamber top, for fine coal preheating and drying; The pyrogenation and carbonization district comprises several heat exchange units that are positioned at the coking chamber middle and upper part, and for preheating and dried fine coal are carried out to low temperature pyrogenation, destructive distillation goes out fugitive constituent in fine coal; Burning coking district comprises several heat exchange units that are positioned at the coking chamber middle and lower part, for generation of thermal barrier gas, and warm solution in carrying out further to the fine coal through the pyrolysis of pyrogenation and carbonization district, destructive distillation goes out fugitive constituent residual in fine coal, produces the powdery semicoke; The semicoke cooling zone comprises several heat exchange units and the curvilinear style semicoke tapping channel that is positioned at the coking chamber bottom, for air and the coal gas that utilizes the high temperature semicoke to enter outside, carries out preheating, and semicoke is carried out cooling, discharges the low temperature semicoke.
In the utility model system Jiao method, thermal barrier gas comprises with each heat exchange unit step that mobile fine coal layer carries out heat exchange from top to down respectively:
Enter coal gas and air through burning after the generation thermal barrier gas of burning in the coking district, be advanced into each heat exchange unit in pyrogenation and carbonization district on the air flue of thermal barrier gas by upper strata fine coal floor or fine coal loading plate one side and be full of each gas flow area in each pyrogenation and carbonization district; The thermal barrier gas of the gas flow area of each heat exchange unit goes out fugitive constituent through the fine coal loading plate on it and air gap thereof to the fine coal heating pyrogenation and carbonization that is located thereon layer, and directly the fine coal heating pyrogenation and carbonization be positioned under it is gone out to fugitive constituent; The fugitive constituent that destructive distillation goes out and the thermal barrier gas gas flow area by each pyrogenation and carbonization district continues up, and the fine coal in fine coal preheating and drying district 31 is carried out to preheating and drying.
For the burnt coking chamber 8 of internal heat type fine coal system, the process that the utility model is made semicoke by fine coal is: fine coal enters stove from cloth mouth 2, under the effect of fine coal loading plate, fine coal enters the preheating and drying district 31 of the burnt coking chamber 8 of internal heat type fine coal system from top to bottom successively, through preheating, evaporates moisture content; Dried coal powder is advanced into the pyrogenation and carbonization district under continuing and carries out low temperature pyrogenation, and destructive distillation goes out fugitive constituent in fine coal; Enter warm solution burning coking district from the pyrogenation and carbonization district, destructive distillation goes out fugitive constituent; Finally enter the semicoke cooling zone through air and coal gas cooling after, produce the low temperature semicoke, by coke extractor 19, discharge.
The process of the gas flow of the utility model method is: coal gas and air enter from inlet mouth 7, up by the gas flow channel 6 formed between adjacent semicoke tapping channel 5, in the semicoke cooling zone, utilize the high temperature semicoke to carry out preheating, enter gas Suo from gas passage 15 and go out device, spray into the burning of burning coking district from nozzle 16 and produce thermal barrier gas, thermal barrier gas is up through the gas flow area in each heat exchange unit of pyrogenation and carbonization district, levels fine coal is carried out to pyrolysis, destructive distillation goes out fugitive constituent, coal gas gas is up walked again, evaporate water vapor by preheating and drying district 31, finally by venting port 10, efflux.
The utility model method can be produced semicoke, coal gas and tar, thereby has solved the biggest problem of fine coal Jiao processed.
The system Jiao method of the burnt coking chamber 8 of the fine coal system of embodiment 2 external-heat structures
As shown in Figure 2, when the burnt coking chamber 8 of fine coal system is the external-heat structure, coking chamber is divided into preheating and drying district 31, pyrogenation and carbonization district 32 and semicoke cooling zone 34, and wherein: preheating and drying district 31 comprises several heat exchange units that are positioned at coking chamber top, for fine coal preheating and drying; The pyrogenation and carbonization district comprises several heat exchange units that are positioned at coking chamber middle part and bottom, and for preheating and dried fine coal are carried out to pyrolysis, destructive distillation goes out fugitive constituent in fine coal, produces the powdery semicoke; The semicoke cooling zone comprises several heat exchange units and the curvilinear style semicoke tapping channel that is positioned at the coking chamber bottom, for air and the coal gas that utilizes the high temperature semicoke to enter outside, carries out preheating, and semicoke is carried out cooling, discharges the low temperature semicoke.
In the utility model system Jiao method, thermal barrier gas comprises with each heat exchange unit step that mobile fine coal layer carries out heat exchange from top to down respectively:
Coal gas and air produce thermal barrier gas in partition wall combustion chamber internal combustion, the heat energy of this thermal barrier gas carries out heat exchange through the fine coal of partition wall thermal conduction and each heat exchange unit, fine coal through low, in after warm solution destructive distillation go out coal gas, be advanced into each heat exchange unit in pyrogenation and carbonization district on the air flue of thermal barrier coal gas by upper strata fine coal floor or fine coal loading plate one side simultaneously and be full of each gas flow area in each pyrogenation and carbonization district; The thermal barrier coal gas of the gas flow area of each heat exchange unit goes out fugitive constituent through the fine coal loading plate on it and air gap thereof to the fine coal heating pyrogenation and carbonization that is located thereon layer, and directly the fine coal heating pyrogenation and carbonization be positioned under it is gone out to fugitive constituent; The fugitive constituent that destructive distillation goes out and the thermal barrier coal gas gas flow area by each pyrogenation and carbonization district continues up, and the fine coal in fine coal preheating and drying district 31 is carried out to preheating and drying.
For the burnt coking chamber 8 of external-heat fine coal system, the process that the utility model is made semicoke by fine coal is: fine coal enters stove from cloth mouth 2, under the effect of fine coal loading plate, fine coal enters the preheating and drying district 31 of the burnt coking chamber 8 of external-heat fine coal system from top to bottom successively, through preheating, evaporates moisture content; Dried coal powder is advanced into the pyrogenation and carbonization district under continuing and carries out pyrolysis, and destructive distillation goes out fugitive constituent; Finally from the pyrogenation and carbonization district enter the semicoke cooling zone through air and coal gas cooling after, produce the low temperature semicoke, by coke extractor 19, discharge.
The process of the gas flow of the utility model method is: coal gas and air are up by the gas flow channel 6 formed between adjacent semicoke tapping channel 5, in the semicoke cooling zone, utilize the high temperature semicoke to carry out preheating, enter combustion chamber from inlet mouth 7, produce thermal barrier gas through burning, the gas flow area that the heat energy of thermal barrier gas is transmitted in each heat exchange unit by partition wall is also up, levels fine coal is carried out to pyrolysis, destructive distillation goes out fugitive constituent, coal gas gas is up walked again, evaporate water vapor by preheating and drying district 31, finally efflux by venting port 10.
The utility model method can be produced semicoke, coal gas and tar, thereby has solved the biggest problem of fine coal Jiao processed.
The utility model also provides a kind of method of utilizing above-mentioned system Jiao method to be dried fine coal or meal, for the fine coal high to water ratio, carries out drying and processing.
The utility model also provides a kind of and utilizes above-mentioned system Jiao method the resinous shale of powdery (20mm is following) to be carried out to the method for pyrogenation and carbonization.
The utility model is Jiao of the fine coal system below 20mm to particle diameter, and can realize fine coal heat exchange equilibrium, thereby produce powdery semicoke, coal gas and coal tar.
Finally it should be noted that: obviously, above-described embodiment is only for the utility model example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being amplified out thus or change are still among protection domain of the present utility model.
Claims (10)
1. a fine coal coke making apparatus, comprise a plurality of coking chambers, it is characterized in that, each coking chamber comprises:
A plurality of fine coal loading plates of successively downward-sloping installation;
The Multi-layer thermal crosspoint be interconnected that utilizes described a plurality of fine coal loading plate to form;
Be arranged at the cloth mouth on coking chamber top;
For by burning or add the thermal barrier gas generation apparatus of thermogenesis thermal barrier gas;
Be arranged at the semicoke tapping channel of coking chamber below.
2. fine coal coke making apparatus according to claim 1, is characterized in that, described each coking chamber surrounds by refractory wall.
3. fine coal coke making apparatus according to claim 2, is characterized in that, described thermal barrier gas generation apparatus reaches in described coking chamber from described refractory wall.The tapping channel of adjacent two coking chambers between the induction trunk that leads to described combustion chamber is set.
4. fine coal coke making apparatus according to claim 3, is characterized in that, described refractory wall is hollow wall, the combustion chamber that described thermal barrier gas generation apparatus consists of described hollow wall.
5. according to claim 1 or 2 or 3 or 4 described fine coal coke making apparatus, it is characterized in that, have a plurality of for from below, the fine coal layer the fine coal loading plate being carried out the ventilation air gap of fine coal heating pyrolysis on described fine coal loading plate; And each fine coal loading plate bottom all has the opening flowed downward for fine coal;
Wherein, the bottom of the upper strata fine coal loading plate of any two adjacent fine coal loading plates is near the upper end of lower floor's fine coal loading plate.
6. fine coal coke making apparatus according to claim 5, is characterized in that, the angle of fine coal loading plate and coking chamber inboard is between 20 degree to 70 degree.
7. fine coal coke making apparatus according to claim 6, is characterized in that, described heat exchange unit surrounds by the upper strata fine coal loading plate lower surface of two adjacent fine coal loading plates and lower floor's fine coal loading plate upper surface and coking chamber inwall on every side thereof.
8. fine coal coke making apparatus according to claim 7, it is characterized in that, the fine coal loading plate of every layer of heat exchange unit is provided with the air flue be communicated with its gas flow area, the gas flow area of every layer of heat exchange unit is connected with the gas flow area that is located thereon layer heat exchange unit by the upper air flue be located thereon, and by the downtake be positioned under it, with the gas flow area that is positioned at its lower floor's heat exchange unit, is connected.
9. fine coal coke making apparatus according to claim 8, is characterized in that, the air flue that is positioned at one or more heat exchange units on coking chamber top arranges duct control system.
10. fine coal coke making apparatus according to claim 9, is characterized in that, the air flue that is positioned at one or more heat exchange units of coking chamber middle and lower part arranges duct control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220673094 CN202953978U (en) | 2012-12-07 | 2012-12-07 | Device for making coke from pulverized coal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220673094 CN202953978U (en) | 2012-12-07 | 2012-12-07 | Device for making coke from pulverized coal |
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| CN202953978U true CN202953978U (en) | 2013-05-29 |
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| CN 201220673094 Expired - Fee Related CN202953978U (en) | 2012-12-07 | 2012-12-07 | Device for making coke from pulverized coal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111152322A (en) * | 2018-11-08 | 2020-05-15 | 上海莱乾新能源有限公司 | Intelligent heat-insulation anaerobic carbonization equipment |
| CN113088306A (en) * | 2021-03-23 | 2021-07-09 | 宁波连通设备集团有限公司 | Direct heating type multistage series turbulent bed pyrolysis distillation furnace in combustion flame furnace |
-
2012
- 2012-12-07 CN CN 201220673094 patent/CN202953978U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111152322A (en) * | 2018-11-08 | 2020-05-15 | 上海莱乾新能源有限公司 | Intelligent heat-insulation anaerobic carbonization equipment |
| CN113088306A (en) * | 2021-03-23 | 2021-07-09 | 宁波连通设备集团有限公司 | Direct heating type multistage series turbulent bed pyrolysis distillation furnace in combustion flame furnace |
| CN113088306B (en) * | 2021-03-23 | 2022-04-12 | 宁波连通设备集团有限公司 | Direct heating type multistage series turbulent bed pyrolysis distillation furnace in combustion flame furnace |
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