CN102994104B - Coal pyrolysis furnace - Google Patents

Coal pyrolysis furnace Download PDF

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Publication number
CN102994104B
CN102994104B CN201110453464.4A CN201110453464A CN102994104B CN 102994104 B CN102994104 B CN 102994104B CN 201110453464 A CN201110453464 A CN 201110453464A CN 102994104 B CN102994104 B CN 102994104B
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coal
heat decomposition
decomposition stove
refractory materials
combustion chamber
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CN201110453464.4A
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Chinese (zh)
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CN102994104A (en
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王新民
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山西鑫立能源科技有限公司
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Abstract

The invention relates to a coal pyrolysis furnace which comprises a coal inlet device (1) of the coal pyrolysis furnace, a coal preheating device (2) of the coal pyrolysis furnace, a preheated coal feeding device (3) of the coal pyrolysis furnace, a coal heating device (4) of the coal pyrolysis furnace, a coke modification device (5) of the coal pyrolysis furnace, a coke dry quenching device (6) of the coal pyrolysis furnace and a coke push and discharge device (7) of the coal pyrolysis furnace. A thermal circulation continuous coking process can utilize waste heat to dry and preheat coal fed into the furnace, thereby lowering energy consumption and reducing the generation of smoke dust; the oil gas yield is increased, no circulating water is used, no fresh water is consumed, no waste water or waste residue is generated, and the up-to-standard discharge of tail gas can be achieved through a bag-type dust remover; and the coal is conditioned, thereby widening coal types and coal sources, improving the coke quality and increasing the oil gas field. By utilizing a thermal circulation continuous coke furnace, the raw coal cost is lowered by 200 Yuan; the benefit of chemical products, methane gas, hydrogen gas and combustion gas can be increased by 700 Yuan; the profit for the production of one ton of coke can be up to 900 Yuan; and the profit and tax of a coking scale with an annual production of million tons can be up to 90 million Yuan.

Description

Coal heat decomposition stove
Technical field
The invention belongs to a kind of pit kiln, be specifically related to a kind of coal heat decomposition stove.
Background technology
There is the various problems such as the serious surplus of production capacity, industrial concentration is lower, industrial pattern is unreasonable, comprehensive utilization of resources level is not high, environmental pollution in Coke Industry at present.Coking coal resource is in short supply now, coal price goes up, coal chemical enterprise loss is larger; Tradition coke making process, resource utilization is low, and intermittent type is coaling, and cannot eliminate serious environmental pollution, and along with standard of living improves, environmental standard is increasingly severe, and environmental requirement is more and more higher, and energy-saving and emission-reduction task completes arduousness; Traditionization product recovery process drops into many, and income is few, is difficult to adapt to fierce turn of the market present situation; World market pressure increases; The direct combustion power generation of fat coal, unfortunate many precious resources of coal; Tradition coking energy consumption is large, and flue dust is many; Dry coke quenching tower floor space is large, and the pollution waste of water resources and the loss of energy that adopt water quenching to cause are large, and exhaust emissions is not up to standard.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of coal heat decomposition stove, and the core technology of thermal cycling Continuous coking can be provided, and Heating temperature is controlled, so upper that to go; Material is smooth and easy, under get, and whole thermal cycling Continuous coking technique has been carried out to the calculating of material and energy balance, significantly energy-conservation and water saving, has good environmental benefit and can expand coking coal resource, improves coke quality simultaneously.
Technical scheme of the present invention: a kind of coal heat decomposition stove, it comprises: what the coal primary heater unit 2 that enters device for coal 1, coal heat decomposition stove of coal heat decomposition stove, the pre-hot coal of coal heat decomposition stove entered the heating unit 4 of the coal of furnace apparatus 3, coal heat decomposition stove, the dry coke quenching auxiliary 6 of the burnt modifying apparatus 5 of coal heat decomposition stove, coal heat decomposition stove and coal heat decomposition stove pushes away discharging device for coke 7; The entering device for coal 1 it comprise spiral deliver coal device 8, hopper 9, rotation stoker 10, funnel plate 11, coal divider 12, divider 13, sleeve pipe 14, tremie pipe 15, moving casing 16 and straight tube 17 of coal heat decomposition stove; The deliver coal below of device 8 of spiral is provided with hopper 9, and hopper 9 is connected with rotation stoker 10 by flange, and rotation stoker 10 is connected with coal divider 12, and coal divider 12 passes through sleeve pipe 14 and is connected with tremie pipe 15; The coal primary heater unit 2 of coal heat decomposition stove, it comprises cover plate 18, cylindrical shell 19, closing cap 20, closing cap base plate 21, dividing plate 22, feeding port 23, epicone part 24, lower cone part 25, preheater feed opening 26, de-plate 27, coal preheater 28, center quirk 29, annular high-temp waste gas road 30, refractory materials masonry 31 and furnace shell 32; Furnace shell 32 center is provided with center quirk 29, center quirk outer net is provided with 8 coal preheaters 28, the cylindrical of coal preheater 28 is provided with annular high-temp waste gas road 30, and annular high-temp waste gas road 30 is outside equipped with refractory materials masonry 31, and refractory materials masonry 31 is outside equipped with furnace shell 32; The top of cylindrical shell 19 is connected with cover plate 18, below is connected with dividing plate 22, is provided with closing cap 20 in cylindrical shell 19, and closing cap 20 is connected with closing cap base plate 21, feeding port 23 is arranged in the sleeve of closing cap base plate 21 bottoms, feeding port 23 is connected with epicone part 24, and epicone part 24 is connected with lower cone part 25, by that analogy, epicone part is at 24 totally six layers, totally five layers of lower cone parts 25, last bottom is that epicone part 24 is connected with preheater feed opening 26, preheater feed opening 26 is connected with de-plate 27; The pre-hot coal of coal heat decomposition stove enters furnace apparatus 3, and it comprises furnace shell 32, refractory materials masonry 31, high charge level instrumentation hole 33, low level gage gaging hole 34, vision slit 35, raw gas pressure measurement thermometer hole 36, insulation shell 37, lagging material 38, feed opening 39, material level control storehouse 40, cement block 41, raw gas derivation passage 42, raw gas water-sealed valve 43 and coking chamber top 44; The inside of furnace shell 32 is provided with refractory materials masonry 31, on refractory materials masonry 31, be provided with feed opening 39, feed opening 39 is controlled storehouse 40 with material level and is connected, material level is controlled on storehouse 40 and is provided with high charge level instrumentation hole 33, low level gage gaging hole 34, vision slit 35, on furnace shell 32, be provided with raw gas pressure measurement thermometer hole 36, material level is controlled 40 belows, storehouse and is provided with insulation shell 37, cement block 41, raw gas derivation passage 42, the side that raw gas is derived passage 42 is connected with coking chamber top 44, and the opposite side that raw gas is derived passage 42 is connected with raw gas water-sealed valve 43;
The heating unit 4 of the coal of coal heat decomposition stove, it comprises body of heater 32, refractory materials masonry 31, short covering tracheae 45, exterior combustion chamber 46, coking chamber 47, inner combustion chamber 48, inner combustion chamber's short covering air flue 49, rapid heater 50, internal-quirk afterburning tracheae 54, combustion gas bustle pipe 51, air bustle pipe 52, waste gas bustle pipe 53, internal-quirk 55, outer quirk 56 and centre channel 57; In body of heater 32, be provided with refractory materials masonry 31, the upper end of body of heater 32 is provided with two sections of short covering tracheaes 45, the inner upper end of body of heater 32 is provided with two sections of exterior combustion chambers 46, lower end is provided with one section of exterior combustion chamber 46, two sections of exterior combustion chamber 46 inside are provided with coking chamber 47, the inner side of coking chamber 47 is provided with inner combustion chamber 48, in inner combustion chamber 48, be provided with inner combustion chamber's short covering air flue 49, short covering air flue 49 in inner combustion chamber's is connected with internal-quirk short covering gas bustle pipe 45, and body of heater 32 is respectively arranged with two sections of rapid heaters 50 and one section of rapid heater 50 up and down; The lower end of body of heater 32 is provided with one section of short covering tracheae 45, one section of short covering tracheae 45 is connected through refractory materials masonry 31 and one section of exterior combustion chamber 46, in the upper end of one section of exterior combustion chamber 46, be provided with the first combustion gas bustle pipe 51, the first air bustle pipe 52, the first waste gas bustle pipe 53, lower end is provided with the second combustion gas bustle pipe 51, the second air bustle pipe 52, the second waste gas bustle pipe 53, in the bottom of body of heater 32, be provided with internal-quirk afterburning tracheae 54 and internal-quirk short covering gas bustle pipe 45, the other end of internal-quirk afterburning tracheae 54 is communicated with inner combustion chamber 48; It comprises furnace shell 32, refractory materials masonry 31, burnt upgrading chamber 58, bow-shaped support 59 the burnt modifying apparatus 5 of coal heat decomposition stove; In furnace shell 32, be provided with refractory materials masonry 31, the inner side of refractory materials masonry 31 is provided with burnt upgrading chamber 58, and the below in furnace shell 32 is provided with bow-shaped support 59; It comprises furnace shell 32, refractory materials masonry 31, dry chamber 60, blast cap 61, airduct 62, bellows 63, dry feed channel 64 and the air channel, bottom 65 of putting out of putting out the dry coke quenching auxiliary 6 of coal heat decomposition stove; In furnace shell 32, be provided with refractory materials masonry 31, in refractory materials masonry 31, be provided with the dry chamber 60 of putting out, the centre that dry lower end of putting out chamber 60 is provided with four airducts 62, four airducts 62 is connected with blast cap 61, cap 61 connections follow the wind in one end of airduct 62, follow the wind case 63 of the other end connects, bellows 63 peripheries are provided with the dry feed channel 64 of putting out, and a side in air channel, bottom 65 connects with the dry chamber 60 of putting out, and the opposite side case 63 that follows the wind connects; The pushing away discharging device for coke 7 it comprise motor 66, first stage decelerator 67, the first shaft coupling 68, two stage reducer 69, the second shaft coupling 70, clutch shaft bearing 71, housing 72, screw rod 73, opening for feed 74, the second bearing 75, rotation coke discharging device 76 and discharge port 77 of coal heat decomposition stove; Motor 66 is connected with first stage decelerator 67, first stage decelerator 67 is connected with two stage reducer 69 by the first shaft coupling 68, two stage reducer 69 is connected with the second shaft coupling 70, one end of screw rod 73 is connected with clutch shaft bearing 71, the other end is connected with the second bearing 75, is provided with screw rod 73 in housing 72, is provided with opening for feed 74 on housing 72, housing 72 lower ends are provided with rotation coke discharging device 76, and the lower end of rotation coke discharging device 76 is provided with discharge port 77.The interior top of coal divider 12 is provided with funnel plate 11, and the below of funnel plate 11 is provided with divider 13.Tremie pipe 15 tops are provided with 45 ° of elbows, and the lower end of tremie pipe 15 is connected with straight tube 17 by moving casing 16.Tremie pipe 15 is set to 2~10.Feeding port 23 is integral cast steel part, and centre is provided with hydraucone, and bell-mouthed upper end is provided with venting hole.Epicone part 24 is integral cast steel part, and inside is cone-shaped body, and the lower end of cone-shaped body is provided with discharge gate.Lower cone part 25 is integral cast steel part, and centre is provided with hydraucone.Preheater feed opening 26 is integral cast steel part, and centre is provided with hydraucone, and hydraucone is connected with de-plate 27.Exterior combustion chamber 46 is comprised of 6 groups 12 outer quirks 56 on body of heater 32.Inner combustion chamber 48 is comprised of 8 internal-quirks 55 and centre channel 57.
The present invention compared with prior art, has following beneficial effect: by traditional intermittent type coking, changed into the coking of continous way, realize the production automation, accomplish on-the-spot unattended; Thermal cycling continuous coking process can utilize waste heat dry, and preheating enters stove coal, reduces energy consumption, reduces flue dust and generates; Reduce dry coke quenching tower floor space, avoided adopting the pollution waste of the water resources that water quenching causes and the loss of energy; Improve coke quality, increase oil gas quantum of output, do not use recirculated water, do not consume fresh water, there is no waste water, waste residue generates, and tail gas is qualified discharge after sack cleaner; Coking enters the direct coking of stove by the wet coal of traditional normal temperature and changes the hot coal of stove coal after modified by drying and dehydrating, rapidly pre-warming into and enter coking chamber and carry out coking, coal preheating has reached energy-conservation object through waste heat, coal is through modified, expand coal coal source, improve coke quality, improved oil gas quantum of output.Enter stove coal and carry out coking after modified by drying and dehydrating, rapidly pre-warming, Heating temperature is controlled, so upper that to go; Material is smooth and easy, under get, utilize thermal cycling continuous coke oven, raw coal cost reduces by 200 yuan, changes product, methane gas, hydrogen and combustion gas and can increase by 700 yuan of benefits, produces 1 ton of Jiao Li's profit and can reach 900 yuan, the profit of 1,000,000 tons of coking scales of annual output can reach 90,000 ten thousand yuan.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the device for coal structural representation that enters of the present invention
Fig. 3 is coal primary heater unit structural representation of the present invention
Fig. 4 is along the sectional view of A-A section line in Fig. 3
Fig. 5 is that pre-hot coal of the present invention enters furnace apparatus structural representation
Fig. 6 is the heating unit structural representation of coal of the present invention
Fig. 7 is the heating unit plan structure schematic diagram of coal of the present invention
Fig. 8 is burnt modifying apparatus structural representation of the present invention
Fig. 9 is burnt modifying apparatus plan structure schematic diagram of the present invention
Figure 10 is dry coke quenching auxiliary structural representation of the present invention
Figure 11 is dry coke quenching auxiliary plan structure schematic diagram of the present invention
Figure 12 is the discharging device for coke structural representation that pushes away of the present invention
Concrete embodiment
A coal heat decomposition stove, it comprises: what the coal primary heater unit 2 that enters device for coal 1, coal heat decomposition stove of coal heat decomposition stove, the pre-hot coal of coal heat decomposition stove entered the heating unit 4 of the coal of furnace apparatus 3, coal heat decomposition stove, the dry coke quenching auxiliary 6 of the burnt modifying apparatus 5 of coal heat decomposition stove, coal heat decomposition stove and coal heat decomposition stove pushes away discharging device for coke 7; The entering device for coal 1 it comprise spiral deliver coal device 8, hopper 9, rotation stoker 10, funnel plate 11, coal divider 12, divider 13, sleeve pipe 14, tremie pipe 15, moving casing 16 and straight tube 17 of coal heat decomposition stove; The deliver coal below of device 8 of spiral is provided with hopper 9, and hopper 9 is connected with rotation stoker 10 by flange, and rotation stoker 10 is connected with coal divider 12, and coal divider 12 passes through sleeve pipe 14 and is connected with tremie pipe 15; The coal primary heater unit 2 of coal heat decomposition stove, it comprises cover plate 18, cylindrical shell 19, closing cap 20, closing cap base plate 21, dividing plate 22, feeding port 23, epicone part 24, lower cone part 25, preheater feed opening 26, de-plate 27, coal preheater 28, center quirk 29, annular high-temp waste gas road 30, refractory materials masonry 31 and furnace shell 32; Furnace shell 32 center is provided with center quirk 29, center quirk cylindrical is provided with 8 coal preheaters 28, the cylindrical of coal preheater 28 is provided with annular high-temp waste gas road 30, and annular high-temp waste gas road 30 is outside equipped with refractory materials masonry 31, and refractory materials masonry 31 is outside equipped with furnace shell 32; The top of cylindrical shell 19 is connected with cover plate 18, below is connected with dividing plate 22, is provided with closing cap 20 in cylindrical shell 19, and closing cap 20 is connected with closing cap base plate 21, feeding port 23 is arranged in the sleeve of closing cap base plate 21 bottoms, feeding port 23 is connected with epicone part 24, and epicone part 24 is connected with lower cone part 25, by that analogy, epicone part is at 24 totally six layers, totally five layers of lower cone parts 25, last bottom is that epicone part 24 is connected with preheater feed opening 26, preheater feed opening 26 is connected with de-plate 27; The pre-hot coal of coal heat decomposition stove enters furnace apparatus 3, and it comprises furnace shell 32, refractory materials masonry 31, high charge level instrumentation hole 33, low level gage gaging hole 34, vision slit 35, raw gas pressure measurement thermometer hole 36, insulation shell 37, lagging material 38, feed opening 39, material level control storehouse 40, cement block 41, raw gas derivation passage 42, raw gas water-sealed valve 43 and coking chamber top 44; The inside of furnace shell 32 is provided with refractory materials masonry 31, on refractory materials masonry 31, be provided with feed opening 39, feed opening 39 is controlled storehouse 40 with material level and is connected, material level is controlled on storehouse 40 and is provided with high charge level instrumentation hole 33, low level gage gaging hole 34, vision slit 35, on furnace shell 32, be provided with raw gas pressure measurement thermometer hole 36, material level is controlled 40 belows, storehouse and is provided with insulation shell 37, cement block 41, raw gas derivation passage 42, the side that raw gas is derived passage 42 is connected with coking chamber top 44, and the opposite side that raw gas is derived passage 42 is connected with raw gas water-sealed valve 43; The heating unit 4 of the coal of coal heat decomposition stove, it comprises body of heater 32, refractory materials masonry 31, short covering tracheae 45, exterior combustion chamber 46, coking chamber 47, inner combustion chamber 48, inner combustion chamber's short covering air flue 49, rapid heater 50, internal-quirk afterburning tracheae 54, combustion gas bustle pipe 51, air bustle pipe 52, waste gas bustle pipe 53, internal-quirk 55, outer quirk 56 and centre channel 57; In body of heater 32, be provided with refractory materials masonry 31, the upper end of body of heater 32 is provided with two sections of short covering tracheaes 45, the inner upper end of body of heater 32 is provided with two sections of exterior combustion chambers 46, lower end is provided with one section of exterior combustion chamber 46, two sections of exterior combustion chamber 46 inside are provided with coking chamber 47, the inner side of coking chamber 47 is provided with inner combustion chamber 48, in inner combustion chamber 48, be provided with inner combustion chamber's short covering air flue 49, short covering air flue 49 in inner combustion chamber's is connected with internal-quirk short covering gas bustle pipe 45, and body of heater 32 is respectively arranged with two sections of rapid heaters 50 and one section of rapid heater 50 up and down; The lower end of body of heater 32 is provided with one section of short covering tracheae 45, one section of short covering tracheae 45 is connected through refractory materials masonry 31 and one section of exterior combustion chamber 46, in the upper end of one section of exterior combustion chamber 46, be provided with the first combustion gas bustle pipe 51, the first air bustle pipe 52, the first waste gas bustle pipe 53, lower end is provided with the second combustion gas bustle pipe 51, the second air bustle pipe 52, the second waste gas bustle pipe 53, in the bottom of body of heater 32, be provided with internal-quirk afterburning tracheae 54 and internal-quirk short covering gas bustle pipe 45, the other end of internal-quirk afterburning tracheae 54 is communicated with inner combustion chamber 48; It comprises furnace shell 32, refractory materials masonry 31, burnt upgrading chamber 58, bow-shaped support 59 the burnt modifying apparatus 5 of coal heat decomposition stove; In furnace shell 32, be provided with refractory materials masonry 31, the inner side of refractory materials masonry 31 is provided with burnt upgrading chamber 58, and the below in furnace shell 32 is provided with bow-shaped support 59; It comprises furnace shell 32, refractory materials masonry 31, dry chamber 60, blast cap 61, airduct 62, bellows 63, dry feed channel 64 and the air channel, bottom 65 of putting out of putting out the dry coke quenching auxiliary 6 of coal heat decomposition stove; In furnace shell 32, be provided with refractory materials masonry 31, in refractory materials masonry 31, be provided with the dry chamber 60 of putting out, the centre that dry lower end of putting out chamber 60 is provided with four airducts 62, four airducts 62 is connected with blast cap 61, cap 61 connections follow the wind in one end of airduct 62, follow the wind case 63 of the other end connects, bellows 63 peripheries are provided with the dry feed channel 64 of putting out, and a side in air channel, bottom 65 connects with the dry chamber 60 of putting out, and the opposite side case 63 that follows the wind connects; The pushing away discharging device for coke 7 it comprise motor 66, first stage decelerator 67, the first shaft coupling 68, two stage reducer 69, the second shaft coupling 70, clutch shaft bearing 71, housing 72, screw rod 73, opening for feed 74, the second bearing 75, rotation coke discharging device 76 and discharge port 77 of coal heat decomposition stove; Motor 66 is connected with first stage decelerator 67, first stage decelerator 67 is connected with two stage reducer 69 by the first shaft coupling 68, two stage reducer 69 is connected with the second shaft coupling 70, one end of screw rod 73 is connected with clutch shaft bearing 71, the other end is connected with the second bearing 75, is provided with screw rod 73 in housing 72, is provided with opening for feed 74 on housing 72, housing 72 lower ends are provided with rotation coke discharging device 76, and the lower end of rotation coke discharging device 76 is provided with discharge port 77.The interior top of coal divider 12 is provided with funnel plate 11, and the below of funnel plate 11 is provided with divider 13.Tremie pipe 15 tops are provided with 45 ° of elbows, and the lower end of tremie pipe 15 is connected with straight tube 17 by moving casing 16.Tremie pipe 15 is set to 2~10.Feeding port 23 is integral cast steel part, and centre is provided with hydraucone, and bell-mouthed upper end is provided with venting hole.Epicone part 24 is integral cast steel part, and inside is cone-shaped body, and the lower end of cone-shaped body is provided with discharge gate.Lower cone part 25 is integral cast steel part, and centre is provided with hydraucone.Preheater feed opening 26 is integral cast steel part, and centre is provided with hydraucone, and hydraucone is connected with de-plate 27.Exterior combustion chamber 46 is comprised of 6 groups 12 outer quirks 56 on body of heater 32.Inner combustion chamber 48 is comprised of 8 internal-quirks 55 and centre channel 57.

Claims (10)

1. a coal heat decomposition stove, it comprises: the coal primary heater unit that enters device for coal, coal heat decomposition stove of coal heat decomposition stove, the pre-hot coal of coal heat decomposition stove enter the discharging device for coke that pushes away of the burnt modifying apparatus of the heating unit of the coal of furnace apparatus, coal heat decomposition stove, coal heat decomposition stove, the dry coke quenching auxiliary of coal heat decomposition stove and coal heat decomposition stove; It is characterized in that: the entering device for coal it comprises spiral deliver coal device, hopper, rotation stoker, funnel plate, coal divider, divider, sleeve pipe, tremie pipe, moving casing and straight tube of coal heat decomposition stove; The deliver coal below of device of spiral is provided with hopper, and hopper is connected with rotation stoker by flange, and rotation stoker is connected with coal divider, and coal divider is connected with tremie pipe by sleeve pipe; The coal primary heater unit of coal heat decomposition stove, it comprises cover plate, cylindrical shell, closing cap, closing cap base plate, dividing plate, feeding port, epicone part, lower cone part, preheater feed opening, de-plate, coal preheater, center quirk, annular high-temp waste gas road, refractory materials masonry and furnace shell; The center of furnace shell is provided with center quirk, and center quirk cylindrical is provided with 8 coal preheaters, and the cylindrical of coal preheater is provided with annular high-temp waste gas road, and annular high-temp waste gas road is outside equipped with refractory materials masonry, and refractory materials masonry is outside equipped with furnace shell; The top of cylindrical shell is connected with cover plate, below is connected with dividing plate, is provided with closing cap in cylindrical shell, and closing cap is connected with closing cap base plate, feeding port is arranged in the sleeve of closing cap base plate bottom, feeding port is connected with epicone part, and epicone part is connected with lower cone part, by that analogy, totally six layers of epicone parts, totally five layers of lower cone parts, last bottom is that epicone part is connected with preheater feed opening, preheater feed opening is connected with de-plate; The pre-hot coal of coal heat decomposition stove enters furnace apparatus, and it comprises furnace shell, refractory materials masonry, high charge level instrumentation hole, low level gage gaging hole, vision slit, raw gas pressure measurement thermometer hole, insulation shell, lagging material, feed opening, material level control storehouse, cement block, raw gas derivation passage, raw gas water-sealed valve and coking chamber top; The inside of furnace shell is provided with refractory materials masonry, on refractory materials masonry, be provided with feed opening, feed opening is controlled storehouse with material level and is connected, material level is controlled on storehouse and is provided with high charge level instrumentation hole, low level gage gaging hole, vision slit, on furnace shell, be provided with raw gas pressure measurement thermometer hole, material level is controlled below, storehouse and is provided with insulation shell, cement block, raw gas derivation passage, and the side that raw gas is derived passage is connected with coking chamber top, and the opposite side that raw gas is derived passage is connected with raw gas water-sealed valve; The heating unit of the coal of coal heat decomposition stove, it comprises body of heater, refractory materials masonry, short covering tracheae, exterior combustion chamber, coking chamber, inner combustion chamber, inner combustion chamber's short covering air flue, rapid heater, internal-quirk afterburning tracheae, combustion gas bustle pipe, air bustle pipe, waste gas bustle pipe, internal-quirk, outer quirk and centre channel; In body of heater, be provided with refractory materials masonry, the upper end of body of heater is provided with two sections of short covering tracheaes, the inner upper end of body of heater is provided with two sections of exterior combustion chambers, lower end is provided with one section of exterior combustion chamber, two sections of exterior combustion chamber inside are provided with coking chamber, and the inner side of coking chamber is provided with inner combustion chamber, are provided with short covering air flue in inner combustion chamber's in inner combustion chamber, short covering air flue in inner combustion chamber's is connected with internal-quirk short covering gas bustle pipe, and body of heater is respectively arranged with two sections of rapid heaters and one section of rapid heater up and down; The lower end of body of heater is provided with one section of short covering tracheae, one section of short covering tracheae is connected through refractory materials masonry and one section of exterior combustion chamber, in the upper end of one section of exterior combustion chamber, be provided with the first combustion gas bustle pipe, the first air bustle pipe, the first waste gas bustle pipe, lower end is provided with the second combustion gas bustle pipe, the second air bustle pipe, the second waste gas bustle pipe, in the bottom of body of heater, be provided with internal-quirk afterburning tracheae and internal-quirk short covering gas bustle pipe, the other end of internal-quirk afterburning tracheae is communicated with inner combustion chamber; It comprises furnace shell, refractory materials masonry, burnt upgrading chamber, bow-shaped support the burnt modifying apparatus of coal heat decomposition stove; In furnace shell, be provided with refractory materials masonry, the inner side of refractory materials masonry is provided with burnt upgrading chamber, and the below in furnace shell is provided with bow-shaped support; It comprises furnace shell, refractory materials masonry, dry chamber, blast cap, airduct, bellows, dry feed channel and the air channel, bottom of putting out of putting out the dry coke quenching auxiliary of coal heat decomposition stove; In furnace shell, be provided with refractory materials masonry, in refractory materials masonry, be provided with the dry chamber of putting out, the centre that dry lower end of putting out chamber is provided with four airducts, four airducts is connected with blast cap, cap connection follows the wind in one end of airduct, the other end case that follows the wind connects, bellows periphery is provided with the dry feed channel of putting out, and a side in air channel, bottom connects with the dry chamber of putting out, and the opposite side case that follows the wind connects; The pushing away discharging device for coke it comprise motor, first stage decelerator, the first shaft coupling, two stage reducer, the second shaft coupling, clutch shaft bearing, housing, screw rod, opening for feed, the second bearing, rotation coke discharging device and discharge port of coal heat decomposition stove; Motor is connected with first stage decelerator, first stage decelerator is connected with two stage reducer by the first shaft coupling, two stage reducer is connected with the second shaft coupling, one end of screw rod is connected with clutch shaft bearing, the other end is connected with the second bearing, is provided with screw rod in housing, is provided with opening for feed on housing, housing lower end is provided with rotation coke discharging device, and the lower end of rotation coke discharging device is provided with discharge port.
2. a kind of coal heat decomposition stove according to claim 1, is characterized in that: in coal divider, top is provided with funnel plate, and the below of funnel plate is provided with divider.
3. a kind of coal heat decomposition stove according to claim 1, is characterized in that: tremie pipe top is provided with 45 ° of elbows, and the lower end of tremie pipe is connected with straight tube by moving casing.
4. a kind of coal heat decomposition stove according to claim 1, is characterized in that: tremie pipe is 2~10.
5. a kind of coal heat decomposition stove according to claim 1, is characterized in that: feeding port is integral cast steel part, and centre is provided with hydraucone, and bell-mouthed upper end is provided with venting hole.
6. a kind of coal heat decomposition stove according to claim 1, is characterized in that: epicone part is integral cast steel part, and inside is cone-shaped body, and the lower end of cone-shaped body is provided with discharge gate.
7. a kind of coal heat decomposition stove according to claim 1, is characterized in that: lower cone part is integral cast steel part, and centre is provided with hydraucone.
8. a kind of coal heat decomposition stove according to claim 1, is characterized in that: preheater feed opening is integral cast steel part, and centre is provided with hydraucone, and hydraucone is connected with de-plate.
9. a kind of coal heat decomposition stove according to claim 1, is characterized in that: exterior combustion chamber is comprised of 6 groups of 12 outer quirks on body of heater.
10. a kind of coal heat decomposition stove according to claim 1, is characterized in that: inner combustion chamber is comprised of 8 internal-quirks and centre channel.
CN201110453464.4A 2011-12-21 2011-12-21 Coal pyrolysis furnace CN102994104B (en)

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