CN202786126U - Hot waste gas as-fired coal preheating and active coke regenerating device - Google Patents
Hot waste gas as-fired coal preheating and active coke regenerating device Download PDFInfo
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- CN202786126U CN202786126U CN2012203871513U CN201220387151U CN202786126U CN 202786126 U CN202786126 U CN 202786126U CN 2012203871513 U CN2012203871513 U CN 2012203871513U CN 201220387151 U CN201220387151 U CN 201220387151U CN 202786126 U CN202786126 U CN 202786126U
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- Y—GENERAL 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
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Abstract
The utility model discloses a hot waste gas as-fired coal preheating and active coke regenerating device which comprises a preheating device and an active coke regenerator, wherein the preheating device comprises a furnace body, a waste gas chamber, at least more than one waste gas preheating channel and preheaters; the furnace body is divided into an inner wall, a middle wall and an outer wall; the waste gas chamber is formed by the inner wall; a waste gas collection loop is formed between the middle wall and the outer wall; a main waste gas outlet is arranged in the waste gas collection loop; the waste gas preheating channel passes through the inner wall and the middle wall to communicate the waste gas chamber with the waste gas collection loop, and the space between the inner wall and the middle wall is divided into a plurality of preheating chambers; the preheaters are respectively arranged in the preheating chambers; the bottom of the waste gas chamber is provided with a hot waste gas inlet channel; the active coke regenerator mainly comprises a hot waste gas evaporation pipe network; the waste gas evaporation pipe network forms an independent loop arranged in a shell cavity of the regenerator, the bottom of the waste gas evaporation pipe network is provided with a hot waste gas inlet pipe, and the top of the waste gas evaporation pipe network is provided with a hot waste gas outlet pipe; and the main waste gas outlet is communicated with the hot waste gas inlet pipe through a pipeline.
Description
Technical field
The utility model relates to a kind of the enter preheating of stove coal and active coke regeneration device, and particularly a kind of hot waste gas enters the preheating of stove coal and active coke regeneration device.
Background technology
Coal heat decomposition stove in the market (pit kiln) mostly adopts intermittent type coking, enter the stove coal proportioning, dewater, advance coal, preheating, charing, burnt upgrading, dried each processing step such as put out is relatively independent, can not produce continuously, production efficiency is low; In addition, the raw gas that produces in the pyrolysis of coal process contains a lot of useful compositions, such as H
2S, HCH etc. sour gas, NH
3The organism such as alkaline gas, tar class, benzene class, naphthalene class, washing oil class do not have the complete complete technique that raw gas derivation, reclaiming clean are used.
This impel the inventor to explore to create the complete Continuous coking of a cover and to raw gas derive, the reclaiming clean complete technique of recycle in addition.
Summary of the invention
The utility model provides a kind of hot waste gas to enter the preheating of stove coal and active coke regeneration device, this device utilizes first the waste gas after the burning to carry out preheating to entering the stove coal first, the own waste heat of waste gas after the recycling preheating evaporates heating to the saturated active coke in the raw gas reclaiming clean process, both reached the own waste heat of waste gas itself had been utilized, do not need again to increase extra power consumption device, save the coking cost.
Realize that the technical scheme that above-mentioned purpose is taked is:
A kind of hot waste gas enters the preheating of stove coal and active coke regeneration device, comprises primary heater unit, activated coke revivifier; Described coal primary heater unit is installed in into the device for coal below, and is positioned at the top of coal heat decomposition stove, includes body of heater, exhaust air chamber, at least one above heating by the exhaust gases passage, preheater; That body of heater is divided into is interior, in, outer three layers of body of wall, internal layer body of wall form exhaust air chamber, form waste gas between middle level body of wall and the outer body of wall and assemble circuit, in waste gas gathering circuit, be provided with the waste gas primary outlet, that the heating by the exhaust gases passage passes is interior, the middle level body of wall is assembled circuit with exhaust air chamber and waste gas and is communicated with, and will being separated into several preheating chambers between internal layer body of wall and the middle level body of wall, preheater places respectively each preheating chamber; The bottom of exhaust air chamber is provided with the hot waste gas admission passage, hot waste gas after the burning enters from the hot waste gas admission passage, entering waste gas by the heating by the exhaust gases passage assembles in the circuit, assemble at last the waste gas primary outlet discharge of circuit from waste gas, the hot waste gas after the burning can carry out thermal conduction to heating by the exhaust gases passage, internal layer body of wall, internal layer body of wall in discharge process; Described activated coke revivifier comprises revivifier housing, hot waste gas evaporation pipe network, unsaturated activated coke recovery bin, the revivifier housing is a cavity container, the revivifier case top is provided with saturated active coke and enters gate valve, the bottom is provided with unsaturated activated coke discharging gate valve, unsaturated activated coke discharging gate valve below is provided with unsaturated activated coke recovery bin, also is provided with evaporation exhaust of oil pipe on the revivifier housing; Waste gas evaporation pipe network becomes independent loop to be arranged in the revivifier housing chamber, and the bottom of waste gas evaporation pipe network is provided with hot waste gas and enters pipe, and the top is provided with the hot waste gas delivery pipe; The hot waste gas that the waste gas primary outlet that the waste gas of described primary heater unit is assembled circuit evaporates the bottom of pipe network by pipeline and the hot waste gas of activated coke revivifier enters pipe and communicates.
Preferably, described waste gas evaporation pipe network middle part is provided with the waste gas circulation pipeline, the waste gas circulation pipeline stretch out the revivifier housing outer and the hot waste gas blower fan link.
Preferably, also comprise tubular heat exchanger, described tubular heat exchanger comprises heat exchange housing, metal heat-exchange pipe network, hot waste gas admission passage, heat exchange waste gas exhaust channel, form waste gas heat radiation chamber in the heat exchange housing, hot waste gas admission passage and heat exchange waste gas exhaust channel are separately positioned on the heat exchange housing and with waste gas heat radiation chamber and communicate, the metal heat-exchange pipe network places waste gas heat radiation chamber, the metal heat-exchange pipe network comprises that air enters pipe and Bas Discharged pipe, and air enters pipe and the Bas Discharged pipe stretches out respectively the heat exchange hull outside; The waste gas primary outlet that the waste gas of described primary heater unit is assembled circuit communicates by pipeline with the hot waste gas admission passage of tubular heat exchanger, and the heat exchange waste gas discharge main channel of tubular heat exchanger enters pipe by pipeline with the hot waste gas of the hot waste gas generating tube sieve bottom of activated coke revivifier and communicates.
Characteristics of the present utility model are to utilize first the waste gas after the burning to carry out preheating to entering the stove coal first, the own waste heat of waste gas after the recycling preheating evaporates heating to the saturated active coke in the raw gas reclaiming clean process, both reached the own waste heat of waste gas itself had been utilized, do not need again to increase extra power consumption device, save the coking cost.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is that the related stove coal dewatering device that enters of the utility model is assembled synoptic diagram;
Fig. 2 is the related waste gas water trap synoptic diagram of the utility model (A place enlarged view among Fig. 1);
Fig. 3 is the related coal fine filter of the utility model one embodiment schematic top plan view;
Fig. 4 is another embodiment schematic top plan view of the related coal fine filter of the utility model;
Fig. 5 is the device such as the preheating in the utility model and enter the stove coal and advance device for coal assembling cross-sectional schematic;
Fig. 6 is C place enlarged view among Fig. 5;
Fig. 7 is the preheater sectional view that enters in the stove coal primary heater unit of the present utility model;
Fig. 8 is a-a place sectional view among Fig. 6;
Fig. 9 be the utility model related enter stove coal refrigerating unit synoptic diagram;
Figure 10 is b-b place sectional view among Fig. 9;
Figure 11 is the related electrical connection synoptic diagram of the utility model;
Figure 12 is enter device and the activated coke revivifier connection diagram such as the preheating of stove coal of the present utility model.
Embodiment
A kind of hot waste gas of the utility model enters the specific embodiment of the preheating of stove coal and active coke regeneration device and mainly introduces in detail in following third part, the 5th part.
Second section enters the stove coal dewatering
Pit kiln in the market mostly adopts intermittent type coking, enters the stove coal charge and is wet coal, so power consumption has increased the cost of coking, enters dewatering of stove coal to what enter this coal heat decomposition stove in advance, plays energy-saving and cost-reducing effect.
As shown in Figure 1: describedly enter stove coal dewatering device 1 and comprise dehydration support body 10, bucket elevator 11, waste gas water trap 12, coal fine filter 13, feed bin 14, fly-ash separator 15, chimney 16, enter stove coal transfer roller 17.
Such as Fig. 1, shown in Figure 2: waste gas water trap 12 comprises dehydrator shell 121, the hot waste gas master enters pipe 122, dehydration waste gas master discharges tracheae 123, feeder 124, waste gas radiator element 125, above dehydrator shell 121, be provided with feeder 124, below dehydrator shell 121 inner feeders 124, be provided with at least one group of waste gas radiator element 125, the inside of waste gas radiator element 125 is provided with hot waste gas admission passage 1251, dehydration waste gas exhaust channel 1252, hot waste gas admission passage 1251 and dehydration waste gas exhaust channel 1252 enter pipe 122 with the hot waste gas master respectively, dehydration waste gas master discharges tracheae 123 and communicates, hot waste gas admission passage 1251 and dehydration waste gas exhaust channel 1252 are in the inside of waste gas radiator element 125 up and down to be arranged, and is beneficial to the drying and dehydrating into the stove coal.
As shown in Figure 2: feeder 124 includes hopper 1241, pan feeding vibratory screening apparatus 1242, blanking channel 1243, blanking vibratory screening apparatus 1244, pan feeding vibratory screening apparatus 1242 is set in the material bin 1241, scattered by the middle part and be provided with a plurality of blanking channels 1243 in material bin 1241 belows, below blanking channel 1243, be provided with again blanking vibratory screening apparatus 1244, blanking vibratory screening apparatus 1244 belows arrange waste gas radiator element 125, and the purpose of design is more even in order to allow the stove coal distribute above waste gas radiator element 125 like this.
As shown in Figure 2: the three groups of arrangements in 125 one-tenth upper, middle and lower of waste gas radiator element, waste gas radiator element 125 profiles are made acute triangle up, shift to install between upper group of waste gas radiator element 125 and middle group of waste gas radiator element 125, waste gas radiator element 125 namely in the group just in time is arranged between the two adjacent waste gas radiator element 125 in the group, in like manner, lower group of waste gas radiator element 125 just in time is arranged between the two adjacent waste gas radiator element 125 in middle group, and purpose is for the drying area that is added to the stove coal, is beneficial to into coal and disperses landing.
Such as Fig. 1, Fig. 2, shown in Figure 3: that coal bunker 14 is set below waste gas radiator element 125, put at coal bunker 14 and to be provided with coal fine filter 13, our image is called the coal dust respiratory organ, coal fine filter 13 mainly comprises filter body 131, enter siphunculus 132 in the off-air, dust funnel 133, discharge siphunculus 134 in the off-air, off-air is discharged siphunculus 135 outward, enter siphunculus 132 in the off-air that leads to the top from the bottom filter body 131 peripheral being provided with, be provided with dust funnel 133 in filter body inside, dust funnel 133 leads to coal bunker 14, above dust funnel 133, be provided with and discharge siphunculus 134 in the off-air, the entrance 1321 that enters siphunculus 132 in the off-air is higher than the entrance 1341 of discharging siphunculus 134 in the off-air, discharging siphunculus 134 in the off-air is arranged on the strainer internal head cover 137, off-air is discharged siphunculus 135 outward and is arranged on the outer top cover 138 of strainer, is provided with steel fiber filtering net 136 outside strainer internal head cover 137 and strainer between the top cover 138.
As shown in Figure 3: enter siphunculus 132 in the off-air and be arranged in the filter body 131, enter 134 one-tenth vertical angles of siphunculus 132 and off-air interior discharge siphunculus in the off-air at filter body 131 interior formation cyclone structures.
As shown in Figure 1: fly-ash separator 15 connects dehydration waste gas master and discharges tracheae 123, fly-ash separator 15 is existing dedusting technologies, fly-ash separator 15 comprises shell of dust remover 151, dust settling chamber 152, dehydration waste gas master discharges tracheae 123 leads to dust settling chamber 152, dust settling chamber 152 communicates with chimney 16 by induced draft fan 18 again, dust settling chamber 152 belows arrange flyash delivery pipe 153, described dust settling chamber 152 can be wet dedusting, also can adopt dry-method bag-type dust collecting, introduce wet dedusting herein, be provided with sprinkler head 154 above shell of dust remover 151 interior dust settling chambers, dehydration waste gas master discharges tracheae 123 and submerges in the water in the dust settling chamber 152.
Such as Fig. 1; shown in Figure 2: hot waste gas enters the waste gas admission passage 1251 that tracheae 122 enters waste gas radiator element 125 inside by the hot waste gas master; dehydration waste gas exhaust channel 1252 by waste gas radiator element 125 inside enters dehydration waste gas master and discharges tracheae 123 again; discharge from chimney 16 after cleaning through the water layer in the dust settling chamber 152 again; flyash is stayed in the water layer and is regularly discharged by flyash delivery pipe 153 in the hot waste gas; both played hot waste gas had been purified; can reduce the hot waste gas exhaust temperature again; be beneficial to air draft; protection induced draft fan 18; reach the purpose of clean environment protection emission, the current country of response advocates the requirement of waste gas environment protection emission.
As shown in Figure 1 and Figure 2: the hot waste gas after the burning enters tracheae 122 typical temperatures at 700 ℃～800 ℃ entering the hot waste gas master, utilize the waste heat of hot waste gas self that waste gas radiator element 125 is heated, can lower the temperature to the hot waste gas after the burning, thereby the stove coal that enters through waste gas radiator element 125 is dewatered, can allow again the water ratio of stove coal below 1%, reach the effective utilization to the hot waste gas after the burning, save energy consumption.
As shown in Figure 1 and Figure 2: the discharge bucket 111 of bucket elevator 11 is arranged on material bin 1241 tops, enters the bottom that stove coal transfer roller 17 is arranged on coal bunker 14.
As shown in figure 11: this example also comprises industry control center 90,90 pairs at industry control center with it directly the induced draft fans 18 of electrical connection, enter stove coal transfer roller 17 and bucket elevator 11 is controlled,
This example also includes stove coal electric controller 901, entering 901 pairs of stove coal electric controllers enters stove coal transfer roller 17, induced draft fan 18 and bucket elevator 11 and automatically controls respectively, enter stove coal electric controller 901 and link with upper industry control center 90 again, realize entering the automatization of stove coal dewatering.Certainly from electric control theory, enter stove coal transfer roller 17, induced draft fan 18 and bucket elevator 11 in this example and also can directly be subjected to 90 controls of industry control center, so set into the restriction that stove coal electric controller 901 does not consist of this routine protection domain herein.
This example enters stove coal dewatering Method And Principle:
1, industry control center 90 feeds stove coal electric controller 901 and spreads out of into stove coal transfer roller 17, induced draft fan 18 and bucket elevator 11 initiating signals, send in the dehydrator shell 121 top material bins 1241 by the stove coal that enters that bucket elevator 11 is finished proportioning first, by pan feeding vibratory screening apparatus 1242, blanking channel 1243, blanking vibratory screening apparatus 1244, waste gas radiator element 125 falls into coal bunker 14 at last;
2, hot waste gas is entered in the waste gas admission passage 1251 that tracheae 122 passes into waste gas radiator element 125 inside by the hot waste gas master, dehydration waste gas exhaust channel 1252 by waste gas radiator element 125 inside enters dehydration waste gas master and discharges tracheae 123 again, enters water layer in the dust settling chamber 152 by induced draft fan 18 again and discharges from chimney 16 after cleaning;
3, meanwhile, enter the stove coal fall into through waste gas radiator element 125 coal bunker 14 processes also can be to dehydrator shell 121 chambeies in and air in coal bunker 14 storehouses heat, heated air utilizes the heat buoyancy of self to enter in the off-air of coal fine filter 13 and enters siphunculus 132 (such as Fig. 3), be higher than the entrance 1341 of discharging siphunculus 134 in the off-air owing to enter the entrance 1321 of siphunculus 132 in the off-air, hot off-air forms whirlwind from top to bottom and enters discharge siphunculus 134 in the off-air, discharge siphunculus 135 dischargings outward finally by crossing steel fiber filtering net 136 and off-air, thereby the dust in the off-air because intercepting the dust funnel 133 that falls into the below, steel fiber filtering net 136 enters coal bunker 14.
Third part enters the stove coal and advances coal, preheating, adjusting, cooling
Entering the stove coal and generally can be down to normal temperature through temperature after carrying after the dehydration, particularly winter temperature is lower, temperature may be lower, but but wish during coking to enter stove coal temperature remain between 200 ℃ to 300 ℃ more suitable, so need to before entering the coking chamber of coal heat decomposition stove, carry out preheating to entering the stove coal.
First segment enters the stove coal and advances coal
As shown in Figure 5: advance that device for coal 2 mainly includes stove cuttings conveyer 21, enters stove coal bunker 22, coal dust divides to device 25, coal dust distribution chamber 26, enters stove coal bunker tremie pipe 29, coal fine filter 23.
As shown in Figure 5, enter stove cuttings conveyer 21 and adopt screw conveying structure, be arranged on into stove coal bunker 22 tops, entering the middle coal dust that projection is set in stove coal bunker 22 bottoms divides to device 25, to enter stove coal bunker 22 bottoms and be divided into several coal dust distribution chambers 26, this example arranges 8 coal dust distribution chambers 26 altogether, is connected to respectively stove coal bunker tremie pipe 29 in coal dust distribution chamber 26 bottoms, enters stove coal bunker tremie pipe 29 blanking control valve 24 is set.
Such as Fig. 5, shown in Figure 4, coal fine filter 23 (substantially just the same with the coal fine filter structure of introducing in this routine second section) is arranged on the top into stove coal bunker 22, mainly comprise filter body 231, off-air enters siphunculus 232 outward, dust funnel 233, discharge siphunculus 234 in the off-air, off-air is discharged siphunculus 235 outward, off-air enters siphunculus 232 outward and is arranged on filter body 231 neighborings, be provided with dust funnel 233 in filter body 231 inside, dust funnel 233 leads to into stove coal bunker 22, above dust funnel 233, be provided with and discharge siphunculus 234 in the off-air, the entrance that off-air enters siphunculus 232 outward is higher than discharge siphunculus 234 entrances in the off-air, off-air enters siphunculus 232 outward and forms cyclone structures with the interior 234 one-tenth vertical angles of siphunculus of discharging of off-air at filter body 231, discharging siphunculus 234 in the off-air is arranged on the strainer internal head cover 237, off-air is discharged siphunculus 235 outward and is arranged on the outer top cover 238 of strainer, is provided with steel fiber filtering net 236 outside strainer internal head cover 237 and strainer between the top cover 238.
In addition; as shown in figure 11; this example also comprises into device for coal electric controller 902; advance that 902 pairs of coal electric controllers enter stove cuttings conveyer 21 and blanking control valve 24 is controlled; advancing device for coal electric controller 902 links with upper industry control center 90 again; certainly from electric control theory, enter stove cuttings conveyer 21 and blanking control valve 24 in this example and also can directly be subjected to industry control center 90 control, do not consist of restriction to this routine protection domain so arrange device for coal electric controller 902 herein.
Second section enters the preheating of stove coal
Such as Fig. 5, shown in Figure 6: primary heater unit 39 places into the below of device for coal 2, and primary heater unit 39 is positioned at the top of coal heat decomposition stove 9.
Such as Fig. 6, Fig. 7, shown in Figure 8, primary heater unit 39 mainly includes body of heater 91, exhaust air chamber 391, at least one above heating by the exhaust gases passage 392, preheater 393, in body of heater 91 is divided into, in, outer three layers of body of wall 913,912,911 (shown in Figure 8), internal layer body of wall 913 forms 911 formation waste gas of exhaust air chamber 391 middle level bodies of wall 912 and outer body of wall and assembles circuit 395, assemble circuit 395 at waste gas and be provided with waste gas primary outlet 3951, in heating by the exhaust gases passage 392 passes, middle level body of wall 913,912 assemble circuit 395 with exhaust air chamber 391 and waste gas is communicated with, and will be separated into several preheating chambers 394 (as shown in Figure 8 between internal layer body of wall 913 and the middle level body of wall 912, this example has 8 heating by the exhaust gases passages 392 will be separated out 8 preheating chambers 394), preheater 393 places respectively each preheating chamber 394.
Such as Fig. 7, shown in Figure 8: 393 one-tenth round shapes of preheater adopt steel, preheater 393 comprises that cylindrical shell 3931, taper divide to device 3932, open wide funnel 3933, pre-hot coal blanking road 3934, taper divides to device 3932 and unlimited funnel 3933 arranges on cylindrical shell 3931 successively from top to bottom in groups, is beneficial to entering the even preheating of coal stove.
Such as Fig. 8, shown in Figure 6, body of heater 91 adopts circle to be beneficial to the space priorization, reserves certain space between preheater 393 and the preheating chamber 394, utilizes the warm air in the exhaust air chamber 391 that preheater 393 is heated, and homogeneous heating is stable.
As shown in Figure 6, be provided with at body of heater 91 and lead to preheating chamber thermometer hole 3941, preheating chamber thermometer 3942 is arranged on the temperature variation that 3941 outlets of preheating chamber thermometer hole are used for monitoring preheating chamber 394, be provided with at body of heater 91 and lead to exhaust air chamber thermometer hole 3914, exhaust air chamber thermometer 3915 is arranged on the temperature variation that 3914 outlets of waste gas thermometer hole are used for monitoring exhaust air chamber 391, in addition, at the top of exhaust air chamber 391 upper observation hole 3912 is set, lower observation hole 3913 is set so that the technician observes exhaust air chamber 391 in the bottom of exhaust air chamber 391, the working condition of coal heat decomposition stove 9 bottoms.
Such as Fig. 5, shown in Figure 6, preheating chamber 394 is provided with preheating off-air outlet duct 396, the off-air that preheating off-air outlet duct 396 leads to coal fine filter 23 enters siphunculus 232 outward, the hot off-air of dust-laden of preheating chamber 394 tops is entered off-air enter outward in the siphunculus 232, the stove coal that enters that is conducive in the coal stove storehouse 22 drops into preheating in the preheating chamber 394 smoothly.
Such as Fig. 5, Fig. 6, shown in Figure 8, the bottom of exhaust air chamber 391 is provided with hot waste gas admission passage 3911, hot waste gas after the burning enters from hot waste gas admission passage 3911, entering waste gas by heating by the exhaust gases passage 392 assembles in the circuit 395, assemble at last waste gas primary outlet 3951 discharges of circuit 395 from waste gas, hot waste gas after the burning can be to heating by the exhaust gases passage 392 in discharge process, internal layer body of wall 913, internal layer body of wall 912 carries out thermal conduction, the unique texture design of this primary heater unit 39, be to utilize the hot waste gas of from exhaust air chamber 391, discharging after burning that preheating chamber 394 Airs are heated, the stove coal that enters that reaches falling into preheater 393 carries out preheating, can lower the temperature to the hot waste gas of from exhaust air chamber 391, discharging after burning again simultaneously, do not need to consume the extra energy, reach self the UTILIZATION OF VESIDUAL HEAT IN purpose to the hot waste gas after the burning.
In addition, as shown in figure 11, this example comprises that also preheating temperature monitor 903 is used for the temperature data of monitoring preheating chamber thermometer 3942 and exhaust air chamber thermometer 3915.Preheating temperature monitor 903 links with upper industry control center 90 again; certainly from electric control theory; preheating chamber thermometer 3942 and exhaust air chamber thermometer 3915 also can directly be subjected to industry control center 90 monitoring in this example, do not consist of restriction to this routine protection domain so preheating temperature monitor 903 is set herein.
The stove coal that enters after the 3rd joint preheating is regulated
Such as Fig. 5, shown in Figure 6, enter stove coal surge bunker 3, entering stove coal surge bunker 3 is arranged on and is positioned at preheater 393 bottoms on the body of heater 91, the periphery of exhaust air chamber 391 enters stove coal surge bunker 3 and comprises coal pocket 31, the upper and lower material level meter 32 of coal bunker, 33, coal pocket thermometer 34, coal pocket blanking road 35, coal pocket baiting valve 36.
Such as Fig. 5, shown in Figure 6, coal pocket 31 tops connect preheater 393 bottoms, the upper and lower material level meter 32 of coal bunker, 33 is located at respectively top and the bottom of coal pocket 31, coal pocket thermometer 34 is positioned at coal pocket 31 middle parts, coal pocket blanking road 35 is connected on the bottom of coal pocket 31 by coal pocket baiting valve 36, and coal pocket blanking road 35 leads to coal heat decomposition stove coking chamber 61 (shown in Figure 9).
In addition; as shown in figure 11: this example also includes the stove coal and regulates electric controller 904 for gathering coal bunker; lower level gage 32; 33 material level signal; the temperature signal of coal pocket thermometer 34; realize automatically control with the switching to coal pocket baiting valve 36; entering stove coal adjusting electric controller 904 links with upper industry control center 90 again; certainly from electric control theory; gather on the coal bunker in this example; lower level gage 32; 33 material level signal; the temperature signal of coal pocket thermometer 34 is gathered by also can directly at industry control center 90; coal pocket baiting valve 36 opens and closes and directly is subjected to 90 controls of industry control center, regulates electric controller 904 and does not consist of restriction to this routine protection domain so set into the stove coal herein.
This example enters stove coal control method:
1, the stove coal that enters after the preheating is injected coal pocket 31 and stores away in advance first, when needs to coking chamber 61 in during coal, industry control center 90 is opened coal pocket baiting valves 36 and enter the stove coal in coking chamber 61;
2, when needs stop coal to coking chamber, coal pocket baiting valve 36 is closed at industry control center 90, stops to add the stove coal in coking chamber 61;
3, detect coal in the coal pocket 31 when not enough when level gage under the coal bunker 33, blanking control valve 24 is opened at industry control center 90, give coal in the coal pocket 31, when the coal that level gage on the coal bunker 32 detects in the coal pocket 31 is filled it up with, blanking control valve 24 is closed at industry control center 90, stop to coal pocket 31 coals, play the stove coal that enters that enters coking chamber 61 is regulated.
Such as Fig. 5, shown in Figure 6, coal pocket 31 tops also are provided with coal pocket hot air discharge passage 37, the off-air that coal pocket hot air discharge passage 37 leads to coal fine filter 23 enters siphunculus 232 outward, the dust-laden warm air of coal pocket 31 tops is entered off-air and is entered outward in the siphunculus 232, is beneficial in the coal pocket 31 smoothly coal
The stove coal that enters that the 4th joint advances before the coking chamber cools off
As shown in Figure 9, coal pocket blanking road 35 is to the coking chamber 61 notes coal of coal heat decomposition stove the time, because there is the raw gas that produces in a large amount of pyrolysis of coal processes in coking chamber 61 tops, the higher meeting of raw gas temperature is carried out thermal conduction to coal pocket blanking road 35 bodys and body of heater 91, cause the stove coal in coal pocket blanking road 35, to lump easily, obstruction is annotated coal in coking chamber 61, thereby need to cool off entering the stove coal.
Such as Fig. 9, shown in Figure 10, enter stove coal refrigerating unit 5 and comprise that air enters siphunculus 57, Bas Discharged siphunculus 51, air enters endless tube 56, Bas Discharged endless tube 52, air enters arm 54, Bas Discharged arm 53, cooling air channel 55, wherein, air enters siphunculus 57 and enters endless tube 56 with air, Bas Discharged siphunculus 51 communicates with Bas Discharged endless tube 52, air enters endless tube 56, Bas Discharged endless tube 52 be separately positioned on body of heater 91 around, air enters and is connected to respectively air on endless tube 56 and the Bas Discharged endless tube 52 and enters arm 54, Bas Discharged arm 53, its Air enters arm 54 and is connected on cooling air channel 55 belows, Bas Discharged arm 53 is connected on the top of cooling air channel 55, and coal pocket blanking road 35 passes from cooling air channel 55 and leads to coking chamber 61.
Such as Figure 10, shown in Figure 9, because this body of heater 91 is designed to annular, around being beneficial to coking chamber 61, the coal pocket 31 that is provided with 8 notes coals around it carries out even coal, so cooling air channel 55 is corresponding with the quantity in coal pocket blanking road 35 also to be 8, enter successively air the siphunculus 57 and enter endless tube 56 when air enters from air, air enters arm 54, cooling air channel 55, again from Bas Discharged arm 53, Bas Discharged endless tube 52, discharge in the Bas Discharged siphunculus 51, utilize in the cooling air channel 55 the stove coal that enters in the coal pocket blanking road 35 is cooled off, prevent that effectively the stove coal from luming in coal pocket blanking road 35, realize in coking chamber 61, annotating coal smoothly.
In addition, coal pocket blanking road 35 mainly is that the inboard that relies on coking chamber 61 is subjected to the heat affecting of raw gas larger, so the inner side-wall 351 in coal pocket blanking road 35 places cooling air channel 55, the outer side wall 352 in coal pocket blanking road 35 is exposed in the air, utilize natural air to cool off, reduce to blast the air quantity in the cooling air channel 55, thereby save energy consumption.
The 4th part enters stove pyrolysis of coal (charing heating, burnt upgrading, dry coke quenching)
First segment enters stove pyrolysis of coal charing heating
Enter to be heated in the coking chamber that the stove coal enters coal heat decomposition stove and carry out pyrolysis charring, the purified gas that the raw gas that produces in the sharp pyrolysis of coal process carries out after the reclaiming clean carries out combustion heating, and utilizes the waste gas after the burning to carry out the dried again combustion heating of generation high-temperature combustible gas body that puts out.
The burnt upgrading of second section
Because coal carries out the coke that pyrolysis forms afterwards in coking chamber, there is the inequality of being heated, the situation that coke briquette grain size is irregular, preferably provide certain temperature and time to coke, make between the coke and fully contact, mutually carry out heat transmission, this just need to carry out burnt upgrading, utilize the waste heat of high temperature combustible exhaust gas itself that insulation institute's heat requirement and temperature are provided, the high temperature combustible exhaust gas temperature that has particularly just entered just is fit to burnt upgrading between 1000 ℃～1100 ℃, make coke in burnt upgrading chamber, retain certain hour, fully contact between the coke briquette grain, carry out each other heat transmission, reach evenly purpose of coke button size.
The 3rd joint quirk bow
The laying of various pipelines when providing support, is provided to the internal combustion heating unit again in the effect of quirk bow.
The 4th joint dry coke quenching
Higher through the coke temperature behind the upgrading, generally all at 1000 ℃～1100 ℃, need to cool off to make things convenient for to high temperature coke and carry and storage, need to carry out dried putting out.
The 5th joint continuous coking apapratus
Comprehensively above-mentioned, the characteristics of this routine Continuous coking are, with pyrolysis of coal charing, upgrading, the dried process integration that puts out in the hot body of heater of same coal, so that charing, upgrading, dried putting out are able to continuous realization, it is low to have overcome the discontinuous production efficiency of existing intermittent type coking technology technique, how required the assorted plant area of equipment be large, the problem that human cost is high.
The comprehensive cyclic utilization of the 5th part, pyrolysis of coal gas
First segment raw gas take-up gear
The raw gas that produces in the pyrolysis of coal process contains a lot of useful compositions, such as H
2S, HCH etc. sour gas, NH
3The organism such as alkaline gas, tar class, benzene class, naphthalene class, washing oil class need to be derived in order to utilize raw gas
Second section raw gas condensing works
Higher from raw gas export mouth discharge raw gas temperature,, need to use the raw gas condensing works high temperature raw gas is cooled off changing antenatal the conveying for the ease of the high temperature raw gas.
The reclaiming clean of the 3rd joint raw gas
Raw gas after ammoniacal liquor sprays is transported to gas-liquid separation device together with the mixed solution of coal tar and ammoniacal liquor through effuser and carries out gas-liquid separation, contain multiple useful organic component such as carbolic oil, naphtalene oil, washing oil in the mixed solution after the gas-liquid separation, fear wet goods for other auxiliary product of industry refinement, coal gas after the gas-liquid separation is after the air cooling cooling, become purified gas after the dry back receiving apparatus purifies recovery, purified gas can store for burning.
The device that is used for the raw gas reclaiming clean mainly comprises activated coke dry method withdrawer, activated coke bucket elevator, activated coke revivifier, cut tower, oil gas air cooler.The cooling raw gas is through carrying out charcoal absorption in the activated coke dry method withdrawer, saturated gac falls into the saturated active coke storage silo, send into the activated coke revivifier through saturated activity charcoal bucket elevator and evaporate regeneration, unsaturated activated coke after evaporation falls into unsaturated activated coke recovery bin, again send in the activated coke dry method withdrawer through unsaturated activated coke bucket elevator and to enter absorption, so repeatedly carry out, be transported to combustion heater through the purified gas after the absorption by the purified gas output tube and burn.
As shown in figure 12, above-described activated coke revivifier 47 comprises revivifier housing 471, hot waste gas evaporation pipe network 472, unsaturated activated coke recovery bin 476, revivifier housing 471 is a cavity container, revivifier housing 471 tops are provided with saturated active coke and enter gate valve 475, the bottom is provided with unsaturated activated coke discharging gate valve 474, unsaturated activated coke discharging gate valve 474 belows are provided with unsaturated activated coke recovery bin 476, also are provided with evaporation exhaust of oil pipe 473 on the revivifier housing 471; 472 one-tenth independent loops of waste gas evaporation pipe network are arranged in revivifier housing 471 chambeies, the bottom of waste gas evaporation pipe network 472 is provided with hot waste gas and enters pipe 477, the top is provided with hot waste gas delivery pipe 479, in order to increase hot waste gas at the flow velocity of waste gas evaporation pipe network 472, be provided with waste gas circulation pipeline 478 at waste gas evaporation pipe network 472 middle parts, waste gas circulation pipeline 478 stretch out revivifier housing 471 outer and hot waste gas blower fan (figure does not look out) link.
The 4th joint raw gas is derived condensation and reclaiming clean and burning
Introduce the purified gas that raw gas is derived behind condensation and the reclaiming clean by first, second and third joint more than this chapter and be used for right the burning, the pyrolysis of coal that is mainly in the coking chamber of coal heat decomposition stove provides the source of holding, so first, second and third joint introduction of comprehensive the 5th part chapter 1 is derived condensation and reclaiming clean device and method with raw gas, and the content that enters stove pyrolysis of coal charing heating of chapter 4 first segment introduction draws a kind of coal heat decomposition stove raw gas derivation condensation and reclaiming clean and combustion unit and method.
The first segment raw gas purifies the purified gas burning after reclaiming
Raw gas is through after purifying recovery, the part purified gas be transported to this example above introduce enter combustion heater in the outer combustion gas heating unit described in the stove pyrolysis of coal charing part and the combustion heater in the internal combustion heating unit burns, provide thermal source to pyrolysis of coal.
Dried the putting out of waste gas after the burning of second section purified gas
Outside cmpletely burning in the combustion heater in the gas-operated thermal bath facility and the combustion heater in the internal combustion heating unit of purified gas, utilizing not cmpletely, combustion exhaust carries out the dried cooling of putting out to high temperature coke, generation water-gas can react when the moisture content in the combustion exhaust does not contact with high temperature coke cmpletely, take away again simultaneously remaining volatile combustible gases behind the high temperature coke upgrading, the final high-temp waste gas that contains the inflammable gas composition that forms, specifically see the introduction of above dry coke quenching chapters and sections, repeat no more here.
The burnt upgrading of high temperature combustible exhaust gas after dried the putting out of the 3rd joint
High temperature combustible exhaust gas temperature after dried the putting out can reach 1000 ℃～1100 ℃, and burnt upgrading just in time need to be incubated upgrading at this temperature section, specifically how to be incubated upgrading, specifically sees the introduction of above dry coke quenching chapters and sections to repeat no more here.
Again tonifying Qi burning of high temperature combustible exhaust gas after dried the putting out of the 4th joint.
The high temperature combustible exhaust gas is externally acting in STRENGTH ON COKE upgrading process, temperature can reduce, can drop to 900 ℃～1000 ℃, and the pyrolysis of coal charing is temperature required higher in the coking chamber, on average all at 1400 ℃～1500 ℃, so air carries out combustion heating to fill into for the first time for the high temperature combustible exhaust gas, because the coking chamber height is higher, and combustiblecomponents exists a certain amount of in the high temperature combustible exhaust gas, so need to increase at internal combustion heating unit middle part the 3rd combustion heater is arranged, the 4th combustion heater is to replenish the required heat of pyrolysis of coal, carry out again filling into the second time at last air on internal combustion heating unit top and carry out again abundant combustion heating by the high temperature combustible exhaust gas, both having reached to pyrolysis of coal provides outside the thermal source acting, can allow again the high temperature combustible exhaust gas fully burn, minimizing is to the pollution of atmospheric environment, specifically see the above narration that enters in the stove pyrolysis of coal charing, repeat no more here.
Hot waste gas after the 5th joint tonifying Qi burning enters the preheating of stove coal
Waste gas after the quenching waste gas heater burning of internal combustion heating unit is discharged in the exhaust air chamber, carries out preheating by the coal primary heater unit to entering the stove coal again.
The 6th joint afterburning air heating
Being transported to tubular heat exchanger through the waste gas after the preheating of coal preheater heats entering quenching waste gas heater Air, do not need extra thermal source to air heating, need not increase additional cost, both played the waste heat through the hot waste gas after the preheating of coal preheater had further been utilized, can give in the quenching waste gas heater again and fill into warm air, make that the high temperature combustible exhaust gas fully burns in the quenching waste gas heater.
As shown in figure 12, described tubular heat exchanger 40, comprise heat exchange housing 401, metal heat-exchange pipe network 403, hot waste gas admission passage 407, heat exchange waste gas exhaust channel 404, heat exchange housing 401 interior formation waste gas heat radiation chambeies 402, hot waste gas admission passage 407 and heat exchange waste gas exhaust channel 404 are separately positioned on the heat exchange housing 401 and with waste gas heat radiation chamber 402 and communicate, heat exchange waste gas exhaust channel 404 is discharged main channel 405 with heat exchange waste gas and is linked, metal heat-exchange pipe network 403 places waste gas heat radiation chamber 402, metal heat-exchange pipe network 403 comprises that air enters pipe and Bas Discharged pipe, and air enters pipe and the Bas Discharged pipe stretches out respectively heat exchange housing 401 outsides.
This routine afterburning air heating Method And Principle is: the master of internal combustion heating unit, waste gas after the secondary internal-quirk burning enters exhaust air chamber 391 from the bottom admission passage 3911 of exhaust air chamber 391 successively, enter the preheating of stove coal by 392 pairs in heating by the exhaust gases passage and enter waste gas gathering circuit 395 afterwards, assemble the waste gas primary outlet 3951 of circuit 395 discharges from waste gas, the temperature of this moment is generally all about 1000 ℃, enter into waste gas heat radiation chamber 402 by hot waste gas admission passage 407 again and carry out heat exchange with metal heat-exchange pipe network 403, the waste heat that had both played hot waste gas further utilizes, can heat the afterburning air again, promote the master of internal combustion heating unit, the high temperature combustible exhaust gas of secondary internal-quirk fully burns.
The 7th joint enters the stove coal dewatering
The hot waste gas process is to after the afterburning air heating, and temperature decreases, and generally can drop to below 800 ℃, and for the relatively high hot waste gas of such temperature, a part can be used for to entering the stove coal dewatering.
The 8th joint saturated active coke regeneration heating
The hot waste gas process is to after the afterburning air heating, and temperature decreases, and generally can drop to below 800 ℃, and for the relatively high hot waste gas of such temperature, another part can be used for to saturated active coke regeneration heating.
The reclaiming clean of comprehensive above third part content, the 5th part chapter 1 the 3rd joint raw gas, the 5th part chapter 2 the 6th joint afterburning air heating and In this Section draw a kind of hot waste gas and enter the preheating of stove coal and active coke regeneration device and method.
As shown in figure 12, hot waste gas enters the preheating of stove coal and active coke regeneration device, mainly comprises primary heater unit 39, and activated coke revivifier 47 also comprises tubular heat exchanger 40; The concrete structure of described primary heater unit 39 sees that the third part second section enters the content introduction of stove coal preheating; The concrete structure of described activated coke revivifier 47 is seen the content introduction of the reclaiming clean of the 5th part chapter 1 the 3rd joint raw gas; The concrete structure of described tubular heat exchanger 40 is seen the content introduction of the 5th part chapter 2 the 6th joint afterburning air heating, repeats no more here.
Here only explain for the relation between them, as shown in figure 13, the waste gas of the primary heater unit 39 of the primary heater unit 39 waste gas primary outlet 395 of assembling circuit 395 enters by pipeline and the hot waste gas of the bottom of the hot waste gas evaporation pipe network 472 of activated coke revivifier 47 and manages 477 and communicate; So that the waste gas after the major and minor internal-quirk burning of internal combustion heating unit enters exhaust air chamber 391 from the bottom admission passage 3911 of exhaust air chamber 391 successively, enter the preheating of stove coal by 392 pairs in heating by the exhaust gases passage and enter waste gas gathering circuit 395 afterwards, assemble the waste gas primary outlet 3951 of circuit 395 discharges from waste gas, enter in the hot waste gass evaporations pipe network 472 that pipe 477 enters activated coke revivifier 47 by hot waste gas, it is unsaturated activated coke that the saturated active coke in the revivifier housing 471 is evaporated thermal regeneration.
Further, the waste gas primary outlet 3951 that the waste gas of described primary heater unit 39 is assembled circuit 395 and the hot waste gas admission passage of tubular heat exchanger 40 407 communicate by pipeline, and the heat exchange waste gas of tubular heat exchanger 40 is discharged the hot waste gas that evaporates pipe network 472 bottoms by pipeline and the hot waste gas of activated coke revivifier 47 in main channel 405 and entered and manage 477 and communicate.
This routine a kind of hot waste gas enters the preheating of stove coal and reactive coke regeneration method, and step is:
(1), the hot waste gas after the burning enters from hot waste gas admission passage 3911, entering waste gas by heating by the exhaust gases passage 392 assembles in the circuit 395, assemble at last waste gas primary outlet 3951 discharges of circuit 395 from waste gas, hot waste gas after the burning can carry out thermal conduction to heating by the exhaust gases passage 392, internal layer body of wall 913, internal layer body of wall 912 in discharge process, preheating chamber 394 Airs are heated, the stove coal that enters that reaches falling into preheater 393 carries out preheating, can lower the temperature to the hot waste gas of discharging after burning from exhaust air chamber 391 again simultaneously;
What (2), the hot waste gas of the hot waste gas after will lowering the temperature by activated coke revivifier 47 entered pipe 477 enters into waste gas evaporation pipe network 472, carrying out heating evaporation by the saturated active coke in 472 pairs of revivifier housings of waste gas evaporation pipe network 471 is unsaturated activated coke, and the hot waste gas delivery pipe 479 by waste gas evaporation pipe network 472 discharges at last.
Further, a step between (1), (2), increasing, the hot waste gas waste gas admission passage 407 of hot waste gas by tubular heat exchanger 40 entered into waste gas heat radiation chamber 402 carry out heat exchange with metal heat-exchange pipe network 403, simultaneously air enters pipe from the air of metal heat-exchange pipe network and enters, warm air is discharged from the Bas Discharged pipe again, the waste heat that had both played hot waste gas further utilizes, and can heat the afterburning air again.
The 6th part: pyrolysis of coal automatic control device
Comprehensively above-mentioned, the pyrolysis of coal automatic control device comprises that industry control center 90 and above introduction connect thermometer and motor with the industry control center.
The pyrolysis of coal automation control method comprises entering the stove coal dewatering, enter the preheating of stove coal, entering the controls such as the adjusting of stove coal coal, the burning of outer combustion gas heating unit, the commutation of gas reversing system, the adjusting of raw gas pressure of above introduction.
The 7th part: thermal cycling continuous and automatic coal heat decomposition stove
Comprehensively above-mentioned, thermal cycling continuous and automatic coal heat decomposition stove comprise above concrete introduction enter that the stove coal advances coal, preheating, coal, cooling, charing, burnt upgrading, driedly puts out, raw gas derivation etc.
Claims (3)
1. a hot waste gas enters the preheating of stove coal and active coke regeneration device, it is characterized in that: comprise primary heater unit, activated coke revivifier; Described coal primary heater unit is installed in into the device for coal below, and is positioned at the top of coal heat decomposition stove, includes body of heater, exhaust air chamber, at least one above heating by the exhaust gases passage, preheater; That body of heater is divided into is interior, in, outer three layers of body of wall, internal layer body of wall form exhaust air chamber, form waste gas between middle level body of wall and the outer body of wall and assemble circuit, in waste gas gathering circuit, be provided with the waste gas primary outlet, that the heating by the exhaust gases passage passes is interior, the middle level body of wall is assembled circuit with exhaust air chamber and waste gas and is communicated with, and will being separated into several preheating chambers between internal layer body of wall and the middle level body of wall, preheater places respectively each preheating chamber; The bottom of exhaust air chamber is provided with the hot waste gas admission passage, hot waste gas after the burning enters from the hot waste gas admission passage, entering waste gas by the heating by the exhaust gases passage assembles in the circuit, assemble at last the waste gas primary outlet discharge of circuit from waste gas, the hot waste gas after the burning can carry out thermal conduction to heating by the exhaust gases passage, internal layer body of wall, internal layer body of wall in discharge process; Described activated coke revivifier comprises revivifier housing, hot waste gas evaporation pipe network, unsaturated activated coke recovery bin, the revivifier housing is a cavity container, the revivifier case top is provided with saturated active coke and enters gate valve, the bottom is provided with unsaturated activated coke discharging gate valve, unsaturated activated coke discharging gate valve below is provided with unsaturated activated coke recovery bin, also is provided with evaporation exhaust of oil pipe on the revivifier housing; Waste gas evaporation pipe network becomes independent loop to be arranged in the revivifier housing chamber, and the bottom of waste gas evaporation pipe network is provided with hot waste gas and enters pipe, and the top is provided with the hot waste gas delivery pipe; The hot waste gas that the waste gas primary outlet that the waste gas of described primary heater unit is assembled circuit evaporates the bottom of pipe network by pipeline and the hot waste gas of activated coke revivifier enters pipe and communicates.
According to claim 1 a kind of hot waste gas enter the preheating of stove coal and active coke regeneration device, it is characterized in that: described waste gas evaporation pipe network middle part is provided with the waste gas circulation pipeline, the waste gas circulation pipeline stretch out the revivifier housing outer and the hot waste gas blower fan link.
According to claim 1 a kind of hot waste gas enter the preheating of stove coal and active coke regeneration device, it is characterized in that: also comprise tubular heat exchanger, described tubular heat exchanger comprises the heat exchange housing, the metal heat-exchange pipe network, the hot waste gas admission passage, heat exchange waste gas exhaust channel, form waste gas heat radiation chamber in the heat exchange housing, hot waste gas admission passage and heat exchange waste gas exhaust channel are separately positioned on the heat exchange housing and with waste gas heat radiation chamber and communicate, the metal heat-exchange pipe network places waste gas heat radiation chamber, the metal heat-exchange pipe network comprises that air enters pipe and Bas Discharged pipe, and air enters pipe and the Bas Discharged pipe stretches out respectively the heat exchange hull outside; The waste gas primary outlet that the waste gas of described primary heater unit is assembled circuit communicates by pipeline with the hot waste gas admission passage of tubular heat exchanger, and the heat exchange waste gas discharge main channel of tubular heat exchanger enters pipe by pipeline with the hot waste gas of the hot waste gas generating tube sieve bottom of activated coke revivifier and communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203871513U CN202786126U (en) | 2012-08-06 | 2012-08-06 | Hot waste gas as-fired coal preheating and active coke regenerating device |
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|---|---|---|---|
| CN2012203871513U CN202786126U (en) | 2012-08-06 | 2012-08-06 | Hot waste gas as-fired coal preheating and active coke regenerating device |
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| CN202786126U true CN202786126U (en) | 2013-03-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087743A (en) * | 2012-08-06 | 2013-05-08 | 山西鑫立能源科技有限公司 | Device for preheating coal as fired and regenerating active coke by utilizing hot waste gas |
-
2012
- 2012-08-06 CN CN2012203871513U patent/CN202786126U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087743A (en) * | 2012-08-06 | 2013-05-08 | 山西鑫立能源科技有限公司 | Device for preheating coal as fired and regenerating active coke by utilizing hot waste gas |
| CN103087743B (en) * | 2012-08-06 | 2014-06-11 | 山西鑫立能源科技有限公司 | Device for preheating coal as fired and regenerating active coke by utilizing hot waste gas |
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