CN102796539A - Continuous coaling method of coal as fired - Google Patents
Continuous coaling method of coal as fired Download PDFInfo
- Publication number
- CN102796539A CN102796539A CN201210279059XA CN201210279059A CN102796539A CN 102796539 A CN102796539 A CN 102796539A CN 201210279059X A CN201210279059X A CN 201210279059XA CN 201210279059 A CN201210279059 A CN 201210279059A CN 102796539 A CN102796539 A CN 102796539A
- Authority
- CN
- China
- Prior art keywords
- coal
- stove
- bunker
- going
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a continuous coaling method of coal as fired. The method comprises the following steps of: (1) inputting a certain amount of dehydrated coal as fired in a bunker for coal as fired; (2) turning on a blanking control valve to enable the coal as fired to enter a preheater through a coal dust distributor chamber and a blanking pipe of the bunker for coal as fired and fall into a small coal bunker after preheating, and turning off the blanking control valve to stop coaling the small coal bunker when a loading level gauge of the coal bunker detects that the small coal bunker has been coaled fully; (3) when a carbonization chamber requires to be coaled, turning on a blanking valve of the small coal bunker to fill coal as fired in the carbonization chamber; (4) when the carbonization chamber requires to stop coaling, turning off the blanking valve of the small coal bunker to stop filling coal as fired in the carbonization chamber; (5) when the blanking level gauge of the coal bunker detects that the coal as fired in the small coal bunker is insufficient, turning on the blanking control valve to coal the small coal bunker; and when the loading level gauge of the coal bunker detects that the small coal bunker has coaled fully, turning off the blanking control valve to stop coaling the small coal bunker.
Description
Technical field
The present invention relates to a kind of coal method, particularly a kind of in the coking chamber of coal cracking stove continuous coal method.
Background technology
Coal cracking stove (pit kiln) in the market mostly adopts intermittent type coking; Go into the stove coal proportioning, to dewater, advance each process step such as coal, preheating, charing relatively independent; Do when industry in the coking chamber of coal cracking stove, carrying out coal; Can not be according to the situation of the discharging of the coke of coal carbonization in the coking chamber of coal cracking stove and coal cracking stove, continuous controllable ground adds injection stove coal in the coking chamber of subtend coal cracking stove.
This impels the inventor to think deeply to develop and a kind ofly can add to continuous controllable the method for injecting the stove coal.
Summary of the invention
The invention provides a kind of continuous coal method of stove coal of going into, this method can be according to the situation of the discharging of the coke of coal carbonization in the coking chamber of coal cracking stove and coal cracking stove, and continuous controllable ground add and injects the stove coal in the coking chamber of subtend coal cracking stove.
The present invention realizes through following technical scheme:
A kind ofly go into the continuous coal method of stove coal, the related equipment of present method comprises into device for coal, preheating unit, goes into stove coal surge bunker, and present method performing step is:
(1), opening the stove cuttings conveyer import a certain amount of through going into the stove coal after dewatering in going into the stove coal bunker;
(2), open the blanking valve; Go into going into stove coal process coal dust distribution chamber and going into stove coal bunker tremie pipe in the stove coal bunker and enter into the preheater preheating; Go into the stove coal and fall into coal pocket, fill it up with, close the blanking valve when the coal that level gage on the coal bunker detects in the coal pocket through after the preheating; Stop to the coal pocket coal, go into the stove coal and prestore earlier at coal pocket;
(3), when needs in coking chamber during coal, open the coal pocket baiting valve and in coking chamber, add and inject the stove coal;
(4), when needs stop coal to coking chamber, close the coal pocket baiting valve, stop in coking chamber adding the stove coal;
(5), go into the stove coal when not enough in the coal pocket, open the blanking valve, give coal in the coal pocket, fill it up with, close the blanking valve, stop to the coal pocket coal when the coal that level gage on the coal bunker detects in the coal pocket when level gage under the coal bunker detects.
Preferably, the related equipment of present method also comprises the industry control center, the industry control center with go into the stove cuttings conveyer and the blanking valve is electrically connected, and monitor preheating chamber thermometer and the electric logotype of exhaust air chamber thermometer in temperature monitoring; Be electrically connected with the upper and lower level gage of coal bunker, coal pocket thermometer, coal pocket baiting valve; Be used for going into the directly control and to the monitoring of monitoring preheating chamber thermometer, exhaust air chamber thermometer, coal pocket thermometer of stove cuttings conveyer, blanking valve, coal pocket baiting valve, present method performing step is preferably:
(1), the industry control center is opened the stove cuttings conveyer and in going into the stove coal bunker, is imported a certain amount of through going into the stove coal after the dehydration;
(2), the blanking valve is opened at the industry control center; Go into going into stove coal process coal dust distribution chamber and going into stove coal bunker tremie pipe in the stove coal bunker and enter into the preheater preheating; Go into the stove coal through falling into coal pocket after the preheating, when the industry control center receives that level gage on the coal bunker detects coal in the coal pocket and filled it up with signal, industry control closed center blanking valve; Stop to the coal pocket coal, go into the stove coal and prestore earlier at coal pocket;
(3), when needs in coking chamber during coal, the industry control center is opened the coal pocket baiting valve and in coking chamber, is added and inject the stove coal;
(4), when needs stop coal to coking chamber, industry control closed center coal pocket baiting valve stops in coking chamber adding the stove coal;
(5), when the industry control center receive level gage under the coal bunker detect in the coal pocket go into stove coal shortage signal the time; The blanking valve is opened at the industry control center; Give coal in the coal pocket; When the industry control center received that level gage on the coal bunker detects coal in the coal pocket and filled it up with signal, industry control closed center blanking valve stopped to the coal pocket coal.
The present invention is a kind of go into the continuous coal method of stove coal can be according to the situation of the discharging of the coke of coal carbonization in the coking chamber of coal cracking stove and coal cracking stove; Ground in the coking chamber of coal cracking stove, continuous controllable ground adds injection stove coal; The technical process such as coal, preheating, adjusting of advancing that to go into the stove coal are connected in series; Coal efficient is efficient, has greatly reduced the production cost of coke.
Description of drawings
Do further explain below in conjunction with the accompanying drawing specific embodiments of the invention.
Fig. 1 is that the stove coal dewatering device of going into involved in the present invention is assembled synoptic diagram;
Fig. 2 is an A place enlarged view among Fig. 1;
Fig. 3 is the water trap one embodiment schematic top plan view in the stove coal dewatering device of going into involved in the present invention;
Fig. 4 is another embodiment schematic top plan view of water trap in the stove coal dewatering device of going into involved in the present invention;
Fig. 5 is that the stove coal of going in the inventive method advances device assembling cross-sectional schematic such as coal, preheating;
Fig. 6 is a C place enlarged view among Fig. 5;
Fig. 7 is the preheater sectional view in the stove coal preheating unit of going in the inventive method;
Fig. 8 is an a-a place sectional view among Fig. 6;
Fig. 9 is the stove coal refrigerating unit synoptic diagram of going into of the present invention;
Figure 10 is a b-b place sectional view among Fig. 9;
Figure 11 is the synoptic diagram that is electrically connected involved in the present invention.
Embodiment
A kind of specific embodiment of going into the continuous coal method of stove coal of the present invention mainly amounts in four chapters and sections in following third part to be introduced in detail.
First partly goes into stove coal proportioning and preparation
A kind of coal cracking stove involved in the present invention can be gone into stove coal proportioning according to different, obtains the different coke of grade.
Following steps: 1) select 5 kinds of different coals for use, they are respectively bottle coal, rich coal, coking coal, 1/3rd coking coal, lean coal.2) bottle coal 20%～40% wherein; Rich coal 10%～20%; Coking coal 10%～20%; / 3rd coking coal 15%～30%; Lean coal 10%～15%; Mix earlier the fragmentation of sieving then, reach until crushed particles and be formed into the stove coal below the 5mm, certainly coal cracking stove of the present invention to other proportioning and particle size to go into the stove coal suitable equally; Do not constitute the required restriction of going into the stove coal dust of coal cracking stove of the present invention; Just, reduced the coke that the cost of going into the stove coal can obtain better quality simultaneously again, on market, had fine competitive power by above going into stove coal proportioning and can reaching more than 40% of lifting to the weakly caking coal amount of allocating into.
Second section is gone into the stove coal dewatering
Pit kiln in the market mostly adopts intermittent type coking, goes into the stove coal charge and is wet coal, so power consumption has increased the cost of coking, goes into dewatering of stove coal to what get into this coal cracking stove in advance, plays energy-saving and cost-reducing effect.
As shown in Figure 1: as describedly to go into stove coal dewatering device 1 and comprise dehydration support body 10, bucket elevator 11, waste gas water trap 12, coal dust strainer 13, feed bin 14, fly-ash separator 15, chimney 16, go into stove coal transfer roller 17.
Like Fig. 1, shown in Figure 2: waste gas water trap 12 comprises that dehydrator shell 121, hot waste gas master get into that pipe 122, dehydration waste gas master are discharged tracheae 123, gone into glassware 124, waste gas radiator element 125; Above dehydrator shell 121, be provided with into glassware 124; Be provided with at least one group of waste gas radiator element 125 below going into glassware 124 in dehydrator shell 121 inside; 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 gets into pipe 122 with the hot waste gas master respectively with dehydration waste gas exhaust channel 1252, dehydration waste gas master discharges tracheae 123 and communicates; Hot waste gas admission passage 1251 is in the inside of waste gas radiator element 125 up and down with dehydration waste gas exhaust channel 1252 to be arranged, and is beneficial to the drying and dehydrating into the stove coal.
As shown in Figure 2: as to go into glassware 124 and include 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 blanking vibratory screening apparatus 1244 again, blanking vibratory screening apparatus 1244 belows are provided with waste gas radiator element 125, and the purpose of design is in order to let stove coal more even distribution 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 oxygon up; Shift to install between last group of waste gas radiator element 125 and middle group of waste gas radiator element 125; Between the two adjacent waste gas radiator element 125 during a waste gas radiator element 125 promptly in the group just in time is arranged on and organizes; In like manner, between the two adjacent waste gas radiator element 125 during following group one waste gas radiator element 125 just in time is arranged in the group, purpose is for the drying area that is added to the stove coal, is beneficial to into coal and disperses landing.
Like Fig. 1, Fig. 2, shown in Figure 3: coal bunker 14 is set below waste gas radiator element 125; On coal bunker 14, put and be provided with coal dust strainer 13; Our image is called the coal dust respiratory organ; Coal dust strainer 13 comprises that mainly discharge siphunculus 134, off-air are discharged siphunculus 135 outward in filter body 131, the interior entering of off-air siphunculus 132, dust funnel 133, the off-air, is provided with entering siphunculus 132 in the off-air that leads to the top from the bottom at filter body 131 peripheries, in the filter body set inside dust funnel 133 is arranged; Dust funnel 133 leads to coal bunker 14; Above dust funnel 133, be provided with and discharge siphunculus 134 in the off-air, the inlet 1321 that gets into siphunculus 132 in the off-air is higher than the mouth 1341 of discharging siphunculus 134 in the off-air, discharges siphunculus 134 in the off-air and is arranged on the strainer internal head cover 137; Off-air is discharged siphunculus 135 outward and is provided with on the outer top cover 138 of strainer, outside strainer internal head cover 137 and strainer, is provided with steel fiber filtering net 136 between the top cover 138.
As shown in Figure 3: as to get into siphunculus 132 in the off-air and be arranged in the filter body 131, get into siphunculus 132 in the off-air and in filter body 131, form cyclone structure with the interior 134 one-tenth vertical angles of siphunculus of discharging of off-air.
As shown in Figure 1: fly-ash separator 15 connects dehydration waste gas master and discharges tracheae 123, and fly-ash separator 15 is existing dedusting technologies, and fly-ash separator 15 comprises fly-ash separator housing 151; Dust settling chamber 152, dehydration waste gas master discharges tracheae 123 leads to dust settling chamber 152, and dust settling chamber 152 communicates with chimney 16 through induced draft fan 18 again; Dust settling chamber 152 belows are provided with flyash delivery pipe 153; Described dust settling chamber 152 can be wet dedusting, also can adopt dry-method bag-type dust collecting, introduces wet dedusting here; In fly-ash separator housing 151, be provided with sprinkler head 154 above the dust settling chamber, dehydration waste gas master discharges tracheae 123 and submerges in the water in the dust settling chamber 152.
Like Fig. 1, shown in Figure 2: hot waste gas gets into tracheae 122 through the hot waste gas master and gets into the inner waste gas admission passage 1251 of waste gas radiator element 125; Get into dehydration waste gas master through waste gas radiator element 125 inner dehydration waste gas exhaust channels 1252 again and discharge tracheae 123, 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 through 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.
Like Fig. 1, shown in Figure 2: the hot waste gas after the burning gets into tracheae 122 typical temperatures at 700 ℃～800 ℃ getting into 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 of going into through waste gas radiator element 125 is dewatered, can let the water ratio of stove coal again below 1%; Reach effective utilization, save energy consumption the hot waste gas after the burning.
Like Fig. 1, shown in Figure 2: the discharge bucket 111 of bucket elevator 11 is arranged on material bin 1241 tops, goes into the bottom that stove coal transfer roller 17 is arranged on coal bunker 14.
Shown in figure 11: this example also comprises industry control center 90, the 90 pairs of induced draft fans that directly are electrically connected with it 18 in industry control center, goes into stove coal transfer roller 17 and bucket elevator 11 is controlled,
This example also includes stove coal electric controller 901; Going into 901 pairs of stove coal electric controllers goes into stove coal transfer roller 17, induced draft fan 18 and bucket elevator 11 and controls automatically respectively; Go into stove coal electric controller 901 and link with upper industry control center 90 again, realize going into the robotization of stove coal dewatering.Certainly, go into stove coal transfer roller 17, induced draft fan 18 and bucket elevator 11 in this example and also can directly receive 90 controls of industry control center, so set into the restriction that stove coal electric controller 901 does not constitute this routine protection domain here from electric control theory.
This example is gone into stove coal dewatering method 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; The stove coal of going into through bucket elevator 11 is accomplished proportioning is earlier sent in the dehydrator shell 121 top material bins 1241; Through 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 being got into tracheae 122 through the hot waste gas master feeds in the waste gas admission passage 1251 of waste gas radiator element 125 inside; Get into dehydration waste gas master through waste gas radiator element 125 inner dehydration waste gas exhaust channels 1252 again and discharge tracheae 123, discharge from chimney 16 afterwards through the water layer cleaning that induced draft fan 18 gets in the dust settling chamber 152 again;
3, meanwhile; Go into the stove coal fall into through waste gas radiator element 125 coal bunker 14 processes also can be to dehydrator shell 121 chambeies in coal bunker 14 storehouses in air heat; Heated air utilizes the heat buoyancy of self to get into the interior siphunculus 132 (like Fig. 3) that gets into of off-air of coal dust strainer 13; Be higher than the inlet 1341 of discharging siphunculus 134 in the off-air owing to get into the inlet 1321 of siphunculus 132 in the off-air; Hot off-air forms whirlwind from top to bottom and gets into discharge siphunculus 134 in the off-air; Discharge siphunculus 135 dischargings outward through steel fiber filtering net 136 and off-air at last, thereby the dust funnel 133 that the dust in the off-air falls into the below because of steel fiber filtering net 136 intercepts gets into coal bunker 14.
Third part is gone into the stove coal and is advanced coal, preheating, adjusting, cooling
The stove coal process of going into after the dehydration carries the back temperature generally can reduce to normal temperature; Particularly winter temperature is lower; Temperature may be lower; But but hope during coking to go into stove coal temperature remain between 200 ℃ to 300 ℃ more suitable, so need before the coking chamber that gets into the coal cracking stove, carry out preheating to going into the stove coal.
First segment is gone into the stove coal and is advanced coal
As shown in Figure 5: advance that device for coal 2 mainly includes stove cuttings conveyer 21, goes into stove coal bunker 22, the coal dust branch to device 25, coal dust distribution chamber 26, go into stove coal bunker tremie pipe 29, coal dust strainer 23.
As shown in Figure 5; Go into stove cuttings conveyer 21 and adopt screw conveying structure; Be arranged on into stove coal bunker 22 tops, go into the middle coal dust branch that convexity is set in stove coal bunker 22 bottoms, will go into stove coal bunker 22 bottoms and be divided into several coal dust distribution chambers 26 to device 25; This example is provided with 8 coal dust distribution chambers 26 altogether, is connected to stove coal bunker tremie pipe 29 respectively in coal dust distribution chamber 26 bottoms, goes on the stove coal bunker tremie pipe 29 blanking valve 24 is set.
Like Fig. 5, shown in Figure 4; Coal dust strainer 23 (just the same basically with the coal dust filtration device 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 get into outward discharge siphunculus 234 in the siphunculus 232, dust funnel 233, off-air, off-air is discharged siphunculus 235 outward; Off-air gets into siphunculus 232 outward and is arranged on filter body 231 neighborings; In filter body 231 set inside dust funnel 233 is arranged; Dust funnel 233 leads to into stove coal bunker 22, above dust funnel 233, is provided with and discharges siphunculus 234 in the off-air, and the inlet that off-air gets into siphunculus 232 outward is higher than discharge siphunculus 234 inlets in the off-air; Off-air gets into 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; Discharge siphunculus 234 in the off-air and be arranged on the strainer internal head cover 237, off-air is discharged siphunculus 235 outward and is provided with on the outer top cover 238 of strainer, outside strainer internal head cover 237 and strainer, is provided with steel fiber filtering net 236 between the top cover 238.
In addition; Shown in figure 11, this example also comprises into device for coal electric controller 902, advances 902 pairs of coal electric controllers and goes into stove cuttings conveyer 21 and control with blanking valve 24; Advancing device for coal electric controller 902 links with upper industry control center 90 again; Certainly from electric control theory, go into stove cuttings conveyer 21 in this example and also can directly receive 90 controls of industry control center with blanking valve 24, do not constitute restriction so be provided with device for coal electric controller 902 here to this routine protection domain.
Second joint is gone into the preheating of stove coal
Like Fig. 5, shown in Figure 6: preheating unit 39 places the into below of device for coal 2, and preheating unit 39 is positioned at the top of coal cracking stove 9.
Like Fig. 6, Fig. 7, shown in Figure 8; Preheating unit 39 mainly includes the above heating by the exhaust gases passage of body of heater 91, exhaust air chamber 391, at least one 392, preheater 393; That body of heater 91 is divided into is interior, in, outer three layers of body of wall 913,912,911 (shown in Figure 8), internal layer body of wall 913 form exhaust air chamber 391 middle level bodies of wall 912 and outer body of wall 911 and form waste gas gathering circuits 395; Assemble circuit 395 at waste gas and be provided with waste gas primary outlet 3951; That heating by the exhaust gases passage 392 passes is interior, middle level body of wall 913,912 is assembled circuit 395 with exhaust air chamber 391 and waste gas and is communicated with; And with being separated into several preheating chambers 394 (as shown in Figure 8, this example has 8 heating by the exhaust gases passages 392 will be separated out 8 preheating chambers 394) between internal layer body of wall 913 and the middle level body of wall 912, preheater 393 places each preheating chamber 394 respectively.
Like Fig. 7, shown in Figure 8: 393 one-tenth round shapes of preheater adopt steel; Preheater 393 comprises that cylindrical shell 3931, taper branch are to device 3932; Open wide funnel 3933; Preheating coal blanking road 3934, taper divide to device 3932 and unlimited funnel 3933 to be arranged on cylindrical shell 3931 successively from top to bottom in groups, is beneficial to going into the even preheating of coal stove.
Like 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; On body of heater 91, be provided with 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; On body of heater 91, be provided with 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 to monitor exhaust air chamber 391, in addition; At the top of exhaust air chamber 391 upper observation hole 3912 is set, in the bottom of exhaust air chamber 391 lower observation hole 3913 is set so that the technician observes the working condition of exhaust air chamber 391, coal cracking stove 9 bottoms.
Like 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 dust strainer 23 gets into siphunculus 232 outward; The hot off-air of dust-laden of preheating chamber 394 tops is entered off-air get into outward in the siphunculus 232, the stove coal of going into that helps in the coal stove storehouse 22 drops into preheating in the preheating chamber 394 smoothly.
Like 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 gets into from hot waste gas admission passage 3911; Get into waste gas through heating by the exhaust gases passage 392 and assemble in the circuit 395, assemble waste gas primary outlet 3951 discharges of circuit 395 at last from waste gas, the 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; The unique texture design of this preheating unit 39; Be to utilize the hot waste gas of from exhaust air chamber 391, discharging after burning that preheating chamber 394 air are heated, the stove coal of going into 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; Need not consume the extra energy, reach self UTILIZATION OF VESIDUAL HEAT IN purpose the hot waste gas after the burning.
In addition, shown in figure 11, this example comprises that also preheating temperature monitor 903 is used to monitor the temperature data of 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 also can directly receive 90 monitorings of industry control center with exhaust air chamber thermometer 3915 in this example, does not constitute restriction to this routine protection domain so preheating temperature monitor 903 is set here.
The stove coal of going into after the 3rd joint preheating is regulated
Like Fig. 5, shown in Figure 6; Go into stove coal surge bunker 3; Going into 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 is gone into stove coal surge bunker 3 and is comprised the upper and lower level gage of coal pocket 31, coal bunker 32,33, coal pocket thermometer 34, coal pocket blanking road 35, coal pocket baiting valve 36.
Like Fig. 5, shown in Figure 6; Coal pocket 31 tops connect preheater 393 bottoms; The upper and lower level gage 32,33 of coal bunker is located at the top and the bottom of coal pocket 31 respectively; Coal pocket thermometer 34 is positioned at coal pocket 31 middle parts, and coal pocket blanking road 35 is connected on the bottom of coal pocket 31 through coal pocket baiting valve 36, and coal pocket blanking road 35 leads to coal cracking oven carbonization chamber 61 (shown in Figure 9).
In addition; Shown in figure 11: this example also includes the stove coal and regulates the temperature signal of material level signal that electric controller 904 is used to gather the upper and lower level gage 32,33 of coal bunker, coal pocket thermometer 34 and the switching of coal pocket baiting valve 36 is realized control automatically; Going into stove coal adjusting electric controller 904 links with upper industry control center 90 again; Certainly from electric control theory; The temperature signal of the material level signal of the upper and lower level gage 32,33 of collection coal bunker, coal pocket thermometer 34 is gathered by also can directly at industry control center 90 in this example; Coal pocket baiting valve 36 opens and closes and directly receives 90 controls of industry control center, does not constitute the restriction to this routine protection domain so set into stove coal adjusting electric controller 904 here.
This example is gone into stove coal control method:
1, the stove coal of going into after the preheating is injected coal pocket 31 and prestores earlier, when needs to coking chamber 61 in during coal, industry control center 90 is opened coal pocket baiting valves 36 and in coking chamber 61, is gone into the stove coal;
2, when needs stop coal to coking chamber, coal pocket baiting valve 36 is closed at industry control center 90, stops in coking chamber 61, to add the stove coal;
3, when level gage under the coal bunker 33 detects the coal deficiency in the coal pocket 31; Blanking valve 24 is opened at industry control center 90; Give coal in the coal pocket 31, fill it up with when the coal that level gage on the coal bunker 32 detects in the coal pocket 31, blanking valve 24 is closed at industry control center 90; Stop to coal pocket 31 coals, play the stove coal of going into that gets into coking chamber 61 is regulated.
Like 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 dust strainer 23 gets into siphunculus 232 outward; The dust-laden warm air of coal pocket 31 tops is able to enter off-air and gets into outward in the siphunculus 232, is beneficial to smooth coal in coal pocket 31
The stove coal of going into that the 4th joint advances before the coking chamber cools off
As shown in Figure 9; Coal pocket blanking road 35 is when the coking chamber 61 of coal cracking stove is annotated coal; Because there is the raw gas that produces in a large amount of coal cracking 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, causes the stove coal in coal pocket blanking road 35, to lump easily; Obstruction is annotated coal in coking chamber 61, thereby need cool off going into the stove coal.
Like Fig. 9, shown in Figure 10; Go into stove coal refrigerating unit 5 and comprise air admission siphunculus 57, air discharge siphunculus 51, air admission endless tube 56, air are discharged endless tube 52, air admission arm 54, air exhaust outlet 53, cooling air channel 55; Wherein, Air admission siphunculus 57 and air admission endless tube 56, air are discharged siphunculus 51 and are discharged endless tube 52 with air and communicate, air admission endless tube 56, air discharge endless tube 52 be separately positioned on body of heater 91 around; Air admission endless tube 56 is discharged on the endless tube 52 with air and is connected to air admission arm 54, air exhaust outlet 53 respectively; Wherein air admission arm 54 is connected on cooling air channel 55 belows, and air exhaust outlet 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.
Like Figure 10, shown in Figure 9; Because this body of heater 91 is designed to annular;, the coal pocket 31 that is provided with 8 notes coals around it carries out even coal around being beneficial to coking chamber 61; So cooling air channel 55 is corresponding with the quantity in coal pocket blanking road 35 also to be 8,, to utilize in the cooling air channel 55 the stove coal of going in the coal pocket blanking road 35 is cooled off when air gets into air admission endless tube 56, air admission arm 54, cooling air channel 55 successively, discharges discharge endless tube 52, the air discharge siphunculus 51 from air exhaust outlet 53, air again from air admission siphunculus 57; 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 receives the heat affecting of raw gas bigger; 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, utilizes natural air to cool off; Reduce to blast the air quantity in the cooling air channel 55, thereby save energy consumption.
Claims (2)
1. go into the continuous coal method of stove coal for one kind, it is characterized in that: the related equipment of present method comprises into device for coal, preheating unit, goes into stove coal surge bunker, and present method performing step is:
(1), opening the stove cuttings conveyer import a certain amount of through going into the stove coal after dewatering in going into the stove coal bunker;
(2), open the blanking valve; Go into going into stove coal process coal dust distribution chamber and going into stove coal bunker tremie pipe in the stove coal bunker and enter into the preheater preheating; Go into the stove coal and fall into coal pocket, fill it up with, close the blanking valve when the coal that level gage on the coal bunker detects in the coal pocket through after the preheating; Stop to the coal pocket coal, go into the stove coal and prestore earlier at coal pocket;
(3), when needs in coking chamber during coal, open the coal pocket baiting valve and in coking chamber, add and inject the stove coal;
(4), when needs stop coal to coking chamber, close the coal pocket baiting valve, stop in coking chamber adding the stove coal;
(5), go into the stove coal when not enough in the coal pocket, open the blanking valve, give coal in the coal pocket, fill it up with, close the blanking valve, stop to the coal pocket coal when the coal that level gage on the coal bunker detects in the coal pocket when level gage under the coal bunker detects.
According to claim 1 a kind ofly go into the continuous coal method of stove coal; It is characterized in that: the related equipment of present method also comprises the industry control center; The industry control center with go into the stove cuttings conveyer and the blanking valve is electrically connected, and monitor preheating chamber thermometer and the electric logotype of exhaust air chamber thermometer in temperature monitoring; Be electrically connected with the upper and lower level gage of coal bunker, coal pocket thermometer, coal pocket baiting valve; Be used for going into the directly control and to the monitoring of monitoring preheating chamber thermometer, exhaust air chamber thermometer, coal pocket thermometer of stove cuttings conveyer, blanking valve, coal pocket baiting valve, present method performing step is preferably:
(1), the industry control center is opened the stove cuttings conveyer and in going into the stove coal bunker, is imported a certain amount of through going into the stove coal after the dehydration;
(2), the blanking valve is opened at the industry control center; Go into going into stove coal process coal dust distribution chamber and going into stove coal bunker tremie pipe in the stove coal bunker and enter into the preheater preheating; Go into the stove coal through falling into coal pocket after the preheating, when the industry control center receives that level gage on the coal bunker detects coal in the coal pocket and filled it up with signal, industry control closed center blanking valve; Stop to the coal pocket coal, go into the stove coal and prestore earlier at coal pocket;
(3), when needs in coking chamber during coal, the industry control center is opened the coal pocket baiting valve and in coking chamber, is added and inject the stove coal;
(4), when needs stop coal to coking chamber, industry control closed center coal pocket baiting valve stops in coking chamber adding the stove coal;
(5), when the industry control center receive level gage under the coal bunker detect in the coal pocket go into stove coal shortage signal the time; The blanking valve is opened at the industry control center; Give coal in the coal pocket; When the industry control center received that level gage on the coal bunker detects coal in the coal pocket and filled it up with signal, industry control closed center blanking valve stopped to the coal pocket coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210279059.XA CN102796539B (en) | 2012-08-06 | 2012-08-06 | Continuous coaling method of coal as fired |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210279059.XA CN102796539B (en) | 2012-08-06 | 2012-08-06 | Continuous coaling method of coal as fired |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102796539A true CN102796539A (en) | 2012-11-28 |
| CN102796539B CN102796539B (en) | 2014-06-11 |
Family
ID=47195850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210279059.XA Expired - Fee Related CN102796539B (en) | 2012-08-06 | 2012-08-06 | Continuous coaling method of coal as fired |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102796539B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616079A (en) * | 2019-09-27 | 2019-12-27 | 中冶焦耐(大连)工程技术有限公司 | Coal charging process for reducing emission of sulfur dioxide from source |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4406744A (en) * | 1981-11-16 | 1983-09-27 | Clyde Berg | Process for the production of hydrogenated tar and distillates and low sulfur coke from coal |
| WO2007132528A1 (en) * | 2006-05-17 | 2007-11-22 | Toshihiro Abe | Method of coal degradation and apparatus therefor |
| CN101995836A (en) * | 2010-11-01 | 2011-03-30 | 广州迪森热能技术股份有限公司 | Automatic biomass gas feeding and diffusing control system and biomass gasification reaction system |
| CN102250629A (en) * | 2011-06-13 | 2011-11-23 | 山西利华新科技开发有限公司 | Coking furnace capable of recycling heat energy and coking method |
| CN202246074U (en) * | 2011-09-19 | 2012-05-30 | 山东科技大学 | Carbonization furnace for activated coke production |
-
2012
- 2012-08-06 CN CN201210279059.XA patent/CN102796539B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4406744A (en) * | 1981-11-16 | 1983-09-27 | Clyde Berg | Process for the production of hydrogenated tar and distillates and low sulfur coke from coal |
| WO2007132528A1 (en) * | 2006-05-17 | 2007-11-22 | Toshihiro Abe | Method of coal degradation and apparatus therefor |
| CN101995836A (en) * | 2010-11-01 | 2011-03-30 | 广州迪森热能技术股份有限公司 | Automatic biomass gas feeding and diffusing control system and biomass gasification reaction system |
| CN102250629A (en) * | 2011-06-13 | 2011-11-23 | 山西利华新科技开发有限公司 | Coking furnace capable of recycling heat energy and coking method |
| CN202246074U (en) * | 2011-09-19 | 2012-05-30 | 山东科技大学 | Carbonization furnace for activated coke production |
Non-Patent Citations (2)
| Title |
|---|
| 刘仁生等: "《钢铁工业节能减排新技术5000问 上》", 31 July 2009, 中国科学技术出版社 * |
| 郑明东等: "《炼焦新工艺与技术》", 31 January 2006, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616079A (en) * | 2019-09-27 | 2019-12-27 | 中冶焦耐(大连)工程技术有限公司 | Coal charging process for reducing emission of sulfur dioxide from source |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102796539B (en) | 2014-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102786941B (en) | Heat cycle continuous automatic coal pyrolyzing furnace | |
| CN102816611B (en) | Comprehensive and recycling utilization method of coal pyrolysis gases | |
| CN202786158U (en) | Comprehensive coal pyrolysis gas recycling device | |
| CN102925168B (en) | Heat-circulation continuous automated coal pyrolysis method | |
| CN102786958B (en) | Coal as fired regulation bunker for coal pyrolyzing furnace | |
| CN202936373U (en) | Continuous coal feeding device for as-fired coal | |
| CN202936378U (en) | As-fired coalwaste gas dehydrator of coal pyrolyzing furnace | |
| CN202881182U (en) | As-fired coal feeding device of coal pyrolysis furnace | |
| CN102786978B (en) | Coal as fired dehydration method for coal pyrolyzing furnace | |
| CN202936377U (en) | As-fired coal cooling device of coal pyrolyzing furnace | |
| CN202849319U (en) | Coal as fired adjusting bin for coal pyrolyzing furnace | |
| CN102796539B (en) | Continuous coaling method of coal as fired | |
| CN102786957B (en) | Coal as fired regulation method for coal pyrolyzing furnace | |
| CN102786955B (en) | Coal feeding device for coal pyrolyzing furnace | |
| CN202936379U (en) | As-fired coal dehydration device for coal pyrolyzing furnace | |
| CN102816580B (en) | Method for preheating coal as fired by hot exhaust gas and regenerating active coke by hot exhaust gas | |
| CN202778128U (en) | Coal-as-fired powder filter of coal pyrolysis furnace | |
| CN102786956B (en) | Continuous coal feeding device for furnace | |
| CN202786124U (en) | Coal as fired preheating device of coal pyrolysis furnace | |
| CN102796546B (en) | Preheating device of coal as fired in coal pyrolysis furnace | |
| CN202786125U (en) | Hot waste gas as-fired coal preheating and dewatering device | |
| CN103087743B (en) | Device for preheating coal as fired and regenerating active coke by utilizing hot waste gas | |
| CN102784528B (en) | Filter for pulverized coal as fired of pyrolysis furnace | |
| CN202786126U (en) | Hot waste gas as-fired coal preheating and active coke regenerating device | |
| CN102786977B (en) | Firing coal waste gas dehydrator of coal pyrolyzing furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Haisheng Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Haisheng Document name: Notification of procedure qualification |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20210806 |