CN103396811A - High temperature powder semi-coke cooling system - Google Patents
High temperature powder semi-coke cooling system Download PDFInfo
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- CN103396811A CN103396811A CN2013103591649A CN201310359164A CN103396811A CN 103396811 A CN103396811 A CN 103396811A CN 2013103591649 A CN2013103591649 A CN 2013103591649A CN 201310359164 A CN201310359164 A CN 201310359164A CN 103396811 A CN103396811 A CN 103396811A
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- 239000000843 powder Substances 0.000 title claims abstract description 210
- 238000001816 cooling Methods 0.000 title claims abstract description 120
- 239000000571 coke Substances 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 79
- 239000000498 cooling water Substances 0.000 claims description 48
- 230000008676 import Effects 0.000 claims description 44
- 238000003860 storage Methods 0.000 claims description 27
- 239000010881 fly ash Substances 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000003763 carbonization Methods 0.000 abstract description 6
- 238000000605 extraction Methods 0.000 abstract 2
- 239000002826 coolant Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000000197 pyrolysis Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The present invention provides a high temperature powder semi-coke cooling system, which comprises: a carbonization furnace, a heat extraction cooler connected with a coke outlet of the carbonization furnace, a buffer bin connecting the coke outlet and the heat extraction cooler, a closed housing connecting the carbonization furnace and the buffer bin and forming a closed chamber, and a steel belt conveyor positioned on the closed chamber and provided for conveying high temperature powder semi-coke to the buffer bin from the coke outlet. According to the high temperature powder semi-coke cooling system, the steel belt conveyor capable of bearing a high temperature powder semi-coke temperature is adopted to convey high temperature powder semi-coke to the buffer bin; the closed housing connecting the carbonization furnace and the buffer bin is arranged, such that the steel belt conveyor is positioned inside the closed housing to achieve closed conveying so as to achieve high temperature powder semi-coke conveying by the steel belt conveyor and high temperature powder semi-coke cooling; and power consumption of conveying by adopting the steel belt conveyor is low, and the centralized cooling manner is adopted, such that investment cost and operation cost of the high temperature powder semi-coke cooling system are low.
Description
Technical field
The present invention relates to high temperature powder semicoke conveying technology field, more particularly, relate to a kind of high temperature powder semicoke cooling system.
Background technology
Coal becomes flammable solid after low-temperature pyrolysis, be semicoke or coke.The semicoke of retorting technique production or coke mainly contain block semicoke and powder semicoke according to the technique difference.According to the difference of outlet temperature, destructive distillation has dividing of low-temperature pyrolysis (500-600 ℃), medium temperature carbonization (750-800 ℃) and high temperature carbonization (1000-1100 ℃), and the semicoke that destructive distillation obtains also has dividing of low temperature semicoke, middle temperature semicoke and high temperature semicoke.For the high temperature powder semicoke, need to enter the heat-obtaining water cooler and carry out coolingly after charring furnace production, therefore the high temperature powder semicoke in charring furnace need to be delivered to the heat-obtaining water cooler.
The equipment of conveying solid material mainly contains endless belt conveyor, chapelet and screw conveyer.Wherein, the transmission range of endless belt conveyor is longer, and the transmission range of screw conveyer is shorter.For endless belt conveyor, be that open type carries,, if carry the high temperature powder semicoke, can cause the high temperature powder semicoke to fly upward, can't realize carrying, conveying belt is also more difficult simultaneously meets resistant to elevated temperatures requirement; For chapelet and screw conveyer, equipment all can not bear the high temperature of high temperature powder semicoke.Therefore, above-mentioned three kinds of handling equipments commonly used, all can not, for delivery of the high temperature powder semicoke, cause realizing the cooling of high temperature powder semicoke.
In sum, how realizing the conveying of high temperature powder semicoke,, to realize cooling to the high temperature powder semicoke, is present those skilled in the art's problem demanding prompt solution.
Summary of the invention
The purpose of this invention is to provide a kind of high temperature powder semicoke cooling system, realize to carry the high temperature powder semicoke, and then realize cooling to the high temperature powder semicoke.
To achieve these goals, the invention provides following technical scheme:
A kind of high temperature powder semicoke cooling system comprises: charring furnace, the heat-obtaining water cooler that is connected with the coke outlet of described charring furnace; The surge bunker that connects described coke outlet and described heat-obtaining water cooler; Connect described charring furnace and described surge bunker, and form the closure casing of closed cavities; Be positioned at described closed cavities, and from described coke outlet, carry the steel band conveyor of high temperature powder semicoke to described surge bunker.
Preferably, in above-mentioned high temperature powder semicoke cooling system, the conveying belt of described steel band conveyor is Stainless Steel Band.
Preferably, in above-mentioned high temperature powder semicoke cooling system, described heat-obtaining water cooler comprises: housing and the cooling tube bundle that is positioned at described housing, be provided with the import of powder semicoke, fluidized wind import, powder semicoke on described housing and eject mouth, powder semicoke bottom outlet, entrance of cooling water and vapour outlet, wherein, described entrance of cooling water is connected with described cooling tube bundle respectively with described vapour outlet, and the import of described powder semicoke is connected with the outlet of described surge bunker by defeated burnt pipeline;
Described high temperature powder semicoke cooling system also comprises: the first air supply duct that is connected with described fluidized wind import, the water supply line that is connected with described entrance of cooling water.
Preferably, in above-mentioned high temperature powder semicoke cooling system, the import of described powder semicoke is positioned at the top side wall of described housing; Described powder semicoke ejects mouth and is positioned at the roof top of described housing, and described powder semicoke bottom outlet is positioned at the diapire bottom of described housing, and described entrance of cooling water is positioned at the sidewall bottom of described housing, and described vapour outlet is positioned at the top side wall of described housing.
Preferably, in above-mentioned high temperature powder semicoke cooling system, the semicoke storage tank of described high temperature powder semicoke cooling system ejects mouth with described powder semicoke and is connected;
Described high temperature powder semicoke cooling system also comprises: the fly-ash separator that its blast inlet is connected with the air outlet of described semicoke storage tank, the second air supply duct that is connected with the air outlet of described fly-ash separator;
Wherein, described the second air supply duct is communicated with described the first air supply duct; Described the first air supply duct is connected with the back blow port of described fly-ash separator by subsidiary conduit, and described the first air supply duct is communicated with wind regime.
Preferably, above-mentioned high temperature powder semicoke cooling system, also comprise the cyclonic separator that is positioned at described semicoke storage tank, the import of described cyclonic separator is connected with the air outlet of described semicoke storage tank, the coke outlet of described cyclonic separator is positioned at described semicoke storage tank, and the air outlet of described cyclonic separator is connected with the blast inlet of described fly-ash separator.
Preferably, in above-mentioned high temperature powder semicoke cooling system, described heat-obtaining water cooler comprises:
First step heat-obtaining water cooler, described first step heat-obtaining water cooler comprises the first housing and is positioned at the first cooling tube bundle of described the first housing, be provided with the first powder semicoke import, the first powder semicoke outlet, the first entrance of cooling water and vapour outlet on described the first housing, wherein, described the first entrance of cooling water is connected with described the first cooling tube bundle respectively with described vapour outlet, and described the first powder semicoke import is connected with the outlet of described surge bunker by the first defeated burnt pipeline;
Second stage heat-obtaining water cooler, described second stage heat-obtaining water cooler comprises the second housing and is positioned at the second cooling tube bundle of described the second housing, be provided with the second powder semicoke import, the second powder semicoke outlet, the second entrance of cooling water and the second cooling water outlet on described the second housing, wherein, described the second entrance of cooling water is connected with described the second cooling tube bundle respectively with described the second cooling water outlet, and described the second powder semicoke import is connected with described the first powder semicoke outlet by the second defeated burnt pipeline;
Described high temperature powder semicoke cooling system also comprises: the 3rd air supply duct that is connected with the blast inlet of described the first defeated burnt pipeline, the first water supply line that is connected with described the first entrance of cooling water, the second water supply line that is connected with described the second entrance of cooling water.
Preferably, in above-mentioned high temperature powder semicoke cooling system, described the first powder semicoke import is positioned at the diapire bottom of described the first housing, described the first entrance of cooling water is positioned at the top side wall of described the first housing, described vapour outlet is positioned at the roof top of described the first housing, and described the first powder semicoke outlet is positioned at the sidewall middle part of described the first housing;
Described the second powder semicoke import is positioned at the diapire bottom of described the second housing, described the second entrance of cooling water is positioned at the top side wall of described the second housing, described the second cooling water outlet is positioned at the roof top of described the second housing, and described the second powder semicoke outlet is positioned at the sidewall middle part of described the second housing.
Preferably, in above-mentioned high temperature powder semicoke cooling system, be provided with the first class wind inlet on described the first housing, be provided with second wind transmission import on described the second housing;
Described high temperature powder semicoke cooling system also comprises: the 4th air supply duct that is connected with described first class wind inlet; The 5th air supply duct that is connected with described second wind transmission import.
Preferably, in above-mentioned high temperature powder semicoke cooling system, the number of the coke outlet of described charring furnace is at least two.
High temperature powder semicoke cooling system provided by the invention, arrange surge bunker between charring furnace and heat-obtaining water cooler, employing can be born the steel band conveyor of high temperature powder semicoke temperature and be carried the high temperature powder semicoke from the coke outlet of charring furnace to surge bunker; The closure casing that connects charring furnace and surge bunker is set, make steel band conveyor be positioned at the closed cavities of closure casing, carry to realize sealing, make the high temperature powder semicoke enter the heat-obtaining water cooler from coke outlet after surge bunker, thereby realized the conveying of steel band conveyor to the high temperature powder semicoke, and then realized cooling to the high temperature powder semicoke.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the high temperature powder semicoke cooling system that Fig. 1 provides for the embodiment of the present invention.
In upper Fig. 1:
1 is that charring furnace, 2 is that steam-pipe, 3 is that closure casing, 4 is that steel band conveyor, 5 is that surge bunker, 6 is that the first air supply duct, 7 is that heat-obtaining water cooler, 8 is that the second air supply duct, 9 is that fly-ash separator, 10 is that cyclonic separator, 11 is that semicoke storage tank, 12 is water supply line.
Embodiment
The embodiment of the present invention provides a kind of high temperature powder semicoke cooling system, has realized the conveying to the high temperature powder semicoke, and then has realized cooling to the high temperature powder semicoke.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment that obtains, belong to the scope of protection of the invention.
The high temperature powder semicoke cooling system that the embodiment of the present invention provides comprises: charring furnace 1, the heat-obtaining water cooler 7 that is connected with the coke outlet of charring furnace 1; The surge bunker 5 that connects coke outlet and heat-obtaining water cooler 7, connect charring furnace 1 and surge bunker 5, and form the closure casing 3 of closed cavities; Be positioned at closed cavities, and from coke outlet, carry the steel band conveyor 4 of high temperature powder semicoke to surge bunker 5.
Need to prove, form closed cavities after closure casing 3 is connected with charring furnace 1 and surge bunker 5.Steel band conveyor 4 can bear the high temperature of high temperature powder semicoke; Steel band conveyor 4 mainly comprises: frame, and conveying belt, be arranged on frame and drive the transmission mechanism that conveying belt moves, the carrying roller of support belt; Wherein, transmission mechanism mainly comprises cylinder, and the motor of head roll rotation, and conveying belt is connected with cylinder.Usually steel band conveyor 4 also comprises clearing apparatus, so that the cleaning conveying belt.
The high temperature powder semicoke cooling system that the embodiment of the present invention provides, between charring furnace 1 and heat-obtaining water cooler 7, surge bunker 5 is set, employing can be born the steel band conveyor 4 of high temperature powder semicoke temperature and be carried the high temperature powder semicoke from the coke outlet of charring furnace 1 to surge bunker 5, make the high temperature powder semicoke enter again heat-obtaining water cooler 7 in the interior realization buffering of surge bunker 5, to guarantee the normal use of heat-obtaining water cooler 7; The closure casing 3 that connects charring furnace 1 and surge bunker 5 is set simultaneously, make steel band conveyor 4 be positioned at the closed cavities of closure casing 3, carry to realize sealing, make the high temperature powder semicoke enter heat-obtaining water cooler 7 from coke outlet after surge bunker 5, thereby realized the conveying of 4 pairs of high temperature powder semicokes of steel band conveyor, and then realized cooling to the high temperature powder semicoke.
Simultaneously, the high temperature powder semicoke cooling system that the embodiment of the present invention provides, adopt steel band conveyor 4 to carry the high temperature powder semicoke, and power consumption is less, makes investment and the running cost of high temperature powder semicoke cooling system lower; Also simplify whole cooling system, be convenient to maintenance and the installation of this cooling system.
In the high temperature powder semicoke cooling system that above-described embodiment provides, in order to guarantee the high temperature powder semicoke in surge bunker 5, enter heat-obtaining water cooler 7, the preferential selection, vertically, the outlet of surge bunker 5 is higher than the powder semicoke import of heat-obtaining water cooler 7.For length and the bearing of trend of closure casing 3 and steel band conveyor 4, in the time of need to using according to reality, charring furnace 1 arranges with the relative position relation of surge bunker 5, and the embodiment of the present invention is not done this particularly and limited.
In order to guarantee that steel band conveyor 4 can bear the high temperature of high temperature powder semicoke, in the high temperature powder semicoke cooling system that the embodiment of the present invention provides, the conveying belt of preferentially selecting steel band conveyor 4 is Stainless Steel Band.Concrete, conveying belt is 316 Stainless Steel Bands.Wherein, 316 stainless chemical composition: C≤0.08, Si≤1.00, Mn≤2.00, P≤0.035, S≤0.03, Ni:10.0-14.0, Cr:16.0-18.5, the Mo:2.0-3.0(data are mass percent).Certainly, can select other Stainless Steel Bands, as long as can bear the temperature of high temperature powder semicoke, the embodiment of the present invention is not done this particularly and is limited yet.
In order effectively to improve the cooling performance of high temperature powder semicoke, in the high temperature powder semicoke cooling system that above-described embodiment provides, heat-obtaining water cooler 7 comprises: housing and the cooling tube bundle that is positioned at housing, be provided with the import of powder semicoke, fluidized wind import, powder semicoke on housing and eject mouth, powder semicoke bottom outlet, entrance of cooling water and vapour outlet, wherein, entrance of cooling water is connected with cooling tube bundle respectively with vapour outlet, and the import of powder semicoke is connected with the outlet of surge bunker 5 by defeated burnt pipeline; This high temperature powder semicoke cooling system also comprises: the first air supply duct 6 that is connected with the fluidized wind import, the water supply line 12 that is connected with entrance of cooling water.Like this, adopt fluidized wind at the interior conveying high temperature powder of heat-obtaining water cooler 7 semicoke, simplified conveying and the lifting gear of high temperature powder semicoke; Simultaneously, in heat-obtaining water cooler 7, the high temperature powder semicoke is walked shell side, and water coolant is walked tube side, strengthened the heat exchange of high temperature powder semicoke and water coolant, improved the cooling performance of high temperature powder semicoke, water coolant has been heated up larger, water coolant can become steam, discharge from vapour outlet, can reclaim high-quality heat like this, and increase the high-quality heat that reclaims, reduce heat waste.
For the efficient recovery heat, in the high temperature powder semicoke cooling system that above-described embodiment provides, the steam-pipe 2 be connected with vapour outlet is set, by steam-pipe 2 with delivery of steam to steam pipe system, realize the recovery of high-quality energy.Fluidized wind is generally nitrogen, coal gas or carbonic acid gas etc., preferentially selects nitrogen, i.e. the first air supply duct 6 supplying nitrogens.Water coolant is generally de-mineralized water, and namely water supply line 12 is carried de-mineralized water.
For accompanying drawing 1, need to prove, the broken string situation appears in pipeline, refer to that the perpendicular pipeline of this pipeline is not communicated with, for example, steam-pipe 2 and the first air supply duct 6, the broken string situation appears in steam-pipe 2, refer to that steam-pipe 2 is not communicated with the first air supply duct 6, just there is intersection point these two pipeline present positions; Two pipelines meet at a bit, and two pipelines situation that all do not break, and refer to this two pipeline communications, for example, the first air supply duct 6 and the second air supply duct 8 meet at a bit, and two pipelines situation that do not break, and the first air supply duct 6 and the second air supply duct 8 are communicated with.
In the high temperature powder semicoke cooling system that above-described embodiment provides, the pressure of heat-obtaining water cooler 7 is 0-1MPa, and the vapor pressure that heat-obtaining water cooler 7 produces is 0.5-4MPa, and vapor temperature is 150-450 ℃, and the inflow temperature of heat-obtaining water cooler 7 is respectively 20-150 ℃.The temperature of the high temperature powder semicoke that charring furnace 1 is discharged is generally 450-1200 ℃, and the high temperature powder semicoke is after heat-obtaining water cooler 7 is cooling, and the temperature of powder semicoke is 80-100 ℃, thereby has realized the cooling of high temperature powder semicoke, can meet processing requirement.
In the high temperature powder semicoke cooling system that the embodiment of the present invention provides, the various data of cooling performance design heat-obtaining water cooler 7 that can be as required, such as the arranging of heat transfer tube, length, radius and number etc.The embodiment of the present invention is not done concrete restriction to this.
Preferably, in the high temperature powder semicoke cooling system that above-described embodiment provides, the import of powder semicoke is positioned at the top side wall of housing; The powder semicoke ejects mouth and is positioned at the roof top of housing, and powder semicoke bottom outlet is positioned at the diapire bottom of housing, and entrance of cooling water is positioned at the sidewall bottom of housing, and vapour outlet is positioned at the top side wall of housing.Like this, high temperature powder semicoke and water coolant cross-flow, further strengthened heat exchange both, thereby further improved the cooling performance of high temperature powder semicoke.Certainly, the import of powder semicoke also can be positioned at sidewall middle part or the sidewall bottom of housing, is that such cooling performance is poor.
In the high temperature powder semicoke cooling system that above-described embodiment provides, cooling complete rear powder semicoke is delivered to semicoke storage tank 11 usually.Powder semicoke and fluidized wind are discharged from the first powder semicoke outlet of heat-obtaining water cooler 7, and enter semicoke storage tank 11, the powder semicoke is discharged from the outlet of semicoke storage tank 11, fluidized wind is discharged from the air outlet of semicoke storage tank 11, wherein, outlet is positioned at the diapire bottom of semicoke storage tank 11, and air outlet is positioned at the roof top of semicoke storage tank 11.In order to realize recycling of fluidized wind, in the powder semicoke cooling system that above-described embodiment provides, the semicoke storage tank 11 of high temperature powder semicoke cooling system ejects mouth with the powder semicoke and is connected; This high temperature powder semicoke cooling system also comprises: the fly-ash separator 9 that its blast inlet is connected with the air outlet of semicoke storage tank 11, the second air supply duct 8 that is connected with the air outlet of fly-ash separator 9; Wherein, the second air supply duct 8 is communicated with the first air supply duct 6, and the first air supply duct 6 is connected with the back blow port of fly-ash separator 9 by subsidiary conduit, and the first air supply duct 6 is communicated with wind regime.Like this, powder semicoke and fluidized wind are discharged from heat-obtaining water cooler 7, and enter semicoke storage tank 11, and fluidized wind is discharged from the air outlet of semicoke storage tank 11, pass into fly-ash separator 9, wind regime, to fly-ash separator 9 back-blowings, is realized the purification of fly-ash separator 9, and the fluidized wind through purifying passes into the second air supply duct 8, and enter the first air supply duct 6, thereby enter heat-obtaining water cooler 7, realized recycling of fluidized wind, reduced the cooling cost of high temperature powder semicoke.
In the high temperature powder semicoke cooling system that above-described embodiment provides, the blast inlet of fly-ash separator 9 is connected with the air outlet of semicoke storage tank 11, have part powder semicoke and enter with the wind fly-ash separator 9, the bottom of the powder semicoke Self-duster 9 of fly-ash separator 9 inside is discharged and through coke powder cooling humidification device, is obtained fine powder (by the service water humidification, fine powder can directly go burning).Fly-ash separator 9 is generally sack cleaner.
Preferably, the high temperature powder semicoke cooling system that above-described embodiment provides, also comprise the cyclonic separator 10 that is positioned at semicoke storage tank 11, the import of this cyclonic separator 10 is connected with the air outlet of semicoke storage tank 11, the coke outlet of cyclonic separator 10 is positioned at semicoke storage tank 11, and the air outlet of cyclonic separator 10 is connected with the blast inlet of fly-ash separator 9.Like this, the wind that flows out from the air outlet of semicoke storage tank 11 enters cyclonic separator 10 is set, and carries out gas solid separation, remove the powder semicoke in wind, make the powder semicoke in wind stay in semicoke storage tank 11, realize the purification of wind, thereby be convenient to recycling of fluidized wind.
In the high temperature powder semicoke cooling system that the embodiment of the present invention provides, heat-obtaining water cooler 7 also can be other structures.Preferably, in above-mentioned high temperature powder semicoke cooling system, heat-obtaining water cooler 7 comprises: first step heat-obtaining water cooler, this first step heat-obtaining water cooler comprises the first housing and is positioned at the first cooling tube bundle of the first housing, be provided with the first powder semicoke import, the first powder semicoke outlet, the first entrance of cooling water and vapour outlet on the first housing, wherein, the first entrance of cooling water is connected with the first cooling tube bundle respectively with vapour outlet, and the first powder semicoke import is connected with the outlet of surge bunker 5 by the first defeated burnt pipeline; Second stage heat-obtaining water cooler, this second stage heat-obtaining water cooler comprises the second housing and is positioned at the second cooling tube bundle of the second housing, be provided with the second powder semicoke import, the second powder semicoke outlet, the second entrance of cooling water and the second cooling water outlet on the second housing, wherein, the second entrance of cooling water is connected with the second cooling tube bundle respectively with the second cooling water outlet, and the second powder semicoke import is connected with the first powder semicoke outlet by the second defeated burnt pipeline; This high temperature powder semicoke cooling system also comprises: the 3rd air supply duct that is connected with the blast inlet of the first defeated burnt pipeline, the first water supply line that is connected with the first entrance of cooling water, the second water supply line that is connected with the second entrance of cooling water.
In the high temperature powder semicoke cooling system that above-described embodiment provides, in first step heat-obtaining water cooler and second stage heat-obtaining water cooler, the high temperature powder semicoke is walked shell side, and water coolant is walked tube side, has effectively improved cooling performance, and, it is cooling that the powder semicoke has carried out two-stage, effectively reduced the temperature of powder semicoke, thereby improved the cooling performance of high temperature powder semicoke, make cooling complete after, the temperature of powder semicoke is lower.
In the high temperature powder semicoke cooling system that above-described embodiment provides, the pressure of first step heat-obtaining water cooler is 0-1MPa, the pressure of second stage heat-obtaining water cooler is 0-1MPa, the vapor pressure that first step heat-obtaining water cooler produces is 0.5-4MPa, vapor temperature is 150-450 ℃, and the inflow temperature of first step heat-obtaining water cooler and second stage heat-obtaining water cooler is respectively 20-150 ℃.The temperature of the high temperature powder semicoke that charring furnace 1 is discharged is generally 450-1200 ℃, the powder semicoke through first step heat-obtaining water cooler and second stage heat-obtaining water cooler cooling after, the temperature of powder semicoke is 80-100 ℃, thereby has realized the cooling of high temperature powder semicoke, can meet processing requirement.If it is cooling that the high temperature powder semicoke only carries out one-level, be difficult to the cooling of powder semicoke, can not meet processing requirement.
In order further to improve the cooling performance of high temperature powder semicoke, the high temperature powder semicoke cooling system that above-described embodiment provides, adopt upflowing, i.e. the first powder semicoke import is positioned at the diapire bottom of the first housing, the first entrance of cooling water is positioned at the top side wall of the first housing, vapour outlet is positioned at the roof top of the first housing, and the first powder semicoke outlet is positioned at the sidewall middle part of the first housing; The second powder semicoke import is positioned at the diapire bottom of the second housing, and the second entrance of cooling water is positioned at the top side wall of the second housing, and the second cooling water outlet is positioned at the roof top of the second housing, and the second powder semicoke outlet is positioned at the sidewall middle part of the second housing.Like this, high temperature powder semicoke and water coolant cross-flow, the heat exchange between having strengthened both, thus improved the cooling performance of high temperature powder semicoke.
, in 7 internal flows of heat-obtaining water cooler, prevent powder half coke laydown for the ease of the powder semicoke, in the high temperature powder semicoke cooling system that above-described embodiment provides, be provided with the first class wind inlet on the first housing, be provided with second wind transmission import on the second housing; High temperature powder semicoke cooling system also comprises: the 4th air supply duct that is connected with the first class wind inlet; The 5th air supply duct that is connected with second wind transmission import.
Preferably, in the high temperature powder semicoke cooling system that above-described embodiment provides, the number of the coke outlet of charring furnace 1 is at least two, and namely two or more coke outlets are connected with steel band conveyor 4.Like this, can realize multiple spot collection powder semicoke, increase the treatment capacity of powder semicoke, thereby improved speed of cooling; Simultaneously, also realize concentrated collection and concentrated cooling, made investment and the running cost of high temperature powder semicoke cooling system lower.
In the high temperature powder semicoke cooling system that the embodiment of the present invention provides, on the first air supply duct 6, the second air supply duct 8, water supply line 12 and steam-pipe 2, usually be provided with transferpump and variable valve, realize the conveying of fluidized wind, cooling water and steam, and the adjusting of fluidized wind, cooling water and steam.Install pipeline transferpump and variable valve that can be all, but also section of tubing arranges transferpump and variable valve, and as long as can realize the conveying of fluidized wind, cooling water and steam and regulate, the embodiment of the present invention does not limit particularly to this.
, to the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, realization in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a high temperature powder semicoke cooling system, comprising: charring furnace, the heat-obtaining water cooler that is connected with the coke outlet of described charring furnace; It is characterized in that, described high temperature powder semicoke cooling system also comprises:
The surge bunker that connects described coke outlet and described heat-obtaining water cooler;
Connect described charring furnace and described surge bunker, and form the closure casing of closed cavities;
Be positioned at described closed cavities, and from described coke outlet, carry the steel band conveyor of high temperature powder semicoke to described surge bunker.
2. high temperature powder semicoke cooling system according to claim 1, is characterized in that, the conveying belt of described steel band conveyor is Stainless Steel Band.
3. high temperature powder semicoke cooling system according to claim 1, it is characterized in that, described heat-obtaining water cooler comprises: housing and the cooling tube bundle that is positioned at described housing, be provided with the import of powder semicoke, fluidized wind import, powder semicoke on described housing and eject mouth, powder semicoke bottom outlet, entrance of cooling water and vapour outlet, wherein, described entrance of cooling water is connected with described cooling tube bundle respectively with described vapour outlet, and the import of described powder semicoke is connected with the outlet of described surge bunker by defeated burnt pipeline;
Described high temperature powder semicoke cooling system also comprises: the first air supply duct that is connected with described fluidized wind import, the water supply line that is connected with described entrance of cooling water.
4. high temperature powder semicoke cooling system according to claim 3, is characterized in that, the import of described powder semicoke is positioned at the top side wall of described housing; Described powder semicoke ejects mouth and is positioned at the roof top of described housing, and described powder semicoke bottom outlet is positioned at the diapire bottom of described housing, and described entrance of cooling water is positioned at the sidewall bottom of described housing, and described vapour outlet is positioned at the top side wall of described housing.
5. high temperature powder semicoke cooling system according to claim 3, is characterized in that, the semicoke storage tank of described high temperature powder semicoke cooling system ejects mouth with described powder semicoke and is connected;
Described high temperature powder semicoke cooling system also comprises: the fly-ash separator that its blast inlet is connected with the air outlet of described semicoke storage tank, the second air supply duct that is connected with the air outlet of described fly-ash separator;
Wherein, described the second air supply duct is communicated with described the first air supply duct; Described the first air supply duct is connected with the back blow port of described fly-ash separator by subsidiary conduit, and described the first air supply duct is communicated with wind regime.
6. high temperature powder semicoke cooling system according to claim 5, it is characterized in that, also comprise the cyclonic separator that is positioned at described semicoke storage tank, the import of described cyclonic separator is connected with the air outlet of described semicoke storage tank, the coke outlet of described cyclonic separator is positioned at described semicoke storage tank, and the air outlet of described cyclonic separator is connected with the blast inlet of described fly-ash separator.
7. high temperature powder semicoke cooling system according to claim 1, is characterized in that, described heat-obtaining water cooler comprises:
First step heat-obtaining water cooler, described first step heat-obtaining water cooler comprises the first housing and is positioned at the first cooling tube bundle of described the first housing, be provided with the first powder semicoke import, the first powder semicoke outlet, the first entrance of cooling water and vapour outlet on described the first housing, wherein, described the first entrance of cooling water is connected with described the first cooling tube bundle respectively with described vapour outlet, and described the first powder semicoke import is connected with the outlet of described surge bunker by the first defeated burnt pipeline;
Second stage heat-obtaining water cooler, described second stage heat-obtaining water cooler comprises the second housing and is positioned at the second cooling tube bundle of described the second housing, be provided with the second powder semicoke import, the second powder semicoke outlet, the second entrance of cooling water and the second cooling water outlet on described the second housing, wherein, described the second entrance of cooling water is connected with described the second cooling tube bundle respectively with described the second cooling water outlet, and described the second powder semicoke import is connected with described the first powder semicoke outlet by the second defeated burnt pipeline;
Described high temperature powder semicoke cooling system also comprises: the 3rd air supply duct that is connected with the blast inlet of described the first defeated burnt pipeline, the first water supply line that is connected with described the first entrance of cooling water, the second water supply line that is connected with described the second entrance of cooling water.
8. high temperature powder semicoke cooling system according to claim 7, is characterized in that,
Described the first powder semicoke import is positioned at the diapire bottom of described the first housing, described the first entrance of cooling water is positioned at the top side wall of described the first housing, described vapour outlet is positioned at the roof top of described the first housing, and described the first powder semicoke outlet is positioned at the sidewall middle part of described the first housing;
Described the second powder semicoke import is positioned at the diapire bottom of described the second housing, described the second entrance of cooling water is positioned at the top side wall of described the second housing, described the second cooling water outlet is positioned at the roof top of described the second housing, and described the second powder semicoke outlet is positioned at the sidewall middle part of described the second housing.
9. high temperature powder semicoke cooling system according to claim 7, is characterized in that,
Be provided with the first class wind inlet on described the first housing, be provided with second wind transmission import on described the second housing;
Described high temperature powder semicoke cooling system also comprises: the 4th air supply duct that is connected with described first class wind inlet; The 5th air supply duct that is connected with described second wind transmission import.
10. the described high temperature powder semicoke of any one cooling system according to claim 1-9, is characterized in that, the number of the coke outlet of described charring furnace is at least two.
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| CN2013103591649A CN103396811A (en) | 2013-08-16 | 2013-08-16 | High temperature powder semi-coke cooling system |
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