CN107353910A - A kind of two-part fine coal distillation system - Google Patents
A kind of two-part fine coal distillation system Download PDFInfo
- Publication number
- CN107353910A CN107353910A CN201710592710.1A CN201710592710A CN107353910A CN 107353910 A CN107353910 A CN 107353910A CN 201710592710 A CN201710592710 A CN 201710592710A CN 107353910 A CN107353910 A CN 107353910A
- Authority
- CN
- China
- Prior art keywords
- pipe
- drying tube
- outlet
- coal
- fine coal
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B15/00—Other coke ovens
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/02—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with stationary charge
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
Abstract
The invention discloses a kind of two-part fine coal distillation system, including horizontally disposed drying tube, the inlet and outlet of drying tube point are communicated with charging aperture and coal breakage storehouse, the entrance of the outlet at bottom connection destructive distillation pipe in coal breakage storehouse, destructive distillation pipe is horizontally disposed and is arranged in below drying tube, and the outlet of destructive distillation pipe is connected with the semicoke output storehouse of bottom opening；Heating pipe is provided with outside the drying tube, heating pipe is looped around outside drying tube, dries the inwall that pipe outer wall is heating pipe；The both ends of heating pipe offer air inlet and gas outlet respectively, heat accumulation type radiant tube is fixed with the outside of destructive distillation pipe, hot raw coke oven gas enters from heating pipe air inlet, enter heat accumulation type radiant tube from gas outlet after heated pipeline, the present invention uses two-piece design, and by setting heating passage to carry out warming temperature to drying tube outside drying tube, and the thermal source for heating passage is hot raw coke oven gas, saves the energy.
Description
Technical field
The invention belongs to fine coal distillation system technical field, and in particular to a kind of two-part fine coal distillation system.
Background technology
According to the prediction of coal in China data, the coal resources total amount within China vertical depth 2000m is 55697.5 hundred million
Ton, wherein the coal resources total amount detected be 10176.45 hundred million tons, it is predicted that coal resources total amount be 4,552,100,000,000
Ton.The main integrated distribution of coal resources in China in the northern area of China, wherein most coal all concentrate on the Inner Mongol, Shaanxi,
Xinjiang, Gansu, Shanxi, Ningxia etc. save (area).The coal resources of northern area is 51842.82 hundred million tons, accounts for national total coal money
The 93% of source total amount；Other each province coal resources total amounts are about 3854.67 hundred million tons, only account for national coal resources total amount
6.92%.North Shaanxi land area is about 80000km2, as development it is North Shaanxi specialty industries using centered on coal, wherein
Total land area shared by coal is 27000km2.The northern Shensi coal amount that the end of the year 2010 were detected is more than 1,150 hundred million tons, it is contemplated that total amount
At least over more than 6 times verified.Total amount exceedes Shanxi, the Inner Mongol of neighbouring province, accounts for 50% of its total amount or so, accounts for Shaanxi Province
More than the 80% of interior coal, the whole nation 14% is accounted for, coal resources sum is more than the total amount in northeast, North China and south China.The coal of northern Shensi
Charcoal resource is concentrated mainly on the Fugu of Yulin City, Shenmu County, Hengshan Mountain, deckle, the area such as pacify the border region, i.e. Shen Fu, elm are horizontal, the refreshing three big ore deposits of elm
Area.The commonly used coal-mining method in China is wall coal method at present, and yield accounts for more than the 95% of China emphasis colliery, with
Wall coal method comes into operation, and produces the ratio more and more higher of fine coal, accounts for the 70%~80% of total coal amount, but this
A little fine coal are largely used to directly burn, and directly efficiency of combustion is extremely low, and have destruction to environment.In the prior art, to powder
The drying of coal is carried out with destructive distillation in a stove, adds the content of mechanical water in dry distillation gas, and dryer section mode of heating
Heated using heat-conducting oil furnace, waste the energy.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of two-part fine coal distillation system, two-piece design,
And by setting heating passage to carry out warming temperature to drying tube outside drying tube, and the thermal source for heating passage is the waste coal of heat
Gas, save the energy.
To achieve these goals, the technical solution adopted by the present invention is a kind of two-part fine coal distillation system, including water
The flat drying tube set, the inlet and outlet point of drying tube are communicated with charging aperture and coal breakage storehouse, the outlet at bottom connection destructive distillation in coal breakage storehouse
The entrance of pipe, destructive distillation pipe is horizontally disposed and is arranged in below drying tube, and the semicoke that the outlet of destructive distillation pipe is connected with bottom opening is defeated
Export；
Heating pipe is provided with outside the drying tube, heating pipe is looped around outside drying tube, and it is heating tube to dry pipe outer wall
The inwall in road；The both ends of heating pipe offer air inlet and gas outlet respectively, and heat accumulation type radiant tube is fixed with the outside of destructive distillation pipe,
Hot raw coke oven gas enters from heating pipe air inlet, enters heat accumulation type radiant tube from gas outlet after heated pipeline.
Destructive distillation tube top portion is provided with the gas collecting apparatus for being used to collect raw coke oven gas connected with its inner chamber, and gas collecting apparatus passes through
Purifier is connected to heating pipe air inlet and heat accumulation type radiant tube air inlet.
Purifier is provided between the gas outlet of heating pipe and heat accumulation type radiant tube.
The air inlet of heating passage is provided with filter.
Coal breakage offers steam outlet at the top of storehouse.
Drying tube and destructive distillation Guan Jun offer manhole at top, and the transmission for transporting fine coal is provided with its inner chamber
Band.
The entrance of drying tube is provided with revolving top, and revolving top is arranged in the underface of charging aperture.
The entrance of destructive distillation pipe is provided with step-by-step movement material bed, and step-by-step movement material bed is arranged in the underface in coal breakage storehouse, coal breakage storehouse
Outlet at bottom is connected with coal breakage passage, and the outlet of coal breakage passage is step-by-step movement material bed.
The outlet of drying tube is connected by filter with the hot raw coke oven gas pipeline of quenching section.
Compared with prior art, the present invention at least has the advantages that, by setting heating passage outside drying tube
Warming temperature is carried out to drying tube, and the thermal source for heating passage is hot raw coke oven gas, hot raw coke oven gas is simple and easy to get, in retort section and puts out
Burnt section is available, moreover, the outlet of heating passage is connected to the entrance of heat accumulation type radiant tube, that is, the hot raw coke oven gas after exchanging heat enters
Enter heat accumulation type radiant tube and carry out combustion heat release to retort section progress heat temperature raising, make full use of raw coke oven gas, reduce other energy
Use, realize the recycling of heat energy, the cold raw coke oven gas after circulation can it is purified after be passed through in quenching section and use again, enter
Row heat energy recycles.
Further, fine coal raw material is nonflammable, and burning gases are coal gas caused by retort section itself and carry out self-desiccation
The coal gas of section, the waste of other energy is reduced using this heat supply, while without the circulation of hot semicoke, add the production of semicoke
Rate, drying and preheating stove are mutually socketed using two cylinders, between form flue heat supply raw coke oven gas and circulate inside；Destructive distillation Guan Weiyi
Cylinder connects heat accumulation type radiant tube composition, and top sets tail gas recycle and purification section, can realize the recovery of raw coke oven gas and net
Change.
Further, by being provided with coal breakage storehouse in drying tube outlet, coal breakage the top of the warehouse offers steam outlet, ensures
Mechanical water does not enter coal gas in raw coal.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In accompanying drawing：1- heating pipes；2- filters；3- manholes；4- steam outlets；5- drying tubes；6- heat accumulating type spokes
Penetrate pipe；7- destructive distillation pipes；8- step-by-step movement material beds；9- drive devices；10- support meanss；11- charging apertures；12- revolving tops；13-
Semicoke exports storehouse；14- coal gas distributing devices；16- purifiers；17- triple valves.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, a kind of two-part fine coal distillation system, including horizontally disposed drying tube 5, the disengaging of drying tube 5
Mouth point is communicated with charging aperture 11 and coal breakage storehouse 51, and the top in coal breakage storehouse 51 offers steam outlet, and the bottom in coal breakage storehouse 51 goes out
The entrance of mouth connection destructive distillation pipe 7, destructive distillation pipe 7 is horizontally disposed and is arranged in the lower section of drying tube 5, and the outlet of destructive distillation pipe 7 is connected with bottom
The semicoke output storehouse 13 of portion's opening；Also include the support meanss 10 of Dual-layer structure, wherein drying tube 5 is arranged on support meanss
10 upper strata, destructive distillation pipe 7 are arranged on the lower floor of support meanss；
Heating pipe 1 is provided with outside the drying tube 5, heating pipe 1 is looped around outside drying tube 5, and the outer wall of drying tube 5 is to add
The inwall of hot channel 1；The both ends of heating pipe 1 offer air inlet and gas outlet respectively, and the air inlet of heating passage 1 is provided with
Filter 2, the outside of destructive distillation pipe 7 are fixed with heat accumulation type radiant tube 6, and hot raw coke oven gas enters from the air inlet of heating pipe 1, heated pipe
Enter heat accumulation type radiant tube 6 from gas outlet behind road 1；Purification is provided between the gas outlet of heating pipe 1 and heat accumulation type radiant tube 6
Device 16；
The top of destructive distillation pipe 7 is provided with the gas collecting apparatus for being used to collect raw coke oven gas connected with its inner chamber, and gas collecting apparatus leads to
Cross purifier 16 and be connected to the air inlet of heating pipe 1 and the air inlet of heat accumulation type radiant tube 6；The inlet end of heat accumulation type radiant tube 6
Coal gas distributing device 14 is provided with, heats and is mounted on triple valve 17 in the output end and gas collecting apparatus of passage 1；
Drying tube 5 and destructive distillation pipe 7 offer manhole 3 at top, and are provided with its inner chamber for transporting fine coal
Conveyer belt, the entrance of drying tube 5 are provided with revolving top 12, and revolving top 12 is arranged in the underface of charging aperture 11,
The entrance of destructive distillation pipe 7 is provided with step-by-step movement material bed 8, and step-by-step movement material bed 8 is arranged in the underface in coal breakage storehouse 51, the bottom of coal breakage storehouse 51
Portion outlet is connected with coal breakage passage, and the outlet of coal breakage passage is step-by-step movement material bed 8；Revolving top 12 and step-by-step movement material bed 8 divide
Drive device 9 is not connected with.
The present invention the course of work it is as follows, first to from the feed coal that coal production goes out by screening system screen with
Afterwards, 5~15mm and the feed coal less than two kinds of sizes of 5mm are screened out, the fine coal less than 5mm is pressed into a 10mm left sides by forming technique
After right fine coal, finally together enter charging aperture 11 with 5~15mm fine coal, be sent to walking beam furnace after rotated distributing device 12 and do
Dry pipe 5, in drying process, by the hot raw coke oven gas heat drying from quenching section, the warm of drying and dehydrating is completed, wherein
The physical vapor dried out is discharged into air after filtering eventually through steam outlet 4, and the cold raw coke oven gas after circulation is by net
The heat accumulation type radiant tube 6 for changing rear portion supply retort section is used for accumulation of heat of burning, and another part is reclaimed for generating electricity or providing it
He uses thermal source；The moisture and oxygen-containing functional group for being stripped of and influenceing coal calorific value 90% or so are wherein dried, the water for drying abjection steams
Discharged after gas removing dust.
Coal after drying goes successively to destructive distillation pipe 7 by Action of Gravity Field, and 550 DEG C are heated to by gas heat-accumulated type radiant tube
Left and right, wherein coal gas a part derive from coal gas caused by itself destructive distillation, and another part is cold after dryer section circulation
Coal gas.Mixed gas after generation is through cooling down, purifying cooling of the rear portion into quenching section for high-temperature coke, another part
Supply the fuel heat accumulation type radiant tube of itself and be used for the coal charge after destructive distillation preheats, coal is thermally decomposed during destructive distillation, separates out coal gas, tar
Deng forming semicoke after product, semi-coke is made after entering the cooling of quenching section in obtained high-temperature semi-coke.
Present invention employs the structure design of two-part, and heating passage and heat accumulation type radiant tube are employed, there is work
Skill is simple and the advantages of the efficiency of heating surface is high, efficiently solves in the prior art, and drying is added with destructive distillation in a stove
The content of mechanical water in dry distillation gas, the hot raw coke oven gas of quenching section is not made full use of and dryer section mode of heating uses conduction oil
The problems such as stove heat not enough saves financial cost and the efficiency of heating surface is low.
Claims (9)
1. a kind of two-part fine coal distillation system, it is characterised in that including horizontally disposed drying tube (5), drying tube (5) are entered
Outlet point is communicated with charging aperture (11) and coal breakage storehouse (51), the entrance of the outlet at bottom connection destructive distillation pipe (7) of coal breakage storehouse (51), does
Evaporate pipe (7) to be horizontally disposed with and be arranged in below drying tube (5), the outlet of destructive distillation pipe (7) is connected with the semicoke output of bottom opening
Storehouse (13)；
Heating pipe (1) is provided with outside the drying tube (5), heating pipe (1) is looped around drying tube (5) outside, and drying tube (5) is outside
Wall is the inwall of heating pipe (1)；The both ends of heating pipe (1) offer air inlet and gas outlet, destructive distillation pipe (7) outside respectively
Heat accumulation type radiant tube (6) is fixed with, hot raw coke oven gas enters from heating pipe (1) air inlet, enters after heated pipeline (1) from gas outlet
Enter heat accumulation type radiant tube (6).
2. a kind of two-part fine coal distillation system according to claim 1, it is characterised in that set at the top of destructive distillation pipe (7)
There is the gas collecting apparatus for being used to collect raw coke oven gas connected with its inner chamber, gas collecting apparatus is connected to heating by purifier (16)
Pipeline (1) air inlet and heat accumulation type radiant tube (6) air inlet.
A kind of 3. two-part fine coal distillation system according to claim 1, it is characterised in that the outlet of heating pipe (1)
Purifier (16) is provided between mouth and heat accumulation type radiant tube (6).
A kind of 4. two-part fine coal distillation system according to claim 1, it is characterised in that the air inlet of heating passage (1)
Mouth is provided with filter (2).
5. a kind of two-part fine coal distillation system according to claim 1, it is characterised in that opened at the top of (51) in coal breakage storehouse
Provided with steam outlet.
6. a kind of two-part fine coal distillation system according to claim 1, it is characterised in that drying tube (5) and destructive distillation pipe
(7) manhole (3) is offered at top, and the conveyer belt for transporting fine coal is provided with its inner chamber.
A kind of 7. two-part fine coal distillation system according to claim 1, it is characterised in that the entrance of drying tube (5)
Revolving top (12) is provided with, revolving top (12) is arranged in the underface of charging aperture (11).
A kind of 8. two-part fine coal distillation system according to claim 1, it is characterised in that the entrance of destructive distillation pipe (7)
Step-by-step movement material bed (8) is provided with, step-by-step movement material bed (8) is arranged in the underface of coal breakage storehouse (51), coal breakage storehouse (51) outlet at bottom
Coal breakage passage is connected with, the outlet of coal breakage passage is step-by-step movement material bed (8).
9. a kind of two-part fine coal distillation system according to claim 1, it is characterised in that the outlet of drying tube (5) leads to
Filter (2) is crossed to connect with the hot raw coke oven gas pipeline of quenching section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710592710.1A CN107353910A (en) | 2017-07-19 | 2017-07-19 | A kind of two-part fine coal distillation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710592710.1A CN107353910A (en) | 2017-07-19 | 2017-07-19 | A kind of two-part fine coal distillation system |
Publications (1)
| Publication Number | Publication Date |
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| CN107353910A true CN107353910A (en) | 2017-11-17 |
Family
ID=60285250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710592710.1A Pending CN107353910A (en) | 2017-07-19 | 2017-07-19 | A kind of two-part fine coal distillation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679673A (en) * | 2019-01-24 | 2019-04-26 | 山西国控环球工程有限公司 | A kind of low order coal heat decomposition stove and its classified utilization technique |
| CN110157458A (en) * | 2019-06-27 | 2019-08-23 | 榆林学院 | A kind of microwave-heating system and its application method |
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