CN205099627U - Fixed bed pressurization continuous gasification system water gas system - Google Patents
Fixed bed pressurization continuous gasification system water gas system Download PDFInfo
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- CN205099627U CN205099627U CN201520689783.9U CN201520689783U CN205099627U CN 205099627 U CN205099627 U CN 205099627U CN 201520689783 U CN201520689783 U CN 201520689783U CN 205099627 U CN205099627 U CN 205099627U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model discloses a fixed bed pressurization continuous gasification system water gas system, including gasification unit, two cyclone, sensible heat recovery ware, air cooler, water cooler, electrostatic precipitator, the gasification unit is including gasifier, clamp cover steam pocket, feed bin, blending tank and fan, it all feeds through with the gasifier to press from both sides cover steam pocket, feed bin, blending tank and fan, give vent to anger end and two cyclone's of gasifier inlet end intercommunication, the inlet end intercommunication of two cyclone's give vent to anger end and sensible heat recovery ware, the inlet end intercommunication of the give vent to anger end and the air cooler of sensible heat recovery ware, seven ends of play of air cooler and the inlet end intercommunication of water cooler, the give vent to anger end and the electrostatic precipitator's of water cooler inlet end intercommunication. The utility model discloses fundamentally solves the environmental issue of gasification of fixed bed intermittent type and ordinary pressure fixed bed pure oxygen (oxygen boosting) continuous gasification, and efficiency of carbon con version is high, gasification efficiency is high, effectively reduce the power consumption, water consumes, and is energy -conserving high -efficient.
Description
Technical field
The utility model relates to a kind of water gas two-stage gasifier system, is specifically related to a kind of fixed bed pressurization continuous gasification water gas system.
Background technology
Along with the fast development of China's economy, especially Air Pollutant Emission problem is increasingly serious for environmental issue, and the environmental requirement to Coal Chemical Industry of national and each ministries and commissions and local government all reaches a new height.Fixed-bed intermittent gasification is put in " industry restructuring guidance list " restricted, and many enterprises start to transform fixed-bed intermittent gasification, realize continuous gasification using pure oxygen or oxygen enrichment as vaporized chemical.Although solve the problem of blowing air discharge, atmospheric gasification start-stop car and accident emptying, can only uncontrollable discharges because of hypotony, and gaseous emission problem does not solve at all.
The aspect ratio of traditional intermittent gasification furnace body is lower, and the residence time of gas in stove is short, and make gasification reaction insufficient, in lime-ash, carbon residue content is high, and gasification efficiency is low.Simultaneously the calorific loss taken away of blowing air is comparatively large, and cold gas efficiency is low.
There is following problem in traditional atmospheric gasification water gas technique: (1) water-gas dedusting adopts the gentle scrubber tower directly contacted of water with cooling, causes a large amount of circulating water for gasification, and current consumption is large, and fresh water consumption is large; (2) the water-gas pressure of atmospheric gasification production is low, and follow-up needs boosting is as Chemicals unstripped gas, and compression work is relatively large; (3) atmospheric gasification intensity is low, and vapourizing furnace quantity is many, and supporting water-gas gas storage facility (gas holder), circulating water for gasification process and roots blower etc., flow process is loaded down with trivial details, occupation of land is large.
Utility model content
The purpose of this utility model is that environmental-protecting performance in the gasification of traditional fixed bed atmospheric pressure is poor, production efficiency is low, comprehensive energy consumption is large, it is high to invest, take up an area the problems such as large in order to solve, and provides a kind of environmental friendliness, efficient energy-saving, the fixed bed of saving occupation of land pressurizes continuous gasification water gas system.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of fixed bed pressurization continuous gasification water gas system, it is characterized in that: include gasification unit, cyclone separator, sensible heat recoverer, air cooler, water cooler, electrostatic precipitator, described gasification unit includes vapourizing furnace, chuck drum, feed bin, mixing tank and blower fan; Described chuck drum, feed bin, mixing tank are all communicated with vapourizing furnace with blower fan; The outlet side of described vapourizing furnace is communicated with the inlet end of cyclone separator, the described outlet side of cyclone separator is communicated with the inlet end of sensible heat recoverer, the outlet side of described sensible heat recoverer is communicated with the inlet end of air cooler, seven ends that go out of described air cooler are communicated with the inlet end of water cooler, and the outlet side of described water cooler is communicated with the inlet end of electrostatic precipitator.
Preferably, described feed bin is communicated in vapourizing furnace upper end.
Preferably, described mixing tank and blower fan are communicated in vapourizing furnace lower end.
Preferably, described sensible heat recoverer is communicated with chuck drum.
Compared with prior art, the beneficial effects of the utility model are:
(1) environmental issue of fixed-bed intermittent gasification and atmospheric fixed bed pure oxygen (oxygen enrichment) continuous gasification is fundamentally solved, environmentally friendly.
A () the present invention is fixed bed pressurization continuous gasification, eliminate the blowing air in fixed-bed intermittent gasification, solve atmospheric fixed bed pure oxygen or oxygen-enriched continuous gasification shutting down and accidental state uncontrollable discharge problem simultaneously, fundamentally solve gaseous emission problem.
B () gasification temperature is high, reusable edible after phlegma desalination, without sewage discharge, environmental friendliness.
C () adopts double-cyclone dust collector and electrostatic precipitator technology, adopt sensible heat recoverer, compound air cooling and interval water-cooled coal gas cooling technology, cancel scrubber tower and the circulating water for gasification treatment unit of atmospheric gasification, discharge without gas making sewage.
D () be gas processed continuously, without the air-blaster run continuously during normal production, and effective control device noise.
(2) efficiency of carbon conversion is high, gasification efficiency is high, effectively reduce power consumption, water consumption, efficient energy-saving.
A () is by increasing vapourizing furnace aspect ratio and using pure oxygen gasification, coal gas residence time in burner hearth is increased, and reaction is more abundant, carbon residue content low (carbon residue < 5%) in lime-ash, effectively reduce furnace roof carry-over simultaneously, reduce feed coal consumption.
B () be intermittent gasification relatively, because blowing air takes away calorific loss comparatively large (comprising the latent heat of the sensible heat of blowing air, latent heat and coal dust), continuous gasification does not have blowing air, and cold gas efficiency improves greatly.
C () pressurized gasification, effectively reduce the compression work of follow-up workshop section, power load greatly reduces.Eliminate the power consumption that air-blaster, gas making circulating hot water and water supply pump produce simultaneously.
D () cancels water wash column, cancel circulating water for gasification horizontal flow basin, effectively reduces water consumption.
E () comprehensive energy consumption relative fixed-bed intermittent gasification reduction by 20 ~ 30%, relatively atmospheric fixed bed pure oxygen continuous gasification reduces by 10 ~ 15%.
(3) gasification intensity is large, and single stove gas forming amount is 2.5 ~ 3 times, intermittent gasification stove, and be atmospheric fixed bed pure oxygen continuous gasification 1.3 ~ 1.6 times, identical scale gasification stove quantity greatly reduces.
(4) identical scale gasification stove quantity reduces, and cancels atmospheric gasification supporting water-gas gas storage facility (gas holder), circulating water for gasification process and roots blower etc., effective investment reduction and occupation of land simultaneously.
(5) flow process is succinct, and easy handling, Automatic Control, increases work efficiency.
Accompanying drawing explanation
Fig. 1 is connected state schematic diagram of the present utility model.
In figure: 1, feed bin; 2, vapourizing furnace; 3, mixing tank; 4, cyclone separator; 5, sensible heat recoverer; 6, air cooler; 7, water cooler; 8, electrostatic precipitator; 9, chuck drum; 10, blower fan.
Embodiment
For making to have a better understanding and awareness constitutional features of the present utility model and effect of reaching, coordinating detailed description in order to preferred embodiment and accompanying drawing, being described as follows:
A kind of fixed bed pressurization continuous gasification water gas system, include gasification unit, cyclone separator 4, sensible heat recoverer 5, air cooler 6, water cooler 7, electrostatic precipitator 8, described gasification unit includes vapourizing furnace 2, chuck drum 9, feed bin 1, mixing tank 3 and blower fan 10; Described chuck drum 9, feed bin 1, mixing tank 3 are all communicated with vapourizing furnace 2 with blower fan 10; Described feed bin 1 is communicated in vapourizing furnace 2 upper end; Described mixing tank 3 and blower fan 10 are communicated in vapourizing furnace 2 lower end; The outlet side of described vapourizing furnace 2 is communicated with the inlet end of cyclone separator 4, the outlet side of described cyclone separator 4 is communicated with the inlet end of sensible heat recoverer 5, described sensible heat recoverer 5 is communicated with chuck drum 9, the outlet side of described sensible heat recoverer 5 is communicated with the inlet end of air cooler 6, seven ends that go out of described air cooler 6 are communicated with the inlet end of water cooler 7, and the outlet side of described water cooler 7 is communicated with the inlet end of electrostatic precipitator 8.
The method of native system continuous gasification water gas is utilized to be:
A: anthracite block coal, coke or blue charcoal enter automatic coke feeding machine by feed bin 1, self-timing, quantitatively adds vapourizing furnace 2 top coal lock, and the punching press of coal lock is to time identical with vapourizing furnace 2 pressure, and open the lower valve of coal lock, coal enters in vapourizing furnace 2 by gravity;
B: the oxygen divided from sky and from pipe network and self-produced steam, enter in mixing tank 3 through metering and proportion adjustment and mix, temperature controls to 150 ~ 200 DEG C and enter furnace bottom ash slag blanket by the even gas distribution of fire grate bottom vapourizing furnace 2, zone of oxidation and reducing zone is entered successively after ash bed heat exchange, carry out redox reaction and produce water-gas, water-gas, more successively upwards through destructive distillation layer and drying layer, is sent by vapourizing furnace 2 top when temperature is down to 450 ~ 550 DEG C;
C: lime-ash absorbs temperature after sensible heat through vaporized chemical and is down to 200 ~ 250 DEG C, periodically enters grey lock hopper by fire grate;
D: the coal gas after gasification, dedusting is carried out through cyclone separator 4, water-gas after cyclone separator 4 enters sensible heat recoverer 5, temperature is down to about 150 DEG C, by-product low-pressure steam simultaneously, the water-gas of 150 DEG C is through air cooler 6 and water cooler 7, and temperature is down to 40 DEG C, again by electrostatic precipitator 8, after dedusting, dustiness is lower than 20mg/Nm
3water-gas be sent to follow-up workshop section.
More than show and describe ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; the just principle of the present utility model described in above-described embodiment and specification sheets; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (4)
1. a fixed bed pressurization continuous gasification water gas system, it is characterized in that: include gasification unit, cyclone separator (4), sensible heat recoverer (5), air cooler (6), water cooler (7), electrostatic precipitator (8), described gasification unit includes vapourizing furnace (2), chuck drum (9), feed bin (1), mixing tank (3) and blower fan (10); Described chuck drum (9), feed bin (1), mixing tank (3) are all communicated with vapourizing furnace (2) with blower fan (10); The outlet side of described vapourizing furnace (2) is communicated with the inlet end of cyclone separator (4), the outlet side of described cyclone separator (4) is communicated with the inlet end of sensible heat recoverer (5), the outlet side of described sensible heat recoverer (5) is communicated with the inlet end of air cooler (6), the outlet side of described air cooler (6) is communicated with the inlet end of water cooler (7), and the outlet side of described water cooler (7) is communicated with the inlet end of electrostatic precipitator (8).
2. fixed bed pressurization continuous gasification water gas system as claimed in claim 1, is characterized in that: described feed bin (1) is communicated in vapourizing furnace (2) upper end.
3. fixed bed pressurization continuous gasification water gas system as claimed in claim 1, is characterized in that: described mixing tank (3) and blower fan (10) are communicated in vapourizing furnace (2) lower end.
4. fixed bed pressurization continuous gasification water gas system as claimed in claim 1, is characterized in that: described sensible heat recoverer (5) is communicated with chuck drum (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689783.9U CN205099627U (en) | 2015-09-08 | 2015-09-08 | Fixed bed pressurization continuous gasification system water gas system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520689783.9U CN205099627U (en) | 2015-09-08 | 2015-09-08 | Fixed bed pressurization continuous gasification system water gas system |
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| CN205099627U true CN205099627U (en) | 2016-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105802672A (en) * | 2016-05-30 | 2016-07-27 | 河南昌昱实业有限公司 | Method for production of 1.0-2.2MPa water gas by fixed bed gasification |
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- 2015-09-08 CN CN201520689783.9U patent/CN205099627U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105802672A (en) * | 2016-05-30 | 2016-07-27 | 河南昌昱实业有限公司 | Method for production of 1.0-2.2MPa water gas by fixed bed gasification |
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