CN106520162A - Prefabricating system for synthetic gas utilization ceramsite additives - Google Patents
Prefabricating system for synthetic gas utilization ceramsite additives Download PDFInfo
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- CN106520162A CN106520162A CN201510844476.8A CN201510844476A CN106520162A CN 106520162 A CN106520162 A CN 106520162A CN 201510844476 A CN201510844476 A CN 201510844476A CN 106520162 A CN106520162 A CN 106520162A
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Abstract
The invention discloses a prefabricating system for synthetic gas utilization ceramsite additives. The system comprises a gas generation system and an additive prefabricating system. The gas generation system comprises a two-stage gas generator, a tar collector, a cyclone dust collector, an emergent cut-off device and a front furnace water-sealed tank. The additive prefabricating system comprises a combustion furnace induced draft fan, a combustion furnace, an additive dryer, an additive pulverizing mill, an additive sifter and an additive bin. The qualified dry powdery additives can be obtained by drying, grinding and screening blocky or pastry additives, and the production requirement for coal ash sintering ceramsite can be met. Meanwhile, the two-stage gas generator is adopted as heat source equipment, the gas calorific value is increased, the gasification efficiency is improved, and environmental pollution is reduced.
Description
Technical field
The present invention relates to waste emissions technical field of comprehensive utilization, and in particular to a kind of coal gas comprehensive utilization pottery
Grain additive prefabrication system.
Background technology
From artificial lightweight haydite in 1913 after U.S.'s appearance, countries in the world are actively opened according to actual conditions
Send out with flyash as main raw material(s), produced using sintering process (boiler-turbine CCS, rotary kiln, sintering machine)
Substitute rubble, the artificial lightweight haydite of the non-renewable resources such as cobble, be widely used in high building structure,
The building traffic industry such as concrete component, highway, inside and outside wall board, and be developed for administering city dirt
The biofilter material in the fields such as water, industrial wastewater, the agricultural soil transformation of the way.
Introduce according to Ltech Corp of Britain data, the haydite of its production is used for per cube of structural concrete about
20～25 pounds, higher than 2～3 times of local rubble price, but due to structural light-weight concrete compared with normal concrete from
Mitigate 25% again, drying shrinkage reduces 35%, and thermal expansion factor reduces 42%, and thermal conductivity factor reduces 62%, and heatproof reaches
To thousand degree or so, then it is 5～10% to save overall investment, therefore abroad using relatively common.
Haydite applies later at home, and the every annual of yield is in 4,000,000 m at the end of last century3.Major part is viscous
Soil, haydites of book structure, minority is lytag, and obtains certain achievement, such as Tianjin lake water road 16
Shear wall structure House with Big Room Openning building, No. 22 shear wall structure office buildings in Shanghai City Langao road etc..
In sum, sintering ceramsite of fly ash due to its lightweight, high-strength, wear-resisting, impervious, antidetonation, sound absorption,
Insulation etc. characteristic and be widely used in each field.
During production sintering ceramsite of fly ash, need to add the additives such as gangue, mine tailings, clay as internal combustion
Agent and bonding agent, qualified additive should be presented dry powdered, and the additive obtained in production practices
Raw material is often block or pasty state, it is therefore desirable to additive is carried out it is prefabricated, to meet sintering ceramsite of fly ash
Production requirement.
The content of the invention
In view of this, it is an object of the invention to provide a kind of coal gas comprehensively utilizes haydite additive prefabrication system,
Additive raw material can be pre-processed, to meet the Production requirement of sintering ceramsite of fly ash.
For reaching above-mentioned purpose, the present invention provides following technical scheme：
A kind of coal gas comprehensively utilizes haydite additive prefabrication system, prefabricated including gas generating system and additive
System；
The gas generating system includes two stage type gas generating furnace, tar well, cyclone dust collectors, tight
Anxious cutter and stokehold water sealed tank, the two stage type gas generating furnace include top belljar valve, top retort section
Body of heater, bottom gasification section body of heater and bottom ash-pan, the retort section body of heater is connected with tar well, described
Gasification section body of heater is connected with cyclone dust collectors, and the outlet conduit of the tar well and cyclone dust collectors converges
Stokehold water sealed tank is introduced by emergency cut-off device afterwards；
The additive prefabrication system includes combustion furnace air-introduced machine, combustion furnace, additive dryer, additive
Flour mill, additive sifter and addition feed bin, the gas exit pipeline and combustion furnace of the stokehold water sealed tank
Connection, the wind pipe of the combustion furnace air-introduced machine are connected with combustion furnace, the hot air outlet of the combustion furnace
Pipeline is connected with additive dryer, and the drier outlet of the additive dryer is connected with additive flour mill,
The powder outlet of the additive flour mill is connected with additive sifter, the powder of the additive sifter
Outlet is connected with addition feed bin.
Further, the gas generating system also includes drum and gas generator air-introduced machine, the gasification section
Body of heater is provided with water holding jacket, and the drum be connected with grid is softened, the water holding jacket entrance of gasification section body of heater with go out
Mouth is connected with drum respectively, and the steam outlet of drum is divided into two-way, introduces two stage type gas generating furnace all the way
Wind pipe as sealing gland steam, another road and gas generator air-introduced machine introduces two stage type gas after converging
Generation furnace bottom is used as gasifying agent.
Further, the gas generating system also includes residual gas flashback tank and water seal feedwater piping, industry
Grid by water seal feedwater piping respectively with residual gas flashback tank, ash-pan, emergency cut-off device and stokehold water
Sealed cans connect.
Further, the additive dryer is roller drying machine.
Further, the additive sifter is spin vibration sieve.
Further, the powder outlet of the additive sifter is connected with addition feed bin by single-screw conveyer.
The beneficial effects of the present invention is：
1st, the present invention be provided with additive dryer to the additive of block or pasty state (as gangue, mine tailings,
Clay) drying and processing is carried out, then arranging additive flour mill carries out grinding, grinding to the additive dried
Additive afterwards is sieved through additive sifter, is obtained qualified dry powdery additive, can be met powder
The Production requirement of coal ash sintering ceramsite.
2nd, using two stage type gas generating furnace as heat resource equipment, two stage type gas generating furnace includes the present invention
Portion's retort section body of heater and bottom gasification section body of heater；The tar that top retort section body of heater is formed is low temperature distillation product,
Its mobility preferably, is collected by tar well and is centrally disposed；Bottom gasification section body of heater is generated
Gasification gas do not contain tar；Gasification gas is semiwater gas with the mixed gas that dry distillation gas is formed, and
Heating gas, it is more pure, without tar, it is not required to cooling and purifying.Therefore, the present invention improves calorific value of gas
With gasification efficiency, and environmental pollution is reduced.
Description of the drawings
In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, the present invention provides following attached
Figure is illustrated：
Structural representations of the Fig. 1 for gas generating system；
Structural representations of the Fig. 2 for additive prefabrication system.
Specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
The coal gas comprehensive utilization haydite additive prefabrication system of the present invention, including gas generating system and additive
Prefabrication system.
Structural representations of the Fig. 1 for gas generating system, as illustrated, gas generating system includes two-part
Gas generator 11, tar well 12, cyclone dust collectors 13, emergency cut-off device 14 and stokehold water sealed tank
15, the two stage type gas generating furnace 11 include top belljar valve 111, top retort section body of heater 112, under
Portion gasification section body of heater 113 and bottom ash-pan 114, the retort section body of heater 112 are connected with tar well 12,
The gasification section body of heater 113 is connected with cyclone dust collectors 13, the tar well 12 and cyclone dust collectors
13 outlet conduit introduces stokehold water sealed tank 15 by emergency cut-off device 14 after converging.
The gas generating system also includes drum 16 and gas generator air-introduced machine 17, the gasification section body of heater
113 are provided with water holding jacket, and the drum 16 is connected with grid 18 is softened, the water holding jacket of gasification section body of heater 113
Entrance and exit is connected with drum 16 respectively, and the steam outlet of drum 16 is divided into two-way, introduces two all the way
Stage type gas generating furnace 11 is used as the wind pipe of sealing gland steam, another road and gas generator air-introduced machine 17
11 bottom of two stage type gas generating furnace is introduced after converging is used as gasifying agent.
The gas generating system also includes residual gas flashback tank 19 and water seal feedwater piping, industrial grid
10 by water seal feedwater piping respectively with residual gas flashback tank 19, ash-pan 114, emergency cut-off device 14 and stove
Front water sealed tank 15 connects.
Coal enters two stage type gas generating furnace 11 from two groups of belljar valves 111 of furnace roof coal bunker Jing first, and coal is in destructive distillation
Section body of heater 112 is dried and prolonged low temperature distillation through sufficiently, gradually forms semicoke, into gasification section
Body of heater 113, red-hot semicoke are fully reacted in the gasifying agent that gasification section body of heater 113 and furnace bottom are blasted, Jing Guolu
Interior reducing zone, oxide layer and form coal ash, by grate drive be automatically drained out from bottom ash-pan 114.
During low temperature distillation, the coal gas generated based on fugitive constituent precipitation is referred to as dry distillation gas, group to coal
Into the top coal gas of two stage type gas generating furnace 11, the 40% of total coal gas amount is accounted for, its calorific value is higher
(6700kJ/Nm3) temperature relatively low (120 DEG C or so), and contain substantial amounts of tar.It is this in retort section body of heater 112
The tar of formation is low temperature distillation product, and preferably, collected by tar well 12 is carried out its mobility
Centrally dispose.In gasification section body of heater 113, red-hot semicoke and gasifying agent (air, water vapour) through reduction,
The coal gas that the series of chemical such as oxidation are generated, referred to as gasification gas, constitute two stage type gas generating furnace 11
Bottom coal gas, account for the 60% of total coal gas amount, the relatively low (6400kJ/Nm of its calorific value3), temperature is higher
(450 DEG C or so).Because coal is in 112 low temperature distillation ample time of retort section body of heater, into gasification section body of heater 113
Coal become semicoke, therefore the gasification gas for generating does not contain tar.Gasification gas Jing cyclone dust collectors 13 are removed
Mixed gas Jing emergency cut-offs device 14 is formed with dry distillation gas after dirt and stokehold water sealed tank 15 goes burning for carrying
Supplying heat source.
Gasification section body of heater 113 is provided with water leg, the softened water in drum 16 is introduced into water leg, is passed through
This self-produced water vapour, a water vapour part are used as sealing gland steam, another part and gas generator air-introduced machine 17
The air mixing of introducing is as gasifying agent.
As a result of the hot detar technique of two section type, the coal gas for obtaining is semiwater gas to gas generating system,
And heating gas, it is more pure, without tar, it is not required to cooling and purifying.Gas composition is CO, H2、CH4、
The combustible components such as CnHm and CO2、N2Etc. non-combustible composition, and do not react completely in gasification
Combustion adjuvant oxygen and the water vapour not decomposed completely.Gas generator adopts stone coal, is not required to crush；
Coal gas is not required to gas holder storage for continuously generating and using.
Structural representations of the Fig. 2 for additive prefabrication system, as illustrated, additive prefabrication system includes combustion
Burn stove air-introduced machine 21, combustion furnace 22, additive dryer 23, the screening of additive flour mill 24, additive
Device 25 and addition feed bin 26, the gas exit pipeline of the stokehold water sealed tank 15 are connected with combustion furnace 22, institute
21 wind pipes for stating combustion furnace air-introduced machine are connected with combustion furnace 22, the hot air outlet of the combustion furnace 22
Pipeline is connected with additive dryer 23, drier outlet and the additive grinding of the additive dryer 23
Machine 24 connects, and the powder outlet of the additive flour mill 24 is connected with additive sifter 25, described to add
The powder outlet of charging sifter 25 is connected with addition feed bin 26.
The additive dryer 23 is roller drying machine, and the additive sifter 25 is spin vibration sieve.
The powder outlet of the additive sifter 25 is connected with addition feed bin 26 by single-screw conveyer.
The air mixed combustion that coal gas is introduced with combustion furnace air-introduced machine 21 in combustion furnace 22 produces hot-air,
From the additive (such as gangue, mine tailings, clay) of the hot-air of combustion furnace 22 and block or pasty state and
Flowing to additive dryer 23 carries out heat exchange, and the dried additive of Jing hot-airs is from additive dryer 23
Outlet flow to additive flour mill 24 carries out grinding, and the additive after grinding is sieved through additive sifter 25
Separate qualified dry powdery additive and flow into addition feed bin 26.
Finally illustrate, preferred embodiment above only to illustrate technical scheme and unrestricted,
Although being described in detail to the present invention by above preferred embodiment, those skilled in the art
It should be appreciated that various changes can be made in the form and details to which, without departing from the present invention
Claims limited range.
Claims (6)
1. a kind of coal gas comprehensively utilizes haydite additive prefabrication system, it is characterised in that：There is system including coal gas
System and additive prefabrication system；
The gas generating system includes two stage type gas generating furnace, tar well, cyclone dust collectors, tight
Anxious cutter and stokehold water sealed tank, the two stage type gas generating furnace include top belljar valve, top retort section
Body of heater, bottom gasification section body of heater and bottom ash-pan, the retort section body of heater is connected with tar well, described
Gasification section body of heater is connected with cyclone dust collectors, and the outlet conduit of the tar well and cyclone dust collectors converges
Stokehold water sealed tank is introduced by emergency cut-off device afterwards；
The additive prefabrication system includes combustion furnace air-introduced machine, combustion furnace, additive dryer, additive
Flour mill, additive sifter and addition feed bin, the gas exit pipeline and combustion furnace of the stokehold water sealed tank
Connection, the wind pipe of the combustion furnace air-introduced machine are connected with combustion furnace, the hot air outlet of the combustion furnace
Pipeline is connected with additive dryer, and the drier outlet of the additive dryer is connected with additive flour mill,
The powder outlet of the additive flour mill is connected with additive sifter, the powder of the additive sifter
Outlet is connected with addition feed bin.
2. coal gas according to claim 1 comprehensively utilizes haydite additive prefabrication system, it is characterised in that：
The gas generating system also includes drum and gas generator air-introduced machine, and the gasification section body of heater is provided with folder water
Set, the drum are connected with softening grid, the water holding jacket entrance and exit of gasification section body of heater respectively with drum
Connection, the steam outlet of drum are divided into two-way, introduce two stage type gas generating furnace all the way and are used as sealing gland steam,
The wind pipe of another road and gas generator air-introduced machine introduces two stage type gas generating furnace bottom after converging and is used as
Gasifying agent.
3. coal gas according to claim 1 comprehensively utilizes haydite additive prefabrication system, it is characterised in that：
The gas generating system also includes residual gas flashback tank and water seal feedwater piping, and industrial grid passes through water
Envelope feedwater piping is connected with residual gas flashback tank, ash-pan, emergency cut-off device and stokehold water sealed tank respectively.
4. coal gas according to claim 1 comprehensively utilizes haydite additive prefabrication system, it is characterised in that：
The additive dryer is roller drying machine.
5. coal gas according to claim 1 comprehensively utilizes haydite additive prefabrication system, it is characterised in that：
The additive sifter is spin vibration sieve.
6. coal gas according to claim 1 comprehensively utilizes haydite additive prefabrication system, it is characterised in that：
The powder outlet of the additive sifter is connected with addition feed bin by single-screw conveyer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510844476.8A CN106520162A (en) | 2015-11-27 | 2015-11-27 | Prefabricating system for synthetic gas utilization ceramsite additives |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510844476.8A CN106520162A (en) | 2015-11-27 | 2015-11-27 | Prefabricating system for synthetic gas utilization ceramsite additives |
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| Publication Number | Publication Date |
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| CN106520162A true CN106520162A (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510844476.8A Pending CN106520162A (en) | 2015-11-27 | 2015-11-27 | Prefabricating system for synthetic gas utilization ceramsite additives |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960803A (en) * | 2020-08-27 | 2020-11-20 | 国电科学技术研究院有限公司 | Production process for directly preparing ceramsite in pulverized coal combustion power generation process |
-
2015
- 2015-11-27 CN CN201510844476.8A patent/CN106520162A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960803A (en) * | 2020-08-27 | 2020-11-20 | 国电科学技术研究院有限公司 | Production process for directly preparing ceramsite in pulverized coal combustion power generation process |
| CN111960803B (en) * | 2020-08-27 | 2022-04-08 | 国电科学技术研究院有限公司 | Production process for directly preparing ceramsite in pulverized coal combustion power generation process |
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Application publication date: 20170322 |