CN102295957A - Continuous slag removal and pressure release apparatus for pressurized gasifier - Google Patents
Continuous slag removal and pressure release apparatus for pressurized gasifier Download PDFInfo
- Publication number
- CN102295957A CN102295957A CN2011102162488A CN201110216248A CN102295957A CN 102295957 A CN102295957 A CN 102295957A CN 2011102162488 A CN2011102162488 A CN 2011102162488A CN 201110216248 A CN201110216248 A CN 201110216248A CN 102295957 A CN102295957 A CN 102295957A
- Authority
- CN
- China
- Prior art keywords
- valve
- slag
- continuous
- pressure release
- pressurized
- 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.)
- Pending
Links
Images
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
Provided is a continuous slag removal and pressure release apparatus for a pressurized gasifier. The apparatus comprises a continuous blanking unit and a pressure release and dedusting unit; a continuous blanking tank is connected with a material gathering funnel having a valve and with the pressure release and dedusting unit through a pipeline having a pneumatic valve. According to the invention, high temperature slag enters from a gasifier into the continuous blanking unit which is composed of three slag removal tanks which work discontinuously and are parallel and concentric, and one of the three slag removal tanks starts to work closely after another slag removal tank stops working, thereby realizing continuous blanking; when the height of slag reaches a height limit, double layer double layer valves on the slag removal tanks are closed successively, a decompression valve is opened, harmful gas and dust enter into the pressure release and dedusting unit, a blow-down valve is opened under the condition of normal pressure, residual harmful gas is eliminated, the blow-down valve and the decompression valve are closed successively after a time delay, valves at the bottom of the slag removal tanks are opened, and high temperature slag is discharged for further treatment. The apparatus provided in the invention has the advantages of simple construction and low cost, and enables continuous discharging of materials to be realized under the condition that pressure in the gasifier is guaranteed to be stable.
Description
Technical field
The present invention is a kind of continuous discharging slag and pressure relief device of pressurized-gasification furnace, belongs to dried residue extraction mechanism technical field.
Background technology
The smooth discharge of high temperature coal gasification furnace bottom slag is very the key link of fine coal pressurization dense phase transporting gasification under the pressurized conditions, because the feature of vapourizing furnace, gasification temperature up to 900 ℃～1 100 ℃, operating gas velocity can reach 8～17 m/s, and circulation ratio is up to 5O～100, the solid flux is greater than 20 kg/m .s
At present in the vapourizing furnace working process, discharge the high temperature sludge temperature more than 800 degree, the cooling of high temperature sludge is mainly taked high temperature sludge is fallen into the water at present, water has certain height, become in the water seal as the medium that seals coal gas, water has been realized extinguishing of high temperature sludge like this, and its coal gas of being with can not overflowed yet when extinguishing slag, thereby finishes the slag process of putting out.But there is following problem in this technology:
1, the heat of high temperature sludge is taken away by water, causes energy dissipation, the power consumption that has also increased recirculated water simultaneously;
2, water puts out in the slag process objectionable impurities and dissolves in the water, has also strengthened environmental pollution, has increased the water treatment difficulty.Put out slag simultaneously and need consume big water gaging, beyond doubt the significant wastage of water resources;
3, after slag was extinguished by water, its activity reduced greatly, and is very unfavorable to the utilization once more after it;
4, present hearth deslagging equipment typical case adopts dragveyer, and its investment is big, operation and maintenance cost is high.
This has just proposed new requirement to the cooling process of vapourizing furnace high temperature sludge.These require roughly to can be summarized as the following aspects: 1, operating pressure is up to nearly 2 Mpa, and the row's of giving end slag system brings difficulty, the release when needing taking into account system sealing and deslagging; 2, in order to keep the activity of slag, help the synthetic of cement and other materials and reduce the water pollution, require to carry out dry cinder discharging; 3, end slag temperature height, discharge capacity is big, requires the exchange capability of heat of cold slag system good, and preferably can utilize its physics sensible heat; 4, owing to be the industrialness device, require the reliability height.
Based on this, we have developed the novel dried slag technology of putting out in conjunction with vapourizing furnace production technique and dried requirement of putting out slag.Present technique and device core are made up of 2 parts: continuous blanking device, pressure release cleaning apparatus.Present technique is simple in structure, low price, and working cost is low, and according to on-the-spot actual, the slag sensible heat can be further reclaimed at the rear portion.
Summary of the invention
Deal with problems:
The invention solves that traditional water puts out that the water that the slag technology caused pollutes, the problem of water waste and resource and energy dissipation.The present invention has adopted A, and two deslagging jars of B wheel changes jobs and realizes continuous blanking, and C does standby, perhaps A, B, any 2 non-stop runs of C, the 3rd do standby, perhaps A, B, the equal non-stop run of C, standby each other, one is withdrawed from when breaking down automatically therein, finishes non-stop run for other 2.Difficult problems such as conventional dry slag discharging device complex structure, investment are big, working cost height have been solved.
The present invention adopts connecting tube that the deslagging filling is connected with the pressure release cleaning apparatus, and in the connecting tube immersion water, dust is fallen into the water, and what toxic gas was mild burns at sky lamp place, has guaranteed pressure release cleaning apparatus reliability of operation.
Technical scheme:
Implementation of the present invention is: blanking unit is divided A, B, C three cover pressure release deslagging jars continuously, A, and the non-stop run step by step of B covering device, the C covering device is done standby.Before high temperature sludge enters in the A device by vapourizing furnace, open the time-delay of flap valve earlier and for some time open push-pull valve again, after slag reached the height that level gage sets, push-pull valve was closed in the pass, close the flap valve again after time-delay for some time, delay time is set as required.Open the pressure release valve that is communicated with A device and pressure release dust removing units subsequently, discharge obnoxious flavour and dust in the A device, treat to open when A device internal pressure approaches normal pressure the blow down valve on it, pour stack gas residual toxic gas and dust are removed.After finishing purge, successively shut-down purge valve and pressure release valve are opened following flap valve time-delay for some time of A bottom of device and are opened the lower plugboard valve again, make and finish dedusting, the red slag of pressure release deflated enters red slag waste heat recovery operation.
Beneficial effect:
1, adopts this device, can reduce pollution and waste, protected environment water.
2, this device can be recycled the sensible heat of high temperature sludge, has realized energy-saving and cost-reducing.
3, this device can avoid water law to put out the activity that slag sharply cools off influences slag, to the disadvantageous difficult problem of the later use of slag.
4, purge with stack gas by successive and prevent that deslagging from forming volatile mixed gas in irritating, avoided the pollution of toxic and harmful, get rid of potential safety hazard, guarantee production safety steady running environment.After the normal operation of system, owing to realized the full-automatic of ash discharge process, avoided untimely ash discharge situation in manual ash discharge process, changed operating environment, working efficiency obviously improves, and economic benefit and social benefit obviously promote.
5, can solve that residue extraction mechanism adopts the dragveyer investment big at the bottom of the traditional burner, operation, the problem that maintenance cost is high.
Description of drawings
Accompanying drawing 1 is the main TV structure synoptic diagram of the dried slag discharging device of pressurized-gasification furnace.
Accompanying drawing 2 is plan structure synoptic diagram of continuous blanking tank.
1. push-pull valve 4. flap valves 5. level gages 6. pressure warning units 7. blow down valves 8. pressure release valves 9. ash buckets 10. water level gauges 11. ash bucket valves 1 2. hydrofuges ash valve 13. intake-outlets 14. dedusting water tanks 15. are assisted 19. times flap valves of 16. days lamp 17. remittance slag bucket 18. baiting valves of source of the gas valves, 20. lower plugboard valves on the vapourizing furnace 2. continuous blanking tanks 3..
Embodiment
1, as shown in Figure 1, before vapourizing furnace 1 work, guarantee that earlier each valve is in closing condition, vapourizing furnace 1 is started working, and opens flap valve 4, open push-pull valve 3 behind the time-delay certain hour, slag begins to fall into deslagging jar 2 from vapourizing furnace 1, and level gage 5 is started working simultaneously, when the slag in the deslagging jar 2 reaches the height of level gage 5 settings, last push-pull valve 3 cuts out automatically, and flap valve 4 cuts out subsequently.
2, open pressure release valve 8 obnoxious flavoures and powder subsequently and enter the pressure release dust removing units, the preliminary interior toxic gas of deslagging jar of getting rid of, open blow down valve 7 subsequently, charge into stack gas, residual toxic gas in the slag is discharged, the part dust of being discharged lands at ash bucket 9 places, ash bucket 9 is with its collection, all the other dusts dissolve in the water of dedusting water tank 14 and are deposited to the bottom, and the coal gas that the coal gas effusion water surface and auxiliary source of the gas valve 14 provide mixes, and guarantee to reach flammable concentration, by the burning back emptying of normal burner 15 places, if normal burner extinguishes, then close auxiliary source of the gas valve automatically, and the processing of reporting to the police.
3, after toxic gas was discharged in the deslagging jar 2, successively shut-down purge valve 7 and pressure release valve 8 were opened down flap valve 21, open lower plugboard valve 20 subsequently, slag utilizes self gravitation to fall into to converge slag bucket 17, wait slag all to fall after, successively close lower plugboard valve 20 and following flap valve 21.
4, the workflow between three deslagging jars is carried out with the circulation of AB jar, the C jar as standby for example is: three deslagging jars are divided into A jar B jar C jar, valve cuts out under the A jar, last valve is opened, slag falls into the A jar, the height that reaches level gage 5 settings is closed valve on the A jar, the B jar repeats the action of A jar, and when the B jar charged into slag, the A jar entered dust removal process, after finishing slag is discharged, this moment, the B jar quantity of slag reached the height that level gage 5 is set, and closed valve on the B jar, and the B jar enters dust removal process, so the circulation of AB jar is carried out, and the C jar is as standby.Perhaps A, B, any 2 non-stop runs of C, the 3rd do standby, perhaps A, B, the equal non-stop run of C, standby each other, one is withdrawed from when breaking down automatically therein, finishes non-stop run for other 2.
5, behind the certain hour, handle the dust of ash bucket 9 and dedusting water tank 14 bottoms, its process is discharged economical dry coke quenching auxiliary for open the manual valve of ash bucket 9 and hydrofuge ash valve 12 when vapourizing furnace quits work with dust.By the liquid level that water level gauge 10 detects in the dedusting water tank 14, when liquid level is against regulation, open the manual valve of intake-outlet 13, carry out draining or retaining.
Claims (6)
1. the continuous discharging slag of a pressurized-gasification furnace and pressure relief device is characterized in that: comprise continuous blanking unit, pressure release dust removing units.
2. the continuous discharging slag of pressurized-gasification furnace as claimed in claim 1 and pressure relief device is characterized in that: blanking unit is connected with the remittance hopper that has valve continuously, is connected with the pressure release dust removing units by the pipeline that has pressure release valve (8).
3. the continuous discharging slag of pressurized-gasification furnace as claimed in claim 1 and pressure relief device is characterized in that: described continuous blanking unit is by A, B, three deslagging jars of C (2) arranged concentric in parallel is formed, deslagging jar (2) interruption work, the working hour is end to end, thereby realizes continuous blanking.
4. the continuous discharging slag of pressurized-gasification furnace as claimed in claim 1 and pressure relief device is characterized in that: A in the described continuous blanking unit, two deslagging jars of B (2) wheel change jobs and realize continuous blanking, C does standby, perhaps A, B, any 2 non-stop runs of C, the 3rd do standby, perhaps A, B, the equal non-stop run of C, standby each other, one is withdrawed from when breaking down automatically therein, finishes non-stop run for other 2.
5. the continuous discharging slag of pressurized-gasification furnace as claimed in claim 1 and pressure relief device, it is characterized in that: described deslagging jar (2) comprises push-pull valve (3), lower plugboard valve (20), flap valve (4), following flap valve (19), level gage (5), blow down valve (7), pressure warning unit (6).
6. the continuous discharging slag of pressurized-gasification furnace as claimed in claim 1 and pressure relief device, it is characterized in that: described pressure release cleaning apparatus is by dedusting water tank (14), pressure release valve (8), hydrofuge ash valve (12), intake-outlet (13), auxiliary source of the gas valve (14), it lamp (16), ash bucket (9), ash bucket valve (11), water level gauge (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102162488A CN102295957A (en) | 2011-07-31 | 2011-07-31 | Continuous slag removal and pressure release apparatus for pressurized gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102162488A CN102295957A (en) | 2011-07-31 | 2011-07-31 | Continuous slag removal and pressure release apparatus for pressurized gasifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102295957A true CN102295957A (en) | 2011-12-28 |
Family
ID=45356634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102162488A Pending CN102295957A (en) | 2011-07-31 | 2011-07-31 | Continuous slag removal and pressure release apparatus for pressurized gasifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102295957A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046395A (en) * | 2014-02-15 | 2014-09-17 | 和楷哲 | Solid-gas mixed material pressure continuous-reduction technology and system and equipment therefor |
| CN111978993A (en) * | 2020-07-17 | 2020-11-24 | 新奥科技发展有限公司 | Pressure reducing device and coke discharging system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2316319Y (en) * | 1997-11-27 | 1999-04-28 | 金群英 | Slag-removing device without stopping furnace |
| JP2005120167A (en) * | 2003-10-15 | 2005-05-12 | Mitsubishi Heavy Ind Ltd | Coal gasifying furnace |
| CN1721511A (en) * | 2005-07-01 | 2006-01-18 | 煤炭科学研究总院北京煤化工研究分院 | Process for pressurized gasification of dry coal fines |
-
2011
- 2011-07-31 CN CN2011102162488A patent/CN102295957A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2316319Y (en) * | 1997-11-27 | 1999-04-28 | 金群英 | Slag-removing device without stopping furnace |
| JP2005120167A (en) * | 2003-10-15 | 2005-05-12 | Mitsubishi Heavy Ind Ltd | Coal gasifying furnace |
| CN1721511A (en) * | 2005-07-01 | 2006-01-18 | 煤炭科学研究总院北京煤化工研究分院 | Process for pressurized gasification of dry coal fines |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046395A (en) * | 2014-02-15 | 2014-09-17 | 和楷哲 | Solid-gas mixed material pressure continuous-reduction technology and system and equipment therefor |
| CN111978993A (en) * | 2020-07-17 | 2020-11-24 | 新奥科技发展有限公司 | Pressure reducing device and coke discharging system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103557526B (en) | Dangerous waste and medical waste incinerator complexes and incinerating method thereof | |
| CN102094104B (en) | Process for removing dust from steelmaking converter flue gas by pure dry method and recovering heat energy synchronously, and waste heat boiler | |
| CN102168186B (en) | Magnesium smelting reduction deslagging and residual heat recycling device and process | |
| WO2021042699A1 (en) | Double-melt bath organic solid waste blowing gasification device | |
| CN203833895U (en) | System for preparing synthesis gas by using feed coal | |
| CN107327848A (en) | Mobile garbage handles car | |
| CN109103538A (en) | A kind of Non-oxygen pyrolytic processing recovery system of waste lithium cell positive plate | |
| WO2011153726A1 (en) | Method and fully closed equipment system for turning municipal sludge into gas, liquid and solid fuel | |
| CN102295957A (en) | Continuous slag removal and pressure release apparatus for pressurized gasifier | |
| CN207552149U (en) | A kind of oil sludge handles recycling system | |
| CN103849705A (en) | Waste heat recycling and fine particle purifying system and method of converter gas | |
| CN106867559B (en) | A kind of multistage cracking quantity-produced oil refining method | |
| CN104100980B (en) | A kind of small-sized rubbish charing combustion furnace | |
| CN102277179B (en) | Economic dry quenching device | |
| CN108384565A (en) | Waste old, plastics low temperature tiny structure cracker | |
| CN202226831U (en) | Continuous deslagging and pressure relief device of pressurized gasification furnace | |
| CN106635099A (en) | Waste tire vacuum cracking system | |
| CN216947078U (en) | Short-flow thermal state steel slag treatment system | |
| CN204022766U (en) | A kind of hard coal segmentation pyrolysis sub-prime use device without discharge | |
| CN104949130A (en) | Pyrolytic gasifier of three-segment structure | |
| CN203904283U (en) | Pressure reducing device used in continuous pressure-relief slagging of slag tapping pressurized gasifier | |
| CN104031688A (en) | Continuous pressure-relief deslagging method and system of liquid-state pressure-boosting deslagging gasifier | |
| CN208904180U (en) | A kind of Non-oxygen pyrolytic processing recyclable device of waste lithium cell positive plate | |
| CN203866265U (en) | Continuous pressure relief and slag discharge system for slag tapping of pressure gasification furnace | |
| CN208327911U (en) | Waste old, plastics low temperature tiny structure cracker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Anyang City, Henan province 450000 jinshuiqu Nanyang Lushengdi building 541 Applicant after: Shenghuo Technology (Henan) Co., Ltd. Applicant after: Li Zhipeng Address before: 450000 Henan Province, Zhengzhou city Nanyang Lushengdi building 541 Applicant before: Shenghuo Technology (Henan) Co., Ltd. Applicant before: Li Zhipeng |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111228 |