CN206494908U - A kind of side slag-draining device for fixed bed slag tap gasification furnace - Google Patents
A kind of side slag-draining device for fixed bed slag tap gasification furnace Download PDFInfo
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- CN206494908U CN206494908U CN201720116394.6U CN201720116394U CN206494908U CN 206494908 U CN206494908 U CN 206494908U CN 201720116394 U CN201720116394 U CN 201720116394U CN 206494908 U CN206494908 U CN 206494908U
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- 239000002893 slag Substances 0.000 title claims abstract description 381
- 238000002309 gasification Methods 0.000 title claims abstract description 74
- 238000001816 cooling Methods 0.000 claims abstract description 126
- 238000007599 discharging Methods 0.000 claims abstract description 29
- 230000005611 electricity Effects 0.000 claims abstract description 23
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 14
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- 239000003818 cinder Substances 0.000 claims description 35
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 34
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 27
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 21
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 50
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Abstract
The utility model is related to a kind of side slag-draining device for fixed bed slag tap gasification furnace, it is characterised in that：The primary furnace includes burning burner, slag area chuck and slag area flame retardant coating, the slagging channel is provided with slag inlet and slag notch, the slag inlet connects the lower inside surface of slag area flame retardant coating, the slag notch connects dreg cooling chamber, electricity auxiliary hot slag-discharging device is installed on the slagging channel, the dreg cooling chamber includes inner cylinder and outer barrel, the upper port of the inner cylinder shrouds slag notch, the upper portion side wall of the outer barrel and slag bucket is respectively connected with feed tube, the lower sides of the outer barrel and slag bucket are respectively connected with drain pipe, the utility model avoids the too high harm to gasifying furnace nozzle system of slag liquid level, improve system run all right, reduce maintenance cost；Prevent slag from being condensed when by slagging channel；The fuel gas of gasification furnace is avoided to draw trouble into generation blast in dreg cooling chamber accidentally.
Description
Technical field
The utility model is related to coal gasification field, more particularly to a kind of for fixed bed slag tap gasification furnace
Side slag-draining device.
Background technology
Coal gasification process be using coal or coal tar and other carbon-containing fuels as raw material, with oxygen (air, oxygen-enriched or pure oxygen),
Vapor or hydrogen etc. make gasifying agent (or gasifying medium), under the high temperature conditions by chemically reacting coal or coal tar and other
Combustible constituent in carbon-containing fuel is converted into the process of coal gas.The device that coal or coal tar and other carbon-containing fuels are gasified is claimed
For gasification furnace, by the form of gasification furnace, coal gasification process can be divided into three major types, i.e. fixed bed gasification (or moving bed), stream
Change bed gasification and entrained flow gasification, fixed bed gasification technology gasifies according to the different fixed bed dry ash extractions that are divided into of deslagging mode again
Technology and fixed bed slag tap gasification technology (also known as fixed bed slag gasification technology).
Patent No. CN205368268U, the applying date is 2016.01.27, discloses a kind of BGL broken coals slag pressurized gasification
Cinder notch under stove, it is characterised in that including the cast, copper body (1) with slag passage, cooling water coil is provided with cast, copper body (1)
(2), cooling water coil (2) is risen to the entrance of slag passage in flaring cone angle helix by the outlet of slag passage.The patent
By being cooled down to lower cinder notch, the deformation of lower cinder notch and surface tortoise under the conditions of solution high temperature, condition of high voltage and reducing atmosphere
Problem is split, gasification furnace normal operation for a long time is ensured, improves the service life of lower cinder notch.
Patent No. CN201971797U, the applying date is 2010.12.30, discloses a kind of fixed bed slag gasification furnace
Slag-discharging device, including slag-discharging device body, supporting plate are placed on the row of offering in the middle part of the slag-discharging device outer body, the slag-discharging device body
Cinder notch, slag-drip opening includes upper opening and lower openings, it is characterised in that：Coil pipe is embedded with the slag-discharging device body, it is described
Coil pipe is helical structure, is from top to bottom spiraled around slag-drip opening, under upper opening coiled coil to the slag-drip opening of slag-drip opening
Portion openend, the coil pipe is connected close to upper opening one end of slag-drip opening with feed tube, and the coil pipe is under slag-drip opening
Portion's open at one end is connected with drain pipe.The patent by high-thermal conductive metal coil pipe from top to bottom coiled coil in slag-discharging device body
It is interior, cooling fluid is cooled down the highest temperature area above slag-drip opening at first, cooling effect is obvious.
It is exactly slag mouthful molten slag liquid level and deslagging that above-mentioned two kinds of slag tapping boilers of patent are most rambunctious, slightly not
It is careful, it may result in lower cinder notch and block, the rise of slag liquid level causes nozzle clarinet, so as to stop in emergency, molten slag removal digs the week of stove
Phase, at 7-14 days, considerably increases the maintenance cost of fixed bed slag tapping boiler.
Patent No. CN203144120U, the applying date is 2013.03.15, discloses a kind of boiling chloridizing furnace continuously closed
Slag-draining device, including the scum pipe being connected with the slag-drip opening of chlorination furnace, the other end of scum pipe are connected with guide wire, guiding
Pipe side wall is provided with nitrogen interface, it is characterised in that the continuous closed slag-discharging device also includes closed deslagging pans, deslagging
Tundish bottom is connected by pipeline with slag tank top, and the pipeline is provided with the top of push-pull valve, deslagging pans and slag
Tank top, which is respectively arranged with, takes out waste gas interface, and guide wire is connected by connecting tube with deslagging pans；It is provided with guide wire
High-temperature valve, high-temperature valve is located between nitrogen interface and connecting tube.The patent can effectively reduce the harmful gas being mixed in clinker
Body, it is to avoid the diffusion of mixed gas in chlorination furnace clinker dust and slag.
Slag is easily condensed when by guide wire in above-mentioned patent, is easily blocked guide wire, is prevented liquid slag from smooth
Dreg cooling chamber is entered by guide wire.
Patent No. CN202369557U, the applying date is 2011.12.22, discloses a kind of slagging tap for ash agglomerating gasification furnace
Device, it is characterised in that：The deslagging device by accident valve, sealed valve, Quench slag bucket, upper sealing valve, slag-removing hopper, under it is close
Seal valve, slag bath and spiral of slagging tap composition, the accident valve, sealed valve, Quench slag bucket, upper sealing valve, slag-removing hopper, lower sealing
Valve passes sequentially through bolt connection from top to bottom, and the accident valve is bolted with gasification furnace bottom, and the slag bath is located at
The ash dropping hopper bottom, the slag bath bottom install described in slag tap spiral；Chilled water pressurising water inlet is set on the Quench slag bucket
Mouth and pressure relief opening.The high-temperature ash that the patent is discharged using water Quench mode to gasification furnace is cooled down, and reduces high temperature sludge
Infringement to equipment, reduces operating cost, has prevented blockage problem, improves the environment at the scene of slagging tap.
Gasification furnace fuel gas in above-mentioned patent is easily accessible generation blast in Quench slag bucket and draws trouble, makes fixed bed liquid
Slag-tap furnace can not safe and stable operation at atmospheric pressure or elevated pressure.
Utility model content
The purpose of this utility model is to overcome the above-mentioned problems in the prior art to be used for fixed bed liquid there is provided one kind
The side slag-draining device of state deslagging gasification furnace, the device can prevent the too high harm to gasifying furnace nozzle system of slag liquid level,
System run all right is improved, maintenance cost is reduced, liquid slag can pass through guide wire and enter dreg cooling chamber；Slag is passing through
Computer heating control temperature during guide wire, enables liquid slag to pass through guide wire and enters dreg cooling chamber；Ensure the top gas of Quench slag bucket
Body spatial volume is as far as possible small, and fuel gas, which enters, is less likely to occur blast in Quench slag bucket, enable fixed bed slag tapping boiler
Safe and stable operation at atmospheric pressure or elevated pressure.
To achieve the above object, the technical solution adopted in the utility model is as follows.
A kind of side slag-draining device for fixed bed slag tap gasification furnace, including primary furnace, slagging channel, dreg cooling chamber
And slag bucket, it is characterised in that：The primary furnace includes burning burner, slag area chuck and slag area flame retardant coating, and the deslagging leads to
Road is provided with slag inlet and slag notch, and the slag inlet connects the lower inside surface of slag area flame retardant coating, the slag notch connection
Dreg cooling chamber, direction of the slag inlet along slag notch, which has, is provided with the auxiliary heat row of electricity on certain inclined angle alpha, the slagging channel
Slag device, the dreg cooling chamber includes inner cylinder and outer barrel, and the upper port of the inner cylinder shrouds slag notch, the lower port of the inner cylinder with
Outer barrel is connected, and the outer barrel lower end sets slag bucket, and is connected by lock slag valve with slag bucket, and the lower end of the slag bucket is provided with slag
Pond, and be connected by residual cake valve with slag bath, the upper portion side wall of the outer barrel and slag bucket is respectively connected with feed tube, the outer barrel and slag
The lower sides of bucket are respectively connected with drain pipe.
The auxiliary hot slag-discharging device of electricity includes silicon nitride scum pipe, alundum tube, heating tube and electrode, and the slagging channel goes out
In cinder notch end insertion silicon nitride scum pipe, scum pipe is set, and the heating tube is arranged on silicon nitride in the silicon nitride scum pipe
In the gap of scum pipe and alundum tube, electrode is installed in the heating tube.
There is certain angle β, the β to be 50- for the center line of the slagging channel and the vertical center line of primary furnace
70°。
The α is 10-15 °.
The slag inlet is set to a bell shape, and horn mouth opening angle is γ, and the γ is 20-30 °.
It is provided with lower cinder notch on the slag notch, the lower cinder notch and dreg cooling chamber's center line have certain angle δ, described
δ is 75-80 °.
The drain pipe is arranged on along 1/3rd of the upward total height in outer barrel lower end.
Filter membrane is provided with the slag bath, slag bath is isolated into thick slag bath and filter, the thick slag by the filter membrane
Dragveyer is provided with pond, the filter is connected with feed tube, the thick slag bath is connected with drain pipe.
Using the utility model has the advantage of.
1st, by installing slagging channel on primary furnace lower sides, slagging channel has certain inclined angle alpha, uses for reference
The deslagging technique of furnace cupola, eliminates connecting short section and annular burner that existing slag tapping boiler is used to maintain slag liquid level,
The too high harm to gasifying furnace nozzle system of slag liquid level is avoided, can reduce while slag tap process advantage is kept and be
System investment, improves system run all right, reduces maintenance cost；By setting the auxiliary hot slag-discharging device of electricity, control on slagging channel
Temperature is maintained at 1300 DEG C or so in side slagging channel processed, prevents slag from being condensed when by slagging channel, enables liquid slag
Pass through lower cinder notch and enter dreg cooling chamber；By structure of the dreg cooling chamber using inner cylinder and outer barrel, dreg cooling chamber is set to be connected with gasification furnace
Upper gas space volume it is as far as possible small, to avoid the fuel gas of gasification furnace from drawing trouble into producing blast in dreg cooling chamber accidentally,
Ensure that fixed bed slag tapping boiler being capable of safe and stable operation at atmospheric pressure or elevated pressure.
2nd, have that product density is big, thermal shock resistance is good by alundum tube, acid and alkali-resistance, resistance to erosion, service life length, do not allow mutability
Shape, and silicon nitride scum pipe has that intensity height, hardness height, good wearability, high temperature resistant, corrosion-resistant, heat resistanceheat resistant shock resistance be good, heat conduction system
Count the superior functions such as big and good in oxidation resistance.
3rd, 50-70 ° of angle is set to by the center line of slagging channel and the vertical center line of primary furnace, due to gravity
Factor, make the slag into side scum pipe be easy to flow to lower cinder notch.
4th, the direction by the tube wall of slagging channel from slag inlet along slag notch has 10-15 ° of inclination angle, increases high temperature
Slag after gasification flows to the mobility of slag-drip opening.
5th, 20-30 ° of bell shape is set to by slag inlet, it is to avoid the completely plugged slag-drip opening of the bed of material of addition makes to melt
Slag can not flow out, and can also prevent the unreacted carbon residue of furnace bottom from being brought into together with slag in dreg cooling chamber.
6th, there is 75-80 ° of angle by lower cinder notch and dreg cooling chamber's center line, it is consistent with α angle lapping tilted directions, make to enter side
The slag of slagging channel is easy to flow to lower cinder notch.
7th, it is arranged on by drain pipe along 1/3rd of the upward total height in outer barrel lower end, makes to maintain water seal in dreg cooling chamber
At 1/3rd of bottom, it is ensured that slag conveniently changes water condensation while dreg cooling chamber's water seal.
8th, slag bath is isolated into by thick slag bath and filter by filter membrane, filter is connected with feed tube, thick slag bath is with going out
Liquid pipe is connected, and dreg cooling chamber is with after natural cooling in the water inflow slag bath in slag bucket, dreg cooling chamber and slag are supplied by filtering membrane filtration again
Water needed for bucket, so recycles water resource, it is to avoid the waste of water resource, cost-effective.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the auxiliary hot slag-discharging device structure of the utility model electricity is intended to.
Marked in figure：1st, burn burner, and 2, slag area chuck, 3, slag area flame retardant coating, 4, slagging channel, 5, deslagging mistake
Bridge, 6, the auxiliary hot slag-discharging device of electricity, 7, lower cinder notch, 8, dreg cooling chamber, 9, lock slag valve, 10, slag bucket, 11, residual cake valve, 12, slag bath, 13, mistake
Filter membrane, 14, dragveyer, 15, silicon nitride scum pipe, 16, alundum tube, 17, heating tube, 18, electrode.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1-2, a kind of side slag-draining device for fixed bed slag tap gasification furnace, including primary furnace, row
Slag passage 4, dreg cooling chamber 8 and slag bucket 10, the primary furnace include burning burner 1, slag area chuck 2 and slag area flame retardant coating 3, institute
State slagging channel 4 and be provided with slag inlet and slag notch, the slag inlet connects the lower inside surface of slag area flame retardant coating 3, described
Slag notch connects dreg cooling chamber 8, and direction of the slag inlet along slag notch has pacifies on certain inclined angle alpha, the slagging channel 4
Equipped with the auxiliary hot slag-discharging device 6 of electricity, the dreg cooling chamber 8 includes inner cylinder and outer barrel, and the upper port of the inner cylinder shrouds slag notch, described
The lower port of inner cylinder is connected with outer barrel, and the outer barrel lower end sets slag bucket 10, and is connected by lock slag valve 9 with slag bucket 10, described
The lower end of slag bucket 10 is provided with slag bath 12, and is connected by residual cake valve 11 with slag bath 12, the upper side of the outer barrel and slag bucket 10
Wall is respectively connected with feed tube, and the lower sides of the outer barrel and slag bucket 10 are respectively connected with drain pipe, the feed tube and drain pipe
On be mounted on valve, can be with the folding of manual control valve, so as to control the water capacity in dreg cooling chamber 8 and slag bucket 10.
By oxygen and water vapour hair of the particle diameter 5-50mm coal cinder in gasification furnace primary furnace 8 with being sent into from burning burner 1
The a series of physical chemical reaction such as raw burning, gasification, pyrolysis, ash melting, the synthesis gas of generation enters stove from primary furnace top
Thorax, to syngas outlet after heat exchange, the bottom high-temperature region lime-ash of primary furnace 8 is melted at high temperature, and the molten slag of generation passes through
The inclination angle of refractory material is flowed to slagging channel 4 in stove, and molten slag is flow at deslagging gap bridge 5 by slagging channel 4, temperature
Reduction, by the auxiliary hot computer heating control of slag-discharging device 6 of electricity in molten condition, can then pass through slag notch into dreg cooling chamber 8, dreg cooling chamber
8 set up certain water seal liquid level when system is normally run, and residual cake valve 11 is closed, and lock slag valve 9 is opened, and is quenched into dreg cooling chamber 8
Cold slag is entered in slag bucket 10 by dreg cooling chamber 8 and deposited, while warm sludge produces heat effect to the water in cold slag 8, passes through control
Liquid level and temperature that slag bath 12 processed is drawn the water into dreg cooling chamber 8 to control dreg cooling chamber 8 to remain certain, deslagging lead to, and slag can not in 4
Full of whole space, it is ensured that gasification furnace is connected with the inner cylinder of dreg cooling chamber 8, it is ensured that tapping process can be smoothed out, while dreg cooling chamber 8
Inner/outer tube forms certain fluid-tight, it is to avoid pressure oscillation causes fuel gas to enter generation blast in dreg cooling chamber and draws trouble in gasification furnace,
The present apparatus can be run under high pressure, when high pressure conditions need deslagging, closed lock slag valve 9, gasification system is isolated with slag bucket 10, so
The pressure of slag bucket 10 is laid down by relief port afterwards, then lime-ash is discharged into by slag bath 12 by residual cake valve 11, slag bucket 10 can by from
Water is drawn in slag bath 12 to be rinsed, and after deslagging is finished, closes residual cake valve 11, the pressure of slag bucket 10 is risen into the pressure of dreg cooling chamber 8,
Lower lock slag valve 9 is opened again, you can enter and receive scoriform state, by installing slagging channel 4, slagging channel on primary furnace lower sides
4 have certain inclined angle alpha, have used for reference the deslagging technique of furnace cupola, and eliminating existing slag tapping boiler is used to maintain slag liquid
The connecting short section and annular burner of position, it is to avoid the slag liquid level too high harm to gasifying furnace nozzle system, are keeping liquid
System investments can be reduced while deslagging process advantage, system run all right is improved, reduces maintenance cost；By in deslagging
Set temperature in the auxiliary hot slag-discharging device 6 of electricity, control side slagging channel 4 to be maintained at 1300 DEG C or so on passage, prevent slag in warp
Condensed when crossing slagging channel 4, liquid slag is passed through lower cinder notch and enter dreg cooling chamber；By dreg cooling chamber 8 using inner cylinder and outside
The structure of cylinder, the upper gas space volume for making dreg cooling chamber 8 be connected with gasification furnace is as far as possible small, to avoid the fuel gas of gasification furnace
Draw trouble into producing blast in dreg cooling chamber 8 accidentally, it is ensured that fixed bed slag tapping boiler being capable of safety and stability at atmospheric pressure or elevated pressure
Operation, the inner cylinder of dreg cooling chamber 8 is mainly used in reducing the volume of dreg cooling chamber 8 connected with gasification furnace, caused by preventing that furnace pressure is too high
Fuel gas string has blast to draw trouble to dreg cooling chamber 8.When system is normally run, inner cylinder upper space has part water vapour generation.
Embodiment 2
As shown in Figure 1-2, a kind of side slag-draining device for fixed bed slag tap gasification furnace, including primary furnace, row
Slag passage 4, dreg cooling chamber 8 and slag bucket 10, the primary furnace include burning burner 1, slag area chuck 2 and slag area flame retardant coating 3, institute
State slagging channel 4 and be provided with slag inlet and slag notch, the slag inlet connects the lower inside surface of slag area flame retardant coating 3, described
Slag notch connects dreg cooling chamber 8, and direction of the slag inlet along slag notch has pacifies on certain inclined angle alpha, the slagging channel 4
Equipped with the auxiliary hot slag-discharging device 6 of electricity, the dreg cooling chamber 8 includes inner cylinder and outer barrel, and the upper port of the inner cylinder shrouds slag notch, described
The lower port of inner cylinder is connected with outer barrel, and the outer barrel lower end sets slag bucket 10, and is connected by lock slag valve 9 with slag bucket 10, described
The lower end of slag bucket 10 is provided with slag bath 12, and is connected by residual cake valve 11 with slag bath 12, the upper side of the outer barrel and slag bucket 10
Wall is respectively connected with feed tube, and the lower sides of the outer barrel and slag bucket 10 are respectively connected with drain pipe, the feed tube and drain pipe
On be mounted on valve, can be with the folding of manual control valve, so as to control the water capacity in dreg cooling chamber 8 and slag bucket 10.
The auxiliary hot slag-discharging device 6 of electricity includes silicon nitride scum pipe 15, alundum tube 16, heating tube 17 and electrode 18, the row
In the slag notch end insertion silicon nitride scum pipe 15 of slag passage 4, scum pipe 15 is set in the silicon nitride scum pipe 15, it is described to add
Heat pipe 17 is arranged on silicon nitride scum pipe 15 with the gap of alundum tube 16, electrode 18 is installed in the heating tube 17.
By oxygen and water vapour hair of the particle diameter 5-50mm coal cinder in gasification furnace primary furnace 8 with being sent into from burning burner 1
The a series of physical chemical reaction such as raw burning, gasification, pyrolysis, ash melting, the synthesis gas of generation enters stove from primary furnace top
Thorax, to syngas outlet after heat exchange, the bottom high-temperature region lime-ash of primary furnace 8 is melted at high temperature, and the molten slag of generation passes through
The inclination angle of refractory material is flowed to slagging channel 4 in stove, and molten slag is flow at deslagging gap bridge 5 by slagging channel 4, temperature
Reduction, by the auxiliary hot computer heating control of slag-discharging device 6 of electricity in molten condition, can then pass through slag notch into dreg cooling chamber 8, dreg cooling chamber
8 set up certain water seal liquid level when system is normally run, and residual cake valve 11 is closed, and lock slag valve 9 is opened, and is quenched into dreg cooling chamber 8
Cold slag is entered in slag bucket 10 by dreg cooling chamber 8 and deposited, while warm sludge produces heat effect to the water in cold slag 8, passes through control
Liquid level and temperature that slag bath 12 processed is drawn the water into dreg cooling chamber 8 to control dreg cooling chamber 8 to remain certain, deslagging lead to, and slag can not in 4
Full of whole space, it is ensured that gasification furnace is connected with the inner cylinder of dreg cooling chamber 8, it is ensured that tapping process can be smoothed out, while dreg cooling chamber 8
Inner/outer tube forms certain fluid-tight, it is to avoid pressure oscillation causes fuel gas to enter generation blast in dreg cooling chamber and draws trouble in gasification furnace,
The present apparatus can be run under high pressure, when high pressure conditions need deslagging, closed lock slag valve 9, gasification system is isolated with slag bucket 10, so
The pressure of slag bucket 10 is laid down by relief port afterwards, then lime-ash is discharged into by slag bath 12 by residual cake valve 11, slag bucket 10 can by from
Water is drawn in slag bath 12 to be rinsed, and after deslagging is finished, closes residual cake valve 11, the pressure of slag bucket 10 is risen into the pressure of dreg cooling chamber 8,
Lower lock slag valve 9 is opened again, you can enter and receive scoriform state, by installing slagging channel 4, slagging channel on primary furnace lower sides
4 have certain inclined angle alpha, have used for reference the deslagging technique of furnace cupola, and eliminating existing slag tapping boiler is used to maintain slag liquid
The connecting short section and annular burner of position, it is to avoid the slag liquid level too high harm to gasifying furnace nozzle system, are keeping liquid
System investments can be reduced while deslagging process advantage, system run all right is improved, reduces maintenance cost；By in deslagging
Set temperature in the auxiliary hot slag-discharging device 6 of electricity, control side slagging channel 4 to be maintained at 1300 DEG C or so on passage, prevent slag in warp
Condensed when crossing slagging channel 4, liquid slag is passed through lower cinder notch and enter dreg cooling chamber；By dreg cooling chamber 8 using inner cylinder and outside
The structure of cylinder, the upper gas space volume for making dreg cooling chamber 8 be connected with gasification furnace is as far as possible small, to avoid the fuel gas of gasification furnace
Draw trouble into producing blast in dreg cooling chamber 8 accidentally, it is ensured that fixed bed slag tapping boiler being capable of safety and stability at atmospheric pressure or elevated pressure
Operation, the inner cylinder of dreg cooling chamber 8 is mainly used in reducing the volume of dreg cooling chamber 8 connected with gasification furnace, caused by preventing that furnace pressure is too high
Fuel gas string has blast to draw trouble to dreg cooling chamber 8.When system is normally run, inner cylinder upper space has part water vapour generation.
Electrode 18 is used for the power supply that accesses needed for heating tube 17, and heating tube 17 is generated heat after switching on power, and heating tube 17 is by heat
Amount is transmitted to silicon nitride scum pipe 15 and alundum tube 16, and the thermal conductivity factor of silicon nitride scum pipe 15 is big, is existed by silicon nitride scum pipe 15
Slagging channel 4 is transferred heat to, alundum tube 16 has the effect of insulation, it is ensured that slag prevents from melting in the temperature of slagging channel 4
Slag condensation result in blockage, by alundum tube 16 have product density is big, thermal shock resistance is good, acid and alkali-resistance, resistance to erosion, service life length,
Do not allow it is yielding, and silicon nitride scum pipe 15 have intensity height, hardness height, good wearability, high temperature resistant, corrosion-resistant, heat resistanceheat resistant antidetonation
The good, thermal conductivity factor of property is big and the superior function such as good in oxidation resistance.
Embodiment 3
As shown in Figure 1-2, a kind of side slag-draining device for fixed bed slag tap gasification furnace, including primary furnace, row
Slag passage 4, dreg cooling chamber 8 and slag bucket 10, the primary furnace include burning burner 1, slag area chuck 2 and slag area flame retardant coating 3, institute
State slagging channel 4 and be provided with slag inlet and slag notch, the slag inlet connects the lower inside surface of slag area flame retardant coating 3, described
Slag notch connects dreg cooling chamber 8, and direction of the slag inlet along slag notch has pacifies on certain inclined angle alpha, the slagging channel 4
Equipped with the auxiliary hot slag-discharging device 6 of electricity, the dreg cooling chamber 8 includes inner cylinder and outer barrel, and the upper port of the inner cylinder shrouds slag notch, described
The lower port of inner cylinder is connected with outer barrel, and the outer barrel lower end sets slag bucket 10, and is connected by lock slag valve 9 with slag bucket 10, described
The lower end of slag bucket 10 is provided with slag bath 12, and is connected by residual cake valve 11 with slag bath 12, the upper side of the outer barrel and slag bucket 10
Wall is respectively connected with feed tube, and the lower sides of the outer barrel and slag bucket 10 are respectively connected with drain pipe, the feed tube and drain pipe
On be mounted on valve, can be with the folding of manual control valve, so as to control the water capacity in dreg cooling chamber 8 and slag bucket 10.
The auxiliary hot slag-discharging device 6 of electricity includes silicon nitride scum pipe 15, alundum tube 16, heating tube 17 and electrode 18, the row
In the slag notch end insertion silicon nitride scum pipe 15 of slag passage 4, scum pipe 15 is set in the silicon nitride scum pipe 15, it is described to add
Heat pipe 17 is arranged on silicon nitride scum pipe 15 with the gap of alundum tube 16, electrode 18 is installed in the heating tube 17.
There is certain angle β, the β to be 50- for the center line of the slagging channel 4 and the vertical center line of primary furnace
70°。
The α is 10-15 °.
The slag inlet is set to a bell shape, and horn mouth opening angle is γ, and the γ is 20-30 °.
It is provided with lower cinder notch on the slag notch, the lower cinder notch and dreg cooling chamber's center line have certain angle δ, described
δ is 75-80 °.
By oxygen and water vapour hair of the particle diameter 5-50mm coal cinder in gasification furnace primary furnace 8 with being sent into from burning burner 1
The a series of physical chemical reaction such as raw burning, gasification, pyrolysis, ash melting, the synthesis gas of generation enters stove from primary furnace top
Thorax, to syngas outlet after heat exchange, the bottom high-temperature region lime-ash of primary furnace 8 is melted at high temperature, and the molten slag of generation passes through
The inclination angle of refractory material is flowed to slagging channel 4 in stove, and molten slag is flow at deslagging gap bridge 5 by slagging channel 4, temperature
Reduction, by the auxiliary hot computer heating control of slag-discharging device 6 of electricity in molten condition, can then pass through slag notch into dreg cooling chamber 8, dreg cooling chamber
8 set up certain water seal liquid level when system is normally run, and residual cake valve 11 is closed, and lock slag valve 9 is opened, and is quenched into dreg cooling chamber 8
Cold slag is entered in slag bucket 10 by dreg cooling chamber 8 and deposited, while warm sludge produces heat effect to the water in cold slag 8, passes through control
Liquid level and temperature that slag bath 12 processed is drawn the water into dreg cooling chamber 8 to control dreg cooling chamber 8 to remain certain, deslagging lead to, and slag can not in 4
Full of whole space, it is ensured that gasification furnace is connected with the inner cylinder of dreg cooling chamber 8, it is ensured that tapping process can be smoothed out, while dreg cooling chamber 8
Inner/outer tube forms certain fluid-tight, it is to avoid pressure oscillation causes fuel gas to enter generation blast in dreg cooling chamber and draws trouble in gasification furnace,
The present apparatus can be run under high pressure, when high pressure conditions need deslagging, closed lock slag valve 9, gasification system is isolated with slag bucket 10, so
The pressure of slag bucket 10 is laid down by relief port afterwards, then lime-ash is discharged into by slag bath 12 by residual cake valve 11, slag bucket 10 can by from
Water is drawn in slag bath 12 to be rinsed, and after deslagging is finished, closes residual cake valve 11, the pressure of slag bucket 10 is risen into the pressure of dreg cooling chamber 8,
Lower lock slag valve 9 is opened again, you can enter and receive scoriform state, by installing slagging channel 4, slagging channel on primary furnace lower sides
4 have certain inclined angle alpha, have used for reference the deslagging technique of furnace cupola, and eliminating existing slag tapping boiler is used to maintain slag liquid
The connecting short section and annular burner of position, it is to avoid the slag liquid level too high harm to gasifying furnace nozzle system, are keeping liquid
System investments can be reduced while deslagging process advantage, system run all right is improved, reduces maintenance cost；By in deslagging
Set temperature in the auxiliary hot slag-discharging device 6 of electricity, control side slagging channel 4 to be maintained at 1300 DEG C or so on passage, prevent slag in warp
Condensed when crossing slagging channel 4, liquid slag is passed through lower cinder notch and enter dreg cooling chamber；By dreg cooling chamber 8 using inner cylinder and outside
The structure of cylinder, the upper gas space volume for making dreg cooling chamber 8 be connected with gasification furnace is as far as possible small, to avoid the fuel gas of gasification furnace
Draw trouble into producing blast in dreg cooling chamber 8 accidentally, it is ensured that fixed bed slag tapping boiler being capable of safety and stability at atmospheric pressure or elevated pressure
Operation, the inner cylinder of dreg cooling chamber 8 is mainly used in reducing the volume of dreg cooling chamber 8 connected with gasification furnace, caused by preventing that furnace pressure is too high
Fuel gas string has blast to draw trouble to dreg cooling chamber 8.When system is normally run, inner cylinder upper space has part water vapour generation.
Electrode 18 is used for the power supply that accesses needed for heating tube 17, and heating tube 17 is generated heat after switching on power, and heating tube 17 is by heat
Amount is transmitted to silicon nitride scum pipe 15 and alundum tube 16, and the thermal conductivity factor of silicon nitride scum pipe 15 is big, is existed by silicon nitride scum pipe 15
Slagging channel 4 is transferred heat to, alundum tube 16 has the effect of insulation, it is ensured that slag prevents from melting in the temperature of slagging channel 4
Slag condensation result in blockage, by alundum tube 16 have product density is big, thermal shock resistance is good, acid and alkali-resistance, resistance to erosion, service life length,
Do not allow it is yielding, and silicon nitride scum pipe 15 have intensity height, hardness height, good wearability, high temperature resistant, corrosion-resistant, heat resistanceheat resistant antidetonation
The good, thermal conductivity factor of property is big and the superior function such as good in oxidation resistance.
50-70 ° of angle is set to by the center line of slagging channel 4 and the vertical center line of primary furnace 8, due to gravity
Factor, make the slag into side scum pipe be easy to flow to lower cinder notch.
Direction by the tube wall of slagging channel 4 from slag inlet along slag notch has 10-15 ° of inclination angle, increases high temperature
Slag after gasification flows to the mobility of slag-drip opening.
20-30 ° of bell shape is set to by slag inlet, it is to avoid the completely plugged slag-drip opening of the bed of material of addition makes slag
It can not flow out, can also prevent the unreacted carbon residue of furnace bottom from being brought into together with slag in dreg cooling chamber 8.
There is 75-80 ° of angle by lower cinder notch 7 and the center line of dreg cooling chamber 8, it is consistent with α angle lapping tilted directions, make to enter side
The slag of slagging channel 4 is easy to flow to lower cinder notch.
Embodiment 4
As shown in Figure 1-2, a kind of side slag-draining device for fixed bed slag tap gasification furnace, including primary furnace, row
Slag passage 4, dreg cooling chamber 8 and slag bucket 10, the primary furnace include burning burner 1, slag area chuck 2 and slag area flame retardant coating 3, institute
Slagging channel 4 is stated including slag inlet and slag notch, the slag inlet connects the lower inside surface of slag area flame retardant coating 3, it is described go out
Cinder notch connects dreg cooling chamber 8, and direction of the slag inlet along slag notch has installs on certain inclined angle alpha, the slagging channel 4
There is the auxiliary hot slag-discharging device 6 of electricity, the dreg cooling chamber 8 includes inner cylinder and outer barrel, and the upper port of the inner cylinder shrouds slag notch, it is described interior
The lower port of cylinder is connected with outer barrel, and the outer barrel lower end sets slag bucket 10, and is connected by lock slag valve 9 with slag bucket 10, the slag
The lower end of bucket 10 is provided with slag bath 12, and is connected by residual cake valve 11 with slag bath 12, the upper portion side wall of the outer barrel and slag bucket 10
Feed tube is respectively connected with, the lower sides of the outer barrel and slag bucket 10 are respectively connected with drain pipe, the feed tube and drain pipe
Valve is mounted on, can be with the folding of manual control valve, so as to control the water capacity in dreg cooling chamber 8 and slag bucket 10.
The auxiliary hot slag-discharging device 6 of electricity includes silicon nitride scum pipe 15, alundum tube 16, heating tube 17 and electrode 18, the row
In the slag notch end insertion silicon nitride scum pipe 15 of slag passage 4, scum pipe 15 is set in the silicon nitride scum pipe 15, it is described to add
Heat pipe 17 is arranged on silicon nitride scum pipe 15 with the gap of alundum tube 16, electrode 18 is installed in the heating tube 17.
There is certain angle β, the β to be 50- for the center line of the slagging channel 4 and the vertical center line of primary furnace
70°。
The α is 10-15 °.
The slag inlet is set to a bell shape, and horn mouth opening angle is γ, and the γ is 20-30 °.
Lower cinder notch 7 is provided with the slag notch, the lower cinder notch 7 has certain angle δ with the center line of dreg cooling chamber 8,
The δ is 75-80 °.
The drain pipe is arranged on along 1/3rd of the upward total height in outer barrel lower end.
Filter membrane 13 is provided with the slag bath 12, slag bath 12 is isolated into thick slag bath and filter by the filter membrane 13,
Dragveyer 14 is provided with the thick slag bath, the filter is connected with feed tube, the thick slag bath is connected with drain pipe.
By oxygen and water vapour hair of the particle diameter 5-50mm coal cinder in gasification furnace primary furnace 8 with being sent into from burning burner 1
The a series of physical chemical reaction such as raw burning, gasification, pyrolysis, ash melting, the synthesis gas of generation enters stove from primary furnace top
Thorax, to syngas outlet after heat exchange, the bottom high-temperature region lime-ash of primary furnace 8 is melted at high temperature, and the molten slag of generation passes through
The inclination angle of refractory material is flowed to slagging channel 4 in stove, and molten slag is flow at deslagging gap bridge 5 by slagging channel 4, temperature
Reduction, by the auxiliary hot computer heating control of slag-discharging device 6 of electricity in molten condition, can then pass through slag notch into dreg cooling chamber 8, dreg cooling chamber
8 set up certain water seal liquid level when system is normally run, and residual cake valve 11 is closed, and lock slag valve 9 is opened, and is quenched into dreg cooling chamber 8
Cold slag is entered in slag bucket 10 by dreg cooling chamber 8 and deposited, while warm sludge produces heat effect to the water in cold slag 8, passes through control
Liquid level and temperature that slag bath 12 processed is drawn the water into dreg cooling chamber 8 to control dreg cooling chamber 8 to remain certain, deslagging lead to, and slag can not in 4
Full of whole space, it is ensured that gasification furnace is connected with the inner cylinder of dreg cooling chamber 8, it is ensured that tapping process can be smoothed out, while dreg cooling chamber 8
Inner/outer tube forms certain fluid-tight, it is to avoid pressure oscillation causes fuel gas to enter generation blast in dreg cooling chamber and draws trouble in gasification furnace,
The present apparatus can be run under high pressure, when high pressure conditions need deslagging, closed lock slag valve 9, gasification system is isolated with slag bucket 10, so
The pressure of slag bucket 10 is laid down by relief port afterwards, then lime-ash is discharged into by slag bath 12 by residual cake valve 11, slag bucket 10 can by from
Water is drawn in slag bath 12 to be rinsed, and after deslagging is finished, closes residual cake valve 11, the pressure of slag bucket 10 is risen into the pressure of dreg cooling chamber 8,
Lower lock slag valve 9 is opened again, you can enter and receive scoriform state, by installing slagging channel 4, slagging channel on primary furnace lower sides
4 have certain inclined angle alpha, have used for reference the deslagging technique of furnace cupola, and eliminating existing slag tapping boiler is used to maintain slag liquid
The connecting short section and annular burner of position, it is to avoid the slag liquid level too high harm to gasifying furnace nozzle system, are keeping liquid
System investments can be reduced while deslagging process advantage, system run all right is improved, reduces maintenance cost；By in deslagging
Set temperature in the auxiliary hot slag-discharging device 6 of electricity, control side slagging channel 4 to be maintained at 1300 DEG C or so on passage, prevent slag in warp
Condensed when crossing slagging channel 4, liquid slag is passed through lower cinder notch and enter dreg cooling chamber；By dreg cooling chamber 8 using inner cylinder and outside
The structure of cylinder, the upper gas space volume for making dreg cooling chamber 8 be connected with gasification furnace is as far as possible small, to avoid the fuel gas of gasification furnace
Draw trouble into producing blast in dreg cooling chamber 8 accidentally, it is ensured that fixed bed slag tapping boiler being capable of safety and stability at atmospheric pressure or elevated pressure
Operation, the inner cylinder of dreg cooling chamber 8 is mainly used in reducing the volume of dreg cooling chamber 8 connected with gasification furnace, caused by preventing that furnace pressure is too high
Fuel gas string has blast to draw trouble to dreg cooling chamber 8.When system is normally run, inner cylinder upper space has part water vapour generation.
Electrode 18 is used for the power supply that accesses needed for heating tube 17, and heating tube 17 is generated heat after switching on power, and heating tube 17 is by heat
Amount is transmitted to silicon nitride scum pipe 15 and alundum tube 16, and the thermal conductivity factor of silicon nitride scum pipe 15 is big, is existed by silicon nitride scum pipe 15
Slagging channel 4 is transferred heat to, alundum tube 16 has the effect of insulation, it is ensured that slag prevents from melting in the temperature of slagging channel 4
Slag condensation result in blockage, by alundum tube 16 have product density is big, thermal shock resistance is good, acid and alkali-resistance, resistance to erosion, service life length,
Do not allow it is yielding, and silicon nitride scum pipe 15 have intensity height, hardness height, good wearability, high temperature resistant, corrosion-resistant, heat resistanceheat resistant antidetonation
The good, thermal conductivity factor of property is big and the superior function such as good in oxidation resistance.
50-70 ° of angle is set to by the center line of slagging channel 4 and the vertical center line of primary furnace 8, due to gravity
Factor, make the slag into side scum pipe be easy to flow to lower cinder notch.
Direction by the tube wall of slagging channel 4 from slag inlet along slag notch has 10-15 ° of inclination angle, increases high temperature
Slag after gasification flows to the mobility of slag-drip opening.
20-30 ° of bell shape is set to by slag inlet, it is to avoid the completely plugged slag-drip opening of the bed of material of addition makes slag
It can not flow out, can also prevent the unreacted carbon residue of furnace bottom from being brought into together with slag in dreg cooling chamber 8.
There is 75-80 ° of angle by lower cinder notch 7 and the center line of dreg cooling chamber 8, it is consistent with α angle lapping tilted directions, make to enter side
The slag of slagging channel 4 is easy to flow to lower cinder notch.
The outer barrel of dreg cooling chamber 8, is connected by the lock slag valve 9 of bottom with slag bucket 10, and outer barrel is provided with and is drawn from slag bath 12
Chilled water, and there is delivery port to be discharged into slag bath, dreg cooling chamber is maintained the water seal of certain temperature and height, be arranged on by drain pipe
Along 1/3rd of the upward total height in outer barrel lower end, make to maintain water seal in dreg cooling chamber 8 at 1/3rd of bottom, it is ensured that molten
Slag conveniently changes water condensation while 8 water seal of dreg cooling chamber.
The slag bath 12, is digged pit by ground and is formed, and inside sets the water natural cooling in filter membrane 13, slag bath 12, supplies cold slag
Room 8 is with being provided with dragveyer 14 in water, slag bath needed for slag bucket 10, the thick slag discharged for collection system, the slag bucket 10, on
Portion is connected with dreg cooling chamber 8 by lock slag valve 9, and bottom is provided with the slag-drip opening towards slag bath, is above set and is installed on residual cake valve 11, feed tube
There is suction pump, the chilled water being drawn by suction pump from slag bath enters in dreg cooling chamber 8 and slag bucket 10, and has the release by slag bath
Mouthful, slag bath 12 is isolated into thick slag bath and filter, filter is with entering by the slag remained for cleaning in slag bucket by filter membrane 13
Liquid pipe is connected, and thick slag bath is connected with drain pipe, and dreg cooling chamber 8 is flowed into slag bath 12 after natural cooling, by mistake with the water in slag bucket 10
Dreg cooling chamber 8 and water needed for slag bucket 10 are supplied in the filtering of filter membrane 13 again, so recycle water resource, it is to avoid the wave of water resource
Take, it is cost-effective.
Embodiment described above only expresses the embodiment of the application, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the application protection domain can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, on the premise of technical scheme design is not departed from, various modifications and improvements can be made, these belong to this
The protection domain of application.
Claims (8)
1. a kind of side slag-draining device for fixed bed slag tap gasification furnace, including primary furnace, slagging channel（4）, cold slag
Room（8）And slag bucket（10）, it is characterised in that：The primary furnace includes burning burner（1）, slag area chuck（2）It is resistance to slag area
Fire bed（3）, the slagging channel（4）Slag inlet and slag notch are provided with, the slag inlet connects slag area flame retardant coating（3）Under
Portion's medial surface, the slag notch connects dreg cooling chamber（8）, direction of the slag inlet along slag notch has certain inclined angle alpha, institute
State slagging channel（4）On the auxiliary hot slag-discharging device of electricity is installed（6）, the dreg cooling chamber（8）Including inner cylinder and outer barrel, the inner cylinder it is upper
Slag notch is shrouded in port, and the lower port of the inner cylinder is connected with outer barrel, and the outer barrel lower end sets slag bucket（10）, and pass through lock
Slag valve（9）With slag bucket（10）Connection, the slag bucket（10）Lower end be provided with slag bath（12）, and pass through residual cake valve（11）With slag bath
（12）Connection, the outer barrel and slag bucket（10）Upper portion side wall be respectively connected with feed tube, the outer barrel and slag bucket（10）Bottom
Side wall is respectively connected with drain pipe.
2. a kind of side slag-draining device for fixed bed slag tap gasification furnace as claimed in claim 1, it is characterised in that：
The auxiliary hot slag-discharging device of electricity（6）Including silicon nitride scum pipe（15）, alundum tube（16）, heating tube（17）And electrode（18）, it is described
Slagging channel（4）Slag notch end insertion silicon nitride scum pipe（15）It is interior, the silicon nitride scum pipe（15）Interior setting scum pipe
（15）, the heating tube（17）It is arranged on silicon nitride scum pipe（15）With alundum tube（16）Gap in, the heating tube（17）
Upper installation electrode（18）.
3. a kind of side slag-draining device for fixed bed slag tap gasification furnace as claimed in claim 2, it is characterised in that：
The slagging channel（4）Center line and the vertical center line of primary furnace there is certain angle β, the β to be 50-70 °.
4. a kind of side slag-draining device for fixed bed slag tap gasification furnace as claimed in claim 1, it is characterised in that：
The α is 10-15 °.
5. a kind of side slag-draining device for fixed bed slag tap gasification furnace as claimed in claim 1, it is characterised in that：
The slag inlet is set to a bell shape, and horn mouth opening angle is γ, and the γ is 20-30 °.
6. a kind of side slag-draining device for fixed bed slag tap gasification furnace as claimed in claim 1, it is characterised in that：
Lower cinder notch is provided with the slag notch（7）, the lower cinder notch（7）With dreg cooling chamber（8）Center line has certain angle δ, institute
δ is stated for 75-80 °.
7. a kind of side slag-draining device for fixed bed slag tap gasification furnace as claimed in claim 1, it is characterised in that：
The drain pipe is arranged on along 1/3rd of the upward total height in outer barrel lower end.
8. a kind of side slag-draining device for fixed bed slag tap gasification furnace as claimed in claim 1, it is characterised in that：
The slag bath（12）Inside it is provided with filter membrane（13）, the filter membrane（13）By slag bath（12）Thick slag bath and filter are isolated into,
Dragveyer is provided with the thick slag bath（14）, the filter is connected with feed tube, and the thick slag bath is connected with drain pipe.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107794091A (en) * | 2017-11-13 | 2018-03-13 | 煤炭科学技术研究院有限公司 | A kind of thermal reforming upgrading furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107794091A (en) * | 2017-11-13 | 2018-03-13 | 煤炭科学技术研究院有限公司 | A kind of thermal reforming upgrading furnace |
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