CN106336904A - Powdered coal gasification dry-process deslagging cooler - Google Patents
Powdered coal gasification dry-process deslagging cooler Download PDFInfo
- Publication number
- CN106336904A CN106336904A CN201610932380.1A CN201610932380A CN106336904A CN 106336904 A CN106336904 A CN 106336904A CN 201610932380 A CN201610932380 A CN 201610932380A CN 106336904 A CN106336904 A CN 106336904A
- Authority
- CN
- China
- Prior art keywords
- tube
- ash
- coal gasification
- heat exchange
- pipe
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/52—Ash-removing devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/74—Construction of shells or jackets
- C10J3/76—Water jackets; Steam boiler-jackets
Abstract
The invention discloses a powdered coal gasification dry-process deslagging cooler which comprises a cylindrical pressure-bearing steel shell. A tube pass and a shell pass are arranged in the pressure-bearing steel shell, two layer of fire-resistant thermal insulation liners are arranged in the steel shell of the tube pass, a water jacket is arranged outside the steel shell of the shell pass, the tube pass serves as a heat exchanging tube group to be put in the shell pass, the working medium of the tube pass enters through a main inlet tube and is guided into a collecting tube through a vertical tube, then is distributed to each heat exchanging tube and finally is collected to the upper portion to be discharged through a main outlet tube, a pair of lip welding flanges is arranged above the heat exchanging tube group, pressure detecting tube orifices and ash overflow port are formed in the upper portion of the lip welding flanges, an air delivery inlet and a supporting grille are arranged at the bottom of the shell pass, a corundum porcelain ball is filled at the portion of the supporting grille, and an ash inlet tube and a manhole are formed between the corundum porcelain ball and the heat exchanging tube group. The powdered coal gasification dry-process deslagging cooler is suitable for cooling and heat recovery of solid granulated ash after powdered coal gasification and has the advantages that the temperature difference and stress of the device are small, the cooler can stably operate under the working conditions of high temperature and high pressure and is not likely to produce leakage.
Description
Technical field:
The present invention relates to coal gasification field, specially a kind of coal gasification dry cinder discharging cooler is it is adaptable to coal gasification is solid
Solid granular lime-ash cooling after gasification reaction in state deslagging technique and heat recovery.
Background technology:
Bed pulverized coal gasification technology is a kind of advanced technology clean, that solid-state coal efficiently changes into gaseous forming gas, tool
There is coal adaptability wide, the features such as safe operation.The lime-ash that gasification reaction is generated, using solid-state discharge technology, does not produce useless
Water, environmental pollution impact is little, under the three waste discharge currently requiring that increasingly stringent requires, has obvious advantage.Therefore
How this technology application to be cooled down to the solid granular lime-ash after gasification reaction and heat in coal gasification dry ash extraction technique
Amount reclaims so as to stable operation under high temperature and high pressure condition, and does not produce leakage, can safety dumping solid-state lime-ash this ask
Topic has to be solved.
Content of the invention:
The object of the invention is exactly the defect in order to make up prior art, provides a kind of coal gasification dry cinder discharging cooler, permissible
The solid-state lime-ash producing after coal gasification is reacted is cooled down and heat recovery, and being beneficial to can be in normal temperature after processing further
The purpose of safety dumping under normal pressure.
The present invention is achieved by the following technical solutions:
A kind of coal gasification dry cinder discharging cooler, include cylindrical shape pressure-bearing box hat it is characterised in that: in described pressure-bearing box hat
It is provided with tube side and shell side, inside the box hat of described shell side, is provided with two-layer refractory heat-insulating lining, outside the box hat of shell side, be provided with water folder
Set；Described tube side is placed in shell side for a set of heat exchange tubes, and the working media of described tube side is cooling water, and described cooling water leads to
Cross intake header and enter, from shell side side wall, the concetrated pipe being directly incorporated into pipe group bottom in shell side by vertical duct, then pass through bottom
Portion's concetrated pipe is distributed to every heat exchanger tube, the cooling water in described heat exchanger tube through with solid-state lime-ash heat exchange after, be pooled to heat exchange
On concetrated pipe above pipe group, leave equipment through outlet header from shell side side wall；A pair of lip weldering is set above described set of heat exchange tubes
Flange, is provided with a pressure measurement mouth of pipe and lime-ash overfall above described lip welding method orchid, and described shell side bottom is provided with conveying wind and enters
Mouth and supportive grid, above described supportive grid, heap is filled with Corundum Ceramics ball, is provided with ash between described Corundum Ceramics ball and set of heat exchange tubes
Slag inlet tube and manhole.
Lateral wall in the middle part of described pressure-bearing box hat is provided with ear mount.
Described set of heat exchange tubes is made up of the heat exchanger tube of several specifications, and described set of heat exchange tubes is fixed on shell side box hat by two
Support seat supports on inwall, the vertical duct of the bottom of described set of heat exchange tubes is communicated with leads shower pipe, the described other end leading shower pipe
It is connected to leading at shower pipe mouth of tube side bottom.
It is communicated with guide pipe, described guide pipe is arranged on by guiding trestle on the described vertical duct of set of heat exchange tubes bottom
In inner walls.
The Corundum Ceramics ball of φ 50 and 25 two kinds of specifications of φ is piled up, described high-temperature ash import is located above described support
Above Corundum Ceramics ball, described conveying airduct mouth is located at below grid.
Described lip welding method is blue to be double sealing structure, includes and is arranged on the pressure-bearing box hat docking end face of shell side upper end
Upper and lower flange, described upper and lower flange is respectively equipped with mutually corresponding installing hole, on the interface of described upper and lower flange point
It is not welded with upper and lower sealing ring, sealed by gasket seal between described upper and lower sealing ring, right inside described sealing surface pad
It is provided with heat insulating mattress between the upper and lower flange answered, carried out by weld-ring between corresponding upper and lower sealing ring outside described gasket seal
Seal weld.
Described refractory liner is divided into two-layer, and the wherein one layer refractory liner with high-temperature ash directly contact selects heavy firm
Beautiful castable, the refractory liner after corundum pouring material adopts the relatively low lightweight heat-proof castable of thermal conductivity factor.
The present invention is applied to the high-temperature solid graininess lime-ash generating coal gasification reaction and is cooled down, by solid-state lime-ash
Temperature be reduced to less than 400 DEG C so that follow-up equipment can in the case of not needing refractory liner, continue lime-ash is carried out
Cooling, is finally reached the purpose of safety dumping solid-state lime-ash at normal temperatures and pressures.
Its structure is the heat transmission equipment of vertical no tube plate structure, and shell side structure is the vertical cylinder with refractory liner,
Set a pair of vessel flange above set of heat exchange tubes, be easy to the installation and debugging of set of heat exchange tubes and the construction of refractory lining, on vessel flange
Side is provided with lime-ash overfall.It is provided with grill support device below set of heat exchange tubes, pile up above grid and have φ 50,25 two kinds of rule of φ
The Corundum Ceramics ball of lattice, lime-ash import is located between Corundum Ceramics ball and set of heat exchange tubes, and during work, high-temperature solid graininess lime-ash is in pressure
Under the promotion of power, enter shell side from lime-ash import, be deposited on Corundum Ceramics ball.
Ash water wind entrance is located at below grid, and conveying wind from lower to upper, through grid and porcelain ball, promotes solid-state lime-ash
Slowly upper shifting, after reaching set of heat exchange tubes position, carries out heat exchange with set of heat exchange tubes, cooling.Set heat exchanger tube as needed
Length, it is ensured that the solid-state ash temperature after heat exchange is reduced to less than 400 DEG C, then leaves row from the overfall positioned at equipment top
Slag cooler, goes to carry out the process of next step.Described set of heat exchange tubes one end is fixed, and the other end arranges guide and limit support, work
When making, the displacement of set of heat exchange tubes horizontal direction is limited, and axially can freely stretch, and such shell journey will not assisted because of thermal expansion
Adjust and produce excessive thermal (temperature difference) stress.And shell side upper end arranges a pair of lip welding method orchid double sealing structure, is easy to heat exchanger tube
The installation of group is it is possible to guarantee to reveal at sealing during the work of deslagging cooler.
The invention has the advantage that
Present configuration reasonable in design it is adaptable to the cooling of solid granular lime-ash and heat recovery after coal gasification, have and set
Standby thermal (temperature difference) stress is little, can in stable operation under high temperature and high pressure condition it is not easy to produce leakage advantage.
Brief description:
Fig. 1 is the structural representation of patent of the present invention.
Fig. 2 is set of heat exchange tubes water inlet manifold structural representation.
Fig. 3 is shell side housing lip welding method orchid double sealing structure schematic diagram.
Specific embodiment:
Referring to accompanying drawing.
As shown in figure 1, a kind of coal gasification dry cinder discharging cooler is it is adaptable to gas in coal gasification dry ash extraction technique
Change reacted solid granular lime-ash cooling.Deslagging cooler is a kind of vertical heat exchanging equipment, using ear mount 8 supporting way,
Include three chambeies such as shell side 1, tube side 7 and water leg 2.Tube side is made up of the heat exchanger tube of several specifications, and tube side working media is
Cooling water, forced circulation, cooling water passes through intake header 9 and enters in shell side from shell side side wall, is introduced directly into pipe group bottom, then leads to
Cross concetrated pipe and be distributed to every heat exchanger tube, heat exchanger tube square arrangement, through with solid-state lime-ash heat exchange after, be pooled to set of heat exchange tubes
The concetrated pipe of top, through outlet header 13, from shell side side, wall leaves equipment.Tube side bottom arranges one and continuously leads shower pipe mouth 15,
Prevent set of heat exchange tubes bottom salt accumulation, cause pipe group corrosion failure.Tube side set of heat exchange tubes is fixed in shell side box hat by two
Support base 14 on wall supports, and set of heat exchange tubes bottom setting guiding trestle is it is ensured that set of heat exchange tubes axially can be freely swollen when working
Swollen, it is to avoid shell journey produces excessive thermal (temperature difference) stress because thermal expansion is inharmonious.
It is provided with two-layer refractory heat-insulating lining 6 inside shell side box hat, a pair of lip welding method orchid 10 is set above set of heat exchange tubes, is easy to
The installation and debugging of set of heat exchange tubes, are provided with a pressure measurement mouth of pipe 11 and lime-ash overfall 12 above lip welding method orchid.
Shell side bottom is provided with conveying wind inlet 17 and supportive grid 3, landfill φ 50 and 25 two kinds of rule of φ above supportive grid
The Corundum Ceramics ball 4 of lattice, lime-ash inlet tube 16 and manhole 5 are located between Corundum Ceramics ball and set of heat exchange tubes.
Solid granular lime-ash after patent of the present invention is applied to coal gasification cools down and heat recovery.Solid-state fine coal is in gas
Change after carrying out gasification reaction in stove, the solid-state lime-ash of generation is discharged by the furnace bottom that gasifies, and enters dry ash extraction under pressure
Cooler, lime-ash import be provided with stretch guide pipe, by lime-ash send into deslagging cooler inside.It is provided with support lattice below lime-ash import
Grid, pile up the Corundum Ceramics ball of φ 50 and 25 two kinds of specifications of φ above grid, lime-ash, behind import access arrangement inside, is deposited in just
Above beautiful porcelain ball, below supportive grid, it is provided with conveying airduct mouth, conveying wind passes through grid and Corundum Ceramics ball, promotes solid granular
Lime-ash is slowly upper to be moved, and during upper shifting, carries out heat exchange, cooling with the set of heat exchange tubes being located above lime-ash import, according to heat exchange
Coefficient and the requirement to lime-ash chilling temperature, can set the length of heat exchanger tube so that lime-ash is being finished with set of heat exchange tubes heat exchange
Afterwards, temperature≤400 DEG C.Lime-ash after heat exchange continues slow rising, finally from positioned at its upper side under the promotion of conveying wind
Tilt overfall to leave, enter subsequent processing device.
As shown in Fig. 2 tube side set of heat exchange tubes is placed in shell side, in order to eliminate the thermal stress during work of pipe group, pipe group adopts
One end is fixed, the free stretching structure in one end, and water inlet manifold 9, outfall sewer 13 are respectively positioned on above set of heat exchange tubes, and center line is located at
In same level, pipe group top is supported on equipment shell wall by two support bases 14, and bottom arranges a guiding trestle 7-
1, guiding trestle 7-1 is provided with guide pipe 7-8 straight up, the displacement of restriction level direction, vertical direction can freely be stretched
Contracting.The working media of described tube side is cooling water, and described cooling water passes through intake header 9 and enters in shell side 1 from shell side side wall, directly
Connected the concetrated pipe 7-3 that vertical duct 7-2 is incorporated into pipe group bottom, more every heat exchanger tube 7-4 be distributed to by bottom concetrated pipe,
The square arrangement of heat exchanger tube 7-4, the cooling water in heat exchanger tube 7-4 through with solid-state lime-ash heat exchange after, be pooled to set of heat exchange tubes
On the concetrated pipe 7-5 of top, leave equipment through outlet header from shell side side wall.It is provided with inlet sleeve 7-6 at described water inlet manifold,
It is connected by connecting plate 7-7 between described water inlet manifold 9 and concetrated pipe 7-5 below,.
Be provided with refractory heat-insulating castable lining in equipment, with reduce the wall temperature of shell side metal shell it is ensured that normally run when
The operation temperature of metal shell is in rational scope.Refractory liner divides two-layer, and the refractory liner of high-temperature ash directly contact
From heavy corundum castable, the erosion of high temperature and the abrasion of lime-ash can be effective against, be heat conduction after corundum pouring material
The relatively low lightweight heat-proof castable of coefficient, can effectively reduce the temperature of housing, according to Calculation of Heat Transfer result, rationally arrange heavy
The thickness of lining and insulated lining is it is ensured that equipment metal shell outside wall temperature is in expected scope.
The pipe group support base of device interior, guiding trestle, grid bearing are all directly welded on equipment inner wall, for preventing this
The apparatus casing local overheating of a little connecting portions, partly arranges water leg below vessel flange and carries out overheating protection.
It is provided with manhole between lime-ash import and tube side pipe group, be easy to inspection in equipment metal shell manufacture process and resistance to
The building by laying bricks or stones of fiery lining, when ash-dregs cooler works, people's hole path adopts dismountable fire-resistant heat insulating material prefabrication plug real, side
Just later maintenance.
Tube side bottom arranges one and continuously leads shower pipe mouth, prevents set of heat exchange tubes bottom salt accumulation from causing the corrosion of pipe group broken
Bad.
For the ease of the manufacture of ash-dregs cooler equipment, inspection, install and maintenance, be provided with a pair of lip weldering in equipment shell side
Flange, lip welding method is blue to weld double sealing structure using pad and lip, and in device fabrication inspection and running-in period, flange can pass through
Pad is sealed, and after equipment trial operation is qualified, then weldering lip is carried out seal weld it is ensured that the long period of equipment is transported safely
OK.
As Fig. 3, the blue concrete structure of described lip welding method is: described lip welding method is blue to be double sealing structure, includes
It is arranged on upper and lower flange 10-1,10-2 that shell side upper end pressure-bearing box hat docks on end face, described upper and lower flange 10-1,10-2
On be respectively equipped with mutually corresponding installing hole 10-3, the interface of described upper and lower flange 10-1,10-2 is respectively welded,
Lower sealing ring 10-4,10-5, described upper and lower sealed by gasket seal 10-6 between sealing ring 10-4,10-5, sealing surface pad
Inside 10-6 corresponding upper and lower be provided with heat insulating mattress 10-7 between flange 10-1,10-2, outside gasket seal 10-6 corresponding upper,
Between lower sealing ring 10-4,10-5, seal weld is carried out by weld-ring 10-8.
Claims (9)
1. a kind of coal gasification dry cinder discharging cooler, include cylindrical shape pressure-bearing box hat it is characterised in that: described pressure-bearing box hat
Inside it is provided with tube side and shell side, be provided with two-layer refractory heat-insulating lining inside the box hat of described shell side, outside the box hat of shell side, be provided with water
Chuck, described tube side is placed in shell side for a set of heat exchange tubes, and the working media of described tube side is cooling water, described cooling water
The concetrated pipe being directly incorporated into pipe group bottom in shell side by vertical duct is entered from shell side side wall by intake header, then passes through
Bottom concetrated pipe is distributed to every heat exchanger tube, the cooling water in described heat exchanger tube through with solid-state lime-ash heat exchange after, be pooled to and change
On concetrated pipe above heat pipe heat, leave equipment through outlet header from shell side side wall, a pair of lip is set above described set of heat exchange tubes
Welding method is blue, is provided with a pressure measurement mouth of pipe and lime-ash overfall, described shell side bottom is provided with conveying wind above described lip welding method orchid
Import and supportive grid, above described supportive grid, heap is filled with Corundum Ceramics ball, is provided between described Corundum Ceramics ball and set of heat exchange tubes
Lime-ash inlet tube and manhole.
2. coal gasification dry cinder discharging cooler according to claim 1 it is characterised in that: in the middle part of described pressure-bearing box hat
Lateral wall be provided with ear mount.
3. coal gasification dry cinder discharging cooler according to claim 1 it is characterised in that: described set of heat exchange tubes be in change
The square arrangement of heat pipe, and it adopts one end to fix, the free stretching structure in one end, described water-in and water-out house steward is respectively positioned on heat exchange
Above pipe group, and center line is located in same level, and set of heat exchange tubes top is supported on equipment shell wall by two support bases,
Bottom arranges a guiding trestle, the displacement of restriction level direction, and vertical direction can freely stretch, described set of heat exchange tubes bottom
Vertical duct is communicated with leads shower pipe, and the described other end leading shower pipe is connected to the leading at shower pipe mouth of tube side bottom.
4. coal gasification dry cinder discharging cooler according to claim 3 it is characterised in that: described set of heat exchange tubes is by several
Plant the heat exchanger tube composition of specification.
5. coal gasification dry cinder discharging cooler according to claim 1 it is characterised in that: above described support pile up
φ 50 and the Corundum Ceramics ball of 25 two kinds of specifications of φ, described high-temperature ash import is located above Corundum Ceramics ball, described conveying wind
The mouth of pipe is located at below grid.
6. coal gasification dry cinder discharging cooler according to claim 1 it is characterised in that: described lip welding method orchid is double
Resealing structure, includes and is arranged on the upper and lower flange that shell side upper end pressure-bearing box hat docks on end face, described upper and lower flange
On be respectively equipped with mutually corresponding installing hole, the interface of described upper and lower flange is respectively welded upper and lower sealing ring, described
Sealed by gasket seal between upper and lower sealing ring, be provided with heat-insulated inside described sealing surface pad between corresponding upper and lower flange
Pad, carries out seal weld by weld-ring between corresponding upper and lower sealing ring outside described gasket seal.
7. coal gasification dry cinder discharging cooler according to claim 1 it is characterised in that: described refractory liner is divided into
Two-layer, the wherein one layer refractory liner with high-temperature ash directly contact selects heavy corundum castable, after corundum pouring material
The refractory liner in face adopts the relatively low lightweight heat-proof castable of thermal conductivity factor.
8. coal gasification dry cinder discharging cooler according to claim 1 it is characterised in that: described lime-ash entrance sets
There is the guide pipe inwardly stretched.
9. coal gasification dry cinder discharging cooler according to claim 1 it is characterised in that: be provided with one at described overfall
Individual downward-sloping overflow pipe, for the solid granular lime-ash after heat exchange is left equipment from overfall, enters lower one work
Sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610932380.1A CN106336904A (en) | 2016-10-25 | 2016-10-25 | Powdered coal gasification dry-process deslagging cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610932380.1A CN106336904A (en) | 2016-10-25 | 2016-10-25 | Powdered coal gasification dry-process deslagging cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106336904A true CN106336904A (en) | 2017-01-18 |
Family
ID=57840663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610932380.1A Pending CN106336904A (en) | 2016-10-25 | 2016-10-25 | Powdered coal gasification dry-process deslagging cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106336904A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830750A (en) * | 2017-09-27 | 2018-03-23 | 兰州兰石集团有限公司 | Coal gasifier ash-dregs cooler |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102757822A (en) * | 2011-04-25 | 2012-10-31 | 烟台鑫丰源电站设备有限公司 | Fixed-type pressure-bearing hot ash cooling device |
| CN104654832A (en) * | 2015-02-15 | 2015-05-27 | 中国计量学院 | Tube-shell type heat exchange device |
| CN204853510U (en) * | 2015-07-03 | 2015-12-09 | 东华工程科技股份有限公司 | Chemical industry tail gas burns waste heat boiler |
-
2016
- 2016-10-25 CN CN201610932380.1A patent/CN106336904A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102757822A (en) * | 2011-04-25 | 2012-10-31 | 烟台鑫丰源电站设备有限公司 | Fixed-type pressure-bearing hot ash cooling device |
| CN104654832A (en) * | 2015-02-15 | 2015-05-27 | 中国计量学院 | Tube-shell type heat exchange device |
| CN204853510U (en) * | 2015-07-03 | 2015-12-09 | 东华工程科技股份有限公司 | Chemical industry tail gas burns waste heat boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830750A (en) * | 2017-09-27 | 2018-03-23 | 兰州兰石集团有限公司 | Coal gasifier ash-dregs cooler |
| CN107830750B (en) * | 2017-09-27 | 2019-12-27 | 兰州兰石集团有限公司 | Ash cooler for coal gasification furnace |
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| PB01 | Publication | ||
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Application publication date: 20170118 |