CN110016367A - A kind of hot feed water-coal-slurry gasification system - Google Patents
A kind of hot feed water-coal-slurry gasification system Download PDFInfo
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- CN110016367A CN110016367A CN201910394092.9A CN201910394092A CN110016367A CN 110016367 A CN110016367 A CN 110016367A CN 201910394092 A CN201910394092 A CN 201910394092A CN 110016367 A CN110016367 A CN 110016367A
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- 239000003250 coal slurry Substances 0.000 title claims abstract description 173
- 238000002309 gasification Methods 0.000 title claims abstract description 69
- 239000012530 fluid Substances 0.000 claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 11
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 8
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 8
- 230000008676 import Effects 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 43
- 239000003245 coal Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002918 waste heat Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 3
- 230000000452 restraining effect Effects 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000036284 oxygen consumption Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 241000183024 Populus tremula Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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
-
- 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
- C10J3/50—Fuel charging 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
-
- 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
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
-
- 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
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
-
- 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
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0959—Oxygen
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
A kind of hot feed water-coal-slurry gasification system, including water-coal-slurry storage tank, the outlet of water-coal-slurry storage tank is responsible for by water-coal-slurry to be connected with the entrance of water-coal slurry pump, the outlet of water-coal slurry pump is responsible for by water-coal-slurry to be connected with the water-coal-slurry entrance of water-coal-slurry preheating device, the water-coal-slurry outlet of water-coal-slurry preheating device is responsible for by water-coal-slurry to be connected with the water-coal-slurry entrance of gasification furnace, the oxygen inlet of gasification furnace is connected with oxygen channel, and the syngas outlet of gasification furnace leads to synthesis gas processing section；The heat source import and heat source fluid inlet pipeline of the water-coal-slurry preheating device export connection, are equipped with the second valve on heat source fluid inlet pipeline, the thermal source outlet of water-coal-slurry preheating device is connected with heat source fluid outlet conduit entrance；The present invention is more readily available for the upgrading of traditional coal-water-slurry gasification system, and improvement expenses are compared smaller with difficulty；Water-coal-slurry preheating device is more suitable for preheating the higher shear-thinning non-Newtonian fluid of this viscosity of water-coal-slurry simultaneously.
Description
Technical field
The invention belongs to technical field of coal chemical industry, and in particular to a kind of hot feed water-coal-slurry gasification system.
Background technique
Coal Gasification Technology is the leading technology of coal chemical industry, the air flow bed pressurized gasification technology phase of water-coal-slurry in Coal Gasification Technology
To mature and reliable, seeks and using more reasonable, efficient water-coal-slurry utilization ways be bound to that the economy of coal gasification can be significantly increased
Benefit.Common water-coal-slurry gasification system is all the room temperature feeding manner using water-coal-slurry, and water-coal-slurry is after entering gasification furnace
Need largely to absorb heat make containing moisture vaporization, while reaching gasification temperature；Such feeding manner to coal water slurry gasification efficiency,
The stability of water-coal-slurry atomizing effect and gasification all adversely affects.And increase water coal in water-coal-slurry gasification system
Preheating device is starched, a degree of preheating is carried out to water-coal-slurry before water-coal-slurry enters gasification furnace, inlet temperature is properly increased, makes
Water-coal-slurry reaches hot feed state, and water-coal-slurry can be made to be easier to be atomized in gasification furnace, and gasification is more stable, gasification effect
Rate is higher, reduces oxygen consumption.
Quench generates black in the preheating having disclosed at present/heating water-coal-slurry gasification system mostly recycling gasification process
Thermal energy in water heats water-coal-slurry, has ignored Partial-gasification technique and is closed using waste heat boiler process rather than chilling process recycling
The case where at gas heat；In addition actually also there are many heat that utilizable waste heat can be used as heating water-coal-slurry in the factory
A possibility that source, these systems are not also accounted for using other waste heat of factory, and the thermal energy in the Heisui River generated using Quench is deposited
In larger transformation difficulty and improvement cost；Furthermore these systems are not related to mostly heating the specific device of water-coal-slurry, general type
Heat exchanger is difficult to be suitable as water-coal-slurry preheating device because of the unique fluid behaviour of water-coal-slurry.
Water-coal-slurry is a kind of sticky non-newtonian fluid, and what is reduced with biggish increase with shear rate is apparent glutinous
Degree, the pressure drop that generation is flowed in preheating device to water-coal-slurry have significant impact.Therefore in order to guarantee water coal when preheating water-coal-slurry
Inlet pressure, while the transformation difficulty in view of reducing water-coal-slurry gasification system are starched, is answered when reaching identical pre-heat effect
This keeps water-coal-slurry pressure drop small as far as possible.Common segmental baffle board heat exchangers, flowing of the fluid in shell side are in zigzag, and flowing is easy
Throttling and flow dead zone are generated, leads to that shell side pressure drop is big, film heat transfer coefficient is low, is easy fouling, therefore is not suitable as water-coal-slurry
Preheating device.Spiral baffle heat exchanger due to shell fluid around tube bank axis helically flow, arch baffling can be effectively improved
The defect of sheet heat exchanger.But conventional helical baffle heat exchanger in shell side adjacent Liang Kuai baffle plate lap-joint there are gap, this
Kind of gap will form the express passway of a fluid, make shell fluid partial short-circuit, especially for the biggish water-coal-slurry of viscosity,
It is easier to be unfavorable for conducting heat from opening position leakage current, so be also not suitable for as water-coal-slurry preheating device.
Summary of the invention
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of hot feed water-coal-slurry coal gasifications
System, it is easier to which for the upgrading of traditional coal-water-slurry gasification system, improvement expenses are compared smaller with difficulty, and can select
Heat source of a variety of factory's waste heat as preheating water-coal-slurry, while water-coal-slurry preheating device structure novel are selected, preheating water coal is more suitable for
Starch the higher shear-thinning non-Newtonian fluid of this viscosity.
In order to achieve the above object, the technical solution adopted by the present invention are as follows:
The outlet of a kind of hot feed water-coal-slurry gasification system, including water-coal-slurry storage tank 1, water-coal-slurry storage tank 1 passes through water coal
Slurry supervisor 7 connects with the entrance of water-coal slurry pump 2, and the outlet of water-coal slurry pump 2 passes through water-coal-slurry supervisor 7 and water-coal-slurry preheating device 3
Water-coal-slurry entrance connection, water-coal-slurry preheating device 3 water-coal-slurry outlet by water-coal-slurry be responsible for 7 and gasification furnace 4 water-coal-slurry
Entrance connection, oxygen inlet and oxygen channel 11 connection of gasification furnace 4, the syngas outlet of gasification furnace 4 lead to synthesis gas disposal
Workshop section；
The heat source import and heat source fluid inlet pipeline 8 of the water-coal-slurry preheating device 3 export connection, heat source fluid into
Second valve 6 is installed, the thermal source outlet and 9 entrance of heat source fluid outlet conduit of water-coal-slurry preheating device 3 connect on mouth pipeline 8
It connects.
The outlet of the water-coal slurry pump 2 is connected by water-coal-slurry branch pipe 10 with the water-coal-slurry feedback outlet of water-coal-slurry storage tank 1,
First valve 5 is installed on water-coal-slurry branch pipe 10.
The water-coal-slurry preheating device 3 includes the pipe side of the shell-side and the flowing of supplying heat source fluid for water-coal-slurry flowing, shell
The baffle plate form of side is bending type semicircle baffle plate.
The bending type semicircle baffle plate is to be formed twice by one block of massive plate according to bending angle θ bending, shape after bending
At baffling board ends A plane and C plane it is parallel with the tube bank plane of tube sheet, the plane of intermediate B plane and tube bank tube sheet
At bending angle θ；The bending degree bent twice is identical, and bending degree is equal to b/a, and wherein b is that the center of circle is axial just along tube bank to folding line
Depending on the vertical range projected, a is radius of circle, and the baffle plate after bending carries out machining by side profile and drills, and makes its foreign steamer
Exterior feature is just being considered as a semicircle.
The value range of the bending angle θ is 10 °~50 °.
The value range of the bending degree is 0.2~0.8.
The pipe side of the water-coal-slurry preheating device 3 is the tube bank that there is tube sheet at both ends.
Water-coal-slurry after the water-coal-slurry preheating device 3 preheats should reach 60 DEG C~200 DEG C, water-coal-slurry preheating device
The pressure drop of water-coal-slurry should be not more than 1000kPa in 3.
The heat source fluid of the heat source fluid inlet pipeline 8 selects factory's waste heat, and coal chemical industry enterprises are according to own situation
Select corresponding heat source fluid.
Compared with prior art, the invention has the benefit that
Compared to the traditional gasification system of no preheating/heating water-coal-slurry, hot feed water-coal-slurry coal gasification of the invention
System carries out a degree of preheating to water-coal-slurry before water-coal-slurry enters gasification furnace, properly increases inlet temperature, makes water-coal-slurry
Reach hot feed state, water-coal-slurry can be made to be easier to be atomized in gasification furnace, gasification is more stable, and gasification efficiency is more
Height reduces oxygen consumption.Using ASPEN PLUS processing simulation as means, the traditional coal gas for not preheating/heating water-coal-slurry compared
Change system and hot feed water-coal-slurry gasification system of the present invention, the traditional gasification system for not preheating/heating water-coal-slurry will be normal
25 DEG C of temperature, the water-coal-slurry of 52.13% mass concentration are sent directly into gasification furnace, are gasified with 1280 DEG C, 4.2MPa condition；And hot feed
The water-coal-slurry of 52.13% mass concentration is preheated to 200 DEG C and is re-fed into gasification furnace by water-coal-slurry gasification system, with the same terms gas
Change, the cold gas efficiency of gasification improves 4.14%, and synthesis gas effective component improves 3.31%, and oxygen consumption reduces 7.37%.
For the coal water slurry gasification system of coal consumption 1000t/d, CO/H can be improved2Yield 4365.06kmol/d, while reducing oxygen and disappearing
Consume 70.01t/d.
The gasification system of water-coal-slurry, hot feed water-coal-slurry gasification system of the invention are preheated/heated compared to other
It is more readily available for the upgrading of traditional coal-water-slurry gasification system, improvement expenses are compared smaller with difficulty, and can choose more
Heat source of the kind factory's waste heat as preheating water-coal-slurry.
Shell-side has the water-coal-slurry preheating device of bending type semicircle baffle plate compared to convenient arc baffle heat exchanger, stream
Dynamic resistance is small, is not easy incrustation fouling, film heat transfer coefficient height.Compared to surface plate spiral baffle heat exchanger due to having blocked plane
The leakage current gap of plate spiral baffle heat exchanger makes it have more excellent flowing heat transfer performance, is particularly suitable as having
High viscosity, easy fouling, shear thinning characteristic water-coal-slurry preheating device.
Detailed description of the invention
Fig. 1 is schematic diagram of the invention.
Fig. 2 is the structural schematic diagram of water-coal-slurry preheating device of the present invention.
Fig. 3 is bending type semicircle baffle plate schematic three dimensional views.
Fig. 4 is bending type semicircle baffle plate side view (along the circumferential direction of tube bank).
Fig. 5 is bending type semicircle baffle plate front view (along the axial direction of tube bank).
Fig. 6 is water-coal-slurry preheating device scheme of installation.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawing.
Referring to Fig.1, a kind of hot feed water-coal-slurry gasification system, including water-coal-slurry storage tank 1, the outlet of water-coal-slurry storage tank 1
It is connected by water-coal-slurry supervisor 7 with the entrance of water-coal slurry pump 2, the outlet of water-coal slurry pump 2 is pre- by water-coal-slurry supervisor 7 and water-coal-slurry
The water-coal-slurry entrance of thermal 3 connects, and 7 and gasification furnace 4 are responsible for by water-coal-slurry in the water-coal-slurry outlet of water-coal-slurry preheating device 3
The connection of water-coal-slurry entrance, oxygen inlet and oxygen channel 11 connection of gasification furnace 4, the syngas outlet of gasification furnace 4 lead to synthesis
Gas disposal workshop section；
The heat source import and heat source fluid inlet pipeline 8 of the water-coal-slurry preheating device 3 export connection, heat source fluid into
Second valve 6 is installed, the thermal source outlet and 9 entrance of heat source fluid outlet conduit of water-coal-slurry preheating device 3 connect on mouth pipeline 8
It connects.
The outlet of the water-coal slurry pump 2 is connected by water-coal-slurry branch pipe 10 with the water-coal-slurry feedback outlet of water-coal-slurry storage tank 1,
First valve 5 is installed on water-coal-slurry branch pipe 10.
The course of work of hot feed water-coal-slurry gasification system are as follows:
The water-coal-slurry stream of 50%~70% mass fraction in water-coal-slurry storage tank 1 flows through water after pressurizeing by water-coal slurry pump 2
Coal slurry supervisor 7 and water-coal-slurry branch pipe 10, the aperture by adjusting the first valve 5 installed on water-coal-slurry branch pipe 10 pass through to adjust
Water-coal-slurry supervisor 7 enters the flow of water-coal-slurry preheating device 3；After water-coal-slurry enters water-coal-slurry preheating device 3, preheated in water-coal-slurry
The shell-side flow of device 3 carries out heat exchange with the heat source fluid flowed in 3 pipe side of water-coal-slurry preheating device and is heated by
The aperture for the second valve 6 installed on heat source fluid inlet pipeline 8 is adjusted to adjust the heat source stream into water-coal-slurry preheating device 3
Body flow, and then realize the temperature of the water-coal-slurry after adjusting preheating；Water-coal-slurry after preheating should reach 60 DEG C~200 DEG C to
Reaching hot feed state, the pressure drop of water-coal-slurry should be not more than 1000kPa in water-coal-slurry preheating device 3, in order to avoid influence gasification furnace 4
Furnace pressure；The water-coal-slurry for reaching hot feed state continues on through water-coal-slurry supervisor 7 and enters gasification furnaces 4, and passes through oxygen channel
11 oxygen for entering gasification furnace 4 carry out gasification reaction and produce synthesis gas, and the crude synthesis gas after reaction leads to synthesis gas processing section.
The heat source fluid of the heat source fluid inlet pipeline 8 selects factory's waste heat, including condensed water in high temperature, whole coal gas
Heisui River, the high-temperature cooling water etc. that the exhaust steam in steam turbine or coal gasification chilling process for changing combined cycle generation (IGCC) generate, coalification
Work enterprise selects corresponding heat source fluid according to own situation, is greatly lowered system reform difficulty, and transformation feasibility greatly mentions
It is high.
Referring to Fig. 2, the water-coal-slurry preheating device 3 includes that the shell-side flowed for water-coal-slurry and supplying heat source fluid flow
Pipe side, the baffle plate form of shell-side are bending type semicircle baffle plate；Referring to Fig. 3 and Fig. 4, the bending type semicircle baffle plate is
It is formed twice by one block of massive plate according to bending angle θ bending, the A plane and C plane and pipe of the baffling board ends formed after bending
The plane of beam tube plate is parallel, and the plane of intermediate B plane and tube bank tube sheet is at bending angle θ；The bending degree bent twice is identical, curved
Folding degree is equal to b/a, and wherein b is vertical range of the center of circle to folding line along the axial general perspective of tube bank, and a is radius of circle, referring to Fig. 5
It is shown；Baffle plate after bending carries out machining by side profile and drills, its outer profile is made just to be considered as a semicircle；Bending
The value range of angle θ is 10 °~50 °, and the value range of bending degree is 0.2~0.8, and the pipe side of water-coal-slurry preheating device 3 is two
There is the tube bank of tube sheet at end, as shown in Figure 2.
The mounting means of the water-coal-slurry preheating device 3 are as follows:
Referring to Fig. 6, first piece of bending type semicircle baffle plate 14 is positioned in tube bank with pull rod 12 and distance sink tube 13 first,
Then second piece of bending type semicircle baffle plate 15, the opposite first piece of bending type half of second piece of bending type semicircle baffle plate 15 are installed again
Circle 14 direction of baffle plate overturns 180 °, and the rear of first piece of bending type semicircle baffle plate is placed it along tube bank axis direction, is adjusted
The position of 14, second pieces of bending type semicircle baffle plates 15 of whole first piece of bending type semicircle baffle plate, makes two pieces of adjacent baffle plates
General perspective forms a full circle, is then positioned, is repeated the above process with pull rod 12 and distance sink tube 13, until entire tube bank installation
It completes.
Claims (9)
1. a kind of hot feed water-coal-slurry gasification system, including water-coal-slurry storage tank (1), it is characterised in that: water-coal-slurry storage tank (1)
Outlet is connected by water-coal-slurry supervisor (7) with the entrance of water-coal slurry pump (2), and the outlet of water-coal slurry pump (2) is responsible for by water-coal-slurry
(7) it is connected with the water-coal-slurry entrance of water-coal-slurry preheating device (3), the water-coal-slurry outlet of water-coal-slurry preheating device (3) passes through water coal
Slurry supervisor (7) connects with the water-coal-slurry entrance of gasification furnace (4), oxygen inlet and oxygen channel (11) connection of gasification furnace (4), gas
The syngas outlet for changing furnace (4) leads to synthesis gas processing section；
The heat source import and heat source fluid inlet pipeline (8) of the water-coal-slurry preheating device (3) export connection, heat source fluid into
It is equipped with the second valve (6) on mouth pipeline (8), the thermal source outlet and heat source fluid outlet conduit (9) of water-coal-slurry preheating device (3)
Entrance connection.
2. a kind of hot feed water-coal-slurry gasification system according to claim 1, it is characterised in that: the water-coal slurry pump
(2) outlet is connected by water-coal-slurry branch pipe (10) with the water-coal-slurry feedback outlet of water-coal-slurry storage tank (1), on water-coal-slurry branch pipe (10)
First valve (5) are installed.
3. a kind of hot feed water-coal-slurry gasification system according to claim 1, it is characterised in that: the water-coal-slurry is pre-
Thermal (3) includes the pipe side of the shell-side and the flowing of supplying heat source fluid for water-coal-slurry flowing, and the baffle plate form of shell-side is bending
Type semicircle baffle plate.
4. a kind of hot feed water-coal-slurry gasification system according to claim 3, it is characterised in that: the bending type half
Circle baffle plate be by one block of massive plate according to bending angle θ bending formed twice, the A plane of the baffling board ends formed after bending with
C plane is parallel with the tube bank plane of tube sheet, and the plane of intermediate B plane and tube bank tube sheet is at bending angle θ；The bending bent twice
Spend identical, bending degree is equal to b/a, wherein b be the center of circle to folding line along the vertical range for restraining axial general perspective, a be circle partly
Diameter, the baffle plate after bending carry out machining by side profile and drill, its outer profile is made just to be considered as a semicircle.
5. a kind of hot feed water-coal-slurry gasification system according to claim 4, it is characterised in that: the bending angle θ
Value range be 10 °~50 °.
6. a kind of hot feed water-coal-slurry gasification system according to claim 4, it is characterised in that: the bending degree
Value range is 0.2~0.8.
7. a kind of hot feed water-coal-slurry gasification system according to claim 1, it is characterised in that: the water-coal-slurry is pre-
The pipe side of thermal (3) is the tube bank that there is tube sheet at both ends.
8. a kind of hot feed water-coal-slurry gasification system according to claim 1, it is characterised in that: the water-coal-slurry is pre-
Water-coal-slurry after thermal (3) preheating should reach 60 DEG C~200 DEG C, and the pressure drop of water-coal-slurry is answered in water-coal-slurry preheating device (3)
No more than 1000kPa.
9. a kind of hot feed water-coal-slurry gasification system according to claim 1, it is characterised in that: the heat source fluid
The heat source fluid of inlet pipeline (8) selects factory's waste heat, and coal chemical industry enterprises select corresponding heat source fluid according to own situation.
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| CN201910394092.9A CN110016367A (en) | 2019-05-13 | 2019-05-13 | A kind of hot feed water-coal-slurry gasification system |
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| CN201910394092.9A CN110016367A (en) | 2019-05-13 | 2019-05-13 | A kind of hot feed water-coal-slurry gasification system |
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| CN107619686A (en) * | 2017-11-10 | 2018-01-23 | 崔静思 | A kind of gasification system and method for water-coal-slurry efflorescence |
| CN209974693U (en) * | 2019-05-13 | 2020-01-21 | 西安交通大学 | Hot feeding coal water slurry coal gasification structure |
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