CN215975682U - Gasification furnace gas washing and purifying system - Google Patents
Gasification furnace gas washing and purifying system Download PDFInfo
- Publication number
- CN215975682U CN215975682U CN202121647402.2U CN202121647402U CN215975682U CN 215975682 U CN215975682 U CN 215975682U CN 202121647402 U CN202121647402 U CN 202121647402U CN 215975682 U CN215975682 U CN 215975682U
- Authority
- CN
- China
- Prior art keywords
- slag
- water
- tank
- chilling
- nozzle
- 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.)
- Expired - Fee Related
Links
- 238000005406 washing Methods 0.000 title claims abstract description 36
- 238000002309 gasification Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000002893 slag Substances 0.000 claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 26
- 238000011010 flushing procedure Methods 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 239000003250 coal slurry Substances 0.000 claims abstract description 6
- 238000000746 purification Methods 0.000 claims abstract description 6
- 238000005201 scrubbing Methods 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000001301 oxygen Substances 0.000 claims abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 239000013049 sediment Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 12
- 239000006229 carbon black Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 239000003034 coal gas Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Images
Landscapes
- Industrial Gases (AREA)
Abstract
A gasifier gas scrubbing purification system, comprising: the top of the gasification furnace is provided with a nozzle, and the nozzle is provided with an oxygen inlet and a coal slurry inlet; the lower part of the chilling chamber is communicated with the washing tower laterally after passing through the buffer tank and the cyclone separation device in sequence; a first spraying device and a second spraying device are arranged in the washing tower; the top of the slag collecting tank is connected with the bottom of the chilling chamber, and the bottom of the slag collecting tank is connected to the slag dragging machine; the bottom of the slag conveyor is connected to a chilling water slag settling tank through a pipeline; wherein, the slag settling tank is connected to a flushing port arranged at the upper part of the slag collecting tank through a flushing water pump; the slag settling tank is connected to the water inlet end of the second spraying device through a circulating water pump; the lower part of the washing tower is connected to a flushing port and a chilling water inlet arranged at the upper part of the chilling chamber through a washing water pressurizing pump.
Description
Technical Field
The utility model relates to the technical field of fertilizer production, in particular to a gas washing and purifying system of a gasification furnace.
Background
Synthetic ammonia is an important process for fertilizer production, and is fed by nitrogen from an air separation process and hydrogen from water gas. When preparing water gas, the qualified oxygen from the air separation post is sprayed out at high speed through a nozzle, is mixed and atomized with the water coal slurry from the pulping post in a parallel flow manner, and undergoes the processes of coal slurry temperature rise, water evaporation, coal pyrolysis volatilization, residual carbon gasification, chemical reaction among gases and the like instantly in a gasification furnace to finally generate CO and H2The crude water gas (or synthesis gas and process gas) which is the main component is the main raw material gas for the anhydrous ammonia reaction of the synthetic liquid. The crude water gas is used for producing H by the reaction of CO and water vapor carried by the crude water gas in a shift converter under the conditions of high temperature and high pressure2And CO2While releasing heat.
Wherein, the crude water gas is quenched and washed by chilled water, and can be sent to a conversion working section for use after being purified, otherwise, the carbon black carried by the crude water gas can block the rear working section. In the prior art, after the crude water gas is chilled, quenched and washed, carbon black in the crude water gas is generally separated by a demister baffle plate, the separation and purification effect is poor, and the rear section is easy to block.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a gasification furnace gas washing and purifying system which can effectively reduce the content of carbon black.
The technical scheme adopted by the utility model for solving the technical problem is as follows: a gasifier gas scrubbing purification system, comprising:
the top of the gasification furnace is provided with a nozzle, and the nozzle is provided with an oxygen inlet and a coal slurry inlet;
the lower part of the chilling chamber sequentially passes through the buffer tank and the cyclone separation device and then is communicated with the washing tower in the lateral direction; a first spraying device and a second spraying device are arranged in the washing tower;
the top of the slag collecting tank is connected with the bottom of the chilling chamber, and the bottom of the slag collecting tank is connected to the slag dragging machine; the bottom of the slag conveyor is connected to a chilling water slag settling tank through a pipeline;
wherein the slag settling tank is connected to a flushing port arranged at the upper part of the slag collecting tank through a flushing water pump; the sediment tank is connected to the water inlet end of the second spraying device through a circulating water pump; the lower part of the washing tower is connected to the flushing port and a chilling water inlet arranged at the upper part of the chilling chamber through a washing water pressurizing pump.
Preferably, the cyclonic separating apparatus comprises a primary cyclone and a secondary cyclone.
Preferably, the first spray device is located above the second spray device.
Preferably, a nozzle cooling jacket is arranged outside the nozzle.
The utility model adopts the washing tower to replace a demister, optimizes the process flow, and can reduce the content of carbon black carried by the carbon black to less than or equal to 1mg/Nm after twice washing3The problem of blockage of the rear working section can be effectively avoided, and the resistance rise time of the rear working section is prolonged by about 3 times compared with the conventional resistance rise time. In addition, because the condensed water generated in the subsequent conversion section is used, the temperature of the condensed water is higher, and the temperature of the treated water gas can be better ensured to meet the production requirement of the subsequent conversion section.
Drawings
FIG. 1 is a schematic structural diagram of a gasification furnace gas scrubbing and purifying system according to a preferred embodiment of the present invention;
description of reference numerals: 1. a gasification furnace; 2. a nozzle; 3. a nozzle cooling jacket; 4. a quench chamber; 5. a slag collection tank; 6. a slag conveyor; 7. a buffer tank; 8. a primary cyclone separator; 9. a secondary cyclone separator; 10. a washing tower; 11. a washing water pressure pump;
Detailed Description
The technical scheme of the utility model is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model will be further explained with reference to the drawings.
Please refer to fig. 1.
The utility model relates to a coal gas washing and purifying system of a scale gasification furnace, which comprises a gasification furnace 1, a nozzle 2, a nozzle cooling jacket 3, a chilling chamber 4, a slag collecting tank 5, a slag dragging machine 6, a buffer tank 7, a primary cyclone separator 8, a secondary cyclone separator 9 and a washing tower 10.
Wherein, the top of the gasification furnace 1 is provided with a nozzle 2. The nozzle 2 is provided with an oxygen inlet and a coal slurry inlet. A nozzle cooling jacket 3 is arranged outside the nozzle 2, and cooling water is introduced into the nozzle cooling jacket 3 for cooling. The first-stage cyclone separator 8 and the second-stage cyclone separator 9 form a cyclone separation device.
The lower part of the chilling chamber 4 is communicated with a washing tower 10 through a buffer tank 7 and a cyclone separation device in sequence. A first spraying device and a second spraying device are arranged in the washing tower 10. The top of the slag pot 5 is connected to the bottom of the quench chamber 4. The bottom of the slag collecting tank 5 is connected to a slag dragging machine 6. The bottom of the slag dragging machine 6 is connected to a chilling water slag settling tank through a pipeline.
Wherein the slag settling tank is connected to a flushing port arranged at the upper part of the slag collecting tank 5 through a flushing water pump (not shown). The slag basin is connected to the water inlet end of the second spraying device through a circulating water pump (not shown). The lower part of the washing tower 10 is connected via a washing water pressure pump 11 to the flushing port and the quench water inlet provided in the upper part of the quench chamber 4.
Wherein, the first spray device is positioned above the second spray device. The spray water in the first spray device can come from condensed water generated when the conversion gas in the subsequent conversion section is condensed, namely the condensed water in the conversion section.
In the scheme, by additionally arranging the washing water pump, washing water originally entering the chilling chamber firstly enters washing coal gas from the middle part of the washing tower, and then is sent to the chilling chamber by the additionally arranged washing pump; and meanwhile, conveying condensed water in the conversion section to the upper part of the washing tower to wash the coal gas.
The utility model adopts the washing tower to replace a demister, optimizes the process flow, and can reduce the content of carbon black carried by the carbon black to less than or equal to 1mg/Nm after twice washing3The problem of blockage of the rear working section can be effectively avoided, and the resistance rise time of the rear working section is prolonged by about 3 times compared with the conventional resistance rise time. In addition, because the temperature of the condensed water generated in the subsequent conversion section is higher, the temperature of the treated water gas can be better ensured to meet the production requirement of the subsequent conversion section.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Other parts of the utility model not described in detail are prior art and are not described in detail herein.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A gasifier gas washing clean system which characterized in that includes:
the gasification furnace comprises a gasification furnace (1), wherein a nozzle (2) is arranged at the top of the gasification furnace (1), and an oxygen inlet and a coal slurry inlet are formed in the nozzle (2);
the device comprises a chilling chamber (4), a buffer tank (7), a cyclone separation device and a washing tower (10), wherein the lower part of the chilling chamber (4) is communicated with the washing tower (10) through the buffer tank (7) and the cyclone separation device in sequence from the rear side to the lateral side; a first spraying device and a second spraying device are arranged in the washing tower (10);
the top of the slag collecting tank (5) is connected with the bottom of the chilling chamber (4), and the bottom of the slag collecting tank (5) is connected to the slag dragging machine (6); the bottom of the slag conveyor (6) is connected to a chilling water slag settling tank through a pipeline;
wherein the slag settling tank is connected to a flushing port arranged at the upper part of the slag collecting tank (5) through a flushing water pump; the sediment tank is connected to the water inlet end of the second spraying device through a circulating water pump; the lower part of the washing tower (10) is connected to the flushing port and a chilling water inlet arranged at the upper part of the chilling chamber (4) through a washing water pressurizing pump (11).
2. The gasifier gas scrubbing purification system of claim 1, wherein said cyclone separation means comprises a primary cyclone (8) and a secondary cyclone (9).
3. The gasifier gas scrubbing purification system of claim 1, wherein said first spray means is located above said second spray means.
4. The gasifier gas scrubbing purification system of claim 1, wherein a nozzle cooling jacket (3) is provided outside said nozzle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121647402.2U CN215975682U (en) | 2021-07-19 | 2021-07-19 | Gasification furnace gas washing and purifying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121647402.2U CN215975682U (en) | 2021-07-19 | 2021-07-19 | Gasification furnace gas washing and purifying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215975682U true CN215975682U (en) | 2022-03-08 |
Family
ID=80577629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121647402.2U Expired - Fee Related CN215975682U (en) | 2021-07-19 | 2021-07-19 | Gasification furnace gas washing and purifying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215975682U (en) |
-
2021
- 2021-07-19 CN CN202121647402.2U patent/CN215975682U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2007245732B2 (en) | Gasification reactor and its use | |
| EP2617798B1 (en) | System for deaeration in a flash vessel downstream of a gasifier | |
| CN211545945U (en) | Device for preparing carbon monoxide and hydrogen by cracking methanol | |
| CN102559266B (en) | Method for producing water gas by pure oxygen continuous gasification in fixed bed | |
| CN111847453B (en) | Device and process for preparing ultra-pure carbon monoxide | |
| CN108383139A (en) | The process units and method of ammonium hydrogen carbonate | |
| CN106753569A (en) | Low pressure dry powder coal gasifying process | |
| CN106365164A (en) | Device for preparing high-purity carbon monoxide by pyrolysis of formic acid | |
| CN214457793U (en) | Coal gasification conversion system and coal gasification synthetic ammonia system | |
| CN212581530U (en) | Silicon tetrachloride cold hydrogenation system | |
| CN215975682U (en) | Gasification furnace gas washing and purifying system | |
| CN209906673U (en) | Device for producing crude phenol by sodium phenolate carbon dioxide pressurization method | |
| CN106947541B (en) | Combined method and system for hydrogen production based on low-rank coal pyrolysis water vapor coke quenching water gas | |
| CN110079361A (en) | The method and its equipment of the non-slag gasification production hydrogen-rich synthetic gas of petroleum coke | |
| CN111185070A (en) | NF removal using low temperature HF3System and method for removing impurities from electrolysis gas | |
| CN106422672B (en) | A method of prevent Regeneration System by Heating for Low-Temperature Methanol Wash Process from corroding | |
| CN1260326C (en) | Pressurized gasifying process of polynary slurry | |
| CN211159192U (en) | Processing apparatus of acid water is retrieved to claus sulphur | |
| CN112158848A (en) | Silicon tetrachloride cold hydrogenation system | |
| CN113277553A (en) | Two-stage dust removal device and method for preparing titanium tetrachloride | |
| CN221588422U (en) | System for treating carbonaceous refinery byproducts | |
| CN214270276U (en) | Expansion flash steam processing unit of gas-water separation system | |
| CN218989173U (en) | Device for preparing low-carbon olefin from methanol | |
| CN204752648U (en) | Oil washing of low order pyrolysis of coal gas purifies oil washing tower | |
| CN218901388U (en) | Purification system for chlorosilane hydrolysis byproduct hydrogen chloride |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220308 |