CN211394380U - Fine sediment resource recycle system of coal gasification - Google Patents
Fine sediment resource recycle system of coal gasification Download PDFInfo
- Publication number
- CN211394380U CN211394380U CN201921963671.2U CN201921963671U CN211394380U CN 211394380 U CN211394380 U CN 211394380U CN 201921963671 U CN201921963671 U CN 201921963671U CN 211394380 U CN211394380 U CN 211394380U
- Authority
- CN
- China
- Prior art keywords
- coal
- slurry
- water
- particle
- treatment
- 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.)
- Active
Links
Images
Landscapes
- Liquid Carbonaceous Fuels (AREA)
Abstract
The utility model relates to a thin sediment resource recycle system of coal gasification, include: a black water settling tank; a filtration device; the first particle grinder is used for carrying out primary grinding treatment on the black water, the coal water slurry additive, the biochemical sludge and the coarse coal slurry obtained by filtering treatment; the second particle grinding machine is used for carrying out secondary grinding treatment on the coal slurry obtained by the primary grinding treatment, the raw material coal, the water and the coal water slurry additive; the black water settling tank, the filtering equipment, the first particle grinder and the second particle grinder are sequentially in fluid communication; the second particle grinding machine is in fluid communication with the first particle grinding machine for returning at least a portion of the coal-water slurry resulting from the second grinding process to the first particle grinding machine. The utility model provides a coal gasification fine slag directly slurrying poor stability, easy layering form hard deposit and apparent viscosity problem on the high side, and make coal gasification fine slag obtain resource recycle, biochemical sludge obtains innocent treatment.
Description
Technical Field
The utility model belongs to the technical field of coal gasification, a fine sediment resource recycle system of coal gasification is related to.
Background
In the field of coal chemical industry, the coal water slurry gasification technology is a relatively mature clean coal technology, and the utilization rate of coal is greatly improved. In the process of the water-coal-slurry gasification process, coal is firstly subjected to a pulping process to form water-coal-slurry, then is pumped into a gasification furnace through a high-pressure coal slurry pump, is atomized through a nozzle, meets oxygen for gasification, and undergoes a series of gasification reactions such as rapid temperature rise, moisture evaporation, devolatilization, volatile component combustion, residual carbon combustion and the like under the high-temperature condition of about 1350 ℃ to generate CO + H2Synthesis gas with content of about 80%. Under the action of high temperature and high pressure, unreacted coal ash is melted to form coal slag.
Generally, a coal water slurry gasification process (including a GE gasification technology and a multi-nozzle coal water slurry gasification technology) forms two kinds of coal slag, namely coarse slag and fine slag. The coarse slag is directly transported away by some construction environmental protection companies and is used as a part of cement and a building auxiliary material of a porous material. The fine slag has the characteristics of fine granularity, small viscosity, high ash content and high carbon content, and the dry basis has higher heat value and has a resource recycling prospect. The fine slag is directly treated by an environment-friendly building company, the cost is higher, or the fine slag is sold at low price, and the fine slag is not economical and reasonable enough for chemical enterprises.
During the gasification of the coal water slurry, fine slag exists in the gasified black water, the fine slag is subjected to flash evaporation through a vacuum flash tank, and the residual black water is conveyed to a gravity settling tank through a feeding pump. In the gravity settling tank, a flocculating agent is added, and suspended solids of the black water are settled. Pumping the fine solid particles from the bottom of a sedimentation tank underflow pump to a filter feeding tank, and carrying out solid-liquid separation on the fine solid particles through a filter to obtain filter cake fine slag and filtrate, wherein the solid content of the fine slag is about 50 wt%.
In recent years, many reports have been made on recycling and other uses of the fine coal gasification slag.
The Chinese patent with the application number of 200910020829.7 adopts a gravity separation method to separate the gasified fine slag, and the Chinese patent with the application number of 200910183787.9 adopts a screening machine to screen the gasified fine slag for recycling.
SUMMERY OF THE UTILITY MODEL
In view of the above prior art's shortcoming, the utility model aims to provide a fine sediment resource recycle system of coal gasification solves the direct slurrying poor stability of the fine sediment of coal gasification, easily divides the layer to form hard sediment and apparent viscosity problem on the high side, and makes the fine sediment of coal gasification obtain resource recycle, makes the biochemical sludge that the coal chemical industry enterprise produced obtain the resourceization simultaneously, reduces the effective recycle of quantization, and biochemical sludge obtains innocent treatment, reaches cost reduction and efficiency's purpose.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a coal gasification fine slag resource recycling system comprises:
the black water settling tank is used for carrying out settling filtration treatment on black water containing coal gasification fine slag;
the filtering equipment is used for filtering the black water obtained by the sedimentation treatment;
the first particle grinder is used for carrying out primary grinding treatment on the black water, the coal water slurry additive, the biochemical sludge and the coarse coal slurry obtained by the sedimentation filtration treatment;
the second particle grinding machine is used for carrying out secondary grinding treatment on the coal slurry obtained by the primary grinding treatment, the raw material coal, the water and the coal water slurry additive;
the black water settling tank, the filtration apparatus, the first particle grinder, and the second particle grinder are in sequential fluid communication;
the second particle grinding machine is in fluid communication with the first particle grinding machine and is used for returning at least a portion of the coal-water slurry resulting from the second grinding process to the first particle grinding machine.
Preferably, the first particle mill and the second particle mill are ball mills or rod mills, more preferably rod mills.
Preferably, the method further comprises the following steps: the gasification furnace is used for gasifying and burning at least part of the coal water slurry obtained by the second grinding treatment; the second particle grinder is in fluid communication with the gasifier.
More preferably, at least one of the following technical characteristics is also included:
1) a water-coal-slurry tank and/or a water-coal-slurry delivery pump are/is arranged on a pipeline for communicating the second particle grinder and the gasification furnace;
2) the gasification furnace is a GE coal water slurry gasification furnace or a four-nozzle coal water slurry gasification furnace, and more preferably a four-nozzle coal water slurry gasification furnace.
Further more preferably, in feature 1), when the system includes the water-coal-slurry tank and the water-coal-slurry delivery pump, the water-coal-slurry tank and the water-coal-slurry delivery pump are sequentially provided in a fluid direction on a pipeline communicating the second particle grinder and the gasification furnace.
Still more preferably, a water-coal-slurry valve is arranged on a pipeline for communicating the water-coal-slurry tank with the water-coal-slurry delivery pump.
Further more preferably, in the feature 1), a coal water slurry valve is provided on a pipeline communicating the coal water slurry tank and the gasification furnace. Preferably, the system further comprises at least one of the following technical features:
a) a black water valve and/or a black water delivery pump are/is arranged on a pipeline for communicating the filtering equipment and the first particle grinder; more preferably, when the system comprises the black water valve and the black water delivery pump, the black water valve and the black water delivery pump are sequentially arranged on a pipeline communicating the black water settling tank and the first particle grinder in a fluid direction;
b) a first coal slurry groove and/or a first coal slurry conveying pump are/is arranged on a pipeline which is communicated with the first particle grinding machine and the second particle grinding machine; more preferably, when the system comprises the first coal slurry tank and the first coal slurry delivery pump, the first coal slurry tank and the first coal slurry delivery pump are arranged on a pipeline which is communicated with the first particle grinding machine and the second particle grinding machine in sequence along the fluid direction;
c) a second coal slurry groove and/or a second coal slurry conveying pump are/is arranged on a pipeline which is communicated with the second particle grinding machine and the first particle grinding machine; more preferably, when the system includes the second slurry tank and the second slurry feed pump, the second slurry tank and the second slurry feed pump are sequentially provided in a fluid direction on a pipe connecting the second particle grinder and the first particle grinder.
More preferably, in feature a), the black water transfer pump is a diaphragm pump, a centrifugal pump, or a progressive cavity pump, and even more preferably a centrifugal pump.
More preferably, in the feature b), a first valve is provided on a pipeline communicating the first coal slurry tank and the second particle grinder; further more preferably, when the system comprises the first coal slurry tank and the first coal slurry conveying pump, a first valve is arranged on a pipeline for communicating the first coal slurry tank with the first coal slurry conveying pump.
More preferably, in feature b), the first slurry transport pump is a diaphragm pump, a centrifugal pump or a progressive cavity pump, and even more preferably a diaphragm pump.
More preferably, at least one of the following technical characteristics is also included:
c1) in the characteristic c), a second valve is arranged on a pipeline for communicating the second coal slurry tank with the first particle grinder; further more preferably, when the system comprises the second coal slurry tank and the second coal slurry conveying pump, a second valve is arranged on a pipeline for communicating the second coal slurry tank with the second coal slurry conveying pump;
c2) in feature c), the second slurry transport pump is a diaphragm pump, a centrifugal pump, or a screw pump, and more preferably a diaphragm pump.
The utility model discloses fine sediment of coal gasification resource recycle system make full use of black water in the fine sediment of coal gasification's small granule grinds to superfine particle, only needs lower energy consumption to slurrying together with biochemical sludge, solving the fine sediment of coal gasification and directly slurrying poor stability, the problem of hard sediment of easy branch layer formation also solves the problem that apparent viscosity is on the high side simultaneously. The biochemical sludge plays a part of the role of a dispersant in the pulping process, the dosage of the coal water slurry additive is reduced, the reduction and harmless treatment of the biochemical sludge are realized, and the cost for treating the biochemical sludge in a chemical plant is reduced.
Compared with raw material coal, the coal gasification fine slag has high ash content and low fixed carbon content, and can cause the reduction of the subsequent synthetic gas yield along with the increase of the addition proportion, thereby influencing the economic operation of the gasification furnace. The first grinding treatment and the second grinding treatment, namely two-stage grading grinding, are adopted to enable the tiny particles of the coal gasification fine slag to form superfine particles, and the superfine particles are mixed with the coarse coal slurry, so that the superfine particles can effectively fill gaps among the coarse particles, the stacking efficiency among the particles is improved, reasonable particle size distribution is formed, the concentration of the coal water slurry is improved, the concentration of effective carbon in the coal water slurry raw material is not reduced too much, the yield of synthetic gas of a subsequent gasification furnace is influenced, and the economic operation of the gasification furnace is influenced.
Drawings
FIG. 1 is a first diagram of a system for recycling fine coal gasification slag.
FIG. 2 is a second drawing of a system for recycling fine coal gasification slag.
Reference numerals
1 black water settling tank
2 Filter device
3 first particle grinder
4 second particle grinder
5 gasification furnace
6 water coal slurry tank
7 coal water slurry delivery pump
8 water coal slurry valve
9 black water valve
10 black water delivery pump
11 first coal slurry tank
12 first coal slurry delivery pump
13 second coal slurry tank
14 second slurry delivery pump
15 first valve
16 second valve
Detailed Description
The present invention is further described below by way of specific examples, but is not limited to the following specific examples.
A system for recycling coal gasification fine slag as a resource comprises, as shown in FIG. 1:
a black water settling tank 1 for settling black water containing coal gasification fine slag;
a filtering device 2 for filtering the black water obtained by the sedimentation treatment;
a first particle grinder 3 for performing a first grinding process on the black water, the coal water slurry additive, the biochemical sludge and the coarse coal slurry obtained by the filtration process;
a second particle grinder 4 for carrying out a second grinding treatment on the coal slurry obtained by the first grinding treatment, the raw material coal, water and the coal-water slurry additive;
the black water settling tank 1, the filtering apparatus 2, the first particle mill 3 and the second particle mill 4 are in fluid communication in that order;
the second particle mill 4 is in fluid communication with the first particle mill 3 for returning at least a portion of the coal-water slurry resulting from the second grinding process to the first particle mill 3.
In a preferred embodiment, as shown in fig. 2, the system for recycling coal gasification fine slag includes:
a black water settling tank 1 for carrying out settling filtration treatment on black water containing coal gasification fine slag;
a filtering device 2 for filtering the black water obtained by the sedimentation treatment;
a first particle grinder 3 for carrying out primary grinding treatment on the black water, a coal water slurry additive, biochemical sludge and coarse coal slurry obtained by the sedimentation filtration treatment;
a second particle grinder 4 for carrying out a second grinding treatment on the coal slurry obtained by the first grinding treatment, the raw material coal, water and the coal-water slurry additive;
a gasification furnace 5 for gasifying and burning at least part of the coal water slurry obtained by the second grinding treatment;
the black water settling tank 1, the filtering apparatus 2, the first particle mill 3 and the second particle mill 4 are in fluid communication in that order;
the second particle grinder 4 is in fluid communication with the first particle grinder 3 and is used for returning at least part of the coal water slurry obtained from the second grinding treatment to the first particle grinder 3;
a water-coal-slurry tank 6 and a water-coal-slurry delivery pump 7 are sequentially arranged on a pipeline which communicates the second particle grinder 4 and the gasification furnace 5 according to the fluid direction; a water-coal-slurry valve 8 is arranged on a pipeline for communicating the water-coal-slurry tank 6 with the water-coal-slurry delivery pump 7; a black water valve 9 and a black water delivery pump 10 are sequentially arranged on a pipeline communicating the filtering device 2 and the first particle grinder 3 in a fluid direction;
a first coal slurry tank 11 and a first coal slurry delivery pump 12 are sequentially arranged on a pipeline which communicates the first particle grinder 3 and the second particle grinder 4 in a fluid direction; a first valve 15 is arranged on a pipeline for communicating the first coal slurry tank 11 with the first coal slurry conveying pump 12;
a second coal slurry tank 13 and a second coal slurry delivery pump 14 are sequentially arranged on a pipeline which communicates the second particle grinding mill 4 and the first particle grinding mill 3 in the fluid direction; a second valve 16 is arranged on a pipeline for communicating the second coal slurry tank 13 and the second coal slurry delivery pump 14.
Example 1
A resource recycling method of coal gasification fine slag comprises the following steps:
1) carrying out sedimentation filtration treatment on black water containing coal gasification fine slag, wherein a flocculating agent is not added during the sedimentation filtration treatment, and the black water is concentrated by means of gravity sedimentation and filtration equipment, wherein the solid content of the concentrated coal gasification fine slag is 6 wt%; wherein the fixed carbon content in the dry coal gasification fine slag is 30-35 wt%;
2) adding a coal water slurry additive, biochemical sludge and coarse coal slurry into black water obtained by settling and filtering treatment, and carrying out primary grinding treatment, wherein the average particle size of the coal slurry after the primary grinding treatment is 20 microns, the concentration of the formed slurry is 35%, and the apparent viscosity is 835 Cp; wherein, the coal gasification fine slag in the black water obtained by the sedimentation filtration treatment is calculated by taking dry coal in the coarse coal slurry as a reference, and the blending combustion proportion is 10 wt%; the coal water slurry additive is naphthalene sulfonate, and the coal water slurry additive accounts for 0.6 wt% of the dry basis amount of coal gasification fine slag in black water obtained by settling and filtering treatment; the biochemical sludge is the sludge remained after the wastewater treatment of the chemical plant, and the biochemical sludge is 0.3 wt% of the dry basis amount of the coal gasification fine slag in the black water obtained by the sedimentation filtration treatment; the water content of the biochemical sludge is 95 percent;
3) adding raw material coal, water and a coal water slurry additive into the coal slurry obtained by the first grinding treatment, and carrying out second grinding treatment, wherein the fine particles in the coal slurry obtained by the second grinding treatment are 50% below a 200-mesh sieve, the slurry concentration is 59.8%, and the apparent viscosity is 1035 Cp; wherein the raw material coal is 25 wt% of dry coal in the coarse coal slurry; water accounts for 8 wt% of the dry basis of the raw material coal; the coal water slurry additive accounts for 0.6 wt% of the dry basis of the raw material coal, and is naphthalene sulfonate; at least part of the coal water slurry obtained by the second grinding treatment is used as a coal water slurry raw material;
4) returning at least part of the coal water slurry obtained by the second grinding treatment to the step 2) to be used as coarse coal slurry to be added into black water containing coal gasification fine slag obtained by sedimentation filtration treatment;
5) and (4) carrying out gasification combustion treatment on at least part of the coal water slurry obtained by the second grinding treatment.
In this example, the coal slurry treatment capacity was 200 tons/hr, and the data of the coal water slurry obtained from the first coal slurry tank 10 and the water coal slurry tank 5 are shown in table 1 below.
Example 2
A resource recycling method of coal gasification fine slag comprises the following steps:
1) carrying out sedimentation filtration treatment on black water containing coal gasification fine slag, wherein a flocculating agent is not added during the sedimentation filtration treatment, and the black water is concentrated by means of gravity sedimentation and filtration equipment, wherein the solid content of the concentrated coal gasification fine slag is 15 wt%; wherein the fixed carbon content in the dry coal gasification fine slag is 30-35 wt%;
2) adding water, a coal water slurry additive, biochemical sludge and coarse coal slurry into black water obtained by settling and filtering treatment, and carrying out primary grinding treatment, wherein the average particle size of the coal slurry after the primary grinding treatment is 15 microns, the slurry concentration is 42%, and the apparent viscosity is 923 Cp; wherein, the coal gasification fine slag in the black water obtained by the sedimentation filtration treatment is calculated by taking dry coal in the coarse coal slurry as a reference, and the blending combustion proportion is 10 wt%; the coal water slurry additive is naphthalene sulfonate, and the coal water slurry additive accounts for 0.6 wt% of the dry basis amount of coal gasification fine slag in black water obtained by settling and filtering treatment; the biochemical sludge is residual sludge after chemical plant wastewater treatment, and the biochemical sludge is 0.5 wt% of the dry basis amount of coal gasification fine slag in black water obtained by sedimentation and filtration treatment; the water content of the biochemical sludge is 95 wt%;
3) adding raw material coal, water and a coal water slurry additive into the coal slurry obtained by the first grinding treatment, and carrying out second grinding treatment, wherein the fine particles in the coal slurry after the second grinding treatment are 53% below a 200-mesh sieve, the slurry concentration is 60.2%, and the apparent viscosity is 1057 Cp; wherein the raw material coal is 20 wt% of dry coal in the coarse coal slurry; water accounts for 7 wt% of the dry basis of the raw material coal; the coal water slurry additive accounts for 0.6 wt% of the dry basis of the raw material coal, and is naphthalene sulfonate; at least part of the coal water slurry obtained by the second grinding treatment is used as a coal water slurry raw material;
4) returning at least part of the coal water slurry obtained by the second grinding treatment to the step 2) to be used as coarse coal slurry to be added into black water containing coal gasification fine slag obtained by sedimentation filtration treatment;
5) and (4) carrying out gasification combustion treatment on at least part of the coal water slurry obtained by the second grinding treatment.
In this example, the coal slurry treatment capacity was 200 tons/hr, and the data of the coal water slurry obtained from the first coal slurry tank 10 and the water coal slurry tank 5 are shown in table 1 below.
Example 3
A resource recycling method of coal gasification fine slag comprises the following steps:
1) carrying out sedimentation filtration treatment on black water containing coal gasification fine slag, wherein a flocculating agent is not added during the sedimentation filtration treatment, and the black water is concentrated by means of gravity sedimentation and filtration equipment, wherein the solid content of the concentrated coal gasification fine slag is 20 wt%; wherein the fixed carbon content in the dry coal gasification fine slag is 30-35 wt%;
2) adding water, a coal water slurry additive, biochemical sludge and coarse coal slurry into black water obtained by settling and filtering treatment, and carrying out primary grinding treatment, wherein the average particle size of the coal slurry after the primary grinding treatment is 35um, the concentration of the formed slurry is 48%, and the apparent viscosity is 1098 Cp; wherein, the coal gasification fine slag in the black water obtained by the sedimentation filtration treatment is calculated by taking dry coal in the coarse coal slurry as a reference, and the blending combustion proportion is 10 wt%; the coal water slurry additive is naphthalene sulfonate, and the coal water slurry additive accounts for 0.6 wt% of the dry basis amount of coal gasification fine slag in black water obtained by settling and filtering treatment; the biochemical sludge is residual sludge after chemical plant wastewater treatment, and the biochemical sludge is 0.5 wt% of the dry basis amount of coal gasification fine slag in black water obtained by sedimentation and filtration treatment; the water content of the biochemical sludge is 95 wt%;
3) adding raw material coal, water and a coal water slurry additive into the coal slurry obtained by the first grinding treatment, and carrying out second grinding treatment, wherein the fine particles in the coal slurry after the second grinding treatment are 55% below a 200-mesh sieve, the slurry concentration is 61%, and the apparent viscosity is 1210 Cp; wherein the raw material coal is 14 wt% of dry coal in the coarse coal slurry; water accounts for 9 wt% of the dry basis of the raw material coal; the coal water slurry additive accounts for 0.6 wt% of the dry basis of the raw material coal, and is naphthalene sulfonate; at least part of the coal water slurry obtained by the second grinding treatment is used as a coal water slurry raw material;
4) returning at least part of the coal water slurry obtained by the second grinding treatment to the step 2) to be used as coarse coal slurry to be added into black water containing coal gasification fine slag obtained by sedimentation filtration treatment;
5) and (4) carrying out gasification combustion treatment on at least part of the coal water slurry obtained by the second grinding treatment.
In this example, the coal slurry treatment capacity was 200 tons/hr, and the data of the coal water slurry obtained from the first coal slurry tank 10 and the water coal slurry tank 5 are shown in table 1 below.
Apparent viscosity test method: measuring apparent viscosity by adopting NXS-4C rotational viscometer of Chengdu instrument factory of national center for engineering and technology research of coal water slurry at 20 deg.C and shear rate of 100s-1Measured under the conditions.
The concentration test method comprises the following steps: and measuring the slurry concentration by adopting a GB/T18856.2-2002 coal water slurry quality test method.
Slurry stability (24 hours) test method: the presence of hard precipitates was determined by the rod drop method by inserting a glass rod.
The 24-hour water evolution rate test method comprises the following steps: the 24 hour water separation was measured as the percentage volume of water and slurry after 24 hours.
Fluidity (visual) test method: by rotating the container, it was visually checked whether the slurry flowed with it.
TABLE 1
Claims (10)
1. A fine sediment resource recycle system of coal gasification, its characterized in that includes:
a black water settling tank (1) for settling black water containing coal gasification fine slag;
a filtering device (2) for filtering the black water obtained by the sedimentation treatment;
a first particle grinder (3) for carrying out primary grinding treatment on the black water, the coal water slurry additive, the biochemical sludge and the coarse coal slurry obtained by the filtration treatment;
a second particle grinder (4) for carrying out secondary grinding treatment on the coal slurry obtained by the primary grinding treatment, the raw material coal, the water and the coal-water slurry additive;
the black water settling tank (1), the filtering apparatus (2), the first particle grinder (3) and the second particle grinder (4) are in fluid communication in that order;
the second particle grinding machine (4) is in fluid communication with the first particle grinding machine (3) for returning at least a portion of the coal-water slurry resulting from the second grinding process to the first particle grinding machine (3).
2. The recycling system for coal gasification fine slag according to claim 1, wherein the first particle mill (3) and the second particle mill (4) are ball mills or rod mills.
3. The recycling system for coal gasification fine slag according to claim 1, further comprising: a gasification furnace (5) used for gasifying and burning at least part of the water-coal-slurry obtained by the second grinding treatment; the second particle grinder (4) is in fluid communication with the gasifier (5).
4. The recycling system for coal gasification fine slag according to claim 3, further comprising at least one of the following technical features:
1) a water-coal-slurry tank (6) and/or a water-coal-slurry delivery pump (7) are/is arranged on a pipeline for communicating the second particle grinder (4) and the gasification furnace (5);
2) the gasification furnace is a GE coal water slurry gasification furnace or a four-nozzle coal water slurry gasification furnace.
5. The recycling system for coal gasification fine slag as claimed in claim 4, characterized in that in 1), a water-coal-slurry valve (8) is arranged on a pipeline communicating the water-coal-slurry tank (6) and the gasification furnace (5).
6. The recycling system for coal gasification fine slag according to any one of claims 1 to 5, further comprising at least one of the following technical features:
a) a black water valve (9) and/or a black water delivery pump (10) are/is arranged on a pipeline which communicates the filtering device (2) and the first particle grinder (3);
b) a first coal slurry groove (11) and/or a first coal slurry conveying pump (12) are/is arranged on a pipeline for communicating the first particle grinding machine (3) and the second particle grinding machine (4);
c) a second coal slurry tank (13) and/or a second coal slurry delivery pump (14) are arranged on a pipeline communicating the second particle grinding mill (4) and the first particle grinding mill (3).
7. The recycling system for coal gasification fine slag as recited in claim 6, wherein in a), the black water transfer pump (10) is a diaphragm pump, a centrifugal pump or a screw pump.
8. The recycling system for coal gasification fine slag according to claim 6, wherein in b), a first valve (15) is provided on a pipeline connecting the first coal slurry tank (11) and the second particle mill (4).
9. The recycling system for coal gasification fine slag as recited in claim 6, wherein in b), the first slurry transfer pump (12) is a diaphragm pump, a centrifugal pump or a screw pump.
10. The recycling system for coal gasification fine slag according to claim 6, further comprising at least one of the following technical features:
c1) in the characteristic c), a second valve (16) is arranged on a pipeline for communicating the second coal slurry tank (13) with the first particle grinding machine (3);
c2) in the characteristic c), the second coal slurry conveying pump (14) is a diaphragm pump, a centrifugal pump or a screw pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921963671.2U CN211394380U (en) | 2019-11-13 | 2019-11-13 | Fine sediment resource recycle system of coal gasification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921963671.2U CN211394380U (en) | 2019-11-13 | 2019-11-13 | Fine sediment resource recycle system of coal gasification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211394380U true CN211394380U (en) | 2020-09-01 |
Family
ID=72210466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921963671.2U Active CN211394380U (en) | 2019-11-13 | 2019-11-13 | Fine sediment resource recycle system of coal gasification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211394380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114426892A (en) * | 2020-10-29 | 2022-05-03 | 清华大学 | Coal water slurry, method for preparing coal water slurry and application thereof |
-
2019
- 2019-11-13 CN CN201921963671.2U patent/CN211394380U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114426892A (en) * | 2020-10-29 | 2022-05-03 | 清华大学 | Coal water slurry, method for preparing coal water slurry and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105524669B (en) | Coal gasification fine slag sorts and the method for reuse | |
| CN112795403A (en) | Resource recycling system and method for coal gasification fine slag | |
| CN109536224B (en) | Coal water slurry prepared from hazardous waste coal tar residues, and preparation method and application method thereof | |
| CN209128384U (en) | A kind of preparation system being interrupted grain size distribution high-concentration coal-water slurry | |
| CN213350162U (en) | Fine sediment recycle system of coal slurry gasification | |
| CN103060031A (en) | Papermaking black liquor modified sludge-petroleum coke slurry and preparation method thereof | |
| CN103497791B (en) | A kind of Novel sludge coal-water slurry and preparation method thereof | |
| CN111534342A (en) | High-concentration coal water slurry and preparation method and application thereof | |
| CN211394380U (en) | Fine sediment resource recycle system of coal gasification | |
| CN100534572C (en) | Boron-ore-slurry solid-liquid separation method | |
| CN204298355U (en) | A kind of preparation system of sludge water-coal-slurry | |
| CN103949460A (en) | Device and method for producing regenerative electrolyte from aluminum-electrolysis carbon residues | |
| CN103865598B (en) | A kind of brown coal prepare the method for high-concentration coal-water slurry | |
| CN108217874A (en) | A kind of Desliming method of coal gasification fine slag | |
| CN210875709U (en) | Carbide slag edulcoration processing system | |
| CN113773888B (en) | Pretreatment device and pretreatment method for coal chemical waste slurry | |
| CN101956992B (en) | Low rank coal fuel coal water slurry and gasified coal water slurry complete production unit | |
| CN201762299U (en) | Complete set of equipment for producing coal water slurry fuel and gasification coal water slurry by low rank coal | |
| CN213357476U (en) | Gasification fine slag recycling system | |
| CN113736528B (en) | Preparation method and application of coal water slurry and water gas | |
| CN103911195A (en) | Method for preparing high-concentration coal water slurry by using low rank coal | |
| CN111659707B (en) | Gasification fine slag carbon-ash separation and high-carbon product dehydration integrated device and method | |
| CN110218594B (en) | System and method for preparing gasification type coal water slurry from high ash fusion point coal slurry | |
| CN106635208A (en) | Process for directly preparing coal water slurry from underflow of concentrator of coal preparation plant | |
| CN203034063U (en) | Recycling system for steelmaking sludge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |