CN210964185U - Coal gasification black water filter - Google Patents
Coal gasification black water filter Download PDFInfo
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- CN210964185U CN210964185U CN201921833127.6U CN201921833127U CN210964185U CN 210964185 U CN210964185 U CN 210964185U CN 201921833127 U CN201921833127 U CN 201921833127U CN 210964185 U CN210964185 U CN 210964185U
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- filter
- filter screen
- black water
- shell
- coal gasification
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- 239000010866 blackwater Substances 0.000 title claims abstract description 70
- 238000002309 gasification Methods 0.000 title claims abstract description 41
- 239000003245 coal Substances 0.000 title claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000011148 porous material Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 239000010865 sewage Substances 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model belongs to a coal gasification black water filter; the filter comprises a filter shell, wherein a filter inner part is arranged in the filter shell; a gasification black water inlet pipeline with a water inlet valve is arranged on the filter shell corresponding to one side of the internal filtering element, and a gasification black water outlet pipeline with a water outlet valve is arranged on the filter shell corresponding to the upper part of the other side of the internal filtering element; the filter internals comprise an outer filter screen fixedly arranged in the filter shell and an inner filter screen which is attached to the inner side of the outer filter screen and can move; the filter pore size is flexibly adjusted according to the working condition requirement by adopting the mode of combining the outer filter screen and the inner filter screen, the blocking condition is judged according to the pressure difference of the inlet and the outlet, the filter pore size is adjusted, the service cycle is prolonged, and the matched air cleaning device realizes the advantages of non-disassembly cleaning and reduction of the labor intensity of personnel.
Description
Technical Field
The utility model belongs to the technical field of coal gasification accessory part, concretely relates to coal gasification black water filter.
Background
The black water is liquid discharged from a gasification furnace, a cyclone separator and a water washing tower of the coal gasification device, contains a large amount of solid particles, is easy to cause blockage of pipelines and equipment, and can be recycled after being filtered.
At present, a black water filter is generally installed on a black water pipeline, an internal filter screen of the black water filter is a filter screen with a fixed size, the black water filter cannot be flexibly applied to multi-working condition requirements, and when the black water filter is used, the blockage and scaling conditions of the filter are judged by arranging a differential pressure sensor at an inlet and an outlet of the black water filter. The black water contains a large amount of calcium and magnesium ions, so that the black water is easy to scale with solid particles to block a filter, the pressure difference between an inlet and an outlet is increased, the filtering effect and efficiency are reduced, and the effluent flow cannot be increased when the blockage is serious; in the face of the problems of rising of the pressure difference of an inlet and an outlet of the black water filter, blockage of a filter screen of an internal part and the like, the problems can be solved only by disassembling, washing, replacing the filter screen and the like, and the defects of frequent disassembly and high labor intensity of personnel exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect among the prior art, and provide a mode that adopts outer filter screen and interior filter screen to combine requires nimble filtration aperture of adjusting according to the operating mode, judges the jam condition according to inlet and outlet pressure differential to adjustment filtration aperture extension life cycle, and supporting air cleaning device realizes not dismantling and can wash, reduces personnel intensity of labour's coal gasification black water filter.
The purpose of the utility model is realized like this: the filter comprises a filter shell, wherein a filter inner part is arranged in the filter shell; a gasification black water inlet pipeline with a water inlet valve is arranged on the filter shell corresponding to one side of the internal filtering element, and a gasification black water outlet pipeline with a water outlet valve is arranged on the filter shell corresponding to the upper part of the other side of the internal filtering element; the filter internals include fixed setting in the outer filter screen of filter casing and laminating in the inboard interior filter screen that just can remove of outer filter screen.
Furthermore, the outer filter screen is of a cylinder structure with an opening at the upper part, and a baffle connected with the inner wall of the filter shell is arranged on the outer side of the upper part of the cylinder structure; the bottom plate is arranged at the inner bottom of the cylinder structure.
Further, the bottom plate is a blind plate or a sieve plate; the ratio of the width of the baffle to the diameter of the outer filter screen is 1: 3-4; the inner diameter of the outer filter screen is equal to the outer diameter of the inner filter screen; the thickness of outer filter screen is unanimous with the thickness of interior filter screen, and the thickness of outer filter screen is 2 ~ 5 mm.
Furthermore, the aperture of the filter holes in the upper part of the outer filter screen is consistent with that of the filter holes in the inner filter screen, the aperture of the filter holes in the inner filter screen is 8-10 mm, the interval between two adjacent rows of filter holes is 8-10 mm, and the apertures of the filter holes in the two rows in the lowest part of the outer filter screen are 3-5 mm.
Furthermore, the aperture of the sieve pore of the sieve plate is smaller than that of the filter pore of the inner filter screen.
Further, the top height of the outer filter screen is the same as that of the baffle, and the top height of the inner filter screen is 8-10 mm greater than that of the baffle.
Furthermore, the inner filter screen is a cylinder unit with openings at the upper part and the lower part, a plurality of support rods are arranged on the inner wall of the cylinder unit, and the plurality of support rods are respectively connected with a lifting rod arranged in the middle part of the inside of the cylinder unit through corresponding cross rods; the top of the lifting rod penetrates through the top of the filter shell and is connected with a hand wheel arranged outside the filter shell; a sealing packing layer is arranged between the filter shell and the lifting rod, and a sealing bolt matched with the filter shell is arranged at the upper part of the sealing packing layer.
Furthermore, the number of the cross rods is four, and the included angle between every two adjacent cross rods is 90 degrees; the upper part of the lifting rod is provided with scales.
Furthermore, a tee joint is arranged on a gasified black water outlet pipeline between the water outlet valve and the filter shell, a gas inlet pipeline with a gas inlet valve is arranged at the third end of the tee joint, an exhaust pipeline with a gas outlet valve is arranged on the lower filter shell of the gasified black water inlet pipeline, and a sewage discharge pipeline with a sewage discharge valve is arranged at the bottom of the filter shell; the pipe diameters of the gasified black water inlet pipeline and the gasified black water outlet pipeline are the same;
furthermore, the top of the filter shell is provided with a flange, and the top of the filter shell is connected with the flange through bolts.
The utility model discloses a mode that adopts outer filter screen and interior filter screen to combine requires nimble filtration aperture of adjusting according to the operating mode, judges the jam condition according to exit pressure differential to adjustment filtration aperture increase of service life, and supporting air cleaning device realizes not dismantling and can wash, reduces personnel intensity of labour's advantage.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic view of the position connection relationship between the lifting rod, the cross rod and the supporting rod of the present invention.
Fig. 4 is a schematic structural diagram of the outer filter screen and the inner filter screen of the present invention.
Fig. 5 is a schematic diagram of the filtration pores during the initial stage of filtration in the filtration method of the present invention.
Fig. 6 is a schematic diagram of the filtration pores during the filtration operation stage of the filtration method of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings, in which like reference numerals refer to like parts in the drawings. For the sake of simplicity, only the parts related to the utility model are schematically shown in the drawings, and they do not represent the actual structure as a product.
As shown in fig. 1, 2, 3 and 4, the utility model relates to a coal gasification black water filter, which comprises a filter housing 12, wherein a filter inner part is arranged inside the filter housing 12; a gasified black water inlet pipeline with a water inlet valve 4 is arranged on the filter shell 12 corresponding to one side of the internal filtering piece, and a gasified black water outlet pipeline with a water outlet valve 9 is arranged on the filter shell 12 corresponding to the upper part of the other side of the internal filtering piece; the filter inner comprises an outer filter screen 11 fixedly arranged in a filter shell 12 and an inner filter screen 13 which is attached to the inner side of the outer filter screen 11 and can move.
Furthermore, the outer filter screen 11 is a cylinder structure with an opening at the upper part, and a baffle 10 connected with the inner wall of the filter shell 12 is arranged at the outer side of the upper part of the cylinder structure; the bottom plate 17 is arranged at the inner bottom of the cylinder structure.
Further, the bottom plate 17 is a blind plate or a sieve plate; the ratio of the width of the baffle 10 to the diameter of the outer filter screen 11 is 1: 3-4; the inner diameter of the outer filter screen 11 is equal to the outer diameter of the inner filter screen 13; the thickness of outer filter screen 11 is unanimous with the thickness of interior filter screen 13, and the thickness of outer filter screen 11 is 2 ~ 5 mm.
Further, the aperture of the filter holes on the upper portion of the outer filter screen 11 is consistent with that of the filter holes of the inner filter screen 13, the aperture of the filter holes of the inner filter screen 13 is 8-10 mm, the interval between two adjacent rows of filter holes is 8-10 mm, and the apertures of the filter holes of the two rows on the lowest portion of the outer filter screen 11 are 3-5 mm.
Further, the aperture of the sieve pore of the sieve plate is smaller than the aperture of the filter pore of the inner filter screen 13.
Further, the top height of the outer filter screen 11 is the same as that of the baffle 10, and the top height of the inner filter screen 13 is 8-10 mm greater than that of the baffle 10.
Furthermore, the inner filter screen 13 is a cylinder unit with openings at the upper and lower parts, a plurality of support rods 15 are arranged on the inner wall of the cylinder unit, and the plurality of support rods 15 are respectively connected with the lifting rod 1 arranged at the middle part in the cylinder unit through the corresponding cross rods 16; the top of the lifting rod 1 passes through the top of the filter shell 12 and is connected with a hand wheel 6 arranged outside the filter shell 12; a sealing filler layer 7 is arranged between the filter shell 12 and the lifting rod 1, and a sealing bolt 2 matched with the filter shell 12 is arranged at the upper part of the sealing filler layer 7.
Furthermore, the number of the cross bars 16 is four, and the included angle between every two adjacent cross bars 16 is 90 degrees; the upper part of the lifting rod 1 is provided with a scale 18.
Furthermore, a tee joint 19 is arranged on a gasified black water outlet pipeline between the water outlet valve 9 and the filter shell 12, an air inlet pipeline with an air inlet valve 8 is arranged at the third end of the tee joint 19, an exhaust pipeline with an air outlet valve 5 is arranged on the lower filter shell 12 of the gasified black water inlet pipeline, and a sewage discharge pipeline with a sewage discharge valve 14 is arranged at the bottom of the filter shell 12; the pipe diameters of the gasified black water inlet pipeline and the gasified black water outlet pipeline are the same; the top of the filter shell 12 is a flange 3, and the top of the filter shell 12 is connected with the flange 3 through bolts.
A filtering method of a coal gasification black water filter comprises the following steps:
step 1: when the coal gasification black water is in the filtering stage, the air inlet valve 8, the air outlet valve 5 and the blow-down valve 14 are closed, the coal gasification black water enters the filter shell 12 through the water inlet valve 4 and is discharged out of the filter shell 12 through the filtering internal parts and the water outlet valve 9; the coal gasification black water filtering stage comprises a filtering initial stage, a filtering operation stage and a filtering final stage;
step 2: the scale on the lifting rod 1 is 0-10 mm, the scale on the lifting rod 1 is 0 in an initial state, the filtering holes in the outer filtering net 11 and the inner filtering net 13 are not overlapped at all, and the filtering holes in the outer filtering net 11 are blocked by the inner filtering net 13; as shown in fig. 5, when the initial stage of filtration is performed, the lifting rod 1 is controlled to lift by the hand wheel 6, so that the scale on the lifting rod 1 is displayed to be 3 mm, at this time, the filter holes in the outer filter screen 11 and the inner filter screen 13 are partially overlapped, the aperture area of the filter hole is V1, and at this time, the pressure difference between the black water inlet pipeline and the gasified black water outlet pipeline is 10-15 kpa;
and step 3: coal gasification black water continuously enters the filter shell 12, filter holes are blocked after the coal gasification black water continuously runs for a period of time, when the pressure difference between a black water inlet pipeline and a coal gasification black water outlet pipeline is 100-110 kpa, the lifting rod 1 is controlled by the hand wheel 6 to lift, so that the scale on the lifting rod 1 is displayed as 8 mm, as shown in figure 6, at the moment, in the filtration running stage, filter holes in the outer filter screen 11 and the inner filter screen 13 are partially overlapped, the aperture area of the filter holes is V2, and V2 is larger than V1; under the action of the pressure of the coal gasification black water, the blockage is flushed away, the area of V2 is enlarged, and the pressure difference between the black water inlet pipeline and the coal gasification black water outlet pipeline is changed to 10-20 kpa;
and 4, step 4: the coal gasification black water continuously enters the filter shell 12, the filter holes are blocked after the coal gasification black water continuously runs for a period of time, when the pressure difference between the black water inlet pipeline and the coal gasification black water outlet pipeline is 100-110 kpa, the lifting rod 1 is controlled by the hand wheel 6 to lift, the scale on the lifting rod 1 is displayed as 10mm, at the final stage of filtration, the filter holes in the outer filter screen 11 and the inner filter screen 13 are completely overlapped, and under the condition that the blockage is flushed away and the filter holes are completely opened under the pressure action of the coal gasification black water, the pressure difference between the black water inlet pipeline and the coal gasification black water outlet pipeline is changed into 10-20 kpa;
and 5: the coal gasification black water continuously enters the filter shell 12, and when the pressure difference between the black water inlet pipeline and the coal gasification black water outlet pipeline is 100-110 kpa, the blockage of the filter holes can be judged; at the moment, entering a cleaning state;
step 6: when the washing state is entered, the water inlet valve 4 and the water outlet valve 9 are closed, the air inlet valve 8, the air outlet valve 5 and the sewage discharge valve 14 are opened, and the scale on the lifting rod 1 is 10 mm; residual black water and solid particles in the filter shell 12 are discharged through a blowdown valve 14;
and 7: closing the blowoff valve 14, and introducing compressed air of 1.0-3.0Mpa into the air inlet pipeline with the air inlet valve 8, wherein the compressed air passes through the completely overlapped filtering holes and is discharged through the air outlet valve 5; during the process of flushing with the compressed air, particles blocked at the filter holes are flushed into the bottom of the filter housing 12; the flow rate of the compressed air is 200-300m for cultivation/min;
and 8: the time for introducing the compressed air in each time in the step 7 is 5 min; the number of times of introducing compressed air in each cleaning period is 4-6 times;
and step 9: after the cleaning period in the step 8 is finished, opening a drain valve 14 to discharge solid particles or scale sheets remained in the filter shell 12;
step 10: when the solid particles or scale pieces remained in the discharge filter shell 12 in the step 9 are completely discharged, the blowoff valve 14 is closed, and the steps 2 to 5 are repeated to continuously filter the coal gasification black water.
The utility model can flexibly adjust the filtering aperture according to the working condition requirement by combining the fixed outer filtering net and the movable inner filtering net; the blocking condition is judged according to the pressure difference between the inlet and the outlet, and the filtering aperture is adjusted, so that the service cycle of the utility model is prolonged; meanwhile, the utility model can be cleaned without disassembly through a matched air cleaning device; the aperture of the filter hole can be adjusted by a hand wheel.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected," "connecting," and the like are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; or communication between the interior of the two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific situation. The above examples are only specific illustrations of feasible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments, modifications and alterations without departing from the technical spirit of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. A coal gasification black water filter comprising a filter housing (12), characterized in that: the interior of the filter shell (12) is provided with a filter inner part;
a gasification black water inlet pipeline with a water inlet valve (4) is arranged on the filter shell (12) corresponding to one side of the internal filtering piece, and a gasification black water outlet pipeline with a water outlet valve (9) is arranged on the filter shell (12) corresponding to the upper part of the other side of the internal filtering piece;
the filter inner part comprises an outer filter screen (11) fixedly arranged in the filter shell (12) and an inner filter screen (13) which is attached to the inner side of the outer filter screen (11) and can move.
2. The coal gasification black water filter according to claim 1, wherein: the outer filter screen (11) is of a cylinder structure with an opening at the upper part, and a baffle (10) connected with the inner wall of the filter shell (12) is arranged on the outer side of the upper part of the cylinder structure; the bottom plate (17) is arranged at the inner bottom of the cylinder structure.
3. The coal gasification black water filter according to claim 2, wherein: the bottom plate (17) is a blind plate or a sieve plate; the ratio of the width of the baffle (10) to the diameter of the outer filter screen (11) is 1: 3-4; the inner diameter of the outer filter screen (11) is equal to the outer diameter of the inner filter screen (13); the thickness of the outer filter screen (11) is consistent with that of the inner filter screen (13), and the thickness of the outer filter screen (11) is 2-5 mm.
4. The coal gasification black water filter according to claim 3, wherein: the filter hole aperture of outer filter screen (11) upper portion is unanimous with the filter hole aperture of interior filter screen (13), and the filter hole aperture of interior filter screen (13) is 8 ~ 10mm, and the interval between two adjacent rows of filter holes is 8 ~ 10mm, the filter hole aperture of two rows of outer filter screen (11) bottommost is 3 ~ 5 mm.
5. The coal gasification black water filter according to claim 3, wherein: the aperture of the sieve pore of the sieve plate is smaller than that of the inner filter screen (13).
6. The coal gasification black water filter according to claim 3, wherein: the top height of the outer filter screen (11) is the same as that of the baffle (10), and the top height of the inner filter screen (13) is 8-10 mm greater than that of the baffle (10).
7. The coal gasification black water filter according to claim 1, wherein: the inner filter screen (13) is a cylinder unit with openings at the upper part and the lower part, a plurality of supporting rods (15) are arranged on the inner wall of the cylinder unit, and the plurality of supporting rods (15) are respectively connected with a lifting rod (1) arranged in the middle part of the inside of the cylinder unit through corresponding cross rods (16); the top of the lifting rod (1) penetrates through the top of the filter shell (12) and is connected with a hand wheel (6) arranged outside the filter shell (12); a sealing packing layer (7) is arranged between the filter shell (12) and the lifting rod (1), and a sealing bolt (2) matched with the filter shell (12) is arranged at the upper part of the sealing packing layer (7).
8. The coal gasification black water filter according to claim 7, wherein: the number of the cross rods (16) is four, and the included angle between every two adjacent cross rods (16) is 90 degrees; the upper part of the lifting rod (1) is provided with scales (18).
9. The coal gasification black water filter according to claim 1, wherein: a tee joint (19) is arranged on a gasified black water outlet pipeline between the water outlet valve (9) and the filter shell (12), an air inlet pipeline with an air inlet valve (8) is arranged at the third end of the tee joint (19), an exhaust pipeline with an air outlet valve (5) is arranged on the lower filter shell (12) of the gasified black water inlet pipeline, and a sewage discharge pipeline with a sewage discharge valve (14) is arranged at the bottom of the filter shell (12); the pipe diameters of the gasified black water inlet pipeline and the gasified black water outlet pipeline are the same;
the top of the filter shell (12) is provided with a flange plate (3), and the top of the filter shell (12) is connected with the flange plate (3) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921833127.6U CN210964185U (en) | 2019-10-29 | 2019-10-29 | Coal gasification black water filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921833127.6U CN210964185U (en) | 2019-10-29 | 2019-10-29 | Coal gasification black water filter |
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| Publication Number | Publication Date |
|---|---|
| CN210964185U true CN210964185U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921833127.6U Active CN210964185U (en) | 2019-10-29 | 2019-10-29 | Coal gasification black water filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110559721A (en) * | 2019-10-29 | 2019-12-13 | 河南心连心化学工业集团股份有限公司 | Coal gasification black water filter and filtering method |
-
2019
- 2019-10-29 CN CN201921833127.6U patent/CN210964185U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110559721A (en) * | 2019-10-29 | 2019-12-13 | 河南心连心化学工业集团股份有限公司 | Coal gasification black water filter and filtering method |
| CN110559721B (en) * | 2019-10-29 | 2023-09-22 | 河南心连心化学工业集团股份有限公司 | Coal gasification black water filter and filtering method |
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