CN220738004U - Self-cleaning system of fly ash washing centrifuge free of external water supplementing - Google Patents
Self-cleaning system of fly ash washing centrifuge free of external water supplementing Download PDFInfo
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- CN220738004U CN220738004U CN202322254562.6U CN202322254562U CN220738004U CN 220738004 U CN220738004 U CN 220738004U CN 202322254562 U CN202322254562 U CN 202322254562U CN 220738004 U CN220738004 U CN 220738004U
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- fly ash
- primary
- storage tank
- washing
- ash water
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- 238000005406 washing Methods 0.000 title claims abstract description 82
- 239000010881 fly ash Substances 0.000 title claims abstract description 78
- 238000004140 cleaning Methods 0.000 title claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 230000001502 supplementing effect Effects 0.000 title description 3
- 239000007788 liquid Substances 0.000 claims abstract description 97
- 238000000926 separation method Methods 0.000 claims abstract description 80
- 239000011268 mixed slurry Substances 0.000 claims abstract description 31
- 239000011343 solid material Substances 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims 1
- 230000003020 moisturizing effect Effects 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract description 10
- 239000013589 supplement Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of fly ash treatment, and discloses a self-cleaning system of an external water supplementing-free fly ash washing centrifuge, which comprises a mixed slurry tank, a primary fly ash washing centrifuge, a secondary fly ash washing centrifuge, a primary separation liquid storage tank and a secondary separation liquid storage tank, wherein the mixed slurry tank is connected to the primary fly ash washing centrifuge through a pipeline and a primary feed pump, a liquid outlet of the primary fly ash washing centrifuge is connected to the primary separation liquid storage tank, the primary separation liquid storage tank is connected to the secondary fly ash washing centrifuge through a pipeline and a secondary feed pump, a liquid outlet of the secondary fly ash washing centrifuge is connected to the secondary separation liquid storage tank, and the primary separation liquid storage tank is also connected to a pipeline between the primary feed pump and the mixed slurry tank through a cleaning circulating pipe. The utility model does not need additional water supplement when cleaning, and can separate and output the solid materials in the slurry, thereby avoiding the loss of the solid materials in the slurry.
Description
Technical Field
The utility model belongs to the technical field of fly ash treatment, and particularly relates to a self-cleaning system of an external water supplementing-free fly ash washing centrifuge.
Background
Existing fly ash treatment systems often use a two-stage separation structure to effect solid-liquid separation of the fly ash mixed slurry, with a two-stage water-wash centrifuge, such as a horizontal screw centrifuge. These solid-liquid separation devices require cleaning after use to wash away residual mixed slurry and solid materials therein. In the prior art, an additional water supplementing cleaning mode is generally adopted, namely, an external pipeline or a cleaner is directly used for adding water to clean the solid-liquid separation devices, and the cleaned liquid is directly discharged. Therefore, although the cleaning requirements can be met, on one hand, the pipeline and the cleaner are required to be filled, water is additionally supplemented, and the cost is increased. In addition, the direct discharge of the liquid after washing can lead to the unavailability of residual slurry and solid materials, resulting in certain losses.
Disclosure of Invention
The utility model provides a self-cleaning system of a fly ash water-washing centrifuge without external water supplement, which is used for solving the technical problems that in the prior art, a water-washing centrifuge can only be directly cleaned by adding water, the cleaning cost is high, and residual materials in the centrifuge can not be reused easily.
The self-cleaning system of the external water supplementing-free fly ash washing centrifugal machine comprises a mixed slurry tank, a primary fly ash washing centrifugal machine, a secondary fly ash washing centrifugal machine, a primary separation liquid storage tank and a secondary separation liquid storage tank, wherein the mixed slurry tank is connected to the primary fly ash washing centrifugal machine through a pipeline and a primary feed pump, a liquid outlet of the primary fly ash washing centrifugal machine is connected to the primary separation liquid storage tank, the primary separation liquid storage tank is connected to the secondary fly ash washing centrifugal machine through a pipeline and a secondary feed pump, a liquid outlet of the secondary fly ash washing centrifugal machine is connected to the secondary separation liquid storage tank, and the primary separation liquid storage tank is also connected to a pipeline between the primary feed pump and the mixed slurry tank through a cleaning circulating pipe.
Preferably, the mixed slurry tank is connected to the primary feed pump through a mixed slurry discharging pipe, a liquid outlet of the cleaning circulating pipe is connected to the mixed slurry discharging pipe, control valves positioned at the upstream and downstream of the liquid outlet are arranged on the mixed slurry discharging pipe, and the cleaning circulating pipe is also provided with a control valve.
Preferably, the primary separation liquid storage tank outputs liquid in the primary separation liquid storage tank through a primary separation liquid discharge pipe, the primary separation liquid discharge pipe is provided with two discharge branches, one discharge branch is connected with the cleaning circulating pipe, the other discharge branch is connected to the secondary feed pump, and the two discharge branches are provided with control valves.
Preferably, the primary feed pump is connected to the feed inlet of the primary fly ash water-washing centrifuge through a primary separation feed pipe, the secondary feed pump is connected to the feed inlet of the secondary fly ash water-washing centrifuge through a secondary separation feed pipe, and control valves are arranged on the primary separation feed pipe and the secondary separation feed pipe.
Preferably, the solid outlets of the primary fly ash water-washing centrifugal machine and the secondary fly ash water-washing centrifugal machine are both connected to the same solid material storage tank.
Preferably, the fly ash water-washing centrifuge is a horizontal spiral centrifuge.
The utility model has the following advantages: according to the utility model, in a cleaning state, the separation liquid generated by the primary fly ash water-washing centrifugal machine is used as a cleaning liquid, the primary fly ash water-washing centrifugal machine in operation is used for solid-liquid separation, the separated cleaning liquid can be recycled under the condition that no additional water is added from the outside for direct cleaning, namely, the primary fly ash water-washing centrifugal machine is circularly cleaned, so that not only is the residual mixed slurry and solid materials washed out, but also the solid-liquid separation of the materials kept, the obtained object materials are output as products through a system, but the cleaning liquid is clear in the circulating process, thereby being capable of being directly used as the cleaning liquid of the secondary fly ash water-washing centrifugal machine, and cleaning the secondary fly ash water-washing centrifugal machine under the condition that the secondary fly ash water-washing centrifugal machine is operated, and meanwhile, the primary fly ash water-washing centrifugal machine is cleaned before, so that on one hand, the residual slurry is washed out, on the other hand, the additional water is not needed, and the solid materials in the slurry are separated and output, and the loss of the solid materials in the slurry is avoided. Thereby solving the problems of higher cleaning cost and partial product loss in the prior art.
Drawings
FIG. 1 is a schematic diagram of the self-cleaning system of the fly ash water-washing centrifuge without external water supplement.
The marks in the drawings are: 1. the device comprises a mixed slurry tank, a first-stage feed pump, a first-stage fly ash water-washing centrifugal machine, a first-stage separation liquid storage tank, a second-stage feed pump, a second-stage fly ash water-washing centrifugal machine, a solid material storage tank, a second-stage separation liquid storage tank, a mixed slurry discharging pipe, a first-stage separation feeding pipe, a first-stage cleaning circulating pipe, a second-stage separation feeding pipe, a first-stage separation liquid discharging pipe, a second-stage separation liquid discharging pipe, a first-stage separation liquid storage tank, a second-stage separation liquid storage tank, a first-stage cleaning circulating pipe, a second-stage separation liquid storage tank and a first-stage separation liquid discharging pipe.
Detailed Description
The following detailed description of the embodiments of the utility model, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate, and thorough understanding of the inventive concepts and aspects of the utility model by those skilled in the art.
As shown in fig. 1, the utility model provides a self-cleaning system of an external water supplementing-free fly ash water-washing centrifuge, which comprises a mixed slurry tank 1, a primary fly ash water-washing centrifuge 3, a secondary fly ash water-washing centrifuge 6, a primary separation liquid storage tank 4 and a secondary separation liquid storage tank 8, wherein the mixed slurry tank 1 is connected to the primary fly ash water-washing centrifuge 3 through a pipeline and a primary feed pump 2, a liquid outlet of the primary fly ash water-washing centrifuge 3 is connected to the primary separation liquid storage tank 4, the primary separation liquid storage tank 4 is connected to the secondary fly ash water-washing centrifuge 6 through a pipeline and a secondary feed pump 5, a liquid outlet of the secondary fly ash water-washing centrifuge 6 is connected to the secondary separation liquid storage tank 8, and the primary separation liquid storage tank 4 is also connected to a pipeline between the primary feed pump 2 and the mixed slurry tank 1 through a cleaning circulation pipe 11.
The mixed slurry tank 1 is connected to the primary feed pump 2 through a mixed slurry discharging pipe 9, a liquid outlet of the cleaning circulating pipe 11 is connected to the mixed slurry discharging pipe 9, control valves positioned at the upstream and downstream of the liquid outlet of the cleaning circulating pipe 11 are arranged on the mixed slurry discharging pipe 9, and control valves are also arranged on the cleaning circulating pipe 11. The pipeline and the valve structure can control whether the primary feed pump 2 feeds from the mixed slurry tank 1 for solid-liquid separation or conveys primary separation liquid from the primary separation liquid storage tank 4 through the cleaning circulation pipe 11 for circulation cleaning.
The primary separation liquid storage tank 4 outputs liquid in the primary separation liquid storage tank through a primary separation liquid discharge pipe 13, the primary separation liquid discharge pipe 13 is provided with two discharge branches, one discharge branch is connected with the cleaning circulating pipe 11, the other discharge branch is connected to the secondary feed pump 5, and control valves are arranged on the two discharge branches. In the cleaning state, the structure is matched with the cleaning circulating pipe 11 to control whether the liquid in the primary separation liquid storage tank 4 is conveyed to the primary fly ash water-washing centrifugal machine 3 for circulating cleaning or is conveyed to the secondary fly ash water-washing centrifugal machine 6 for cleaning.
The primary feed pump 2 is connected to the feed inlet of the primary fly ash water-washing centrifuge 3 through a primary separation feed pipe 10, the secondary feed pump 5 is connected to the feed inlet of the secondary fly ash water-washing centrifuge 6 through a secondary separation feed pipe 12, and control valves are arranged on the primary separation feed pipe 10 and the secondary separation feed pipe 12. By adopting the structure, on one hand, whether the corresponding fly ash water-washing centrifugal machine is fed or not can be controlled.
The solid outlets of the primary fly ash water-washing centrifugal machine 3 and the secondary fly ash water-washing centrifugal machine 6 are connected to the same solid material storage tank 7 and are used for storing the separated and output solid materials. The fly ash water-washing centrifugal machine is a horizontal spiral centrifugal machine, namely a primary fly ash water-washing centrifugal machine 3 and a secondary fly ash water-washing centrifugal machine 6 are respectively a primary horizontal spiral centrifugal machine and a secondary horizontal spiral centrifugal machine. The mixing slurry tank 1, the primary separation liquid storage tank 4, the solid material storage tank 7 and the secondary separation liquid storage tank 8 are all provided with stirring devices, so that slurry or materials are relatively uniformly mixed, particularly, the mixing slurry tank 1 and the primary separation liquid storage tank 4 can be prevented from being unevenly distributed, and the materials in the mixing slurry tank can be conveniently output through the stirring devices.
In the structure, after a part of mixed slurry is input into the primary fly ash washing centrifugal machine 3 for solid-liquid separation during washing, a part of primary separation liquid is stored in the primary separation liquid storage tank 4 to be used as washing liquid, and then the washing circulating pipe 11 is started to be communicated with the primary feed pump 2 to form a circulating loop for washing. The first-stage fly ash water-washing centrifuge 3 also continuously works in the cleaning process by using the stored first-stage separation liquid to carry out circulating cleaning, so that the fly ash water-washing centrifuge is continuously and circularly cleaned, solid materials in the cleaning liquid are continuously separated out and can be output as products in the cleaning process, and solid impurities contained in the cleaning liquid in the cleaning process are less and less due to continuous solid-liquid separation, so that the cleaning liquid can be better used for cleaning the fly ash water-washing centrifuge at the next stage. When the cleaning liquid in the primary separation liquid storage tank 4 reaches a certain clear degree to indicate that the cleaning is finished, the cleaning circulation pipe 11 can be cut off to clean the secondary fly ash water-washing centrifuge 6, and at the moment, the cleaning liquid in the primary separation liquid storage tank 4 is clear, so that the cleaning liquid does not need to be circularly cleaned for many times, is directly filled into the secondary fly ash water-washing centrifuge 6, the secondary fly ash water-washing centrifuge 6 is kept in an operating state, a better cleaning effect can be realized on the secondary fly ash water-washing centrifuge 6, the material part of the object after cleaning is separated and output, and the cleaning liquid enters the secondary separation liquid storage tank 8.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is capable of being modified or applied to other applications without modification, as long as various insubstantial modifications of the inventive concept and technical solutions are adopted, all within the scope of the utility model.
Claims (6)
1. Exempt from outer moisturizing flying dust washing centrifuge self-cleaning system, its characterized in that: including mixed slurry jar (1), one-level fly ash water washing centrifuge (3), second grade fly ash water washing centrifuge (6), one-level separation liquid storage tank (4) and second grade separation liquid storage tank (8), mixed slurry jar (1) are connected to through pipeline and one-level charge-in pump (2) one-level fly ash water washing centrifuge (3), the liquid outlet of one-level fly ash water washing centrifuge (3) is connected to one-level separation liquid storage tank (4), one-level separation liquid storage tank (4) are connected to through pipeline and second grade charge-in pump (5) second grade fly ash water washing centrifuge (6), the liquid outlet of second grade fly ash water washing centrifuge (6) is connected to second grade separation liquid storage tank (8), one-level separation liquid storage tank (4) still are connected to through washing circulating pipe (11) one-level charge-in pump (2) with the pipeline between the mixed slurry jar (1).
2. The self-cleaning system of an external water-replenishing-free fly ash water-washing centrifuge of claim 1, wherein: the mixed slurry tank (1) is connected to the primary feed pump (2) through a mixed slurry discharging pipe (9), a liquid outlet of the cleaning circulating pipe (11) is connected to the mixed slurry discharging pipe (9), control valves positioned at the upstream and downstream of the liquid outlet are arranged on the mixed slurry discharging pipe (9), and the cleaning circulating pipe (11) is also provided with a control valve.
3. The self-cleaning system of an external water-replenishing-free fly ash water-washing centrifuge of claim 2, wherein: the primary separation liquid storage tank (4) outputs liquid in the primary separation liquid storage tank through a primary separation liquid discharge pipe (13), the primary separation liquid discharge pipe (13) is provided with two discharge branches, one discharge branch is connected with the cleaning circulating pipe (11), the other discharge branch is connected to the secondary feed pump (5), and the two discharge branches are provided with control valves.
4. The self-cleaning system of an external water-replenishing-free fly ash water-washing centrifuge of claim 1, wherein: the primary feed pump (2) is connected to the feed inlet of the primary fly ash water-washing centrifugal machine (3) through a primary separation feed pipe (10), the secondary feed pump (5) is connected to the feed inlet of the secondary fly ash water-washing centrifugal machine (6) through a secondary separation feed pipe (12), and control valves are arranged on the primary separation feed pipe (10) and the secondary separation feed pipe (12).
5. The self-cleaning system of an external water-replenishing-free fly ash water-washing centrifuge of claim 1, wherein: the solid outlets of the primary fly ash water-washing centrifugal machine (3) and the secondary fly ash water-washing centrifugal machine (6) are connected to the same solid material storage tank (7).
6. The self-cleaning system of an external water-replenishing-free fly ash water-washing centrifuge of claim 1, wherein: the fly ash water-washing centrifuge is a horizontal spiral centrifuge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322254562.6U CN220738004U (en) | 2023-08-21 | 2023-08-21 | Self-cleaning system of fly ash washing centrifuge free of external water supplementing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322254562.6U CN220738004U (en) | 2023-08-21 | 2023-08-21 | Self-cleaning system of fly ash washing centrifuge free of external water supplementing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220738004U true CN220738004U (en) | 2024-04-09 |
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ID=90568000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322254562.6U Active CN220738004U (en) | 2023-08-21 | 2023-08-21 | Self-cleaning system of fly ash washing centrifuge free of external water supplementing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220738004U (en) |
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2023
- 2023-08-21 CN CN202322254562.6U patent/CN220738004U/en active Active
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