CN220461015U - Feeding pipe assembly, horizontal decanter centrifuge adopting same and fly ash washing system - Google Patents
Feeding pipe assembly, horizontal decanter centrifuge adopting same and fly ash washing system Download PDFInfo
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- CN220461015U CN220461015U CN202321409469.1U CN202321409469U CN220461015U CN 220461015 U CN220461015 U CN 220461015U CN 202321409469 U CN202321409469 U CN 202321409469U CN 220461015 U CN220461015 U CN 220461015U
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- feeding pipe
- pipe
- water
- water outlet
- fly ash
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- 239000010881 fly ash Substances 0.000 title claims abstract description 35
- 238000005406 washing Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 108
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 238000011010 flushing procedure Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 50
- 238000001914 filtration Methods 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 7
- 238000004062 sedimentation Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 239000002956 ash Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 239000011505 plaster Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 9
- 239000004568 cement Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011278 co-treatment Methods 0.000 description 1
- 238000006298 dechlorination reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000009270 solid waste treatment Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Centrifugal Separators (AREA)
Abstract
The utility model relates to the field of fly ash treatment systems, in particular to a feed pipe assembly, a horizontal decanter centrifuge adopting the feed pipe assembly and a fly ash washing system; the centrifugal machine comprises a feeding pipe body, wherein the feeding pipe body is inserted into the end part of a spiral inner cylinder of the centrifugal machine; the feeding pipe body is connected with a flushing mechanism; the flushing mechanism comprises a water outlet arranged on the feeding pipe body, and the water outlet is connected with a water supply part; the utility model discloses a feeding pipe assembly for a centrifuge, which can prevent stucco formed by fly ash from accumulating between a feeding pipe and a spiral inner cylinder by changing the structure of a feeding pipe of a traditional centrifuge, and further prevent the stucco between the feeding pipe and the spiral inner cylinder from damaging the feeding pipe after hardening; and finally, the influence of the fly ash plaster on the service life of the centrifuge is avoided.
Description
Technical Field
The utility model relates to the field of fly ash treatment systems, in particular to a feed pipe assembly for a centrifuge, a centrifuge adopting the feed pipe assembly and a fly ash washing system.
Background
The cement kiln has obvious advantages in solving the problem of disposal of the fly ash compared with other treatment processes due to the safety and reliability of the technology, a complete process route is formed, and industrial production is realized.
The basic process section of the cement kiln co-treatment fly ash technology capable of realizing large-scale industrial production is that the fly ash is subjected to water washing and dechlorination, the fly ash is conveyed into a factory by a special conveying vehicle, then is conveyed into a special fly ash bin in a closed mode, is mixed and washed with metered water by metering into a water washing pre-stirring tank, is subjected to three-stage countercurrent rinsing process, is subjected to solid-liquid separation, and is dried at low temperature to form finished product ash, and then is conveyed into a bin as a cement raw material to be conveyed into a cement kiln high-temperature section through a sealing conveying device for fusion treatment, and wastewater after solid-liquid separation is conveyed into a water treatment unit.
The horizontal decanter centrifuge is an important device in a solid-liquid separation stage, and in actual operation, a feeding pipe part of the horizontal decanter centrifuge is often broken, the failure occurrence period is 1-2 months, and huge potential safety hazards are caused.
Decanter centrifuges utilize a machine that separates components of a liquid from solid particles or a mixture of liquid and liquid using centrifugal force.
The centrifugal machine is mainly used for separating solid particles from liquid in suspension or separating two liquids which are different in density and are mutually insoluble in the emulsion; it can also be used to remove liquids from wet solids.
The rotary drum and the spiral are operated to rotate at a certain differential speed in the same direction and high speed, the material is continuously introduced into the inner cylinder of the material conveying spiral through the feeding pipe, enters the rotary drum after being accelerated, and heavy solid phase matters are deposited on the wall of the rotary drum to form a slag layer under the action of a centrifugal force field.
The solid phase matter deposited is continuously pushed to the cone end of the rotary drum by the material conveying screw and discharged out of the machine through the slag discharging port.
The lighter liquid phase forms an inner liquid ring, continuously overflows the rotary drum through the overflow port at the large end of the rotary drum, and is discharged out of the machine through the liquid discharge port.
The feed tube is a long cantilever member which is stationary during operation of the apparatus.
The screw matched with the feeding pipe is a high-speed rotating part, the actual running rotating speed is 1800rpm, and the matching clearance between the feeding pipe and the screw is only 10mm.
Once the gap is filled or the feed tube shakes, severe friction between the feed tube and the screw can cause the feed tube to break.
In practical production, it is found that the mortar containing water is extremely sticky and easily adhered to the inner wall of the tank or the pipeline, and the mortar has stronger adhesive force after drying and stronger firmness than cement.
In actual production, the blocked pipeline needs to be cleaned by using a percussion drill.
Due to this property of the fly ash, the fly ash is more likely to adhere to the gap between the feed pipe and the centrifuge screw, thereby causing the fly ash hard cake to rub against the feed material at a high speed, thereby causing the feed pipe to be cut off.
The cause of the breakage of the feed pipe can be found by analysis, and the problem is not easy to solve.
The reason is that:
the spiral middle channel of the traditional centrifugal machine is formed at one time, secondary processing cannot be performed, and gaps between the feeding pipe and the spiral cannot be increased.
If the service life of the feeding pipe can be realized by increasing the clearance between the feeding pipe and the spiral through reducing the diameter of the feeding pipe, the method has been tested in practical production but the use effect is not ideal.
Therefore, in order to solve the above problems, the conventional feed pipe structure needs to be optimally designed.
Disclosure of Invention
The utility model aims to provide a feed pipe assembly for a centrifuge, which has longer service life.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the feeding pipe assembly for the centrifugal machine comprises a feeding pipe body, wherein the feeding pipe body is inserted into the end part of a spiral inner cylinder of the centrifugal machine; the feeding pipe body is connected with a flushing mechanism; the flushing mechanism comprises a water outlet arranged on the feeding pipe body, and the water outlet is connected with a water supply component.
The water supply part comprises a water supply pump which is communicated with the water outlet.
The feeding pipe body comprises an inner pipe and an outer pipe, and the outer pipe is sleeved on the outer side of the inner pipe; the water outlet is arranged on the outer pipe, and the inner diameter of the outer pipe is larger than the outer diameter of the inner pipe; the inner side of the outer tube is hollow to form a water outlet cavity.
The water supply pump is connected with a liquid outlet of the fly ash washing centrifugal machine.
The water outlet is a waist-shaped hole.
The vertical section of the water outlet is isosceles trapezoid; the larger side of the water outlet opening is arranged close to the inner pipe.
The water supply pump is connected with the centrifugal machine through a liquid supply pipeline, and the liquid supply pipeline is connected with a first control valve.
The liquid supply pipeline is also connected with an auxiliary component, the auxiliary component comprises a liquid supply box, the liquid supply box is connected with the liquid supply pipeline through an auxiliary pipeline, and a second control valve is arranged on the auxiliary pipeline.
The horizontal decanter centrifuge comprises a rotary drum and a spiral inner cylinder arranged in the rotary drum, wherein the end part of the spiral inner cylinder is inserted with the feeding pipe assembly.
A fly ash washing system comprises a washing unit and a water treatment unit;
the washing unit can wash raw ash, and send the solid matters after washing into the kiln unit and the liquid matters into the water treatment unit;
the water treatment unit can treat liquid substances;
the washing unit comprises a tank washing mechanism which is connected with a solid-liquid separation device; the solid-liquid separation device comprises the horizontal decanter centrifuge;
the water treatment unit comprises a buffer sedimentation mechanism; the buffering sedimentation mechanism is connected with a sand filtering mechanism, and the sand filtering mechanism is connected with a fine filtering mechanism through a filter press.
The utility model has the advantages that:
the utility model discloses a feeding pipe assembly for a centrifuge, which can prevent stucco formed by fly ash from accumulating between a feeding pipe and a spiral inner cylinder by changing the structure of a feeding pipe of a traditional centrifuge, and further prevent the stucco between the feeding pipe and the spiral inner cylinder from damaging the feeding pipe after hardening; and finally, the influence of the fly ash plaster on the service life of the centrifuge is avoided.
Drawings
The contents of the drawings and the marks in the drawings of the present specification are briefly described as follows:
fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic view of the structure of the present utility model when connected to a decanter centrifuge.
FIG. 3 is a schematic structural view of the utility model when connected with the horizontal spiral inner cylinder.
FIG. 4 is a block diagram of the overall structure of the fly ash washing system of the present utility model.
The labels in the above figures are:
1. the device comprises a feeding pipe body, a horizontal decanter centrifuge, a fly ash washing system, a buffer sedimentation mechanism, a sand filtering mechanism, a fine filtering mechanism, a filter press and a filter press.
Detailed Description
The following detailed description of the utility model refers to the accompanying drawings, which illustrate preferred embodiments of the utility model in further detail.
The feeding pipe assembly for the centrifugal machine comprises a feeding pipe body 1, wherein the feeding pipe body 1 is inserted into the end part of a spiral inner cylinder 21 of the centrifugal machine; the feeding pipe body 1 is connected with a flushing mechanism; the flushing mechanism comprises a water outlet 14 arranged on the feeding pipe body 1, and the water outlet 14 is connected with a water supply component; the utility model discloses a feeding pipe assembly for a centrifuge, which can prevent stucco formed by fly ash from accumulating between the feeding pipe and a spiral inner cylinder 21 by changing the structure of a feeding pipe of a traditional centrifuge, and further prevent the stucco from being hardened and damaging the feeding pipe; and finally, the influence of the fly ash plaster on the service life of the centrifuge is avoided.
The utility model discloses a feeding pipe assembly which is of a feeding pipe structure for a centrifugal machine, and is spliced at the end part of a spiral inner cylinder 21 of the centrifugal machine; the method is mainly used for feeding corresponding solutions.
Specifically, the feeding pipe assembly disclosed by the utility model comprises a feeding pipe body 1, wherein the feeding pipe body 1 is of a pipeline structure and is of a cylindrical structure as a whole, and in addition, the feeding pipe body 1 is inserted into the end part of a spiral inner cylinder 21 of a centrifugal machine; the feeding pipe body 1 is connected with a flushing mechanism; the flushing mechanism is used for providing water liquid, so that the water liquid flushes the area between the feeding pipe body 1 and the spiral inner cylinder 21, the accumulation of fly ash at the area is avoided, and then the accumulation of stucco outside the feeding pipe body 1 and the area between the feeding pipe body 1 and the spiral inner cylinder 21 is avoided, so that the damage of the subsequently hardened stucco to the feeding pipe body 1 is avoided; in addition, the flushing mechanism comprises a water outlet 14 arranged on the feeding pipe body 1, and the water outlet 14 is connected with a water supply component; the water outlet 14 is arranged, so that water is conveniently discharged, and meanwhile, the water outlet 14 faces to the overlapping area of the feed pipe body 1 and the threaded inner cylinder, so that water can be better prevented from being accumulated in the overlapping area of the feed pipe body 1 and the threaded inner cylinder; in addition, the water outlet 14 is connected with a water supply part, and the water supply part supplies water for the water outlet 14 to realize the flushing operation of the water solution on the sludge; in addition, in the present utility model, the water outlet 14 may be directly connected to the water supply part through a pipe, or may be connected to the water outlet cavity 13, which will be described later, so that the external pipe may be reduced.
Further, in the present utility model, the water supply means includes a water supply pump 18, and the water supply pump 18 is in communication with the water outlet 14; the water supply pump 18 is used for pumping water, and the overlapping area of the feed pipe body 1 and the threaded inner barrel is conveniently washed through the water outlet 14.
Further, in the utility model, the feeding pipe body 1 comprises an inner pipe 11 and an outer pipe 12, and the outer pipe 12 is sleeved outside the inner pipe 11; the water outlet 14 is arranged on the outer tube 12, and the inner diameter of the outer tube 12 is larger than the outer diameter of the inner tube 11; the inner side of the outer tube 12 is hollow to form a water outlet cavity 13; according to the utility model, through the arrangement of the inner pipe 11 and the outer pipe 12, the feeding pipe body 1 forms a double-layer structure, so that water can conveniently pass through the feeding pipe body 1 and then pass through the water outlet 14, and the water can be discharged and washed.
Further, in the present utility model, the water supply pump 18 is connected to a liquid outlet of the fly ash washing centrifuge; through the arrangement, the supply of external water can be reduced during the subsequent flushing operation, the flushing of the plaster can be realized by the supernatant fluid of the centrifugal machine, and the use of water resources is greatly reduced; not only the cost input can be reduced, but also the input amount of components can be reduced.
Further, in the present utility model, the water outlet 14 is a waist-shaped hole; the waist-shaped hole is provided with a larger liquid outlet, so that the flushing liquid is conveniently discharged, and the flushing of the plaster between the spiral inner cylinder 21 and the feeding pipe body 1 is realized to a greater degree.
Further, in the present utility model, the vertical section of the water outlet 14 is isosceles trapezoid; the larger side of the opening of the water outlet 14 is arranged close to the inner pipe 11; by the design, the internal size of the water outlet 14 is large, the external size of the water outlet 14 is small, and based on the design, the water outlet 14 can be conveniently and rapidly discharged, so that better flushing operation on the plaster is realized.
Further, in the present utility model, the water supply pump 18 is connected to the centrifuge through a liquid supply pipe 15, and the liquid supply pipe 15 is connected to a first control valve; the utility model is convenient for the connection between the water supply pump 18 and the centrifuge by the arrangement of the liquid supply pipeline 15, in addition, the liquid supply pipeline 15 is provided with the first control valve 151, and the first control valve 151 can control the on-off of the liquid supply pipeline 15, thereby realizing the pumping of the supernatant liquid in the centrifuge by the water supply pump 18.
Further, in the present utility model, the liquid supply pipe 15 is further connected to an auxiliary component, the auxiliary component includes a liquid supply tank 17, the liquid supply tank 17 is connected to the liquid supply pipe 15 through an auxiliary pipe 16, and a second control valve 161 is disposed on the auxiliary pipe 16; the arrangement of the auxiliary component can better supply liquid to the feeding pipe fitting, and ensure sufficient water to flush the plaster.
The horizontal decanter centrifuge 2 comprises a rotary drum and a spiral inner cylinder 21 arranged in the rotary drum, wherein the end part of the spiral inner cylinder 21 is inserted with the feeding pipe assembly; the utility model can avoid the influence on the service life of the feeding pipe assembly due to the accumulation of the plaster at the joint of the spiral inner cylinder 21 and the feeding pipe assembly by optimizing the structure of the feeding pipe assembly.
A fly ash washing system 3, which comprises a washing unit and a water treatment unit; the washing unit can wash raw ash, and send the solid matters after washing into the kiln unit and the liquid matters into the water treatment unit; the water treatment unit can treat liquid substances; the washing unit comprises a tank washing mechanism 3-1, and the tank washing mechanism 3-1 is connected with a solid-liquid separation device 3-2; the solid-liquid separation device 3-2 comprises the horizontal decanter centrifuge 2; the water treatment unit comprises a buffer sedimentation mechanism 4; the buffer sedimentation mechanism 4 is connected with a sand filtering mechanism 5, and the sand filtering mechanism 5 is connected with a fine filtering mechanism 6 through a filter press 7; the fly ash water washing system 3 can realize the treatment of the fly ash, and residues of the fly ash water washing system can be directly used for cement production, so that the demand on natural resources is reduced, the damage to the environment and the resources is reduced, the pollution and the damage of wastes to the social environment are reduced, and the cost of solid waste treatment is greatly reduced.
Specifically:
specific examples:
the utility model changes the traditional feeding pipe assembly, mainly comprises a redesigned feeding pipe structure, the feeding pipe assembly disclosed by the utility model comprises a feeding pipe body 1, wherein the feeding pipe body 1 is inserted into the end part of a spiral inner cylinder 21 of a centrifugal machine; the feeding pipe body 1 is connected with a flushing mechanism; the flushing mechanism comprises a water outlet 14 arranged on the feeding pipe body 1, and the water outlet 14 is connected with a water supply component; the feeding pipe body 1 comprises an inner pipe 11 and an outer pipe 12, and the outer pipe 12 is sleeved on the outer side of the inner pipe 11; the water outlet 14 is arranged on the outer tube 12, and the inner diameter of the outer tube 12 is larger than the outer diameter of the inner tube 11; the inner side of the outer tube 12 is hollow to form a water outlet cavity 13; in other words, the feeding pipe body 1 disclosed by the utility model is made into a double feeding pipe, one layer of material is moved away from the inside, and the second layer of flushing water is moved away from the inside; at the same time, a waist-shaped water outlet 14 is processed at the tail end of the appearance, and the position of the water outlet 14 is opposite to the position of a baffle plate for depositing fly ash.
The cleaning water is continuously injected in the production, the feeding cavity of the spiral is continuously flushed, the fly ash material is prevented from being deposited on the baffle plate of the spiral, and the gap between the feeding pipe and the spiral is prevented from being reduced.
In addition, because the fly ash washing process is a zero-emission process design, when the feeding assembly is used, continuous washing water is needed, and when the feeding assembly is actually used, the washing water quantity is relatively large, so that the problem that the added washing water quantity does not break the original water balance is particularly important. Through researches, the supernatant after separation by a centrifugal machine has the characteristic of low solid content and is very suitable for flushing the parts; the present utility model therefore employs an internal circulation to flush the spiral inner barrel 21, thus avoiding the addition of extraneous water make-up to the system.
In summary, the structure of the feed pipe after analysis has been determined that a pump with a flow of 4m/h and a lift of 45 m is configured to supply water according to the flushing work to be realized, and meanwhile, a control valve, a monitoring flowmeter and a pressure gauge are added on a pipeline to realize the controllability of the flushing process and ensure the most stable operation with the lowest energy consumption.
By carrying out improved test on one device, the breaking failure period of the feeding pipe is prolonged from original 2 months to more than 5 months, and the service life is prolonged by 1.5 times; has great popularization and application significance.
It is obvious that the specific implementation of the present utility model is not limited by the above-mentioned modes, and that it is within the scope of protection of the present utility model only to adopt various insubstantial modifications made by the method conception and technical scheme of the present utility model.
Claims (10)
1. The feeding pipe assembly is characterized by comprising a feeding pipe body, wherein the feeding pipe body is inserted into the end part of the spiral inner cylinder of the centrifugal machine; the feeding pipe body is connected with a flushing mechanism; the flushing mechanism comprises a water outlet arranged on the feeding pipe body, and the water outlet is connected with a water supply component.
2. The feed tube assembly of claim 1, wherein the water supply means comprises a water supply pump in communication with the water outlet.
3. A feed pipe assembly according to any one of claims 1-2, wherein the feed pipe body comprises an inner pipe and an outer pipe, the outer pipe being sleeved outside the inner pipe; the water outlet is arranged on the outer pipe, and the inner diameter of the outer pipe is larger than the outer diameter of the inner pipe; the inner side of the outer tube is hollow to form a water outlet cavity.
4. A feed pipe assembly as defined in claim 2, wherein the feed water pump is connected to a discharge port of a fly ash water centrifuge.
5. The feed tube assembly of claim 1, wherein the water outlet is a kidney-shaped aperture.
6. The feed tube assembly of claim 5, wherein the water outlet has a vertical cross-section of an isosceles trapezoid; the larger side of the water outlet opening is arranged close to the inner pipe.
7. A feed tube assembly as set forth in claim 2 wherein the feed pump is connected to the centrifuge by a feed tube, the feed tube being connected to a first control valve.
8. The feed pipe assembly of claim 7, wherein the liquid supply pipe is further connected with an auxiliary component, the auxiliary component comprises a liquid supply tank, the liquid supply tank is connected with the liquid supply pipe through an auxiliary pipe, and the auxiliary pipe is provided with a second control valve.
9. A decanter centrifuge comprising a bowl and a spiral inner cylinder disposed within the bowl, the end of the spiral inner cylinder having a feed tube assembly according to any one of claims 1-8 inserted therein.
10. The fly ash washing system is characterized by comprising a washing unit and a water treatment unit;
the washing unit can wash raw ash, and send the solid matters after washing into the kiln unit and the liquid matters into the water treatment unit;
the water treatment unit can treat liquid substances;
the washing unit comprises a tank washing mechanism which is connected with a solid-liquid separation device; the solid-liquid separation device comprises the decanter centrifuge of claim 9;
the water treatment unit comprises a buffer sedimentation mechanism; the buffering sedimentation mechanism is connected with a sand filtering mechanism, and the sand filtering mechanism is connected with a fine filtering mechanism through a filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321409469.1U CN220461015U (en) | 2023-06-05 | 2023-06-05 | Feeding pipe assembly, horizontal decanter centrifuge adopting same and fly ash washing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321409469.1U CN220461015U (en) | 2023-06-05 | 2023-06-05 | Feeding pipe assembly, horizontal decanter centrifuge adopting same and fly ash washing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220461015U true CN220461015U (en) | 2024-02-09 |
Family
ID=89779892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321409469.1U Active CN220461015U (en) | 2023-06-05 | 2023-06-05 | Feeding pipe assembly, horizontal decanter centrifuge adopting same and fly ash washing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220461015U (en) |
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2023
- 2023-06-05 CN CN202321409469.1U patent/CN220461015U/en active Active
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