CN115259593B - Active and passive enhanced homogenizing mixing system for treating sludge by pipeline flow solidification - Google Patents
Active and passive enhanced homogenizing mixing system for treating sludge by pipeline flow solidification Download PDFInfo
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- CN115259593B CN115259593B CN202211014913.XA CN202211014913A CN115259593B CN 115259593 B CN115259593 B CN 115259593B CN 202211014913 A CN202211014913 A CN 202211014913A CN 115259593 B CN115259593 B CN 115259593B
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- active
- passive
- homogenization
- enhanced
- conveying pipe
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- 239000010802 sludge Substances 0.000 title claims abstract description 24
- 238000002156 mixing Methods 0.000 title claims abstract description 22
- 238000007711 solidification Methods 0.000 title claims abstract description 7
- 230000008023 solidification Effects 0.000 title claims abstract description 7
- 238000000265 homogenisation Methods 0.000 claims abstract description 37
- 239000000654 additive Substances 0.000 claims abstract description 11
- 230000000996 additive effect Effects 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 8
- 238000003860 storage Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002002 slurry Substances 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011066 ex-situ storage Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
Abstract
The invention discloses an active and passive enhanced homogenization mixing system for treating sludge by pipeline flow solidification, which comprises a conveying pipe, and an active homogenization device and a passive homogenization device which are arranged in the conveying pipe; the active homogenizing device comprises a power output assembly and a stirring assembly connected with the power output assembly; the passive homogenization device is fixed on the inner wall of the conveying pipe. The mechanical strong turbulence and the passive turbulence devices are arranged in the conveying pipeline, the turbulence effect of slurry flow is further enhanced, and the mixing between the slurry and the additive is more intense and uniform. The silt and the additive are mixed while flowing in the pipeline, a storage yard design is not needed, and the method has good conveying homogenization adjustment effect in the process of directly conveying high-concentration or low-concentration mud, so that the cost is saved; and the conveying distance required by uniform mixing is greatly shortened by combining an active homogenization system and a passive homogenization system, so that the route design of a pipeline in practical application is more flexible and energy is saved.
Description
Technical Field
The invention relates to the technical field of environmental and ecological management, in particular to an active and passive enhanced homogenization mixing system for treating sludge by pipeline flow solidification.
Background
A large amount of sludge is generated in dredging projects of rivers, lakes, seas, reservoirs and the like, and the sludge has the characteristics of fine particles, large porosity and high liquid limit, so that the engineering properties are extremely poor, the sludge cannot be directly utilized by the projects, and heavy metal pollutants, organic pollutants and the like are contained in some sludge. The traditional treatment mode mainly comprises curing treatment, namely, adding curing agents (such as cement, gypsum and the like) into sludge meeting certain conditions (usually water content), so as to quickly improve the engineering mechanical strength and achieve the required bearing performance in a certain time.
At present, the curing treatment mode mainly comprises the steps of pre-dewatering treatment of a storage yard, and then carrying out ex-situ curing or in-situ curing of the storage yard, wherein the treatment mode often needs to occupy the storage yard for a long time, consumes a great amount of time and space cost, and has poor economical efficiency. The method has the advantages that the sludge is treated by adopting the pipeline flow curing technology of the sludge, a certain proportion of curing agent is sprayed into the sludge conveying pipeline, the sludge and the curing agent are fully mixed within a certain distance by changing factors such as the shape of the pipeline, and then the sludge is directly poured in a designated area, so that a storage yard is hardly used, the space and time cost is greatly reduced, and the method has extremely high economic value. However, there is a lack of a delivery system with good mixing homogenization, and therefore, how to provide a mixing system with good homogenization is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides an active and passive enhanced homogenizing and mixing system for pipeline flow curing treatment, wherein an active and passive homogenizing and mixing device is arranged in a flow treatment device, so that the homogenizing effect in the flow process is improved.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an active and passive enhanced homogenization mixing system for a pipeline flow curing treatment sludge, comprising: a conveying pipe, an active enhanced homogenizing device and a passive enhanced homogenizing device which are arranged in the conveying pipe;
the active enhanced homogenization device comprises a power output assembly and a stirring assembly connected with the power output assembly;
the passive enhanced homogenizing device is fixed on the inner wall of the conveying pipe.
Preferably, the passive enhanced homogenization device is applied to the condition that the water content of the sludge is large, and particularly has a liquid limit of more than 3.0 times; the active enhanced homogenization device is suitable for the condition of 1.5-4.0 times of liquid limit.
Preferably, the power output assembly comprises a rotating shaft connected with an output shaft of the motor, the stirring assembly is a blade, and the blade is connected with the rotating shaft.
Furthermore, the rotating shaft is a hollow shaft, and an additive injection port is arranged on the surface of the rotating shaft.
Further, the paddle is rotatably connected with the rotating shaft.
Further, the rotating shaft comprises a main shaft and a connecting assembly fixed on the main shaft, and the connecting assembly is rotationally connected with the blade.
Still further, the connecting component is a connecting rod or a connecting ring;
the connecting rod is in cross connection with the main shaft, and the end part of the connecting rod is rotationally connected with the blade;
the center of the connecting ring is connected with the main shaft, and the paddles are uniformly distributed and rotationally connected to the connecting ring.
Preferably, the blade plane is parallel to the duct section or at an angle, which may be chosen within 0-180 °.
Preferably, the passive homogenization device is a spoiler or a spoiler column.
Further, the included angle between the spoiler and the pipe wall of the conveying pipe is 30-45 degrees, the length of the spoiler is 2/3 times of the inner diameter of the pipeline, and the distance between adjacent spoilers is 4 times of the inner diameter of the conveying pipe.
Further, the diameter of the turbulent flow column is 1/4 times of the inner diameter of the conveying pipe, and the distance between the adjacent turbulent flow columns is 1/2-1 times of the inner diameter of the conveying pipe.
Compared with the prior art, the invention discloses an active and passive enhanced homogenizing mixing system for treating sludge by pipeline flow solidification, which has the following beneficial effects:
according to the invention, the mechanical strong turbulence and the passive turbulence devices are arranged in the conveying pipeline, so that the turbulence effect of slurry flow is further enhanced, and the slurry and the additive are mixed more vigorously and uniformly. Through the combination of the active type homogenization system and the passive type homogenization system, the length of a turbulent flow area is greatly shortened (the conveying distance required by uniform mixing can be shortened to be less than 100m by arranging four turbulent flow plates, the conveying distance required by uniform mixing can be shortened to be less than 100m by arranging 9 turbulent flow columns), the conveying distance required by uniform mixing can be shortened to be 20-100m by the active type homogenization system, the conveying distance required by uniform mixing is further shortened, and sludge and an additive are mixed while flowing in a pipeline, so that a storage yard design is not needed, a good homogenization adjustment effect is realized in the direct conveying process of high-concentration or low-concentration slurry, and the cost is saved; and the conveying distance required by uniform mixing is greatly shortened by combining an active homogenization system and a passive homogenization system, so that the route design of a pipeline in practical application is more flexible and energy is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of an active homogenization apparatus of the present invention;
FIG. 2 is a diagram showing a specific construction of an active homogenization apparatus according to the present invention;
FIG. 3 is a diagram showing a specific construction of an active homogenization apparatus according to the present invention;
FIG. 4 is a diagram showing a specific construction of an active homogenization apparatus according to the present invention;
FIG. 5 is a diagram showing the relative positions of the active homogenizing apparatus and the delivery pipe according to the present invention;
FIG. 6 is a view of a spoiler of the present invention;
FIG. 7 is a schematic view of a spoiler column according to the present invention;
FIG. 8 is a block diagram of an active homogenizing apparatus with additive injection ports according to the present invention;
FIG. 9 is a specific construction diagram of an active homogenizing apparatus with an additive injection port according to the present invention
FIG. 10 is a specific construction view of an active homogenizing apparatus with an additive injection port according to the present invention
FIG. 11 is a specific construction view of an active homogenizing apparatus with an additive injection port according to the present invention;
FIG. 12 is a schematic diagram of the homogenization of a spoiler of the present invention;
FIG. 13 is a schematic diagram of homogenization of a spoiler column of the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the pipe flow solidification sludge active and passive enhanced homogenization mixing system comprises: a conveying pipe 1, and an active reinforcing homogenization device and a passive reinforcing homogenization device which are arranged in the conveying pipe 1;
the active enhanced homogenization device comprises a power output assembly and a stirring assembly connected with the power output assembly;
the passive enhanced homogenizing device is fixed on the inner wall of the conveying pipe;
the power output assembly comprises a rotating shaft 3 connected with an output shaft of the motor, the stirring assembly is a blade 4, and the blade 4 is connected with the rotating shaft 3;
in some embodiments, the blade 4 is fixedly connected with the rotating shaft 3;
in other embodiments, the blade 4 is rotatably connected to the shaft 3 by a bearing.
As shown in fig. 2-4, the rotating shaft comprises a main shaft 31 and a connecting component fixed on the main shaft 31, the connecting component is rotatably connected with the blades 4, the number of the blades 4 and the diameters of the blades have a certain relation with the water content of the sludge, and the selection is made with reference to the following table.
Reference table for number, spacing and size of paddles in active enhanced homogenizing device (D is the inner diameter of conveying pipe)
Specifically, the connecting component is a connecting rod 51 or a connecting ring 52, the connecting rod 51 is in cross connection with the main shaft 31, and the end part of the connecting rod 51 is rotationally connected with the blade 4; the center of the connecting ring 52 is connected with the main shaft 31, and the blades 4 are uniformly distributed and rotationally connected to the connecting ring 52.
As shown in fig. 5, the plane of the blade 4 is parallel to the cross section of the conveying pipe 1 or forms an angle, which can be selected within 0-180 °.
As shown in fig. 6-7, in some embodiments, the passive homogenization device is a spoiler 61 or a spoiler column 62; the included angle between the spoiler 61 and the pipe wall of the conveying pipe 1 is 30-45 degrees, the length of the spoiler 61 is 2/3 times of the inner diameter of the pipe, and the distance between every two adjacent spoilers 61 is 4 times of the inner diameter of the conveying pipe 1. The diameter of the turbulent flow column 62 is 1/4 times of the inner diameter of the conveying pipe 1, and the distance between the adjacent turbulent flow columns 62 is 1/2-1 times of the inner diameter of the conveying pipe 1.
In some embodiments, as shown in fig. 8-11, the rotating shaft 3 is a hollow shaft and is communicated with a connecting component, the connecting component is also a hollow rod, and the surfaces of the rotating shaft 3 and the connecting component are provided with additive injection ports 7.
The principle of homogenization of the spoiler 61 and the spoiler column 62 is shown in fig. 12-13.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The active and passive enhanced homogenizing mixing system for treating sludge by pipeline flow solidification is characterized by comprising: a conveying pipe, an active enhanced homogenizing device and a passive enhanced homogenizing device which are arranged in the conveying pipe;
the active enhanced homogenization device comprises a power output assembly and a stirring assembly connected with the power output assembly;
the passive enhanced homogenizing device is fixed on the inner wall of the conveying pipe;
the power output assembly comprises a rotating shaft connected with an output shaft of the motor, the stirring assembly is a blade, and the blade is connected with the rotating shaft; the blade is rotationally connected with the rotating shaft; the rotating shaft comprises a main shaft and a connecting assembly fixed on the main shaft, and the connecting assembly is rotationally connected with the blade; the connecting component is a connecting rod or a connecting ring; the connecting rod is in cross connection with the main shaft, and the end part of the connecting rod is rotationally connected with the blade; the center of the connecting ring is connected with the main shaft, and the paddles are uniformly distributed and rotationally connected to the connecting ring.
2. The pipe flow-cured sludge active and passive enhanced homogenizing mixing system of claim 1, wherein the rotating shaft is a hollow shaft, and the surface of the rotating shaft is provided with an additive injection port.
3. The pipe flow-cured sludge active and passive enhanced homogenization mixing system of any of claims 1-2, wherein the paddle plane is parallel or at an angle to the duct section.
4. The pipe flow-cured sludge active and passive enhanced homogenization mixing system of claim 1, wherein the passive enhanced homogenization device is a spoiler or a spoiler column.
5. The system of claim 4, wherein the included angle between the spoiler and the pipe wall of the conveying pipe is 30-45 degrees, the length of the spoiler is 2/3 times of the inner diameter of the pipeline, and the distance between adjacent spoilers is 4 times of the inner diameter of the conveying pipe.
6. The system of claim 4, wherein the diameter of the turbulent flow column is 1/4 times the inner diameter of the conveying pipe and the distance between adjacent turbulent flow columns is 1/2-1 times the inner diameter of the conveying pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211014913.XA CN115259593B (en) | 2022-08-23 | 2022-08-23 | Active and passive enhanced homogenizing mixing system for treating sludge by pipeline flow solidification |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211014913.XA CN115259593B (en) | 2022-08-23 | 2022-08-23 | Active and passive enhanced homogenizing mixing system for treating sludge by pipeline flow solidification |
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| Publication Number | Publication Date |
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| CN115259593A CN115259593A (en) | 2022-11-01 |
| CN115259593B true CN115259593B (en) | 2023-12-01 |
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| CN202211014913.XA Active CN115259593B (en) | 2022-08-23 | 2022-08-23 | Active and passive enhanced homogenizing mixing system for treating sludge by pipeline flow solidification |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824820A (en) * | 2010-04-20 | 2010-09-08 | 武汉华荣科技发展有限责任公司 | Construction process for reclamation by hydraulic filling of silt and device thereof |
| CN103850245A (en) * | 2014-03-06 | 2014-06-11 | 浙江海洋学院 | Curing experiment device in dredging mud pipe and mixed curing method in dredging mud pipe |
| CN107867745A (en) * | 2017-11-24 | 2018-04-03 | 哈尔滨工业大学 | A kind of RJM integrated techniques water treatment facilities |
| CN207520884U (en) * | 2017-11-24 | 2018-06-22 | 哈尔滨工业大学 | A kind of strong flow-disturbing pipe-line mixer |
| CN208717128U (en) * | 2018-08-16 | 2019-04-09 | 中交水利水电建设有限公司 | A kind of water environment treatment sludge solidification processing equipment |
| CN212051029U (en) * | 2020-03-12 | 2020-12-01 | 郑州紫盈节能环保科技有限公司 | Pipeline mixer for sludge treatment |
| CN112745008A (en) * | 2020-11-16 | 2021-05-04 | 江阴市华士水利建设工程有限公司 | River channel sludge dewatering treatment system and sludge treatment method |
| CN113955918A (en) * | 2021-10-12 | 2022-01-21 | 中国水利水电第七工程局有限公司 | Chemical flocculation-vacuum preloading-solidification integrated sludge treatment device and method |
-
2022
- 2022-08-23 CN CN202211014913.XA patent/CN115259593B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824820A (en) * | 2010-04-20 | 2010-09-08 | 武汉华荣科技发展有限责任公司 | Construction process for reclamation by hydraulic filling of silt and device thereof |
| CN103850245A (en) * | 2014-03-06 | 2014-06-11 | 浙江海洋学院 | Curing experiment device in dredging mud pipe and mixed curing method in dredging mud pipe |
| CN107867745A (en) * | 2017-11-24 | 2018-04-03 | 哈尔滨工业大学 | A kind of RJM integrated techniques water treatment facilities |
| CN207520884U (en) * | 2017-11-24 | 2018-06-22 | 哈尔滨工业大学 | A kind of strong flow-disturbing pipe-line mixer |
| CN208717128U (en) * | 2018-08-16 | 2019-04-09 | 中交水利水电建设有限公司 | A kind of water environment treatment sludge solidification processing equipment |
| CN212051029U (en) * | 2020-03-12 | 2020-12-01 | 郑州紫盈节能环保科技有限公司 | Pipeline mixer for sludge treatment |
| CN112745008A (en) * | 2020-11-16 | 2021-05-04 | 江阴市华士水利建设工程有限公司 | River channel sludge dewatering treatment system and sludge treatment method |
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| CN115259593A (en) | 2022-11-01 |
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