River and lake dredging slurry preparation device for test
Through the design of the split silt body and shaft drive blade with holes, the problem of difficult decomposition of mud in the river and lake floor is solved, and efficient crushing and mixing of silt is achieved, which simplifies the operation process and reduces costs.
Patent Information
- Application Number
- CN202421942445.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The prior art is difficult to effectively decompose the sludge grouped into sludge in river and lake bottoms, resulting in difficult and high cost.
The silt body structure divided by hole partition is adopted. The rotating shaft drives the crushing mud blades and stirring blades to rotate, and decompose the silt into two processes: crushing and mixing, combining the scraping mud blades and crushing mud pieces to ensure that the silt falls into the slurry silt silt through the hole partition and mixes with water.
It realizes efficient crushing and mixing of sludge, simplifies the operation process, reduces preparation costs, and improves the slurry preparation effect.
Smart Images
Figure CN223127877U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sludge treatment, in particular to a device for preparing river and lake dredging slurry for experiments. Background Technique
[0002] In recent years, the country has paid more and more attention to the ecological environment, especially the ecological environment governance in river and lake areas. Generally, it is necessary to dredge the river and lake bottom mud and then fill it into the designated mud area. The river and lake bottom mud generally has a high water content, fine soil particles, and low soil strength. Generally, it needs to be treated before it can be applied in actual projects. Before the engineering application, corresponding indoor model tests are generally required to test and verify the engineering technical feasibility. During the model test verification process, a large amount of slurry needs to be prepared. The raw material river and lake bottom mud in the slurry preparation is difficult to decompose into slurry because of its fine particles and high viscosity, which is easy to form clusters. Therefore, it has important practical engineering significance to invent a device for preparing river and lake dredging slurry for experiments to solve the problem that the river and lake bottom mud is not suitable for forming slurry due to clustering. Summary of the Invention
[0003] In view of this, the utility model aims to overcome the defects existing in the above-mentioned prior art, and provides a device for preparing river and lake dredging slurry for experiments, which is suitable for preparing slurry from river and lake bottom mud with fine particles, high clay content and not easy to disperse, or silt clay produced by marine dredging.
[0004] To achieve the above object, the technical solution of the utility model is realized as follows:
[0005] A device for preparing river and lake dredging slurry for experiments includes a bin body. An opening for putting in silt and water is provided at the top of the bin body, and the internal cavity is divided into a crushed mud bin in the upper part and a slurry preparation bin in the lower part by a perforated partition plate; a rotating shaft is arranged at the axial part of the bin body, and the rotating shaft extends from the crushed mud bin through the perforated partition plate to the bottom of the slurry preparation bin; a plurality of crushed mud blades are arranged on the part of the rotating shaft located in the crushed mud bin; a plurality of stirring blades are arranged on the part of the rotating shaft located in the slurry preparation bin; both the crushed mud blades and the stirring blades can be driven by the rotating shaft to rotate.
[0006] Further, the device for preparing river and lake dredging slurry for experiments further includes scraping blades. One end of the scraping blades is fixed to the rotating shaft, and the other end is provided with a vertical scraping member, and the scraping member is close to the side wall of the bin body and the perforated partition plate.
[0007] Further, a plurality of crushed mud members are arranged on the scraping blades, and the crushed mud members are arranged at an angle below the scraping blades.
[0008] Further, the crushed mud members are uniformly distributed along the axial direction and the circumferential direction of the scraping blades.
[0009] Further, the movement track of the mud crushing member covers all the first through holes distributed on the perforated partition plate.
[0010] Further, the stirring blades are vertically arranged blades.
[0011] Further, the stirring blades are provided with second through holes.
[0012] Further, the mud crushing blades are flat blades or arc-shaped blades; the stirring blades are flat blades or arc-shaped blades.
[0013] Further, a slurry discharge valve for discharging the slurry is arranged on the bottom side wall of the bin body.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] (1) The test device for preparing river and lake dredging slurry provided by the present utility model decomposes the process of preparing slurry from the indissoluble agglomerated silt into two processes of crushing and mixing. After being crushed in the mud crushing bin, the silt falls into the slurry preparation bin through the perforated partition plate and is stirred and mixed with water, and the slurry preparation effect is better. Moreover, there will be slight vibrations during the rotation of the rotating shaft, which can accelerate the crushed silt to pass through the perforated partition plate.
[0016] (2) The test device for preparing river and lake dredging slurry provided by the present utility model only needs to sequentially add water and silt into the mud crushing bin during the slurry preparation process. The equipment is simple to operate, and the device has a simple structure and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The attached drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the attached drawings:
[0018] Figure 1 is a schematic diagram of the overall structure of a test device for preparing river and lake dredging slurry according to the present utility model;
[0019] Figure 2 is a schematic diagram of the structure of the perforated partition plate of a test device for preparing river and lake dredging slurry according to the present utility model;
[0020] Figure 3 is a schematic diagram of the structure of the mud crushing blade of a test device for preparing river and lake dredging slurry according to the present utility model.
[0021] Description of the reference numerals:
[0022] 10 - rotating shaft; 11 - motor; 12 - bracket;
[0023] 20 - Silo body; 21 - Pulp - breaking silo; 22 - Perforated partition; 221 - First through - hole; 23 - Pulp - making silo; 24 - Cover plate;
[0024] 30 - Pulp - breaking blade;
[0025] 40 - Mud - scraping blade; 41 - Mud - scraping part; 42 - Pulp - breaking part;
[0026] 50 - Stirring blade; 51 - Second through - hole;
[0027] 60 - Drain valve. Detailed implementation mode
[0028] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.
[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.
[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.
[0031] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments:
[0032] As Figures 1 - 3As shown in the figure, a device for preparing dredging mud for rivers and lakes in experiments, the device includes a cylindrical storage body 20, the top of the storage body 20 is provided with an opening for feeding silt and water, a cover plate 24 is provided at the opening, and a bracket 12 for assembling a motor 11 is provided above the opening; a slurry discharge valve 60 for discharging mud is provided on the bottom side wall of the storage body 20.
[0033] The internal cavity of the storage body 20 is divided into an upper silt crushing chamber 21 and a lower slurry preparation chamber 23 by a perforated partition plate 22; the perforated partition plate 22 is covered with first through holes 221; a rotating shaft 10 is arranged at the axial part of the storage body 20, and the rotating shaft 10 passes through the cover plate, the silt crushing chamber 21 and the perforated partition plate 22 from the top of the storage body 20 and extends to the bottom of the slurry preparation chamber 23, and the rotating shaft 10 is driven to rotate by a motor 11 fixedly assembled on the bracket 12; limited by the rotating shaft 10, the cover plate 24 can be arranged on one side or both sides of the rotating shaft 10 for easy opening and closing and feeding.
[0034] A plurality of silt crushing blades 30 are arranged on the part of the rotating shaft 10 located in the silt crushing chamber 21; a plurality of stirring blades 50 are arranged on the part of the rotating shaft 10 located in the slurry preparation chamber 23; both the silt crushing blades 30 and the stirring blades 50 can be driven to rotate by the rotating shaft 10. Preferably, both the silt crushing blades 30 and the stirring blades 50 are evenly arranged on the rotating shaft 10, and flat blades or arc-shaped blades can be selected according to needs.
[0035] For the device for preparing dredging mud for rivers and lakes in experiments provided in this embodiment, the process of preparing slurry from in-soluble agglomerated silt is decomposed into two processes of crushing and mixing. After the silt is crushed in the silt crushing chamber 21, it falls into the slurry preparation chamber 23 through the perforated partition plate 22 and is stirred and mixed with water, and the slurry preparation effect is better. And there will be slight vibrations during the rotation of the rotating shaft 10, which can accelerate the crushed silt to pass through the perforated partition plate 22; during the slurry preparation process, only the cover plate 24 needs to be opened, and water and silt are sequentially added into the silt crushing chamber 21. The equipment is simple to operate, and the device has a simple structure and low manufacturing cost.
[0036] As a preferred solution, the device for preparing dredging mud for rivers and lakes in experiments provided in this embodiment further includes a scraping blade 40, one end of the scraping blade 40 is fixed to the rotating shaft 10, and the other end is provided with a vertical scraping member 41, and the scraping member 41 is close to the side wall of the storage body 20 and the perforated partition plate 22. Specifically, the scraping blade 40 can be selected as a round rod structure; the scraping member 41 can be selected as a plate structure or a round rod structure; preferably, a plate structure perpendicular to its moving direction is selected. The purpose of setting the scraping blade 40 and the scraping member 41 is to stir the silt accumulated at the bottom edge of the silt crushing chamber 21 to ensure the stirring and crushing effects.
[0037] Furthermore, in order to prevent the lumps and blocks of sludge from being stuck in the first through hole 221 of the perforated partition plate 22, a plurality of sludge crushing pieces 42 are provided on the scraping blade 40, and the sludge crushing pieces 42 are arranged at an angle below the scraping blade 40. During the rotation of the rotating shaft 10, the sludge crushing pieces 42 cut and stir the lumps or blocks of sludge stuck in the first through hole 221, so that the sludge is separated from the first through hole 221.
[0038] In some embodiments, the mud crushing member 42 is arranged perpendicular to the mud scraping blade 40 ; further, the plurality of mud crushing members 42 are evenly distributed along the axial direction and the circumferential direction of the mud scraping blade 40 to assist in the mud crushing operation at the bottom of the mud crushing bin 21 .
[0039] More preferably, in this embodiment, the moving track of the mud crushing piece 42 covers all the first through holes 221 distributed on the perforated partition plate 22 .
[0040] In this embodiment, the stirring blade 50 is a vertically arranged blade to expand the stirring area and ensure the stirring effect; at the same time, in order to reduce the resistance of the stirring blade 50 , a second through hole 51 may be arranged on the stirring blade 50 .
[0041] Mud preparation process:
[0042] First, open the cover plate 24, and pour a certain amount of water into the mud crushing bin 21 according to the required pulping concentration, and the water flows into the pulping bin 23 through the first through hole 221 on the perforated partition 22; then, put the clumping river and lake bottom mud into the mud crushing bin 21; turn on the motor 11, the mud crushing blades 30 break up the blocky dredged mud, and the broken dredged mud falls into the water of the pulping bin 23 through the perforated partition 22, and is stirred and mixed with water by the stirring blades 50 of the pulping bin 23. The scraper blades 40 can further disturb the residual soil at the bottom of the mud crushing bin 21, and cooperate with the vibration effect of the rotating machine to accelerate the dredged mud to pass through the perforated partition 22.
[0043] Note: For the fixed connection methods described in this article, unless otherwise specified, existing fixed connection methods such as threaded connection, welding, and bonding can be used.
[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An experimental device for preparing river and lake dredging mud, characterized in that, It includes a silo body (20). An opening for discharging silt and water is provided at the top of the silo body (20), and the internal cavity is divided into an upper silt crushing chamber (21) and a lower pulp making chamber (23) by a perforated partition plate (22); a rotating shaft (10) is arranged at the axial part of the silo body (20), and the rotating shaft (10) extends from the silt crushing chamber (21) through the perforated partition plate (22) to the bottom of the pulp making chamber (23); a plurality of silt crushing blades (30) are arranged on the part of the rotating shaft (10) located in the silt crushing chamber (21); a plurality of stirring blades (50) are arranged on the part of the rotating shaft (10) located in the pulp making chamber (23); both the silt crushing blades (30) and the stirring blades (50) can be driven by the rotating shaft (10) to rotate.
2. The preparation device for dredging mud in rivers and lakes for experiments according to claim 1, characterized in that: It further includes a mud scraping blade (40). One end of the mud scraping blade (40) is fixed to the rotating shaft (10), and the other end is provided with a vertical mud scraping member (41), and the mud scraping member (41) is close to the side wall of the silo body (20) and the perforated partition plate (22).
3. The test device for preparing river and lake dredging slurry according to claim 2, wherein: A plurality of silt crushing members (42) are arranged on the mud scraping blade (40), and the silt crushing members (42) are arranged at an angle below the mud scraping blade (40).
4. The preparation device for river and lake dredging slurry for experiments according to claim 3, characterized in that: The silt crushing members (42) are uniformly distributed along the axial direction and the circumferential direction of the mud scraping blade (40).
5. The preparation device for dredging slurry of rivers and lakes for experiments according to claim 3, characterized in that: The moving track of the silt crushing members (42) covers all the first through holes (221) distributed on the perforated partition plate (22).
6. The preparation device for dredging slurry of rivers and lakes for experiments according to claim 1, wherein: The stirring blade (50) is a vertically arranged blade.
7. A device for preparing dredging mud for rivers and lakes in a test, characterized in that: Second through holes (51) are arranged on the stirring blade (50).
8. The test device for preparing river and lake dredging slurry according to claim 1, wherein: The silt crushing blade (30) is a flat blade or an arc-shaped blade; the stirring blade (50) is a flat blade or an arc-shaped blade.
9. A device for preparing dredging mud for rivers and lakes in experiments according to claim 1, characterized in that: A slurry discharge valve (60) for discharging slurry is arranged on the bottom side wall of the silo body (20).