Ammonia alkali white mud-based fluidized stabilized soil stirring device

Abstract

The utility model provides an ammonia alkali white mud-based fluid solidified soil stirring device, which belongs to the technical field of building material utilization and comprises a stirring tank, a planetary mechanism is arranged at the top of the stirring tank, and the planetary mechanism comprises a sun gear, a planetary gear meshed with the sun gear and a gear ring meshed with the planetary gear; a main stirring mechanism is mounted on the sun gear, an auxiliary stirring mechanism is mounted on the planet gear, and the main stirring mechanism and the auxiliary stirring mechanism are both located in the stirring tank and rotate in opposite directions. According to the utility model, by virtue of the characteristic that the sun gear and the planet gear of the planet mechanism rotate reversely, a stirring mechanism which rotates reversely is provided for the ammonia alkali white mud-based flow-state solidified soil, so that the problem that a stirred mixture can only flow in one direction to cause non-uniform mixing is solved; according to the device capable of providing reverse stirring, the stirring uniformity of the ammonia alkali white mud-based flow state solidified soil can be improved, so that the strength and the stability of the flow state solidified soil after pouring and solidification are improved, and the construction quality is further ensured.

Description

Technical Field

[0001] This utility model belongs to the field of building materials technology, specifically relating to a mixing device for ammonia-alkali white mud-based fluidized solidified soil. Background Technology

[0002] Fluidized solidified soil is a new type of building material, mainly used for backfilling and pouring in various types of trenches, foundation pits, pipe corridors, and mine tunnels. It is composed of waste foundation soil, a solidifying agent, and water mixed in a specific ratio, then thoroughly mixed using specific processes and machinery to form a pumpable, fluid-like reinforcing material. Before solidification, this material has strong fluidity, similar to a fluid, allowing it to be transported and filled to designated locations via pumping. Once placed and solidified, fluidized solidified soil forms a structure with certain strength, low permeability, water stability, and long-term stability, while also possessing low-carbon and environmentally friendly characteristics.

[0003] Fluidized solidified soil is highly fluid, low-carbon and environmentally friendly, and has the characteristics of high strength and low permeability. It is widely used in construction and civil engineering, can replace traditional materials, and has the significance of energy conservation and emission reduction.

[0004] Currently, fluidized bed solidified soil is mainly composed of waste foundation soil, solidifying agent, and water mixed in a specific ratio, while fluidized bed solidified soil based on ammonia-alkali white mud has not yet been reported. Ammonia-alkali white mud is a solid waste generated during the ammonia-alkali process for producing soda ash, and it is mainly composed of minerals such as sulfates, carbonates, and chlorides.

[0005] Because fluidized solidified soil has fluid properties, it needs to be thoroughly mixed to ensure the quality of construction. However, the mixing devices currently used for fluidized solidified soil can only make the fluid mixture flow in one direction, resulting in uneven mixing and affecting the strength of the solidified soil. Utility Model Content

[0006] This utility model provides a mixing device for ammonia-alkali white mud-based fluidized solidified soil, which aims to improve the uniformity of mixing, the strength after solidification, and the construction quality of fluidized solidified soil based on ammonia-alkali white mud.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a mixing device for ammonia-alkali white mud-based fluidized solidified soil is provided, comprising: a mixing tank, a planetary mechanism provided on the top of the mixing tank, the planetary mechanism including a sun gear, planetary gears meshing with the sun gear, and a gear ring meshing with the planetary gears; a main mixing mechanism is installed on the sun gear, and a secondary mixing mechanism is installed on the planetary gears, the main mixing mechanism and the secondary mixing mechanism are both located inside the mixing tank, and their rotation directions are opposite.

[0008] In one possible implementation, the main stirring mechanism includes a main stirring shaft mounted on the sun gear and a main stirring frame symmetrically arranged on the main stirring shaft. The main stirring frame includes a main stirring rod evenly arranged along the axial direction of the main stirring shaft and a spiral blade spirally wound on the main stirring rod.

[0009] In one feasible approach, two symmetrical main stirring rods are symmetrically fixed to the same mounting sleeve, which is bolted to the main stirring shaft.

[0010] In one possible implementation, the lower end of the main stirring shaft is equipped with a bottom scraper for scraping the bottom of the mixing tank.

[0011] In one feasible configuration, both ends of the two symmetrical main stirring rods extend close to the inner wall of the mixing tank.

[0012] In one feasible embodiment, a side scraper is provided at the end of the main stirring rod on the same side, and the side scraper forms a clearance fit with the inner wall of the mixing tank.

[0013] In one possible implementation, the auxiliary stirring mechanism includes an auxiliary stirring shaft mounted on the planetary gear and auxiliary stirring blades symmetrically fixed on the auxiliary stirring shaft. The auxiliary stirring blades are uniformly arranged along the axial direction of the auxiliary stirring shaft, and the auxiliary stirring blades are staggered from the main stirring rod.

[0014] In one possible implementation, the auxiliary stirring blades are arranged at an angle.

[0015] In one possible embodiment, the mixing tank has a mixing material feeding port at the top, a water inlet pipe on the upper side, and a discharge pipe on the lower side.

[0016] The mixing device for ammonia-alkali white mud-based fluidized solidified soil provided by this utility model has the following advantages compared with the prior art: by taking advantage of the characteristic of the sun gear and planet gears of the planetary mechanism rotating in opposite directions, it provides a mixing mechanism for ammonia-alkali white mud-based fluidized solidified soil with a reverse rotation, thereby changing the problem that the mixture can only flow in one direction and cause uneven mixing. This device that can provide reverse mixing can improve the mixing uniformity of ammonia-alkali white mud-based fluidized solidified soil, thereby improving the strength and stability of the fluidized solidified soil after pouring and solidification, and thus ensuring the construction quality. Attached Figure Description

[0017] Figure 1 A schematic diagram of the internal structure of the ammonia-alkali white mud-based fluidized solidified soil mixing device provided in this embodiment of the utility model;

[0018] Figure 2 for Figure 1A schematic diagram of the internal side structure of the mixing device for ammonia-alkali white mud-based fluidized solidified soil.

[0019] Figure 3 A schematic diagram of the layout structure of the main stirring mechanism provided in an embodiment of this utility model;

[0020] Figure 4 A top view of the planetary mechanism provided in an embodiment of this utility model;

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Drive motor; 2. Sun gear; 3. Planetary gear; 4. Gear ring; 5. Auxiliary stirring shaft; 6. Water inlet pipe; 7. Auxiliary stirring blades; 8. Discharge pipe; 9. Bottom scraper; 10. Mixing tank; 11. Mixed material feeding port; 12. Main stirring rod; 13. Main stirring shaft; 14. Side scraper; 15. Spiral blades; 16. Mounting sleeve. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] Please refer to the following: Figures 1 to 4 The mixing device for ammonia-alkali white mud-based fluidized solidified soil provided by this utility model will now be described. The mixing device for ammonia-alkali white mud-based fluidized solidified soil includes a mixing tank 10. A planetary mechanism is provided on the top of the mixing tank 10. The planetary mechanism includes a sun gear 2, planet gears 3 meshing with the sun gear 2, and a gear ring 4 meshing with the planet gears 3. A main mixing mechanism is installed on the sun gear 2, and a secondary mixing mechanism is installed on the planet gears 3. Both the main mixing mechanism and the secondary mixing mechanism are located inside the mixing tank 10, and their rotation directions are opposite.

[0025] The mixing tank 10 is equipped with a drive motor 1 that drives the sun gear 2 to rotate. The gear ring 4 extends upward to form an outer cover that covers the sun gear 2 and planet gears 3, and the drive motor 1 is fixed on the outer cover.

[0026] The mixing device for ammonia-alkali white mud-based fluidized solidified soil provided by this utility model has the following advantages compared with the prior art: by taking advantage of the counter-rotating characteristics of the sun gear 2 and planet gear 3 of the planetary mechanism, a counter-rotating mixing mechanism is provided for the ammonia-alkali white mud-based fluidized solidified soil. This changes the problem that the mixture can only flow in one direction, resulting in uneven mixing. This device that can provide counter-mixing can improve the mixing uniformity of the ammonia-alkali white mud-based fluidized solidified soil, thereby improving the strength and stability of the fluidized solidified soil after pouring and solidification, and thus ensuring the construction quality.

[0027] In some embodiments, see Figures 1 to 3 As shown, the main stirring mechanism includes a main stirring shaft 13 mounted on the sun gear 2 and a main stirring frame symmetrically arranged on the main stirring shaft 13. The main stirring frame includes a main stirring rod 12 evenly arranged along the axial direction of the main stirring shaft 13 and a spiral blade 15 spirally wound on the main stirring rod 12. The drive motor 1 is connected to the main stirring shaft 13, and by providing the spiral blade 15 on the main stirring rod 12, the uniformity of local mixing of the mixture can be further improved.

[0028] The main stirring frame, as the primary mechanism for mixing the mixture, stirs the mixture in a clockwise direction over a large area within the mixing tank 10. The secondary stirring mechanisms stir the mixture in a counterclockwise direction within their respective half-zones. When the clockwise and counterclockwise rotating mixtures meet, they change direction again, ensuring that the mixture is thoroughly and evenly mixed. This avoids the situation where the mixture cannot be evenly mixed due to the mixture rotating in layers in only one direction.

[0029] In some embodiments, see Figures 1 to 3 As shown, two symmetrical main stirring rods 12 are symmetrically fixed on the same mounting sleeve 16, which is then fixed to the main stirring shaft 13 by bolts. This design makes the main stirring frame compact, facilitating storage, transportation, handling, installation, disassembly, and replacement.

[0030] In some embodiments, see Figures 1 to 3 As shown, a bottom scraper 9 for scraping the bottom of the mixing tank 10 is installed at the lower end of the main stirring shaft 13. Fluids tend to settle to the bottom due to their own weight. Once the mixture settles to the bottom of the mixing tank 10, it is not easily stirred and will gradually accumulate, forming a blind zone for stirring. This is not conducive to the full utilization of the material and also makes the mixing tank 10 difficult to clean. The bottom scraper 9 can scrape the mixture at the bottom of the mixing tank 10, making it flow, improving the utilization rate of the material, and avoiding the problem of the mixture settling at the bottom and being difficult to clean.

[0031] In some embodiments, see Figures 1 to 3 As shown, both ends of the two symmetrical main stirring rods 12 extend close to the inner wall of the mixing tank 10. This design allows the main stirring rods 12 and the auxiliary stirring blades 7 to fully compensate for each other's mixing gaps, and the main stirring rods 12 can maximize the mixing of the material over a wide range, fully agitating the mixture and improving the uniformity of the mixture.

[0032] In some embodiments, see Figures 1 to 3As shown, a side scraper 14 is provided at the end of the main stirring rod 12 on the same side, and the side scraper 14 forms a clearance fit with the inner wall of the mixing tank 10. Similarly, fluid materials can easily adhere to the side wall of the mixing tank 10 and are difficult to flow with stirring. By scraping the inner wall of the mixing tank 10 with the side scraper 14, the material is made to flow, improving the utilization rate of the material and avoiding the problem of the mixture sticking to the side wall and being difficult to clean.

[0033] In some embodiments, see Figures 1 to 2 As shown, the auxiliary stirring mechanism includes an auxiliary stirring shaft 5 mounted on the planetary gear 3 and auxiliary stirring blades 7 symmetrically fixed on the auxiliary stirring shaft 5. The auxiliary stirring blades 7 are evenly arranged along the axial direction of the auxiliary stirring shaft 5, and are staggered from the main stirring rod 12. The staggered arrangement of the auxiliary stirring blades 7 and the main stirring rod 12 can fill the gaps in their respective stirring areas, thereby improving the mixing uniformity of the mixture.

[0034] In this application, the auxiliary stirring shaft 5 has the functions of rotation and revolution along with the planetary gear. Therefore, a pair of auxiliary stirring blades 7 are provided at the lower end of the auxiliary stirring shaft, which can slide and cooperate with the bottom of the mixing tank. While scraping the mixture at the bottom of the mixing tank, they also play a role in stabilizing the auxiliary stirring shaft.

[0035] Alternatively, the auxiliary stirring shaft 5 can also be equipped with helical blades.

[0036] In some embodiments, see Figures 1 to 2 As shown, the auxiliary stirring blades 7 are set at an angle, which can improve the stirring effect.

[0037] In some embodiments, see Figure 1 As shown, the top of the mixing tank 10 is provided with a mixing material feeding port 11, the upper side of the mixing tank 10 is provided with a water inlet pipe 6, and the lower side is provided with a discharge pipe 8.

[0038] When mixing ammonia-alkali white mud-based fluidized solidified soil, ammonia-alkali white mud, waste foundation soil, and solidifying agent are mixed in proportion and added to the mixing tank 10 through the mixture feeding port 11. At the same time, water is added in proportion through the water inlet pipe 6. After the drive motor 1 is started and the mixture is stirred for a certain period of time, the uniformly mixed mixture can be pumped to the designated location using the pump connected to the discharge pipe 8.

[0039] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ammonia-alkali white mud based fluidified solidified soil mixing device, characterized by, The application relates to a stirring tank (10) provided with a planetary mechanism at the top, wherein the planetary mechanism comprises a sun gear (2), a planet gear (3) engaged with the sun gear (2) and a ring gear (4) engaged with the planet gear (3); a main stirring mechanism is installed on the sun gear (2), a secondary stirring mechanism is installed on the planet gear (3), and the main stirring mechanism and the secondary stirring mechanism are located in the stirring tank (10) and rotate in opposite directions. The main stirring mechanism comprises a main stirring shaft (13) installed on the sun gear (2) and a main stirring frame symmetrically arranged on the main stirring shaft (13), wherein the main stirring frame comprises main stirring rods (12) uniformly arranged along the axis direction of the main stirring shaft (13) and spiral blades (15) spirally wound on the main stirring rods (12).

2. The ammonia-alkali white liquor based fluidified soil stabilization device of claim 1, wherein Two symmetrical main stirring rods (12) are symmetrically fixed on the same mounting sleeve (16), and the mounting sleeve (16) is fixed on the main stirring shaft (13) through bolts.

3. The ammonia-alkali white liquor based fluidified soil stabilization device of claim 2, wherein, A bottom scraper (9) for scraping the bottom of the stirring tank (10) is installed at the lower end of the main stirring shaft (13).

4. The ammonia-alkali white liquor based fluidified soil stabilization device of claim 2, wherein, Both ends of the two symmetrical main stirring rods (12) extend to the inner wall of the stirring tank (10).

5. The ammonia-alkali white liquor based fluidified soil stabilization device of claim 2, wherein The end of the main stirring rod (12) on the same side is provided with a side scraper (14) which is in gap cooperation with the inner wall of the stirring tank (10).

6. The ammonia-alkali white-lime mud base fluidified solidified soil mixing apparatus as claimed in claim 5, wherein The secondary stirring mechanism comprises a secondary stirring shaft (5) installed on the planet gear (3) and secondary stirring blades (7) symmetrically fixed on the secondary stirring shaft (5), wherein the secondary stirring blades (7) are uniformly arranged along the axis direction of the secondary stirring shaft (5), and the secondary stirring blades (7) are arranged in a staggered manner with the main stirring rods (12).

7. The ammonia lime white mud based fluidified solidified soil mixing apparatus of claim 2, wherein, The secondary stirring blades (7) are arranged in an inclined manner.

8. The ammonia-alkali white liquor based fluidified soil stabilization device of claim 7, wherein, The top of the stirring tank (10) is provided with a mixing material feeding port (11), the upper end side of the stirring tank (10) is provided with a water inlet pipe (6), and the lower end side is provided with a discharge pipe (8).

9. The ammonia lime white mud based fluidified solidified soil mixing apparatus of claim 1 wherein, ​

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