Silicate cement paste mixing device
By combining the differential rotation of the inner and outer mixing racks with the filter screen, the problems of insufficient mixing and inconsistent sand and gravel particle sizes are solved, thereby improving the uniformity and stability of the cement slurry and eliminating the mixing blind zone.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU LINAN WUYUE BUSINESS MANAGEMENT CO LTD
- Filing Date
- 2025-01-22
- Publication Date
- 2026-04-24
AI Technical Summary
Existing mixing equipment has a working blind zone inside the mixing drum, which leads to insufficient mixing of cement slurry and inconsistent particle size of sand and gravel, affecting the uniformity and stability of the cement slurry.
It adopts a double-layer spiral inner and outer mixing rack design, with the inner and outer mixing racks rotating at different speeds, and a filter screen seat placed between them to screen sand and gravel. Combined with differential mixing, it achieves thorough and uniform mixing.
It improves the uniformity and stability of cement slurry, reduces the mixing of large sand and gravel, eliminates blind spots in the mixing process, and meets construction requirements.
Smart Images
Figure CN224158625U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cement slurry mixing technology, specifically to a silicate cement slurry mixing device. Background Technology
[0002] Cement slurry mixing equipment is used to mix, stir, dissolve, and store cement slurry during the preparation process, facilitating the production of cement slurry. The agitator is a device that forces the convection of liquid and gas media and mixes them evenly. Cement slurry is the main medium for secondary grouting and filling of dam bodies and for plugging leaks. The grouting operation involves adding water into a container, stirring the water in a certain direction, and then pouring in cement material in a certain proportion. Under the action of the agitator, the mixture is thoroughly stirred evenly.
[0003] Due to structural limitations, existing mixing equipment has blind spots in the mixing drum, preventing the cement slurry from being fully and uniformly mixed and failing to meet construction specifications. Furthermore, during the cement slurry mixing process, the varying particle sizes of sand and gravel, with larger particles mixing into the slurry, reduce the uniformity and stability of the slurry, thus affecting its quality.
[0004] This case arose in order to resolve the aforementioned issues. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this invention provides a silicate cement slurry mixing device, which solves the problems mentioned in the background section.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a silicate cement slurry mixing device, comprising a support and a mixing tank, wherein the mixing tank is pivotally connected within the support and rotates via a drive component. The mixing tank contains a mixing mechanism, which includes an inner mixing frame located in the center and an outer mixing frame on the periphery. Both the inner and outer mixing frames are spiral-shaped. The outer mixing frame is fixed to the inner wall at the bottom of the mixing tank via a support rod. The inner mixing frame rotates independently of the outer mixing frame via a top-mounted drive component. A filter screen is movably inserted between the outer and inner mixing frames.
[0009] Preferably, the driving component includes a gear ring mounted on the outer wall of the mixing tank and a motor mounted on a bracket, wherein the output end of the motor is connected to a gear that meshes with the gear ring.
[0010] Preferably, the second driving component includes a cover that can be movably closed at the upper end of the frame, a second motor is installed in the middle of the cover, and the output end of the second motor is connected to a plug rod.
[0011] Preferably, the inner stirring rack is limited by a connecting rod at the outer connecting position, the bottom of the connecting rod is connected to a rotating seat, and the rotating seat is pivotally connected to the bottom of the stirring tank; the top of the connecting rod is connected to a linkage ring, and the top of the linkage ring is provided with a slot, the size of which is adapted to the size of the insertion rod and the slot.
[0012] Preferably, the outer stirring rack and the inner stirring rack rotate at a different speed.
[0013] (III) Beneficial Effects
[0014] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:
[0015] 1. This utility model provides a silicate cement slurry mixing device, which is equipped with an outer mixing frame that rotates synchronously with the mixing drum, and an inner mixing frame that is driven to rotate by a motor at the top, so as to achieve independent rotation with the outer mixing frame. Differential speed can be used to form staggered mixing, which further improves the full and uniform mixing of cement slurry while screening.
[0016] 2. This utility model discloses a silicate cement slurry mixing device, in which a filter screen seat is movably inserted between the outer and inner mixing frames. The filter screen seat can be fixed by inserting it into the rotating base and can be quickly replaced as needed. The filter screen seat can be used to screen sand and gravel of different particle sizes, further reducing the amount of larger sand and gravel mixed into the cement slurry.
[0017] 3. This utility model discloses a silicate cement slurry mixing device, which can be used in two ways. One is to place it in a filter screen seat, so that the sand and gravel particles are filtered and stirred to avoid uneven particle size and improve the uniformity and stability of the cement slurry. The other is to remove the filter screen seat, so that the entire inner and outer mixing racks can be used for mixing at the same time, which can reduce the blind area inside the mixing tank and achieve full and uniform mixing. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the present invention from an upward position;
[0020] Figure 3 This is a schematic diagram of the cover of this utility model being opened;
[0021] Figure 4 This is a schematic diagram of the internal structure of the mixing tank of this utility model;
[0022] Figure 5 This is a side view of the internal structure of the mixing tank of this utility model;
[0023] Figure 6 This is a disassembled schematic diagram of the internal structure of the mixing tank of this utility model.
[0024] In the diagram: 1. Frame; 2. Cover; 3. Motor II; 4. Mixing tank; 5. Gear ring; 6. Motor I; 7. Gear; 8. Discharge port I; 9. Discharge port II; 10. Support plate; 11. Filter screen base; 12. Inner mixing frame; 13. Outer mixing frame; 14. Support; 15. Slot; 16. Support rod; 17. Connecting rod. Detailed Implementation
[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0026] like Figure 1-6 As shown: A silicate cement slurry mixing device includes a support and a mixing tank 4. The mixing tank 4 is pivotally connected to a plate 10 mounted inside the support. A gear ring 5 is installed on the outer wall of the mixing tank 4. A motor 6 is installed on the support. The output end of the motor 6 is connected to a gear 7 that meshes with the gear ring 5, so that the output of the motor 6 drives the mixing tank 4 to rotate.
[0027] The mixing tank 4 has a built-in mixing mechanism, which includes an inner mixing frame 12 located in the middle and an outer mixing frame 13 located on the periphery. Both the outer mixing frame 13 and the inner mixing frame 12 are spiral-shaped. The outer mixing frame 13 is fixed to the inner wall of the bottom of the mixing tank 4 by a support rod 10. The outer side of the inner mixing frame 12 is limited by a connecting rod 17. The bottom of the connecting rod 17 is connected to a rotating seat, which is pivotally connected to the bottom of the mixing tank 4. A linkage ring is connected to the top of the connecting rod 17.
[0028] The top of the linkage ring has a slot 15. The upper end of the frame 1 can be movably covered by the cover 2. The middle of the cover 2 is equipped with a motor 3. The output end of the motor 3 is connected to a plug rod (not shown in the figure due to the angle). The plug rod can be inserted into the slot 15 of the linkage ring after the cover 2 is closed.
[0029] Specifically, the outer mixing rack 13 rotates synchronously with the mixing tank 4, while the inner mixing rack 12 is driven to rotate by the motor 3 at the top, achieving independent rotation with the outer mixing rack 13. Differential speed can be used to form staggered mixing, further improving the full and uniform mixing of cement slurry while screening.
[0030] The filter screen seat 11, which is movably inserted between the outer mixing frame 13 and the inner mixing frame 12, can be fixed by plugging it into the rotating seat and can be quickly replaced as needed. It can be used to screen sand and gravel of different particle sizes, further reducing the mixing of larger sand and gravel into cement slurry.
[0031] The mixing device can be used in two ways. One is to insert the filter screen 11, which filters and mixes the sand and gravel to avoid uneven particle size and improve the uniformity and stability of the cement slurry. The other is to remove the filter screen 11, so that the entire inner mixing frame 12 and outer mixing frame 13 can mix at the same time, which can reduce the blind area inside the mixing tank 4 and achieve full and uniform mixing.
[0032] The above-described embodiments are provided for illustrative purposes. Based on the above description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this utility model is not limited to the contents of the specification; its protection scope must be determined according to the claims.
Claims
1. A silicate cement slurry mixing device, comprising a support frame and a mixing tank, wherein the mixing tank is pivotally connected within the support frame and rotates via a drive component, characterized in that: The mixing tank has a built-in mixing mechanism, which includes an inner mixing frame in the middle and an outer mixing frame on the periphery. Both the outer and inner mixing frames are spiral-shaped. The outer mixing frame is fixed to the inner wall of the bottom of the mixing tank by a support rod. The inner mixing frame rotates independently of the outer mixing frame by a top external drive component. A filter screen is movably inserted between the outer and inner mixing frames.
2. The silicate cement slurry mixing device according to claim 1, characterized in that: The drive unit includes a gear ring mounted on the outer wall of the mixing tank and a motor mounted on a bracket. The output end of the motor is connected to a gear that meshes with the gear ring.
3. The silicate cement slurry mixing device according to claim 1, characterized in that: The second driving component includes a cover that can be movably closed at the upper end of the frame, a second motor is installed in the middle of the cover, and the output end of the second motor is connected to a plug rod.
4. The silicate cement slurry mixing device according to claim 3, characterized in that: The inner stirring rack is limited by the connecting rod of the outer connecting position. The bottom of the connecting rod is connected to a rotating seat, which is pivotally connected to the bottom of the stirring tank. The top of the connecting rod is connected to a linkage ring, and the top of the linkage ring has a slot, with the insertion rod and the slot size being adapted to each other.
5. The silicate cement slurry mixing device according to claim 1, characterized in that: The outer and inner mixing racks rotate at different speeds.