A cement slurry batching and mixing device
By designing a cement slurry mixing device and utilizing sensors and controllers to achieve automatic adjustment of the cement slurry, the problem of inaccurate slurry mixing in water conservancy projects was solved, and the efficiency and accuracy of the grouting process were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 14TH BUREAU GRP NO 3 ENG CO LTD
- Filing Date
- 2025-03-14
- Publication Date
- 2026-05-29
AI Technical Summary
In water conservancy projects, the limited space on the working surface during grouting makes it impossible to mix the grout on-site, resulting in inaccurate adjustment of the grout mix ratio and low efficiency of manual operation.
A cement slurry batching and mixing device was designed, including a trolley, a double-layer support, a water storage tank, a cement powder tank, a slurry mixing tank, a slurry storage tank, and a grouting machine. It is equipped with sensors and a motor, and the water-cement ratio is automatically adjusted through a controller to ensure that the cement slurry is mixed on demand on site.
It enables secondary automatic grout adjustment, ensuring accurate water-cement ratio, improving construction efficiency and operational precision, and meeting the real-time adjustment requirements of the grouting process.
Smart Images
Figure CN224296159U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cement slurry preparation technology, and in particular relates to a cement slurry batching and mixing device. Background Technology
[0002] In water diversion tunnels of water conservancy projects, there is an important process: backfill grouting and consolidation grouting. During the grouting process, in accordance with the specifications, the water-cement ratio is generally divided into several levels, such as 4:1, 3:1, 2:1, 1:1, 0.8:1, etc. During the grouting process, the grout mix ratio is adjusted in real time according to the flow rate and pressure parameters to meet the design requirements.
[0003] However, in actual construction, due to limited space at the work site and the large volume of grouting, it is impossible to mix the grout on-site. Generally, a centralized grouting station is used outside the tunnel, and the mixed cement grout is then transported to the work site using high-pressure equipment. Typically, the grouting station can only produce grout according to one mix ratio, which is then adjusted after delivery to the work site. Although the grouting station can produce cement grout of various grades, the long-distance transport cannot meet the real-time adjustment requirements of the work site.
[0004] The conventional practice is to pile up a certain amount of bagged cement at the work site and adjust the water-cement ratio manually by adding water or dry cement powder. However, manual operation results in inaccurate dosage and low work efficiency. Utility Model Content
[0005] In view of this, the present invention provides a cement slurry batching and mixing device to solve the above problems.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A cement slurry mixing device includes: a trolley, a double-layer support frame, a water storage tank, a cement powder tank, a controller, a slurry mixing tank, a slurry storage tank, and a grouting machine. The double-layer support frame is fixedly mounted on the trolley and is provided with an upper support plate and a lower support plate. The cement powder tank and the controller are mounted on the upper support plate. The slurry mixing tank includes a mixing tank, a first motor, and a first mixing assembly. The mixing tank is disposed on the lower support plate. The first motor is mounted on the top of the mixing tank, and its output end extends into the mixing tank. A mixing assembly is located inside the slurry mixing tank, and its top is fixedly connected to the output end of the first motor; the output end of the cement powder box device passes through the upper support plate and is connected to the slurry mixing tank via a hose; the water storage tank device and the slurry storage tank device are mounted on the trolley and located on both sides of the double-layer support, and both the water storage tank device and the slurry storage tank device are connected to the pipeline of the slurry mixing tank; the grouting machine is mounted on the trolley and located on the side of the slurry storage tank device away from the double-layer support; the water storage tank device, the cement powder box device, and the first motor are all electrically connected to the controller.
[0008] Furthermore, the slurry mixing tank device also includes a first weight sensor, a density sensor, and a level gauge; the first weight sensor is disposed between the slurry mixing tank and the lower support plate, the density sensor and the level gauge are installed on the inner side wall of the slurry mixing tank, and the first weight sensor, the density sensor and the level gauge are all electrically connected to the controller.
[0009] Furthermore, the cement powder box device includes a cement powder box, which is mounted on the upper support plate. The output end of the cement powder box passes through the upper support plate and is connected to the slurry mixing tank through a hose.
[0010] Furthermore, the cement powder box device also includes a second motor and a discharge screw. The second motor is installed at the top of the cement powder box, and the output end of the second motor extends into the cement powder box. The discharge screw is located inside the cement powder box, and the top end of the discharge screw is fixedly connected to the output end of the second motor. The second motor is electrically connected to the controller.
[0011] Furthermore, the water storage tank device includes a water storage tank and a water pump. The water storage tank is installed on the trolley and located on the side of the double-layer support away from the slurry storage tank device. The water pump is located inside the water storage tank and is connected to the slurry mixing tank pipeline. The water pump is electrically connected to the controller.
[0012] Furthermore, the slurry storage tank device includes a slurry storage tank, which is installed on the trolley and located on the side of the double-layer support away from the water storage tank device. The slurry mixing tank and the grouting machine are both connected to the slurry storage tank pipeline.
[0013] Furthermore, the slurry storage tank device also includes a third motor and a second stirring assembly. The third motor is installed at the top of the slurry storage tank, and the output end of the third motor extends into the slurry storage tank. The second stirring assembly is located inside the slurry storage tank, and the top of the second stirring assembly is fixedly connected to the output end of the third motor. The third motor is electrically connected to the controller.
[0014] Furthermore, the slurry storage tank device also includes a second weight sensor, which is disposed between the trolley and the slurry storage tank.
[0015] Furthermore, the slurry storage tank device also includes an electromagnetic valve, which is installed on the connecting pipeline between the slurry mixing tank and the slurry storage tank.
[0016] Furthermore, the grouting machine is equipped with a pressure gauge, a density gauge, and a flow meter.
[0017] The beneficial effects of this utility model are as follows:
[0018] The present invention includes a slurry mixing tank equipped with a density sensor and a level gauge, and a first weight sensor at the bottom for monitoring the parameters of the cement slurry with a fixed water-cement ratio input from the pulping station into the mixing tank. A trolley transports cement to the site. Based on the required water-cement ratio of the cement slurry, the controller activates the second motor and water pump, allowing the required amount of cement powder to enter the mixing tank under the action of the discharge screw. The required amount of water from the water storage tank is supplied into the mixing tank, and the controller controls the first motor to rotate, causing the first mixing component to mix the cement slurry from the pulping station with the newly added cement powder and water, ultimately obtaining the cement slurry with the required water-cement ratio on site, thus realizing the secondary automatic slurry adjustment. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0020] Figure 1 This is a front view of a cement slurry batching and mixing device.
[0021] Figure 2 This is a cross-sectional view of a cement slurry batching and mixing device.
[0022] Figure 3 yes Figure 1 AA sectional view.
[0023] In the figure:
[0024] 10-Trolley, 20-Double-layer bracket, 21-Upper support plate, 22-Lower support plate, 30-Water storage tank device, 31-Water storage tank, 32-Water pump, 40-Cement powder box device, 41-Cement powder box, 42-Second motor, 43-Discharge screw, 50-Controller, 60-Mixing tank device, 61-Mixing tank, 62-First motor, 63-First mixing assembly, 64-First weight sensor, 65-Density sensor, 66-Level gauge, 70-Mixing tank device, 71-Mixing tank, 72-Third motor, 73-Second mixing assembly, 74-Second weight sensor, 75-Solenoid valve, 80-Grouting machine, 90-Hose. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] See attached document Figure 1-3As shown, this utility model provides a cement slurry batching and mixing device, including: a trolley 10, a double-layer support 20, a water storage tank device 30, a cement powder box device 40, a controller 50, a slurry mixing tank device 60, a slurry storage tank device 70, and a grouting machine 80. The double-layer support 20 is fixedly installed on the trolley 10, and the double-layer support 20 is provided with an upper support plate 21 and a lower support plate 22. The cement powder box device 40 and the controller 50 are installed on the upper support plate 21. The slurry mixing tank device 60 includes a slurry mixing tank 61, a first motor 62, and a first mixing assembly 63. The slurry mixing tank 61 is set on the lower support plate 22, and the slurry mixing tank 61 is provided with an inlet communicating with a slurry preparation station. The first motor 62 is installed on the slurry mixing tank 61. At the top, the output end of the first motor 62 extends into the slurry mixing tank 61. The first mixing assembly 63 is located inside the slurry mixing tank 61, and its top is fixedly connected to the output end of the first motor 62. The output end of the cement powder box device 40 passes through the upper support plate 21 and is connected to the slurry mixing tank 61 via a hose 90. The water storage tank device 30 and the slurry storage tank device 70 are installed on the trolley 10 and located on both sides of the double-layer support 20. Both the water storage tank device 30 and the slurry storage tank device 70 are connected to the pipeline of the slurry mixing tank 61. The grouting machine 80 is installed on the trolley 10 and located on the side of the slurry storage tank device 70 away from the double-layer support 20. The water storage tank device 30, the cement powder box device 40, and the first motor 62 are all electrically connected to the controller 50.
[0027] The mixing tank device 60 also includes a first weight sensor 64, a density sensor 65, and a level gauge 66; the first weight sensor 64 is disposed between the mixing tank 61 and the lower support plate 22, the density sensor 65 and the level gauge 66 are installed on the inner side wall of the mixing tank 61, and the first weight sensor 64, the density sensor 65 and the level gauge 66 are all electrically connected to the controller 50.
[0028] The cement slurry with a fixed water-cement ratio prepared by the pulping station is input into the mixing tank 61 and then transported to the site. The density sensor 65 and level gauge 66 inside the mixing tank 61, and the first weight sensor 64 at the bottom monitor the parameter information of the cement slurry with a fixed water-cement ratio input into the mixing tank 61 by the pulping station. According to the cement slurry with the required water-cement ratio on site, the controller 50 controls the water storage tank device 30 and the cement powder tank device 40 to open, so that the required amount of cement powder and the required amount of water in the water storage tank 31 are supplied into the mixing tank 61. The controller 50 controls the first motor 62 to rotate, so that the first mixing component 63 mixes the cement slurry from the pulping station with the newly entered cement powder and water, and finally obtains the cement slurry with the required water-cement ratio on site, realizing the secondary automatic mixing of cement slurry.
[0029] In one optional embodiment, the cement powder box device 40 includes a cement powder box 41, which is mounted on an upper support plate 21. The output end of the cement powder box 41 passes through the upper support plate 21 and is connected to the slurry mixing tank 61 via a hose 90.
[0030] In one optional embodiment, the cement powder box device 40 further includes a second motor 42 and a discharge screw 43. The second motor 42 is mounted on the top of the cement powder box 41, and its output end extends into the cement powder box 41. The discharge screw 43 is located inside the cement powder box 41, and its top end is fixedly connected to the output end of the second motor 42. The second motor 42 is electrically connected to the controller 50. The controller 50 controls the second motor 42 to turn on, driving the discharge screw 43 to rotate, thus feeding the cement powder in the cement powder box 41 downwards through the hose 90 into the slurry mixing tank 61.
[0031] In one optional embodiment, the water storage tank device 30 includes a water storage tank 31 and a water pump 32. The water storage tank 31 is mounted on the trolley 10, located on the side of the double-layer support 20 away from the slurry storage tank device 70. The water pump 32 is located inside the water storage tank 31 and is connected to the slurry mixing tank 61 via pipeline. The water pump 32 is also electrically connected to the controller 50. The controller 50 controls the water pump 32 to start, driving the water pump 32 to input water from the water storage tank 31 into the slurry mixing tank 61.
[0032] In one optional embodiment, the slurry storage tank device 70 includes a slurry storage tank 71, which is mounted on the trolley 10 and located on the side of the double-layer support 20 away from the water storage tank device 30. The slurry mixing tank 61 and the grouting machine 80 are both connected to the slurry storage tank 71 via pipelines.
[0033] In one optional embodiment, the slurry storage tank device 70 further includes a third motor 72 and a second stirring assembly 73. The third motor 72 is mounted on the top of the slurry storage tank 71, and its output end extends into the slurry storage tank 71. The second stirring assembly 73 is located inside the slurry storage tank 71, and its top end is fixedly connected to the output end of the third motor 72. The third motor 72 is electrically connected to the controller 50. The controller 50 controls the rotation of the third motor 72, driving the second stirring assembly 73 to stir the cement slurry from the slurry preparation station with the newly introduced cement powder and water.
[0034] In one optional embodiment, the slurry storage tank device 70 further includes a second weight sensor 74, which is disposed between the trolley 10 and the slurry storage tank 71. The second weight sensor 74 monitors the weight of the cement slurry after secondary conditioning in the slurry storage tank 71 in real time.
[0035] In one optional embodiment, the slurry storage tank device 70 further includes a solenoid valve 75, which is installed on the connecting pipeline between the slurry mixing tank 61 and the slurry storage tank 71. After the cement slurry in the slurry mixing tank 61 is stirred evenly, the controller 50 controls the solenoid valve 75 to open, storing the cement slurry after secondary mixing in the slurry storage tank 71.
[0036] In one optional embodiment, the grouting machine 80 is equipped with a pressure gauge, a density meter, and a flow meter. The pressure gauge, density meter, and flow meter monitor the parameters of the cement slurry in real time during the on-site grouting process.
[0037] Working principle: The cement slurry with a fixed water-cement ratio prepared by the pulping station is input into the mixing tank 61 and then transported to the site. The density sensor 65 and level gauge 66 in the mixing tank 61, and the first weight sensor 64 at the bottom monitor the parameter information of the cement slurry with a fixed water-cement ratio input into the mixing tank 61 by the pulping station. According to the cement slurry with the required water-cement ratio on site, the controller 50 controls the second motor 42 and the water pump 32 to start. The controller 50 controls the second motor 42 to start, so that the required amount of cement powder enters the mixing tank 61 through the hose 90 under the action of the discharge screw 43. The controller 50 controls the water pump 32 to start and supply the required amount of water from the water storage tank 31 into the mixing tank 61. The controller 50 controls the first motor 62 to rotate, so that the first mixing component 63 mixes the cement slurry from the pulping station with the newly entered cement powder and water, and finally obtains the cement slurry with the required water-cement ratio on site, realizing the secondary automatic mixing of cement slurry. The controller 50 controls the solenoid valve 75 to open, allowing the secondary-adjusted cement slurry to enter and be stored in the storage tank 71. During on-site grouting, the grouting machine 80 injects the secondary-adjusted cement slurry from the storage tank into the construction site. The pressure gauge, density meter, and flow meter monitor the parameters of the cement slurry in real time during the on-site grouting process and promptly feed them back to the controller 50.
[0038] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0039] The above description of the disclosed embodiments enables those 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 general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not 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
1. A cement slurry batching and mixing device, characterized in that, include: The equipment includes a trolley (10), a double-layer support (20), a water storage tank device (30), a cement powder box device (40), a controller (50), a slurry mixing tank device (60), a slurry storage tank device (70), and a grouting machine (80). The double-layer support (20) is fixedly installed on the trolley (10). The double-layer support (20) is provided with an upper support plate (21) and a lower support plate (22). The cement powder box device (40) and the controller (50) are installed on the upper support plate (21). The slurry mixing tank device (60) includes a slurry mixing tank (61), a first motor (62), and a first mixing assembly (63). The slurry mixing tank (61) is located on the lower support plate (22). The first motor (62) is installed at the top of the slurry mixing tank (61). The output end of the first motor (62) extends into the slurry mixing tank (61). The first mixing assembly (63) is located inside the mixing tank (61), and its top is fixedly connected to the output end of the first motor (62); the output end of the cement powder box device (40) passes through the upper support plate (21) and is connected to the mixing tank (61) through the hose (90); the water storage tank device (30) and the slurry storage tank device (70) are installed on the trolley (10) and located on both sides of the double-layer support (20), and the water storage tank device (30) and the slurry storage tank device (70) are both connected to the pipeline of the mixing tank (61); the grouting machine (80) is installed on the trolley (10) and located on the side of the slurry storage tank device (70) away from the double-layer support (20); the water storage tank device (30), the cement powder box device (40) and the first motor (62) are all electrically connected to the controller (50).
2. The cement slurry batching and mixing device according to claim 1, characterized in that, The mixing tank device (60) further includes a first weight sensor (64), a density sensor (65), and a level gauge (66); the first weight sensor (64) is disposed between the mixing tank (61) and the lower support plate (22), the density sensor (65) and the level gauge (66) are installed on the inner side wall of the mixing tank (61), and the first weight sensor (64), the density sensor (65) and the level gauge (66) are all electrically connected to the controller (50).
3. The cement slurry batching and mixing device according to claim 1, characterized in that, The cement powder box device (40) includes a cement powder box (41), which is installed on the upper support plate (21). The output end of the cement powder box (41) passes through the upper support plate (21) and is connected to the slurry mixing tank (61) through a hose (90).
4. A cement slurry batching and mixing device according to claim 3, characterized in that, The cement powder box device (40) further includes a second motor (42) and a discharge screw (43). The second motor (42) is installed at the top of the cement powder box (41), and the output end of the second motor (42) extends into the cement powder box (41). The discharge screw (43) is located inside the cement powder box (41), and the top end of the discharge screw (43) is fixedly connected to the output end of the second motor (42). The second motor (42) is electrically connected to the controller (50).
5. A cement slurry batching and mixing device according to claim 1, characterized in that, The water storage tank device (30) includes a water storage tank (31) and a water pump (32). The water storage tank (31) is installed on the trolley (10) and located on the side of the double-layer support (20) away from the slurry storage tank device (70). The water pump (32) is located inside the water storage tank (31). The water pump (32) is connected to the slurry mixing tank (61) via pipeline. The water pump (32) is electrically connected to the controller (50).
6. A cement slurry batching and mixing device according to claim 1, characterized in that, The slurry storage tank device (70) includes a slurry storage tank (71), which is installed on the trolley (10) and located on the side of the double-layer support (20) away from the water storage tank device (30). The slurry mixing tank (61) and the grouting machine (80) are both connected to the slurry storage tank (71) via pipeline.
7. A cement slurry batching and mixing device according to claim 6, characterized in that, The slurry storage tank device (70) also includes a third motor (72) and a second stirring assembly (73). The third motor (72) is installed at the top of the slurry storage tank (71), and the output end of the third motor (72) extends into the slurry storage tank (71). The second stirring assembly (73) is located inside the slurry storage tank (71), and the top of the second stirring assembly (73) is fixedly connected to the output end of the third motor (72). The third motor (72) is electrically connected to the controller (50).
8. A cement slurry batching and mixing device according to claim 6, characterized in that, The slurry storage tank device (70) also includes a second weight sensor (74), which is disposed between the trolley (10) and the slurry storage tank (71).
9. A cement slurry batching and mixing device according to claim 6, characterized in that, The slurry storage tank device (70) also includes an electromagnetic valve (75), which is installed on the connecting pipeline between the slurry mixing tank (61) and the slurry storage tank (71).
10. A cement slurry batching and mixing device according to claim 1, characterized in that, The grouting machine (80) is equipped with a pressure gauge, a density gauge and a flow meter.