A multi-stage filtration cement grouting system

By designing a multi-stage filtration cement grouting system, and utilizing a multi-stage screening mechanism and a vibrating motor, impurities and particles in the cement grout are effectively removed, ensuring grouting quality and improving the strength and durability of the engineering structure.

CN224348060UActive Publication Date: 2026-06-12TIANJIN ZEQI CEMENT COMPONENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN ZEQI CEMENT COMPONENT CO LTD
Filing Date
2025-05-08
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing cement grouting systems are unable to effectively remove impurities and particles from cement grout, resulting in unstable grouting quality and affecting the strength and durability of engineering structures.

Method used

A multi-stage filtration cement grouting system is adopted, including a mixing tank, a multi-stage screening mechanism and a vibrating motor. Through the cooperation of multi-stage screens and damping telescopic rods, multi-stage vibration screening of cement slurry is achieved to ensure the full removal of impurities and particles.

🎯Benefits of technology

This improved the grouting quality of the cement grout and avoided impacting the strength and durability of the engineering structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multistage filtration cement grouting system, including mixing tank, the discharge port at mixing tank bottom end installs multistage screening mechanism, the three supporting legs of annular installation have in mixing tank bottom end periphery, one supporting plate is commonly installed to three supporting leg lower parts, install the storage box on the supporting plate below multistage screening mechanism downside. Advantageous effect lies in: the utility model discloses a multistage screening mechanism that is installed between mixing tank bottom end and storage box by damping telescopic link, vibrating motor, spring no.
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Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a multi-stage filtration cement grouting system. Background Technology

[0002] Cement grouting technology is widely used in construction engineering, mainly for reinforcing foundations, filling gaps, and repairing concrete structures. As construction projects become more complex and sophisticated, the requirements for grouting quality are becoming increasingly stringent.

[0003] Traditional cement grouting systems typically employ single-stage filtration or simple screen filtration. For example, the patent disclosed in patent number CN201820533675.6, "A Grouting Device with a Continuous Filtration Structure," uses a single-stage filter to filter the mixed cement slurry. Although existing grouting devices can remove heavy impurities from the cement slurry, they are still difficult to effectively remove impurities and particles from the cement slurry, leading to unstable grouting quality and even affecting the strength and durability of the engineering structure. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a multi-stage filtration cement grouting system that can effectively remove impurities and particles from cement grout through multi-stage filtration, in light of the current state of the technology.

[0005] This utility model is achieved through the following technical solution: This utility model proposes a multi-stage filtration cement grouting system, including a mixing tank. A multi-stage screening mechanism is installed at the discharge port at the bottom of the mixing tank. Three support legs are installed in a ring around the bottom of the mixing tank. A support plate is installed at the lower part of the three support legs. A storage box is installed on the support plate below the multi-stage screening mechanism. A grouting pump is installed on the support plate on one side of the storage box. The multi-stage screening mechanism includes a damping telescopic rod, a vibration motor, a spring, a grading screen, a screen frame, and a mounting box. There are four damping telescopic rods, which are respectively installed between the four corners of the top of the mounting box and the bottom of the mixing tank. The spring is installed on the outside of the damping telescopic rod. The vibration motor is installed on both sides of the upper end of the mounting box. The grading screen is installed inside the screen frame. The screen frame is slidably installed in the mounting box. The grading screen is composed of three layers of screening mesh plates, and the mesh size of the three layers of screening mesh plates decreases from top to bottom.

[0006] Furthermore, the feed pipe of the mounting box extends into the discharge port of the mixing tank, and the discharge pipe of the mounting box extends into the feed pipe of the storage box.

[0007] Furthermore, each layer of the grading screen has a V-shaped structure, and the lower part of the mounting box also has a V-shaped structure.

[0008] Furthermore, the vibration motor is bolted to the mounting box, the telescopic part of the damping telescopic rod is bolted to the mounting box, and the fixed part of the damping telescopic rod is bolted to the mixing tank.

[0009] Furthermore, the damping telescopic rod passes through the first spring, and the two ends of the first spring are respectively welded to the mixing tank and the mounting box.

[0010] Furthermore, two limiting components are symmetrically installed between the outer side of the screen frame and the mounting box. The limiting components include a limiting hole plate, a limiting post, a pull plate, a second spring, and a guide plate. The limiting hole plate is installed on one side wall of the mounting box, the guide plate is located on one side of the limiting hole plate, the limiting post penetrates the limiting hole plate, the pull plate is welded to one end of the limiting post, the second spring is installed between the pull plate and the guide plate, and the limiting post penetrates the second spring.

[0011] Furthermore, the mixing tank is also equipped with a mixing mechanism, which includes a stirring motor and a mixing rack. The stirring motor is installed at the top center of the mixing tank, and the mixing rack is connected to the power output end of the stirring motor.

[0012] Furthermore, a feeding pipe is installed on one side of the top of the mixing tank, a feeding hopper is installed on the other side of the top of the mixing tank, and an operation panel is installed on one side of the mixing tank.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] This invention utilizes a multi-stage screening mechanism, consisting of a damping telescopic rod, a vibrating motor, a spring, a grading screen, a screen frame, and a mounting box, installed between the bottom of the mixing tank and the storage box. This mechanism enables multi-stage screening of the cement slurry through vibration during discharge after mixing, ensuring that impurities and particles in the cement slurry are fully removed before grouting. This effectively ensures the grouting quality of the cement slurry and avoids affecting the strength and durability of the engineering structure. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a multi-stage filtration cement grouting system according to the present invention;

[0016] Figure 2 This is a front sectional view of a multi-stage filtration cement grouting system according to the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the screen frame and multi-cell screen in a multi-stage filtration cement grouting system described in this utility model;

[0018] Figure 4 This utility model describes a multi-stage filtration cement grouting system. Figure 1 Enlarged view of the structure at point A in the middle.

[0019] The annotations in the attached figures are explained as follows:

[0020] 1. Feeding pipe; 2. Mixing tank; 3. Control panel; 4. Support leg; 5. Support plate; 6. Storage box; 7. Grouting pump; 8. Feeding hopper; 9. Mixing mechanism; 91. Agitator motor; 92. Mixing rack; 10. Multi-stage screening mechanism; 101. Damping telescopic rod; 102. Vibrating motor; 103. Spring 1; 104. Grading screen; 105. Screen frame; 106. Mounting box; 11. Limiting component; 111. Limiting hole plate; 112. Limiting column; 113. Pull plate; 114. Spring 2; 115. Guide plate. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] like Figures 1-3 As shown, a multi-stage filtration cement grouting system in this embodiment includes a mixing tank 2. A multi-stage screening mechanism 10 is installed at the discharge port at the bottom of the mixing tank 2. Three support legs 4 are installed in a ring around the bottom of the mixing tank 2. A support plate 5 is installed at the lower part of the three support legs 4. A storage box 6 is installed on the support plate 5 below the multi-stage screening mechanism 10. A grouting pump 7 is installed on the support plate 5 on one side of the storage box 6. The multi-stage screening mechanism 10 includes a damping telescopic rod 101, a vibrating motor 102, a spring 103, a grading screen 104, and a screen frame 104. 05 and mounting box 106, wherein there are four damping telescopic rods 101, which are respectively installed between the four corners of the top of the mounting box 106 and the bottom of the mixing tank 2. Spring 103 is installed on the outside of the damping telescopic rods 101. Vibration motor 102 is installed on both sides of the upper end of the mounting box 106. Grading screen 104 is installed inside the screen frame 105. The screen frame 105 is slidably installed in the mounting box 106. Grading screen 104 is composed of three layers of screening screen plates. The mesh size of the three layers of screening screen plates on grading screen 104 decreases from top to bottom.

[0023] This invention provides a multi-stage filtration cement grouting system that effectively removes impurities and particles from cement slurry through multi-stage filtration. This solves the problem that existing cement grouting systems typically use single-stage filtration or simple screen filtration, which is insufficient to effectively remove impurities and particles from the cement slurry, leading to unstable grouting quality and even affecting the strength and durability of the engineering structure. The overall approach to solving this problem is as follows: after the cement slurry is mixed in the mixing tank 2 and discharged, it first falls into the grading screen 104 through the feed pipe on the mounting box 106. Once in the grading screen 104, the cement slurry vibrates up and down at high frequency under the action of the vibrating motor 102, the damping telescopic rod 101, and the spring 103. This, combined with the action of the three layers of screening plates in the grading screen 104, effectively removes impurities and particles from the cement slurry, preventing any impact on the subsequent grouting quality.

[0024] like Figures 1-2 As shown, the feed pipe of the mounting box 106 extends into the discharge port of the mixing tank 2, and the discharge pipe of the mounting box 106 extends into the feed pipe of the storage box 6.

[0025] In one implementation, the feed pipe of the mounting box 106 will vibrate up and down at a high frequency relative to the discharge port of the mixing tank 2, and the discharge pipe of the mounting box 106 will vibrate up and down at a high frequency relative to the feed pipe on the storage box 6, thereby effectively ensuring the normal vibration of the mounting box 106 under the action of the vibration motor 102, the damping telescopic rod 101 and the spring 103.

[0026] like Figures 2-3 As shown, each layer of screening screen plate in the grading screen 104 has a V-shaped structure, and the lower part of the mounting box 106 also has a V-shaped structure.

[0027] As one implementation method, each layer of screening screen plate in the grading screen 104 is V-shaped, which can ensure that the grading screen 104 can fall smoothly when vibrating.

[0028] like Figures 1-2 As shown, the vibration motor 102 is bolted to the mounting box 106, the telescopic part of the damping telescopic rod 101 is bolted to the mounting box 106, and the fixed part of the damping telescopic rod 101 is bolted to the mixing tank 2.

[0029] As one implementation method, the damping telescopic rod 101 can limit the reciprocating vibration amplitude of the spring 103 in order to control the vertical vibration amplitude of the mounting box 106.

[0030] like Figures 1-2 As shown, the damping telescopic rod 101 passes through the spring 103, and the two ends of the spring 103 are welded to the mixing tank 2 and the mounting box 106 respectively.

[0031] In one implementation, spring 103 is the main component that enables the mounting box 106 to vibrate up and down.

[0032] like Figure 1 , Figure 3 and Figure 4 As shown, two limiting components 11 are symmetrically installed between the outer side of the screen frame 105 and the mounting box 106. The limiting components 11 include a limiting hole plate 111, a limiting post 112, a pull plate 113, a second spring 114, and a guide plate 115. The limiting hole plate 111 is installed on the outer side wall of the mounting box 106, the guide plate 115 is located on one side of the limiting hole plate 111, the limiting post 112 penetrates through the limiting hole plate 111, the pull plate 113 is welded to one end of the limiting post 112, and the second spring 114 is installed between the pull plate 113 and the guide plate 115, with the limiting post 112 penetrating through the second spring 114.

[0033] In one embodiment, the screen frame 105 is inserted into the mounting box 106, and the limiting post 112 is inserted into the limiting hole plate 111 under the action of the spring 114. This can ensure that the screen frame 105 is reliably limited in the mounting box 106 and prevent the grading screen 104 from sliding out of the mounting box 106 with the screen during vibrating screening.

[0034] like Figure 1 As shown, a mixing mechanism 9 is also installed on the mixing tank 2. The mixing mechanism 9 includes a stirring motor 91 and a mixing rack 92. The stirring motor 91 is installed at the top center of the mixing tank 2, and the mixing rack 92 is connected to the power output end of the stirring motor 91.

[0035] As one implementation method, the stirring motor 91 drives the mixing rack 92 to rotate, which can mix and stir the cement slurry raw materials in the mixing tank 2 to ensure convenient preparation of cement slurry.

[0036] like Figures 1-2 As shown, a feeding pipe 1 is installed on one side of the top of the mixing tank 2, a feeding hopper 8 is installed on the other side of the top of the mixing tank 2, and an operation panel 3 is installed on one side of the mixing tank 2.

[0037] As one implementation method, the feeding pipe 1 is mainly used to facilitate the addition of water for cement slurry processing to the mixing tank 2, the feeding hopper 8 is mainly used to facilitate the addition of raw materials for cement slurry processing to the mixing tank 2, and the operation panel 3 mainly controls the coordinated operation of the mixing motor 91, the grouting pump 7, and the vibration motor 102 by controlling the on and off of the control circuit.

[0038] The specific implementation process of this embodiment is as follows: In use, firstly, the water for cement slurry processing is added to the mixing tank 2 through the feeding pipe 1, and the raw materials for cement slurry processing are added to the mixing tank 2. Simultaneously, the stirring motor 91 is started. After the stirring motor 91 starts, it drives the mixing rack 92 to rotate, thereby achieving the mixing and preparation of cement slurry. After the cement slurry is mixed and prepared, the outlet at the bottom of the mixing tank 2 is opened to allow the cement slurry water to flow into the mounting box 106. Then, the vibration motor 102 is started. After the vibration motor 102 starts, under the action of the damping telescopic rod 101 and the spring 103, the mounting box 1... The installation box 106 vibrates up and down, and while vibrating, it uses a grading screen 104 to filter the cement slurry. The filtered cement slurry falls into the storage box 6, so that the grouting pump 7 can transport the cement slurry in the storage box 6 to the grouting part in the construction project to realize the grouting operation. Due to the design of the multi-stage screening mechanism 10, the cement slurry can be screened in a multi-stage manner by vibration when it is discharged after mixing. This ensures that impurities and particles in the cement slurry can be fully removed before grouting, effectively ensuring the grouting quality of the cement slurry and thus avoiding affecting the strength and durability of the engineering structure.

[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 multi-stage filtered cement grouting system, characterized in that: The system includes a mixing tank (2), a multi-stage screening mechanism (10) installed at the discharge port at the bottom of the mixing tank (2), three support legs (4) installed in a ring around the bottom of the mixing tank (2), a support plate (5) installed at the bottom of the three support legs (4), a storage box (6) installed on the support plate (5) below the multi-stage screening mechanism (10), and a grouting pump (7) installed on the support plate (5) on one side of the storage box (6). The multi-stage screening mechanism (10) includes a damping telescopic rod (101), a vibration motor (102), a spring (103), a grading screen (104), a screen frame (105), and a mounting box (106). There are four damping telescopic rods (101), which are respectively installed between the four corners of the top of the mounting box (106) and the bottom of the mixing tank (2). The spring (103) is installed on the outside of the damping telescopic rod (101). The vibration motor (102) is installed on both sides of the upper end of the mounting box (106). The grading screen (104) is installed inside the screen frame (105). The screen frame (105) is slidably installed inside the mounting box (106). The grading screen (104) is composed of three layers of screening screen plates. The mesh size of the three layers of screening screen plates on the grading screen (104) decreases from top to bottom.

2. The multi-stage filtration cement grouting system according to claim 1, characterized in that: The feed pipe of the mounting box (106) extends into the discharge port of the mixing tank (2), and the discharge pipe of the mounting box (106) extends into the feed pipe of the storage box (6).

3. The multi-stage filtration cement grouting system according to claim 2, characterized in that: Each layer of the grading screen (104) has a V-shaped structure, and the lower part of the mounting box (106) also has a V-shaped structure.

4. The multi-stage filtration cement grouting system according to claim 1, characterized in that: The vibration motor (102) is bolted to the mounting box (106), the telescopic part of the damping telescopic rod (101) is bolted to the mounting box (106), and the fixed part of the damping telescopic rod (101) is bolted to the mixing tank (2).

5. A multi-stage filtration cement grouting system according to claim 4, characterized in that: The damping telescopic rod (101) passes through the spring (103), and the two ends of the spring (103) are welded to the mixing tank (2) and the mounting box (106) respectively.

6. The multi-stage filtration cement grouting system according to claim 1, characterized in that: Two limiting components (11) are symmetrically installed between the outer side of the sieve frame (105) and the mounting box (106). The limiting components (11) include a limiting hole plate (111), a limiting post (112), a pull plate (113), a second spring (114), and a guide plate (115). The limiting hole plate (111) is installed on the outer side wall of the mounting box (106). The guide plate (115) is located on one side of the limiting hole plate (111). The limiting post (112) penetrates the limiting hole plate (111). The pull plate (113) is welded to one end of the limiting post (112). The second spring (114) is installed between the pull plate (113) and the guide plate (115), and the limiting post (112) penetrates the second spring (114).

7. The multi-stage filtration cement grouting system according to claim 1, characterized in that: The mixing tank (2) is also equipped with a mixing mechanism (9), which includes a stirring motor (91) and a mixing rack (92). The stirring motor (91) is installed at the top center of the mixing tank (2), and the mixing rack (92) is connected to the power output end of the stirring motor (91).

8. The multi-stage filtration cement grouting system according to claim 7, characterized in that: A feeding pipe (1) is installed on one side of the top of the mixing tank (2), a feeding hopper (8) is installed on the other side of the top of the mixing tank (2), and an operation panel (3) is installed on one side of the mixing tank (2).