Mixing and dispensing apparatus for slurry and grouting system

Abstract

The utility model discloses a kind of preparation device and grouting system of mixed slurry, it is related to grouting equipment technical field, and wherein, the preparation device of mixed slurry includes preparation subassembly, feed assembly and mixing subassembly;Mixing subassembly includes first preparation tank and second preparation tank, cement is stored in second preparation tank;Feed assembly includes water glass stock solution feed structure and water feed structure, water glass stock solution feed structure includes first storage tank, first feed pipe and first pumping part, and first storage tank is used to store water glass stock solution;Water feed structure includes second storage tank, second feed pipe and second pumping part, and second storage tank is used to store water;Mixing subassembly is communicated with first preparation tank and second preparation tank, and mixing subassembly is used to mix cement slurry and water glass slurry and form mixed slurry;The preparation device of mixed slurry provided by the utility model can more efficiently use cement slurry and water glass slurry to prepare mixed slurry, and the space occupied is smaller.

Description

Technical Field

[0001] This utility model relates to the field of grouting equipment technology, and in particular to a mixing device for grouting and a grouting system. Background Technology

[0002] In tunnel boring machine (TBM) construction, a mixed grout is often prepared using cement grout and water glass grout to reinforce the strata. However, preparing the mixed grout requires a large space to accommodate equipment and raw materials, resulting in a significant space occupation; moreover, the complex preparation process leads to low efficiency in preparing the mixed grout. Utility Model Content

[0003] The main purpose of this invention is to provide a mixing device and grouting system for mixed slurry, which aims to solve the technical problems that the mixing of cement slurry and water glass slurry requires a large space and has low mixing efficiency.

[0004] To achieve the above objectives, the present invention provides a mixing slurry preparation device, which includes:

[0005] A preparation component, comprising a first preparation tank and a second preparation tank, wherein the second preparation tank stores cement;

[0006] The feeding assembly includes a water glass raw material feeding structure and a water feeding structure. The water glass raw material feeding structure includes a first storage tank, a first feeding pipe, and a first pumping component. The first storage tank is used to store water glass raw material. The two ends of the first feeding pipe are respectively connected to a first preparation tank and the first storage tank. The first pumping component is used to pump the water glass raw material in the first storage tank into the first preparation tank. The water feeding structure includes a second storage tank, a second feeding pipe, and a second pumping component. The second storage tank is used to store water. One end of the second feeding pipe is connected to the second storage tank, and the other end of the feeding pipe is connected to the first preparation tank and the second preparation tank. The second pumping component is used to pump the water in the second storage tank into the first preparation tank and the second preparation tank, so that the water mixes with the water glass raw material pumped into the first preparation tank to form a water glass slurry, and the water mixes with the cement in the second preparation tank to form a cement slurry.

[0007] A mixing component, which is connected to the first preparation tank and the second preparation tank, is used to mix the cement slurry and the water glass slurry to form the mixed slurry.

[0008] In one embodiment, the mixing assembly includes a mixer and two feeding structures. One end of each feeding structure is connected to the mixer, and the other end of each feeding structure is connected to the first preparation tank and the second preparation tank, respectively. The two feeding structures are used to feed the water glass slurry and the cement slurry into the mixer, respectively.

[0009] In one embodiment, the feeding structure includes a third pumping component and two feeding pipes. One end of each of the two feeding pipes is connected to the mixer, and the other end of each of the two feeding pipes is connected to the first preparation tank and the second preparation tank, respectively. The two third pumping components are used to feed the water glass slurry and the cement slurry into the mixer through the two feeding pipes.

[0010] In one embodiment, the first pumping component, the second pumping component, and the third pumping component are all screw pumps.

[0011] In one embodiment, the feeding structure further includes a first flow sensor disposed on the feeding pipe.

[0012] In one embodiment, pressure sensors are provided in the first feed pipe, the second feed pipe, and each of the feed pipes.

[0013] In one embodiment, both the first feed pipe and the second feed pipe are equipped with a second flow sensor.

[0014] In one embodiment, both the first feed pipe and the second feed pipe are equipped with valves.

[0015] In one embodiment, the bottom walls of the first preparation tank, the second preparation tank, and the first storage tank are all conical bottom walls that gradually taper downwards.

[0016] This utility model also proposes a grouting system for mixed slurry, wherein the grouting system utilizes the aforementioned mixed slurry preparation device.

[0017] The technical solution of this utility model involves pre-placing cement in a second mixing tank, injecting water glass concentrate into a first storage tank, and injecting water into a second storage tank. When it is necessary to prepare the mixed slurry, a first pump operates, pumping the water glass concentrate from the first storage tank through a first supply pipe into the first mixing tank; simultaneously, a second pump is activated, pumping water into both the first and second mixing tanks. In the first mixing tank, water and water glass concentrate are thoroughly mixed to form water glass slurry; in the second mixing tank, water and cement are thoroughly mixed to form cement slurry. Subsequently, the mixing component is activated, extracting and mixing the water glass slurry from the first and cement slurry from the second mixing tank to obtain the final mixed slurry, thus completing the preparation of the mixed slurry. The mixing device provided by this utility model integrates the storage and preparation processes of each raw material into a relatively compact mixing component, supply component, and mixing component. It eliminates the need for a large number of equipment and raw materials occupying a large space, effectively reducing the space required for the site and making it more suitable for shield tunneling construction sites with limited space. Furthermore, the preparation device provided by this utility model employs an independent feeding system to supply raw materials to two preparation tanks simultaneously, preparing water glass slurry and cement slurry at the same time, eliminating the traditional cumbersome mixing steps and manual operation. Under the action of the second pumping component, water can be pumped into the two preparation tanks simultaneously to complete the mixing, greatly shortening the preparation time. Subsequently, the mixing component quickly mixes the two slurries evenly, improving the preparation efficiency of the mixed slurry. Attached Figure Description

[0018] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the module structure of an embodiment of the mixing slurry preparation device provided by this utility model;

[0020] Figure 2 A top view of an embodiment of the mixing slurry preparation device provided by this utility model.

[0021] Explanation of icon numbers:

[0022] 100. Preparation device; 10. Preparation component; 11. First preparation tank; 12. Second preparation tank; 20. Feeding component; 21. Water glass concentrate feeding structure; 211. First storage tank; 212. First feeding pipe; 213. First pumping component; 22. Water supply structure; 221. Second storage tank; 222. Second feeding pipe; 223. Second pumping component; 23. Second flow sensor; 24. Valve; 30. Mixing component; 31. Mixer; 32. Feeding structure; 321. Third pumping component; 322. Feeding pipe; 323. First flow sensor; 40. Pressure sensor.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] 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 scope of protection of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] This utility model proposes a mixing slurry preparation device 100.

[0028] Please see Figures 1 to 2In one embodiment of this utility model, the mixing slurry preparation device 100 includes a preparation component 10, a feeding component 20, and a mixing component 30; wherein, the preparation component 10 includes a first preparation tank 11 and a second preparation tank 12, the second preparation tank 12 storing cement; the feeding component 20 includes a water glass raw material feeding structure 21 and a water feeding structure 22, the water glass raw material feeding structure 21 includes a first storage tank 211, a first feeding pipe 212, and a first pumping component 213, the first storage tank 211 is used to store water glass raw material, the two ends of the first feeding pipe 212 are respectively connected to the first preparation tank 11 and the first storage tank 211, and the first pumping component 213 is used to pump the water glass raw material in the first storage tank 211 into the first preparation tank 11; water... The feeding structure 22 includes a second storage tank 221, a second feeding pipe 222, and a second pumping component 223. The second storage tank 221 is used to store water. One end of the second feeding pipe 222 is connected to the second storage tank 221, and the other end of the feeding pipe is connected to the first preparation tank 11 and the second preparation tank 12. The second pumping component 223 is used to pump the water in the second storage tank 221 into the first preparation tank 11 and the second preparation tank 12 respectively, so that the water is mixed with the water glass stock solution pumped into the first preparation tank 11 to form water glass slurry, and the water is mixed with the cement in the second preparation tank 12 to form cement slurry. The mixing component 30 is connected to the first preparation tank 11 and the second preparation tank 12. The mixing component 30 is used to mix the cement slurry and the water glass slurry to form a mixed slurry.

[0029] The technical solution of this utility model involves pre-placing cement in a second mixing tank 12, injecting water glass concentrate into a first storage tank 211, and injecting water into a second storage tank 221. When a mixed slurry needs to be prepared, a first pump 213 operates, pumping the water glass concentrate from the first storage tank 211 through a first supply pipe 212 into the first mixing tank 11; simultaneously, a second pump 223 is activated, pumping water into both the first and second mixing tanks 11 and 12. In the first mixing tank 11, water and water glass concentrate are thoroughly mixed to form a water glass slurry; in the second mixing tank 12, water and cement are thoroughly mixed to form a cement slurry. Subsequently, a mixing assembly 30 is activated, extracting and mixing the water glass slurry from the first mixing tank 11 and the cement slurry from the second mixing tank 12 to obtain the final mixed slurry, thus completing the preparation of the mixed slurry. The preparation device 100 provided by this utility model integrates the storage and preparation processes of various raw materials into a relatively compact preparation component 10, feeding component 20, and mixing component 30. This eliminates the need for numerous equipment and raw materials occupying a large space, effectively reducing site space requirements and making it more suitable for tunnel boring machine (TBM) construction sites with limited space. Furthermore, the preparation device 100 uses an independent feeding system to supply raw materials to two preparation tanks simultaneously, preparing water glass slurry and cement slurry at the same time, eliminating the traditional cumbersome mixing steps and manual operations. Under the action of the second pumping component 223, water can be pumped into both preparation tanks simultaneously to complete the mixing, greatly shortening the preparation time. Subsequently, the mixing component 30 quickly and evenly mixes the two slurries, improving the preparation efficiency of the mixed slurry.

[0030] In one embodiment of the present invention, the mixing component 30 includes a mixer 31 and two feeding structures 32. One end of each of the two feeding structures 32 is connected to the mixer 31, and the other end of each of the two feeding structures 32 is connected to the first preparation tank 11 and the second preparation tank 12, respectively. The two feeding structures 32 are used to feed water glass slurry and cement slurry into the mixer 31, respectively.

[0031] Specifically, after the water glass slurry in the first preparation tank 11 and the cement slurry in the second preparation tank 12 are prepared, the two feeding structures 32 are activated to pump the water glass slurry and cement slurry into the mixer 31 through their respective conveying pipes. The mixer 31 then rapidly and uniformly mixes the water glass slurry and cement slurry to form a mixed slurry. The mixing process of the water glass slurry and cement slurry is concentrated in the mixer 31, allowing for precise control of the mixing ratio and mixing time of the two slurries, ensuring the uniformity and stability of the mixed slurry's quality. Simultaneously, by setting up independent feeding structures 32, the water glass slurry and cement slurry can be conveyed separately, avoiding mutual interference and cross-contamination during the conveying process, thus improving the reliability and operating efficiency of the preparation device 100.

[0032] In one embodiment of the present invention, the feeding structure 32 includes a third pumping component 321 and a feeding pipe 322. One end of each of the two feeding pipes 322 is connected to the mixer 31, and the other end of each of the two feeding pipes 322 is connected to the first preparation tank 11 and the second preparation tank 12, respectively. The two third pumping components 321 are used to feed water glass slurry and cement slurry into the mixer 31 through the two feeding pipes 322, respectively.

[0033] Furthermore, in the mixing slurry preparation device 100, each feeding structure 32 specifically consists of a third pump 321 and a feeding pipe 322. For the first preparation tank 11, the third pump 321 is mounted on the feeding pipe 322 connected to it. One end of the feeding pipe 322 extends from the side of the tank body of the first preparation tank 11 and enters near the bottom of the tank, while the other end extends to the mixer 31 and enters the feed inlet of the mixer 31. When the water glass slurry in the first preparation tank 11 is prepared, the third pump 321 is activated, and the water glass slurry is stably transported to the mixer 31 along the feeding pipe 322 under the action of the third pump 321. Similarly, the second preparation tank 12 is also connected to the same structure. The third pump 321 is also mounted on the corresponding feeding pipe 322, one end of which enters the bottom of the second preparation tank 12, and the other end connects to the feed inlet of the mixer 31. Once the cement slurry in the second mixing tank 12 is ready, the corresponding third pump 321 is activated, and the cement slurry is transported to the mixer 31. The two third pumps 321 work together, using appropriate operating frequencies and power, to simultaneously transport the two slurries in a certain proportion into the mixer 31 for mixing. By setting up an independent feeding structure 32 consisting of the third pump 321 and the feeding pipe 322, the water glass slurry and cement slurry can be quickly and accurately transported to the mixer 31 without manual transfer, greatly shortening the preparation time of the mixed slurry and improving the overall mixing efficiency of the mixing device 100. Furthermore, each third pump 321 can independently control the flow rate and speed of the corresponding cement slurry and water glass slurry according to set parameters, thereby precisely controlling the proportion of water glass slurry and cement slurry entering the mixer 31, thus more accurately completing the mixing of the slurry.

[0034] In one embodiment of this utility model, the first pumping component 213, the second pumping component 223, and the third pumping component 321 are all screw pumps.

[0035] Specifically, screw pumps have excellent performance in conveying high-viscosity fluids. In the preparation of mixed slurries, especially cement slurries, which have high viscosity, using a screw pump as the first pumping component 213 and the second pumping component 223 can easily overcome the viscosity of the slurry, achieve efficient conveying, ensure timely supply of the slurry, and improve the efficiency of mixed slurry preparation.

[0036] In one embodiment of the present invention, the feeding structure 32 further includes a first flow sensor 323, which is disposed on the feeding pipe 322.

[0037] Specifically, the first flow sensor 323 inside the feed pipe 322 can monitor the flow rates of water glass slurry and cement slurry in real time, and adjust the operating parameters of the second pumping component 223 in real time according to the water glass slurry and cement slurry, thereby ensuring that the two slurries can be mixed in a precise ratio.

[0038] Furthermore, the mixing device 100 for preparing the mixed slurry also includes a controller, which can be a PLC as used in the prior art. The controller is communicatively connected to the first flow sensor 323, the first pumping component 213, and the second pumping component 223. The controller can control the operating parameters of the two second pumping components 223 in real time according to the delivery flow rates of the water glass slurry and the cement slurry, thereby completing the real-time automatic control of the ratio of water glass slurry and cement slurry, thus ensuring that the two slurries can be mixed in a precise ratio.

[0039] Furthermore, the mixing slurry preparation device 100 also includes a touch screen, which is communicatively connected to the controller.

[0040] In one embodiment of this utility model, pressure sensors 40 are provided in the first feeding pipe 212, the second feeding pipe 222 and each feeding pipe 322.

[0041] Specifically, the pressure sensor 40 can monitor the pressure in the first feed pipe 212, the second feed pipe 222 and each feed pipe 322 in real time. When the pressure exceeds the preset value, the first feed pipe 212 and the second feed pipe 222 need to be cleaned to prevent the first feed pipe 212, the second feed pipe 222 and each feed pipe 322 from becoming blocked.

[0042] Furthermore, the mixing slurry preparation device 100 also includes a cleaning structure. When it is necessary to clean the first feed pipe 212, the second feed pipe 222 and each feed pipe 322, the cleaning structure can be activated by the controller to clean the first feed pipe 212, the second feed pipe 222 and each feed pipe 322.

[0043] In one embodiment of this utility model, both the first feed pipe 212 and the second feed pipe 222 are provided with a second flow sensor 23.

[0044] Specifically, the second flow sensor 23 installed in the first feed pipe 212 and the second feed pipe 222 can monitor the flow rate of water glass concentrate and water in real time, ensuring that water glass concentrate and water, as well as cement and water, can be mixed in a precise ratio to form water glass slurry and cement slurry that meet the requirements, thereby ensuring the quality and performance stability of the final mixed slurry.

[0045] In one embodiment of this utility model, valves 24 are provided on both the first feed pipe 212 and the second feed pipe 222.

[0046] Specifically, valves 24 are installed in the first supply pipe 212 and the second supply pipe 222 to flexibly control the opening or closing of the first supply pipe 212 and the second supply pipe 222. When it is necessary to prepare water glass slurry and cement slurry, the control valves 24 open the first supply pipe 212 and the second supply pipe 222, so that the water glass concentrate can enter the first preparation tank 11 through the first supply pipe 212, and water can enter the first preparation tank 11 and the second preparation tank 12 through the second supply pipe 222 respectively, to complete the preparation of water glass slurry and cement slurry. When it is not necessary to prepare water glass slurry and cement slurry, the control valve 24 interrupts the first supply pipe 212 and the second supply pipe 222, which can prevent the water glass raw material from entering the first preparation tank 11 and prevent water from entering the first preparation tank 11 and the second preparation tank 12, thus preventing contamination of the prepared water glass slurry and cement slurry, ensuring the stability of the properties of water glass slurry and cement slurry and making them more reliable.

[0047] In one embodiment of the present invention, the bottom walls of the first preparation tank 11, the second preparation tank 12 and the first storage tank 211 are all conical bottom walls that gradually taper downwards.

[0048] Specifically, the bottom walls of the first preparation tank 11, the second preparation tank 12, and the first storage tank 211 are conical, which can prevent water glass slurry, cement slurry, and water glass concentrate from settling and accumulating on the bottom walls, and facilitate subsequent cleaning of the first preparation tank 11, the second preparation tank 12, and the first storage tank 211.

[0049] This utility model also proposes a grouting system for mixed slurry, which uses a mixed slurry preparation device 100. The specific structure of the mixed slurry preparation device 100 is as described in the above embodiments. Since this mixed slurry grouting system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0050] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the protection scope of the present utility model.

Claims

1. A device for preparing a mixed slurry, characterized in that, The apparatus for preparing the mixed slurry includes: A preparation component, comprising a first preparation tank and a second preparation tank, wherein the second preparation tank stores cement; The feeding assembly includes a water glass raw material feeding structure and a water feeding structure. The water glass raw material feeding structure includes a first storage tank, a first feeding pipe, and a first pumping component. The first storage tank is used to store water glass raw material. The two ends of the first feeding pipe are respectively connected to a first preparation tank and the first storage tank. The first pumping component is used to pump the water glass raw material in the first storage tank into the first preparation tank. The water feeding structure includes a second storage tank, a second feeding pipe, and a second pumping component. The second storage tank is used to store water. One end of the second feeding pipe is connected to the second storage tank, and the other end of the feeding pipe is connected to the first preparation tank and the second preparation tank. The second pumping component is used to pump the water in the second storage tank into the first preparation tank and the second preparation tank, so that the water mixes with the water glass raw material pumped into the first preparation tank to form a water glass slurry, and the water mixes with the cement in the second preparation tank to form a cement slurry. A mixing component, which is connected to the first preparation tank and the second preparation tank, is used to mix the cement slurry and the water glass slurry to form the mixed slurry.

2. The apparatus for preparing the mixed slurry as described in claim 1, characterized in that, The mixing assembly includes a mixer and two feeding structures. One end of each feeding structure is connected to the mixer, and the other end of each feeding structure is connected to the first preparation tank and the second preparation tank, respectively. The two feeding structures are used to feed the water glass slurry and the cement slurry into the mixer.

3. The apparatus for preparing the mixed slurry as described in claim 2, characterized in that, The feeding structure includes a third pumping component and two feeding pipes. One end of each of the two feeding pipes is connected to the mixer, and the other end of each of the two feeding pipes is connected to the first preparation tank and the second preparation tank, respectively. The two third pumping components are used to feed the water glass slurry and the cement slurry into the mixer through the two feeding pipes.

4. The apparatus for preparing the mixed slurry as described in claim 3, characterized in that, The first pumping component, the second pumping component, and the third pumping component are all screw pumps.

5. The apparatus for preparing the mixed slurry as described in claim 3, characterized in that, The feeding structure also includes a first flow sensor, which is disposed in the feeding pipe.

6. The apparatus for preparing the mixed slurry as described in claim 3, characterized in that, Pressure sensors are installed in the first feed pipe, the second feed pipe, and each of the feed pipes.

7. The apparatus for preparing the mixed slurry as described in any one of claims 1 to 6, characterized in that, Both the first and second feed pipes are equipped with a second flow sensor.

8. The apparatus for preparing the mixed slurry as described in claim 7, characterized in that, Both the first and second feed pipes are equipped with valves.

9. The apparatus for preparing the mixed slurry as described in any one of claims 1 to 6, characterized in that, The bottom walls of the first preparation tank, the second preparation tank, and the first storage tank are all conical bottom walls that gradually taper downwards.

10. A grouting system for mixed slurry, characterized in that, The grouting system employs a mixing device for preparing the mixed grout as described in any one of claims 1 to 9.

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