Preparation method of slurry

Abstract

The invention relates to a preparation method of slurry, which comprises the following steps: providing stirring equipment and a stirring barrel, forming a stirring space in the stirring barrel, connecting the side part of the stirring barrel with a measuring tube communicated with the stirring space, forming scale marks on the measuring tube, and controlling and connecting the stirring equipment with a stirring rod, the stirring equipment is mounted on the stirring barrel, and the stirring rod extends into the stirring space; adding water into the stirring barrel until the water level reaches the preset scale mark position; the stirring equipment is started, materials to be stirred are added into the stirring space until slurry is stirred uniformly, the structure is simple, and use is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of geotechnical engineering, in particular to a method for preparing slurry. Background Art

[0002] Grouting refers to injecting slurry into cracks or pores in rock foundations by appropriate methods to increase the density of the foundation soil. After the slurry solidifies, it improves the strength of the soil and the stability of the foundation, while blocking the seepage channels and reducing the permeability of the soil.

[0003] In grouting construction, slurry is the main substance that plays a role in consolidation and filling, and is the key to improving the physical and hydraulic properties of foundation soil. Therefore, the accuracy of slurry on-site preparation and measurement is the top priority of grouting control. At present, slurry ratio control mainly relies on performance testing after material mixing, and process control relies on batch metering and mixing, and then observing the expansion degree and volume change of the mixed slurry. Therefore, continuous construction operations cannot be achieved, which increases the material preparation time and delays the construction progress. In addition, batch feeding requires additional labor, which also increases the process supervision cost of slurry preparation, resulting in a waste of time, manpower, material resources and costs. Summary of the invention

[0004] The object of the present invention is to overcome the defects of the prior art and provide a method for preparing slurry. A connecting pipe is set on the side of a mixing barrel to observe the total amount of water injected. After the mixing is completed, the height of the scale line reached by the slurry in the connecting pipe can be observed, thereby facilitating the tester to calculate the volume of the slurry in the mixing barrel.

[0005] The technical solution to achieve the above object is a method for preparing a slurry, comprising the following steps:

[0006] A stirring device and a stirring barrel are provided, wherein a stirring space is formed in the stirring barrel, a measuring tube connected to the stirring space is connected to the side of the stirring barrel, and a scale line is formed on the measuring tube, the stirring device is controlled and connected to a stirring rod, the stirring device is installed on the stirring barrel, and the stirring rod extends into the stirring space;

[0007] Add water into the mixing barrel until the water level reaches the predetermined scale line position;

[0008] The stirring device is started, and the material to be stirred is added into the stirring space until the slurry is stirred evenly.

[0009] Furthermore, before injecting the material to be mixed into the mixing barrel, a storage tank is provided, and a feeding valve is provided on the discharge barrel. The feeding valve is aligned with the mixing space, and the feeding valve is opened to feed the material to be mixed into the mixing space.

[0010] Furthermore, a temporary storage bin is provided at the bottom of the feeding valve, a discharge valve is provided at the bottom of the temporary storage bin, and the discharge valve is arranged to be aligned with the stirring space;

[0011] When the material to be mixed is poured into the mixing barrel, the feeding valve is opened to allow the material in the storage bin to be poured into the temporary storage bin. After the temporary storage bin is full, the feeding valve is closed and the discharging valve is opened to feed the material to be mixed into the mixing space.

[0012] Furthermore, the temporary storage bin is formed by splicing a plurality of bin body units, and two adjacent bin body units are fixedly connected by bolts.

[0013] Furthermore, a weight sensor is provided in the discharge valve.

[0014] Furthermore, a buffer plate is provided between the temporary storage bin and the feeding valve, and a plurality of holes communicating with the feeding valve and the temporary storage bin are formed on the buffer plate.

[0015] Furthermore, a discharge hole connected to the stirring space is provided on the side of the stirring barrel, and a slurry storage valve is provided on the discharge hole to provide a slurry pool. The slurry storage valve and the slurry pool are connected by a connecting pipe. After the slurry is stirred evenly, the slurry storage valve is opened and the stirred slurry is injected into the slurry pool through the connecting pipe.

[0016] Furthermore, a plurality of rollers are arranged at the bottom of the mixing barrel.

[0017] Furthermore, a water inlet device is provided, through which water is injected into the stirring space.

[0018] Furthermore, a cover plate is provided on the top of the mixing barrel, and a mounting hole is formed on the cover plate corresponding to the mixing device. When the mixing device is installed on the mixing barrel, the mixing rod passes through the mounting hole to extend into the mixing space.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] By setting a connecting pipe on the side of the mixing barrel, observing the height of the scale line reached by the slurry in the connecting pipe, and measuring the end of the material in the temporary storage bin by a weight sensor, it is convenient for the tester to mix and calculate the slurry in the mixing barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure is an overall structural diagram of a method for preparing a slurry.

[0022] Figure 2The present invention is a schematic diagram of the structure of a feeding valve and a temporary storage bin in a method for preparing slurry.

[0023] Figure 3 The present invention is an overall structural diagram of a stirring barrel in a method for preparing a slurry.

[0024] Legend: 1. Mixing barrel; 11. Roller; 12. Discharge hole; 13. Connecting pipe; 2. Mixing equipment; 3. Water inlet equipment; 4. Storage tank; 41. Feeding valve; 42. Temporary storage bin; 43. Discharge valve; 44. Weight sensor; 5. Slurry storage valve; 6. Mixing tool; 7. Slurry pool; 8. Grouting equipment. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] See also Figures 1 to 3 A method for preparing a slurry comprises the following steps: providing a stirring device 2 and a stirring barrel 1, wherein a stirring space is formed in the stirring barrel 1, a measuring tube connected to the stirring space is connected to the side of the stirring barrel 1, and a scale line is formed on the measuring tube, the stirring device 2 is controlled and connected to a stirring rod, the stirring device 2 is installed on the stirring barrel 1, and the stirring rod extends into the stirring space; water is added into the stirring barrel 1 until the water level reaches the predetermined scale line position; the stirring device 2 is started, and the material to be stirred is added into the stirring space until the slurry is stirred evenly.

[0027] In the present invention, a preferred implementation is: installing a mixing barrel 1 and a mixing device 2 to store water in the mixing barrel 1, and accurately controlling the water storage volume by reading the scale line reading of the connecting pipe 13 until the volume determined by the plan is reached; turning on the mixing device 2, adding the material to be mixed into the mixing barrel 1, and fully stirring the mixture until the slurry is uniform, free of impurities and precipitation, turning off the mixing device 2, reading the scale line reading of the connecting pipe 13, and checking whether the slurry volume determined by the plan is reached. If not, repeat the above steps until the plan requirements are met; if so, pour out the stirred slurry and clean the mixing barrel 1.

[0028] Preferably, the stirring device 2 is a conventional stirring device 2 available on the market.

[0029] Furthermore, before injecting the material to be mixed into the mixing barrel 1, a storage tank 4 is provided, and a feeding valve 41 is provided on the discharge barrel. The feeding valve 41 is aligned with the mixing space, and the feeding valve 41 is opened to feed the material to be mixed into the mixing space. Preferably, the storage tank 4 has a large and airtight tank body, which can meet the material storage requirements. When in use, mixed materials such as cement, fly ash, mineral powder, etc. can be prepared in advance in the storage tank 4. When in use, only the feeding valve 41 needs to be opened to add materials into the mixing barrel 1.

[0030] Furthermore, a temporary storage bin 42 is provided at the bottom of the feeding valve 41, and a discharge valve 43 is provided at the bottom of the temporary storage bin 42, and the discharge valve 43 is arranged to be aligned with the stirring space; when the material to be stirred is injected into the stirring barrel 1, the feeding valve 41 is opened to allow the material in the storage bin to be poured into the temporary storage bin 42, and after the temporary storage bin 42 is filled, the feeding valve 41 is closed, and the discharge valve 43 is opened to inject the material to be stirred into the stirring space. When the volume or weight of the discharged material is controlled by the storage bin, the volume or weight of the discharged material can be controlled.

[0031] Furthermore, the temporary storage bin 42 is composed of a plurality of bin body units, and two adjacent bin body units are fixedly connected by bolts. By increasing or decreasing bin body units, the capacity of the temporary storage bin 42 can be expanded or reduced, thereby controlling the volume or weight of the one-time discharge.

[0032] Furthermore, a weight sensor 44 is provided in the discharge valve 43. The weight sensor 44 is used to weigh the weight of the material in the temporary storage bin 42.

[0033] Furthermore, a buffer plate is provided between the temporary storage bin 42 and the feeding valve 41, and a plurality of holes are formed on the buffer plate to connect the feeding valve 41 and the temporary storage bin 42. Preferably, the buffer plate has a certain rigidity, and the holes can slow down the speed of the material in the tank body entering the temporary storage bin 42 during discharge, so that the volume or weight of the discharged material can be controlled.

[0034] Furthermore, the side of the mixing barrel 1 is provided with a discharge hole 12 connected to the mixing space, and the discharge hole 12 is provided with a slurry storage valve 5, providing a slurry pool 7, and the slurry storage valve 5 and the slurry pool 7 are connected by a connecting pipe. After the slurry is evenly stirred, the slurry storage valve 5 is opened, and the stirred slurry is injected into the slurry pool 7 through the connecting pipe. Preferably, a stirring tool 6 is provided in the slurry pool 7, and the stirring tool 6 is a conventional stirring tool 6 on the market. By starting the stirring tool 6 to prevent the slurry in the slurry pool from solidifying, a grouting device 8 is provided around the slurry pool, and the slurry stirred in the slurry pool is extracted by the grouting device 8, and grouting is performed on the location to be constructed.

[0035] Furthermore, a plurality of rollers 11 are provided at the bottom of the mixing barrel 1. The rollers 11 are provided at the bottom of the mixing barrel 1 to facilitate construction workers to move the mixing barrel 1.

[0036] Furthermore, a water inlet device 3 is provided, through which water is injected into the stirring space.

[0037] Furthermore, a cover plate is provided on the top of the mixing barrel 1 , and a mounting hole is formed on the cover plate corresponding to the mixing device 2 . When the mixing device 2 is installed on the mixing barrel 1 , the mixing rod passes through the mounting hole to extend into the mixing space.

[0038] The following is an explanation of the use process of a method for preparing a slurry according to the present invention.

[0039] A slurry pool is set up near the location to be grouting, and a storage tank 4, a mixing barrel 1 and a mixing device 2 are installed;

[0040] Connect the water inlet device 3 to the mixing barrel 1, open the water inlet valve of the water inlet device 3, and store water in the mixing barrel 1. The water storage volume is accurately controlled by reading the scale reading of the connecting pipe 13 until the volume determined by the plan is reached, and the water inlet valve is closed; open the mixing device 2; open the feeding valve 41, and close the discharging valve 43, so that the cement material enters the temporary storage bin 42 through the holes of the buffer plate. When the weight of the material in the temporary storage bin 42 increases to no more than a certain threshold, close the feeding valve 41, read the reading of the weight sensor 44 on the discharging valve 43, and obtain the accumulated weight, open the discharging valve 43, and allow the material to be put into the mixing barrel 1; repeat the process of putting cement material into the temporary storage bin 42, weighing and The process of pouring cement material into the mixing barrel 1 is continued until the cumulative weight of the input materials reaches the weight determined by the plan; the amount of material input can also be controlled by the volume of the temporary storage bin 42, and the volume of the input materials is equal to the volume of the temporary storage bin 42 multiplied by the number of feeding times; the mixture is fully stirred until the slurry is uniform, free of impurities and precipitation, and the stirring device 2 is closed; the reading of the scale line of the connecting pipe 13 is read to verify whether the slurry volume determined by the plan is reached. If not, the previous feeding and stirring steps are repeated until the plan requirements are met; the slurry storage valve 5 is opened to store the prepared slurry into the slurry pool, and the mixing barrel 1 is cleaned; the stirring tool 6 is turned on, and grouting is performed toward the position to be grouting through the grouting equipment 8.

[0041] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A method for preparing a slurry, characterized in that: The steps include: A stirring device and a stirring barrel are provided, wherein a stirring space is formed in the stirring barrel, a measuring tube connected to the stirring space is connected to the side of the stirring barrel, and a scale line is formed on the measuring tube, the stirring device is controlled and connected to a stirring rod, the stirring device is installed on the stirring barrel, and the stirring rod extends into the stirring space; Add water into the mixing barrel until the water level reaches the predetermined scale line position; The stirring device is started, and the material to be stirred is added into the stirring space until the slurry is stirred evenly.

2. The method for preparing a slurry according to claim 1, characterized in that: Before injecting the material to be mixed into the mixing barrel, a storage tank is provided, and a feeding valve is arranged on the discharge barrel. The feeding valve is aligned with the mixing space, and the feeding valve is opened to feed the material to be mixed into the mixing space.

3. The method for preparing a slurry according to claim 2, characterized in that: A temporary storage bin is provided at the bottom of the feeding valve, a discharge valve is provided at the bottom of the temporary storage bin, and the discharge valve is arranged to align with the stirring space; When the material to be mixed is poured into the mixing barrel, the feeding valve is opened to allow the material in the storage bin to be poured into the temporary storage bin. After the temporary storage bin is full, the feeding valve is closed and the discharging valve is opened to feed the material to be mixed into the mixing space.

4. The method for preparing a slurry according to claim 3, characterized in that: The temporary storage bin is formed by splicing a plurality of bin body units, and two adjacent bin body units are fixedly connected by bolts.

5. The method for preparing a slurry according to claim 3, characterized in that: A weight sensor is arranged inside the discharge valve.

6. The method for preparing a slurry according to claim 3, characterized in that: A buffer plate is arranged between the temporary storage bin and the feeding valve, and a plurality of holes communicating with the feeding valve and the temporary storage bin are formed on the buffer plate.

7. The method for preparing a slurry according to claim 1, characterized in that: A discharge hole connected to the stirring space is arranged on the side of the stirring barrel, and a slurry storage valve is arranged on the discharge hole to provide a slurry pool. The slurry storage valve and the slurry pool are connected by a connecting pipe. After the slurry is stirred evenly, the slurry storage valve is opened and the stirred slurry is injected into the slurry pool through the connecting pipe.

8. The method for preparing a slurry according to claim 1, characterized in that: A plurality of rollers are arranged at the bottom of the mixing barrel.

9. The method for preparing a slurry according to claim 1, characterized in that: A water inlet device is provided, through which water is injected into the stirring space.

10. The method for preparing a slurry according to claim 1, characterized in that: A cover plate is provided on the top of the stirring barrel, and a mounting hole is formed on the cover plate corresponding to the stirring device. When the stirring device is installed on the stirring barrel, the stirring rod passes through the mounting hole to extend into the stirring space.

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