CN213797373U

CN213797373U - Device for adjusting viscosity and fluidity of cement slurry

Info

Publication number: CN213797373U
Application number: CN202021994865.1U
Authority: CN
Inventors: 李凯; 姬贺飞; 刘光磊; 武思宇
Original assignee: Zhongyan Technology Co Ltd
Current assignee: Zhongyan Technology Co Ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-07-27
Anticipated expiration: 2030-09-14

Abstract

The utility model discloses a device of adjustment cement thick liquid viscosity and mobility. The device comprises a supporting arm, an upper-layer stirring barrel weighing device, a slurry conveying pipe, a slurry conveying pipeline electronic valve, a slurry conveying pipeline flowmeter, an upper-layer stirring barrel stirring blade, an upper-layer stirring barrel, a slurry supply pipe electronic valve, a slurry supply pipe flowmeter, an upper-layer mixing agent weighing device, an upper-layer mixing agent storage barrel, an upper-layer mixing agent distribution pipeline electronic valve, an upper-layer mixing agent distribution pipeline, a lower-layer mixing agent weighing device, a lower-layer mixing agent storage barrel, a lower-layer mixing agent distribution pipeline electronic valve, a lower-layer mixing agent distribution pipeline, a lower-layer stirring barrel stirring blade, a lower-layer stirring barrel and a slurry outlet pipe; the weighing device is fixed on the support arm, and upper mixture adds the device and is located upper agitator upper portion, and lower floor's mixture adds the device and is located lower agitator upper portion, and upper agitator is located lower agitator upper portion, and the delivery pipeline electronic valve separates the pipeline for a plurality of spaces.

Description

Device for adjusting viscosity and fluidity of cement slurry

Technical Field

The utility model belongs to curtain cementer field adopts the device can dispose the controllability cement thick liquid of different viscosities, different mobility in engineering scene fast in succession.

Background

At present, in grouting seepage-proofing engineering, aiming at working conditions of karst, large channel and high water flow, the flowing water cannot be quickly blocked by adopting cement grout only, and the effective utilization rate of the grout is low; grouting technicians develop various powdery admixtures according to engineering requirements, and the viscosity of the admixture can be quickly improved after the admixture is mixed and stirred with cement grout according to a specific proportion.

In the field construction process, the manual operation of technicians is needed for adding the mixing agent, and whether the quality of the added mixing agent is accurate is related to the experience of the technicians, so that the construction efficiency is low, the effective utilization rate of the slurry is low, and the engineering quality excessively depends on the experience of the technicians in the grouting process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at designing a through weighing the title and the device that the accurate control mixture of electronic valve added the quality, the mixture adds the device and contains upper strata, lower floor and adds the device, and the upper strata adds the device and accomplishes and join in marriage the thick liquid back, through supplying the mobility and the viscosity of thick liquid pipe flowmeter survey thick liquid velocity of flow and calculation thick liquid, contrast measured value and design value simultaneously and add the device through the lower floor and revise, further improve and join in marriage thick liquid precision.

The utility model adopts the following technical scheme:

a device for adjusting the viscosity and the fluidity of cement slurry comprises a support arm, an upper-layer stirring barrel weighing device, a slurry conveying pipe, a slurry conveying pipeline electronic valve, a slurry conveying pipeline flowmeter, an upper-layer stirring barrel stirring blade, an upper-layer stirring barrel, a slurry supply pipe electronic valve, a slurry supply pipe flowmeter, an upper-layer mixing agent weighing device, an upper-layer mixing agent storage barrel, an upper-layer mixing agent distribution pipeline electronic valve, an upper-layer mixing agent distribution pipeline, a lower-layer mixing agent weighing device, a lower-layer mixing agent storage barrel, a lower-layer mixing agent distribution pipeline electronic valve, a lower-layer mixing agent distribution pipeline, a lower-layer stirring barrel stirring blade, a lower-layer stirring barrel and a slurry outlet pipe; one end of the weighing device is connected to the supporting arm, and the other end of the weighing device is respectively connected to the upper-layer mixing agent adding device, the upper-layer stirring barrel and the lower-layer mixing agent adding device; the upper-layer mixing agent adding device is located on the upper portion of the upper-layer mixing drum, the lower-layer mixing agent adding device is located on the upper portion of the lower-layer mixing drum, and the upper-layer mixing drum is located on the upper portion of the lower-layer mixing drum.

The volume of the slurry conveyed in the upper-layer stirring barrel with a specific water-cement ratio can be measured by arranging the flowmeter on the slurry conveying pipeline, and the total mass of the slurry in the barrel can be measured by the weighing device; the mass can be obtained from the size of the slurry based on the density of the slurry, the mass value measured by the flow meter and the weighing scale is compared, if the error exceeds 5%, the average value of the two is taken, and the slurry configuration precision can be improved.

Further, a dry weight value of the cement can be obtained according to the slurry quality and the slurry water-cement ratio, the adding proportion of the mixing agent is determined according to the set values of the slurry viscosity and the fluidity and the indoor test results, and the adding quality of the mixing agent is calculated.

Further, the adding quality value of the mixture is obtained according to calculation, the quantitative adding of the mixture is completed by controlling an electronic valve of an upper layer mixture distribution pipeline, and whether the adding quality is correct or not can be checked through the numerical value change of an upper layer mixture weighing device and an upper layer stirring barrel weighing device; then the slurry is fully stirred by the stirring blade of the upper layer stirring barrel.

After stirring, under the pressure of the self weight of the slurry, the slurry is supplied to the upper-layer slurry preparation barrel through the slurry supply pipe, the flow rate of the slurry can be measured by the slurry supply pipe flowmeter, and the viscosity and the fluidity of the slurry are determined according to the test result by the flow rate of the slurry; and comparing the value with the set value of the slurry, determining whether secondary slurry mixing is needed or not, and calculating the secondary addition value of the mixing agent.

Further, the secondary adding value of the mixture is obtained through calculation, quantitative addition is completed by controlling the opening and closing of an electronic valve of a lower-layer mixture distribution pipeline, and whether the adding quality is accurate or not can be checked through the numerical value change of a lower-layer mixture weighing device; then the slurry is fully stirred by the stirring blade of the lower layer stirring barrel.

Further, after the slurry is uniformly stirred, grouting is carried out through a slurry outlet pipeline.

In the grouting process, slurry parameters need to be continuously adjusted, and a blending agent can be quantitatively added through a lower-layer blending agent distribution pipeline, so that the viscosity and the fluidity of the slurry are adjusted.

Drawings

FIG. 1 is a schematic structural view of an apparatus for automatically adjusting viscosity and fluidity of cement slurry

The labels in the figure are: 1-supporting arm, 2-upper layer stirring barrel weighing device, 3-slurry conveying pipe, 4-slurry conveying pipeline electronic valve, 5-slurry conveying pipeline flowmeter, 6-upper layer stirring barrel stirring blade, 7-upper layer stirring barrel, 21-slurry supply pipe, 8-slurry supply pipe electronic valve, 9-slurry supply pipeline flowmeter, 10-upper layer mixing agent weighing device, 11-upper layer mixing agent storage barrel, 12-upper layer mixing agent distribution pipeline electronic valve, 13-upper layer mixing agent distribution pipeline, 14-lower layer mixing agent weighing device, 15-lower layer mixing agent storage barrel, 16-lower layer mixing agent distribution pipeline electronic valve, 17-lower layer mixing agent distribution pipeline, 18-lower layer stirring barrel stirring blade, 19-lower layer stirring barrel and 20-slurry outlet pipe.

Detailed Description

In order to make the technical solution of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention

Examples

As shown in fig. 1, a device for adjusting viscosity and fluidity of cement slurry comprises a support arm 1, an upper layer mixing tank weighing device 2, a slurry conveying pipe 3, a slurry conveying pipeline electronic valve 4, a slurry conveying pipeline flow meter 5, an upper layer mixing tank stirring blade 6, an upper layer mixing tank 7, a slurry supply pipe 21, a slurry supply pipe electronic valve 8, a slurry supply pipeline flow meter 9, an upper layer mixing agent weighing device 10, an upper layer mixing agent storage tank 11, an upper layer mixing agent distribution pipeline electronic valve 12, an upper layer mixing agent distribution pipeline 13, a lower layer mixing agent weighing device 14, a lower layer mixing agent storage tank 15, a lower layer mixing agent distribution pipeline electronic valve 16, a lower layer mixing agent distribution pipeline 17, a lower layer mixing tank stirring blade 18, a lower layer mixing tank 19 and a slurry outlet pipe 20; one end of the upper-layer stirring barrel weighing device 2 is fixed on the upper-layer stirring barrel 7, and the other end is fixed on the supporting arm 1; one end of the upper-layer mixing agent weighing device 10 is fixed on the upper-layer mixing agent storage barrel 11, and the other end is fixed on the supporting arm 1; one end of the lower-layer mixing agent weighing device 14 is fixed on the lower-layer mixing agent storage barrel 15, and the other end is fixed on the supporting arm 1.

The volume of the slurry conveyed in the upper-layer stirring barrel with a specific water-cement ratio can be measured by arranging the flowmeter 5 on the slurry conveying pipeline 3, and the total mass of the slurry in the barrel can be measured by the weighing device 2; the mass can be obtained from the size of the slurry based on the density of the slurry, the mass value measured by the flow meter and the weighing scale is compared, if the error exceeds 5%, the average value of the two is taken, and the slurry configuration precision can be improved.

In this embodiment, the total mass of the upper-layer mixing tank and the cement slurry is measured to be M by the weighing device 2₁kg, mass of upper layer slurry mixing barrel is M₂kg, the water-cement ratio of cement slurry conveyed by the slurry conveying pipeline 3 is 1:1, and the volume measured by the slurry conveying pipeline flowmeter 5 is V₁Density of the slurry is rho₁Then ρ₁V₁=M₁-M₂The dry weight of cement is (M)₁-M₂）/2。

And setting the viscosity and the fluidity of the slurry according to engineering requirements, determining the addition proportion of the mixing agent based on indoor test results, and further calculating the addition quality of the mixing agent.

The upper-layer mixture distribution pipeline 13 is provided with a plurality of electronic valves, the electronic valves divide the pipeline into a plurality of partition intervals with equal volume, each interval can store a fixed amount of mixture, and the adding quality of the mixture can be accurately controlled by opening a specific valve; the stirring blade 6 of the upper layer stirring barrel is rotated while the mixture is added, so that the slurry is fully stirred.

After the stirring is finished, under the self-weight pressure of the slurry, the upper-layer slurry mixing barrel 7 supplies the slurry to the lower-layer stirring barrel 19 through the slurry supply pipe 21, the flow rate of the slurry can be measured by the slurry supply pipe flowmeter 9, and the viscosity and the fluidity of the slurry are determined according to the test result by the flow rate of the slurry; and comparing the value with the parameter setting value of the slurry, determining whether secondary slurry mixing is needed, and calculating to obtain the secondary additive value of the mixing agent.

The lower-layer mixture distribution pipeline 17 comprises a plurality of electronic valves, the electronic valves divide the pipeline into a plurality of sections of separation sections with equal volume, each section can be set according to engineering requirements to store a fixed amount of mixture, the mass of the added mixture can be accurately controlled by controlling the opening and closing of the valves, and the calibration is carried out through the numerical value change of the lower-layer mixture weighing device 14; the lower layer of the stirring barrel stirring blades 18 are rotated while the mixing agent is added to fully stir the grout, and after the grout is uniformly stirred, the grout is grouted through the grout outlet pipe 20.

Claims

1. The utility model provides a device of adjustment cement thick liquid viscosity and mobility which characterized in that: the device comprises a support arm (1), an upper-layer stirring barrel weighing device (2), a slurry conveying pipe (3), a slurry conveying pipeline electronic valve (4), a slurry conveying pipeline flowmeter (5), an upper-layer stirring barrel stirring blade (6), an upper-layer stirring barrel (7), a slurry supply pipe (21), a slurry supply pipe electronic valve (8), a slurry supply pipe flowmeter (9), an upper-layer mixing agent weighing device (10), an upper-layer mixing agent storage barrel (11), an upper-layer mixing agent distribution pipeline electronic valve (12), an upper-layer mixing agent distribution pipeline (13), a lower-layer mixing agent weighing device (14), a lower-layer mixing agent storage barrel (15), a lower-layer mixing agent distribution pipeline electronic valve (16), a lower-layer mixing agent distribution pipeline (17), a lower-layer stirring barrel stirring blade (18), a lower-layer stirring barrel (19) and a slurry outlet pipe (20); the slurry delivery pipe (3), the slurry delivery pipeline electronic valve (4) and the slurry delivery pipeline flowmeter (5) form a slurry distribution system; an upper-layer mixture weighing device (10), an upper-layer mixture storage barrel (11), an upper-layer mixture distribution pipeline electronic valve (12), an upper-layer mixture distribution pipeline (13), a lower-layer mixture weighing device (14), a lower-layer mixture storage barrel (15), a lower-layer mixture distribution pipeline electronic valve (16) and a lower-layer mixture distribution pipeline (17) form a mixture distribution system; the slurry supply pipe (21), the slurry supply pipe electronic valve (8) and the slurry supply pipe flowmeter (9) form a slurry viscosity and fluidity testing system.

2. The device for adjusting the viscosity and fluidity of cement slurry according to claim 1, wherein the upper layer mixing tank weighing device (2), the upper layer admixture weighing device (10) and the lower layer admixture weighing device (14) are all fixed on the supporting arm (1).

3. The device for adjusting the viscosity and fluidity of cement slurry according to claim 1, wherein the slurry pipe (3) is provided with a slurry pipe electronic valve (4) and a slurry pipe flow meter (5).

4. The apparatus for adjusting viscosity and fluidity of cement slurry according to claim 1, wherein the upper mixture dispensing line (13) has an electronic valve (12) for the upper mixture dispensing line, the electronic valve dividing the line into a plurality of equally divided sections, each of which stores a fixed mass of mixture.

5. The apparatus for adjusting viscosity and fluidity of cement slurry according to claim 1, wherein the lower mixture dispensing line (17) is provided with an electronic valve (16) for the lower mixture dispensing line, the electronic valve dividing the lower mixture dispensing line into a plurality of compartments of equal volume, each compartment storing a fixed mass of mixture.

6. The apparatus for adjusting viscosity and fluidity of cement slurry according to claim 1, wherein the slurry supply pipe (21) is provided with a slurry supply pipe electronic valve (8) and a slurry supply pipe flow meter (9), and the flow rate of the slurry is measured by the slurry supply pipe flow meter (9).

7. The apparatus for adjusting viscosity and fluidity of cement slurry according to claim 1, wherein the electronic valve divides the upper layer mixture distribution pipe (13) and the lower layer mixture distribution pipe (17) into a plurality of unequal intervals based on the engineering requirement, and each interval stores different quality mixtures according to the design combination.