An integrated device for cement paste mixing and setting time determination

Abstract

The invention discloses an integrated device for mixing cement slurry and measuring setting time, comprising: a bracket, a mixing detection barrel, a magnetic stirring mechanism, a consistency measuring component and a control component, etc. Cement is added into the mixing detection barrel, a rotor is placed into the mixing detection barrel, weighed water and an accelerating setting agent are added into the mixing detection barrel, the magnetic stirring mechanism stirs the cement slurry in the mixing detection barrel, the cement slurry is stirred under the control of the control component, and then the consistency measuring component measures the setting time of the cement slurry thereunder. Through the control of the control component, the consistency of the cement slurry is measured at predetermined time intervals according to experimental requirements and the setting state is judged. In the above process, the stirring and measuring process can be timely and accurately implemented through the control component, and the integration of specimen molding and testing is realized, and the stirred cement slurry does not need to be transferred into a mold, which saves manpower and time and improves the test accuracy and efficiency.

Description

Technical Field

[0001] The invention relates to the field of laboratory cement coagulation testing equipment, and in particular to an integrated device for cement paste mixing and coagulation time determination. Background Art

[0002] The setting time of cement is one of the important parameters of cement performance. The purpose of measuring the setting time of cement is to determine whether the setting time of cement is within the specified range.

[0003] In the prior art, in the research and experiments on cement coagulation, cement and water are usually first stirred and mixed in a cement mixing device. Due to the stirring blades and structural characteristics of the stirring container of the cement mixing equipment commonly used in the laboratory, there is not enough space inside the stirring device container to accommodate the coagulation time measuring device, which makes it difficult to perform subsequent processing and measurement of the cement slurry in the cement mixing equipment. Therefore, it is necessary to move the cement slurry into a sample mold, perform leveling and other treatments, and then study and observe its coagulation process and coagulation time.

[0004] In some studies, it is necessary to conduct experiments with the addition of an accelerator. Since the accelerator can make cement set and harden quickly, the cement setting time is significantly shortened after the accelerator is added during the mixing stage. If the experimental process of the above-mentioned prior art is still followed, it will lead to higher operation requirements. Specifically, the total time required for mixing cement, transferring to the mold, and leveling in the mold in the prior art should not exceed 50s from the addition of the liquid accelerator. As a result, the experimental results are greatly affected by the human factors of the operator, and the measurement is prone to errors. Summary of the invention

[0005] The purpose of the present invention is to overcome the problems in the prior art and provide an integrated device for cement paste mixing and setting time determination, comprising:

[0006] Bracket;

[0007] A mixing and testing bucket, with an opening at the top, for containing cement;

[0008] The magnetic stirring mechanism comprises a magnetic base and a rotor, wherein the magnetic base is arranged on a bracket, the mixing and detecting barrel is placed on the upper surface of the magnetic base, the rotor is located in the mixing and detecting barrel, and the magnetic base is used to make the rotor rotate at the bottom of the inner side of the mixing and detecting barrel;

[0009] A consistency measuring component is arranged on the bracket and located above the mixing detection barrel. The consistency measuring component has a probe, which can enter the mixing detection barrel in a vertical direction. The consistency measuring component is used to measure the consistency of the cement contacted by the telescopic probe;

[0010] The control component is connected with the magnetic stirring mechanism and the consistency measuring component, and is used to control the magnetic stirring mechanism and the consistency measuring component.

[0011] Furthermore, it also includes:

[0012] A rotating mechanism connected to the bracket, the rotating mechanism comprising a rotating part, the rotating part being capable of rotating about a vertical rotating axis;

[0013] The linear motion mechanism is connected to the rotating part, the linear motion mechanism comprises a linear motion part which can move in a vertical direction, and the probe is connected to the linear motion part.

[0014] Furthermore, the consistency measuring component includes a pressure sensing element, which is connected to the probe. The consistency measuring component determines the consistency of the cement by measuring the pressure applied to the probe in the vertical direction by the pressure sensing element.

[0015] Furthermore, the control component is configured to control the linear motion mechanism to make the linear motion part reciprocate up and down once at a predetermined interval, and the control component is configured to control the rotation mechanism to make the rotation part rotate by a predetermined angle at a predetermined interval.

[0016] Furthermore, a cover body is detachably connected to the upper opening of the mixing and detecting barrel, the center of the cover body is located on the rotation axis of the rotating part, a plurality of vertical guide channels are opened on the cover body, and the guide channels are evenly distributed around the center of the cover body, and the probe can be extended into the guide channel.

[0017] Furthermore, it also includes a liquid adding component, which is arranged on the bracket, and the liquid adding component includes:

[0018] A first feeding bucket is connected to the bracket and is used to hold water;

[0019] A second feeding bucket is connected to the bracket and is used to contain the accelerating setting agent;

[0020] Two connecting pipes, one connecting between the mixing and detecting barrel and the first feeding barrel, and the other connecting between the mixing and detecting barrel and the second feeding barrel, each connecting pipe is provided with a valve.

[0021] Furthermore, the valve is a solenoid valve, the control component is connected to the solenoid valve signal, and the control component is used to control the solenoid valve.

[0022] Furthermore, the control component can control the opening degree of the solenoid valve to control the fluid flow rate in the connecting pipe, the control component can control the opening time of the solenoid valve, and the control component can control the opening time of the magnetic stirring mechanism and the rotor speed.

[0023] Furthermore, it also includes: an ultrasonic device, which is arranged at the bottom of the mixing and testing barrel, and is used to generate ultrasonic waves and act on the cement in the mixing and testing barrel to make the cement surface smooth, and the control component signal is connected to the ultrasonic device to control the ultrasonic device.

[0024] Compared with the prior art, the invention has the following beneficial effects: the cement weighed out according to the appropriate mix ratio is added into the mixing and testing barrel, the rotor is placed into the mixing and testing barrel, the weighed water and the quick-setting agent are added into the mixing and testing barrel, after the addition is completed, the magnetic stirring mechanism is controlled by the control component, the rotor is rotated by the magnetic base in the mixing and testing barrel, thereby stirring the cement slurry in the mixing and testing barrel, the stirring of the cement slurry is completed under the control of the control component, and then the control component controls the consistency measurement component to measure the setting time of the cement slurry below it, and through the control of the control component, the consistency of the cement slurry is measured at predetermined time intervals according to the experimental requirements and the setting state is judged, so as to obtain experimental data such as the initial setting time and the final setting time of the cement. In the above process, the magnetic stirring mechanism can stir the cement in the mixing and testing barrel well, and the stirring and measuring process can be timely and accurately implemented through the control component, so as to realize the integration of specimen molding and testing, and the setting time can be directly measured after the specimen preparation is completed, without transferring the stirred cement slurry into the mold, saving manpower and time, and improving the accuracy and efficiency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of one embodiment;

[0026] Figure 2 A schematic diagram of the structure of a magnetic stirring mechanism according to one embodiment of the present invention;

[0027] Figure 3 A partial structural schematic diagram of one embodiment;

[0028] Figure 4 A partial structural diagram of one embodiment is shown.

[0029] Description of reference numerals:

[0030] 1. Bracket; 2. Mixing and testing barrel; 21. Cover; 211. Guide channel; 3. Magnetic stirring mechanism; 31. Magnetic base; 32. Rotor; 4. Probe; 5. Linear motion part; 6. Liquid adding assembly; 61. First feeding barrel; 62. Second feeding barrel; 63. Connecting pipe; 64. Valve. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention is described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific implementation. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention provides an integrated device for cement paste mixing and setting time determination, comprising: a support 1, a mixing detection barrel 2, a magnetic stirring mechanism 3, a consistency determination component, and a control component, wherein the mixing detection barrel 2 has an upper opening for containing cement; the magnetic stirring mechanism 3 comprises a magnetic base 31 and a rotor 32, the magnetic base 31 is arranged on the support 1, the mixing detection barrel 2 is placed on the upper surface of the magnetic base 31, the rotor 32 is located in the mixing detection barrel 2, and the magnetic base 31 is used to make the rotor 32 rotate at the bottom of the inner side of the mixing detection barrel 2; the consistency determination component is arranged on the support 1 and located above the mixing detection barrel 2, the consistency determination component has a probe 4, the probe 4 can enter the mixing detection barrel 2 in a vertical direction, and the consistency determination component is used to determine the consistency of the cement contacted by the telescopic probe 4. The control component is connected with the magnetic stirring mechanism 3 and the consistency determination component, and the control component is used to control the magnetic stirring mechanism 3 and the consistency determination component.

[0033] Specifically, please refer to Figures 1 to 4 , the cement weighed out according to the appropriate mix ratio is added into the mixing and testing barrel 1, the rotor 32 is placed into the mixing and testing barrel 1, and the weighed water and quick-setting agent are added into the mixing and testing barrel 1. After the addition is completed, the magnetic stirring mechanism 3 is controlled by the control component, and the rotor 32 is rotated in the mixing and testing barrel 1 by the action of the magnetic base 31, thereby stirring the cement slurry in the mixing and testing barrel 1. The stirring of the cement slurry is completed under the control of the control component, and then the control component controls the consistency measuring component to measure the setting time of the cement slurry thereunder. Through the control of the control component, the consistency of the cement slurry is measured and the setting state is judged at predetermined time intervals according to the experimental requirements, so as to obtain experimental data such as the initial setting time and the final setting time of the cement. In the above process, the magnetic stirring mechanism 3 can stir the cement well in the mixing and testing barrel 1, and can timely and accurately implement the stirring and measuring process through the control component, realizing the integration of specimen forming and testing. After the specimen mixing and preparation is completed, the setting time is directly measured without transferring the stirred cement slurry into the mold, saving manpower and time, and improving the test accuracy and efficiency.

[0034] Furthermore, in the prior art, for cement samples that have been transferred to the mold and smoothed, a consistency meter is often used to measure multiple points on the surface of the cement sample. In order to better replace the prior art and achieve the same function, it also includes: a rotating mechanism and a linear motion mechanism, the rotating mechanism is connected to the bracket 1, the rotating mechanism includes a rotating part, and the rotating part can rotate with the vertical rotation axis as the axis; the linear motion mechanism is connected to the rotating part, the linear motion mechanism includes a linear motion part 5 that can move in the vertical direction, and the probe 4 is connected to the linear motion part 5. Therefore, the rotating mechanism can be used to change the vertical detection point position of the probe 4, and then the linear motion mechanism is used to drive the probe 4 to move linearly in the vertical direction to the surface of the cement sample, thereby realizing multi-point testing of the sample on the premise of replacing the device and process of the prior art.

[0035] Furthermore, in order to adapt to the mode in which the linear motion mechanism drives the probe 4 to move in the vertical direction, a consistency measuring element that adapts to this movement mode is specially selected. Specifically, the consistency measuring component includes a pressure sensing element, which is connected to the probe 4. The consistency measuring component judges the consistency of the cement by the pressure exerted on the probe 4 in the vertical direction measured by the pressure sensing element, thereby adapting to the movement mode of the probe 4.

[0036] Furthermore, considering that the operation time is limited after the addition of the accelerator, if the multi-point consistency test is still performed manually, a higher operation frequency requirement will be generated. In the consistency test, there is still a defect of a large operation impact. In order to solve this technical problem, in this embodiment, a rotation mechanism and a linear motion mechanism have been set up to improve the degree of automation. Therefore, in particular, the control component is configured to control the linear motion mechanism to make the linear motion part 5 reciprocate up and down once at a predetermined time interval, and the control component is configured to rotate the rotation mechanism to rotate the rotating part by a predetermined angle at a predetermined time interval.

[0037] Furthermore, a cover 21 is detachably connected to the upper opening of the mixing and detecting barrel 2, the center of the cover 21 is located on the rotation axis of the rotating part, and a plurality of vertical guide channels 211 are provided on the cover 21, and the guide channels 211 are evenly distributed around the center of the cover 21, and the probe 4 can extend into the guide channels 211. Through the above arrangement, while the cover 21 retains water, the guide channels 11 thereon can guide the limit probe 4 to fall vertically to contact the cement slurry.

[0038] In this embodiment, the control component causes the rotating mechanism to rotate the rotating part by a predetermined angle at predetermined time intervals, so that the probe has a series of distributed detection paths on a circle with the rotation axis of the rotating part as the center line, and the central part of the cover body 21 is located on the rotation axis of the rotating part, so each guide channel 211 is also distributed on a circle with the central part of the cover body 21 as the center, so that a guide channel 211 matches a detection path of the probe 4.

[0039] In order to further improve the automation of the device and make it more suitable for the experimental process of adding accelerator, it further includes a liquid adding component 6, which is arranged on the bracket 1. The liquid adding component 6 includes: a first feeding bucket 61, a second feeding bucket 62, and two connecting pipes 63, wherein the first feeding bucket 61 is connected to the bracket 1 and is used to hold water; the second feeding bucket 62 is connected to the bracket 1 and is used to hold the accelerator; one of the two connecting pipes 63 is connected between the mixing and testing barrel 2 and the first feeding bucket 61, and the other is connected between the mixing and testing barrel 2 and the second feeding bucket 62, and each connecting pipe 63 is provided with a valve 64. Through the above settings, when in use, after completing the settings of the device and the mixing and testing barrel 2, the water and the accelerator can be simply controlled by the valve 64 to add cement to the test, and the device structure in this embodiment is used to simplify the experimental process operation.

[0040] Furthermore, the valve 64 is a solenoid valve, the control component is connected to the solenoid valve signal, and the control component is used to control the solenoid valve.

[0041] Furthermore, the control component can control the opening degree of the solenoid valve to control the fluid flow rate in the connecting pipe 63, the control component can control the opening time of the solenoid valve, and the control component can control the opening time of the magnetic stirring mechanism 3 and the rotation speed of the rotor 32.

[0042] Furthermore, in the prior art, there is a step of leveling the surface of the cement sample after the mold is transferred. In the present embodiment, since an automated setting has been performed, the time intervals between the steps are not suitable for manually leveling the sample surface, and the device does not have a good operating space. In order to enable the leveling step to be added in a form suitable for the present device, in particular, it also includes: an ultrasonic device, the ultrasonic device is arranged at the bottom of the mixing and testing barrel 2, the ultrasonic device is used to generate ultrasonic waves and act on the cement in the mixing and testing barrel 2 to level the cement surface, the control component signal is connected to the ultrasonic device to control the ultrasonic device, the ultrasonic waves generated by the ultrasonic device can evenly act on various points inside and on the surface of the cement, after high-frequency and multiple vibrations, the sample surface will tend to be leveled to achieve the leveling effect, and the leveling process is fast and rapid, does not rely on the device space, and does not add additional structures to the inside or above the mixing and testing barrel 2 to achieve the corresponding technical effect.

[0043] Through the above settings, the control component can control the valve 64, the magnetic stirring mechanism 3 and the ultrasonic device, so as to control the falling time and speed of water and the accelerating setting agent, control the dosage of water and the accelerating setting agent required for the experiment, and control the parameter variables of the stirring and leveling process. Therefore, under the premise of the automated setting in this embodiment, the operation of the device can be well adjusted according to the experimental requirements.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated device for cement paste mixing and setting time determination, characterized in that: include: Bracket (1); A mixing and testing bucket (2) with an opening at the top, the mixing and testing bucket (2) being used to contain cement; The magnetic stirring mechanism (3) comprises a magnetic base (31) and a rotor (32), wherein the magnetic base (31) is arranged on the bracket (1), the mixing and detecting barrel (2) is placed on the upper surface of the magnetic base (31), the rotor (32) is located in the mixing and detecting barrel (2), and the magnetic base (31) is used to make the rotor (32) rotate at the inner bottom of the mixing and detecting barrel (2); A consistency measuring component is arranged on a support (1) and is located above a mixing detection barrel (2). The consistency measuring component has a probe (4). The probe (4) can enter the mixing detection barrel (2) in a vertical direction. The consistency measuring component is used to measure the consistency of cement contacted by the telescopic probe (4); A control component, the control component is connected to the magnetic stirring mechanism (3) and the consistency measuring component, and the control component is used to control the magnetic stirring mechanism (3) and the consistency measuring component; The bracket (1) is connected to a rotating mechanism, the rotating mechanism comprising a rotating part, the rotating part being capable of rotating about a vertical rotating axis, the rotating part being connected to a linear motion mechanism, the linear motion mechanism comprising a linear motion part (5) being capable of moving in a vertical direction, and the probe (4) being connected to the linear motion part (5).

2. An integrated device for cement paste mixing and setting time determination as claimed in claim 1, characterized in that: The consistency measuring assembly comprises: A pressure sensing element is connected to the probe (4), and the consistency measuring component determines the consistency of the cement by measuring the pressure applied to the probe (4) in the vertical direction by the pressure sensing element.

3. An integrated device for cement paste mixing and setting time determination as claimed in claim 2, characterized in that: The control component is configured to control the linear motion mechanism to make the linear motion part (5) reciprocate up and down once at a predetermined interval, and the control component is configured to control the rotation mechanism to make the rotation part rotate by a predetermined angle at a predetermined interval.

4. An integrated device for cement paste mixing and setting time determination as claimed in claim 3, characterized in that: A cover body (21) is detachably connected to the upper opening of the mixing detection barrel (2); the central portion of the cover body (21) is located on the rotation axis of the rotating portion; a plurality of vertical guide channels (211) are provided on the cover body (21); the guide channels (211) are evenly distributed around the central portion of the cover body (21); and the probe (4) can extend into the guide channels (211).

5. An integrated device for cement paste mixing and setting time determination as claimed in claim 1, characterized in that: It also includes a liquid adding component (6) which is arranged on the support (1), and the liquid adding component (6) includes: A first feeding bucket (61), connected to the bracket (1) and used for containing water; A second feeding bucket (62) is connected to the support (1) and is used to contain the accelerating setting agent; Two connecting pipes (63), one connecting between the mixing and detecting barrel (2) and the first material adding barrel (61), and the other connecting between the mixing and detecting barrel (2) and the second material adding barrel (62), each connecting pipe (63) is provided with a valve (64).

6. An integrated device for cement paste mixing and setting time determination as claimed in claim 5, characterized in that: The valve (64) is a solenoid valve, the control component is connected to the valve (64) by signal, and the control component is used to control the valve (64).

7. An integrated device for cement paste mixing and setting time determination as claimed in claim 6, characterized in that: The control component can control the fluid flow rate in the connecting pipe (63) by controlling the opening degree of the electromagnetic valve, the control component can control the opening time of the electromagnetic valve, and the control component can control the opening time of the magnetic stirring mechanism (3) and the rotation speed of the rotor (32).

8. An integrated device for cement paste mixing and setting time determination as claimed in claim 6, characterized in that: Also includes: An ultrasonic device is arranged at the bottom of the mixing and testing barrel (2), and is used to generate ultrasonic waves and act on cement in the mixing and testing barrel (2) to make the cement surface smooth. The control component signal is connected to the ultrasonic device to control the ultrasonic device.

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