Concrete mixture intelligent mixing system and method

Abstract

The present invention belongs to the field of concrete technology, and particularly relates to an intelligent concrete mixing system and method. The system comprises a hollow rotating shaft, a hollow stirring blade, a conveying pipeline, and a power unit. The outer wall of the hollow rotating shaft is provided with a plurality of electrically controlled automatic opening and closing holes at equal intervals. The hollow rotating shaft has one end that is closed and the other end that is open. Two hollow stirring blades are arranged at one-third of the length of the hollow rotating shaft, and the two hollow stirring blades are interconnected at the center section. The outer walls of the hollow stirring blades are provided with a plurality of electrically controlled automatic opening and closing holes at equal intervals. The upper and lower halves of the hollow stirring blades are provided with a plurality of pressure sensors and humidity sensors, respectively. The diameter of the conveying pipeline is consistent with the inner diameter of the hollow rotating shaft. The horizontal transport pipeline of the conveying pipeline is connected to the open end of the hollow rotating shaft, and the vertical extraction pipeline thereof is connected to a tank of admixture solution. The stirring pump of the power unit is connected to the closed end of the hollow rotating shaft, and the filling pump thereof is located between the horizontal transport pipeline and the vertical extraction pipeline.

Description

Technical Field

[0001] The present invention belongs to the technical field of concrete, and in particular relates to an intelligent mixing system and method for concrete mixtures. Background Art

[0002] The performance of concrete is a key factor affecting the large-scale application of engineering projects. For this reason, concrete mixing plants are equipped with special laboratories to study the performance of concrete mixtures. The most commonly used and most critical equipment is the forced single-horizontal-shaft concrete mixer.

[0003] However, when using this equipment to prepare concrete mixture, there are mainly three defects:

[0004] (1) The uniformity of concrete mixture is mainly judged by experience, which may result in large errors;

[0005] (2) The admixture solution mainly relies on manual weighing and addition, which not only cannot accurately control the amount of addition, but also makes it difficult to effectively ensure the uniformity of addition;

[0006] (3) During the test, it is often necessary to continuously adjust the dosage of the admixture solution to achieve the optimal state of the mixture. However, multiple manual weighing and addition operations are not only time-consuming and labor-intensive, but also have poor results.

[0007] In view of this, it is necessary to study an intelligent mixing system and method for concrete mixtures, automatically and evenly add admixture solution accurately, and use information technology to intelligently judge the uniformity of concrete mixtures, providing scientific support for experimental research on concrete mixtures. Summary of the Invention

[0008] The present invention provides an intelligent mixing system and method for concrete mixtures, which realize the automatic, uniform and accurate addition of admixture solution and the information-based intelligent judgment of the uniformity of concrete mixtures, providing scientific support for experimental research on concrete mixtures.

[0009] In order to solve the above technical problems, the present invention includes the following technical solutions:

[0010] An intelligent mixing system for concrete mixture, comprising:

[0011] A hollow rotating shaft, wherein a plurality of electrically controlled automatically openable and closable holes are arranged at equal intervals on the outer wall of the hollow rotating shaft, and one end of the hollow rotating shaft is a closed end and the other end is an open end;

[0012] A hollow stirring blade, wherein the two hollow stirring blades are respectively arranged at a position one-third of the length of the hollow rotating shaft, the hollow stirring blade and the hollow rotating shaft are mutually connected at the center section, and a plurality of electrically controlled automatic opening and closing holes are arranged at equal intervals on the outer wall of the hollow stirring blade. The hollow stirring blade includes an upper half blade and a lower half blade, and the upper half blade and the lower half blade are respectively provided with a plurality of pressure sensors and humidity sensors;

[0013] A delivery pipeline, wherein the diameter of the delivery pipeline is consistent with the inner diameter of the hollow rotating shaft, the delivery pipeline comprises a horizontal delivery pipeline and a vertical extraction pipeline, the horizontal delivery pipeline is connected to the open end of the hollow rotating shaft, the vertical extraction pipeline is connected to the additive solution barrel, and a wireless flow sensor is provided at the end of the horizontal delivery pipeline;

[0014] The power unit includes a stirring pump and a filling pump. The stirring pump is connected to the closed end of the hollow rotating shaft, and the filling pump is located between the horizontal transport pipeline and the vertical extraction pipeline.

[0015] Furthermore, it also includes a visual mobile user control terminal with a built-in control system for setting the additive solution filling amount and stirring time parameters, and receiving in real time the pressure, humidity and flow data transmitted by the pressure sensor, humidity sensor and wireless flow sensor, and sending fast stirring, slow stirring, pause, stop, on / off electronically controlled automatic opening and closing of holes, and on / off additive filling operation instructions.

[0016] Furthermore, the wall thickness of the hollow shaft is selected to be 1 cm, 1.5 cm or 2.0 cm.

[0017] Furthermore, the diameter of the hollow shaft is selected to be 6 cm, 7 cm or 8 cm.

[0018] The present invention also provides a method for intelligently mixing a concrete mixture, characterized in that the aforementioned intelligent mixing system for mixing a concrete mixture is provided as a standby, and comprises the following steps:

[0019] Step S1: Pour crushed stone, yellow sand, and machine-made sand concrete coarse and fine aggregates into a mixing barrel, and execute the stirring pump to slowly stir until the mixture is uniform;

[0020] Step S2: Pour cement, fly ash, mineral powder, and silica fume into a mixing barrel, mix with coarse and fine aggregates, and execute the stirring pump to slowly stir until the mixture is uniform;

[0021] Step S3: Pour the admixture solution into the admixture solution bucket, and set the admixture filling amount Q0 on the user control terminal;

[0022] Step S4: Start the stirring pump and execute the slow stirring operation instruction;

[0023] Step S5: Send an electronically controlled automatic opening and closing hole opening operation instruction to open all holes provided on the hollow rotating shaft and the hollow stirring blade;

[0024] Step S6: Sending an admixture filling operation instruction, the filling pump starts working, extracting the admixture solution from the admixture solution barrel through the vertical extraction pipe to the horizontal transport pipe, transporting it to the interior of the hollow rotating shaft, and mixing it into the concrete mixture through all holes set on the hollow rotating shaft and the hollow stirring blades;

[0025] Step S7: Real-time recording of the additive filling amount Q sent by the flow sensor i , if Q i =Q0, then send the command to stop the additive filling operation and turn off the electronically controlled automatic opening and closing of the hole, and stop the additive filling operation;

[0026] Step S8: Real-time recording of the pressure data P1 sent by the pressure sensor on the upper half of the 1# stirring blade at time i and the lower half of the 2# stirring blade at time i+1. 1# / i 、P2 1# / i 、P3 1# / i and P1 2# / i+1 、P2 2# / i+1 、P3 2# / i+1 ;

[0027] Step S9: Real-time record of humidity data H1 sent by the humidity sensor on the lower half of the 1# stirring blade at time i+1 and the upper half of the 2# stirring blade at time i 1# / i+1 、H2 1# / i+1 、H3 1# / i+1 and H1 2# / i 、H2 2# / i 、H3 2# / i ;

[0028] Step S10: On the user control terminal, set the pressure control threshold M0 to 2%, 3% or 5% according to the concrete strength grade; for the 1# mixing blade: automatically calculate |P1 through the user control terminal 1# / i -P2 1# / i | / P2 1# / i with |P3 1# / i -P2 1# / i | / P2 1# / i Value, denoted as M 1-2 1# With M 3-2 1# ; For 1# and 2# stirring blades: automatically calculated through the user control terminal | P1 2# / i+1 -P1 1 # / i| / P1 1# / i 、|P2 2# / i+1- P21# / i | / P2 1# / i with |P3 2# / i+1 -P3 1# / i | / P3 1# / i Value, denoted as M 1-1 1#-2# 、M 2-2 1#-2# With M 3-3 1#-2# ;

[0029] Step S11: On the user control terminal, set the humidity control threshold N0 to 1%, 2%, or 3% according to the concrete strength grade; for 1# mixing blade: automatically calculate H1 through the user control terminal 1# / i -H2 1# / i | / H2 1# / i with |H3 1# / i -H2 1# / i | / H2 1# / i Value, denoted as N 1-2 1# With N 3-2 1# ; For 1# and 2# stirring blades: automatically calculated through the user control terminal | H1 2 # / i+1 -H1 1# / i | / H1 1# / i 、|H2 2# / i+1 -H2 1# / i | / H2 1# / i with |H3 2# / i+1 -H31# / i| / H3 1# / i Value, denoted as N 1-1 1#-2# 、N 2-2 1#-2# With N 3-3 1#-2# ;

[0030] Step S12: If M 1-2 1# 、M 3-2 1# 、M 1-1 1#-2# 、M 2-2 1#-2# With M 3-3 1#-2# ≤M0 and N 1-2 1# 、N 3-2 1# 、N 1-1 1#-2# 、N 2-2 1#-2# With N 3-3 1#-2#If ≤N0, it indicates that the concrete mixture has been completely mixed and uniform, execute the stop mixing pump operation instruction, and the mixing is completed.

[0031] Furthermore, if it is necessary to re-add the admixture solution to adjust the performance of the concrete mixture, steps S3 to S12 are repeated until the performance of the concrete mixture reaches the ideal set state.

[0032] In this embodiment, more preferably, if it is necessary to re-add the admixture solution to adjust the performance of the concrete mixture, steps S3 to S12 are repeated until the performance of the concrete mixture reaches the ideal set state.

[0033] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0034] The present invention provides an intelligent mixing system for concrete mixtures. By arranging pressure / humidity sensors on spiral hollow mixing blades and combining them with pressure / humidity index control rules, real-time information-based intelligent and accurate judgment of the uniformity and stability of concrete mixtures can be achieved, providing scientific support for experimental research on concrete mixtures. By arranging electrically controlled automatic opening and closing holes on a cylindrical hollow rotating shaft and spiral hollow mixing blades and combining them with the design of an admixture delivery pipeline and a filling pump, an automated and uniform addition operation of an admixture solution can be achieved. By designing a wireless flow sensor, the error in the addition amount of the admixture solution can be effectively controlled, thereby ensuring the quality of the concrete mixture. The intelligent mixing method for concrete mixtures is highly targeted, logically clear, scientifically reliable, simple to operate, and low in cost, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic structural diagram of an intelligent mixing system for concrete mixture according to an embodiment of the present invention;

[0036] Figure 2 The figure is a flow chart of an intelligent mixing method for concrete mixture according to an embodiment of the present invention.

[0037] In the picture:

[0038] 1-Hollow shaft, 2-Closed end, 3-Open end, 4-1# hollow stirring blade upper half, 5-1# hollow stirring blade lower half, 6-2# hollow stirring blade upper half, 7-2# hollow stirring blade lower half, 8-Pressure sensor, 9-Humidity sensor, 10-Automatic opening and closing hole, 11-Horizontal transport pipeline, 12-Vertical extraction pipeline, 13-Filling pump, 14-Mixing pump, 15-Mixing barrel, 16-Additive solution barrel, 17-User control terminal, 18-Flow sensor. DETAILED DESCRIPTION

[0039] The following is a further detailed description of the intelligent concrete mixing system and method provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are highly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention. For ease of description, the "upper" and "lower" references below are consistent with the upper and lower directions in the accompanying drawings, but this does not constitute a limitation of the technical solutions of the present invention.

[0040] Example 1

[0041] The following combination Figure 1 and Figure 2 , a detailed description of the intelligent mixing system for concrete mixture of the present invention is given.

[0042] A smart concrete mixing system includes a hollow rotating shaft 1, a hollow mixing blade, a conveying pipeline, and a power unit. A plurality of electrically controlled automatically opening and closing holes 10 are arranged at equal intervals on the outer wall of the hollow rotating shaft 1. The hollow rotating shaft 1 has a closed end 2 at one end and an open end 3 at the other end. Two hollow mixing blades are respectively arranged at one-third of the length of the hollow rotating shaft 1. That is, the two hollow mixing blades are arranged at equal intervals along the length direction of the hollow rotating shaft 1. The hollow mixing blade and the hollow rotating shaft 1 are interconnected at a central cross-section. A plurality of electrically controlled automatically opening and closing holes 10 are arranged at equal intervals on the outer wall of the hollow mixing blade. The hollow mixing blade includes an upper half and a lower half, each of which is provided with a plurality of pressure sensors 8 and a humidity sensor 9.

[0043] The diameter of the delivery pipeline is consistent with the inner diameter of the hollow shaft 1. The delivery pipeline includes a horizontal delivery pipeline 11 and a vertical extraction pipeline 12. The horizontal delivery pipeline 11 is connected to the open end 3 of the hollow shaft 1, and the vertical extraction pipeline 12 is connected to the additive solution barrel 16. A wireless flow sensor 18 is provided at the end of the horizontal delivery pipeline 11.

[0044] The power unit includes a mixing pump 14 and a filling pump 13. The mixing pump 14 is connected to the closed end 2 of the hollow rotating shaft 1 to provide power for the concrete mixture mixing operation; the filling pump 13 is located between the horizontal transport pipe 11 and the vertical extraction pipe 12 to provide power for filling the concrete admixture solution.

[0045] Specifically, the wall thickness of the hollow shaft 1 can be 1cm, 1.5cm, or 2.0cm. Several electrically controlled automatic opening and closing holes 10 are evenly distributed at intervals L1 on the outer wall of the hollow shaft 1. The diameter of the automatic opening and closing holes 10 can be 0.8cm, 1.0cm, or 1.2cm. The diameter of the hollow shaft 1 can be 6cm, 7cm, or 8cm. The length of the hollow shaft 1 can be 55cm, 60cm, or 70cm. The hollow shaft 1 is positioned at the center height of the mixing barrel 15. Several electrically controlled automatic opening and closing holes 10 are evenly distributed at intervals L2 on the outer wall of the hollow stirring blade. The diameter of the automatic opening and closing holes 10 can be 0.5cm, 0.6cm, or 0.8cm. The hollow stirring blades include the first hollow stirring blade upper half 4, the first hollow stirring blade lower half 5, the second hollow stirring blade upper half 6, and the second hollow stirring blade lower half 7. There are three groups of six pressure sensors 8. Three pressure sensors 8 are affixed to the upper half of the first hollow stirring blade 4 at an equal distance of L3, while another three pressure sensors 8 are affixed to the lower half of the second hollow stirring blade 7 at an equal distance of L3. Three groups of six humidity sensors 9 are provided. Three humidity sensors 9 are affixed to the lower half of the first hollow stirring blade 5 at an equal distance of L3, while another three humidity sensors 9 are affixed to the upper half of the second hollow stirring blade 6 at an equal distance of L3. The spacing L3 should be set so that the pressure sensors 8 and humidity sensors 9 are affixed within the spacing L2 to prevent the pressure sensors 8 and humidity sensors 9 from blocking the electrically controlled automatic opening and closing holes 10 on the hollow stirring blade.

[0046] In this embodiment, more preferably, it also includes a visual mobile user control terminal 17, a built-in control system, which sets the additive solution filling amount and stirring time parameters, and receives in real time the pressure, humidity and flow data transmitted by the pressure sensor 8, the humidity sensor 9 and the wireless flow sensor 18, and sends fast stirring, slow stirring, pause, stop, on / off electronically controlled automatic opening and closing of the hole 10, and on / off additive filling operation instructions.

[0047] The wireless flow sensor 18 is provided at the end of the horizontal transport pipeline 11 and is used to measure the addition amount of the additive solution in real time.

[0048] Please continue to refer to Figure 1 and Figure 2 The present invention also provides a method for intelligently mixing a concrete mixture, and provides the aforementioned intelligent mixing system for standby use, comprising the following steps:

[0049] Step S1: Pour crushed stone, yellow sand, and machine-made sand concrete coarse and fine aggregates into the mixing barrel 15, and execute the stirring operation instruction of the stirring pump 14 until the mixture is uniform and then stop stirring;

[0050] Step S2: Pour cement, fly ash, mineral powder and silica fume into the mixing barrel 15 and mix with the coarse and fine aggregates. Then, execute the slow stirring operation instruction of the mixing pump 14 until the mixture is uniform and then stop stirring.

[0051] Step S3, pouring the admixture solution into the admixture solution barrel 16, and setting the admixture filling amount Q0 on the user control terminal 17;

[0052] Step S4, start the stirring pump 14 and execute the slow stirring operation instruction;

[0053] Step S5: Send an opening operation instruction to the electronically controlled automatic opening and closing holes 10 to open all the holes provided on the hollow rotating shaft 1 and the hollow stirring blades;

[0054] Step S6: Send an admixture filling operation instruction, and the filling pump 13 starts working to extract the admixture solution from the admixture solution barrel 16 through the vertical extraction pipe 12 to the horizontal transportation pipe 11, and transport it to the interior of the hollow rotating shaft 1, and mix it into the concrete mixture through all the holes set on the hollow rotating shaft 1 and the hollow stirring blades;

[0055] Step S7: Real-time recording of the additive filling amount Q sent by the flow sensor 18 i , if Q i =Q0, then send the command to stop the additive filling operation and close the electronically controlled automatic opening and closing hole 10, and stop the additive filling operation;

[0056] Step S8: Real-time recording of the pressure data P1 sent by the pressure sensor 8 on the upper half blade 4 of the stirring blade 1# at time i and the lower half blade 7 of the stirring blade 2# at time i+1. 1# / i 、P2 1# / i 、P3 1# / i and P1 2# / i+1 、P2 2# / i+1 、P3 2# / i+1 ;

[0057] Step S9, real-time recording of humidity data H1 sent by humidity sensor 9 on the lower half leaf 5 of stirring blade 1# at time i+1 and the upper half leaf 6 of stirring blade 2# at time i 1# / i+1 、H2 1# / i+1 、H3 1# / i+1 and H1 2# / i 、H2 2# / i 、H3 2# / i ;

[0058] Step S10: At the user control terminal 17, the pressure control threshold M0 is set to 2%, 3% or 5% according to the concrete strength grade; for the 1# mixing blade: the user control terminal 17 automatically calculates |P1 1# / i -P2 1# / i | / P2 1# / iwith |P3 1# / i -P2 1# / i | / P2 1# / i Value, denoted as M 1-2 1# With M 3-2 1# ; For 1# and 2# stirring blades: automatically calculated by the user control terminal 17 | P1 2 # / i+1 -P1 1# / i| / P1 1# / i 、|P2 2# / i+1- P2 1# / i | / P2 1# / i with |P3 2# / i+1 -P3 1# / i | / P3 1# / i Value, denoted as M 1-1 1#-2# 、M 2-2 1#-2# With M 3-3 1#-2# ;

[0059] Step S11: At the user control terminal 17, the humidity control threshold N0 is set to 1%, 2%, or 3% according to the concrete strength grade; for the 1# mixing blade: the user control terminal 17 automatically calculates |H1 1# / i -H2 1# / i | / H2 1# / i with |H3 1# / i -H2 1# / i | / H2 1# / i Value, denoted as N 1-2 1# With N 3-2 1# ; For 1# and 2# stirring blades: automatically calculated through the user control terminal | H1 2 # / i+1 -H1 1# / i | / H1 1# / i 、|H2 2# / i+1 -H2 1# / i | / H2 1# / i with |H3 2# / i+1 -H31# / i| / H3 1# / i Value, denoted as N 1-1 1#-2# 、N 2-2 1#-2# With N 3-3 1#-2# ;

[0060] Step S12: If M 1-2 1# 、M 3-2 1# 、M1-1 1#-2# 、M 2-2 1#-2# With M 3-3 1#-2# ≤M0 and N 1-2 1# 、N 3-2 1# 、N 1-1 1#-2# 、N 2-2 1#-2# With N 3-3 1#-2# If ≤N0, it indicates that the concrete mixture has been completely mixed and uniform, execute the stop mixing pump operation instruction, and the mixing is completed.

[0061] The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples. The above embodiments only express several embodiments of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, several variations and improvements can be made, which all fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent of the present invention shall be based on the attached claims.

Claims

1. An intelligent concrete mixing system, characterized in that: include: A hollow rotating shaft, wherein a plurality of electrically controlled automatically openable and closable holes are arranged at equal intervals on the outer wall of the hollow rotating shaft, and one end of the hollow rotating shaft is a closed end and the other end is an open end; A hollow stirring blade, wherein the two hollow stirring blades are respectively arranged at a position one-third of the length of the hollow rotating shaft, the hollow stirring blade and the hollow rotating shaft are mutually connected at the center section, and a plurality of electrically controlled automatic opening and closing holes are arranged at equal intervals on the outer wall of the hollow stirring blade. The hollow stirring blade includes an upper half blade and a lower half blade, and the upper half blade and the lower half blade are respectively provided with a plurality of pressure sensors and humidity sensors; A delivery pipeline, wherein the diameter of the delivery pipeline is consistent with the inner diameter of the hollow rotating shaft, the delivery pipeline comprises a horizontal delivery pipeline and a vertical extraction pipeline, the horizontal delivery pipeline is connected to the open end of the hollow rotating shaft, the vertical extraction pipeline is connected to the additive solution barrel, and a wireless flow sensor is provided at the end of the horizontal delivery pipeline; The power unit includes a stirring pump and a filling pump. The stirring pump is connected to the closed end of the hollow rotating shaft, and the filling pump is located between the horizontal transport pipeline and the vertical extraction pipeline.

2. The intelligent mixing system for concrete mixture according to claim 1, characterized in that: It also includes a visual mobile user control terminal with a built-in control system for setting the additive solution filling amount and stirring time parameters, and receiving in real time the pressure, humidity and flow data transmitted by the pressure sensor, humidity sensor and wireless flow sensor, and sending fast stirring, slow stirring, pause, stop, on / off electronically controlled automatic opening and closing of holes, and on / off additive filling operation instructions.

3. The intelligent mixing system for concrete mixture according to claim 1, characterized in that: The wall thickness of the hollow shaft is selected to be 1 cm, 1.5 cm or 2.0 cm.

4. The intelligent mixing system for concrete mixture according to claim 1, characterized in that: The diameter of the hollow shaft is selected to be 6 cm, 7 cm or 8 cm.

5. A method for intelligent mixing of concrete mixtures, characterized in that: The intelligent concrete mixing system according to any one of claims 1 to 4 is provided as a standby system, comprising the following steps: Step S1: Pour crushed stone, yellow sand, and machine-made sand concrete coarse and fine aggregates into a mixing barrel, and execute the stirring pump to slowly stir until the mixture is uniform; Step S2: Pour cement, fly ash, mineral powder, and silica fume into a mixing barrel, mix with coarse and fine aggregates, and execute the stirring pump to slowly stir until the mixture is uniform; Step S3: Pour the admixture solution into the admixture solution bucket, and set the admixture filling amount Q0 on the user control terminal; Step S4: Start the stirring pump and execute the slow stirring operation instruction; Step S5: Send an electronically controlled automatic opening and closing hole opening operation instruction to open all holes provided on the hollow rotating shaft and the hollow stirring blade; Step S6: Sending an admixture filling operation instruction, the filling pump starts working, extracting the admixture solution from the admixture solution barrel through the vertical extraction pipe to the horizontal transport pipe, transporting it to the interior of the hollow rotating shaft, and mixing it into the concrete mixture through all holes set on the hollow rotating shaft and the hollow stirring blades; Step S7: Real-time recording of the additive filling amount Q sent by the flow sensor i , if Q i =Q0, then send the command to stop the additive filling operation and turn off the electronically controlled automatic opening and closing of the hole, and stop the additive filling operation; Step S8: Real-time recording of the pressure data P1 sent by the pressure sensor on the upper half of the 1# stirring blade at time i and the lower half of the 2# stirring blade at time i+1. 1# / i 、P2 1# / i 、P3 1# / i and P1 2# / i+1 、P2 2# / i+1 、P3 2# / i+1 ; Step S9: Real-time record of humidity data H1 sent by the humidity sensor on the lower half of the 1# stirring blade at time i+1 and the upper half of the 2# stirring blade at time i 1# / i+1 、H2 1# / i+1 、H3 1# / i+1 and H1 2# / i 、H2 2# / i 、H3 2# / i ; Step S10: On the user control terminal, set the pressure control threshold M0 to 2%, 3% or 5% according to the concrete strength grade; for the 1# mixing blade: automatically calculate |P1 through the user control terminal 1# / i -P2 1# / i | / P2 1# / i with |P3 1# / i -P2 1# / i | / P2 1# / i Value, denoted as M 1-2 1# With M 3-2 1# ; For 1# and 2# stirring blades: automatically calculated through the user control terminal | P1 2# / i+1 -P1 1# / i| / P1 1 # / i 、|P2 2# / i+1- P2 1# / i | / P2 1# / i with |P3 2# / i+1 -P3 1# / i | / P3 1# / i Value, denoted as M 1-1 1#-2# 、M 2-2 1#-2# With M 3-3 1#-2# ; Step S11: On the user control terminal, set the humidity control threshold N0 to 1%, 2%, or 3% according to the concrete strength grade; for 1# mixing blade: automatically calculate H1 through the user control terminal 1# / i -H2 1# / i | / H2 1# / i with |H3 1# / i -H2 1# / i | / H2 1# / i Value, denoted as N 1-2 1# With N 3-2 1# ; For 1# and 2# stirring blades: automatically calculated through the user control terminal | H1 2# / i+1 -H1 1 # / i | / H1 1# / i 、|H2 2# / i+1 -H2 1# / i | / H2 1# / i with |H3 2# / i+1 -H31# / i| / H3 1# / i Value, denoted as N 1-1 1#-2# 、N 2-2 1#-2# With N 3-3 1#-2# ; Step S12: If M 1-2 1# 、M 3-2 1# 、M 1-1 1#-2# 、M 2-2 1#-2# With M 3-3 1#-2# ≤M0 and N 1-2 1# 、N 3-2 1# 、N 1-1 1#-2# 、N 2-2 1#-2# With N 3-3 1#-2# If ≤N0, it indicates that the concrete mixture has been completely mixed and uniform, execute the stop mixing pump operation instruction, and the mixing is completed.

6. The method according to claim 5, characterized in that If it is necessary to add the admixture solution again to adjust the performance of the concrete mixture, steps S3 to S12 are repeated until the performance of the concrete mixture reaches the ideal set state.

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