Quick-setting slurry forming device for solid waste ultrafine powder

Abstract

The invention belongs to the technical field of special equipment for energy-saving building material production, and particularly relates to a solid waste ultrafine powder rapid-hardening slurry forming device which comprises a frame body, a mixing box body is arranged on the frame body, a double-horizontal-shaft mixing assembly is arranged in the mixing box body, and a power driving assembly, a vibration driving assembly and a gas driving assembly are arranged on the frame body. The power driving assembly and the vibration driving assembly are located on the two sides of the double-horizontal-shaft mixing assembly respectively, the power driving assembly is used for driving the double-horizontal-shaft mixing assembly to mix and stir added materials, and the vibration driving assembly is used for driving the double-horizontal-shaft mixing assembly to generate high-frequency vibration during mixing and stirring. The gas driving assembly is used for maintaining the vacuum environment of the mixing box body in the mixing process, and meanwhile, the gas driving assembly is used for flushing the inner wall of the mixing box body and the double-horizontal-shaft mixing assembly after mixing and stirring are completed. The rapidly-hardened slurry obtained by the invention has the advantages of fewer pores, smaller average size and denser microstructure.

Description

Technical Field

[0001] The invention belongs to the technical field of special equipment for producing energy-saving building materials, and in particular relates to a quick-setting slurry forming device for ultrafine solid waste powder. Background Art

[0002] Different kinds of construction waste are generated in the construction industry, and the existing construction waste is difficult to clean up. The emerging construction waste treatment method is to ultrafinely pulverize the construction waste to obtain ultrafine solid waste powder, which can solve the problem of how to deal with construction waste; in the secondary utilization of ultrafine solid waste powder, the ultrafine solid waste powder can be combined with clay material to prepare quick-setting slurry, and then the quick-setting slurry is used to cast and mold prefabricated parts. In the process of preparing the quick-setting slurry, the existing traditional processing equipment only stirs the material slurry. Therefore, how to improve the mixing performance of the ultrafine solid waste powder slurry is a problem that personnel in this field continue to study. For this reason, the present invention proposes a quick-setting slurry molding device for ultrafine solid waste powder. Under a vacuum environment, a horizontal shaft is used for vacuum stirring. The ultrafine solid waste powder slurry obtained has fewer pores, a smaller average size, and a denser microstructure. When using the obtained ultrafine solid waste powder slurry. Summary of the invention

[0003] The purpose of the present invention is to provide a quick-setting slurry forming device for solid waste ultrafine powder, wherein solid waste ultrafine powder, coarse aggregate, fine aggregate and liquid water are added to the interior of a mixing box through a feeding component, and then a power drive component drives a double-horizontal-shaft mixing component from one end to rotate at high speed to complete the mixing of the materials, and at the same time, a vibration drive component drives the double-horizontal-shaft mixing component from the other end to generate high-frequency vibration while rotating at high speed, so that during the mixing process, the quick-setting slurry is driven to vibrate at high frequency, so that the aggregate and the solid waste ultrafine powder vibrate near the equilibrium position; at the same time, the mixing box is evacuated through a gas drive component, so that the quick-setting slurry is mixed and stirred under vacuum, and the material after the quick-setting slurry is formed has fewer pores, a smaller average size, and a denser microstructure.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A quick-setting slurry forming device for ultrafine powder of solid waste, comprising a frame, a mixing box is arranged on the frame, a twin-horizontal-shaft mixing assembly is arranged inside the mixing box, a power drive assembly, a vibration drive assembly and a gas drive assembly are respectively arranged on the frame, the power drive assembly and the vibration drive assembly are respectively located on both sides of the twin-horizontal-shaft mixing assembly, the power drive assembly is used to drive the twin-horizontal-shaft mixing assembly to mix and stir the added materials, the vibration drive assembly is used to drive the twin-horizontal-shaft mixing assembly to generate high-frequency vibration during mixing and stirring, the gas drive assembly is used to maintain the vacuum environment of the mixing box during the mixing process, and the gas drive assembly is used to flush the inner wall of the mixing box and the twin-horizontal-shaft mixing assembly after the mixing and stirring is completed;

[0006] A conveyor belt is placed on the side of the frame, and a forming mold groove is detachably connected to the conveyor belt.

[0007] Preferably, the mixing box is further provided with a feeding assembly and a discharging assembly, and the feeding assembly and the discharging assembly are centrally symmetrically distributed about the center point of the mixing box.

[0008] Preferably, a feeding port is provided on the mixing box body, and the side wall of the feeding port is inclined. The feeding assembly includes a feeding chute arranged at the feeding port, and a feeding cover is hinged at the feeding port. A first rubber ring is sleeved on the feeding cover plate, and the side wall of the first rubber ring fits with the side wall of the feeding port. The lower surface of the first rubber ring and the lower surface of the feeding cover plate are flush with the inner surface of the top of the mixing box body. A first pneumatic telescopic rod is movably provided on the outer wall of the feeding chute, and the output end of the first pneumatic telescopic rod is connected to the hinge shaft of the feeding cover plate through a connecting rod.

[0009] Preferably, a discharge port is opened at the bottom of the mixing box body, and the side wall of the discharge port is inclined. The discharge assembly includes a discharge chute arranged at the discharge port, and a discharge cover plate is hinged at the discharge port. A second rubber ring is sleeved on the discharge cover plate, and the side wall of the second rubber ring fits with the side wall of the discharge port. The upper surface of the second rubber ring and the upper surface of the discharge cover plate are flush with the inner surface of the bottom of the mixing box body. A second pneumatic telescopic rod is movably provided on the outer wall of the discharge chute, and the output end of the second pneumatic telescopic rod is connected to the hinging shaft of the discharge cover plate through a connecting rod.

[0010] Preferably, the twin-horizontal-shaft mixing assembly comprises two hollow rotating shafts symmetrically and movably arranged inside the mixing box, a plurality of hollow mixing rods are provided on the hollow rotating shafts, the plurality of hollow mixing rods are distributed in a spiral shape as a whole, mixing blades are provided on the hollow mixing rods, hollow reinforcing rods are provided on both sides of the middle of the mixing blades, and the hollow reinforcing rods, the hollow mixing rods and the hollow rotating shafts are all interconnected.

[0011] Preferably, the hollow reinforcing rod is symmetrically provided with a number of notches, some of the notches are in contact with the side surfaces of the mixing blades, some of the notches have sliding grooves inside, a sliding bar is movably provided inside the sliding groove, a piston block is provided at the upper end of the sliding bar, a spring is provided at the lower end of the sliding bar, and the other end of the spring is mounted on the inner wall of the hollow reinforcing rod.

[0012] Preferably, the power drive assembly includes a drive motor disposed on the frame, and the drive motor drives the two hollow shafts to rotate at the same speed through gears and chains.

[0013] Preferably, the vibration drive assembly includes a vibration motor arranged on the frame, the other ends of the two hollow shafts are sealed, the other ends of the two hollow shafts are connected to couplings, a counterweight is provided on the coupling, and the vibration motor drives the two couplings to rotate.

[0014] Preferably, a torque sensor is connected to one end of the hollow reinforcing rod.

[0015] Preferably, the gas drive component includes an air pump arranged on the frame, the air pump outlet is provided with a first tube, a water adding tube is passed through the middle of the first tube, a first solenoid valve is provided on the water adding tube, the end of the first tube is connected with a cross tube, both ends of the cross tube are provided with a tubular shell, a tubular core is movably provided inside the tubular shell, a square hole is provided inside the tubular core, a skeleton oil seal is provided at the rotation point between the tubular shell and the tubular core, the tubular core is connected with the hollow rotating shaft, the air pump inlet is connected with a second tube, the second tube is connected with the upper end surface of the mixing box, the first tube is provided with a second solenoid valve, and the second tube is provided with a third solenoid valve.

[0016] The technical effects achieved by the present invention are:

[0017] In the present invention, solid waste ultrafine powder, coarse aggregate, fine aggregate and liquid water are added into the mixing box through the feeding component, and then the power driving component drives the double-horizontal shaft mixing component from one end to rotate at a high speed to complete the mixing of the materials. At the same time, the vibration driving component drives the double-horizontal shaft mixing component from the other end to generate high-frequency vibration while rotating at a high speed. In the vibration mixing process, the hollow rotating shaft, the hollow mixing rod, the mixing blade and the hollow reinforcing rod all serve as vibration sources to transmit the vibration energy to the inside of the mixture. The blades and hollow reinforcing rods serve as vibration sources and are both stirring devices and vibration devices. Therefore, the mass of the vibrating body is large, and the vibration energy generated by the small vibration intensity can cover the entire mixing drum, thereby achieving high-quality mixing of the mixture. Finally, during the mixing process, the quick-setting slurry is driven to vibrate at high frequency, causing the aggregate and solid waste ultrafine powder to vibrate near the equilibrium position. At the same time, the mixing box is evacuated through the gas drive component, so that the quick-setting slurry is mixed and stirred under vacuum, and the quick-setting slurry obtained has fewer pores, a smaller average size, and a denser microstructure.

[0018] In the present invention, by providing a gas drive assembly, not only can the mixing box be vacuumed when stirring the quick-setting slurry to improve the stirring effect, but the mixing box can also be high-pressure washed after the stirring is completed and the quick-setting slurry is discharged.

[0019] In the present invention, by providing a control system and a torque sensor, the stirring condition of the quick-setting slurry can be detected in real time, thereby ensuring the stirring quality of the quick-setting slurry and the quality of the quick-setting slurry-molded preforms. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a quick-setting slurry forming device for ultrafine solid waste powder of the present invention;

[0021] Figure 2 It is a schematic diagram of the top view of the structure of a quick-setting slurry forming device for ultrafine solid waste powder of the present invention;

[0022] Figure 3 The present invention Figure 2 Sectional view at AA in the middle;

[0023] Figure 4 It is a schematic diagram of the internal structure of a hollow reinforcing rod in a quick-setting slurry forming device for ultrafine solid waste powder of the present invention;

[0024] Figure 5 It is a schematic diagram of the overall structure of a double-horizontal-shaft mixing assembly in a quick-setting slurry forming device for ultrafine solid waste powder of the present invention;

[0025] Figure 6 It is a schematic diagram of the overall structure of a feeding cover plate in a quick-setting slurry forming device for ultrafine solid waste powder according to the present invention;

[0026] Figure 7 It is a schematic diagram of the overall structure of a discharge cover plate in a quick-setting slurry forming device for ultrafine solid waste powder according to the present invention;

[0027] Figure 8 It is an isometric structural schematic diagram of a quick-setting slurry forming device for ultrafine solid waste powder of the present invention;

[0028] Fig. 9 It is a schematic diagram of the overall structure of a quick-setting slurry forming device for ultrafine solid waste powder from another perspective of the present invention;

[0029] Fig.10 It is a comparison of the hollow shaft load outlier points before and after the treatment in the present invention;

[0030] Fig.11 It is a division diagram of the torque load working area in the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Frame; 2. Mixing box; 3. Double horizontal shaft mixing assembly; 4. Power drive assembly; 5. Vibration drive assembly; 6. Gas drive assembly; 7. Feeding assembly; 8. Discharging assembly; 9. Torque sensor; 10. Conveyor belt; 11. Forming mold slot; 201. Feeding port; 202. Discharging port; 301. Hollow rotating shaft; 302. Hollow mixing rod; 303. Mixing blade; 304. Hollow reinforcing rod; 305. Slide; 306. Piston block; 307. Spring; 308. Notch; 401. First gear; 402. Second gear; 403. Third gear; 404. First transmission gear; 405. Second transmission gear; 406. Driving motor; 407. Driving gear; 501. Vibration motor; 502. Link axle; 503, fourth gear; 504, fifth gear; 505, sixth gear; 506, third transmission gear; 507, fourth transmission gear; 508, vibration gear; 509, counterweight; 601, air pump; 602, first tube; 603, water adding tube; 604, horizontal tube; 605, tubular shell; 606, tubular core; 607, second tube; 608, second solenoid valve; 609, third solenoid valve; 610, first solenoid valve; 611, third tube; 612, fourth solenoid valve; 701, feeding chute; 702, feeding cover; 703, first rubber ring; 704, first pneumatic telescopic rod; 801, discharging chute; 802, discharging cover; 803, second rubber ring; 804, second pneumatic telescopic rod. DETAILED DESCRIPTION

[0033] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0034] like Figure 1-9 As shown, a quick-setting slurry forming device for ultrafine powder of solid waste includes a frame 1, a mixing box 2 is provided on the frame 1, a double-horizontal-shaft mixing assembly 3 is provided inside the mixing box 2, a power drive assembly 4, a vibration drive assembly 5 and a gas drive assembly 6 are respectively provided on the frame 1, the power drive assembly 4 and the vibration drive assembly 5 are respectively located on both sides of the double-horizontal-shaft mixing assembly 3, the power drive assembly 4 is used to drive the double-horizontal-shaft mixing assembly 3 to mix and stir the added materials, the vibration drive assembly 5 is used to drive the double-horizontal-shaft mixing assembly 3 to generate high-frequency vibration during mixing and stirring, the gas drive assembly 6 is used to maintain the vacuum environment of the mixing box 2 during the mixing process, and the gas drive assembly 6 is used to flush the inner wall of the mixing box 2 and the double-horizontal-shaft mixing assembly 3 after the mixing and stirring are completed.

[0035] The mixing box 2 is also provided with a feeding assembly 7 and a discharging assembly 8 , and the feeding assembly 7 and the discharging assembly 8 are centrally symmetrically distributed about the center point of the mixing box 2 .

[0036] A conveyor belt 10 is placed on the side of the frame 1 , and a forming mold groove 11 is detachably connected to the conveyor belt 10 .

[0037] In actual use of the present invention, solid waste ultrafine powder, coarse aggregate, fine aggregate and liquid water are added to the mixing box 2 through the feeding component 7, and then the power drive component 4 drives the twin-horizontal shaft mixing component 3 from one end to rotate at high speed to complete the mixing of the materials. At the same time, the vibration drive component 5 drives the twin-horizontal shaft mixing component 3 from the other end to rotate at high speed while generating high-frequency vibration, so that during the mixing process, the quick-setting slurry is driven to vibrate at high frequency, so that the aggregate and the solid waste ultrafine powder vibrate near the equilibrium position; at the same time, the mixing box 2 is evacuated through the gas drive component 6, so that the quick-setting slurry is mixed and stirred under vacuum, and the quick-setting slurry obtained has fewer pores, a smaller average size, and a denser microstructure.

[0038] The mixed quick-setting slurry flows into the forming mold groove 11 conveyed by the conveyor belt 10 to obtain a quick-setting slurry preform. The quick-setting slurry preform obtained by the present invention has a more compact microstructure.

[0039] A feeding port 201 is provided on the mixing box 2, and the side wall of the feeding port 201 is inclined. The feeding assembly 7 includes a feeding chute 701 arranged at the feeding port 201, and a feeding cover plate 702 is hinged at the feeding port 201. A first rubber ring 703 is sleeved on the feeding cover plate 702, and the side wall of the first rubber ring 703 fits with the side wall of the feeding port 201. The lower surface of the first rubber ring 703 and the lower surface of the feeding cover plate 702 are flush with the inner surface of the top of the mixing box 2. A first pneumatic telescopic rod 704 is movably provided on the outer wall of the feeding chute 701, and the output end of the first pneumatic telescopic rod 704 is connected to the hinge shaft of the feeding cover plate 702 through a connecting rod.

[0040] In actual use, one end of the first pneumatic telescopic rod 704 is movably connected to the mixing box 2, and the other end of the first pneumatic telescopic rod 704 is movably connected to the connecting rod, and the connecting rod is connected to the hinge shaft of the feeding cover 702. Therefore, the output end of the first pneumatic telescopic rod 704 extends outward or contracts inward, so that the feeding cover 702 is driven to flip through the connecting rod and the hinge shaft, thereby opening or closing the feeding cover 702.

[0041] In the present invention, since the side wall of the feeding port 201 is inclined and the first rubber ring 703 is sleeved on the feeding cover 702, the side wall of the first rubber ring 703 fits with the side wall of the feeding port 201, so that the feeding cover 702 has a good sealing effect, and when the mixing box 2 after the material is added is vacuumed, the airtightness is better.

[0042] A discharge port 202 is provided at the bottom of the mixing box 2, and the side wall of the discharge port 202 is inclined. The discharge assembly 8 includes a discharge chute 801 arranged at the discharge port 202, and a discharge cover plate 802 is hinged at the discharge port 202. A second rubber ring 803 is sleeved on the discharge cover plate 802, and the side wall of the second rubber ring 803 fits with the side wall of the discharge port 202. The upper surface of the second rubber ring 803 and the upper surface of the discharge cover plate 802 are flush with the inner surface of the bottom of the mixing box 2. A second pneumatic telescopic rod 804 is movably provided on the outer wall of the discharge chute 801, and the output end of the second pneumatic telescopic rod 804 is connected to the hinge shaft of the discharge cover plate 802 through a connecting rod.

[0043] In actual use, one end of the second pneumatic telescopic rod 804 is movably connected to the mixing box 2, and the other end of the second pneumatic telescopic rod 804 is movably connected to the connecting rod, and the connecting rod is connected to the hinge shaft of the discharge cover 802. Therefore, the output end of the second pneumatic telescopic rod 804 extends outward or retracts inward, so that the discharge cover 802 is driven to flip through the connecting rod and the hinge shaft, thereby opening or closing the discharge cover 802.

[0044] In the present invention, since the side wall of the discharge port 202 is inclined and a second rubber ring 803 is sleeved on the discharge cover plate 802, the side wall of the second rubber ring 803 fits with the side wall of the discharge port 202, so that the discharge cover plate 802 has a good sealing effect, and when the mixing box 2 after adding the material is vacuumed, the airtightness is better.

[0045] The twin-horizontal-shaft mixing assembly 3 includes two hollow rotating shafts 301 symmetrically and movably arranged inside the mixing box 2, a plurality of hollow mixing rods 302 are arranged on the hollow rotating shafts 301, and the plurality of hollow mixing rods 302 are spirally distributed as a whole, mixing blades 303 are arranged on the hollow mixing rods 302, and hollow reinforcing rods 304 are arranged on both sides of the middle of the mixing blades 303, and the hollow reinforcing rods 304, the hollow mixing rods 302 and the hollow rotating shafts 301 are all interconnected.

[0046] In actual use, the hollow rotating shaft 301 drives the hollow mixing rod 302 to rotate, and the hollow mixing rod 302 drives the mixing blades 303 to rotate, so as to fully stir the mixed materials and greatly improve the stirring effect. Since the hollow mixing rod 302 is spirally distributed as a whole, the materials are further fully stirred.

[0047] A number of notches 308 are symmetrically provided on the hollow reinforcing rod 304 , and the notches 308 are in contact with the side surfaces of the mixing blades 303 . Slide grooves are provided inside the notches 308 , and a slide bar 305 is movably provided inside the slide groove. A piston block 306 is provided at the upper end of the slide bar 305 , and a spring 307 is provided at the lower end of the slide bar 305 . The other end of the spring 307 is installed on the inner wall of the hollow reinforcing rod 304 .

[0048] It should be noted that, since the slide bar 305 moves inside the slide groove, the piston block 306 can only slide outwards laterally, and the piston block 306 cannot slide inwards.

[0049] The power drive assembly 4 includes a drive motor 406 disposed on the frame 1 . The drive motor 406 drives the two hollow shafts 301 to rotate at the same speed through gears and chains.

[0050] The power drive assembly 4 includes a first gear 401 and a second gear 402 respectively arranged at the ends of the two hollow rotating shafts 301, a third gear 403 is provided at the end of the mixing box 2, the second gear 402 and the third gear 403 are meshed with each other, the first gear 401 is connected to the first transmission gear 404, the third gear 403 is connected to the second transmission gear 405, the first transmission gear 404 and the second transmission gear 405 are connected by a chain, a driving motor 406 is provided on the frame 1, and a driving gear 407 is provided at the output end of the driving motor 406, and the driving gear 407 is meshed with the first gear 401.

[0051] In actual use, the output end of the driving motor 406 drives the first gear 401 to rotate through the driving gear 407, the first gear 401 drives a hollow rotating shaft 301 to rotate, the first gear 401 also drives the first transmission gear 404 to rotate, the first transmission gear 404 drives the second transmission gear 405 to rotate through the chain, the second transmission gear 405 drives the third gear 403 to rotate, the third gear 403 drives the second gear 402 to rotate, the second gear 402 drives another hollow rotating shaft 301 to rotate, and finally the two hollow rotating shafts 301 rotate in opposite directions at the same speed.

[0052] The vibration drive assembly 5 includes a vibration motor 501 arranged on the frame 1, the other ends of the two hollow shafts 301 are sealed, the other ends of the two hollow shafts 301 are connected with couplings 502, and a counterweight block 509 is provided on the coupling 502. The vibration motor 501 drives the two couplings 502 to rotate.

[0053] The vibration drive assembly 5 also includes a fourth gear 503 and a fifth gear 504 respectively arranged at the other ends of the two hollow rotating shafts 301. A sixth gear 505 is provided at the other end of the mixing box 2. The fifth gear 504 and the sixth gear 505 are meshed with each other. The fourth gear 503 is connected to a third transmission gear 506. The sixth gear 505 is connected to a fourth transmission gear 507. The third transmission gear 506 and the fourth transmission gear 507 are connected by a chain. A vibration gear 508 is provided at the output end of the vibration motor 501. The vibration gear 508 and the fourth gear 503 are meshed with each other.

[0054] In actual use, the vibration motor 501 drives the vibration gear 508 to rotate, the vibration gear 508 drives the fourth gear 503 to rotate, the fourth gear 503 drives the coupling 502 to rotate, and then drives the corresponding hollow shaft 301 to rotate. While rotating, the centrifugal force of the counterweight block 509 generates a vibration source, causing the hollow shaft 301 to vibrate at a high frequency. At the same time, the fourth gear 503 drives the third transmission gear 506 to rotate, the third transmission gear 506 drives the fourth transmission gear 507 to rotate through a chain, the fourth transmission gear 507 drives the sixth gear 505 to rotate, the sixth gear 505 drives the fifth gear 504 to rotate, and the fifth gear 504 drives the corresponding coupling 502 to rotate, and then drives the corresponding hollow shaft 301 to rotate. While rotating, the centrifugal force of the corresponding counterweight block 509 generates a vibration source, causing the corresponding hollow shaft 301 to vibrate at a high frequency, and finally causing the two hollow shafts 301 to generate high-frequency vibrations.

[0055] Therefore, during the vibration mixing process, the hollow rotating shaft 301, the hollow mixing rod 302, the mixing blades 303 and the hollow reinforcing rod 304 all serve as vibration sources to transmit the vibration energy to the interior of the mixture. Since the hollow rotating shaft 301, the hollow mixing rod 302, the mixing blades 303 and the hollow reinforcing rod 304 all serve as vibration sources and are both stirring devices and vibration devices, the mass of the vibrating body is relatively large, and the vibration energy generated by the smaller vibration intensity can cover the entire mixing drum, thereby achieving high-quality mixing of the mixture.

[0056] One end of the hollow reinforcing rod 304 is connected to a torque sensor 9 .

[0057] It should be added that the present embodiment also includes a control system, and the vibration motor 501 and the drive motor 406 are motors of the same model. Under the control of the control system, the vibration motor 501 and the drive motor 406 rotate synchronously and provide torque to the hollow shaft 301 at the same time.

[0058] In this embodiment, the power data signal of the stirring power output shaft measured by the sensor is converted into a torque signal as the load signal of the stirring power output shaft for analysis in order to establish the load-time history; the relationship between the torque and power of the stirring transmission shaft is as follows: T = (9549P) / N, where T is torque (Nm), P is power (Kw), and N is motor speed (r / min); T 净 =T 实测 -T 空 , T 净 is the net torque caused by the friction of the stirring transmission system when the mixing process is not considered; T 实测 is the real-time torque converted from the measured power data; T 空 It is the torque of the stirring drive system when it is unloaded.

[0059] In this embodiment, the load during the mixing process of the quick-setting slurry is mainly affected by the change in the structural state of the mixture. According to the load characteristics during the mixing process, this embodiment selects a statistical method to check and process outliers. The basic idea of ​​using the statistical method to detect and process outliers is to specify a confidence level and determine a confidence interval. When a data point exceeds the interval, it is considered to be a singular value and processed.

[0060] During the mixing process of quick-setting slurry, the load on the power output shaft caused by the resistance of the mixture is constantly changing. There will be a large amount of data under each test condition, and the data in the entire mixing process will exceed the requirements of these three criteria; therefore, this article uses the Laida rule to identify outliers in a large amount of load data; set upper and lower thresholds of 3 times the standard deviation to check the original load data, retain the data within the threshold range, and interpolate the load data beyond the threshold range. The spline algorithm in the MATLAB software is used to calculate the interpolation and replace the outliers. The main reason for not doing the elimination process is that the time parameter load curve in the load-time history is crucial, and the elimination of outliers may cause inaccurate waveform analysis, thereby misjudging the division of the waveform stage; due to the large amount of data, one set of load-time history data is selected as an example to compare the effects before and after the above-mentioned outlier method processing, such as Fig.10 As shown in the figure; the outliers have been checked and displayed in the original load data, and by analyzing and comparing the effect diagrams before and after data processing, it can be seen that after the outliers are processed by Laida's law, the outliers in the load data of the power output shaft have been removed, and the data is more reliable; the time domain waveform is a description of the change of load amplitude over time; it can intuitively describe the law of load change over time, so as to understand and grasp the load condition of the actual load of the measured point; in the actual quick-setting slurry mixing process, such as Fig.11 As shown, it is possible to intuitively see when the quick-setting slurry is stirred. Therefore, by setting up a control system and a torque sensor 9, the stirring condition of the quick-setting slurry can be accurately checked.

[0061] The gas drive assembly 6 includes an air pump 601 arranged on the frame 1, the air outlet of the air pump 601 is provided with a first tube 602, a water adding tube 603 is passed through the middle of the first tube 602, a first solenoid valve 610 is provided on the water adding tube 603, the end of the first tube 602 is connected with a transverse tube 604, both ends of the transverse tube 604 are provided with a tubular shell 605, a tubular core 606 is movably provided inside the tubular shell 605, a square hole is provided inside the tubular core 606, a skeleton oil seal is provided at the rotation point of the tubular shell 605 and the tubular core 606, the tubular core 606 is connected with the hollow rotating shaft 301, the air inlet of the air pump 601 is connected with a second tube 607, the second tube 607 is connected with the upper end surface of the mixing box 2, a second solenoid valve 608 is provided on the first tube 602, and a third solenoid valve 609 is provided on the second tube 607.

[0062] It should be noted that a third tube 611 is connected between the first tube 602 and the second tube 607 , and a fourth solenoid valve 612 is provided on the third tube 611 .

[0063] It should be noted that the air pump 601 can perform air suction to complete the vacuum operation, and the air pump 601 can also eject high-pressure gas. The specific structure of the air pump 601 is common knowledge and will not be described in detail here.

[0064] like Figure 8 As shown, in the specific embodiment, in actual use, after adding the material and closing the feeding cover 702, the air pump 601 is started, the third solenoid valve 609 is opened, the first solenoid valve 610, the second solenoid valve 608 and the fourth solenoid valve 612 are closed, and the air pump 601 first evacuates the mixing box 2 through the second pipe 607, and then performs vibration stirring. After the vibration stirring is completed and the quick-setting slurry is discharged, the third solenoid valve 609 on the second pipe 607 is closed, and then the water adding pipe 603 is connected to the external water source pipeline, the first solenoid valve 610 and the second solenoid valve 608 are opened, and then the air pump 601 sprays high-pressure gas from the first pipe 602. Under the action of the siphon principle, the high-pressure gas and liquid water enter the tubular shell 605 from the first pipe 602. A square hole is provided inside the tubular core 606, and a skeleton oil seal is provided at the rotation point of the tubular shell 605 and the tubular core 606. Therefore, the high-pressure gas and liquid water enter the hollow rotating shaft 301 through the tubular core 606, and then enter the hollow mixing rod 302 through the hollow rotating shaft 301, and then enter the hollow reinforcing rod 304 through the hollow mixing rod 302. At this time, the high-pressure gas and liquid water push open the piston block 306, and spray the high-pressure gas and liquid water from the notch 308. Since the notch 308 fits the surface of the mixing blade 303, the high-pressure gas and liquid water sprayed from the notch 308 can flush and clean the mixing blade 303, and can also flush the inner wall of the mixing box 2 in all directions, so that the device can better flush the inside of the mixing box 2.

[0065] It should be noted that when evacuating the mixing box 2, in order to prevent the piston block 306 from being pushed out of the notch 308 after being absorbed by the negative pressure inside the mixing box 2, it is necessary to evacuate the hollow shaft 301 before evacuating the mixing box 2. Specifically, the air pump 601 is started, the first solenoid valve 610, the second solenoid valve 608 and the third solenoid valve 609 are closed, and the fourth solenoid valve 612 is opened, so that the air inlet of the air pump 601 draws air from the root of the second tube 607 through the third tube 611 from the first tube 602, and then draws air from the inside of the hollow shaft 301, so that the inside of the hollow shaft 301 is negative pressure, so that the piston block 306 fits tightly against the notch 308.

[0066] It should be added that the air inlet of the air pump 601 can not only draw air from the second tube 607, but also draw air from the outside.

[0067] like Figure 1-11 As shown, the working principle of the present invention is:

[0068] First, start feeding. One end of the first pneumatic telescopic rod 704 is movably connected to the mixing box 2, and the other end of the first pneumatic telescopic rod 704 is movably connected to the connecting rod. The connecting rod is connected to the hinge shaft of the feeding cover 702. Therefore, the output end of the first pneumatic telescopic rod 704 contracts inward, and the feeding cover 702 is driven to flip through the connecting rod and the hinge shaft to open the feeding cover 702. Then, a certain amount of solid waste ultrafine powder, coarse aggregate, fine aggregate and water are added to the mixing box 2, and then the output end of the first pneumatic telescopic rod 704 extends outward to complete the closing of the feeding cover 702.

[0069] Then, the mixing box 2 is evacuated, the air pump 601 is started, the first electromagnetic valve 610, the second electromagnetic valve 608 and the third electromagnetic valve 609 are closed, and the fourth electromagnetic valve 612 is opened, so that the air inlet of the air pump 601 draws air from the root of the second tube 607 through the third tube 611 from the first tube 602, and then draws air from the inside of the hollow shaft 301, so that the inside of the hollow shaft 301 is negative pressure, so that the piston block 306 and the notch 308 are tightly fitted; then the third electromagnetic valve 609 is opened, the first electromagnetic valve 610, the second electromagnetic valve 608 and the fourth electromagnetic valve 612 are closed, and the air pump 601 first evacuates the mixing box 2 through the second tube 607;

[0070] Then, stirring begins. The output end of the driving motor 406 drives the first gear 401 to rotate through the driving gear 407. The first gear 401 drives one hollow shaft 301 to rotate. The first gear 401 drives the first transmission gear 404 to rotate at the same time. The first transmission gear 404 drives the second transmission gear 405 to rotate through a chain. The second transmission gear 405 drives the third gear 403 to rotate. The third gear 403 drives the second gear 402 to rotate. The second gear 402 drives another hollow shaft 301 to rotate. Finally, the two hollow shafts 301 rotate in opposite directions at the same speed.

[0071] The vibration motor 501 drives the vibration gear 508 to rotate, the vibration gear 508 drives the fourth gear 503 to rotate, the fourth gear 503 drives the coupling 502 to rotate, and then drives the corresponding hollow shaft 301 to rotate. While rotating, the centrifugal force of the counterweight block 509 generates a vibration source, causing the hollow shaft 301 to vibrate at a high frequency. At the same time, the fourth gear 503 drives the third transmission gear 506 to rotate, the third transmission gear 506 drives the fourth transmission gear 507 to rotate through a chain, the fourth transmission gear 507 drives the sixth gear 505 to rotate, the sixth gear 505 drives the fifth gear 504 to rotate, the fifth gear 504 drives the corresponding coupling 502 to rotate, and then drives the corresponding hollow shaft 301. Rotate. While rotating, the centrifugal force of the corresponding counterweight block 509 generates a vibration source, which makes the corresponding hollow shaft 301 vibrate at high frequency, and finally makes the two hollow shafts 301 vibrate at high frequency; therefore, in the vibration mixing process, the hollow shaft 301, the hollow mixing rod 302, the mixing blade 303 and the hollow reinforcing rod 304 all act as vibration sources, which transmit the vibration energy to the interior of the mixture. Since the hollow shaft 301, the hollow mixing rod 302, the mixing blade 303 and the hollow reinforcing rod 304 all act as vibration sources, they are both stirring devices and vibrating devices. Therefore, the mass of the vibrating body is relatively large, and the vibration energy generated by the smaller vibration intensity can cover the entire mixing drum, thereby realizing high-quality mixing of the mixture.

[0072] The control system and the torque sensor 9 are used to detect whether the mixing is completed. If the mixing is completed, the output end of the second pneumatic telescopic rod 804 contracts inward, and the discharge cover plate 802 is driven to flip through the connecting rod and the hinge shaft, so that the discharge cover plate 802 is opened and the material is discharged. When discharging the material, the air pump 601 is started, the second solenoid valve 608 is opened, and the first solenoid valve 610, the third solenoid valve 609 and the fourth solenoid valve 612 are closed, and high-pressure gas is ejected through the first tube 602, and the high-pressure gas is finally ejected from the notch 308. The gas increases the air pressure in the mixing box 2, so that the quick-setting slurry after stirring is pressed out, thereby achieving rapid discharge.

[0073] During the discharging process, the discharging cover plate 802 is intermittently opened or closed; in conjunction with the conveyor belt 10 and the forming mold groove 11, the mixed quick-setting slurry flows from the discharging port 202 into the conveying forming mold groove 11 on the conveyor belt 10 to obtain a quick-setting slurry preform. The quick-setting slurry preform obtained by the present invention has a denser microstructure.

[0074] In the present invention, different quick-setting slurry preforms can be obtained by replacing the forming mold grooves 11 on the conveyor belt 10.

[0075] Finally, after the material is discharged, the third solenoid valve 609 on the second tube 607 is closed, and then the water supply pipe 603 is connected to the external water source pipeline, the first solenoid valve 610 and the second solenoid valve 608 are opened, and then the air pump 601 sprays high-pressure gas from the first tube 602. Under the action of the siphon principle, the high-pressure gas and liquid water enter the tubular shell 605 from the first tube 602. Since the tubular core 606 is provided with a square hole inside, and a skeleton oil seal is provided at the rotation point of the tubular shell 605 and the tubular core 606, the high-pressure gas and liquid water enter the hollow core 606 through the tubular core 606. The hollow mixing rod 302 is then passed through the hollow rotating shaft 301 and enters the hollow reinforcing rod 304. At this time, the high-pressure gas and liquid water push open the piston block 306 and spray out the high-pressure gas and liquid water from the notch 308. Since the notch 308 fits the surface of the mixing blade 303, the high-pressure gas and liquid water sprayed from the notch 308 can flush and clean the mixing blade 303, and can also flush the inner wall of the mixing box 2 in all directions, so that the device can better flush the inside of the mixing box 2.

[0076] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A quick-setting slurry forming device for ultrafine solid waste powder, comprising a frame (1), on which a mixing box (2) is arranged, characterized in that: A twin-shaft mixing assembly (3) is arranged inside the mixing box (2), and a power drive assembly (4), a vibration drive assembly (5) and a gas drive assembly (6) are respectively arranged on the frame (1), wherein the power drive assembly (4) and the vibration drive assembly (5) are respectively located on both sides of the twin-shaft mixing assembly (3), wherein the power drive assembly (4) is used to drive the twin-shaft mixing assembly (3) to mix and stir the added materials, and the vibration drive assembly (5) is used to drive the twin-shaft mixing assembly (3) to generate high-frequency vibration during mixing and stirring, and the gas drive assembly (6) is used to maintain a vacuum environment of the mixing box (2) during the mixing process, and the gas drive assembly (6) is used to flush the inner wall of the mixing box (2) and the twin-shaft mixing assembly (3) after the mixing and stirring is completed; A conveyor belt (10) is placed on the side of the frame (1), and a forming mold groove (11) is detachably connected to the conveyor belt (10).

2. The rapid-setting slurry forming device for ultrafine solid waste powder according to claim 1, characterized in that: The mixing box (2) is also provided with a feeding assembly (7) and a discharging assembly (8), and the feeding assembly (7) and the discharging assembly (8) are centrally symmetrically distributed about the center point of the mixing box (2).

3. The rapid setting slurry forming device for ultrafine solid waste powder according to claim 1, characterized in that: The mixing box (2) is provided with a feeding port (201), the side wall of the feeding port (201) is inclined, the feeding assembly (7) comprises a feeding chute (701) arranged at the feeding port (201), a feeding cover plate (702) is hinged at the feeding port (201), a first rubber ring (703) is sleeved on the feeding cover plate (702), the side wall of the first rubber ring (703) and the side wall of the feeding port (201) are mutually fitted, the lower surface of the first rubber ring (703) and the lower surface of the feeding cover plate (702) are flush with the inner surface of the top of the mixing box (2), the outer wall of the feeding chute (701) is movably provided with a first pneumatic telescopic rod (704), and the output end of the first pneumatic telescopic rod (704) is connected to the hinge shaft of the feeding cover plate (702) through a connecting rod.

4. The rapid setting slurry forming device for ultrafine solid waste powder according to claim 1, characterized in that: A discharge port (202) is provided at the bottom of the mixing box (2), and the side wall of the discharge port (202) is inclined. The discharge assembly (8) comprises a discharge chute (801) provided at the discharge port (202), and a discharge cover plate (802) is hinged at the discharge port (202). A second rubber ring (803) is sleeved on the discharge cover plate (802), and the side wall of the second rubber ring (803) is in contact with the side wall of the discharge port (202). The upper surface of the second rubber ring (803) and the upper surface of the discharge cover plate (802) are flush with the inner surface of the bottom of the mixing box (2). A second pneumatic telescopic rod (804) is movably provided on the outer wall of the discharge chute (801), and the output end of the second pneumatic telescopic rod (804) is connected to the hinge shaft of the discharge cover plate (802) through a connecting rod.

5. The rapid solidification slurry forming device of solid waste ultrafine powder according to claim 1, characterized in that: The twin-horizontal-shaft mixing assembly (3) comprises two hollow rotating shafts (301) symmetrically and movably arranged inside the mixing box (2); a plurality of hollow mixing rods (302) are arranged on the hollow rotating shafts (301); the plurality of hollow mixing rods (302) are distributed in a spiral shape as a whole; mixing blades (303) are arranged on the hollow mixing rods (302); hollow reinforcing rods (304) are arranged on both sides of the middle of the mixing blades (303); the hollow reinforcing rods (304), the hollow mixing rods (302) and the hollow rotating shaft (301) are all interconnected.

6. The rapid setting slurry forming device for ultrafine solid waste powder according to claim 1, characterized in that: A plurality of notches (308) are symmetrically provided on the hollow reinforcing rod (304), and a plurality of the notches (308) are in contact with the side surfaces of the mixing blades (303). A plurality of the notches (308) are provided inside the notches, and a slide bar (305) is movably provided inside the slide bar. A piston block (306) is provided at the upper end of the slide bar (305), and a spring (307) is provided at the lower end of the slide bar (305). The other end of the spring (307) is mounted on the inner wall of the hollow reinforcing rod (304).

7. The rapid-setting slurry forming device for ultrafine solid waste powder according to claim 1, characterized in that: The power drive assembly (4) comprises a drive motor (406) arranged on the frame (1), and the drive motor (406) drives the two hollow shafts (301) to rotate at the same speed through gears and chains.

8. The rapid-setting slurry forming device for ultrafine solid waste powder according to claim 1, characterized in that: The vibration drive assembly (5) comprises a vibration motor (501) arranged on the frame (1); the other ends of the two hollow rotating shafts (301) are sealed; the other ends of the two hollow rotating shafts (301) are connected to couplings (502); a counterweight block (509) is provided on the couplings (502); and the vibration motor (501) drives the two couplings (502) to rotate.

9. The device for forming a quick-setting slurry of solid waste ultrafine powder according to claim 1, characterized in that: One end of the hollow reinforcing rod (304) is connected to a torque sensor (9).

10. The device for forming a quick-setting slurry of solid waste ultrafine powder according to claim 1, characterized in that: The gas drive assembly (6) comprises an air pump (601) arranged on the frame (1); a first tube (602) is provided at the air outlet of the air pump (601); a water supply tube (603) is passed through the middle of the first tube (602); a first solenoid valve (610) is provided on the water supply tube (603); a transverse tube (604) is passed through the end of the first tube (602); a tubular shell (605) is provided at both ends of the transverse tube (604); a tubular core (606) is movably provided inside the tubular shell (605); ), a square hole is provided inside the tubular core (606), a skeleton oil seal is provided at the rotation point of the tubular shell (605) and the tubular core (606), the tubular core (606) is connected to the hollow shaft (301), the air inlet of the air pump (601) is connected to a second tube (607), the second tube (607) is connected to the upper end surface of the mixing box (2), the first tube (602) is provided with a second solenoid valve (608), and the second tube (607) is provided with a third solenoid valve (609).

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