An efficient preparation device and method for a hard gypsum-based curing agent

Abstract

The application provides a high-efficiency preparation device of a hard gypsum-based curing agent and a preparation method thereof, and belongs to the technical field of soft soil curing agent preparation. A feeding pipeline is installed on the side of a pretreatment module, a dry mixing and crushing module for first mixing is installed on the side of the feeding pipeline, a wet mixing and dispersing module for second mixing is connected to the bottom of the dry mixing and crushing module, and a standard box body is placed at the bottom of the wet mixing and dispersing module. The raw materials are fully dried by a temperature control rod, the quality of the raw materials is accurately controlled by a sensor, the curing agent ratio is optimized, the raw materials are fully dispersed and efficiently mixed by combining a double-box mixing structure (upper box crushing + lower cavity wet mixing), the quality of the curing agent is improved, the internal powder and slurry are cleaned down by the dry mixing / wet mixing cleaning box, the use efficiency of the raw materials is improved, the self-cleaning structure does not need to stop the device for cleaning, energy is saved, the cost is reduced, the device does not need to be opened for cleaning, dust is prevented from flying out to pollute the environment.

Description

Technical Field

[0001] This invention belongs to the field of soft soil curing agent preparation technology, specifically relating to a high-efficiency curing agent preparation device and preparation method based on anhydrite. Background Technology

[0002] As a commonly used material for improving soft soil, curing agents can transform low-strength, loosely structured, and poorly mechanically capable silty clay into dense, stable, and difficult-to-decompose solid materials during the curing process. This not only significantly improves the engineering performance of soft soil but also contributes to the resource utilization and reduced-volume disposal of some solid wastes. Among various improvement materials, cement is the most commonly used matrix material due to its rapid strength development and wide applicability; slag, due to its potential activity and good later-stage performance, is often used as an auxiliary cementitious component in combination with cement to optimize the physical and mechanical properties and environmental adaptability of the modified material. Currently, the multi-component synergistic design of curing agent cementing systems has become one of the hot research directions in this field.

[0003] Traditional curing agent mixing equipment suffers from problems such as mineral powder agglomeration, uneven distribution of gypsum, and serious residue in the cavity. In addition, manual opening of the device for cleaning is inefficient, dust flies out and pollutes the environment, and the residue affects the mixing accuracy of the next batch.

[0004] In conclusion, conducting research on the preparation device of soft soil solidification agent based on anhydrite is of great significance. Summary of the Invention

[0005] To comprehensively address the above-mentioned problems, especially the shortcomings of existing technologies, this invention provides a high-efficiency preparation device and method for hardening agents based on anhydrite, which can comprehensively solve the problem of the inability to prepare soft soil hardening agents efficiently and with high quality.

[0006] To achieve the above objectives, the present invention employs the following technical means: In a first aspect, the present invention provides a high-efficiency preparation device for a curing agent based on anhydrite. The device includes a base, a support column mounted on the upper part of the base, a pretreatment module mounted on the upper part of the support column, a feed pipe mounted on the side of the pretreatment module, a dry mixing and crushing module for a first mixing operation mounted on the side of the feed pipe, a wet mixing and dispersing module for a second mixing operation connected to the bottom of the dry mixing and crushing module, a standard box placed at the bottom of the wet mixing and dispersing module, and a vibration module mounted on the side of the standard box. The pretreatment module includes a pretreatment box, inside which a multi-functional pretreatment plate is installed. An arc-shaped baffle is installed on the upper side of the multi-functional pretreatment plate, and the arc-shaped baffle is inserted into the inner wall of the pretreatment box. A vibrating plate is installed inside the multi-functional pretreatment plate. A flexible sealing cloth is provided around the vibrating plate. A pretreatment vibrator is installed at the bottom of the vibrating plate. A pressure sensor is installed inside the vibrating plate. A temperature control rod is installed at the top of the vibrating plate. The dry mixing crushing module includes a dry mixing box. A dry mixing cleaning box is provided inside the dry mixing box. A dry mixing cleaning plate is installed inside the dry mixing cleaning box. A dry mixing cleaning sealing plate is provided at the top of the dry mixing cleaning plate. A cleaning brush and an air outlet are provided at the top of the dry mixing cleaning plate.

[0007] Optionally, after thorough mixing, the mixed slurry is injected into a standard tank and compacted using the vibration module. The vertical and horizontal telescopic shafts in the vibration module are used to adjust the insertion of the vibrator into the standard tank. The slurry is injected in two stages. The first stage involves injecting 2 / 3 of the slurry into the standard tank, followed by initial vibration. A Φ3 mm vibrator is inserted and the tank is vibrated spirally along the edge of the standard tank 20 times at a frequency of 3 times / second and an amplitude of 1-2 mm. Then, the tank is filled with slurry and a final vibration is performed, with a second vibration of 15 times, ensuring the vibrator is inserted to the bottom. Finally, excess slurry is scraped off to ensure that the end face flatness error is ≤0.1 mm. After the material is discharged, the standard tank is removed, and the final self-cleaning operation begins. The wet-mix cleaning tank starts operating on the same principle as the dry-mix cleaning tank. The cleaning scraper and water spray nozzles start operating, spraying cleaning water to scrape off the slurry adsorbed on the inner wall.

[0008] Secondly, the present invention provides a high-efficiency preparation device for a curing agent based on anhydrite as described in the first aspect. The pretreatment box has a discharge port at the bottom of its side, a material distribution plate inside the pretreatment box, a controller installed on the outside of the pretreatment box, a first drive motor installed on the outside of the pretreatment module, a flip shaft connected to the output end of the first drive motor, and a multi-functional pretreatment plate installed on the flip shaft. A display is provided on the upper part of the outside of the pretreatment box, and a flip cover is installed on the top of the pretreatment box.

[0009] Optionally, the dry mixing chamber is provided with an air inlet on the outside, a second drive motor is provided on the upper part of the dry mixing chamber, a dry mixing stirring rod is connected to the output end of the second drive motor, a dry mixing connecting frame is connected to the upper part of the dry mixing stirring rod, a dry mixing cleaning box is connected to the front end of the dry mixing connecting frame, a shredder is installed at the front end of the dry mixing cleaning box, a third drive motor is provided inside the dry mixing cleaning box, a dry mixing cleaning lead screw is connected to the output end of the third drive motor, a dry mixing cleaning slide plate is sleeved on the dry mixing cleaning lead screw, a dry mixing cleaning spring storage shaft is installed at the front end of the dry mixing cleaning slide plate, and dry mixing cleaning plates are provided on both sides of the dry mixing cleaning spring storage shaft.

[0010] Optionally, a dry mixing separation plate is provided on the bottom side inside the dry mixing box, a fourth drive motor is installed on the outside of the dry mixing separation plate, and a dry mixing output pipe is provided at the bottom of the dry mixing separation plate.

[0011] Optionally, the wet mixing and dispersing module includes a wet mixing chamber, an inlet for water connection on the outside of the wet mixing chamber, a fifth drive motor on the upper part of the wet mixing chamber, a wet mixing stirring rod connected to the output end of the fifth drive motor, a wet mixing connecting frame connected to the upper part of the wet mixing stirring rod, a water outlet on the top of the wet mixing stirring rod, and a wet mixing cleaning box connected to the front end of the wet mixing connecting frame.

[0012] Optionally, a wet mixing rod is installed at the front end of the wet mixing cleaning box, and a sixth drive motor is installed inside the wet mixing cleaning box.

[0013] Optionally, the output end of the sixth drive motor is connected to a wet mixing and cleaning screw, a wet mixing and cleaning slide plate is sleeved on the wet mixing and cleaning screw, a wet mixing and cleaning spring storage shaft is installed at the front end of the wet mixing and cleaning slide plate, wet mixing and cleaning plates are provided on both sides of the wet mixing and cleaning spring storage shaft, a wet mixing and cleaning sealing plate is provided at the top of the wet mixing and cleaning plate, a cleaning scraper and a water spray nozzle are provided at the upper part of the wet mixing and cleaning plate, a wet mixing separation plate is provided on the bottom side inside the wet mixing box, a seventh drive motor is installed on the outside of the wet mixing separation plate, and a wet mixing material output pipe is provided at the bottom of the wet mixing separation plate.

[0014] Optionally, the vibration module includes a vibration base frame, a vertical telescopic shaft is installed on the upper part of the vibration base frame, a horizontal telescopic shaft is provided on the upper part of the vertical telescopic shaft, a vibration frame is provided at the front end of the horizontal telescopic shaft, a handle is provided on the upper part of the vibration frame, and a vibration rod is provided at the bottom of the vibration frame.

[0015] Thirdly, a method for preparing a hardener based on anhydrite is provided, employing the high-efficiency preparation device for anhydrite-based hardener described in the second aspect. The specific steps are as follows: S1, raw material pretreatment: The raw materials are respectively placed into each compartment of the pretreatment chamber, and the environment inside the pretreatment chamber is maintained at 45℃ for 24 hours. The moisture content of the raw materials is ≤0.5%. The raw materials include anhydrite, cement, and slag. The anhydrite is industrial-grade anhydrous gypsum with a fineness ≥200 mesh and an SO3 content ≥50%. The slag is S95 grade blast furnace slag with a specific surface area ≥400... m² / kg, CaO content 30-40%; S2, Proportional batching: The pressure sensor in the multi-functional pretreatment plate collects the quality information of each raw material. The dried raw materials are added to the dry-mixing crushing module according to a certain proportion. The mass percentage composition is: gypsum 5-15%; cement 60-80%; slag 10-25%; S3, Double mixing: The first mixing is carried out in the dry-mixing crushing module, where the crushing and cutting blades dry-mix and crush for 10 seconds. Then, the second mixing is carried out in the wet-mixing dispersion module, where the wet mixing rods wet-mix and disperse. Water is added to the wet-mixing dispersion module during mixing. The raw materials are mixed in a mass ratio of 0.4:1 to form a slurry. The second mixing process consists of slow mixing, settling, and fast mixing. The slow mixing lasts 120±5 seconds at a speed of 60 rpm, the settling lasts 15±2 seconds, and the fast mixing lasts 120±5 seconds at a speed of 120 rpm. S4, Molding and Curing: The slurry is injected into a standard box in two stages. The first injection fills 2 / 3 of the standard box. Then, initial vibration is performed by inserting a Φ3mm vibrator and spirally vibrating along the edge of the standard box 20 times at a frequency of 3 times / second and an amplitude of 1-2. mm, then fill the standard box 7 with slurry and perform final vibration, vibrating 15 times in a second time, with the vibrator inserted to the bottom. Finally, scrape off the excess slurry to ensure the end face flatness error is ≤0.1 mm; S5, self-cleaning: After the first mixing in step S3, the cleaning brush and air blower in the dry mixing cleaning plate begin to clean the inner wall and remove the adsorbed raw materials. 0.5MPa compressed air is introduced through the air blower to maximize the utilization of the raw materials. After the second mixing in step S3, the cleaning scraper in the wet mixing cleaning plate begins to scrape off the slurry adsorbed on the inner wall and remove the slurry completely. Finally, after completing step S4, the water spray nozzle in the wet mixing cleaning plate also begins to clean the adhering substances on the inner wall. Compared with the prior art, the beneficial effects of the present invention are as follows: 1) Precisely control the curing agent ratio to improve the quality of the curing agent: The present invention fully dries the raw materials by using a temperature control rod on a vibrating plate and relies on a sensor at the bottom of the plate to precisely control the quality of the raw materials and optimize the curing agent ratio, which is 5-15% gypsum, 60-80% cement, and 10-25% slag, thereby improving the quality of the curing agent preparation. 2) Dual mixing to improve mixing effect: This invention combines the results of dual-chamber mixing (upper chamber crushing + lower chamber wet mixing) to fully cut and disperse the raw materials and then mix them efficiently, thereby improving the quality of the curing agent; 3) Automated cleaning, full utilization of raw materials, and reduced environmental pollution: This invention uses dry mixing and wet mixing cleaning boxes to clean the powder and slurry adhering to the inner wall, improving the efficiency of raw material use. At the same time, the self-cleaning structure does not require stopping the device for cleaning, which is highly efficient, energy-saving and cost-reducing. Moreover, it does not require opening the device for cleaning, preventing dust from flying out and polluting the environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the preparation apparatus of the present invention; Figure 2 This is a front view of the preparation apparatus of the present invention; Figure 3 This is a schematic diagram of the preprocessing module of the present invention; Figure 4 This is a cross-sectional view of the preprocessing module of the present invention; Figure 5 This is the present invention. Figure 4 Enlarged view of a section at point A in the middle; Figure 6 This is a schematic diagram of the dry mixing and crushing module of the present invention; Figure 7 This is a front view of the dry mixing and crushing module of the present invention; Figure 8 This is a schematic diagram of the open structure of the dry mixing and crushing module of the present invention; Figure 9 This is a cross-sectional view of the dry mixing and crushing module of the present invention; Figure 10 This is a schematic diagram of the internal structure of the dry mixing and crushing module of the present invention; Figure 11 This is a schematic diagram of the internal structure of the dry-mix cleaning system of the present invention; Figure 12 This is the present invention. Figure 11 Enlarged view of a section at point B in the middle; Figure 13 This is a schematic diagram of the dry-mix cleaning structure of the present invention; Figure 14 This is a schematic diagram of the wet mixing and dispersing module structure of the present invention; Figure 15 This is a cross-sectional view of the wet mixing and dispersing module of the present invention; Figure 16 This is an assembly diagram of the wet-mixing cleaning structure of the present invention; Figure 17 This is the present invention. Figure 16 Enlarged view of a section at point C; Figure 18 This is an assembly diagram of the vibration module structure of the present invention; Figure 19 This is a process flow diagram of the present invention; Figure 20 This is a flowchart of the molding and curing process of this invention.

[0017] In the diagram: 1. Base; 2. Support column; 3. Pretreatment module; 4. Feed pipe; 5. Dry mixing and crushing module; 6. Wet mixing and dispersing module; 7. Standard box; 8. Vibration module; 31. Pretreatment box; 32. First drive motor; 33. Tilting shaft; 34. Multifunctional pretreatment plate; 35. Vibrating plate; 36. Pressure sensor; 37. Temperature control rod; 38. Display; 39. Tilting cover; 51. Dry mixing box; 52. Second drive motor; 53. Dry mixing stirring rod; 54. Dry mixing cleaning box; 55. Crushing and cutting blade; 56. Third drive motor; 57. Dry mixing cleaning plate; 58. Fourth drive motor; 59. Dry mixture output pipe; 61. Wet mixing box; 62. Fifth drive motor; 63. Wet mixing stirring rod; 64. Wet mixing cleaning box; 65. Wet mixing rod; 66. Sixth drive motor; 67. Wet mixing cleaning plate; 68. Seventh drive motor; 69. Wet mixture conveyor. 81. Outlet pipe; 82. Vibration base frame; 83. Vertical telescopic shaft; 84. Horizontal telescopic shaft; 85. Handle; 86. Vibration frame; 311. Vibrating rod; 312. Discharge port; 313. Distributor plate; 341. Arc-shaped baffle; 351. Flexible sealing cloth; 352. Pretreatment vibrator; 511. Air inlet connection port; 531. Dry mixing connection frame; 561. Dry mixing cleaning screw; 562. Dry mixing cleaning slide plate; 571. 572. Dry-mix cleaning spring storage shaft; 573. Dry-mix cleaning sealing plate; 574. Cleaning brush; 581. Air blower; 611. Dry-mix separation plate; 631. Water inlet connection; 632. Wet-mix connection frame; 661. Wet-mix cleaning screw; 662. Wet-mix cleaning slide plate; 671. Wet-mix cleaning spring storage shaft; 672. Wet-mix cleaning sealing plate; 673. Cleaning scraper; 674. Water spray nozzle; 681. Wet-mix separation plate. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Example 1

[0020] like Figure 1 and Figure 13As shown in one embodiment of the present invention, a high-efficiency preparation device for a curing agent based on anhydrite includes a base 1, a support column 2 mounted on the upper part of the base 1, a pretreatment module 3 disposed on the upper part of the support column 2, a feed pipe 4 mounted on the side of the pretreatment module 3, a dry mixing and crushing module 5 for the first mixing operation mounted on the side of the feed pipe 4, a wet mixing and dispersing module 6 for the second mixing operation connected to the bottom of the dry mixing and crushing module 5, a standard box 7 placed at the bottom of the wet mixing and dispersing module 6, and a vibration module 8 mounted on the side of the standard box 7; the pretreatment module 3 includes a pretreatment box 31, a multifunctional pretreatment plate 34 disposed inside the pretreatment box 31, and a multifunctional pretreatment plate 34 mounted on the upper side of the side of the multifunctional pretreatment plate 34. The pretreatment box 34 is equipped with an arc-shaped baffle 341, which is inserted into the inner wall of the pretreatment box 31. A vibrating plate 35 is installed inside the multi-functional pretreatment plate 34. A flexible sealing cloth 351 is provided around the vibrating plate 35. A pretreatment vibrator 352 is installed at the bottom of the vibrating plate 35. A pressure sensor 36 is installed inside the vibrating plate 35. A temperature control rod 37 is provided on the upper part of the vibrating plate 35. The dry mixing crushing module 5 includes a dry mixing box 51. A dry mixing cleaning box 54 is provided inside the dry mixing box 51. A dry mixing cleaning plate 57 is installed inside the dry mixing cleaning box 54. A dry mixing cleaning sealing plate 572 is provided at the top of the dry mixing cleaning plate 57. A cleaning brush 573 and an air outlet 574 are provided on the upper part of the dry mixing cleaning plate 57.

[0021] Furthermore, the operators put various raw materials into the compartments of the pretreatment box 31 respectively. The controller 313 controls the temperature control rod 37 to continuously heat and keep the material warm. The temperature control rod 37 is inserted into the raw material to achieve full contact between the raw material and the temperature control rod 37. The raw material is placed in an environment of 45°C for 24 hours to dry. During the drying process, the pretreatment vibrator 352 is controlled to vibrate intermittently, thereby achieving full contact between the raw material and the temperature control rod 37 and achieving a thorough drying effect, ensuring that the moisture content of the raw material is ≤0.5%. When feeding the material, the feeding ratio is controlled by the pressure sensor 36 and the display 38, and the material is fed in the following mass ratio: 5-15% gypsum, 60-80% cement, and 10-25% slag.

[0022] After drying is completed, the first drive motor 32 is started to drive the flipping shaft 33 and the multi-functional pretreatment plate 34 to rotate in sequence. The arc-shaped baffle 341 on the upper part of the multi-functional pretreatment plate 34 prevents the raw material from leaking out during the rotation. The rotation continues until the discharge port 311 is completely discharged. The raw material enters the dry mixing and crushing module 5 along the discharge port 311 and the feed pipe 4 to start the first mixing. The second drive motor 52 drives the dry mixing stirring rod 53 and the crushing cutter 55 to work. The crushing cutter 55 fully cuts and breaks up the hardened and solidified raw material. During the material conveying process, the dry mixing cleaning box 54 starts to work. The third drive motor 56 starts to drive the dry mixing cleaning plate 57 to move out and open under the action of the dry mixing cleaning spring receiving shaft 571. At this time, the cleaning brush 573 and the air blowing port 574 start to clean the inner wall and remove the adsorbed raw material.

[0023] Example 2

[0024] like Figures 2 to 5 As shown, in one embodiment of the present invention, a high-efficiency preparation device for a curing agent based on anhydrite is provided. Based on Embodiment 1, the pretreatment box 31 has a discharge port 311 at the bottom of its side, a material distribution plate 312 inside the pretreatment box 31, a controller 313 on the outside of the pretreatment box 31, a first drive motor 32 on the outside of the pretreatment module 3, a flip shaft 33 connected to the output end of the first drive motor 32, a multi-functional pretreatment plate 34 on the flip shaft 33, a display 38 on the upper part of the outside of the pretreatment box 31, and a flip cover 39 on the top of the pretreatment box 31.

[0025] like Figures 6 to 13 As shown, the dry mixing chamber 51 has an air inlet 511 on its exterior. A second drive motor 52 is mounted on the upper part of the dry mixing chamber 51. A dry mixing stirring rod 53 is connected to the output end of the second drive motor 52. A dry mixing connecting frame 531 is connected to the upper part of the dry mixing stirring rod 53. A dry mixing cleaning box 54 is connected to the front end of the dry mixing connecting frame 531. A pulverizing cutter 55 is installed at the front end of the dry mixing cleaning box 54. A third drive motor 56 is installed inside the dry mixing cleaning box 54. The output end is connected to a dry mixing cleaning screw 561, and a dry mixing cleaning slide plate 562 is sleeved on the dry mixing cleaning screw 561. A dry mixing cleaning spring storage shaft 571 is installed at the front end of the dry mixing cleaning slide plate 562, and dry mixing cleaning plates 57 are provided on both sides of the dry mixing spring storage shaft 571. A dry mixing separation plate 581 is provided on the bottom side inside the dry mixing box 51, and a fourth drive motor 58 is installed on the outside of the dry mixing separation plate 581. A dry mixing material output pipe 59 is provided at the bottom of the dry mixing separation plate 581.

[0026] like Figures 14 to 17As shown, the wet mixing and dispersing module 6 includes a wet mixing chamber 61. The wet mixing chamber 61 has an external water inlet 611. A fifth drive motor 62 is mounted on the upper part of the wet mixing chamber 61. A wet mixing stirring rod 63 is connected to the output end of the fifth drive motor 62. A wet mixing connecting frame 631 is connected to the upper part of the wet mixing stirring rod 63. A water outlet 632 is located at the top of the wet mixing stirring rod 63. A wet mixing cleaning box 64 is connected to the front end of the wet mixing connecting frame 631. A wet mixing rod 65 is installed at the front end of the wet mixing cleaning box 64. A sixth drive motor 66 is located inside the wet mixing cleaning box 64. The output end of the sixth drive motor 66 is connected to a wet mixing rod 65. A wet mixing and cleaning screw 661 is provided, and a wet mixing and cleaning slide plate 662 is sleeved on the wet mixing and cleaning screw 661. A wet mixing and cleaning spring storage shaft 671 is installed at the front end of the wet mixing and cleaning slide plate 662. Wet mixing and cleaning plates 67 are provided on both sides of the wet mixing and cleaning spring storage shaft 671. A wet mixing and cleaning sealing plate 672 is provided at the top of the wet mixing and cleaning plate 67. A cleaning scraper 673 and a water spray nozzle 674 are provided on the upper part of the wet mixing and cleaning plate 67. A wet mixing separation plate 681 is provided on the bottom side inside the wet mixing box 61. A seventh drive motor 68 is installed on the outside of the wet mixing separation plate 681. A wet mixing material output pipe 69 is provided at the bottom of the wet mixing separation plate 681.

[0027] like Figure 1 , Figure 2 and Figures 18 to 20 As shown, the vibration module 8 includes a vibration base 81, a vertical telescopic shaft 82 is mounted on the upper part of the vibration base 81, a horizontal telescopic shaft 83 is provided on the upper part of the vertical telescopic shaft 82, a vibration frame 85 is provided at the front end of the horizontal telescopic shaft 83, a handle 84 is provided on the upper part of the vibration frame 85, and a vibrating rod 86 is provided at the bottom of the vibration frame 85.

[0028] Further, in the first mixing, the first drive motor 32 is started to drive the flipping shaft 33 and the multi-functional pretreatment plate 34 to rotate in sequence, and the arc-shaped baffle 341 on the upper part of the multi-functional pretreatment plate 34 prevents the raw materials from leaking out during the rotation. The rotation continues until the discharge port 311 is completely discharged. The raw materials enter the dry mixing and crushing module 5 along the discharge port 311 and the feed pipe 4 to start the first mixing. The second drive motor 52 drives the dry mixing stirring rod 53 and the crushing cutter 55 to work. The crushing cutter 55 fully cuts and breaks up the hardened and solidified raw materials. During the material conveying process, the dry mixing cleaning box 54 starts to work. The third drive motor 56 starts to drive the dry mixing cleaning plate 57 to move out and open under the action of the dry mixing cleaning spring receiving shaft 571. At this time, the cleaning brush 573 and the air blowing port 574 start to clean the inner wall and remove the adsorbed raw materials.

[0029] Further, in the second mixing, water is added to the wet mixing dispersion module 6, with a water-to-gelling main material mass ratio of 0.4:1, and stirred into a slurry. The fifth drive motor 62 drives the wet mixing stirring rod 63 to stir the raw materials. After adding water, slow stirring, settling, and fast stirring are performed in sequence. The slow stirring operation lasts for 120±5 seconds at a speed of 60 rpm, the settling operation lasts for 15±2 seconds, and the fast stirring operation lasts for 120±5 seconds at a speed of 120 rpm. After thorough mixing, the material is discharged and the mixed slurry is injected into the standard box 7. During the material discharge process, the sixth drive motor 66 is started, and the sixth drive motor 66 drives the wet mixing cleaning sealing plate 672 at the top of the wet mixing cleaning plate 67 to scrape down the slurry adsorbed on the inner wall, so that all the slurry is fully removed.

[0030] Example 3

[0031] like Figures 1 to 20 As shown, in one embodiment of the present invention, a method for preparing a curing agent based on anhydrite is provided. Based on Examples 1 and 2, the operator pre-treats the raw materials before preparing the curing agent. The operator puts various raw materials into the respective compartments of the pre-treatment box 31. The controller 313 controls the temperature control rod 37 to continuously heat and maintain the temperature. The temperature control rod 37 is inserted into the raw materials to achieve full contact between the raw materials and the temperature control rod 37. The raw materials are placed in an environment of 45°C to dry for 24 hours. During the drying process, the pre-treatment vibrator 352 is controlled to vibrate intermittently, thereby achieving full contact between the raw materials and the temperature control rod 37, achieving the effect of full drying, and ensuring that the moisture content of the raw materials is ≤0.5%. When feeding the materials, the feeding ratio is controlled by the pressure sensor 36 and the display 38, and the materials are fed in a mass ratio of 5-15% anhydrite, 60-80% cement, and 10-25% slag.

[0032] After drying is completed, the first drive motor 32 is started to drive the flipping shaft 33 and the multi-functional pretreatment plate 34 to rotate in sequence. The arc-shaped baffle 341 on the upper part of the multi-functional pretreatment plate 34 prevents the raw material from leaking out during the rotation. The rotation continues until the discharge port 311 is completely discharged. The raw material enters the dry mixing and crushing module 5 along the discharge port 311 and the feed pipe 4 to start the first mixing. The second drive motor 52 drives the dry mixing stirring rod 53 and the crushing cutter 55 to work. The crushing cutter 55 fully cuts and breaks up the hardened and solidified raw material. During the material conveying process, the dry mixing cleaning box 54 starts to work. The third drive motor 56 starts to drive the dry mixing cleaning plate 57 to move out and open under the action of the dry mixing cleaning spring receiving shaft 571. At this time, the cleaning brush 573 and the air blowing port 574 start to clean the inner wall and remove the adsorbed raw material.

[0033] After the first mixing is completed, the raw materials are transferred to the wet mixing and dispersion module 6 for the second mixing. Water is added to the module, with a water-to-gelling main material mass ratio of 0.4:1. The mixture is stirred into a slurry. The fifth drive motor 62 drives the wet mixing stirring rod 63 to stir the raw materials. After adding water, slow stirring, settling, and fast stirring are performed in sequence. The slow stirring operation lasts for 120±5 seconds at a speed of 60 rpm, the settling operation lasts for 15±2 seconds, and the fast stirring operation lasts for 120±5 seconds at a speed of 120 rpm. After thorough mixing, the mixture is poured into the standard box 7. During the pouring process, the sixth drive motor 66 is started. The sixth drive motor 66 drives the wet mixing cleaning sealing plate 672 at the top of the wet mixing cleaning plate 67 to scrape down the slurry adsorbed on the inner wall and remove all the slurry.

[0034] After thorough mixing, the mixed slurry is injected into the standard box 7 and compacted by light vibration using the vibration module 8. The vibrator 86 is inserted into the standard box 7 by adjusting the vertical telescopic shaft 82 and the horizontal telescopic shaft 83 in the vibration module 8. The slurry is injected in two stages. The first stage is injected to 2 / 3 of the height of the standard box 7. Then, initial vibration is performed by inserting the Φ3 mm vibrator 86 and vibrating it spirally along the edge of the standard box 7 20 times at a frequency of 3 times / second and an amplitude of 1-2 mm. Then, the standard box 7 is filled with slurry and final vibration is performed by vibrating it 15 times. The vibrator 86 is inserted to the bottom. Finally, excess slurry is scraped off to ensure that the flatness error of the end face is ≤0.1 mm.

[0035] After the material is unloaded, the standard box 7 is removed and the final self-cleaning operation begins. The wet mixing cleaning box 64 starts operating, with the same operating principle as the dry mixing cleaning box 54. The cleaning scraper 673 and the water spray nozzle 674 start operating, spraying cleaning water to scrape off the slurry adsorbed on the inner wall.

[0036] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency preparation device for a curing agent based on anhydrite, the device comprising a base (1), a support column (2) mounted on the upper part of the base (1), and a pretreatment module (3) disposed on the upper part of the support column (2), characterized in that, The pretreatment module (3) is equipped with a feed pipe (4) on its side. The feed pipe (4) is equipped with a dry mixing and crushing module (5) for the first mixing operation. The dry mixing and crushing module (5) is connected to a wet mixing and dispersing module (6) for the second mixing operation at its bottom. A standard box (7) is placed at the bottom of the wet mixing and dispersing module (6). A vibration module (8) is installed on the side of the standard box (7). The pretreatment module (3) includes a pretreatment box (31), inside which a multifunctional pretreatment plate (34) is provided. An arc-shaped baffle (341) is installed on the upper side of the multifunctional pretreatment plate (34), and the arc-shaped baffle (341) is inserted into the inner wall of the pretreatment box (31). A vibration plate (35) is installed inside the multifunctional pretreatment plate (34), and a flexible sealing cloth (351) is provided around the vibration plate (35). A pretreatment vibrator (352) is installed at the bottom of the vibration plate (35), and a pressure sensor (36) is provided inside the vibration plate (35). A temperature control rod (37) is provided on the upper part of the vibration plate (35). The dry mixing crushing module (5) includes a dry mixing box (51), a dry mixing cleaning box (54) is provided inside the dry mixing box (51), a dry mixing cleaning plate (57) is installed inside the dry mixing cleaning box (54), a dry mixing cleaning sealing plate (572) is provided at the top of the dry mixing cleaning plate (57), and a cleaning brush (573) and an air outlet (574) are provided on the upper part of the dry mixing cleaning plate (57). The dry mixing box (51) is provided with an air inlet (511) on the outside. A second drive motor (52) is provided on the upper part of the dry mixing box (51). A dry mixing stirring rod (53) is connected to the output end of the second drive motor (52). A dry mixing connecting frame (531) is connected to the upper part of the dry mixing stirring rod (53). A dry mixing cleaning box (54) is connected to the front end of the dry mixing connecting frame (531). A crushing and cutting blade (55) is installed at the front end of the dry mixing cleaning box (54). A third drive motor (56) is provided inside the dry mixing cleaning box (54). A dry mixing cleaning screw (561) is connected to the output end of the third drive motor (56). A dry mixing cleaning slide plate (562) is sleeved on the dry mixing cleaning screw (561). A dry mixing cleaning spring storage shaft (571) is installed at the front end of the dry mixing cleaning slide plate (562). Dry mixing cleaning plates (57) are provided on both sides of the dry mixing cleaning spring storage shaft (571). The wet mixing and dispersing module (6) includes a wet mixing box (61), with a water inlet (611) on the outside of the wet mixing box (61). A fifth drive motor (62) is provided on the upper part of the wet mixing box (61). A wet mixing stirring rod (63) is connected to the output end of the fifth drive motor (62). A wet mixing connecting frame (631) is connected to the upper part of the wet mixing stirring rod (63). A water outlet (632) is provided at the top of the wet mixing stirring rod (63). A wet mixing cleaning box (64) is connected to the front end of the wet mixing connecting frame (631).

2. The high-efficiency preparation device for a hardening agent based on anhydrite according to claim 1, characterized in that: The pretreatment box (31) has a discharge port (311) at the bottom of its side. The pretreatment box (31) has a material distribution plate (312) inside. The pretreatment box (31) has a controller (313) installed on its outside. The pretreatment module (3) has a first drive motor (32) installed on its outside. The output end of the first drive motor (32) is connected to a flip shaft (33). A multi-functional pretreatment plate (34) is installed on the flip shaft (33).

3. The high-efficiency preparation device for a curing agent based on anhydrite according to claim 2, characterized in that: A display (38) is provided on the upper part of the outer side of the pretreatment box (31), and a flip cover (39) is installed on the top of the pretreatment box (31).

4. The high-efficiency preparation device for a hardening agent based on anhydrite according to claim 3, characterized in that, The dry mixing box (51) is provided with a dry mixing separation plate (581) on the bottom side inside. A fourth drive motor (58) is installed on the outside of the dry mixing separation plate (581). A dry mixing output pipe (59) is provided at the bottom of the dry mixing separation plate (581).

5. The high-efficiency preparation device for a hardening agent based on anhydrite according to claim 4, characterized in that, The wet mixing cleaning box (64) is equipped with a wet mixing rod (65) at the front end, and a sixth drive motor (66) is installed inside the wet mixing cleaning box (64).

6. The high-efficiency preparation device for a hardening agent based on anhydrite according to claim 5, characterized in that, The output end of the sixth drive motor (66) is connected to a wet mixing cleaning screw (661). A wet mixing cleaning slide plate (662) is sleeved on the wet mixing cleaning screw (661). A wet mixing cleaning spring storage shaft (671) is installed at the front end of the wet mixing cleaning slide plate (662). A wet mixing cleaning plate (67) is provided on both sides of the wet mixing cleaning spring storage shaft (671). A wet mixing cleaning sealing plate (672) is provided at the top of the wet mixing cleaning plate (67). A cleaning scraper (673) and a water spray nozzle (674) are provided on the upper part of the wet mixing cleaning plate (67). A wet mixing separation plate (681) is provided on the bottom side inside the wet mixing box (61). A seventh drive motor (68) is installed on the outside of the wet mixing separation plate (681). A wet mixing material output pipe (69) is provided at the bottom of the wet mixing separation plate (681).

7. The high-efficiency preparation device for a hardening agent based on anhydrite according to claim 6, characterized in that, The vibration module (8) includes a vibration base (81), a vertical telescopic shaft (82) is installed on the upper part of the vibration base (81), a horizontal telescopic shaft (83) is provided on the upper part of the vertical telescopic shaft (82), a vibration frame (85) is provided at the front end of the horizontal telescopic shaft (83), a handle (84) is provided on the upper part of the vibration frame (85), and a vibrating rod (86) is provided at the bottom of the vibration frame (85).

8. A method for preparing a hardener based on anhydrite, characterized in that, The specific steps of the high-efficiency preparation device for hardening agent based on anhydrite as described in claim 7 are as follows: S1. Raw material pretreatment: The raw materials are put into each compartment of the pretreatment box (31) and the environment inside the pretreatment box (31) is kept at 45°C. The raw materials are dried for 24 hours and the moisture content is ≤0.5%. The raw materials include anhydrite, cement and slag. The anhydrite is industrial grade anhydrous gypsum with a fineness ≥200 mesh and an SO3 content ≥50%. The slag is S95 grade blast furnace slag with a specific surface area ≥400 m² / kg and a CaO content of 30-40%. S2. According to the proportion, the pressure sensor (36) in the multi-functional pretreatment plate (34) collects the quality information of each raw material, and puts the dried raw materials into the dry mixing and crushing module (5) according to a certain proportion. The mass percentage composition of the configuration is: 5-15% anhydrite; 60-80% cement; 10-25% slag. S3. Double mixing: The first mixing is carried out in the dry mixing and crushing module (5). The crushing cutter (55) performs dry mixing and crushing for 10 seconds. Then, the second mixing is carried out in the wet mixing and dispersing module (6). The wet mixing rod (65) performs wet mixing and dispersing. Water is added to the wet mixing and dispersing module (6) during mixing. The mass ratio of water to the mixed raw materials is 0.4:

1. The mixture is stirred into a slurry. The second mixing is divided into slow mixing, standing and fast mixing operations. The slow mixing operation lasts for 120±5 seconds and the speed is 60 rpm. The standing operation lasts for 15±2 seconds. The fast mixing operation lasts for 120±5 seconds and the speed is 120 rpm. S4. Molding and curing: Inject the slurry into the standard box (7) in two stages. First, inject the slurry into the standard box (7) to 2 / 3 of its height. Then, perform initial vibration by inserting a Φ3 mm vibrator (86) and vibrating it spirally along the edge of the standard box (7) 20 times at a frequency of 3 times / second and an amplitude of 1-2 mm. Then, fill the standard box (7) with slurry and perform final vibration by vibrating it 15 times. The vibrator (86) should be inserted to the bottom. Finally, scrape off the excess slurry to ensure that the flatness error of the end face is ≤0.1 mm. S5. Self-cleaning: After the first mixing in step S3, the cleaning brush (573) and air blower (574) in the dry mixing cleaning plate (57) start to clean the inner wall and remove the adsorbed raw materials. The air blower (574) introduces 0.5 MPa compressed air to maximize the utilization of the raw materials. After the second mixing in step S3, the cleaning scraper (673) in the wet mixing cleaning plate (67) starts to scrape the slurry adsorbed on the inner wall and remove the slurry. Finally, after completing step S4, the water spray nozzle (674) in the wet mixing cleaning plate (67) also starts to clean the adhering substances on the inner wall.

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