Low-temperature curing process and equipment for organic binder of magnesia dry material

Abstract

This invention relates to the field of refractory material preparation technology, and in particular to a low-temperature curing process and equipment for organic binders in magnesia dry refractory. The equipment includes a box body and two sets of vertical columns arranged on both sides inside the drying chamber of the box body. Several horizontal columns are also bolted inside the drying chamber of the box body, arranged from top to bottom. This invention uses a drive motor to drive a push-pull rod to reciprocate via a first transmission rod and a crankshaft, which in turn drives the movable rod and rack in the reciprocating roller assembly mechanism to slide back and forth. This causes the transmission shaft to drive the first and second rollers to alternately rotate forward and backward, achieving a small-amplitude reciprocating oscillation of the mold body. This oscillation effectively removes residual air between the dry refractory particles before and in the early stages of curing, promoting particle rearrangement and density, reducing internal pores and loose defects, and making the organic binder distribution more uniform, thereby significantly improving the bulk density and demolding strength of the blank.

Description

Technical Field

[0001] This invention relates to the field of refractory material preparation technology, specifically to a low-temperature curing process and equipment for organic binders in magnesium dry materials. Background Technology

[0002] Organic binders used in magnesia dry-mixed materials (such as thermosetting phenolic resins and dextrin) are mainly used to impart sufficient demolding strength to the preform after room-temperature molding and to form a carbon bonding network with residual carbon during high-temperature service, improving erosion resistance and thermal shock resistance. To ensure that these binders function effectively, a low-temperature curing process is commonly used: the vibrated and compacted material, along with the mold, is placed in an oven and kept at 150–300°C to allow the organic binder to cross-link and harden. There are two key reasons for using low temperature: First, magnesia sand readily undergoes a hydration reaction with water, and the volume expansion can lead to cracking. The organic binder releases trace amounts of moisture during the curing process, or the raw material itself absorbs moisture. Low-temperature, slow heating allows moisture to be gradually expelled without causing severe hydration. Second, organic binders decompose or soften too quickly at excessively high temperatures, losing their binding function. Low temperature ensures gradual hardening, avoiding thermal stress concentration and structural inhomogeneity, allowing the dry-mixed material to achieve good density and stable early strength. The "low temperature" here is relative to the high-temperature baking and service temperature of the dry material (such as baking the tundish to 1000-1200℃, and reaching above 1500℃ when in contact with molten steel), and the high-temperature sintering temperature of magnesia (usually above 1600℃). 150-300℃ is only enough for the organic binder to cross-link and harden, which is far from the temperature of material sintering or high-temperature carbonization and ceramic bonding. Therefore, it is called low-temperature curing process.

[0003] During curing, the mold is placed directly in the oven, and the hot air is designed to circulate from top to bottom. However, due to the obstruction of the mold's side walls and bottom plate, and the close contact between the bottom and the oven's flat plate or grid, the hot air cannot directly wash over the bottom of the mold. This results in the bottom of the mold being almost in a stagnant zone, relying mainly on heat conduction and radiation from the surrounding area to slowly heat up. This creates a situation where the upper part is heated first, while the lower part heats up later. The actual effect of this arrangement is that the organic binder in the upper part cures and sets first, while the bottom remains at a lower temperature. The water vapor and volatiles generated by the curing reaction can escape smoothly from the openings on the top surface. If the bottom cures first and blocks the pores, the internal vapor pressure will accumulate, leading to bulging, delamination, or even cracking. Summary of the Invention

[0004] The purpose of this invention is to provide a low-temperature curing process and equipment for organic binders used in magnesium dry materials, which can induce slight shaking of the mold.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a low-temperature curing process for an organic binder in magnesium dry materials, the process comprising the following steps: Step S1: After cleaning the surface of the steel mold, apply a release agent, hoist the mold into the tundish and position it, and adjust the gap between the mold and the permanent layer of the tundish to make it uniform and symmetrical. Step S2: Evenly add magnesium dry material around the mold, compacting it as you add it. After adding the material, start the vibration motor and vibrate for 3-5 minutes to ensure the dry material is densely filled. Step S3: Transfer the mold with the dry material layer into the low-temperature curing oven, raise the internal temperature of the oven to 150-350℃ at a heating rate of 1-3℃ / min, and keep it at the temperature for 2-3 hours for curing. Step S4: During the heat preservation and curing stage, the gas inside the oven is circulated and disturbed, and air is blown into the area below the mold to allow the hot airflow to wash the bottom surface of the mold. While blowing air, the mold is made to swing back and forth in the horizontal direction. Step S5: During the heat preservation and curing stage, the volatile gases released by the organic binder during the curing process are discharged outside the oven. Step S6: After the heat preservation and curing are completed, air cooling is performed. Demolding is carried out when the mold temperature drops below 100℃.

[0006] Preferably, in step S3, the heating rate is 2℃ / min, the curing temperature is 250~300℃, and the heat preservation curing time is 2.5h.

[0007] Preferably, in step S4, the gas used for blowing is hot gas inside the oven, which is collected by the gas collecting hood and then transported to the jet nozzle below the mold through the air guide pipe. The swing amplitude of the reciprocating swing motion is 5-15mm, and the swing frequency is 0.5-3Hz.

[0008] A low-temperature curing device for organic binders in magnesium dry materials, comprising a housing, and further comprising: There are two sets of vertical columns, which are set on both sides inside the oven cavity. There are also several horizontal columns bolted inside the oven cavity. The horizontal columns are arranged from top to bottom. The interior of the vertical columns and the horizontal columns are hollow and interconnected. The mold body has connecting shafts welded to both ends of its lower mold. A repetitive roller assembly mechanism includes a first roller, a vertical plate, a second roller, and a transmission component. The surface of the transverse column is provided with a notch, and the first roller, the vertical plate, and the second roller are all located at the notch on the surface of the transverse column. There are two sets of the first rollers, which are rotatably connected to the transverse column. The vertical plate is bolted to the inside of the transverse column. The second roller is rotatably connected to the surface of the vertical plate, and the first roller and the second roller cooperate to provide rotation conditions for the connecting shaft. The power mechanism, in conjunction with the transmission assembly, drives the first roller to alternately rotate forward and backward. The reciprocating pump-type air delivery mechanism uses the power of the transmission component to blow the hot air inside the box towards the bottom of the mold body.

[0009] Preferably, the transmission assembly consists of a movable rod, a rack, a push-pull rod, and a transmission shaft. The number of racks is several and they are bolted to the surface of the movable rod. The transmission shaft is connected to the rotating shaft of the first roller via gear transmission. The racks are connected to the transmission shaft via toothed gear transmission. The push-pull rod is rotatably connected to the end of the movable rod.

[0010] Preferably, the power mechanism comprises a drive motor, a first bearing housing, a first transmission rod, a crankshaft, and a second bearing housing. The first bearing housing is bolted to a cavity below the housing, and the second bearing housing is bolted to the inner wall of the vertical column. The crankshaft is rotatably connected to the second bearing housing. There are two sets of crankshafts, which are connected to the first transmission rod via bevel gear transmission. The output shaft of the drive motor is connected to the first transmission rod via gear transmission. The end of the push-pull rod away from the movable rod is rotatably connected to the crankshaft.

[0011] Preferably, the reciprocating pump-type air delivery mechanism includes a cylinder, a movable column, and a piston. The cylinder is bolted to the inside of the transverse column, and the piston is slidably connected to the inner wall of the cylinder. One end of the movable column is bolted to the movable rod, and the other end of the movable column is fixed to the piston. One end of the cylinder is respectively connected to an inlet end and an outlet end. The inner walls of the inlet end and the outlet end are respectively hinged with a first one-way cover and a second one-way cover. The inlet end is connected to an inlet pipe, and the outlet end is connected to an air delivery pipe. The surface of the air delivery pipe is connected to a plurality of air outlets.

[0012] Preferably, an air intake hood is also connected to the side of the inlet pipe away from the inlet end.

[0013] Preferably, the first one-way cover can only be opened toward the interior of the cylinder, and the second one-way cover can only be opened toward the direction away from the interior of the cylinder.

[0014] Preferably, a slide rail is bolted inside the transverse column, and the movable rod is slidably connected to the surface of the slide rail.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention drives a push-pull rod to reciprocate via a drive motor, a first transmission rod, and a crankshaft. This, in turn, drives the movable rod and rack in the reciprocating roller assembly mechanism to slide back and forth. The transmission shaft drives the first and second rollers to alternately rotate forward and backward, achieving a small-amplitude reciprocating oscillation of the mold body. This oscillation can effectively expel residual air between dry material particles before and in the early stage of curing, promote particle rearrangement and densification, reduce internal pores and loose defects, and make the organic binder more evenly distributed, thereby significantly improving the bulk density and demolding strength of the blank.

[0016] 2. This invention utilizes the reciprocating motion of the movable rod to drive the movable column and piston to move within the cylinder. When the piston moves backward, a negative pressure is formed inside the cylinder, and external hot air is drawn in through the air inlet hood and inlet pipe, opening the first one-way cover. When the piston moves forward, the first one-way cover closes, and the hot air pushes open the second one-way cover and enters the air supply pipe through the outlet end. Finally, it is forced to be blown towards the bottom of the mold body by each air outlet. This forced airflow circulation breaks the stagnant area at the bottom of the mold, compensates for its defect of delayed heating when stationary, and makes the bottom and top heat up synchronously, ensuring uniform cross-linking and curing of the organic binder. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure in this invention; Figure 2 This is a schematic diagram of the internal structure of the box in this invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the vertical and horizontal columns in this invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A; Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the movable rod and its surrounding structure in this invention; Figure 7 This is a cross-sectional view of the cylinder in this invention; Figure 8 This is a schematic diagram of the structure of the mold body in this invention.

[0018] In the diagram: 100, housing; 200, vertical column; 300, horizontal column; 400, reciprocating pump-type air delivery mechanism; 410, cylinder; 420, movable column; 430, piston; 440, inlet end; 450, first one-way cover; 460, inlet pipe; 461, air inlet hood; 470, outlet end; 480, second one-way cover; 490, air delivery pipe; 491, air outlet nozzle; 500, mold body; 5 10. Connecting shaft; 600. Reciprocating roller assembly mechanism; 610. First roller; 620. Vertical plate; 630. Second roller; 640. Movable rod; 641. Slide rail; 650. Rack; 660. Push-pull rod; 670. Drive shaft; 700. Power mechanism; 710. Drive motor; 720. First bearing housing; 730. First transmission rod; 740. Crankshaft; 750. Second bearing housing. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] A low-temperature curing process for organic binders in magnesium dry materials, the process method comprising the following steps: Step S1: After cleaning the surface of the steel mold, apply a release agent, hoist the mold into the tundish and position it, and adjust the gap between the mold and the permanent layer of the tundish to make it uniform and symmetrical. Step S2: Evenly add magnesium dry material around the mold, compacting it as you add it. After adding the material, start the vibration motor and vibrate for 3-5 minutes to ensure the dry material is densely filled. Step S3: Move the mold with the dry material layer into the low-temperature curing oven. Raise the internal temperature of the oven to 150-350℃ at a heating rate of 1-3℃ / min, and keep it at this temperature for 2-3 hours. The heating rate is 2℃ / min, the curing temperature is 250-300℃, and the curing time is 2.5 hours. Step S4: During the heat preservation and curing stage, the gas inside the oven is circulated and disturbed, and air is blown into the area below the mold to allow the hot airflow to wash the bottom surface of the mold. While blowing air, the mold is made to swing back and forth in the horizontal direction. The gas used for blowing air is the hot gas inside the oven. After being collected by the gas collection hood, it is delivered to the air nozzle below the mold through the air guide pipe and sprayed out. The swing amplitude of the back and forth swinging motion is 5-15mm, and the swing frequency is 0.5-3Hz. Step S5: During the heat preservation and curing stage, the volatile gases released by the organic binder during the curing process are discharged outside the oven. Step S6: After the heat preservation and curing are completed, air cooling is performed. Demolding is carried out when the mold temperature drops below 100℃.

[0021] Please see Figures 1-8 As shown, a low-temperature curing device for organic binders in magnesium dry materials is a low-temperature curing oven, which includes a chamber 100. The curing device also includes vertical columns 200, a mold body 500, a reciprocating roller assembly mechanism 600, a power mechanism 700, and a reciprocating pump-type air supply mechanism 400. Two sets of vertical columns 200 are arranged on both sides inside the drying cavity of the chamber 100. Several horizontal columns 300 are bolted inside the drying cavity of the chamber 100, arranged from top to bottom. Both the vertical columns 200 and the horizontal columns 300 are hollow and interconnected. Connecting shafts 510 are welded to both ends of the lower mold of the mold body 500. The reciprocating roller assembly mechanism 600 includes a first roller 610 and a vertical plate 62. 0. The second roller 630 and the transmission assembly, the surface of the transverse column 300 is provided with a notch, and the first roller 610, the vertical plate 620 and the second roller 630 are all located at the notch on the surface of the transverse column 300. There are two sets of first rollers 610 and they are rotatably connected to the transverse column 300. The vertical plate 620 is bolted to the inside of the transverse column 300. The second roller 630 is rotatably connected to the surface of the vertical plate 620, and the first roller 610 and the second roller 630 cooperate to provide rotation conditions for the connecting shaft 510. The power mechanism 700 cooperates with the transmission assembly to drive the first roller 610 to alternately rotate forward and backward. The reciprocating pump-type air delivery mechanism 400 uses the power of the transmission assembly to blow the hot air inside the box 100 to the bottom of the mold body 500.

[0022] Specifically, the transmission assembly consists of a movable rod 640, a rack 650, a push-pull rod 660, and a transmission shaft 670. There are several racks 650 and they are bolted to the surface of the movable rod 640. The transmission shaft 670 is connected to the rotating shaft of the first roller 610 through gear transmission. The racks 650 and the transmission shaft 670 are connected through toothed gear transmission. The push-pull rod 660 is rotatably connected to the end of the movable rod 640. A slide rail 641 is also bolted inside the transverse column 300. The movable rod 640 is slidably connected to the surface of the slide rail 641, which allows the movable rod 640 to slide back and forth along the surface of the slide rail 641, increasing the running stability of the movable rod 640.

[0023] Furthermore, the power mechanism 700 consists of a drive motor 710, a first bearing housing 720, a first transmission rod 730, a crankshaft 740, and a second bearing housing 750. The first bearing housing 720 is bolted to the cavity below the housing 100, and the second bearing housing 750 is bolted to the inner wall of the vertical column 200. The crankshaft 740 is rotatably connected to the second bearing housing 750. There are two sets of crankshafts 740, which are connected to the first transmission rod 730 via bevel gear transmission. The output shaft of the drive motor 710 is connected to the first transmission rod 730 via gear transmission. The end of the push-pull rod 660 away from the movable rod 640 is rotatably connected to the crankshaft 740.

[0024] During use, the mold body 500, along with the internal material, is placed inside the drying cavity of the box 100, so that the connecting shaft 510 contacts the first roller 610 and the second roller 630. The recesses formed between the two sets of first rollers 610 provide rotation conditions for the connecting shaft 510, while the second roller 630 prevents the connecting shaft 510 from shifting. During the curing process, the drive motor 710 is turned on, causing its output shaft to rotate slowly. The output shaft drives the first transmission rod 730 to rotate through gears. The first transmission rod 730 drives the crankshaft 740 to rotate through bevel gears on both sides. The push-pull rod 660 is driven to make a circular motion at one end, which in turn drives the movable rod 640 to make a reciprocating motion. The rack 650 drives the transmission shaft 670 to alternately rotate forward and backward. The transmission shaft 670 drives the first roller 610 to alternately rotate forward and backward through the gear, which in turn drives the connecting rotating shaft 510 to alternately rotate forward and backward. This causes the mold body 500 to swing slightly and shake the mold slightly. This can remove residual air between the dry material particles before or in the early stage of curing, promote particle rearrangement and densification, reduce internal pores and looseness, and make the organic binder more evenly distributed, thereby improving the bulk density and demolding strength of the blank.

[0025] The reciprocating pump-type air delivery mechanism 400 includes a cylinder 410, a movable column 420, and a piston 430. The cylinder 410 is bolted to the inside of the transverse column 300. The piston 430 is slidably connected to the inner wall of the cylinder 410. One end of the movable column 420 is bolted to the movable rod 640, and the other end of the movable column 420 is fixed to the piston 430. One end of the cylinder 410 is respectively connected to an inlet end 440 and an outlet end 470. The inner walls of the inlet end 440 and the outlet end 470 are respectively hinged to... The first one-way cover 450 and the second one-way cover 480 are connected to an inlet pipe 460 at the inlet end 440 and an air supply pipe 490 at the outlet end 470. Several air outlets 491 are connected to the surface of the air supply pipe 490. An air inlet hood 461 is also connected to the side of the inlet pipe 460 away from the inlet end 440 to increase the air intake. The first one-way cover 450 can only be opened to the inside of the cylinder 410, and the second one-way cover 480 can only be opened in the direction away from the inside of the cylinder 410.

[0026] During the reciprocating motion of the movable rod 640, it drives the movable column 420 and piston 430 to reciprocate together. The reciprocating motion of the piston 430 inside the cylinder 410 changes the volume of the cylinder 410 near the inlet end 440. When the piston 430 moves away from the inlet end 440, the volume increases and the pressure decreases. External air enters the cylinder 410 through the air inlet cover 461 and the inlet pipe 460. At this time, the first one-way cover 450 opens and the second one-way cover 480 closes. Then the piston 430 moves towards the inlet end 440, the internal volume decreases and the pressure increases. The first one-way cover 450 closes, so that the internal air passes through the outlet end 470, the second one-way cover 480 and the air supply pipe 490 and is discharged from the air outlet 491, blowing towards the bottom of the mold body 500. The forced airflow blows towards the bottom of the mold, which can compensate for the defect of delayed heating when it is stationary, so that the bottom and the top are heated synchronously, and the organic binder is uniformly cross-linked and cured. This avoids asynchronous curing and internal stress caused by temperature differences between the top and bottom, prevents cracking and deformation, and makes the overall density and demolding strength of the blank more uniform.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-temperature curing process for an organic binder in magnesium dry materials, characterized in that, The process includes the following steps: Step S1: After cleaning the surface of the steel mold, apply a release agent, hoist the mold into the tundish and position it, and adjust the gap between the mold and the permanent layer of the tundish to make it uniform and symmetrical. Step S2: Evenly add magnesium dry material around the mold, compacting it as you add it. After adding the material, start the vibration motor and vibrate for 3-5 minutes to ensure the dry material is densely filled. Step S3: Transfer the mold with the dry material layer into the low-temperature curing oven, raise the internal temperature of the oven to 150-350℃ at a heating rate of 1-3℃ / min, and keep it at the temperature for 2-3 hours for curing. Step S4: During the heat preservation and curing stage, the gas inside the oven is circulated and disturbed, and air is blown into the area below the mold to allow the hot airflow to wash the bottom surface of the mold. While blowing air, the mold is made to swing back and forth in the horizontal direction. Step S5: During the heat preservation and curing stage, the volatile gases released by the organic binder during the curing process are discharged outside the oven. Step S6: After the heat preservation and curing are completed, air cooling is performed. Demolding is carried out when the mold temperature drops below 100℃.

2. The low-temperature curing process for organic binders in magnesium dry materials according to claim 1, characterized in that: In step S3, the heating rate is 2℃ / min, the curing temperature is 250~300℃, and the heat preservation curing time is 2.5h.

3. The low-temperature curing process for organic binders in magnesium dry materials according to claim 1, characterized in that: In step S4, the gas used for blowing is hot gas inside the oven. After being collected by the gas collection hood, it is transported through the air guide pipe to the jet nozzle below the mold and ejected. The swing amplitude of the reciprocating swing motion is 5-15mm, and the swing frequency is 0.5-3Hz.

4. A low-temperature curing device for organic binders in magnesium dry materials, comprising a low-temperature curing oven as described in claim 1, characterized in that, Also includes: Two sets of vertical columns (200) are arranged on both sides inside the drying cavity of the box (100). A horizontal column (300) is also bolted inside the drying cavity of the box (100). There are several horizontal columns (300) arranged from top to bottom. The interiors of the vertical columns (200) and the horizontal columns (300) are hollow and interconnected. The mold body (500) has connecting shafts (510) welded to both ends of its lower mold. A repetitive roller assembly (600) includes a first roller (610), a vertical plate (620), a second roller (630), and a transmission assembly. The surface of the transverse column (300) is provided with a notch, and the first roller (610), the vertical plate (620), and the second roller (630) are all located at the notch on the surface of the transverse column (300). There are two sets of the first rollers (610) and they are rotatably connected to the transverse column (300). The vertical plate (620) is bolted to the inside of the transverse column (300). The second roller (630) is rotatably connected to the surface of the vertical plate (620), and the first roller (610) and the second roller (630) cooperate to provide rotation conditions for the connecting shaft (510). The power mechanism (700), in cooperation with the transmission assembly, drives the first roller (610) to alternately rotate forward and backward; The reciprocating pump-type air delivery mechanism (400) uses the power of the transmission component to blow the hot air inside the housing (100) toward the bottom of the mold body (500).

5. The low-temperature curing equipment for organic binders in magnesium dry materials according to claim 4, characterized in that: The transmission assembly consists of a movable rod (640), a rack (650), a push-pull rod (660), and a transmission shaft (670). There are several racks (650) and they are bolted to the surface of the movable rod (640). The transmission shaft (670) is connected to the rotating shaft of the first roller (610) through gear transmission. The racks (650) are connected to the transmission shaft (670) through toothed gear transmission. The push-pull rod (660) is rotatably connected to the end of the movable rod (640).

6. The low-temperature curing equipment for organic binders in magnesium dry materials according to claim 5, characterized in that: The power mechanism (700) consists of a drive motor (710), a first bearing housing (720), a first transmission rod (730), a crankshaft (740), and a second bearing housing (750). The first bearing housing (720) is bolted to the cavity below the housing (100), and the second bearing housing (750) is bolted to the inner wall of the vertical column (200). The crankshaft (740) is rotatably connected to the second bearing housing (750). There are two sets of crankshafts (740) and they are connected to the first transmission rod (730) via bevel gear transmission. The output shaft of the drive motor (710) is connected to the first transmission rod (730) via gear transmission. The end of the push-pull rod (660) away from the movable rod (640) is rotatably connected to the crankshaft (740).

7. The low-temperature curing equipment for organic binders in magnesium dry materials according to claim 5, characterized in that: The reciprocating pump-type gas delivery mechanism (400) includes a cylinder (410), a movable column (420), and a piston (430). The cylinder (410) is bolted to the inside of the transverse column (300). The piston (430) is slidably connected to the inner wall of the cylinder (410). One end of the movable column (420) is bolted to the movable rod (640), and the other end of the movable column (420) is fixed to the piston (430). The cylinder (410) is bolted to the inside of the transverse column (300). 10) has an inlet end (440) and an outlet end (470) respectively connected to one end. The inner walls of the inlet end (440) and the outlet end (470) are respectively hinged with a first one-way cover (450) and a second one-way cover (480). The inlet end (440) is connected with an inlet pipe (460), and the outlet end (470) is connected with an air supply pipe (490). The surface of the air supply pipe (490) is connected with a plurality of air outlets (491).

8. The low-temperature curing equipment for organic binders in magnesium dry materials according to claim 7, characterized in that: An air intake hood (461) is also connected to the side of the inlet pipe (460) away from the inlet end (440).

9. The low-temperature curing equipment for organic binders in magnesium dry materials according to claim 7, characterized in that: The first one-way cover (450) can only be opened to the inside of the cylinder (410), and the second one-way cover (480) can only be opened in a direction away from the inside of the cylinder (410).

10. A low-temperature curing device for organic binders in magnesium dry materials according to claim 5, characterized in that: The transverse column (300) is also bolted with a slide rail (641), and the movable rod (640) is slidably connected to the surface of the slide rail (641).

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