Method for producing a refractory castable and a pre-treatment device therefor

Abstract

This invention discloses a method for preparing refractory castables and its pretreatment device, relating to the field of refractory castable preparation technology. The method includes a base frame, which is fixedly connected to a fixed frame. The fixed frame is equipped with a pretreatment box mechanism and a first rotating mechanism. The pretreatment box mechanism is equipped with a fixed rolling plate mechanism. The first rotating mechanism is connected to a displacement rolling mechanism. The pretreatment box mechanism is equipped with a pre-impregnation mechanism. The fixed frame is equipped with a mixing box mechanism and a second rotating mechanism, which is connected to a mixing blade mechanism. This invention, by setting the first rotating mechanism, can drive the displacement rolling mechanism to rotate. Combined with the fixed rolling plate mechanism, it can crush and grind the material, while also adjusting the degree of crushing. The pre-impregnation mechanism ensures sufficient contact between the material and the catalyst. Furthermore, the crushed and catalyst-impregnated material can be spread on the pretreatment box mechanism, thereby achieving rapid drying and improving the efficiency of refractory castable preparation.

Description

Technical Field

[0001] This invention relates to the field of refractory castable preparation technology, specifically a method for preparing refractory castable and its pretreatment device. Background Technology

[0002] Refractory castables, as important monolithic refractory materials, are widely used in the lining of high-temperature industrial kilns in metallurgy, building materials, and chemical industries. Their properties (such as strength, erosion resistance, and workability) largely depend on the pretreatment and mixing process of the raw materials. Traditional refractory castable preparation processes typically include crushing aggregates (such as bauxite and corundum), and dry or wet mixing with binders (such as cement and micro-powder) and additives.

[0003] However, existing technologies and equipment have a series of problems affecting efficiency, quality, and cost in this pretreatment and mixing stage:

[0004] The process is fragmented, lengthy, and inefficient: the crushing, screening, impregnation with liquid catalysts (or binder solutions), drying, and final mixing of various dry and wet materials are typically completed step-by-step by multiple independent pieces of equipment (such as jaw crushers, milling mills, dryers, and mixers). Materials need to be frequently transferred between different pieces of equipment, which not only requires a large floor space and consumes a lot of energy, but also results in long production cycles, low efficiency, and difficulty in achieving continuous production.

[0005] Uneven catalyst wetting leads to low utilization and significant waste: In traditional processes, liquid catalysts are often mixed with crushed aggregates by spraying or simple soaking. Spraying easily causes localized overwetting or uneven wetting; simple soaking may result in catalyst enrichment at the bottom of the pile while insufficient at the top. Neither of these methods can achieve uniform, thin-layer adhesion of the catalyst to the particle surface, which not only affects the subsequent reaction effect but also often leads to waste and environmental pollution due to excessive use or loss.

[0006] The crushing and mixing processes suffer from poor controllability and significant product quality fluctuations: Existing crushing equipment (such as roller crushers and hammer crushers) has a limited range for adjusting particle size and is difficult to adjust conveniently during operation. For raw materials requiring specific particle size distributions or surface conditions, repeated crushing and screening are often necessary. The mixing intensity and uniformity of mixing equipment (such as twin-shaft mixers and planetary mixers) are greatly affected by material characteristics. When mixing wet materials impregnated with catalysts with dry powder materials, agglomeration or segregation is likely to occur, leading to batch-to-batch quality instability.

[0007] High energy consumption and difficult environmental control: Drying materials requires independent drying equipment, which consumes a lot of energy. Open or semi-open processes such as crushing, screening, and mixing are prone to generating dust, while catalyst impregnation processes may produce odors or volatile substances, posing a threat to the working environment and the health of operators.

[0008] Therefore, there is an urgent need for a device that can integrate multiple key pretreatment processes such as crushing, controlled impregnation, rapid pre-drying and efficient mixing, and can flexibly adjust process parameters to improve the automation level, production efficiency and product consistency of refractory castable preparation. Summary of the Invention

[0009] This invention provides a method for preparing refractory castables and a pretreatment apparatus thereof, which solves the problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] A pretreatment device for refractory castable includes a base frame, a fixed frame fixedly connected to the base frame, a pretreatment box mechanism and a first rotating mechanism mounted on the fixed frame, a fixed rolling plate mechanism mounted on the pretreatment box mechanism, a displacement rolling mechanism connected to the first rotating mechanism, a pre-impregnation mechanism mounted on the pretreatment box mechanism, a mixing box mechanism and a second rotating mechanism mounted on the fixed frame, the second rotating mechanism connected to a mixing blade mechanism, the pretreatment box mechanism being located above the mixing box mechanism, and the pre-impregnation mechanism being located below the pretreatment box mechanism; the first rotating mechanism drives the displacement rolling mechanism to rotate, the fixed rolling plate mechanism and the displacement rolling mechanism are used to crush the material, the pre-impregnation mechanism is used to store a catalyst, the second rotating mechanism drives the mixing blade mechanism to mix various materials, and the mixing box mechanism is used to achieve tilting and discharging.

[0012] As a preferred embodiment of the present invention, the pretreatment box mechanism includes a first motor fixed on a fixed frame, the output shaft of the first motor being fixedly connected to a first gear, the fixed frame being rotatably connected to two first rotating sleeves, one of the first rotating sleeves being fixedly connected to a second gear, the first gear and the second gear meshing, a pretreatment shell being fixedly connected between the two first rotating sleeves, the pretreatment shell being provided with a plurality of leakage holes, and a heating wire being provided inside the pretreatment shell.

[0013] As a preferred embodiment of the present invention, the first rotating mechanism includes a second motor fixed on a fixed frame, the output shaft of the second motor is fixedly connected to a third gear, the third gear meshes with a fourth gear, the fourth gear is coaxially fixedly connected to a first rotating shaft, the first rotating shaft passes through a first rotating sleeve, and the first rotating shaft and the first rotating sleeve are rotatably connected.

[0014] As a preferred embodiment of the present invention, the fixed rolling plate mechanism includes a fixed column fixed in the middle of the pretreatment shell, the fixed column is fixedly connected to two symmetrically arranged fixed pressure plates, and the fixed pressure plates are provided with a plurality of material passage grooves.

[0015] As a preferred embodiment of the present invention, the displacement rolling mechanism includes a telescopic shaft fixedly connected to a first rotating shaft, a first bevel gear fixedly connected to the telescopic shaft, the first bevel gear meshing with a second bevel gear, a third rotating shaft coaxially fixedly connected to the second bevel gear, a displacement frame rotatably connected to the third rotating shaft and the telescopic shaft, both the third rotating shaft and the telescopic shaft passing through the displacement frame, a displacement block fixedly connected to the third rotating shaft, a threaded rod threadedly connected to the displacement block, a rotating plate rotatably connected to the threaded rod, a third motor provided on the rotating plate, the output shaft of the third motor and the threaded rod coaxially fixedly connected, the displacement block and the rotating plate slidably connected, and several rotating pressure plates fixedly connected to the rotating plate.

[0016] As a preferred embodiment of the present invention, the pre-immersion mechanism includes a first fixing ring fixed to the outside of the pretreatment shell, a plurality of linear motors fixedly connected to the bottom of the first fixing ring, a second fixing ring fixedly connected to the end of the linear motor away from the first fixing ring, the second fixing ring fixedly connected to the immersion shell, and the immersion shell is provided with an inlet and outlet.

[0017] As a preferred embodiment of the present invention, the mixing box mechanism includes a fourth motor fixed on a fixed frame, the output shaft of the fourth motor being fixedly connected to a fifth gear, the fixed frame being rotatably connected to two second rotating sleeves, one of the second rotating sleeves being fixedly connected to a sixth gear, the sixth gear meshing with the fifth gear, the mixing box being fixedly connected between the two second rotating sleeves, the top of the mixing box being provided with an inclined rod, and the bottom of the mixing box being provided with a discharge port.

[0018] As a preferred embodiment of the present invention, the second rotating mechanism includes a fifth motor fixed on a fixed frame, the output shaft of the fifth motor being fixedly connected to a seventh gear, the seventh gear meshing with an eighth gear, the eighth gear being fixedly connected to a fourth rotating shaft, the fourth rotating shaft passing through a second rotating sleeve, the fourth rotating shaft and the second rotating sleeve being rotatably connected, the end of the fourth rotating shaft away from the eighth gear being fixedly connected to a third bevel gear, the third bevel gear meshing with the fourth bevel gear, the fourth bevel gear being coaxially fixedly connected to the third rotating sleeve, and the third rotating sleeve and the inclined rod being rotatably connected.

[0019] As a preferred embodiment of the present invention, the mixing blade mechanism includes a rotating shell fixedly connected to a third rotating sleeve, a fifth rotating shaft fixedly connected to an inclined rod, the fifth rotating shaft passing through the third rotating sleeve, the fifth rotating shaft and the third rotating sleeve being rotatably connected, a fifth bevel gear fixedly connected to the fifth rotating shaft, the fifth bevel gear meshing with a sixth bevel gear, the sixth bevel gear being coaxially and fixedly connected to the sixth rotating shaft, a plurality of seventh bevel gears fixedly connected to the sixth rotating shaft, the seventh bevel gears meshing with an eighth bevel gear, the eighth bevel gear being coaxially and fixedly connected to a mixing shaft, and a plurality of mixing blades fixedly connected to the mixing shaft.

[0020] A method for preparing a refractory castable includes the following steps:

[0021] Step 1: First, put the material to be crushed into the pretreatment box mechanism. At this time, the displacement rolling mechanism is turned on to control the relative state of the displacement rolling mechanism and the fixed rolling plate mechanism, thereby controlling the crushing state of the material. Turning on the first rotating mechanism can drive the displacement rolling mechanism to rotate. The displacement rolling mechanism moves the material, and together with the fixed rolling plate mechanism, it can crush the material.

[0022] Step 2: The crushed material is evenly distributed on the pretreatment box mechanism under the action of the displacement rolling mechanism. At this time, the catalyst is poured into the pre-impregnation mechanism and then the pre-impregnation mechanism is turned on, so that the pre-impregnation mechanism rises and the catalyst can be submerged in the material on the pretreatment box mechanism to achieve repeated adhesion of the catalyst. After the submersion is completed, the pre-impregnation mechanism is turned on again, so that the pre-impregnation mechanism falls and the heating function of the pretreatment box mechanism is turned on to dry the material.

[0023] Step 3: After the material is dried, the pretreatment box mechanism is opened, causing the pretreatment box mechanism to flip and allow the material to enter the mixing box mechanism.

[0024] Step 4: Add other materials into the mixing chamber mechanism, and then turn on the second rotating mechanism. The second rotating mechanism will drive the mixing blade mechanism to achieve mixing of materials. After mixing is completed, the mixing chamber mechanism can be turned on to dump the materials.

[0025] The present invention has the following advantages:

[0026] 1. Achieves high integration and continuous operation of multiple processes: By integrating the crushing mechanism (fixed rolling plate mechanism and displacement rolling mechanism), the controllable impregnation mechanism (pre-impregnation mechanism), the pre-drying unit (heating wire inside the pretreatment shell), and the high-efficiency mixing mechanism (mixing box mechanism and mixing blade mechanism) into the same device, and using the flip-over pretreatment shell as the material flow hub, the material goes through impregnation and pre-drying in sequence from crushing, and finally falls directly into the mixing box below for final mixing. This achieves "one-stop" continuous processing from raw materials to premixed materials, greatly shortening the process flow and reducing material transfer and site occupation.

[0027] 2. Adjustable and controllable crushing particle size and wetting depth: The threaded rod and displacement block design in the displacement crushing mechanism allows for adjustment of the relative distance between the rotating and fixed pressure plates, enabling online, stepless control of crushing force and final output particle size to meet the aggregate particle size requirements of different formulations. The pre-impregnation mechanism uses a linear motor to drive the lifting and lowering of the impregnation tank, precisely controlling the catalyst liquid level and impregnation time. This achieves quantitative, controllable, and uniform impregnation of the crushed material by the catalyst, avoiding waste and contamination.

[0028] 3. A unique dynamic impregnation and rapid pre-drying process was designed: After crushing, the material is moved by a rotating displacement crushing mechanism and evenly spread within the pretreatment shell. At this time, the pre-impregnation mechanism rises to submerge the material in the catalyst, ensuring that each particle has sufficient contact with the catalyst. After impregnation, the pre-impregnation mechanism descends to recover excess catalyst. Subsequently, heating wires within the pretreatment shell are used to heat the impregnated thin layer of material, accelerating the evaporation of the solvent in the catalyst or promoting the initial reaction, achieving rapid pre-drying and creating favorable conditions for subsequent dry mixing.

[0029] 4. A highly efficient and tumble-discharge mixing system was constructed: The mixing blade mechanism adopts multi-stage bevel gear transmission, driving multiple mixing shafts and mixing blades to perform complex movements (possibly including revolution and rotation), ensuring rapid and uniform mixing of dry powder and pretreated wet material without dead zones. The mixing box itself can be driven by a fourth motor to tumble, facilitating thorough and rapid discharge of the uniformly mixed material, ensuring clean discharge and reducing residue and cross-contamination.

[0030] 5. High degree of automation and environmentally friendly: The entire pretreatment process (crushing, lifting and soaking, heating, tilting and feeding, mixing, and final unloading) can be automatically completed by a program-controlled motor, greatly reducing labor intensity and human error. The main processing is carried out in a relatively enclosed pretreatment shell and mixing chamber, effectively suppressing the escape of dust and harmful gases and improving the working environment. Attached Figure Description

[0031] Figure 1 This is a first-view structural schematic diagram of a pretreatment device for refractory castables.

[0032] Figure 2 This is a second-view structural schematic diagram of a pretreatment device for refractory castables.

[0033] Figure 3 This is a third-view structural schematic diagram of a pretreatment device for refractory castables.

[0034] Figure 4 This is a schematic diagram of a first partial structure of a pretreatment device for refractory castables.

[0035] Figure 5 This is a schematic diagram of the second part of a pretreatment device for refractory castables.

[0036] Figure 6 This is a cross-sectional view of the mixing blade mechanism in a pretreatment device for refractory castables.

[0037] In the diagram: 1. Base frame; 2. Fixing frame; 3. Pretreatment box mechanism; 301. First motor; 302. First gear; 303. Second gear; 304. First rotating sleeve; 305. Pretreatment shell; 306. Leakage hole; 4. First rotating mechanism; 401. Second motor; 402. Third gear; 403. Fourth gear; 404. First rotating shaft; 5. Fixed rolling plate mechanism; 501. Fixed column; 502. Fixed pressure plate; 503. Material passage chute; 6. Displacement rolling mechanism; 601. Telescopic shaft; 602. First bevel gear; 603. Second bevel gear; 604. Third rotating shaft; 605. Displacement block; 606. Threaded rod; 607. Third motor; 608. Rotating plate; 609. Rotating pressure plate; 7. Pre-impregnation mechanism; 701. First fixing ring; 702. Linear motor; 7 03. Second fixed ring; 704. Immersion shell; 705. Liquid inlet / outlet; 8. Mixing box mechanism; 801. Fourth motor; 802. Fifth gear; 803. Sixth gear; 804. Second rotating sleeve; 805. Mixing box; 806. Inclined rod; 807. Discharge port; 9. Second rotating mechanism; 901. Fifth motor; 902. Seventh gear; 903. Eighth gear; 904. Fourth rotating shaft; 905. Third bevel gear; 906. Fourth bevel gear; 907. Third rotating sleeve; 10. Mixing blade mechanism; 1001. Rotating shell; 1002. Fifth rotating shaft; 1003. Fifth bevel gear; 1004. Sixth bevel gear; 1005. Sixth rotating shaft; 1006. Seventh bevel gear; 1007. Eighth bevel gear; 1008. Mixing shaft; 1009. Mixing blade. Detailed Implementation

[0038] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0039] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 the present 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 the present invention.

[0040] Example 1, please refer to Figures 1-6A pretreatment device for refractory castable includes a base frame 1, which is fixedly connected to a fixing frame 2. The fixing frame 2 is equipped with a pretreatment box mechanism 3 and a first rotating mechanism 4. The pretreatment box mechanism 3 is equipped with a fixed crushing plate mechanism 5. The first rotating mechanism 4 is connected to a displacement crushing mechanism 6. The pretreatment box mechanism 3 is equipped with a pre-impregnation mechanism 7. The fixing frame 2 is equipped with a mixing box mechanism 8 and a second rotating mechanism 9. The second rotating mechanism 9 is connected to a mixing blade mechanism 10. The pretreatment box mechanism 3 is located above the mixing box mechanism 8, and the pre-impregnation mechanism 7 is located below the pretreatment box mechanism 3. The first rotating mechanism 4 is used to drive the displacement crushing mechanism 6 to rotate. The fixed crushing plate mechanism 5 and the displacement crushing mechanism 6 are used to crush the material. The pre-impregnation mechanism 7 is used to store a catalyst. The second rotating mechanism 9 is used to drive the mixing blade mechanism 10. The mixing blade mechanism 10 is used to mix various materials. The mixing box mechanism 8 is used to achieve the tipping and feeding of materials.

[0041] The pretreatment box mechanism 3 includes a first motor 301 fixed on a fixed frame 2. The output shaft of the first motor 301 is fixedly connected to a first gear 302. The fixed frame 2 is rotatably connected to two first rotating sleeves 304. One of the first rotating sleeves 304 is fixedly connected to a second gear 303. The first gear 302 and the second gear 303 mesh. A pretreatment shell 305 is fixedly connected between the two first rotating sleeves 304. The pretreatment shell 305 is provided with a plurality of leakage holes 306. A heating wire is provided inside the pretreatment shell 305.

[0042] Specifically, turning on the first motor 301 can drive the first gear 302 to rotate, which in turn drives the second gear 303 to rotate, which in turn drives the first rotating sleeve 304 to rotate, causing the pretreatment shell 305 to flip over to pour out the material. The heating wire can dry the material after it has been impregnated with the catalyst. In addition, the vent 306 can also allow the catalyst to enter the pretreatment shell 305.

[0043] The first rotating mechanism 4 includes a second motor 401 fixed to the fixed frame 2. The output shaft of the second motor 401 is fixedly connected to a third gear 402. The third gear 402 meshes with a fourth gear 403. The fourth gear 403 is coaxially fixedly connected to a first rotating shaft 404. The first rotating shaft 404 passes through a first rotating sleeve 304, and the first rotating shaft 404 and the first rotating sleeve 304 are rotatably connected. The fixed pressing plate mechanism 5 includes a fixed column 501 fixed to the middle of the pretreatment shell 305. The fixed column 501 is fixedly connected to two symmetrically arranged fixed pressure plates 502. The fixed pressure plates 502 are provided with a plurality of material passage grooves 503. The displacement and compaction mechanism 6 includes a telescopic shaft 601 fixedly connected to a first rotating shaft 404, a first bevel gear 602 fixedly connected to the telescopic shaft 601, the first bevel gear 602 meshing with a second bevel gear 603, a third rotating shaft 604 fixedly connected to the second bevel gear 603, a displacement frame rotatably connected to the third rotating shaft 604 and the telescopic shaft 601, both the third rotating shaft 604 and the telescopic shaft 601 passing through the displacement frame, the displacement frame contacting the upper part of the pretreatment shell 305, a displacement block 605 fixedly connected to the third rotating shaft 604, a threaded rod 606 threadedly connected to the displacement block 605, a rotating plate 608 rotatably connected to the threaded rod 606, a third motor 607 mounted on the rotating plate 608, the output shaft of the third motor 607 and the threaded rod 606 fixedly connected coaxially, the displacement block 605 and the rotating plate 608 slidably connected, and several rotating pressure plates 609 fixedly connected to the rotating plate 608.

[0044] Specifically, turning on the second motor 401 drives the third gear 402 to rotate, which in turn drives the fourth gear 403 to rotate. The rotation of the fourth gear 403 drives the telescopic shaft 601 to rotate, which in turn drives the first bevel gear 602 to rotate. The rotation of the first bevel gear 602 drives the second bevel gear 603 to rotate, thereby causing the third rotating shaft 604 to rotate. This causes the displacement block 605 to rotate, which in turn drives the rotating plate 608 to rotate, which in turn drives the rotating pressure plate 609 to rotate. Together with the fixed pressure plate 502, this can crush the material. Turning on the third motor 607 drives the threaded rod 606 to rotate, controlling the position of the displacement block 605, and thus adjusting the relative position of the rotating pressure plate 609 and the fixed pressure plate 502 to adjust the crushing particle size.

[0045] The pre-immersion mechanism 7 includes a first fixing ring 701 fixed to the outside of the pretreatment shell 305. Several linear motors 702 are fixedly connected to the bottom of the first fixing ring 701. A second fixing ring 703 is fixedly connected to the end of the linear motor 702 away from the first fixing ring 701. The second fixing ring 703 is fixedly connected to the immersion shell 704. The immersion shell 704 is provided with an inlet and outlet port 705.

[0046] Specifically, turning on the linear motor 702 can drive the second fixed ring 703 to rise and fall, thereby driving the immersion shell 704 to rise and fall, in order to control the liquid level of the catalyst.

[0047] The mixing chamber mechanism 8 includes a fourth motor 801 fixed on a fixed frame 2. The output shaft of the fourth motor 801 is fixedly connected to a fifth gear 802. The fixed frame 2 is rotatably connected to two second rotating sleeves 804. One of the second rotating sleeves 804 is fixedly connected to a sixth gear 803. The sixth gear 803 and the fifth gear 802 mesh. The mixing chamber 805 is fixedly connected between the two second rotating sleeves 804. The top of the mixing chamber 805 is provided with an inclined rod 806, and the bottom of the mixing chamber 805 is provided with a discharge port 807.

[0048] Specifically, turning on the fourth motor 801 can drive the fifth gear 802 to rotate, and the rotation of the fifth gear 802 will drive the sixth gear 803 to rotate, thereby driving the second rotating sleeve 804 to rotate, which in turn drives the mixing box 805 to tilt and unload quickly. The material can be accurately unloaded through the discharge port 807.

[0049] The second rotating mechanism 9 includes a fifth motor 901 fixed on the fixed frame 2. The output shaft of the fifth motor 901 is fixedly connected to a seventh gear 902. The seventh gear 902 meshes with an eighth gear 903. The eighth gear 903 is fixedly connected to a fourth rotating shaft 904. The fourth rotating shaft 904 passes through a second rotating sleeve 804. The fourth rotating shaft 904 and the second rotating sleeve 804 are rotatably connected. The end of the fourth rotating shaft 904 away from the eighth gear 903 is fixedly connected to a third bevel gear 905. The third bevel gear 905 meshes with a fourth bevel gear 906. The fourth bevel gear 906 is coaxially fixedly connected to a third rotating sleeve 907. The third rotating sleeve 907 and the inclined rod 806 are rotatably connected.

[0050] The mixing blade mechanism 10 includes a rotating shell 1001 fixedly connected to a third rotating sleeve 907, a fifth rotating shaft 1002 fixedly connected to an inclined rod 806, the fifth rotating shaft 1002 passing through the third rotating sleeve 907, the fifth rotating shaft 1002 and the third rotating sleeve 907 being rotatably connected, the fifth rotating shaft 1002 being fixedly connected to a fifth bevel gear 1003, the fifth bevel gear 1003 meshing with a sixth bevel gear 1004, the sixth bevel gear 1004 being coaxially fixedly connected to a sixth rotating shaft 1005, the sixth rotating shaft 1005 being fixedly connected to several seventh bevel gears 1006, the seventh bevel gears 1006 meshing with an eighth bevel gear 1007, the eighth bevel gear 1007 being coaxially fixedly connected to a mixing shaft 1008, and the mixing shaft 1008 being fixedly connected to several mixing blades 1009.

[0051] Example 2, see below. Figures 1-6 In this embodiment of the invention, a method for preparing a refractory castable includes the following steps:

[0052] Step 1: First, put the material to be crushed into the pretreatment box mechanism 3. At this time, the displacement crushing mechanism 6 is turned on, thereby controlling the relative state of the displacement crushing mechanism 6 and the fixed crushing plate mechanism 5, and thus controlling the crushing state of the material. Turning on the first rotating mechanism 4 can drive the displacement crushing mechanism 6 to rotate. The displacement crushing mechanism 6 moves the material, and together with the fixed crushing plate mechanism 5, the material can be crushed.

[0053] Step 2: The crushed material is evenly distributed on the pretreatment box mechanism 3 under the action of the displacement and crushing mechanism 6. At this time, the catalyst is poured into the pre-impregnation mechanism 7 and then the pre-impregnation mechanism 7 is turned on, so that the pre-impregnation mechanism 7 rises, which allows the catalyst to immerse the material on the pretreatment box mechanism 3 and achieve repeated adhesion of the catalyst. After the immersion is completed, the pre-impregnation mechanism 7 is turned on again, so that the pre-impregnation mechanism 7 falls, and then the heating function of the pretreatment box mechanism 3 is turned on to dry the material.

[0054] Step 3: After the material is dried, the pretreatment box mechanism 3 is opened, causing the pretreatment box mechanism 3 to flip over, so that the material enters the mixing box mechanism 8.

[0055] Step 4: Add other materials into the mixing chamber mechanism 8, and then turn on the second rotating mechanism 9. The second rotating mechanism 9 will drive the mixing blade mechanism 10 to achieve mixing of materials. After mixing is completed, the mixing chamber mechanism 8 can be turned on to dump the materials.

[0056] The specific preparation process in this invention is as follows:

[0057] Crushing Process: The aggregate raw materials to be crushed are fed into the horizontally positioned pretreatment shell 305 through the feed inlet. The second motor 401 is started, driving the rotating pressure plate 609 of the displacement crushing mechanism 6 to rotate. The material is crushed between the fixed pressure plate 502 and the rotating pressure plate 609, and the crushing particle size is controlled by adjusting the threaded rod 606. The crushed fine material is initially screened through the perforation 306, while larger particles continue to be crushed.

[0058] Catalyst impregnation: After crushing to the required particle size, a metered amount of catalyst is injected into the impregnation shell 704 through the inlet / outlet 705. The linear motor 702 is started to push the impregnation shell 704 upward, so that the catalyst liquid surface completely submerges the material in the lower half of the pretreatment shell 305, and this is maintained for a period of time to ensure sufficient impregnation.

[0059] Catalyst recovery and pre-drying: After impregnation, the linear motor 702 drives the impregnation shell 704 to descend, recovering excess catalyst. The heating wire in the pretreatment shell 305 is activated to heat the wet material evenly spread in the shell, promoting moisture evaporation or pre-reaction and achieving rapid pre-drying.

[0060] Material transfer: After pre-drying is completed, the first motor 301 is started to drive the pretreatment shell 305 to rotate 180 degrees, and the processed material inside the shell is poured into the mixing box 805 below through the hole 306 and gravity.

[0061] Mixing and blending: Add other dry powder raw materials (such as micro powder, binder, etc.) into the mixing box 805. Start the fifth motor 901 to drive the mixing blade mechanism 10 to perform a combined revolution and rotation motion, so that the pretreated material and the dry powder are fully and evenly mixed.

[0062] Unloading: After the mixture is evenly mixed, the fourth motor 801 is started to drive the mixing box 805 to rotate and unload the mixed refractory castable premix from the discharge port 807 for the next packaging or use process.

[0063] 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 pretreatment device for refractory castables, comprising a base frame, characterized in that, The bottom frame is fixedly connected to a fixed frame, which is equipped with a pretreatment box mechanism and a first rotating mechanism. The pretreatment box mechanism is equipped with a fixed crushing plate mechanism. The first rotating mechanism is connected to a displacement crushing mechanism. The pretreatment box mechanism is equipped with a pre-impregnation mechanism. The fixed frame is equipped with a mixing box mechanism and a second rotating mechanism, which is connected to a mixing blade mechanism. The pretreatment box mechanism is located above the mixing box mechanism, and the pre-impregnation mechanism is located below the pretreatment box mechanism. The first rotating mechanism is used to drive the displacement crushing mechanism to rotate. The fixed crushing plate mechanism and the displacement crushing mechanism are used to crush the material. The pre-impregnation mechanism is used to store the catalyst. The second rotating mechanism is used to drive the mixing blade mechanism, which is used to mix various materials. The mixing box mechanism is used to achieve the tipping and feeding of materials.

2. The pretreatment device for refractory castables according to claim 1, characterized in that, The pretreatment box mechanism includes a first motor fixed on a fixed frame, the output shaft of the first motor being fixedly connected to a first gear, the fixed frame being rotatably connected to two first rotating sleeves, one of the first rotating sleeves being fixedly connected to a second gear, the first gear and the second gear meshing, a pretreatment shell being fixedly connected between the two first rotating sleeves, the pretreatment shell being provided with several leakage holes, and a heating wire being provided inside the pretreatment shell.

3. The pretreatment apparatus for refractory castables according to claim 2, characterized in that, The first rotating mechanism includes a second motor fixed on a fixed frame, the output shaft of the second motor is fixedly connected to a third gear, the third gear meshes with a fourth gear, the fourth gear is coaxially fixedly connected to a first rotating shaft, the first rotating shaft passes through a first rotating sleeve, and the first rotating shaft and the first rotating sleeve are rotatably connected.

4. The pretreatment apparatus for refractory castables according to claim 3, characterized in that, The fixed rolling plate mechanism includes a fixed column fixed in the middle of the pretreatment shell, the fixed column is fixedly connected to two symmetrically arranged fixed pressure plates, and the fixed pressure plates are provided with several material passage grooves.

5. The pretreatment apparatus for refractory castables according to claim 4, characterized in that, The displacement and compaction mechanism includes a telescopic shaft fixedly connected to a first rotating shaft, a first bevel gear fixedly connected to the telescopic shaft, the first bevel gear meshing with a second bevel gear, a third rotating shaft fixedly connected to the second bevel gear coaxially, a displacement frame rotatably connected to the third rotating shaft and the telescopic shaft, both the third rotating shaft and the telescopic shaft passing through the displacement frame, a displacement block fixedly connected to the third rotating shaft, a threaded rod threadedly connected to the displacement block, a rotating plate rotatably connected to the threaded rod, a third motor mounted on the rotating plate, the output shaft of the third motor and the threaded rod coaxially fixedly connected, the displacement block and the rotating plate slidably connected, and several rotating pressure plates fixedly connected to the rotating plate.

6. The pretreatment apparatus for refractory castables according to claim 3, characterized in that, The pre-immersion mechanism includes a first fixing ring fixed to the outside of the pretreatment shell, a number of linear motors fixedly connected to the bottom of the first fixing ring, a second fixing ring fixedly connected to the end of the linear motor away from the first fixing ring, and the second fixing ring fixedly connected to the immersion shell, which is provided with inlet and outlet ports.

7. The pretreatment apparatus for refractory castables according to claim 1, characterized in that, The mixing chamber mechanism includes a fourth motor fixed on a fixed frame, the output shaft of the fourth motor fixedly connected to a fifth gear, the fixed frame rotatably connected to two second rotating sleeves, one of the second rotating sleeves fixedly connected to a sixth gear, the sixth gear and the fifth gear meshing, the mixing chamber fixedly connected between the two second rotating sleeves, the top of the mixing chamber is provided with an inclined rod, and the bottom of the mixing chamber is provided with a discharge port.

8. The pretreatment apparatus for refractory castables according to claim 7, characterized in that, The second rotating mechanism includes a fifth motor fixed on a fixed frame. The output shaft of the fifth motor is fixedly connected to a seventh gear. The seventh gear meshes with an eighth gear. The eighth gear is fixedly connected to a fourth rotating shaft. The fourth rotating shaft passes through a second rotating sleeve. The fourth rotating shaft and the second rotating sleeve are rotatably connected. The end of the fourth rotating shaft away from the eighth gear is fixedly connected to a third bevel gear. The third bevel gear meshes with the fourth bevel gear. The fourth bevel gear is coaxially fixedly connected to the third rotating sleeve. The third rotating sleeve and the inclined rod are rotatably connected.

9. The pretreatment apparatus for refractory castables according to claim 8, characterized in that, The mixing blade mechanism includes a rotating shell fixedly connected to a third rotating sleeve, a fifth rotating shaft fixedly connected to an inclined rod, the fifth rotating shaft passing through the third rotating sleeve, the fifth rotating shaft and the third rotating sleeve being rotatably connected, a fifth bevel gear fixedly connected to the fifth rotating shaft, the fifth bevel gear meshing with a sixth bevel gear, the sixth bevel gear being coaxially and fixedly connected to the sixth rotating shaft, several seventh bevel gears fixedly connected to the sixth rotating shaft, the seventh bevel gears meshing with an eighth bevel gear, the eighth bevel gear being coaxially and fixedly connected to a mixing shaft, and several mixing blades fixedly connected to the mixing shaft.

10. The method for preparing the refractory castable according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: First, put the material to be crushed into the pretreatment box mechanism. At this time, the displacement rolling mechanism is turned on to control the relative state of the displacement rolling mechanism and the fixed rolling plate mechanism, thereby controlling the crushing state of the material. Turning on the first rotating mechanism can drive the displacement rolling mechanism to rotate. The displacement rolling mechanism moves the material, and together with the fixed rolling plate mechanism, it can crush the material. Step 2: The crushed material is evenly distributed on the pretreatment box mechanism under the action of the displacement rolling mechanism. At this time, the catalyst is poured into the pre-impregnation mechanism and then the pre-impregnation mechanism is turned on, so that the pre-impregnation mechanism rises and the catalyst can be submerged in the material on the pretreatment box mechanism to achieve repeated adhesion of the catalyst. After the submersion is completed, the pre-impregnation mechanism is turned on again, so that the pre-impregnation mechanism falls and the heating function of the pretreatment box mechanism is turned on to dry the material. Step 3: After the material is dried, the pretreatment box mechanism is opened, causing the pretreatment box mechanism to flip and allow the material to enter the mixing box mechanism. Step 4: Add other materials into the mixing chamber mechanism, and then turn on the second rotating mechanism. The second rotating mechanism will drive the mixing blade mechanism to achieve mixing of materials. After mixing is completed, the mixing chamber mechanism can be turned on to dump the materials.

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