A preparation device and method for flame retardant and explosion-resistant coating

Abstract

The invention discloses a preparation device and a preparation method for a flame retardant and explosion-proof coating, which relate to the field of high-aluminum cement flame retardant coating processing, and solve the problem that the existing flame retardant and explosion-proof coating preparation device is difficult to synchronously produce and process high-aluminum cement when used, resulting in increased transportation and storage costs and inability to fully utilize energy. The invention comprises a spray box, a mixing tank, a processing mechanism, a preparation mechanism and a spray mechanism, the processing mechanism comprises a calcining cylinder and a ball mill, and the preparation mechanism comprises a lightweight rod. The invention completes the synchronous processing of high-aluminum cement by loading bauxite and lime into a calcining cylinder in the same proportion, calcining them to produce clinker, and then conveying the clinker to a ball mill for grinding into powdered high-aluminum cement, sensing the liquid level through the lightweight rod, and inputting the powdered high-aluminum cement extracted from the ball mill into the mixing tank in accordance with the liquid level and stirring and mixing, spraying through the spray mechanism, and using the hot air extracted from the calcining cylinder to dry the product surface.

Description

Technical Field

[0001] The invention relates to the technical field of high-alumina cement flame-retardant coating processing, and in particular to a preparation device and a preparation method of a flame-retardant and explosion-resistant coating. Background Art

[0002] Lightweight flame-retardant building materials are composite materials used in building construction and decoration, including lightweight bricks, lightweight concrete, lightweight flame-retardant partition panels, and lightweight flame-retardant decorative panels. While reducing the weight of building materials, these materials also offer fire-resistant properties. High-alumina cement, also known as refractory cement, is a fast-hardening, high-strength, heat-resistant, explosion-resistant, and corrosion-resistant lightweight flame-retardant cementitious material. It is a hydraulic cementitious material ground from clinker containing calcium aluminate as the primary component and approximately 50% alumina. High-alumina cement is primarily used in projects with tight deadlines, such as pressure relief, road construction, and special emergency repair projects. It can also be used in winter construction projects.

[0003] Existing high-alumina cement coating preparation equipment generally directly mixes the purchased finished bagged high-alumina cement with water at a water-cement ratio of 0.45 to produce mortar, and then sprays the mortar evenly onto the surface of the building material. However, since high-alumina cement itself is easily affected by moisture, it is easy to clump inside during storage. At the same time, during the process of mixing with water, the surface will be wrapped by a water film and cannot be fully dissolved and mixed, affecting the uniformity of the coating and the stability during subsequent use. Summary of the Invention

[0004] The purpose of the present invention is to provide a flame retardant and explosion-proof coating preparation device and preparation method that are convenient for reducing the production and transportation costs of high-alumina cement, realizing the synchronization of production and preparation processes and making full use of internal energy, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a preparation device for a flame retardant and explosion-resistant coating, comprising a spray box, a processing mechanism, a preparation mechanism and a spray mechanism, wherein the side of the spray box is fixedly connected to a base, and the base is fixedly connected to a mixing tank, the processing mechanism comprises a calcining cylinder and a ball mill installed on the spray box, the inner wall of one end of the ball mill is coaxially rotatably connected to one end of the calcining cylinder, bauxite and lime are loaded into the calcining cylinder in the same proportion and calcined to produce clinker, and then the clinker is transported to the ball mill for grinding into powdered high-alumina cement, thereby completing the synchronous processing of high-alumina cement, the preparation mechanism comprises a calcining cylinder installed in the mixing tank, and a ball mill is installed in the mixing tank. A rotating tube, the side of which is evenly and fixedly connected with multiple groups of lightweight rods, the bottom surface of the lightweight rods is horizontal, and is used to sense the liquid level in the mixing tank through the lightweight rods, and input the powdered high-alumina cement extracted from the ball mill into the mixing tank in accordance with the liquid level and stir and mix it. The spraying mechanism is installed in the spray box, and is used to spray the flame retardant and explosion-proof coating mixed in the mixing tank onto the product surface, and use the hot air extracted from the calcining cylinder during the transportation of high-alumina cement to dry the product surface, so as to reduce the production and transportation cost of high-alumina cement, realize the synchronization of production and preparation process and make full use of internal energy.

[0006] Preferably, the preparation mechanism also includes a conveying pipe fixedly mounted on the top of the mixing tank, the outer wall of the conveying pipe is movably sleeved with a sleeve pipe, the rotating tube is rotatably connected to the bottom end of the sleeve pipe, the lightweight rod is provided with an output groove connected to the rotating tube, the opening of the output groove faces downward, and the mixing tank is provided with a driving member for drawing the high-alumina cement powder in the ball mill into the conveying pipe, and for stirring and mixing the raw materials in the mixing tank in a linked manner, so that the liquid level in the mixing tank can be sensed by the lightweight rod, and the powdered high-alumina cement drawn out of the ball mill is input into the mixing tank in accordance with the liquid level and stirred and mixed.

[0007] Preferably, the driving member includes a driving motor fixedly mounted on the base, the output end of the driving motor is coaxially fixedly connected to a driving shaft, the driving shaft is coaxially fixedly connected to a rotating disk rotatably connected to the bottom of the mixing tank, a plurality of stirring rods are evenly fixedly connected to the rotating disk, the side wall of the lightweight rod is slidably fitted with the outer wall of the stirring rod in the vertical direction, the driving shaft passes through the rotating tube, and is movably connected to the inner wall of the rotating tube, so as to facilitate the high-alumina cement powder in the ball mill to be drawn into the conveying tube, and to stir and mix the raw materials in the mixing tank in a coordinated manner.

[0008] Preferably, the processing mechanism also includes a feed hopper fixedly mounted on the calcining cylinder, a fixing frame fixedly connected to the mixing tank, the calcining cylinder is fixedly connected to the fixing frame, the outer wall of the ball mill is rotatably connected to the spray box, a plurality of grinding balls are provided in the ball mill, and a conveying port connected to the ball mill is opened at one end of the calcining cylinder away from the feed hopper, and a fixed plate rotatably connected to one end of the ball mill is fixedly connected to the outer wall of the calcining cylinder, one end of the conveying pipe passes through the fixed plate and is connected to the bottom end side of the ball mill, and a conveying member is provided in the calcining cylinder for pushing the raw materials in the calcining cylinder to the conveying port when the drive shaft rotates, so as to facilitate loading bauxite and lime into the calcining cylinder in the same proportion for calcining to produce clinker, and then conveying the clinker to the ball mill for grinding into powdered high-alumina cement, thereby completing the synchronous processing of high-alumina cement.

[0009] Preferably, the conveying member includes a rotating shaft rotatably connected to the calcining cylinder, the outer wall of the rotating shaft is fixedly connected to a conveying screw rotatably connected to the inner wall of the calcining cylinder, one end of the rotating shaft passes through the calcining cylinder and is coaxially fixedly connected to a second bevel gear, the top end of the driving shaft passes through the conveying pipe and is rotatably connected to the conveying pipe, the top end of the driving shaft is coaxially fixedly connected to a first bevel gear meshing with the second bevel gear, and the end of the driving shaft away from the second bevel gear is coaxially fixedly connected to the ball mill, so that when the driving shaft rotates, the raw material in the calcining cylinder is pushed toward the conveying port.

[0010] Preferably, the spraying mechanism includes a spraying robot arm fixedly installed in the spray box, the bottom end side of the mixing tank is connected to an output pipe for conveying the flame retardant and explosion-proof coating raw materials to the spraying robot arm, a first filter is fixedly connected to the mixing tank, the sleeve pipe passes through the first filter and is movably connected to the inner wall of the first filter, the upper end of the side of the mixing tank is connected to an exhaust pipe, which facilitates spraying the flame retardant and explosion-proof coating mixed in the mixing tank onto the product surface, and uses the hot air extracted from the calcination cylinder during the conveying of high-alumina cement to dry the product surface.

[0011] Preferably, one end of the exhaust pipe is connected to a drying tray, an exhaust hole is provided on the side of the spray box, and the side of the mixing tank is connected to a water inlet pipe to facilitate the transportation of gas and liquid.

[0012] Preferably, the outer wall of the driving shaft is fixedly connected to an impeller rotatably connected to the inner wall of the conveying pipe, so that the driving shaft rotates and the impeller is driven to rotate to draw the powder in the ball mill into the conveying pipe.

[0013] Preferably, a second filter is fixedly connected to the conveying pipe, and a plurality of driving grooves are evenly arranged on the inner wall of the ball mill.

[0014] A method for preparing a flame retardant and explosion-resistant coating device comprises the following steps:

[0015] S1. The bauxite and lime are loaded into the calcining tube in the same proportion and calcined to produce clinker, and then the clinker is transported to the ball mill for grinding into powdered high-alumina cement, completing the simultaneous processing of high-alumina cement;

[0016] S2. The powdered high-alumina cement is extracted from the ball mill by the preparation mechanism, and then the high-alumina cement is input into the mixing tank through the lightweight rod to fit the liquid surface and stirred;

[0017] S3. The flame retardant and explosion-resistant coating mixed in the mixing tank is sprayed onto the surface of the product in the spray box through the spraying mechanism, and the hot air extracted from the calcining cylinder during the transportation of high-alumina cement is used to dry the surface of the product.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention provides a preparation device and method for flame retardant and explosion-proof coatings, which solve the problem that the existing flame retardant and explosion-proof coating preparation device is difficult to perform synchronous production and processing of high-alumina cement when in use, resulting in increased transportation and storage costs and inability to fully utilize energy. The invention provides a preparation device and method for flame retardant and explosion-proof coatings, which solves the problem that the existing flame retardant and explosion-proof coating preparation device is difficult to perform synchronous production and processing of high-alumina cement when in use, resulting in increased transportation and storage costs and inability to fully utilize energy. The invention provides a preparation ...

[0020] 2. The present invention provides a device and method for preparing a flame retardant and explosion-proof coating. The device has strong integrity and can directly produce, prepare and spray high-alumina cement flame retardant and explosion-proof coatings, which greatly improves production efficiency. It also avoids the consumption of costs such as high-alumina cement packaging and transportation. There is no need to worry about high-alumina cement getting damp and clumping. The coating is prepared more uniformly and accurately. At the same time, the heat energy in the production process is used for subsequent drying operations, so that energy is fully utilized and processing costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the local structure of the spraying mechanism of the present invention;

[0023] Figure 3 It is a schematic diagram of the partial structure of the preparation mechanism of the present invention;

[0024] Figure 4 for Figure 3 Enlarged view of area A in the middle;

[0025] Figure 5 It is a cross-sectional view of the local structure of the preparation mechanism of the present invention;

[0026] Figure 6 for Figure 5 Enlarged view of area B in the middle;

[0027] Figure 7 for Figure 5 Enlarged view of area C in the middle;

[0028] Figure 8 It is a partial structural cross-sectional view of the processing mechanism of the present invention;

[0029] Figure 9 for Figure 8 Enlarged view of area D in the middle.

[0030] In the figure: 1-spray box; 2-base; 3-mixing tank; 4-processing mechanism; 5-calcining cylinder; 6-ball mill; 7-preparation mechanism; 8-rotating tube; 9-light rod; 10-spraying mechanism; 11-delivery pipe; 12-sleeve pipe; 13-output trough; 14-driving member; 15-driving motor; 16-driving shaft; 17-rotating disk; 18-stirring rod; 19-feed hopper; 20-fixed frame; 21-grinding ball; 22-delivery port; 23-fixed disk; 24-delivery member; 25-rotating shaft; 26-delivery screw; 27-second bevel gear; 28-first bevel gear; 29-spraying robot arm; 30-output pipe; 31-first filter screen; 32-exhaust pipe; 33-drying plate; 35-exhaust hole; 36-water inlet pipe; 37-impeller; 38-second filter screen; 39-driving trough. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figures 1-9The present invention provides a technical solution: a preparation device for a flame retardant and explosion-proof coating, comprising a spray box 1, a processing mechanism 4, a preparation mechanism 7 and a spray mechanism 10. The side of the spray box 1 is fixedly connected to a base 2, and a mixing tank 3 is fixedly connected to the base 2. The processing mechanism 4 comprises a calcining tube 5 and a ball mill 6 mounted on the spray box 1. The inner wall of one end of the ball mill 6 is coaxially rotatably connected to one end of the calcining tube 5. Bauxite and lime are loaded into the calcining tube 5 in the same proportion and calcined to produce clinker, and then the clinker is transported to the ball mill 6 for grinding into powdered high-alumina cement, completing the synchronous processing of high-alumina cement. The preparation mechanism 7 includes an installation A rotating tube 8 is installed in the mixing tank 3, and multiple groups of lightweight rods 9 are evenly fixedly connected to the side of the rotating tube 8. The bottom surface of the lightweight rod 9 is horizontal, and the upper side is triangular to prevent the falling powder from accumulating on the upper side of the lightweight rod 9. It is used to sense the liquid level in the mixing tank 3 through the lightweight rod 9, and input the powdered high-alumina cement extracted from the ball mill 6 into the mixing tank 3 in accordance with the liquid surface and stir and mix. The spraying mechanism 10 is installed in the spray box 1, and is used to spray the flame retardant and explosion-proof coating mixed in the mixing tank 3 onto the product surface, and use the hot air extracted from the calcining cylinder 5 during the transportation of the high-alumina cement to dry the product surface.

[0033] The preparation mechanism 7 also includes a conveying pipe 11 fixedly installed on the top of the mixing tank 3, a second filter 38 is fixedly connected to the conveying pipe 11, a sleeve tube 12 is movably sleeved on the outer wall of the conveying pipe 11, the rotating tube 8 is rotatably connected to the bottom end of the sleeve tube 12, and an output groove 13 connected to the rotating tube 8 is provided on the lightweight rod 9, and the opening of the output groove 13 faces downward. The mixing tank 3 is provided with a driving member 14 for drawing the high-alumina cement powder in the ball mill 6 into the conveying pipe 11, and stirring and mixing the raw materials in the mixing tank 3.

[0034] The driving member 14 includes a driving motor 15 fixedly mounted on the base 2. The model of the driving motor 15 is preferably Y80M1-2. The output end of the driving motor 15 is coaxially fixedly connected to the driving shaft 16. The driving shaft 16 is coaxially fixedly connected to a rotating disk 17 rotatably connected to the bottom of the mixing tank 3. A plurality of groups of stirring rods 18 are evenly fixedly connected to the rotating disk 17. The side wall of the lightweight rod 9 and the outer wall of the stirring rod 18 slide and fit in the vertical direction. The driving shaft 16 passes through the rotating tube 8 and is movably connected to the inner wall of the rotating tube 8. The outer wall of the driving shaft 16 is fixedly connected to an impeller 37 rotatably connected to the inner wall of the conveying pipe 11.

[0035] The processing mechanism 4 also includes a feed hopper 19 fixedly mounted on the calcining cylinder 5, a fixed frame 20 fixedly connected to the mixing tank 3, the calcining cylinder 5 is fixedly connected to the fixed frame 20, the outer wall of the ball mill 6 is rotatably connected to the spray box 1, a plurality of groups of grinding balls 21 are provided in the ball mill 6, and a plurality of groups of drive grooves 39 are evenly provided on the inner wall of the ball mill 6. A conveying port 22 connected to the ball mill 6 is provided at one end of the calcining cylinder 5 away from the feed hopper 19, and a fixed disk 23 rotatably connected to one end of the ball mill 6 is fixedly connected to the outer wall of the calcining cylinder 5. One end of the conveying pipe 11 passes through the fixed disk 23 and is connected to the bottom end side of the ball mill 6. A conveying member 24 is provided in the calcining cylinder 5 for pushing the raw material in the calcining cylinder 5 to the conveying port 22 in linkage when the drive shaft 16 rotates.

[0036] The conveying member 24 includes a rotating shaft 25 rotatably connected to the calcining cylinder 5, and the outer wall of the rotating shaft 25 is fixedly connected to a conveying screw 26 rotatably connected to the inner wall of the calcining cylinder 5. One end of the rotating shaft 25 passes through the calcining cylinder 5 and is coaxially fixedly connected to a second bevel gear 27. The top end of the drive shaft 16 passes through the conveying pipe 11 and is rotatably connected to the conveying pipe 11. The top end of the drive shaft 16 is coaxially fixedly connected to a first bevel gear 28 meshing with the second bevel gear 27. The end of the drive shaft 16 away from the second bevel gear 27 is coaxially fixedly connected to the ball mill 6.

[0037] The spraying mechanism 10 includes a spraying robot arm 29 fixedly installed in the spray box 1. The bottom end side of the mixing tank 3 is connected to an output pipe 30 for transporting the flame retardant and explosion-proof coating raw materials to the spraying robot arm 29. A first filter screen 31 is fixedly connected to the mixing tank 3. The sleeve pipe 12 passes through the first filter screen 31 and is movably connected to the inner wall of the first filter screen 31. The upper end of the side of the mixing tank 3 is connected to an exhaust pipe 32, and one end of the exhaust pipe 32 is connected to a drying tray 33. An exhaust hole 35 is opened on the side of the spray box 1, and the side of the mixing tank 3 is connected to a water inlet pipe 36.

[0038] A method for preparing a flame retardant and explosion-resistant coating device comprises the following steps:

[0039] S1 bauxite and lime in the same proportions are loaded into the calcining tube 5 for calcining to produce clinker and then the clinker is transported to the ball mill 6 for grinding into powdered high alumina cement, completing the simultaneous processing of high alumina cement;

[0040] S2. The powdered high-alumina cement is extracted from the ball mill 6 by the preparation mechanism 7, and then the high-alumina cement is input into the mixing tank 3 by a lightweight rod 9 to fit the liquid surface and stirred;

[0041] S3. The flame retardant and explosion-resistant coating mixed in the mixing tank 3 is sprayed onto the surface of the product in the spray box 1 through the spraying mechanism 10, and the hot air extracted from the calcining cylinder 5 during the transportation of high-alumina cement is used to dry the surface of the product.

[0042] In this embodiment, bauxite and lime are loaded into the calcining cylinder 5 in the same proportion through the feed hopper 19 for calcination, and the drive motor 15 is started to drive the drive shaft 16 to rotate. The drive shaft 16 drives the first bevel gear 28 so that the second bevel gear 27 drives the rotating shaft 25 to rotate. The rotating shaft 25 drives the conveying screw 26 to convey the raw materials in the calcining cylinder 5 to the conveying port 22, and the produced clinker is conveyed to the ball mill 6 through the conveying port 22. At this time, the rotating shaft 25 drives the ball mill 6 to rotate, so that the internal grinding balls 21 are driven by the driving groove 39 to roll continuously, and the block and granular high-aluminum cement raw materials are ground into powder, completing the processing operation of high-aluminum cement.

[0043] During the rotation, the drive shaft 16 will drive the impeller 37 to rotate at high speed, thereby generating suction, and drawing the gas in the ball mill 6 into the mixing tank 3. Since the ball mill 6 is connected to the outer wall of the calcining tube 5, it can not only keep the calcining tube 5 warm, but also shorten the distance of raw material transportation, improve transportation efficiency, and reduce energy loss during transportation. The powdered high-alumina cement needs to be filtered through the second filter 38, and the powder with the required particle size is transported to the mixing tank 3 for subsequent mixing and preparation operations.

[0044] The required amount of water is injected into the mixing tank 3 through the water inlet pipe 36. At this time, due to the wide bottom surface and light weight of the lightweight rod 9, it will be floated by the liquid surface, driving the rotating tube 8 and the sleeve tube 12 to slide on the outer wall of the conveying tube 11. The powder in the conveying tube 11 is blown to the liquid surface after passing through the rotating tube 8 and the output groove 13. At this time, the driving shaft 16 drives the rotating disk 17 and the stirring rod 18 to rotate together, and the stirring rod 18 drives the lightweight rod 9 to rotate, causing ripples on the liquid surface. The gas in the rotating tube 8 is discharged downward through the gap between the output groove 13 and the liquid surface, thereby achieving the purpose of sufficient mixing, improving the mixing efficiency, and there is no need to worry about the cement raw materials agglomerating and other phenomena affecting the subsequent mixing uniformity.

[0045] The powder will be absorbed and mixed by the water in the mixing tank 3 and stirred into the raw material of the flame retardant and explosion-proof coating, while the high-temperature gas will flow upward, be filtered by the first filter 31, and be discharged into the drying tray 33 through the exhaust pipe 32 to dry the product in the spray box 1, and the excess gas will be discharged through the exhaust hole 35.

[0046] When the raw material concentration in the mixing tank 3 reaches the required value, the driving motor 15 can be stopped, and the spraying robot arm 29 can be started to spray the flame retardant and explosion-resistant coating raw materials in the output pipe 30 and the mixing tank 3 onto the surface of the product. At the same time, hot air drying is combined to effectively improve the processing efficiency, integrate processing, transportation, configuration, spraying, and drying into one, reduce the cost and loss of raw material transportation, make full use of energy, improve production efficiency, and reduce production costs.

[0047] It is worth noting that: when the spraying operation is no longer required, the mixed raw materials in the mixing tank 3 can be discharged and dried and then used as a storage tank. The powdered high-alumina cement in the ball mill 6 can be directly transported to the mixing tank 3 for storage. When the spraying raw materials need to be prepared, a set proportion of clean water can be injected into the mixing tank 3.

[0048] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for preparing a flame retardant and explosion-resistant coating, characterized in that: include: A spray box, the side of the spray box is fixedly connected to a base, and the base is fixedly connected to a mixing tank; Also includes: The processing mechanism includes a calcining cylinder and a ball mill installed on the spray box. The inner wall of one end of the ball mill is coaxially connected to one end of the calcining cylinder. Bauxite and lime are loaded into the calcining cylinder in the same proportion and calcined to produce clinker. The clinker is then transported to the ball mill for grinding into powdered high-alumina cement, completing the synchronous processing of high-alumina cement. The preparation mechanism includes a rotating tube installed in the mixing tank. The side of the rotating tube is evenly fixed with multiple sets of lightweight rods. The bottom surface of the lightweight rods is horizontal. The lightweight rods are used to sense the liquid level in the mixing tank through the lightweight rods, and the powdered high-alumina cement extracted from the ball mill is input into the mixing tank in accordance with the liquid level and stirred and mixed. The spraying mechanism is installed in the spray box and is used to spray the flame retardant and explosion-proof coating mixed in the mixing tank onto the surface of the product, and use the hot air extracted from the calcination cylinder during the transportation of high-alumina cement to dry the surface of the product. The preparation mechanism also includes a conveying pipe fixedly installed on the top of the mixing tank, and the outer wall of the conveying pipe is movably sleeved with a sleeve pipe. The rotating tube is rotatably connected to the bottom end of the sleeve pipe. An output groove connected to the rotating tube is provided on the lightweight rod, and the opening of the output groove faces downward. A driving member is provided in the mixing tank, and the driving member includes a driving motor fixedly installed on the base, and the output end of the driving motor is coaxially fixedly connected to a driving shaft. A rotating disk rotatably connected to the bottom of the mixing tank is coaxially fixedly connected to the driving shaft. A plurality of groups of stirring rods are evenly fixedly connected to the rotating disk. The side wall of the lightweight rod slides and fits with the outer wall of the stirring rod in the vertical direction. The driving shaft passes through the rotating tube and is movably sleeved with the inner wall of the rotating tube.

2. The device for preparing a flame retardant and explosion-resistant coating according to claim 1, characterized in that: The processing mechanism also includes a feed hopper fixedly mounted on the calcining cylinder, a fixed frame fixedly connected to the mixing tank, the calcining cylinder and the fixed frame fixedly connected, the outer wall of the ball mill is rotatably connected to the spray box, a plurality of grinding balls are provided in the ball mill, and a conveying port connected to the ball mill is provided at one end of the calcining cylinder away from the feed hopper, a fixed plate rotatably connected to one end of the ball mill is fixedly connected to the outer wall of the calcining cylinder, one end of the conveying pipe passes through the fixed plate and is connected to the bottom end side of the ball mill, and a conveying member is provided in the calcining cylinder for pushing the raw materials in the calcining cylinder to the conveying port when the drive shaft rotates.

3. The device for preparing a flame retardant and explosion-resistant coating according to claim 2, characterized in that: The conveying member includes a rotating shaft rotatably connected to the calcining cylinder, the outer wall of the rotating shaft is fixedly connected to a conveying screw rotatably connected to the inner wall of the calcining cylinder, one end of the rotating shaft passes through the calcining cylinder and is coaxially fixedly connected to the second bevel gear, the top end of the driving shaft passes through the conveying pipe and is rotatably connected to the conveying pipe, the top end of the driving shaft is coaxially fixedly connected to the first bevel gear meshing with the second bevel gear, and the end of the driving shaft away from the second bevel gear is coaxially fixedly connected to the ball mill cylinder.

4. The device for preparing a flame retardant and explosion-resistant coating according to claim 1, characterized in that: The spraying mechanism includes a spraying robot arm fixedly installed in the spray box. The bottom side of the mixing tank is connected to an output pipe for transporting the flame retardant and explosion-proof coating raw materials to the spraying robot arm. A first filter is fixedly connected to the mixing tank. The sleeve pipe passes through the first filter and is movably connected to the inner wall of the first filter. The upper end of the side of the mixing tank is connected to an exhaust pipe.

5. The device for preparing a flame retardant and explosion-resistant coating according to claim 4, characterized in that: One end of the exhaust pipe is connected with a drying plate, an exhaust hole is opened on the side of the spray box, and the side of the mixing tank is connected with a water inlet pipe.

6. The device for preparing a flame retardant and explosion-resistant coating according to claim 1, characterized in that: The outer wall of the driving shaft is fixedly connected with an impeller which is rotatably connected to the inner wall of the delivery pipe.

7. The device for preparing a flame retardant and explosion-resistant coating according to claim 1, characterized in that: A second filter is fixedly connected in the conveying pipe, and a plurality of driving grooves are evenly arranged on the inner wall of the ball mill.

8. A method for preparing a flame retardant and explosion-resistant coating according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. The bauxite and lime are loaded into the calcining tube in the same proportion and calcined to produce clinker, which is then transported to the ball mill for grinding into powdered high-alumina cement to complete the simultaneous processing of high-alumina cement; S2. The powdered high-alumina cement is extracted from the ball mill by the preparation mechanism, and then the high-alumina cement is input into the mixing tank by a lightweight rod to fit the liquid surface and stirred; S3. The flame retardant and explosion-proof coating mixed in the mixing tank is sprayed onto the surface of the product in the spray box through a spraying mechanism, and the hot air extracted from the calcining cylinder during the transportation of high-alumina cement is used to dry the surface of the product.

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