Preparation device and preparation method of flame-retardant anti-explosion coating

Abstract

The invention discloses a preparation device and a preparation method of a flame-retardant and anti-explosion coating, relates to the field of processing of high-alumina cement flame-retardant coatings, and solves the problems that the transportation and storage cost is increased and energy cannot be fully utilized due to the fact that high-alumina cement is difficult to produce and process synchronously when an existing preparation device of the flame-retardant and anti-explosion coating is used. Comprising a spraying box, a mixing tank, a processing mechanism, a preparation mechanism and a spraying mechanism, the processing mechanism comprises a calcining cylinder and a ball milling cylinder, and the preparation mechanism comprises a light rod. The high-alumina cement is synchronously processed, the height of the liquid level is sensed through the light rod, the powdery high-alumina cement pumped out of the ball milling cylinder is attached to the liquid level and input into the mixing tank to be stirred and mixed, spraying is conducted through the spraying mechanism, and the surface of a product is dried through hot air pumped out of the calcining cylinder.

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-proof 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 boards, lightweight flame-retardant decorative boards, etc. Lightweight flame-retardant building materials can reduce the specific weight of building materials while playing a certain role in fire prevention. 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 made of calcium aluminate as the main material and clinker with an alumina content of about 50%. High-alumina cement is mainly used for projects with urgent construction periods, such as pressure protection, roads and special emergency repair projects, and can also be used for projects in winter construction.

[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, when 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 which 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-mentioned 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-proof coating, comprising a spray box, a processing mechanism, a preparation mechanism and a spray mechanism, wherein a side of the spray box is fixedly connected to a base, and a mixing tank is fixedly connected to the base, and the processing mechanism comprises a calcining tube and a ball mill installed on the spray box, and the inner wall of one end of the ball mill is coaxially rotatably connected to one end of the calcining tube, bauxite and lime are loaded into the calcining tube in the same proportion for calcining 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, and the preparation mechanism comprises a calcining tube and a ball mill installed in the mixing tank. A rotating tube, the side of which is evenly and fixedly connected with a plurality of 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 spraying 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 utilize the hot air extracted from the calcining cylinder during the transportation of the high-alumina cement to dry the surface of the product, so as to reduce the production and transportation cost of the high-alumina cement, realize the synchronization of the production and preparation process and make full use of the internal energy.

[0006] Preferably, the preparation mechanism also includes a conveying pipe fixedly installed on the top of the mixing tank, the outer wall of the conveying pipe is movably sleeved with a sleeve tube, the rotating tube is rotatably connected to the bottom end of the sleeve tube, and the lightweight rod is provided with an output groove connected to the rotating tube, and the opening of the output groove faces downward. 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 linking the raw materials in the mixing tank to stir and mix, so that the liquid level in the mixing tank can be sensed by the lightweight rod, and the powdered high-alumina cement drawn from 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 groups of stirring rods are evenly and 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 a 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 linked manner.

[0008] Preferably, the processing mechanism also includes a feed hopper fixedly mounted on the calcining cylinder, a fixing frame is 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 groups of grinding balls are arranged 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, 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, a conveying member is provided in the calcining cylinder for pushing the raw materials in the calcining cylinder to the conveying port when the driving 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 powdery 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 with 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 with 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 as to facilitate the linkage when the driving shaft rotates to push the raw material in the calcining cylinder 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 in 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, so as to facilitate spraying the flame retardant and explosion-proof coating mixed in the mixing tank onto the product surface, and use the hot air extracted from the calcination cylinder during the conveying process of high alumina cement to dry the product surface.

[0011] Preferably, one end of the exhaust pipe is connected to a drying plate, 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, an impeller is fixedly connected to the outer wall of the driving shaft and is 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 screen is fixedly connected to the inside of the delivery 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-proof coating preparation device comprises the following steps: S1. The bauxite and lime are loaded into the calcining tube in the same proportion for calcining 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; S2. The powdered high-alumina cement is extracted from the ball mill through 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 and mixed; 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 by 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.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a flame retardant and explosion-proof coating preparation device and a preparation method, which solves the problem that it is difficult to synchronously produce and process high-alumina cement when using the existing flame retardant and explosion-proof coating preparation device, resulting in increased transportation and storage costs and insufficient utilization of energy. The invention provides a flame retardant and explosion-proof coating preparation device and a preparation method, which solves the problem that the existing flame retardant and explosion-proof coating preparation device is difficult to synchronously produce and process high-alumina cement when using, resulting in increased transportation and storage costs and insufficient utilization of energy. The invention provides a flame retardant and explosion-proof coating preparation method, which solves the problem that the existing flame retardant and explosion-proof coating preparation device is difficult to synchronously produce and process high-alumina cement when using, resulting in increased transportation and storage costs and insufficient utilization of energy. The invention provides a flame retardant and explosion-proof coating preparation method, which solves the problem that the existing flame retardant and explosion-proof coating preparation device is difficult to synchronously produce and process high-alumina cement when using, thereby solving ...

[0016] 2. The present invention provides a flame retardant and explosion-proof coating preparation device and preparation method. 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 and avoids the consumption of costs such as packaging and transportation of high-alumina cement. There is no need to worry about the high-alumina cement getting damp and agglomerating. The coating is prepared more evenly 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

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the spraying mechanism of the present invention; Figure 3 It is a schematic diagram of the local structure of the preparation mechanism of the present invention; Figure 4 for Figure 3 A magnified image of area A; Figure 5 It is a partial structural cross-sectional view of the preparation mechanism of the present invention; Figure 6 for Figure 5 Enlarged view of area B; Figure 7 for Figure 5 Enlarged view of area C in the middle; Figure 8 It is a partial structural cross-sectional view of the processing mechanism of the present invention; Fig. 9 for Figure 8 Enlarged view of area D in the middle.

[0018] In the figure: 1-spray box; 2-base; 3-mixing tank; 4-processing mechanism; 5-calcination cylinder; 6-ball mill; 7-preparation mechanism; 8-rotating tube; 9-light rod; 10-spraying mechanism; 11-conveying pipe; 12-sleeving pipe; 13-output slot; 14-driving member; 15-driving motor; 16-driving shaft; 17-rotating disk; 18-stirring rod; 19-feeding hopper; 20-fixed frame; 21-grinding ball; 22-conveying port; 23-fixed disk; 24-conveying member; 25-rotating shaft; 26-conveying 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 disk; 35-exhaust hole; 36-water inlet pipe; 37-impeller; 38-second filter screen; 39-driving slot. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 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, wherein a base 2 is fixedly connected to the side of the spray box 1, and a mixing tank 3 is fixedly connected to the base 2, and the processing mechanism 4 comprises a calcining tube 5 and a ball mill 6 installed on the spray box 1, and the inner wall of one end of the ball mill 6 is coaxially rotatably connected to one end of the calcining tube 5, and bauxite and lime are loaded into the calcining tube 5 in the same proportion for calcining to produce clinker, and then the clinker is transported to the ball mill 6 for grinding into powdered high-alumina cement, thereby completing the synchronous processing of high-alumina cement, and the preparation mechanism 7 comprises an installation A rotating tube 8 is installed in the mixing tank 3, and multiple groups of lightweight rods 9 are evenly and fixedly connected to the side of the rotating tube 8. The bottom surface of the lightweight rods 9 is horizontal, and the upper side is triangular, so as to prevent the falling powder from accumulating on the upper side of the lightweight rods 9. The lightweight rods 9 are used to sense the liquid level in the mixing tank 3, and input the powdered high-alumina cement extracted from the ball mill 6 into the mixing tank 3 in accordance with the liquid level and stir and mix. The spraying mechanism 10 is installed in the spraying 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.

[0021] The preparation mechanism 7 also includes a conveying pipe 11 fixedly installed on the top of the mixing tank 3, a second filter screen 38 is fixedly connected inside the conveying pipe 11, a sleeve tube 12 is movably sleeved on the outer wall of the conveying pipe 11, a rotating tube 8 is rotatably connected to the bottom end of the sleeve tube 12, an output groove 13 connected to the rotating tube 8 is opened on the lightweight rod 9, and the opening of the output groove 13 faces downward, and a driving member 14 is provided in the mixing tank 3 for drawing the high-alumina cement powder in the ball mill 6 into the conveying pipe 11, and for stirring and mixing the raw materials in the mixing tank 3 in a linked manner.

[0022] The driving member 14 includes a driving motor 15 fixedly mounted on the base 2. The driving motor 15 is preferably of model Y80M1-2. The output end of the driving motor 15 is coaxially fixedly connected with a driving shaft 16. A rotating disk 17 rotatably connected to the bottom of the mixing tank 3 is coaxially fixedly connected to the driving shaft 16. A plurality of groups of stirring rods 18 are evenly and fixedly connected to the rotating disk 17. The side wall of the lightweight rod 9 and the outer wall of the stirring rod 18 are slidably fitted in the vertical direction. The driving shaft 16 passes through the rotating tube 8 and is movably sleeved with the inner wall of the rotating tube 8. The outer wall of the driving shaft 16 is fixedly connected with an impeller 37 rotatably connected to the inner wall of the conveying pipe 11.

[0023] The processing mechanism 4 also includes a feed hopper 19 fixedly mounted on the calcining tube 5, a fixed frame 20 is fixedly connected to the mixing tank 3, the calcining tube 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 arranged in the ball mill 6, a plurality of groups of driving grooves 39 are evenly arranged on the inner wall of the ball mill 6, a conveying port 22 connected to the ball mill 6 is arranged at one end of the calcining tube 5 away from the feed hopper 19, a fixed plate 23 rotatably connected to one end of the ball mill 6 is fixedly connected to the outer wall of the calcining tube 5, one end of the conveying pipe 11 passes through the fixed plate 23 and is connected to the bottom side of the ball mill 6, and a conveying member 24 is arranged in the calcining tube 5 for pushing the raw material in the calcining tube 5 to the conveying port 22 in linkage when the drive shaft 16 rotates.

[0024] 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 driving shaft 16 passes through the conveying pipe 11 and is rotatably connected to the conveying pipe 11. The top end of the driving shaft 16 is coaxially fixedly connected to a first bevel gear 28 meshing with the second bevel gear 27, and the end of the driving shaft 16 away from the second bevel gear 27 is coaxially fixedly connected to the ball mill 6.

[0025] The spraying mechanism 10 includes a spraying robot arm 29 fixedly installed in the spray box 1, and the bottom side of the mixing tank 3 is connected to an output pipe 30 for conveying 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, and 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 plate 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.

[0026] A method for preparing a flame retardant and explosion-proof coating preparation device comprises the following steps: S1. The bauxite and lime are loaded into the calcining tube 5 in the same proportion for calcination 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; 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 through the lightweight rod 9 to fit the liquid surface and stirred and mixed; S3. The flame retardant and explosion-proof 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.

[0027] In this embodiment, bauxite and lime are loaded into the calcining tube 5 in the same proportion through the feeding hopper 19 for calcining, and the driving motor 15 is started to drive the driving shaft 16 to rotate. The driving shaft 16 drives the first bevel gear 28 so that the second bevel gear 27 drives the rotating shaft 25 to rotate, and the rotating shaft 25 drives the conveying screw 26 to convey the raw materials in the calcining tube 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, thereby completing the processing operation of high-aluminum cement.

[0028] During the rotation process, the driving shaft 16 will drive the impeller 37 to rotate at a high speed, thereby generating suction to draw the gas in the ball mill 6 into the mixing tank 3. Since the ball mill 6 is sleeved with 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 screen 38, and then the powder with the required particle size is transported to the mixing tank 3 for subsequent mixing and preparation operations.

[0029] 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 passes through the rotating tube 8 and the output groove 13 and is blown to the liquid surface. 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. While improving the mixing efficiency, there is no need to worry about the cement raw materials agglomerating and other phenomena affecting the subsequent mixing uniformity.

[0030] 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, and after being filtered by the first filter screen 31, it will 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.

[0031] 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-proof 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, reduce the cost and loss of raw material transportation, make full use of energy, improve production efficiency and reduce production costs.

[0032] 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 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, and when the spraying raw materials need to be prepared, a set proportion of clean water can be injected into the mixing tank 3.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for preparing a flame retardant and explosion-proof coating, characterized in that: include: A spray box (1), wherein a base (2) is fixedly connected to a side of the spray box (1), and a mixing tank (3) is fixedly connected to the base (2); Also includes: A processing mechanism (4), the processing mechanism (4) comprising a calcining cylinder (5) and a ball mill (6) mounted on the spray box (1), the inner wall of one end of the ball mill (6) being coaxially rotatably connected to one end of the calcining cylinder (5), bauxite and lime being loaded into the calcining cylinder (5) in the same proportion for calcining to produce clinker, and then the clinker being transported to the ball mill (6) for grinding to produce powdered high-alumina cement, thereby completing the synchronous processing of high-alumina cement; A preparation mechanism (7), the preparation mechanism (7) comprising a rotating tube (8) installed in the mixing tank (3), a plurality of groups of light rods (9) being evenly and fixedly connected to the side of the rotating tube (8), the bottom surface of the light rods (9) being horizontal, and used for sensing the liquid level in the mixing tank (3) through the light rods (9), and inputting the powdered high-alumina cement extracted from the ball mill (6) into the mixing tank (3) in accordance with the liquid level and stirring and mixing; A spraying mechanism (10), the spraying mechanism (10) being installed in the spraying box (1) and being used for spraying the flame retardant and explosion-proof coating mixed in the mixing tank (3) onto the surface of the product, and using the hot air extracted from the calcining cylinder (5) during the conveying process of the high-alumina cement to dry the surface of the product.

2. The device for preparing a flame retardant and explosion-proof coating according to claim 1, characterized in that: The preparation mechanism (7) further comprises a delivery pipe (11) fixedly mounted on the top of the mixing tank (3), the outer wall of the delivery pipe (11) being movably sleeved with a sleeve pipe (12), the rotating pipe (8) being rotatably connected to the bottom end of the sleeve pipe (12), the lightweight rod (9) being provided with an output groove (13) connected to the rotating pipe (8), the opening of the output groove (13) facing downward, and the mixing tank (3) being provided with a driving member (14) for pumping the high-alumina cement powder in the ball mill (6) into the delivery pipe (11) and for stirring and mixing the raw materials in the mixing tank (3) in a linked manner.

3. The device for preparing a flame retardant and explosion-proof coating according to claim 2, characterized in that: The driving member (14) comprises a driving motor (15) fixedly mounted on the base (2); the output end of the driving motor (15) is coaxially fixedly connected to a 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 and fixedly connected to the rotating disk (17); the side wall of the light rod (9) is slidably fitted with the outer wall of the stirring rod (18) in a vertical direction; the driving shaft (16) passes through the rotating tube (8) and is movably sleeved with the inner wall of the rotating tube (8).

4. The device for preparing a flame retardant and explosion-proof coating according to claim 3, characterized in that: The processing mechanism (4) further comprises a feed hopper (19) fixedly mounted on the calcining cylinder (5); a fixed frame (20) is 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 arranged in the ball mill (6); a delivery port (22) connected to the ball mill (6) is provided at one end of the calcining cylinder (5) away from the feed hopper (19); a fixed plate (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 delivery pipe (11) passes through the fixed plate (23) and is connected to the side surface of the bottom end of the ball mill (6); a delivery member (24) is arranged in the calcining cylinder (5) for pushing the raw materials in the calcining cylinder (5) toward the delivery port (22) when the drive shaft (16) rotates.

5. The device for preparing a flame retardant and explosion-proof coating according to claim 4, characterized in that: The conveying member (24) comprises a rotating shaft (25) rotatably connected to the calcining cylinder (5); 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 driving shaft (16) passes through the conveying tube (11) and is rotatably connected to the conveying tube (11); the top end of the driving shaft (16) is coaxially fixedly connected to a first bevel gear (28) meshing with the second bevel gear (27); and one end of the driving shaft (16) away from the second bevel gear (27) is coaxially fixedly connected to the ball mill cylinder (6).

6. The device for preparing a flame retardant and explosion-proof coating according to claim 2, characterized in that: The spraying mechanism (10) comprises a spraying mechanical arm (29) fixedly mounted in the spraying box (1); the bottom side of the mixing tank (3) is connected to an output pipe (30) for conveying the flame retardant and explosion-proof coating raw materials to the spraying mechanical arm (29); a first filter screen (31) is fixedly connected in the mixing tank (3); the sleeve pipe (12) passes through the first filter screen (31) and is movably sleeved with the inner wall of the first filter screen (31); and the upper side of the mixing tank (3) is connected to an exhaust pipe (32).

7. The device for preparing a flame retardant and explosion-proof coating according to claim 6, characterized in that: One end of the exhaust pipe (32) is connected to a drying plate (33), an exhaust hole (35) is provided on the side of the spray box (1), and a water inlet pipe (36) is connected to the side of the mixing tank (3).

8. The device for preparing a flame retardant and explosion-proof coating according to claim 3, characterized in that: An impeller (37) is fixedly connected to the outer wall of the drive shaft (16) and is rotatably connected to the inner wall of the delivery pipe (11).

9. The device for preparing a flame retardant and explosion-proof coating according to claim 2, characterized in that: A second filter screen (38) is fixedly connected to the inside of the delivery pipe (11), and a plurality of groups of driving grooves (39) are evenly arranged on the inner wall of the ball mill cylinder (6).

10. A method for preparing a flame retardant and explosion-proof coating according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Bauxite and lime are loaded into the calcining tube (5) in the same proportion for calcining to produce clinker, and then the clinker is transported to the ball mill (6) for grinding into powdered high-alumina cement, thereby completing the simultaneous processing of high-alumina cement; 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) through the lightweight rod (9) to fit the liquid surface and stirred and mixed; S3. The flame retardant and explosion-proof coating mixed in the mixing tank (3) is sprayed onto the surface of the product in the spray box (1) by the spraying mechanism (10), and the surface of the product is dried by using the hot air extracted from the calcining cylinder (5) during the transportation of high-alumina cement.

Images