A fireproof paint drying device

Abstract

The present application relates to the field of fireproof paint drying, in particular to a fireproof paint drying device, which comprises a drying box arranged across two guide rails and capable of moving along the length direction of the guide rails; the material to be dried is placed in the middle of the two guide rails; a plurality of air supply fans are arranged at the upper end of the drying box; the drying box cooperates with the air supply fans to dry the fireproof paint on the surface of each material one by one through hot air flow, which can avoid the problem of rapid drying and cracking of the fireproof paint, and the fireproof paint drying device has the advantages of simple structure, convenient operation, independence from weather, ability to perform drying operation at any time, ability to be assembled at the construction site, direct use after the fireproof paint on the surface of the material is dried, more convenient and flexible, avoidance of the trouble of secondary transportation, cost saving, and contribution to the improvement of construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of fire-retardant coating drying, specifically a fire-retardant coating drying apparatus. Background Technology

[0002] Fire-retardant coatings are special functional coatings applied to the surface of objects that can effectively delay or prevent the spread of fire. They form a protective layer in a fire through physical or chemical action, buying valuable fire-resistant time for the coated object and thus reducing fire losses.

[0003] Existing fire-retardant coatings are generally divided into two types: intumescent fire-retardant coatings and non-intumescent fire-retardant coatings. When heated to high temperatures, intumescent fire-retardant coatings expand and foam, forming a porous carbonized layer that blocks heat transfer to materials. At the same time, they release inert gases such as CO2 and NH, dilute oxygen, and absorb a large amount of heat through the decomposition of the coating components. Non-intumescent fire-retardant coatings rely on materials such as vermiculite and perlite to form a dense heat-insulating layer. The coating also contains aluminum hydroxide and magnesium hydroxide, which lower the temperature through a dehydration reaction to achieve a fire-retardant effect. They are currently used in many fields, such as spraying on the surface of steel structures in buildings or the surface of wooden materials in ancient buildings.

[0004] Whether it's intumescent or non-intumescent fire-retardant coatings, they are all mixed into a liquid state, then sprayed onto the surface of materials, and solidified on the surface through drying. Currently, after the fire-retardant coatings are sprayed onto the material surface, the specific drying methods are generally air drying or open flame baking. Natural air drying is greatly affected by the weather and has a lot of uncertainty, which will affect the delivery time of the materials. Open flame baking requires professional and skilled technicians to operate. Improper operation can lead to problems such as drying cracking or uneven drying, which directly affects the fire-retardant performance of the materials in the later stage.

[0005] Therefore, a fire-retardant coating drying device is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the fireproof coating drying device of the present invention includes a drying box that is arranged across two guide rails, and the drying box can move along the length of the guide rails;

[0008] The material to be dried is placed between two guide rails and at the bottom of the drying chamber;

[0009] The upper end of the drying box is provided with a plurality of air supply fans, the air inlets of the air supply fans are communicated with an air supply pipe, the air supply pipe is communicated with an external airflow drying machine, and the airflow drying machine continuously provides dry hot airflow for the air supply fans.

[0010] The two side plates of the drying box are rotationally provided with baffles for blocking the outflow of hot airflow in the drying box.

[0011] Preferably, a sliding groove is formed in the inner side of the guide rail, the sliding groove is formed along the length direction of the guide rail, a material plate is arranged in the sliding groove, a plurality of wheel bodies are rotationally connected to the two sides of the material plate and rollingly connected in the sliding groove, a plurality of support beams are arranged on the upper surface of the material plate and along the length direction of the material plate, and the material to be dried is placed perpendicularly to the support beams.

[0012] Preferably, drive assemblies for driving the movement of the drying box are arranged on the two sides of the guide rail, the drive assemblies comprise lead screws, the lead screws pass through the two ends of the drying box and are rotationally connected to the ends of the guide rail, and external drive motors are fixedly connected to the ends of the lead screws.

[0013] Preferably, the drying box comprises an outer shell and an inner shell, and a lifting assembly is arranged between the outer shell and the inner shell.

[0014] The lifting assembly comprises lead screws arranged at the two ends in the outer shell and threadedly connected to the outer sidewalls at the two ends of the inner shell.

[0015] A rectangular opening is formed in the upper end surface of the outer shell, the upper half of the inner shell can move up and down along the rectangular opening, a plurality of air supply fans are arranged on the upper end surface of the inner shell, and the lower end of the inner shell is used to cover the material to be dried.

[0016] Preferably, a first guide plate is symmetrically arranged on each of the inner sidewalls in the inner shell, one edge of each first guide plate is rotationally connected to the inner sidewall of the inner shell, and a torsional spring is arranged at the rotational connection point between the first guide plate and the inner shell.

[0017] A plurality of limiting plates are arranged on the surfaces of the first guide plates opposite to the inner sidewalls of the inner shell, and the limiting plates are used to separate a gap between the first guide plates and the inner sidewalls.

[0018] Preferably, a second guide plate is symmetrically arranged on each of the inner sidewalls in the inner shell, the second guide plate is arranged below the first guide plate, one edge of each second guide plate is rotationally connected to the inner sidewall of the inner shell, and a push-pull rod is rotationally connected to the other edge of each second guide plate, and the end of the push-pull rod is rotationally connected to the first guide plate.

[0019] Preferably, two flow distribution plates are symmetrically arranged on the top of the inner shell, the flow distribution plates are arranged along the length direction of the inner shell, and the two flow distribution plates are arranged in an "eight" shape.

[0020] Preferably, gears are symmetrically arranged at two ends of the outer shell, the gears are fixed to end portions of rotating shafts of the baffles, the gears are externally engaged with racks, upper ends of the racks are fixed to a position on an upper end face of the inner shell through a cross beam.

[0021] Preferably, a sliding hole in the shape of a strip is formed on each of the racks, the sliding hole is formed along a length direction of the rack, a reinforcing rod is arranged in the sliding hole of each of the two adjacent racks, end portions of the reinforcing rod are slidingly connected in the sliding hole, and the reinforcing rod is fixed to an outer side wall of the outer shell at a middle position.

[0022] Preferably, touch switches for controlling start and stop of the air supply fan are arranged on the upper end face of the outer shell, the touch switches are arranged on one side of the rectangular opening, an elastic extrusion rod is arranged above each of the touch switches, and end portions of the elastic extrusion rods are fixed to the outer shell of the air supply fan.

[0023] The fireproof coating drying device has the advantages that:

[0024] 1. In the fireproof coating drying device, the drying box cooperates with the air supply fan to dry the fireproof coating on each material surface one by one, and the drying is performed by hot air flow, so that the problem of cracking of the fireproof coating due to rapid drying can be avoided. The fireproof coating drying device has simple structure and is convenient to operate, and the drying operation can be performed at any time without dependence on weather. Furthermore, the fireproof coating drying device can be assembled at a construction site, and after the fireproof coating on the material surface is dried, the material can be directly used for construction, which is more convenient and flexible, avoids the trouble of secondary transportation, saves cost, and helps to improve the construction efficiency.

[0025] 2. In the fireproof coating drying device, the material plate cooperates with the drying box to perform the feeding and feeding operations on the material plate in advance, so that the material sprayed with the fireproof coating is prepared, time is saved, and efficiency is improved. Meanwhile, the prepared material can be preliminarily dried in a natural environment, and there is enough time to regularly place the material and check the spraying condition of the fireproof coating on the material surface. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 FIG. 1 is a perspective view of the fireproof coating drying device according to the present application;

[0027] Figure 2 FIG. 4 is a schematic view of the external shape of the drying box according to the present application;

[0028] Figure 3 FIG. 5 is a front view of the frame structure of the drying box according to the present application;

[0029] Figure 4 FIG. 6 is a perspective view of the frame structure of the drying box according to the present application;

[0030] Figure 5 FIG. 7 is a top view of the fireproof coating drying device according to the present application;

[0031] Figure 6 is a perspective view of the material plate in the present application;

[0032] Figure 7 is a first perspective view of the drying box in the present application;

[0033] Figure 8 is a second perspective view of the drying box in the present application;

[0034] Figure 9 is a front view of the drying box in the present application;

[0035] Figure 10 is a sectional view of the drying box in the present application;

[0036] Figure 11 is a sectional view of the outer shell in the present application;

[0037] Figure 12 is a perspective view of the outer shell in the present application;

[0038] Figure 13 is a perspective view of the inner shell in the present application;

[0039] Figure 14 is a perspective view of the cooperation between the first guide plate and the second guide plate in the present application.

[0040] In the figure: 101, material; 1, drying box; 2, guide rail; 3, air supply fan; 4, recess; 5, baffle; 6, material plate; 7, wheel body; 8, support beam; 9, screw rod; 10, outer shell; 11, inner shell; 12, screw rod; 13, rectangular port; 14, first guide plate; 15, limiting plate; 16, second guide plate; 17, push-pull rod; 18, flow dividing plate; 19, gear; 20, rack; 21, sliding hole; 22, reinforcing rod; 23, touch switch; 24, telescopic extrusion rod; 25, secondary guide rail. DETAILED DESCRIPTION

[0041] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0042] REFERENCE Figures 1-8A fire-retardant coating drying device includes a drying chamber 1 mounted on a guide rail 2, the drying chamber 1 spanning the guide rail 2, with the material 101 to be dried placed in the middle of the guide rail 2; multiple air supply fans 3 are installed at the upper end of the drying chamber 1 to inject external hot air into the drying chamber 1; baffles 5 are rotatably mounted on both sides of the drying chamber 1. Specifically, in implementation, recesses 4 are opened on both sides of the drying chamber 1, and baffles 5 are installed in the recesses 4. A rotating shaft on the upper edge of the baffle 5 is rotatably connected to the recess 4, so that the baffles 5 are rotatably mounted on both sides of the drying chamber 1. When the baffles 5 are in a vertical state, they are used to block the recesses 4 on both sides of the drying chamber 1, reducing the outflow of hot air from the drying chamber 1; when the baffles 5 are in an open state, that is, when the baffles 5 are flipped outwards to both sides of the drying chamber 1, the drying chamber 1 is opened to facilitate the entry and exit of the material 101.

[0043] Furthermore, a detailed description will be provided in conjunction with specific embodiments. Figure 3 and Figure 4 The thick black line represents the steel frame structure of the drying oven 1. Figure 3 and Figure 4 The thin line represents the angle steel support structure in the drying oven 1, taking the drying oven 1 as an example with an overall length of 5 meters, a height of 1.2 meters, and a width of 1 meter; Figure 3 and Figure 4 This is a frame structure diagram of drying oven 1. During implementation, the external shape of drying oven 1 is as follows: Figure 2 As shown, rollers adapted to guide rails 2 are provided on both sides of the bottom of the drying box 1, so that the drying box 1 can move along the length of the guide rails 2. Multiple air supply fans 3 are provided on the top of the drying box 1. The air inlet of each air supply fan 3 is connected to an air supply pipe, which is connected to an external airflow dryer. The airflow dryer continuously provides dry and hot airflow to the air supply fans 3, and the airflow dryer can adjust the temperature of the airflow, so that a suitable temperature can be flexibly injected into the drying box 1 under different weather conditions.

[0044] In the above embodiment, material 101 can specifically be an I-beam. First, fire-retardant coating is sprayed onto the surface of material 101. When the fire-retardant coating is wet but not dripping, it is then fed between two guide rails 2 and dried in a drying oven 1.

[0045] The specific operation of this fire-retardant coating drying device is as follows:

[0046] For feeding, first move the drying box 1 to one end of the guide rail 2, then place the material 101 between the two guide rails 2, placing the material 101 perpendicular to the length direction of the guide rail 2, with the same distance between adjacent materials 101.

[0047] Drying, respectively open the baffle 5 of both sides of the drying box 1, make the baffle 5 turn outwards and then move the drying box 1, when the drying box 1 moves above the first material 101, loosen the baffle 5, the baffle 5 turns down and covers the material 101 in the drying box 1, then drive the air supply fan 3, the air supply fan 3 blows dry hot air into the drying box 1, the hot air fully contacts the fireproof paint on the surface of the material 101, and realizes uniform drying and evaporation of the water in the fireproof paint;

[0048] When the material 101 is dried, open the baffle 5 again, then push the drying box 1 to move above the next material 101, loosen the baffle 5, the baffle 5 turns down and covers the material 101 in the drying box 1, then drive the air supply fan 3, the air supply fan 3 blows dry hot air into the drying box 1, the dry hot air blows on the surface of the material 101 to dry the fireproof paint, and the above operation is repeated;

[0049] Discharging, after the drying process of the fireproof paint on the surface of the current material 101 is completed, the temperature of the material 101 is lowered, then the material 101 is discharged, and then a new material 101 to be dried is placed;

[0050] The drying box 1 cooperates with the air supply fan 3 to dry the fireproof paint on the surface of each material 101, which can avoid the problem of rapid drying and cracking of the fireproof paint, and the fireproof paint drying device has the advantages of simple structure, convenient operation, no dependence on weather, and the ability to dry at any time. In addition, the fireproof paint drying device can be assembled at the construction site, and after the fireproof paint on the surface of the material 101 is dried, it can be directly used for construction, which is more convenient and flexible, avoids the trouble of secondary transportation, saves cost, and helps to improve the efficiency of building construction;

[0051] When designing the drying box 1, it is also considered to set the drying box 1 to dry multiple materials 101 at a time, that is, to set the drying box 1 to a structure with a larger width, which can cover multiple materials 101 at a time. However, this structure can speed up the processing efficiency of the material 101, but it may have some drawbacks in some aspects.

[0052] For example, in terms of hot air resources, a structure with a larger width requires more hot air resources to be injected at a time, and needs to be maintained for a long time to reach the preset drying temperature of the fireproof paint. In addition, the structure exchanges heat with the outside environment, which increases the waste of air resources.

[0053] For example, in terms of processing convenience, a structure box with a larger width needs to occupy more space when laid out, and is not flexible to operate. In this embodiment, the designed fireproof paint drying device is more suitable for operation on the construction site, has smaller quality, is flexible and convenient to operate, and can be directly put into use after the drying of the fireproof paint on the surface of the material 101 is completed, reducing the intermediate transportation link and avoiding damage to the fireproof paint on the surface of the material 101.

[0054] With reference to Figures 1-8 , a sliding groove is formed in the inner side of the guide rail 2, the sliding groove is formed along the length direction of the guide rail 2, a material plate 6 is arranged in the sliding groove, a plurality of wheel bodies 7 are rotatably connected to the two sides of the material plate 6, the wheel bodies 7 are rollingly connected in the sliding groove, a plurality of support beams 8 are arranged on the upper surface of the material plate 6, the support beams 8 are arranged along the length direction of the material plate 6, and the materials 101 to be dried are placed vertically to the support beams 8;

[0055] The two ends of the guide rail 2 are extended to be provided with auxiliary guide rails 25, and the auxiliary guide rails 25 are used to provide support for the moving stroke of the material plate 6; in this embodiment, the material plate 6 is divided into two areas left and right, as shown in Figure 5 , the left half of the material plate 6 can be divided into an upper and lower material area, and the right half of the material plate 6 can be divided into a drying area. In the drying area, the drying box 1 cooperates with the air supply fan 3 to dry the fireproof paint on the surface of each material 101 one by one. When all the materials 101 in the drying area are dried, the material plate 6 is moved to a state of coinciding with the guide rail 2. At this time, the left half of the material plate 6 is moved to the right side of the guide rail 2. At this time, the drying box 1 cooperates with the air supply fan 3 to perform drying operation on the materials 101 on the left half of the material plate 6, and the materials 101 on the right half of the material plate 6 that have been dried are unloaded. After unloading, new materials 101 to be dried are placed one by one. At this time, the right half is ready for loading, and the materials 101 are ready for drying operation. The materials 101 are prepared in advance to save time and improve efficiency. At the same time, the materials 101 on the right side can be preliminarily dried in the natural environment, and there is enough time to arrange the materials 101, check the spraying condition of the fireproof paint on the surface of the materials 101, and the like. When the left half of the material plate 6 is moved to the left side of the guide rail 2, the unloading and loading are performed in turn, and the materials 101 are prepared.

[0056] With reference to Figures 1-13 , drive assemblies for driving the movement of the drying box 1 are arranged on the two sides of the guide rail 2. The drive assembly includes a lead screw 9, the lead screw 9 penetrates through the two ends of the drying box 1, the end of the lead screw 9 is rotatably connected to the end of the guide rail 2, and an external drive motor is fixedly connected to the end of the lead screw 9;

[0057] The drying box 1 moves on the guide rail 2, and each moving stroke of the drying box 1 affects the interval between the drying box 1 and each material 101, when the drying box 1 moves to the middle position above each material 101, the side plates on both sides of the drying box 1 are symmetrically distributed on both sides of the material 101, and the airflow uniformly flows along the surface of the material 101, so that the fireproof paint on the surface of the material 101 can be fully dried. Therefore, a driving assembly for accurately controlling the movement of the drying box 1 is arranged, that is, the lead screw 9 cooperates with an external driving motor, and the driving motor can intermittently drive the lead screw 9 to rotate forward or reverse. For example, when the driving motor drives the lead screw 9 to rotate forward, the drying box 1 can be moved from the left end position of the guide rail 2 to the right end position thereof, and when the driving motor drives the lead screw 9 to rotate reversely, the drying box 1 can be moved from the right end position of the guide rail 2 to the left end position thereof.

[0058] The driving motor accurately drives the lead screw 9 to rotate a number of turns, so that the drying box 1 can accurately move to the position directly above each material 101, and the two baffles 5 can be symmetrically distributed on both sides of the material 101, so that the airflow can uniformly flow along the surface of the material 101, and the uniformity of drying the fireproof paint on the surface of the material 101 is improved.

[0059] With reference to Figures 1-13 The drying box 1 comprises an outer shell 10 and an inner shell 11, and a lifting assembly is arranged between the outer shell 10 and the inner shell 11.

[0060] The lifting assembly comprises a screw rod 12 arranged at both ends in the outer shell 10, and the screw rod 12 is threadedly connected to the outer walls at both ends of the inner shell 11.

[0061] A rectangular opening 13 is formed in the upper end face of the outer shell 10, the upper half of the inner shell 11 can move up and down along the rectangular opening 13, a plurality of air supply fans 3 are arranged on the upper end face of the inner shell 11, and the lower end of the inner shell 11 is used to cover the material 101 to be dried.

[0062] The drying box 1 is arranged as an inner and outer double-shell structure, the inner shell 11 is used to cover the material 101, and the outer shell 10 is used to play a heat preservation role, so as to reduce the efficiency of heat exchange between the inside of the drying box 1 and the outside, and reduce the waste of hot airflow gas resources. Specifically, the drying box 1 is moved to the middle position above the material 101, the baffle 5 is released, and then the screw rod 12 is driven to rotate. In the embodiment, the screw rod 12 can be driven to rotate by an external motor, and the motor can drive the screw rod 12 to rotate forward and reversely. When the motor drives the screw rod 12 to rotate forward, the screw rod 12 drives the inner shell 11 to move downward, and the inner shell 11 covers the material 101. Then the air supply fan 3 is driven, the airflow is injected into the inner shell 11, and the fireproof paint on the surface of the material 101 is dried.

[0063] With reference to Figures 1-14, the inner shell 11 is provided with a number of limiting plates 15 on the surface opposite to the side wall of the inner shell 11, the limiting plates 15 are used to separate a gap between the number one guide plate 14 and the side wall of the inner shell 11;

[0064] The number one guide plate 14 is provided with a number of limiting plates 15 on the surface opposite to the side wall of the inner shell 11, the limiting plates 15 are used to separate a gap between the number one guide plate 14 and the side wall of the inner shell 11;

[0065] Similar to the two side surfaces of the material 101, when the hot air flow impacts downward, the hot air flow cannot effectively contact the side wall of the material 101, therefore, the number one guide plate 14 is provided, the number one guide plate 14 can guide the hot air flow to impact on the side wall of the material 101; the end of the number one guide plate 14 is rotatably connected to the end surface of the inner shell 11 by the torsional spring, when the number one guide plate 14 is in the initial state, the number one guide plate 14 is pressed on the inner side wall of the inner shell 11 by the limiting plate 15, when the hot air flow is injected into the inner shell 11, the hot air flow flows along the side wall of the inner shell 11 and impacts into the gap between the number one guide plate 14 and the side wall of the inner shell 11, and deflects the number one guide plate 14, as shown in the figure, the hot air flow flows along the upper surface of the number one guide plate 14, the hot air flow impacts on the side wall of the material 101, and dries the fireproof coating on the uneven surface of the side wall of the material 101; when the air supply fan 3 stops running, the number one guide plate 14 rotates and resets under the torsional force of the torsional spring connected thereto, at this time, the space in the inner shell 11 is released, when the inner shell 11 moves upward, the number one guide plate 14 avoids scratching the material 101 with the inner shell 11. Figure 5

[0066] Refer to Figures 1-14 , the inner shell 11 is provided with a number of limiting plates 15 on the surface opposite to the side wall of the inner shell 11, the limiting plates 15 are used to separate a gap between the number one guide plate 14 and the side wall of the inner shell 11;

[0067] The number two guide plate 16 is connected to the number one guide plate 14 by the push-pull rod 17, and the number one guide plate 14 is unfolded, as shown in the figure, the hot air flow flows along the number one guide plate 14, and then flows along the surface of the number two guide plate 16, and the hot air flow is guided to the lower side of the material 101, and the material 101 is erected on the material plate 6 by the support beam 8, and a gap is left between the lower surface of the material 101 and the material plate 6, at this time, the hot air flow flowing along the number two guide plate 16 flows into the gap, and dries the fireproof coating on the bottom of the material 101, and the fireproof coating on the surface of the material 101 is dried in all directions. Figure 10

[0068] Refer to​​Figures 1-14 Two flow distribution plates 18 are symmetrically arranged on the inner top of the inner shell 11, and the two flow distribution plates 18 are arranged along the length direction of the inner shell 11 and are arranged in the shape of an "eight";

[0069] The flow distribution plates 18 arranged inside the inner shell 11 are used for uniform distribution of the hot air flow, and the hot air flow is divided into multiple flow paths to avoid the hot air flow from impacting on the upper surface of the material 101, so that the fireproof paint on the upper surface of the material 101 is not dried sharply and is not prone to cracking. The hot air flow distributed to the two sides of the inner shell 11 can flow along the side wall of the inner shell 11, and the hot air flow can impact on the first flow guide plate 14 to open the first flow guide plate 14 and the second flow guide plate 16, so that the hot air flow can contact the fireproof paint sprayed on the surface of the material 101 from all directions.

[0070] Referring to Figures 1-12 Two gears 19 are symmetrically arranged at the two ends of the outer shell 10, the gears 19 are fixedly connected to the end portion of the rotating shaft of the baffle 5, the gears 19 are externally meshed with a rack 20, and the upper end of the rack 20 is fixedly connected to the upper end face of the inner shell 11 through a cross beam;

[0071] The gears 19 arranged in cooperation with the rack 20 are used to drive the rotation of the baffle 5. When the drying of the fireproof paint on the surface of a certain material 101 is completed, the inner shell 11 is driven to move upward, the inner shell 11 drives the rack 20 to move upward, and the rack 20 drives the gears 19 to rotate by rubbing. The gears 19 deflect the baffle 5 through the rotating shaft, and then the baffle 5 is gradually opened. Then the lead screw 9 is driven to move the drying box 1. When the drying box 1 moves to the upper side of the next material 101, the inner shell 11 is driven to move downward, the inner shell 11 drives the rack 20 to move downward, the rack 20 drives the gears 19 to rotate, the gears 19 drive the baffle 5 to deflect through the rotating shaft, and then the baffle 5 is gradually closed. At this time, the inner shell 11 covers the material 101, and the two sides of the outer shell 10 are blocked by the baffle 5;

[0072] Through the upward and downward movement of the inner shell 11, the opening and closing of the baffle 5 are driven, linkage design is adopted, operation is optimized, the contact opportunity between the workers and the fireproof paint drying device is reduced, and safety is improved.

[0073] Referring to Figures 1-12 A sliding hole 21 in the shape of a strip is formed in each rack 20, the sliding hole 21 is formed along the length direction of the rack 20, a reinforcing rod 22 is arranged in the sliding hole 21 in the adjacent two racks 20, the end portion of the reinforcing rod 22 is slidingly connected in the sliding hole 21, and the middle position of the reinforcing rod 22 is fixedly connected to the outer side wall of the outer shell 10;

[0074] The reinforcing rod 22 arranged on the outer shell 10 is used to stabilize the movement of the rack 20. The end portion of the reinforcing rod 22 slides along the sliding hole 21 on the rack 20 to constrain the swing of the rack 20, so that the rack 20 can be stably meshed with the gear 19 when the rack 20 moves upward and downward, and the stability of force transmission is ensured.

[0075] Referring to Figures 1-10 The upper end surface of the shell 10 is provided with a touch switch 23 for controlling the start and stop of the air supply fan 3, and the touch switch 23 is arranged on one side of the rectangular opening 13, and the upper end of each touch switch 23 is provided with a telescopic extrusion rod 24, and the end of each telescopic extrusion rod 24 is fixedly connected to the shell 10 of the air supply fan 3.

[0076] A plurality of touch switches 23 are arranged on the shell 10, and each touch switch 23 controls one air supply fan 3, when the inner shell 11 moves up, the inner shell 11 drives the telescopic extrusion rod 24 to move up, at this time the lower end of the telescopic extrusion rod 24 no longer extrudes the touch switch 23, the touch switch 23 is disconnected, and the power supply of the air supply fan 3 is stopped, and the air supply fan 3 is temporarily stopped running;

[0077] When the inner shell 11 moves down, the inner shell 11 drives the telescopic extrusion rod 24 to move down, at this time the lower end of the telescopic extrusion rod 24 extrudes the touch switch 23, the touch switch 23 is closed, and the power supply circuit of the air supply fan 3 is turned on; through the up and down movement of the inner shell 11, the start and stop of the air supply fan 3 are realized, and the effective control of the hot gas flow gas resource is facilitated.

[0078] In summary, in the present application, the designed fireproof paint drying device can dry the fireproof paint on the surface of each material 101 one by one through the movable drying box 1 cooperating with the air supply fan 3, which can avoid the problem of rapid drying and cracking of the fireproof paint, and at the same time, the fireproof paint drying device does not depend on the weather, and can dry the fireproof paint sprayed on the surface of the material 101 at any time. In addition, the fireproof paint drying device can be assembled at the construction site, and after the fireproof paint on the surface of the material 101 is dried, it can be directly used for construction, which is more convenient and flexible, avoids the trouble of secondary transportation, saves cost, and helps to improve the construction efficiency.

[0079] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A fire retardant paint drying apparatus characterised in that: The dryer comprises a drying box arranged on two guide rails and capable of moving along the length direction of the guide rails; The material to be dried is placed between the two guide rails and at the bottom of the drying box; A plurality of air supply fans are arranged at the upper end of the drying box, the air inlet of the air supply fan is connected with an air supply pipe, the air supply pipe is connected with an external airflow dryer, and the airflow dryer continuously provides dry hot airflow for the air supply fan; The two side plates of the drying box are rotationally provided with baffles for blocking the outflow of hot airflow in the drying box; A sliding groove is formed in the inner side of the guide rail and extends along the length direction of the guide rail, a material plate is arranged in the sliding groove, a plurality of wheel bodies are rotationally connected to the two sides of the material plate and rollingly connected in the sliding groove, a plurality of support beams are arranged on the upper surface of the material plate and extend along the length direction of the material plate, and the material to be dried is placed perpendicularly to the support beams; A driving assembly for driving the movement of the drying box is arranged on the two sides of the guide rail, the driving assembly comprises a screw rod, the screw rod penetrates through the two ends of the drying box, the end of the screw rod is rotationally connected to the end of the guide rail, and an external driving motor is fixedly connected to the end of the screw rod. The drying box comprises an outer shell and an inner shell, and a lifting assembly is arranged between the outer shell and the inner shell; The lifting assembly comprises a screw rod arranged at the two ends in the outer shell, and the screw rod is threadedly connected to the outer two end sidewalls of the inner shell; A rectangular opening is formed in the upper end surface of the outer shell, the upper half of the inner shell can move up and down along the rectangular opening, a plurality of air supply fans are arranged on the upper end surface of the inner shell, and the lower end opening of the inner shell is used for covering the material to be dried; A first guide plate is symmetrically arranged on the inner sidewall of the inner shell, one edge of each first guide plate is rotationally connected to the inner sidewall of the inner shell, and a torsional spring is arranged at the rotation connection point between the first guide plate and the inner shell; A plurality of limiting plates are arranged on the surfaces of the first guide plate and the inner sidewall of the inner shell, and the limiting plates are used for spacing a gap between the first guide plate and the inner sidewall of the inner shell; A second guide plate is symmetrically arranged on the inner sidewall of the inner shell, the second guide plate is arranged below the first guide plate, one edge of each second guide plate is rotationally connected to the inner sidewall of the inner shell, and the other edge of each second guide plate is rotationally connected with a push-pull rod, and the end of the push-pull rod is rotationally connected to the first guide plate; A gear is symmetrically arranged at the two ends of the outer shell, the gear is fixedly connected to the end of the rotation shaft of the baffle, a rack is engaged with the outside of the gear, and the upper end of the rack is fixedly connected to the upper end surface of the inner shell by a cross beam.

2. A fire retardant paint drying apparatus as claimed in claim 1, wherein: Two flow distribution plates are symmetrically arranged on the inner top of the inner shell, the flow distribution plates extend along the length direction of the inner shell, and the two flow distribution plates are arranged in an "8" shape.

3. A fire retardant paint drying apparatus as claimed in claim 1, wherein: A strip-shaped sliding hole is formed in each rack, the sliding hole extends along the length direction of the rack, a reinforcing rod is arranged in the sliding hole of the two adjacent racks, the end of the reinforcing rod is slidably connected in the sliding hole, and the middle of the reinforcing rod is fixedly connected to the outer sidewall of the outer shell.

4. A fireproof paint drying apparatus according to claim 3, wherein: A touch switch for controlling the start and stop of the air supply fan is arranged on the upper end surface of the outer shell, the touch switch is arranged on one side of the rectangular opening, a telescopic extrusion rod is arranged above each touch switch, and the end of each telescopic extrusion rod is fixedly connected to the outer shell of the air supply fan.

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