Electric heating dryer

Abstract

The utility model discloses an electric heating drying machine which comprises a drying chamber, an electric heating device, an electric heating device and an electric heating device. A feeding port is fixedly formed in one side of the drying chamber, and a discharging port is fixedly formed in the other side of the drying chamber; the guide unit is arranged in the inner cavity of the drying chamber, and the guide unit is used for guiding and moving the coating; the coating drying device is used for heating and drying a coating, meanwhile, the coating is dried in a hot air drying mode, further, the heating unit is introduced for drying the coating, and during drying, gradual heating can be conducted in a staged mode, so that the heating unit is gradually heated from the low temperature to the high temperature for drying; therefore, the problem that the outer surface is dried and cured but the interior is not fully dried due to sudden temperature rise when the thicker coating is dried in a common drying machine is effectively avoided.

Description

Technical Field

[0001] The present application relates to an electric drying machine. Background Art

[0002] Fire retardant coating is a type of coating applied to the surface of an object to prevent fire, stop the spread of fire, or isolate the source of fire, prolong the ignition time of the substrate, or increase the insulation performance to delay the structural damage time. The substrate of fire retardant coating is generally inorganic materials, such as mica, gypsum, silicate, etc. These materials have good high temperature resistance and flame retardant properties. When processing fire retardant coating, the fire retardant coating on the surface of the fabric needs to be heated and dried.

[0003] The existing patent document "CN218781567U electric heating blast dryer" discloses a blast dryer. Although this blast dryer can perform hot air drying on the coating, when the coating enters the high-temperature dryer for thicker coating, the coating on the coating surface will solidify quickly due to the sudden increase in temperature. Due to the high coating thickness, the inside is prone to incomplete and uneven drying.

[0004] That is, the prior art has the following technical problems: when a common air blast dryer heats and dries a thick coating, the inside is prone to incomplete and uneven drying. Therefore, an electric heating dryer is proposed to address the above problem. Summary of the invention

[0005] In this embodiment, an electric drying machine is provided to solve the problem that when a common air blast drying machine in the prior art heats and dries a thick coating, the drying inside the machine is prone to be incomplete and uneven.

[0006] According to one aspect of the present application, an electric heat dryer is provided, the electric heat dryer comprising:

[0007] A drying chamber, wherein a feed port is fixedly disposed on one side of the drying chamber, and a discharge port is fixedly disposed on the other side of the drying chamber;

[0008] A guide unit, the guide unit is arranged in the inner cavity of the drying chamber, and the guide unit is used to guide the coating;

[0009] A heating unit is fixedly arranged in the inner cavity of the drying chamber, and the heating unit can gradually heat the coating in stages, and the heating unit is hot air heating.

[0010] Furthermore, limiting guide rollers are arranged on both sides of the inner cavity of the drying chamber, and the limiting guide rollers are rotatably connected to the inner cavity wall of the drying chamber.

[0011] Furthermore, the guide unit comprises an upper guide roller and a lower guide roller, and the upper guide roller and the lower guide roller are respectively arranged at upper and lower sides of the inner cavity of the drying chamber and are rotatably connected to the drying chamber.

[0012] Furthermore, the upper guide rollers and the lower guide rollers are distributed alternately in the inner cavity of the drying chamber.

[0013] Furthermore, the arcuate surfaces of the upper guide roller and the lower guide roller are both wrapped and fixedly provided with cotton covers, and the interior of the cotton covers is impregnated with paint.

[0014] Furthermore, the heating unit includes a fixed shell, an inner shell, an air outlet, an air outlet pipe, a heating resistor wire A, a heating resistor wire B and a heating resistor wire C. Two heating units are provided, and the two heating units are respectively fixed on the upper and lower walls of the inner cavity of the drying chamber.

[0015] Furthermore, the fixed shell is fixedly connected to the inner cavity wall of the drying chamber, an inner shell is fixedly arranged in the inner cavity of the fixed shell, and a plurality of air outlet holes are arranged on the inner cavity upper wall of the inner shell.

[0016] Furthermore, a plurality of air outlet pipes are fixedly provided on the upper wall of the inner cavity of the fixed shell, and the plurality of air outlet pipes are arranged at equal distances.

[0017] Furthermore, a heating resistance wire C is fixedly installed in the inner cavity of the air outlet duct at both ends, a heating resistance wire B is fixedly installed in the inner cavity of the air outlet duct at both sides, and a heating resistance wire A is fixedly connected in the inner cavity of the air outlet duct located in the middle. The heating resistance wire A, the heating resistance wire B and the heating resistance wire C are all spiral-shaped, and the lengths of the heating resistance wire C, the heating resistance wire B and the heating resistance wire A increase sequentially.

[0018] Furthermore, an air supply duct is connected to the inner cavity of the inner shell, a connecting duct is connected to the air supply duct, and the connecting duct is externally connected to a fan.

[0019] The above-mentioned embodiments of the present application are used to heat and dry the coating. At the same time, the present application dries the coating by hot air drying. Furthermore, the present application introduces a heating unit to dry the coating. During drying, the heating can be gradually carried out in stages, so that the heating unit gradually increases from a low temperature to a high temperature for drying, thereby effectively avoiding the problem that when a thicker coating is dried in an ordinary dryer, the outer surface is dried and solidified but the inside is not fully dried due to a sudden increase in temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A schematic diagram of a three-dimensional internal structure of an embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the internal structure of a cotton cover according to an embodiment of the present application;

[0024] Figure 4 This is a schematic diagram of the structure of a heating unit according to an embodiment of the present application;

[0025] Figure 5 This is a schematic diagram of the connection of an air supply duct according to an embodiment of the present application.

[0026] In the figure:

[0027] Drying chamber 1, feed port 101, discharge port 102, fixed base 103, limiting guide roller 104;

[0028] Guide unit 2, upper guide roller 201, lower guide roller 202; cotton cloth cover 203;

[0029] Coating 3;

[0030] Heating unit 4, fixed shell 401, inner shell 402, air outlet 403, air outlet pipe 404, heating resistor A 405, heating resistor B 406, heating resistor C 407;

[0031] Air delivery duct 5, connecting duct 6. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0035] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0036] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] See also Figure 1-5 As shown, the electric drying machine comprises:

[0038] A drying chamber 1, wherein a feed port 101 is fixedly disposed at one side of the drying chamber 1, and a discharge port 102 is fixedly disposed at the other side of the drying chamber 1;

[0039] A guide unit 2, wherein the guide unit 2 is disposed in the inner cavity of the drying chamber 1 and is used to guide the coating 3;

[0040] A heating unit 4, wherein the heating unit 4 is fixedly arranged in the inner cavity of the drying chamber 1, and the heating unit 4 can gradually heat the coating 3 in stages, and the heating unit 4 is hot air heating;

[0041] Through the above technical scheme, the coating 3 is dried by hot air drying. Furthermore, the present application introduces a heating unit 4 to dry the coating 3. During drying, the heating can be gradually performed in stages, so that the heating unit 4 gradually increases from a low temperature to a high temperature for drying, thereby effectively avoiding the problem that when a thicker coating 3 is dried in an ordinary dryer, the outer surface is dried and solidified but the inside is not fully dried due to a sudden increase in temperature.

[0042] The inner cavity of the drying chamber 1 is provided with limiting guide rollers 104 on both sides thereof, and the limiting guide rollers 104 are rotatably connected to the inner cavity wall of the drying chamber 1. The limiting guide rollers 104 can guide the coating 3 during its movement in the inner cavity of the drying chamber 1.

[0043] The guide unit 2 includes an upper guide roller 201 and a lower guide roller 202, and the upper guide roller 201 and the lower guide roller 202 are respectively arranged at the upper and lower sides of the inner cavity of the drying chamber 1 and are rotatably connected to the drying chamber 1;

[0044] The upper guide rollers 201 and the lower guide rollers 202 are staggered in the inner cavity of the drying chamber 1. Through the technical solution, the staggered upper guide rollers 201 and the lower guide rollers 202 can make the coating 3 move in the inner cavity of the drying chamber 1 in a wave shape, thereby increasing the residence time of the coating 3 in the inner cavity of the drying chamber 1, increasing the area of ​​hot air drying, and thus improving the drying efficiency;

[0045] The arc-shaped surfaces of the upper guide roller 201 and the lower guide roller 202 are both wrapped and fixed with a cotton sleeve 203, and the interior of the cotton sleeve 203 is soaked with paint. Through the technical solution, when the guide unit 2 guides the coating 3, the reduction of the paint on the surface of the coating 3 due to friction contact can be effectively avoided. Through the setting of the cotton sleeve 203, during the contact and friction between the coating 3 and the cotton sleeve 203, since the cotton sleeve 203 itself is soaked with a certain amount of paint, the paint can be further coated on the surface of the coating 3 during the contact with the coating 3, thereby avoiding the reduction of the paint on the surface of the coating 3 due to contact friction and extrusion;

[0046] The heating unit 4 includes a fixed shell 401, an inner shell 402, an air outlet 403, an air outlet pipe 404, a heating resistor wire A405, a heating resistor wire B406 and a heating resistor wire C407. Two heating units 4 are provided, and the two heating units 4 are respectively fixed at the upper and lower walls of the inner cavity of the drying chamber 1. Through the technical solution, the upper and lower surfaces of the coating 3 can be evenly dried with hot air through the heating unit 4;

[0047] The fixed shell 401 is fixedly connected to the inner cavity wall of the drying chamber 1, an inner shell 402 is fixedly arranged in the inner cavity of the fixed shell 401, and a plurality of air outlet holes 403 are arranged on the upper wall of the inner cavity of the inner shell 402; a plurality of air outlet pipes 404 are fixedly arranged on the upper wall of the inner cavity of the fixed shell 401, and the plurality of air outlet pipes 404 are arranged at equal distances;

[0048] A heating resistance wire C407 is fixedly arranged in the inner cavity of the air outlet pipe 404 at both ends, a heating resistance wire B406 is fixedly arranged in the inner cavity of the air outlet pipe 404 at both sides, and a heating resistance wire A405 is fixedly connected to the inner cavity of the air outlet pipe 404 at the middle part. The heating resistance wire A405, the heating resistance wire B406 and the heating resistance wire C407 are all spiral-shaped, and the lengths of the heating resistance wire C407, the heating resistance wire B406 and the heating resistance wire A405 increase in sequence. Through the technical solution, different heating temperatures can be achieved through heating resistance wires of different forms;

[0049] An air delivery duct 5 is connected to the inner cavity of the inner shell 402, and a connecting duct 6 is connected to the air delivery duct 5. The connecting duct 6 is externally connected to a fan. Through the technical solution, the wind can be transported to the inner cavity of the inner shell 402 through the connecting duct 6 and the air delivery duct 5 through the operation of the fan, so that the gas is dispersed and ejected through the air outlet holes 403, and the dispersed and ejected gas is evenly output through a plurality of air outlet pipes 404. The heating resistor wires C407 inside the air outlet pipes 404 at both ends are relatively short in length, so that the contact time between the gas and the heating resistor wire C407 is relatively short, so that the temperature of the gas after heating is relatively low. The heating resistor wires B406 inside the air outlet pipes 404 on both sides are of medium length, and the gas and the heating resistor wires B406 are relatively close in contact. The contact time 406 is medium, so that the temperature of the gas is moderate after heating. The heating resistance wire A405 located in the inner cavity of the air outlet pipe 404 in the middle is the longest, so the gas heating time is the longest, so that the gas temperature is relatively high. It can be seen from the above technical scheme that during the traction movement of the coating 3, it first contacts with the lower temperature gas at one end, which plays a role of preheating the coating 3, and then gradually moves to a position with medium temperature, and is further heated and dried by hot air, and finally moves to the middle position, where the hot air temperature is the highest, so that the coating 3 can be quickly dried. Through this technical scheme, a gradual heating method of preheating, heating and high-temperature heating can be achieved, thereby effectively making the relatively thick coating 3 fully heated and dried inside and outside.

[0050] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Electric drying machine, characterized by: The electric drying machine comprises: A drying chamber (1), wherein a feed port (101) is fixedly provided at one side of the drying chamber (1), and a discharge port (102) is fixedly provided at the other side of the drying chamber (1); A guide unit (2), the guide unit (2) being arranged in the inner cavity of the drying chamber (1), and the guide unit (2) being used to guide the coating (3); A heating unit (4), wherein the heating unit (4) is fixedly arranged in the inner cavity of the drying chamber (1), and the heating unit (4) can gradually heat the coating (3) in stages, and the heating unit (4) is hot air heating.

2. The electric drying machine according to claim 1, characterized in that: Limiting guide rollers (104) are provided on both sides of the inner cavity of the drying chamber (1), and the limiting guide rollers (104) are rotatably connected to the inner cavity wall of the drying chamber (1).

3. The electric drying machine according to claim 1, characterized in that: The guide unit (2) comprises an upper guide roller (201) and a lower guide roller (202); the upper guide roller (201) and the lower guide roller (202) are respectively arranged at the upper and lower sides of the inner cavity of the drying chamber (1) and are rotatably connected to the drying chamber (1).

4. The electric drying machine according to claim 3, characterized in that: The upper guide rollers (201) and the lower guide rollers (202) are distributed in a staggered manner in the inner cavity of the drying chamber (1).

5. The electric drying machine according to claim 3, characterized in that: The arc-shaped surfaces of the upper guide roller (201) and the lower guide roller (202) are both wrapped and fixedly provided with a cotton cloth sleeve (203), and the interior of the cotton cloth sleeve (203) is soaked with paint.

6. The electric drying machine according to claim 1, characterized in that: The heating unit (4) comprises a fixed shell (401), an inner shell (402), an air outlet (403), an air outlet pipe (404), a heating resistance wire A (405), a heating resistance wire B (406) and a heating resistance wire C (407). Two heating units (4) are provided, and the two heating units (4) are respectively fixed on the upper and lower walls of the inner cavity of the drying chamber (1).

7. The electric drying machine according to claim 6, characterized in that: The fixed shell (401) is fixedly connected to the inner cavity wall of the drying chamber (1), an inner shell (402) is fixedly arranged in the inner cavity of the fixed shell (401), and a plurality of air outlet holes (403) are arranged on the inner cavity upper wall of the inner shell (402).

8. The electric drying machine according to claim 7, characterized in that: A plurality of air outlet pipes (404) are fixedly arranged on the upper wall of the inner cavity of the fixed shell (401), and the plurality of air outlet pipes (404) are arranged at equal distances.

9. The electric drying machine according to claim 6, characterized in that: A heating resistance wire C (407) is fixedly arranged in the inner cavity of the air outlet pipe (404) at both ends, a heating resistance wire B (406) is fixedly arranged in the inner cavity of the air outlet pipe (404) at both sides, and a heating resistance wire A (405) is fixedly connected in the inner cavity of the air outlet pipe (404) at the middle part. The heating resistance wire A (405), the heating resistance wire B (406) and the heating resistance wire C (407) are all spiral-shaped, and the lengths of the heating resistance wire C (407), the heating resistance wire B (406) and the heating resistance wire A (405) increase in sequence.

10. The electric drying machine according to claim 6, characterized in that: An air delivery duct (5) is connected to the inner cavity of the inner shell (402), a connecting duct (6) is connected to the air delivery duct (5), and the connecting duct (6) is externally connected to a fan.

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