Drying machine heating assembly and drying machine

Abstract

The utility model relates to the technical field of electric heaters, in particular to a dryer heating assembly and a dryer. Comprising a connecting disc, a retaining rod and a ceramic heating element, the connecting disc is provided with an air passing opening communicating with the two sides of the disc face of the connecting disc, and the connecting disc is used for being connected with a dryer. The retaining rod is connected with the connecting disc; the plurality of ceramic heating elements are detachably connected with the retaining rod respectively and are arranged at intervals along the length direction of the retaining rod, each ceramic heating element is provided with a ventilation channel and an electrified electrode, and the electrified electrodes of the plurality of ceramic heating elements are sequentially connected in series; and in the disc surface normal view angle of the connecting disc, the extending direction of the ventilation channel penetrates through the air passing opening. The heating power adjusting process of the ceramic heating element is simpler, and the use convenience is higher.

Description

Technical Field

[0001] The present application relates to the technical field of electric heaters, and in particular to a dryer heating component and a dryer. Background Art

[0002] A dryer is a mechanical device that uses heat to reduce the moisture content of materials. It is used to dry objects. The dryer heats the material, vaporizing moisture (generally water or other volatile liquid components) to produce a solid material with a specified moisture content. The purpose of drying is to prepare the material for use or further processing.

[0003] The heating component in the dryer is mainly formed by wrapping the heating wire in a metal shell. This heating component will generate electromagnetic waves, waste electricity, and is prone to local overheating and causing fire. In response to this, the Chinese invention patent with publication number CN104048497A provides a heating device for a hopper dryer and a hopper dryer, which improves heating efficiency and achieves energy saving by bonding ceramic heating elements to a conductive heat sink. However, when the heating power needs to be adjusted, whether the ceramic heating element is removed or installed, since the adjacent conductive heat sinks and the ceramic heating element are fixed with conductive glue, the distance between the adjacent conductive heat sinks is extremely small, and it is extremely inconvenient to remove and install the ceramic heating element. In particular, when the ceramic heating element is removed, it is difficult to ensure that the conductive glue on the conductive heat sink is cleaned, that is, it is difficult to adjust the heating power of the heating component. Utility Model Content

[0004] The present application provides a dryer heating component and a dryer, which modularizes the ceramic heating body in the heating component and makes each ceramic heating element detachably connected, thereby facilitating the disassembly and assembly of the ceramic heating elements and solving the problem of difficulty in adjusting the heating power in existing heating components.

[0005] This application is implemented through the following technical solutions:

[0006] In a first aspect, the present application provides a drying machine heating component, comprising:

[0007] A connecting plate, the connecting plate having air vents communicating with both sides of the plate surface, the connecting plate being used to connect to a dryer;

[0008] a retaining rod connected to the connecting plate;

[0009] Ceramic heating elements, each of which is detachably connected to the holding rod and spaced apart along the length of the holding rod, each of which has a ventilation channel and a powered electrode, wherein the powered electrodes of the plurality of ceramic heating elements are sequentially connected in series;

[0010] Wherein, in the normal viewing angle of the disk surface of the connecting disk, the extension direction of the ventilation channel passes through the air outlet.

[0011] The dryer heating assembly provided in the present application has a main heating body composed of multiple ceramic heating elements, and the multiple ceramic heating elements are detachably connected to the retaining rods. When power adjustment is required, it is only necessary to release or form the connection between the ceramic heating element and the retaining rod, and at the same time remove or connect the powered electrodes on the ceramic heating element in series. Compared with the existing heating assembly, the power adjustment process is more convenient, and two adjacent ceramic heating elements are connected in series through the powered electrodes, so there is no process of scraping off the conductive glue, which is more convenient.

[0012] In some optional embodiments, the distance between the powered electrodes on two adjacent ceramic heating elements is smaller than the length of the connecting line between the two powered electrodes.

[0013] In some optional embodiments, the connecting line is in the shape of an arc.

[0014] In some optional embodiments, the connecting wire is plugged into the powered electrode.

[0015] In some optional embodiments, a sleeve housing is provided on the outer cover of the connecting wire, and the sleeve housing is respectively plugged into two adjacent energized electrodes;

[0016] The ceramic heating element is provided with a socket ear seat, and the ceramic heating element is sleeved on the retaining rod through the socket ear seat, wherein the retaining rod is constructed with a thread to lock the socket ear seat through a nut.

[0017] In some optional embodiments, the number of the retaining rods is configured to be multiple, and in the normal viewing angle of the disk surface of the connecting disk, the multiple retaining rods are evenly distributed around the circumference.

[0018] In some optional embodiments, the connection disk has mounting circular holes extending through both sides of the disk surface, a plurality of connecting ears evenly distributed around the circumference are provided on the hole wall of the mounting circular hole, a reinforcing connecting block is provided at the center of the mounting circular hole, the connecting ears are respectively connected to the reinforcing connecting block via radial connecting rods, and two adjacent radial connecting rods and the hole wall of the mounting circular hole enclose an air outlet;

[0019] Wherein, the retaining rod is connected to the connecting ear seat.

[0020] In some optional embodiments, the retaining rod is detachably connected to the connecting ear seat.

[0021] In a second aspect, the present application provides a dryer, comprising:

[0022] Barrel;

[0023] A cone bucket, the cone bucket and the barrel;

[0024] A heating pipe, the heating pipe being connected to the cone bucket, and any one of the dryer heating components described in the first aspect being installed in the heating pipe;

[0025] A fan is connected to the end of the heating pipe away from the cone bucket.

[0026] In some optional embodiments, the outer wall of the heating pipe is provided with thermal insulation cotton.

[0027] Compared with the prior art, this application has the following advantages and beneficial effects:

[0028] 1. The dryer heating assembly provided in the present application has a main heating body composed of multiple ceramic heating elements, and the multiple ceramic heating elements are detachably connected to the retaining rods. When power adjustment is required, it is only necessary to release or form the connection between the ceramic heating element and the retaining rod, and at the same time remove or connect the powered electrodes on the ceramic heating element in series. Compared with the existing heating assembly, the power adjustment process is more convenient, and two adjacent ceramic heating elements are connected in series through the powered electrodes, so there is no process of scraping the conductive glue, which is more convenient.

[0029] 2. The heating component of the dryer provided in this application has a thermal efficiency of over 90%, which is 1.5 times that of a conventional PTC heater and 2 times that of a traditional electric heating wire heater. It can save 30% of energy and electricity expenses, and has a low cost of use.

[0030] 3. The dryer provided in this application uses the dryer heating component provided in this application as a heat source, and the heating power is easy to adjust, and is suitable for situations with various power requirements.

[0031] 4. The dryer provided in this application adopts the dryer heating component provided in this application as the heat source. The ceramic heating element does not emit red light or burn when working, and can emit far-infrared rays, i.e. radiant heat. The emissivity is as high as 91%, and the temperature can rise to 500°C within 30 seconds. It has the advantages of energy saving, long life, and environmental protection. At the same time, the ceramic heating element does not burst when exposed to water, has strong acid and alkali resistance, and is suitable for a variety of working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the embodiments of the present application, constitute a part of the present application, and do not constitute a limitation of the embodiments of the present application. In the drawings:

[0033] Figure 1 A schematic diagram of the structure of a heating component of a dryer provided in an embodiment of the present application;

[0034] Figure 2A schematic diagram of a top view of the structure of a first dryer heating component provided in an embodiment of the present application;

[0035] Figure 3 A schematic diagram of a top view of the second dryer heating component provided in an embodiment of the present application;

[0036] Figure 4 This is a schematic diagram of the structure of the ceramic heating element provided in an embodiment of the present application.

[0037] Markings and corresponding parts names in the accompanying drawings:

[0038] 1-connecting plate, 2-holding rod, 3-ceramic heating element, 4-air outlet, 5-ventilation channel, 6-powered electrode, 7-sleeve shell, 8-sleeve ear seat, 9-nut, 10-reinforced connecting block, 11-radial connecting rod, 12-connecting ear seat. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of this application more clear, the present application is further described in detail below in conjunction with examples and drawings. The schematic implementation methods of this application and their descriptions are only used to explain this application and are not intended to limit this application.

[0040] First, as Figures 1 and 2 As shown, an embodiment of the present application provides a dryer heating component, which includes a connecting disk 1, a retaining rod 2 and a ceramic heating element 3; the connecting disk 1 is usually circular in shape to facilitate connection in the dryer, and the connecting disk 1 has an air outlet 4 connecting the two sides of its disk surface; the retaining rod 2 is connected to the connecting disk 1; a plurality of ceramic heating elements 3 are respectively detachably connected to the retaining rod 2 and are arranged at intervals along the length direction of the retaining rod 2, the ceramic heating element 3 has a ventilation channel 5, and the ceramic heating element 3 also has a powered electrode 6, and the powered electrodes 6 of the plurality of ceramic heating elements 3 are connected in series in sequence; wherein, in the normal viewing angle of the disk surface of the connecting disk 1, the extension direction of the ventilation channel 5 passes through the air outlet 4.

[0041] During operation, the ceramic heating element 3 generates heat by conducting the energized electrode 6 of the ceramic heating element 3. The heat generated by the ceramic heating element 3 enters the ventilation channel 5, and the heat is carried away by the wind from the air outlet 4 into other parts of the dryer to achieve the purpose of drying the material.

[0042] The dryer heating assembly provided in the present application has a main heating body composed of multiple ceramic heating elements 3, and the multiple ceramic heating elements 3 are detachably connected to the retaining rod 2. When power adjustment is required, it is only necessary to release or form the connection between the ceramic heating element 3 and the retaining rod 2, and at the same time remove or connect the powered electrodes 6 on the ceramic heating element 3 in series. Compared with the existing heating assembly, the power adjustment process is more convenient, and two adjacent ceramic heating elements 3 are connected in series through the powered electrodes 6, so there is no process of scraping off the conductive glue, which is more convenient.

[0043] In the embodiment of the present application, the cross-sectional shape of the retaining rod 2 is not restricted and can be constructed into shapes such as square, triangle, trapezoid, star, etc. Since the retaining rod 2 is in a high-temperature environment in the embodiment of the present application, in order to reduce thermal stress concentration, the cross-sectional shape of the retaining rod 2 is constructed into a circle, that is, the retaining rod 2 is set as a round rod.

[0044] In the embodiment of the present application, the dryer heating assembly is usually installed in the heating tube, so the overall shape of the ceramic heating element 3 is set to be cylindrical. The ventilation channel 5 on the ceramic heating element 3 is a circular hole, and the axis of the ventilation channel 5 is parallel to the axis of the ceramic heating element 3.

[0045] In a high temperature environment, the connection structure between the ceramic heating element 3 and the retaining rod 2 may expand slightly, which may cause the distance between the powered electrodes 6 on the two ceramic heating elements 3 to change. Therefore, in some optional embodiments, the distance between the powered electrodes 6 on two adjacent ceramic heating elements 3 is less than the length of the connecting line between the two powered electrodes 6. In this way, in the case of high temperature expansion, the connecting line will not be stretched and pulled by the ceramic heating element 3.

[0046] In some optional embodiments, the connecting line is in an arcuate shape, which can reduce mechanical stress, better disperse tension, reduce direct pressure on the connection point, and reduce the risk of damage caused by frequent movement or vibration.

[0047] In some optional embodiments, the connecting wire is plugged into the powered electrode 6, thereby facilitating the removal or serial connection of the powered electrodes 6 of the two ceramic heating elements 3, thereby improving the convenience of the power adjustment process. In actual implementation, the powered electrode 6 can be configured as a heat-resistant plug-in terminal. In the axial direction of the ceramic heating element 3, both the upper and lower sides of the powered electrode 6 can be plugged in. For example, plug-in terminals are provided on both sides, and the two plug-in terminals are connected from the inside of the powered electrode 6.

[0048] In some optional embodiments, a socket shell 7 is provided on the outer sleeve of the connecting wire, and the socket shell 7 is respectively plugged into two adjacent powered electrodes 6; a socket ear seat 8 is provided on the ceramic heating element 3, and the ceramic heating element 3 is sleeved on the retaining rod 2 through the socket ear seat 8, wherein the retaining rod 2 is constructed with a thread to lock the socket ear seat 8 through a nut 9.

[0049] In the embodiment of the present application, the sleeve housing 7 serves as a positioning member for the ceramic heating elements 3, preventing adjacent ceramic heating elements 3 from contacting each other. Simultaneously, the sleeve housing 7 also protects the connecting wires, preventing accidental damage. In actual implementation, the sleeve housing 7 can be configured as a thermally insulated housing to reduce the effect of temperature on the electrical conductivity of the connecting wires. The powered electrode 6 is provided with a socket corresponding to the end of the sleeve housing 7 to facilitate assembly and disassembly of the sleeve housing 7.

[0050] In some optional embodiments, the number of retaining rods 2 is configured to be multiple, and in the normal viewing angle of the disk surface of the connecting disk 1, the multiple retaining rods 2 are evenly distributed around the circumference.

[0051] In the embodiment of the present application, the provision of multiple retaining rods 2 can ensure the installation stability of the ceramic heating element near and far, and the uniform distribution of multiple retaining rods 2 around the circumference is conducive to balancing the thermal stress of the retaining rods 2 in a high temperature environment.

[0052] In some optional embodiments, see Figures 3 and 4 , Figure 3 The dotted line in the figure is a dividing line and does not represent a physical structure. The connecting disk 1 has mounting circular holes that pass through both sides of the disk surface. A plurality of connecting ear seats 12 that are evenly distributed around the circumference are provided on the hole wall of the mounting circular hole. A reinforcing connecting block 10 is provided at the center of the mounting circular hole. The connecting ear seats 12 are connected to the reinforcing connecting block 10 through radial connecting rods 11 respectively. Two adjacent radial connecting rods 11 and the hole wall of the mounting circular hole enclose an air outlet 4; wherein, the retaining rod 2 is connected to the connecting ear seat 12.

[0053] In the embodiment of the present application, each connecting ear seat 12 is connected as a whole through the reinforced connecting block 10 and the radial connecting rod 11. The bearing capacity of each connecting ear seat 12 is improved to a certain extent. Under the thermal expansion environment, the connection structure between the connecting ear seat 12 and the connecting disk 1 is not easily destroyed.

[0054] In some optional embodiments, the retaining rod 2 is detachably connected to the connecting ear seat 12. For some occasions where the power is too large, a longer retaining rod 2 can be replaced to install more ceramic heating elements 3.

[0055] In a second aspect, an embodiment of the present application provides a dryer, which includes a barrel, a cone hopper, a heating pipe and a fan; the cone hopper is connected to the barrel; the heating pipe is connected to the cone hopper, and any one of the dryer heating components described in the first aspect is installed in the heating pipe; the fan is connected to the end of the heating pipe away from the cone hopper.

[0056] In some optional embodiments, the outer wall of the heating pipe is provided with heat-insulating cotton, which can reduce heat loss and ensure drying efficiency.

[0057] The above is an explanation of the implementation mode of the present application by specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation mode. On the contrary, the purpose of introducing the application in conjunction with the implementation mode is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide an in-depth understanding of the present application, the above description contains many specific details. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other unless there is a conflict.

[0058] It should be noted that in this specification, similar numbers and letters represent similar items in the above figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting this application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance. In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be a communication between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A heating component for a dryer, characterized in that: include: A connecting plate (1), the connecting plate (1) having air vents (4) communicating with both sides of the plate surface, the connecting plate (1) being used to connect to a dryer; A retaining rod (2), the retaining rod (2) being connected to the connecting plate (1); A ceramic heating element (3), wherein a plurality of the ceramic heating elements (3) are detachably connected to the holding rod (2) and are arranged at intervals along the length direction of the holding rod (2), the ceramic heating element (3) having a ventilation channel (5), and the ceramic heating element (3) further having a powered electrode (6), and the powered electrodes (6) of the plurality of the ceramic heating elements (3) are connected in series in sequence; Wherein, in the normal viewing angle of the disk surface of the connecting disk (1), the extension direction of the ventilation channel (5) passes through the air outlet (4).

2. The heating component of the dryer according to claim 1, characterized in that: The distance between the powered electrodes (6) on two adjacent ceramic heating elements (3) is smaller than the length of the connecting line between the two powered electrodes (6).

3. The heating component of the dryer according to claim 2, characterized in that: The connecting line is in an arc shape.

4. The heating component of the dryer according to claim 2, characterized in that: The connecting wire is plugged into the energized electrode (6).

5. The heating component of the dryer according to claim 2, characterized in that: The outer shell of the connecting wire is provided with a sleeve shell (7), and the sleeve shell (7) is respectively plugged into two adjacent energized electrodes (6); The ceramic heating element (3) is provided with a sleeve ear seat (8), and the ceramic heating element (3) is sleeved on the retaining rod (2) through the sleeve ear seat (8), wherein the retaining rod (2) is constructed with a thread to lock the sleeve ear seat (8) through a nut (9).

6. The heating component of the dryer according to claim 1, characterized in that: The number of the retaining rods (2) is configured to be multiple, and in the normal viewing angle of the disk surface of the connecting disk (1), the multiple retaining rods (2) are evenly distributed around the circumference.

7. The heating component of the dryer according to claim 6, characterized in that: The connecting disk (1) has mounting circular holes penetrating through both sides of the disk surface, a plurality of connecting ear seats (12) uniformly distributed around the circumference are provided on the hole wall of the mounting circular hole, a reinforcing connecting block (10) is provided at the center of the mounting circular hole, the connecting ear seats (12) are connected to the reinforcing connecting block (10) via radial connecting rods (11), and two adjacent radial connecting rods (11) and the hole wall of the mounting circular hole enclose an air outlet (4); Wherein, the retaining rod (2) is connected to the connecting ear seat (12).

8. The heating component of the dryer according to claim 7, characterized in that: The retaining rod (2) is detachably connected to the connecting ear seat (12).

9. A dryer, characterized in that: include: Barrel; A cone bucket, the cone bucket and the barrel; a heating pipe connected to the cone bucket, wherein the heating pipe is provided with a heating assembly for the dryer according to any one of claims 1 to 8; A fan is connected to the end of the heating pipe away from the cone bucket.

10. The dryer according to claim 9, characterized in that The outer wall of the heating pipe is provided with thermal insulation cotton.

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