Electromagnetic hot air circulation carbonization kiln for carbonized wood and use method of electromagnetic hot air circulation carbonization kiln

Abstract

The invention relates to an electromagnetic hot air circulation carbonization kiln for carbonized wood and a using method of the electromagnetic hot air circulation carbonization kiln, and belongs to the technical field of wood heat treatment devices.The electromagnetic hot air circulation carbonization kiln comprises a carbonization kiln body, an air inlet channel, an air outlet channel, a heating structure and a temperature controller; the air outlet channel is used for discharging heated air out of the carbonization kiln main body, the heating structure is located in the carbonization kiln main body and used for uniformly heating carbonized wood, and the heating structure heats the carbonized wood through electromagnetic heat; the temperature controller is connected with the heating structure and used for controlling the heating structure, so that the heating structure can generate electromagnetic heat to heat the carbonized wood; the carbonization kiln has the beneficial effects that the temperature controller controls carbonization heat in the carbonization kiln body, electromagnetic heat generated by the heating structure is controlled, and the energy utilization rate in the carbonization kiln is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of wood heat treatment devices, and in particular relates to an electromagnetic hot air circulation carbonization kiln for carbonizing wood and a use method thereof. Background Art

[0002] As people's demand for environmentally friendly and high-quality wood products continues to increase, carbonized wood, as a specially treated wood, has been widely used in construction, furniture, decoration and other fields due to its advantages of anti-corrosion, insect resistance and good stability. At present, there are some problems with existing carbonization kilns, such as: uneven heating resulting in unstable wood carbonization quality, low energy utilization efficiency inside the carbonization kiln resulting in increased production costs, and lack of effective temperature and humidity control methods affecting the carbonization effect. Traditional heating methods, such as gas heating and resistance wire heating, have problems with slow heating speed and uneven temperature distribution, which makes the wood prone to local overheating or insufficient carbonization during the carbonization process. These heating methods make the energy utilization rate inside the carbonization kiln low, resulting in energy waste.

[0003] During the heat treatment of wood, a large amount of heat will be lost to the surrounding environment through the kiln body of traditional carbonization kilns during the heating process. Especially some old equipment has poor thermal insulation performance, resulting in serious energy waste. The energy utilization rate inside traditional carbonization kilns is less than 40%, which not only increases production costs, but also does not conform to the current development of energy conservation and emission reduction. Summary of the Invention

[0004] The present invention provides an electromagnetic hot air circulation carbonization kiln for carbonizing wood, which is used to solve the technical problem of low energy utilization rate inside the carbonization kiln in the prior art. The heating structure is controlled by a temperature controller, so that the electromagnetic heat generated by the heating structure is controlled, thereby improving the energy utilization rate inside the carbonization kiln.

[0005] In order to achieve the above object, the present invention is implemented by the following technical solutions:

[0006] An electromagnetic hot air circulation carbonization kiln for carbonizing wood, comprising:

[0007] Carbonization kiln body;

[0008] The air inlet channel is used to introduce air at room temperature into the interior of the carbonization kiln body. The air inlet channel is located on the side wall of the carbonization kiln body.

[0009] An air outlet channel discharges the heated air to the outside of the carbonization kiln body, and the air outlet channel is located on the side wall of the carbonization kiln body;

[0010] The heating structure is located inside the carbonization kiln body and is used to evenly heat the carbonized wood. The heating structure heats the carbonized wood through electromagnetic heat.

[0011] a temperature controller connected to the heating structure and used to control the heating structure so that the heating structure can generate electromagnetic heat to heat the carbonized wood;

[0012] After air at room temperature is introduced into the carbonization kiln body through the air inlet channel, the temperature controller enables the heating structure to generate electromagnetic heat, the heating structure evenly heats the carbonized wood, and the air outlet channel discharges the heated air to the outside of the carbonization kiln body.

[0013] Optionally, the air inlet channel is lower than the air outlet channel, so that the heated air inside the carbonization kiln body can be discharged from the air outlet channel.

[0014] Optionally, the temperature controller is fixedly arranged on the side wall of the carbonization kiln body, and the temperature controller controls the heating structure according to the temperature inside the carbonization kiln body.

[0015] Optionally, the temperature controller is connected to the heating structure through an electric wire to control the heating structure.

[0016] Optionally, the heating structure is arranged longitudinally, and the heating structure has a plurality of columns, each column being used for electromagnetic heating of the carbonized wood.

[0017] Optionally, each column is provided with a longitudinally penetrating heating hole, each heating hole is filled with carbonized wood, and an alternating magnetic field can be generated in the column to heat the carbonized wood in each column.

[0018] Optionally, each column is provided with a longitudinally penetrating opening, each opening is provided with a conductive rod, and each conductive rod is connected to the temperature controller via an electric wire.

[0019] Optionally, the columns are arranged in a circular array on the heating structure, and each column is connected to a connecting rod at the center of the column through a connecting plate, and the connecting plates are arranged in a linear array in the longitudinal direction of the heating structure.

[0020] A method for using an electromagnetic hot air circulation carbonization kiln for carbonizing wood comprises the following steps:

[0021] The temperature controller simultaneously generates alternating current in the conductive rods in each opening through the first cable and the wire. The alternating current generated by each conductive rod generates an alternating magnetic field in each column. The alternating magnetic field generated by each column causes each column to heat the carbonized wood in each heating hole.

[0022] The temperature controller detects the temperature inside the carbonization kiln body according to the temperature sensor sheet inside the carbonization kiln body. The temperature controller determines the frequency and amplitude of the alternating current generated by the conductive rod according to the different temperatures detected, thereby realizing the temperature controller's control of the carbonization heat inside the carbonization kiln body.

[0023] Optionally, if the temperature inside the carbonization kiln main body is high, the temperature controller generates an alternating current with a small frequency and a small amplitude for the conductive rod; otherwise, if the temperature inside the carbonization kiln main body is low, the temperature controller generates an alternating current with a large frequency and a large amplitude for the conductive rod, thereby realizing the temperature controller controlling the carbonization heat inside the carbonization kiln main body.

[0024] Beneficial effects of the present invention:

[0025] The temperature controller of the present invention is connected to the wires via a first cable, and each wire is connected to a conductive rod in each opening. The conductive rods are separated from the columns by an insulating layer. The greater the frequency and amplitude of the alternating current generated by the temperature controller for the conductive rods, the greater the frequency and amplitude of the alternating magnetic field generated by the columns. The greater the frequency and amplitude of the alternating magnetic field, the more heat the columns generate, and the carbonized wood inside the heating holes can be heated and carbonized quickly. Conversely, the smaller the frequency and amplitude of the alternating current generated by the temperature controller for the conductive rods, the smaller the frequency and amplitude of the alternating magnetic field generated by the columns. The smaller the frequency and amplitude of the alternating magnetic field, the less heat the columns generate, and the slower the carbonized wood inside the heating holes is heated and carbonized. The temperature controller detects the temperature inside the carbonization kiln body based on the temperature sensor inside the carbonization kiln body. The temperature controller determines the frequency and amplitude of the alternating current generated for the conductive rods based on the different temperatures detected. When the temperature inside the carbonization kiln is high, the temperature controller generates a low-frequency and low-amplitude alternating current for the conductive rods. Otherwise, when the temperature inside the carbonization kiln is low, the temperature controller generates a high-frequency and high-amplitude alternating current for the conductive rods. The temperature controller controls the carbonization heat inside the carbonization kiln, thereby controlling the electromagnetic heat generated by the heating structure and improving the energy utilization rate inside the carbonization kiln. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0029] Figure 3 For the present invention Figure 2 A local enlarged structural diagram of point A;

[0030] Figure 4It is a schematic diagram of the three-dimensional structure of the heating structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the heating structure of the present invention when viewed from above;

[0032] Figure 6 The figure is a flow chart of the use of the present invention.

[0033] Icons: 1-carbonization kiln body, 2-air inlet channel, 3-foot column, 4-air outlet channel, 5-sealing cover, 6-thermometer, 7-heating structure, 71-connecting rod, 72-connecting plate, 73-column, 74-heating hole, 75-opening, 8-temperature controller, 81-fixing ring, 82-temperature sensor, 83-first cable, 84-second cable, 9-electric wire. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0035] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0036] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installation," "connection," and "connection" should be understood in a broad sense. For example, they can refer to welding, bolting, or riveting; fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0038] Example 1

[0039] like Figure 1-Figure 2As shown, this embodiment provides an electromagnetic hot air circulation carbonization kiln for carbonizing wood, comprising: a carbonizing kiln main body 1, an air inlet channel 2, an air outlet channel 4, a heating structure 7 and a temperature controller 8; the carbonizing kiln main body 1 is supported by a foot column 3, the interior of the carbonizing kiln main body 1 is sealed by a sealing cover 5, the air inlet channel 2 is used to introduce air at room temperature into the interior of the carbonizing kiln main body 1, and the air inlet channel 2 is located on the side wall of the carbonizing kiln main body 1; the air outlet channel 4 is used to discharge heated air to the outside of the carbonizing kiln main body 1, and the air outlet channel 4 is located on the side wall of the carbonizing kiln main body 1; the heating structure 7 is located inside the carbonizing kiln main body 1, and is used to uniformly heat the carbonized wood, and the heating structure 7 heats the carbonized wood by electromagnetic heat; the temperature controller 8 is connected to the heating structure 7, and is used to control the heating structure 7 so that the heating structure 7 can generate electromagnetic heat to heat the carbonized wood.

[0040] After air at room temperature (generally 20°C-25°C) is introduced into the carbonization kiln body 1 through the air inlet channel 2, the temperature controller 8 enables the heating structure 7 to generate electromagnetic heat, and the heating structure 7 evenly heats the carbonized wood. The air outlet channel 4 discharges the heated air to the outside of the carbonization kiln body 1.

[0041] In this embodiment, the air inlet channel 2 and the air outlet channel 4 are opened or closed at the same time. After the air inlet channel 2 introduces air at room temperature into the carbonization kiln body 1, the air outlet channel 4 discharges heated air.

[0042] Example 2

[0043] Based on Example 1, Figure 2 As shown, the air inlet channel 2 is lower than the air outlet channel 4, so that the heated air inside the carbonization kiln body 1 can be discharged from the air outlet channel 4. Because the density of high-temperature air is lower than that of low-temperature air, the position of high-temperature air inside the carbonization kiln body 1 is higher than that of low-temperature air.

[0044] The temperature controller 8 is fixedly arranged on the side wall of the carbonization kiln body 1 . The temperature controller 8 controls the heating structure 7 according to the temperature inside the carbonization kiln body 1 . The temperature controller 8 is connected to the heating structure 7 via an electric wire 9 to control the heating structure 7 .

[0045] like Figure 3 As shown, the temperature controller 8 is a very conventional instrument, and its internal operation is executed by a set program. The temperature controller 8 has a fixing ring 81, which can be interference-fitted on the side wall of the carbonization kiln body 1. The temperature controller 8 also has a temperature sensing piece 82, a first cable 83, and a second cable 84. The temperature sensing piece 82 is connected to the interior of the temperature controller 8 via the second cable 84, and the wire 9 is connected to the interior of the temperature controller 8 via the first cable 83. The temperature controller 8 is connected to the wires 9 via the first cable 83, and each wire 9 is connected to a conductive rod in each opening 75.

[0046] like Figure 4 As shown, the heating structure 7 is arranged longitudinally and has a plurality of columns 73. The columns 73 are made of a heat-conducting material (e.g., aluminum nickel cobalt). Each column 73 is used for electromagnetic heating of the carbonized wood. Each column 73 has a longitudinally extending heating hole 74 formed therein. Each heating hole 74 is filled with carbonized wood. The columns 73 can generate an alternating magnetic field to heat the carbonized wood in each column 73. Since the cross-sectional area of ​​each heating hole 74 is rectangular, the carbonized wood in each heating hole 74 is evenly heated.

[0047] like Figure 5 As shown, each column 73 is provided with a longitudinal opening 75, and each opening 75 is provided with a conductive rod (not shown in the figure). The conductive rod is separated from the column 73 by an insulating layer to prevent conduction between the conductive rod and the column 73. Each conductive rod is connected to the temperature controller 8 through an electric wire 9.

[0048] The columns 73 are arranged in a circular array on the heating structure 7. Each column 73 is connected to the connecting rod 71 at the center position of the column 73 through a connecting plate 72. The connecting rod 71 makes the axis of the entire heating structure 7 on the connecting rod 71. The connecting plates 72 are arranged in a linear array in the longitudinal direction of the heating structure 7, saving the material cost of the connecting plates 72. The columns 73 are fixedly connected to the connecting plates 72, and the connecting plates 72 are fixedly connected to the connecting rod 71.

[0049] Example 3

[0050] Based on Example 1-Example 2, the working method of the present invention is as follows:

[0051] Air is taken into the carbonization kiln body 1 through the air inlet channel 2 and exhausted through the air outlet channel 4. The flow rates of the air inlet and exhaust are controlled according to the situation.

[0052] A thermometer 6 is installed on the side wall of the carbonization kiln main body 1 . The thermometer 6 is used to display the temperature inside the carbonization kiln main body 1 , so that the temperature inside the carbonization kiln main body 1 can be easily observed from outside the carbonization kiln main body 1 .

[0053] The temperature controller 8 simultaneously generates alternating current in the conductive rods in each opening 75 through the first cable 83 and the electric wire 9. The alternating current generated by each conductive rod causes each column 73 to generate an alternating magnetic field. The alternating magnetic field generated by each column 73 causes each column 73 to heat the carbonized wood inside each heating hole 74.

[0054] The greater the frequency and amplitude of the alternating current generated by the temperature controller 8 to the conductive rod, the greater the frequency and amplitude of the alternating magnetic field generated by the column 73. The greater the frequency and amplitude of the alternating magnetic field, the more heat is generated by the column 73, and the carbonized wood inside the heating hole 74 can be heated and carbonized quickly. Conversely, the smaller the frequency and amplitude of the alternating current generated by the temperature controller 8 to the conductive rod, the smaller the frequency and amplitude of the alternating magnetic field generated by the column 73. The smaller the frequency and amplitude of the alternating magnetic field, the less heat is generated by the column 73, and the carbonized wood inside the heating hole 74 is heated and carbonized more slowly.

[0055] The temperature controller 8 detects the temperature inside the carbonization kiln main body 1 based on the temperature sensing piece 82 inside the carbonization kiln main body 1. The temperature controller 8 determines the frequency and amplitude of the alternating current generated by the conductive rod according to the detected different temperatures.

[0056] When the temperature inside the carbonization kiln main body 1 is high, the AC power generated by the temperature controller 8 to the conductive rods has a low frequency and a low amplitude. Otherwise, when the temperature inside the carbonization kiln main body 1 is low, the AC power generated by the temperature controller 8 to the conductive rods has a high frequency and a high amplitude. This enables the temperature controller 8 to control the carbonization heat inside the carbonization kiln main body 1.

[0057] Example 4

[0058] like Figure 6 As shown, this embodiment provides a method for using an electromagnetic hot air circulation carbonization kiln for carbonizing wood, comprising the following steps:

[0059] The temperature controller 8 simultaneously generates alternating current in the conductive rods in each opening 75 through the first cable 83 and the wire 9. The alternating current generated by each conductive rod generates an alternating magnetic field in each column 73. The alternating magnetic field generated by each column 73 causes each column 73 to heat the carbonized wood in each heating hole 74.

[0060] The temperature controller 8 detects the temperature inside the carbonization kiln main body 1 based on the temperature sensing piece 82 inside the carbonization kiln main body 1. The temperature controller 8 determines the frequency and amplitude of the alternating current generated by the conductive rod according to the different temperatures detected, thereby realizing the temperature controller 8 controlling the carbonization heat inside the carbonization kiln main body 1.

[0061] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An electromagnetic hot air circulation carbonization kiln for carbonizing wood, characterized in that: include: Carbonization kiln body (1); An air inlet channel (2) for introducing air at room temperature into the interior of the carbonization kiln body (1), wherein the air inlet channel (2) is located on a side wall of the carbonization kiln body (1); An air outlet channel (4) for discharging heated air to the outside of the carbonization kiln body (1), wherein the air outlet channel (4) is located on a side wall of the carbonization kiln body (1); A heating structure (7) is located inside the carbonization kiln body (1) and is used to uniformly heat the carbonized wood. The heating structure (7) heats the carbonized wood through electromagnetic heat. a temperature controller (8) connected to the heating structure (7) and used to control the heating structure (7) so that the heating structure (7) can generate electromagnetic heat to heat the carbonized wood; After the air at room temperature is introduced into the interior of the carbonization kiln main body (1) through the air inlet channel (2), the temperature controller (8) causes the heating structure (7) to generate electromagnetic heat, the heating structure (7) uniformly heats the carbonized wood, and the air outlet channel (4) discharges the heated air to the outside of the carbonization kiln main body (1).

2. The electromagnetic hot air circulation carbonization kiln for carbonizing wood according to claim 1, characterized in that: The air inlet channel (2) is lower than the air outlet channel (4), so that the heated air inside the carbonization kiln body (1) can be discharged from the air outlet channel (4).

3. The electromagnetic hot air circulation carbonization kiln for carbonizing wood according to claim 1, characterized in that: The temperature controller (8) is fixedly arranged on the side wall of the carbonization kiln body (1), and the temperature controller (8) controls the heating structure (7) according to the temperature inside the carbonization kiln body (1).

4. The electromagnetic hot air circulation carbonization kiln for carbonizing wood according to claim 3, characterized in that: The temperature controller (8) is connected to the heating structure (7) via an electric wire (9) to control the heating structure (7).

5. The electromagnetic hot air circulation carbonization kiln for carbonizing wood according to claim 1, characterized in that: The heating structure (7) is arranged longitudinally and has a plurality of columns (73), each of which is used for electromagnetically heating the carbonized wood.

6. The electromagnetic hot air circulation carbonization kiln for carbonizing wood according to claim 5, characterized in that: Each of the columns (73) is provided with a longitudinally penetrating heating hole (74), each of the heating holes (74) is filled with carbonized wood, and an alternating magnetic field can be generated in the columns (73) to heat the carbonized wood in each of the columns (73).

7. The electromagnetic hot air circulation carbonization kiln for carbonizing wood according to claim 5, characterized in that: Each of the upright posts (73) is provided with a longitudinally penetrating opening (75), each of the openings (75) is provided with a conductive rod, and each of the conductive rods is connected to the temperature controller (8) via an electric wire (9).

8. The electromagnetic hot air circulation carbonization kiln for carbonizing wood according to claim 5, characterized in that: The columns (73) are arranged in a circular array on the heating structure (7), and each column (73) is connected to a connecting rod (71) at the center position of the column (73) through a connecting plate (72). The connecting plate (72) is arranged in a linear array in the longitudinal direction of the heating structure (7).

9. A method for using an electromagnetic hot air circulation carbonization kiln for carbonizing wood, which is performed by using the electromagnetic hot air circulation carbonization kiln for carbonizing wood according to any one of claims 1 to 8, characterized in that: The steps include: The temperature controller (8) simultaneously causes the conductive rods in each opening (75) to generate alternating current through the first cable (83) and the electric wire (9). The alternating current generated by each conductive rod causes each column (73) to generate an alternating magnetic field. The alternating magnetic field generated by each column (73) causes each column (73) to heat the carbonized wood inside each heating hole (74). The temperature controller (8) detects the temperature inside the carbonization kiln main body (1) according to the temperature sensing piece (82) inside the carbonization kiln main body (1). The temperature controller (8) determines the frequency and amplitude of the alternating current generated by the conductive rod according to the different temperatures detected, thereby realizing the temperature controller (8) controlling the carbonization heat inside the carbonization kiln main body (1).

10. The method for using the electromagnetic hot air circulation carbonization kiln for carbonizing wood according to claim 9, characterized in that: When the temperature inside the carbonization kiln main body (1) is high, the alternating current generated by the temperature controller (8) for the conductive rod has a low frequency and a low amplitude; otherwise, when the temperature inside the carbonization kiln main body (1) is low, the alternating current generated by the temperature controller (8) for the conductive rod has a high frequency and a high amplitude, thereby realizing the temperature controller (8) controlling the carbonization heat inside the carbonization kiln main body (1).

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