CN209910291U

CN209910291U - Wood drying device

Info

Publication number: CN209910291U
Application number: CN201920439635.XU
Authority: CN
Inventors: 王宗敬
Original assignee: Guizhou Yuxiang Industrial Co Ltd
Current assignee: Guizhou Yuxiang Industrial Co Ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-01-07
Anticipated expiration: 2029-04-02

Abstract

The utility model discloses a wood drying device, which comprises a boiler and a drying kiln, wherein a kiln door is arranged on one side of the drying kiln, a support plate is arranged in the center of the top of the drying kiln, and the support plate is not in contact with both sides of the drying kiln; the supporting plate is provided with a supporting frame; a plurality of electric heating devices are uniformly distributed on one side of the supporting frame; the electric heating device is connected with the electric cabinet through a wire; the other side of the support frame is provided with a plurality of heat exchangers, wherein the heat exchangers are connected in series through pipelines; the boiler is connected with the air inlet end of the heat exchanger through an air transmission pipeline, and an electromagnetic valve is arranged on the air transmission pipeline; the air outlet end of the heat exchanger is connected with the water collecting tank through an air outlet pipeline; the top of the drying kiln is provided with a plurality of fans. The utility model discloses simple structure, be convenient for select the stoving mode and practice thrift the cost.

Description

Wood drying device

Technical Field

The utility model relates to a wood working equipment, specifically speaking relate to a timber drying device.

Background

In the production and manufacturing process of the wood, drying is an important process, and the quality of the wood is directly determined by the quality of the drying effect. In order to ensure that the solid wood board has better performances of crack prevention and the like, the service life of the furniture is prolonged, and the product quality is improved. The log wood needs to be dried, and the traditional mode is natural airing dehydration, which is economic and convenient. However, the airing degree is not easy to control, and the problems of embrittlement, bending and the like of wood chips caused by excessive dehydration of wood often occur, so that the quality of a final product is seriously influenced; meanwhile, the clothes are naturally aired due to factors of weather; if the wood chips are in rainy days, the wood chips cannot be aired and dehydrated, and the whole production progress is influenced. Therefore, drying kilns are often used to dry wood.

At present, most of heating modes of a drying kiln adopt electric heating, only electric heating is adopted, a large amount of electric energy is consumed in the drying process, the cost is high, and great waste is caused; the drying is also carried out by adopting steam heating, the heating needs to be provided with a boiler, the boiler is used singly, the drying process is not easy to control, particularly the control of the drying time, in order to avoid the waste of the steam, the work in the last shift every day may also need to be carried out by workers to ensure the maximum use of the steam, and a large amount of water is also consumed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a timber drying device of simple structure, the selection stoving mode of being convenient for and saving cost.

In order to solve the technical problem, the utility model discloses a technical scheme does: a wood drying device comprises a boiler and a drying kiln, wherein a kiln door is arranged on one side of the drying kiln, a support plate is arranged in the center of the top of the drying kiln, and the support plate is not in contact with two sides of the drying kiln; the supporting plate is provided with a supporting frame; a plurality of electric heating devices are uniformly distributed on one side of the supporting frame; the electric heating device is connected with the electric cabinet through a wire; the other side of the support frame opposite to the support frame is provided with a plurality of heat exchangers, wherein the heat exchangers are connected in series through pipelines; the boiler is connected with the air inlet end of the heat exchanger through an air transmission pipeline, and an electromagnetic valve is arranged on the air transmission pipeline; the air outlet end of the heat exchanger is connected with the water collecting tank through an air outlet pipeline; and a plurality of fans are arranged at the top of the drying kiln.

Preferably, the water collecting tank is connected with the boiler through a return pipe, and a return pump is arranged on the return pipe.

Preferably, the fan is disposed at the midpoint of the top of the support plate.

Preferably, a plurality of electrically controlled air doors are arranged at the top of the drying kiln.

Preferably, a temperature probe and a humidity probe are arranged in the drying kiln, the output ends of the temperature probe and the humidity probe are electrically connected with a controller, and the output end of the controller is respectively electrically connected with the electric heating device, the electric control air door and the electromagnetic valve.

Preferably, a heat insulation layer is further arranged outside the drying kiln.

Preferably, the electric heating device comprises a frame and an electric heating pipe; the electric heating pipes are uniformly fixed on the frame.

Preferably, the gas transmission pipeline is externally sleeved with a heat insulation sleeve.

The utility model has the advantages that: 1. the utility model discloses a mode that sets up electrical heating and boiler heating carries out the drying to timber, can select to use electrical heating or boiler heating or mode that both used simultaneously to carry out the drying to timber as required when carrying out timber stoving, if the last batch of timber of the same day meets the stoving time intercept and is not convenient for adopt the boiler only need select the electrical drying, when meeting the power failure, can select the boiler to dry, make the stoving mode diversified, the operation flexibility of convenient to dry; 2. the utility model discloses a fan is towards drying kiln drum air, utilizes the mode that the steam of electric heater unit and/or boiler passes through the heat exchanger, makes steam distribute in drying kiln, utilizes steam to carry out the drying to timber, because the distribution of steam is comparatively even, makes the temperature distribution in drying kiln comparatively even, and the degree of consistency of timber stoving is good; 3. the fuel heated by the boiler is waste wood chips processed by wood or waste wood as fuel, so that the waste wood can be fully utilized, and partial electric energy is saved compared with single electric energy drying; the heat can release behind the heat exchanger steam, becomes water after the steam temperature reduces, through collecting hot water, with its leading-in boiler once more, can the cycle water, the water of saving drying.

Drawings

Fig. 1 is a schematic structural view of the wood drying device of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 2;

fig. 4 is a cross-sectional view C-C of fig. 2.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 4, the wood drying device of the present invention comprises a boiler 1 and a drying kiln 2, specifically, a kiln door is arranged on one side of the drying kiln 2, the kiln door is a double door, which is convenient for opening and closing, a support plate 21 is arranged in the center of the top of the drying kiln 2, and the support plate 21 is not in contact with two sides of the drying kiln 2; a support frame 22 is arranged on the support plate 21; a plurality of electric heating devices 3 are uniformly distributed on one side of the supporting frame 22; as shown in fig. 4, the electric heating apparatus 3 of the present invention includes a frame 31 and an electric heating pipe 32; the electric heating pipes 32 are uniformly fixed on the frame 31, and the electric heating device 3 is connected with the electric cabinet 4 through a lead; the other side of the support frame 22 opposite to the support frame is provided with a plurality of heat exchangers 5, wherein the heat exchangers 5 are connected in series through pipelines; the boiler 1 is connected with the air inlet end of the heat exchanger 5 through an air transmission pipeline 6, and the air transmission pipeline 6 is provided with an electromagnetic valve; the air outlet end of the heat exchanger 5 is connected with a water collecting tank 8 through an air outlet pipeline 7; the top of the drying kiln 2 is provided with a plurality of fans 9; this fan 9 is arranged in backup pad 21 top centre in, and the wind that the fan blew out can blow from concentrating towards the backup pad 21 of centre like this, and the steam of being convenient for is by the centralized heating, the utility model discloses a concrete theory of operation does: by controlling the electric heating tube 32 on the electric heating device 3; or a combustion boiler 1, heating water by the boiler 1 to generate steam, and then introducing the steam into the heat exchanger 5 through the gas transmission pipeline 6, so that the steam is subjected to heat exchange in the heat exchanger 5 continuously, thereby releasing heat; at this moment, an air heating chamber is naturally formed at the top of the drying kiln 2, the fan 9 is started to blow air towards the center of the supporting plate 21, hot air is continuously heated between the two heating devices, air cannot penetrate through the supporting plate 21 due to the fact that the supporting plate 21 blocks left and right, the air enters the drying kiln 2 towards the two sides of the supporting plate 21, and hot air gradually exchanges heat with wood in the drying kiln 2, so that drying work of the wood is achieved.

Because the temperature reduces gradually after vapor and heat exchanger 5 heat transfer, finally comes out from heat exchanger 5 and becomes liquid water, because the water still has higher temperature this moment, if directly discharge, can cause the waste of heat energy, for cyclic utilization heat energy and water, this header tank 8 passes through return line 10 and connects boiler 2, is equipped with the backwash pump on the return line 10. Hot water is continuously pumped into the boiler 1 through the return pipe 10 to be continuously heated, so that waste of heat energy can be greatly reduced, and water resources are saved.

Because timber stoving process, moisture is constantly given off, consequently the damp gas increases in the drying kiln 2, in order to facilitate discharging too much steam, is equipped with a plurality of automatically controlled air doors 11 at drying kiln 2 top. Through the opening of automatically controlled air door to discharge steam, in order to facilitate the temperature and humidity of control in the drying kiln 2 of course, be equipped with temperature probe 12 and humidity probe 13 in the drying kiln 2, the output and the controller electricity of temperature probe 12 and humidity probe 13 are connected, and the output of controller is connected with electric heater unit 3, automatically controlled air door 11 and solenoid valve electricity respectively. When the temperature probe 12 detects that the temperature in the drying kiln 2 is higher than a set value, a signal is transmitted to the controller, the controller receives the signal and transmits an instruction to the electric heating device 3 and the electromagnetic valve, the hot air supply is stopped, the electric heating device 3 is stopped to ensure that the temperature is not too high, and the wood is prevented from being cracked due to the overhigh temperature; when the humidity probe 13 detects that the humidity in the drying kiln 2 is higher than the set value, a signal is transmitted to the controller, and the controller transmits an instruction to the electric control air door 11 to open the electric control air door, so that the humidity in the drying kiln 2 is removed (a circuit diagram of temperature control and humidity control, as a person skilled in the art, can be realized without creative labor, and therefore, the circuit diagram is not required to be provided, and the principle is not described any more).

In order to reduce the heat dissipation in the drying kiln 2, a heat insulation layer (not shown) is further arranged outside the drying kiln 2. In order to avoid scalding the gas transmission pipeline 6 and scalding staff, a heat insulation sleeve (marked in the figure) is sleeved outside the gas transmission pipeline 6.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A wood drying device comprises a boiler (1) and a drying kiln (2), and is characterized in that a kiln door is arranged on one side of the drying kiln (2), a support plate (21) is arranged in the center of the top of the drying kiln (2), and the support plate (21) is not in contact with the two sides of the drying kiln (2); a support frame (22) is arranged on the support plate (21); a plurality of electric heating devices (3) are uniformly distributed on one side of the support frame (22); the electric heating device (3) is connected with the electric cabinet (4) through a wire; the other side of the support frame (22) opposite to the support frame is provided with a plurality of heat exchangers (5), wherein the heat exchangers (5) are connected in series through pipelines; the boiler (1) is connected with the gas inlet end of the heat exchanger (5) through a gas transmission pipeline (6), and an electromagnetic valve is arranged on the gas transmission pipeline (6); the air outlet end of the heat exchanger (5) is connected with a water collecting tank (8) through an air outlet pipeline (7); the top of the drying kiln (2) is provided with a plurality of fans (9).

2. The wood drying device according to claim 1, characterized in that the water collection tank (8) is connected to the boiler (1) via a return pipe (10), and a return pump is arranged on the return pipe (10).

3. The wood drying device according to claim 1, characterized in that the fan (9) is placed at the very center of the top of the support plate (21).

4. A wood-drying device according to claim 1, characterised in that the kiln (2) is provided with a plurality of electrically controlled dampers (11) at the top.

5. The wood drying device according to claim 4, characterized in that a temperature probe (12) and a humidity probe (13) are arranged in the drying kiln (2), the output ends of the temperature probe (12) and the humidity probe (13) are electrically connected with a controller, and the output end of the controller is respectively electrically connected with the electric heating device (3), the electric control air door (11) and the electromagnetic valve.

6. The wood drying device according to claim 1, characterized in that the exterior of the drying kiln (2) is provided with a heat insulation layer.

7. The wood-drying device according to claim 1, characterized in that the electric heating device (3) comprises a frame (31) and an electric heating pipe (32); the electric heating pipes (32) are uniformly fixed on the frame (31).

8. The wood drying device according to claim 1, characterized in that the gas transmission pipeline (6) is externally sheathed with a heat insulation sleeve.