CN219494738U - Plank stoving board transfer chain that dries in air - Google Patents

Abstract

The utility model discloses a board drying and airing conveying line, which comprises a conveying line, a drying room and a hot air pipe, wherein the conveying line is used for conveying boards; the drying room at least covers part of the conveying line; the hot-blast pipe is connected with the external heat source, the hot-blast pipe stretches into inside the baking house, the hot-blast pipe is located the below of waiting to dry the plank, the hot-blast pipe is provided with the air outlet, the air outlet sets up. Utilize the hot-blast air that the hot-blast pipe blew out, when blowing away the moisture on plank surface, dry the plank, simultaneously, the hot-blast air that blows out can drive inside air and flow, and the air that flows can follow the baking house both ends and flow away to take away the moist gas that remains in the baking house, improve drying efficiency.

Description

Plank stoving board transfer chain that dries in air

Technical Field

The utility model relates to the field of wood board processing equipment, in particular to a wood board drying and airing conveying line.

Background

The process of drying the wood board in the processing process comprises the steps of airing and drying, wherein the existing drying mode is generally drying through heat radiation, for example, the utility model patent with the application number of CN202120073604.4 discloses a drying box for the wood board, which comprises a box body, a box cover, a heating mechanism and a positioning mechanism, wherein the box cover is connected with the box body in a sealing way; the heating mechanism and the positioning mechanism are both arranged in the box body, the heating mechanism comprises heating plates arranged in a row, the heating plates are arranged on the top and bottom box walls in the box body, the positioning mechanism is positioned in the middle position in the box body and comprises a mounting plate and at least one group of positioning plate groups connected with the mounting plate, and the positioning plate groups comprise positioning plates arranged in pairs; the locating plate is provided with a plurality of evenly distributed air holes, the air holes are through holes, the inner walls of the air holes are smooth hole surfaces, and air flow channels are arranged between the air holes so that adjacent air holes are communicated. This a stoving case for plank is in the in-process of using, is through the mode of thermal radiation to the plank heating stoving, at the in-process of stoving, and inside air can't effectively flow, and the produced moist gas still remains after the plank is heated and is dried, influences the efficiency of plank stoving.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a board drying and airing conveying line which can improve the drying efficiency of boards.

According to an embodiment of the first aspect of the utility model, the board drying and airing conveying line comprises a conveying line, a drying room and a hot air pipe, wherein the conveying line is used for conveying boards; the drying room at least covers part of the conveying line; the hot-blast pipe stretches into inside the baking house, the hot-blast pipe is located the below of waiting to dry the plank, the hot-blast pipe is provided with the air outlet, the air outlet sets up.

The board drying and airing conveying line provided by the embodiment of the utility model has at least the following beneficial effects: utilize the hot-blast air that the hot-blast pipe blew out, when blowing away the moisture on plank surface, dry the plank, simultaneously, the hot-blast air that blows out can drive inside air and flow, and the air that flows can follow the baking house both ends and flow away to take away the moist gas that remains in the baking house, improve drying efficiency.

According to some embodiments of the utility model, the conveyor line is provided with a plurality of fitting units for fitting the wooden boards, the plurality of fitting units being arranged at intervals along an extending direction of the conveyor line.

According to some embodiments of the utility model, the assembly unit holds the boards so that the boards are perpendicular to the surface of the conveyor line.

According to some embodiments of the utility model, the conveyor line is connected with a driving mechanism for driving the conveyor line to move, the driving mechanism being capable of controlling the speed of the conveyor line.

According to some embodiments of the utility model, the conveying line comprises a frame and a conveying chain wound on the frame, the conveying chain can circularly move on the frame, the assembling unit is fixed on the conveying chain, the conveying chain comprises an upper layer chain and a lower layer chain, and the hot air pipe is inserted between the upper layer chain and the lower layer chain.

According to some embodiments of the utility model, the hot air pipes are provided with a plurality of hot air pipes, the plurality of hot air pipes are connected with the same main air pipe, the main air pipe is connected with a heating mechanism, and one side of the heating mechanism away from the main air pipe is connected with a main air inlet fan.

According to some embodiments of the utility model, the heating mechanism comprises a chassis and a heating heat exchanger, the interior of the chassis is sealed, one side of the chassis is communicated with the main air pipe, and the other side of the chassis is communicated with the main air inlet fan; the heating heat exchanger is arranged in the case and is connected with the external heat source.

According to some embodiments of the utility model, a preheating heat exchanger is arranged in the case, a waste heat recovery pipe is connected between the case and the drying room, a secondary air inlet fan is arranged on the waste heat recovery pipe, the waste heat recovery pipe is connected to the preheating heat exchanger, and the preheating heat exchanger and the heating heat exchanger are arranged at intervals along the air inlet direction of the main air pipe.

According to some embodiments of the utility model, the outer wall of the waste heat recovery tube is wrapped with an insulating layer.

According to some embodiments of the utility model, the waste heat recovery tube is connected to the top of the drying room.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of one direction of a board drying and airing conveyor line according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a board drying and airing conveyor line according to an embodiment of the utility model;

FIG. 3 is a schematic view of another direction of a board drying and airing conveyor line according to an embodiment of the present utility model;

FIG. 4 is a simplified schematic diagram of a plank drying and airing conveyor line according to an embodiment of the present utility model;

fig. 5 is a schematic diagram of the cooperation of a conveying line and a hot air pipe of a board drying and airing conveying line according to an embodiment of the utility model;

FIG. 6 is a schematic diagram of an assembly of a hot air duct and a main air duct of a board drying and airing conveyor line according to an embodiment of the present utility model; the board drying and airing conveying line provided by the embodiment of the utility model

FIG. 7 is a schematic view of a hot blast pipe of a board drying and airing conveyor line according to an embodiment of the utility model;

fig. 8 is a schematic cross-sectional view of a waste heat recovery pipe of a board drying and airing conveyor line according to an embodiment of the utility model.

100. A conveying line; 110. an assembling unit; 120. a driving mechanism; 130. a frame; 140. a conveyor chain; 140A, upper chain; 140B, a lower chain; 200. a drying room; 210. a plate inlet; 220. a plate outlet; 300. a hot air pipe; 310. an air outlet; 320. a main air pipe; 400. a heating mechanism; 410. a chassis; 420. heating the heat exchanger; 430. preheating a heat exchanger; 500. a main air intake fan; 600. a secondary air intake fan; 610. a waste heat recovery pipe; 611. a heat preservation layer;

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 8, a board drying and airing conveyor line according to an embodiment of the present utility model includes a conveyor line 100, a drying room 200, and a hot air duct 300, the conveyor line 100 being used for conveying boards; the drying room 200 covers at least a portion of the conveyor line 100; the hot air pipe 300 is connected with an external heat source, the hot air pipe 300 stretches into the drying room 200, the hot air pipe 300 is located below the wood board to be dried, the hot air pipe 300 is provided with an air outlet 310, and the air outlet 310 is arranged upwards.

Referring to fig. 1 to 4, both ends of the drying room 200 are opened, respectively, the board inlet 210 and the board outlet 220, the transfer line 100 penetrates from the board inlet 210 and penetrates from the board outlet 220, wherein, in the arrow direction of fig. 1, the transfer line 100 transports the boards, and in the transportation process, the hot air pipe 300 blows out hot air in the direction B of fig. 1 and blows the boards on the transfer line 100, the hot air passes over the surfaces of the boards, thereby promoting the air flow on the surfaces of the boards, accelerating the drying speed, and simultaneously, the heat of the hot air exchanges heat with the surfaces of the boards, thereby increasing the temperature of the surfaces of the boards, heating the boards, further drying the boards in the drying room 200 by heat radiation, increasing the drying speed of the boards, and it is mentioned that the hot air is continuously output from the hot air pipe 300, so that the flow of air can be formed in the drying room 200, the moist air is promoted to flow out of the board inlet 210 and the board outlet 220 on both ends of the drying room 200, thereby effectively improving the drying efficiency of the drying room 200.

In summary, the hot air blown out by the hot air pipe 300 dries the wood board while blowing off the moisture on the surface of the wood board, and meanwhile, the blown hot air drives the air inside to flow, and the flowing air flows away from two ends of the drying room 200 and takes away the moist air remained in the drying room 200, so that the drying efficiency is improved.

In order to dry a plurality of boards at the same time, it should be mentioned that, referring to fig. 1 and 2, the conveyor line 100 is provided with a plurality of assembly units 110 for assembling the boards, the plurality of assembly units 110 being disposed at intervals along the extending direction of the conveyor line 100. So that there is a gap between the boards on the two assembly units 110 to facilitate the passage of hot air to heat and dry the boards, wherein, preferably, in order to improve the drying effect on the board surfaces and to improve the utilization of space, referring to fig. 1, the assembly units 110 clamp the boards so that the boards are perpendicular to the surfaces of the conveyor line 100. The boards perpendicular to the surface of the conveyor line 100 can fully utilize the space in the horizontal direction, so that the boards in the drying room 200 are as many as possible, and the overall drying efficiency is improved.

In some embodiments, referring to fig. 2 and 5, the conveyor line 100 includes a frame 130 and a conveyor chain 140 wound around the frame 130, the conveyor chain 140 is capable of circulating on the frame 130, the assembly unit 110 is fixed on the conveyor chain 140, and the conveyor chain 140 includes an upper chain 140A and a lower chain 140B, in order to avoid position interference of the hot air pipe 300 and the conveyor chain 140 and the assembly unit 110 on the conveyor chain 140, and the hot air pipe 300 is interposed between the upper chain 140A and the lower chain 140B.

In the actual use process, a user can assemble the wood board onto the assembling unit 110 at one end of the conveying line 100 near the board inlet 210 of the drying room 200, the wood board is conveyed to the inside of the drying room 200 along with the assembling unit 110 by the driving of the upper chain 140A, dried by the hot air pipe 300, removed from the board outlet 220, disassembled at one end of the conveying line 100 near the board outlet 220 of the drying room 200, and the assembling unit 110 of the disassembled wood board is transported and circulated to one end near the board inlet 210 of the drying room 200 by the lower chain 140B to reassemble the wood board to be dried.

In order to better control the drying effect of the wood board, the driving mechanism 120 for driving the conveying line 100 to move is connected to the conveying line 100, and the driving mechanism 120 can control the speed of the conveying line 100. The conveying speed of the whole conveying line 100 is controlled by the driving mechanism 120, so that the drying effect is ensured by matching with boards with different thicknesses and different humidities.

It should be noted that, the driving mechanism 120 may be a stepping motor, a three-phase motor with a speed sensor, or a motor with an intelligent speed-adjusting frequency converter, which can perform speed regulation.

Referring to fig. 6, a plurality of hot air pipes 300 in a board drying and airing board conveying line according to an embodiment of the present utility model are provided, the plurality of hot air pipes 300 are connected to a same main air pipe 320, and hot air is fed into a drying room 200 from the same main air pipe 320, wherein the main air pipe 320 is connected with a heating mechanism 400, one side of the heating mechanism 400 away from the main air pipe 320 is connected with a main air inlet fan 500, the main air inlet fan 500 is started, and outdoor air is sucked in, and the outdoor air enters the heating mechanism 400 to be heated, and forms hot air, and finally is input into the drying room 200 through the hot air pipes 300, wherein referring to fig. 4, the heating mechanism 400 comprises a case 410 and a heating heat exchanger 420, the inside of the case 410 is sealed, the sealed case 410 effectively prevents air loss, and meanwhile, heat preservation can be realized, one side of the case 410 is communicated with the main air pipe 320, and the other side is communicated with the main air inlet fan; the heating heat exchanger 420 is built in the case 410, and the heating heat exchanger 420 is connected with an external heat source, wherein the external heat source can be factory hot steam, so that high-temperature gas such as hot steam generated in other processing and production of the factory is effectively utilized, and the overall resource utilization rate is improved.

In order to improve the energy consumption utilization rate of the embodiment of the present utility model, referring to fig. 4, a preheating heat exchanger 430 is disposed in the cabinet 410, a waste heat recovery pipe 610 is connected between the cabinet 410 and the drying room 200, a secondary air intake fan 600 is disposed on the waste heat recovery pipe 610, the waste heat recovery pipe 610 is connected to the preheating heat exchanger 430, and the preheating heat exchanger 430 and the heating heat exchanger 420 are disposed at intervals along the air intake direction of the main air duct 320. The secondary air intake fan 600 is started to suck high-temperature gas in the drying room 200 into the waste heat recovery pipe 610 and transmit the high-temperature gas to the preheating heat exchanger 430 of the chassis 410 through the waste heat recovery pipe 610, so that a heat source is provided for the preheating heat exchanger 430, when external air is brought into the preheating heat exchanger 430, the external air is firstly heated for the first time through the preheating heat exchanger 430 and then secondarily heated when passing through the heating heat exchanger 420, the requirement for the external heat source is reduced, and the whole energy consumption is reduced. Further, in order to match the physical properties that the hot air density is low and naturally rises in the environment, referring to fig. 3 and 4, the heat recovery pipe 610 is connected to the top of the drying room 200 so as to recover the exhaust gas inside the drying room 200.

Specifically, referring to fig. 4, arrow C1 in fig. 4 is a flow path of heated hot air, and the heated hot air is dispersed into the hot air duct 300 through the main air duct 320, and the hot air in the hot air duct 300 is blown out along arrow C2, finally collected into the waste heat recovery duct 610, enters the preheating heat exchanger 430 through arrow E, finally discharged from the preheating heat exchanger 430, and is recovered, wherein arrow D in fig. 4 represents hot air from an external heat source, is discharged after heat exchange through the heating heat exchanger 420, and ensures that energy is continuously heated for the sucked air.

In order to ensure that the temperature of the exhaust gas in the heat recovery pipe 610 does not rapidly dissipate, referring to fig. 8, the outer wall of the heat recovery pipe 610 is covered with a heat insulation layer 611.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. The utility model provides a plank stoving board transfer chain that dries in air which characterized in that includes:

a conveyor line (100) for transporting the wood boards;

a drying room (200) covering at least part of the conveyor line (100);

the hot air pipe (300), hot air pipe (300) stretch into inside drying room (200), hot air pipe (300) are located the below of waiting to dry the plank, hot air pipe (300) are provided with air outlet (310), air outlet (310) set up.

2. The board drying and airing conveyor line according to claim 1, characterized in that the conveyor line (100) is provided with a plurality of assembling units (110) for assembling boards, and a plurality of the assembling units (110) are arranged at intervals along the extending direction of the conveyor line (100).

3. The board drying and airing line according to claim 2, characterized in that the assembling unit (110) clamps the board so that the board is perpendicular to the surface of the line (100).

4. -board drying and airing conveyor line according to any of the claims 1-3, characterized in that the conveyor line (100) is connected with a driving mechanism (120) for driving the movement of the conveyor line (100), the driving mechanism (120) being able to control the speed of the conveyor line (100).

5. A board drying and airing line according to claim 2 or 3, characterized in that the conveying line (100) comprises a frame (130) and a conveying chain (140) wound on the frame (130), the conveying chain (140) can circularly move on the frame (130), the assembling unit (110) is fixed on the conveying chain (140), the conveying chain (140) comprises an upper layer chain (140A) and a lower layer chain (140B), and the hot air pipe (300) is inserted between the upper layer chain (140A) and the lower layer chain (140B).

6. The board stoving and airing board transfer chain according to claim 1, characterized in that, hot-blast main (300) is provided with many, and many hot-blast main (300) are connected in same main tuber pipe (320), main tuber pipe (320) are connected with heating mechanism (400), heating mechanism (400) keep away from one side of main tuber pipe (320) is connected with main air inlet fan (500).

7. The board drying and airing board conveying line according to claim 6, characterized in that the heating mechanism (400) comprises:

the inside of the case (410) is sealed, one side of the case (410) is communicated with the main air pipe (320), and the other side of the case is communicated with the main air inlet fan;

and the heating heat exchanger (420) is arranged in the case (410), and the heating heat exchanger (420) is connected with an external heat source.

8. The board drying and airing board conveying line according to claim 7, characterized in that a preheating heat exchanger (430) is arranged in the machine case (410), a waste heat recovery pipe (610) is connected between the machine case (410) and the drying room (200), a secondary air inlet fan (600) is arranged on the waste heat recovery pipe (610), the waste heat recovery pipe (610) is connected to the preheating heat exchanger (430), and the preheating heat exchanger (430) and the heating heat exchanger (420) are arranged at intervals along the air inlet direction of the main air pipe (320).

9. The board drying and airing conveying line according to claim 8, wherein the outer wall of the waste heat recovery pipe (610) is wrapped with a heat insulation layer (611).

10. The board drying and airing conveyor line according to claim 8, characterized in that the waste heat recovery pipe (610) is connected to the top of the drying room (200).