Plate fiber high-temperature softening device for bamboo product production

Abstract

The utility model discloses a board fiber high-temperature softening device for bamboo product production, which is characterized in that a softening box door is arranged on one side of a sealed softening box, a temperature monitor and a pressure detector are arranged in the sealed softening box, a pressure release valve is further arranged on the sealed softening box, and the sealed softening box is connected with a heating and humidifying device; according to the board fiber high-temperature softening device for bamboo product production, the conditions that in the prior art, wood can only be softened under normal pressure in the actual using process, the softening period is long, and the effect is relatively general are improved, by arranging the sealed softening box, pressurizing high-temperature hydrothermal treatment can be conducted on bamboo for 2-3 times, and the board fiber high-temperature softening device is suitable for being used for wood processing. Steam permeation can be accelerated through multiple pressurization and depressurization processes, the softening efficiency is improved, and the softening effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to timber processing equipment technical field especially relates to a board fiber high temperature softening device of bamboo product production. BACKGROUND

[0002] The wood is softened by hydrothermal treatment (steaming method), which mainly uses water to swell the non-crystalline region of cellulose, hemicellulose and lignin, to provide free volume space for the molecular movement, and gradually conducts heat to the wood from the outside to the inside, so that the molecules obtain enough energy. The main components of the cell wall of wood are: cellulose, hemicellulose and lignin. After the wood is treated by hydrothermal treatment, part of the hemicellulose is easily decomposed and dissolved into liquid state, the free hydroxyl groups on the molecular chain of the amorphous region of cellulose adsorb water, the water film in the intercellular space of cellulose is thickened, the distance between molecules is increased, and the attraction is reduced, so that the relative sliding under the action of external force is facilitated. The swelling deformation of wood is that water enters the non-crystalline region of wood, so that the volume of non-crystalline region of lignin, hemicellulose and cellulose is expanded, the free volume space is increased, and the plasticity of wood is improved. Heating can increase the energy of lignin, cellulose and hemicellulose molecules in the non-crystalline region. Under the action of water and heat, the non-crystalline region of cellulose swells, lignin is in viscous flow state, hemicellulose loses its connecting effect, and the plasticity of wood is increased.

[0003] At present, Chinese patent number: CN202311852535.7 discloses a kind of processing device of high-efficiency softening modified wood, including defibrator body, conveying belt, steaming bin, anti-blocking mechanism, dredging mechanism and circulation mechanism, the outer side of the conveying belt is equipped with two baffle, the bottom of two baffle is fixedly connected with fixed plate, the anti-blocking mechanism is installed at the top of the defibrator body, to move the wood chip falling, prevent wood chip from being stuck in feed area;The dredging mechanism is installed at the bottom of the defibrator body, to agitate the discharged wood chip, prevent wood chip from being blocked in discharge area. When the wood chip is transported and discharged by conveying belt, start motor one to make two reciprocating screw rods rotate, so that two anti-blocking rods move up and down, continuously move wood chip, prevent wood chip from being accumulated and blocked, avoid affecting the processing of subsequent wood chip. However, the prior art can only soften the wood under normal pressure in actual use, the softening period is long, and the effect is general. UTILITY MODEL CONTENTS

[0004] Therefore, in view of the above problems, the utility model provides a kind of board fiber high temperature softening device of bamboo product production, which solves the technical problems that the prior art can only soften the wood under normal pressure in actual use, the softening period is long, and the effect is general.

[0005] To achieve the above object, the utility model discloses the following technical scheme: A kind of board fiber high-temperature softening device for bamboo product production, its structure includes sealed softening box, softening box door, temperature monitor, pressure detector, pressure relief valve, heating and humidifying device, the side of the sealed softening box is provided with softening box door, temperature monitor is arranged in the sealed softening box, pressure detector, pressure relief valve is also arranged on the sealed softening box, the sealed softening box is connected with heating and humidifying device, and the heating and humidifying device includes heat-insulating shell, water inlet pipe, heating water tank, electric heater, steam heating tank, steam heater, steam temperature detector, output pipe, booster pump, the lower portion of the inside of heat-insulating shell is provided with heating water tank, the heating water tank is connected with water inlet pipe, the bottom portion of the inside of heating water tank is provided with electric heater, the upper end of heating water tank is connected with steam heating tank by pipeline, steam heater is arranged in the steam heating tank, steam temperature detector is arranged at the output end of steam heater, the output end of steam heater is connected with output pipe, and booster pump is arranged on the output pipe.

[0006] Further, the water inlet pipe is provided with a solenoid valve for controlling water inflow, and the solenoid valve is electrically connected with the water level detector in the heating water tank.

[0007] Further, the steam heater and the electric heater are of the same structure.

[0008] Further, the steam heater is vertically arranged along the steam flow direction.

[0009] Further, the outer layer of the heat-insulating shell is made of stainless steel, and a polyurethane heat-insulating layer is arranged on the inner side of the heat-insulating shell, and grates for ventilation and cooling are arranged on the upper and lower parts of the heat-insulating shell.

[0010] By adopting the foregoing technical scheme, the board fiber high-temperature softening device for bamboo product production has the advantages that the existing technology can only perform softening treatment on wood under normal pressure in actual use, the softening period is long, and the effect is general, the sealed softening box can perform 2-3 times of pressurized high-temperature hydrothermal treatment on bamboo wood, the process of multiple pressurization and depressurization can accelerate the penetration of steam and improve the softening efficiency, and the softening effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 is a structural schematic view of the utility model;

[0012] Fig. 2 is a structural schematic view of the heating and humidifying device of the utility model.

[0013] In the figure: 1, sealed softening box; 2, softening box door; 3, temperature monitor; 4, pressure detector; 5, pressure relief valve; 6, heating and humidifying device; 11, heat insulation shell; 12, water inlet pipe; 13, heated water tank; 14, electric heater; 15, steam heating tank; 16, steam heater; 17, steam temperature detector; 18, output pipe; 19, booster pump. DETAILED DESCRIPTION

[0014] The utility model is further illustrated in connection with the drawings and specific embodiments.

[0015] Reference Figs. 1-2 The embodiment provides a kind of board fiber high-temperature softening device of bamboo product production, its structure includes sealed softening box 1, softening box door 2, temperature monitor 3, pressure detector 4, pressure relief valve 5, heating and humidifying device 6, the softening box door 2 is arranged in the side of the sealed softening box 1, temperature monitor 3, pressure detector 4 are arranged in the inside of the sealed softening box 1, pressure relief valve 5 is also arranged on the sealed softening box 1, the sealed softening box 1 is connected with heating and humidifying device 6, the heating and humidifying device 6 includes heat insulation shell 11, water inlet pipe 12, heated water tank 13, electric heater 14, steam heating tank 15, steam heater 16, steam temperature detector 17, output pipe 18, booster pump 19, heated water tank 13 is arranged in the lower portion of the inside of heat insulation shell 11, the water inlet pipe 12 is connected with heated water tank 13, electric heater 14 is arranged in the bottom of the inside of heated water tank 13, the upper end of heated water tank 13 is connected with steam heating tank 15 by pipeline, steam heater 16 is arranged in the inside of steam heating tank 15, steam temperature detector 17 is arranged in the output end of steam heater 16, the output end of steam heater 16 is connected with output pipe 18, booster pump 19 is arranged on output pipe 18.

[0016] The electromagnetic valve for controlling water inlet is arranged on the water inlet pipe 12, and the electromagnetic valve is electrically connected with the water level detector in the heated water tank 13.

[0017] The steam heater 16 and the electric heater 14 are of the same structure,

[0018] The steam heater 16 is vertically arranged along the steam flow direction.

[0019] The outer layer of the heat insulation shell 11 is made of stainless steel material, and a polyurethane heat insulation layer is arranged on the inner side of the heat insulation shell 11, and grating for ventilation and cooling is arranged on the upper and lower portions of the heat insulation shell 11.

[0020] The plate fiber high-temperature softening device for bamboo product production improves the prior art which can only soften wood under normal pressure in actual use, and the softening period is long and the effect is general, through the sealing softening box 1, the bamboo wood can be treated by 2-3 times of pressurized high-temperature hydrothermal treatment, and the process of multiple pressurization and depressurization can make steam penetrate faster and improve the softening efficiency, and the softening effect is good.

[0021] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0022] In addition, it should be understood that although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A bamboo product production board fiber high temperature softening device, characterized by: The structure comprises a sealed softening box, a softening box door, a temperature monitor, a pressure detector, a pressure relief valve, a heating and humidifying device, one side of the sealed softening box is provided with the softening box door, the inside of the sealed softening box is provided with the temperature monitor and the pressure detector, the sealed softening box is further provided with the pressure relief valve, and the sealed softening box is connected with the heating and humidifying device; The heating and humidifying device comprises an insulating shell, a water inlet pipe, a heating water tank, an electric heater, a steam heating tank, a steam heater, a steam temperature detector, an output pipe and a booster pump, the inside of the lower part of the insulating shell is provided with the heating water tank, the heating water tank is connected with the water inlet pipe, the bottom of the inside of the heating water tank is provided with the electric heater, the upper end of the heating water tank is connected with the steam heating tank through a pipeline, the inside of the steam heating tank is provided with the steam heater, the output end of the steam heater is provided with the steam temperature detector, the output end of the steam heater is connected with the output pipe, and the output pipe is provided with the booster pump.

2. The bamboo product production board fiber high temperature softening device according to claim 1, characterized in that: An electromagnetic valve for controlling water inlet is arranged on the water inlet pipe, and the electromagnetic valve is electrically connected with a water level detector in the heating water tank.

3. The bamboo product production board fiber high temperature softening device according to claim 1, characterized in that: The steam heater and the electric heater are of the same structure, 4. The bamboo product production board fiber high temperature softening device according to claim 1, characterized in that: The steam heater is vertically arranged along the steam flow direction.

5. The bamboo product production board fiber high temperature softening device according to claim 1, characterized in that: The outer layer of the insulating shell is made of stainless steel, the inside of the insulating shell is provided with a polyurethane heat insulation layer, and the upper and lower parts of the insulating shell are provided with grilles for ventilation and cooling.

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