CN213290618U - Formaldehyde device falls in drum formula panel - Google Patents

Abstract

The utility model relates to a panel processing apparatus field discloses a drum formula panel falls formaldehyde device, rotary drum in including the frame and locating the frame, the rotary drum even has the motor, and rotary drum cavity is equipped with hot-blast feeding mechanism, and it has a plurality of fumaroles that link up the lateral wall to open on the rotary drum lateral wall, and the rotary drum lateral wall is equipped with a plurality of supporting component who are used for supporting panel. The continuous processing of panel can be realized to it, and can evenly handle the both sides of panel, promotes treatment effect and treatment effeciency by a wide margin.

Description

Formaldehyde device falls in drum formula panel

Technical Field

The utility model relates to a panel processing apparatus field particularly, relates to a formaldehyde device falls in drum formula panel.

Background

Formaldehyde, also known as forminal, is colorless and has pungent odor and irritation to human eyes and nose. Long-term and low-concentration formaldehyde contact can cause headache, dizziness, hypodynamia, sensory disturbance and immunity reduction, and can cause sleepiness, hypomnesis or neurasthenia and mental depression; the harm of chronic poisoning to the respiratory system is also huge, and long-term exposure to formaldehyde can cause respiratory dysfunction and hepatotoxic lesions, manifested as liverCell damage, abnormal hepatic radiant energy, etc. The main harm of formaldehyde is represented by stimulation to skin mucosa, and when the formaldehyde reaches a certain concentration indoors, people feel uncomfortable. Greater than 0.08m³The formaldehyde concentration can cause redness, itching, discomfort or pain in the throat, hoarseness, sneezing, chest distress, asthma, dermatitis, etc. The newly decorated room has high formaldehyde content and is the main cause of many diseases.

Therefore, the removal of formaldehyde during the preparation of the board for decoration has a high necessity, and since the separation of formaldehyde from the board can be effectively accelerated by heating and ventilation, the prior art often uses a heating device and a fan to treat the board, but the prior board formaldehyde treatment device generally has the following problems: on one hand, a fixed placing mode is mostly adopted to process one batch of plates, the plates are taken out after being processed, another batch of plates are placed, a large amount of manpower is consumed in the process, the power supply needs to be started and stopped once for each replacement, and the plates can enter after the temperature in the heating bin is reduced, so that the processing efficiency is seriously influenced; on the other hand, the air flow on the surface of the plate is not uniform, the treatment efficiency of the two surfaces of the plate is not uniform, and the treatment effect is not ideal.

The present application is made in view of this feature.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a formaldehyde device is fallen to drum formula panel, its continuous processing that can realize panel, and can evenly handle the two sides of panel, promote treatment effect and treatment effeciency by a wide margin.

The embodiment of the application is realized by the following technical scheme:

the utility model provides a cylinder formula panel formaldehyde-reducing device, includes the frame and locates the rotary drum in the frame, and the rotary drum even has the motor, and the rotary drum cavity is equipped with hot-blast feeding mechanism, and it has a plurality of fumaroles that link up the lateral wall to open on the rotary drum lateral wall, and the rotary drum lateral wall is equipped with a plurality of supporting component who are used for supporting panel.

Furthermore, a plurality of the support assemblies are uniformly distributed along the circumference of the outer side wall of the rotary drum to form a plurality of support rings, the support rings are uniformly distributed along the axial direction of the rotary drum, and the corresponding support assemblies of two adjacent support rings are positioned on the same bus of the rotary drum.

Further, the supporting component comprises a first supporting piece and a second supporting piece which are arranged oppositely, a plate accommodating space is reserved between the first supporting piece and the second supporting piece, the first supporting piece comprises a first supporting arm and a second supporting arm, the first supporting arm and the second supporting arm are arranged along the radial direction of the rotary drum, a supporting surface formed by the first supporting arm and the second supporting arm is parallel to the axis of the rotary drum, the second supporting piece comprises a third supporting arm and a fourth supporting arm, the third supporting arm and the fourth supporting arm are arranged along the radial direction of the rotary drum, and a supporting surface formed by the third supporting arm and the fourth supporting arm is parallel to the axis of the rotary drum.

Furthermore, buffering supporting layers are paved on the supporting surfaces of the first supporting arm, the second supporting arm, the third supporting arm and the fourth supporting arm.

Furthermore, a heat preservation bin is arranged outside the rotary drum, the heat preservation bin is provided with a plurality of pairs of feeding holes and discharging holes, the corresponding feeding holes and the corresponding discharging holes are horizontally and oppositely arranged and are located at two ends of the horizontal diameter of the rotary drum, each feeding hole is provided with a feeding conveyor belt, each discharging hole is provided with a discharging conveyor belt, and the widths of the feeding conveyor belts and the discharging conveyor belts are smaller than the distance between the first supporting arm and the second supporting arm and smaller than the distance between the third supporting arm and the fourth supporting arm.

Furthermore, hot-blast feeding mechanism includes air inlet end cover, many electrical heating rod and fan, the air inlet end cover closes with a rotary drum end cover, and the air inlet end cover is opened there is the air inlet grid, the fan is located one side that the air inlet end cover is located the rotary drum, many the electrical heating rod is located in the rotary drum along the rotary drum axial.

Further, an air inlet filter screen is laid between the grid plates of the air inlet grille.

The utility model provides a pair of formaldehyde device is fallen to drum formula panel's beneficial effect is:

(1) the rotary drum is arranged, the plurality of supporting assemblies used for supporting the plates are arranged on the outer side wall of the rotary drum, so that the rotary drum can simultaneously bear a plurality of plates and drive the plates to rotate together, the rotary drum is always in a slow rotating state, the plates can be periodically placed on the plurality of supporting assemblies through a manual or mechanical mechanism, the plates follow the rotary drum and move from one side to the other side along the upper half circular arc of the rotary drum, a processing period is completed, then the plates are taken down from the supporting assemblies, a power supply does not need to be started or stopped, and the processing efficiency and the processing effect are effectively improved; through setting up the rotary drum for the cavity section of thick bamboo to set up hot-blast feeding mechanism in hollow rotary drum, and set up a plurality of fumaroles on the rotary drum lateral wall, make hot-blast the even outside blowout through a plurality of fumaroles of hot-blast feeding mechanism production, thereby form the hot gas flow of fast flow on the surface of the panel that the rotary drum bore and bear, heat panel, and accelerate the gas velocity on panel surface, thereby implement to panel and fall formaldehyde and handle.

(2) The first supporting piece and the second supporting piece are arranged, a plate accommodating space is reserved between the first supporting piece and the second supporting piece, the plate is inserted into the plate reserved space, the first supporting piece supports the plate when the plate is in a climbing stage in the process that the plate moves along the upper semicircular arc of the rotary drum, and the second supporting piece supports the plate when the plate is in a descending stage, so that the plate is always in a supported state in the whole moving process, and the plate can stably run to finish the whole treatment process; the first support piece comprises a first support arm and a second support arm, so that the contact area between the first support piece and the plate is reduced while the plate is supported, the surface of the plate is basically exposed, hot air can better act on the surface of the plate, and similarly, the second support piece comprises a third support arm and a fourth support arm, so that the contact area between the second support piece and the plate is reduced while the other surface of the plate is supported; through setting up the radial setting of first support arm, second support arm, third support arm and fourth support arm all along the rotary drum, and set up the axis parallel of support plane and rotary drum, effectively prevent that panel from taking place skew and landing in the motion process.

(3) Through setting up the buffering supporting layer, prevent that panel from moving to the peak and taking place to support and collide with panel when changing to provide frictional force, prevent that panel from sliding or dropping.

(4) The heat preservation cabin is arranged, so that the heat preservation of the treatment environment is realized, and the waste gas generated by treatment is effectively isolated; the feeding conveyor belt is arranged, so that the plates are periodically conveyed to the outer side wall of the rotary drum, the plates can be just inserted into the supporting assembly, and two ends of the plates are respectively supported by the first supporting arm and the second supporting arm, so that the plates are separated from the feeding conveyor belt; through setting up exit conveyor to make exit conveyor's width be less than the distance between third support arm and the fourth support arm, during the unloading, be located panel on third support arm and the fourth support arm and fall to exit conveyor, third support arm and fourth support arm fall from exit conveyor both sides respectively, make panel and third support arm and fourth support arm break away from, and along with the exit conveyor ejection of compact.

(5) Through setting up many electrical heating rods, heat the air in the rotary drum, through setting up the fan to make the rotary drum seal, make the air of heating spout from the fumarole, through setting up the air inlet end cover, make the outside air can be introduced by the fan, through setting up the air inlet grid, carry out prefilter to the air of introducing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic top view of a cylindrical plate formaldehyde reducing device provided in an embodiment of the present invention;

fig. 2 is a schematic front view of a drum of a cylindrical plate formaldehyde reducing device provided in an embodiment of the present invention;

fig. 3 is a schematic view of the inner side of the drum and the end cover of the cylindrical plate formaldehyde reducing device provided by the embodiment of the present invention.

Icon: 10-a frame; 20-a rotating drum; 21-gas injection holes; 30-a motor; 40-a first support; 401-a first support arm; 402-a second support arm; 41-a second support; 411 — third support arm; 412-a fourth support arm; 42-a sheet receiving space; 43-a buffer support layer; 50-air inlet end cover; 501-an air inlet grille; 502-air intake screen; 51-an electrical heating rod; 52-a fan; 60-heat preservation bin; 61-a feed port; 611-a feed conveyor; 62-a discharge hole; 621-discharge conveyor belt.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Examples

Referring to fig. 1 to 3, the present embodiment provides a cylindrical plate formaldehyde reducing device, which includes a frame 10 and a rotating drum 20 disposed on the frame 10, specifically, in the present embodiment, a central axis of the rotating drum 20 is provided with a rotating shaft, the rotating shaft is fixedly connected to an inner side wall of the rotating drum 20 through a plurality of support rods, two ends of the rotating shaft extend out of the rotating drum and are rotatably connected to the frame 10, the rotating drum 20 is horizontally disposed, the rotating drum 20 is connected to a motor 30, specifically, an output end of the motor 30 is connected to a driving gear, the rotating shaft is connected to a driven gear, the driving gear and the driven gear are connected through a chain, the motor 30 is fixedly disposed on the frame 10, the motor 30 can drive the rotating drum 20 to rotate, the rotating drum 20 is hollow and is provided with a hot air supply device, a plurality of air injection holes 21 penetrating. By arranging the rotary drum 20 and arranging a plurality of supporting components for supporting the plates on the outer side wall of the rotary drum 20, the rotary drum 20 can simultaneously bear a plurality of plates and drive the plates to rotate together, the rotary drum 20 is always in a slow rotating state, the plates can be periodically placed on the supporting components through a manual or mechanical mechanism, the plates follow the rotary drum 20 and move from one side to the other side along the upper half arc of the rotary drum 20 to complete a processing period, and then the plates are taken down from the supporting components without starting or stopping a power supply, so that the processing efficiency and the processing effect are effectively improved; through setting up rotary drum 20 for the cavity section of thick bamboo to set up hot-blast feeding mechanism in hollow rotary drum 20, and set up a plurality of fumaroles 21 on the rotary drum 20 lateral wall, make hot-blast that hot-blast feeding mechanism produced can evenly outwards spout through a plurality of fumaroles 21, thereby form the hot gas flow of fast flow on the surface of the panel that rotary drum 20 bore, heat panel, and accelerate the gas velocity on panel surface, thereby implement to fall formaldehyde to panel and handle.

In order to facilitate the taking and placing of the plate and the uniform processing of the plate, a plurality of support assemblies are uniformly distributed along the circumference of the outer side wall of the rotating drum 20 to form a plurality of support rings, the plurality of support rings are uniformly distributed along the axial direction of the rotating drum 20, and the corresponding support assemblies of two adjacent support rings are located on the same generatrix of the rotating drum 20. Through the arrangement, the distance between each plate borne by the rotary drum 20 is basically the same, so that the state of hot air flow on the surface of each plate is basically the same, and the corresponding support assemblies of the two adjacent support rings are positioned on the same bus, so that the plates positioned on the same bus can be fed and discharged at the same time, uniform management is facilitated, and butt joint of subsequent equipment is facilitated.

To explain the support assembly further, the support assembly includes a first support 40 and a second support 41 which are oppositely disposed, a plate material accommodating space 42 is reserved between the first support 40 and the second support 41, the first support 40 includes a first support arm 401 and a second support arm 402, the first support arm 401 and the second support arm 402 are both disposed along the radial direction of the drum 20, a support surface formed by the first support arm 401 and the second support arm 402 is parallel to the axis of the drum 20, the second support 41 includes a third support arm 411 and a fourth support arm 412, the third support arm 411 and the fourth support arm 412 are both disposed along the radial direction of the drum 20, and the support surface formed by the third support arm 411 and the fourth support arm 412 is parallel to the axis of the drum 20. By arranging the first supporting piece 40 and the second supporting piece 41, reserving a plate accommodating space 42 between the first supporting piece 40 and the second supporting piece 41, inserting the plate into the plate reserving space 42, wherein the first supporting piece 40 supports the plate when the plate is in a climbing stage in the process that the plate moves along the upper half arc of the rotary drum 20, and the second supporting piece 41 supports the plate when the plate is in a descending stage, so that the plate is always in a supported state in the whole moving process, and the plate can stably run to finish the whole processing process; by arranging the first support member 40 to comprise the first support arm 401 and the second support arm 402, the contact area between the first support member and the plate is reduced while the plate is supported, so that the surface of the plate is basically exposed, and hot air can better act on the surface of the plate; through setting up first support arm 401, second support arm 402, third support arm 411 and fourth support arm 412 and all along the radial setting of rotary drum 20, and set up the axis parallel of support plane and rotary drum 20, effectively prevent that panel from taking place skew and landing in the motion process.

In order to prevent the sheet from colliding with the sheet when the sheet moves to the highest point and is subjected to support change, the supporting surfaces of the first supporting arm 401, the second supporting arm 402, the third supporting arm 411 and the fourth supporting arm 412 are all paved with buffer supporting layers 43. The supporting buffer layer 43 is an elastic layer having high temperature resistance, for example, a high temperature resistant rubber layer such as butyl rubber, chlorohydrin rubber, or acrylate, and the supporting buffer layer 43 can provide friction force to further prevent the sheet from slipping or falling off.

In order to preserve heat of a processing environment, prevent pollution of the processing waste gas to the environment and realize automatic feeding and discharging, a heat preservation bin 60 is arranged outside the rotary drum 20, the heat preservation bin 60 is provided with a plurality of pairs of feeding ports 61 and discharging ports 62, the corresponding feeding ports 61 and discharging ports 62 are horizontally and oppositely arranged and are positioned at two ends of the horizontal diameter of the rotary drum 20, each feeding port 61 is provided with a feeding conveyor belt 611, each discharging port 62 is provided with a discharging conveyor belt 621, the widths of the feeding conveyor belt 611 and the discharging conveyor belts 621 are smaller than the distance between the first supporting arm 401 and the second supporting arm 402 and smaller than the distance between the third supporting arm 411 and the fourth supporting arm 412. The heat preservation bin 60 is arranged, so that heat preservation of a treatment environment is realized, waste gas generated by treatment is effectively isolated, and when the device is used, any one or more waste gas absorption devices in the prior art can be arranged in the heat preservation bin 60 to absorb the waste gas; the plate is periodically conveyed to the outer side wall of the rotary drum 20 by arranging the feeding conveyor belt 611, specifically, the feeding period of the feeding conveyor belt 611 is the same as the rotation period between two adjacent support assemblies of the support ring on the outer side wall of the rotary drum 20, so that the plate can be just inserted into the support assemblies, and because the width of the feeding conveyor belt 611 is smaller than the distance between the first support arm 401 and the second support arm 402, two ends of the plate are respectively supported by the first support arm 401 and the second support arm 402, so that the plate is separated from the feeding conveyor belt 611; through setting up exit conveyor 621, and make exit conveyor 621's width be less than the distance between third support arm 411 and the fourth support arm 412, during the unloading, be located the panel on third support arm 411 and the fourth support arm 412 and fall to exit conveyor 621 on, third support arm 411 and fourth support arm 412 fall from exit conveyor 621 both sides respectively, make panel and third support arm 411 and fourth support arm 412 break away from, and along with the ejection of compact conveyer 621 ejection of compact.

For further explanation of the hot air supply device, the hot air supply device includes an air inlet end cover 50, a plurality of electric heating rods 51 and a fan 52, the air inlet end cover 50 is covered with one end of the rotary drum 20 (the other end of the rotary drum 20 is closed), the air inlet end cover 50 is opened with an air inlet grille 501, the fan 52 is disposed on one side of the air inlet end cover 50 located in the rotary drum 20, and the plurality of electric heating rods 51 are disposed in the rotary drum 20 along the axial direction of the rotary drum. Through setting up many electrical heating rod 51, heat the air in the rotary drum 20, through setting up fan 52 to make rotary drum 20 seal, make the air of heating spout from fumarole 21, through setting up air inlet end cover 50, make outside air can be introduced by fan 52, through setting up air inlet grid 501, carry out prefilter to the air of introducing.

In order to further filter the introduced air, a plurality of air intake screens 502 are laid between the grid plates of the air intake grille 501.

To sum up, the utility model provides a drum formula panel formaldehyde-reducing device, it is through setting up the rotary drum, and set up a plurality of supporting components that are used for supporting panel at the rotary drum lateral wall, make the rotary drum bear the weight of polylith panel simultaneously, and drive polylith panel and rotate together, and the rotary drum is in the state of slowly rotating all the time, can be through artifical or mechanical mechanism with periodic placing panel on a plurality of supporting components, panel follows the rotary drum, move from one side to the opposite side along the first half circular arc of rotary drum, accomplish a processing cycle, then take off panel from the supporting component, need not to open and shut the power, effectively promote treatment effeciency benefit reason effect; through setting up the rotary drum for the cavity section of thick bamboo to set up hot-blast feeding mechanism in hollow rotary drum, and set up a plurality of fumaroles on the rotary drum lateral wall, make hot-blast the even outside blowout through a plurality of fumaroles of hot-blast feeding mechanism production, thereby form the hot gas flow of fast flow on the surface of the panel that the rotary drum bore and bear, heat panel, and accelerate the gas velocity on panel surface, thereby implement to panel and fall formaldehyde and handle. The first supporting piece and the second supporting piece are arranged, a plate accommodating space is reserved between the first supporting piece and the second supporting piece, the plate is inserted into the plate reserved space, the first supporting piece supports the plate when the plate is in a climbing stage in the process that the plate moves along the upper semicircular arc of the rotary drum, and the second supporting piece supports the plate when the plate is in a descending stage, so that the plate is always in a supported state in the whole moving process, and the plate can stably run to finish the whole treatment process; the first support piece comprises a first support arm and a second support arm, so that the contact area between the first support piece and the plate is reduced while the plate is supported, the surface of the plate is basically exposed, hot air can better act on the surface of the plate, and similarly, the second support piece comprises a third support arm and a fourth support arm, so that the contact area between the second support piece and the plate is reduced while the other surface of the plate is supported; through setting up the radial setting of first support arm, second support arm, third support arm and fourth support arm all along the rotary drum, and set up the axis parallel of support plane and rotary drum, effectively prevent that panel from taking place skew and landing in the motion process. Through setting up the buffering supporting layer, prevent that panel from moving to the peak and taking place to support and collide with panel when changing to provide frictional force, prevent that panel from sliding or dropping. The heat preservation cabin is arranged, so that the heat preservation of the treatment environment is realized, and the waste gas generated by treatment is effectively isolated; the feeding conveyor belt is arranged, so that the plates are periodically conveyed to the outer side wall of the rotary drum, the plates can be just inserted into the supporting assembly, and two ends of the plates are respectively supported by the first supporting arm and the second supporting arm, so that the plates are separated from the feeding conveyor belt; through setting up exit conveyor to make exit conveyor's width be less than the distance between third support arm and the fourth support arm, during the unloading, be located panel on third support arm and the fourth support arm and fall to exit conveyor, third support arm and fourth support arm fall from exit conveyor both sides respectively, make panel and third support arm and fourth support arm break away from, and along with the exit conveyor ejection of compact. Through setting up many electrical heating rods, heat the air in the rotary drum, through setting up the fan to make the rotary drum seal, make the air of heating spout from the fumarole, through setting up the air inlet end cover, make the outside air can be introduced by the fan, through setting up the air inlet grid, carry out prefilter to the air of introducing.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (7)

1. The utility model provides a formaldehyde device is fallen to cylinder formula panel, its characterized in that, includes frame (10) and locates rotary drum (20) on frame (10), and rotary drum (20) even have motor (30), and rotary drum (20) cavity is equipped with hot-blast feeding mechanism, and it has a plurality of fumaroles (21) that link up the lateral wall to open on rotary drum (20) lateral wall, and rotary drum (20) lateral wall is equipped with a plurality of supporting component that are used for supporting panel.

2. The cylindrical plate formaldehyde reducing device according to claim 1, wherein a plurality of the support assemblies are uniformly distributed along the circumference of the outer side wall of the rotating drum (20) to form a plurality of support rings, the plurality of support rings are uniformly distributed along the axial direction of the rotating drum (20), and the corresponding support assemblies of two adjacent support rings are located on the same generatrix of the rotating drum (20).

3. The formaldehyde reducing device for cylindrical plates according to claim 1, wherein the support assembly comprises a first support member (40) and a second support member (41) which are oppositely arranged, a plate accommodating space (42) is reserved between the first support member (40) and the second support member (41),

the first support part (40) comprises a first support arm (401) and a second support arm (402), the first support arm (401) and the second support arm (402) are arranged along the radial direction of the rotary drum (20), a support surface formed by the first support arm (401) and the second support arm (402) is parallel to the axis of the rotary drum (20),

the second supporting part (41) comprises a third supporting arm (411) and a fourth supporting arm (412), the third supporting arm (411) and the fourth supporting arm (412) are arranged along the radial direction of the rotary drum (20), and a supporting surface formed by the third supporting arm (411) and the fourth supporting arm (412) is parallel to the axis of the rotary drum (20).

4. The formaldehyde reducing device for cylindrical plates according to claim 3, wherein the supporting surfaces of the first supporting arm (401), the second supporting arm (402), the third supporting arm (411) and the fourth supporting arm (412) are all provided with a buffer supporting layer (43).

5. The formaldehyde reducing device for cylindrical plates according to claim 3, wherein a heat-preserving bin (60) is arranged outside the rotating cylinder (20), the heat-preserving bin (60) is provided with a plurality of pairs of feeding ports (61) and discharging ports (62), the corresponding feeding ports (61) and discharging ports (62) are horizontally and oppositely arranged and are positioned at two ends of the horizontal diameter of the rotating cylinder (20),

every feed inlet (61) is equipped with feeding conveyer belt (611), every discharge gate (62) is equipped with ejection of compact conveyer belt (621), feeding conveyer belt (611) and ejection of compact conveyer belt (621) width are less than the distance between first support arm (401) and second support arm (402) to be less than the distance between third support arm (411) and fourth support arm (412).

6. The formaldehyde reducing device for cylindrical plates according to claim 1, wherein the hot air supply device comprises an air inlet end cover (50), a plurality of electric heating rods (51) and a fan (52),

the air inlet end cover (50) is covered with one end of the rotary drum (20), the air inlet end cover (50) is provided with an air inlet grille (501),

the fan (52) is arranged on one side of the air inlet end cover (50) positioned in the rotary drum (20),

the plurality of electric heating rods (51) are arranged in the rotary drum (20) along the axial direction of the rotary drum.

7. The formaldehyde reducing device for cylindrical plates as claimed in claim 6, wherein an air inlet screen (502) is laid between grid plates of the air inlet grids (501).

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