A building formaldehyde oxidation reactor

Abstract

The present invention discloses a building formaldehyde oxidation reactor, comprising an oxidation barrel, the top of which is rotatably connected with a cover plate, the bottom of which is fixedly connected with a support leg, one side of which is connected with an air outlet pipe, the top of which is installed with an air inlet pipe, the bottom end of which penetrates the cover plate and extends to the inside of the oxidation barrel, a cooling device is installed at the inner bottom of the oxidation barrel, and the inside of the oxidation barrel is provided with: a temperature insulation device having a rotating outer ring; a temperature control device having a lifting frame; and a discharge device having a support column. The present invention relates to the field of formaldehyde reaction technology. The building formaldehyde oxidation reactor achieves the purpose of blocking low-temperature air used for cooling and cooling from entering the high-temperature reaction area of ​​formaldehyde, can avoid the problem of formaldehyde being cooled and reducing production efficiency during the production process, reduces heat waste, and improves the degree of intelligence.

Description

Technical Field

[0001] The invention relates to the technical field of formaldehyde reaction, in particular to a building formaldehyde oxidation reactor. Background Art

[0002] With the continuous expansion of formaldehyde industrial production and in-depth research on formaldehyde products, its production process has been improved day by day, and the requirements for formaldehyde production equipment have been continuously improved. The formaldehyde oxidation reactor is a key equipment for formaldehyde production. Methanol, air, and water vapor are introduced into the reactor, and an oxidation reaction occurs under heating and catalysis by a silver catalyst to produce formaldehyde. The high-temperature gas after the reaction is cooled to reach the finished product.

[0003] However, the existing formaldehyde oxidation reactor cannot prevent the low-temperature air used for cooling from entering the high-temperature reaction area of ​​formaldehyde. Formaldehyde is easily cooled during the production process, reducing production efficiency and increasing heat waste. The intelligence level is low and the space size of the formaldehyde high-temperature reaction area and the low-temperature cooling area cannot be changed according to the temperature changes inside the oxidation barrel. It is impossible to ensure that the silver catalyst is always in the high-temperature area to participate in the reaction of formaldehyde. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a building formaldehyde oxidation reactor, which solves the problem that the existing formaldehyde oxidation reactor cannot prevent low-temperature air used for cooling from entering the high-temperature reaction area of ​​formaldehyde, can avoid the problem of formaldehyde being cooled during the production process and reducing production efficiency, reduces heat waste, improves the degree of intelligence, and can change the spatial size of the formaldehyde high-temperature reaction area and the low-temperature cooling area according to the temperature change inside the oxidation barrel, ensuring that the silver catalyst is always in the high-temperature area to participate in the reaction of formaldehyde.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the present invention is implemented through the following technical solutions: a building formaldehyde oxidation reactor, comprising an oxidation barrel, the top of the oxidation barrel is rotatably connected to a cover plate, the bottom of the oxidation barrel is fixedly connected to a support leg, one side of the oxidation barrel is connected to an air outlet pipe, the top of the cover plate is equipped with an air inlet pipe, one end of the bottom of the air inlet pipe penetrates the cover plate and extends to the inside of the oxidation barrel, a cooling device is installed on the inner bottom of the oxidation barrel, and the inside of the oxidation barrel is provided with:

[0008] A temperature insulation device, the temperature insulation device has a rotating outer ring, an inner ring is installed on the inner wall of the rotating outer ring, and a fan blade is symmetrically installed on the top of the inner ring, the fan blade penetrates the inner ring and extends to the outside of the inner ring, and the rotating outer ring is pushed to rotate during the reaction inside the oxidation barrel, and the inner ring and the fan blade rotate simultaneously with the rotating outer ring, and the fan blade drives the high-temperature gas above the inner ring to move downward to the bottom of the inner ring, so as to prevent the low temperature generated by the cooling device from entering the high-temperature reaction area of ​​formaldehyde, reduce the influence of the low temperature required for formaldehyde cooling on the formaldehyde reaction process, ensure the efficiency of formaldehyde generation, and reduce heat waste;

[0009] The temperature control device comprises a lifting frame, an inflatable bag is installed inside the lifting frame, the top of the rotating outer ring is fixedly connected to the limit plate, the top of the lifting frame is fixedly connected to the limit plate, the inner bottom of the oxidation barrel is fixedly connected to an upward push spring, the top of the upward push spring is fixedly connected to the installation inner ring, the installation inner ring is slidably connected to the rotating outer ring, when the temperature of the upper surface area of ​​the installation inner ring is high, the inflatable bag is affected by the high temperature of the upper surface of the installation inner ring and expands in volume, the inflatable bag pushes the installation inner ring downward to squeeze the upward push spring and then drops to the lowest position, which can increase the formaldehyde height when the temperature inside the oxidation barrel is high The space for high-temperature reaction is reduced to improve the efficiency of formaldehyde generation. When the temperature of the upper surface area of ​​the inner ring is low, the temperature of the air inside the airbag decreases and the volume decreases. The upward spring pushes the inner ring to squeeze the airbag and then rise. The generated formaldehyde passes through the inner ring and enters the cooling area below for cooling. The cooled formaldehyde is discharged from the outlet pipe. After the temperature inside the oxidation barrel is reduced, the space for formaldehyde high-temperature reaction is reduced, ensuring that the formaldehyde moves to the cold zone device area below the inner ring before being cooled, avoiding the formaldehyde from cooling and staying on the upper surface of the inner ring during the movement, reducing the waste of formaldehyde and improving the cleanliness of the device.

[0010] The discharging device comprises a supporting column, a cross plate is fixedly connected to the top of the supporting column, the supporting column and the cross plate are alternately connected, a discharging groove is opened on the top of the cross plate, and the silver catalyst is placed in the discharging groove on the cross plate. When the temperature of the upper surface area of ​​the inner ring is installed is low, the temperature of the air inside the airbag is reduced and the volume is reduced. The push-up spring pushes the inner ring to squeeze the airbag and then rise. The cross plate and the silver catalyst above are raised at the same time. The height of the silver catalyst can be automatically raised when the temperature inside the oxidation barrel is reduced, thereby ensuring that the silver catalyst is in a high-temperature gas environment to accelerate the generation of formaldehyde, thereby improving the intelligence level of the device.

[0011] Preferably, the lifting frame has a bottom frame, the bottom of the bottom frame is fixedly connected to the mounting inner ring, an inner frame is slidably connected between the two sides of the inner wall of the bottom frame, and the top of the inner frame is fixedly connected to the limiting plate.

[0012] Preferably, a gear groove is evenly opened at one end of the outer bottom of the rotating outer ring, a driving groove is opened on one side of the oxidation barrel, the driving groove passes through the oxidation barrel, and a driving gear is slidably connected to the inner bottom of the driving groove, and the driving gear is meshed with the gear groove.

[0013] Preferably, one side of the oxidation barrel is fixedly connected to a support plate below the driving groove, and the top of the support plate is fixedly connected to a driving motor. The output end of the driving motor is fixedly connected to the driving gear. The driving motor drives the rotating outer ring to rotate via the driving gear, and the fan blade is driven by the rotating outer ring to rotate, thereby guiding the formaldehyde generated above the installed inner ring to move downward.

[0014] Preferably, the inner wall of the rotating outer ring is evenly provided with longitudinal grooves, and a limiting block is slidably connected between the two sides of the inner wall of the longitudinal groove, and the limiting block is fixedly connected to the mounting inner ring.

[0015] Preferably, a heat conducting plate is fixedly connected to the top of the mounting inner ring, and the heat conducting plates are fixedly connected to each other via a metal sheet, and the metal sheet penetrates the lifting frame and the airbag and extends to the interior of the airbag.

[0016] Preferably, a wind shield is fixedly connected to the top of the heat conducting plate, and contact holes are evenly opened on the top of the heat conducting plate. The installed inner ring drives the wind shield to move simultaneously during rotation, and the wind shield and the heat conducting plate are in contact with the air on the upper surface of the installed inner ring. The heat on the upper surface of the installed inner ring is then transferred to the inside of the airbag through the metal sheet, which can speed up the reaction speed of the airbag to the temperature of the upper surface of the installed inner ring and improve the sensitivity of the device to temperature.

[0017] Preferably, the cross plate has an intermediate plate, and extension plates are symmetrically installed on the outer side of the intermediate plate, and the discharge trough is opened on the top of the intermediate plate and the extension plate.

[0018] Preferably, an elastic groove is provided on one side of the extension plate close to the middle plate, and an elastic plate is fixedly connected to one side of the inner wall of the elastic groove by a tension spring, and one end of the elastic plate extending to the outside of the elastic groove is fixedly connected to the middle plate. After the silver catalyst is placed in the discharge trough, the overall mass of the cross plate increases, and the extension plate and the middle plate squeeze the elastic plate and then droop, and the outer end of the cross plate supported by the support column at the bottom of the middle plate squeezes the elastic plate and extends downward, and the middle of the cross plate supported by the support column at the bottom of the extension plate squeezes the elastic plate and extends downward, and the adjacent two layers of the cross plates are staggered, which increases the space between the silver catalysts, improves the efficiency of the contact reaction between the formaldehyde gas and the silver catalyst, and accelerates the speed of formaldehyde production.

[0019] (III) Beneficial effects

[0020] The present invention provides a building formaldehyde oxidation reactor, which has the following beneficial effects:

[0021] (1) The formaldehyde oxidation reactor of the building promotes the rotation of the rotating outer ring during the reaction process inside the oxidation barrel. The installed inner ring and the fan blade plate rotate simultaneously with the rotating outer ring. The fan blade plate drives the high-temperature gas above the installed inner ring to move downward to the bottom of the installed inner ring, thereby preventing the low temperature generated by the cooling device from entering the high-temperature reaction area of ​​formaldehyde, reducing the impact of the low temperature required for formaldehyde cooling on the formaldehyde reaction process, ensuring the efficiency of formaldehyde generation, and reducing heat waste.

[0022] (ii) In the formaldehyde oxidation reactor of the building, when the temperature of the upper surface area of ​​the inner ring is high, the air bag expands in volume due to the high temperature of the upper surface of the inner ring, and the air bag pushes the inner ring downward to squeeze the upward spring and then descends to the lowest position, which can increase the space for the high-temperature reaction of formaldehyde when the temperature inside the oxidation barrel is high, thereby improving the efficiency of formaldehyde generation.

[0023] (III) In the formaldehyde oxidation reactor of the building, when the temperature of the upper surface area of ​​the installed inner ring is low, the temperature of the air inside the airbag decreases and the volume decreases, the push-up spring pushes the installed inner ring to squeeze the airbag and then rise, and the generated formaldehyde passes through the installed inner ring and enters the cooling area below to cool down, and the cooled formaldehyde is discharged from the outlet pipe, which can reduce the space for high-temperature reaction of formaldehyde after the temperature inside the oxidation barrel is lowered, and ensure that the formaldehyde is moved to the cold zone device area below the installed inner ring before being cooled, so as to avoid the formaldehyde cooling and staying on the upper surface of the installed inner ring during the movement, thereby reducing the waste of formaldehyde and improving the cleanliness of the inside of the device.

[0024] (IV) The formaldehyde oxidation reactor of the building drives the wind shield to move simultaneously during the rotation of the installed inner ring. The wind shield and the heat conducting plate are in contact with the air on the upper surface of the installed inner ring, and then the heat on the upper surface of the installed inner ring is transferred to the inside of the air bag through the metal sheet, which can speed up the reaction speed of the air bag to the temperature of the upper surface of the installed inner ring and improve the sensitivity of the device to temperature.

[0025] (V) The formaldehyde oxidation reactor of the building is placed in the discharge trough on the cross plate through the silver catalyst. When the temperature of the upper surface area of ​​the inner ring is low, the temperature of the air inside the airbag decreases and the volume decreases. The push-up spring pushes the inner ring to squeeze the airbag and then rise. The cross plate and the silver catalyst above it rise at the same time. When the temperature inside the oxidation barrel decreases, the height of the silver catalyst can be automatically increased, ensuring that the silver catalyst is in a high-temperature gas environment to accelerate the generation of formaldehyde, thereby improving the intelligence level of the device.

[0026] (VI) In the formaldehyde oxidation reactor of the building, the overall mass of the cross plate is increased after the silver catalyst is placed inside the discharge trough, the extension plate and the middle plate squeeze the elastic plate and then droop, the outer end of the cross plate supported by the support column at the bottom of the middle plate squeezes the elastic plate and extends downward, the middle of the cross plate supported by the support column at the bottom of the extension plate squeezes the elastic plate and extends downward, and the adjacent two layers of the cross plates are staggered, which increases the space between the silver catalysts, improves the efficiency of the contact reaction between the formaldehyde gas and the silver catalyst, and accelerates the speed of formaldehyde production. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0028] Figure 2 It is an internal cross-sectional view of the present invention as a whole;

[0029] Figure 3 It is a schematic diagram of the structure of the rotating outer ring of the present invention;

[0030] Figure 4 It is an internal cross-sectional view of the rotating outer ring of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the cross plate of the present invention;

[0032] Figure 6 It is an internal cross-sectional view of the cross plate of the present invention.

[0033] In the figure: 1-oxidation barrel, 2-cover plate, 3-support leg, 4-exhaust pipe, 5-inlet pipe, 6-cooling device, 7-thermal insulation device, 71-rotating outer ring, 72-installing inner ring, 73-fan blade plate, 8-temperature control device, 81-lifting frame, 82-inflatable bag, 83-limiting plate, 84-upward spring, 9-discharging device, 91-support column, 92-cross plate, 921-middle plate, 922-extension plate, 93-discharging trough, 10-gear groove, 11-drive groove, 12-drive gear, 13-support plate, 14-drive motor, 15-longitudinal groove, 16-limiting block, 17-heat conduction plate, 18-metal sheet, 19-wind shield, 20-contact hole, 21-elastic groove, 22-tension spring, 23-elastic plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0035] See also Figure 1-4 The present invention provides a technical solution: a building formaldehyde oxidation reactor, comprising an oxidation barrel 1, a cover plate 2 is rotatably connected to the top of the oxidation barrel 1, a support leg 3 is fixedly connected to the bottom of the oxidation barrel 1, an air outlet pipe 4 is connected to one side of the oxidation barrel 1, an air inlet pipe 5 is installed on the top of the cover plate 2, one end of the bottom of the air inlet pipe 5 passes through the cover plate 2 and extends to the inside of the oxidation barrel 1, a cooling device 6 is installed on the inner bottom of the oxidation barrel 1, and the inside of the oxidation barrel 1 is provided with:

[0036] The temperature insulation device 7 comprises a rotating outer ring 71, an inner ring 72 is mounted on the inner wall of the rotating outer ring 71, a fan blade plate 73 is symmetrically mounted on the top of the inner ring 72, and the fan blade plate 73 penetrates the inner ring 72 and extends to the outside of the inner ring 72;

[0037] The temperature control device 8 has a lifting frame 81, an inflatable bag 82 is installed inside the lifting frame 81, the top of the rotating outer ring 71 is fixedly connected to the limit plate 83, the top of the lifting frame 81 is fixedly connected to the limit plate 83, the inner bottom of the oxidation barrel 1 is fixedly connected to the push-up spring 84, the top of the push-up spring 84 is fixedly connected to the installation inner ring 72, and the installation inner ring 72 is slidably connected to the rotating outer ring 71.

[0038] The lifting frame 81 has a bottom frame, the bottom of which is fixedly connected to the mounting inner ring 72 , an inner frame is slidably connected between the two sides of the inner wall of the bottom frame, and the top of the inner frame is fixedly connected to the limiting plate 83 .

[0039] A gear groove 10 is evenly opened at one end of the outer bottom of the rotating outer ring 71, and a driving groove 11 is opened on one side of the oxidation barrel 1. The driving groove 11 penetrates the oxidation barrel 1, and a driving gear 12 is slidably connected to the inner bottom of the driving groove 11, and the driving gear 12 meshes with the gear groove 10.

[0040] A support plate 13 is fixedly connected to one side of the oxidation barrel 1 below the driving groove 11, and a driving motor 14 is fixedly connected to the top of the support plate 13. The output end of the driving motor 14 is fixedly connected to the driving gear 12. The driving motor 14 drives the rotating outer ring 71 to rotate through the driving gear 12. The fan plate 73 is driven by the rotating outer ring 71 to rotate, and the formaldehyde generated above the installed inner ring 72 is guided to move downward.

[0041] The inner wall of the rotating outer ring 71 is evenly provided with longitudinal grooves 15 , and a limiting block 16 is slidably connected between the two sides of the inner wall of the longitudinal groove 15 , and the limiting block 16 is fixedly connected to the mounting inner ring 72 .

[0042] A heat conducting plate 17 is fixedly connected to the top of the inner ring 72 , and the heat conducting plates 17 are fixedly connected to each other via a metal sheet 18 . The metal sheet 18 penetrates the lifting frame 81 and the air bag 82 and extends to the inside of the air bag 82 .

[0043] A wind shield 19 is fixedly connected to the top of the heat conducting plate 17. Contact holes 20 are evenly opened on the top of the heat conducting plate 17. The installed inner ring 72 drives the wind shield 19 to move simultaneously during the rotation. The wind shield 19 and the heat conducting plate 17 are in contact with the air on the upper surface of the installed inner ring 72, and then the heat on the upper surface of the installed inner ring 72 is transferred to the inside of the inflatable bag 82 through the metal sheet 18, which can speed up the reaction speed of the inflatable bag to the temperature of the upper surface of the installed inner ring and improve the sensitivity of the device to temperature.

[0044] When in use, the silver catalyst is placed inside the oxidation barrel 1, and after the cover plate 2 is closed, formaldehyde raw gas including methanol and water vapor is introduced from the air inlet pipe 5. Methanol, air and water vapor react with the silver catalyst to produce formaldehyde. The formaldehyde moves to the bottom of the installed inner ring 72 and is cooled by the cooling device 6. The cooled formaldehyde is discharged from the air outlet pipe 4. During the reaction inside the oxidation barrel 1, the rotating outer ring 71 is driven to rotate, and the installed inner ring 72 and the fan blade plate 73 rotate simultaneously with the rotating outer ring 71. The fan blade plate 73 drives the high-temperature gas above the installed inner ring 72 to move downward to the bottom of the installed inner ring 72, so as to prevent the low temperature generated by the cooling device 6 from entering the high-temperature reaction area of ​​formaldehyde, reduce the influence of the low temperature required for formaldehyde cooling on the formaldehyde reaction process, ensure the efficiency of formaldehyde generation, and reduce heat waste.

[0045] When the temperature of the upper surface area of ​​the inner ring 72 is high, the volume of the air bag 82 expands due to the high temperature of the upper surface of the inner ring 72. The air bag 82 pushes the inner ring 72 downward to squeeze the push-up spring 84 and then drops to the lowest position, which can increase the space for the high-temperature reaction of formaldehyde when the temperature inside the oxidation barrel 1 is high, thereby improving the efficiency of formaldehyde generation.

[0046] When the temperature of the upper surface area of ​​the inner ring 72 is low, the temperature of the air inside the air-filled bag 82 decreases and the volume decreases. The upward push spring 84 pushes the inner ring 72 to squeeze the air-filled bag 82 and then rises. The generated formaldehyde passes through the inner ring 72 and enters the cooling area below to cool down. The cooled formaldehyde is discharged from the outlet pipe 4, which can reduce the space for high-temperature reaction of formaldehyde after the temperature inside the oxidation barrel 1 is lowered, and ensure that the formaldehyde is moved to the cold zone device area below the inner ring before being cooled, so as to avoid the formaldehyde cooling and staying on the upper surface of the inner ring during the movement, thereby reducing the waste of formaldehyde and improving the cleanliness of the inside of the device. Embodiment 2

[0047] See also Figure 1-6 The present invention provides a technical solution: on the basis of the first embodiment, a discharge device 9 is arranged inside the oxidation barrel 1, and the discharge device 9 has a support column 91, and a cross plate 92 is fixedly connected to the top of the support column 91. The support column 91 and the cross plate 92 are alternately connected, and a discharge trough 93 is opened on the top of the cross plate 92.

[0048] The cross plate 92 has a middle plate 921 , and an extension plate 922 is symmetrically mounted on the outer side of the middle plate 921 . The discharge trough 93 is opened on the top of the middle plate 921 and the extension plate 922 .

[0049] An elastic groove 21 is formed on one side of the extension plate 922 close to the middle plate 921 . An elastic plate 23 is fixedly connected to one side of the inner wall of the elastic groove 21 via a tension spring 22 . One end of the elastic plate 23 extending to the outside of the elastic groove 21 is fixedly connected to the middle plate 921 .

[0050] When in use, the silver catalyst is placed in the discharge groove 93 on the cross plate 92. When the temperature of the upper surface area of ​​the inner ring 72 is low, the temperature of the air inside the air bag 82 decreases and the volume decreases. The push-up spring 84 pushes the inner ring 72 to squeeze the air bag 82 and then rises. The cross plate 92 and the silver catalyst above it rise at the same time. The height of the silver catalyst can be automatically increased when the temperature inside the oxidation barrel decreases, ensuring that the silver catalyst is in a high-temperature gas environment to accelerate the generation of formaldehyde, thereby improving the intelligence of the device.

[0051] The support columns 91 are alternately installed at the middle plate 921 and the extension plate 922 of the cross plate 92. After the silver catalyst is placed in the discharge trough 93, the overall mass of the cross plate 92 increases. The extension plate 922 and the middle plate 921 squeeze the elastic plate 23 and then droop. The outer end of the cross plate 92 supported by the support columns 91 at the bottom of the middle plate 921 squeezes the elastic plate 23 and extends downward. The middle end of the cross plate 92 supported by the support columns 91 at the bottom of the extension plate 922 squeezes the elastic plate 23 and extends downward. The adjacent layers of the cross plates are staggered, which increases the space between the silver catalysts, improves the efficiency of the contact reaction between the formaldehyde gas and the silver catalyst, and speeds up the formaldehyde production.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A building formaldehyde oxidation reactor, comprising an oxidation barrel (1), the top of the oxidation barrel (1) is rotatably connected to a cover plate (2), the bottom of the oxidation barrel (1) is fixedly connected to a support leg (3), one side of the oxidation barrel (1) is connected to an air outlet pipe (4), the top of the cover plate (2) is equipped with an air inlet pipe (5), one end of the bottom of the air inlet pipe (5) passes through the cover plate (2) and extends to the inside of the oxidation barrel (1), and a cooling device (6) is installed at the inner bottom of the oxidation barrel (1), characterized in that: The oxidation barrel (1) is provided with: A temperature insulation device (7), the temperature insulation device (7) comprising a rotating outer ring (71), an inner wall of the rotating outer ring (71) being mounted with an inner ring (72), a fan blade plate (73) being symmetrically mounted on the top of the inner ring (72), the fan blade plate (73) penetrating the inner ring (72) and extending to the outside of the inner ring (72); A temperature control device (8), the temperature control device (8) comprising a lifting frame (81), an inflatable bag (82) being installed inside the lifting frame (81), the top of the rotating outer ring (71) being fixedly connected to a limit plate (83), the top of the lifting frame (81) being fixedly connected to the limit plate (83), the inner bottom of the oxidation barrel (1) being fixedly connected to an upward push spring (84), the top of the upward push spring (84) being fixedly connected to an installation inner ring (72), and the installation inner ring (72) being slidably connected to the rotating outer ring (71); A material discharge device (9), the material discharge device (9) comprising a support column (91), a cross plate (92) being fixedly connected to the top of the support column (91), the support column (91) and the cross plate (92) being alternately connected, and a material discharge trough (93) being provided at the top of the cross plate (92); The cross plate (92) comprises an intermediate plate (921), an extension plate (922) is symmetrically mounted on the outer side of the intermediate plate (921), the discharge groove (93) is arranged on the top of the intermediate plate (921) and the extension plate (922), an elastic groove (21) is arranged on a side of the extension plate (922) close to the intermediate plate (921), an elastic plate (23) is fixedly connected to one side of the inner wall of the elastic groove (21) via a tension spring (22), and one end of the elastic plate (23) extending to the outside of the elastic groove (21) is fixedly connected to the intermediate plate (921); The lifting frame (81) comprises a bottom frame, the bottom of which is fixedly connected to the mounting inner ring (72), an inner frame is slidably connected between the two sides of the inner wall of the bottom frame, and the top of the inner frame is fixedly connected to the limiting plate (83); A gear groove (10) is evenly formed at one end of the outer bottom of the rotating outer ring (71), a driving groove (11) is formed at one side of the oxidation barrel (1), the driving groove (11) penetrates the oxidation barrel (1), a driving gear (12) is slidably connected to the inner bottom of the driving groove (11), and the driving gear (12) is meshed with the gear groove (10); A heat conducting plate (17) is fixedly connected to the top of the mounting inner ring (72), and the heat conducting plates (17) are fixedly connected to each other via a metal sheet (18), and the metal sheet (18) penetrates the lifting frame (81) and the inflatable bag (82) and extends to the interior of the inflatable bag (82); A wind shield (19) is fixedly connected to the top of the heat conducting plate (17), and contact holes (20) are evenly arranged on the top of the heat conducting plate (17).

2. A building formaldehyde oxidation reactor according to claim 1, characterized in that: A support plate (13) is fixedly connected to one side of the oxidation barrel (1) below the driving groove (11), a driving motor (14) is fixedly connected to the top of the support plate (13), and an output end of the driving motor (14) is fixedly connected to the driving gear (12).

3. A building formaldehyde oxidation reactor according to claim 1, characterized in that: The inner wall of the rotating outer ring (71) is evenly provided with longitudinal grooves (15), and a limit block (16) is slidably connected between the two sides of the inner wall of the longitudinal groove (15), and the limit block (16) is fixedly connected to the mounting inner ring (72).

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