A high-efficiency and environmentally friendly carbonization furnace

Abstract

The present invention relates to the technical field of carbonization furnaces, and in particular to a high-efficiency and environmentally friendly carbonization furnace. Technical problem: The method of controlling the expansion and contraction of the muffle furnace by external force in the existing device has the hidden danger of causing the muffle to deform and crack at the muffle weld, and no effective measures are taken to solve the expansion and deformation problem caused by the heating of the muffle, which cannot guarantee the service life of the muffle. At the same time, it is impossible to handle the tar attached to the device, resulting in a high failure rate of the device. Technical solution: A high-efficiency and environmentally friendly carbonization furnace, comprising a furnace body and a muffle furnace, etc.; the muffle furnace is installed in the furnace body. The present invention achieves the goal of maintaining the temperature difference and air pressure inside and outside the muffle furnace at a constant state by guiding the high-temperature exhaust gas into the interlayer located outside the muffle furnace, reducing the deformation of the muffle furnace caused by expansion and elongation due to continuous heating, extending the service life of the muffle furnace, and preventing the muffle furnace from leaking due to excessive deformation of the muffle furnace, resulting in carbonization failure of the product in the muffle furnace.

Description

Technical Field

[0001] The present invention relates to the technical field of carbonization furnaces, and in particular to a high-efficiency and environment-friendly carbonization furnace. Background Art

[0002] The carbonization furnace is a high-temperature processing equipment, the main function of which is to remove oxygen from the product in order to improve the product performance. Existing carbonization furnaces mostly use muffle furnaces with excellent thermal insulation performance.

[0003] According to the Chinese patent with publication number CN219886250U: a muffle tail clamping device in a carbonizing furnace, the device can effectively seal the muffle. Under high temperature conditions, the muffle is heated and elongated, driving the support block to move backward on the slider assembly. At the same time, the lower end of the accordion cover moves with the clamping block. When the temperature drops, the elongation of the muffle decreases, and the cylinder pushes the push plate and drives the clamping block to move forward at the same time, tightening the muffle, effectively preventing the formation of gaps when the expansion and contraction of the muffle decreases. However, the method of using external force to control the expansion and contraction of the muffle furnace in this device has the hidden dangers of causing the muffle to deform and the muffle welds to crack. At the same time, the device only takes into account the problem of the expansion and contraction of the muffle due to heat, and does not take effective measures to solve the expansion and deformation problem caused by the heat of the muffle. As a result, the muffle is greatly deformed after long-term use, and the service life of the muffle cannot be guaranteed, which makes the manufacturer bear the high cost of replacing the muffle.

[0004] Furthermore, the device is unable to process the tar generated during the operation of the carbonization furnace, which causes the device to malfunction due to the adhesion of a large amount of tar, and also makes the maintenance of the device difficult. Summary of the Invention

[0005] In order to overcome the disadvantages of the existing device that uses external force to control the expansion and contraction of the muffle furnace, which has the risk of causing the muffle to deform and the muffle welds to crack, and no effective measures are taken to solve the expansion deformation problem caused by the heating of the muffle, the service life of the muffle cannot be guaranteed, and the tar attached to the device cannot be processed, resulting in a high failure rate of the device, the present invention provides a high-efficiency and environmentally friendly carbonization furnace.

[0006] Technical solution: A high-efficiency and environmentally friendly carbonization furnace, comprising a furnace body and a muffle furnace; the furnace body is provided with a muffle furnace; further comprising an isolation plate, a movable plate, an exhaust assembly and a tar guide system; a plurality of isolation plates are provided in the furnace body; each isolation plate is slidably connected to the outer side of the muffle furnace; the outer side of the muffle furnace is movably connected to a plurality of movable plates for applying tar to the weld of the muffle furnace; each movable plate is located between a plurality of isolation plates; the plurality of isolation plates and the movable plates together form a gap between the outer side of the muffle furnace and the inner wall of the furnace body for tar to be applied to the weld of the muffle furnace An interlayer for storing waste gas; a through hole is provided in the middle of the upper side of the muffle furnace for guiding the waste gas into the interlayer; a first air inlet is provided on the upper inner side of each isolation plate; a first guide groove is provided on the upper side of each isolation plate; each first air inlet is connected to the adjacent first guide groove; a number of scraping grooves are provided on the inner side of each movable plate for evenly distributing the tar at the muffle furnace weld; an exhaust assembly for discharging waste gas in batches is installed on the upper side of the furnace body; a tar guiding system is provided on the outer side of the muffle furnace for concentrating the tar at the muffle furnace weld.

[0007] It is further explained that each first guide groove is arranged to be inclined downward, and the opening is directed toward the upper surface of the muffle furnace.

[0008] Further explanation: the exhaust assembly includes an exhaust pipe and a solenoid valve; the exhaust pipe is connected to the upper side of the furnace body; several branches are provided on the exhaust pipe; each branch is equipped with a solenoid valve for controlling the exhaust gas passage in the branch; each branch is connected to the interlayer.

[0009] It is further explained that the tar guiding system includes an air guide pipe and a support plate; a number of air guide pipes for guiding part of the tar in the exhaust gas to the middle of the interlayer are fixed to the outside of the muffle furnace; a number of support plates are fixed to the outside of the muffle furnace for concentrating the tar at the weld on the lower side of the muffle furnace; each support plate is located below the adjacent air guide pipe; each air guide pipe and support plate are located below the adjacent weld; a second guide groove is provided on the lower side of each air guide pipe; a number of second air inlets are provided on each isolation plate; each second air inlet is connected to the adjacent air guide pipe; each movable plate is slidably connected to the adjacent air guide pipe and support plate; each air guide pipe and support plate are located on the lower side of the adjacent scraper groove.

[0010] It is further explained that the second guide groove is configured to open toward the middle of the outer surface of the muffle furnace.

[0011] It is further explained that the width of each supporting plate is greater than the air duct above it.

[0012] Further explanation, it also includes scraping blocks; a plurality of scraping blocks for scraping residual tar in the air duct are fixedly connected to the separated sides of the plurality of movable plates.

[0013] Further description, a scraper is also included; each movable plate is fixedly connected to a side close to the isolation plate with a scraper for scraping off the residual tar in the first guide groove.

[0014] Further description, it also includes a guide plate; a guide plate for increasing the scraping range of the scraper is fixedly connected to the first guide groove on each isolation plate; each guide plate is set to an arc surface on the side facing the opening of the first guide groove.

[0015] Further explanation: it also includes a waste discharge pipe and a sealing plate; a collection chamber for temporarily storing tar is opened at the lower inner side of the furnace body; the lower side of the furnace body is connected to the waste discharge pipe; the waste discharge pipe is connected to the collection chamber; a number of through grooves are opened at the lower inner side of the furnace body; the interlayer at the upper inner side of the furnace body is connected to the collection chamber through a number of through grooves; and a sealing plate is fixed in each through groove.

[0016] The beneficial effects of the present invention are as follows: the present invention achieves the goal of maintaining the temperature difference and air pressure inside and outside the muffle furnace at a constant state by guiding the high-temperature exhaust gas into the interlayer located outside the muffle furnace, reducing the deformation of the muffle furnace caused by expansion and elongation due to continuous heating, extending the service life of the muffle furnace, and preventing the muffle furnace from leaking due to excessive deformation of the muffle furnace, which would cause carbonization failure of the product in the muffle furnace;

[0017] By moving the movable plate horizontally and using the scraper groove, part of the tar is evenly distributed on the welds at the upper and lower parts of the outer side of the muffle furnace. The high-viscosity tar distributed on the welds prevents the further expansion of the weld cracks and prevents the rapid cooling of the muffle furnace caused by the cracking of the welds, which leads to the failure of carbonization of the product in the muffle furnace. This further extends the service life of the muffle furnace and improves the carbonization yield of the product.

[0018] The tar on the outer surface of the muffle furnace is retained at the weld through the air guide pipe and the support plate, further ensuring that the amount of tar attached to the weld meets the sealing requirements of the weld, thereby improving the sealing effect of the tar on the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a diagram of the furnace body in a closed state according to the present invention;

[0020] Figure 2 This is a diagram of the furnace body of the present invention in an open state;

[0021] Figure 3 is a cross-sectional view of the furnace body of the present invention;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the isolation plate of the present invention;

[0023] Figure 5 is a cross-sectional view of an isolation plate of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the movable plate of the present invention;

[0025] Figure 7 This is a diagram of the muffle furnace heating state of the present invention;

[0026] Figure 8 This is a diagram of the cooling state of the muffle furnace of the present invention;

[0027] Figure 9 This is a schematic diagram of the combined three-dimensional structure of the movable plate, air guide tube and support plate of the present invention;

[0028] Figure 10 A cross-sectional view of the assembly of the isolation plate, movable plate and air guide tube of the present invention;

[0029] Figure 11 This is a schematic diagram of the three-dimensional structure of the air guide tube portion of the present invention;

[0030] Figure 12 It is a schematic diagram of the three-dimensional structure of the movable plate and scraper combination of the present invention;

[0031] Figure 13 This is a schematic diagram of the combined three-dimensional structure of the isolation plate and the guide plate of the present invention;

[0032] Figure 14 It is a schematic diagram of the three-dimensional structure of the furnace body, waste discharge pipe and sealing plate combination of the present invention.

[0033] In the above drawings: 1-furnace body, 1001-interlayer, 1002-collecting chamber, 2-muffle furnace, 2001-through hole, 3-isolation plate, 3001-first air inlet, 3002-first guide groove, 3003-second air inlet, 4-movable plate, 4001-scraper groove, 101-exhaust pipe, 102-solenoid valve, 201-air guide pipe, 20101-second guide groove, 202-support plate, 203-scraper block, 301-scraper, 302-guide plate, 401-exhaust pipe, 402-sealing plate. DETAILED DESCRIPTION

[0034] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0035] Example 1

[0036] like Figure 3-Figure 8 As shown, a high-efficiency and environmentally friendly carbonization furnace includes a furnace body 1 and a muffle furnace 2; the muffle furnace 2 is installed in the furnace body 1;

[0037] It also includes an isolation plate 3, a movable plate 4, an exhaust assembly and a tar guiding system; two front-to-back symmetrical isolation plates 3 are arranged in the furnace body 1; each isolation plate 3 is slidably connected to the outer side of the muffle furnace 2; the outer side of the muffle furnace 2 is movably connected to two movable plates 4; each movable plate 4 is located between the two isolation plates 3; the two isolation plates 3 and the movable plate 4 together form an interlayer 1001 between the outer side of the muffle furnace 2 and the inner wall of the furnace body 1; a through hole 2001 is provided in the middle of the upper side of the muffle furnace 2; a first air inlet 3001 is provided on the upper part of the inner side of each isolation plate 3; a first guide groove 3002 is provided on the upper side of each isolation plate 3; each first air inlet 3001 is connected to the adjacent first guide groove 3002; four left-right symmetrical scraping grooves 4001 are provided on the inner side of each movable plate 4; an exhaust assembly is installed on the upper side of the furnace body 1; a tar guiding system is provided on the outer side of the muffle furnace 2.

[0038] Each first guide groove 3002 is set to be inclined downward, and the openings are all facing the upper surface of the muffle furnace 2; when the exhaust gas enters the interlayer 1001 from the first guide groove 3002, the exhaust gas is blown toward the upper surface of the muffle furnace 2, accelerating the flow rate of the tar on the upper surface of the muffle furnace 2, avoiding a large amount of tar remaining on the upper surface of the muffle furnace 2, and reducing the difficulty of cleaning the muffle furnace 2.

[0039] The exhaust assembly includes an exhaust pipe 101 and a solenoid valve 102; the exhaust pipe 101 is connected to the upper side of the furnace body 1; three branches are provided on the exhaust pipe 101; a solenoid valve 102 is installed on each branch; each branch is connected to the interlayer 1001; the passage in each exhaust pipe 101 is controlled by the solenoid valve 102, thereby realizing the batch discharge of exhaust gas from different areas in the interlayer 1001.

[0040] When the furnace body 1 is started to perform carbonization, the temperature in the muffle furnace 2 gradually rises, thereby generating exhaust gas containing tar inside the muffle furnace 2. Since the temperature in the muffle furnace 2 is in the process of heating up, the temperature has not reached the level that causes the muffle furnace 2 to deform. At this time, the first air inlet 3001 and the muffle furnace 2 are in a connected state, so that part of the exhaust gas enters the interlayer 1001 through the first guide groove 3002 from the first air inlet 3001, and the other part of the exhaust gas enters the interlayer 1001 through the through hole 2001, so that the exhaust gas enters the interlayer 1001 from different positions, thereby To prevent the local air pressure in the interlayer 1001 from being too high and causing local deformation of the muffle furnace 2, the solenoid valves 102 located at the front and rear sides of the exhaust pipe 101 are opened to discharge the exhaust gas from the front and rear of the interlayer 1001. At this time, since the solenoid valve 102 in the middle of the exhaust pipe 101 is in a closed state, a closed chamber is formed between the two movable plates 4. At the same time, since the exhaust gas continues to enter the chamber formed between the two movable plates 4 through the through hole 2001, the two movable plates 4 are affected by the continuously increasing air pressure in the chamber and move toward the side of the adjacent isolation plate 3, and gradually fit with the isolation plate 3. Figure 7 As shown; at the same time, the temperature in the muffle furnace 2 continues to rise, and the muffle furnace 2 expands and elongates due to the heat in a continuous high-temperature environment. When the two ends of the muffle furnace 2 are extended to the state of covering the first air inlet 3001, the solenoid valve 102 located at the front and rear sides of the exhaust pipe 101 is closed. At this time, the interlayer 1001 is connected to the muffle furnace 2 only by the through hole 2001, and the interlayer 1001 is filled with high-temperature exhaust gas containing tar, so that the temperature difference and air pressure inside and outside the muffle furnace 2 are maintained at a constant state, reducing the deformation of the muffle furnace 2 caused by the expansion and elongation due to continuous heating, extending the service life of the muffle furnace 2, and preventing the muffle furnace 2 from leaking due to excessive deformation of the muffle furnace 2, resulting in carbonization failure of the product in the muffle furnace 2.

[0041] When the muffle furnace 2 stops heating and enters the insulation cooling process, as the temperature in the muffle furnace 2 drops, the muffle furnace 2 will slowly return to its original state. During this process, the two ends of the muffle furnace 2 will gradually retract. When the two ends of the muffle furnace 2 retract to a state where they no longer block the first air inlet 3001, the solenoid valve 102 located in the middle of the exhaust pipe 101 is opened to discharge the exhaust gas in the chamber between the two movable plates 4. At the same time, the remaining exhaust gas in the muffle furnace 2 at this time enters the chamber between the adjacent isolation plate 3 and the movable plate 4 from the first guide groove 3002 through the first air inlet 3001. At this time, the two movable plates 4 It will slide toward the middle of the interlayer 1001 until the two movable plates 4 are in contact. During this process, the tar remaining on the outer surface of the muffle furnace 2 will be scraped off by the movable plate 4, and at the same time, part of the tar will be evenly distributed on the welds at the upper and lower parts of the outer side of the muffle furnace 2 through the scraping groove 4001. If the welds of the muffle furnace 2 crack during the cooling process of the muffle furnace 2, the high-viscosity tar distributed on the welds will be used to prevent the further expansion of the weld cracks, and at the same time, the rapid cooling of the muffle furnace 2 caused by the cracking of the weld will be prevented, which will lead to the failure of carbonization of the product in the muffle furnace 2. While further extending the service life of the muffle furnace 2, the carbonization yield of the product is improved.

[0042] Example 2

[0043] On the basis of Example 1, Figures 9-11 As shown, the tar guiding system includes an air guide pipe 201 and a support plate 202; two left-right symmetrical air guide pipes 201 are fixed to the outer side of the muffle furnace 2; two left-right symmetrical support plates 202 are fixed to the outer side of the muffle furnace 2; each support plate 202 is located below the adjacent air guide pipe 201; each air guide pipe 201 and the support plate 202 are located below the adjacent weld; a second guide groove 20101 is provided on the lower side of each air guide pipe 201; two left-right symmetrical second air inlets 3003 are provided on each isolation plate 3; each second air inlet 3003 is connected to the adjacent air guide pipe 201; each movable plate 4 is slidably connected to the adjacent air guide pipe 201 and the support plate 202; each air guide pipe 201 and the support plate 202 are located on the lower side of the adjacent scraper groove 4001.

[0044] The second guide groove 20101 is set to open toward the middle of the outer surface of the muffle furnace 2; the exhaust gas is blown toward the middle of the outer surface of the muffle furnace 2 through the second guide groove 20101, and then the tar flows along the outer surface of the muffle furnace 2 to the surface of the support plate 202, further ensuring that the amount of tar attached to the weld meets the sealing requirements of the weld.

[0045] The width of each support plate 202 is greater than the air duct 201 above it, so that the tar from the edge of the air duct 201 drips onto the surface of the support plate 202, increasing the tar retention on the surface of the support plate 202 and improving the sealing effect of the tar on the weld.

[0046] It also includes a scraper 203; two movable plates 4 are fixed with two left-right symmetrical scraper blocks 203 on the away sides; during the movement of the movable plate 4, the scraper blocks 203 are used to quickly scrape off the tar attached to the air duct 201, further reducing the difficulty of cleaning and maintenance of the carbonization furnace.

[0047] When the two movable plates 4 slide toward the middle of the interlayer 1001 at the same time and then scrape off the residual tar on the outer surface of the muffle furnace 2, since the muffle furnace 2 is in a slow cooling process, the interior of the muffle furnace 2 and the interlayer 1001 are still in a high temperature state, which makes the tar more fluid. A large amount of tar flows along the outer surface of the muffle furnace 2 to the lower side of the muffle furnace 2 under the influence of gravity, resulting in insufficient tar thickness for sealing the weld, reducing the sealing effect of the tar on the weld. At this time, the tar flowing downward along the outer surface of the muffle furnace 2 is intercepted by the air guide pipe 201 and the support plate 202, so that the tar is retained at the welds at the upper and lower parts of the outer side of the muffle furnace 2, so that the amount of tar attached to the welds meets the sealing requirements of the welds. Since the width of each support plate 202 is larger than the air guide pipe 201 above it , so that the tar from the edge of the air duct 201 drips onto the surface of the support plate 202, and at the same time, part of the exhaust gas with tar in the muffle furnace 2 is guided into the air duct 201 through the second air inlet 3003, and then the exhaust gas is blown to the middle of the outer surface of the muffle furnace 2 through the second guide groove 20101, so that the tar flows along the outer surface of the muffle furnace 2 to the surface of the support plate 202, further ensuring that the amount of tar attached to the weld meets the sealing requirements of the weld, improving the sealing effect of the tar on the weld, and further avoiding the rapid cooling of the muffle furnace 2 caused by the cracking of the weld, resulting in the failure of carbonization of the product in the muffle furnace 2, and in the process of movement of the movable plate 4, the tar attached to the air duct 201 is quickly scraped off by the scraper block 203, further reducing the difficulty of cleaning and maintenance of the carbonization furnace.

[0048] Example 3

[0049] On the basis of Example 1, Figure 12 and Figure 13 As shown, a scraper 301 is also included; each movable plate 4 is fixedly connected to a scraper 301 on one side close to the isolation plate 3; the scraper 301 is a metal sheet.

[0050] It also includes a guide plate 302; a guide plate 302 is fixedly connected to the first guide groove 3002 on each isolation plate 3; and each guide plate 302 is configured as an arc surface on the side facing the opening of the first guide groove 3002.

[0051] The waste gas containing tar continues to enter the interlayer 1001 through the first guide groove 3002, and the tar adheres to the first guide groove 3002, which causes the first guide groove 3002 to be blocked in the long run. When the movable plate 4 moves toward the side of the adjacent isolation plate 3, the scraper 301 is extended into the corresponding first guide groove 3002 to scrape off the residual tar on the upper inner side of the first guide groove 3002. At the same time, the scraper 301 extending into the first guide groove 3002 is guided by the guide plate 302 to bend downward and contact the lower inner side of the first guide groove 3002, so that when the movable plate 4 moves toward the middle of the interlayer 1001, it drives the scraper 301 to scrape off the residual tar on the lower inner side of the first guide groove 3002, preventing the tar from blocking the first guide groove 3002, ensuring that the first guide groove 3002 is continuously unobstructed, and reducing the failure rate and maintenance cost of the carbonization furnace.

[0052] Example 4

[0053] On the basis of Examples 1-3, Figure 1 、 Figure 2 and Figure 14 As shown, it also includes a waste discharge pipe 401 and a sealing plate 402; a collecting chamber 1002 is opened at the lower inner part of the furnace body 1; the waste discharge pipe 401 is connected to the lower side of the furnace body 1; the waste discharge pipe 401 is connected to the collecting chamber 1002; a plurality of through grooves are opened at the lower inner part of the furnace body 1; the interlayer 1001 at the upper inner part of the furnace body 1 is connected to the collecting chamber 1002 through a plurality of through grooves; a sealing plate 402 is fixed in each through groove; the sealing plate 402 is a metal sheet.

[0054] When the two movable plates 4 move toward the side of the adjacent isolation plate 3 respectively, the tar on the outer surface of the muffle furnace 2 is scraped to the lower front and rear sides of the interlayer 1001 respectively. At this time, the tar is collected into the collection chamber 1002 through the through grooves at the front and rear inner sides of the furnace body 1 respectively. When the two movable plates 4 move toward the middle of the interlayer 1001, the tar is collected into the collection chamber 1002 through the through grooves located in the middle inner side of the furnace body 1. Since the sealing plate 402 located in the through groove is a metal sheet, when the tar is squeezed into the through groove by the movable plate 4, the sealing plate 402 is squeezed by the tar and deformed downward, causing the tar to enter the collection chamber 1002. When the metal sheet is not squeezed by the tar, the sealing plate 402 will return to its original shape to seal the through groove, thereby preventing the exhaust gas from passing through the through groove and entering the chamber separated by the movable plate 4 at the same time, affecting the scraping of tar by the movable plate 4.

[0055] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall equally within the scope limited by the appended claims of the application.

Claims

1. A high-efficiency and environmentally friendly carbonization furnace, comprising a furnace body (1) and a muffle furnace (2); the muffle furnace (2) is installed in the furnace body (1); and is characterized in that: The furnace body (1) further comprises a plurality of isolation plates (3), a movable plate (4), an exhaust assembly and a tar guide system; a plurality of isolation plates (3) are arranged in the furnace body (1); each isolation plate (3) is slidably connected to the outer side of the muffle furnace (2); a plurality of movable plates (4) for applying tar to the weld of the muffle furnace (2) are movably connected to the outer side of the muffle furnace (2); each movable plate (4) is located between the plurality of isolation plates (3); the plurality of isolation plates (3) and the movable plates (4) together form an interlayer (1001) for storing exhaust gas between the outer side of the muffle furnace (2) and the inner wall of the furnace body (1); the muffle furnace (2) is provided with a plurality of movable plates (4) for applying tar to the weld of the muffle furnace (2); each movable plate (4) is located between the plurality of isolation plates (3); the plurality of isolation plates (3) and the movable plates (4) together form an interlayer (1001) for storing exhaust gas between the outer side of the muffle furnace (2) and the inner wall of the furnace body (1); A through hole (2001) is provided in the middle of the side for guiding the exhaust gas into the interlayer (1001); a first air inlet (3001) is provided on the upper inner side of each isolation plate (3); a first guide groove (3002) is provided on the upper side of each isolation plate (3); each first air inlet (3001) is connected to an adjacent first guide groove (3002); a plurality of scraping grooves (4001) are provided on the inner side of each movable plate (4) for evenly distributing the tar at the weld of the muffle furnace (2); an exhaust assembly for discharging the exhaust gas in batches is installed on the upper side of the furnace body (1); a scraping groove (4001) is provided on the outer side of the muffle furnace (2) for distributing the tar evenly. A tar guide system for concentrating oil at the weld of the muffle furnace (2); the tar guide system comprises an air guide pipe (201) and a support plate (202); a plurality of air guide pipes (201) for guiding part of the tar in the exhaust gas to the middle of the interlayer (1001) are fixedly connected to the outside of the muffle furnace (2); a plurality of support plates (202) for concentrating the tar at the weld on the lower side of the muffle furnace (2) are fixedly connected to the outside of the muffle furnace (2); each support plate (202) is located below the adjacent air guide pipe (201); each air guide pipe (201) and the support plate (202) are located below the adjacent weld; each air guide pipe ( 201) are provided with a second guide groove (20101) on the lower side; each isolation plate (3) is provided with a plurality of second air inlets (3003); each second air inlet (3003) is communicated with the adjacent air guide pipe (201); each movable plate (4) is slidably connected to the adjacent air guide pipe (201) and the supporting plate (202); each air guide pipe (201) and the supporting plate (202) are located on the lower side of the adjacent scraping groove (4001); and also include a scraping block (203); a plurality of scraping blocks (203) for scraping residual tar in the air guide pipe (201) are fixedly connected to the separated sides of the plurality of movable plates (4); It also includes a scraper (301); each movable plate (4) is fixedly connected to a scraper (301) on one side close to the isolation plate (3) for scraping off residual tar in the first guide groove (3002); it also includes a guide plate (302); each first guide groove (3002) on the isolation plate (3) is fixedly connected to a guide plate (302) for increasing the scraping range of the scraper (301); each guide plate (302) is configured as a curved surface on one side facing the opening of the first guide groove (3002).

2. The high-efficiency and environmentally friendly carbonization furnace according to claim 1, characterized in that: Each first guide groove (3002) is arranged to be inclined downward, and its opening faces the upper surface of the muffle furnace (2).

3. The high-efficiency and environmentally friendly carbonization furnace according to claim 1, characterized in that: The exhaust assembly comprises an exhaust pipe (101) and a solenoid valve (102); the upper side of the furnace body (1) is connected to the exhaust pipe (101); a plurality of branch pipes are provided on the exhaust pipe (101); each branch pipe is equipped with a solenoid valve (102) for controlling the exhaust gas passage in the branch pipe; each branch pipe is connected to the interlayer (1001).

4. The high-efficiency and environmentally friendly carbonization furnace according to claim 1, characterized in that: The second guide groove (20101) is configured to open toward the middle of the outer surface of the muffle furnace (2).

5. The high-efficiency and environmentally friendly carbonization furnace according to claim 1 is characterized in that: The width of each supporting plate (202) is greater than the air guide tube (201) above it.

6. The high-efficiency and environmentally friendly carbonization furnace according to claim 3, characterized in that: The furnace body (1) further comprises a waste discharge pipe (401) and a blocking plate (402); a collecting chamber (1002) for temporarily storing tar is provided at the lower inner portion of the furnace body (1); the waste discharge pipe (401) is connected to the lower side of the furnace body (1); the waste discharge pipe (401) is connected to the collecting chamber (1002); a plurality of through slots are provided at the lower inner portion of the furnace body (1); an interlayer (1001) at the upper inner portion of the furnace body (1) is connected to the collecting chamber (1002) via the plurality of through slots; and a blocking plate (402) is fixedly connected to each through slot.

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