Activation tube structure of multi-tube activation furnace

Abstract

The invention provides an activation tube structure of a multi-tube activation furnace, and belongs to the technical field of activation furnaces. The bottom end of the activating furnace body is provided with an inclined support frame; the middle part of the activating furnace body is provided with a central combustion chamber; a plurality of activating pipes which are uniformly distributed along the circumferential direction of the central combustion chamber are also arranged in the activating furnace body; one end of each activating pipe is provided with a raw material inlet communicated with the outside, and the other end of each activating pipe is provided with a raw material outlet; a steam stirring device is arranged in the activation pipe, sealing covers are arranged at the two ends of the activation furnace body respectively, the two ends of the activation pipe penetrate through the sealing covers at the two ends respectively, a discharging cavity communicated with the raw material outlets is further formed in the end, close to the raw material outlets, of the activation furnace body, and a discharging opening is formed in the bottom of the discharging cavity and connected with a cooling device. The raw materials are continuously stirred in the activation pipe and are in uniform and full contact with water vapor, so that the activation reaction efficiency of the raw materials can be effectively improved, the time required by activation is shortened, and the yield of activated carbon is increased to improve the performance of the activated carbon.

Description

Technical Field

[0001] The invention belongs to the technical field of activation furnaces and relates to an activation tube structure of a multi-tube activation furnace. Background Art

[0002] An activation furnace is a device specially used to convert wood or other cellulose raw materials into activated carbon. At present, in order to improve the production efficiency of the activation furnace, the activation furnace is usually designed with multiple activation tubes to improve production efficiency. The physical activation method of activated carbon is that the raw materials are contacted with activation gases such as water vapor or CO2 at high temperature to carry out an activation reaction. Although the existing activation furnace has multiple activation tubes that can carry out the activation reaction of the raw materials, there is still a problem that the raw materials cannot be fully and evenly contacted with activation gases such as water vapor or CO2 in the activation tubes, which still leads to low activation efficiency and activation quality of the raw materials. Summary of the invention

[0003] The object of the present invention is to provide an activation tube structure of a multi-tube activation furnace in view of the above problems.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An activation tube structure of a multi-tube activation furnace comprises an activation furnace body, wherein the activation furnace body is tilted and an inclined support frame is provided at the bottom end of the activation furnace body, a central combustion chamber is provided in the middle of the activation furnace body, a plurality of activation tubes evenly distributed along the circumference of the central combustion chamber are also provided in the activation furnace body, a raw material inlet connected to the outside is provided at one end of the activation tube, a raw material outlet is provided at the other end, a steam stirring device is provided in the activation tube, sealing covers are respectively provided at both ends of the activation furnace body, the sealing covers are respectively penetrated at both ends of the activation tube, a discharge cavity connected to each raw material outlet is also provided at the end of the activation furnace body near the raw material outlet, a discharge port is provided at the bottom of the discharge cavity, and a cooling device is connected to the discharge port.

[0006] The simultaneous operation of the activation tubes evenly distributed circumferentially can achieve large-scale, high-efficiency activated carbon production, maximize the use of heat generated by combustion in the central combustion chamber, and make each activation tube heated evenly, providing a better activation site for the raw materials. The steam stirring device in the activation tube can continuously stir the raw materials while providing water vapor, so that the raw materials and water vapor can be in uniform and sufficient contact, thereby improving the activation reaction efficiency of the raw materials, reducing the time required for activation, increasing the output of activated carbon, and ensuring the activation quality of activated carbon to improve the performance of activated carbon. Stirring the raw materials can also make the raw materials evenly heated in the activation tube, prevent local overheating or overcooling, and improve the activation efficiency and activation quality.

[0007] In the activation tube structure of the above-mentioned multi-tube activation furnace, the steam stirring device includes a steam pipe arranged at the center of the activation tube and distributed along the length direction of the activation tube, a stirring assembly is provided on the wall of the steam pipe, and a plurality of steam hole groups evenly distributed along the circumference of the steam pipe are also provided on the wall of the steam pipe, each group of the steam hole groups includes a plurality of steam holes evenly distributed along the length direction of the steam pipe, the air inlet end of the steam pipe is rotatably connected to the air supply pipe of the external combustion boiler, and the steam pipe is connected to a rotating drive structure capable of driving the steam pipe to rotate.

[0008] The water vapor generated by the external combustion boiler is transported to the steam pipe through the air supply pipe, and enters the activation pipe through the steam holes evenly distributed on the steam pipe to react with the raw materials for activation. The rotary drive structure can drive the steam pipe to rotate, and the rotation of the steam pipe can enable the stirring assembly to operate to stir the raw materials in the activation pipe, so that the raw materials can be heated evenly and come into uniform and sufficient contact with the water vapor, thereby improving the activation efficiency and activation quality.

[0009] In the activation tube structure of the above-mentioned multi-tube activation furnace, the stirring assembly includes a plurality of stirring plates arranged on the wall of the steam tube, distributed circumferentially along the steam tube and extending along the length direction of the steam tube, and the above-mentioned steam hole group is arranged between the circumferentially adjacent stirring plates.

[0010] Evenly distributed steam holes are set between adjacent stirring plates. When the steam holes output water vapor, the stirring plates rotate with the steam pipe to stir the raw materials in the activation pipe, ensuring that the raw materials can be evenly and fully contacted with the water vapor and the raw materials are evenly heated.

[0011] In the activation tube structure of the above-mentioned multi-tube activation furnace, the rotation drive structure includes a driven gear sleeved on the end of the steam tube extending out of the activation furnace body, a rotation driver is provided on the outside of the activation furnace body, and the output end of the rotation driver is sleeved with a driving gear meshing with the driven gear.

[0012] The rotary driver is running, and the output end of the rotary driver rotates to drive the driving gear to rotate and drive the driven gear to rotate, so as to synchronously drive the steam pipe to rotate so that the stirring plate on the steam pipe follows the rotation to stir the raw materials in the activation pipe. The driving gear and the driven gear are meshed for transmission, with accurate transmission ratio, high transmission accuracy, good transmission stability and reliable transmission.

[0013] In the activation tube structure of the above-mentioned multi-tube activation furnace, the air inlet end of the steam pipe is rotatably connected to the air supply pipe of the external combustion boiler through a rotating sealing structure, and the head end of the steam pipe extending into the activation tube is rotatably connected to the activation tube through a rotating connection structure.

[0014] The rotating sealing structure plays the role of rotating and connecting the steam pipe and the air supply pipe, which can reduce the friction and wear of the steam pipe when it rotates, maintain the rotation accuracy of the steam pipe, make the steam pipe rotate smoothly, and play a sealing role to prevent water vapor from overflowing; the rotating connection structure plays the role of positioning and fixing the head end of the steam pipe, and can reduce the friction and wear of the head end of the steam pipe when it rotates, maintain the rotation accuracy of the steam pipe, and make the steam pipe rotate smoothly.

[0015] In the activation tube structure of the above-mentioned multi-tube activation furnace, the rotating sealing structure includes an annular positioning step arranged in the end of the air supply pipe, the air inlet end of the steam pipe extends into the air supply pipe and abuts against the annular positioning step, and a first mounting groove is formed between the inner side wall of the air supply pipe end and the annular positioning step. A sealing bearing is provided in the first mounting groove, and the inner and outer rings of the sealing bearing respectively abut against the outer wall of the steam pipe and the inner wall of the first mounting groove.

[0016] The annular positioning step plays a positioning role for the air inlet end of the steam pipe. The sealed bearing between the air supply pipe and the steam pipe can reduce the friction and wear of the steam pipe when it rotates, maintain the rotation accuracy of the steam pipe, and play a sealing role to prevent water vapor from overflowing.

[0017] In the activation tube structure of the above-mentioned multi-tube activation furnace, the rotating connection structure includes a rotating fixed seat, and the rotating fixed seat is fixedly connected to the inner wall of the activation tube through positioning frames arranged on both sides. The rotating fixed seat is provided with a slot for inserting the steam pipe near the steam pipe end, and the head end of the steam pipe is inserted into the slot. A rotating bearing is provided between the steam pipe and the slot. The inner and outer rings of the rotating bearing are respectively abutted against the outer tube wall of the steam pipe and the inner tube wall of the slot, and a sealing cover is provided at the outer end of the rotating fixed seat.

[0018] The slot plays a role in positioning and fixing the head end of the steam pipe. The rotating bearing between the steam pipe and the slot can reduce the friction and wear of the head end of the steam pipe when it rotates, maintain the rotation accuracy of the steam pipe, and make the steam pipe rotate smoothly. The sealing cover at the outer end of the rotating fixed seat plays a sealing and protective role to prevent raw materials from entering the slot.

[0019] In the activation tube structure of the multi-tube activation furnace, the driving gear is meshed with the driven gears on each steam tube for transmission, and the driving gear can synchronously drive each steam tube to rotate.

[0020] The rotation of the driving gear can synchronously drive the stirring plates on each steam pipe to stir, with high transmission accuracy and reliable transmission, which can ensure that the raw materials in each activation tube are activated under the same stirring action, and can ensure that the time required for the activation of the raw materials in each activation tube is similar, so that more uniform and higher quality activated carbon can be produced, further improving the activation efficiency and product quality.

[0021] In the activation tube structure of the above-mentioned multi-tube activation furnace, the cooling device includes a first collecting box, the upper end of the first collecting box is provided with a discharge pipe connected to the discharge port, the top of the first collecting box is also connected to an air suction pipe, the air suction pipe is connected to an air suction blower and a waste gas combustion chamber in turn, the waste gas combustion chamber is connected to a heat conduction pipe, the heat conduction pipe is connected to each activation tube through a plurality of heat conduction branches, and closing valves are respectively provided on the heat conduction pipe and the heat conduction branch pipe.

[0022] The activated carbon enters the first collecting box through the discharge pipe. The temperature of the activated carbon entering the first collecting box is relatively high and contains a variety of mixed exhaust gases. The suction blower can extract these high-temperature mixed exhaust gases into the exhaust gas combustion chamber for combustion through the suction pipe, thereby preliminarily reducing the temperature of the activated carbon. The large amount of heat generated by the combustion in the exhaust gas combustion chamber can be released into each activation tube by opening the closing valves on the heat transfer pipe and the heat transfer branch pipe, thereby reducing exhaust gas pollution and improving energy utilization efficiency.

[0023] In the activation tube structure of the above-mentioned multi-tube activation furnace, a cooling water tank is provided at the lower end of the first collecting box, a water inlet and a steam channel are provided at the top of the cooling water tank, the steam channel is connected to the air supply pipe of the external combustion boiler, a second collecting box is provided in the cooling water tank, a connecting pipe connected to the first collecting box is provided at the top of the second collecting box, a discharge channel sealably penetrated through the cooling water tank is provided at the bottom of the second collecting box, and a closing valve is provided on the steam channel.

[0024] The cooling water in the cooling water tank can absorb the heat of the activated carbon in the second collecting box, thereby water-cooling the activated carbon in the second collecting box, and the cooling effect is good. The cooling water in the cooling water tank absorbs the heat of the activated carbon to generate water vapor, and the water vapor enters the air supply pipe of the external combustion boiler through the steam channel.

[0025] Compared with the existing technology, the advantages of the present invention are: 1. The raw materials are constantly stirred in the activation tube to be in uniform and sufficient contact with water vapor, which can effectively improve the activation reaction efficiency of the raw materials, reduce the time required for activation, increase the output of activated carbon, and ensure the activation quality of activated carbon to improve the performance of activated carbon. 2. The raw materials are heated evenly in the activation tube to prevent local overheating or overcooling, thereby improving the activation efficiency and activation quality. 3. The cooling effect of activated carbon is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure provided by the present invention;

[0027] Figure 2 is a schematic cross-sectional view of an activation tube in an activation furnace body;

[0028] Figure 3 is a structural schematic diagram of a rotation drive structure;

[0029] Figure 4 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0030] Figure 5 yes Figure 1 The enlarged schematic diagram of point B in the middle;

[0031] Figure 6 It is a cross-sectional schematic diagram of the rotating fixed seat.

[0032] In the figure, an activation furnace body 1, an inclined support frame 2, a central combustion chamber 3, an activation tube 4, a raw material inlet 5, a raw material outlet 6, a steam stirring device 7, a sealing cover 8, a discharge chamber 9, a discharge port 10, a cooling device 11, a steam pipe 12, a stirring assembly 13, a steam hole group 14, a steam hole 15, a combustion boiler 16, an air supply pipe 17, a rotating drive structure 18, a stirring plate 19, a driven gear 20, a rotating driver 21, a driving gear 22, a rotating sealing structure 23, a rotating connection Structure 24, annular positioning step 25, first mounting groove 26, sealing bearing 27, rotating fixed seat 28, positioning frame 29, slot 30, rotating bearing 31, first collecting box 32, discharge pipe 33, suction pipe 34, suction blower 35, exhaust gas combustion chamber 36, heat pipe 37, heat branch pipe 38, closing valve 39, cooling water tank 40, water inlet 41, steam channel 42, second collecting box 43, connecting pipe 44, discharge channel 45, sealing cover 46. DETAILED DESCRIPTION

[0033] like Figure 1-Figure 3 As shown, an activation tube structure of a multi-tube activation furnace comprises an activation furnace body 1, which is inclined and has an inclined support frame 2 at the bottom end of the activation furnace body 1, a central combustion chamber 3 in the middle of the activation furnace body 1, and a plurality of activation tubes 4 evenly distributed along the circumference of the central combustion chamber 3 are also provided in the activation furnace body 1, a raw material inlet 5 connected to the outside is provided at one end of the activation tube 4, and a raw material outlet 6 is provided at the other end, a steam stirring device 7 is provided in the activation tube 4, sealing covers 8 are respectively provided at both ends of the activation furnace body 1, and the sealing covers 8 at both ends are respectively penetrated at both ends, and a discharge cavity 9 connected to each raw material outlet 6 is also provided at the end of the activation furnace body 1 near the raw material outlet 6, a discharge port 10 is provided at the bottom of the discharge cavity 9, and a cooling device 11 is connected to the discharge port 10.

[0034] In the present invention, the raw materials enter the activation tube 4 from the raw material inlet 5 of each activation tube 4 through the feeder. After the feeder finishes loading the materials, it is sealed between the raw material inlet 5 of each activation tube 4. The heat generated by the combustion in the central combustion chamber 3 in the middle of the activation furnace body 1 can heat the raw materials in the circumferentially arranged activation tubes 4. The steam stirring device 7 in the activation tube 4 can pass water vapor into the activation tube 4 and stir the raw materials. The water vapor and the raw materials are activated and reacted at high temperature to form activated carbon. Under the action of gravity, the activated carbon falls from the raw material outlet 6 along the inclined activation tube 4 into the discharge chamber 9, and enters the cooling device 11 through the discharge port 10 of the discharge chamber 9 for cooling.

[0035] The activation tubes 4 uniformly distributed circumferentially working simultaneously can realize large-scale and efficient activated carbon production, and can maximize the use of the heat generated by the combustion in the central combustion chamber 3, and can make each activation tube 4 heated evenly, providing a better activation site for the raw materials. The steam stirring device 7 in the activation tube 4 can continuously stir the raw materials while providing water vapor, so that the raw materials and water vapor can be in uniform and sufficient contact, thereby improving the activation reaction efficiency of the raw materials, reducing the time required for activation, increasing the output of activated carbon, and ensuring the activation quality of activated carbon to improve the performance of activated carbon. Stirring the raw materials can also make the raw materials evenly heated in the activation tube 4, prevent local overheating or overcooling, and improve the activation efficiency and activation quality.

[0036] Specifically, combined with Figure 1-Figure 5 As shown, the steam stirring device 7 includes a steam pipe 12 arranged at the center of the activation pipe 4 and distributed along the length direction of the activation pipe 4, a stirring assembly 13 is provided on the wall of the steam pipe 12, and a plurality of steam hole groups 14 uniformly distributed along the circumference of the steam pipe 12 are also provided on the wall of the steam pipe 12, each steam hole group 14 includes a plurality of steam holes 15 uniformly distributed along the length direction of the steam pipe 12, an air inlet end of the steam pipe 12 is rotatably connected to an air supply pipe 17 of an external combustion boiler 16, and the steam pipe 12 is connected to a rotating drive structure 18 capable of driving the steam pipe 12 to rotate.

[0037] The water vapor generated by the external combustion boiler 16 is transported to the steam pipe 12 through the air supply pipe 17, and enters the activation pipe 4 through the steam holes 15 evenly distributed on the steam pipe 12 to react with the raw materials for activation. The rotation drive structure 18 can drive the steam pipe 12 to rotate. The rotation of the steam pipe 12 can enable the stirring assembly 13 to operate to stir the raw materials in the activation pipe 4, so that the raw materials can be heated evenly and come into uniform and sufficient contact with the water vapor, thereby improving the activation efficiency and activation quality.

[0038] Specifically, combined with Figure 1 and Figure 2As shown, the stirring assembly 13 includes a plurality of stirring plates 19 arranged on the wall of the steam pipe 12 and distributed along the circumference of the steam pipe 12 and extending along the length direction of the steam pipe 12, and the above-mentioned steam hole groups 14 are arranged between adjacent stirring plates 19 in the circumferential direction.

[0039] The evenly distributed steam holes 15 are arranged between adjacent stirring plates 19. When the steam holes 15 output water vapor, the stirring plates 19 rotate along with the steam pipe 12 to stir the raw materials in the activation tube 4, ensuring that the raw materials can be evenly and fully contacted with the water vapor and the raw materials are evenly heated.

[0040] Specifically, combined with Figure 1 and Figure 3 As shown, the rotation driving structure 18 includes a driven gear 20 sleeved on the end of the steam pipe 12 extending out of the activation furnace body 1, a rotation driver 21 is provided on the outside of the activation furnace body 1, and the output end of the rotation driver 21 is sleeved with a driving gear 22 meshing with the driven gear 20 for transmission.

[0041] The rotary driver 21 runs, and the output end of the rotary driver 21 rotates to drive the driving gear 22 to rotate. Through the meshing transmission with the driven gear 20, the driving gear 22 rotates to synchronously drive the driven gear 20 to rotate, so as to synchronously drive the steam pipe 12 to rotate so that the stirring plate 19 on the steam pipe 12 follows the rotation to stir the raw materials in the activation tube 4. The meshing transmission between the driving gear 22 and the driven gear 20 has an accurate transmission ratio, high transmission accuracy, good transmission stability, and reliable transmission.

[0042] Specifically, combined with Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the air inlet end of the steam pipe 12 is rotationally connected to the air supply pipe 17 of the external combustion boiler 16 via a rotating sealing structure 23, and the head end of the steam pipe 12 extending into the activation pipe 4 is rotationally connected to the activation pipe 4 via a rotating connection structure 24.

[0043] The rotating sealing structure 23 between the air inlet end of the steam pipe 12 and the air supply pipe 17 plays the role of rotationally connecting the steam pipe 12 and the air supply pipe 17, which can reduce the friction and wear of the steam pipe 12 when rotating, maintain the rotation accuracy of the steam pipe 12, make the steam pipe 12 rotate smoothly, and play a sealing role to prevent water vapor from overflowing; the rotating connection structure 24 between the steam pipe 12 and the activation pipe 4 plays the role of positioning and fixing the head end of the steam pipe 12, and can reduce the friction and wear of the head end of the steam pipe 12 when rotating, maintain the rotation accuracy of the steam pipe 12, and make the steam pipe 12 rotate smoothly.

[0044] Specifically, combined with Figure 1 and Figure 4As shown, the rotating sealing structure 23 includes an annular positioning step 25 arranged in the end of the air supply pipe 17, the air inlet end of the steam pipe 12 extends into the air supply pipe 17 and abuts against the annular positioning step 25, and a first mounting groove 26 is formed between the inner side wall of the end of the air supply pipe 17 and the annular positioning step 25. A sealing bearing 27 is provided in the first mounting groove 26, and the inner and outer rings of the sealing bearing 27 abut against the outer pipe wall of the steam pipe 12 and the inner wall of the first mounting groove 26 respectively.

[0045] The annular positioning step 25 in the end of the air supply pipe 17 plays a positioning role for the air inlet end of the steam pipe 12. The sealed bearing 27 between the air supply pipe 17 and the steam pipe 12 can reduce the friction and wear of the steam pipe 12 during rotation, maintain the rotation accuracy of the steam pipe 12, and play a sealing role to prevent water vapor from overflowing.

[0046] Specifically, combined with Figure 1 , Figure 5 and Figure 6 As shown, the rotating connection structure 24 includes a rotating fixed seat 28, which is fixedly connected to the inner wall of the activation tube 4 through positioning frames 29 arranged on both sides. The rotating fixed seat 28 is provided with a slot 30 for inserting the steam pipe 12 at the end near the steam pipe 12. The head end of the steam pipe 12 is inserted into the slot 30. A rotating bearing 31 is provided between the steam pipe 12 and the slot 30. The inner and outer rings of the rotating bearing 31 are respectively abutted against the outer pipe wall of the steam pipe 12 and the inner pipe wall of the slot 30. A sealing cover 46 is provided at the outer end of the rotating fixed seat 28.

[0047] The slot 30 on the rotating fixed seat 28 plays a role in positioning and fixing the head end of the steam pipe 12. The rotating bearing 31 between the steam pipe 12 and the slot 30 can reduce the friction and wear of the head end of the steam pipe 12 when it rotates, maintain the rotation accuracy of the steam pipe 12, and make the steam pipe 12 rotate smoothly. The sealing cover 46 at the outer end of the rotating fixed seat 28 plays a sealing and protective role to prevent raw materials from entering the slot 30.

[0048] Preferably, combined Figure 1 and Figure 3 As shown, the driving gear 22 is meshed with the driven gear 20 on each steam pipe 12 for transmission, and the driving gear 22 can synchronously drive each steam pipe 12 to rotate.

[0049] The rotary driver 21 runs, and the driving gear 22 on the output end of the rotary driver 21 rotates. Through the meshing transmission with the driven gears 20 on each steam pipe 12, the rotation of the driving gear 22 can synchronously drive the stirring plates 19 on each steam pipe 12 to stir. The transmission has high precision and is reliable, which can ensure that the raw materials in each activation tube 4 are activated under the same stirring action, and can ensure that the time required for the activation of the raw materials in each activation tube 4 is similar, so that more uniform and higher quality activated carbon can be produced, and the activation efficiency and product quality can be further improved.

[0050] Specifically, combined with Figure 1 As shown, the cooling device 11 includes a first collecting box 32, and a discharge pipe 33 connected to the discharge port 10 is provided at the upper end of the first collecting box 32. A suction pipe 34 is also connected to the top of the first collecting box 32. The suction pipe 34 is connected to an air suction blower 35 and an exhaust gas combustion chamber 36 in sequence. A heat conduction pipe 37 is connected in the exhaust gas combustion chamber 36. The heat conduction pipe 37 is connected to each activation pipe 4 through a plurality of heat conduction branches 38. Closing valves 39 are respectively provided on the heat conduction pipe 37 and the heat conduction branch pipe 38.

[0051] The activated carbon enters the first collecting box 32 through the discharge pipe 33. The temperature of the activated carbon entering the first collecting box 32 is relatively high and contains a variety of mixed exhaust gases. The suction blower 35 can extract these high-temperature mixed exhaust gases through the suction pipe 34 to the exhaust gas combustion chamber 36 for combustion, thereby preliminarily reducing the temperature of the activated carbon. The large amount of heat generated by the combustion in the exhaust gas combustion chamber 36 is allowed to enter each activation tube 4 by opening the closing valve 39 on the heat transfer pipe 37 and the heat transfer branch pipe 38, thereby reducing exhaust gas pollution and improving energy utilization efficiency.

[0052] Preferably, combined Figure 1 As shown, a cooling water tank 40 is provided at the lower end of the first collecting box 32, a water inlet 41 and a steam channel 42 are provided at the top of the cooling water tank 40, the steam channel 42 is connected to the air supply pipe 17 of the external combustion boiler 16, a second collecting box 43 is provided in the cooling water tank 40, a connecting pipe 44 connected to the first collecting box 32 is provided at the top of the second collecting box 43, a discharge channel 45 sealed and penetrated through the cooling water tank 40 is provided at the bottom of the second collecting box 43, and a closing valve 39 is provided on the steam channel 42.

[0053] The activated carbon in the first collecting box 32 enters the second collecting box 43 through the connecting pipe 44. The cooling water in the cooling water tank 40 can absorb the heat of the activated carbon in the second collecting box 43, thereby water-cooling the activated carbon in the second collecting box 43, and the cooling effect is good. The cooling water in the cooling water tank 40 absorbs the heat of the activated carbon to generate water vapor, and the water vapor enters the air supply pipe 17 of the external combustion boiler 16 through the steam channel 42.

[0054] The working principle of the present invention is as follows: the raw material enters the activation tube 4 through the raw material inlet 5 of each activation tube 4 through the feeder, the heat generated by the combustion in the central combustion chamber 3 in the middle of the activation furnace body 1 can heat the raw material in each activation tube 4 arranged circumferentially, the water vapor generated by the external combustion boiler 16 is transported to the steam pipe 12 through the air supply pipe 17, and enters the activation tube 4 through the steam holes 15 evenly distributed on the steam pipe 12 to perform activation reaction with the raw material;

[0055] The rotary driver 21 is running, and the output end of the rotary driver 21 rotates to drive the driving gear 22 to rotate and synchronously drive the driven gear 20 to rotate, so that the stirring plate 19 on the steam pipe 12 rotates along with the steam pipe 12 to stir the raw materials in the activation pipe 4, so that the raw materials can be evenly and fully contacted with the water vapor and activated at high temperature to form activated carbon. Under the action of gravity, the activated carbon falls from the raw material outlet 6 along the inclined activation pipe 4 into the discharge chamber 9, and enters the first collection box 32 through the discharge port 10 of the discharge chamber 9;

[0056] The suction blower 35 operates through the suction duct 34 to extract the high-temperature mixed exhaust gas from the first collecting box 32 to the exhaust gas combustion chamber 36 for combustion, so as to preliminarily reduce the temperature of the activated carbon. By opening the closing valve 39 on the heat transfer pipe 37 and the heat transfer branch pipe 38, a large amount of heat generated by the combustion in the exhaust gas combustion chamber 36 enters into each activation tube 4; the activated carbon in the first collecting box 32 enters into the second collecting box 43 through the connecting pipe 44, and the cooling water in the cooling water tank 40 can absorb the heat of the activated carbon in the second collecting box 43, thereby water-cooling the activated carbon in the second collecting box 43.

[0057] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0058] Although this article uses more activation furnace body 1, inclined support frame 2, central combustion chamber 3, activation tube 4, raw material inlet 5, raw material outlet 6, steam stirring device 7, cover 8, discharge cavity 9, discharge port 10, cooling device 11, steam pipe 12, stirring assembly 13, steam hole group 14, steam hole 15, combustion boiler 16, air supply pipe 17, rotation drive structure 18, stirring plate 19, driven gear 20, rotation driver 21, driving gear 22, rotation sealing structure 23, rotation connection structure 24, annular positioning step 25, first installation groove 26, sealing shaft Bearing 27, rotating fixed seat 28, positioning frame 29, slot 30, rotating bearing 31, first collecting box 32, discharge pipe 33, suction pipe 34, suction blower 35, exhaust gas combustion chamber 36, heat pipe 37, heat branch pipe 38, closing valve 39, cooling water tank 40, water inlet 41, steam channel 42, second collecting box 43, connecting pipe 44, discharge channel 45, sealing cover 46, etc., these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. An activation tube structure of a multi-tube activation furnace, comprising an activation furnace body (1), characterized in that: The activation furnace body (1) is tilted, and an inclined support frame (2) is provided at the bottom end of the activation furnace body (1). A central combustion chamber (3) is provided in the middle of the activation furnace body (1). A plurality of activation tubes (4) are evenly distributed along the circumference of the central combustion chamber (3) are also provided in the activation furnace body (1). One end of the activation tube (4) is provided with a raw material inlet (5) connected to the outside, and the other end is provided with a raw material outlet (6). A steam stirring device (7) is provided in the activation tube (4). Both ends of the activation furnace body (1) are respectively provided with sealing covers (8). Both ends of the activation tube (4) are respectively penetrated by the sealing covers (8) at both ends. The end of the activation furnace body (1) near the raw material outlet (6) is also provided with a discharge cavity (9) connected to each raw material outlet (6). The bottom of the discharge cavity (9) is provided with a discharge port (10), and the discharge port (10) is connected to a cooling device (11).

2. The activation tube structure of the multi-tube activation furnace according to claim 1, characterized in that: The steam stirring device (7) comprises a steam pipe (12) arranged at the center of the activation pipe (4) and distributed along the length direction of the activation pipe (4); a stirring assembly (13) is provided on the wall of the steam pipe (12); a plurality of steam hole groups (14) are also provided on the wall of the steam pipe (12) and are evenly distributed along the circumference of the steam pipe (12); each group of the steam hole groups (14) comprises a plurality of steam holes (15) evenly distributed along the length direction of the steam pipe (12); an air inlet end of the steam pipe (12) is rotatably connected to an air supply pipe (17) of an external combustion boiler (16); and the steam pipe (12) is connected to a rotation driving structure (18) capable of driving the steam pipe (12) to rotate.

3. The activation tube structure of the multi-tube activation furnace according to claim 2, characterized in that: The stirring assembly (13) comprises a plurality of stirring plates (19) arranged on the wall of the steam pipe (12), distributed along the circumference of the steam pipe (12) and extending along the length direction of the steam pipe (12), and the steam hole group (14) is arranged between the stirring plates (19) adjacent to each other in the circumferential direction.

4. The activation tube structure of the multi-tube activation furnace according to claim 3, characterized in that: The rotary drive structure (18) comprises a driven gear (20) sleeved on the end of the steam pipe (12) extending out of the activation furnace body (1), a rotary drive (21) is provided on the outside of the activation furnace body (1), and an output end of the rotary drive (21) is sleeved with a driving gear (22) meshing with the driven gear (20).

5. The activation tube structure of the multi-tube activation furnace according to claim 2, characterized in that: The air inlet end of the steam pipe (12) is rotationally connected to the air supply pipe (17) of the external combustion boiler (16) via a rotating sealing structure (23), and the head end of the steam pipe (12) extending into the activation pipe (4) is rotationally connected to the activation pipe (4) via a rotating connection structure (24).

6. The activation tube structure of the multi-tube activation furnace according to claim 5, characterized in that: The rotary sealing structure (23) comprises an annular positioning step (25) arranged in the end of the air supply pipe (17); the air inlet end of the steam pipe (12) extends into the air supply pipe (17) and abuts against the annular positioning step (25); a first mounting groove (26) is formed between the inner side wall of the end of the air supply pipe (17) and the annular positioning step (25); a sealing bearing (27) is arranged in the first mounting groove (26); the inner and outer rings of the sealing bearing (27) abut against the outer wall of the steam pipe (12) and the inner wall of the first mounting groove (26), respectively.

7. The activation tube structure of the multi-tube activation furnace according to claim 5, characterized in that: The rotating connection structure (24) comprises a rotating fixed seat (28), the rotating fixed seat (28) being fixedly connected to the inner wall of the activation tube (4) via positioning frames (29) arranged on both sides, the rotating fixed seat (28) being provided with a slot (30) for inserting the steam pipe (12) at the end near the steam pipe (12), the head end of the steam pipe (12) being inserted into the slot (30), a rotating bearing (31) being provided between the steam pipe (12) and the slot (30), the inner and outer rings of the rotating bearing (31) respectively abutting against the outer pipe wall of the steam pipe (12) and the inner pipe wall of the slot (30), and a sealing cover (46) being provided at the outer end of the rotating fixed seat (28).

8. The activation tube structure of the multi-tube activation furnace according to claim 4, characterized in that: The driving gear (22) is meshed with the driven gear (20) on each steam pipe (12) for transmission, and the driving gear (22) can synchronously drive each steam pipe (12) to rotate.

9. The activation tube structure of the multi-tube activation furnace according to any one of claims 2 to 8, characterized in that: The cooling device (11) comprises a first collecting box (32), the upper end of which is provided with a discharge pipe (33) connected to the discharge port (10), the top of which is also connected with an air suction pipe (34), the air suction pipe (34) is connected in sequence with an air suction blower (35) and an exhaust gas combustion chamber (36), the exhaust gas combustion chamber (36) is connected with a heat conduction pipe (37), the heat conduction pipe (37) is connected with each activation pipe (4) through a plurality of heat conduction branch pipes (38), and the heat conduction pipe (37) and the heat conduction branch pipe (38) are respectively provided with closing valves (39).

10. The activation tube structure of the multi-tube activation furnace according to claim 9, characterized in that: A cooling water tank (40) is provided at the lower end of the first collecting box (32), a water inlet (41) and a steam channel (42) are provided at the top of the cooling water tank (40), the steam channel (42) is connected to the air supply pipe (17) of the external combustion boiler (16), a second collecting box (43) is provided in the cooling water tank (40), a connecting pipe (44) connected to the first collecting box (32) is provided at the top of the second collecting box (43), a discharge channel (45) sealed and penetrated through the cooling water tank (40) is provided at the bottom of the second collecting box (43), and a closing valve (39) is provided on the steam channel (42).

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