Steam heating device of multi-tube activation furnace

Abstract

The invention provides a steam heating device of a multi-tube activation furnace, and belongs to the technical field of activation furnaces. The activation furnace comprises an inclined activation furnace body and an inclined support, sealing walls are arranged on the two sides of the activation furnace body respectively, a plurality of activation pipes evenly distributed in the circumferential direction of the axis of the activation furnace body are arranged in the activation furnace body, heat preservation layers are arranged on the inner pipe walls of the activation pipes, and the two ends of each activation pipe penetrate through the sealing walls on the two sides respectively and are rotationally connected with the sealing walls. An activation pipe rotating assembly is arranged in the activation furnace body, a raw material inlet communicated with the outside is formed in one end of the activation pipe, a raw material outlet is formed in the other end of the activation pipe, and a discharging cavity communicated with the raw material outlet is further formed in the end, close to the raw material outlet, of the activation furnace body. High-temperature steam pipelines distributed in the length direction of the activation pipe are arranged in the center of the activation pipe, high-temperature steam hole structures are arranged on the high-temperature steam pipelines, a boiler heating assembly is arranged below the activation furnace body, and the steam outlet end in the boiler heating assembly is connected with the steam inlet ends of the high-temperature steam pipelines.

Description

Technical Field

[0001] The invention belongs to the technical field of activation furnaces and relates to a steam heating device for 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. The physical activation method of activated carbon is to contact the raw materials with activation gases such as water vapor or CO2 at high temperature to perform an activation reaction. At present, in order to improve the production efficiency of the activation furnace, multiple activation tubes are usually designed around the central combustion chamber of the activation furnace. However, the temperature of the activation tube close to the central combustion chamber is much higher than the temperature of the activation tube far from the central combustion chamber, which will cause uneven heating of the raw materials in the activation tube, resulting in problems of local over-activation or under-activation, and the raw materials also have problems of uneven and insufficient contact with activation gases such as water vapor. Summary of the invention

[0003] The object of the present invention is to provide a steam heating device for 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] A steam heating device for a multi-tube activation furnace comprises an activation furnace body arranged obliquely and an inclined bracket arranged at the bottom end of the activation furnace body, sealing walls are respectively arranged on both sides of the activation furnace body, a plurality of activation tubes uniformly distributed along the circumferential direction of the activation furnace body axis are arranged in the activation furnace body, an inner tube wall of the activation tube is provided with a heat preservation layer, two ends of the activation tube are respectively penetrated through the sealing walls on both sides and are rotatably connected between the sealing walls, an activation tube rotating assembly is arranged in the activation furnace body, one end of the activation tube is provided with a raw material inlet connected to the outside, and the other end is provided with a raw material outlet, 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, a high-temperature steam pipeline distributed along the length direction of the activation tube is provided in the center of the activation tube, a high-temperature steam hole structure is provided on the high-temperature steam pipeline, a boiler heating assembly is provided below the activation furnace body, and the steam outlet end in the boiler heating assembly is connected to the steam inlet end of each high-temperature steam pipeline.

[0006] The activation tubes evenly distributed around the periphery can work simultaneously to realize large-scale and efficient activated carbon production. The boiler heating component can generate high-temperature water vapor. The high-temperature steam pipeline is arranged at the center of the activation tube. The high-temperature water vapor entering the activation tube through the high-temperature steam hole structure can rapidly heat the activation tube to a high-temperature environment and ensure uniform temperature in the activation tube so that the raw materials are heated evenly. The high-temperature steam hole structure can make the high-temperature water vapor fully contact with the raw materials. The insulation layer of the tube wall inside the activation tube plays a role of insulation. The activation tube rotating component can drive the activation tube to rotate continuously so that the raw materials rotate and are in uniform and sufficient contact with the water vapor, avoiding the problem of local over-activation or insufficient activation, ensuring that the raw materials are heated evenly, improving the activation efficiency, and preventing the raw materials from being in a static state for a long time, causing agglomeration and agglomeration.

[0007] In the steam heating device of the above-mentioned multi-tube activation furnace, the boiler heating assembly includes a closed heating chamber, a high-pressure boiler is arranged in the closed heating chamber, a heating chamber is formed between the closed heating chamber and the high-pressure boiler, the bottom end of the high-pressure boiler is connected to the bottom end of the closed heating chamber through elevated legs, a combustion chamber is arranged on one side of the closed heating chamber, the combustion chamber is connected to the heating chamber through a heat transfer pipe, the upper end of the high-pressure boiler is provided with a water injection port and a steam main pipe which are sealed and penetrated through the upper end of the closed heating chamber, the steam main pipe is respectively connected to the steam inlet end of each high-temperature steam pipe through a plurality of steam branch pipes, and a sealed connection structure is provided between the steam branch pipe and the corresponding high-temperature steam pipe.

[0008] The heat generated by the combustion of fuel in the combustion chamber enters the heating cavity of the closed heating chamber through the heat transfer pipe to heat the high-pressure boiler. The high-temperature water vapor generated by the heating of the high-pressure boiler enters the high-temperature steam pipes through the steam main pipe. The high-pressure boiler is elevated by the elevated legs at the bottom to ensure that the high-pressure boiler is fully heated. The sealed connection structure between the steam branch pipe and the high-temperature steam pipe plays a sealing connection role.

[0009] In the steam heating device of the above-mentioned multi-tube activation furnace, a closed cooling water tank is also provided under the activation furnace body, a cooling box is provided inside the closed cooling water tank, a discharge pipe and an exhaust pipe which are sealed and penetrated through the upper end of the closed cooling water tank are provided on the top of the cooling box, the discharge pipe is connected to the discharge port, the exhaust pipe is connected to the combustion chamber through the induced draft fan, a discharge channel which is sealed and penetrated through the closed cooling water tank is provided at the bottom of the cooling box, a discharge valve is provided on the discharge channel, a water inlet and a steam channel connected to the steam main pipe are provided on the top of the closed cooling water tank, and a closing valve is provided on the steam channel.

[0010] The activated carbon entering the cooling box has a high temperature and contains a variety of mixed exhaust gases. The induced draft fan can extract these high-temperature mixed exhaust gases into the combustion chamber through the exhaust duct for combustion, so as to reduce the temperature of the activated carbon, reduce exhaust gas pollution and improve energy utilization efficiency. The cooling water in the closed cooling water tank can absorb the heat of the activated carbon in the cooling box, thereby water-cooling the activated carbon in the cooling box, and the cooling effect is good.

[0011] In the steam heating device of the above-mentioned multi-tube activation furnace, the outer tube wall of the high-temperature steam pipe is adapted to the inner tube wall of the steam branch pipe, the sealing connection structure includes an annular positioning step arranged on the inner wall of the steam branch pipe, the steam inlet end of the high-temperature steam pipe is inserted into the steam branch pipe and abuts against the annular positioning step, an annular mounting groove is provided on the inner tube wall of the steam branch pipe at the pipe mouth, a sealing ring is provided between the annular mounting groove and the high-temperature steam pipe, the inner and outer rings of the sealing ring are tightly abutted against the outer tube wall of the high-temperature steam pipe and the inner tube wall of the steam branch pipe respectively, and a steam sealing cover is also provided at the outer end of the steam branch pipe.

[0012] The annular positioning step on the inner wall of the steam branch pipe plays a positioning role for the steam inlet end of the high-temperature steam pipe. The sealing ring plays a role in sealing and connecting the high-temperature steam pipe and the steam branch pipe. The connection is stable and the sealing is good. The steam sealing cover at the outer end of the steam branch pipe plays a role in further strengthening the sealing effect.

[0013] In the steam heating device of the above-mentioned multi-tube activation furnace, the activation tube rotating assembly includes a transmission gear sleeved on the activation tube, a fixed bracket is provided on the outside of the activation furnace body, a rotation driver is provided on the fixed bracket, the output end of the rotation driver is passed through the sealing wall, and a driving gear meshing with the transmission gears on each activation tube is sleeved on the output end of the rotation driver, and the driving gear can synchronously drive each activation tube to rotate.

[0014] The rotation of the driving gear can synchronously drive the activation tubes to rotate, with high transmission accuracy and reliable transmission, so that the raw materials are heated evenly and in uniform and sufficient contact with the water vapor, and it is ensured that the raw materials in each activation tube are activated under the same rotation reaction, and the time required for activation of the raw materials in each activation tube is ensured to be the same, so that more uniform and higher quality activated carbon can be produced, further improving the activation efficiency and product quality.

[0015] In the steam heating device of the above-mentioned multi-tube activation furnace, the high-temperature steam hole structure includes a plurality of steam hole groups arranged on the wall of the high-temperature steam pipe and evenly distributed along the circumference of the high-temperature steam pipe. Each group of the steam hole groups includes a plurality of vertical steam holes evenly distributed along the length direction of the high-temperature steam pipe. Inclined steam holes inclined toward the raw material inlet are provided between the vertical steam holes.

[0016] The vertical steam holes and inclined steam holes on the high-temperature steam pipe are evenly distributed, so that the high-temperature water vapor entering the activation tube through the vertical steam holes and the inclined steam holes can be in uniform and sufficient contact with the raw materials, ensuring the activation efficiency. The inclined steam holes are inclined toward the raw material inlet. During the process of the raw materials entering from the raw material inlet moving obliquely downward, the high-temperature water vapor discharged from the inclined steam holes can further increase the contact area with the inclined downward raw materials, so as to improve the activation quality.

[0017] In the steam heating device of the multi-tube activation furnace, a rotating groove adapted to the activation tube is provided on the sealing wall, a rotating bearing is provided between the rotating groove and the activation tube, and a heat preservation cover is provided at the outer end of the rotating groove.

[0018] The rotary bearing between the rotating groove on the sealing wall and the activation tube plays a role in supporting the rotation of the activation tube and can reduce the friction coefficient and the friction force on the activation tube when it rotates. The heat preservation cover at the outer end of the rotating groove plays a role in heat preservation.

[0019] In the steam heating device of the multi-tube activation furnace, the high-temperature steam pipeline extends into the activation tube and is connected to the activation tube at both ends thereof through a first rotation positioning assembly and a second rotation positioning assembly, respectively.

[0020] The first rotational positioning assembly and the second rotational positioning assembly respectively play a role in positioning and fixing the two ends of the high-temperature steam pipe extending into the activation pipe. The high-temperature steam pipe is firmly fixed, and the high-temperature steam pipe and the activation pipe are rotationally connected, which can ensure that the high-temperature steam pipe remains stationary during the rotation of the activation pipe.

[0021] In the steam heating device of the above-mentioned multi-tube activation furnace, the first rotating positioning assembly includes a first positioning seat fixedly connected to the inner tube wall of the activation tube through a connecting frame, the first positioning seat is provided with a slot for inserting a high-temperature steam pipe, a first rotating bearing is provided between the high-temperature steam pipe and the slot, the inner and outer rings of the first rotating bearing are respectively abutted against the outer tube wall of the high-temperature steam pipe and the inner groove surface of the slot, and a first sealing cover is provided at the outer end of the first positioning seat.

[0022] The slot on the first positioning seat plays a role in positioning and fixing the head end of the high-temperature steam pipe. When the first positioning seat rotates with the activation tube, the first rotating bearing between the high-temperature steam pipe and the slot plays a role in rotatingly connecting the first positioning seat and the high-temperature steam pipe, so that the high-temperature steam pipe always remains stationary and can reduce the friction and wear between the first positioning seat and the high-temperature steam pipe when rotating. The first sealing cover at the outer end of the first positioning seat plays a sealing and protective role to prevent raw materials from entering the slot.

[0023] In the steam heating device of the above-mentioned multi-tube activation furnace, the second rotating positioning assembly includes a second positioning seat fixedly connected to the inner tube wall of the activation tube through a connecting frame, and the second positioning seat is penetrated by a through groove for the high-temperature steam pipe to pass through, and a second rotating bearing is provided between the through groove and the high-temperature steam pipe, and the inner and outer rings of the second rotating bearing are respectively abutted against the outer tube wall of the high-temperature steam pipe and the inner groove surface of the through groove, and second sealing covers are respectively provided at both ends of the second positioning seat.

[0024] The through groove on the second positioning seat plays a role in positioning and fixing the end of the high-temperature steam pipe. When the second positioning seat rotates with the activation tube, the second rotating bearing between the high-temperature steam pipe and the through groove plays a role in rotatingly connecting the second positioning seat and the high-temperature steam pipe, so that the high-temperature steam pipe always remains stationary and can reduce the friction and wear between the second positioning seat and the high-temperature steam pipe when rotating. The second sealing covers at both ends of the second positioning seat play a sealing and protective role to prevent raw materials from entering the through groove.

[0025] Compared with the existing technology, the advantages of the present invention are: 1. The temperature in the activation tube is uniform, ensuring that the raw materials are heated evenly during the activation process, thereby improving the activation quality. 2. The raw materials can be in uniform and sufficient contact with the water vapor, avoiding the problem of local over-activation or under-activation, and the raw materials will not agglomerate and agglomerate. 3. It can reduce waste gas pollution and improve energy utilization efficiency. 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 It is a schematic diagram of the structure of the activation tube rotating assembly;

[0028] Figure 3 yes Figure 1 The enlarged schematic diagram of point A in the middle;

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

[0030] Figure 5 yes Figure 1 The enlarged schematic diagram of the center C;

[0031] Figure 6 is a cross-sectional view of the second rotation positioning assembly.

[0032] In the figure, an activation furnace body 1, an inclined bracket 2, a sealing wall 3, an activation tube 4, an activation tube rotating assembly 5, a raw material inlet 6, a raw material outlet 7, a discharge chamber 8, a discharge port 9, a high-temperature steam pipeline 10, a high-temperature steam hole structure 11, a boiler heating assembly 12, a closed heating chamber 13, a high-pressure boiler 14, a heating chamber 15, an elevated support leg 16, a combustion chamber 17, a heat transfer pipeline 18, a water injection port 19, a steam main pipe 20, a steam branch pipe 21, a sealed connection structure 22, a closed cooling water tank 23, a cooling tank 24, a discharge pipe 25, an exhaust pipe 26, an induced draft fan 27, a discharge channel 28, and a water inlet 29, steam channel 30, annular positioning step 31, annular mounting groove 32, sealing ring 33, steam sealing cover 34, transmission gear 35, fixed bracket 36, rotation driver 37, driving gear 38, steam hole group 39, vertical steam hole 40, inclined steam hole 41, rotating groove 42, rotating bearing 43, thermal insulation cover 44, first rotating positioning assembly 45, second rotating positioning assembly 46, connecting frame 47, first positioning seat 48, slot 49, first rotating bearing 50, first sealing cover 51, second positioning seat 52, through groove 53, second rotating bearing 54, second sealing cover 55. DETAILED DESCRIPTION

[0033] like Figure 1-Figure 3 As shown, a steam heating device of a multi-tube activation furnace comprises an activation furnace body 1 arranged obliquely and an inclined bracket 2 arranged at the bottom end of the activation furnace body 1, sealing walls 3 are respectively arranged on both sides of the activation furnace body 1, a plurality of activation tubes 4 uniformly distributed circumferentially along the axis of the activation furnace body 1 are arranged in the activation furnace body 1, the inner tube wall of the activation tube 4 is provided with a heat preservation layer, both ends of the activation tube 4 are respectively penetrated by the sealing walls 3 on both sides and are rotatably connected with the sealing walls 3, an activation tube rotating assembly 5 is arranged in the activation furnace body 1, one end of the activation tube 4 is provided with a raw material inlet 6 connected to the outside, and the other end is provided with a raw material outlet 7, the end of the activation furnace body 1 near the raw material outlet 7 is also provided with a discharge cavity 8 connected with each raw material outlet 7, a discharge port 9 is provided at the bottom of the discharge cavity 8, a high-temperature steam pipeline 10 distributed along the length direction of the activation tube 4 is provided in the center of the activation tube 4, a high-temperature steam hole structure 11 is provided on the high-temperature steam pipeline 10, a boiler heating assembly 12 is provided below the activation furnace body 1, and the steam outlet end in the boiler heating assembly 12 is connected to the steam inlet end of each high-temperature steam pipeline 10.

[0034] In the present invention, the high-temperature water vapor generated by the operation of the boiler heating component 12 enters each high-temperature steam pipe 10 from the steam outlet end, and the high-temperature water vapor in the high-temperature steam pipe 10 enters the activation tube 4 through the high-temperature steam hole structure 11, so that the activation tube 4 is rapidly heated to a high-temperature environment. The raw materials enter the activation tube 4 from the raw material inlet 6 of each activation tube 4 through the feeder. After the feeder is loaded, it is sealed with the raw material inlet 6 of each activation tube 4. The activation tube rotating component 5 drives the activation tube 4 to rotate continuously. The raw materials react with water vapor under high-temperature environment to form activated carbon. Under the action of gravity, the activated carbon falls from the raw material outlet 7 along the inclined activation tube 4 into the discharge chamber 8 and is discharged from the discharge port 9.

[0035] The activation tubes 4 uniformly distributed circumferentially can work simultaneously to achieve large-scale and high-efficiency activated carbon production. The boiler heating component 12 can generate high-temperature water vapor. The high-temperature steam pipe 10 is arranged at the center of the activation tube 4. The high-temperature water vapor entering the activation tube 4 through the high-temperature steam hole structure 11 can rapidly heat the activation tube 4 to a high-temperature environment, and can ensure that the temperature in the activation tube 4 is uniform, so that the raw material is heated evenly. The high-temperature steam hole structure 11 can make the high-temperature water vapor fully contact with the raw material, and the insulation layer of the inner tube wall of the activation tube 4 plays a role of insulation. During the activation reaction of the raw material and the high-temperature water vapor, the activation tube rotating component 5 can drive the activation tube 4 to rotate continuously, so that the raw material rotates and contacts the water vapor evenly and fully, avoiding the problem of local over-activation or insufficient activation, and ensuring that the raw material is heated evenly, improving the activation efficiency, and preventing the raw material from being in a static state for a long time, causing agglomeration and agglomeration.

[0036] Specifically, combined with Figure 1 As shown, the boiler heating assembly 12 includes a closed heating chamber 13, in which a high-pressure boiler 14 is arranged, and a heating cavity 15 is formed between the closed heating chamber 13 and the high-pressure boiler 14. The bottom end of the high-pressure boiler 14 is connected to the bottom end of the closed heating chamber 13 through an elevated support leg 16. A combustion chamber 17 is arranged on one side of the closed heating chamber 13, and the combustion chamber 17 is connected to the heating cavity 15 through a heat transfer pipe 18. The upper end of the high-pressure boiler 14 is provided with a water injection port 19 and a steam main pipe 20 which are sealed and penetrated through the upper end of the closed heating chamber 13. The steam main pipe 20 is respectively connected to the steam inlet end of each high-temperature steam pipe 10 through a plurality of steam branch pipes 21, and a sealed connection structure 22 is provided between the steam branch pipe 21 and the corresponding high-temperature steam pipe 10.

[0037] The heat generated by the combustion of fuel in the combustion chamber 17 enters the heating cavity 15 of the closed heating chamber 13 through the heat transfer pipe 18 to heat the high-pressure boiler 14. The high-temperature water vapor generated by the heating of the high-pressure boiler 14 enters each high-temperature steam pipe 10 through the steam main pipe 20. The high-pressure boiler 14 is elevated by the elevated legs 16 at the bottom to ensure that the high-pressure boiler 14 is fully heated. The sealing connection structure 22 between the steam branch pipe 21 and the high-temperature steam pipe 10 plays a sealing connection role.

[0038] Specifically, combined with Figure 1 As shown, a closed cooling water tank 23 is further provided below the activation furnace body 1, a cooling box 24 is provided inside the closed cooling water tank 23, a discharge pipe 25 and an exhaust pipe 26 which are sealed and penetrated through the upper end of the closed cooling water tank 23 are provided at the top of the cooling box 24, the discharge pipe 25 is connected to the discharge port 9, the exhaust pipe 26 is connected to the combustion chamber 17 through the induced draft fan 27, a discharge channel 28 which is sealed and penetrated through the closed cooling water tank 23 is provided at the bottom of the cooling box 24, a discharge valve is provided on the discharge channel 28, a water inlet 29 and a steam channel 30 which is connected to the steam main pipe 20 are provided at the top of the closed cooling water tank 23, and a closing valve is provided on the steam channel 30.

[0039] The activated carbon enters the cooling box 24 through the discharge pipe 25. The temperature of the activated carbon entering the cooling box 24 is relatively high and contains a variety of mixed exhaust gases. The induced draft fan 27 can extract these high-temperature mixed exhaust gases through the exhaust pipe 26 to the combustion chamber 17 for combustion, so as to reduce the temperature of the activated carbon, reduce exhaust gas pollution and improve energy utilization efficiency. The cooling water in the closed cooling water tank 23 can absorb the heat of the activated carbon in the cooling box 24, thereby water-cooling the activated carbon in the cooling box 24, and the cooling effect is good. The cooling water in the closed cooling water tank 23 absorbs the heat of the activated carbon to generate water vapor, and the water vapor enters the steam main pipe 20 through the steam channel 30.

[0040] Specifically, combined with Figure 1 As shown, the outer tube wall of the high-temperature steam pipe 10 is adapted to the inner tube wall of the steam branch pipe 21, the sealing connection structure 22 includes an annular positioning step 31 arranged on the inner wall of the steam branch pipe 21, the steam inlet end of the high-temperature steam pipe 10 is inserted into the steam branch pipe 21 and abuts against the annular positioning step 31, an annular mounting groove 32 is provided on the inner tube wall of the steam branch pipe 21 at the pipe mouth, a sealing ring 33 is provided between the annular mounting groove 32 and the high-temperature steam pipe 10, the inner and outer circles of the sealing ring 33 are tightly abutted against the outer tube wall of the high-temperature steam pipe 10 and the inner tube wall of the steam branch pipe 21 respectively, and a steam sealing cover 34 is also provided at the outer end of the steam branch pipe 21.

[0041] The annular positioning step 31 on the inner wall of the steam branch pipe 21 plays a positioning role for the steam inlet end of the high-temperature steam pipe 10, and the sealing ring 33 plays a role in sealing and connecting the high-temperature steam pipe 10 and the steam branch pipe 21. The connection is stable and the sealing is good. The steam sealing cover 34 at the outer end of the steam branch pipe 21 plays a role in further strengthening the sealing effect.

[0042] Specifically, combined with Figure 1 and Figure 2 As shown, the activation tube rotating assembly 5 includes a transmission gear 35 sleeved on the activation tube 4, a fixed bracket 36 is provided on the outer side of the activation furnace body 1, a rotation driver 37 is provided on the fixed bracket 36, the output end of the rotation driver 37 is passed through the sealing wall 3, and a driving gear 38 meshing with the transmission gear 35 on each activation tube 4 is sleeved on the output end of the rotation driver 37, and the driving gear 38 can synchronously drive each activation tube 4 to rotate.

[0043] The rotary driver 37 runs, and the driving gear 38 on the output end of the rotary driver 37 rotates. Through the meshing transmission with the transmission gears 35 on each activation tube 4, the rotation of the driving gear 38 can synchronously drive each activation tube 4 to rotate. The transmission has high precision and is reliable, so that the raw materials are heated evenly and come into uniform and sufficient contact with the water vapor, and it is ensured that the raw materials in each activation tube 4 are activated under the same rotation. It is ensured that the time required for the activation of the raw materials in each activation tube 4 is close to the same, so that more uniform and higher quality activated carbon can be produced, and the activation efficiency and product quality can be further improved.

[0044] Specifically, combined with Figure 1 and Figure 3 As shown, the high-temperature steam hole structure 11 includes a plurality of steam hole groups 39 arranged on the wall of the high-temperature steam pipe 10 and evenly distributed along the circumference of the high-temperature steam pipe 10. Each steam hole group 39 includes a plurality of vertical steam holes 40 evenly distributed along the length direction of the high-temperature steam pipe 10. Inclined steam holes 41 inclined toward the raw material inlet 6 are arranged between the vertical steam holes 40.

[0045] The vertical steam holes 40 and the inclined steam holes 41 on the high-temperature steam pipe 10 are evenly distributed, so that the high-temperature water vapor entering the activation tube 4 through the vertical steam holes 40 and the inclined steam holes 41 can be in uniform and sufficient contact with the raw materials, thereby ensuring the activation efficiency. The inclined steam holes 41 are inclined toward the raw material inlet 6. During the process of the raw materials entering from the raw material inlet 6 moving obliquely downward, the high-temperature water vapor discharged from the inclined steam holes 41 can further increase the contact area with the inclined downwardly moving raw materials, thereby improving the activation quality.

[0046] Specifically, combined with Figure 1As shown, a rotating groove 42 adapted to the activation tube 4 is provided on the sealing wall 3 , a rotating bearing 43 is provided between the rotating groove 42 and the activation tube 4 , and a heat preservation cover 44 is provided at the outer end of the rotating groove 42 .

[0047] The rotating bearing 43 between the rotating groove 42 on the sealing wall 3 and the activation tube 4 plays a role in supporting the rotation of the activation tube 4, and can reduce the friction coefficient and reduce the friction force on the activation tube 4 when it rotates. The heat preservation cover 44 at the outer end of the rotating groove 42 plays a heat preservation role.

[0048] Specifically, combined with Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the high-temperature steam pipe 10 extends into the activation pipe 4 and is connected to the activation pipe 4 at both ends thereof through a first rotation positioning assembly 45 and a second rotation positioning assembly 46 respectively.

[0049] The first rotation positioning assembly 45 and the second rotation positioning assembly 46 respectively play a role in positioning and fixing the two ends of the high-temperature steam pipe 10 extending into the activation pipe 4. The high-temperature steam pipe 10 is firmly fixed, and the high-temperature steam pipe 10 is rotationally connected to the activation pipe 4, which can ensure that the high-temperature steam pipe 10 remains stationary during the rotation of the activation pipe 4.

[0050] Specifically, combined with Figure 1 and Figure 4 As shown, the first rotation positioning assembly 45 includes a first positioning seat 48 fixedly connected to the inner tube wall of the activation tube 4 through a connecting frame 47, and a slot 49 is provided on the first positioning seat 48 for inserting the high-temperature steam pipe 10, and a first rotating bearing 50 is provided between the high-temperature steam pipe 10 and the slot 49, and the inner and outer rings of the first rotating bearing 50 are respectively abutted against the outer tube wall of the high-temperature steam pipe 10 and the inner groove surface of the slot 49, and a first sealing cover 51 is provided at the outer end of the first positioning seat 48.

[0051] The slot 49 on the first positioning seat 48 plays a role in positioning and fixing the head end of the high-temperature steam pipe 10. When the first positioning seat 48 rotates following the activation tube 4, the first rotating bearing 50 between the high-temperature steam pipe 10 and the slot 49 plays a role in rotatingly connecting the first positioning seat 48 and the high-temperature steam pipe 10, so that the high-temperature steam pipe 10 always remains in a stationary state and can reduce the friction and wear between the first positioning seat 48 and the high-temperature steam pipe 10 when rotating. The first sealing cover 51 at the outer end of the first positioning seat 48 plays a sealing and protective role to prevent raw materials from entering the slot 49.

[0052] Specifically, combined with Figure 1 , Figure 5 and Figure 6As shown, the second rotation positioning assembly 46 includes a second positioning seat 52 fixedly connected to the inner tube wall of the activation tube 4 through a connecting frame 47, and a through groove 53 for the high-temperature steam pipe 10 to pass through is penetrated on the second positioning seat 52, and a second rotating bearing 54 is provided between the through groove 53 and the high-temperature steam pipe 10, and the inner and outer rings of the second rotating bearing 54 are respectively abutted against the outer tube wall of the high-temperature steam pipe 10 and the inner groove surface of the through groove 53, and second sealing covers 55 are respectively provided at both ends of the second positioning seat 52.

[0053] The through groove 53 on the second positioning seat 52 plays a role in positioning and fixing the end of the high-temperature steam pipe 10. When the second positioning seat 52 rotates with the activation tube 4, the second rotating bearing 54 between the high-temperature steam pipe 10 and the through groove 53 plays a role in rotatingly connecting the second positioning seat 52 and the high-temperature steam pipe 10, so that the high-temperature steam pipe 10 always remains in a stationary state and can reduce the friction and wear between the second positioning seat 52 and the high-temperature steam pipe 10 when rotating. The second sealing covers 55 at both ends of the second positioning seat 52 play a sealing and protective role to prevent raw materials from entering the through groove 53.

[0054] The working principle of the present invention is as follows: the heat generated by the combustion of fuel in the combustion chamber 17 enters the heating chamber 15 of the closed heating chamber 13 through the heat transfer pipe 18 to heat the high-pressure boiler 14, and the high-temperature steam generated by the heating of the high-pressure boiler 14 enters each high-temperature steam pipe 10 through the steam main pipe 20, and the high-temperature steam enters the activation pipe 4 through the vertical steam hole 40 and the inclined steam hole 41 to quickly reach a high-temperature environment in the activation pipe 4, and the raw material enters the activation pipe 4 through the raw material inlet 6 of each activation pipe 4 through the feeder;

[0055] The rotary driver 37 is running, and the driving gear 38 rotates to synchronously drive the activation tubes 4 to rotate. The raw material is evenly and fully contacted with the high-temperature water vapor during rotation to perform an activation reaction to form activated carbon. Under the action of gravity, the activated carbon falls from the raw material outlet 7 into the discharge chamber 8 along the inclined activation tube 4, and enters the cooling box 24 from the discharge port 9 through the discharge pipe 25. The induced draft fan 27 runs through the exhaust pipe 26 to extract the high-temperature mixed exhaust gas in the cooling box 24 into the combustion chamber for combustion. The cooling water in the closed cooling water tank 23 can absorb the heat of the activated carbon in the cooling box 24 and water-cool the activated carbon in the cooling box 24. After the activated carbon is cooled, it is discharged through the discharge channel 28.

[0056] 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.

[0057] Although this article makes more use of the activation furnace body 1, the tilting bracket 2, the sealing wall 3, the activation tube 4, the activation tube rotating assembly 5, the raw material inlet 6, the raw material outlet 7, the discharge chamber 8, the discharge port 9, the high-temperature steam pipeline 10, the high-temperature steam hole structure 11, the boiler heating assembly 12, the closed heating chamber 13, the high-pressure boiler 14, the heating chamber 15, the elevated legs 16, the combustion chamber 17, the heat transfer pipeline 18, the water injection port 19, the steam main pipe 20, the steam branch pipe 21, the sealed connection structure 22, the closed cooling water tank 23, the cooling box 24, the discharge pipe 25, the exhaust pipe 26, the induced draft fan 27, the discharge channel 28, the water inlet 29, the steam channel 30, the annular positioning step 31, the annular mounting groove 32, sealing ring 33, steam sealing cover 34, transmission gear 35, fixed bracket 36, rotation driver 37, driving gear 38, steam hole group 39, vertical steam hole 40, inclined steam hole 41, rotating groove 42, rotating bearing 43, insulation cover 44, first rotating positioning assembly 45, second rotating positioning assembly 46, connecting frame 47, first positioning seat 48, slot 49, first rotating bearing 50, first sealing cover 51, second positioning seat 52, through groove 53, second rotating bearing 54, second sealing cover 55, 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. A steam heating device for a multi-tube activation furnace, comprising an activation furnace body (1) arranged at an angle and an inclined bracket (2) arranged at the bottom end of the activation furnace body (1), wherein sealing walls (3) are respectively arranged on both sides of the activation furnace body (1), characterized in that: The activation furnace body (1) is provided with a plurality of activation tubes (4) uniformly distributed along the axis of the activation furnace body (1), the inner tube wall of the activation tube (4) is provided with a heat-insulating layer, the two ends of the activation tube (4) are respectively penetrated through the sealing walls (3) on both sides and are rotatably connected to the sealing walls (3), the activation furnace body (1) is provided with an activation tube rotating assembly (5), one end of the activation tube (4) is provided with a raw material inlet (6) connected to the outside, and the other end is provided with a raw material outlet (7), and the activation furnace body (1) is close to the raw material outlet (7) ) end is also provided with a discharge chamber (8) connected to each raw material outlet (7), and a discharge port (9) is provided at the bottom of the discharge chamber (8). A high-temperature steam pipeline (10) distributed along the length direction of the activation tube (4) is provided at the center of the activation tube (4), and a high-temperature steam hole structure (11) is provided on the high-temperature steam pipeline (10). A boiler heating component (12) is provided below the activation furnace body (1), and the steam outlet end of the boiler heating component (12) is connected to the steam inlet end of each high-temperature steam pipeline (10).

2. The steam heating device of the multi-tube activation furnace according to claim 1, characterized in that: The boiler heating assembly (12) comprises a sealed heating chamber (13), a high-pressure boiler (14) is arranged in the sealed heating chamber (13), a heating chamber (15) is formed between the sealed heating chamber (13) and the high-pressure boiler (14), the bottom end of the high-pressure boiler (14) is connected to the bottom end of the sealed heating chamber (13) through a raised support leg (16), a combustion chamber (17) is arranged on one side of the sealed heating chamber (13), the combustion chamber (17) is connected to the heating chamber (15) through a heat transfer pipe (18), a water injection port (19) and a steam main pipe (20) which are sealed and penetrated through the upper end of the sealed heating chamber (13) are arranged at the upper end of the high-pressure boiler (14), the steam main pipe (20) is respectively connected to the steam inlet end of each high-temperature steam pipe (10) through a plurality of steam branch pipes (21), and a sealed connection structure (22) is arranged between the steam branch pipe (21) and the corresponding high-temperature steam pipe (10).

3. The steam heating device of the multi-tube activation furnace according to claim 2 is characterized in that: A sealed cooling water tank (23) is also provided below the activation furnace body (1), a cooling box (24) is provided inside the sealed cooling water tank (23), a discharge pipe (25) and an exhaust pipe (26) are provided at the top of the cooling box (24), the discharge pipe (25) is connected to the discharge port (9), the exhaust pipe (26) is connected to the combustion chamber (17) through an induced draft fan (27), a discharge channel (28) is provided at the bottom of the cooling box (24), the discharge channel (28) is provided with a discharge valve, a water inlet (29) and a steam channel (30) connected to the steam main pipe (20) are provided at the top of the sealed cooling water tank (23), and a closing valve is provided on the steam channel (30).

4. The steam heating device of the multi-tube activation furnace according to claim 2, characterized in that: The outer tube wall of the high-temperature steam pipe (10) is adapted to the inner tube wall of the steam branch pipe (21); the sealing connection structure (22) comprises an annular positioning step (31) arranged on the inner wall of the steam branch pipe (21); the steam inlet end of the high-temperature steam pipe (10) is inserted into the steam branch pipe (21) and abuts against the annular positioning step (31); an annular mounting groove (32) is arranged on the inner tube wall of the steam branch pipe (21) at the pipe mouth; a sealing ring (33) is arranged between the annular mounting groove (32) and the high-temperature steam pipe (10); the inner and outer rings of the sealing ring (33) are respectively tightly abutted against the outer tube wall of the high-temperature steam pipe (10) and the inner tube wall of the steam branch pipe (21); and a steam sealing cover (34) is also arranged at the outer end of the steam branch pipe (21).

5. The steam heating device of the multi-tube activation furnace according to claim 1, characterized in that: The activation tube rotating assembly (5) includes a transmission gear (35) sleeved on the activation tube (4); a fixed bracket (36) is provided on the outer side of the activation furnace body (1); a rotation driver (37) is provided on the fixed bracket (36); an output end of the rotation driver (37) is passed through the sealing wall (3); a driving gear (38) is sleeved on the output end of the rotation driver (37) and meshed with the transmission gear (35) on each activation tube (4); the driving gear (38) can synchronously drive each activation tube (4) to rotate.

6. The steam heating device of the multi-tube activation furnace according to claim 1, characterized in that: The high-temperature steam hole structure (11) comprises a plurality of steam hole groups (39) arranged on the wall of the high-temperature steam pipe (10) and evenly distributed along the circumference of the high-temperature steam pipe (10), each of the steam hole groups (39) comprising a plurality of vertical steam holes (40) evenly distributed along the length direction of the high-temperature steam pipe (10), and inclined steam holes (41) inclined toward the raw material inlet (6) are arranged between the vertical steam holes (40).

7. The steam heating device of the multi-tube activation furnace according to claim 5, characterized in that: The sealing wall (3) is provided with a rotating groove (42) adapted to the activation tube (4), a rotating bearing (43) is provided between the rotating groove (42) and the activation tube (4), and a heat preservation cover (44) is provided at the outer end of the rotating groove (42).

8. The steam heating device for a multi-tube activation furnace according to any one of claims 1 to 7, characterized in that: The high-temperature steam pipe (10) extends into the activation pipe (4) and is connected to the activation pipe (4) at both ends thereof via a first rotation positioning assembly (45) and a second rotation positioning assembly (46) respectively.

9. The steam heating device of the multi-tube activation furnace according to claim 8, characterized in that: The first rotating positioning assembly (45) comprises a first positioning seat (48) fixedly connected to the inner tube wall of the activation tube (4) through a connecting frame (47); a slot (49) for inserting the high-temperature steam pipe (10) is provided on the first positioning seat (48); a first rotating bearing (50) is provided between the high-temperature steam pipe (10) and the slot (49); inner and outer rings of the first rotating bearing (50) are respectively abutted against the outer tube wall of the high-temperature steam pipe (10) and the inner groove surface of the slot (49); and a first sealing cover (51) is provided at the outer end of the first positioning seat (48).

10. The steam heating device of the multi-tube activation furnace according to claim 8, characterized in that: The second rotating positioning assembly (46) comprises a second positioning seat (52) fixedly connected to the inner tube wall of the activation tube (4) through a connecting frame (47); a through groove (53) for the high-temperature steam pipe (10) to pass through is provided on the second positioning seat (52); a second rotating bearing (54) is provided between the through groove (53) and the high-temperature steam pipe (10); the inner and outer rings of the second rotating bearing (54) are respectively abutted against the outer tube wall of the high-temperature steam pipe (10) and the inner groove surface of the through groove (53); and second sealing covers (55) are respectively provided at both ends of the second positioning seat (52).

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