Multi-section type activated carbon activation furnace device capable of accurately spraying steam

Abstract

The invention relates to the technical field of activated carbon production equipment, and provides a multi-section type steam precise injection activated carbon activation furnace device which comprises a supporting bottom plate, an activation furnace body and a belt, the activation furnace body and the belt are arranged on the supporting bottom plate, a conveying pipe is arranged on one side of the activation furnace body and communicates with the interior of the activation furnace body, and the conveying pipe communicates with the interior of the activation furnace body. A feeding hopper is arranged above the feeding end of the conveying pipe, and a screening plate and a feeding bin are arranged above the feeding hopper; and an industrial steam generator is further arranged on the supporting bottom plate, in the embodiment of the invention, the gear II drives the threaded rod to rotate, and the sliding block is driven to move under the guiding and limiting of the round rod, so that the baffle plate is driven to do reciprocating opening and closing movement at the discharge hole in the bottom of the feed bin. The intermittent opening mode not only can be matched with the vibration frequency of the screening plate to prevent the raw materials from being stacked, but also can avoid blockage caused by excessive falling of the raw materials at a time, and uniform and controllable automatic discharging is achieved.

Description

Technical Field

[0001] This invention relates to the field of activated carbon production equipment technology, and in particular to an activated carbon activation furnace device with multi-stage precise steam injection. Background Technology

[0002] Activated carbon, due to its well-developed pore structure and large specific surface area, is widely used in water treatment, air purification, solvent recovery, and catalyst support. The production of activated carbon mainly involves two processes: carbonization and activation, with activation being the key step in forming the pore structure. Currently, the most commonly used physical activation method in industry utilizes steam as an activating agent, which reacts with carbon atoms at high temperatures to remove tar from the pores and ablate new micropores.

[0003] Existing activated carbon activation equipment typically employs externally heated rotary kilns. However, in actual production processes, existing activation furnace devices exhibit the following significant drawbacks:

[0004] 1. Inefficient steam injection control leads to unstable activation quality: Traditional activation furnaces typically employ single-point steam injection or simple multi-hole pipe steam injection. However, the furnace interior is usually divided along the axial direction into different temperature zones, such as a drying zone, a preheating zone, and an activation reaction zone. These different temperature zones have drastically different requirements for steam flow rate and pressure. Existing technology struggles to independently adjust the steam volume according to the process requirements of each temperature zone, resulting in excessive steam in some areas causing severe carbon burn-off, while insufficient steam in others leads to incomplete activation (low iodine value).

[0005] 2. The feeding system is prone to clogging and lacks screening capabilities: Activated carbon raw materials (such as carbonized materials) typically contain particles or impurities of varying sizes. Most existing feeding devices are simple funnels paired with screw conveyors. On the one hand, when large particles are mixed in the raw material, they can easily jam the conveyor blades or lead to uneven activation later. On the other hand, powdery or irregular particles can easily form bridging or arching at the bottom of the feed hopper, causing poor material flow or even material interruption, affecting the continuity of production.

[0006] 3. Complex mechanical structure and high energy consumption: To solve the aforementioned feeding problem, existing production lines typically require additional separate equipment such as vibrating screens, vibrating feeders, and independent conveyor motors. This not only increases the equipment's footprint and manufacturing costs, but also significantly increases production energy consumption due to the simultaneous operation of multiple independent motors, and consequently increases the difficulty of equipment maintenance.

[0007] Therefore, developing a device that integrates raw material screening, anti-clogging feeding and conveying, and multi-stage precision steam activation to improve activated carbon activation efficiency and product quality is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0008] To achieve the above objectives, the present invention employs the following technical solution: a multi-stage steam precision injection activated carbon activation furnace device, comprising a supporting base plate and an activation furnace body and a conveyor belt mounted on the supporting base plate. A conveying pipe is provided on one side of the activation furnace body, and the conveying pipe connects to the interior of the activation furnace body. A feeding hopper is provided above the feeding end of the conveying pipe, and a screening plate and a feeding bin are provided above the feeding hopper. An industrial steam generator is also provided on the supporting base plate, and a steam pipe is connected to the output end of the industrial steam generator. The steam pipe extends axially along the activation furnace body. Multiple jet pipes are connected at intervals on the steam pipe, and the ends of the jet pipes extend into the interior of the activation furnace body. The device also includes a drive mechanism for driving material conveying and screening vibration, the drive mechanism including a motor mounted at one end of the conveying pipe.

[0009] The technical advantages of adopting the above-mentioned further solutions are as follows: Through integrated automated design, continuous production of activated carbon is achieved throughout the entire process, from feeding and screening to conveying and high-temperature activation. In particular, by setting multiple jet pipes distributed along the axial direction of the activation furnace body on the support base plate, in conjunction with an industrial steam generator and steam pipes, targeted multi-point steam injection can be achieved in different areas of the activation furnace, solving the problems of uneven steam distribution and numerous activation dead zones in traditional activation furnaces.

[0010] In a preferred embodiment, a rotating shaft is rotatably mounted inside the conveying pipe, and auger blades are fixedly connected to the outer surface of the rotating shaft; the output shaft of the first motor is fixedly connected to one end of the rotating shaft; a rotating rod is connected to the end of the rotating shaft extending out of the conveying pipe via a belt drive, the rotating rod is rotatably mounted on a support frame, and a reciprocating lead screw is provided at one end of the rotating rod.

[0011] The technical advantages of adopting the above-mentioned further solution are as follows: A motor is used to simultaneously drive the auger blades inside the conveying pipe for material transport, and a belt and rotating rod drive the reciprocating screw for the operation of the screening mechanism. This linkage design greatly simplifies the equipment structure, reduces energy consumption and manufacturing costs, and ensures that screening only occurs during material transport, avoiding the waste of idle screening plates.

[0012] In a preferred embodiment, a slider is threadedly connected to the outer surface of the reciprocating lead screw, and a limit rod slides through the top of the slider; a roller is rotatably connected to the side of the slider; a triangular plate is fixedly connected to one side of the screening plate, and an inclined groove is formed inside the triangular plate, with the roller slidably disposed inside the inclined groove; the horizontal reciprocating movement of the slider drives the roller to roll in the inclined groove, thereby driving the triangular plate and the screening plate to move up and down reciprocally in the vertical direction.

[0013] The technical advantage of adopting the above-mentioned further solution is that by utilizing the mechanical cooperation of the reciprocating screw-roller-skewer, the horizontal reciprocating motion of the slider is smoothly converted into the vertical vibration of the screening plate and the triangular plate. Compared with the traditional eccentric wheel vibration, this structure operates more smoothly, and the rolling friction of the roller in the skewer is small, resulting in low mechanical wear and effectively extending the service life of the equipment.

[0014] In a preferred embodiment, limiting telescopic rods are fixedly connected to the four corners of the lower surface of the screening plate. Springs are sleeved on the outer surface of the limiting telescopic rods, and the two ends of the springs abut against the lower surface of the screening plate and the support frame below, respectively.

[0015] The technical effect of adopting the above-mentioned further solution is that the combination of spring and limit telescopic rod not only plays the role of assisting the screening plate to quickly reset and enhancing the vibration effect, but also acts as a buffer component to absorb the impact force on the support frame below when the screening plate falls, protecting the overall mechanical structure from being damaged by vibration and reducing the noise during equipment operation.

[0016] In a preferred embodiment, a rack is vertically fixed to one side of the screening plate, and a first gear and a second gear are rotatably connected to one side of the feed hopper. The rack meshes with the first gear, and the first gear meshes with the second gear. The circumference of the first gear is greater than the circumference of the second gear.

[0017] The technical advantage of adopting the above-mentioned further solution is that, through the cooperation of rack and pinion and gear set, the vertical vibration of the screening plate is converted into rotational motion, which is used to drive the upper feeding mechanism. The specially designed gear has a circumference of one side that is larger than that of the other side, forming a speed-increasing transmission ratio. This allows the small vertical amplitude of the screening plate to be converted into a faster rotational speed of the second gear, thereby ensuring the sensitivity and response speed of the feeding control.

[0018] In a preferred embodiment, a threaded rod is fixedly connected to the shaft of the second gear, and a sliding block is threadedly connected to the outer surface of the threaded rod. A limit rod passes through the sliding block. A baffle plate is fixedly connected to the bottom of the sliding block, and the baffle plate is slidably disposed at the discharge port at the bottom of the feed hopper.

[0019] The technical effect of adopting the above-mentioned further solution is that, driven by the threaded rod and sliding block, the baffle plate reciprocates to open and close the discharge port at the bottom of the feed hopper. This dynamic cutting feeding method can, on the one hand, achieve intermittent automatic feeding based on the vibration frequency of the screening plate, preventing excessive material accumulation; on the other hand, the reciprocating motion of the baffle plate can effectively break the bridging phenomenon at the bottom of the feed hopper, preventing activated carbon raw materials from clogging the discharge port and ensuring continuous production.

[0020] In a preferred embodiment, the activation furnace body is provided with an inner cylinder that rotates inside, and a second motor is provided on the outer side of the end of the activation furnace body away from the conveying pipe, with the output shaft of the second motor fixedly connected to the inner cylinder.

[0021] The technical advantages of adopting the above-mentioned further solution are: The use of a rotating inner cylinder to heat the activated carbon causes the material to continuously tumble within the activation furnace, avoiding the uneven heating and uneven heating phenomenon caused by static heating. Two motors independently drive the inner cylinder, allowing for speed adjustment according to process requirements, thereby controlling the residence time of the material in the furnace and ensuring a complete activation reaction.

[0022] In a preferred embodiment, the inner wall of the inner cylinder is provided with multiple lifting plates for turning over the activated carbon raw materials inside when the inner cylinder rotates.

[0023] The technical effect of adopting the above-mentioned further solution is that the lifting plates on the inner cylinder wall pick up and scatter the activated carbon at the bottom when rotating, forming a uniform material curtain inside the furnace. This not only increases the contact area between the activated carbon and the high-temperature gas, but more importantly, it allows the steam injected by the jet pipe to more fully coat each carbon particle.

[0024] In a preferred embodiment, multiple jet pipes on the steam pipe are arranged at intervals along the conveying direction, each corresponding to a different temperature zone inside the activation furnace body; a one-way valve is provided at the connection between each jet pipe and the steam pipe, the one-way valve including a flow regulating handwheel for independently adjusting the steam injection volume of each jet pipe.

[0025] The technical advantage of adopting the above-mentioned further solution is that, by installing an independent one-way valve on each jet pipe, operators can precisely adjust the steam injection volume for the corresponding temperature zone according to the different steam requirements of different stages in the activated carbon activation process, such as drying, carbonization remediation, micropore activation, and pore expansion. This avoids carbon burn-off and energy waste caused by excessive steam.

[0026] In a preferred embodiment, a support plate is provided on the support base plate, the feed hopper is fixedly installed on the support plate, and the bottom outlet of the feed hopper is connected to the side wall of the conveying pipe.

[0027] The technical effect of adopting the above-mentioned further solution is that the support plate structure provides a stable support point for the feeding hopper and the screening vibration mechanism above, and physically separates the feeding system from the high-temperature rotating activation furnace body, reducing the impact of furnace body thermal deformation on the precision screening mechanism.

[0028] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0029] 1. In this embodiment of the invention, while the screening plate performs vertical reciprocating motion, it drives the rack fixed on its side to move up and down synchronously. The rack drives the meshing gear one to rotate, which in turn drives the meshing gear two to rotate. Since the diameter of gear one is larger than that of gear two, it has an acceleration effect, making gear two rotate at a faster speed. Gear two drives the threaded rod to rotate, and under the guidance and limitation of the round rod, it drives the sliding block to move, which in turn drives the baffle plate to perform reciprocating opening and closing motion at the discharge port at the bottom of the feed bin. This intermittent opening method can not only match the vibration frequency of the screening plate to prevent raw material accumulation, but also avoid excessive raw material falling at one time and causing blockage, thus realizing uniform and controllable automatic feeding.

[0030] 2. In this embodiment of the invention, activated carbon raw material is poured into the feeding hopper. An external power source starts motor one, whose output drives a rotating shaft. The shaft, via belt drive, drives an upper rotating rod to rotate synchronously. The rotating rod drives a reciprocating screw on it to rotate. Under the limiting action of a limiting rod, a slider is driven to perform horizontal reciprocating motion on the surface of the reciprocating screw. The movement of the slider causes rollers to roll within the inclined groove inside the triangular plate. Due to the inclined angle of the groove, when the rollers move horizontally, the inclined surface forces the triangular plate and the screening plate fixed to it to overcome the spring resistance and move downwards; conversely, they return to their original position under the spring's rebound force. Through the reciprocating rolling of the rollers, the screening plate achieves high-frequency vertical reciprocating lifting and lowering, screening the falling activated carbon. Unqualified large particles are blocked above the screening plate, while qualified small particles fall into the feeding hopper.

[0031] 3. In this embodiment of the invention, while motor one drives the rotating shaft to rotate, it directly drives the auger blades located inside the conveying pipe to rotate, continuously conveying the qualified activated carbon raw material falling into the feed hopper to the inner cylinder of the activation furnace body. At this time, motor two is started to drive the inner cylinder to rotate, so that the internal material is heated evenly. The activation furnace body maintains a high-temperature environment through a heating device. At the same time, steam generated by an industrial steam generator enters the steam pipe and is injected into the furnace through multiple jet pipes distributed on the steam pipe. The multiple jet pipes are distributed along the axial direction, each corresponding to a different temperature zone inside the activation furnace body. The operator can independently and precisely control the steam injection flow rate of the temperature zone by adjusting the one-way valve corresponding to each jet pipe, thereby achieving precise process control for different activation stages and improving the activation quality and yield of activated carbon. Attached Figure Description

[0032] Figure 1 A three-dimensional structural schematic diagram of a multi-stage steam precision injection activated carbon activation furnace device provided by the present invention;

[0033] Figure 2 An enlarged structural diagram of the rotating rod of a multi-stage steam precision injection activated carbon activation furnace device provided by the present invention;

[0034] Figure 3 An enlarged structural diagram of the triangular plate of a multi-stage steam precision injection activated carbon activation furnace device provided by the present invention;

[0035] Figure 4 A rear view of the activated carbon activation furnace device with multi-stage steam precision injection provided by the present invention.

[0036] Figure 5 A schematic diagram of the auger blades inside the conveying pipe of a multi-stage steam precision injection activated carbon activation furnace device provided by the present invention.

[0037] Figure 6 A schematic diagram of the internal structure of the activation furnace body of a multi-stage steam precision injection activated carbon activation furnace device provided by the present invention;

[0038] Figure 7 This is a front view structural diagram of a multi-stage steam precision injection activated carbon activation furnace device provided by the present invention.

[0039] Legend:

[0040] 101. Support base plate; 102. Motor 1; 103. Conveying pipe; 104. Rotating shaft; 105. Screw blade; 106. Belt; 107. Feed hopper; 108. Rotating rod; 109. Reciprocating screw; 1091. Limiting rod; 110. Triangular plate; 111. Sliding block; 112. Inclined chute; 113. Roller; 114. Screening plate; 115. Support frame; 116. Spring; 117. 118. Limiting telescopic rod; 119. Support plate; 120. Rack; 121. Gear 1; 122. Gear 2; 123. Threaded rod; 124. Sliding block; 125. Feed hopper; 126. Baffle plate; 127. Round rod; 128. Activation furnace body; 129. Motor 2; 130. Inner cylinder; 131. Industrial steam generator; 132. Steam pipe; 133. Check valve; 144. Jet pipe. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see Figures 1 to 7This embodiment provides a technical solution: a multi-stage steam precision injection activated carbon activation furnace device, including: a supporting base plate 101 and an activation furnace body 127 and a belt 106 disposed on the supporting base plate 101. A conveying pipe 103 is disposed on one side of the activation furnace body 127, and the conveying pipe 103 is connected to the interior of the activation furnace body 127. A feeding hopper 107 is disposed above the feeding end of the conveying pipe 103, and a screening plate 114 and a feeding bin 124 are disposed above the feeding hopper 107. An industrial steam generator 130 is also disposed on the supporting base plate 101. The output end of the industrial steam generator 130 is connected to a steam pipe 131, and the steam pipe 131 extends along the axial direction of the activation furnace body 127. A plurality of jet pipes 133 are connected at intervals on the steam pipe 131, and the ends of the jet pipes 133 extend into the interior of the activation furnace body 127. It also includes a drive mechanism for driving material conveying and screening vibration, and the drive mechanism includes a motor 102 disposed at one end of the conveying pipe 103.

[0043] In use, the integrated automated design enables continuous production of activated carbon from feeding screening and conveying to high-temperature activation. In particular, by setting multiple jet pipes 133 distributed along the axial direction of the activation furnace body 127 on the support base plate 101, in conjunction with the industrial steam generator 130 and steam pipe 131, targeted multi-point steam injection can be achieved in different areas of the activation furnace, solving the problems of uneven steam distribution and many dead zones in traditional activation furnaces.

[0044] like Figures 1 to 7 As shown, in one embodiment, a rotating shaft 104 is rotatably mounted inside the conveying pipe 103, and auger blades 105 are fixedly connected to the outer surface of the rotating shaft 104. The output shaft of the motor 102 is fixedly connected to one end of the rotating shaft 104. One end of the rotating shaft 104 extending out of the conveying pipe 103 is connected to a rotating rod 108 via a belt 106. The rotating rod 108 is rotatably mounted on a support frame, and a reciprocating screw 109 is provided at one end of the rotating rod 108. The motor 102 simultaneously drives the auger blades 105 inside the conveying pipe 103 to convey materials, and drives the reciprocating screw 109 via the belt 106 and the rotating rod 108 to operate the screening mechanism. This linkage design greatly simplifies the equipment structure, reduces energy consumption and manufacturing costs, and ensures that screening only occurs when materials are being conveyed, avoiding the waste of the screening plate 114 during idle rotation.

[0045] like Figures 1 to 7As shown, in one embodiment, a slider 111 is threadedly connected to the outer surface of the reciprocating screw 109, and a limit rod 1091 slides through the top of the slider 111. A roller 113 is rotatably connected to the side of the slider 111. A triangular plate 110 is fixedly connected to one side of the screening plate 114, and a groove 112 is formed inside the triangular plate 110. The roller 113 is slidably disposed inside the groove 112. The horizontal reciprocating movement of the slider 111 drives the roller 113 to roll in the groove 112, thereby driving the triangular plate 110 and the screening plate 114 to move up and down in the vertical direction. By utilizing the mechanical cooperation of the reciprocating screw 109, the slider 111, the roller 113, and the groove 112, the horizontal reciprocating motion of the slider 111 is smoothly converted into the vertical vibration of the screening plate 114 and the triangular plate 110. Compared with the traditional eccentric wheel vibration, this structure operates more smoothly, and the rolling friction of the roller 113 in the groove 112 is small, resulting in low mechanical wear and effectively extending the service life of the equipment.

[0046] like Figures 1 to 7 As shown, in one embodiment, limiting telescopic rods 117 are fixedly connected to the four corners of the lower surface of the screening plate 114. Springs 116 are sleeved on the outer surface of the limiting telescopic rods 117. The two ends of the springs 116 abut against the lower surface of the screening plate 114 and the support frame 115 below, respectively. The combination of the springs 116 and the limiting telescopic rods 117 not only assists the screening plate 114 in quickly resetting and enhances the vibration effect, but also acts as a buffer component to absorb the impact force of the screening plate 114 on the support frame 115 below when it falls, protecting the overall mechanical structure from damage and reducing the noise during equipment operation.

[0047] like Figures 1 to 7 As shown, in one embodiment, a rack 119 is vertically fixedly connected to one side of the screening plate 114, and a gear 120 and a gear 121 are rotatably connected to one side of the feed hopper 124. The rack 119 meshes with the gear 120, and the gear 120 meshes with the gear 121. The circumference of the gear 120 is greater than that of the gear 121. Through the engagement of the rack 119 and the gear set, the vertical vibration of the screening plate 114 is converted into rotational motion to drive the upper feeding mechanism. The specially designed gear 120 has a larger circumference than the gear 121, forming a speed-increasing transmission ratio. This allows the small vertical amplitude of the screening plate 114 to be converted into a faster rotational speed of the gear 121, thereby ensuring the sensitivity and response speed of the feeding control.

[0048] like Figures 1 to 7As shown, in one embodiment, a threaded rod 122 is fixedly connected to the shaft of gear 121, and a sliding block 123 is threadedly connected to the outer surface of the threaded rod 122. A limiting rod 126 passes through the sliding block 123. A baffle plate 125 is fixedly connected to the bottom of the sliding block 123. The baffle plate 125 is slidably disposed at the discharge port at the bottom of the feed hopper 124. Driven by the threaded rod 122 and the sliding block 123, the baffle plate 125 reciprocates to open and close the discharge port at the bottom of the feed hopper 124. This dynamic cutting feeding method can, on the one hand, achieve intermittent automatic feeding according to the vibration frequency of the screening plate 114 to prevent excessive material accumulation; on the other hand, the reciprocating motion of the baffle plate 125 can effectively break the bridging phenomenon at the bottom of the feed hopper 124, prevent activated carbon raw materials from clogging the discharge port, and ensure continuous production.

[0049] like Figures 1 to 7 As shown, in one embodiment, an inner cylinder 129 is rotatably arranged inside the activation furnace body 127. A second motor 128 is arranged on the outer side of the end of the activation furnace body 127 away from the conveying pipe 103. The output shaft of the second motor 128 is fixedly connected to the inner cylinder 129. The rotating inner cylinder 129 is used to heat the activated carbon, causing the material to continuously tumble inside the activation furnace body 127, avoiding the uneven heating phenomenon of burning on the outside and raw inside caused by static heating. The second motor 128 independently drives the inner cylinder 129, and the speed can be adjusted according to process requirements, thereby controlling the residence time of the material in the furnace and ensuring a complete activation reaction.

[0050] like Figures 1 to 7 As shown, in one embodiment, multiple lifting plates are provided on the inner wall of the inner cylinder 129 to agitate the activated carbon raw materials inside when the inner cylinder 129 rotates. The lifting plates on the inner cylinder 129 wall scoop up and scatter the activated carbon at the bottom during rotation, forming a uniform material curtain inside the furnace. This not only increases the contact area between the activated carbon and the high-temperature gas, but more importantly, it allows the steam injected by the jet pipe 133 to more thoroughly coat each carbon particle.

[0051] like Figures 1 to 7 As shown, in one embodiment, multiple jet pipes 133 on the steam pipe 131 are arranged at intervals along the conveying direction, corresponding to different temperature zones inside the activation furnace body 127. A one-way valve 132 is provided at the connection between each jet pipe 133 and the steam pipe 131. The one-way valve 132 includes a flow regulating handwheel for independently adjusting the steam injection volume of each jet pipe 133. By providing an independent one-way valve 132 on each jet pipe 133, the operator can precisely adjust the steam injection volume of the corresponding temperature zone according to the different steam requirements of different stages in the activated carbon activation process, such as drying, carbonization remediation, micropore activation, and pore expansion. This avoids carbon burn-off and energy waste caused by excessive steam.

[0052] like Figures 1 to 7 As shown, in one embodiment, a support plate 118 is provided on the support base plate 101, and the feed hopper 107 is fixedly installed on the support plate 118. The bottom outlet of the feed hopper 107 is connected to the side wall of the conveying pipe 103. The structure of the support plate 118 provides a stable support point for the feed hopper 107 and the screening vibration mechanism above it, and physically separates the feeding system from the high-temperature rotating activation furnace body 127, thereby reducing the impact of furnace body thermal deformation on the precision screening mechanism.

[0053] Working principle: First, the activated carbon raw material is poured into the feed hopper 124. Motor 102 is started by an external power source. The output of motor 102 drives the rotating shaft 104 to rotate. The rotating shaft 104, through belt 106, drives the rotating rod 108 above to rotate synchronously. The rotating rod 108 drives the reciprocating screw 109 on it to rotate. Under the limiting action of the limiting rod 1091, the slider 111 is driven to perform horizontal reciprocating motion on the surface of the reciprocating screw 109. The movement of the slider 111 drives the roller 113 to roll in the inclined groove 112 inside the triangular plate 110. Because the inclined groove 112 has an inclination angle, when the roller 113 moves horizontally, the inclined surface forces the triangular plate 110 and the screening plate 114 fixed to it to overcome the resistance of the spring 116 and move downwards; conversely, it returns to its original position under the restoring force of the spring 116. The reciprocating rolling of the roller 113 causes the screening plate 114 to achieve high-frequency reciprocating vertical vibration, which screens the falling activated carbon. Unqualified large particles are blocked above the screening plate 114, while qualified small particles fall into the feed hopper 107.

[0054] While the screening plate 114 performs vertical reciprocating motion, it drives the rack 119 fixed on its side to move up and down synchronously. The rack 119 drives the meshing gear 120 to rotate, which in turn drives the meshing gear 121 to rotate. Since the diameter and circumference of gear 120 are larger than those of gear 121, it has an acceleration effect, making gear 121 rotate at a faster speed. Gear 121 drives the threaded rod 122 to rotate, and under the guidance and limitation of the round rod 126, it drives the sliding block 123 to move, which in turn drives the baffle plate 125 to perform reciprocating opening and closing motion at the discharge port at the bottom of the feed bin 124. This intermittent opening method can not only cooperate with the vibration frequency of the screening plate 114 to prevent raw material accumulation, but also avoid the blockage caused by too much raw material falling at one time, thus realizing uniform and controllable automatic feeding.

[0055] While motor 102 drives shaft 104 to rotate, it directly drives the auger blades 105 located inside conveying pipe 103 to rotate, continuously conveying qualified activated carbon raw materials falling into feed hopper 107 to the right into inner cylinder 129 of activation furnace body 127. At this time, motor 128 is started to drive inner cylinder 129 to rotate, so that the internal material is heated evenly. The high-temperature environment inside activation furnace body 127 is maintained by heating device. At the same time, steam generated by industrial steam generator 130 enters steam pipe 131 and is injected into the furnace through multiple jet pipes 133 distributed on steam pipe 131. Multiple jet pipes 133 are distributed axially, corresponding to different temperature zones inside activation furnace body 127, such as preheating section and activation section. Operators can independently and precisely control the steam injection flow rate of each temperature zone by adjusting the one-way valve 132 corresponding to each jet pipe 133, thereby achieving precise process control for different activation stages and improving the activation quality and yield of activated carbon.

[0056] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0057] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A multi-stage steam precision injection activated carbon activation furnace device, comprising a supporting base plate (101) and an activation furnace body (127) and a belt conveyor (106) disposed on the supporting base plate (101), characterized in that: A conveying pipe (103) is provided on one side of the activation furnace body (127), the conveying pipe (103) is connected to the interior of the activation furnace body (127), a feeding hopper (107) is provided above the feeding end of the conveying pipe (103), and a screening plate (114) and a feeding bin (124) are provided above the feeding hopper (107); an industrial steam generator (130) is also provided on the supporting base plate (101), the output end of the industrial steam generator (130) is connected to a steam pipe (131), the steam pipe (131) extends along the axial direction of the activation furnace body (127); a plurality of jet pipes (133) are connected at intervals on the steam pipe (131), and the end of the jet pipes (133) extends into the interior of the activation furnace body (127); It also includes a drive mechanism for driving material conveying and screening vibration, the drive mechanism including a motor (102) disposed at one end of the conveying pipe (103).

2. The activated carbon activation furnace device with multi-stage steam precision injection according to claim 1, characterized in that: The conveying pipe (103) is internally equipped with a rotating shaft (104), and the outer surface of the rotating shaft (104) is fixedly connected with an auger blade (105); the output shaft of the motor (102) is fixedly connected to one end of the rotating shaft (104); the end of the rotating shaft (104) extending out of the conveying pipe (103) is connected to a rotating rod (108) via a belt (106), the rotating rod (108) is rotatably mounted on a support frame, and one end of the rotating rod (108) is equipped with a reciprocating screw (109).

3. The activated carbon activation furnace device with multi-stage steam precision injection according to claim 2, characterized in that: The reciprocating screw (109) is threaded with a slider (111) on its outer surface. A limit rod (1091) slides through the top of the slider (111). A roller (113) is rotatably connected to the side of the slider (111). A triangular plate (110) is fixedly connected to one side of the screening plate (114). An inclined groove (112) is opened inside the triangular plate (110). The roller (113) is slidably disposed inside the inclined groove (112). The horizontal reciprocating movement of the slider (111) drives the roller (113) to roll in the inclined groove (112), thereby driving the triangular plate (110) and the screening plate (114) to move up and down in the vertical direction.

4. The activated carbon activation furnace device with multi-stage steam precision injection according to claim 3, characterized in that: Limiting telescopic rods (117) are fixedly connected to the four corners of the lower surface of the screening plate (114). Springs (116) are sleeved on the outer surface of the limiting telescopic rods (117). The two ends of the springs (116) abut against the lower surface of the screening plate (114) and the support frame (115) below it, respectively.

5. The activated carbon activation furnace device with multi-stage steam precision injection according to claim 4, characterized in that: A rack (119) is vertically fixed to one side of the screening plate (114), and a gear one (120) and a gear two (121) are rotatably connected to one side of the feed hopper (124). The rack (119) meshes with the gear one (120), and the gear one (120) meshes with the gear two (121). The circumference of the gear one (120) is greater than the circumference of the gear two (121).

6. The activated carbon activation furnace device with multi-stage steam precision injection according to claim 5, characterized in that: A threaded rod (122) is fixedly connected to the shaft of the gear two (121). A sliding block (123) is threadedly connected to the outer surface of the threaded rod (122). A round rod (126) for limiting passes through the sliding block (123). A baffle plate (125) is fixedly connected to the bottom of the sliding block (123). The baffle plate (125) is slidably disposed at the discharge port at the bottom of the feed hopper (124).

7. The activated carbon activation furnace device with multi-stage steam precision injection according to claim 6, characterized in that: The activation furnace body (127) has an inner cylinder (129) that rotates inside. A second motor (128) is provided on the outer side of the end of the activation furnace body (127) away from the conveying pipe (103). The output shaft of the second motor (128) is fixedly connected to the inner cylinder (129).

8. The activated carbon activation furnace device with multi-stage steam precision injection according to claim 7, characterized in that: Multiple lifting plates are provided on the inner wall of the inner cylinder (129) to agitate the activated carbon raw materials inside when the inner cylinder (129) rotates.

9. The activated carbon activation furnace device with multi-stage steam precision injection according to claim 8, characterized in that: Multiple jet pipes (133) on the steam pipe (131) are arranged at intervals along the conveying direction, corresponding to different temperature zones inside the activation furnace body (127); a one-way valve (132) is provided at the connection between each jet pipe (133) and the steam pipe (131), and the one-way valve (132) includes a flow regulating handwheel for independently regulating the steam injection amount of each jet pipe (133).

10. The multi-stage steam precision injection activated carbon activation furnace device according to claim 9, characterized in that: A support plate (118) is provided on the support base plate (101), and the feed hopper (107) is fixedly installed on the support plate (118). The bottom outlet of the feed hopper (107) is connected to the side wall of the conveying pipe (103).

Images