Automatic feeding system for powdered activated carbon

Abstract

The invention relates to the technical field of automatic feeding, and provides an automatic powdered activated carbon feeding system which comprises a transfer box connected with an air inlet pipeline and a jet flow pipeline. The feeding unit comprises a charging cabin used for adding powdered activated carbon and a spiral conveyor used for conveying the powdered activated carbon; the air supply unit comprises a Roots blower and an airflow amplifier connected to an air outlet of the Roots blower, and one end of the airflow amplifier is connected to the air inlet pipeline; the end, away from the transfer box, of the jet flow pipeline is connected to an air inlet of the dust removal unit, and an exhaust outlet of the dust removal unit is provided with a filter screen plate for intercepting powdered activated carbon; and the activated carbon bin is arranged below the dust removal unit, and a discharging pipeline is arranged at the top of the activated carbon bin and communicates with the interior of the dust removal unit. On the basis, the powdered activated carbon can be conveniently blown into the carbon bin in an airflow transportation mode, and the feeding device has the advantages that the feeding efficiency is high, and the manual carrying cost is reduced.

Description

Technical Field

[0001] This application relates to the field of material conveying technology, and in particular to an automatic feeding system for powdered activated carbon. Background Technology

[0002] Powdered activated carbon is a black, powdery, porous adsorbent material made from high-quality wood chips, coconut shells, coal, and other raw materials through a series of production processes (such as carbonization and activation). It has advantages such as fast filtration speed, good adsorption performance, and strong decolorization and deodorization capabilities, and is widely used in various fields such as waste treatment, sewage treatment, and electroplating in power plants.

[0003] Powdered activated carbon currently plays a crucial role in the waste treatment industry, widely used in various stages such as leachate treatment, odor control, and incineration flue gas purification. In some stages, the waste treatment equipment used is large or extremely tall, requiring powdered activated carbon to be added from the top. Due to the significant height of this equipment, ladders must be erected to facilitate the transport of the powdered activated carbon to the top, resulting in substantial physical exertion for the workers. While hoisting equipment can be used for transporting powdered activated carbon during production, this method suffers from low loading efficiency and high labor costs, requiring improvement. Summary of the Invention

[0004] Based on this, this application provides an automatic powdered activated carbon feeding system that can conveniently blow powdered activated carbon into the carbon bin by airflow, so that the powdered activated carbon can be added to various waste treatment equipment to play its role. It has the advantages of high feeding efficiency and reduced manual handling costs.

[0005] The automatic powdered activated carbon feeding system provided in this application adopts the following technical solution: An automatic powdered activated carbon feeding system includes: The transfer box is connected to both the air inlet pipe and the jet pipe. The feeding unit includes a feeding chamber for adding powdered activated carbon and a screw conveyor for conveying the powdered activated carbon. The end of the screw conveyor is connected to the inside of the transfer box. The air supply unit includes a Roots blower and an airflow amplifier connected to the outlet of the Roots blower. The end of the airflow amplifier away from the Roots blower is connected to the air inlet duct. The dust removal unit has a jet pipe connected to the air inlet of the dust removal unit at the end away from the transfer box, and the exhaust port of the dust removal unit is equipped with a filter screen plate for intercepting powdered activated carbon. The activated carbon bin is located below the dust removal unit and is enclosed. The top of the activated carbon bin is equipped with a discharge pipe, which is connected to the inside of the dust removal unit.

[0006] By adopting the above technical solution, this application adds powdered activated carbon to the feeding chamber, and the screw conveyor continuously transports the powdered activated carbon to the transfer box during operation. The airflow blown by the Roots blower is amplified and accelerated by the airflow amplifier to form a jet. After entering the transfer box, the jet-shaped airflow carries the powdered activated carbon upward along the jet pipeline, and finally the powdered activated carbon is carried into the dust removal unit. At this time, the airflow can be discharged to the outside through the exhaust port of the dust removal unit, while the powdered activated carbon in the airflow can be intercepted by the dust removal unit and fall into the activated carbon bin, so that the powdered activated carbon can be added to various waste treatment equipment for subsequent use. The entire process uses airflow to complete the automatic feeding of powdered activated carbon, which has high feeding efficiency and does not require manual assistance, which can greatly reduce labor costs and facilitate widespread application.

[0007] Optionally, the dust removal unit includes a main mechanism box and a first dust suppression mechanism and a second dust suppression mechanism disposed inside the main mechanism box. The end of the jet pipe away from the transfer box is connected to the inside of the main mechanism box. A vertically arranged settling channel is provided inside the main mechanism box, and the jet pipe is always directly facing the settling channel. The bottom of the settling channel is connected to the material discharge pipe, and the top of the settling channel is connected to the second dust suppression mechanism. An exhaust pipe for exhaust is connected to the side of the main mechanism box, and the second dust suppression mechanism is connected to the exhaust pipe. The first dust suppression mechanism includes a sealing plate seat rotatably installed in the settling channel and a drive component for driving the sealing plate seat to rotate. The outer circumferential surface of the sealing plate seat is provided with a notch groove, which runs through both end faces of the sealing plate seat, and the jet pipeline and the notch groove are normally kept in direct communication. When the drive component is operating, the sealing plate seat intermittently blocks the jet pipeline.

[0008] By adopting the above technical solution, during normal operation, the drive component can drive the sealing plate seat to rotate circumferentially, causing the sealing plate seat to intermittently block the jet pipeline. When the notch of the sealing plate seat is directly opposite the jet pipeline, the powdered activated carbon enters the settling channel of the main mechanism box under the influence of the airflow. At this time, the airflow impacts the inner wall of the sealing plate seat, rises along the sealing plate seat, and enters the second dust-suppressing mechanism. Most of the powdered activated carbon with weight will settle downwards along the sealing plate seat and fall directly into the activated carbon bin through the discharge pipe. Furthermore, when the sealing plate seat rotates to block the jet pipeline, the airflow in the settling channel is cut off, allowing the powdered activated carbon to settle more quickly in a windless environment, completing the first dust-suppressing operation. Then, after the first dust-suppressing operation, the airflow still carrying powdered activated carbon enters the second dust-suppressing mechanism for a second dust-suppressing operation, allowing for further collection and settling of the powdered activated carbon, thereby improving the collection efficiency and reducing the loss of powdered activated carbon during transportation.

[0009] Optionally, the inner peripheral wall of the sealing plate seat is provided with multiple dust suppression plates. The dust suppression plates are inclined downward along the direction close to the central axis of the sealing plate seat, and each dust suppression plate is arranged at intervals along the axial direction of the sealing plate seat.

[0010] By adopting the above technical solution, the dust suppression plate can intercept and hinder the powdered activated carbon after it settles downwards, reducing the upward dispersion of the powdered activated carbon under the negative pressure of the airflow above.

[0011] Optionally, a first partition is provided inside the main mechanism box, and a flow chamber is formed between the first partition and the top wall of the main mechanism box. The flow chamber is connected to the settling channel, and the bottom wall of the flow chamber is provided with a vertical through first opening. The second dust suppression mechanism includes a dust suppression inner box located below the first partition and multiple sets of interception components installed inside the dust suppression inner box. The inner top wall of the dust suppression inner box is provided with an airflow inlet, which is connected to the first outlet. The side of the dust suppression inner box away from the settling channel is provided with an airflow outlet, which is connected to the exhaust pipe through a first bellows pipe. A filter screen is installed at the airflow outlet.

[0012] By adopting the above technical solution, the airflow carrying powdered activated carbon enters the dust settling inner chamber after passing through the flow chamber, the first inlet and the airflow inlet. The powder settles first in the dust settling inner chamber, and then the powdered activated carbon settles again when the airflow passes through the interception component. This enables the powdered activated carbon to be effectively settled and separated, reducing the loss of powdered activated carbon during transportation.

[0013] Optionally, the interception component includes a first arc-shaped baffle fixed to the top wall of the inner dust collection chamber and a second arc-shaped baffle fixed to the bottom wall of the inner dust collection chamber. The bottom of the first arc-shaped baffle and the top of the second arc-shaped baffle are partially opposite each other, and a dust collection area for airflow is formed between them.

[0014] By adopting the above technical solution, a dust-falling zone can be formed between the first and second arc-shaped baffles that are directly opposite each other. The airflow carrying powdered activated carbon needs to flow upward to pass through the dust-falling zone. When the powdered activated carbon with a certain weight moves upward, it needs to overcome gravity. Furthermore, due to the friction between the powdered activated carbon and the side of the second arc-shaped baffle, it needs to overcome even greater force. Therefore, more powdered activated carbon will fall below the dust-falling zone and be collected, thereby enabling effective separation of the powder.

[0015] Optionally, the second dust suppression mechanism also includes a swaying mechanism for driving the inner dust suppression chamber to sway back and forth; wherein, the swaying mechanism includes a connecting main shaft, a fixed sleeve, a rotating disk and a rotating motor, the connecting main shaft is fixedly connected to the side of the inner dust suppression chamber, and the fixed sleeve is fixed to the outer periphery of the connecting main shaft; the side of the fixed sleeve is provided with a receiving groove, and a moving block is movably installed inside the receiving groove, and the moving block is provided with a central hole; The rotating disk is mounted on the outside of the main mechanism box, and the rotating motor is connected to the rotating disk to drive the rotating disk to rotate. An inclined guide post is provided on the side of the rotating disk near the fixed sleeve. The inclined guide post is inclined in the direction close to the central axis of the rotating disk. The inclined guide post passes through the central hole and is always located in the central hole.

[0016] By adopting the above technical solution, a rotary motor is used to drive the rotating disk. During the rotation of the disk, the inclined guide column rotates circumferentially around the central axis of the disk, which forces the moving block to drive the fixed sleeve, causing the fixed sleeve to oscillate back and forth within a specific range around the central axis of the connecting main shaft. This achieves the effect of oscillating back and forth between the connecting main shaft and the dust collection inner chamber. In actual production, by starting the rotary motor at regular intervals to force the dust collection inner chamber to oscillate back and forth, the powdered activated carbon that has settled in the dead corners of the inner edge of the dust collection inner chamber can be lifted up, solving the problem of long-term accumulation of powdered activated carbon that is difficult to clean, and ensuring the quality of the powdered activated carbon used.

[0017] Optionally, a second partition is provided inside the main mechanism box, and a storage chamber is formed between the second partition and the bottom wall of the main mechanism box. The storage chamber is not connected to the settling channel. The second partition has multiple vertically penetrating second openings. The inner bottom wall of the dust collection chamber is provided with multiple settling ports, and the number of settling ports is matched with the number of second openings; some of the settling ports are directly opposite the airflow inlet, and the other settling ports are directly opposite the side of the interception component near the airflow inlet. Each settling port is connected to the second opening through a second bellows pipe. The inner bottom wall of the main mechanism box is provided with a discharge port that is connected to the discharge pipe. In the initial state, the discharge port and the storage chamber are isolated from each other, and the storage chamber is sealed at this time.

[0018] By adopting the above technical solution, the powdered activated carbon that settles in the dust settling chamber can fall into the storage chamber through the settling port and the second outlet. Since the storage chamber is in a normally sealed state and is not connected to the inside of the activated carbon silo, the airflow can only flow in one direction towards the airflow outlet and be smoothly discharged into the outside air, which can reduce the occurrence of the powdered activated carbon stored in the activated carbon silo being carried away and dispersed by the airflow.

[0019] Optionally, the storage chamber is equipped with a partition mechanism, which includes multiple interconnected partitions and a pushing component for driving the partitions to move synchronously. The partitions are U-shaped, and each partition covers a corresponding discharge port. A sealed storage area is formed between every two adjacent partitions, and the second opening is directly opposite the storage area. When the pushing component is activated, the partitions move towards the adjacent discharge port and push the powdered activated carbon to the discharge port. Then the pushing component resets, and the activated carbon chamber can be sealed again with minimal gas flow, which is conducive to the downward settling and collection of the powdered activated carbon in the activated carbon chamber.

[0020] By adopting the above technical solution, the partition plate can be normally installed over the discharge port, thereby keeping the inside of the storage chamber sealed to facilitate unidirectional airflow within the main mechanism box. When the pushing component is activated, the partition plate moves towards the adjacent discharge port, which can scrape and push the powdered activated carbon falling in the storage area to the discharge port. Finally, the powdered activated carbon can pass through the discharge port and fall into the activated carbon bin below, so as to collect the powdered activated carbon smoothly.

[0021] Optionally, the pushing assembly includes a hollow tube installed inside the main mechanism housing and a movable tube movably connected to the hollow tube. The end of the movable tube away from the hollow tube is closed and fixed to the partition plate. The end of the hollow tube away from the movable tube passes through to the jet pipeline and is connected to the jet pipeline. A one-way valve assembly is provided between the movable tube and the jet pipeline. When the sealing plate seat rotates to block the jet pipeline, the one-way valve assembly is in the open state.

[0022] By adopting the above technical solution, by connecting the end of the hollow tube to the jet pipeline, when the drive component forces the sealing plate seat to rotate to seal the jet pipeline, the airflow can break through the one-way valve group and enter the interior of the hollow tube, thereby forcing the movable tube to move away from the hollow tube; based on this, the movable tube pushes the partition plate to move closer to the discharge port, which can push the powdered activated carbon into the activated carbon bin for collection.

[0023] Optionally, the one-way valve assembly includes a spring member disposed inside the hollow tube and a movable ball valve connected to the end of the spring member. The hollow tube has a constricted section at one end near the jet pipeline, and the spring member normally forces the movable ball valve against the constricted section.

[0024] By adopting the above technical solution, and by setting a spring component to generate elastic force acting on the movable ball valve, the movable ball valve can normally abut against the constriction, at which time the hollow pipe remains in a closed state; when the sealing plate seat rotates to seal the jet pipe, the airflow pressure inside the jet pipe increases, which can push open the movable ball valve and make it separate from the constriction. The spring component remains in an inward retracted state under the airflow pressure, thereby making the hollow pipe open; as the airflow continues to enter the closed space inside the hollow pipe and the movable pipe, the airflow can smoothly push the movable pipe and each partition plate to move in the storage chamber.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The airflow in this application is amplified and accelerated by an airflow amplifier to form a jet. After the jet enters the transfer box, it can carry the powdered activated carbon into the dust removal unit for collection. The automatic feeding of powdered activated carbon is completed by airflow transportation, which has high feeding efficiency and does not require manual assistance, which can greatly reduce labor costs and facilitate its promotion and application. 2. By setting up a first dust suppression unit and a second dust suppression unit, the airflow carrying powdered activated carbon can be effectively settled and collected after two dust suppression operations, thereby improving the collection efficiency of powdered activated carbon and reducing the loss of powdered activated carbon during transportation. 3. By setting up a swing mechanism to force the dust settling inner chamber to swing back and forth within a specific range around the central axis of the connecting main shaft, the powdered activated carbon that has settled in the dead corners of the inner edge of the dust settling inner chamber can be lifted up, thus solving the problem of long-term accumulation of powdered activated carbon that is difficult to clean, and ensuring the quality of powdered activated carbon in use. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 This is a partial cross-sectional view of the dust removal unit and activated carbon chamber in this embodiment; Figure 3 This is a schematic diagram of the first dust suppression mechanism in this embodiment; Figure 4 This is a half-sectional structural diagram of the dust removal unit in this embodiment; Figure 5 yes Figure 4 Enlarged view of point A in the middle; Figure 6This is a partial structural diagram of the side of the main mechanism box in this embodiment, mainly showing the specific structure of the swing mechanism; Figure 7 This is a schematic diagram of the partition mechanism in this embodiment; Figure 8 This is a half-section structural diagram of the hollow pipe in this embodiment, mainly illustrating the specific structure of the one-way valve assembly.

[0027] Explanation of reference numerals in the attached diagram: 1. Transfer box; 11. Air inlet duct; 12. Jet duct; 2. Feeding unit; 21. Feeding chamber; 3. Air supply unit; 31. Roots blower; 32. Airflow amplifier; 4. Activated carbon bin; 41. Material discharge pipe; 5. Dust removal unit; 6. Main mechanism box; 61. Insertion interface; 62. Settling channel; 63. First partition; 631. First opening; 64. Flow chamber; 65. Exhaust duct; 66. First bellows pipe; 67. Second partition; 671. Second opening; 68. Storage chamber; 69. Discharge port; 7. First dust suppression mechanism; 71. Sealing plate seat; 711. Cutting groove; 712. Dust suppression plate; 72. Drive assembly; 721. Drive motor; 722. Fixed claw plate; 8. Second dust suppression mechanism; 81. Dust suppression inner chamber; 811. Airflow inlet; 812. Elastic pad; 813. Airflow outlet; 814. Filter screen plate; 815. Settling port; 816. Second bellows pipe; 82. Interception assembly; 821. First arc-shaped baffle; 822. Second arc-shaped baffle; 823. Dust suppression area; 83. Swinging mechanism; 831. Connecting main shaft; 832. Fixed sleeve; 8321. Receiving groove; 833. Moving block; 834. Rotary disk; 8341. Inclined guide column; 835. Rotary motor; 84. Connecting pipe; 9. Partition mechanism; 91. Divider plate; 911. Storage area; 92. Hollow pipe fitting; 921. Narrow section; 93. Movable pipe fitting; 94. One-way valve assembly; 941. Spring component; 942. Movable ball valve. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1 -Appendix Figure 8 This application will be described in further detail.

[0029] This application discloses an automatic powdered activated carbon feeding system.

[0030] Reference Figure 1An automatic powdered activated carbon feeding system includes a transfer box 1, a feeding unit 2, an air supply unit 3, a dust removal unit 5, and an activated carbon bin 4. The feeding unit 2 includes a feeding chamber 21 and a screw conveyor (not shown in the figure). The feeding chamber 21 is mounted on a ground foundation, and the screw conveyor is located inside the feeding chamber 21. The transfer box 1 is mounted on the ground foundation and located outside the feeding chamber 21, with the end of the screw conveyor connected to the interior of the transfer box 1. Based on this, by adding powdered activated carbon into the feeding chamber 21 and controlling the operation of the screw conveyor, the screw conveyor can continuously transport a fixed amount of powdered activated carbon to the transfer box 1.

[0031] The two opposite sides of the transfer box 1 are respectively connected to the air inlet pipe 11 and the jet pipe 12. The air supply unit 3 includes a Roots blower 31 installed on the ground foundation and an airflow amplifier 32 connected to the air outlet of the Roots blower 31. The end of the airflow amplifier 32 away from the Roots blower 31 is connected to the air inlet pipe 11. Based on this, when the Roots blower 31 is operating, it can blow airflow into the air inlet pipe 11. After the airflow passes through the airflow amplifier 32, it can be accelerated and form a jet, which enters the transfer box 1 at a very fast flow rate, and then can carry the powdered activated carbon in the transfer box 1 into the jet pipe 12 quickly.

[0032] The dust removal unit 5 is located at the end of the jet pipe 12 furthest from the transfer box 1. It can intercept the powdered activated carbon in the airflow, while the airflow can smoothly pass through the dust removal unit 5 and be discharged, thus collecting the powdered activated carbon. The activated carbon bin 4 is located below the dust removal unit 5 and is sealed. The activated carbon bin 4 is connected to the inside of the dust removal unit 5, allowing the intercepted powdered activated carbon to fall into the activated carbon bin 4, so that it can be added to various waste treatment equipment for subsequent use.

[0033] Specific reference Figure 2 The dust removal unit 5 includes a main mechanism box 6, a first dust settling mechanism 7, and a second dust settling mechanism 8. The main mechanism box 6 is fixedly mounted on top of the activated carbon bin 4. The side of the main mechanism box 6 has an insertion interface 61 that communicates with the interior, serving as the air inlet for the dust removal unit 5. The end of the jet pipe 12 furthest from the transfer box 1 is inserted into the insertion interface 61, thus communicating with the interior of the main mechanism box 6. Inside the main mechanism box 6 is a settling channel 62 that communicates directly with the insertion interface 61. The settling channel 62 is vertically arranged, with its bottom end extending through the bottom surface of the main mechanism box 6. A discharge pipe 41 is fixedly mounted on the top of the activated carbon bin 4, and the settling channel 62 is directly connected to the discharge pipe 41.

[0034] In this embodiment, the cross-section of the settling channel 62 is circular; and referring to... Figure 3The first dust suppression mechanism 7 includes a sealing plate seat 71 and a drive assembly 72. The sealing plate seat 71 is rotatably disposed inside the settling channel 62. The outer diameter of the sealing plate seat 71 is equal to the inner diameter of the settling channel 62. A notch 711 is provided on the outer circumferential surface of the sealing plate seat 71. The notch 711 passes through the upper and lower end faces of the sealing plate seat 71, making the sealing plate seat 71 as a whole crescent shape. The jet pipe 12 is normally in direct communication with the notch 711.

[0035] The drive assembly 72 includes a drive motor 721 rotatably mounted on the top of the main mechanism housing 6 and a fixed claw plate 722 connected to the output shaft of the drive motor 721. The fixed claw plate 722 is fixedly connected to the top of the sealing plate seat 71. It should be noted that when the drive motor 721 is controlled to operate, the drive motor 721 can drive the sealing plate seat 71 to rotate circumferentially around its own central axis. At this time, the sealing plate seat 71 can intermittently seal the jet pipe 12.

[0036] The main mechanism box 6 is provided with a first partition 63. A flow chamber 64 is formed between the first partition 63 and the inner top wall of the main mechanism box 6. The settling channel 62 can communicate with the flow chamber 64, and the flow chamber 64 can communicate with the second dust suppression mechanism 8.

[0037] In the specific production process, the notch 711 is first aligned with the jet pipe 12. After the airflow in the jet pipe 12 enters the sealing plate seat 71, the airflow can flow upward along the settling channel 62 and enter the flow chamber 64. The powdered activated carbon carried in the airflow can settle downward under the action of gravity and fall directly into the activated carbon bin 4 through the discharge pipe 41. Furthermore, as the drive motor 721 operates to drive the sealing plate seat 71 to rotate, when the sealing plate seat 71 rotates to block the jet pipe 12, the airflow in the settling channel 62 is cut off. The powdered activated carbon can settle downward more quickly in a windless environment to complete the first dust suppression operation.

[0038] In addition, refer to Figure 3 The inner peripheral wall of the sealing plate seat 71 is also provided with multiple dust suppression plates 712. The dust suppression plates 712 are inclined downward along the direction close to the central axis of the sealing plate seat 71, and each dust suppression plate 712 is equidistant along the axial direction of the sealing plate seat 71. The setting of the dust suppression plates 712 can produce a certain interception and obstruction effect after the powdered activated carbon settles downward, reducing the upward dispersion of the powdered activated carbon under the negative pressure of the airflow above.

[0039] Reference Figure 4The first partition 63 has a vertically penetrating first opening 631, which is offset from the settling channel 62. The second dust suppression mechanism 8 includes a dust suppression inner box 81, multiple sets of interception components 82 disposed inside the dust suppression inner box 81, and a swing mechanism 83 for driving the dust suppression inner box 81 to swing back and forth. The dust suppression inner box 81 is mounted inside the main mechanism box 6 through the swing mechanism 83, and the dust suppression inner box 81 is located below the first partition 63. The top of the dust suppression inner box 81 has an airflow inlet 811 that communicates with the inner side. A connecting pipe 84 is movably disposed between the airflow inlet 811 and the first opening 631 to realize the mutual communication between the airflow inlet 811 and the first opening 631.

[0040] Specifically, the connecting pipe 84 is slidably installed at the bottom of the first partition 63 through the cooperation of the dovetail block and the dovetail groove, and the sliding direction of the connecting pipe 84 is the same as the extension direction of the main mechanism box 6; the connecting pipe 84 is always located directly below the first opening 631, and the connecting pipe 84 is partially extended to the inside of the airflow inlet 811; an elastic pad 812 is provided between the connecting pipe 84 and the inside of the airflow inlet 811. The setting of the elastic pad 812 can not only ensure the sealing effect between the connecting pipe 84 and the airflow inlet 811, but also allow the dust collection inner box 81 to swing smoothly under the drive of the swing mechanism 83, reducing the possibility of structural interference.

[0041] The main housing 6 is connected to an exhaust duct 65 on the side away from the jet duct 12. The dust collection inner housing 81 is provided with an air outlet 813 on the side away from the settling channel 62. A first bellows pipe 66 is provided between the air outlet 813 and the exhaust duct 65 to realize the movable connection between the air outlet 813 and the exhaust duct 65. The air outlet 813 serves as the exhaust port of the dust removal unit 5 and is equipped with a filter screen plate 814. The surface of the filter screen plate 814 is provided with micropores, which can effectively block powdered activated carbon and allow the airflow to pass smoothly through the filter screen plate 814 and be discharged along the exhaust duct.

[0042] Reference Figure 5 In this embodiment, the number of interception components 82 is provided in two sets, and the two sets of interception components 82 are arranged at intervals along the extension direction of the dust collection inner box 81. It should be noted that in other feasible embodiments, the number of interception components 82 can also be 3, 4 or 5 sets, and is not limited to the manner shown in this embodiment. Specifically, the interception component 82 includes a first arc-shaped baffle 821 fixed to the inner top wall of the dust collection inner box 81 and a second arc-shaped baffle 822 fixed to the inner bottom wall of the dust collection inner box 81. The bottom of the first arc-shaped baffle 821 and the top of the second arc-shaped baffle 822 are partially opposite to each other, and a dust collection area 823 for airflow is formed between them; and the inner arc surface of the first arc-shaped baffle 821 and the inner arc surface of the second arc-shaped baffle 822 are directly opposite each other.

[0043] After the airflow enters the dust settling chamber 81, it can pass through the dust settling area 823 and flow upward. The powdered activated carbon carried in the airflow is subject to gravity and frictional resistance from the first arc-shaped baffle 821 / second arc-shaped baffle 822, and can settle in the dust settling area 823 to complete the second dust settling operation. After multiple settling, the amount of powdered activated carbon is greatly reduced, so that when the airflow passes through the filter screen plate 814, the amount of powdered activated carbon adhering to the pores of the filter screen plate 814 is small, and the possibility of the filter screen plate 814 being blocked is small.

[0044] Simultaneously refer to Figure 4 The main mechanism box 6 has a second partition 67 inside, forming a storage chamber 68 between the second partition 67 and the inner bottom wall of the main mechanism box 6. The storage chamber 68 is isolated from and does not communicate with the settling channel 62. The second partition 67 has multiple vertically penetrating second openings 671, and the inner bottom wall of the dust settling inner box 81 has multiple settling ports 815. The number of settling ports 815 is equal to the number of second openings 671. Each settling port 815 is positioned directly above each second opening 671, and each settling port 815 is connected to the corresponding second opening 671 via a second bellows pipe 816. In this embodiment, some settling ports 815 face the airflow inlet 811, while others face each dust settling area 823, facilitating the smooth falling of the settled powdered activated carbon into the storage chamber 68.

[0045] Reference Figure 6 The swing mechanism 83 forces the dust collection inner box 81 to swing back and forth, so as to lift the powdered activated carbon in the dead corners inside the dust collection inner box 81 and solve the problem of long-term accumulation of powdered activated carbon that is difficult to clean. The swing mechanism 83 includes a connecting main shaft 831, a fixed sleeve 832, a rotating disk 834 and a rotating motor 835. The connecting main shaft 831 is fixedly connected to the side of the dust collection inner box 81, and the end of the connecting main shaft 831 away from the dust collection inner box 81 extends to the outside of the main mechanism box 6. The fixed sleeve 832 is fixed to the outer periphery of the connecting main shaft 831, and a receiving groove 8321 is opened on one side of the fixed sleeve 832. A moving block 833 is movably installed inside the receiving groove 8321. The moving block 833 can move freely in the receiving groove 8321 and will not leave the receiving groove 8321.

[0046] A side support is fixed to the outer side of the main mechanism box 6, and the rotating disk 834 is rotatably mounted on the side support. The rotary motor 835 is fixed to the main mechanism box 6, and the output shaft of the rotary motor 835 is connected to the rotating disk 834 to drive the rotating disk 834 to rotate circumferentially around its own central axis. An inclined guide post 8341 is fixed to the side of the rotating disk 834 near the fixed sleeve 832. The inclined guide post 8341 is inclined towards the central axis of the rotating disk 834. The moving block 833 has a central hole, and the inclined guide post 8341 can be matched and passed through the central hole. When the rotating disk 834 rotates, the inclined guide post 8341 is always located in the central hole.

[0047] When the rotary motor 835 operates, the rotating disk 834 and the inclined guide post 8341 can rotate together around the central axis of the rotating disk 834. During the rotation of the inclined guide post 8341, the moving block 833 and the fixed sleeve 832 can be forced to move, so that the fixed sleeve 832 can reciprocate around the central axis of the connecting main shaft 831 within a specific range, thereby achieving the effect of reciprocating the connecting main shaft 831 and the dust collection inner box 81; based on this, the powdered activated carbon in the dead corner of the inner edge of the dust collection inner box 81 can be lifted.

[0048] Back Figure 4 The inner bottom wall of the main mechanism box 6 has multiple material discharge ports 69, each of which is connected to the material discharge pipe 41, and all material discharge ports 69 are equidistantly arranged along the extension direction of the main mechanism box 6; the storage chamber 68 is equipped with a partition mechanism 9, and at the same time refers to Figure 7 The partition mechanism 9 includes multiple interconnected partition plates 91 and a pushing component for driving the partition plates 91 to move synchronously. In this embodiment, the partition plates 91 are U-shaped, and the number of partition plates 91 is equal to the number of discharge ports 69. Each partition plate 91 is respectively covered by each discharge port 69, so that the discharge port 69 is normally isolated from the storage chamber 68, and the storage chamber 68 can be sealed. A sealed storage area 911 is formed between every two adjacent partition plates 91. Each second opening 671 can be directly connected to each storage area 911, that is, the settled powdered activated carbon can fall into the storage area 911 through the second opening 671.

[0049] Reference Figure 4 , Figure 7 The pushing assembly includes a hollow tube 92 and a movable tube 93. The hollow tube 92 is fixed inside the main mechanism box 6. One end of the hollow tube 92 passes through the jet pipe 12 and is connected to the jet pipe 12. The end of the hollow tube 92 near the jet pipe 12 has a built-in one-way valve group 94. The one-way valve group 94 is normally closed, but when the sealing plate seat 71 is rotated to seal the jet pipe 12, the one-way valve group 94 can be in the open state.

[0050] Specific reference Figure 8 The one-way valve assembly 94 includes a spring member 941 built into the inside of the hollow tube 92 and a movable ball valve 942 connected to the end of the spring member 941. The hollow tube 92 has a constricted portion 921 at one end near the jet pipe 12, the inner diameter of which is smaller than the outer diameter of the movable ball valve 942. Under the elastic force of the spring member 941, the movable ball valve 942 normally rests against the constricted portion 921, at which point the one-way valve assembly 94 is normally closed. However, when the sealing plate seat 71 rotates to seal the jet pipe 12, the airflow pressure inside the jet pipe 12 increases, and the airflow can open the movable ball valve and force the spring member 941 to retract. At this time, the movable ball valve 942 can disengage from the constricted portion 921, and the hollow tube 92 is in an open state to allow airflow to enter the inside of the hollow tube 92.

[0051] The movable tube 93 is movably sleeved on the outer periphery of the hollow tube 92. One end of the movable tube 93 is hollow and can communicate with the inner side of the hollow tube 92. The end of the movable tube 93 away from the hollow tube 92 is closed and fixed to one of the partition plates 91. When the sealing plate seat 71 rotates to block the jet pipe 12, the airflow enters the inner side of the hollow tube 92, which can force the movable tube 93 to move away from the hollow tube 92. Finally, the movable tube 93 pushes each partition plate 91 to move closer to the adjacent discharge port 69, thereby pushing the powdered activated carbon that falls in the storage area 911 to the discharge port 69, so that the powdered activated carbon can fall into the activated carbon bin 4 for collection, completing the automatic feeding operation.

[0052] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A powder activated carbon automatic feeding system, characterized in that, The utility model relates to a kind of powder activated carbon injection device, including: Transfer box (1), air inlet pipeline (11) and jet pipeline (12) are connected with respectively; Feeding unit (2), the feeding unit (2) includes for adding powder activated carbon feeding cabin (21) and for conveying powder activated carbon screw conveyor, the end of the screw conveyor is connected with the inside of transfer box (1); Air supply unit (3), the air supply unit (3) includes Roots blower (31) and airflow amplifier (32) connected to the air outlet of Roots blower (31), the end of airflow amplifier (32) away from Roots blower (31) is connected to air inlet pipeline (11); Dust removal unit (5), the end of jet pipeline (12) away from transfer box (1) is connected to the air inlet of dust removal unit (5), and the air outlet of dust removal unit (5) is provided with filter screen plate (814) for intercepting powder activated carbon; Activated carbon bin (4), the activated carbon bin (4) is arranged below dust removal unit (5) and is arranged in a closed manner, and the top of the activated carbon bin (4) is provided with a drop pipe (41), which is communicated with the inside of dust removal unit (5).

2. The automatic powdered activated carbon feeding system of claim 1, wherein: The dust removal unit (5) includes a main mechanism box (6), a first dust falling mechanism (7) and a second dust falling mechanism (8) arranged inside the main mechanism box (6), and the end of the jet pipeline (12) away from the transfer box (1) is communicated with the inside of the main mechanism box (6). The inside of the main mechanism box (6) is provided with a vertical settling channel (62), and the jet pipeline (12) is always opposite to the settling channel (62). The bottom of the settling channel (62) is communicated with the drop pipe (41), and the top of the settling channel (62) is communicated with the second dust falling mechanism (8). The side surface of the main mechanism box (6) is connected with an exhaust pipeline (65) for exhausting air, and the second dust falling mechanism (8) is connected with the exhaust pipeline (65). The first dust falling mechanism (7) includes a sealing plate seat (71) rotatably installed in the settling channel (62) and a driving assembly (72) for driving the sealing plate seat (71) to rotate. The outer peripheral surface of the sealing plate seat (71) is provided with a cutout groove (711) penetrating through the two side end surfaces of the sealing plate seat (71), and the jet pipeline (12) is always opposite to the cutout groove (711). When the driving assembly (72) operates, the sealing plate seat (71) intermittently blocks the jet pipeline (12).

3. The automatic powdered activated carbon feeding system of claim 2, wherein: The inner peripheral wall of the sealing plate seat (71) is provided with a plurality of dust suppression plates (712), which are inclined downward along the direction close to the central axis of the sealing plate seat (71). Each dust suppression plate (712) is spaced apart along the axis direction of the sealing plate seat (71).

4. The automatic powdered activated carbon feeding system of claim 2, wherein: The inside of the main mechanism box (6) is provided with a first partition plate (63), and a flow chamber (64) is formed between the first partition plate (63) and the inner top wall of the main mechanism box (6). The flow chamber (64) is communicated with the settling channel (62), and the inner bottom wall of the flow chamber (64) is provided with a vertical first through hole (631). The second dust falling mechanism (8) comprises a dust falling inner box (81) arranged below the first partition plate (63) and a plurality of interception assemblies (82) installed inside the dust falling inner box (81), the inner top wall of the dust falling inner box (81) is provided with an air flow inlet (811), the air flow inlet (811) and the first through hole (631) are in communication with each other, one side of the dust falling inner box (81) away from the sedimentation channel (62) is provided with an air flow outlet (813), the air flow outlet (813) and the exhaust pipeline (65) are connected through the first organ pipe (66), and the filter screen plate (814) is installed on the air flow outlet (813).

5. The automatic powdered activated carbon feeding system of claim 4, wherein: The interception assembly (82) comprises a first arc-shaped baffle (821) fixed to the inner top wall of the dust falling inner box (81) and a second arc-shaped baffle (822) fixed to the inner bottom wall of the dust falling inner box (81), the bottom of the first arc-shaped baffle (821) is locally opposite to the top of the second arc-shaped baffle (822), and a dust falling area (823) for air flow is formed between the first arc-shaped baffle (821) and the second arc-shaped baffle (822).

6. The automatic powdered activated carbon feeding system of claim 4, wherein: The second dust falling mechanism (8) further comprises a swinging mechanism (83) for driving the dust falling inner box (81) to swing back and forth, the swinging mechanism (83) comprises a connecting main shaft (831), a fixed sleeve (832), a rotating disc (834) and a rotating motor (835), the connecting main shaft (831) is fixedly connected to the side of the dust falling inner box (81), and the fixed sleeve (832) is fixed to the outer circumferential side of the connecting main shaft (831); a containing groove (8321) is formed in the side of the fixed sleeve (832), a moving block (833) is movably installed in the containing groove (8321), and the moving block (833) is provided with a central hole; the rotating disc (834) is rotatably arranged on the outside of the main mechanism box (6), the rotating motor (835) is connected to the rotating disc (834) for driving the rotating disc (834) to rotate, the side of the rotating disc (834) close to the fixed sleeve (832) is provided with an inclined guide column (8341), the inclined guide column (8341) is arranged to be inclined to the direction close to the central axis of the rotating disc (834), and the inclined guide column (8341) penetrates through the central hole and is always located in the central hole.

7. The automatic powdered activated carbon feeding system of claim 4, wherein: The main mechanism box (6) is internally provided with a second partition plate (67), a storage chamber (68) is formed between the second partition plate (67) and the inner bottom wall of the main mechanism box (6), and the storage chamber (68) and the sedimentation channel (62) are not in communication with each other; a plurality of second through holes (671) vertically penetrating through the second partition plate (67) are formed; the inner bottom wall of the dust falling inner box (81) is provided with a plurality of sedimentation openings (815), the number of the sedimentation openings (815) is matched with that of the second through holes (671), part of the sedimentation openings (815) are opposite to the air flow inlet (811), another part of the sedimentation openings (815) are opposite to the side of the interception assembly (82) close to the air flow inlet (811), and each of the sedimentation openings (815) and the second through holes (671) are connected through a second organ pipe (816). The inner bottom wall of the main mechanism box (6) is provided with a blanking opening (69) communicated with the blanking pipeline (41), and the blanking opening (69) is separated from the storage chamber (68) in the initial state, and the storage chamber (68) is in a closed state.

8. The automatic powdered activated carbon feeding system of claim 7, wherein: The storage chamber (68) is internally provided with a partition mechanism (9), the partition mechanism (9) comprises a plurality of partition plates (91) connected with each other and a push-moving assembly for synchronously moving each partition plate (91); wherein the partition plate (91) is arranged in a U shape, each partition plate (91) is correspondingly arranged on each blanking opening (69); each two adjacent partition plates (91) form a closed storage area (911), and the second through hole (671) is opposite to the storage area (911); when the push-moving assembly is actuated, the partition plate (91) moves towards the adjacent blanking opening (69) and pushes the powdered activated carbon to the blanking opening (69).

9. The automatic powdered activated carbon feeding system of claim 8, wherein: The push-moving assembly comprises a hollow pipe (92) installed in the main mechanism box (6) and a movable pipe (93) movably connected to the hollow pipe (92), one end of the movable pipe (93) away from the hollow pipe (92) is closed and fixed to the partition plate (91); one end of the hollow pipe (92) away from the movable pipe (93) is provided in the jet pipeline (12) and communicated with the jet pipeline (12), and a one-way valve group (94) is arranged between the movable pipe (93) and the jet pipeline (12), when the sealing plate seat (71) is rotated to block the jet pipeline (12), the one-way valve group (94) is in an open state.

10. The automatic powdered activated carbon feeding system of claim 9, wherein: The one-way valve group (94) comprises a spring member (941) arranged in the hollow pipe (92) and a movable ball valve (942) connected to the end of the spring member (941), one end of the hollow pipe (92) close to the jet pipeline (12) is provided with a necked portion (921), and the spring member (941) always forces the movable ball valve (942) to abut against the necked portion (921).

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